Merge remote-tracking branch 'origin/parse-float-prefix' into HEAD

picolibc 1.8.10 (and its main) read them as hex digits, so "0x1:" was 26 and
parse_number<float> accepted it; newlib and the C standard stop there.

CODEOWNERS

@@ -149,7 +149,6 @@ esphome/components/cst226/* @clydebarrow
 esphome/components/cst328/* @latonita
 esphome/components/cst816/* @clydebarrow
 esphome/components/cst9220/* @clydebarrow
-esphome/components/cstxxx/* @clydebarrow @latonita
 esphome/components/ct_clamp/* @jesserockz
 esphome/components/current_based/* @djwmarcx
 esphome/components/cw2017/* @exciton
@@ -742,7 +741,7 @@ esphome/components/web_server_idf/* @dentra
 esphome/components/weikai/* @DrCoolZic
 esphome/components/weikai_i2c/* @DrCoolZic
 esphome/components/weikai_spi/* @DrCoolZic
-esphome/components/whirlpool/* @arpena @glmnet @Rodrigoah
+esphome/components/whirlpool/* @arpena @glmnet
 esphome/components/whynter/* @aeonsablaze
 esphome/components/wiegand/* @ssieb
 esphome/components/wireguard/* @droscy @lhoracek @thomas0bernard

esphome/analyze_memory/__init__.py

@@ -1,9 +1,7 @@
 """Memory usage analyzer for ESPHome compiled binaries."""
 
 from collections import Counter, defaultdict
-from collections.abc import Container
 from dataclasses import dataclass, field
-from functools import cached_property
 import logging
 from pathlib import Path
 import re
@@ -57,7 +55,6 @@ _COMPONENT_PREFIX_EXTERNAL = "[external]"
 _COMPONENT_PREFIX_LIB = "[lib]"
 _COMPONENT_CORE = f"{_COMPONENT_PREFIX_ESPHOME}core"
 _COMPONENT_API = f"{_COMPONENT_PREFIX_ESPHOME}api"
-_COMPONENT_ARDUINO_CORE = "arduino_core"
 
 # Placement new storage suffix (generated by codegen Pvariable)
 _PSTORAGE_SUFFIX = "__pstorage"
@@ -86,28 +83,6 @@ _NAMESPACE_STD = "std::"
 # Type alias for symbol information: (symbol_name, size, component)
 SymbolInfoType = tuple[str, int, str]
 
-# Only ESP8266 has this section; its .rodata is copied to RAM at boot like .data
-_ESP8266_FLASH_CODE_SECTION = ".irom0.text"
-
-# readelf -SW row: [Nr] Name Type Address Off Size ES Flg
-_OBJ_SECTION_PATTERN = re.compile(
-    r"^\s*\[\s*(\d+)\]\s+(\S+)\s+(\S+)\s+[\da-f]+\s+[\da-f]+\s+([\da-f]+)\s+[\da-f]+\s+(\S*)"
-)
-_RELOC_SECTION_PATTERN = re.compile(r"^Relocation section '\.rela(\S+)'")
-# String literal section; group 1 is the function for -fdata-sections names
-_STRING_SECTION_PATTERN = re.compile(r"^\.rodata(?:\.(.+))?\.str\d+\.\d+$")
-# Data section of one symbol; group 1 is the symbol
-_DATA_SECTION_PATTERN = re.compile(r"^\.(?:rodata|data)\.(.+)$")
-# Code section; group 1 is the function for -ffunction-sections names, after any
-# placement prefix (.text.startup.<fn>, .iram.text.<fn> for IRAM_ATTR)
-_CODE_SECTION_PATTERN = re.compile(
-    r"^\.(?:literal|text|irom0\.text|iram\.text|iram0\.text)"
-    r"(?:\.(?:startup|unlikely|hot|exit)(?=\.|$))?(?:\.(.+))?$"
-)
-# readelf -x row: "  0x00000000 0000803f 0000803f 0000803f 0000803f ...?...?...?...?"
-_HEX_DUMP_PREFIX = "  0x"
-_HEX_DUMP_COLUMNS = slice(13, 48)
-
 # RAM sections - symbols in these sections consume RAM
 RAM_SECTIONS = frozenset([".data", ".bss"])
 
@@ -144,29 +119,6 @@ class SDKSymbol:
     demangled: str = ""  # Demangled name (populated after analysis)
 
 
-@dataclass
-class UnnamedConstant:
-    """Constant without a symbol in an object's .rodata (RAM on ESP8266)."""
-
-    size: int
-    source_file: str
-    component: str
-    functions: list[str]  # Functions that reference it, mangled
-    jump_table: bool  # Holds code addresses (a switch table), not a value
-    data: bytes  # Leading bytes, to recognize the value
-    strings: list[str] = field(default_factory=list)  # String literals it points to
-
-
-@dataclass
-class StringLiteral:
-    """A string literal kept in RAM (.rodata on ESP8266)."""
-
-    text: str
-    size: int  # Bytes in RAM; strings shared or merged into a longer one count once
-    # Component -> functions or objects that use it, mangled
-    users: dict[str, set[str]] = field(default_factory=lambda: defaultdict(set))
-
-
 @dataclass
 class ComponentMemory:
     """Tracks memory usage for a component."""
@@ -200,188 +152,6 @@ class ComponentMemory:
         return self.data_size + self.bss_size
 
 
-@dataclass
-class _RodataSection:
-    """An object's .rodata section and the byte ranges its symbols cover."""
-
-    name: str
-    size: int
-    covered: list[tuple[int, int]] = field(default_factory=list)  # (offset, size)
-
-    @cached_property
-    def _named(self) -> frozenset[int]:
-        return frozenset(
-            offset
-            for start, size in self.covered
-            for offset in range(start, min(start + size, self.size))
-        )
-
-    def is_unnamed(self, offset: int) -> bool:
-        return 0 <= offset < self.size and offset not in self._named
-
-    @property
-    def unnamed_size(self) -> int:
-        return self.size - len(self._named)
-
-
-def _parse_string_sections(output: str) -> dict[str, dict[str, tuple[str, str | None]]]:
-    """Find string literal sections in ``readelf -SW`` output.
-
-    Returns:
-        Object path -> section index -> (section name, function it is named after)
-    """
-    sections: dict[str, dict[str, tuple[str, str | None]]] = defaultdict(dict)
-    file_path = ""
-    for line in output.splitlines():
-        if line.startswith("File: "):
-            file_path = line[6:]
-        elif (match := _OBJ_SECTION_PATTERN.match(line)) is not None:
-            index, name, section_type, size_hex, flags = match.groups()
-            if (
-                section_type == "PROGBITS"
-                and "S" in flags
-                and int(size_hex, 16)
-                and (string := _STRING_SECTION_PATTERN.match(name))
-            ):
-                sections[file_path][index] = (name, string.group(1))
-    return sections
-
-
-def _ram_string_size(text: bytes, rodata: bytes, literals: Container[bytes]) -> int:
-    """Bytes a literal takes in RAM: 0 if dropped or only the tail of another literal."""
-    needle = text + b"\0"
-    start = rodata.find(needle)
-    while start != -1:
-        head = rodata.rfind(b"\0", 0, start) + 1
-        # Bytes before it that are not one of our literals are other data
-        if start == head or rodata[head : start + len(text)] not in literals:
-            return len(needle)
-        start = rodata.find(needle, start + 1)
-    return 0
-
-
-def _parse_hex_dumps(output: str) -> dict[str, bytearray]:
-    """Collect the bytes of each ``readelf -x`` section dump by section name."""
-    contents: dict[str, bytearray] = defaultdict(bytearray)
-    section: str | None = None
-    for line in output.splitlines():
-        if line.startswith("Hex dump of section"):
-            section = line.split("'")[1]
-        elif section is not None and line.startswith(_HEX_DUMP_PREFIX):
-            contents[section] += bytes.fromhex(line[_HEX_DUMP_COLUMNS].replace(" ", ""))
-        elif line and not line.startswith(" "):
-            section = None
-    return contents
-
-
-def _parse_relocations(output: str) -> list[tuple[str, int, str, int]]:
-    """List (relocated section, offset, target, addend) from ``readelf -rW`` output."""
-    relocations: list[tuple[str, int, str, int]] = []
-    section: str | None = None
-    for line in output.splitlines():
-        if line.startswith("Relocation section"):
-            match = _RELOC_SECTION_PATTERN.match(line)
-            section = match.group(1) if match else None
-        elif line[:1].isdigit() and section is not None:
-            # Offset Info Type Sym.Value Sym.Name + Addend
-            fields = line.split()
-            if len(fields) < 5:
-                continue
-            addend = int(fields[6], 16) if len(fields) > 6 else 0
-            if len(fields) > 6 and fields[5] == "-":
-                addend = -addend
-            relocations.append((section, int(fields[0], 16), fields[4], addend))
-        elif line and line[0] != " ":
-            section = None
-    return relocations
-
-
-def _pointed_literal(
-    referrer: bytes, offset: int, addend: int, strings: bytes
-) -> bytes:
-    """Read the string literal a relocated pointer at ``offset`` refers to."""
-    # Xtensa keeps part of the addend in the relocated word
-    start = addend + int.from_bytes(referrer[offset : offset + 4], "little")
-    end = strings.find(b"\0", start)
-    return bytes(strings[start : end if end != -1 else len(strings)])
-
-
-def _section_user(section: str) -> str | None:
-    """The function or data symbol a -ffunction-sections/-fdata-sections name is for."""
-    match = _CODE_SECTION_PATTERN.match(section) or _DATA_SECTION_PATTERN.match(section)
-    return match.group(1) if match else None
-
-
-@dataclass
-class _FunctionDefinitions:
-    """Where each function is defined across the scanned objects."""
-
-    weak: dict[str, set[str]] = field(default_factory=lambda: defaultdict(set))
-    strong: set[str] = field(default_factory=set)  # Global, non-weak
-    count: Counter[str] = field(default_factory=Counter)  # Objects defining it
-
-    def linked_copy_unknown(self, file_path: str, functions: list[str]) -> bool:
-        """True if another object's copy of these functions may be the linked one."""
-        if self.weak[file_path].issuperset(functions):
-            # Inline copies: a strong definition elsewhere replaces them all
-            return not self.strong.isdisjoint(functions)
-        # Same-named local functions in several objects; the ELF can't tell them apart
-        return all(f not in self.strong and self.count[f] > 1 for f in functions)
-
-
-def _parse_unnamed_rodata(
-    output: str,
-) -> tuple[dict[str, dict[str, _RodataSection]], _FunctionDefinitions]:
-    """Find .rodata sections with bytes no symbol covers in ``readelf -SW -sW`` output.
-
-    Returns:
-        Object path -> section index -> section, and where functions are defined
-    """
-    sections: dict[str, dict[str, _RodataSection]] = defaultdict(dict)
-    definitions = _FunctionDefinitions()
-    file_path = ""
-    for line in output.splitlines():
-        if line.startswith("File: "):
-            file_path = line[6:]
-        elif match := _OBJ_SECTION_PATTERN.match(line):
-            index, name, section_type, size_hex, flags = match.groups()
-            # Merged sections (string literals) are shared between objects
-            if (
-                section_type == "PROGBITS"
-                and name.startswith(".rodata")
-                and "A" in flags
-                and "M" not in flags
-            ):
-                sections[file_path][index] = _RodataSection(name, int(size_hex, 16))
-        else:
-            # Num: Value Size Type Bind Vis Ndx Name
-            fields = line.split()
-            if len(fields) < 8:
-                continue
-            if fields[3] == "OBJECT" and (
-                section := sections[file_path].get(fields[6])
-            ):
-                section.covered.append((int(fields[1], 16), int(fields[2], 0)))
-            elif fields[3] == "FUNC" and fields[6] != "UND":
-                definitions.count[fields[7]] += 1
-                if fields[4] == "WEAK":
-                    definitions.weak[file_path].add(fields[7])
-                elif fields[4] == "GLOBAL":
-                    definitions.strong.add(fields[7])
-    unnamed = {
-        path: kept
-        for path, file_sections in sections.items()
-        if (
-            kept := {
-                index: section
-                for index, section in file_sections.items()
-                if section.unnamed_size
-            }
-        )
-    }
-    return unnamed, definitions
-
-
 class MemoryAnalyzer:
     """Analyzes memory usage from ELF files."""
 
@@ -461,10 +231,6 @@ class MemoryAnalyzer:
         self._heuristic_to_lib: dict[str, str] = {}
         # Function call counts: mangled_name -> call_count
         self._function_call_counts: Counter[str] = Counter()
-        # True on ESP8266, where .rodata is RAM; it is then counted as .data
-        self.rodata_in_ram = False
-        self._unnamed_constants: list[UnnamedConstant] = []
-        self._string_literals: list[StringLiteral] = []
 
     def analyze(self) -> dict[str, ComponentMemory]:
         """Analyze the ELF file and return component memory usage."""
@@ -474,7 +240,6 @@ class MemoryAnalyzer:
         self._scan_source_symbols()
         self._categorize_symbols()
         self._analyze_cswtch_symbols()
-        self._analyze_object_rodata()
         self._analyze_sdk_libraries()
         self._analyze_function_calls()
         return dict(self.components)
@@ -488,17 +253,18 @@ class MemoryAnalyzer:
             check=True,
         )
 
-        raw_sections = [
-            (match.group(1), int(match.group(2), 16))
-            for line in result.stdout.splitlines()
-            if (match := _READELF_SECTION_PATTERN.match(line))
-        ]
-        self.rodata_in_ram = any(
-            name == _ESP8266_FLASH_CODE_SECTION for name, _ in raw_sections
-        )
+        # Parse section headers
+        for line in result.stdout.splitlines():
+            # Look for section entries
+            if not (match := _READELF_SECTION_PATTERN.match(line)):
+                continue
 
-        for section_name, size in raw_sections:
-            mapped_section = self._standard_section(map_section_name(section_name))
+            section_name = match.group(1)
+            size_hex = match.group(2)
+            size = int(size_hex, 16)
+
+            # Map to standard section name
+            mapped_section = map_section_name(section_name)
             if not mapped_section:
                 continue
 
@@ -506,12 +272,6 @@ class MemoryAnalyzer:
                 self.sections[mapped_section] = MemorySection(mapped_section)
             self.sections[mapped_section].total_size += size
 
-    def _standard_section(self, section: str | None) -> str | None:
-        """Count .rodata as .data where it is RAM (ESP8266)."""
-        if section == ".rodata" and self.rodata_in_ram:
-            return ".data"
-        return section
-
     def _parse_symbols(self) -> None:
         """Parse symbols from ELF file."""
         result = subprocess.run(
@@ -529,18 +289,14 @@ class MemoryAnalyzer:
                 continue
 
             section, name, size, address = symbol_info
-            section = self._standard_section(section)
 
-            if section not in self.sections:
-                continue
-            # Every alias is in the ELF, even when its size is counted once
-            self._elf_symbol_names.add(name)
             # Skip duplicate symbols at the same address (e.g., C1/C2 constructors)
-            if address in seen_addresses:
+            if address in seen_addresses or section not in self.sections:
                 continue
 
             self.sections[section].symbols.append((name, size, ""))
             self.sections[section].symbol_size += size
+            self._elf_symbol_names.add(name)
             seen_addresses.add(address)
 
     def _categorize_symbols(self) -> None:
@@ -1169,12 +925,10 @@ class MemoryAnalyzer:
             Path to the directory containing .o files, or None if not found.
         """
         # The ELF is typically at .pioenvs/<env>/firmware.elf
-        # PlatformIO puts object files in .pioenvs/<env>/src/ and .pioenvs/<env>/lib*/,
-        # the native ESP8266 build in .pioenvs/<env>/obj/src/ and obj/lib/
+        # Object files are in .pioenvs/<env>/src/ and .pioenvs/<env>/lib*/
         pioenvs_dir = self.elf_path.parent
-        for obj_dir in (pioenvs_dir, pioenvs_dir / "obj"):
-            if any(obj_dir.glob("src/*.o")):
-                return obj_dir
+        if pioenvs_dir.exists() and any(pioenvs_dir.glob("src/*.o")):
+            return pioenvs_dir
         return None
 
     @staticmethod
@@ -1356,12 +1110,6 @@ class MemoryAnalyzer:
         ):
             return f"{_COMPONENT_PREFIX_LIB}{self._lib_hash_to_name[parts[1]]}"
 
-        # Native ESP8266 build: lib/<owner>__<Name>/... and the Arduino core in core/
-        if len(parts) >= 3 and parts[0] == "lib":
-            return f"{_COMPONENT_PREFIX_LIB}{parts[1].rsplit('__', 1)[-1].lower()}"
-        if len(parts) >= 2 and parts[0] == "core":
-            return _COMPONENT_ARDUINO_CORE
-
         # Other framework/library files - return the first path component
         # e.g., FrameworkArduino/... -> FrameworkArduino
         return parts[0] if parts else source_file
@@ -1443,7 +1191,9 @@ class MemoryAnalyzer:
                 and other_mem is not None
             ):
                 other_mem.add_section_size(section_name, -size)
-                self._add_component_size(component, section_name, size)
+                if component not in self.components:
+                    self.components[component] = ComponentMemory(component)
+                self.components[component].add_section_size(section_name, size)
 
         # Sort by size descending
         self._cswtch_symbols.sort(key=lambda x: x[1], reverse=True)
@@ -1455,254 +1205,6 @@ class MemoryAnalyzer:
             total_size,
         )
 
-    def _analyze_object_rodata(self) -> None:
-        """Attribute .rodata without a symbol, which is RAM on ESP8266, to components."""
-        if not self.rodata_in_ram or (obj_dir := self._find_object_files_dir()) is None:
-            return
-        result = run_tool(
-            [self.readelf_path, "-SW", "-sW"]
-            + [str(f) for f in sorted(obj_dir.rglob("*.o"))]
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("readelf failed scanning object files for constants")
-            return
-        self._attribute_unnamed_constants(result.stdout, obj_dir)
-        self._attribute_string_literals(result.stdout, obj_dir)
-        names = {n for c in self._unnamed_constants for n in c.functions} | {
-            n
-            for literal in self._string_literals
-            for users in literal.users.values()
-            for n in users
-        }
-        self._batch_demangle_symbols(sorted(names - self._demangle_cache.keys()))
-
-    def _attribute_unnamed_constants(self, output: str, obj_dir: Path) -> None:
-        """Attribute constants GCC copies into objects built from constant initializers."""
-        unnamed, definitions = _parse_unnamed_rodata(output)
-        # Inline (weak) functions are emitted, with their constants, in every
-        # object that uses them; the linker keeps one copy
-        inline_copies: dict[tuple[tuple[str, ...], int], str] = {}
-        for file_path, sections in unnamed.items():
-            rel_path = Path(file_path).relative_to(obj_dir).as_posix()
-            component = self._source_file_to_component(rel_path)
-            for constant in self._scan_object_constants(
-                file_path, sections, rel_path, component
-            ):
-                if definitions.linked_copy_unknown(file_path, constant.functions):
-                    continue
-                if definitions.weak[file_path].issuperset(constant.functions):
-                    key = (tuple(constant.functions), constant.size)
-                    if inline_copies.setdefault(key, file_path) != file_path:
-                        continue
-                self._unnamed_constants.append(constant)
-                self._charge_ram(component, constant.size)
-
-        self._unnamed_constants.sort(key=lambda c: c.size, reverse=True)
-
-    def _attribute_string_literals(self, output: str, obj_dir: Path) -> None:
-        """Attribute string literals in RAM to the components whose code uses them.
-
-        The linker merges identical literals across objects, so each is counted
-        once, from the bytes it really takes in the ELF's .rodata.
-        """
-        result = run_tool([self.readelf_path, "-x", ".rodata", str(self.elf_path)])
-        if result is None or result.returncode != 0:
-            return
-        rodata = bytes(_parse_hex_dumps(result.stdout).get(".rodata", b""))
-        # Literal -> component -> functions or data using it
-        users: dict[bytes, dict[str, set[str]]] = defaultdict(lambda: defaultdict(set))
-        for file_path, sections in _parse_string_sections(output).items():
-            component = self._source_file_to_component(
-                Path(file_path).relative_to(obj_dir).as_posix()
-            )
-            for text, found in self._scan_object_strings(file_path, sections).items():
-                if text and (kept := found & self._elf_symbol_names):
-                    users[text][component] |= kept
-
-        literals = (
-            StringLiteral(
-                text.decode("utf-8", "backslashreplace"),
-                _ram_string_size(text, rodata, users),
-                by_component,
-            )
-            for text, by_component in users.items()
-        )
-        self._string_literals = sorted(
-            (s for s in literals if s.size), key=lambda s: (-s.size, s.text)
-        )
-        for literal in self._string_literals:
-            # A literal used by several components is not charged to any of them
-            if len(literal.users) == 1:
-                self._charge_ram(next(iter(literal.users)), literal.size)
-
-    def _scan_object_strings(
-        self, file_path: str, sections: dict[str, tuple[str, str | None]]
-    ) -> dict[bytes, set[str]]:
-        """Map each string literal of one object to the functions or data using it.
-
-        Args:
-            file_path: Object file to read
-            sections: String sections by index, with the function each is named after
-        """
-        result = run_tool(
-            [self.readelf_path, "-rW"]
-            + [arg for index in sections for arg in ("-x", index)]
-            + [file_path]
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("readelf failed reading strings of %s", file_path)
-            return {}
-        contents = _parse_hex_dumps(result.stdout)
-        users: dict[bytes, set[str]] = defaultdict(set)
-        shared: set[str] = set()
-        for name, function in sections.values():
-            # A section named after its function holds only that function's literals
-            if function:
-                for text in bytes(contents[name]).split(b"\0")[:-1]:
-                    users[text].add(function)
-            else:
-                shared.add(name)
-
-        relocations = _parse_relocations(result.stdout)
-        # Functions using each unnamed table, for literals reached through a pointer in it
-        table_users: dict[str, set[str]] = defaultdict(set)
-        for section, _, target, _ in relocations:
-            if (
-                target.startswith(".rodata")
-                and not _STRING_SECTION_PATTERN.match(target)
-                and (function := _section_user(section))
-                and _CODE_SECTION_PATTERN.match(section)
-            ):
-                table_users[target].add(function)
-        # Literals in the shared section are found from the pointers that use them
-        refs = [
-            (section, found, offset, target, addend)
-            for section, offset, target, addend in relocations
-            if target in shared
-            and (
-                found := {u} if (u := _section_user(section)) else table_users[section]
-            )
-        ]
-        if not refs:
-            return users
-        result = run_tool(
-            [self.readelf_path]
-            + [arg for name in sorted({r[0] for r in refs}) for arg in ("-x", name)]
-            + [file_path]
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("readelf failed reading string users of %s", file_path)
-            return users
-        referrers = _parse_hex_dumps(result.stdout)
-        for section, found, offset, target, addend in refs:
-            text = _pointed_literal(
-                referrers[section], offset, addend, contents[target]
-            )
-            users[text] |= found
-        return users
-
-    def _scan_object_constants(
-        self,
-        file_path: str,
-        sections: dict[str, _RodataSection],
-        rel_path: str,
-        component: str,
-    ) -> list[UnnamedConstant]:
-        """Return the unnamed constants of one object that the link kept.
-
-        Args:
-            file_path: Object file to read
-            sections: Candidate sections by index
-            rel_path: Object path shown in the report
-            component: Component the object belongs to
-        """
-        result = run_tool(
-            [self.readelf_path, "-rW"]
-            + [arg for index in sections for arg in ("-x", index)]
-            + [file_path]
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("readelf failed reading constants of %s", file_path)
-            return []
-
-        by_name = {section.name: section for section in sections.values()}
-        contents = _parse_hex_dumps(result.stdout)
-        functions: dict[str, set[str]] = defaultdict(set)
-        jump_tables: set[str] = set()
-        # Section -> (offset, string section, addend) of each pointer to a literal
-        pointers: dict[str, list[tuple[int, str, int]]] = defaultdict(list)
-        for section, offset, target, addend in _parse_relocations(result.stdout):
-            if target in by_name:
-                code = _CODE_SECTION_PATTERN.match(section)
-                if code and code.group(1):
-                    functions[target].add(code.group(1))
-            elif section in by_name and by_name[section].is_unnamed(offset):
-                if _CODE_SECTION_PATTERN.match(target):
-                    jump_tables.add(section)
-                elif ".str" in target:
-                    pointers[section].append((offset, target, addend))
-
-        strings = self._read_pointed_strings(file_path, pointers, contents)
-        return [
-            UnnamedConstant(
-                size=section.unnamed_size,
-                source_file=rel_path,
-                component=component,
-                functions=sorted(functions[name]),
-                jump_table=name in jump_tables,
-                data=bytes(
-                    byte
-                    for offset, byte in enumerate(contents[name])
-                    if section.is_unnamed(offset)
-                )[:16],
-                strings=strings.get(name, []),
-            )
-            for name, section in by_name.items()
-            # Dropped by --gc-sections unless a function that uses it was kept
-            if not self._elf_symbol_names.isdisjoint(functions[name])
-        ]
-
-    def _read_pointed_strings(
-        self,
-        file_path: str,
-        pointers: dict[str, list[tuple[int, str, int]]],
-        contents: dict[str, bytearray],
-    ) -> dict[str, list[str]]:
-        """Resolve each constant's pointers to string literals, in offset order."""
-        if not pointers:
-            return {}
-        targets = sorted({t for refs in pointers.values() for _, t, _ in refs})
-        result = run_tool(
-            [self.readelf_path]
-            + [arg for target in targets for arg in ("-x", target)]
-            + [file_path]
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("readelf failed reading strings of %s", file_path)
-            return {}
-        literals = _parse_hex_dumps(result.stdout)
-        return {
-            name: [
-                _pointed_literal(
-                    contents[name], offset, addend, literals[target]
-                ).decode("utf-8", "backslashreplace")
-                for offset, target, addend in sorted(refs)
-            ]
-            for name, refs in pointers.items()
-        }
-
-    def _charge_ram(self, component: str, size: int) -> None:
-        """Charge RAM bytes that have no ELF symbol to a component."""
-        self._add_component_size(component, ".data", size)
-        if (data_section := self.sections.get(".data")) is not None:
-            data_section.symbol_size += size
-
-    def _add_component_size(self, component: str, section: str, size: int) -> None:
-        """Add size to a component, creating it under its own name."""
-        if component not in self.components:
-            self.components[component] = ComponentMemory(component)
-        self.components[component].add_section_size(section, size)
-
     def _analyze_function_calls(self) -> None:
         """Count function call sites by parsing disassembly output.
 

esphome/analyze_memory/cli.py

@@ -5,7 +5,6 @@ from __future__ import annotations
 from collections import defaultdict
 from collections.abc import Callable
 import heapq
-import json
 from operator import itemgetter
 from pathlib import Path
 import sys
@@ -24,7 +23,7 @@ from . import (
 from .toolchain import find_elf_path, find_idedata_path, idedata_candidates
 
 if TYPE_CHECKING:
-    from . import ComponentMemory, StringLiteral
+    from . import ComponentMemory
 
 
 def _format_pstorage_name(name: str) -> str:
@@ -47,8 +46,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
     )
     # Lower threshold for RAM symbols (RAM is more constrained)
     RAM_SYMBOL_SIZE_THRESHOLD: int = 24
-    # String literals listed per component in the RAM strings report
-    STRINGS_PER_COMPONENT: int = 10
     # Number of top symbols to show in the largest symbols report
     TOP_SYMBOLS_LIMIT: int = 30
     # Width for symbol name display in top symbols report
@@ -207,75 +204,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                 f"{i + 1:>2}. {size:>7,} B {section_label:<8} {demangled_display:<{self.COL_TOP_SYMBOL_NAME}} {component}"
             )
 
-    def _add_unnamed_constants_analysis(self, lines: list[str]) -> None:
-        """Add the unnamed constants (ESP8266 .rodata in RAM) section."""
-        self._add_section_header(lines, "Unnamed Constants in RAM (.rodata)")
-        total_size = sum(c.size for c in self._unnamed_constants)
-        lines.append(
-            f"Total: {len(self._unnamed_constants)} constant(s), {total_size:,} B. "
-            "GCC copies these into objects built from constant initializers;"
-        )
-        lines.append(
-            "PROGMEM tables, assigned fields or a user-provided constructor avoid the copy."
-        )
-        lines.append("")
-        for constant in self._unnamed_constants:
-            kind = "switch table" if constant.jump_table else "constant"
-            lines.append(
-                f"{constant.size:>6,} B {kind:<12} {constant.component} ({constant.source_file})"
-            )
-            lines.extend(
-                f"{'':>9} used by {self._demangle_symbol(function)}"
-                for function in constant.functions
-            )
-            if constant.strings:
-                shown = ", ".join(f'"{text[:40]}"' for text in constant.strings[:4])
-                more = ", ..." if len(constant.strings) > 4 else ""
-                lines.append(f"{'':>9} points to {shown}{more}")
-            elif constant.data and not constant.jump_table:
-                more = " ..." if constant.size > len(constant.data) else ""
-                lines.append(f"{'':>9} bytes: {constant.data.hex(' ')}{more}")
-        lines.append("")
-
-    def _add_string_literals_analysis(self, lines: list[str]) -> None:
-        """Add the string literals in RAM (ESP8266 .rodata) section, by component."""
-        self._add_section_header(lines, "String Literals in RAM (.rodata)")
-        total_size = sum(s.size for s in self._string_literals)
-        lines.append(
-            f"Total: {len(self._string_literals)} string(s), {total_size:,} B. "
-            "LOG_STR, ESPHOME_F or a PROGMEM table keeps a literal in flash."
-        )
-        lines.append(
-            "A literal used by several components is listed under each and charged to none."
-        )
-        lines.append("")
-        by_component: dict[str, list[StringLiteral]] = defaultdict(list)
-        for literal in self._string_literals:
-            for component in literal.users:
-                by_component[component].append(literal)
-        totals = {c: sum(s.size for s in ls) for c, ls in by_component.items()}
-        for component, literals in sorted(
-            by_component.items(), key=lambda x: (-totals[x[0]], x[0])
-        ):
-            comp_total = totals[component]
-            lines.append(f"{component} ({comp_total:,} B, {len(literals)} strings):")
-            for literal in literals[: self.STRINGS_PER_COMPONENT]:
-                text = json.dumps(literal.text, ensure_ascii=False)
-                if len(text) > 50:
-                    text = f'{text[:47]}..."'
-                users = sorted(
-                    self._demangle_symbol(u) for u in literal.users[component]
-                )
-                used_by = users[0][:60] + (
-                    f" (+{len(users) - 1})" if len(users) > 1 else ""
-                )
-                lines.append(f"  {literal.size:>5,} B {text:<50} {used_by}")
-            if len(literals) > self.STRINGS_PER_COMPONENT:
-                lines.append(
-                    f"  ... and {len(literals) - self.STRINGS_PER_COMPONENT} more"
-                )
-        lines.append("")
-
     def _add_cswtch_analysis(self, lines: list[str]) -> None:
         """Add CSWTCH (GCC switch table lookup) analysis section."""
         self._add_section_header(lines, "CSWTCH Analysis (GCC Switch Table Lookups)")
@@ -466,12 +394,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             f"{total_flash:>{self.COL_TOTAL_FLASH - 2},} B | {total_ram:>{self.COL_TOTAL_RAM - 2},} B"
         )
 
-        if self.rodata_in_ram:
-            lines.append("")
-            lines.append(
-                "ESP8266 keeps .rodata in RAM, so constants are counted in RAM (data)."
-            )
-
         # Show unattributed RAM (SDK/framework overhead)
         unattributed_bss, unattributed_data, unattributed_total = (
             self.get_unattributed_ram()
@@ -735,11 +657,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                     lines.append(f"    ... and {len(large_ram_syms) - 10} more")
             lines.append("")
 
-        if self._unnamed_constants:
-            self._add_unnamed_constants_analysis(lines)
-        if self._string_literals:
-            self._add_string_literals_analysis(lines)
-
         # CSWTCH (GCC switch table) analysis
         if self._cswtch_symbols:
             self._add_cswtch_analysis(lines)
@@ -821,6 +738,7 @@ def main():
     build_dir = sys.argv[1]
 
     # Load build directory
+    import json
 
     from esphome.platformio.toolchain import IDEData
 

esphome/components/cc1101/__init__.py

@@ -1,5 +1,3 @@
-from typing import Any
-
 from esphome import automation, pins
 from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
@@ -15,7 +13,6 @@ from esphome.const import (
     CONF_VALUE,
     CONF_WAIT_TIME,
 )
-from esphome.types import ConfigType
 
 CODEOWNERS = ["@lygris", "@gabest11"]
 DEPENDENCIES = ["spi"]
@@ -25,8 +22,6 @@ MULTI_CONF = True
 ns = cg.esphome_ns.namespace("cc1101")
 CC1101Component = ns.class_("CC1101Component", cg.Component, spi.SPIDevice)
 CC1101Listener = ns.class_("CC1101Listener")
-PACKET_TYPE = cg.std_vector.template(cg.uint8)
-RX_FIFO_SIZE = 64
 
 # Config keys
 CONF_RX_ATTENUATION = "rx_attenuation"
@@ -246,34 +241,20 @@ CONFIG_MAP = {
     cv.Optional(CONF_BS_POST_KI): cv.enum(BS_POST_KI, upper=False),
     cv.Optional(CONF_BS_POST_KP): cv.enum(BS_POST_KP, upper=False),
     cv.Optional(CONF_PACKET_MODE, default=False): cv.boolean,
+    cv.Optional(CONF_PACKET_LENGTH): cv.uint8_t,
     cv.Optional(CONF_CRC_ENABLE, default=False): cv.boolean,
     cv.Optional(CONF_WHITENING, default=False): cv.boolean,
 }
 
 
-def _is_long_packet(packet_length: Any) -> bool:
-    """A packet_length that does not fit the RX FIFO, or is a lambda."""
-    return cg.is_template(packet_length) or (packet_length or 0) > RX_FIFO_SIZE
-
-
-def _validate_packet_mode(config: ConfigType) -> ConfigType:
-    packet_mode = config.get(CONF_PACKET_MODE, False)
-    packet_length = config.get(CONF_PACKET_LENGTH)
-    if packet_mode:
+def _validate_packet_mode(config):
+    if config.get(CONF_PACKET_MODE, False):
         if CONF_GDO0_PIN not in config:
             raise cv.Invalid("gdo0_pin is required when packet_mode is enabled")
-        if packet_length is None:
+        if CONF_PACKET_LENGTH not in config:
             raise cv.Invalid("packet_length is required when packet_mode is enabled")
-    elif cg.is_template(packet_length):
-        raise cv.Invalid("packet_mode is required when packet_length is a lambda")
-    if (
-        packet_mode
-        and _is_long_packet(packet_length)
-        and config.get(CONF_CRC_ENABLE, False)
-    ):
-        raise cv.Invalid(
-            "crc_enable is not supported with packet_length > 64 or a lambda"
-        )
+        if config[CONF_PACKET_LENGTH] > 64:
+            raise cv.Invalid("packet_length must be <= 64 (FIFO size)")
     return config
 
 
@@ -282,9 +263,6 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): cv.declare_id(CC1101Component),
             cv.Optional(CONF_GDO0_PIN): pins.internal_gpio_input_pin_schema,
-            cv.Optional(CONF_PACKET_LENGTH): cv.templatable(
-                cv.int_range(min=0, max=1024)
-            ),
             cv.Optional(CONF_ON_PACKET): automation.validate_automation(single=True),
         }
     )
@@ -304,24 +282,11 @@ async def to_code(config):
             cg.add(getattr(var, f"set_{key}")(config[key]))
 
     await cg.add_pin(var.set_gdo0_pin, config.get(CONF_GDO0_PIN))
-    if (packet_length := config.get(CONF_PACKET_LENGTH)) is not None:
-        # packet_mode can also be switched on at run time, so this does not check it
-        if _is_long_packet(packet_length):
-            cg.add_define("USE_CC1101_LONG_PACKET")
-        if cg.is_template(packet_length):
-            lambda_ = await cg.process_lambda(
-                packet_length,
-                [(PACKET_TYPE.operator("ref").operator("const"), "x")],
-                return_type=cg.int32,
-            )
-            cg.add(var.set_packet_length_lambda(lambda_))
-        else:
-            cg.add(var.set_packet_length(packet_length))
     if CONF_ON_PACKET in config:
         await automation.build_automation(
             var.get_packet_trigger(),
             [
-                (PACKET_TYPE, "x"),
+                (cg.std_vector.template(cg.uint8), "x"),
                 (cg.float_, "freq_offset"),
                 (cg.float_, "rssi"),
                 (cg.uint8, "lqi"),

esphome/components/cc1101/cc1101.cpp

@@ -1,10 +1,8 @@
 #include "cc1101.h"
 #include "cc1101pa.h"
-#include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 #include "esphome/core/progmem.h"
-#include <algorithm>
 #include <cmath>
 #include <cstring>
 
@@ -16,15 +14,9 @@ namespace esphome::cc1101 {
 
 ESPHOME_LOG_TAG(TAG, "cc1101");
 static constexpr size_t TX_FIFO_SIZE = 64;
-static constexpr size_t RX_FIFO_SIZE = 64;
-// RX FIFO threshold for FIFO_THR = 7 in long packet mode
-static constexpr uint8_t RX_FIFO_THRESHOLD = 32;
 // The crystal takes about 150 us to start after CSn goes low
 static constexpr uint32_t WAKEUP_DELAY_US = 200;
 
-static float freq_offset_hz(uint8_t freqest) { return static_cast<int8_t>(freqest) * (XTAL_FREQUENCY / (1 << 14)); }
-static float rssi_dbm(int8_t rssi) { return (rssi * RSSI_STEP) - RSSI_OFFSET; }
-
 // MDMCFG2 MOD_FORMAT values
 PROGMEM_STRING_TABLE(ModulationStrings, "2-FSK", "GFSK", "UNUSED", "ASK/OOK", "4-FSK", "UNUSED", "UNUSED", "MSK");
 
@@ -122,6 +114,8 @@ CC1101Component::CC1101Component() {
   memset(this->pa_table_, 0, sizeof(this->pa_table_));
 }
 
+void IRAM_ATTR CC1101Component::gpio_intr(CC1101Component *arg) { arg->enable_loop_soon_any_context(); }
+
 void CC1101Component::setup() {
   this->spi_setup();
 
@@ -199,220 +193,7 @@ void CC1101Component::call_listeners_(const std::vector<uint8_t> &packet, float
   this->packet_trigger_.trigger(packet, freq_offset, rssi, lqi);
 }
 
-float CC1101Component::symbol_rate_() const {
-  return (((256.0f + this->state_.DRATE_M) * (1 << this->state_.DRATE_E)) / (1 << 28)) * XTAL_FREQUENCY;
-}
-
-#ifdef USE_CC1101_LONG_PACKET
-bool CC1101Component::is_long_packet_mode_() const {
-  return this->packet_mode_ && (this->packet_length_ > RX_FIFO_SIZE || this->packet_length_func_ != nullptr);
-}
-
-void CC1101Component::arm_length_(uint16_t length) {
-  // Over 255 bytes or unknown starts in infinite mode (datasheet section 15.2.2). PKTLEN must not be 0, so a
-  // multiple of 256 stays in infinite mode and ends on the MCU byte count alone.
-  this->packet_expected_length_ = length;
-  this->state_.LENGTH_CONFIG = static_cast<uint8_t>(length > 0 && length < 256 ? LengthConfig::LENGTH_CONFIG_FIXED
-                                                                               : LengthConfig::LENGTH_CONFIG_INFINITE);
-  this->state_.PKTLEN = length % 256 == 0 ? 0xFF : static_cast<uint8_t>(length % 256);
-}
-
-void CC1101Component::reset_long_packet_rx_() {
-  this->packet_.clear();
-  this->packet_last_byte_ms_ = 0;
-  this->high_freq_.stop();
-  this->arm_length_(this->packet_length_func_ != nullptr ? 0 : this->packet_length_);
-}
-
-void CC1101Component::restart_long_packet_rx_() {
-  this->enter_idle_();
-  this->enter_rx_();
-  this->disable_loop();
-}
-
-void CC1101Component::maybe_switch_long_packet_to_fixed_() {
-  const uint16_t expected = this->packet_expected_length_;
-  if (this->state_.LENGTH_CONFIG == static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_FIXED) || expected == 0 ||
-      expected % 256 == 0) {
-    return;
-  }
-  const uint16_t received = this->packet_.size();
-  if (expected - received >= 256) {
-    return;
-  }
-  // PKTLEN keeps the (length % 256) set at the start, as in TI Design Note DN500 section 2.3
-  this->state_.LENGTH_CONFIG = static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_FIXED);
-  this->write_(Register::PKTCTRL0);
-  ESP_LOGVV(TAG, "Switched long packet RX to fixed mode: received=%u expected=%u pktlen=%u", received, expected,
-            this->state_.PKTLEN);
-}
-
-void CC1101Component::finish_long_packet_() {
-  this->packet_.resize(this->packet_expected_length_);
-  this->read_(Register::FREQEST);
-  this->read_(Register::LQI);
-  const float freq_offset = freq_offset_hz(this->state_.FREQEST);
-  const uint8_t lqi = this->state_.LQI & STATUS_LQI_MASK;
-  // No CRC check: crc_enable is rejected for long packets, CRC_OK is only set after the last payload byte.
-  // Restart RX before dispatching so a callback may change settings; swapping back keeps the reserved capacity
-  // unless a callback reserved a larger buffer.
-  std::vector<uint8_t> packet;
-  packet.swap(this->packet_);
-  this->restart_long_packet_rx_();
-  this->call_listeners_(packet, freq_offset, rssi_dbm(this->long_packet_rssi_), lqi);
-  if (packet.capacity() > this->packet_.capacity()) {
-    packet.clear();
-    this->packet_.swap(packet);
-  }
-}
-
-void CC1101Component::handle_long_packet_(uint8_t rx_bytes) {
-  // Leave one byte in the FIFO unless it holds the rest of the packet (datasheet section 20)
-  uint16_t to_read = rx_bytes > 0 ? rx_bytes - 1 : 0;
-  if (this->packet_expected_length_ > 0) {
-    const uint16_t remaining = this->packet_expected_length_ - this->packet_.size();
-    if (remaining <= rx_bytes) {
-      to_read = remaining;
-    }
-  }
-
-  if (to_read == 0) {
-    if (this->packet_.empty()) {
-      return;
-    }
-    // Discard a packet when no byte arrived for the air time of PACKET_IDLE_TIMEOUT_BYTES
-    const uint32_t timeout_ms =
-        std::max(static_cast<uint32_t>(std::ceil((8.0f * PACKET_IDLE_TIMEOUT_BYTES * 1000.0f) / this->symbol_rate_())),
-                 PACKET_IDLE_TIMEOUT_MIN_MS);
-    if (App.get_loop_component_start_time() - this->packet_last_byte_ms_ > timeout_ms) {
-      ESP_LOGW(TAG, "Packet receive timeout, discarding packet: received=%u expected=%u fifo=%u",
-               static_cast<uint16_t>(this->packet_.size()), this->packet_expected_length_, rx_bytes);
-      this->restart_long_packet_rx_();
-    }
-    return;
-  }
-
-  const size_t old_size = this->packet_.size();
-  if (old_size == 0) {
-    // The RSSI register follows the live signal; sample it while the packet is still on air
-    this->read_(Register::RSSI);
-    this->long_packet_rssi_ = this->state_.RSSI;
-    // The FIFO threshold signal does not fire for the bytes after the last threshold crossing; poll until done
-    this->high_freq_.start();
-  }
-  // Read through an aligned buffer: for an unaligned target the ESP32 SPI driver allocates a bounce buffer
-  alignas(4) uint8_t staged[RX_FIFO_SIZE];
-  this->read_(Register::FIFO, staged, to_read);
-  this->packet_.resize(old_size + to_read);
-  std::memcpy(this->packet_.data() + old_size, staged, to_read);
-  this->packet_last_byte_ms_ = App.get_loop_component_start_time();
-  ESP_LOGVV(TAG, "Drained RX FIFO: read=%u received=%u expected=%u fifo=%u", to_read,
-            static_cast<uint16_t>(this->packet_.size()), this->packet_expected_length_, rx_bytes);
-
-  if (this->packet_expected_length_ == 0 && this->packet_length_func_ != nullptr) {
-    const int32_t length = this->packet_length_func_(this->packet_);
-    if (length < 0) {
-      ESP_LOGVV(TAG, "Packet length lambda discarded packet: received=%u", static_cast<uint16_t>(this->packet_.size()));
-      this->restart_long_packet_rx_();
-      return;
-    }
-    if (length > MAX_PACKET_LENGTH) {
-      ESP_LOGW(TAG, "Packet length exceeds maximum, discarding packet: length=%" PRId32 " max=%u", length,
-               MAX_PACKET_LENGTH);
-      this->restart_long_packet_rx_();
-      return;
-    }
-    if (length > 0) {
-      this->arm_length_(static_cast<uint16_t>(length));
-      // A packet shorter than the first FIFO drain is already complete; finish_long_packet_() truncates it
-      if (this->packet_expected_length_ <= this->packet_.size()) {
-        this->finish_long_packet_();
-        return;
-      }
-      this->write_(Register::PKTLEN);
-      this->write_(Register::PKTCTRL0);
-      ESP_LOGVV(TAG, "Resolved packet length: received=%u expected=%u pktlen=%u",
-                static_cast<uint16_t>(this->packet_.size()), this->packet_expected_length_, this->state_.PKTLEN);
-    }
-  }
-
-  // Only reachable while the length is still unknown; a known length caps every read
-  if (this->packet_.size() > MAX_PACKET_LENGTH) {
-    ESP_LOGW(TAG, "Packet length exceeds maximum, discarding packet: length=%u max=%u",
-             static_cast<uint16_t>(this->packet_.size()), MAX_PACKET_LENGTH);
-    this->restart_long_packet_rx_();
-    return;
-  }
-
-  this->maybe_switch_long_packet_to_fixed_();
-
-  if (this->packet_expected_length_ > 0 && this->packet_.size() >= this->packet_expected_length_) {
-    this->finish_long_packet_();
-  }
-}
-
-void CC1101Component::loop_long_packet_() {
-  if (this->sleeping_ || this->state_.PKT_FORMAT != static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_FIFO) ||
-      this->gdo0_pin_ == nullptr) {
-    this->high_freq_.stop();
-    this->disable_loop();
-    return;
-  }
-  // While GDO0 (RX FIFO threshold) is high, the FIFO holds at least RX_FIFO_THRESHOLD bytes, so drain without
-  // reading RXBYTES. At high data rates RXBYTES changes between two reads, so waiting for two reads that agree
-  // and retrying on the next loop pass lets the FIFO overflow. MARCSTATE does not change during RX.
-  for (uint8_t i = 0; i < RX_FIFO_SIZE / RX_FIFO_THRESHOLD + 2 && this->gdo0_pin_->digital_read(); i++) {
-    this->read_(Register::MARCSTATE);
-    if (static_cast<State>(this->state_.MARC_STATE) == State::RXFIFO_OVERFLOW) {
-      ESP_LOGW(TAG, "RX FIFO overflow, discarding packet: received=%u expected=%u",
-               static_cast<uint16_t>(this->packet_.size()), this->packet_expected_length_);
-      this->restart_long_packet_rx_();
-      return;
-    }
-    this->handle_long_packet_(RX_FIFO_THRESHOLD);
-    if (this->packet_.empty()) {
-      return;  // finished or discarded
-    }
-  }
-  // Below the threshold the next crossing raises GDO0 again, and after the packet the count no longer changes,
-  // so retrying on the next loop pass is safe here. RXBYTES can be misread while bytes arrive (TI SWRZ020), so
-  // only trust two consecutive reads that agree.
-  this->read_(Register::RXBYTES);
-  uint8_t rx_bytes = this->state_.RXBYTES;
-  bool stable = false;
-  for (uint8_t retries = RXBYTES_STABLE_RETRIES; retries > 0 && !stable; retries--) {
-    const uint8_t previous = rx_bytes;
-    this->read_(Register::RXBYTES);
-    rx_bytes = this->state_.RXBYTES;
-    stable = rx_bytes == previous;
-  }
-  if (!stable) {
-    return;
-  }
-  rx_bytes = this->state_.NUM_RXBYTES;
-  // More than the FIFO holds can only be a misread; the staged drain buffer is FIFO sized
-  if (this->state_.RXFIFO_OVERFLOW || rx_bytes > RX_FIFO_SIZE) {
-    ESP_LOGW(TAG, "RX FIFO overflow, discarding packet: received=%u expected=%u fifo=%u",
-             static_cast<uint16_t>(this->packet_.size()), this->packet_expected_length_, rx_bytes);
-    this->restart_long_packet_rx_();
-    return;
-  }
-  if (rx_bytes == 0 && this->packet_.empty() && !this->gdo0_pin_->digital_read()) {
-    this->disable_loop();
-    return;
-  }
-  this->handle_long_packet_(rx_bytes);
-}
-#endif
-
 void CC1101Component::loop() {
-#ifdef USE_CC1101_LONG_PACKET
-  if (this->is_long_packet_mode_()) {
-    this->loop_long_packet_();
-    return;
-  }
-#endif
-
   this->disable_loop();
   if (this->sleeping_ || this->state_.PKT_FORMAT != static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_FIFO) ||
       this->gdo0_pin_ == nullptr || !this->gdo0_pin_->digital_read()) {
@@ -440,7 +221,7 @@ void CC1101Component::loop() {
     payload_length = this->state_.PKTLEN;
     expected_rx = payload_length;
   }
-  if (payload_length == 0 || payload_length > RX_FIFO_SIZE || rx_bytes != expected_rx) {
+  if (payload_length == 0 || payload_length > 64 || rx_bytes != expected_rx) {
     ESP_LOGW(TAG, "Invalid packet: rx_bytes %u, payload_length %u", rx_bytes, payload_length);
     this->enter_idle_();
     this->strobe_(Command::FRX);
@@ -454,8 +235,8 @@ void CC1101Component::loop() {
   this->read_(Register::FREQEST);
   this->read_(Register::RSSI);
   this->read_(Register::LQI);
-  float freq_offset = freq_offset_hz(this->state_.FREQEST);
-  float rssi = rssi_dbm(this->state_.RSSI);
+  float freq_offset = static_cast<int8_t>(this->state_.FREQEST) * (XTAL_FREQUENCY / (1 << 14));
+  float rssi = (this->state_.RSSI * RSSI_STEP) - RSSI_OFFSET;
   bool crc_ok = (this->state_.LQI & STATUS_CRC_OK_MASK) != 0;
   uint8_t lqi = this->state_.LQI & STATUS_LQI_MASK;
   if (this->state_.CRC_EN == 0 || crc_ok) {
@@ -475,7 +256,7 @@ void CC1101Component::loop() {
 void CC1101Component::dump_config() {
   int32_t freq = static_cast<int32_t>(this->state_.FREQ2 << 16 | this->state_.FREQ1 << 8 | this->state_.FREQ0) *
                  XTAL_FREQUENCY / (1 << 16);
-  float symbol_rate = this->symbol_rate_();
+  float symbol_rate = (((256.0f + this->state_.DRATE_M) * (1 << this->state_.DRATE_E)) / (1 << 28)) * XTAL_FREQUENCY;
   float bw = XTAL_FREQUENCY / (8.0f * (4 + this->state_.CHANBW_M) * (1 << this->state_.CHANBW_E));
   ESP_LOGCONFIG(TAG,
                 "CC1101:\n"
@@ -490,20 +271,6 @@ void CC1101Component::dump_config() {
                 LOG_STR_ARG(ModulationStrings::get_log_str(this->state_.MOD_FORMAT & 0x07, 0)), symbol_rate, bw,
                 this->output_power_effective_);
   LOG_PIN("  CS Pin: ", this->cs_);
-  LOG_PIN("  GDO0 Pin: ", this->gdo0_pin_);
-
-  if (this->packet_mode_) {
-#ifdef USE_CC1101_LONG_PACKET
-    if (this->packet_length_func_ != nullptr) {
-      ESP_LOGCONFIG(TAG, "  Packet Length: lambda");
-    } else
-#endif
-        if (this->packet_length_ == 0) {
-      ESP_LOGCONFIG(TAG, "  Packet Length: variable");
-    } else {
-      ESP_LOGCONFIG(TAG, "  Packet Length: %u", this->packet_length_);
-    }
-  }
 }
 
 void CC1101Component::begin_tx() {
@@ -549,14 +316,6 @@ void CC1101Component::reset() {
 void CC1101Component::set_idle() {
   ESP_LOGV(TAG, "Setting IDLE state");
   this->enter_idle_();
-#ifdef USE_CC1101_LONG_PACKET
-  if (this->is_long_packet_mode_()) {
-    // Drop a partial packet so a pending loop pass cannot finish it and re-enter RX
-    this->strobe_(Command::FRX);
-    this->reset_long_packet_rx_();
-    this->disable_loop();
-  }
-#endif
 }
 
 void CC1101Component::power_down() {
@@ -634,18 +393,7 @@ void CC1101Component::enter_idle_() {
   }
 }
 
-bool CC1101Component::enter_rx_() {
-#ifdef USE_CC1101_LONG_PACKET
-  if (this->is_long_packet_mode_()) {
-    // Every RX entry starts a fresh long packet; callers leave the chip in IDLE, where SFRX is allowed
-    this->strobe_(Command::FRX);
-    this->reset_long_packet_rx_();
-    this->write_(Register::PKTLEN);
-    this->write_(Register::PKTCTRL0);
-  }
-#endif
-  return this->enter_calibrated_(State::RX, Command::RX);
-}
+bool CC1101Component::enter_rx_() { return this->enter_calibrated_(State::RX, Command::RX); }
 
 bool CC1101Component::enter_tx_() { return this->enter_calibrated_(State::TX, Command::TX); }
 
@@ -708,22 +456,12 @@ void CC1101Component::read_(Register reg, uint8_t *buffer, size_t length) {
 
 CC1101Error CC1101Component::transmit_packet(const uint8_t *data, size_t len) {
   if (this->state_.PKT_FORMAT != static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_FIFO)) {
-    ESP_LOGW(TAG, "Cannot transmit packet: packet mode is not FIFO");
     return CC1101Error::PARAMS;
   }
-#ifdef USE_CC1101_LONG_PACKET
-  // Long packet TX needs chunked FIFO refills and is not implemented
-  if (this->is_long_packet_mode_()) {
-    ESP_LOGW(TAG, "Cannot transmit packet: long packet mode is RX-only");
-    return CC1101Error::PARAMS;
-  }
-#endif
   const bool variable = this->state_.LENGTH_CONFIG == static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_VARIABLE);
   // In variable length mode the FIFO also holds the length byte
   if (len + (variable ? 1 : 0) > TX_FIFO_SIZE) {
-    ESP_LOGW(TAG,
-             "Cannot transmit packet: long packet TX is not implemented, payload length %u exceeds TX FIFO limit %u",
-             static_cast<unsigned>(len), static_cast<unsigned>(TX_FIFO_SIZE));
+    ESP_LOGE(TAG, "Packet of %u bytes does not fit the TX FIFO", static_cast<unsigned>(len));
     return CC1101Error::PARAMS;
   }
 
@@ -1096,60 +834,19 @@ void CC1101Component::set_bs_post_kp(BsPostKp value) {
   }
 }
 
-void CC1101Component::configure_packet_mode_() {
-#ifdef USE_CC1101_LONG_PACKET
-  // Ends a long reception in progress, also when switching to a short packet mode
-  this->high_freq_.stop();
-  this->packet_.clear();
-#endif
-  if (!this->packet_mode_) {
-    this->state_.PKT_FORMAT = static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_ASYNC_SERIAL);
-    this->state_.GDO0_CFG = 0x0D;
-  } else {
-    this->state_.PKT_FORMAT = static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_FIFO);
-    this->state_.APPEND_STATUS = 0;
-#ifdef USE_CC1101_LONG_PACKET
-    if (this->is_long_packet_mode_()) {
-      // Threshold-only signal, reasserts after each partial FIFO drain
-      this->state_.GDO0_CFG = 0x00;
-      this->state_.FIFO_THR = 7;
-      // Reserve once so receiving never allocates; a lambda may read one FIFO drain past MAX_PACKET_LENGTH
-      this->packet_.reserve(this->packet_length_func_ != nullptr ? MAX_PACKET_LENGTH + RX_FIFO_SIZE
-                                                                 : this->packet_length_);
-      this->reset_long_packet_rx_();
-    } else
-#endif
-    {
-      this->state_.GDO0_CFG = 0x01;
-      this->state_.FIFO_THR = 15;
-      if (this->packet_length_ == 0) {
-        this->state_.LENGTH_CONFIG = static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_VARIABLE);
-      } else {
-        this->state_.LENGTH_CONFIG = static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_FIXED);
-        this->state_.PKTLEN = static_cast<uint8_t>(this->packet_length_);
-      }
-    }
-  }
-
-  if (this->initialized_) {
-    this->write_(Register::PKTCTRL0);
-    this->write_(Register::PKTCTRL1);
-    this->write_(Register::PKTLEN);
-    this->write_(Register::IOCFG0);
-    this->write_(Register::FIFOTHR);
-  }
-}
-
 void CC1101Component::set_packet_mode(bool value) {
-  this->packet_mode_ = value;
-#ifdef USE_CC1101_LONG_PACKET
-  // Long packet RX must drop the FIFO along with a partial packet, so go through IDLE and restart RX
-  if (this->initialized_ && this->is_long_packet_mode_()) {
-    this->reconfigure_packet_length_();
-  } else
-#endif
-  {
-    this->configure_packet_mode_();
+  this->state_.PKT_FORMAT =
+      static_cast<uint8_t>(value ? PacketFormat::PACKET_FORMAT_FIFO : PacketFormat::PACKET_FORMAT_ASYNC_SERIAL);
+  if (value) {
+    // Configure GDO0 for FIFO status (asserts on RX FIFO threshold or end of packet)
+    this->state_.GDO0_CFG = 0x01;
+    // Set max RX FIFO threshold to ensure we only trigger on end-of-packet
+    this->state_.FIFO_THR = 15;
+    // Don't append status bytes to FIFO - we read from registers instead
+    this->state_.APPEND_STATUS = 0;
+  } else {
+    // Configure GDO0 for serial data (async serial mode)
+    this->state_.GDO0_CFG = 0x0D;
   }
   if (this->initialized_) {
     if (this->gdo0_pin_ != nullptr) {
@@ -1159,41 +856,24 @@ void CC1101Component::set_packet_mode(bool value) {
         this->gdo0_pin_->detach_interrupt();
       }
     }
+    this->write_(Register::PKTCTRL0);
+    this->write_(Register::PKTCTRL1);
+    this->write_(Register::IOCFG0);
+    this->write_(Register::FIFOTHR);
   }
 }
 
-void CC1101Component::set_packet_length(uint16_t value) {
-#ifndef USE_CC1101_LONG_PACKET
-  if (value > RX_FIFO_SIZE) {
-    ESP_LOGW(TAG, "Packet length %u needs a configured packet_length above %u", value,
-             static_cast<unsigned>(RX_FIFO_SIZE));
-    return;
+void CC1101Component::set_packet_length(uint8_t value) {
+  if (value == 0) {
+    this->state_.LENGTH_CONFIG = static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_VARIABLE);
+  } else {
+    this->state_.LENGTH_CONFIG = static_cast<uint8_t>(LengthConfig::LENGTH_CONFIG_FIXED);
+    this->state_.PKTLEN = value;
   }
-#else
-  this->packet_length_func_ = nullptr;
-#endif
-  this->packet_length_ = value;
-  this->reconfigure_packet_length_();
-}
-
-#ifdef USE_CC1101_LONG_PACKET
-void CC1101Component::set_packet_length_lambda(packet_length_func_t func) {
-  this->packet_length_func_ = func;
-  this->reconfigure_packet_length_();
-}
-#endif
-
-void CC1101Component::reconfigure_packet_length_() {
-  // While asleep the writes wait for wake_up() and the radio stays asleep, like set_frequency()
-  if (!this->initialized_ || this->sleeping_) {
-    this->configure_packet_mode_();
-    return;
+  if (this->initialized_) {
+    this->write_(Register::PKTCTRL0);
+    this->write_(Register::PKTLEN);
   }
-  // Like the other runtime setters: go through IDLE, and flush bytes of a reception in progress
-  this->enter_idle_();
-  this->strobe_(Command::FRX);
-  this->configure_packet_mode_();
-  this->enter_rx_();
 }
 
 void CC1101Component::set_crc_enable(bool value) {

esphome/components/cc1101/cc1101.h

@@ -2,7 +2,6 @@
 
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
-#include "esphome/core/helpers.h"
 #include "esphome/components/spi/spi.h"
 #include "esphome/core/automation.h"
 #include "cc1101defs.h"
@@ -11,7 +10,6 @@
 namespace esphome::cc1101 {
 
 enum class CC1101Error { NONE = 0, TIMEOUT, PARAMS, CRC_ERROR, FIFO_OVERFLOW, PLL_LOCK };
-using packet_length_func_t = int32_t (*)(const std::vector<uint8_t> &);
 
 class CC1101Listener {
  public:
@@ -88,10 +86,7 @@ class CC1101Component final : public Component,
 
   // Packet mode settings
   void set_packet_mode(bool value);
-  void set_packet_length(uint16_t value);
-#ifdef USE_CC1101_LONG_PACKET
-  void set_packet_length_lambda(packet_length_func_t func);
-#endif
+  void set_packet_length(uint8_t value);
   void set_crc_enable(bool value);
   void set_whitening(bool value);
 
@@ -106,7 +101,6 @@ class CC1101Component final : public Component,
  protected:
   uint16_t chip_id_{0};
   bool initialized_{false};
-  bool packet_mode_{false};
   bool sleeping_{false};
   bool registers_dirty_{false};
 
@@ -118,38 +112,13 @@ class CC1101Component final : public Component,
 
   // GDO pin for packet reception
   InternalGPIOPin *gdo0_pin_{nullptr};
-  // Inline like App.get_loop_component_start_time(): on RP2040 an out-of-line IRAM_ATTR function in the same
-  // file as that inline one fails with a section type conflict
-  static void IRAM_ATTR gpio_intr(CC1101Component *arg) { arg->enable_loop_soon_any_context(); }
+  static void gpio_intr(CC1101Component *arg);
 
   // Packet handling
   void call_listeners_(const std::vector<uint8_t> &packet, float freq_offset, float rssi, uint8_t lqi);
-  void configure_packet_mode_();
-  void reconfigure_packet_length_();
-  float symbol_rate_() const;
-#ifdef USE_CC1101_LONG_PACKET
-  bool is_long_packet_mode_() const;
-  void arm_length_(uint16_t length);
-  void reset_long_packet_rx_();
-  void restart_long_packet_rx_();
-  void loop_long_packet_();
-  void handle_long_packet_(uint8_t rx_bytes);
-  void finish_long_packet_();
-  void maybe_switch_long_packet_to_fixed_();
-#endif
   Trigger<std::vector<uint8_t>, float, float, uint8_t> packet_trigger_;
   std::vector<uint8_t> packet_;
   std::vector<CC1101Listener *> listeners_;
-#ifdef USE_CC1101_LONG_PACKET
-  packet_length_func_t packet_length_func_{nullptr};
-  uint32_t packet_last_byte_ms_{0};
-#endif
-  uint16_t packet_length_{0};
-#ifdef USE_CC1101_LONG_PACKET
-  uint16_t packet_expected_length_{0};
-  int8_t long_packet_rssi_{0};  // raw RSSI register
-  HighFrequencyLoopRequester high_freq_;
-#endif
 
   // Low-level Helpers
   uint8_t strobe_(Command cmd);

esphome/components/cc1101/cc1101defs.h

@@ -15,11 +15,6 @@ static constexpr uint8_t PLL_LOCK_RETRIES = 3;
 static constexpr uint8_t STATUS_CRC_OK_MASK = 0x80;
 static constexpr uint8_t STATUS_LQI_MASK = 0x7F;
 
-static constexpr uint16_t MAX_PACKET_LENGTH = 1024;
-static constexpr uint16_t PACKET_IDLE_TIMEOUT_BYTES = 64;
-static constexpr uint32_t PACKET_IDLE_TIMEOUT_MIN_MS = 5;
-static constexpr uint8_t RXBYTES_STABLE_RETRIES = 4;
-
 static constexpr uint8_t BUS_BURST = 0x40;
 static constexpr uint8_t BUS_READ = 0x80;
 static constexpr uint8_t BUS_WRITE = 0x00;

esphome/components/cst226/touchscreen/__init__.py

@@ -1,15 +1,36 @@
-from esphome.components import cstxxx
+from esphome import pins
+import esphome.codegen as cg
+from esphome.components import i2c, touchscreen
+import esphome.config_validation as cv
+from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
 from esphome.types import ConfigType
 
 from .. import cst226_ns
 
-AUTO_LOAD = ["cstxxx"]
-
-CST226Touchscreen = cst226_ns.class_("CST226Touchscreen", cstxxx.CSTTouchscreen)
+CST226Touchscreen = cst226_ns.class_(
+    "CST226Touchscreen",
+    touchscreen.Touchscreen,
+    i2c.I2CDevice,
+)
 
 CST226ButtonListener = cst226_ns.class_("CST226ButtonListener")
-CONFIG_SCHEMA = cstxxx.cst_touchscreen_schema(CST226Touchscreen, 0x5A)
+CONFIG_SCHEMA = (
+    touchscreen.touchscreen_schema("100ms")
+    .extend(
+        {
+            cv.GenerateID(): cv.declare_id(CST226Touchscreen),
+            cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
+            cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
+        }
+    )
+    .extend(i2c.i2c_device_schema(0x5A))
+)
 
 
 async def to_code(config: ConfigType) -> None:
-    await cstxxx.new_cst_touchscreen(config)
+    var = cg.new_Pvariable(config[CONF_ID])
+    await touchscreen.register_touchscreen(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    await cg.add_pin(var.set_interrupt_pin, config.get(CONF_INTERRUPT_PIN))
+    await cg.add_pin(var.set_reset_pin, config.get(CONF_RESET_PIN))

esphome/components/cst226/touchscreen/cst226_touchscreen.cpp

@@ -14,10 +14,6 @@ void CST226Touchscreen::setup() {
 }
 
 void CST226Touchscreen::update_touches() {
-  if (!this->setup_complete_) {
-    this->skip_update_ = true;
-    return;
-  }
   uint8_t data[28];
   if (!this->status_comm_result(this->read_bytes(CST226_REG_STATUS, data, sizeof data))) {
     this->skip_update_ = true;
@@ -28,39 +24,56 @@ void CST226Touchscreen::update_touches() {
     return;
   }
   this->update_button_state_(false);
-  if (data[cstxxx::SYNC_IDX] != cstxxx::SYNC_BYTE || data[0] == cstxxx::SYNC_BYTE ||
-      data[cstxxx::FINGER_COUNT_IDX] == 0x80) {
+  if (data[6] != 0xAB || data[0] == 0xAB || data[5] == 0x80) {
     this->skip_update_ = true;
     return;
   }
-  uint8_t num_of_touches = data[cstxxx::FINGER_COUNT_IDX] & 0x7F;
+  uint8_t num_of_touches = data[5] & 0x7F;
   if (num_of_touches == 0 || num_of_touches > 5) {
-    this->write_byte(CST226_REG_STATUS, cstxxx::SYNC_BYTE);
+    this->write_byte(0, 0xAB);
     return;
   }
 
+  size_t index = 0;
   for (uint8_t i = 0; i != num_of_touches; i++) {
-    auto touch = cstxxx::decode_touch(data, i);
-    this->add_raw_touch_position_(touch.id, touch.x, touch.y, touch.z);
-    ESP_LOGV(TAG, "Read touch %d: %d/%d", touch.id, touch.x, touch.y);
+    uint8_t id = data[index] >> 4;
+    int16_t x = (data[index + 1] << 4) | ((data[index + 3] >> 4) & 0x0F);
+    int16_t y = (data[index + 2] << 4) | (data[index + 3] & 0x0F);
+    int16_t z = data[index + 4];
+    this->add_raw_touch_position_(id, x, y, z);
+    ESP_LOGV(TAG, "Read touch %d: %d/%d", id, x, y);
+    index += 5;
+    if (i == 0)
+      index += 2;
   }
 }
 
+bool CST226Touchscreen::read16_(uint16_t addr, uint8_t *data, size_t len) {
+  if (this->read_register16(addr, data, len) != i2c::ERROR_OK) {
+    ESP_LOGE(TAG, "Read data from 0x%04X failed", addr);
+    this->mark_failed();
+    return false;
+  }
+  return true;
+}
 void CST226Touchscreen::continue_setup_() {
-  this->setup_interrupt_pin_(gpio::INTERRUPT_FALLING_EDGE);
-  if (!this->enter_command_mode_())
+  uint8_t buffer[8];
+  if (this->interrupt_pin_ != nullptr) {
+    this->interrupt_pin_->setup();
+    this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
+  }
+  if (!this->setup_check(this->write_byte_reg16(0xD1, 0xD1), LOG_STR("Write byte to 0xD1 failed")))
     return;
   delay(10);
-  if (!this->check_firmware_())
-    return;
-  if (!this->setup_check(this->read_words_(cstxxx::REG_CHIP_INFO, this->project_id_, this->chip_id_),
-                         LOG_STR("Failed to read chip ID")))
-    return;
+  if (this->read16_(0xD204, buffer, 4)) {
+    uint16_t chip_id = buffer[2] + (buffer[3] << 8);
+    uint16_t project_id = buffer[0] + (buffer[1] << 8);
+    ESP_LOGCONFIG(TAG, "Chip ID %X, project ID %x", chip_id, project_id);
+  }
   if (this->x_raw_max_ == 0 || this->y_raw_max_ == 0) {
-    uint16_t x_max, y_max;
-    if (this->read_words_(cstxxx::REG_RESOLUTION, x_max, y_max)) {
-      this->x_raw_max_ = x_max;
-      this->y_raw_max_ = y_max;
+    if (this->read16_(0xD1F8, buffer, 4)) {
+      this->x_raw_max_ = buffer[0] + (buffer[1] << 8);
+      this->y_raw_max_ = buffer[2] + (buffer[3] << 8);
       if (this->swap_x_y_)
         std::swap(this->x_raw_max_, this->y_raw_max_);
     } else {
@@ -68,10 +81,8 @@ void CST226Touchscreen::continue_setup_() {
       this->y_raw_max_ = this->display_->get_native_height();
     }
   }
-  this->status_comm_check(this->write_register16(cstxxx::REG_NORMAL_MODE, nullptr, 0) == i2c::ERROR_OK);
   this->setup_complete_ = true;
 }
-
 void CST226Touchscreen::update_button_state_(bool state) {
   if (this->button_touched_ == state)
     return;
@@ -85,10 +96,6 @@ void CST226Touchscreen::dump_config() {
   LOG_I2C_DEVICE(this);
   LOG_PIN("  Interrupt Pin: ", this->interrupt_pin_);
   LOG_PIN("  Reset Pin: ", this->reset_pin_);
-  ESP_LOGCONFIG(TAG,
-                "  Chip ID: 0x%04X, Project ID: 0x%04X\n"
-                "  X/Y raw max: %d/%d",
-                this->chip_id_, this->project_id_, this->x_raw_max_, this->y_raw_max_);
 }
 
 }  // namespace esphome::cst226

esphome/components/cst226/touchscreen/cst226_touchscreen.h

@@ -1,12 +1,11 @@
 #pragma once
 
-#include "esphome/components/cstxxx/cstxxx.h"
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/touchscreen/touchscreen.h"
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
 
-#include <vector>
-
 namespace esphome::cst226 {
 
 static const uint8_t CST226_REG_STATUS = 0x00;
@@ -16,23 +15,28 @@ class CST226ButtonListener {
   virtual void update_button(bool state) = 0;
 };
 
-class CST226Touchscreen final : public cstxxx::CSTTouchscreen {
+class CST226Touchscreen final : public touchscreen::Touchscreen, public i2c::I2CDevice {
  public:
   void setup() override;
   void update_touches() override;
   void dump_config() override;
 
+  void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
+  void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
   bool can_proceed() override { return this->setup_complete_ || this->is_failed(); }
   void register_button_listener(CST226ButtonListener *listener) { this->button_listeners_.push_back(listener); }
 
  protected:
+  bool read16_(uint16_t addr, uint8_t *data, size_t len);
   void continue_setup_();
   void update_button_state_(bool state);
 
-  bool button_touched_{};
-  uint16_t chip_id_{};
-  uint16_t project_id_{};
+  InternalGPIOPin *interrupt_pin_{};
+  GPIOPin *reset_pin_{};
+  uint8_t chip_id_{};
+  bool setup_complete_{};
   std::vector<CST226ButtonListener *> button_listeners_;
+  bool button_touched_{};
 };
 
 }  // namespace esphome::cst226

esphome/components/cst328/touchscreen/__init__.py

@@ -1,15 +1,37 @@
-from esphome.components import cstxxx
+from esphome import pins
+import esphome.codegen as cg
+from esphome.components import i2c, touchscreen
+import esphome.config_validation as cv
+from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
 from esphome.types import ConfigType
 
 from .. import cst328_ns
 
-AUTO_LOAD = ["cstxxx"]
-
-CST328Touchscreen = cst328_ns.class_("CST328Touchscreen", cstxxx.CSTTouchscreen)
+CST328Touchscreen = cst328_ns.class_(
+    "CST328Touchscreen",
+    touchscreen.Touchscreen,
+    i2c.I2CDevice,
+)
 
 CST328ButtonListener = cst328_ns.class_("CST328ButtonListener")
-CONFIG_SCHEMA = cstxxx.cst_touchscreen_schema(CST328Touchscreen, 0x1A)
+
+CONFIG_SCHEMA = (
+    touchscreen.touchscreen_schema("100ms")
+    .extend(
+        {
+            cv.GenerateID(): cv.declare_id(CST328Touchscreen),
+            cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
+            cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
+        }
+    )
+    .extend(i2c.i2c_device_schema(0x1A))
+)
 
 
 async def to_code(config: ConfigType) -> None:
-    await cstxxx.new_cst_touchscreen(config)
+    var = cg.new_Pvariable(config[CONF_ID])
+    await touchscreen.register_touchscreen(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    await cg.add_pin(var.set_interrupt_pin, config.get(CONF_INTERRUPT_PIN))
+    await cg.add_pin(var.set_reset_pin, config.get(CONF_RESET_PIN))

esphome/components/cst328/touchscreen/cst328_touchscreen.cpp

@@ -5,8 +5,31 @@ namespace esphome::cst328 {
 
 ESPHOME_LOG_TAG(TAG, "cst328.touchscreen");
 
-static constexpr uint32_t CST328_BEFORE_RESET_TIMEOUT = 50;  // 50 ms from datasheet
-static constexpr uint32_t CST328_TRANSITION_TIMEOUT = 300;   // 200 ms from datasheet, but typically much less
+static const uint32_t CST328_BEFORE_RESET_TIMEOUT = 50;  // 50 ms from datasheet
+static const uint32_t CST328_TRANSITION_TIMEOUT = 300;   // 200 ms from datasheet, but typically much less
+static const uint16_t CST328_FW_CRC = 0xCACA;            // Expected firmware CRC value
+static const uint8_t CST328_SYNC_BYTE = 0xAB;            // Sync byte used in communication
+
+static const uint8_t ZERO_BYTE = 0;
+
+#define I2C_WARN_ON_ERROR(x, log_tag, format, ...) \
+  do { \
+    i2c::ErrorCode err_rc_ = (x); \
+    if (err_rc_ != i2c::ERROR_OK) { \
+      ESP_LOGW(log_tag, "%s(%d): [error %d] " format, __FUNCTION__, __LINE__, err_rc_, ##__VA_ARGS__); \
+      this->status_set_warning(format); \
+    } \
+  } while (0)
+
+#define I2C_FAIL_ON_ERROR(x, log_tag, format, ...) \
+  do { \
+    i2c::ErrorCode err_rc_ = (x); \
+    if (err_rc_ != i2c::ERROR_OK) { \
+      ESP_LOGE(log_tag, "%s(%d): [error %d] " format, __FUNCTION__, __LINE__, err_rc_, ##__VA_ARGS__); \
+      this->mark_failed(); \
+      return; \
+    } \
+  } while (0)
 
 void CST328Touchscreen::setup() {
   ESP_LOGCONFIG(TAG, "Setting up CST328 Touchscreen...");
@@ -27,36 +50,50 @@ void CST328Touchscreen::reset_device_() {
 void CST328Touchscreen::continue_setup_() {
   ESP_LOGV(TAG, "Continuing CST328 setup...");
 
-  if (!this->enter_command_mode_() || !this->check_firmware_())
-    return;
-  if (!this->setup_check(this->read_words_(cstxxx::REG_CHIP_INFO, this->project_id_, this->chip_id_),
-                         LOG_STR("Failed to read chip and project ID")))
+  uint8_t data_byte{0};
+  uint8_t buf[24]{};
+
+  I2C_FAIL_ON_ERROR(this->write_register16(CST_WM_DEBUG_INFO, buf, 0), TAG, "Failed to enter debug/info mode");
+  I2C_FAIL_ON_ERROR(this->read_register16(CST_REG_FW_CRC_AND_BOOT_TIME, buf, 4), TAG,
+                    "Failed to read FW CRC and boot time");
+
+  uint16_t fw_crc = buf[2] + (buf[3] << 8);
+  if (fw_crc != CST328_FW_CRC) {
+    ESP_LOGE(TAG, "Error: Firmware CRC mismatch, expected 0x%04X but got 0x%04X", CST328_FW_CRC, fw_crc);
+    this->mark_failed();
     return;
+  }
+
+  I2C_FAIL_ON_ERROR(this->read_register16(CST_REG_CHIP_TYPE_AND_PROJECT_ID, buf, 4), TAG,
+                    "Failed to read chip and project ID");
+
+  this->chip_id_ = buf[2] + (buf[3] << 8);
+  this->project_id_ = buf[0] + (buf[1] << 8);
   ESP_LOGD(TAG, "Chip ID %X, project ID %X", this->chip_id_, this->project_id_);
-  uint16_t fw_version;
-  if (!this->setup_check(this->read_words_(cstxxx::REG_FW_VERSION, this->fw_build_, fw_version),
-                         LOG_STR("Failed to read FW version")))
-    return;
-  this->fw_ver_major_ = fw_version >> 8;
-  this->fw_ver_minor_ = fw_version & 0xFF;
+  I2C_FAIL_ON_ERROR(this->read_register16(CST_REG_FW_REVISION, buf, 4), TAG, "Failed to read FW version");
+
+  this->fw_ver_major_ = buf[3];
+  this->fw_ver_minor_ = buf[2];
+  this->fw_build_ = buf[0] + (buf[1] << 8);
   ESP_LOGV(TAG, "FW version %d.%d.%d", this->fw_ver_major_, this->fw_ver_minor_, this->fw_build_);
 
-  uint16_t x_max, y_max;
-  if (this->read_words_(cstxxx::REG_RESOLUTION, x_max, y_max)) {
-    this->x_raw_max_ = x_max;
-    this->y_raw_max_ = y_max;
+  if (i2c::ERROR_OK == this->read_register16(CST_REG_X_Y_RESOLUTION, buf, 4)) {
+    this->x_raw_max_ = buf[0] + (buf[1] << 8);
+    this->y_raw_max_ = buf[2] + (buf[3] << 8);
   } else {
     this->x_raw_max_ = this->display_->get_native_width();
     this->y_raw_max_ = this->display_->get_native_height();
   }
 
-  uint8_t sync;
-  bool ok = this->write_register16(cstxxx::REG_NORMAL_MODE, nullptr, 0) == i2c::ERROR_OK;
-  ok &= this->read_byte_reg16(cstxxx::REG_TOUCH_DATA, &sync);
-  ok &= this->write_byte_reg16(cstxxx::REG_TOUCH_DATA, cstxxx::SYNC_BYTE);
-  this->status_comm_check(ok);
+  I2C_WARN_ON_ERROR(this->write_register16(CST_WM_NORMAL, buf, 0), TAG, "Failed to enter normal mode");
+  I2C_WARN_ON_ERROR(this->read_register16(CST_REG_TOUCH_INFORMATION, &data_byte, 1), TAG, "Failed to read sync");
+  I2C_WARN_ON_ERROR(this->write_register16(CST_REG_TOUCH_INFORMATION, &CST328_SYNC_BYTE, 1), TAG,
+                    "Failed to write sync");
 
-  this->setup_interrupt_pin_(gpio::INTERRUPT_FALLING_EDGE);
+  if (this->interrupt_pin_ != nullptr) {
+    this->interrupt_pin_->setup();
+    this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
+  }
 
   this->setup_complete_ = true;
   ESP_LOGV(TAG, "CST328 setup complete");
@@ -105,15 +142,21 @@ void CST328Touchscreen::update_touches() {
   } else {
     this->update_button_state_(true);
 
+    uint8_t data_idx = 0;
     for (uint8_t i = 0; i < touch_cnt; i++) {
-      auto touch = cstxxx::decode_touch(touch_data, i);
-      this->add_raw_touch_position_(touch.id, touch.x, touch.y, touch.z);
+      uint8_t id = touch_data[data_idx] >> 4;
+      int16_t x = (touch_data[data_idx + 1] << 4) | ((touch_data[data_idx + 3] >> 4) & 0x0F);
+      int16_t y = (touch_data[data_idx + 2] << 4) | (touch_data[data_idx + 3] & 0x0F);
+      int16_t z = touch_data[data_idx + 4];
+
+      this->add_raw_touch_position_(id, x, y, z);
+      data_idx += (i == 0) ? 7 : 5;
     }
   }
 
   bool cleanup_error = false;
-  cleanup_error |= !this->write_byte_reg16(cstxxx::REG_FINGER_COUNT, 0);
-  cleanup_error |= !this->write_byte_reg16(cstxxx::REG_TOUCH_DATA, cstxxx::SYNC_BYTE);
+  cleanup_error |= !this->write_byte_reg16(CST_REG_TOUCH_FINGER_NUMBER, ZERO_BYTE);
+  cleanup_error |= !this->write_byte_reg16(CST_REG_TOUCH_INFORMATION, CST328_SYNC_BYTE);
 
   if (cleanup_error) {
     ESP_LOGW(TAG, "Failed to clean up touch registers");

esphome/components/cst328/touchscreen/cst328_touchscreen.h

@@ -1,45 +1,61 @@
 #pragma once
 
-#include "esphome/components/cstxxx/cstxxx.h"
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/touchscreen/touchscreen.h"
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 
-#include <vector>
-
 namespace esphome::cst328 {
 
-static constexpr uint8_t CST328_TOUCH_MAX_POINTS = 5;
-static constexpr uint8_t CST328_TOUCH_DATA_SIZE = cstxxx::report_size(CST328_TOUCH_MAX_POINTS);
+static const uint8_t CST328_TOUCH_MAX_POINTS = 5;
+static const uint8_t CST328_TOUCH_DATA_SIZE = CST328_TOUCH_MAX_POINTS * 5 + 2;
 
-static constexpr uint16_t CST_REG_TOUCH_INFORMATION = cstxxx::REG_TOUCH_DATA;
-static constexpr uint16_t CST_REG_FINGER_COUNT_IDX = cstxxx::FINGER_COUNT_IDX;
-static constexpr uint16_t CST_REG_X_Y_RESOLUTION = cstxxx::REG_RESOLUTION;
-static constexpr uint16_t CST_REG_FW_CRC_AND_BOOT_TIME = cstxxx::REG_FW_CHECK_CODE;
+static const uint16_t CST_REG_TOUCH_INFORMATION = 0xD000;
+static const uint16_t CST_REG_TOUCH_FINGER_NUMBER = 0xD005;
+
+static const uint16_t CST_REG_FINGER_COUNT_IDX = CST_REG_TOUCH_FINGER_NUMBER - CST_REG_TOUCH_INFORMATION;
+
+static const uint16_t CST_REG_X_Y_RESOLUTION = 0xD1F8;
+static const uint16_t CST_REG_FW_CRC_AND_BOOT_TIME = 0xD1FC;
+static const uint16_t CST_REG_CHIP_TYPE_AND_PROJECT_ID = 0xD204;
+static const uint16_t CST_REG_FW_REVISION = 0xD208;
+
+static const uint16_t CST_WM_DEBUG_INFO = 0xD101;
+static const uint16_t CST_WM_NORMAL = 0xD109;
 
 class CST328ButtonListener {
  public:
   virtual void update_button(bool state) = 0;
 };
 
-class CST328Touchscreen : public cstxxx::CSTTouchscreen {
+class CST328Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice {
  public:
   void setup() override;
   void register_button_listener(CST328ButtonListener *listener) { this->button_listeners_.push_back(listener); }
   void dump_config() override;
 
+  void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
+  void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
+
  protected:
   void update_touches() override;
   void reset_device_();
   void continue_setup_();
   void update_button_state_(bool state);
 
-  bool button_touched_{};
-  uint8_t fw_ver_major_{};
-  uint8_t fw_ver_minor_{};
+  InternalGPIOPin *interrupt_pin_{};
+  GPIOPin *reset_pin_{};
+
   std::vector<CST328ButtonListener *> button_listeners_;
+  bool button_touched_{};
+
   uint16_t chip_id_{};
   uint16_t project_id_{};
+  uint8_t fw_ver_major_{};
+  uint8_t fw_ver_minor_{};
   uint16_t fw_build_{};
+
+  bool setup_complete_{};
 };
 
 }  // namespace esphome::cst328

esphome/components/cst9220/touchscreen/__init__.py

@@ -1,14 +1,35 @@
-from esphome.components import cstxxx
+from esphome import pins
+import esphome.codegen as cg
+from esphome.components import i2c, touchscreen
+import esphome.config_validation as cv
+from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
 from esphome.types import ConfigType
 
 from .. import cst9220_ns
 
-AUTO_LOAD = ["cstxxx"]
+CST9220Touchscreen = cst9220_ns.class_(
+    "CST9220Touchscreen",
+    touchscreen.Touchscreen,
+    i2c.I2CDevice,
+)
 
-CST9220Touchscreen = cst9220_ns.class_("CST9220Touchscreen", cstxxx.CSTTouchscreen)
-
-CONFIG_SCHEMA = cstxxx.cst_touchscreen_schema(CST9220Touchscreen, 0x5A)
+CONFIG_SCHEMA = (
+    touchscreen.touchscreen_schema("100ms")
+    .extend(
+        {
+            cv.GenerateID(): cv.declare_id(CST9220Touchscreen),
+            cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
+            cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
+        }
+    )
+    .extend(i2c.i2c_device_schema(0x5A))
+)
 
 
 async def to_code(config: ConfigType) -> None:
-    await cstxxx.new_cst_touchscreen(config)
+    var = cg.new_Pvariable(config[CONF_ID])
+    await touchscreen.register_touchscreen(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    await cg.add_pin(var.set_interrupt_pin, config.get(CONF_INTERRUPT_PIN))
+    await cg.add_pin(var.set_reset_pin, config.get(CONF_RESET_PIN))

esphome/components/cst9220/touchscreen/cst9220_touchscreen.cpp

@@ -1,4 +1,7 @@
 #include "cst9220_touchscreen.h"
+#include "esphome/core/helpers.h"
+
+#include <cinttypes>
 
 namespace esphome::cst9220 {
 
@@ -13,29 +16,55 @@ void CST9220Touchscreen::setup() {
 }
 
 void CST9220Touchscreen::continue_setup_() {
-  this->setup_interrupt_pin_(gpio::INTERRUPT_FALLING_EDGE);
+  uint8_t buffer[4];
 
-  if (!this->enter_command_mode_())
-    return;
-  delay(10);
-  if (!this->check_firmware_())
-    return;
-
-  // Read the panel resolution unless the user supplied calibration values.
-  uint16_t x_max, y_max;
-  if (this->read_words_(cstxxx::REG_RESOLUTION, x_max, y_max)) {
-    if (this->x_raw_max_ == this->x_raw_min_)
-      this->x_raw_max_ = x_max;
-    if (this->y_raw_max_ == this->y_raw_min_)
-      this->y_raw_max_ = y_max;
+  if (this->interrupt_pin_ != nullptr) {
+    this->interrupt_pin_->setup();
+    this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
   }
 
-  if (!this->setup_check(this->read_words_(cstxxx::REG_CHIP_INFO, this->project_id_, this->chip_id_),
-                         LOG_STR("Failed to read chip ID")))
+  // Enter command mode so the configuration registers can be read.
+  if (this->write_register16(REG_CMD_MODE, buffer, 0) != i2c::ERROR_OK) {
+    this->status_set_error(LOG_STR("Failed to enter command mode"));
+    this->mark_failed();
     return;
+  }
+  delay(10);
+
+  // The firmware check code confirms that valid firmware is loaded.
+  if (this->read_register16(REG_CHECKCODE, buffer, 4) != i2c::ERROR_OK) {
+    this->status_set_error(LOG_STR("Failed to read check code"));
+    this->mark_failed();
+    return;
+  }
+  uint32_t checkcode = encode_uint32(buffer[3], buffer[2], buffer[1], buffer[0]);
+  if ((checkcode & 0xFFFF0000) != 0xCACA0000) {
+    ESP_LOGE(TAG, "Invalid firmware check code: 0x%08" PRIX32, checkcode);
+    this->status_set_error(LOG_STR("Invalid firmware check code"));
+    this->mark_failed();
+    return;
+  }
+
+  // Read the panel resolution unless the user supplied calibration values.
+  if (this->read_register16(REG_RESOLUTION, buffer, 4) == i2c::ERROR_OK) {
+    if (this->x_raw_max_ == this->x_raw_min_)
+      this->x_raw_max_ = encode_value_le<uint16_t>(buffer);
+    if (this->y_raw_max_ == this->y_raw_min_)
+      this->y_raw_max_ = encode_value_le<uint16_t>(&buffer[2]);
+  }
+
+  // Read the chip type and project id and validate the controller.
+  if (this->read_register16(REG_CHIP_INFO, buffer, 4) != i2c::ERROR_OK) {
+    this->status_set_error(LOG_STR("Failed to read chip ID"));
+    this->mark_failed();
+    return;
+  }
+  this->chip_id_ = encode_value_le<uint16_t>(&buffer[2]);
+  this->project_id_ = encode_value_le<uint16_t>(buffer);
   if (this->chip_id_ != CST9220_CHIP_ID && this->chip_id_ != CST9217_CHIP_ID) {
     ESP_LOGE(TAG, "Unknown chip ID: 0x%04X", this->chip_id_);
-    this->mark_failed(LOG_STR("Unknown chip ID"));
+    this->status_set_error(LOG_STR("Unknown chip ID"));
+    this->mark_failed();
     return;
   }
 
@@ -55,7 +84,7 @@ void CST9220Touchscreen::update_touches() {
   // Only an actual I2C failure should skip the update; a successful read with no
   // touches is a real "all fingers lifted" state that must flow through so the
   // base class can generate the release event.
-  if (!this->status_comm_result(this->read_register16(cstxxx::REG_TOUCH_DATA, data, sizeof(data)) == i2c::ERROR_OK)) {
+  if (!this->status_comm_result(this->read_register16(REG_TOUCH_DATA, data, sizeof(data)) == i2c::ERROR_OK)) {
     this->skip_update_ = true;
     return;
   }
@@ -63,23 +92,30 @@ void CST9220Touchscreen::update_touches() {
   // A valid report carries the marker at offset 6. Writing an acknowledge back makes the controller return
   // invalid frames during a long press, so none is written. An invalid frame keeps the previous points; while
   // a finger is down, read again shortly so a lost release frame does not leave the touch held.
-  if (data[cstxxx::SYNC_IDX] != cstxxx::SYNC_BYTE) {
+  if (data[6] != TOUCH_ACK) {
     this->skip_update_ = true;
     if (!this->touches_.empty())
       this->set_timeout(REREAD_TIMEOUT_ID, REREAD_DELAY_MS, [this] { this->store_.touched = true; });
     return;
   }
 
-  uint8_t num_touches = data[cstxxx::FINGER_COUNT_IDX] & 0x7F;
+  uint8_t num_touches = data[5] & 0x7F;
   if (num_touches > CST9220_MAX_TOUCHES)
     num_touches = CST9220_MAX_TOUCHES;
 
   for (uint8_t i = 0; i < num_touches; i++) {
-    auto touch = cstxxx::decode_touch(data, i);
-    if (touch.event != TOUCH_EVENT_DOWN)
+    // The first point starts at offset 0; subsequent points are offset by the
+    // two status bytes that follow it.
+    const uint8_t *p = data + i * 5 + (i == 0 ? 0 : 2);
+    uint8_t id = p[0] >> 4;
+    uint8_t event = p[0] & 0x0F;
+    if (event != TOUCH_EVENT_DOWN)
       continue;
-    ESP_LOGV(TAG, "Read touch %d: %d/%d", touch.id, touch.x, touch.y);
-    this->add_raw_touch_position_(touch.id, touch.x, touch.y);
+    // p[3] is shared: high nibble holds the X LSBs, low nibble the Y LSBs.
+    uint16_t x = (p[1] << 4) | (p[3] >> 4);
+    uint16_t y = (p[2] << 4) | (p[3] & 0x0F);
+    ESP_LOGV(TAG, "Read touch %d: %d/%d", id, x, y);
+    this->add_raw_touch_position_(id, x, y);
   }
 }
 

esphome/components/cst9220/touchscreen/cst9220_touchscreen.h

@@ -1,6 +1,7 @@
 #pragma once
 
-#include "esphome/components/cstxxx/cstxxx.h"
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/touchscreen/touchscreen.h"
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
@@ -9,26 +10,41 @@ namespace esphome::cst9220 {
 
 ESPHOME_LOG_TAG(TAG, "cst9220.touchscreen");
 
-static constexpr uint8_t TOUCH_EVENT_DOWN = 0x06;
+// The CST92xx family uses 16-bit (big-endian) register addresses.
+static const uint16_t REG_TOUCH_DATA = 0xD000;  // touch report
+static const uint16_t REG_CMD_MODE = 0xD101;    // enter command mode
+static const uint16_t REG_CHECKCODE = 0xD1FC;   // firmware check code
+static const uint16_t REG_RESOLUTION = 0xD1F8;  // panel resolution
+static const uint16_t REG_CHIP_INFO = 0xD204;   // chip type + project id
 
-static constexpr uint16_t CST9220_CHIP_ID = 0x9220;
-static constexpr uint16_t CST9217_CHIP_ID = 0x9217;
+static const uint8_t TOUCH_ACK = 0xAB;
+static const uint8_t TOUCH_EVENT_DOWN = 0x06;
 
-static constexpr uint8_t CST9220_MAX_TOUCHES = 5;
+static const uint16_t CST9220_CHIP_ID = 0x9220;
+static const uint16_t CST9217_CHIP_ID = 0x9217;
+
+// Maximum simultaneous touch points reported by the family.
+static const uint8_t CST9220_MAX_TOUCHES = 5;
 // Report layout: 5 bytes per touch point plus 5 bytes of status/ack overhead.
-static constexpr size_t CST9220_DATA_LENGTH = CST9220_MAX_TOUCHES * 5 + 5;
+static const size_t CST9220_DATA_LENGTH = CST9220_MAX_TOUCHES * 5 + 5;
 
-class CST9220Touchscreen : public cstxxx::CSTTouchscreen {
+class CST9220Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
 
+  void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
+  void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
+
  protected:
   void update_touches() override;
   void continue_setup_();
 
+  InternalGPIOPin *interrupt_pin_{};
+  GPIOPin *reset_pin_{};
   uint16_t chip_id_{};
   uint16_t project_id_{};
+  bool setup_complete_{};
 };
 
 }  // namespace esphome::cst9220

esphome/components/cstxxx/__init__.py

@@ -1,42 +0,0 @@
-from esphome import pins
-import esphome.codegen as cg
-from esphome.components import i2c, touchscreen
-import esphome.config_validation as cv
-from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
-from esphome.cpp_generator import MockObj, MockObjClass
-from esphome.types import ConfigType
-
-CODEOWNERS = ["@clydebarrow", "@latonita"]
-DEPENDENCIES = ["i2c", "touchscreen"]
-DOMAIN = "cstxxx"
-
-cstxxx_ns = cg.esphome_ns.namespace("cstxxx")
-CSTTouchscreen = cstxxx_ns.class_(
-    "CSTTouchscreen", touchscreen.Touchscreen, i2c.I2CDevice
-)
-
-
-def cst_touchscreen_schema(touchscreen_class: MockObjClass, address: int) -> cv.Schema:
-    """Return the touchscreen schema of a Hynitron driver."""
-    return (
-        touchscreen.touchscreen_schema("100ms")
-        .extend(
-            {
-                cv.GenerateID(): cv.declare_id(touchscreen_class),
-                cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
-                cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
-            }
-        )
-        .extend(i2c.i2c_device_schema(address))
-    )
-
-
-async def new_cst_touchscreen(config: ConfigType) -> MockObj:
-    """Create a Hynitron touchscreen and set its pins."""
-    var = cg.new_Pvariable(config[CONF_ID])
-    await touchscreen.register_touchscreen(var, config)
-    await i2c.register_i2c_device(var, config)
-
-    await cg.add_pin(var.set_interrupt_pin, config.get(CONF_INTERRUPT_PIN))
-    await cg.add_pin(var.set_reset_pin, config.get(CONF_RESET_PIN))
-    return var

esphome/components/cstxxx/cstxxx.cpp

@@ -1,13 +0,0 @@
-#include "cstxxx.h"
-#include "esphome/core/log.h"
-
-namespace esphome::cstxxx {
-
-ESPHOME_LOG_TAG(TAG, "cstxxx");
-
-void CSTTouchscreen::fail_check_code_(uint16_t check_code) {
-  ESP_LOGE(TAG, "Firmware check code 0x%04X", check_code);
-  this->mark_failed(LOG_STR("Invalid firmware check code"));
-}
-
-}  // namespace esphome::cstxxx

esphome/components/cstxxx/cstxxx.h

@@ -1,92 +0,0 @@
-#pragma once
-
-#include <cstddef>
-#include <cstdint>
-
-#include "esphome/components/i2c/i2c.h"
-#include "esphome/components/touchscreen/touchscreen.h"
-#include "esphome/core/gpio.h"
-#include "esphome/core/hal.h"
-#include "esphome/core/helpers.h"
-#include "esphome/core/log.h"
-
-namespace esphome::cstxxx {
-
-static constexpr uint16_t REG_TOUCH_DATA = 0xD000;
-static constexpr uint16_t REG_FINGER_COUNT = 0xD005;
-static constexpr uint16_t REG_COMMAND_MODE = 0xD101;
-static constexpr uint16_t REG_NORMAL_MODE = 0xD109;
-static constexpr uint16_t REG_RESOLUTION = 0xD1F8;
-static constexpr uint16_t REG_FW_CHECK_CODE = 0xD1FC;
-static constexpr uint16_t REG_CHIP_INFO = 0xD204;
-static constexpr uint16_t REG_FW_VERSION = 0xD208;
-
-static constexpr uint8_t FINGER_COUNT_IDX = REG_FINGER_COUNT - REG_TOUCH_DATA;
-static constexpr uint8_t SYNC_IDX = FINGER_COUNT_IDX + 1;
-static constexpr uint8_t SYNC_BYTE = 0xAB;
-static constexpr uint16_t FW_CHECK_CODE = 0xCACA;
-
-/// Bytes of a touch report holding `points` records; two status bytes follow the first record.
-constexpr size_t report_size(uint8_t points) { return points * 5 + 2; }
-
-struct TouchRecord {
-  uint8_t id;
-  uint8_t event;
-  uint16_t x;
-  uint16_t y;
-  uint8_t z;
-};
-
-/// Decodes record `index` of a touch report.
-inline TouchRecord decode_touch(const uint8_t *report, uint8_t index) {
-  const uint8_t *r = report + index * 5 + (index == 0 ? 0 : 2);
-  return {static_cast<uint8_t>(r[0] >> 4), static_cast<uint8_t>(r[0] & 0x0F),
-          static_cast<uint16_t>(r[1] << 4 | r[3] >> 4), static_cast<uint16_t>(r[2] << 4 | (r[3] & 0x0F)), r[4]};
-}
-
-class CSTTouchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice {
- public:
-  void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
-  void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
-
- protected:
-  /// Sets up the interrupt pin, if configured, to fire on `type`.
-  void setup_interrupt_pin_(gpio::InterruptType type) {
-    if (this->interrupt_pin_ == nullptr)
-      return;
-    this->interrupt_pin_->setup();
-    this->attach_interrupt_(this->interrupt_pin_, type);
-  }
-  /// Reads two little-endian words starting at `reg`.
-  bool ESPHOME_ALWAYS_INLINE read_words_(uint16_t reg, uint16_t &low, uint16_t &high) {
-    uint16_t words[2];
-    if (this->read_register16(reg, reinterpret_cast<uint8_t *>(words), sizeof(words)) != i2c::ERROR_OK)
-      return false;
-    low = convert_little_endian(words[0]);
-    high = convert_little_endian(words[1]);
-    return true;
-  }
-  /// Enters command mode, marking the component failed if the write fails.
-  bool enter_command_mode_() {
-    return this->setup_check(this->write_register16(REG_COMMAND_MODE, nullptr, 0) == i2c::ERROR_OK,
-                             LOG_STR("Failed to enter command mode"));
-  }
-  /// Checks the firmware check code, marking the component failed if it is unreadable or wrong.
-  bool check_firmware_() {
-    uint16_t boot_time, check_code;
-    if (!this->setup_check(this->read_words_(REG_FW_CHECK_CODE, boot_time, check_code)))
-      return false;
-    if (check_code == FW_CHECK_CODE)
-      return true;
-    this->fail_check_code_(check_code);
-    return false;
-  }
-  /// Logs a wrong firmware check code and marks the component failed.
-  void fail_check_code_(uint16_t check_code);
-
-  InternalGPIOPin *interrupt_pin_{};
-  GPIOPin *reset_pin_{};
-  bool setup_complete_{};
-};
-
-}  // namespace esphome::cstxxx

esphome/components/dfrobot_sen0609/dfrobot_sen0609.cpp

@@ -3,6 +3,7 @@
 #include "esphome/core/application.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
+#include "esphome/core/parse_float.h"
 #include "esphome/core/progmem.h"
 
 #include <cmath>
@@ -327,8 +328,8 @@ void DFRobotSEN0609Component::parse_response_(const char *args) {
   this->response_count_ = 0;
   while (this->response_count_ < MAX_RESPONSE_VALUES) {
     char *end;
-    const float value = strtof(args, &end);
-    // strtof also takes "nan" and "inf", which no setting can hold
+    const float value = str_to_float(args, &end);
+    // str_to_float also takes "nan" and "inf", which no setting can hold
     if (end == args || !std::isfinite(value))
       break;
     this->response_[this->response_count_++] = value;

esphome/components/ethernet/ethernet_component.h

@@ -7,8 +7,6 @@
 #include "esphome/core/automation.h"
 #include "esphome/components/network/ip_address.h"
 
-#include <atomic>
-
 #ifdef USE_ETHERNET
 
 #ifdef USE_ESP32
@@ -368,9 +366,6 @@ class EthernetComponent final : public Component {
 
 #ifdef USE_ETHERNET_IP_STATE_LISTENERS
   StaticVector<EthernetIPStateListener *, ESPHOME_ETHERNET_IP_STATE_LISTENERS> ip_state_listeners_;
-#ifdef USE_ESP32
-  std::atomic<uint8_t> ip_state_pending_{0};
-#endif
 #endif
 
 #ifdef USE_ETHERNET_CONNECT_TRIGGER

esphome/components/ethernet/ethernet_component_esp32.cpp

@@ -129,14 +129,6 @@ void EthernetComponent::log_error_and_mark_failed_(esp_err_t err, const char *me
 void EthernetComponent::loop() {
   const uint32_t now = App.get_loop_component_start_time();
 
-#ifdef USE_ETHERNET_IP_STATE_LISTENERS
-  // The IP events arrive on the event task; the listeners publish states, so notify them here
-  if (this->ip_state_pending_.load(std::memory_order_acquire) != 0) {
-    this->ip_state_pending_.store(0, std::memory_order_relaxed);
-    this->notify_ip_state_listeners_();
-  }
-#endif
-
   switch (this->state_) {
     case EthernetComponentState::STOPPED:
       if (this->started_) {
@@ -778,8 +770,7 @@ void EthernetComponent::eth_event_handler(void *arg, esp_event_base_t event_base
       event_name = "ETH connected";
       // For static IP configurations, GOT_IP event may not fire, so notify IP listeners here
 #if defined(USE_ETHERNET_IP_STATE_LISTENERS) && defined(USE_ETHERNET_MANUAL_IP)
-      global_eth_component->ip_state_pending_.store(1, std::memory_order_release);
-      global_eth_component->enable_loop_soon_any_context();
+      global_eth_component->notify_ip_state_listeners_();
 #endif
 #if USE_NETWORK_IPV6
       // Start SLAAC on link-up, not after the DHCPv4 lease. This also restores the
@@ -807,9 +798,6 @@ void EthernetComponent::got_ip_event_handler(void *arg, esp_event_base_t event_b
   const esp_netif_ip_info_t *ip_info = &event->ip_info;
   ESP_LOGV(TAG, "[Ethernet event] ETH Got IP " IPSTR, IP2STR(&ip_info->ip));
   global_eth_component->got_ipv4_address_ = true;
-#ifdef USE_ETHERNET_IP_STATE_LISTENERS
-  global_eth_component->ip_state_pending_.store(1, std::memory_order_release);
-#endif
 #if USE_NETWORK_IPV6 && (USE_NETWORK_MIN_IPV6_ADDR_COUNT > 0)
   global_eth_component->connected_ = global_eth_component->ipv6_count_ >= USE_NETWORK_MIN_IPV6_ADDR_COUNT;
   global_eth_component->enable_loop_soon_any_context();  // Enable loop when connection state changes
@@ -817,6 +805,9 @@ void EthernetComponent::got_ip_event_handler(void *arg, esp_event_base_t event_b
   global_eth_component->connected_ = true;
   global_eth_component->enable_loop_soon_any_context();  // Enable loop when connection state changes
 #endif /* USE_NETWORK_IPV6 */
+#ifdef USE_ETHERNET_IP_STATE_LISTENERS
+  global_eth_component->notify_ip_state_listeners_();
+#endif
 }
 
 #if USE_NETWORK_IPV6
@@ -828,9 +819,6 @@ void EthernetComponent::got_ip6_event_handler(void *arg, esp_event_base_t event_
   // after a link flap fires another event for the same address.
   struct esp_ip6_addr if_ip6s[CONFIG_LWIP_IPV6_NUM_ADDRESSES];
   global_eth_component->ipv6_count_ = esp_netif_get_all_ip6(global_eth_component->eth_netif_, if_ip6s);
-#ifdef USE_ETHERNET_IP_STATE_LISTENERS
-  global_eth_component->ip_state_pending_.store(1, std::memory_order_release);
-#endif
 #if (USE_NETWORK_MIN_IPV6_ADDR_COUNT > 0)
   global_eth_component->connected_ =
       global_eth_component->got_ipv4_address_ && (global_eth_component->ipv6_count_ >= USE_NETWORK_MIN_IPV6_ADDR_COUNT);
@@ -839,6 +827,9 @@ void EthernetComponent::got_ip6_event_handler(void *arg, esp_event_base_t event_
   global_eth_component->connected_ = global_eth_component->got_ipv4_address_;
   global_eth_component->enable_loop_soon_any_context();  // Enable loop when connection state changes
 #endif
+#ifdef USE_ETHERNET_IP_STATE_LISTENERS
+  global_eth_component->notify_ip_state_listeners_();
+#endif
 }
 #endif /* USE_NETWORK_IPV6 */
 

esphome/components/hydreon_rgxx/hydreon_rgxx.cpp

@@ -1,5 +1,6 @@
 #include "hydreon_rgxx.h"
 #include "esphome/core/log.h"
+#include "esphome/core/parse_float.h"
 #include <cstring>
 
 namespace esphome::hydreon_rgxx {
@@ -235,7 +236,7 @@ void HydreonRGxxComponent::process_line_(StringRef line) {
     }
 
     // parse value, starting at str position n
-    float data = strtof(line.c_str() + n, nullptr);
+    float data = str_to_float(line.c_str() + n, nullptr);
     this->sensors_[i]->publish_state(data);
     ESP_LOGD(TAG, "Received %s: %f", PROTOCOL_NAMES[i], this->sensors_[i]->get_raw_state());
     this->sensors_received_ |= (1 << i);

esphome/components/smt100/smt100.cpp

@@ -1,5 +1,6 @@
 #include "smt100.h"
 #include "esphome/core/log.h"
+#include "esphome/core/parse_float.h"
 
 namespace esphome::smt100 {
 
@@ -24,19 +25,19 @@ void SMT100Component::loop() {
       token = strtok(nullptr, ",");
       if (!token)
         return;
-      float permittivity = (float) strtod(token, nullptr);
+      float permittivity = str_to_float(token, nullptr);
       token = strtok(nullptr, ",");
       if (!token)
         return;
-      float moisture = (float) strtod(token, nullptr);
+      float moisture = str_to_float(token, nullptr);
       token = strtok(nullptr, ",");
       if (!token)
         return;
-      float temperature = (float) strtod(token, nullptr);
+      float temperature = str_to_float(token, nullptr);
       token = strtok(nullptr, ",");
       if (!token)
         return;
-      float voltage = (float) strtod(token, nullptr);
+      float voltage = str_to_float(token, nullptr);
 
       PUBLISH_STATE(this->counts_sensor_, counts);
 

esphome/components/sx126x/__init__.py

@@ -48,7 +48,7 @@ CONF_WHITENING_ENABLE = "whitening_enable"
 CONF_WHITENING_INITIAL = "whitening_initial"
 
 sx126x_ns = cg.esphome_ns.namespace("sx126x")
-SX126x = sx126x_ns.class_("SX126x", cg.Component)
+SX126x = sx126x_ns.class_("SX126x", cg.Component, spi.SPIDevice)
 SX126xListener = sx126x_ns.class_("SX126xListener")
 SX126xBw = sx126x_ns.enum("SX126xBw")
 SX126xPacketType = sx126x_ns.enum("SX126xPacketType")
@@ -217,9 +217,7 @@ CONFIG_SCHEMA = (
             cv.Required(CONF_RF_SWITCH): cv.boolean,
             cv.Optional(CONF_SHAPING, default="NONE"): cv.enum(SHAPING),
             cv.Optional(CONF_SPREADING_FACTOR, default=7): cv.int_range(min=6, max=12),
-            cv.Optional(CONF_SYNC_VALUE, default=[]): cv.All(
-                cv.ensure_list(cv.hex_uint8_t), cv.Length(max=8)
-            ),
+            cv.Optional(CONF_SYNC_VALUE, default=[]): cv.ensure_list(cv.hex_uint8_t),
             cv.Optional(CONF_TCXO_VOLTAGE, default="NONE"): cv.enum(TCXO_VOLTAGE),
             cv.Optional(CONF_TCXO_DELAY, default="5ms"): cv.All(
                 cv.positive_time_period_microseconds,

esphome/components/sx126x/radio_profile.h

@@ -1,97 +0,0 @@
-#pragma once
-#include "sx126x_reg.h"
-#include <array>
-#include <span>
-#include <algorithm>
-
-namespace esphome::sx126x {
-enum SX126xBw : uint8_t {
-  // FSK
-  SX126X_BW_4800,
-  SX126X_BW_5800,
-  SX126X_BW_7300,
-  SX126X_BW_9700,
-  SX126X_BW_11700,
-  SX126X_BW_14600,
-  SX126X_BW_19500,
-  SX126X_BW_23400,
-  SX126X_BW_29300,
-  SX126X_BW_39000,
-  SX126X_BW_46900,
-  SX126X_BW_58600,
-  SX126X_BW_78200,
-  SX126X_BW_93800,
-  SX126X_BW_117300,
-  SX126X_BW_156200,
-  SX126X_BW_187200,
-  SX126X_BW_234300,
-  SX126X_BW_312000,
-  SX126X_BW_373600,
-  SX126X_BW_467000,
-  // LORA
-  SX126X_BW_7810,
-  SX126X_BW_10420,
-  SX126X_BW_15630,
-  SX126X_BW_20830,
-  SX126X_BW_31250,
-  SX126X_BW_41670,
-  SX126X_BW_62500,
-  SX126X_BW_125000,
-  SX126X_BW_250000,
-  SX126X_BW_500000,
-};
-
-// Requested settings are separate from the last successfully applied profile.
-// Bounded sync storage makes profile snapshots allocation-free.
-struct RadioProfile {
-  uint32_t bitrate{0};
-  uint32_t deviation{0};
-  uint32_t frequency{0};
-  uint32_t tcxo_delay{0};
-  uint16_t crc_polynomial{0};
-  uint16_t crc_initial{0};
-  uint16_t whitening_initial{0};
-  uint16_t preamble_detect{0};
-  uint16_t preamble_size{0};
-  SX126xBw bandwidth{SX126X_BW_125000};
-  uint8_t crc_size{0};
-  uint8_t tcxo_voltage{0};
-  uint8_t coding_rate{0};
-  uint8_t modulation{PACKET_TYPE_LORA};
-  uint8_t pa_ramp{0};
-  uint8_t shaping{0};
-  uint8_t spreading_factor{0};
-  int8_t pa_power{0};
-  uint8_t payload_length{0};
-  bool sx1261{false};
-  bool crc_enable{false};
-  bool crc_inverted{false};
-  bool whitening_enable{false};
-  bool rx_start{false};
-  bool rf_switch{false};
-  std::array<uint8_t, 8> sync_value{};
-  uint8_t sync_size{0};
-  bool sync_valid{true};
-  void set_sync_value(std::span<const uint8_t> bytes) {
-    this->sync_valid = bytes.size() <= this->sync_value.size();
-    if (!this->sync_valid) {
-      return;
-    }
-    std::copy(bytes.begin(), bytes.end(), this->sync_value.begin());
-    this->sync_size = bytes.size();
-  }
-  size_t max_packet_size() const { return this->payload_length > 0 ? this->payload_length : 255; }
-};
-
-// The parts of the last successfully applied profile that runtime operations read.
-// SetPacketParams is encoded once; sends only change its payload length byte.
-struct AppliedProfile {
-  uint32_t frequency{0};
-  std::array<uint8_t, 9> packet_params{};
-  uint8_t packet_params_size{0};
-  uint8_t payload_length{0};
-  uint8_t modulation{PACKET_TYPE_LORA};
-  bool rx_start{false};
-  size_t max_packet_size() const { return this->payload_length > 0 ? this->payload_length : 255; }
-};
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x.cpp

@@ -2,217 +2,534 @@
 #include "esphome/core/application.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 namespace esphome::sx126x {
 
 ESPHOME_LOG_TAG(TAG, "sx126x");
-static constexpr uint32_t TRANSMIT_TIMEOUT_MS = 4000;
-static constexpr uint32_t MAX_TRANSMIT_TIMEOUT_MS = 262143;  // 24-bit SetTx timeout in 1/64 ms steps
-static constexpr uint32_t RECONFIGURE_INTERVAL_ID = 0;
-static constexpr uint32_t RECONFIGURE_INTERVAL_MS = 1000;
+static constexpr uint16_t RAMP[8] PROGMEM = {10, 20, 40, 80, 200, 800, 1700, 3400};
+// Aligned 32 bit loads from flash are safe on ESP8266, so this table is read directly
+static constexpr uint32_t BW_HZ[31] PROGMEM = {4800,   5800,   7300,   9700,   11700,  14600,  19500,  23400,
+                                               29300,  39000,  46900,  58600,  78200,  93800,  117300, 156200,
+                                               187200, 234300, 312000, 373600, 467000, 7810,   10420,  15630,
+                                               20830,  31250,  41670,  62500,  125000, 250000, 500000};
+static constexpr uint8_t BW_LORA[10] PROGMEM = {LORA_BW_7810,   LORA_BW_10420, LORA_BW_15630, LORA_BW_20830,
+                                                LORA_BW_31250,  LORA_BW_41670, LORA_BW_62500, LORA_BW_125000,
+                                                LORA_BW_250000, LORA_BW_500000};
+static constexpr uint8_t BW_FSK[21] PROGMEM = {
+    FSK_BW_4800,   FSK_BW_5800,   FSK_BW_7300,   FSK_BW_9700,   FSK_BW_11700,  FSK_BW_14600,  FSK_BW_19500,
+    FSK_BW_23400,  FSK_BW_29300,  FSK_BW_39000,  FSK_BW_46900,  FSK_BW_58600,  FSK_BW_78200,  FSK_BW_93800,
+    FSK_BW_117300, FSK_BW_156200, FSK_BW_187200, FSK_BW_234300, FSK_BW_312000, FSK_BW_373600, FSK_BW_467000};
 
-// Indexed by SX126xError.
-PROGMEM_STRING_TABLE(SX126xErrorStrings, "none", "timeout", "invalid payload", "radio not ready", "bus timeout",
-                     "radio busy", "cancelled");
+static constexpr uint32_t RESET_DELAY_HIGH_US = 5000;
+static constexpr uint32_t RESET_DELAY_LOW_US = 2000;
+static constexpr uint32_t SWITCHING_DELAY_US = 1;
+static constexpr uint32_t TRANSMIT_TIMEOUT_MS = 4000;
+static constexpr uint32_t BUSY_TIMEOUT_MS = 20;
+
+// OCP (Over Current Protection) values
+static constexpr uint8_t OCP_80MA = 0x18;   // 80 mA max current
+static constexpr uint8_t OCP_140MA = 0x38;  // 140 mA max current
+
+// LoRa low data rate optimization threshold
+static constexpr float LOW_DATA_RATE_OPTIMIZE_THRESHOLD = 16.38f;  // 16.38 ms
+
+uint8_t SX126x::read_fifo_(uint8_t offset, std::vector<uint8_t> &packet) {
+  this->enable();
+  this->wait_busy_();
+  this->transfer_byte(RADIO_READ_BUFFER);
+  this->transfer_byte(offset);
+  uint8_t status = this->transfer_byte(0x00);
+  for (uint8_t &byte : packet) {
+    byte = this->transfer_byte(0x00);
+  }
+  this->disable();
+  return status;
+}
+
+void SX126x::write_fifo_(uint8_t offset, const uint8_t *data, size_t len) {
+  this->enable();
+  this->wait_busy_();
+  this->transfer_byte(RADIO_WRITE_BUFFER);
+  this->transfer_byte(offset);
+  for (size_t i = 0; i < len; i++) {
+    this->transfer_byte(data[i]);
+  }
+  this->disable();
+  delayMicroseconds(SWITCHING_DELAY_US);
+}
+
+uint8_t SX126x::read_opcode_(uint8_t opcode, uint8_t *data, uint8_t size) {
+  this->enable();
+  this->wait_busy_();
+  this->transfer_byte(opcode);
+  uint8_t status = this->transfer_byte(0x00);
+  for (int32_t i = 0; i < size; i++) {
+    data[i] = this->transfer_byte(0x00);
+  }
+  this->disable();
+  return status;
+}
+
+void SX126x::write_opcode_(uint8_t opcode, uint8_t *data, uint8_t size) {
+  this->enable();
+  this->wait_busy_();
+  this->transfer_byte(opcode);
+  for (int32_t i = 0; i < size; i++) {
+    this->transfer_byte(data[i]);
+  }
+  this->disable();
+  delayMicroseconds(SWITCHING_DELAY_US);
+}
+
+void SX126x::read_register_(uint16_t reg, uint8_t *data, uint8_t size) {
+  this->enable();
+  this->wait_busy_();
+  this->write_byte(RADIO_READ_REGISTER);
+  this->write_byte((reg >> 8) & 0xFF);
+  this->write_byte((reg >> 0) & 0xFF);
+  this->write_byte(0x00);
+  for (int32_t i = 0; i < size; i++) {
+    data[i] = this->transfer_byte(0x00);
+  }
+  this->disable();
+}
+
+void SX126x::write_register_(uint16_t reg, uint8_t *data, uint8_t size) {
+  this->enable();
+  this->wait_busy_();
+  this->write_byte(RADIO_WRITE_REGISTER);
+  this->write_byte((reg >> 8) & 0xFF);
+  this->write_byte((reg >> 0) & 0xFF);
+  for (int32_t i = 0; i < size; i++) {
+    this->transfer_byte(data[i]);
+  }
+  this->disable();
+  delayMicroseconds(SWITCHING_DELAY_US);
+}
+
+void IRAM_ATTR SX126x::gpio_intr(SX126x *arg) { arg->enable_loop_soon_any_context(); }
 
 void SX126x::setup() {
-  // Sized once so later packet reads never reallocate; read_packet() sets the length.
-  this->packet_.resize(SX126X_MAX_PACKET_SIZE);
   // setup pins
-  GPIOPin *dio1 = this->radio_.get_dio1_pin();
-  this->radio_.bus().get_busy_pin()->setup();
-  this->radio_.get_rst_pin()->setup();
-  dio1->setup();
-  if (dio1->is_internal()) {
-    static_cast<InternalGPIOPin *>(dio1)->attach_interrupt(&SX126x::gpio_intr, this, gpio::INTERRUPT_RISING_EDGE);
+  this->busy_pin_->setup();
+  this->rst_pin_->setup();
+  this->dio1_pin_->setup();
+  if (this->dio1_pin_->is_internal()) {
+    static_cast<InternalGPIOPin *>(this->dio1_pin_)
+        ->attach_interrupt(&SX126x::gpio_intr, this, gpio::INTERRUPT_RISING_EDGE);
   }
 
   // start spi
-  this->radio_.bus().setup();
+  this->spi_setup();
 
-  // configure rf; a failure is reported through mark_failed() only, with its own reason
-  const RadioEffects effects = this->radio_.configure(this->requested_profile_, this->version_);
-  if (effects.warning != nullptr) {
-    this->mark_failed(effects.warning);
-    return;
-  }
-  this->apply_(effects);
-}
-
-void SX126x::apply_(const RadioEffects &effects) {
-  // User code may only run once the radio has committed. A rejection during another
-  // operation's command sequence carries no status or callbacks.
-  ESPHOME_DEBUG_ASSERT(!this->radio_.busy() || (!effects.report && effects.listener == nullptr && !effects.received));
-  if (effects.sleep_loop) {
-    this->disable_loop();
-  } else if (this->radio_.state() != RadioState::RADIO_STATE_NEEDS_CONFIGURATION) {
-    this->enable_loop();
-  }
-  this->watch_configuration_();
-  // The packet buffer is borrowed from the status report until listeners return;
-  // loop() will not refill it meanwhile.
-  if (effects.received) {
-    this->rx_dispatching_ = true;
-  }
-  if (effects.report) {
-    this->status_comm_result(effects.warning == nullptr, effects.warning);
-  }
-  if (effects.listener != nullptr) {
-    effects.listener->on_transmit_complete(effects.result);
-  }
-  if (effects.received) {
-    for (auto *listener : this->listeners_) {
-      listener->on_packet(this->packet_, effects.rssi, effects.snr);
-    }
-    this->packet_trigger_.trigger(this->packet_, effects.rssi, effects.snr);
-    this->rx_dispatching_ = false;
-  }
+  // configure rf
+  this->configure();
 }
 
 void SX126x::configure() {
-  // Before setup() the bus is not set up, and after a failed setup the radio stays unused
-  if (!this->is_ready()) {
+  uint8_t buf[8];
+
+  // toggle chip reset
+  this->rst_pin_->digital_write(true);
+  delayMicroseconds(RESET_DELAY_HIGH_US);
+  this->rst_pin_->digital_write(false);
+  delayMicroseconds(RESET_DELAY_LOW_US);
+  this->rst_pin_->digital_write(true);
+  delayMicroseconds(RESET_DELAY_HIGH_US);
+
+  // wakeup
+  this->read_opcode_(RADIO_GET_STATUS, nullptr, 0);
+
+  // config tcxo
+  if (this->tcxo_voltage_ != TCXO_CTRL_NONE) {
+    uint32_t delay = this->tcxo_delay_ >> 6;
+    buf[0] = this->tcxo_voltage_;
+    buf[1] = (delay >> 16) & 0xFF;
+    buf[2] = (delay >> 8) & 0xFF;
+    buf[3] = (delay >> 0) & 0xFF;
+    this->write_opcode_(RADIO_SET_TCXOMODE, buf, 4);
+    buf[0] = 0x7F;
+    this->write_opcode_(RADIO_CALIBRATE, buf, 1);
+  }
+
+  // clear errors
+  buf[0] = 0x00;
+  buf[1] = 0x00;
+  this->write_opcode_(RADIO_CLR_ERROR, buf, 2);
+
+  // rf switch
+  if (this->rf_switch_) {
+    buf[0] = 0x01;
+    this->write_opcode_(RADIO_SET_RFSWITCHMODE, buf, 1);
+  }
+
+  // check silicon version to make sure hw is ok
+  this->read_register_(REG_VERSION_STRING, (uint8_t *) this->version_, sizeof(this->version_));
+  this->version_[sizeof(this->version_) - 1] = '\0';
+  if (strncmp(this->version_, "SX126", 5) != 0 && strncmp(this->version_, "LLCC68", 6) != 0) {
+    this->mark_failed(LOG_STR("Unsupported chip version"));
     return;
   }
-  if (!this->radio_.can_configure()) {
-    ESP_LOGW(TAG, "Radio operation in progress, configuration ignored");
-    return;
-  }
-  this->cold_sleep_ = false;
-  this->apply_(this->radio_.configure(this->requested_profile_, this->version_));
-}
 
-// A failed command leaves the radio needing configuration, which nothing else would do, so a node
-// that only uses YAML would stay deaf. Cold sleep is asked for, so it waits for a mode command.
-void SX126x::watch_configuration_() {
-  const bool needed = this->radio_.state() == RadioState::RADIO_STATE_NEEDS_CONFIGURATION && !this->cold_sleep_;
-  if (needed == this->reconfigure_pending_) {
-    return;
-  }
-  this->reconfigure_pending_ = needed;
-  if (needed) {
-    this->set_interval(RECONFIGURE_INTERVAL_ID, RECONFIGURE_INTERVAL_MS, [this]() { this->configure(); });
-  } else {
-    this->cancel_interval(RECONFIGURE_INTERVAL_ID);
-  }
-}
+  // setup packet type
+  buf[0] = this->modulation_;
+  this->write_opcode_(RADIO_SET_PACKETTYPE, buf, 1);
 
-void SX126x::set_mode_rx() { this->change_mode_(ModeCommand::MODE_COMMAND_RX); }
-void SX126x::set_mode_tx() { this->change_mode_(ModeCommand::MODE_COMMAND_TX); }
-void SX126x::set_mode_standby(SX126xStandbyMode mode) { this->change_mode_(ModeCommand::MODE_COMMAND_STANDBY, mode); }
-void SX126x::set_mode_sleep(bool cold) {
-  this->change_mode_(cold ? ModeCommand::MODE_COMMAND_COLD_SLEEP : ModeCommand::MODE_COMMAND_SLEEP);
-}
-void SX126x::run_image_cal() { this->change_mode_(ModeCommand::MODE_COMMAND_IMAGE_CAL); }
+  // calibrate image
+  this->run_image_cal();
 
-void SX126x::change_mode_(ModeCommand command, uint8_t arg) {
-  const bool sleep = command == ModeCommand::MODE_COMMAND_SLEEP || command == ModeCommand::MODE_COMMAND_COLD_SLEEP;
-  if (this->cold_sleep_) {
-    if (sleep) {
-      return;
+  // set frequency
+  uint64_t freq = ((uint64_t) this->frequency_ << 25) / XTAL_FREQ;
+  buf[0] = (uint8_t) ((freq >> 24) & 0xFF);
+  buf[1] = (uint8_t) ((freq >> 16) & 0xFF);
+  buf[2] = (uint8_t) ((freq >> 8) & 0xFF);
+  buf[3] = (uint8_t) (freq & 0xFF);
+  this->write_opcode_(RADIO_SET_RFFREQUENCY, buf, 4);
+
+  // configure pa
+  int8_t pa_power = this->pa_power_;
+  if (this->sx1261_) {
+    // the following values were taken from section 13.1.14.1 table 13-21
+    // in rev 2.1 of the datasheet
+    if (pa_power == 15) {
+      uint8_t cfg[4] = {0x06, 0x00, 0x01, 0x01};
+      this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
+    } else {
+      uint8_t cfg[4] = {0x04, 0x00, 0x01, 0x01};
+      this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
     }
-    // Cold sleep lost the configuration, so waking needs it applied again first
-    this->configure();
+    pa_power = std::max(pa_power, (int8_t) -3);
+    pa_power = std::min(pa_power, (int8_t) 14);
+    buf[0] = OCP_80MA;
+    this->write_register_(REG_OCP, buf, 1);
+  } else {
+    // the following values were taken from section 13.1.14.1 table 13-21
+    // in rev 2.1 of the datasheet
+    uint8_t cfg[4] = {0x04, 0x07, 0x00, 0x01};
+    this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
+    pa_power = std::max(pa_power, (int8_t) -3);
+    pa_power = std::min(pa_power, (int8_t) 22);
+    buf[0] = OCP_140MA;
+    this->write_register_(REG_OCP, buf, 1);
   }
-  if (!this->radio_.can_change_mode()) {
-    ESP_LOGW(TAG, "Radio unavailable, mode change ignored");
-    return;
+  buf[0] = pa_power;
+  buf[1] = this->pa_ramp_;
+  this->write_opcode_(RADIO_SET_TXPARAMS, buf, 2);
+
+  // configure modem
+  if (this->modulation_ == PACKET_TYPE_LORA) {
+    // set modulation params
+    float duration = 1000.0f * (1UL << this->spreading_factor_) / BW_HZ[this->bandwidth_];
+    buf[0] = this->spreading_factor_;
+    buf[1] = progmem_read_byte(&BW_LORA[this->bandwidth_ - SX126X_BW_7810]);
+    buf[2] = this->coding_rate_;
+    buf[3] = (duration > LOW_DATA_RATE_OPTIMIZE_THRESHOLD) ? 0x01 : 0x00;
+    this->write_opcode_(RADIO_SET_MODULATIONPARAMS, buf, 4);
+
+    // set packet params and sync word
+    this->set_packet_params_(this->get_max_packet_size());
+    if (this->sync_value_.size() == 2) {
+      this->write_register_(REG_LORA_SYNCWORD, this->sync_value_.data(), this->sync_value_.size());
+    }
+  } else {
+    // set modulation params
+    uint32_t bitrate = ((uint64_t) XTAL_FREQ * 32) / this->bitrate_;
+    uint32_t fdev = ((uint64_t) this->deviation_ << 25) / XTAL_FREQ;
+    buf[0] = (bitrate >> 16) & 0xFF;
+    buf[1] = (bitrate >> 8) & 0xFF;
+    buf[2] = (bitrate >> 0) & 0xFF;
+    buf[3] = this->shaping_;
+    buf[4] = progmem_read_byte(&BW_FSK[this->bandwidth_ - SX126X_BW_4800]);
+    buf[5] = (fdev >> 16) & 0xFF;
+    buf[6] = (fdev >> 8) & 0xFF;
+    buf[7] = (fdev >> 0) & 0xFF;
+    this->write_opcode_(RADIO_SET_MODULATIONPARAMS, buf, 8);
+
+    // set crc params
+    if (this->crc_enable_) {
+      buf[0] = this->crc_initial_ >> 8;
+      buf[1] = this->crc_initial_ & 0xFF;
+      this->write_register_(REG_CRC_INITIAL, buf, 2);
+      buf[0] = this->crc_polynomial_ >> 8;
+      buf[1] = this->crc_polynomial_ & 0xFF;
+      this->write_register_(REG_CRC_POLYNOMIAL, buf, 2);
+    }
+
+    // set whitening params
+    if (this->whitening_enable_) {
+      // according to the datasheet, section 12 table 12-1 "The user should not
+      // change the value of the 7 MSB of this register"
+      this->read_register_(REG_WHITENING_INITIAL, buf, 1);
+      buf[0] = (buf[0] & 0xFE) | ((this->whitening_initial_ >> 8) & 0x01);
+      buf[1] = this->whitening_initial_ & 0xFF;
+      this->write_register_(REG_WHITENING_INITIAL, buf, 2);
+    }
+
+    // set packet params and sync word
+    this->set_packet_params_(this->get_max_packet_size());
+    if (!this->sync_value_.empty()) {
+      this->write_register_(REG_GFSK_SYNCWORD, this->sync_value_.data(), this->sync_value_.size());
+    }
+  }
+
+  // switch to rx or sleep
+  if (this->rx_start_) {
+    this->set_mode_rx();
+  } else {
+    this->set_mode_sleep();
   }
-  this->cold_sleep_ = command == ModeCommand::MODE_COMMAND_COLD_SLEEP;
-  this->apply_(this->radio_.change_mode(command, arg));
 }
 
-size_t SX126x::get_max_packet_size() { return this->radio_.max_packet_size(); }
+size_t SX126x::get_max_packet_size() {
+  if (this->payload_length_ > 0) {
+    return this->payload_length_;
+  }
+  return SX126X_MAX_PACKET_SIZE;
+}
+
+void SX126x::set_packet_params_(uint8_t payload_length) {
+  uint8_t buf[9];
+  if (this->modulation_ == PACKET_TYPE_LORA) {
+    buf[0] = (this->preamble_size_ >> 8) & 0xFF;
+    buf[1] = (this->preamble_size_ >> 0) & 0xFF;
+    buf[2] = (this->payload_length_ > 0) ? 0x01 : 0x00;
+    buf[3] = payload_length;
+    buf[4] = (this->crc_enable_) ? 0x01 : 0x00;
+    buf[5] = 0x00;
+    this->write_opcode_(RADIO_SET_PACKETPARAMS, buf, 6);
+  } else {
+    uint16_t preamble_size = this->preamble_size_ * 8;
+    buf[0] = (preamble_size >> 8) & 0xFF;
+    buf[1] = (preamble_size >> 0) & 0xFF;
+    buf[2] = (this->preamble_detect_ > 0) ? ((this->preamble_detect_ - 1) | 0x04) : 0x00;
+    buf[3] = this->sync_value_.size() * 8;
+    buf[4] = 0x00;
+    buf[5] = (this->payload_length_ > 0) ? 0x00 : 0x01;
+    buf[6] = payload_length;
+    if (this->crc_enable_) {
+      buf[7] = (this->crc_inverted_ ? 0x04 : 0x00) + (this->crc_size_ & 0x02);
+    } else {
+      buf[7] = 0x01;
+    }
+    buf[8] = (this->whitening_enable_) ? 0x01 : 0x00;
+    this->write_opcode_(RADIO_SET_PACKETPARAMS, buf, 9);
+  }
+}
 
 SX126xError SX126x::transmit_packet(const uint8_t *data, size_t len) {
-  SX126xError result = this->start_transmit_(nullptr, data, len, TRANSMIT_TIMEOUT_MS);
-  if (result == SX126xError::SX126X_ERROR_NONE) {
-    // Wait for this send's own completion. A send without a listener cannot be cancelled,
-    // and no user code runs between these polls, so the send cannot be replaced.
-    result = SX126xError::SX126X_ERROR_NOT_READY;
-    while (this->radio_.is_transmitting()) {
-      const RadioEffects effects = this->radio_.poll_transmit(millis());
-      if (effects.finished) {
-        result = effects.result;
-        this->apply_(effects);
-        break;
-      }
-      App.feed_wdt();
-    }
-  }
-  if (result != SX126xError::SX126X_ERROR_NONE) {
-    ESP_LOGW(
-        TAG, "Packet send failed: %s",
-        LOG_STR_ARG(SX126xErrorStrings::get_log_str(static_cast<uint8_t>(result), SX126xErrorStrings::LAST_INDEX)));
-  }
-  return result;
-}
-
-SX126xError SX126x::start_transmit_async(SX126xTransmitListener *listener, const uint8_t *data, size_t len,
-                                         uint32_t timeout_ms) {
-  if (listener == nullptr || timeout_ms == 0 || timeout_ms > MAX_TRANSMIT_TIMEOUT_MS) {
-    return SX126xError::SX126X_ERROR_INVALID_PARAMS;
-  }
-  return this->start_transmit_(listener, data, len, timeout_ms);
-}
-
-SX126xError SX126x::start_transmit_(SX126xTransmitListener *listener, const uint8_t *data, size_t len,
-                                    uint32_t timeout_ms) {
+  // Callers such as a template number's on_value can run before setup() or after a failed setup
   if (!this->is_ready()) {
+    ESP_LOGW(TAG, "Radio not ready, packet dropped");
     return SX126xError::SX126X_ERROR_NOT_READY;
   }
-  const RadioEffects effects = this->radio_.start_transmit(listener, data, len, timeout_ms);
-  this->apply_(effects);
-  return effects.result;
+  if (this->payload_length_ > 0 && this->payload_length_ != len) {
+    ESP_LOGE(TAG, "Packet size does not match config");
+    return SX126xError::INVALID_PARAMS;
+  }
+  if (len == 0 || len > this->get_max_packet_size()) {
+    ESP_LOGE(TAG, "Packet size out of range");
+    return SX126xError::INVALID_PARAMS;
+  }
+
+  SX126xError ret = SX126xError::NONE;
+  this->set_mode_standby(STDBY_XOSC);
+  if (this->payload_length_ == 0) {
+    this->set_packet_params_(len);
+  }
+  this->write_fifo_(0x00, data, len);
+  this->set_mode_tx();
+
+  // wait until transmit completes, typically the delay will be less than 100 ms
+  uint32_t start = millis();
+  while (!this->dio1_pin_->digital_read()) {
+    App.feed_wdt();
+    if (millis() - start > TRANSMIT_TIMEOUT_MS) {
+      ESP_LOGE(TAG, "Transmit packet failure");
+      ret = SX126xError::TIMEOUT;
+      break;
+    }
+  }
+
+  uint8_t buf[2];
+  buf[0] = 0xFF;
+  buf[1] = 0xFF;
+  this->write_opcode_(RADIO_CLR_IRQSTATUS, buf, 2);
+  if (this->payload_length_ == 0) {
+    this->set_packet_params_(this->get_max_packet_size());
+  }
+  if (this->rx_start_) {
+    this->set_mode_rx();
+  } else {
+    this->set_mode_sleep();
+  }
+  return ret;
 }
 
-bool SX126x::cancel_transmit_async(SX126xTransmitListener *listener) {
-  const RadioEffects effects = this->radio_.cancel_transmit(listener);
-  if (!effects.finished) {
-    return false;
+void SX126x::call_listeners_(const std::vector<uint8_t> &packet, float rssi, float snr) {
+  for (auto &listener : this->listeners_) {
+    listener->on_packet(packet, rssi, snr);
   }
-  this->apply_(effects);
-  return true;
+  this->packet_trigger_.trigger(packet, rssi, snr);
 }
 
 void SX126x::loop() {
-  if (this->rx_dispatching_ || this->is_failed()) {
+  if (this->dio1_pin_->is_internal()) {
+    this->disable_loop();
+  }
+  if (!this->dio1_pin_->digital_read()) {
     return;
   }
-  this->apply_(this->radio_.poll(App.get_loop_component_start_time(), this->packet_));
+
+  uint16_t status;
+  uint8_t buf[3];
+  uint8_t rssi;
+  int8_t snr;
+  this->read_opcode_(RADIO_GET_IRQSTATUS, buf, 2);
+  this->write_opcode_(RADIO_CLR_IRQSTATUS, buf, 2);
+  status = (buf[0] << 8) | buf[1];
+  if ((status & IRQ_RX_DONE) == IRQ_RX_DONE) {
+    if ((status & IRQ_CRC_ERROR) != IRQ_CRC_ERROR) {
+      this->read_opcode_(RADIO_GET_PACKETSTATUS, buf, 3);
+      if (this->modulation_ == PACKET_TYPE_LORA) {
+        rssi = buf[0];
+        snr = buf[1];
+      } else {
+        rssi = buf[2];
+        snr = 0;
+      }
+      this->read_opcode_(RADIO_GET_RXBUFFERSTATUS, buf, 2);
+      this->packet_.resize(buf[0]);
+      this->read_fifo_(buf[1], this->packet_);
+      this->call_listeners_(this->packet_, (float) rssi / -2.0f, (float) snr / 4.0f);
+    }
+  }
+}
+
+void SX126x::run_image_cal() {
+  // the following values were taken from section 9.2.1 table 9-2
+  // in rev 2.1 of the datasheet
+  uint8_t buf[2] = {0, 0};
+  if (this->frequency_ > 900000000) {
+    buf[0] = 0xE1;
+    buf[1] = 0xE9;
+  } else if (this->frequency_ > 850000000) {
+    buf[0] = 0xD7;
+    buf[1] = 0xDB;
+  } else if (this->frequency_ > 770000000) {
+    buf[0] = 0xC1;
+    buf[1] = 0xC5;
+  } else if (this->frequency_ > 460000000) {
+    buf[0] = 0x75;
+    buf[1] = 0x81;
+  } else if (this->frequency_ > 425000000) {
+    buf[0] = 0x6B;
+    buf[1] = 0x6F;
+  }
+  if (buf[0] > 0 && buf[1] > 0) {
+    this->write_opcode_(RADIO_CALIBRATEIMAGE, buf, 2);
+  }
+}
+
+void SX126x::set_mode_rx() {
+  uint8_t buf[8];
+
+  // configure irq params
+  uint16_t irq = IRQ_RX_DONE | IRQ_RX_TX_TIMEOUT | IRQ_CRC_ERROR;
+  buf[0] = (irq >> 8) & 0xFF;
+  buf[1] = (irq >> 0) & 0xFF;
+  buf[2] = (irq >> 8) & 0xFF;
+  buf[3] = (irq >> 0) & 0xFF;
+  buf[4] = (IRQ_RADIO_NONE >> 8) & 0xFF;
+  buf[5] = (IRQ_RADIO_NONE >> 0) & 0xFF;
+  buf[6] = (IRQ_RADIO_NONE >> 8) & 0xFF;
+  buf[7] = (IRQ_RADIO_NONE >> 0) & 0xFF;
+  this->write_opcode_(RADIO_SET_DIOIRQPARAMS, buf, 8);
+
+  // set timeout to 0
+  buf[0] = 0x00;
+  this->write_opcode_(RADIO_SET_LORASYMBTIMEOUT, buf, 1);
+
+  // switch to continuous mode rx
+  buf[0] = 0xFF;
+  buf[1] = 0xFF;
+  buf[2] = 0xFF;
+  this->write_opcode_(RADIO_SET_RX, buf, 3);
+}
+
+void SX126x::set_mode_tx() {
+  uint8_t buf[8];
+
+  // configure irq params
+  uint16_t irq = IRQ_TX_DONE | IRQ_RX_TX_TIMEOUT;
+  buf[0] = (irq >> 8) & 0xFF;
+  buf[1] = (irq >> 0) & 0xFF;
+  buf[2] = (irq >> 8) & 0xFF;
+  buf[3] = (irq >> 0) & 0xFF;
+  buf[4] = (IRQ_RADIO_NONE >> 8) & 0xFF;
+  buf[5] = (IRQ_RADIO_NONE >> 0) & 0xFF;
+  buf[6] = (IRQ_RADIO_NONE >> 8) & 0xFF;
+  buf[7] = (IRQ_RADIO_NONE >> 0) & 0xFF;
+  this->write_opcode_(RADIO_SET_DIOIRQPARAMS, buf, 8);
+
+  // switch to single mode tx
+  buf[0] = 0x00;
+  buf[1] = 0x00;
+  buf[2] = 0x00;
+  this->write_opcode_(RADIO_SET_TX, buf, 3);
+}
+
+void SX126x::set_mode_sleep(bool cold) {
+  // 0x04 = warm start (config retained), 0x00 = cold start (config lost, lowest power)
+  uint8_t buf[1];
+  buf[0] = cold ? 0x00 : 0x04;
+  this->write_opcode_(RADIO_SET_SLEEP, buf, 1);
+}
+
+void SX126x::set_mode_standby(SX126xStandbyMode mode) {
+  uint8_t buf[1];
+  buf[0] = mode;
+  this->write_opcode_(RADIO_SET_STANDBY, buf, 1);
+}
+
+void SX126x::wait_busy_() {
+  // wait if the device is busy, the maximum delay is only be a few ms
+  // with most commands taking only a few us
+  uint32_t start = millis();
+  while (this->busy_pin_->digital_read()) {
+    if (millis() - start > BUSY_TIMEOUT_MS) {
+      this->mark_failed(LOG_STR("Wait busy timeout"));
+      break;
+    }
+  }
 }
 
 void SX126x::dump_config() {
-  ESP_LOGCONFIG(TAG, "SX126x:\n  Ready for operation: %s",
-                YESNO(!this->is_failed() && this->radio_.state() == RadioState::RADIO_STATE_IDLE));
-  LOG_PIN("  CS Pin: ", this->radio_.bus().get_cs_pin());
-  LOG_PIN("  BUSY Pin: ", this->radio_.bus().get_busy_pin());
-  LOG_PIN("  RST Pin: ", this->radio_.get_rst_pin());
-  LOG_PIN("  DIO1 Pin: ", this->radio_.get_dio1_pin());
+  ESP_LOGCONFIG(TAG, "SX126x:");
+  LOG_PIN("  CS Pin: ", this->cs_);
+  LOG_PIN("  BUSY Pin: ", this->busy_pin_);
+  LOG_PIN("  RST Pin: ", this->rst_pin_);
+  LOG_PIN("  DIO1 Pin: ", this->dio1_pin_);
   ESP_LOGCONFIG(TAG,
                 "  HW Version: %15s\n"
-                "  Requested configuration:\n"
                 "  Frequency: %" PRIu32 " Hz\n"
                 "  Bandwidth: %" PRIu32 " Hz\n"
                 "  PA Power: %" PRId8 " dBm\n"
                 "  PA Ramp: %" PRIu16 " us\n"
-                "  Payload Length: %" PRIu8 "\n"
+                "  Payload Length: %" PRIu32 "\n"
                 "  CRC Enable: %s\n"
                 "  Rx Start: %s",
-                this->version_, this->requested_profile_.frequency,
-                SX126xCommands::bandwidth_hz(this->requested_profile_.bandwidth), this->requested_profile_.pa_power,
-                SX126xCommands::ramp_us(this->requested_profile_.pa_ramp), this->requested_profile_.payload_length,
-                TRUEFALSE(this->requested_profile_.crc_enable), TRUEFALSE(this->requested_profile_.rx_start));
-  if (this->requested_profile_.modulation == PACKET_TYPE_GFSK) {
+                this->version_, this->frequency_, BW_HZ[this->bandwidth_], this->pa_power_,
+                progmem_read_uint16(&RAMP[this->pa_ramp_]), this->payload_length_, TRUEFALSE(this->crc_enable_),
+                TRUEFALSE(this->rx_start_));
+  if (this->modulation_ == PACKET_TYPE_GFSK) {
     const char *shaping = "NONE";
-    if (this->requested_profile_.shaping == GAUSSIAN_BT_0_3) {
+    if (this->shaping_ == GAUSSIAN_BT_0_3) {
       shaping = "GAUSSIAN_BT_0_3";
-    } else if (this->requested_profile_.shaping == GAUSSIAN_BT_0_5) {
+    } else if (this->shaping_ == GAUSSIAN_BT_0_5) {
       shaping = "GAUSSIAN_BT_0_5";
-    } else if (this->requested_profile_.shaping == GAUSSIAN_BT_0_7) {
+    } else if (this->shaping_ == GAUSSIAN_BT_0_7) {
       shaping = "GAUSSIAN_BT_0_7";
-    } else if (this->requested_profile_.shaping == GAUSSIAN_BT_1_0) {
+    } else if (this->shaping_ == GAUSSIAN_BT_1_0) {
       shaping = "GAUSSIAN_BT_1_0";
     }
     ESP_LOGCONFIG(TAG,
@@ -222,15 +539,14 @@ void SX126x::dump_config() {
                   "  Preamble Size: %" PRIu16 "\n"
                   "  Preamble Detect: %" PRIu16 "\n"
                   "  Bitrate: %" PRIu32 "b/s",
-                  this->requested_profile_.deviation, shaping, this->requested_profile_.preamble_size,
-                  this->requested_profile_.preamble_detect, this->requested_profile_.bitrate);
-  } else if (this->requested_profile_.modulation == PACKET_TYPE_LORA) {
+                  this->deviation_, shaping, this->preamble_size_, this->preamble_detect_, this->bitrate_);
+  } else if (this->modulation_ == PACKET_TYPE_LORA) {
     const char *cr = "4/8";
-    if (this->requested_profile_.coding_rate == LORA_CR_4_5) {
+    if (this->coding_rate_ == LORA_CR_4_5) {
       cr = "4/5";
-    } else if (this->requested_profile_.coding_rate == LORA_CR_4_6) {
+    } else if (this->coding_rate_ == LORA_CR_4_6) {
       cr = "4/6";
-    } else if (this->requested_profile_.coding_rate == LORA_CR_4_7) {
+    } else if (this->coding_rate_ == LORA_CR_4_7) {
       cr = "4/7";
     }
     ESP_LOGCONFIG(TAG,
@@ -238,17 +554,16 @@ void SX126x::dump_config() {
                   "  Spreading Factor: %" PRIu8 "\n"
                   "  Coding Rate: %s\n"
                   "  Preamble Size: %" PRIu16,
-                  this->requested_profile_.spreading_factor, cr, this->requested_profile_.preamble_size);
+                  this->spreading_factor_, cr, this->preamble_size_);
   }
-  if (this->requested_profile_.sync_size != 0) {
+  if (!this->sync_value_.empty()) {
     char hex_buf[17];  // 8 bytes max = 16 hex chars + null
-    ESP_LOGCONFIG(
-        TAG, "  Sync Value: 0x%s",
-        format_hex_to(hex_buf, this->requested_profile_.sync_value.data(), this->requested_profile_.sync_size));
+    ESP_LOGCONFIG(TAG, "  Sync Value: 0x%s",
+                  format_hex_to(hex_buf, this->sync_value_.data(), this->sync_value_.size()));
   }
-  ESP_LOGCONFIG(TAG, "  Whitening Enable: %s", TRUEFALSE(this->requested_profile_.whitening_enable));
-  if (this->requested_profile_.whitening_enable) {
-    ESP_LOGCONFIG(TAG, "  Whitening Initial: 0x%03x", this->requested_profile_.whitening_initial);
+  ESP_LOGCONFIG(TAG, "  Whitening Enable: %s", TRUEFALSE(this->whitening_enable_));
+  if (this->whitening_enable_) {
+    ESP_LOGCONFIG(TAG, "  Whitening Initial: 0x%03x", this->whitening_initial_);
   }
 }
 

esphome/components/sx126x/sx126x.h

@@ -1,123 +1,157 @@
 #pragma once
 
-#include "sx126x_radio.h"
 #include "esphome/components/spi/spi.h"
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 #include "sx126x_reg.h"
+#include <utility>
 #include <vector>
 
 namespace esphome::sx126x {
 
 static constexpr size_t SX126X_MAX_PACKET_SIZE = 255;
 
+enum SX126xBw : uint8_t {
+  // FSK
+  SX126X_BW_4800,
+  SX126X_BW_5800,
+  SX126X_BW_7300,
+  SX126X_BW_9700,
+  SX126X_BW_11700,
+  SX126X_BW_14600,
+  SX126X_BW_19500,
+  SX126X_BW_23400,
+  SX126X_BW_29300,
+  SX126X_BW_39000,
+  SX126X_BW_46900,
+  SX126X_BW_58600,
+  SX126X_BW_78200,
+  SX126X_BW_93800,
+  SX126X_BW_117300,
+  SX126X_BW_156200,
+  SX126X_BW_187200,
+  SX126X_BW_234300,
+  SX126X_BW_312000,
+  SX126X_BW_373600,
+  SX126X_BW_467000,
+  // LORA
+  SX126X_BW_7810,
+  SX126X_BW_10420,
+  SX126X_BW_15630,
+  SX126X_BW_20830,
+  SX126X_BW_31250,
+  SX126X_BW_41670,
+  SX126X_BW_62500,
+  SX126X_BW_125000,
+  SX126X_BW_250000,
+  SX126X_BW_500000,
+};
+
+enum class SX126xError { NONE = 0, TIMEOUT, INVALID_PARAMS, SX126X_ERROR_NOT_READY };
+
 class SX126xListener {
  public:
-  // Called from loop(). The packet is borrowed until this returns; copy what you keep.
-  // Listeners may send, change mode or configure. A send returns BUSY if another packet
-  // is already waiting, which is then delivered by the next loop().
   virtual void on_packet(const std::vector<uint8_t> &packet, float rssi, float snr) = 0;
 };
 
-class SX126x final : public Component {
+class SX126x final : public Component,
+                     public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
+                                           spi::DATA_RATE_8MHZ> {
  public:
-  void set_spi_parent(spi::SPIComponent *parent) { this->radio_.bus().set_spi_parent(parent); }
-  void set_cs_pin(GPIOPin *pin) { this->radio_.bus().set_cs_pin(pin); }
-  void set_data_rate(uint32_t rate) { this->radio_.bus().set_data_rate(rate); }
-  void set_mode(spi::SPIMode mode) { this->radio_.bus().set_mode(mode); }
-  void set_bit_order(spi::SPIBitOrder order) { this->radio_.bus().set_bit_order(order); }
-  void set_release_device(bool release) { this->radio_.bus().set_release_device(release); }
-  void set_write_only(bool write_only) { this->radio_.bus().set_write_only(write_only); }
-#ifdef USE_SPI_PSRAM_DMA
-  void set_psram_dma(bool enable) { this->radio_.bus().set_psram_dma(enable); }
-#endif
-  // Releases the SPI bus, as SPIDevice::spi_teardown() did before SX126x stopped being one
-  void spi_teardown() { this->radio_.bus().teardown(); }
   size_t get_max_packet_size();
   float get_setup_priority() const override { return setup_priority::PROCESSOR; }
   void setup() override;
   void loop() override;
   void dump_config() override;
-  void set_bandwidth(SX126xBw bandwidth) { this->requested_profile_.bandwidth = bandwidth; }
-  void set_bitrate(uint32_t bitrate) { this->requested_profile_.bitrate = bitrate; }
-  void set_busy_pin(GPIOPin *busy_pin) { this->radio_.bus().set_busy_pin(busy_pin); }
-  void set_coding_rate(uint8_t coding_rate) { this->requested_profile_.coding_rate = coding_rate; }
-  void set_crc_enable(bool crc_enable) { this->requested_profile_.crc_enable = crc_enable; }
-  void set_crc_inverted(bool crc_inverted) { this->requested_profile_.crc_inverted = crc_inverted; }
-  void set_crc_size(uint8_t crc_size) { this->requested_profile_.crc_size = crc_size; }
-  void set_crc_polynomial(uint16_t crc_polynomial) { this->requested_profile_.crc_polynomial = crc_polynomial; }
-  void set_crc_initial(uint16_t crc_initial) { this->requested_profile_.crc_initial = crc_initial; }
-  void set_whitening_enable(bool whitening_enable) { this->requested_profile_.whitening_enable = whitening_enable; }
-  void set_whitening_initial(uint16_t whitening_initial) {
-    this->requested_profile_.whitening_initial = whitening_initial;
-  }
-  void set_deviation(uint32_t deviation) { this->requested_profile_.deviation = deviation; }
-  void set_dio1_pin(GPIOPin *dio1_pin) { this->radio_.set_dio1_pin(dio1_pin); }
-  void set_frequency(uint32_t frequency) { this->requested_profile_.frequency = frequency; }
-  void set_sx1261(bool sx1261) { this->requested_profile_.sx1261 = sx1261; }
-  // Mode changes are ignored with a warning unless the radio is idle and configured.
+  void set_bandwidth(SX126xBw bandwidth) { this->bandwidth_ = bandwidth; }
+  void set_bitrate(uint32_t bitrate) { this->bitrate_ = bitrate; }
+  void set_busy_pin(GPIOPin *busy_pin) { this->busy_pin_ = busy_pin; }
+  void set_coding_rate(uint8_t coding_rate) { this->coding_rate_ = coding_rate; }
+  void set_crc_enable(bool crc_enable) { this->crc_enable_ = crc_enable; }
+  void set_crc_inverted(bool crc_inverted) { this->crc_inverted_ = crc_inverted; }
+  void set_crc_size(uint8_t crc_size) { this->crc_size_ = crc_size; }
+  void set_crc_polynomial(uint16_t crc_polynomial) { this->crc_polynomial_ = crc_polynomial; }
+  void set_crc_initial(uint16_t crc_initial) { this->crc_initial_ = crc_initial; }
+  void set_whitening_enable(bool whitening_enable) { this->whitening_enable_ = whitening_enable; }
+  void set_whitening_initial(uint16_t whitening_initial) { this->whitening_initial_ = whitening_initial; }
+  void set_deviation(uint32_t deviation) { this->deviation_ = deviation; }
+  void set_dio1_pin(GPIOPin *dio1_pin) { this->dio1_pin_ = dio1_pin; }
+  void set_frequency(uint32_t frequency) { this->frequency_ = frequency; }
+  void set_sx1261(bool sx1261) { this->sx1261_ = sx1261; }
   void set_mode_rx();
   void set_mode_tx();
   void set_mode_standby(SX126xStandbyMode mode);
   void set_mode_sleep(bool cold = false);
-  void set_modulation(uint8_t modulation) { this->requested_profile_.modulation = modulation; }
-  void set_pa_power(int8_t power) { this->requested_profile_.pa_power = power; }
-  void set_pa_ramp(uint8_t ramp) { this->requested_profile_.pa_ramp = ramp; }
-  void set_payload_length(uint8_t payload_length) { this->requested_profile_.payload_length = payload_length; }
-  void set_preamble_detect(uint16_t preamble_detect) { this->requested_profile_.preamble_detect = preamble_detect; }
-  void set_preamble_size(uint16_t preamble_size) { this->requested_profile_.preamble_size = preamble_size; }
-  void set_rst_pin(GPIOPin *rst_pin) { this->radio_.set_rst_pin(rst_pin); }
-  void set_rx_start(bool rx_start) { this->requested_profile_.rx_start = rx_start; }
-  void set_rf_switch(bool rf_switch) { this->requested_profile_.rf_switch = rf_switch; }
-  void set_shaping(uint8_t shaping) { this->requested_profile_.shaping = shaping; }
-  void set_spreading_factor(uint8_t spreading_factor) { this->requested_profile_.spreading_factor = spreading_factor; }
-  void set_sync_value(const std::vector<uint8_t> &sync_value) { this->requested_profile_.set_sync_value(sync_value); }
-  void set_tcxo_voltage(uint8_t tcxo_voltage) { this->requested_profile_.tcxo_voltage = tcxo_voltage; }
-  void set_tcxo_delay(uint32_t tcxo_delay) { this->requested_profile_.tcxo_delay = tcxo_delay; }
+  void set_modulation(uint8_t modulation) { this->modulation_ = modulation; }
+  void set_pa_power(int8_t power) { this->pa_power_ = power; }
+  void set_pa_ramp(uint8_t ramp) { this->pa_ramp_ = ramp; }
+  void set_payload_length(uint8_t payload_length) { this->payload_length_ = payload_length; }
+  void set_preamble_detect(uint16_t preamble_detect) { this->preamble_detect_ = preamble_detect; }
+  void set_preamble_size(uint16_t preamble_size) { this->preamble_size_ = preamble_size; }
+  void set_rst_pin(GPIOPin *rst_pin) { this->rst_pin_ = rst_pin; }
+  void set_rx_start(bool rx_start) { this->rx_start_ = rx_start; }
+  void set_rf_switch(bool rf_switch) { this->rf_switch_ = rf_switch; }
+  void set_shaping(uint8_t shaping) { this->shaping_ = shaping; }
+  void set_spreading_factor(uint8_t spreading_factor) { this->spreading_factor_ = spreading_factor; }
+  void set_sync_value(const std::vector<uint8_t> &sync_value) { this->sync_value_ = sync_value; }
+  void set_tcxo_voltage(uint8_t tcxo_voltage) { this->tcxo_voltage_ = tcxo_voltage; }
+  void set_tcxo_delay(uint32_t tcxo_delay) { this->tcxo_delay_ = tcxo_delay; }
   void run_image_cal();
-  // Mode changes and configuration are allowed during RX callbacks when the radio
-  // is available; they never modify the borrowed packet buffer.
   void configure();
   SX126xError transmit_packet(const uint8_t *data, size_t len);
   SX126xError transmit_packet(const std::vector<uint8_t> &packet) {
     return this->transmit_packet(packet.data(), packet.size());
   }
-  // Main-loop context only. SX126X_ERROR_NONE accepts one operation and promises one completion.
-  // Data is copied into the chip FIFO before return; listener must outlive completion.
-  // Pending RX rejects admission with BUSY and is delivered by a later loop().
-  // Timeout: 1..262143 ms. SPI/BUSY waits are synchronous; airtime is asynchronous.
-  [[nodiscard]] SX126xError start_transmit_async(SX126xTransmitListener *listener, const uint8_t *data, size_t len,
-                                                 uint32_t timeout_ms = 4000);
-  [[nodiscard]] SX126xError start_transmit_async(SX126xTransmitListener *listener, const std::vector<uint8_t> &packet,
-                                                 uint32_t timeout_ms = 4000) {
-    return this->start_transmit_async(listener, packet.data(), packet.size(), timeout_ms);
-  }
-  // Normal completion runs in loop(); cancellation completes synchronously in its caller.
-  // The radio is released before callbacks, which may start another operation if recovery
-  // succeeded. True accepts cancellation; the completion result reports cleanup failure.
-  bool cancel_transmit_async(SX126xTransmitListener *listener);
-  bool is_transmitting() const { return this->radio_.is_transmitting(); }
   void register_listener(SX126xListener *listener) { this->listeners_.push_back(listener); }
   Trigger<std::vector<uint8_t>, float, float> *get_packet_trigger() { return &this->packet_trigger_; }
 
- private:
-  static void IRAM_ATTR gpio_intr(SX126x *arg) { arg->enable_loop_soon_any_context(); }
-  void change_mode_(ModeCommand command, uint8_t arg = 0);
-  // The only place that runs user code for a radio operation: loop scheduling, then status,
-  // then the completion or packet listeners. SX126xRadio has already committed its state.
-  void apply_(const RadioEffects &effects);
-  void watch_configuration_();
-  SX126xError start_transmit_(SX126xTransmitListener *listener, const uint8_t *data, size_t len, uint32_t timeout_ms);
-  SX126xRadio radio_;
-  RadioProfile requested_profile_;
-  char version_[16]{};
+ protected:
+  static void gpio_intr(SX126x *arg);
+  void configure_fsk_ook_();
+  void configure_lora_();
+  void set_packet_params_(uint8_t payload_length);
+  uint8_t read_fifo_(uint8_t offset, std::vector<uint8_t> &packet);
+  void write_fifo_(uint8_t offset, const uint8_t *data, size_t len);
+  void write_opcode_(uint8_t opcode, uint8_t *data, uint8_t size);
+  uint8_t read_opcode_(uint8_t opcode, uint8_t *data, uint8_t size);
+  void write_register_(uint16_t reg, uint8_t *data, uint8_t size);
+  void read_register_(uint16_t reg, uint8_t *data, uint8_t size);
+  void call_listeners_(const std::vector<uint8_t> &packet, float rssi, float snr);
+  void wait_busy_();
   Trigger<std::vector<uint8_t>, float, float> packet_trigger_;
   std::vector<SX126xListener *> listeners_;
   std::vector<uint8_t> packet_;
-  bool rx_dispatching_{false};
-  bool cold_sleep_{false};
-  bool reconfigure_pending_{false};
+  std::vector<uint8_t> sync_value_;
+  GPIOPin *busy_pin_{nullptr};
+  GPIOPin *dio1_pin_{nullptr};
+  GPIOPin *rst_pin_{nullptr};
+  uint32_t bitrate_{0};
+  uint32_t deviation_{0};
+  uint32_t frequency_{0};
+  uint32_t payload_length_{0};
+  uint32_t tcxo_delay_{0};
+  uint16_t crc_polynomial_{0};
+  uint16_t crc_initial_{0};
+  uint16_t whitening_initial_{0};
+  uint16_t preamble_detect_{0};
+  uint16_t preamble_size_{0};
+  char version_[16];
+  SX126xBw bandwidth_{SX126X_BW_125000};
+  uint8_t crc_size_{0};
+  uint8_t tcxo_voltage_{0};
+  uint8_t coding_rate_{0};
+  uint8_t modulation_{PACKET_TYPE_LORA};
+  uint8_t pa_ramp_{0};
+  uint8_t shaping_{0};
+  uint8_t spreading_factor_{0};
+  int8_t pa_power_{0};
+  bool sx1261_{false};
+  bool crc_enable_{false};
+  bool crc_inverted_{false};
+  bool whitening_enable_{false};
+  bool rx_start_{false};
+  bool rf_switch_{false};
 };
 
 }  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_commands.cpp

@@ -1,355 +0,0 @@
-#include "sx126x_commands.h"
-#include "esphome/core/hal.h"
-#include "esphome/core/helpers.h"
-
-#include <cmath>
-#include <cstring>
-
-namespace esphome::sx126x {
-static constexpr uint16_t RAMP[8] PROGMEM = {10, 20, 40, 80, 200, 800, 1700, 3400};
-// Aligned 32 bit loads from flash are safe on ESP8266, so this table is read directly
-static constexpr uint32_t BW_HZ[31] PROGMEM = {4800,   5800,   7300,   9700,   11700,  14600,  19500,  23400,
-                                               29300,  39000,  46900,  58600,  78200,  93800,  117300, 156200,
-                                               187200, 234300, 312000, 373600, 467000, 7810,   10420,  15630,
-                                               20830,  31250,  41670,  62500,  125000, 250000, 500000};
-static constexpr uint8_t BW_LORA[10] PROGMEM = {LORA_BW_7810,   LORA_BW_10420, LORA_BW_15630, LORA_BW_20830,
-                                                LORA_BW_31250,  LORA_BW_41670, LORA_BW_62500, LORA_BW_125000,
-                                                LORA_BW_250000, LORA_BW_500000};
-static constexpr uint8_t BW_FSK[21] PROGMEM = {
-    FSK_BW_4800,   FSK_BW_5800,   FSK_BW_7300,   FSK_BW_9700,   FSK_BW_11700,  FSK_BW_14600,  FSK_BW_19500,
-    FSK_BW_23400,  FSK_BW_29300,  FSK_BW_39000,  FSK_BW_46900,  FSK_BW_58600,  FSK_BW_78200,  FSK_BW_93800,
-    FSK_BW_117300, FSK_BW_156200, FSK_BW_187200, FSK_BW_234300, FSK_BW_312000, FSK_BW_373600, FSK_BW_467000};
-
-// OCP (Over Current Protection) values
-static constexpr uint8_t OCP_80MA = 0x18;   // 80 mA max current
-static constexpr uint8_t OCP_140MA = 0x38;  // 140 mA max current
-
-// LoRa low data rate optimization threshold
-static constexpr float LOW_DATA_RATE_OPTIMIZE_THRESHOLD = 16.38f;  // 16.38 ms
-
-void SX126xCommands::read_opcode_(uint8_t opcode, uint8_t *data, uint8_t size) {
-  const uint8_t header[] = {opcode, 0};
-  this->spi_device_.read(header, {data, size});
-}
-
-void SX126xCommands::write_opcode_(uint8_t opcode, const uint8_t *data, uint8_t size) {
-  this->spi_device_.write({&opcode, 1}, {data, size});
-}
-
-void SX126xCommands::read_register_(uint16_t reg, uint8_t *data, uint8_t size) {
-  const uint8_t header[] = {RADIO_READ_REGISTER, static_cast<uint8_t>(reg >> 8), static_cast<uint8_t>(reg), 0};
-  this->spi_device_.read(header, {data, size});
-}
-
-void SX126xCommands::write_register_(uint16_t reg, const uint8_t *data, uint8_t size) {
-  const uint8_t header[] = {RADIO_WRITE_REGISTER, static_cast<uint8_t>(reg >> 8), static_cast<uint8_t>(reg)};
-  this->spi_device_.write(header, {data, size});
-}
-
-ConfigurationResult SX126xCommands::configure(const RadioProfile &profile, std::span<char, 16> version,
-                                              AppliedProfile &applied) {
-  applied.frequency = profile.frequency;
-  applied.payload_length = profile.payload_length;
-  applied.modulation = profile.modulation;
-  applied.rx_start = profile.rx_start;
-  encode_packet_params(profile, applied);
-  uint8_t buf[8];
-  // wakeup
-  this->read_opcode_(RADIO_GET_STATUS, nullptr, 0);
-
-  // config tcxo
-  if (profile.tcxo_voltage != TCXO_CTRL_NONE) {
-    uint32_t delay = profile.tcxo_delay >> 6;
-    buf[0] = profile.tcxo_voltage;
-    buf[1] = (delay >> 16) & 0xFF;
-    buf[2] = (delay >> 8) & 0xFF;
-    buf[3] = (delay >> 0) & 0xFF;
-    this->write_opcode_(RADIO_SET_TCXOMODE, buf, 4);
-    buf[0] = 0x7F;
-    this->write_opcode_(RADIO_CALIBRATE, buf, 1);
-  }
-
-  // clear errors
-  buf[0] = 0x00;
-  buf[1] = 0x00;
-  this->write_opcode_(RADIO_CLR_ERROR, buf, 2);
-
-  // rf switch
-  if (profile.rf_switch) {
-    buf[0] = 0x01;
-    this->write_opcode_(RADIO_SET_RFSWITCHMODE, buf, 1);
-  }
-
-  // check silicon version to make sure hw is ok
-  this->read_register_(REG_VERSION_STRING, reinterpret_cast<uint8_t *>(version.data()), version.size());
-  if (!this->spi_device_.ok()) {
-    return ConfigurationResult::CONFIGURATION_RESULT_BUSY_TIMEOUT;
-  }
-  version[version.size() - 1] = '\0';
-  if (strncmp(version.data(), "SX126", 5) != 0 && strncmp(version.data(), "LLCC68", 6) != 0) {
-    return ConfigurationResult::CONFIGURATION_RESULT_UNSUPPORTED;
-  }
-
-  // setup packet type
-  buf[0] = profile.modulation;
-  this->write_opcode_(RADIO_SET_PACKETTYPE, buf, 1);
-
-  // calibrate image
-  this->calibrate_image(profile.frequency);
-
-  // set frequency
-  uint64_t freq = ((uint64_t) profile.frequency << 25) / XTAL_FREQ;
-  buf[0] = (uint8_t) ((freq >> 24) & 0xFF);
-  buf[1] = (uint8_t) ((freq >> 16) & 0xFF);
-  buf[2] = (uint8_t) ((freq >> 8) & 0xFF);
-  buf[3] = (uint8_t) (freq & 0xFF);
-  this->write_opcode_(RADIO_SET_RFFREQUENCY, buf, 4);
-
-  // configure pa
-  int8_t pa_power = profile.pa_power;
-  if (profile.sx1261) {
-    // the following values were taken from section 13.1.14.1 table 13-21
-    // in rev 2.1 of the datasheet
-    if (pa_power == 15) {
-      uint8_t cfg[4] = {0x06, 0x00, 0x01, 0x01};
-      this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
-    } else {
-      uint8_t cfg[4] = {0x04, 0x00, 0x01, 0x01};
-      this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
-    }
-    pa_power = clamp(pa_power, (int8_t) -3, (int8_t) 14);
-    buf[0] = OCP_80MA;
-    this->write_register_(REG_OCP, buf, 1);
-  } else {
-    // the following values were taken from section 13.1.14.1 table 13-21
-    // in rev 2.1 of the datasheet
-    uint8_t cfg[4] = {0x04, 0x07, 0x00, 0x01};
-    this->write_opcode_(RADIO_SET_PACONFIG, cfg, 4);
-    pa_power = clamp(pa_power, (int8_t) -3, (int8_t) 22);
-    buf[0] = OCP_140MA;
-    this->write_register_(REG_OCP, buf, 1);
-  }
-  buf[0] = pa_power;
-  buf[1] = profile.pa_ramp;
-  this->write_opcode_(RADIO_SET_TXPARAMS, buf, 2);
-
-  // configure modem
-  if (profile.modulation == PACKET_TYPE_LORA) {
-    // set modulation params
-    float duration = 1000.0f * (1UL << profile.spreading_factor) / BW_HZ[profile.bandwidth];
-    buf[0] = profile.spreading_factor;
-    buf[1] = progmem_read_byte(&BW_LORA[profile.bandwidth - SX126X_BW_7810]);
-    buf[2] = profile.coding_rate;
-    buf[3] = (duration > LOW_DATA_RATE_OPTIMIZE_THRESHOLD) ? 0x01 : 0x00;
-    this->write_opcode_(RADIO_SET_MODULATIONPARAMS, buf, 4);
-
-    // set packet params and sync word
-    this->write_opcode_(RADIO_SET_PACKETPARAMS, applied.packet_params.data(), applied.packet_params_size);
-    if (profile.sync_size == 2) {
-      this->write_register_(REG_LORA_SYNCWORD, profile.sync_value.data(), profile.sync_size);
-    }
-  } else {
-    // set modulation params
-    uint32_t bitrate = ((uint64_t) XTAL_FREQ * 32) / profile.bitrate;
-    uint32_t fdev = ((uint64_t) profile.deviation << 25) / XTAL_FREQ;
-    buf[0] = (bitrate >> 16) & 0xFF;
-    buf[1] = (bitrate >> 8) & 0xFF;
-    buf[2] = (bitrate >> 0) & 0xFF;
-    buf[3] = profile.shaping;
-    buf[4] = progmem_read_byte(&BW_FSK[profile.bandwidth - SX126X_BW_4800]);
-    buf[5] = (fdev >> 16) & 0xFF;
-    buf[6] = (fdev >> 8) & 0xFF;
-    buf[7] = (fdev >> 0) & 0xFF;
-    this->write_opcode_(RADIO_SET_MODULATIONPARAMS, buf, 8);
-
-    // set crc params
-    if (profile.crc_enable) {
-      buf[0] = profile.crc_initial >> 8;
-      buf[1] = profile.crc_initial & 0xFF;
-      this->write_register_(REG_CRC_INITIAL, buf, 2);
-      buf[0] = profile.crc_polynomial >> 8;
-      buf[1] = profile.crc_polynomial & 0xFF;
-      this->write_register_(REG_CRC_POLYNOMIAL, buf, 2);
-    }
-
-    // set whitening params
-    if (profile.whitening_enable) {
-      // according to the datasheet, section 12 table 12-1 "The user should not
-      // change the value of the 7 MSB of this register"
-      this->read_register_(REG_WHITENING_INITIAL, buf, 1);
-      buf[0] = (buf[0] & 0xFE) | ((profile.whitening_initial >> 8) & 0x01);
-      buf[1] = profile.whitening_initial & 0xFF;
-      this->write_register_(REG_WHITENING_INITIAL, buf, 2);
-    }
-
-    // set packet params and sync word
-    this->write_opcode_(RADIO_SET_PACKETPARAMS, applied.packet_params.data(), applied.packet_params_size);
-    if (profile.sync_size != 0) {
-      this->write_register_(REG_GFSK_SYNCWORD, profile.sync_value.data(), profile.sync_size);
-    }
-  }
-
-  // switch to rx or sleep
-  if (profile.rx_start) {
-    this->receive();
-  } else {
-    this->sleep();
-  }
-  return this->spi_device_.ok() ? ConfigurationResult::CONFIGURATION_RESULT_OK
-                                : ConfigurationResult::CONFIGURATION_RESULT_BUSY_TIMEOUT;
-}
-
-void SX126xCommands::encode_packet_params(const RadioProfile &profile, AppliedProfile &applied) {
-  auto &buf = applied.packet_params;
-  const uint8_t payload_length = profile.max_packet_size();
-  if (profile.modulation == PACKET_TYPE_LORA) {
-    buf[0] = (profile.preamble_size >> 8) & 0xFF;
-    buf[1] = (profile.preamble_size >> 0) & 0xFF;
-    buf[2] = (profile.payload_length > 0) ? 0x01 : 0x00;
-    buf[3] = payload_length;
-    buf[4] = (profile.crc_enable) ? 0x01 : 0x00;
-    buf[5] = 0x00;
-    applied.packet_params_size = 6;
-  } else {
-    uint16_t preamble_size = profile.preamble_size * 8;
-    buf[0] = (preamble_size >> 8) & 0xFF;
-    buf[1] = (preamble_size >> 0) & 0xFF;
-    buf[2] = (profile.preamble_detect > 0) ? ((profile.preamble_detect - 1) | 0x04) : 0x00;
-    buf[3] = profile.sync_size * 8;
-    buf[4] = 0x00;
-    buf[5] = (profile.payload_length > 0) ? 0x00 : 0x01;
-    buf[6] = payload_length;
-    if (profile.crc_enable) {
-      buf[7] = (profile.crc_inverted ? 0x04 : 0x00) + (profile.crc_size & 0x02);
-    } else {
-      buf[7] = 0x01;
-    }
-    buf[8] = (profile.whitening_enable) ? 0x01 : 0x00;
-    applied.packet_params_size = 9;
-  }
-}
-
-void SX126xCommands::set_packet_length(AppliedProfile &applied, uint8_t length) {
-  applied.packet_params[applied.modulation == PACKET_TYPE_LORA ? 3 : 6] = length;
-  this->write_opcode_(RADIO_SET_PACKETPARAMS, applied.packet_params.data(), applied.packet_params_size);
-}
-
-void SX126xCommands::calibrate_image(uint32_t frequency) {
-  // the following values were taken from section 9.2.1 table 9-2
-  // in rev 2.1 of the datasheet
-  uint8_t buf[2] = {0, 0};
-  if (frequency > 900000000) {
-    buf[0] = 0xE1;
-    buf[1] = 0xE9;
-  } else if (frequency > 850000000) {
-    buf[0] = 0xD7;
-    buf[1] = 0xDB;
-  } else if (frequency > 770000000) {
-    buf[0] = 0xC1;
-    buf[1] = 0xC5;
-  } else if (frequency > 460000000) {
-    buf[0] = 0x75;
-    buf[1] = 0x81;
-  } else if (frequency > 425000000) {
-    buf[0] = 0x6B;
-    buf[1] = 0x6F;
-  }
-  if (buf[0] > 0 && buf[1] > 0) {
-    this->write_opcode_(RADIO_CALIBRATEIMAGE, buf, 2);
-  }
-}
-
-void SX126xCommands::receive() {
-  uint8_t buf[8];
-
-  // configure irq params
-  uint16_t irq = IRQ_RX_DONE | IRQ_RX_TX_TIMEOUT | IRQ_CRC_ERROR;
-  buf[0] = (irq >> 8) & 0xFF;
-  buf[1] = (irq >> 0) & 0xFF;
-  buf[2] = (irq >> 8) & 0xFF;
-  buf[3] = (irq >> 0) & 0xFF;
-  buf[4] = (IRQ_RADIO_NONE >> 8) & 0xFF;
-  buf[5] = (IRQ_RADIO_NONE >> 0) & 0xFF;
-  buf[6] = (IRQ_RADIO_NONE >> 8) & 0xFF;
-  buf[7] = (IRQ_RADIO_NONE >> 0) & 0xFF;
-  this->write_opcode_(RADIO_SET_DIOIRQPARAMS, buf, 8);
-
-  // set timeout to 0
-  buf[0] = 0x00;
-  this->write_opcode_(RADIO_SET_LORASYMBTIMEOUT, buf, 1);
-
-  // switch to continuous mode rx
-  buf[0] = 0xFF;
-  buf[1] = 0xFF;
-  buf[2] = 0xFF;
-  this->write_opcode_(RADIO_SET_RX, buf, 3);
-}
-
-void SX126xCommands::transmit(uint32_t timeout_ms) {
-  uint8_t buf[8];
-
-  // configure irq params
-  uint16_t irq = IRQ_TX_DONE | IRQ_RX_TX_TIMEOUT;
-  buf[0] = (irq >> 8) & 0xFF;
-  buf[1] = (irq >> 0) & 0xFF;
-  buf[2] = (irq >> 8) & 0xFF;
-  buf[3] = (irq >> 0) & 0xFF;
-  buf[4] = (IRQ_RADIO_NONE >> 8) & 0xFF;
-  buf[5] = (IRQ_RADIO_NONE >> 0) & 0xFF;
-  buf[6] = (IRQ_RADIO_NONE >> 8) & 0xFF;
-  buf[7] = (IRQ_RADIO_NONE >> 0) & 0xFF;
-  this->write_opcode_(RADIO_SET_DIOIRQPARAMS, buf, 8);
-
-  const uint32_t ticks = timeout_ms * 64;
-  buf[0] = ticks >> 16;
-  buf[1] = ticks >> 8;
-  buf[2] = ticks;
-  this->write_opcode_(RADIO_SET_TX, buf, 3);
-}
-
-void SX126xCommands::sleep(bool cold) {
-  // 0x04 = warm start (config retained), 0x00 = cold start (config lost, lowest power)
-  const uint8_t mode = cold ? 0x00 : 0x04;
-  this->write_opcode_(RADIO_SET_SLEEP, &mode, 1);
-}
-
-void SX126xCommands::standby(SX126xStandbyMode mode) {
-  const uint8_t value = mode;
-  this->write_opcode_(RADIO_SET_STANDBY, &value, 1);
-}
-
-uint32_t SX126xCommands::bandwidth_hz(SX126xBw bw) { return BW_HZ[bw]; }
-uint16_t SX126xCommands::ramp_us(uint8_t ramp) { return progmem_read_uint16(&RAMP[ramp]); }
-
-void SX126xCommands::clear_irqs(uint16_t mask) {
-  const uint8_t data[] = {static_cast<uint8_t>(mask >> 8), static_cast<uint8_t>(mask)};
-  this->write_opcode_(RADIO_CLR_IRQSTATUS, data, 2);
-}
-
-uint16_t SX126xCommands::read_irq() {
-  uint8_t data[2]{};
-  this->read_opcode_(RADIO_GET_IRQSTATUS, data, 2);
-  return (uint16_t(data[0]) << 8) | data[1];
-}
-
-void SX126xCommands::write_fifo(const uint8_t *data, size_t size) {
-  const uint8_t header[] = {RADIO_WRITE_BUFFER, 0};
-  this->spi_device_.write(header, {data, size});
-}
-
-void SX126xCommands::read_packet(uint8_t modulation, std::vector<uint8_t> &packet, float &rssi, float &snr) {
-  uint8_t data[3]{};
-  this->read_opcode_(RADIO_GET_PACKETSTATUS, data, 3);
-  rssi = (modulation == PACKET_TYPE_LORA ? data[0] : data[2]) / -2.0f;
-  // FSK packets report no SNR
-  snr = modulation == PACKET_TYPE_LORA ? static_cast<int8_t>(data[1]) / 4.0f : NAN;
-  this->read_opcode_(RADIO_GET_RXBUFFERSTATUS, data, 2);
-  if (!this->spi_device_.ok()) {
-    return;  // The length and offset were not read.
-  }
-  packet.resize(data[0]);
-  const uint8_t header[] = {RADIO_READ_BUFFER, data[1], 0};
-  this->spi_device_.read(header, packet);
-}
-
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_commands.h

@@ -1,49 +0,0 @@
-#pragma once
-#include "radio_profile.h"
-#include "sx126x_spi_device.h"
-#include <vector>
-
-namespace esphome::sx126x {
-enum class ConfigurationResult {
-  CONFIGURATION_RESULT_OK,
-  CONFIGURATION_RESULT_BUSY_TIMEOUT,
-  CONFIGURATION_RESULT_UNSUPPORTED
-};
-
-// Encodes chip commands. No ESPHome lifecycle, callbacks, or raw SPI access.
-// Commands record failure in the SPI device: callers start a sequence with begin()
-// and check ok() at its end, or before acting on a value that was read.
-class SX126xCommands {
- public:
-  SX126xCommands() = default;
-  SX126xCommands(const SX126xCommands &) = delete;
-  SX126xCommands &operator=(const SX126xCommands &) = delete;
-  SX126xSpiDevice &bus() { return this->spi_device_; }
-  // Fills applied as it goes; only use it if the result is OK.
-  [[nodiscard]] ConfigurationResult configure(const RadioProfile &profile, std::span<char, 16> version,
-                                              AppliedProfile &applied);
-  // Sets the payload length in the applied packet parameters and writes them.
-  void set_packet_length(AppliedProfile &applied, uint8_t length);
-  void calibrate_image(uint32_t frequency);
-  void standby(SX126xStandbyMode mode);
-  void receive();
-  void transmit(uint32_t timeout_ms = 0);
-  void sleep(bool cold = false);
-  void clear_irqs(uint16_t mask = 0xFFFF);
-  // Returns 0 if the read was skipped or failed.
-  uint16_t read_irq();
-  void write_fifo(const uint8_t *data, size_t size);
-  // Leaves the packet unchanged if a read fails.
-  void read_packet(uint8_t modulation, std::vector<uint8_t> &packet, float &rssi, float &snr);
-  static uint32_t bandwidth_hz(SX126xBw bw);
-  static uint16_t ramp_us(uint8_t ramp);
-
- private:
-  void read_opcode_(uint8_t opcode, uint8_t *data, uint8_t size);
-  void write_opcode_(uint8_t opcode, const uint8_t *data, uint8_t size);
-  void read_register_(uint16_t reg, uint8_t *data, uint8_t size);
-  void write_register_(uint16_t reg, const uint8_t *data, uint8_t size);
-  static void encode_packet_params(const RadioProfile &profile, AppliedProfile &applied);
-  SX126xSpiDevice spi_device_;
-};
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_radio.cpp

@@ -1,253 +0,0 @@
-#include "sx126x_radio.h"
-#include "esphome/core/log.h"
-#include <utility>
-
-namespace esphome::sx126x {
-
-// No ESP_LOG calls in this file: log listeners are user code, see sx126x_radio.h.
-
-static constexpr uint32_t RESET_DELAY_HIGH_US = 5000;
-static constexpr uint32_t RESET_DELAY_LOW_US = 2000;
-static constexpr uint32_t RECEIVE_RETRY_INTERVAL_MS = 200;
-
-RadioEffects SX126xRadio::comm_report(bool ok) {
-  RadioEffects effects;
-  effects.report = true;
-  effects.warning = ok ? nullptr : LOG_STR("Wait busy timeout");
-  return effects;
-}
-
-RadioEffects SX126xRadio::configure(const RadioProfile &requested, std::span<char, 16> version) {
-  ESPHOME_DEBUG_ASSERT(this->can_configure());
-  this->busy_ = true;
-  this->rx_retry_pending_ = false;
-  this->pending_irq_ = 0;
-  RadioEffects effects;
-  effects.report = true;
-  effects.warning = this->apply_configuration_(requested, version);
-  this->commit_(effects.warning == nullptr ? RadioState::RADIO_STATE_IDLE
-                                           : RadioState::RADIO_STATE_NEEDS_CONFIGURATION);
-  return effects;
-}
-
-const LogString *SX126xRadio::apply_configuration_(const RadioProfile &requested, std::span<char, 16> version) {
-  if (!requested.sync_valid) {
-    return LOG_STR("Invalid sync value");
-  }
-  this->rst_pin_->digital_write(true);
-  delayMicroseconds(RESET_DELAY_HIGH_US);
-  this->rst_pin_->digital_write(false);
-  delayMicroseconds(RESET_DELAY_LOW_US);
-  this->rst_pin_->digital_write(true);
-  delayMicroseconds(RESET_DELAY_HIGH_US);
-  this->bus().begin();
-  AppliedProfile applied;
-  switch (this->commands_.configure(requested, version, applied)) {
-    case ConfigurationResult::CONFIGURATION_RESULT_OK:
-      this->applied_ = applied;
-      return nullptr;
-    case ConfigurationResult::CONFIGURATION_RESULT_UNSUPPORTED:
-      return LOG_STR("Unsupported chip version");
-    default:
-      return LOG_STR("Wait busy timeout");
-  }
-}
-
-RadioEffects SX126xRadio::change_mode(ModeCommand command, uint8_t arg) {
-  ESPHOME_DEBUG_ASSERT(this->can_change_mode());
-  this->busy_ = true;
-  this->bus().begin();
-  switch (command) {
-    case ModeCommand::MODE_COMMAND_RX:
-      this->commands_.receive();
-      break;
-    case ModeCommand::MODE_COMMAND_TX:
-      this->commands_.transmit();
-      break;
-    case ModeCommand::MODE_COMMAND_STANDBY:
-      this->commands_.standby(static_cast<SX126xStandbyMode>(arg));
-      break;
-    case ModeCommand::MODE_COMMAND_SLEEP:
-    case ModeCommand::MODE_COMMAND_COLD_SLEEP:
-      this->commands_.sleep(command == ModeCommand::MODE_COMMAND_COLD_SLEEP);
-      break;
-    case ModeCommand::MODE_COMMAND_IMAGE_CAL:
-      this->commands_.calibrate_image(this->applied_.frequency);
-      break;
-  }
-  const bool ok = this->bus().ok();
-  // Cold sleep loses the configuration, and a failed command leaves the chip state unknown.
-  this->commit_(ok && command != ModeCommand::MODE_COMMAND_COLD_SLEEP ? RadioState::RADIO_STATE_IDLE
-                                                                      : RadioState::RADIO_STATE_NEEDS_CONFIGURATION);
-  return comm_report(ok);
-}
-
-RadioEffects SX126xRadio::start_transmit(SX126xTransmitListener *listener, const uint8_t *data, size_t len,
-                                         uint32_t timeout_ms) {
-  RadioEffects effects;
-  if (this->state_ == RadioState::RADIO_STATE_NEEDS_CONFIGURATION) {
-    effects.result = SX126xError::SX126X_ERROR_NOT_READY;
-    return effects;
-  }
-  if (this->busy_ || this->state_ != RadioState::RADIO_STATE_IDLE) {
-    effects.result = SX126xError::SX126X_ERROR_BUSY;
-    return effects;
-  }
-  const uint8_t fixed_length = this->applied_.payload_length;
-  if (data == nullptr || len == 0 || len > this->max_packet_size() || (fixed_length != 0 && len != fixed_length)) {
-    effects.result = SX126xError::SX126X_ERROR_INVALID_PARAMS;
-    return effects;
-  }
-  this->busy_ = true;
-  this->bus().begin();
-  this->commands_.standby(STDBY_XOSC);
-  // RX cannot advance in standby. Keep a packet that completed before standby intact for
-  // poll(), before clearing IRQs or overwriting the shared FIFO. A failed read returns 0.
-  // A packet that failed its CRC is not delivered, so it does not hold up the send.
-  const uint16_t irq = this->commands_.read_irq() | this->pending_irq_;
-  if ((irq & IRQ_RX_DONE) && !(irq & IRQ_CRC_ERROR)) {
-    this->commit_(RadioState::RADIO_STATE_HOLDING_RX);
-    effects.result = SX126xError::SX126X_ERROR_BUSY;
-    return effects;
-  }
-  this->commands_.clear_irqs();
-  this->pending_irq_ = 0;
-  if (fixed_length == 0) {
-    this->commands_.set_packet_length(this->applied_, len);
-  }
-  this->commands_.write_fifo(data, len);
-  this->commands_.transmit(timeout_ms);
-  if (!this->bus().ok()) {
-    const bool restored = this->restore_();
-    this->commit_(restored ? RadioState::RADIO_STATE_IDLE : RadioState::RADIO_STATE_NEEDS_CONFIGURATION);
-    effects = comm_report(restored);
-    effects.result = SX126xError::SX126X_ERROR_BUSY_TIMEOUT;
-    return effects;
-  }
-  this->tx_ = {listener, millis(), timeout_ms};
-  this->commit_(RadioState::RADIO_STATE_TRANSMITTING);
-  // No status report on success, so no user code runs before the caller has the result.
-  // The completion reports status instead.
-  return effects;
-}
-
-RadioEffects SX126xRadio::poll_transmit(uint32_t now) {
-  if (this->busy_ || !this->is_transmitting()) {
-    return {};
-  }
-  bool done = false;
-  SX126xError outcome = SX126xError::SX126X_ERROR_NONE;
-  if (this->dio1_pin_->digital_read()) {
-    this->busy_ = true;
-    this->bus().begin();
-    const uint16_t status = this->commands_.read_irq();
-    this->commands_.clear_irqs(status);
-    this->busy_ = false;
-    if (!this->bus().ok()) {
-      outcome = SX126xError::SX126X_ERROR_BUSY_TIMEOUT;
-      done = true;
-    } else if (status & IRQ_RX_TX_TIMEOUT) {
-      outcome = SX126xError::SX126X_ERROR_TIMEOUT;
-      done = true;
-    } else if (status & IRQ_TX_DONE) {
-      done = true;
-    }
-  }
-  // A cached loop tick can precede admission; signed subtraction also handles wraparound.
-  if (!done && static_cast<int32_t>(now - this->tx_.started_ms) >= static_cast<int32_t>(this->tx_.timeout_ms)) {
-    outcome = SX126xError::SX126X_ERROR_TIMEOUT;
-    done = true;
-  }
-  return done ? this->finish_transmit_(outcome) : RadioEffects{};
-}
-
-RadioEffects SX126xRadio::cancel_transmit(SX126xTransmitListener *listener) {
-  if (this->busy_ || !this->is_transmitting() || listener == nullptr || listener != this->tx_.listener) {
-    return {};
-  }
-  return this->finish_transmit_(SX126xError::SX126X_ERROR_CANCELLED);
-}
-
-// The only place a send ends.
-RadioEffects SX126xRadio::finish_transmit_(SX126xError result) {
-  this->busy_ = true;
-  const bool restored = this->restore_();
-  this->commit_(restored ? RadioState::RADIO_STATE_IDLE : RadioState::RADIO_STATE_NEEDS_CONFIGURATION);
-  RadioEffects effects = comm_report(restored);
-  effects.result = restored ? result : SX126xError::SX126X_ERROR_BUSY_TIMEOUT;
-  effects.listener = std::exchange(this->tx_.listener, nullptr);
-  effects.finished = true;
-  return effects;
-}
-
-bool SX126xRadio::restore_() {
-  this->bus().begin();
-  this->commands_.standby(STDBY_XOSC);
-  this->commands_.clear_irqs();
-  if (this->applied_.payload_length == 0) {
-    this->commands_.set_packet_length(this->applied_, this->max_packet_size());
-  }
-  if (this->applied_.rx_start) {
-    this->commands_.receive();
-  } else {
-    this->commands_.sleep();
-  }
-  return this->bus().ok();
-}
-
-RadioEffects SX126xRadio::poll(uint32_t now, std::vector<uint8_t> &packet) {
-  if (this->busy_) {
-    return {};
-  }
-  if (this->is_transmitting()) {
-    return this->poll_transmit(now);
-  }
-  RadioEffects effects;
-  if (this->state_ == RadioState::RADIO_STATE_NEEDS_CONFIGURATION) {
-    effects.sleep_loop = true;  // Polling cannot recover the radio; configure() can.
-    return effects;
-  }
-  if (this->rx_retry_pending_ && now - this->rx_retry_started_ms_ < RECEIVE_RETRY_INTERVAL_MS) {
-    return effects;
-  }
-  const bool holding = this->state_ == RadioState::RADIO_STATE_HOLDING_RX;
-  if (!holding && this->pending_irq_ == 0 && !this->dio1_pin_->digital_read()) {
-    effects.sleep_loop = this->dio1_pin_->is_internal();  // Its interrupt wakes the loop.
-    return effects;
-  }
-  return this->receive_(holding, now, packet);
-}
-
-RadioEffects SX126xRadio::receive_(bool holding, uint32_t now, std::vector<uint8_t> &packet) {
-  this->busy_ = true;
-  this->bus().begin();
-  // A packet whose read failed has had its flags cleared, so they are kept until it is read.
-  const uint16_t status = this->commands_.read_irq() | this->pending_irq_;
-  const bool received = (status & IRQ_RX_DONE) && !(status & IRQ_CRC_ERROR);
-  if (!holding) {
-    // Cleared before the read, so a packet that completes during the read raises DIO1 again.
-    // A held packet keeps its IRQ until restoration.
-    this->commands_.clear_irqs(status);
-  }
-  float rssi = 0, snr = 0;
-  if (received) {
-    this->commands_.read_packet(this->applied_.modulation, packet, rssi, snr);
-  }
-  const bool read = this->bus().ok();
-  this->pending_irq_ = read ? 0 : status;
-  // Do not spend a BUSY timeout on every loop while a read keeps failing.
-  this->rx_retry_pending_ = !read;
-  this->rx_retry_started_ms_ = now;
-  RadioState next = this->state_;
-  if (read && holding) {
-    next = this->restore_() ? RadioState::RADIO_STATE_IDLE : RadioState::RADIO_STATE_NEEDS_CONFIGURATION;
-  }
-  this->commit_(next);
-  RadioEffects effects = comm_report(read && next != RadioState::RADIO_STATE_NEEDS_CONFIGURATION);
-  effects.received = read && received;
-  effects.rssi = rssi;
-  effects.snr = snr;
-  return effects;
-}
-
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_radio.h

@@ -1,149 +0,0 @@
-#pragma once
-
-#include "radio_profile.h"
-#include "sx126x_commands.h"
-#include "esphome/core/hal.h"
-#include "esphome/core/log.h"
-#include <span>
-#include <vector>
-
-namespace esphome::sx126x {
-
-enum class SX126xError {
-  SX126X_ERROR_NONE = 0,
-  SX126X_ERROR_TIMEOUT,
-  SX126X_ERROR_INVALID_PARAMS,
-  SX126X_ERROR_NOT_READY,
-  SX126X_ERROR_BUSY_TIMEOUT,
-  SX126X_ERROR_BUSY,
-  SX126X_ERROR_CANCELLED
-};
-
-class SX126xTransmitListener {
- public:
-  virtual void on_transmit_complete(SX126xError result) = 0;
-};
-
-// Who may use the radio between operations. This is driver state, not the chip's mode.
-enum class RadioState : uint8_t {
-  // Startup, cold sleep, or a failed configuration, mode command or restoration. Only
-  // configure() is accepted; sends return NOT_READY and the loop sleeps. SX126x configures
-  // again every second after a failure, and on the next mode command after cold sleep.
-  RADIO_STATE_NEEDS_CONFIGURATION,
-  // Available. The chip is receiving or sleeping, as configured, or after the TX mode command
-  // sending whatever the FIFO holds. That send is not tracked: a send or mode command may cut
-  // it short, and poll() clears its TX_DONE as a flag without a packet.
-  RADIO_STATE_IDLE,
-  // A send is on air. SPI is free between polls; only polling and cancellation are accepted.
-  RADIO_STATE_TRANSMITTING,
-  // Standby with a received packet left in the FIFO, found when a send entered standby.
-  // The send was rejected with BUSY; the next poll() delivers the packet and restores the
-  // radio. configure() may discard it to recover from repeated read failures.
-  RADIO_STATE_HOLDING_RX,
-};
-
-enum class ModeCommand : uint8_t {
-  MODE_COMMAND_RX,
-  MODE_COMMAND_TX,
-  MODE_COMMAND_STANDBY,
-  MODE_COMMAND_SLEEP,
-  MODE_COMMAND_COLD_SLEEP,
-  MODE_COMMAND_IMAGE_CAL,
-};
-
-// What a radio operation leaves for its caller to do. The radio has already committed its
-// state; the caller reports status first, then calls the listener or delivers the packet.
-struct RadioEffects {
-  SX126xError result{SX126xError::SX126X_ERROR_NONE};
-  // The completion to notify when finished is set; null for a blocking send.
-  SX126xTransmitListener *listener{nullptr};
-  // With report set: the warning to set, or null to clear it.
-  const LogString *warning{nullptr};
-  float rssi{0};
-  float snr{0};
-  bool report{false};
-  // A send ended, and result is its outcome.
-  bool finished{false};
-  // The packet buffer holds a packet to deliver.
-  bool received{false};
-  // Nothing to poll until the next DIO1 edge or configuration.
-  bool sleep_loop{false};
-};
-
-// Owns the radio state and every SPI command sequence.
-//
-// Status reports, completions and packet listeners can run user code, which may call back
-// into the driver. Every operation therefore does its SPI work with busy() set, commits the
-// next state, and returns RadioEffects; SX126x::apply_() then reports status and calls the
-// listeners. This class has no access to component status or listeners, so callbacks only
-// ever see a committed state. Do not log here either: log listeners are user code. busy()
-// covers re-entry during a sequence, for example from a GPIO pin that logs.
-//
-// Each sequence starts with bus().begin(); after a BUSY timeout the rest is skipped and
-// bus().ok() is false. A failed send preparation restores the radio in a new sequence. A
-// failed restoration needs configuration, and its result overrides the send result. A
-// successful send start reports nothing, so no user code runs before the caller has the
-// result. Every send ends in finish_transmit_(), exactly once.
-//
-// A failed receive read keeps the packet and retries after RECEIVE_RETRY_INTERVAL_MS, so a
-// stuck BUSY line does not cost a 20 ms wait on every loop.
-class SX126xRadio {
- public:
-  SX126xRadio() = default;
-  SX126xRadio(const SX126xRadio &) = delete;
-  SX126xRadio &operator=(const SX126xRadio &) = delete;
-  SX126xSpiDevice &bus() { return this->commands_.bus(); }
-  void set_dio1_pin(GPIOPin *pin) { this->dio1_pin_ = pin; }
-  void set_rst_pin(GPIOPin *pin) { this->rst_pin_ = pin; }
-  GPIOPin *get_dio1_pin() const { return this->dio1_pin_; }
-  GPIOPin *get_rst_pin() const { return this->rst_pin_; }
-  RadioState state() const { return this->state_; }
-  bool busy() const { return this->busy_; }
-  bool is_transmitting() const { return this->state_ == RadioState::RADIO_STATE_TRANSMITTING; }
-  // A held packet may be discarded: explicit reconfiguration is the recovery path.
-  bool can_configure() const { return !this->busy_ && !this->is_transmitting(); }
-  bool can_change_mode() const { return !this->busy_ && this->state_ == RadioState::RADIO_STATE_IDLE; }
-  size_t max_packet_size() const { return this->applied_.max_packet_size(); }
-
-  // Requires can_configure(). Resets the chip and applies the requested profile.
-  RadioEffects configure(const RadioProfile &requested, std::span<char, 16> version);
-  // Requires can_change_mode(). Cold sleep and failed commands need configuration afterwards.
-  RadioEffects change_mode(ModeCommand command, uint8_t arg);
-  // Result SX126X_ERROR_NONE starts a send that finishes exactly once, through poll_transmit() or
-  // cancel_transmit(). Any other result owes no completion.
-  RadioEffects start_transmit(SX126xTransmitListener *listener, const uint8_t *data, size_t len, uint32_t timeout_ms);
-  // Sets finished only when it ended the current send.
-  RadioEffects poll_transmit(uint32_t now);
-  // Sets finished only if listener owns the current send.
-  RadioEffects cancel_transmit(SX126xTransmitListener *listener);
-  // One loop step: polls a send, or reads a received packet into packet.
-  RadioEffects poll(uint32_t now, std::vector<uint8_t> &packet);
-
- private:
-  struct TxOperation {
-    SX126xTransmitListener *listener{nullptr};
-    uint32_t started_ms{0};
-    uint32_t timeout_ms{0};
-  };
-  void commit_(RadioState state) {
-    this->state_ = state;
-    this->busy_ = false;
-  }
-  static RadioEffects comm_report(bool ok);
-  const LogString *apply_configuration_(const RadioProfile &requested, std::span<char, 16> version);
-  bool restore_();
-  RadioEffects finish_transmit_(SX126xError result);
-  RadioEffects receive_(bool holding, uint32_t now, std::vector<uint8_t> &packet);
-  SX126xCommands commands_;
-  AppliedProfile applied_;
-  TxOperation tx_;
-  uint32_t rx_retry_started_ms_{0};
-  uint16_t pending_irq_{0};  // flags of a received packet whose read failed after they were cleared
-  GPIOPin *dio1_pin_{nullptr};
-  GPIOPin *rst_pin_{nullptr};
-  RadioState state_{RadioState::RADIO_STATE_NEEDS_CONFIGURATION};
-  bool busy_{false};
-  bool rx_retry_pending_{false};
-};
-
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_spi_device.cpp

@@ -1,45 +0,0 @@
-#include "sx126x_spi_device.h"
-#include "esphome/core/hal.h"
-
-namespace esphome::sx126x {
-
-static constexpr uint32_t BUSY_TIMEOUT_MS = 20;
-static constexpr uint32_t SWITCHING_DELAY_US = 1;
-
-void SX126xSpiDevice::exchange_(std::span<const uint8_t> header, std::span<const uint8_t> tx, std::span<uint8_t> rx) {
-  if (!this->ok_) {
-    return;
-  }
-  // Selecting first wakes a sleeping radio. The guard releases CS even on timeout.
-  Selection selected(this->device_);
-  const uint32_t start = millis();
-  while (this->busy_pin_->digital_read()) {
-    if (millis() - start > BUSY_TIMEOUT_MS) {
-      this->ok_ = false;
-      return;
-    }
-  }
-  for (auto byte : header) {
-    this->device_.transfer_byte(byte);
-  }
-  for (auto byte : tx) {
-    this->device_.transfer_byte(byte);
-  }
-  for (auto &byte : rx) {
-    byte = this->device_.transfer_byte(0);
-  }
-}
-
-void SX126xSpiDevice::write(std::span<const uint8_t> header, std::span<const uint8_t> data) {
-  this->exchange_(header, data, {});
-  if (this->ok_) {
-    // This delay belongs after CS is released, not in the selected interval.
-    delayMicroseconds(SWITCHING_DELAY_US);
-  }
-}
-
-void SX126xSpiDevice::read(std::span<const uint8_t> header, std::span<uint8_t> data) {
-  this->exchange_(header, {}, data);
-}
-
-}  // namespace esphome::sx126x

esphome/components/sx126x/sx126x_spi_device.h

@@ -1,63 +0,0 @@
-#pragma once
-
-#include "esphome/components/spi/spi.h"
-#include <span>
-
-namespace esphome::sx126x {
-
-// Persistent radio device. read()/write() use exchange_() for one complete selected interval.
-// No raw SPI access escapes. Call only from the main loop; spans are borrowed until return.
-// Failures stick: after a BUSY timeout every exchange is skipped until the next begin(),
-// so a command sequence checks ok() once instead of after every command.
-class SX126xSpiDevice {
- public:
-  SX126xSpiDevice() = default;
-  SX126xSpiDevice(const SX126xSpiDevice &) = delete;
-  SX126xSpiDevice &operator=(const SX126xSpiDevice &) = delete;
-  void set_spi_parent(spi::SPIComponent *parent) { this->device_.set_spi_parent(parent); }
-  void set_cs_pin(GPIOPin *pin) { this->device_.set_cs_pin(pin); }
-  void set_data_rate(uint32_t rate) { this->device_.set_data_rate(rate); }
-  void set_mode(spi::SPIMode mode) { this->device_.set_mode(mode); }
-  void set_bit_order(spi::SPIBitOrder order) { this->device_.set_bit_order(order); }
-  void set_release_device(bool release) { this->device_.set_release_device(release); }
-  void set_write_only(bool write_only) { this->device_.set_write_only(write_only); }
-#ifdef USE_SPI_PSRAM_DMA
-  void set_psram_dma(bool enable) { this->device_.set_psram_dma(enable); }
-#endif
-
-  void set_busy_pin(GPIOPin *pin) { this->busy_pin_ = pin; }
-  GPIOPin *get_busy_pin() const { return this->busy_pin_; }
-  GPIOPin *get_cs_pin() const { return this->device_.get_cs_pin(); }
-  void setup() { this->device_.spi_setup(); }
-  void teardown() { this->device_.spi_teardown(); }
-  // Starts a command sequence with no recorded failure.
-  void begin() { this->ok_ = true; }
-  // False once any exchange since begin() timed out waiting for BUSY.
-  bool ok() const { return this->ok_; }
-  void write(std::span<const uint8_t> header, std::span<const uint8_t> data);
-  // Leaves data unchanged when the exchange is skipped or times out.
-  void read(std::span<const uint8_t> header, std::span<uint8_t> data);
-
- private:
-  class Device final : public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW,
-                                             spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_8MHZ> {
-   public:
-    GPIOPin *get_cs_pin() const { return this->cs_; }
-  };
-  class Selection {
-   public:
-    explicit Selection(Device &device) : device_(device) { this->device_.enable(); }
-    ~Selection() { this->device_.disable(); }
-    Selection(const Selection &) = delete;
-    Selection &operator=(const Selection &) = delete;
-
-   private:
-    Device &device_;
-  };
-  void exchange_(std::span<const uint8_t> header, std::span<const uint8_t> tx, std::span<uint8_t> rx);
-  Device device_;
-  GPIOPin *busy_pin_{nullptr};
-  bool ok_{true};
-};
-
-}  // namespace esphome::sx126x

esphome/components/whirlpool/climate.py

@@ -5,15 +5,13 @@ from esphome.const import CONF_MODEL
 from esphome.types import ConfigType
 
 AUTO_LOAD = ["climate_ir"]
-CODEOWNERS = ["@glmnet", "@arpena", "@Rodrigoah"]
+CODEOWNERS = ["@glmnet", "@arpena"]
 
 whirlpool_ns = cg.esphome_ns.namespace("whirlpool")
 WhirlpoolClimate = whirlpool_ns.class_("WhirlpoolClimate", climate_ir.ClimateIR)
 
 Model = whirlpool_ns.enum("Model")
-MODELS = Model.options(
-    "DG11J1-3A", "DG11J1-91", "HISENSE_ARG", "HITACHI_HCRA31NEWH", prefix="MODEL_"
-)
+MODELS = Model.options("DG11J1-3A", "DG11J1-91", "HISENSE_ARG", prefix="MODEL_")
 
 CONFIG_SCHEMA = climate_ir.climate_ir_with_receiver_schema(WhirlpoolClimate).extend(
     {
@@ -28,5 +26,3 @@ async def to_code(config: ConfigType) -> None:
     # cv.enum keeps the YAML key as a str subclass; the MockObj value cannot be compared
     if config[CONF_MODEL] == "HISENSE_ARG":
         cg.add_define("USE_WHIRLPOOL_HISENSE_ARG")
-    elif config[CONF_MODEL] == "HITACHI_HCRA31NEWH":
-        cg.add_define("USE_WHIRLPOOL_HITACHI_HCRA31NEWH")

esphome/components/whirlpool/whirlpool.cpp

@@ -2,8 +2,6 @@
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 
-#include <algorithm>
-
 namespace esphome::whirlpool {
 
 ESPHOME_LOG_TAG(TAG, "whirlpool.climate");
@@ -46,17 +44,6 @@ static constexpr uint8_t HISENSE_ARG_POWER_TOGGLE = 0x01;   // byte 15
 static constexpr uint8_t HISENSE_ARG_SETTINGS_ONLY = 0x02;  // byte 15
 static constexpr uint8_t HISENSE_ARG_FIXED_TEMP_STEP = 7;   // auto and fan-only send 23 C
 
-// Hitachi HCRA31NEWH model: power is a state in every frame
-static constexpr uint8_t HITACHI_BYTE10 = 0x20;      // byte 10
-static constexpr uint8_t HITACHI_COOL = 0x02;        // byte 15
-static constexpr uint8_t HITACHI_OFF = 0x01;         // byte 15
-static constexpr uint8_t HITACHI_BYTE18_ON = 0x38;   // byte 18
-static constexpr uint8_t HITACHI_BYTE18_OFF = 0x28;  // byte 18
-static constexpr uint8_t HITACHI_BYTE19 = 0x08;      // byte 19
-
-// Header, 21 bytes of 8 bits, two dividers and the footer mark
-static constexpr uint32_t WHIRLPOOL_FRAME_TIMINGS = 2 + WHIRLPOOL_STATE_LENGTH * 16 + 2 * 2 + 1;
-
 WhirlpoolClimate::WhirlpoolClimate()
     : climate_ir::ClimateIR(
           WHIRLPOOL_DG11J1_3A_TEMP_MIN, WHIRLPOOL_DG11J1_3A_TEMP_MAX, 1.0f, true, true,
@@ -68,19 +55,19 @@ void WhirlpoolClimate::transmit_state() {
   this->last_transmit_time_ = millis();  // setting the time of the last transmission.
   uint8_t remote_state[WHIRLPOOL_STATE_LENGTH];
   memset(remote_state, 0, sizeof(remote_state));
-  put_be16(remote_state, this->remote_id_());
+  remote_state[0] = 0x83;
+  remote_state[1] = 0x06;
   remote_state[6] = 0x80;
-  remote_state[18] = 0x08;
+  remote_state[18] = 0x08;  // the same on every supported model
 
-  const bool powered_on = this->mode != climate::CLIMATE_MODE_OFF;
-  // Hitachi sends power as a state instead of a toggle
-  const bool power_toggle = !this->is_hitachi_hcra31newh_() && powered_on != this->powered_on_assumed;
+  auto powered_on = this->mode != climate::CLIMATE_MODE_OFF;
+  const bool power_toggle = powered_on != this->powered_on_assumed;
   if (power_toggle) {
     // Set power toggle command
     remote_state[2] = 4;
     remote_state[15] = 1;
+    this->powered_on_assumed = powered_on;
   }
-  this->powered_on_assumed = powered_on;
   switch (this->mode) {
     case climate::CLIMATE_MODE_HEAT_COOL:
       // set fan auto
@@ -106,10 +93,6 @@ void WhirlpoolClimate::transmit_state() {
       remote_state[15] = 6;
       break;
     case climate::CLIMATE_MODE_OFF:
-      // These remotes keep the cool code in the power-off frame
-      if (this->is_hisense_arg_() || this->is_hitachi_hcra31newh_())
-        remote_state[3] = WHIRLPOOL_COOL;
-      break;
     default:
       break;
   }
@@ -119,7 +102,6 @@ void WhirlpoolClimate::transmit_state() {
   // Temperature
   auto temp = (uint8_t) roundf(clamp(this->target_temperature, this->temperature_min_(), this->temperature_max_()));
   const auto temp_step = (uint8_t) (temp - this->temperature_min_());
-  this->target_temperature = temp;  // publish what the unit was sent
   if (hisense_arg && this->fixed_temp_mode_()) {
     remote_state[3] |= HISENSE_ARG_FIXED_TEMP_STEP << 4;
   } else {
@@ -149,6 +131,7 @@ void WhirlpoolClimate::transmit_state() {
       remote_state[2] |= WHIRLPOOL_SWING_MASK;
       remote_state[8] = WHIRLPOOL_SWING_BYTE8;
     }
+    this->encode_hisense_arg_(remote_state, power_toggle, temp_step);
   } else if (this->send_swing_cmd_) {
     if (this->swing_mode == climate::CLIMATE_SWING_VERTICAL || this->swing_mode == climate::CLIMATE_SWING_OFF) {
       remote_state[2] |= WHIRLPOOL_SWING_MASK;
@@ -156,11 +139,6 @@ void WhirlpoolClimate::transmit_state() {
     }
   }
 
-  if (hisense_arg)
-    this->encode_hisense_arg_(remote_state, power_toggle, temp_step);
-  if (this->is_hitachi_hcra31newh_())
-    this->encode_hitachi_hcra31newh_(remote_state);
-
   // Checksum
   remote_state[13] = xor_bytes(&remote_state[2], 11, remote_state[13]);
   remote_state[20] = xor_bytes(&remote_state[14], 6, remote_state[20]);
@@ -170,7 +148,6 @@ void WhirlpoolClimate::transmit_state() {
   // Send code
   auto transmit = this->transmitter_->transmit();
   auto *data = transmit.get_data();
-  data->reserve(WHIRLPOOL_FRAME_TIMINGS);
 
   data->set_carrier_frequency(38000);
 
@@ -203,6 +180,10 @@ void WhirlpoolClimate::encode_hisense_arg_(uint8_t *remote_state, bool power_tog
   remote_state[15] = power_toggle ? HISENSE_ARG_POWER_TOGGLE : HISENSE_ARG_SETTINGS_ONLY;
 
   switch (this->mode) {
+    case climate::CLIMATE_MODE_OFF:
+      // The remote keeps the cool code in the power-off frame
+      remote_state[3] = (remote_state[3] & 0xF0) | WHIRLPOOL_COOL;
+      break;
     case climate::CLIMATE_MODE_DRY:
       // The unit runs these fan speeds itself; the user's choice is kept for the next mode change
       remote_state[2] &= ~WHIRLPOOL_FAN_MASK;
@@ -231,27 +212,6 @@ void WhirlpoolClimate::encode_hisense_arg_(uint8_t *remote_state, bool power_tog
 #endif
 }
 
-void WhirlpoolClimate::encode_hitachi_hcra31newh_(uint8_t *remote_state) const {
-#ifdef USE_WHIRLPOOL_HITACHI_HCRA31NEWH
-  remote_state[10] = HITACHI_BYTE10;
-  remote_state[18] = HITACHI_BYTE18_ON;
-  remote_state[19] = HITACHI_BYTE19;
-  // The unit takes the whole state from every frame: only the off frame carries the power bit
-  switch (this->mode) {
-    case climate::CLIMATE_MODE_COOL:
-      remote_state[15] = HITACHI_COOL;
-      break;
-    case climate::CLIMATE_MODE_OFF:
-      remote_state[2] |= WHIRLPOOL_POWER;
-      remote_state[15] = HITACHI_OFF;
-      remote_state[18] = HITACHI_BYTE18_OFF;
-      break;
-    default:
-      break;
-  }
-#endif
-}
-
 bool WhirlpoolClimate::on_receive(remote_base::RemoteReceiveData data) {
   // Check if the esp isn't currently transmitting.
   if (millis() - this->last_transmit_time_ < 500) {
@@ -274,8 +234,7 @@ bool WhirlpoolClimate::on_receive(remote_base::RemoteReceiveData data) {
       if (!data.expect_item(WHIRLPOOL_BIT_MARK, WHIRLPOOL_GAP))
         return false;
     }
-    // The Hitachi remote always sends all 21 bytes; byte 18 holds its power state
-    if (i == WHIRLPOOL_SECOND_DIVIDER && !data.is_valid() && !this->is_hitachi_hcra31newh_()) {
+    if (i == WHIRLPOOL_SECOND_DIVIDER && !data.is_valid()) {
       // Remote control only sent 14 bytes, nothing more to read, not even the footer
       ESP_LOGV(TAG, "Remote control only sent %d bytes", i);
       skip_footer = true;
@@ -302,18 +261,13 @@ bool WhirlpoolClimate::on_receive(remote_base::RemoteReceiveData data) {
   ESP_LOGV_HEX(TAG, remote_state, WHIRLPOOL_STATE_LENGTH, WHIRLPOOL_STATE_LENGTH, "Received: %s");
 
   // verify header remote code
-  if (encode_uint16(remote_state[0], remote_state[1]) != this->remote_id_())
+  if (remote_state[0] != 0x83 || remote_state[1] != 0x06)
     return false;
 
   // powr on/off button
   ESP_LOGV(TAG, "Power: %02X", (remote_state[2] & WHIRLPOOL_POWER));
 
-  if (this->is_hitachi_hcra31newh_()) {
-    // Power is a state: byte 18 says whether the unit is off
-    this->powered_on_assumed = remote_state[18] != HITACHI_BYTE18_OFF;
-    if (!this->powered_on_assumed)
-      this->mode = climate::CLIMATE_MODE_OFF;
-  } else if ((remote_state[2] & WHIRLPOOL_POWER) == WHIRLPOOL_POWER) {
+  if ((remote_state[2] & WHIRLPOOL_POWER) == WHIRLPOOL_POWER) {
     auto powered_on = this->mode != climate::CLIMATE_MODE_OFF;
 
     if (powered_on) {
@@ -355,7 +309,7 @@ bool WhirlpoolClimate::on_receive(remote_base::RemoteReceiveData data) {
     int temp = remote_state[3] & 0xF0;
     ESP_LOGVV(TAG, "Temperature Raw: %02X", temp);
     temp = (uint8_t) temp >> 4;
-    temp = std::min(temp + static_cast<int>(this->temperature_min_()), static_cast<int>(this->temperature_max_()));
+    temp += static_cast<int>(this->temperature_min_());
     ESP_LOGVV(TAG, "Temperature Climate: %u", temp);
     this->target_temperature = temp;
   }

esphome/components/whirlpool/whirlpool.h

@@ -6,10 +6,9 @@ namespace esphome::whirlpool {
 
 /// Simple enum to represent models.
 enum Model {
-  MODEL_DG11J1_3A = 0,           /// Temperature range is from 18 to 32
-  MODEL_DG11J1_91 = 1,           /// Temperature range is from 16 to 30
-  MODEL_HISENSE_ARG = 2,         /// Hisense/BGH (Argentina), 16 to 30
-  MODEL_HITACHI_HCRA31NEWH = 3,  /// Hitachi with the HCRA31NEWH remote, 16 to 30
+  MODEL_DG11J1_3A = 0,    /// Temperature range is from 18 to 32
+  MODEL_DG11J1_91 = 1,    /// Temperature range is from 16 to 30
+  MODEL_HISENSE_ARG = 2,  /// Hisense/BGH (Argentina), 16 to 30
 };
 
 // Temperature
@@ -30,9 +29,7 @@ class WhirlpoolClimate final : public climate_ir::ClimateIR {
 
   /// Override control to change settings of the climate device.
   void control(const climate::ClimateCall &call) override {
-    // The toggle remotes flip swing on every press, so only send one when the mode really changes
-    auto swing = call.get_swing_mode();
-    this->send_swing_cmd_ = swing.has_value() && *swing != this->swing_mode;
+    send_swing_cmd_ = call.get_swing_mode().has_value();
     climate_ir::ClimateIR::control(call);
   }
 
@@ -58,22 +55,10 @@ class WhirlpoolClimate final : public climate_ir::ClimateIR {
     return false;
 #endif
   }
-  /// False when the model is compiled out, so the compiler drops the Hitachi branches.
-  bool is_hitachi_hcra31newh_() const {
-#ifdef USE_WHIRLPOOL_HITACHI_HCRA31NEWH
-    return this->model_ == MODEL_HITACHI_HCRA31NEWH;
-#else
-    return false;
-#endif
-  }
-  /// The remote ID sent in bytes 0 and 1.
-  uint16_t remote_id_() const { return this->is_hitachi_hcra31newh_() ? 0xA959 : 0x8306; }
   /// Modes in which the Hisense ARG model sends a fixed temperature.
   bool fixed_temp_mode_() const;
   /// Add the Hisense ARG bytes on top of the common whirlpool frame.
   void encode_hisense_arg_(uint8_t *remote_state, bool power_toggle, uint8_t temp_step) const;
-  /// Add the Hitachi HCRA31NEWH bytes on top of the common whirlpool frame.
-  void encode_hitachi_hcra31newh_(uint8_t *remote_state) const;
   /// Set the time of the last transmission.
   uint32_t last_transmit_time_{};
 

esphome/components/wifi/wifi_component.h

@@ -563,7 +563,7 @@ class WiFiComponent final : public Component {
   // (In most use cases you won't need these)
   /// Setup WiFi interface.
   void setup() override;
-#if defined(USE_ESP32) || defined(USE_LN882X) || defined(USE_BK72XX)
+#if defined(USE_LN882X) || defined(USE_BK72XX)
   void on_powerdown() override;
 #endif
   void start();

esphome/components/wifi/wifi_component_esp_idf.cpp

@@ -1635,21 +1635,6 @@ bool WiFiComponent::wifi_dpp_start_listen_() {
 void WiFiComponent::wifi_dpp_stop_listen_() { esp_supp_dpp_stop_listen(); }
 #endif
 
-void WiFiComponent::on_powerdown() {
-  // Leave the AP before esp_restart() or deep sleep stops Wi-Fi. esp_wifi_stop() while associated
-  // makes the ESP32 retransmit its Disassociation up to the retry limit although the AP ACKs it
-  // (32 copies with protected management frames), which some APs handle badly.
-  // Upstream bug: https://github.com/espressif/esp-idf/issues/19443 - remove this once it is fixed
-  // in the ESP-IDF versions we support.
-  // Ask the driver: s_sta_connected lags until the main loop has handled the connect event.
-  wifi_ap_record_t ap_info;
-  if (esp_wifi_sta_get_ap_info(&ap_info) != ESP_OK)
-    return;
-  ESP_LOGD(TAG, "Disconnecting before powerdown");
-  esp_wifi_disconnect();
-  delay(100);  // NOLINT: once per reboot or deep sleep, lets the disassociation go out
-}
-
 bool WiFiComponent::wifi_disconnect_() { return esp_wifi_disconnect(); }
 
 bssid_t WiFiComponent::wifi_bssid() {

esphome/core/application.cpp

@@ -294,8 +294,6 @@ void Application::reboot() {
   for (auto &component : std::ranges::reverse_view(this->components_)) {
     component->on_shutdown();
   }
-  // No teardown on a forced reboot, but still power hardware down (Wi-Fi leaves the AP)
-  this->run_powerdown_hooks();
   arch_restart();
 }
 void Application::safe_reboot() {

esphome/core/component.h

@@ -185,12 +185,10 @@ class Component {
    */
   virtual bool teardown() { return true; }
 
-  /** Called last before a reboot or deep sleep to power down hardware.
+  /** Called after teardown is complete to power down hardware.
    *
-   * On a safe shutdown this is called after all components have finished their teardown process,
+   * This is called after all components have finished their teardown process,
    * making it safe to power down hardware like ethernet PHY.
-   * On a forced reboot (Application::reboot()) it is called right after on_shutdown() with no
-   * teardown, so implementations must not assume teardown() has run.
    */
   virtual void on_powerdown() {}
 

esphome/core/defines.h

@@ -70,7 +70,6 @@
 #define USE_BUTTON
 #define USE_CAMERA
 #define USE_CANBUS_FD
-#define USE_CC1101_LONG_PACKET
 #define USE_CLIMATE
 #define USE_CLIMATE_VISUAL_OVERRIDES
 #define USE_CONTROLLER_REGISTRY
@@ -388,7 +387,6 @@
 #define USE_WATER_HEATER
 #define USE_WATER_HEATER_VISUAL_OVERRIDES
 #define USE_WHIRLPOOL_HISENSE_ARG
-#define USE_WHIRLPOOL_HITACHI_HCRA31NEWH
 #define USE_ZWAVE_PROXY
 
 // Feature flags which do not work for zephyr

esphome/core/helpers.cpp

@@ -337,57 +337,6 @@ size_t truncate_name_to(char *buffer, size_t buffer_size, const char *name, size
 
 // Parsing & formatting
 
-// A plain decimal converts exactly with one division: the digits accumulate
-// into an integer that stays below 2^24 and the fraction's scale is a power of
-// ten up to 1e9 (2^9 * 5^9), so both convert to float exactly and IEEE division
-// rounds the quotient correctly, the same result strtof produces.
-static constexpr uint32_t PARSE_FLOAT_MANTISSA_LIMIT = 1000000;  // one more digit stays below 2^24
-static constexpr uint32_t PARSE_FLOAT_MAX_FRACTION_DIGITS = 9;
-
-optional<float> parse_float(const char *str) {
-  const char *p = str;
-  const bool negative = *p == '-';
-  if (negative || *p == '+')
-    p++;
-  const char *digits = p;
-  const char *dot = nullptr;
-  uint32_t mantissa = 0;
-  for (;; p++) {
-    const uint32_t d = static_cast<unsigned char>(*p) - '0';
-    if (d > 9) {
-      if (*p == '.' && dot == nullptr) {
-        dot = p;
-        continue;
-      }
-      break;
-    }
-    if (mantissa >= PARSE_FLOAT_MANTISSA_LIMIT)
-      break;
-    mantissa = mantissa * 10 + d;
-  }
-  const uint32_t fraction_digits = dot != nullptr ? p - dot - 1 : 0;
-  const bool any_digit = p - digits > (dot != nullptr ? 1 : 0);
-  if (*p == '\0' && any_digit && fraction_digits <= PARSE_FLOAT_MAX_FRACTION_DIGITS) {
-    // The mantissa is exact in a float, so the sign goes on before the one rounding step
-    float value = static_cast<float>(mantissa);
-    if (negative)
-      value = -value;
-    if (fraction_digits != 0) {
-      uint32_t scale = 10;
-      for (uint32_t i = 1; i < fraction_digits; i++)
-        scale *= 10;
-      value /= static_cast<float>(scale);
-    }
-    return value;
-  }
-  // Exponents, hex, inf, nan, leading whitespace and longer inputs take the libc path.
-  char *end = nullptr;
-  const float value = ::strtof(str, &end);
-  if (end == str || *end != '\0' || value == HUGE_VALF)
-    return {};
-  return value;
-}
-
 size_t parse_hex(const char *str, size_t length, uint8_t *data, size_t count) {
   size_t chars = std::min(length, 2 * count);
   for (size_t i = 2 * count - chars; i < 2 * count; i++, str++) {

esphome/core/helpers.h

@@ -25,6 +25,7 @@
 #include <strings.h>
 
 #include "esphome/core/optional.h"
+#include "esphome/core/parse_float.h"
 #include "esphome/core/time_conversion.h"
 
 #ifdef USE_ESP8266
@@ -1033,6 +1034,26 @@ inline float pow10_int(int8_t exp) {
   return result;
 }
 
+/// 10^n, exact while it fits in T.
+template<typename T> constexpr T pow10_exact(uint32_t n) {
+  T result = 1;
+  T base = 10;
+  for (;;) {
+    if ((n & 1) != 0)
+      result *= base;
+    n >>= 1;
+    if (n == 0)
+      return result;
+    base *= base;
+  }
+}
+
+/// Whether c is '0' to '9'.
+constexpr bool is_digit(char c) { return static_cast<uint8_t>(c - '0') <= 9; }
+
+/// Whether c is C-locale white space, without isspace's ctype table.
+constexpr bool is_space_c(char c) { return c == ' ' || (c >= '\t' && c <= '\r'); }
+
 /// Remap \p value from the range (\p min, \p max) to (\p min_out, \p max_out).
 template<typename T, typename U> T remap(U value, U min, U max, T min_out, T max_out) {
   return (value - min) * (max_out - min_out) / (max - min) + min_out;
@@ -1573,8 +1594,6 @@ template<typename T, enable_if_t<(std::is_integral<T>::value && std::is_signed<T
 optional<T> parse_number(const std::string &str) {
   return parse_number<T>(str.c_str());
 }
-/// Parse a decimal floating-point number; plain decimals skip the libc parser.
-optional<float> parse_float(const char *str);
 /// Parse a decimal floating-point number from a null-terminated string.
 template<typename T, enable_if_t<(std::is_same<T, float>::value), int> = 0> optional<T> parse_number(const char *str) {
   return parse_float(str);

esphome/core/parse_float.cpp

@@ -0,0 +1,372 @@
+// picolibc 1.8.10's strtof, bit for bit, without libc's strtod: decimals round to 9 digits, then to the nearest float.
+// Float bits are built from integers, so chips that flush denormals give the same result.
+
+#include "esphome/core/parse_float.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+
+#include <algorithm>
+#include <bit>
+
+namespace esphome {
+
+namespace {
+
+constexpr uint32_t FLOAT_SIGN_BIT = 0x80000000, FLOAT_INF_BITS = 0x7F800000;
+constexpr uint32_t FLOAT_NAN_BITS = 0x7FC00000;  // nanf(""), which strtof returns for every NaN
+
+constexpr uint32_t DECIMAL_DIGITS = 9, HEX_DIGITS = 8;  // digits kept before the rest only round
+constexpr int32_t EXPONENT_CAP = 224;  // picolibc stops adding exponent digits once the exponent reaches this
+// 0.<digits> * 10^exp10 is zero at or below MIN_EXP10 and infinity at or above MAX_EXP10, as in picolibc
+constexpr int32_t MIN_EXP10 = -46, MAX_EXP10 = 40;
+// Past this, one more digit could pass 2^24
+constexpr uint32_t PLAIN_MANTISSA_LIMIT = 1677720;
+
+// Bits of the float nearest to (m + sticky fraction) * 2^e, ties to even; m > 0
+uint32_t round_to_float_bits(uint64_t m, int32_t e, bool sticky) {
+  const int32_t msb = e + static_cast<int32_t>(std::bit_width(m)) - 1;  // the value is in [2^msb, 2^(msb + 1))
+  if (msb >= 128)
+    return FLOAT_INF_BITS;
+  if (msb < -150)  // below half the smallest float
+    return 0;
+  // The unit of the float's last bit: 2^(msb - 23), or 2^-149 for a denormal
+  const int32_t shift = std::max<int32_t>(msb - 23, -149) - e;  // at most 64
+  uint64_t q;
+  if (shift <= 0) {
+    q = m << -shift;
+  } else {
+    q = shift < 64 ? m >> shift : 0;
+    const uint64_t rem = shift < 64 ? m & ((uint64_t{1} << shift) - 1) : m;
+    const uint64_t half = uint64_t{1} << (shift - 1);
+    if (rem > half || (rem == half && (sticky || (q & 1) != 0)))
+      q++;
+  }
+  if (msb < -126)
+    return static_cast<uint32_t>(q);  // 2^23 here is the smallest normal float, as it should be
+  // Rounding up past the largest float gives exactly FLOAT_INF_BITS
+  return (static_cast<uint32_t>(msb + 127) << 23) + static_cast<uint32_t>(q - (uint64_t{1} << 23));
+}
+
+// The decimal exponents that reach decimal_to_float_bits: 1 to 9 digits and MIN_EXP10 < digits + e10 < MAX_EXP10
+constexpr int32_t MIN_E10 = MIN_EXP10 + 1 - static_cast<int32_t>(DECIMAL_DIGITS), MAX_E10 = MAX_EXP10 - 2;
+// Top 64 bits of 10^(8k), rounded down: 10^(8k) = entry * 2^(floor_log2_pow10(8k) - 63), exact for k = 0..3
+constexpr int32_t POW10_BY_8_FIRST = MIN_E10 >> 3, POW10_BY_8_LAST = MAX_E10 >> 3;
+constexpr uint64_t POW10_BY_8[] PROGMEM = {
+    0xFB158592BE068D2E, 0xBB127C53B17EC159, 0x8B61313BBABCE2C6, 0xCFB11EAD453994BA,
+    0x9ABE14CD44753B52, 0xE69594BEC44DE15B, 0xABCC77118461CEFC, 0x8000000000000000,
+    0xBEBC200000000000, 0x8E1BC9BF04000000, 0xD3C21BCECCEDA100, 0x9DC5ADA82B70B59D,
+};
+static_assert(POW10_BY_8_FIRST == -7 && POW10_BY_8_LAST == 4 &&
+                  sizeof(POW10_BY_8) / sizeof(POW10_BY_8[0]) == POW10_BY_8_LAST - POW10_BY_8_FIRST + 1,
+              "POW10_BY_8 must cover MIN_E10..MAX_E10");
+
+// floor(q * log2(10)), for |q| < 100
+constexpr int32_t floor_log2_pow10(int32_t q) { return (q * 217706) >> 16; }
+
+// The top 64 bits of a * b, rounded down
+uint64_t mul_high(uint64_t a, uint64_t b) {
+  const uint64_t a_lo = static_cast<uint32_t>(a), a_hi = a >> 32;
+  const uint64_t b_lo = static_cast<uint32_t>(b), b_hi = b >> 32;
+  const uint64_t hi_lo = a_hi * b_lo, lo_hi = a_lo * b_hi;
+  const uint64_t middle = ((a_lo * b_lo) >> 32) + static_cast<uint32_t>(hi_lo) + static_cast<uint32_t>(lo_hi);
+  return a_hi * b_hi + (hi_lo >> 32) + (lo_hi >> 32) + (middle >> 32);
+}
+
+// Cold: a decimal within 16 units of a midpoint is an exact tie when m10 * 5^e10 is an integer
+__attribute__((noinline, cold)) uint32_t tie_float_bits(uint32_t m10, int32_t e10, uint32_t bits) {
+  if (e10 >= 0) {
+    if (e10 <= 14)  // m10 * 5^14 stays below 2^64
+      return round_to_float_bits(m10 * (pow10_exact<uint64_t>(e10) >> e10), e10, false);
+  } else if (e10 >= -13) {
+    const auto pow5 = static_cast<uint32_t>(pow10_exact<uint64_t>(-e10) >> -e10);
+    if (m10 % pow5 == 0)
+      return round_to_float_bits(m10 / pow5, e10, false);
+  }
+  return bits;
+}
+
+// The float nearest to m10 * 10^e10 (0 < m10 <= 10^9). The product is under 4 units low; checked for all 85 billion
+// (m10, e10), only exact ties and one non-tie (6 units off, keeps its float) come within 34 units of a midpoint.
+uint32_t decimal_to_float_bits(uint32_t m10, int32_t e10) {
+  // Both operands are exact floats, so the one float operation gives the nearest float
+  const uint32_t power = e10 < 0 ? -e10 : e10;
+  if (m10 < (1u << 24) && power <= 10) {
+    const auto value = static_cast<float>(m10);
+    // 10^10 overflows uint32_t
+    const float factor = power == 10 ? 1e10f : static_cast<float>(pow10_exact<uint32_t>(power));
+    return bit_cast<uint32_t>(e10 < 0 ? value / factor : value * factor);
+  }
+  const int32_t k8 = e10 >> 3;  // rounds down
+  const uint64_t x = uint64_t{m10} * pow10_exact<uint32_t>(e10 & 7);
+  const auto zeros = static_cast<int32_t>(std::countl_zero(x));
+  uint64_t m = x << zeros;
+  int32_t e = -zeros;
+  if (k8 == 0)
+    return round_to_float_bits(m, e, false);  // exact
+  m = mul_high(m, POW10_BY_8[k8 - POW10_BY_8_FIRST]);
+  e += floor_log2_pow10(8 * k8) + 1;
+  if ((m >> 63) == 0) {
+    m <<= 1;
+    e--;
+  }
+  const uint32_t bits = round_to_float_bits(m, e, false);
+  // The bits below the float's last one, and the midpoint among them
+  const int32_t shift = std::max<int32_t>(40, -149 - e);
+  if (shift <= 64) {
+    const uint64_t low = shift < 64 ? m & ((uint64_t{1} << shift) - 1) : m;
+    const uint64_t half = uint64_t{1} << (shift - 1);
+    if (low - half + 16 > 32)  // |low - half| > 16
+      return bits;
+  }
+  return tie_float_bits(m10, e10, bits);
+}
+
+uint32_t no_number(const char *str, const char **end, bool *negative) {
+  *end = str;
+  *negative = false;
+  return 0;
+}
+
+// The rest of an "nan" or "inf" after its first letter at p; returns the end, or nullptr for no number
+const char *read_inf_nan(const char *p) {
+  const auto lower = [](char c) { return static_cast<char>(c | 0x20); };
+  if (lower(*p) == 'n') {
+    if (lower(p[1]) != 'a' || lower(p[2]) != 'n')
+      return nullptr;
+    p += 3;
+    if (*p != '(')
+      return p;
+    // "nan(" must be closed after letters, digits and '_'
+    do {
+      p++;
+    } while (static_cast<uint8_t>(lower(*p) - 'a') < 26 || is_digit(*p) || *p == '_');
+    return *p == ')' ? p + 1 : nullptr;
+  }
+  if (lower(p[1]) != 'n' || lower(p[2]) != 'f')
+    return nullptr;
+  p += 3;
+  if (lower(*p) != 'i')
+    return p;
+  // Past "infi", only "infinity" is a number
+  return lower(p[1]) == 'n' && lower(p[2]) == 'i' && lower(p[3]) == 't' && lower(p[4]) == 'y' ? p + 5 : nullptr;
+}
+
+// Reads a binary exponent "p" or decimal exponent "e" at p into *exp; returns the end of the number
+const char *read_exponent(const char *p, char letter, int32_t *exp) {
+  if ((*p | 0x20) != letter)
+    return p;
+  const char *q = p + 1;
+  const bool negative = *q == '-';
+  if (negative || *q == '+')
+    q++;
+  if (!is_digit(*q))
+    return p;
+  int32_t value = 0;
+  for (; is_digit(*q); q++) {
+    if (value < EXPONENT_CAP)
+      value = value * 10 + (*q - '0');
+  }
+  *exp += negative ? -value : value;
+  return q;
+}
+
+// Hex digits after the "x" at p, with the point and decimal exponent read so far (no non-zero digit yet)
+__attribute__((noinline, cold)) uint32_t read_hex(const char *p, bool dot, int32_t exp, const char **end) {
+  uint32_t m = 0, kept = 0;  // kept: digits in m from its first non-zero one
+  bool sticky = false;
+  for (;; p++) {
+    const char lower = static_cast<char>(*p | 0x20);
+    uint32_t digit = static_cast<uint8_t>(*p - '0');
+    if (static_cast<uint8_t>(lower - 'a') <= 5) {
+      digit = static_cast<uint8_t>(lower - 'a') + 10;
+    } else if (digit > 9) {
+      digit = 16;  // picolibc takes ':' to '?' as 10 to 15; we stop there like newlib
+    }
+    if (digit < 16) {
+      if (kept < HEX_DIGITS) {
+        if (dot)
+          exp--;
+        m = m * 16 + digit;
+        kept += m != 0 ? 1 : 0;
+      } else {
+        if (!dot)
+          exp++;
+        sticky |= digit != 0;
+      }
+    } else if (*p == '.' && !dot) {
+      dot = true;
+    } else if (lower != 'x' || m != 0) {  // picolibc takes another "x" while the value is still zero
+      break;
+    }
+  }
+  exp *= 4;
+  *end = read_exponent(p, 'p', &exp);
+  return m == 0 ? 0 : round_to_float_bits(m, exp, sticky);
+}
+
+// picolibc's conv_flt for a float from the first digit or point at p: returns the bits; *end is str for no number
+__attribute__((noinline)) uint32_t read_decimal(const char *str, const char *p, const char **end) {
+  uint32_t m = 0, kept = 0;  // the first (up to 9) significant digits, and how many from the first non-zero one
+  int32_t exp = 0;           // the value is m * 10^exp
+  bool dot = false, any = false;
+  uint32_t overflow = 0;  // digits past the kept ones: 0 none, 1 below half, 2 half, 3 above half
+  bool full = false;      // a digit past the kept ones was read
+  for (;; p++) {
+    const uint32_t digit = static_cast<uint8_t>(*p - '0');
+    if (digit <= 9) {
+      any = true;
+      if (kept < DECIMAL_DIGITS) {
+        if (dot)
+          exp--;
+        m = m * 10 + digit;
+        kept += m != 0 ? 1 : 0;
+      } else {
+        if (!dot)
+          exp++;
+        if (!full) {
+          full = true;
+          overflow = digit > 5 ? 3 : digit == 5 ? 2 : digit != 0 ? 1 : 0;  // the first one decides the half
+        } else {
+          overflow |= digit != 0 ? 1 : 0;
+        }
+      }
+    } else if (*p == '.' && !dot) {
+      dot = true;
+    } else {
+      break;
+    }
+  }
+  if ((*p | 0x20) == 'x' && any && m == 0)
+    return read_hex(p + 1, dot, exp, end);
+  if (!any) {
+    *end = str;
+    return 0;
+  }
+  *end = read_exponent(p, 'e', &exp);
+  if (m == 0)
+    return 0;
+  // Ties to even on the decimal digits
+  overflow |= m & 1;
+  m += (overflow + 1) >> 2;
+  const int32_t exp10 = static_cast<int32_t>(kept) + exp;
+  if (exp10 <= MIN_EXP10)
+    return 0;
+  if (exp10 >= MAX_EXP10)
+    return FLOAT_INF_BITS;
+  return decimal_to_float_bits(m, exp);
+}
+
+// picolibc's strtof from the start: returns the bits without the sign, which goes in *negative
+__attribute__((noinline)) uint32_t parse_float_full(const char *str, const char **end, bool *negative) {
+  // No number starts with a letter but i (inf) or n (nan): "unavailable", "on" and "unknown" stop here
+  const char first = static_cast<char>(*str | 0x20);
+  if (first >= 'a' && first <= 'z' && first != 'i' && first != 'n')
+    return no_number(str, end, negative);
+  const char *p = str;
+  while (is_space_c(*p))
+    p++;
+  *negative = *p == '-';
+  if (*negative || *p == '+')
+    p++;
+  const char lower = static_cast<char>(*p | 0x20);
+  if (lower == 'i' || lower == 'n') {
+    const char *stop = read_inf_nan(p);
+    if (stop == nullptr)
+      return no_number(str, end, negative);
+    *end = stop;
+    return lower == 'i' ? FLOAT_INF_BITS : FLOAT_NAN_BITS;
+  }
+  const uint32_t bits = read_decimal(str, p, end);
+  if (*end == str)
+    *negative = false;
+  return bits;
+}
+
+// A plain decimal below 2^24 with up to 9 digits after the point, in one float operation; nullptr otherwise
+ESPHOME_ALWAYS_INLINE inline const char *parse_plain_decimal(const char *str, uint32_t *bits, bool *negative) {
+  const char *p = str;
+  *negative = *p == '-';
+  if (*negative || *p == '+')
+    p++;
+  const char *digits = p;
+  const char *point = nullptr;
+  uint32_t mantissa = 0;
+  for (;; p++) {
+    const uint32_t d = static_cast<uint8_t>(*p) - '0';
+    if (d > 9) {
+      if (*p == '.' && point == nullptr) {
+        point = p;
+        continue;
+      }
+      break;
+    }
+    if (mantissa > PLAIN_MANTISSA_LIMIT)
+      return nullptr;
+    mantissa = mantissa * 10 + d;
+  }
+  const uint32_t fraction = point != nullptr ? p - point - 1 : 0;
+  const char c = static_cast<char>(*p | 0x20);
+  if (p - digits == (point != nullptr ? 1 : 0) || fraction > 9 || c == 'e' || c == 'x')
+    return nullptr;
+  float value = static_cast<float>(mantissa);
+  if (fraction != 0)
+    value /= static_cast<float>(pow10_exact<uint32_t>(fraction));  // 10^9 is an exact float
+  *bits = bit_cast<uint32_t>(value);
+  return p;
+}
+
+}  // namespace
+
+optional<float> parse_float(const char *str) {
+  // Own copy of the plain-decimal loop: sharing parse_plain_decimal costs 12 to 18% more instructions
+  const char *p = str;
+  const bool negative = *p == '-';
+  if (negative || *p == '+')
+    p++;
+  const char *digits = p;
+  const char *point = nullptr;
+  uint32_t mantissa = 0;
+  for (;; p++) {
+    const uint32_t d = static_cast<uint8_t>(*p) - '0';
+    if (d > 9) {
+      if (*p == '.' && point == nullptr) {
+        point = p;
+        continue;
+      }
+      break;
+    }
+    if (mantissa > PLAIN_MANTISSA_LIMIT)
+      break;
+    mantissa = mantissa * 10 + d;
+  }
+  const uint32_t fraction = point != nullptr ? p - point - 1 : 0;
+  if (*p == '\0' && p - digits > (point != nullptr ? 1 : 0) && fraction <= 9) {
+    float value = negative ? -static_cast<float>(mantissa) : static_cast<float>(mantissa);
+    if (fraction != 0)
+      value /= static_cast<float>(pow10_exact<uint32_t>(fraction));
+    return value;
+  }
+  const char *end;
+  bool full_negative;
+  const uint32_t bits = parse_float_full(str, &end, &full_negative);
+  // HUGE_VALF, positive overflow or "inf", is rejected like before
+  if (end == str || *end != '\0' || (!full_negative && bits == FLOAT_INF_BITS))
+    return {};
+  return bit_cast<float>(full_negative ? bits | FLOAT_SIGN_BIT : bits);
+}
+
+float str_to_float(const char *str, char **end) {
+  const char *stop;
+  bool negative;
+  uint32_t bits;
+  if (const char *plain_end = parse_plain_decimal(str, &bits, &negative)) {
+    stop = plain_end;
+  } else {
+    bits = parse_float_full(str, &stop, &negative);
+  }
+  if (end != nullptr)
+    *end = const_cast<char *>(stop);  // strtof's signature
+  return bit_cast<float>(negative ? bits | FLOAT_SIGN_BIT : bits);
+}
+
+}  // namespace esphome

esphome/core/parse_float.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <cstdint>
+
+#include "esphome/core/optional.h"
+
+namespace esphome {
+
+/// The whole string as str_to_float's syntax (leading space, hex, inf, nan); trailing characters, "inf" and positive
+/// overflow are rejected, while -inf, negative overflow and NaN are accepted.
+optional<float> parse_float(const char *str);
+
+/// strtof with picolibc's results on every platform, but it never sets errno (overflow gives +-HUGE_VALF, underflow 0);
+/// use it instead of strtof, or strtod/atof for a float result.
+float str_to_float(const char *str, char **end);
+
+}  // namespace esphome

esphome/core/string_ref.h

@@ -7,6 +7,7 @@
 #include <memory>
 #include <string>
 #include "esphome/core/defines.h"
+#include "esphome/core/parse_float.h"
 
 #ifdef USE_JSON
 #include "esphome/components/json/json_util.h"
@@ -293,7 +294,7 @@ inline bool operator!=(const std::string &lhs, const ProgmemStringRef &rhs) { re
 #endif
 
 // String conversion functions for ADL compatibility (allows stoi(x) where x is StringRef)
-// Must be in esphome namespace for ADL to find them. Uses strtol/strtod directly to avoid heap allocation.
+// Must be in esphome namespace for ADL to find them. Uses strtol, strtod and str_to_float to avoid heap allocation.
 namespace internal {
 // NOLINTBEGIN(google-runtime-int)
 template<typename R, typename F> inline R parse_number(const StringRef &str, size_t *pos, F conv) {
@@ -334,7 +335,7 @@ inline long stol(const StringRef &str, size_t *pos = nullptr, int base = 10) {
   return internal::parse_number<long>(str, pos, base, std::strtol);
 }
 inline float stof(const StringRef &str, size_t *pos = nullptr) {
-  return internal::parse_number<float>(str, pos, std::strtof);
+  return internal::parse_number<float>(str, pos, str_to_float);
 }
 inline double stod(const StringRef &str, size_t *pos = nullptr) {
   return internal::parse_number<double>(str, pos, std::strtod);

tests/benchmarks/core/bench_parse_float.cpp

@@ -0,0 +1,40 @@
+#include <benchmark/benchmark.h>
+
+#include "esphome/core/helpers.h"
+
+namespace esphome::benchmarks {
+
+// Inner iteration count to amortize CodSpeed instrumentation overhead.
+static constexpr int kInnerIterations = 2000;
+
+static const char *const PLAIN[] = {"0.5", "255", "-12.75", "21.3"};
+static const char *const EXPONENT[] = {"1e3", "2.5e-2", "-6.02E5", "1.5e+1"};
+static const char *const PRECISE[] = {"3.14159265358979", "0.000123456789", "123456789.125", "-0.1000000000000000055"};
+// Home Assistant states that are not numbers
+static const char *const REJECT[] = {"unavailable", "unknown", "on", "off"};
+
+template<size_t N, typename F> static void run(benchmark::State &state, const char *const (&inputs)[N], F parse) {
+  for (auto _ : state) {
+    float sum = 0.0f;
+    for (int i = 0; i < kInnerIterations; i++)
+      sum += parse(inputs[i % N]);
+    benchmark::DoNotOptimize(sum);
+  }
+  state.SetItemsProcessed(state.iterations() * kInnerIterations);
+}
+
+static float parse_number_float(const char *str) { return parse_number<float>(str).value_or(0.0f); }
+
+static void ParseNumberFloat_Plain(benchmark::State &state) { run(state, PLAIN, parse_number_float); }
+BENCHMARK(ParseNumberFloat_Plain);
+
+static void ParseNumberFloat_Exponent(benchmark::State &state) { run(state, EXPONENT, parse_number_float); }
+BENCHMARK(ParseNumberFloat_Exponent);
+
+static void ParseNumberFloat_Precise(benchmark::State &state) { run(state, PRECISE, parse_number_float); }
+BENCHMARK(ParseNumberFloat_Precise);
+
+static void ParseNumberFloat_Reject(benchmark::State &state) { run(state, REJECT, parse_number_float); }
+BENCHMARK(ParseNumberFloat_Reject);
+
+}  // namespace esphome::benchmarks

tests/component_tests/cc1101/test_cc1101_packet_length.py

@@ -1,62 +0,0 @@
-"""Tests for cc1101 packet_length validation."""
-
-from typing import Any
-
-import pytest
-
-from esphome.components.cc1101 import _validate_packet_mode
-import esphome.config_validation as cv
-from esphome.core import Lambda
-
-LENGTH_LAMBDA = Lambda("return x.size() < 3 ? 0 : x[2] + 12;")
-
-
-@pytest.mark.parametrize(
-    "config",
-    [
-        {"packet_mode": True, "gdo0_pin": 2, "packet_length": LENGTH_LAMBDA},
-        {"packet_mode": True, "gdo0_pin": 2, "packet_length": 1024},
-        {"packet_mode": True, "gdo0_pin": 2, "packet_length": 64, "crc_enable": True},
-        {"packet_mode": False, "packet_length": 200, "crc_enable": True},
-    ],
-)
-def test_packet_length_valid(config: dict[str, Any]) -> None:
-    """Fixed lengths, a lambda, and CRC on packets that fit the FIFO are accepted."""
-    assert _validate_packet_mode(config) is config
-
-
-@pytest.mark.parametrize(
-    ("config", "message"),
-    [
-        (
-            {"packet_mode": False, "packet_length": LENGTH_LAMBDA},
-            "packet_mode is required when packet_length is a lambda",
-        ),
-        (
-            {"packet_mode": True, "gdo0_pin": 2},
-            "packet_length is required when packet_mode is enabled",
-        ),
-        (
-            {
-                "packet_mode": True,
-                "gdo0_pin": 2,
-                "packet_length": 65,
-                "crc_enable": True,
-            },
-            "crc_enable is not supported",
-        ),
-        (
-            {
-                "packet_mode": True,
-                "gdo0_pin": 2,
-                "packet_length": LENGTH_LAMBDA,
-                "crc_enable": True,
-            },
-            "crc_enable is not supported",
-        ),
-    ],
-)
-def test_packet_length_invalid(config: dict[str, Any], message: str) -> None:
-    """Invalid packet_length combinations are rejected with a clear message."""
-    with pytest.raises(cv.Invalid, match=message):
-        _validate_packet_mode(config)

tests/component_tests/sx126x/test_sync_value.py

@@ -1,18 +0,0 @@
-"""Validate the sync-word limit before firmware generation."""
-
-import pytest
-
-from esphome.components.sx126x import CONF_SYNC_VALUE, CONFIG_SCHEMA
-import esphome.config_validation as cv
-
-
-@pytest.mark.parametrize("size", [0, 1, 2, 8])
-def test_supported_sync_lengths(size: int) -> None:
-    value = [0x14] * size
-    assert CONFIG_SCHEMA.schema[CONF_SYNC_VALUE](value) == value
-
-
-@pytest.mark.parametrize("size", [9, 256])
-def test_oversized_sync_word(size: int) -> None:
-    with pytest.raises(cv.Invalid, match="at most 8"):
-        CONFIG_SCHEMA.schema[CONF_SYNC_VALUE]([0x14] * size)

tests/components/cc1101/test-long-packet.esp32-idf.yaml

@@ -1,26 +0,0 @@
-packages:
-  spi: !include ../../test_build_components/common/spi/esp32-idf.yaml
-
-cc1101:
-  # Above 255 bytes: infinite length mode, then fixed for the remainder
-  - id: transceiver_long_fixed
-    cs_pin: GPIO5
-    gdo0_pin: GPIO4
-    packet_mode: true
-    packet_length: 1024
-    on_packet:
-      then:
-        - lambda: 'ESP_LOGD("cc1101", "long packet %u bytes", x.size());'
-
-  # Length taken from the packet header
-  - id: transceiver_long_lambda
-    cs_pin: GPIO15
-    gdo0_pin: GPIO2
-    packet_mode: true
-    packet_length: !lambda |-
-      if (x.size() < 3) return 0;
-      if (x[0] != 0x54) return -1;
-      return x[2] + 12;
-    on_packet:
-      then:
-        - lambda: 'ESP_LOGD("cc1101", "lambda packet %u bytes rssi %.1f", x.size(), rssi);'

tests/components/cc1101/test-long-packet.rp2040-ard.yaml

@@ -1,24 +0,0 @@
-packages:
-  spi: !include ../../test_build_components/common/spi/rp2040-ard.yaml
-
-cc1101:
-  - id: transceiver_long_fixed
-    cs_pin: GPIO5
-    gdo0_pin: GPIO4
-    packet_mode: true
-    packet_length: 1024
-    on_packet:
-      then:
-        - lambda: 'ESP_LOGD("cc1101", "long packet %u bytes", x.size());'
-
-  - id: transceiver_long_lambda
-    cs_pin: GPIO15
-    gdo0_pin: GPIO2
-    packet_mode: true
-    packet_length: !lambda |-
-      if (x.size() < 3) return 0;
-      if (x[0] != 0x54) return -1;
-      return x[2] + 12;
-    on_packet:
-      then:
-        - lambda: 'ESP_LOGD("cc1101", "lambda packet %u bytes rssi %.1f", x.size(), rssi);'

tests/components/cc1101/test.rp2040-ard.yaml

@@ -1,7 +0,0 @@
-substitutions:
-  cs_pin: GPIO5
-  gdo0_pin: GPIO4
-
-packages:
-  spi: !include ../../test_build_components/common/spi/rp2040-ard.yaml
-  cc1101: !include common.yaml

tests/components/core/test_parse_float.cpp

@@ -1,34 +1,74 @@
 #include <gtest/gtest.h>
 
+#include <cmath>
 #include <cstdint>
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <random>
 #include <string>
 
 #include "esphome/core/helpers.h"
+#include "esphome/core/parse_float.h"
 
+#ifdef USE_HOST
 namespace esphome::core::testing {
 
-static uint32_t bits(float value) {
-  uint32_t out;
-  memcpy(&out, &value, sizeof(out));
-  return out;
+static uint32_t bits(float value) { return bit_cast<uint32_t>(value); }
+
+// picolibc rounds a decimal to 9 significant digits and converts those to the nearest float, so up to 9
+// significant digits its result is the correctly rounded float the host's strtof (glibc, macOS) gives. Longer
+// input and the syntax where libcs differ are checked against values taken from picolibc 1.8.10's own strtof.
+static float reference_strtof(const char *str, char **end) {
+  const float value = ::strtof(str, end);
+  if (std::isnan(value))
+    return std::signbit(value) ? -NAN : NAN;
+  return value;
 }
 
-// strtof is the reference: every accepted input must give the same bits.
+// Every accepted input must give the reference's bits.
 static void expect_matches_strtof(const char *str) {
-  char *end = nullptr;
-  const float expected = ::strtof(str, &end);
+  const float expected = reference_strtof(str, nullptr);
   const auto parsed = parse_number<float>(str);
   if (!parsed.has_value()) {
     ADD_FAILURE() << str << " was rejected";
     return;
   }
-  const float actual = parsed.value();
-  EXPECT_EQ(bits(actual), bits(expected)) << str << " parsed " << actual << " expected " << expected;
+  EXPECT_EQ(bits(parsed.value()), bits(expected)) << str;
 }
 
+// The same bits and end as the host's strtof; for decimals of up to 9 significant digits
+static void expect_str_to_float_matches(const char *str) {
+  char *expected_end = nullptr;
+  const float expected = reference_strtof(str, &expected_end);
+  char *end = nullptr;
+  const float actual = str_to_float(str, &end);
+  EXPECT_EQ(bits(actual), bits(expected)) << '"' << str << '"';
+  EXPECT_EQ(end - str, expected_end - str) << '"' << str << '"';
+}
+
+struct PicolibcCase {
+  const char *str;
+  uint32_t bits;
+  int32_t end;
+};
+
+// Bits and end from picolibc 1.8.10's strtof
+static void expect_picolibc(const PicolibcCase &c) {
+  char *end = nullptr;
+  const float value = str_to_float(c.str, &end);
+  EXPECT_EQ(bits(value), c.bits) << '"' << c.str << '"';
+  EXPECT_EQ(end - c.str, c.end) << '"' << c.str << '"';
+}
+
+static void expect_picolibc(const std::string &str, uint32_t expected) {
+  char *end = nullptr;
+  EXPECT_EQ(bits(str_to_float(str.c_str(), &end)), expected) << str.substr(0, 40);
+  EXPECT_EQ(static_cast<size_t>(end - str.c_str()), str.size()) << str.substr(0, 40);
+}
+
+static float float_from(uint32_t value) { return bit_cast<float>(value); }
+
 TEST(ParseFloat, PlainDecimalsMatchStrtof) {
   for (const char *str :
        {"0",     "-0",      "+0",        "1",        "-1",          "100.50",      "99.75",       "0.1", "0.3",
@@ -46,6 +86,14 @@ TEST(ParseFloat, SweepOfTwoDecimalValuesMatchesStrtof) {
   }
 }
 
+// Eight-digit mantissas below 2^24 stay on the one-division path; the next digit past the limit falls back
+TEST(ParseFloat, EightDigitPlainDecimalsMatchStrtof) {
+  for (const char *str : {"12345678", "-12345678", "1234.5678", "0.12345678", "16777209", "1677720.9", "0.16777209",
+                          "16777210", "16777215", "1677721.5", "99999999", "9999999.9", "16777209."}) {
+    expect_matches_strtof(str);
+  }
+}
+
 // A fraction longer than the fast path accepts must fall back, however long it is.
 TEST(ParseFloat, LongFractionsMatchStrtof) {
   std::string str = "0.";
@@ -68,10 +116,293 @@ TEST(ParseFloat, LibcPathInputsMatchStrtof) {
 // Positive overflow and a positive literal infinity both come back as HUGE_VALF from strtof, and the parser
 // rejects both; the negative forms pass through, as they did before the fast path.
 TEST(ParseFloat, RejectsInvalidInput) {
-  for (const char *str :
-       {"", "-", "+", ".", "abc", "12abc", "1.2.3", "1,5", "12 ", "--1", "1e", "1e400", "inf", "infinity"}) {
+  for (const char *str : {"", "-", "+", ".", "abc", "12abc", "1.2.3", "1,5", "12 ", "--1", "1e", "1e400", "inf",
+                          "infinity", "infi", "nan(12 ab)", "nan(12"}) {
     EXPECT_FALSE(parse_number<float>(str).has_value()) << str;
   }
 }
 
+// Above the midpoint 1 + 2^-24 by less than half a double: newlib's strtof rounds to the midpoint and then to
+// 1.0f; picolibc's 9 digits, 1.00000006, give the next float.
+TEST(ParseFloat, FullPathRoundsLikePicolibc) {
+  EXPECT_EQ(bits(parse_number<float>("1.0000000596046448").value()), 0x3F800001u);
+  EXPECT_EQ(bits(parse_number<float>("-1.0000000596046448").value()), 0xBF800001u);
+}
+
+// picolibc takes "nan(" with letters, digits and '_' up to a ")", and nothing at all otherwise
+TEST(ParseFloat, NanForms) {
+  EXPECT_TRUE(std::isnan(parse_number<float>("nan(12)").value()));
+  EXPECT_TRUE(std::isnan(parse_number<float>("nan(xyz_1)").value()));
+  EXPECT_FALSE(parse_number<float>("nan(x y)").has_value());
+}
+
+// The callers' overflow check: a positive overflow is HUGE_VALF and rejected, a negative one is -inf and accepted
+TEST(ParseFloat, OverflowIsHugeValf) {
+  EXPECT_FALSE(parse_number<float>("1e39").has_value());
+  EXPECT_FALSE(parse_number<float>("3.40282357e38").has_value());
+  EXPECT_FALSE(parse_number<float>("1e99999").has_value());
+  EXPECT_EQ(bits(parse_number<float>("-1e39").value()), 0xFF800000u);
+  EXPECT_EQ(bits(parse_number<float>("3.4028235e38").value()), 0x7F7FFFFFu);
+}
+
+// Up to 9 significant digits, with leading and trailing zeros, a point anywhere and an exponent
+TEST(StrToFloat, RandomDecimalsMatchStrtof) {
+  std::mt19937_64 rng(1);  // NOLINT(cert-msc32-c,cert-msc51-cpp,bugprone-random-generator-seed) reproducible
+  for (int i = 0; i < 50000; i++) {
+    std::string str;
+    if (rng() % 3 == 0)
+      str += (rng() & 1) ? "-" : "+";
+    const int zeros = static_cast<int>(rng() % 4);
+    const int significant = 1 + static_cast<int>(rng() % 9);
+    const int trailing = static_cast<int>(rng() % 4);
+    std::string digits(zeros, '0');
+    digits += static_cast<char>('1' + rng() % 9);
+    for (int j = 1; j < significant; j++)
+      digits += static_cast<char>('0' + rng() % 10);
+    digits.append(trailing, '0');
+    const int point = static_cast<int>(rng() % (digits.size() + 2)) - 1;
+    for (int j = 0; j < static_cast<int>(digits.size()); j++) {
+      if (j == point)
+        str += '.';
+      str += digits[j];
+    }
+    if (rng() & 1) {
+      str += (rng() & 1) ? 'e' : 'E';
+      char exp[8];
+      snprintf(exp, sizeof(exp), "%d", static_cast<int>(rng() % 110) - 60);
+      str += exp;
+    }
+    expect_str_to_float_matches(str.c_str());
+  }
+}
+
+// Every 16411th float, printed with 6 and 9 digits
+TEST(StrToFloat, FloatsMatchStrtof) {
+  char buf[64];
+  for (uint32_t u = 0; u < 0x7F800000; u += 16411) {
+    for (int precision : {6, 9}) {
+      snprintf(buf, sizeof(buf), "%.*e", precision - 1, static_cast<double>(float_from(u)));
+      expect_str_to_float_matches(buf);
+    }
+  }
+}
+
+TEST(StrToFloat, SyntaxMatchesStrtof) {
+  // Tokens whose combinations the libcs read alike: no "x", "nan(" or "infi"
+  static const char *const TOKENS[] = {"0", "1", "9", ".", "e", "E", "+", "-", "a", "N", " ", "\t", "y", "00", "#", ""};
+  for (const char *a : TOKENS) {
+    for (const char *b : TOKENS) {
+      for (const char *c : TOKENS) {
+        for (const char *d : TOKENS) {
+          const std::string str = std::string(a) + b + c + d;
+          expect_str_to_float_matches(str.c_str());
+        }
+      }
+    }
+  }
+}
+
+// Where newlib and glibc read the text differently from picolibc
+TEST(StrToFloat, SyntaxMatchesPicolibc) {
+  static const PicolibcCase CASES[] = {
+      // "x" after any zero digits starts hex, even after a point or a second "0x"
+      {"000x", 0x00000000, 4},
+      {"0x", 0x00000000, 2},
+      {"-0x", 0x80000000, 3},
+      {"00x1", 0x3F800000, 4},
+      {"0x0x1", 0x3F800000, 5},
+      {"0.0x1", 0x3B800000, 5},
+      {".x1", 0x00000000, 0},
+      {"0x.p1", 0x00000000, 5},
+      {"0x.8", 0x3F000000, 4},
+      {"0X1.8", 0x3FC00000, 5},
+      {"0x1P-1", 0x3F000000, 6},
+      {"0x1p+", 0x3F800000, 3},
+      {"1x5", 0x3F800000, 1},
+      // "inf" stops before anything but "i"; past "infi" only "infinity" is a number
+      {"inf", 0x7F800000, 3},
+      {"-inf", 0xFF800000, 4},
+      {"INFINITY", 0x7F800000, 8},
+      {"+infi0", 0x00000000, 0},
+      {"infi", 0x00000000, 0},
+      {"infinit", 0x00000000, 0},
+      // "nan(" takes letters, digits and '_' up to ")", and is no number without the ")"
+      {"NaN", 0x7FC00000, 3},
+      {"nan()", 0x7FC00000, 5},
+      {"nan(xyz)", 0x7FC00000, 8},
+      {"nan(_a1)", 0x7FC00000, 8},
+      {"-nan(1)", 0xFFC00000, 7},
+      {"nan( )", 0x00000000, 0},
+      {"nan(12 ab)", 0x00000000, 0},
+      {"nan(12", 0x00000000, 0},
+      // An exponent needs a digit
+      {"1e", 0x3F800000, 1},
+      {"1e+", 0x3F800000, 1},
+      {"1e-x", 0x3F800000, 1},
+      {"\t 12", 0x41400000, 4},
+      {"- 1", 0x00000000, 0},
+      {"1.2.3", 0x3F99999A, 3},
+  };
+  for (const PicolibcCase &c : CASES)
+    expect_picolibc(c);
+}
+
+// The inputs where newlib's strtof (decimal to double to float) and picolibc's were found to differ; every platform
+// now gives picolibc's result, which is also the correctly rounded float for these
+TEST(StrToFloat, RoundsLikePicolibcWhereNewlibDoubleRounds) {
+  expect_picolibc({"1.0000000596046448", 0x3F800001, 18});
+  expect_picolibc({"0x1.100b0d0000000c", 0x3F880587, 18});
+  expect_picolibc("1.000000059604644775390625" + std::string(800, '0') + "1", 0x3F800001);
+}
+
+// picolibc rounds a decimal to 9 significant digits, ties to even, before converting it: past 9 digits its float can
+// be one away from the nearest, and an exact tie between two floats can round up. Values from picolibc.
+TEST(StrToFloat, NineDigitRoundingLikePicolibc) {
+  static const PicolibcCase CASES[] = {
+      {"1.0856183295439e10", 0x5021C50E, 18},          // nearest 0x5021C50D
+      {"3.97496754550e-4", 0x39D0671D, 16},            // nearest 0x39D0671C
+      {"9.76178673657108930e23", 0x674EB6C1, 22},      // nearest 0x674EB6C0
+      {"156.6562236e-26", 0x17F269ED, 15},             // nearest 0x17F269EC
+      {"1.000000059604644775390625", 0x3F800001, 26},  // the tie 1 + 2^-24: nearest-even 0x3F800000
+      {"1.000000059", 0x3F800001, 11},                 // 1.00000006 after rounding
+      {"7.0064923216240854e-46", 0x00000000, 22},      // 7.00649232e-46, below half the smallest float
+      {"21.299999999999997", 0x41AA6666, 18},
+      {"0.30000000000000004", 0x3E99999A, 19},
+      {"0.1000000000000000055511151231257827", 0x3DCCCCCD, 36},
+  };
+  for (const PicolibcCase &c : CASES)
+    expect_picolibc(c);
+}
+
+// Nine digits converted exactly: ties to even between floats, where the 64-bit product cannot decide alone
+TEST(StrToFloat, NineDigitTiesGoToEven) {
+  static const PicolibcCase CASES[] = {
+      {"16777217", 0x4B800000, 8},  {"16777219", 0x4B800002, 8},    {"16777217.0", 0x4B800000, 10},
+      {"8388608.5", 0x4B000000, 9}, {"8388609.5", 0x4B000002, 9},   {"3e10", 0x50DF8476, 4},
+      {"5e10", 0x513A43B7, 4},      {"1.00000006", 0x3F800001, 10},
+  };
+  for (const PicolibcCase &c : CASES)
+    expect_picolibc(c);
+}
+
+// RP2350 flushes float denormals in its double to float conversion; #22677 bench. The parser builds the bits
+// with integer operations, so every denormal parses to its own value.
+TEST(StrToFloat, DenormalsParseWithoutFlushing) {
+  char buf[64];
+  const auto check = [&buf](uint32_t k) {
+    snprintf(buf, sizeof(buf), "%.8e", std::ldexp(static_cast<double>(k), -149));
+    EXPECT_EQ(bits(str_to_float(buf, nullptr)), k) << buf;
+  };
+  for (uint32_t k = 0; k <= 0x800000; k += 4099)
+    check(k);
+  // The largest denormal and FLT_MIN, where rounding carries into the exponent
+  for (uint32_t k : {1u, 2u, 0x7FFFFEu, 0x7FFFFFu, 0x800000u})
+    check(k);
+}
+
+// Pico W and Pico 2 W bench, #22677: the RP2040 and RP2350 libcs flush float denormals to 0 in their double to
+// float conversion, and the RP2040 one turns a NaN into +infinity
+TEST(StrToFloat, Rp2040LibcFlushesAndNanToInfinity) {
+  static const PicolibcCase CASES[] = {
+      {"1e-40", 0x000116C2, 5},          {"1.4e-45", 0x00000001, 7},  {"1e-38", 0x006CE3EE, 5},
+      {"1.1754942e-38", 0x007FFFFF, 13}, {"0x1p-149", 0x00000001, 8}, {"1.17549435e-38", 0x00800000, 14},
+      {"nan(12)", 0x7FC00000, 7},        {"nan", 0x7FC00000, 3},
+  };
+  for (const PicolibcCase &c : CASES)
+    expect_picolibc(c);
+}
+
+// RP2350 bench: libc returned 0 and the first parser stalled stepping up from a flushed guess; #22677 bench
+TEST(StrToFloat, DenormalsAndFltMinMatchStrtof) {
+  for (const char *str : {"1.4e-45", "-1.4e-45", "1e-40", "1e-38", "1.17549435e-38", "1.1754942e-38", "1.17549421e-38",
+                          "1.1754945e-38", "7.0064923e-46", "7.0064924e-46"}) {
+    expect_str_to_float_matches(str);
+  }
+}
+
+// Home Assistant's non-numeric states; CodSpeed HomeassistantSensor_StateResponse_Unavailable on #22677
+TEST(StrToFloat, NonNumericStatesAreRejected) {
+  for (const char *str : {"unavailable", "unknown", "on", "off", "", "-", ".", "none", "inactive"}) {
+    expect_str_to_float_matches(str);
+    EXPECT_FALSE(parse_number<float>(str).has_value()) << str;
+  }
+}
+
+// The one float operation path takes up to 2^24 - 1 and 10^10; #22677 review
+TEST(StrToFloat, PlainPathBoundaries) {
+  for (const char *top : {"16777215", "16777216", "16777217"}) {
+    for (const char *exp : {"e10", "e-10", "e11", "e-11", "e9", "e-9", ".5", ".25"}) {
+      const std::string str = std::string(top) + exp;
+      expect_str_to_float_matches(str.c_str());
+    }
+  }
+}
+
+// The midpoint between FLT_MAX and 2^128 rounds to infinity; review
+TEST(StrToFloat, OverflowMidpoint) {
+  expect_picolibc({"340282356779733661637539395458142568448", 0x7F800000, 39});
+  expect_picolibc({"3.40282356e38", 0x7F7FFFFF, 13});
+  expect_picolibc({"3.40282357e38", 0x7F800000, 13});
+  EXPECT_EQ(bits(str_to_float("0x1.ffffffp127", nullptr)), 0x7F800000u);
+}
+
+// picolibc stops adding exponent digits at 224, so the digits of the mantissa can move it no further
+TEST(StrToFloat, HugeExponents) {
+  for (const char *str : {"1e-99999", "1e99999", "-1e99999", "0e99999", "1e9999999999999999999",
+                          "1e-9999999999999999999", "1e-999999999999", "0.000e99999", "1e224", "1e2240", "1e-2240"}) {
+    expect_str_to_float_matches(str);
+  }
+  // 10^-3000 * 10^3000 is 1, but the exponent counts only as 300
+  expect_picolibc("0." + std::string(2999, '0') + "1e3000", 0x00000000);
+  expect_picolibc("1" + std::string(300, '0') + "e-300", 0x3F800000);
+}
+
+TEST(StrToFloat, LongMantissas) {
+  expect_picolibc("1" + std::string(799, '0') + "e-799", 0x3F800000);
+  expect_picolibc("1." + std::string(3000, '0') + "1e-3001", 0x00000000);
+  expect_picolibc("0." + std::string(400, '0') + "34028235" + std::string(500, '7') + "e440", 0x7F800000);
+  expect_picolibc(std::string(300, '9') + "e-261", 0x7F800000);
+  expect_picolibc("3" + std::string(799, '7') + "e-761", 0x7F800000);
+}
+
+// picolibc takes ':' to '?' as hex digits 10 to 15 ("0x1:" is 26); these stop at them, as newlib does. #22677 review
+TEST(StrToFloat, HexStopsAtPunctuationAfterNine) {
+  struct Case {
+    const char *str;
+    uint32_t bits;
+    int32_t end;
+  };
+  const Case cases[] = {
+      {"0x1:", 0x3F800000, 3}, {"0x1;", 0x3F800000, 3}, {"0x1<", 0x3F800000, 3},  {"0x1=", 0x3F800000, 3},
+      {"0x1>", 0x3F800000, 3}, {"0x1?", 0x3F800000, 3}, {"0x1.:", 0x3F800000, 4}, {"0x:", 0x00000000, 2},
+      {"0x9?", 0x41100000, 3}, {"0xA:", 0x41200000, 3},
+  };
+  for (const auto &c : cases) {
+    char *end = nullptr;
+    const float value = str_to_float(c.str, &end);
+    EXPECT_EQ(bits(value), c.bits) << '"' << c.str << '"';
+    EXPECT_EQ(end - c.str, c.end) << '"' << c.str << '"';
+    EXPECT_FALSE(parse_number<float>(c.str).has_value()) << c.str;
+  }
+}
+
+TEST(StrToFloat, HexDenormalsAndOverflow) {
+  struct Case {
+    const char *str;
+    uint32_t bits;
+  };
+  static const Case CASES[] = {
+      {"0x1p-149", 0x00000001},         {"0x1p-150", 0x00000000},
+      {"0x1.8p-149", 0x00000002},       {"0x1.fffffcp-127", 0x007FFFFF},
+      {"0x1.fffffep-127", 0x00800000},  {"-0x1p-149", 0x80000001},
+      {"0x1p128", 0x7F800000},          {"0x1.fffffep127", 0x7F7FFFFF},
+      {"0x1.fffffefp127", 0x7F7FFFFF},  {"0x1.0000000000001p-150", 0x00000001},
+      {"0x1.000001p0", 0x3F800000},     {"0x1.000003p0", 0x3F800002},
+      {"0x1p-99999999999", 0x00000000}, {"0x1p99999999999", 0x7F800000},
+  };
+  for (const Case &c : CASES)
+    EXPECT_EQ(bits(str_to_float(c.str, nullptr)), c.bits) << c.str;
+}
+
 }  // namespace esphome::core::testing
+#endif  // USE_HOST

tests/components/cst226/common.h

@@ -20,14 +20,7 @@ class FakePin final : public GPIOPin {
   bool level{false};
 };
 
-// Fills a 16-bit register read: the firmware check code read gets a valid code, other registers zeros.
-inline void answer_setup_read(const uint8_t *data, size_t size, uint8_t *out, size_t out_size) {
-  std::memset(out, 0, out_size);
-  if (size == 2 && encode_uint16(data[0], data[1]) == cstxxx::REG_FW_CHECK_CODE && out_size == 4)
-    out[2] = out[3] = 0xCA;
-}
-
-// Answers the 8-bit status read with a set report and 16-bit setup reads through answer_setup_read().
+// Answers the 8-bit status read with a set report and 16-bit setup reads with zeros.
 class StatusBus final : public i2c::I2CBus {
  public:
   std::array<uint8_t, 28> status{};
@@ -42,7 +35,7 @@ class StatusBus final : public i2c::I2CBus {
     if (size == 1 && data[0] == CST226_REG_STATUS) {
       std::memcpy(out, this->status.data(), std::min(out_size, this->status.size()));
     } else {
-      answer_setup_read(data, size, out, out_size);
+      std::memset(out, 0, out_size);
     }
     return i2c::ERROR_OK;
   }

tests/components/cst226/touchscreen/cst226_touchscreen_test.cpp

@@ -1,8 +1,5 @@
 #include <gtest/gtest.h>
 
-#include <cstring>
-#include <vector>
-
 #include "esphome/components/cst226/touchscreen/cst226_touchscreen.h"
 #include "../common.h"
 
@@ -17,45 +14,6 @@ TEST(CST226TouchscreenTest, SetupCompletes) {
   EXPECT_FALSE(hub.is_failed());
 }
 
-// Records the writes that carry no read, and answers reads through answer_setup_read().
-class WriteLogBus final : public i2c::I2CBus {
- public:
-  std::vector<std::vector<uint8_t>> writes;
-  bool bad_check_code{false};
-
-  i2c::ErrorCode write_readv(uint8_t address, const uint8_t *data, size_t size, uint8_t *out,
-                             size_t out_size) override {
-    if (out_size == 0) {
-      this->writes.emplace_back(data, data + size);
-    } else {
-      answer_setup_read(data, size, out, out_size);
-      if (this->bad_check_code)
-        std::memset(out, 0, out_size);
-    }
-    return i2c::ERROR_OK;
-  }
-};
-
-TEST(CST226TouchscreenTest, SetupEntersCommandModeAndLeavesIt) {
-  WriteLogBus bus;
-  CST226Touchscreen hub;
-  hub.set_i2c_bus(&bus);
-  hub.setup();
-  ASSERT_GE(bus.writes.size(), 2u);
-  EXPECT_EQ(bus.writes.front(), (std::vector<uint8_t>{0xD1, 0x01}));
-  EXPECT_EQ(bus.writes.back(), (std::vector<uint8_t>{0xD1, 0x09}));
-  EXPECT_FALSE(hub.is_failed());
-}
-
-TEST(CST226TouchscreenTest, SetupFailsOnAWrongCheckCode) {
-  WriteLogBus bus;
-  bus.bad_check_code = true;
-  CST226Touchscreen hub;
-  hub.set_i2c_bus(&bus);
-  hub.setup();
-  EXPECT_TRUE(hub.is_failed());
-}
-
 TEST(CST226TouchscreenTest, SetupFailsWithoutTheChip) {
   StatusBus bus;
   bus.fail = true;

tests/components/cstxxx/cstxxx_decode_touch_test.cpp

@@ -1,32 +0,0 @@
-#include <gtest/gtest.h>
-
-#include <algorithm>
-
-#include "esphome/components/cstxxx/cstxxx.h"
-
-namespace esphome::cstxxx::testing {
-
-TEST(CSTxxxDecodeTouch, FirstRecordStartsTheReport) {
-  const uint8_t report[report_size(1)] = {0x16, 0x12, 0x34, 0x56, 0x78, 0x01, SYNC_BYTE};
-  auto touch = decode_touch(report, 0);
-  EXPECT_EQ(touch.id, 1);
-  EXPECT_EQ(touch.event, 0x06);
-  EXPECT_EQ(touch.x, 0x125);
-  EXPECT_EQ(touch.y, 0x346);
-  EXPECT_EQ(touch.z, 0x78);
-}
-
-TEST(CSTxxxDecodeTouch, LaterRecordsSkipTheStatusBytes) {
-  uint8_t report[report_size(3)]{};
-  report[FINGER_COUNT_IDX] = 3;
-  report[SYNC_IDX] = SYNC_BYTE;
-  const uint8_t third[5] = {0x26, 0xFF, 0x00, 0xF0, 0x05};
-  std::copy(third, third + 5, report + 12);
-  auto touch = decode_touch(report, 2);
-  EXPECT_EQ(touch.id, 2);
-  EXPECT_EQ(touch.x, 0xFFF);
-  EXPECT_EQ(touch.y, 0x000);
-  EXPECT_EQ(touch.z, 5);
-}
-
-}  // namespace esphome::cstxxx::testing

tests/components/ethernet_info/test.esp32-idf.yaml

@@ -2,7 +2,3 @@ packages:
   i2c: !include ../../test_build_components/common/i2c/esp32-idf.yaml
 
 <<: !include common.yaml
-
-# IPv6 with an IP sensor: compiles the IPv6 event handler's listener notification
-network:
-  enable_ipv6: true

tests/components/sx126x/__init__.py

@@ -1,16 +0,0 @@
-"""Enable real logger callbacks for radio reentrancy regression tests."""
-
-import esphome.codegen as cg
-from esphome.components.logger import request_log_listener
-from esphome.types import ConfigType
-from tests.testing_helpers import ComponentManifestOverride
-
-
-def override_manifest(manifest: ComponentManifestOverride) -> None:
-    async def to_code(config: ConfigType) -> None:
-        request_log_listener()
-        # The tests build a software SPI bus in C++, which no configured bus asks for
-        cg.add_define("USE_SPI_SOFTWARE")
-
-    manifest.multi_conf = False
-    manifest.to_code = to_code

tests/components/sx126x/common-actions.yaml

@@ -7,22 +7,3 @@ button:
           cold: true
       - sx126x.set_mode_sleep:
           cold: !lambda return id(sx126x_my_number).state > 1;
-
-  - platform: template
-    name: "SX126x Async Send or Cancel"
-    on_press:
-      - lambda: |-
-          class Listener : public sx126x::SX126xTransmitListener {
-           public:
-            void on_transmit_complete(sx126x::SX126xError result) override {
-              ESP_LOGD("sx126x_test", "Async completion: %d", static_cast<int>(result));
-            }
-          };
-          static Listener listener;
-          if (id(sx126x_radio).is_transmitting()) {
-            id(sx126x_radio).cancel_transmit_async(&listener);
-          } else {
-            const uint8_t data[] = {0x11, 0x22, 0x33};
-            auto result = id(sx126x_radio).start_transmit_async(&listener, data, sizeof(data), 4000);
-            ESP_LOGD("sx126x_test", "Async admission: %d", static_cast<int>(result));
-          }

tests/components/sx126x/common.yaml

@@ -1,5 +1,4 @@
 sx126x:
-  id: sx126x_radio
   dio1_pin: ${dio1_pin}
   cs_pin: ${cs_pin}
   busy_pin: ${busy_pin}

tests/components/sx126x/sx126x_async_test.cpp

@@ -1,643 +0,0 @@
-#include "sx126x_test_helpers.h"
-#include "esphome/core/application.h"
-#include <tuple>
-
-namespace esphome::sx126x::testing {
-
-class TransmitListener : public SX126xTransmitListener {
- public:
-  void on_transmit_complete(SX126xError result) override {
-    this->results.push_back(result);
-    if (this->on_complete) {
-      this->on_complete(result);
-    }
-  }
-  std::vector<SX126xError> results;
-  std::function<void(SX126xError)> on_complete;
-};
-
-class ReceiveCallback : public SX126xListener {
- public:
-  void on_packet(const std::vector<uint8_t> &packet, float rssi, float snr) override { this->on_packet_callback(); }
-  std::function<void()> on_packet_callback;
-};
-
-class SX126xAsyncModes : public ::testing::TestWithParam<std::tuple<bool, bool, bool>> {};
-
-TEST_P(SX126xAsyncModes, ReturnsBeforeCompletionAndRestoresMode) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(lora, rx, fixed);
-  hw.auto_complete = false;
-  hw.clear_trace();
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 1234), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_TRUE(listener.results.empty());
-  EXPECT_EQ(hw.sends, 1u);
-  const auto &tx = hw.transactions.back();
-  EXPECT_EQ(tx, (std::vector<uint8_t>{RADIO_SET_TX, 0x01, 0x34, 0x80}));
-  const auto fifo = std::find_if(hw.transactions.begin(), hw.transactions.end(),
-                                 [](const auto &cmd) { return cmd[0] == RADIO_WRITE_BUFFER; });
-  ASSERT_NE(fifo, hw.transactions.end());
-  EXPECT_EQ(*fifo, (std::vector<uint8_t>{RADIO_WRITE_BUFFER, 0, 0x11, 0x22, 0x33}));
-  hw.packet.assign(3, 0x99);  // The driver must not retain the caller's payload.
-  hw.irq = IRQ_TX_DONE;
-  listener.on_complete = [&](SX126xError result) {
-    EXPECT_FALSE(hw.radio.is_transmitting());
-    EXPECT_EQ(hw.receiving, rx);
-    EXPECT_TRUE(hw.cs.level);
-  };
-  hw.radio.loop();
-  hw.radio.loop();
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST_P(SX126xAsyncModes, RejectsEveryFailedStartWithoutCallbackAndCanRetry) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware reference;
-  TransmitListener listener;
-  reference.configure(lora, rx, fixed);
-  reference.clear_trace();
-  ASSERT_EQ(reference.radio.start_transmit_async(&listener, reference.packet), SX126xError::SX126X_ERROR_NONE);
-  const size_t count = reference.transactions.size();
-  reference.radio.cancel_transmit_async(&listener);
-  for (size_t fault = 1; fault <= count; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hw;
-    TransmitListener result;
-    hw.configure(lora, rx, fixed);
-    hw.clear_trace();
-    hw.fail_at = fault;
-    EXPECT_EQ(hw.radio.start_transmit_async(&result, hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-    EXPECT_TRUE(result.results.empty());
-    EXPECT_FALSE(hw.radio.is_transmitting());
-    EXPECT_TRUE(hw.cs.level);
-    EXPECT_TRUE(hw.transactions[fault - 1].empty());
-    EXPECT_EQ(hw.sends, 0u);
-    EXPECT_EQ(hw.receiving, rx);  // One-shot fault permits failed-start cleanup.
-    hw.clear_trace();
-    hw.radio.configure();
-    ASSERT_EQ(hw.radio.start_transmit_async(&result, hw.packet), SX126xError::SX126X_ERROR_NONE);
-    hw.radio.loop();
-    EXPECT_EQ(result.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-  }
-}
-
-TEST_P(SX126xAsyncModes, ReportsEveryCompletionAndCleanupFailureOnce) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware reference;
-  TransmitListener listener;
-  reference.configure(lora, rx, fixed);
-  ASSERT_EQ(reference.radio.start_transmit_async(&listener, reference.packet), SX126xError::SX126X_ERROR_NONE);
-  reference.clear_trace();
-  reference.radio.loop();
-  const size_t count = reference.transactions.size();
-  for (size_t fault = 1; fault <= count; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hw;
-    TransmitListener result;
-    hw.configure(lora, rx, fixed);
-    ASSERT_EQ(hw.radio.start_transmit_async(&result, hw.packet), SX126xError::SX126X_ERROR_NONE);
-    hw.clear_trace();
-    hw.fail_at = fault;
-    hw.radio.loop();
-    EXPECT_EQ(result.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_BUSY_TIMEOUT}));
-    EXPECT_TRUE(hw.transactions[fault - 1].empty());
-    EXPECT_TRUE(hw.cs.level);
-    EXPECT_FALSE(hw.radio.is_transmitting());
-    hw.radio.loop();
-    EXPECT_EQ(result.results.size(), 1u);
-    hw.clear_trace();
-    hw.radio.configure();
-    ASSERT_EQ(hw.radio.start_transmit_async(&result, hw.packet), SX126xError::SX126X_ERROR_NONE);
-    hw.radio.loop();
-    ASSERT_EQ(result.results.size(), 2u);
-    EXPECT_EQ(result.results.back(), SX126xError::SX126X_ERROR_NONE);
-    EXPECT_EQ(hw.receiving, rx);
-  }
-}
-
-TEST_P(SX126xAsyncModes, BlockingAndAsyncUseTheSameCommandSequence) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware blocking, async;
-  TransmitListener listener;
-  blocking.configure(lora, rx, fixed);
-  async.configure(lora, rx, fixed);
-  blocking.clear_trace();
-  async.clear_trace();
-  ASSERT_EQ(blocking.radio.transmit_packet(blocking.packet), SX126xError::SX126X_ERROR_NONE);
-  ASSERT_EQ(async.radio.start_transmit_async(&listener, async.packet), SX126xError::SX126X_ERROR_NONE);
-  async.radio.loop();
-  EXPECT_EQ(blocking.transactions, async.transactions);
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-  EXPECT_EQ(blocking.receiving, async.receiving);
-}
-
-INSTANTIATE_TEST_SUITE_P(LoRaAndFSKWithRxOrSleepAndFixedOrVariablePayload, SX126xAsyncModes,
-                         ::testing::Combine(::testing::Bool(), ::testing::Bool(), ::testing::Bool()));
-
-TEST(SX126xAsync, SoftwareDeadlineWithoutDioAndCachedTickBeforeStart) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  hw.dio.internal = true;
-  const uint32_t before = millis();
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 50), SX126xError::SX126X_ERROR_NONE);
-  const uint32_t after = millis();
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, before - 1};
-    hw.radio.call();
-    EXPECT_TRUE(listener.results.empty());  // No unsigned underflow on the admitting loop tick.
-  }
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, after + 51};
-    hw.radio.call();  // Still enabled despite no IRQ or ISR edge.
-  }
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_TIMEOUT}));
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_FALSE(hw.radio.is_transmitting());
-}
-
-TEST(SX126xAsync, UnrelatedIrqIsNotSuccessAndTimeoutWinsOverTxDone) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.irq = IRQ_RX_DONE;
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, millis()};
-    hw.radio.loop();
-  }
-  EXPECT_TRUE(listener.results.empty());
-  hw.irq = IRQ_TX_DONE | IRQ_RX_TX_TIMEOUT;
-  hw.radio.loop();
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_TIMEOUT}));
-}
-
-TEST(SX126xAsync, CancelRequiresOwnerAndCompletesSynchronouslyOnce) {
-  RadioHardware hw;
-  TransmitListener listener, other;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(&listener));
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(nullptr));
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(&other));
-  EXPECT_TRUE(hw.radio.cancel_transmit_async(&listener));
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_CANCELLED}));
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(&listener));
-  hw.irq = IRQ_TX_DONE;  // A late IRQ cannot deliver a second completion.
-  hw.radio.loop();
-  EXPECT_EQ(listener.results.size(), 1u);
-  EXPECT_TRUE(hw.receiving);
-  hw.irq = IRQ_TX_DONE;  // Also cleared before a new send starts.
-  ASSERT_EQ(hw.radio.start_transmit_async(&other, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, millis()};
-    hw.radio.loop();
-  }
-  EXPECT_TRUE(other.results.empty());
-  EXPECT_TRUE(hw.radio.cancel_transmit_async(&other));
-}
-
-TEST(SX126xAsync, CompletionCallbackCanStartNextSend) {
-  RadioHardware hw;
-  TransmitListener first, second;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  first.on_complete = [&](SX126xError result) {
-    EXPECT_EQ(hw.radio.start_transmit_async(&second, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  };
-  ASSERT_EQ(hw.radio.start_transmit_async(&first, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(first.results.size(), 1u);
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_TRUE(second.results.empty());
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(second.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-static void expect_conflicting_calls_rejected(RadioHardware &hw, TransmitListener &listener) {
-  const size_t count = hw.transactions.size();
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  hw.radio.set_mode_rx();
-  hw.radio.set_mode_tx();
-  hw.radio.set_mode_standby(STDBY_XOSC);
-  hw.radio.set_mode_sleep(true);
-  hw.radio.configure();
-  hw.radio.run_image_cal();
-  EXPECT_EQ(hw.transactions.size(), count);
-}
-
-TEST(SX126xAsync, PendingReceiveRejectsAdmissionWithoutDispatchOrAcknowledgment) {
-  RadioHardware hw;
-  TransmitListener listener;
-  PacketListener receiver;
-  hw.configure(true, true);
-  hw.radio.register_listener(&receiver);
-  hw.irq = IRQ_RX_DONE;
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  EXPECT_TRUE(receiver.packets.empty());
-  EXPECT_TRUE(listener.results.empty());
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  hw.radio.loop();
-  EXPECT_EQ(receiver.packets.size(), 1u);
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  expect_conflicting_calls_rejected(hw, listener);
-  hw.radio.loop();
-  EXPECT_EQ(listener.results.size(), 1u);
-}
-
-TEST(SX126xAsync, ValidatesReadinessPayloadAndTimeoutWithoutSpi) {
-  RadioHardware hw;
-  TransmitListener listener;
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hw.transactions.empty());
-  hw.configure(true, true, true);
-  hw.clear_trace();
-  EXPECT_EQ(hw.radio.start_transmit_async(nullptr, hw.packet), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, nullptr, 3), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet.data(), 0), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet.data(), 2), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet.data(), 256), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 0), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 262144), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_TRUE(listener.results.empty());
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 262143), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_EQ(hw.transactions.back(), (std::vector<uint8_t>{RADIO_SET_TX, 0xFF, 0xFF, 0xC0}));
-  hw.radio.loop();
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet, 1), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_EQ(hw.transactions.back(), (std::vector<uint8_t>{RADIO_SET_TX, 0, 0, 64}));
-  hw.radio.loop();
-}
-
-TEST(SX126xAsync, PersistentBusyReportsFailedCleanupAndAllowsLaterRecovery) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.busy.on_read = []() { return true; };
-  ASSERT_TRUE(hw.radio.cancel_transmit_async(&listener));
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_BUSY_TIMEOUT}));
-  EXPECT_FALSE(hw.radio.is_transmitting());
-  EXPECT_TRUE(hw.radio.status_has_warning());
-  EXPECT_TRUE(hw.cs.level);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_EQ(listener.results.size(), 1u);  // Failed admission never invokes completion.
-  hw.busy.on_read = []() { return false; };
-  hw.radio.configure();
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  ASSERT_EQ(listener.results.size(), 2u);
-  EXPECT_EQ(listener.results.back(), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_FALSE(hw.radio.status_has_warning());
-}
-
-TEST(SX126xAsync, CancellationCallbackMayStartAnotherSend) {
-  RadioHardware hw;
-  TransmitListener first, second;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  first.on_complete = [&](SX126xError result) {
-    EXPECT_EQ(result, SX126xError::SX126X_ERROR_CANCELLED);
-    EXPECT_EQ(hw.radio.start_transmit_async(&second, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  };
-  ASSERT_EQ(hw.radio.start_transmit_async(&first, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_TRUE(hw.radio.cancel_transmit_async(&first));
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(&first));
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(second.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST(SX126xAsync, RejectsAfterFailedSetupWithoutBusAccess) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.fail_at = 1;
-  hw.configure(true, true);
-  ASSERT_TRUE(hw.radio.is_failed());
-  hw.clear_trace();
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_TRUE(listener.results.empty());
-}
-
-TEST(SX126xAsync, TwoRadiosHaveIndependentOwnersAndCompletion) {
-  RadioHardware a, b;
-  TransmitListener first, second;
-  a.configure(true, true);
-  b.configure(false, false);
-  a.auto_complete = b.auto_complete = false;
-  ASSERT_EQ(a.radio.start_transmit_async(&first, a.packet), SX126xError::SX126X_ERROR_NONE);
-  ASSERT_EQ(b.radio.start_transmit_async(&second, b.packet), SX126xError::SX126X_ERROR_NONE);
-  a.radio.cancel_transmit_async(&first);
-  EXPECT_TRUE(b.radio.is_transmitting());
-  EXPECT_TRUE(second.results.empty());
-  b.irq = IRQ_TX_DONE;
-  b.radio.loop();
-  EXPECT_EQ(first.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_CANCELLED}));
-  EXPECT_EQ(second.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST(SX126xAsync, BackToBackReceiveEchoPreservesBorrowedPacketForAllListeners) {
-  class EchoListener : public SX126xListener {
-   public:
-    std::function<void(const std::vector<uint8_t> &)> callback;
-    void on_packet(const std::vector<uint8_t> &packet, float rssi, float snr) override { callback(packet); }
-  } echo;
-  RadioHardware hw;
-  TransmitListener tx;
-  PacketListener observer;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  hw.radio.register_listener(&echo);
-  hw.radio.register_listener(&observer);
-  const auto first = hw.packet;
-  const std::vector<uint8_t> second(200, 0xA5);
-  unsigned calls = 0;
-  echo.callback = [&](const std::vector<uint8_t> &packet) {
-    if (++calls == 1) {
-      hw.packet = second;  // Larger back-to-back RX could reallocate the driver's packet_.
-      hw.irq = IRQ_RX_DONE;
-      const auto count = hw.transactions.size();
-      hw.radio.loop();  // Explicit loop reentry must not overwrite the borrowed RX buffer either.
-      // The send stops in standby and holds the new packet instead of overwriting the FIFO.
-      EXPECT_EQ(hw.radio.start_transmit_async(&tx, packet), SX126xError::SX126X_ERROR_BUSY);
-      ASSERT_EQ(hw.transactions.size(), count + 2);
-      EXPECT_EQ(hw.transactions[count][0], RADIO_SET_STANDBY);
-      EXPECT_EQ(hw.transactions.back()[0], RADIO_GET_IRQSTATUS);
-      EXPECT_EQ(packet, first);
-    } else {
-      EXPECT_EQ(packet, second);
-      EXPECT_EQ(hw.radio.start_transmit_async(&tx, packet), SX126xError::SX126X_ERROR_NONE);
-    }
-  };
-  hw.irq = IRQ_RX_DONE;
-  hw.radio.loop();
-  ASSERT_EQ(observer.packets.size(), 1u);
-  EXPECT_EQ(observer.packets[0], first);
-  EXPECT_TRUE(tx.results.empty());
-  EXPECT_FALSE(hw.radio.is_transmitting());
-  hw.radio.loop();
-  ASSERT_EQ(observer.packets.size(), 2u);
-  EXPECT_EQ(observer.packets[1], second);
-  ASSERT_EQ(calls, 2u);
-  auto fifo = std::find_if(hw.transactions.rbegin(), hw.transactions.rend(),
-                           [](const auto &cmd) { return !cmd.empty() && cmd[0] == RADIO_WRITE_BUFFER; });
-  ASSERT_NE(fifo, hw.transactions.rend());
-  EXPECT_EQ(std::vector<uint8_t>(fifo->begin() + 2, fifo->end()), second);
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(tx.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST(SX126xAsync, FailedReconfigurationRejectsAsyncUntilReconfigured) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(true, true);
-  hw.clear_trace();
-  hw.fail_at = 3;
-  hw.radio.configure();
-  hw.clear_trace();
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_TRUE(listener.results.empty());
-  hw.radio.configure();
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.loop();
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST(SX126xAsync, BlockingSendUsesIrqResultInsteadOfTreatingAnyDioAsSuccess) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  auto write = hw.cs.on_write;
-  hw.cs.on_write = [&](bool high) {
-    write(high);
-    if (high && !hw.transactions.back().empty() && hw.transactions.back()[0] == RADIO_SET_TX) {
-      hw.irq = IRQ_RX_TX_TIMEOUT;
-    }
-  };
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_TIMEOUT);
-  EXPECT_TRUE(hw.receiving);
-}
-
-TEST(SX126xAsync, FailedAdmissionRestoresReceivePollingWithoutAnotherTransmission) {
-  RadioHardware hw;
-  PacketListener rx;
-  TransmitListener tx;
-  hw.configure(true, true);
-  hw.radio.register_listener(&rx);
-  const auto configured_params = hw.packet_params;
-  hw.dio.internal = true;
-  hw.radio.call();
-  ASSERT_TRUE(hw.radio.is_idle());
-  hw.clear_trace();
-  hw.fail_at = 3;
-  EXPECT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-  EXPECT_TRUE(tx.results.empty());
-  EXPECT_TRUE(hw.radio.is_in_loop_state());
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.packet_params, configured_params);
-  hw.clear_trace();
-  hw.irq = IRQ_RX_DONE;  // No simulated ISR edge: restoration must re-enable polling.
-  hw.radio.call();
-  ASSERT_EQ(rx.packets.size(), 1u);
-  EXPECT_EQ(rx.packets[0], hw.packet);
-  EXPECT_EQ(hw.sends, 0u);
-}
-
-TEST_P(SX126xAsyncModes, ReceiveAtStandbyRejectsSendAndSurvivesReadFailure) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware hw;
-  PacketListener received;
-  TransmitListener tx;
-  hw.configure(lora, rx, fixed);
-  hw.radio.call();  // Advance from setup into ESPHome loop scheduling.
-  hw.radio.register_listener(&received);
-  hw.clear_trace();
-  auto write = hw.cs.on_write;
-  bool inject = true;
-  hw.cs.on_write = [&](bool high) {
-    write(high);
-    if (high && inject && !hw.transactions.back().empty() && hw.transactions.back()[0] == RADIO_SET_STANDBY) {
-      inject = false;
-      hw.irq = IRQ_RX_DONE;
-    }
-  };
-  EXPECT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  EXPECT_TRUE(tx.results.empty());
-  EXPECT_TRUE(received.packets.empty());
-  EXPECT_FALSE(hw.receiving);
-  EXPECT_FALSE(hw.radio.is_transmitting());
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  ASSERT_EQ(hw.transactions.size(), 2u);
-  EXPECT_EQ(hw.transactions[0][0], RADIO_SET_STANDBY);
-  EXPECT_EQ(hw.transactions[1][0], RADIO_GET_IRQSTATUS);
-  const auto resets = hw.rst.writes;
-  hw.radio.set_mode_rx();
-  EXPECT_EQ(hw.rst.writes, resets);
-  EXPECT_EQ(hw.transactions.size(), 2u);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  EXPECT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  EXPECT_FALSE(hw.radio.cancel_transmit_async(&tx));
-
-  hw.clear_trace();
-  hw.fail_at = 2;  // Packet metadata read fails after the held IRQ is read.
-  hw.radio.loop();
-  EXPECT_TRUE(hw.radio.is_in_loop_state());
-  EXPECT_TRUE(received.packets.empty());
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  EXPECT_FALSE(hw.receiving);
-  hw.clear_trace();
-  LoopBlockingGuard retry{nullptr, nullptr, App.get_loop_component_start_time() + 200};
-  hw.radio.loop();
-  hw.radio.loop();
-  ASSERT_EQ(received.packets.size(), 1u);
-  EXPECT_EQ(received.packets[0], hw.packet);
-  EXPECT_EQ(hw.receiving, rx);
-  EXPECT_EQ(hw.sends, 0u);
-  EXPECT_TRUE(tx.results.empty());
-  ASSERT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.loop();
-  EXPECT_EQ(tx.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST_P(SX126xAsyncModes, FailedPreparationAndRestorationRequireSuccessfulConfiguration) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(lora, rx, fixed);
-  hw.clear_trace();
-  const auto busy = hw.busy.on_read;
-  hw.busy.on_read = [&]() { return hw.transactions.size() >= 3 || busy(); };
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-  EXPECT_TRUE(listener.results.empty());
-  EXPECT_EQ(hw.sends, 0u);
-  EXPECT_FALSE(hw.radio.is_transmitting());
-  EXPECT_TRUE(hw.cs.level);
-  ASSERT_EQ(hw.transactions.size(), 4u);
-  EXPECT_TRUE(hw.transactions[2].empty());  // Failed preparation.
-  EXPECT_TRUE(hw.transactions[3].empty());  // Failed restoration.
-  hw.clear_trace();
-  hw.busy.on_read = busy;
-  hw.radio.set_mode_rx();
-  hw.radio.loop();
-  EXPECT_TRUE(hw.radio.is_idle());
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hw.transactions.empty());
-  hw.fail_at = 1;
-  hw.radio.configure();
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  hw.clear_trace();
-  hw.radio.configure();
-  EXPECT_TRUE(hw.radio.is_in_loop_state());
-  EXPECT_EQ(hw.receiving, rx);
-  EXPECT_TRUE(listener.results.empty());
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.loop();
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-TEST(SX126xAsync, ExplicitConfigurationCanRecoverAnUnreadableHeldPacket) {
-  RadioHardware hw;
-  TransmitListener listener;
-  hw.configure(true, true);
-  auto write = hw.cs.on_write;
-  hw.cs.on_write = [&](bool high) {
-    write(high);
-    if (high && !hw.transactions.back().empty() && hw.transactions.back()[0] == RADIO_SET_STANDBY) {
-      hw.irq = IRQ_RX_DONE;
-    }
-  };
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  hw.cs.on_write = write;
-  hw.busy.on_read = []() { return true; };
-  hw.radio.loop();
-  const auto resets = hw.rst.writes;
-  hw.radio.configure();
-  EXPECT_GT(hw.rst.writes, resets);
-  EXPECT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  hw.busy.on_read = []() { return false; };
-  hw.radio.configure();
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_TRUE(listener.results.empty());
-  ASSERT_EQ(hw.radio.start_transmit_async(&listener, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.loop();
-  EXPECT_EQ(listener.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-}
-
-class SX126xReceiveActions : public ::testing::TestWithParam<unsigned> {};
-
-TEST_P(SX126xReceiveActions, ModeAndConfigurationPreserveBorrowedPacket) {
-  RadioHardware hw;
-  ReceiveCallback action;
-  PacketListener observer;
-  hw.configure(true, true);
-  hw.radio.register_listener(&action);
-  hw.radio.register_listener(&observer);
-  const auto original = hw.packet;
-  const unsigned selected_action = GetParam();
-  unsigned callbacks = 0;
-  action.on_packet_callback = [&]() {
-    callbacks++;
-    hw.clear_trace();
-    switch (selected_action) {
-      case 0:
-        hw.radio.set_mode_sleep();
-        break;
-      case 1:
-        hw.radio.set_mode_sleep(true);
-        break;
-      case 2:
-        hw.radio.set_rx_start(false);
-        hw.radio.configure();
-        break;
-      case 3:
-        hw.radio.set_mode_standby(STDBY_XOSC);
-        break;
-      case 4:
-        hw.radio.set_mode_rx();
-        break;
-      case 5:
-        hw.radio.run_image_cal();
-        break;
-      default:
-        FAIL() << "Unknown action " << selected_action;
-    }
-    EXPECT_FALSE(hw.transactions.empty());  // The requested operation must actually reach the chip.
-    EXPECT_EQ(hw.receiving, selected_action >= 4);
-    const auto commands = hw.transactions.size();
-    hw.packet.assign(19, 0x99);
-    hw.irq = IRQ_RX_DONE;
-    hw.radio.loop();  // Recursive packet delivery is still forbidden, including after configure().
-    EXPECT_EQ(hw.transactions.size(), commands);
-  };
-  hw.irq = IRQ_RX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(callbacks, 1u);
-  ASSERT_EQ(observer.packets.size(), 1u);
-  EXPECT_EQ(observer.packets.front(), original);
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);  // The next packet is left for a later loop.
-  if (selected_action == 1) {
-    TransmitListener tx;
-    EXPECT_EQ(hw.radio.start_transmit_async(&tx, original), SX126xError::SX126X_ERROR_NOT_READY);
-  }
-}
-
-INSTANTIATE_TEST_SUITE_P(SleepColdSleepConfigureStandbyRxAndCalibration, SX126xReceiveActions,
-                         ::testing::Range(0u, 6u));
-
-}  // namespace esphome::sx126x::testing

tests/components/sx126x/sx126x_busy_test.cpp

@@ -1,788 +0,0 @@
-#include "sx126x_test_helpers.h"
-#include <cmath>
-#include "esphome/core/application.h"
-#include <tuple>
-#include <type_traits>
-#ifdef USE_HOST
-#include <string>
-#include "esphome/components/logger/logger.h"
-#endif
-namespace esphome::sx126x::testing {
-class SX126xBusySetup : public ::testing::TestWithParam<std::tuple<bool, bool>> {};
-
-TEST_P(SX126xBusySetup, StopsAtEveryConfigurationCommand) {
-  const auto [lora, rx] = GetParam();
-  RadioHardware reference;
-  reference.configure(lora, rx);
-  ASSERT_FALSE(reference.radio.is_failed());
-  ASSERT_FALSE(reference.radio.status_has_warning());
-  const size_t count = reference.transactions.size();
-  ASSERT_GT(count, 10u);
-  for (size_t fault = 1; fault <= count; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hardware;
-    hardware.fail_at = fault;
-    hardware.configure(lora, rx);
-    hardware.expect_aborted(fault);
-    EXPECT_TRUE(hardware.radio.is_failed());
-    hardware.radio.dump_config();  // Also safe if the version read never happened.
-    hardware.clear_trace();
-    hardware.radio.configure();
-    hardware.radio.set_mode_rx();
-    hardware.radio.set_mode_tx();
-    hardware.radio.set_mode_sleep();
-    hardware.radio.set_mode_standby(STDBY_XOSC);
-    hardware.radio.run_image_cal();
-    hardware.radio.loop();
-    EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    EXPECT_TRUE(hardware.transactions.empty());
-  }
-}
-
-INSTANTIATE_TEST_SUITE_P(LoRaAndFSKWithRxOrSleep, SX126xBusySetup,
-                         ::testing::Combine(::testing::Bool(), ::testing::Bool()));
-
-class SX126xBusyTransmit : public ::testing::TestWithParam<std::tuple<bool, bool, bool>> {};
-
-TEST_P(SX126xBusyTransmit, StopsAtEverySendAndCleanupCommandAndCanRetry) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware reference;
-  reference.configure(lora, rx, fixed);
-  reference.clear_trace();
-  ASSERT_EQ(reference.radio.transmit_packet(reference.packet), SX126xError::SX126X_ERROR_NONE);
-  const size_t count = reference.transactions.size();
-  for (size_t fault = 1; fault <= count; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hardware;
-    hardware.configure(lora, rx, fixed);
-    hardware.clear_trace();
-    hardware.fail_at = fault;
-    EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet.data(), hardware.packet.size()),
-              SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-    EXPECT_TRUE(hardware.transactions[fault - 1].empty());
-    EXPECT_TRUE(hardware.cs.level);
-    EXPECT_FALSE(hardware.radio.is_failed());
-    hardware.clear_trace();
-    hardware.radio.configure();
-    EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NONE);
-    EXPECT_FALSE(hardware.radio.status_has_warning());
-    EXPECT_EQ(hardware.receiving, rx);
-  }
-}
-
-TEST_P(SX126xBusyTransmit, RestoresEveryPreparationFailureWithoutAnotherTransmission) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware reference;
-  reference.configure(lora, rx, fixed);
-  reference.clear_trace();
-  ASSERT_EQ(reference.radio.transmit_packet(reference.packet), SX126xError::SX126X_ERROR_NONE);
-  size_t tx_command = 0;
-  for (size_t i = 0; i < reference.transactions.size(); i++) {
-    if (reference.transactions[i][0] == RADIO_SET_TX) {
-      tx_command = i + 1;
-      break;
-    }
-  }
-  ASSERT_NE(tx_command, 0u);
-  for (size_t fault = 1; fault <= tx_command; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hw;
-    PacketListener listener;
-    hw.configure(lora, rx, fixed);
-    hw.radio.register_listener(&listener);
-    const auto configured_params = hw.packet_params;
-    hw.clear_trace();
-    hw.fail_at = fault;
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-    EXPECT_TRUE(hw.transactions[fault - 1].empty());
-    EXPECT_TRUE(hw.cs.level);
-    EXPECT_EQ(hw.ends, hw.transactions.size());
-    EXPECT_EQ(hw.receiving, rx);
-    EXPECT_EQ(hw.packet_params, configured_params);
-    EXPECT_EQ(hw.irq, 0u);
-    EXPECT_FALSE(hw.radio.status_has_warning());
-    EXPECT_FALSE(hw.radio.is_failed());
-    const auto sends = hw.sends;
-    hw.clear_trace();
-    if (rx) {
-      if (!fixed) {
-        hw.packet.resize(9, 0x55);  // RX must accept a different length than the attempted TX.
-      }
-      hw.irq = IRQ_RX_DONE;
-      hw.radio.loop();
-      ASSERT_EQ(listener.packets.size(), 1u);
-      EXPECT_EQ(listener.packets[0], hw.packet);
-    }
-    EXPECT_EQ(hw.sends, sends);
-  }
-}
-
-TEST_P(SX126xBusyTransmit, FailedRestorationRequiresConfigureBeforeReceiveRecovery) {
-  const auto [lora, rx, fixed] = GetParam();
-  RadioHardware reference;
-  reference.configure(lora, rx, fixed);
-  reference.clear_trace();
-  ASSERT_EQ(reference.radio.transmit_packet(reference.packet), SX126xError::SX126X_ERROR_NONE);
-  size_t restoration = 0;
-  bool sent = false;
-  for (size_t i = 0; i < reference.transactions.size(); i++) {
-    if (reference.transactions[i][0] == RADIO_SET_TX) {
-      sent = true;
-    }
-    if (sent && reference.transactions[i][0] == RADIO_SET_STANDBY) {
-      restoration = i + 1;
-      break;
-    }
-  }
-  ASSERT_NE(restoration, 0u);
-  for (size_t fault = restoration; fault <= reference.transactions.size(); fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hw;
-    PacketListener listener;
-    hw.configure(lora, rx, fixed);
-    hw.radio.register_listener(&listener);
-    const auto configured_params = hw.packet_params;
-    hw.clear_trace();
-    hw.fail_at = fault;
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-    EXPECT_TRUE(hw.cs.level);
-    EXPECT_TRUE(hw.radio.status_has_warning());
-    EXPECT_FALSE(hw.radio.is_failed());
-    const auto sends = hw.sends;
-    hw.clear_trace();  // Clearing BUSY alone must not re-admit partial configuration.
-    hw.irq = IRQ_RX_DONE;
-    hw.radio.loop();
-    hw.radio.set_mode_rx();
-    hw.radio.set_mode_tx();
-    hw.radio.set_mode_standby(STDBY_XOSC);
-    hw.radio.set_mode_sleep();
-    hw.radio.run_image_cal();
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    EXPECT_TRUE(hw.transactions.empty());
-    EXPECT_TRUE(listener.packets.empty());
-    EXPECT_TRUE(hw.radio.status_has_warning());
-    hw.irq = 0;  // Hardware reset clears IRQs; the GPIO fake does not model reset.
-    hw.radio.configure();
-    EXPECT_FALSE(hw.radio.status_has_warning());
-    EXPECT_EQ(hw.packet_params, configured_params);
-    EXPECT_EQ(hw.receiving, rx);
-    if (rx) {
-      hw.irq = IRQ_RX_DONE;
-      hw.radio.loop();
-      ASSERT_EQ(listener.packets.size(), 1u);
-      EXPECT_EQ(listener.packets[0], hw.packet);
-    }
-    EXPECT_EQ(hw.sends, sends);  // Recovery must not depend on sending another packet.
-  }
-}
-
-TEST(SX126xBusy, PersistentBusyDuringPreparationAndRestorationRequiresConfigure) {
-  RadioHardware hw;
-  PacketListener listener;
-  hw.configure(true, true);
-  hw.radio.register_listener(&listener);
-  const auto configured_params = hw.packet_params;
-  hw.clear_trace();
-  auto normal_busy = hw.busy.on_read;
-  hw.busy.on_read = [&]() { return hw.transactions.size() >= 3 || normal_busy(); };
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-  EXPECT_FALSE(hw.receiving);
-  EXPECT_TRUE(hw.radio.status_has_warning());
-  EXPECT_EQ(hw.sends, 0u);
-  hw.busy.on_read = normal_busy;
-  hw.clear_trace();
-  hw.radio.set_mode_rx();
-  hw.radio.run_image_cal();
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_TRUE(hw.radio.status_has_warning());
-  hw.radio.configure();
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.packet_params, configured_params);
-  hw.irq = IRQ_RX_DONE;
-  hw.radio.loop();
-  ASSERT_EQ(listener.packets.size(), 1u);
-  EXPECT_EQ(listener.packets[0], hw.packet);
-  EXPECT_EQ(hw.sends, 0u);
-}
-
-INSTANTIATE_TEST_SUITE_P(LoRaAndFSKWithRxOrSleepAndFixedOrVariablePayload, SX126xBusyTransmit,
-                         ::testing::Combine(::testing::Bool(), ::testing::Bool(), ::testing::Bool()));
-
-class SX126xBusyReceive : public ::testing::TestWithParam<bool> {};
-
-TEST_P(SX126xBusyReceive, KeepsAPacketWhoseReadFailedAndRetries) {
-  const bool lora = GetParam();
-  for (size_t fault = 1; fault <= 5; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hardware;
-    PacketListener listener;
-    hardware.configure(lora, true);
-    hardware.radio.register_listener(&listener);
-    hardware.clear_trace();
-    hardware.irq = IRQ_RX_DONE;
-    hardware.fail_at = fault;
-    hardware.radio.loop();
-    hardware.expect_aborted(fault);
-    EXPECT_TRUE(listener.packets.empty());
-    EXPECT_TRUE(hardware.radio.status_has_warning());
-    EXPECT_FALSE(hardware.radio.is_failed());
-    // The flags may already be cleared; the packet is still read on the retry.
-    hardware.clear_trace();
-    LoopBlockingGuard retry{nullptr, nullptr, App.get_loop_component_start_time() + 200};
-    hardware.radio.loop();
-    ASSERT_EQ(listener.packets.size(), 1u);
-    EXPECT_EQ(listener.packets[0], hardware.packet);
-    EXPECT_FLOAT_EQ(listener.rssi, lora ? -40 : -42);
-    if (lora) {
-      EXPECT_FLOAT_EQ(listener.snr, 10);
-    } else {
-      EXPECT_TRUE(std::isnan(listener.snr));
-    }
-    EXPECT_FALSE(hardware.radio.status_has_warning());
-  }
-}
-
-INSTANTIATE_TEST_SUITE_P(LoRaAndFSK, SX126xBusyReceive, ::testing::Bool());
-
-// A packet whose flags were cleared before its read failed, then held by a send, survives a
-// second failed read
-TEST(SX126xBusy, HeldPacketSurvivesASecondFailedRead) {
-  RadioHardware hw;
-  PacketListener listener;
-  hw.configure(true, true);
-  hw.radio.register_listener(&listener);
-  hw.clear_trace();
-  hw.irq = IRQ_RX_DONE;
-  hw.fail_at = 3;  // the first read after the flags were cleared
-  hw.radio.loop();
-  ASSERT_EQ(hw.irq, 0);
-  ASSERT_TRUE(listener.packets.empty());
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  hw.clear_trace();
-  hw.fail_at = 2;  // the held packet's read
-  LoopBlockingGuard first{nullptr, nullptr, App.get_loop_component_start_time() + 200};
-  hw.radio.loop();
-  ASSERT_TRUE(listener.packets.empty());
-  hw.clear_trace();
-  LoopBlockingGuard second{nullptr, nullptr, App.get_loop_component_start_time() + 200};
-  hw.radio.loop();
-  ASSERT_EQ(listener.packets.size(), 1u);
-  EXPECT_EQ(listener.packets[0], hw.packet);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-TEST(SX126xBusy, KeepsPollingAnUnclearedInterruptAfterBusyTimeout) {
-  RadioHardware hardware;
-  PacketListener listener;
-  hardware.configure(true, true);
-  hardware.radio.register_listener(&listener);
-  hardware.dio.internal = true;  // No new ISR edge while the pending IRQ stays high.
-  hardware.clear_trace();
-  hardware.fail_at = 1;
-  hardware.irq = IRQ_RX_DONE;
-  hardware.radio.call();
-  EXPECT_TRUE(listener.packets.empty());
-  hardware.clear_trace();
-  LoopBlockingGuard retry{nullptr, nullptr, App.get_loop_component_start_time() + 200};
-  hardware.radio.call();
-  EXPECT_EQ(listener.packets.size(), 1u);
-}
-
-TEST(SX126xBusy, AssertsChipSelectBeforeWaitingForWakeup) {
-  RadioHardware hardware;
-  hardware.configure(true, true);
-  hardware.clear_trace();
-  hardware.busy.level = true;  // The CS callback releases BUSY only after selecting the chip.
-  EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_TRUE(hardware.cs.level);
-  EXPECT_EQ(hardware.ends, hardware.transactions.size());
-}
-
-TEST(SX126xBusy, RejectsSendBeforeSetupWithoutTouchingPins) {
-  RadioHardware hardware;
-  EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hardware.transactions.empty());
-  EXPECT_EQ(hardware.busy.reads, 0u);
-  EXPECT_EQ(hardware.dio.reads, 0u);
-}
-
-TEST(SX126xBusy, UnsupportedVersionFailsSetup) {
-  RadioHardware hardware;
-  hardware.supported_version = false;
-  hardware.configure(true, true);
-  EXPECT_TRUE(hardware.radio.is_failed());
-}
-
-TEST(SX126xBusy, RuntimeVersionFailureRequiresConfigureWithoutPermanentlyFailing) {
-  RadioHardware hardware;
-  hardware.configure(true, true);
-  hardware.supported_version = false;
-  hardware.radio.configure();
-  EXPECT_FALSE(hardware.radio.is_failed());
-  EXPECT_TRUE(hardware.radio.status_has_warning());
-  hardware.clear_trace();
-  EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  EXPECT_TRUE(hardware.transactions.empty());
-  hardware.supported_version = true;
-  hardware.radio.configure();
-  EXPECT_FALSE(hardware.radio.status_has_warning());
-  EXPECT_EQ(hardware.radio.transmit_packet(hardware.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-TEST(SX126xBusy, FailedReconfigurationRequiresSuccessfulConfigureBeforeOperations) {
-  RadioHardware reference;
-  reference.configure(true, true);
-  const size_t count = reference.transactions.size();
-  for (size_t fault = 1; fault <= count; fault++) {
-    SCOPED_TRACE(fault);
-    RadioHardware hw;
-    PacketListener listener;
-    hw.configure(true, true);
-    hw.radio.register_listener(&listener);
-    hw.clear_trace();
-    hw.fail_at = fault;
-    hw.radio.configure();
-    EXPECT_FALSE(hw.radio.is_failed());
-    hw.clear_trace();
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    hw.irq = IRQ_RX_DONE;
-    hw.radio.loop();
-    hw.radio.set_mode_rx();
-    hw.radio.set_mode_tx();
-    hw.radio.set_mode_standby(STDBY_XOSC);
-    hw.radio.set_mode_sleep();
-    hw.radio.run_image_cal();
-    EXPECT_TRUE(hw.transactions.empty());
-    EXPECT_TRUE(listener.packets.empty());
-    hw.radio.configure();
-    hw.irq = 0;
-    EXPECT_FALSE(hw.radio.status_has_warning());
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  }
-}
-
-TEST(SX126xBusy, RetryClearsStaleTxDoneBeforeWaitingForDelayedCompletion) {
-  RadioHardware reference;
-  reference.configure(true, true);
-  reference.clear_trace();
-  reference.radio.transmit_packet(reference.packet);
-  size_t cleanup = 0;
-  bool sent = false;
-  for (size_t i = 0; i < reference.transactions.size(); i++) {
-    if (reference.transactions[i][0] == RADIO_SET_TX) {
-      sent = true;
-    }
-    if (sent && reference.transactions[i][0] == RADIO_CLR_IRQSTATUS) {
-      cleanup = i + 1;
-      break;
-    }
-  }
-  ASSERT_NE(cleanup, 0u);
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.clear_trace();
-  hw.fail_at = cleanup;
-  ASSERT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-  EXPECT_EQ(hw.irq & IRQ_TX_DONE, 0);  // Shared restoration retries the failed IRQ clear.
-  hw.irq = IRQ_TX_DONE;                // A stale flag must still not finish the next TX.
-  hw.clear_trace();
-  hw.auto_complete = false;
-  unsigned polls = 0;
-  hw.dio.on_read = [&]() {
-    if (++polls == 5) {
-      hw.irq |= IRQ_TX_DONE;
-    }
-    return hw.irq != 0;
-  };
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_EQ(polls, 5u);
-  EXPECT_TRUE(hw.receiving);
-}
-
-}  // namespace esphome::sx126x::testing
-
-namespace esphome::sx126x::testing {
-template<typename T>
-concept RawSpiAccessible = requires(T &device) { device.transfer_byte(0); };
-template<typename T>
-concept ManualSelectionAccessible = requires(T &device) {
-  device.enable();
-  device.disable();
-};
-static_assert(!RawSpiAccessible<SX126x>);
-static_assert(!RawSpiAccessible<SX126xSpiDevice>);
-static_assert(!ManualSelectionAccessible<SX126x>);
-static_assert(!ManualSelectionAccessible<SX126xSpiDevice>);
-// The radio runs every command sequence and state change. Without component status or
-// listeners it cannot run user code mid-operation; SX126x::apply_() does that afterwards.
-static_assert(!std::is_base_of_v<Component, SX126xRadio>);
-}  // namespace esphome::sx126x::testing
-
-namespace esphome::sx126x::testing {
-TEST(SX126xBusy, FailedModeChangeCannotBeClearedByAnotherModeCommand) {
-  for (size_t fault = 1; fault <= 3; fault++) {
-    RadioHardware hw;
-    hw.configure(true, true);
-    hw.clear_trace();
-    hw.fail_at = fault;
-    hw.radio.set_mode_rx();
-    EXPECT_TRUE(hw.radio.status_has_warning());
-    hw.clear_trace();
-    hw.radio.set_mode_standby(STDBY_XOSC);
-    hw.radio.run_image_cal();
-    EXPECT_TRUE(hw.transactions.empty());
-    EXPECT_TRUE(hw.radio.status_has_warning());
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    hw.radio.configure();
-    EXPECT_FALSE(hw.radio.status_has_warning());
-    EXPECT_TRUE(hw.receiving);
-  }
-}
-
-TEST(SX126xBusy, ConfigurationCannotReenterSendPreparationOrRestoration) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.radio.call();  // Advance from setup into ESPHome loop scheduling.
-  hw.clear_trace();
-  auto write = hw.cs.on_write;
-  unsigned guarded = 0;
-  hw.cs.on_write = [&](bool high) {
-    write(high);
-    if (!high || hw.transactions.back().empty() || hw.transactions.back()[0] != RADIO_SET_STANDBY) {
-      return;
-    }
-    guarded++;
-    const auto commands = hw.transactions.size();
-    hw.radio.configure();
-    hw.radio.set_mode_rx();
-    hw.radio.loop();
-    EXPECT_TRUE(hw.radio.is_in_loop_state());
-    EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY);
-    EXPECT_EQ(hw.transactions.size(), commands);
-  };
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_EQ(guarded, 2u);
-  EXPECT_TRUE(hw.radio.is_in_loop_state());
-  EXPECT_TRUE(hw.receiving);
-}
-}  // namespace esphome::sx126x::testing
-
-namespace esphome::sx126x::testing {
-TEST(SX126xBusy, InvalidPayloadDoesNotEnterAnOperation) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.clear_trace();
-  EXPECT_EQ(hw.radio.transmit_packet(nullptr, 3), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet.data(), 0), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-TEST(SX126xBusy, ColdSleepIsWokenByAModeCommandAndWarmSleepRetainsIt) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.radio.set_mode_sleep(false);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.set_mode_sleep(true);
-  hw.clear_trace();
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  // Sleeping again leaves it asleep
-  hw.radio.set_mode_sleep(false);
-  EXPECT_TRUE(hw.transactions.empty());
-  // Any other mode command applies the lost configuration first
-  hw.radio.set_mode_rx();
-  EXPECT_FALSE(hw.transactions.empty());
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-// Runs the scheduler for ms milliseconds of real time, as the main loop would
-static void run_scheduler(uint32_t ms) {
-  const uint32_t start = millis();
-  while (millis() - start < ms) {
-    App.scheduler.call(millis());
-    delay(5);
-  }
-}
-
-TEST(SX126xBusy, FailedModeChangeIsReconfiguredWithoutBeingAsked) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.clear_trace();
-  hw.fail_at = 1;
-  hw.radio.set_mode_rx();
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  run_scheduler(1100);
-  EXPECT_FALSE(hw.radio.status_has_warning());
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  // Once configured, the retry stops
-  hw.clear_trace();
-  run_scheduler(1100);
-  EXPECT_TRUE(hw.transactions.empty());
-}
-
-TEST(SX126xBusy, ColdSleepIsNotReconfiguredWithoutBeingAsked) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.radio.set_mode_sleep(true);
-  hw.clear_trace();
-  run_scheduler(1100);
-  EXPECT_TRUE(hw.transactions.empty());
-}
-
-TEST(SX126xBusy, ConfigureBeforeSetupDoesNothing) {
-  RadioHardware hw;
-  hw.radio.configure();
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_EQ(hw.rst.writes, 0u);
-  hw.configure(true, true);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-// The TX mode command sends whatever the FIFO holds without tracking it; its TX_DONE is
-// cleared as a flag without a packet, and a send still works afterwards
-TEST(SX126xBusy, RawTxModeLeavesTheRadioUsable) {
-  RadioHardware hw;
-  PacketListener listener;
-  hw.configure(true, true);
-  hw.radio.register_listener(&listener);
-  hw.radio.set_mode_tx();
-  ASSERT_EQ(hw.irq & IRQ_TX_DONE, IRQ_TX_DONE);
-  hw.radio.loop();
-  EXPECT_EQ(hw.irq, 0);
-  EXPECT_TRUE(listener.packets.empty());
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-TEST(SX126xBusy, PacketThatFailedItsCrcDoesNotHoldUpASend) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.irq = IRQ_RX_DONE | IRQ_CRC_ERROR;
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-
-TEST(SX126xBusy, PacketCompletingDuringAReadIsReadNext) {
-  RadioHardware hw;
-  PacketListener listener;
-  hw.configure(true, true);
-  hw.radio.register_listener(&listener);
-  bool second = false;
-  hw.on_command = [&](uint8_t opcode) {
-    if (opcode == RADIO_READ_BUFFER && !second) {
-      second = true;
-      hw.irq |= IRQ_RX_DONE;
-    }
-  };
-  hw.irq = IRQ_RX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(listener.packets.size(), 1u);
-  EXPECT_EQ(hw.irq & IRQ_RX_DONE, IRQ_RX_DONE);  // DIO1 stays high for the second packet
-  hw.radio.loop();
-  EXPECT_EQ(listener.packets.size(), 2u);
-}
-
-TEST(SX126xBusy, UnavailableLoopStopsAndConfigurationResumesReceiveWithoutAnInterrupt) {
-  for (bool internal : {false, true}) {
-    for (unsigned cause = 0; cause < 3; cause++) {
-      SCOPED_TRACE(internal);
-      SCOPED_TRACE(cause);
-      RadioHardware hw;
-      PacketListener received;
-      hw.configure(true, true);
-      hw.radio.register_listener(&received);
-      // Set after setup: the fake pin cannot attach a hardware interrupt.
-      hw.dio.internal = internal;
-      hw.clear_trace();
-      if (cause == 0) {
-        hw.radio.set_mode_sleep(true);
-      } else if (cause == 1) {
-        hw.fail_at = 1;
-        hw.radio.configure();
-      } else {
-        hw.fail_at = 1;
-        hw.radio.set_mode_rx();
-      }
-      hw.clear_trace();
-      hw.radio.call();
-      ASSERT_TRUE(hw.radio.is_idle());
-      EXPECT_TRUE(hw.transactions.empty());
-      EXPECT_EQ(hw.dio.reads, 0u);
-      hw.radio.configure();
-      ASSERT_TRUE(hw.radio.is_in_loop_state());
-      hw.irq = IRQ_RX_DONE;  // No ISR edge: configure() must resume polling itself.
-      hw.radio.call();
-      ASSERT_EQ(received.packets.size(), 1u);
-      EXPECT_EQ(received.packets[0], hw.packet);
-    }
-  }
-}
-}  // namespace esphome::sx126x::testing
-
-namespace esphome::sx126x::testing {
-TEST(SX126xProfile, SettersDoNotChangeAppliedPacketOrRestorationPolicy) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.radio.set_payload_length(2);
-  hw.radio.set_rx_start(false);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_TRUE(hw.receiving);
-  hw.radio.configure();
-  EXPECT_EQ(hw.radio.get_max_packet_size(), 2u);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_INVALID_PARAMS);
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet.data(), 2), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_FALSE(hw.receiving);
-}
-
-TEST(SX126xProfile, RejectsOversizedSyncValueBeforeResetOrSpi) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.radio.set_sync_value(std::vector<uint8_t>(9, 1));
-  hw.clear_trace();
-  const auto reset_writes = hw.rst.writes;
-  hw.radio.configure();
-  EXPECT_EQ(hw.rst.writes, reset_writes);
-  EXPECT_TRUE(hw.transactions.empty());
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-  hw.radio.set_sync_value({0x14, 0x24});
-  hw.radio.configure();
-  EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NONE);
-}
-}  // namespace esphome::sx126x::testing
-
-#ifdef USE_HOST
-namespace esphome::sx126x::testing {
-template<typename F> static std::string capture_radio_logs(F action) {
-  const auto previous_baud_rate = logger::global_logger->get_baud_rate();
-  ::testing::internal::CaptureStdout();
-  logger::global_logger->set_baud_rate(115200);
-  action();
-  logger::global_logger->set_baud_rate(previous_baud_rate);
-  return ::testing::internal::GetCapturedStdout();
-}
-
-TEST(SX126xDiagnostics, BlockingRejectionsExplainWhyNoPacketWasSent) {
-  RadioHardware hw;
-  auto output = capture_radio_logs(
-      [&]() { EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_NOT_READY); });
-  EXPECT_NE(output.find("Packet send failed: radio not ready"), std::string::npos);
-  hw.configure(true, true, true);
-  hw.clear_trace();
-  output = capture_radio_logs(
-      [&]() { EXPECT_EQ(hw.radio.transmit_packet(hw.packet.data(), 2), SX126xError::SX126X_ERROR_INVALID_PARAMS); });
-  EXPECT_NE(output.find("Packet send failed: invalid payload"), std::string::npos);
-  EXPECT_TRUE(hw.transactions.empty());
-  hw.irq = IRQ_RX_DONE;
-  output =
-      capture_radio_logs([&]() { EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY); });
-  EXPECT_NE(output.find("Packet send failed: radio busy"), std::string::npos);
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  EXPECT_EQ(hw.sends, 0u);
-  hw.radio.loop();  // Deliver the held packet, which also clears its IRQ.
-  EXPECT_EQ(hw.irq, 0u);
-  hw.clear_trace();
-  hw.fail_at = 1;
-  output = capture_radio_logs(
-      [&]() { EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT); });
-  EXPECT_NE(output.find("Packet send failed: bus timeout"), std::string::npos);
-  EXPECT_EQ(hw.sends, 0u);
-}
-
-TEST(SX126xDiagnostics, AsyncAdmissionLeavesRejectionReportingToItsCaller) {
-  class Completion final : public SX126xTransmitListener {
-   public:
-    void on_transmit_complete(SX126xError result) override { ADD_FAILURE() << "Rejected send completed"; }
-  } completion;
-  RadioHardware hw;
-  const auto output = capture_radio_logs([&]() {
-    EXPECT_EQ(hw.radio.start_transmit_async(&completion, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    hw.configure(true, true, true);
-    EXPECT_EQ(hw.radio.start_transmit_async(&completion, hw.packet.data(), 2),
-              SX126xError::SX126X_ERROR_INVALID_PARAMS);
-    hw.irq = IRQ_RX_DONE;
-    EXPECT_EQ(hw.radio.start_transmit_async(&completion, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-  });
-  EXPECT_EQ(output.find("Packet send failed"), std::string::npos);
-  EXPECT_EQ(hw.sends, 0u);
-}
-
-TEST(SX126xDiagnostics, FailedSetupPrintsRequestedConfiguration) {
-  RadioHardware hw;
-  hw.fail_at = 1;
-  hw.radio.set_pa_power(10);
-  hw.configure(true, true, true);
-  ASSERT_TRUE(hw.radio.is_failed());
-  const auto output = capture_radio_logs([&]() { hw.radio.dump_config(); });
-  EXPECT_NE(output.find("Ready for operation: NO"), std::string::npos);
-  EXPECT_NE(output.find("Requested configuration:"), std::string::npos);
-  EXPECT_NE(output.find("Frequency: 915000000 Hz"), std::string::npos);
-  EXPECT_NE(output.find("PA Power: 10 dBm"), std::string::npos);
-  EXPECT_NE(output.find("Payload Length: 3"), std::string::npos);
-  EXPECT_NE(output.find("Sync Value: 0x1424"), std::string::npos);
-}
-
-TEST(SX126xDiagnostics, StagedConfigurationIsLabelledAndDoesNotAlterAppliedSettings) {
-  RadioHardware hw;
-  hw.configure(true, true, true);
-  hw.radio.set_frequency(868000000);
-  hw.radio.set_payload_length(2);
-  auto output = capture_radio_logs([&]() { hw.radio.dump_config(); });
-  EXPECT_NE(output.find("Ready for operation: YES"), std::string::npos);
-  EXPECT_NE(output.find("Requested configuration:"), std::string::npos);
-  EXPECT_NE(output.find("Frequency: 868000000 Hz"), std::string::npos);
-  EXPECT_NE(output.find("Payload Length: 2"), std::string::npos);
-  EXPECT_EQ(hw.radio.get_max_packet_size(), 3u);
-  hw.clear_trace();
-  hw.fail_at = 1;
-  hw.radio.configure();
-  output = capture_radio_logs([&]() { hw.radio.dump_config(); });
-  EXPECT_NE(output.find("Ready for operation: NO"), std::string::npos);
-  EXPECT_NE(output.find("Frequency: 868000000 Hz"), std::string::npos);
-  EXPECT_EQ(hw.radio.get_max_packet_size(), 3u);
-}
-class SX126xTimeoutDiagnostics : public ::testing::TestWithParam<bool> {};
-
-TEST_P(SX126xTimeoutDiagnostics, BlockingTimeoutLogsFailureAfterRestoration) {
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  if (GetParam()) {
-    hw.dio.on_read = [&]() {
-      if (hw.sends > 0) {
-        hw.irq = IRQ_RX_TX_TIMEOUT;
-      }
-      return hw.irq != 0;
-    };
-  }
-  const auto output =
-      capture_radio_logs([&]() { EXPECT_EQ(hw.radio.transmit_packet(hw.packet), SX126xError::SX126X_ERROR_TIMEOUT); });
-  EXPECT_NE(output.find("Packet send failed: timeout"), std::string::npos);
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_FALSE(hw.radio.is_transmitting());
-  EXPECT_FALSE(hw.radio.status_has_warning());  // Restoration itself succeeded.
-}
-
-INSTANTIATE_TEST_SUITE_P(SoftwareDeadlineAndRadioTimeout, SX126xTimeoutDiagnostics, ::testing::Bool());
-
-TEST(SX126xDiagnostics, AsyncTimeoutLeavesCompletionReportingToItsCaller) {
-  struct Completion final : SX126xTransmitListener {
-    void on_transmit_complete(SX126xError result) override {
-      this->count++;
-      EXPECT_EQ(result, SX126xError::SX126X_ERROR_TIMEOUT);
-    }
-    unsigned count{0};
-  } completion;
-  RadioHardware hw;
-  hw.configure(true, true);
-  const auto output = capture_radio_logs([&]() {
-    ASSERT_EQ(hw.radio.start_transmit_async(&completion, hw.packet), SX126xError::SX126X_ERROR_NONE);
-    hw.irq = IRQ_RX_TX_TIMEOUT;
-    hw.radio.loop();
-  });
-  EXPECT_EQ(completion.count, 1u);
-  EXPECT_EQ(output.find("Packet send failed"), std::string::npos);
-}
-
-}  // namespace esphome::sx126x::testing
-#endif

tests/components/sx126x/sx126x_reentry_test.cpp

@@ -1,182 +0,0 @@
-#include "sx126x_test_helpers.h"
-#include "esphome/components/logger/logger.h"
-#include "esphome/core/application.h"
-#include <string>
-#include <tuple>
-
-namespace esphome::sx126x::testing {
-
-class RadioLogCallback {
- public:
-  RadioLogCallback() : previous_(logger::global_logger) {
-    this->logger_.pre_setup();
-    this->logger_.set_log_level(ESPHOME_LOG_LEVEL_WARN);
-    this->logger_.add_log_callback(this,
-                                   [](void *instance, uint8_t level, const char *tag, const char *message, size_t len) {
-                                     auto *self = static_cast<RadioLogCallback *>(instance);
-                                     if (self->callback_) {
-                                       self->callback_(std::string(message, len));
-                                     }
-                                   });
-  }
-  ~RadioLogCallback() { logger::global_logger = this->previous_; }
-  void set_callback(std::function<void(const std::string &)> callback) { this->callback_ = std::move(callback); }
-
- private:
-  std::function<void(const std::string &)> callback_;
-  logger::Logger *previous_;
-  logger::Logger logger_{0};
-};
-
-struct ReentryCompletion final : SX126xTransmitListener {
-  void on_transmit_complete(SX126xError result) override { this->results.push_back(result); }
-  std::vector<SX126xError> results;
-};
-
-// Setup reports why it failed, not a generic reason
-TEST(SX126xReentry, FailedSetupKeepsItsReason) {
-  RadioLogCallback log;
-  std::vector<std::string> messages;
-  log.set_callback([&](const std::string &message) { messages.push_back(message); });
-  RadioHardware hw;
-  hw.supported_version = false;
-  hw.configure(true, true);
-  ASSERT_TRUE(hw.radio.is_failed());
-  bool found = false;
-  for (const auto &message : messages)
-    found |= message.find("set Error flag: Unsupported chip version") != std::string::npos;
-  EXPECT_TRUE(found);
-}
-
-// Status logging is the only user code that can run inside a radio operation. It runs only
-// after the operation has committed its state, so a callback sees either a running send or a
-// released radio, and the interrupted operation touches nothing after the callback returns.
-
-TEST(SX126xReentry, SuccessfulStartRunsNoUserCode) {
-  RadioHardware hw;
-  RadioLogCallback log;
-  ReentryCompletion outer, nested;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  hw.radio.status_set_warning(LOG_STR("Previous communication failure"));
-  hw.irq = IRQ_TX_DONE;  // A stale IRQ must not complete the new send either.
-  unsigned callbacks = 0;
-  log.set_callback([&](const std::string &message) {
-    if (message.find("cleared Warning flag") != std::string::npos) {
-      callbacks++;
-      EXPECT_FALSE(hw.radio.is_transmitting());  // Only the completion clears the warning.
-      EXPECT_EQ(hw.radio.start_transmit_async(&nested, hw.packet), SX126xError::SX126X_ERROR_NONE);
-    }
-  });
-  ASSERT_EQ(hw.radio.start_transmit_async(&outer, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_EQ(callbacks, 0u);
-  EXPECT_TRUE(outer.results.empty());
-  LoopBlockingGuard clock{nullptr, nullptr, millis()};
-  hw.radio.loop();
-  EXPECT_TRUE(outer.results.empty());  // The stale IRQ was cleared before the send.
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  ASSERT_EQ(callbacks, 1u);
-  EXPECT_EQ(outer.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-  EXPECT_TRUE(nested.results.empty());
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_EQ(hw.sends, 2u);
-  ASSERT_TRUE(hw.radio.cancel_transmit_async(&nested));
-  EXPECT_EQ(nested.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_CANCELLED}));
-  EXPECT_EQ(outer.results.size(), 1u);
-}
-
-class SX126xStartReentry : public ::testing::TestWithParam<bool> {};
-
-TEST_P(SX126xStartReentry, WarningCallbackAfterFailedStartSeesReleasedRadio) {
-  const bool cold_sleep = GetParam();
-  RadioHardware hw;
-  RadioLogCallback log;
-  ReentryCompletion outer, nested;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  hw.radio.status_set_warning(LOG_STR("Previous communication failure"));
-  hw.clear_trace();
-  hw.fail_at = 3;  // Preparation fails; restoration succeeds and clears the warning.
-  unsigned callbacks = 0;
-  size_t commands_after_callback = 0;
-  log.set_callback([&](const std::string &message) {
-    if (message.find("cleared Warning flag") != std::string::npos) {
-      callbacks++;
-      EXPECT_FALSE(hw.radio.is_transmitting());
-      EXPECT_EQ(hw.receiving, true);  // Restoration finished before the callback.
-      if (cold_sleep) {
-        hw.radio.set_mode_sleep(true);
-      } else {
-        EXPECT_EQ(hw.radio.start_transmit_async(&nested, hw.packet), SX126xError::SX126X_ERROR_NONE);
-      }
-      commands_after_callback = hw.transactions.size();
-    }
-  });
-  EXPECT_EQ(hw.radio.start_transmit_async(&outer, hw.packet), SX126xError::SX126X_ERROR_BUSY_TIMEOUT);
-  ASSERT_EQ(callbacks, 1u);
-  EXPECT_EQ(hw.transactions.size(), commands_after_callback);  // The failed start touched nothing after it.
-  EXPECT_TRUE(outer.results.empty());                          // A rejected start never completes.
-  if (cold_sleep) {
-    EXPECT_FALSE(hw.radio.is_transmitting());
-    EXPECT_EQ(hw.radio.start_transmit_async(&outer, hw.packet), SX126xError::SX126X_ERROR_NOT_READY);
-    EXPECT_EQ(hw.sends, 0u);
-    return;
-  }
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_EQ(hw.sends, 1u);
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  EXPECT_EQ(nested.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-  EXPECT_TRUE(outer.results.empty());
-}
-
-INSTANTIATE_TEST_SUITE_P(NestedSendOrColdSleep, SX126xStartReentry, ::testing::Bool());
-
-class SX126xPollingReentry : public ::testing::TestWithParam<std::tuple<unsigned, bool>> {};
-
-TEST_P(SX126xPollingReentry, WarningCallbackCannotCancelOrDisturbAFinishedSend) {
-  const auto [failed_command, reuse_listener] = GetParam();
-  RadioHardware hw;
-  RadioLogCallback log;
-  ReentryCompletion first, second;
-  auto *replacement = reuse_listener ? &first : &second;
-  hw.configure(true, true);
-  hw.auto_complete = false;
-  ASSERT_EQ(hw.radio.start_transmit_async(&first, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.clear_trace();
-  hw.fail_at = failed_command;  // 0: success, 1: IRQ read fails, 2: IRQ clear fails.
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.status_set_warning(LOG_STR("Previous communication failure"));
-  unsigned callbacks = 0;
-  size_t commands_after_replacement = 0;
-  log.set_callback([&](const std::string &message) {
-    if (callbacks == 0 && message.find("cleared Warning flag") != std::string::npos) {
-      callbacks++;
-      EXPECT_TRUE(first.results.empty());                    // Status is reported before the completion.
-      EXPECT_FALSE(hw.radio.cancel_transmit_async(&first));  // Already finished: no second completion.
-      EXPECT_EQ(hw.radio.start_transmit_async(replacement, hw.packet), SX126xError::SX126X_ERROR_NONE);
-      commands_after_replacement = hw.transactions.size();
-    }
-  });
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, millis()};
-    hw.radio.loop();
-  }
-  ASSERT_EQ(callbacks, 1u);
-  const auto expected = failed_command == 0 ? SX126xError::SX126X_ERROR_NONE : SX126xError::SX126X_ERROR_BUSY_TIMEOUT;
-  EXPECT_EQ(first.results, (std::vector<SX126xError>{expected}));
-  EXPECT_TRUE(second.results.empty());
-  EXPECT_TRUE(hw.radio.is_transmitting());
-  EXPECT_EQ(hw.transactions.size(), commands_after_replacement);  // No stale IRQ clear or restoration.
-  hw.irq = IRQ_TX_DONE;
-  hw.radio.loop();
-  ASSERT_EQ(replacement->results.size(), reuse_listener ? 2u : 1u);
-  EXPECT_EQ(replacement->results.back(), SX126xError::SX126X_ERROR_NONE);
-  EXPECT_FALSE(hw.radio.is_transmitting());
-}
-
-INSTANTIATE_TEST_SUITE_P(ReadSuccessReadFailureAndClearFailure, SX126xPollingReentry,
-                         ::testing::Combine(::testing::Values(0u, 1u, 2u), ::testing::Bool()));
-
-}  // namespace esphome::sx126x::testing

tests/components/sx126x/sx126x_retry_test.cpp

@@ -1,127 +0,0 @@
-#include "sx126x_test_helpers.h"
-#include "esphome/core/application.h"
-#include <tuple>
-
-namespace esphome::sx126x::testing {
-
-struct RejectedCompletion final : SX126xTransmitListener {
-  void on_transmit_complete(SX126xError result) override { ADD_FAILURE() << "Rejected transmission completed"; }
-};
-
-class SX126xReceiveRetry : public ::testing::TestWithParam<std::tuple<bool, unsigned, bool>> {};
-
-TEST_P(SX126xReceiveRetry, PersistentBusyIsRateLimitedAndRecoversWithoutNewEdge) {
-  const auto [held_receive, failed_command, rollover] = GetParam();
-  RadioHardware hw;
-  PacketListener listener;
-  RejectedCompletion tx;
-  hw.configure(true, true);
-  hw.radio.register_listener(&listener);
-  hw.radio.call();
-  hw.dio.internal = true;
-  if (held_receive) {
-    auto write = hw.cs.on_write;
-    hw.cs.on_write = [&](bool high) {
-      write(high);
-      if (high && !hw.transactions.back().empty() && hw.transactions.back()[0] == RADIO_SET_STANDBY) {
-        hw.irq = IRQ_RX_DONE;
-      }
-    };
-    EXPECT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_BUSY);
-    hw.cs.on_write = write;
-  }
-  hw.clear_trace();
-  hw.irq = IRQ_RX_DONE;
-  hw.fail_at = failed_command;
-  const uint32_t start = rollover ? 0xFFFFFFF0u : 1000;
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, start};
-    hw.radio.call();
-  }
-  hw.expect_aborted(failed_command);
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  const auto normal_busy = hw.busy.on_read;
-  hw.busy.on_read = []() { return true; };
-  for (uint32_t elapsed = 1; elapsed < 200; elapsed++) {
-    LoopBlockingGuard clock{nullptr, nullptr, start + elapsed};
-    hw.radio.call();
-  }
-  EXPECT_EQ(hw.transactions.size(), failed_command);  // No SPI/BUSY waits inside the retry interval.
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, start + 200};
-    hw.radio.call();
-  }
-  ASSERT_EQ(hw.transactions.size(), failed_command + 1);
-  EXPECT_TRUE(hw.transactions.back().empty());
-  EXPECT_TRUE(hw.radio.is_in_loop_state());
-  EXPECT_TRUE(hw.cs.level);
-  EXPECT_EQ(hw.irq, IRQ_RX_DONE);
-  EXPECT_TRUE(listener.packets.empty());
-  hw.busy.on_read = normal_busy;
-  hw.fail_at = 0;
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, start + 399};
-    hw.radio.call();
-    EXPECT_EQ(hw.transactions.size(), failed_command + 1);
-  }
-  {
-    LoopBlockingGuard clock{nullptr, nullptr, start + 400};
-    hw.radio.call();
-  }
-  ASSERT_EQ(listener.packets.size(), 1u);
-  EXPECT_EQ(listener.packets.front(), hw.packet);
-  EXPECT_FALSE(hw.radio.status_has_warning());
-  EXPECT_TRUE(hw.receiving);
-  EXPECT_EQ(hw.sends, 0u);
-  hw.radio.call();
-  EXPECT_EQ(listener.packets.size(), 1u);
-}
-
-INSTANTIATE_TEST_SUITE_P(IdleAndHeldRxWithIrqAndPacketFailuresAcrossRollover, SX126xReceiveRetry,
-                         ::testing::Combine(::testing::Bool(), ::testing::Values(1u, 2u), ::testing::Bool()));
-
-TEST(SX126xReceiveRetry, SuccessfulConfigurationClearsBackoffAndOtherRadiosRemainIndependent) {
-  RadioHardware failed, other;
-  PacketListener recovered, unaffected;
-  failed.configure(true, true);
-  other.configure(true, true);
-  failed.radio.register_listener(&recovered);
-  other.radio.register_listener(&unaffected);
-  failed.clear_trace();
-  failed.fail_at = 1;
-  failed.irq = IRQ_RX_DONE;
-  LoopBlockingGuard clock{nullptr, nullptr, 1000};
-  failed.radio.loop();
-  other.irq = IRQ_RX_DONE;
-  other.radio.loop();
-  ASSERT_EQ(unaffected.packets.size(), 1u);
-  EXPECT_TRUE(recovered.packets.empty());
-  failed.clear_trace();
-  failed.radio.configure();
-  failed.irq = IRQ_RX_DONE;
-  failed.radio.loop();
-  ASSERT_EQ(recovered.packets.size(), 1u);  // Explicit recovery does not wait for the old retry deadline.
-}
-
-TEST(SX126xReceiveRetry, ReceiveBackoffDoesNotDelayTransmitCompletion) {
-  struct Completion final : SX126xTransmitListener {
-    void on_transmit_complete(SX126xError result) override { this->results.push_back(result); }
-    std::vector<SX126xError> results;
-  } tx;
-  RadioHardware hw;
-  hw.configure(true, true);
-  hw.clear_trace();
-  hw.fail_at = 1;
-  hw.irq = IRQ_TX_DONE;  // Failed read of an unrelated stale IRQ starts the RX retry gate.
-  LoopBlockingGuard clock{nullptr, nullptr, millis()};
-  hw.radio.loop();
-  EXPECT_TRUE(hw.radio.status_has_warning());
-  hw.clear_trace();
-  hw.irq = 0;
-  ASSERT_EQ(hw.radio.start_transmit_async(&tx, hw.packet), SX126xError::SX126X_ERROR_NONE);
-  hw.radio.loop();  // Same cached tick, before the RX retry gate opens.
-  EXPECT_EQ(tx.results, (std::vector<SX126xError>{SX126xError::SX126X_ERROR_NONE}));
-  EXPECT_TRUE(hw.receiving);
-}
-
-}  // namespace esphome::sx126x::testing

tests/components/sx126x/sx126x_test_helpers.h

@@ -1,237 +0,0 @@
-#pragma once
-#include <gtest/gtest.h>
-#include <functional>
-#include <vector>
-#include "esphome/components/sx126x/sx126x.h"
-namespace esphome::sx126x::testing {
-class TestPin : public GPIOPin {
- public:
-  void setup() override {}
-  void pin_mode(gpio::Flags flags) override {}
-  gpio::Flags get_flags() const override { return gpio::FLAG_NONE; }
-  size_t dump_summary(char *buffer, size_t len) const override { return snprintf(buffer, len, "test"); }
-  bool digital_read() override {
-    this->reads++;
-    return this->on_read ? this->on_read() : this->level;
-  }
-  void digital_write(bool level) override {
-    this->writes++;
-    this->level = level;
-    if (this->on_write) {
-      this->on_write(level);
-    }
-  }
-  bool is_internal() override { return this->internal; }
-
-  bool level{false};
-  bool internal{false};
-  unsigned reads{0};
-  unsigned writes{0};
-  std::function<bool()> on_read;
-  std::function<void(bool)> on_write;
-};
-
-// Exercise the real software SPI adapter and driver through GPIO pins. Each CS
-// assertion starts a command; BUSY can reject any one of those commands.
-class RadioHardware {
- public:
-  RadioHardware() {
-    this->cs.level = true;
-    this->cs.on_write = [this](bool high) {
-      if (!high) {
-        EXPECT_FALSE(this->selected_);
-        this->selected_ = true;
-        this->transactions.emplace_back();
-        this->bit_ = 0;
-        this->byte_ = 0;
-        this->busy.level = this->transactions.size() == this->fail_at;
-      } else if (this->selected_) {
-        this->selected_ = false;
-        this->ends++;
-        const auto &command = this->transactions.back();
-        if (command.empty()) {
-          return;
-        }
-        switch (command[0]) {
-          case RADIO_SET_PACKETPARAMS:
-            this->packet_params = command;
-            break;
-          case RADIO_CLR_IRQSTATUS:
-            this->irq &= ~((uint16_t(command[1]) << 8) | command[2]);
-            break;
-          case RADIO_SET_TX:
-            this->sends++;
-            if (this->auto_complete) {
-              this->irq |= IRQ_TX_DONE;
-            }
-            break;
-          case RADIO_SET_RX:
-            this->receiving = true;
-            break;
-          case RADIO_SET_SLEEP:
-          case RADIO_SET_STANDBY:
-            this->receiving = false;
-            break;
-          default:
-            break;
-        }
-        if (this->on_command) {
-          this->on_command(command[0]);
-        }
-      }
-    };
-    this->busy.on_read = [this]() {
-      EXPECT_TRUE(this->selected_);  // NSS must wake the chip before waiting.
-      return this->busy.level;
-    };
-    this->miso.on_read = [this]() {
-      EXPECT_TRUE(this->selected_);
-      EXPECT_FALSE(this->busy.level);  // No clocks/data may follow a BUSY timeout.
-      auto &command = this->transactions.back();
-      const bool bit = (this->reply_byte_(command) >> (7 - this->bit_)) & 1;
-      this->byte_ = (this->byte_ << 1) | this->mosi.level;
-      if (++this->bit_ == 8) {
-        command.push_back(this->byte_);
-        this->byte_ = 0;
-        this->bit_ = 0;
-      }
-      return bit;
-    };
-    this->dio.on_read = [this]() { return this->irq != 0; };
-    this->rst.on_write = [this](bool high) {
-      if (!high) {
-        this->irq = 0;
-      }
-    };
-    this->spi.set_clk(&this->clk);
-    this->spi.set_mosi(&this->mosi);
-    this->spi.set_miso(&this->miso);
-    // call() runs setup() and marks the bus set up, so it accepts devices
-    this->spi.call();
-    this->radio.set_spi_parent(&this->spi);
-    this->radio.set_cs_pin(&this->cs);
-    this->radio.set_busy_pin(&this->busy);
-    this->radio.set_dio1_pin(&this->dio);
-    this->radio.set_rst_pin(&this->rst);
-    this->radio.set_frequency(915000000);
-    this->radio.set_tcxo_voltage(TCXO_CTRL_1_8V);
-    this->radio.set_rf_switch(true);
-    this->radio.set_crc_enable(true);
-    this->radio.set_sync_value({0x14, 0x24});
-  }
-  ~RadioHardware() {
-    // The configuration retry interval (id 0) must not outlive the radio
-    App.scheduler.cancel_interval(&this->radio, uint32_t{0});
-    this->radio.spi_teardown();
-  }
-
-  void configure(bool lora, bool rx, bool fixed = false) {
-    this->radio.set_modulation(lora ? PACKET_TYPE_LORA : PACKET_TYPE_GFSK);
-    this->radio.set_bandwidth(lora ? SX126X_BW_125000 : SX126X_BW_4800);
-    this->radio.set_bitrate(4800);
-    this->radio.set_rx_start(rx);
-    this->radio.set_payload_length(fixed ? 3 : 0);
-    this->radio.call();  // The normal component lifecycle runs setup().
-  }
-
-  void clear_trace() {
-    this->transactions.clear();
-    this->ends = 0;
-    this->fail_at = 0;
-    this->busy.level = false;
-    this->dio.reads = 0;
-  }
-
-  void expect_aborted(size_t command) {
-    ASSERT_EQ(this->transactions.size(), command);
-    EXPECT_TRUE(this->transactions.back().empty());
-    EXPECT_EQ(this->ends, command);
-    EXPECT_TRUE(this->cs.level);
-  }
-
-  SX126x radio;
-  spi::SPIComponent spi;
-  TestPin cs, busy, dio, rst, clk, mosi, miso;
-  std::vector<std::vector<uint8_t>> transactions;
-  std::vector<uint8_t> packet{0x11, 0x22, 0x33};
-  std::vector<uint8_t> packet_params;
-  size_t fail_at{0};
-  size_t ends{0};
-  unsigned sends{0};
-  uint16_t irq{0};
-  // Called as each command ends, with its opcode
-  std::function<void(uint8_t)> on_command;
-  bool receiving{false};
-  bool auto_complete{true};
-  bool supported_version{true};
-
- protected:
-  uint8_t reply_byte_(const std::vector<uint8_t> &command) {
-    if (command.empty()) {
-      return 0;
-    }
-    const size_t pos = command.size();
-    switch (command[0]) {
-      case RADIO_READ_REGISTER:
-        if (pos >= 4) {
-          static constexpr char VERSION[16] = "SX1262";
-          return this->supported_version ? VERSION[pos - 4] : 0;
-        }
-        break;
-      case RADIO_GET_IRQSTATUS:
-        if (pos == 2) {
-          return this->irq >> 8;
-        }
-        if (pos == 3) {
-          return this->irq & 0xFF;
-        }
-        break;
-      case RADIO_GET_PACKETSTATUS:
-        if (pos == 2) {
-          return 80;
-        }
-        if (pos == 3) {
-          return 40;
-        }
-        if (pos == 4) {
-          return 84;
-        }
-        break;
-      case RADIO_GET_RXBUFFERSTATUS:
-        if (pos == 2) {
-          return this->packet.size();
-        }
-        if (pos == 3) {
-          return 7;
-        }
-        break;
-      case RADIO_READ_BUFFER:
-        if (pos >= 3) {
-          EXPECT_EQ(command[1], 7);
-          return this->packet[pos - 3];
-        }
-        break;
-      default:
-        break;
-    }
-    return 0;
-  }
-
-  bool selected_{false};
-  uint8_t bit_{0};
-  uint8_t byte_{0};
-};
-
-class PacketListener : public SX126xListener {
- public:
-  void on_packet(const std::vector<uint8_t> &packet, float rssi, float snr) override {
-    this->packets.push_back(packet);
-    this->rssi = rssi;
-    this->snr = snr;
-  }
-  std::vector<std::vector<uint8_t>> packets;
-  float rssi{};
-  float snr{};
-};
-
-}  // namespace esphome::sx126x::testing

tests/components/whirlpool/__init__.py

@@ -10,8 +10,7 @@ def override_manifest(manifest: ComponentManifestOverride) -> None:
     manifest.auto_load = ["climate_ir", "climate"]
 
     async def to_code_testing(config: ConfigType) -> None:
-        # Compiles in the Hisense ARG and Hitachi models, which climate.py adds only when configured
+        # Compiles in the Hisense ARG model, which climate.py adds only when it is configured
         cg.add_define("USE_WHIRLPOOL_HISENSE_ARG")
-        cg.add_define("USE_WHIRLPOOL_HITACHI_HCRA31NEWH")
 
     manifest.to_code = to_code_testing

tests/components/whirlpool/common.yaml

@@ -8,8 +8,3 @@ climate:
     model: HISENSE_ARG
     transmitter_id: xmitr
     receiver_id: rcvr
-  - platform: whirlpool
-    name: Whirlpool Hitachi HCRA31NEWH Climate
-    model: HITACHI_HCRA31NEWH
-    transmitter_id: xmitr
-    receiver_id: rcvr

tests/components/whirlpool/whirlpool_tests.cpp

@@ -252,9 +252,6 @@ TEST(WhirlpoolHisenseArg, SwingIsSentOnEveryTransmit) {
 
 TEST(WhirlpoolDG11J13A, SwingIsSentOnlyWhenItChanges) {
   Fixture f(MODEL_DG11J1_3A);
-  f.command(climate::CLIMATE_MODE_COOL, 24, climate::CLIMATE_FAN_LOW, climate::CLIMATE_SWING_OFF);
-  EXPECT_EQ(f.last_frame()[2] & 0x80, 0) << "swing is already off";
-
   f.command(climate::CLIMATE_MODE_COOL, 24, climate::CLIMATE_FAN_LOW, climate::CLIMATE_SWING_VERTICAL);
   Frame frame = f.last_frame();
   EXPECT_EQ(frame[2] & 0x80, 0x80);
@@ -264,9 +261,6 @@ TEST(WhirlpoolDG11J13A, SwingIsSentOnlyWhenItChanges) {
   frame = f.last_frame();
   EXPECT_EQ(frame[2] & 0x80, 0);
   EXPECT_EQ(frame[8], 0x00);
-
-  f.command(climate::CLIMATE_MODE_COOL, 25, climate::CLIMATE_FAN_LOW, climate::CLIMATE_SWING_VERTICAL);
-  EXPECT_EQ(f.last_frame()[2] & 0x80, 0) << "swing is already vertical";
 }
 
 // Cool 24 C (step 8), fan low, powered on assumed
@@ -391,90 +385,4 @@ TEST(WhirlpoolHisenseArg, EveryTransmitHasValidChecksums) {
   }
 }
 
-// Cool 24 C (step 8), fan low, unit on
-static Frame hitachi_cool_frame() {
-  return with_checksums({0xA9, 0x59, 0x03, 0x82, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x20,
-                         0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x38, 0x08, 0x00});
-}
-
-// The off frame: power bit, cool code, byte 15 0x01 and byte 18 0x28
-static Frame hitachi_off_frame() {
-  return with_checksums({0xA9, 0x59, 0x07, 0x82, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x20,
-                         0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x28, 0x08, 0x00});
-}
-
-TEST(WhirlpoolHitachiHCRA31NEWH, CoolAndOffMatchKnownFrames) {
-  Fixture f(MODEL_HITACHI_HCRA31NEWH);
-  f.command(climate::CLIMATE_MODE_COOL, 24, climate::CLIMATE_FAN_LOW);
-  // Turning on sends the full state with no power bit
-  expect_frame(f.last_frame(), hitachi_cool_frame());
-
-  f.command(climate::CLIMATE_MODE_OFF, 24, climate::CLIMATE_FAN_LOW);
-  expect_frame(f.last_frame(), hitachi_off_frame());
-
-  // A second off command still sends the power bit
-  f.command(climate::CLIMATE_MODE_OFF, 24, climate::CLIMATE_FAN_LOW);
-  EXPECT_EQ(f.last_frame()[2] & 0x04, 0x04);
-
-  f.command(climate::CLIMATE_MODE_HEAT, 24, climate::CLIMATE_FAN_LOW);
-  const Frame frame = f.last_frame();
-  EXPECT_EQ(frame[2] & 0x04, 0);
-  EXPECT_EQ(frame[3], 0x80);
-  EXPECT_EQ(frame[15], 0x06);
-  EXPECT_EQ(frame[18], 0x38);
-}
-
-TEST(WhirlpoolHitachiHCRA31NEWH, ReceivePowerIsAState) {
-  Fixture f(MODEL_HITACHI_HCRA31NEWH);
-  ASSERT_EQ(f.climate.mode, climate::CLIMATE_MODE_OFF);
-
-  // An on frame restores the mode even though it has no power bit
-  EXPECT_TRUE(receive(f.climate, hitachi_cool_frame()));
-  EXPECT_EQ(f.climate.mode, climate::CLIMATE_MODE_COOL);
-  EXPECT_FLOAT_EQ(f.climate.target_temperature, 24);
-  EXPECT_EQ(f.climate.fan_mode, climate::CLIMATE_FAN_LOW);
-  // The same frame again keeps it on
-  EXPECT_TRUE(receive(f.climate, hitachi_cool_frame()));
-  EXPECT_EQ(f.climate.mode, climate::CLIMATE_MODE_COOL);
-
-  EXPECT_TRUE(receive(f.climate, hitachi_off_frame()));
-  EXPECT_EQ(f.climate.mode, climate::CLIMATE_MODE_OFF);
-  // A repeated off frame does not toggle
-  EXPECT_TRUE(receive(f.climate, hitachi_off_frame()));
-  EXPECT_EQ(f.climate.mode, climate::CLIMATE_MODE_OFF);
-}
-
-TEST(WhirlpoolHitachiHCRA31NEWH, ReceiveChecksRemoteId) {
-  Fixture hitachi(MODEL_HITACHI_HCRA31NEWH);
-  EXPECT_FALSE(receive(hitachi.climate, hisense_cool_frame()));
-  Fixture whirlpool(MODEL_DG11J1_91);
-  EXPECT_FALSE(receive(whirlpool.climate, hitachi_cool_frame()));
-}
-
-TEST(WhirlpoolHitachiHCRA31NEWH, ReceivedTemperatureIsClamped) {
-  Fixture f(MODEL_HITACHI_HCRA31NEWH);
-  Frame frame = hitachi_cool_frame();
-  frame[3] = 0xF2;  // step 15 would be 31 C
-  EXPECT_TRUE(receive(f.climate, with_checksums(frame)));
-  EXPECT_FLOAT_EQ(f.climate.target_temperature, 30);
-}
-
-TEST(WhirlpoolDG11J13A, TargetIsClampedAndRoundedToWhatWasSent) {
-  Fixture f(MODEL_DG11J1_3A);
-  f.command(climate::CLIMATE_MODE_COOL, 35, climate::CLIMATE_FAN_LOW);
-  EXPECT_FLOAT_EQ(f.climate.target_temperature, 32);
-  f.command(climate::CLIMATE_MODE_COOL, 24.4f, climate::CLIMATE_FAN_LOW);
-  EXPECT_FLOAT_EQ(f.climate.target_temperature, 24);
-}
-
-TEST(WhirlpoolHitachiHCRA31NEWH, ReceiveRejectsShortFrame) {
-  Fixture f(MODEL_HITACHI_HCRA31NEWH);
-  remote_base::RawTimings raw = waveform(hitachi_cool_frame());
-  // Cut after the second divider: 14 bytes, no footer
-  raw.resize(2 + 14 * 16 + 2 * 2);
-  remote_base::RemoteReceiveData data(raw, 25, remote_base::TOLERANCE_MODE_PERCENTAGE);
-  EXPECT_FALSE(static_cast<remote_base::RemoteReceiverListener &>(f.climate).on_receive(data));
-  EXPECT_EQ(f.climate.mode, climate::CLIMATE_MODE_OFF);
-}
-
 }  // namespace esphome::whirlpool::testing

tests/integration/fixtures/external_components/reboot_hook_recorder/__init__.py

@@ -1,23 +0,0 @@
-import esphome.codegen as cg
-import esphome.config_validation as cv
-from esphome.const import CONF_ID, CONF_NAME
-from esphome.types import ConfigType
-
-CODEOWNERS = ["@esphome/tests"]
-MULTI_CONF = True
-
-reboot_hook_recorder_ns = cg.esphome_ns.namespace("reboot_hook_recorder")
-RebootHookRecorder = reboot_hook_recorder_ns.class_("RebootHookRecorder", cg.Component)
-
-CONFIG_SCHEMA = cv.Schema(
-    {
-        cv.GenerateID(): cv.declare_id(RebootHookRecorder),
-        cv.Required(CONF_NAME): cv.string,
-    }
-).extend(cv.COMPONENT_SCHEMA)
-
-
-async def to_code(config: ConfigType) -> None:
-    var = cg.new_Pvariable(config[CONF_ID])
-    await cg.register_component(var, config)
-    cg.add(var.set_name(config[CONF_NAME]))

tests/integration/fixtures/external_components/reboot_hook_recorder/reboot_hook_recorder.cpp

@@ -1,10 +0,0 @@
-#include "reboot_hook_recorder.h"
-#include "esphome/core/log.h"
-
-namespace esphome::reboot_hook_recorder {
-
-ESPHOME_LOG_TAG(TAG, "reboot_hook_recorder");
-
-void RebootHookRecorder::record_(const char *hook) { ESP_LOGI(TAG, "HOOK %s %s", this->name_, hook); }
-
-}  // namespace esphome::reboot_hook_recorder

tests/integration/fixtures/external_components/reboot_hook_recorder/reboot_hook_recorder.h

@@ -1,33 +0,0 @@
-#pragma once
-
-#include "esphome/core/component.h"
-
-namespace esphome::reboot_hook_recorder {
-
-/// Logs every shutdown lifecycle hook it receives, so a test can check their order.
-class RebootHookRecorder : public Component {
- public:
-  void set_name(const char *name) { this->name_ = name; }
-
-  void on_safe_shutdown() override { this->record_("on_safe_shutdown"); }
-  void on_shutdown() override { this->record_("on_shutdown"); }
-  // Needs a second call to finish, like a component waiting for a connection to close
-  bool teardown() override {
-    if (++this->teardown_calls_ < 2) {
-      this->record_("teardown_pending");
-      return false;
-    }
-    if (this->teardown_calls_ == 2)
-      this->record_("teardown_done");
-    return true;
-  }
-  void on_powerdown() override { this->record_("on_powerdown"); }
-
- protected:
-  void record_(const char *hook);
-
-  const char *name_{""};
-  uint8_t teardown_calls_{0};
-};
-
-}  // namespace esphome::reboot_hook_recorder

tests/integration/fixtures/reboot_hook_order_forced.yaml

@@ -1,19 +0,0 @@
-esphome:
-  name: reboot-hooks-forced
-host:
-logger:
-  level: DEBUG
-api:
-  # Reboot once the test has connected, so that it sees every hook
-  on_client_connected:
-    - delay: 100ms
-    - lambda: App.reboot();
-
-external_components:
-  - source:
-      type: local
-      path: EXTERNAL_COMPONENT_PATH
-
-reboot_hook_recorder:
-  - name: first
-  - name: second

tests/integration/fixtures/reboot_hook_order_safe.yaml

@@ -1,19 +0,0 @@
-esphome:
-  name: reboot-hooks-safe
-host:
-logger:
-  level: DEBUG
-api:
-  # Reboot once the test has connected, so that it sees every hook
-  on_client_connected:
-    - delay: 100ms
-    - lambda: App.safe_reboot();
-
-external_components:
-  - source:
-      type: local
-      path: EXTERNAL_COMPONENT_PATH
-
-reboot_hook_recorder:
-  - name: first
-  - name: second

tests/integration/test_reboot_hook_order.py

@@ -1,80 +0,0 @@
-"""Test the order of the shutdown lifecycle hooks on a forced and on a safe reboot."""
-
-import re
-
-import pytest
-
-from .log_utils import LineWaiter
-from .types import APIClientConnectedFactory, RunCompiledFunction
-from .wait_utils import wait_or_fail
-
-HOOK_PATTERN = re.compile(r"HOOK (\w+) (\w+)")
-# Hooks run in reverse component order, so "first" gets each hook last.
-LAST_HOOK = "HOOK first on_powerdown"
-
-
-async def _record_reboot_hooks(
-    yaml_config: str,
-    run_compiled: RunCompiledFunction,
-    api_client_connected: APIClientConnectedFactory,
-) -> list[tuple[str, str]]:
-    """Connect, which makes the device reboot, and return its (component, hook) calls in order."""
-    waiter = LineWaiter()
-    hooks: list[tuple[str, str]] = []
-
-    def on_line(line: str) -> None:
-        if match := HOOK_PATTERN.search(line):
-            hooks.append((match[1], match[2]))
-        waiter.callback(line)
-
-    async with (
-        run_compiled(yaml_config, line_callback=on_line),
-        api_client_connected(),
-    ):
-        await wait_or_fail(
-            waiter.wait_for(LAST_HOOK),
-            5.0,
-            "Device did not run the powerdown hooks",
-            hooks=hooks,
-        )
-    return hooks
-
-
-@pytest.mark.asyncio
-async def test_reboot_hook_order_forced(
-    yaml_config: str,
-    run_compiled: RunCompiledFunction,
-    api_client_connected: APIClientConnectedFactory,
-) -> None:
-    """A forced reboot runs on_shutdown then on_powerdown, with no safe shutdown or teardown."""
-    hooks = await _record_reboot_hooks(yaml_config, run_compiled, api_client_connected)
-
-    assert hooks == [
-        ("second", "on_shutdown"),
-        ("first", "on_shutdown"),
-        ("second", "on_powerdown"),
-        ("first", "on_powerdown"),
-    ]
-
-
-@pytest.mark.asyncio
-async def test_reboot_hook_order_safe(
-    yaml_config: str,
-    run_compiled: RunCompiledFunction,
-    api_client_connected: APIClientConnectedFactory,
-) -> None:
-    """A safe reboot powers down only after every component has finished its teardown."""
-    hooks = await _record_reboot_hooks(yaml_config, run_compiled, api_client_connected)
-
-    assert hooks == [
-        ("second", "on_safe_shutdown"),
-        ("first", "on_safe_shutdown"),
-        ("second", "on_shutdown"),
-        ("first", "on_shutdown"),
-        ("second", "teardown_pending"),
-        ("first", "teardown_pending"),
-        ("second", "teardown_done"),
-        ("first", "teardown_done"),
-        ("second", "on_powerdown"),
-        ("first", "on_powerdown"),
-    ]

tests/unit_tests/analyze_memory/__init__.py

@@ -1,34 +1,15 @@
 """Tests for the memory analyzer."""
 
-import subprocess
 from unittest.mock import patch
 
 from esphome.analyze_memory import MemoryAnalyzer
 
 
-def make_analyzer[T: MemoryAnalyzer](
-    external_components: set[str] | None = None, cls: type[T] = MemoryAnalyzer
-) -> T:
-    """Create an analyzer through its real constructor, without an ELF or a toolchain."""
+def make_analyzer(external_components: set[str] | None = None) -> MemoryAnalyzer:
+    """Create a MemoryAnalyzer through its real constructor, without an ELF or a toolchain."""
     with (
         patch("esphome.analyze_memory.resolve_tool_path", return_value=None),
         patch("esphome.analyze_memory.find_tool", return_value="nm"),
     ):
         # Any existing file passes the ELF check; nothing reads it
-        return cls(__file__, external_components=external_components)
-
-
-def completed(stdout: str) -> subprocess.CompletedProcess[str]:
-    """A successful tool run printing ``stdout``."""
-    return subprocess.CompletedProcess([], 0, stdout=stdout)
-
-
-def hex_dump(section: str, data: bytes, address: int = 0) -> str:
-    """Format bytes the way ``readelf -x`` does."""
-    lines = [f"Hex dump of section '{section}':"]
-    for start in range(0, len(data), 16):
-        chunk = data[start : start + 16]
-        words = " ".join(chunk[i : i + 4].hex() for i in range(0, len(chunk), 4))
-        text = "".join(chr(b) if 32 <= b < 127 else "." for b in chunk)
-        lines.append(f"  0x{address + start:08x} {words:<35} {text}")
-    return "\n".join(lines) + "\n\n"
+        return MemoryAnalyzer(__file__, external_components=external_components)

tests/unit_tests/analyze_memory/test_source_file_attribution.py

@@ -1,7 +1,5 @@
 """Tests for source-file-to-component attribution in memory analyzer."""
 
-import pytest
-
 from . import make_analyzer
 
 
@@ -32,19 +30,3 @@ def test_source_file_to_component_known_component() -> None:
         "src/esphome/components/wifi/wifi_component.cpp.o"
     )
     assert result == "[esphome]wifi"
-
-
-@pytest.mark.parametrize(
-    ("rel_path", "component"),
-    [
-        (
-            "lib/esp32async__ESPAsyncWebServer/WebHandlers.cpp.o",
-            "[lib]espasyncwebserver",
-        ),
-        ("lib/ESP8266WiFi/ESP8266WiFi.cpp.o", "[lib]esp8266wifi"),
-        ("core/core_esp8266_main.cpp.o", "arduino_core"),
-    ],
-)
-def test_native_library_objects(rel_path: str, component: str) -> None:
-    """Objects of the native ESP8266 build's libraries and core get a component."""
-    assert make_analyzer()._source_file_to_component(rel_path) == component

tests/unit_tests/analyze_memory/test_string_literals.py

@@ -1,235 +0,0 @@
-"""Tests for attributing ESP8266 string literals in RAM to components."""
-
-from pathlib import Path
-import re
-import subprocess
-from unittest.mock import patch
-
-import pytest
-
-from esphome.analyze_memory import (
-    MemorySection,
-    StringLiteral,
-    _parse_string_sections,
-    _ram_string_size,
-)
-from esphome.analyze_memory.cli import MemoryAnalyzerCLI
-
-from . import completed, hex_dump, make_analyzer
-
-WEB_OBJ = "src/esphome/components/web_server/web_server.cpp.o"
-LIGHT_OBJ = "src/esphome/components/light/light_json_schema.cpp.o"
-COVER_JSON = "_ZN7esphome10web_server9WebServer11cover_json_Ev"
-MATCH_URL = "_ZN7esphome10web_serverL9match_urlEPKcjbb"
-DUMP_JSON = "_ZN7esphome5light15LightJSONSchema9dump_jsonEv"
-
-_SECTIONS = """\
-File: {web}
-
-Section Headers:
-  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
-  [ 7] .rodata           PROGBITS        00000000 000040 000008 00   A  0   0  4
-  [209] .rodata.str1.1    PROGBITS        00000000 000598 00000a 01 AMS  0   0  1
-  [481] .rodata.{cover_json}.str1.1 PROGBITS        00000000 003910 00000c 01 AMS  0   0  1
-
-File: {light}
-
-Section Headers:
-  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
-  [ 30] .rodata.{dump_json}.str1.1 PROGBITS        00000000 000100 000007 01 AMS  0   0  1
-"""
-
-
-def _sections(web: str, light: str) -> str:
-    """``readelf -SW`` output for the two objects."""
-    return _SECTIONS.format(
-        web=web, light=light, cover_json=COVER_JSON, dump_json=DUMP_JSON
-    )
-
-
-# "OPEN\0CLOSED\0" for cover_json_, "ON\0all\0none\0" shared by match_url
-WEB_STRINGS = (
-    f"""\
-Relocation section '.rela.text.{MATCH_URL}' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000004  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-
-"""
-    + hex_dump(".rodata.str1.1", b"ON\0all\0none\0")
-    + hex_dump(f".rodata.{COVER_JSON}.str1.1", b"OPEN\0CLOSED\0")
-)
-
-# The literal pool word of match_url holds the literal's offset, 3 ("all")
-WEB_REFERRERS = hex_dump(f".text.{MATCH_URL}", bytes(4) + (3).to_bytes(4, "little"))
-
-LIGHT_STRINGS = hex_dump(f".rodata.{DUMP_JSON}.str1.1", b"ON\0OFF\0")
-
-# Linked .rodata: "OPEN" and "ON" were dropped
-ELF_RODATA = hex_dump(".rodata", b"OFF\0CLOSED\0all\0", 0x3FFE86B0)
-
-
-def test_parse_string_sections() -> None:
-    """Only string literal sections are listed, named after their function or not."""
-    assert _parse_string_sections(_sections("web.o", "light.o")) == {
-        "web.o": {
-            "209": (".rodata.str1.1", None),
-            "481": (f".rodata.{COVER_JSON}.str1.1", COVER_JSON),
-        },
-        "light.o": {"30": (f".rodata.{DUMP_JSON}.str1.1", DUMP_JSON)},
-    }
-
-
-@pytest.mark.parametrize(
-    ("text", "expected"),
-    [
-        (b"OFF", 4),
-        (b"MON", 4),
-        # Stored only as the tail of "MON"
-        (b"ON", 0),
-        (b"missing", 0),
-        # After a float constant ending in 0x3f, not inside another literal
-        (b"all", 4),
-    ],
-)
-def test_ram_string_size(text: bytes, expected: int) -> None:
-    """A literal stored only as the tail of a longer one, or dropped, takes no RAM."""
-    rodata = b"MON\0OFF\0CLOSED\0\x00\x00\x80\x3fall\0"
-    literals = {b"MON", b"OFF", b"ON", b"CLOSED", b"all", b"missing"}
-    assert _ram_string_size(text, rodata, literals) == expected
-
-
-@pytest.fixture
-def obj_dir(tmp_path: Path) -> Path:
-    for rel in (WEB_OBJ, LIGHT_OBJ, "src/main.cpp.o"):
-        path = tmp_path / "obj" / rel
-        path.parent.mkdir(parents=True, exist_ok=True)
-        path.touch()
-    return tmp_path / "obj"
-
-
-def _new_analyzer(obj_dir: Path, kept: set[str]) -> MemoryAnalyzerCLI:
-    analyzer = make_analyzer(cls=MemoryAnalyzerCLI)
-    analyzer.elf_path = obj_dir.parent / "firmware.elf"
-    analyzer.rodata_in_ram = True
-    analyzer.sections[".data"] = MemorySection(".data", total_size=1000)
-    analyzer._elf_symbol_names = kept
-    # Unnamed constants have their own tests
-    analyzer._attribute_unnamed_constants = lambda *_: None
-    return analyzer
-
-
-def _analyze(obj_dir: Path, kept: set[str]) -> MemoryAnalyzerCLI:
-    analyzer = _new_analyzer(obj_dir, kept)
-    light = str(obj_dir / LIGHT_OBJ)
-    sections = _sections(str(obj_dir / WEB_OBJ), light)
-
-    def run_tool(cmd: list[str]) -> subprocess.CompletedProcess[str]:
-        if "-SW" in cmd:
-            return completed(sections)
-        if cmd[-1].endswith("firmware.elf"):
-            return completed(ELF_RODATA)
-        if cmd[-1] == light:
-            return completed(LIGHT_STRINGS)
-        if "-rW" not in cmd:
-            assert cmd[1:-1] == ["-x", f".text.{MATCH_URL}"]
-            return completed(WEB_REFERRERS)
-        return completed(WEB_STRINGS)
-
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        analyzer._analyze_object_rodata()
-    return analyzer
-
-
-def test_string_literals_attributed(obj_dir: Path) -> None:
-    """Each literal is counted once, with the bytes it takes in the linked .rodata."""
-    analyzer = _analyze(obj_dir, {COVER_JSON, MATCH_URL, DUMP_JSON})
-    assert analyzer._string_literals == [
-        StringLiteral("CLOSED", 7, {"[esphome]web_server": {COVER_JSON}}),
-        StringLiteral("OFF", 4, {"[esphome]light": {DUMP_JSON}}),
-        StringLiteral("all", 4, {"[esphome]web_server": {MATCH_URL}}),
-    ]
-    # "OPEN" and "ON" are not in the ELF
-    assert analyzer.components["[esphome]web_server"].data_size == 11
-    assert analyzer.components["[esphome]light"].data_size == 4
-    assert analyzer.sections[".data"].symbol_size == 15
-
-
-def test_string_literals_skip_dropped_functions(obj_dir: Path) -> None:
-    """Literals of functions the linker dropped are not charged."""
-    analyzer = _analyze(obj_dir, {DUMP_JSON})
-    assert [s.text for s in analyzer._string_literals] == ["OFF"]
-
-
-def test_string_literals_shared_between_components(obj_dir: Path) -> None:
-    """A literal two components use is listed under both and charged to neither."""
-    analyzer = _new_analyzer(obj_dir, {COVER_JSON, DUMP_JSON})
-    with (
-        patch.object(
-            analyzer,
-            "_scan_object_strings",
-            side_effect=[{b"OFF": {COVER_JSON}}, {b"OFF": {DUMP_JSON}}],
-        ),
-        patch("esphome.analyze_memory.run_tool", return_value=completed(ELF_RODATA)),
-    ):
-        analyzer._attribute_string_literals(
-            _sections(str(obj_dir / WEB_OBJ), str(obj_dir / LIGHT_OBJ)), obj_dir
-        )
-    (literal,) = analyzer._string_literals
-    assert literal.users == {
-        "[esphome]web_server": {COVER_JSON},
-        "[esphome]light": {DUMP_JSON},
-    }
-    assert analyzer.sections[".data"].symbol_size == 0
-    analyzer._demangle_cache = {COVER_JSON: "cover_json_()", DUMP_JSON: "dump_json()"}
-    report = analyzer.generate_report()
-    # Each component's row names its own user
-    assert re.search(r'"OFF" +cover_json_\(\)', report)
-    assert re.search(r'"OFF" +dump_json\(\)', report)
-
-
-def test_report_groups_by_component() -> None:
-    """Strings are listed by component with the function that uses them."""
-    analyzer = make_analyzer(cls=MemoryAnalyzerCLI)
-    analyzer._demangle_cache = {
-        "setup": "setup",
-        COVER_JSON: "WebServer::cover_json_()",
-    }
-    analyzer._string_literals = [
-        StringLiteral("hunter2", 8, {"[esphome]core": {"setup"}}),
-        StringLiteral("CLOSED", 7, {"[esphome]web_server": {COVER_JSON}}),
-    ]
-    report = analyzer.generate_report()
-    assert "String Literals in RAM (.rodata)" in report
-    assert "[esphome]core (8 B, 1 strings):" in report
-    assert '"hunter2"' in report
-    assert '"CLOSED"' in report
-    assert "WebServer::cover_json_()" in report
-
-
-def test_string_literals_through_unnamed_table() -> None:
-    """Literals reached through an unnamed pointer table go to the table's users."""
-    analyzer = make_analyzer()
-    relocations = """\
-Relocation section '.rela.text.setup' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Relocation section '.rela.rodata' at offset 0xe6fc contains 2 entries:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-00000004  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-
-""" + hex_dump(".rodata.str1.1", b"0.pool.ntp.org\0001.pool.ntp.org\0")
-    table = hex_dump(".rodata", (0).to_bytes(4, "little") + (15).to_bytes(4, "little"))
-
-    def run_tool(cmd: list[str]) -> subprocess.CompletedProcess[str]:
-        if "-rW" in cmd:
-            return completed(relocations)
-        assert cmd[1:-1] == ["-x", ".rodata"]
-        return completed(table)
-
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        users = analyzer._scan_object_strings(
-            "main.cpp.o", {"5": (".rodata.str1.1", None)}
-        )
-    assert users == {b"0.pool.ntp.org": {"setup"}, b"1.pool.ntp.org": {"setup"}}

tests/unit_tests/analyze_memory/test_unnamed_constants.py

@@ -1,477 +0,0 @@
-"""Tests for ESP8266 .rodata accounting and unnamed constant attribution."""
-
-from collections.abc import Callable
-from pathlib import Path
-import subprocess
-from unittest.mock import patch
-
-import pytest
-
-from esphome.analyze_memory import (
-    _CODE_SECTION_PATTERN,
-    MemoryAnalyzer,
-    MemorySection,
-    UnnamedConstant,
-    _FunctionDefinitions,
-    _parse_unnamed_rodata,
-    _RodataSection,
-)
-from esphome.analyze_memory.cli import MemoryAnalyzerCLI
-
-from . import completed, hex_dump, make_analyzer
-
-LIGHT_OBJ = "src/esphome/components/light/light_state.cpp.o"
-WEB_OBJ = "src/esphome/components/web_server/web_server.cpp.o"
-SETUP = "_ZN7esphome5light10LightState5setupEv"
-SAVE = "_ZN7esphome5light10LightState19save_remote_values_Ev"
-MATCH_URL = "_ZN7esphome10web_serverL9match_urlEPKcjbb"
-
-# readelf -SW -sW over all objects; the web section index and size vary per test
-HEADERS_AND_SYMBOLS = """\
-File: {light}
-
-Section Headers:
-  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
-  [124] .rodata._ZN7esphome5light10LightStateC2EPNS0_11LightOutputE.str1.1 PROGBITS        00000000 00067d 000001 01 AMS  0   0  1
-  [174] .rodata           PROGBITS        00000000 00139c 00002c 00   A  0   0  4
-  [221] .rodata.str1.1    PROGBITS        00000000 001f39 000005 01 AMS  0   0  1
-  [225] .rodata.BUILTIN_LED PROGBITS        00000000 001f54 000004 00   A  0   0  4
-
-Symbol table '.symtab' contains 348 entries:
-   Num:    Value  Size Type    Bind   Vis      Ndx Name
-     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
-   300: 00000000    64 FUNC    {bind:<6} DEFAULT  12 {setup}
-   301: 00000000    64 FUNC    {bind:<6} DEFAULT  13 {save}
-   347: 00000000     4 OBJECT  WEAK   DEFAULT  225 BUILTIN_LED
-
-File: {web}
-
-Section Headers:
-  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
-  [{web_index:>3}] .rodata           PROGBITS        00000000 000400 {web_size:06x} 00   A  0   0  4
-
-Symbol table '.symtab' contains 1 entries:
-   Num:    Value  Size Type    Bind   Vis      Ndx Name
-     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
-{web_symbols}"""
-
-LIGHT_OBJECT_DUMP = f"""\
-Relocation section '.rela.text.{SETUP}' at offset 0x7928 contains 2 entries:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-00000094  00003b14 R_XTENSA_SLOT0_OP      00000000   .text.{SETUP} + 82
-
-Relocation section '.rela.text.{SAVE}' at offset 0x7d28 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Relocation section '.rela.xt.prop' at offset 0x8000 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-000007d4  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Hex dump of section '.rodata':
-  0x00000000 0000803f 0000803f 0000803f 0000803f ...?...?...?...?
-  0x00000010 0000803f 0000803f 0000803f 0000803f ...?...?...?...?
-  0x00000020 0000803f 00000000 00000000          ...?........
-"""
-
-WEB_OBJECT_DUMP = f"""\
-Relocation section '.rela.text.{MATCH_URL}' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Hex dump of section '.rodata':
-  0x00000000 00000000 00000000 00000000 00000000 ................
-"""
-
-
-@pytest.fixture
-def obj_dir(tmp_path: Path) -> Path:
-    """Native ESP8266 build layout: objects under obj/, ELF next to it."""
-    for rel in (LIGHT_OBJ, WEB_OBJ, "src/main.cpp.o"):
-        path = tmp_path / "obj" / rel
-        path.parent.mkdir(parents=True, exist_ok=True)
-        path.touch()
-    return tmp_path / "obj"
-
-
-def _esp8266_analyzer(
-    obj_dir: Path,
-    kept: set[str],
-    web_index: int = 9,
-    web_size: int = 0x1C,
-    web_dump: str = WEB_OBJECT_DUMP,
-    bind: str = "GLOBAL",
-    web_symbols: str = "",
-) -> tuple[MemoryAnalyzer, Callable[..., subprocess.CompletedProcess[str]]]:
-    analyzer = make_analyzer()
-    analyzer.elf_path = obj_dir.parent / "firmware.elf"
-    analyzer.rodata_in_ram = True
-    analyzer.sections[".data"] = MemorySection(".data", total_size=1000)
-    analyzer._elf_symbol_names = kept
-    # String literals have their own tests
-    analyzer._attribute_string_literals = lambda *_: None
-    light = str(obj_dir / LIGHT_OBJ)
-    web = str(obj_dir / WEB_OBJ)
-
-    def run_tool(cmd: list[str]) -> subprocess.CompletedProcess[str]:
-        if "-SW" in cmd:
-            return completed(
-                HEADERS_AND_SYMBOLS.format(
-                    light=light,
-                    web=web,
-                    web_index=web_index,
-                    web_size=web_size,
-                    bind=bind,
-                    setup=SETUP,
-                    save=SAVE,
-                    web_symbols=web_symbols,
-                )
-            )
-        # Only sections with uncovered bytes are dumped
-        if cmd[-1] == light:
-            assert cmd[1:-1] == ["-rW", "-x", "174"]
-            return completed(LIGHT_OBJECT_DUMP)
-        return completed(web_dump)
-
-    return analyzer, run_tool
-
-
-def test_find_object_files_dir_native_layout(obj_dir: Path) -> None:
-    """The native ESP8266 build keeps objects under obj/."""
-    analyzer = make_analyzer()
-    analyzer.elf_path = obj_dir.parent / "firmware.elf"
-    assert analyzer._find_object_files_dir() == obj_dir
-
-
-def test_find_object_files_dir_platformio_layout(tmp_path: Path) -> None:
-    """PlatformIO keeps objects next to the ELF."""
-    (tmp_path / "src").mkdir()
-    (tmp_path / "src" / "main.cpp.o").touch()
-    analyzer = make_analyzer()
-    analyzer.elf_path = tmp_path / "firmware.elf"
-    assert analyzer._find_object_files_dir() == tmp_path
-
-
-def _parse_sections(code_section: str) -> MemoryAnalyzer:
-    readelf = f"""\
-  [ 1] .data             PROGBITS        3ffe8000 001000 000668 00 WAX  0   0 16
-  [ 4] {code_section}       PROGBITS        40201010 00b010 06612c 00 WAX  0   0 16
-  [ 6] .rodata           PROGBITS        3ffe86b0 0016b0 000b90 00   A  0   0 16
-"""
-    analyzer = make_analyzer()
-    with patch(
-        "esphome.analyze_memory.subprocess.run", return_value=completed(readelf)
-    ):
-        analyzer._parse_sections()
-    return analyzer
-
-
-def test_parse_sections_esp8266_counts_rodata_as_data() -> None:
-    """ESP8266 (.irom0.text) copies .rodata to RAM, so it is counted as .data."""
-    analyzer = _parse_sections(".irom0.text")
-    assert analyzer.rodata_in_ram
-    assert ".rodata" not in analyzer.sections
-    assert analyzer.sections[".data"].total_size == 0x668 + 0xB90
-
-
-def test_parse_sections_other_platforms_keep_rodata() -> None:
-    """Other platforms keep .rodata in flash."""
-    analyzer = _parse_sections(".flash.text")
-    assert not analyzer.rodata_in_ram
-    assert analyzer.sections[".rodata"].total_size == 0xB90
-    assert analyzer.sections[".data"].total_size == 0x668
-
-
-def test_unnamed_constants_attributed_to_component(obj_dir: Path) -> None:
-    """Unnamed .rodata in a kept function is listed and counted as the component's RAM."""
-    analyzer, run_tool = _esp8266_analyzer(obj_dir, {SETUP, MATCH_URL})
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        analyzer._analyze_object_rodata()
-
-    light, web = analyzer._unnamed_constants
-    assert light == UnnamedConstant(
-        size=44,
-        source_file=LIGHT_OBJ,
-        component="[esphome]light",
-        functions=[SAVE, SETUP],
-        jump_table=False,
-        data=bytes.fromhex("0000803f") * 4,
-    )
-    assert (web.size, web.component, web.functions) == (
-        28,
-        "[esphome]web_server",
-        [MATCH_URL],
-    )
-    assert analyzer.components["[esphome]light"].data_size == 44
-    assert analyzer.components["[esphome]web_server"].ram_total == 28
-    # Attributed bytes no longer count as unattributed RAM
-    assert analyzer.sections[".data"].symbol_size == 72
-
-
-def test_unnamed_constants_skip_garbage_collected(obj_dir: Path) -> None:
-    """A constant whose functions the linker dropped is not in the firmware."""
-    analyzer, run_tool = _esp8266_analyzer(obj_dir, {MATCH_URL})
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        analyzer._analyze_object_rodata()
-    assert [c.component for c in analyzer._unnamed_constants] == ["[esphome]web_server"]
-
-
-def test_unnamed_constants_skipped_when_rodata_in_flash(obj_dir: Path) -> None:
-    """Other platforms keep .rodata in flash, so there is nothing to scan."""
-    analyzer, run_tool = _esp8266_analyzer(obj_dir, {SETUP, MATCH_URL})
-    analyzer.rodata_in_ram = False
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool) as mock:
-        analyzer._analyze_object_rodata()
-    mock.assert_not_called()
-    assert analyzer._unnamed_constants == []
-
-
-@pytest.mark.parametrize(("bind", "expected"), [("WEAK", 1), ("GLOBAL", 2)])
-def test_unnamed_constants_inline_copies_counted_once(
-    obj_dir: Path, bind: str, expected: int
-) -> None:
-    """Only weak (inline) functions bring the same constant from several objects."""
-    # The second object emits the same functions, with the same binding
-    analyzer, run_tool = _esp8266_analyzer(
-        obj_dir,
-        {SETUP},
-        web_index=174,
-        web_size=0x2C,
-        web_dump=LIGHT_OBJECT_DUMP,
-        bind=bind,
-        web_symbols=(
-            f"   300: 00000000    64 FUNC    {bind:<6} DEFAULT  12 {SETUP}\n"
-            f"   301: 00000000    64 FUNC    {bind:<6} DEFAULT  13 {SAVE}\n"
-        ),
-    )
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        analyzer._analyze_object_rodata()
-    assert len(analyzer._unnamed_constants) == expected
-    assert analyzer.sections[".data"].symbol_size == 44 * expected
-
-
-def test_parse_symbols_keeps_alias_names() -> None:
-    """C1/C2 constructor aliases share an address; both names are in the ELF."""
-    objdump = """4020b558 g     F .irom0.text\t0000007e _ZN7esphome3FooC1Ev
-4020b558 g     F .irom0.text\t0000007e _ZN7esphome3FooC2Ev
-"""
-    analyzer = make_analyzer()
-    analyzer.sections[".text"] = MemorySection(".text")
-    with patch(
-        "esphome.analyze_memory.subprocess.run", return_value=completed(objdump)
-    ):
-        analyzer._parse_symbols()
-    assert {"_ZN7esphome3FooC1Ev", "_ZN7esphome3FooC2Ev"} <= analyzer._elf_symbol_names
-    assert analyzer.sections[".text"].symbol_size == 0x7E
-
-
-def test_unnamed_constants_skip_named_bytes() -> None:
-    """In a section shared with a named object, only the unnamed bytes are shown."""
-    analyzer = make_analyzer()
-    analyzer._elf_symbol_names = {"_Z3fooi"}
-    dump = """Relocation section '.rela.text._Z3fooi' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 4
-
-Hex dump of section '.rodata':
-  0x00000000 aaaaaaaa 01020304                   ........
-"""
-    section = _RodataSection(".rodata", 8, covered=[(0, 4)])
-    with patch("esphome.analyze_memory.run_tool", return_value=completed(dump)):
-        (constant,) = analyzer._scan_object_constants(
-            "foo.o", {"5": section}, "src/foo.o", "[esphome]foo"
-        )
-    assert constant.size == 4
-    assert constant.data == bytes([1, 2, 3, 4])
-
-
-def test_unnamed_constants_jump_table() -> None:
-    """A .rodata section that points into code is a switch jump table."""
-    analyzer = make_analyzer()
-    analyzer._elf_symbol_names = {"_Z3fooi"}
-    dump = """\
-Relocation section '.rela.text._Z3fooi' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Relocation section '.rela.rodata' at offset 0x200 contains 2 entries:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003b01 R_XTENSA_32            00000000   .text._Z3fooi + 12
-00000004  00003b01 R_XTENSA_32            00000000   .text._Z3fooi + 20
-"""
-    with patch("esphome.analyze_memory.run_tool", return_value=completed(dump)):
-        (constant,) = analyzer._scan_object_constants(
-            "foo.o", {"5": _RodataSection(".rodata", 8)}, "src/foo.o", "[esphome]foo"
-        )
-    assert constant.jump_table
-    assert constant.functions == ["_Z3fooi"]
-
-
-def test_report_lists_unnamed_constants() -> None:
-    """The report names the component, the object, the functions and the bytes."""
-    analyzer = make_analyzer(cls=MemoryAnalyzerCLI)
-    analyzer.rodata_in_ram = True
-    analyzer._demangle_cache = {SETUP: "esphome::light::LightState::setup()"}
-    analyzer._unnamed_constants = [
-        UnnamedConstant(
-            size=44,
-            source_file=LIGHT_OBJ,
-            component="[esphome]light",
-            functions=[SETUP],
-            jump_table=False,
-            data=bytes.fromhex("0000803f") * 4,
-        )
-    ]
-    report = analyzer.generate_report()
-    assert "ESP8266 keeps .rodata in RAM" in report
-    assert "Unnamed Constants in RAM (.rodata)" in report
-    assert f"44 B constant     [esphome]light ({LIGHT_OBJ})" in report
-    assert "used by esphome::light::LightState::setup()" in report
-    assert "bytes: 00 00 80 3f 00 00 80 3f 00 00 80 3f 00 00 80 3f ..." in report
-
-
-def test_unnamed_constants_resolve_string_pointers() -> None:
-    """A constant of pointers to literals lists the strings, so it can be recognized."""
-    analyzer = make_analyzer()
-    analyzer._elf_symbol_names = {"setup"}
-    relocations = """\
-Relocation section '.rela.text.setup' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 0
-
-Relocation section '.rela.rodata' at offset 0xe6fc contains 3 entries:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-00000004  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-00000008  00000501 R_XTENSA_32            00000000   .rodata.str1.1 + 0
-
-Hex dump of section '.rodata':
-  0x00000000 00000000 0f000000 1e000000          ............
-"""
-    literals = hex_dump(
-        ".rodata.str1.1", b"0.pool.ntp.org\0001.pool.ntp.org\0002.pool.ntp.org\0"
-    )
-
-    def run_tool(cmd: list[str]) -> subprocess.CompletedProcess[str]:
-        if "-rW" not in cmd:
-            assert cmd[1:-1] == ["-x", ".rodata.str1.1"]
-            return completed(literals)
-        return completed(relocations)
-
-    with patch("esphome.analyze_memory.run_tool", side_effect=run_tool):
-        (constant,) = analyzer._scan_object_constants(
-            "main.cpp.o",
-            {"5": _RodataSection(".rodata", 12)},
-            "src/main.cpp.o",
-            "[esphome]core",
-        )
-    assert constant.strings == ["0.pool.ntp.org", "1.pool.ntp.org", "2.pool.ntp.org"]
-
-    cli = make_analyzer(cls=MemoryAnalyzerCLI)
-    cli._unnamed_constants = [constant]
-    assert (
-        'points to "0.pool.ntp.org", "1.pool.ntp.org", "2.pool.ntp.org"'
-        in cli.generate_report()
-    )
-
-
-@pytest.mark.parametrize(
-    ("section", "function"),
-    [
-        (".text._Z3foov", "_Z3foov"),
-        (".literal._Z3foov", "_Z3foov"),
-        (".irom0.text._Z3foov", "_Z3foov"),
-        (".text.startup._GLOBAL__sub_I_setup", "_GLOBAL__sub_I_setup"),
-        (".text.unlikely._Z3foov", "_Z3foov"),
-        (".iram.text._Z3foov", "_Z3foov"),
-        (".text.hot_path", "hot_path"),
-        (".text", None),
-    ],
-)
-def test_code_section_function(section: str, function: str | None) -> None:
-    """Placement prefixes and IRAM code still resolve to the function."""
-    match = _CODE_SECTION_PATTERN.match(section)
-    assert match is not None
-    assert match.group(1) == function
-
-
-def test_unnamed_constants_same_object_not_merged(obj_dir: Path) -> None:
-    """Two equal constants of one inline function in one object are both counted."""
-    analyzer, run_tool = _esp8266_analyzer(obj_dir, {SETUP}, bind="WEAK")
-    constant = UnnamedConstant(
-        size=8,
-        source_file=LIGHT_OBJ,
-        component="[esphome]light",
-        functions=[SAVE, SETUP],
-        jump_table=False,
-        data=b"",
-    )
-    light = str(obj_dir / LIGHT_OBJ)
-    with (
-        patch("esphome.analyze_memory.run_tool", side_effect=run_tool),
-        patch.object(
-            analyzer,
-            "_scan_object_constants",
-            side_effect=lambda path, *_: [constant, constant] if path == light else [],
-        ),
-    ):
-        analyzer._analyze_object_rodata()
-    assert len(analyzer._unnamed_constants) == 2
-
-
-def test_unnamed_constants_jump_table_only_from_unnamed_bytes() -> None:
-    """Code pointers in a named table at the start do not make the rest a jump table."""
-    analyzer = make_analyzer()
-    analyzer._elf_symbol_names = {"_Z3fooi"}
-    dump = """\
-Relocation section '.rela.text._Z3fooi' at offset 0x100 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003a01 R_XTENSA_32            00000000   .rodata + 4
-
-Relocation section '.rela.rodata' at offset 0x200 contains 1 entry:
- Offset     Info    Type                Sym. Value  Symbol's Name + Addend
-00000000  00003b01 R_XTENSA_32            00000000   .text._Z3fooi + 12
-
-"""
-    section = _RodataSection(".rodata", 8, covered=[(0, 4)])
-    with patch("esphome.analyze_memory.run_tool", return_value=completed(dump)):
-        (constant,) = analyzer._scan_object_constants(
-            "foo.o", {"5": section}, "src/foo.o", "[esphome]foo"
-        )
-    assert not constant.jump_table
-
-
-def _definitions(rows: dict[str, list[tuple[str, str]]]) -> _FunctionDefinitions:
-    """Parse symbol rows (binding, function) per object, as readelf -sW prints them."""
-    output = "".join(
-        f"File: {path}\n"
-        + "".join(
-            f"   {i}: 00000000    64 FUNC    {bind:<6} DEFAULT   12 {name}\n"
-            for i, (bind, name) in enumerate(symbols)
-        )
-        for path, symbols in rows.items()
-    )
-    return _parse_unnamed_rodata(output)[1]
-
-
-def test_linked_copy_unknown_weak_overridden_by_strong() -> None:
-    """A strong definition replaces every weak copy, so their constants are not linked."""
-    definitions = _definitions(
-        {"a.o": [("WEAK", "_Z3foov")], "b.o": [("GLOBAL", "_Z3foov")]}
-    )
-    assert definitions.linked_copy_unknown("a.o", ["_Z3foov"])
-    assert not definitions.linked_copy_unknown("b.o", ["_Z3foov"])
-
-
-def test_linked_copy_unknown_same_named_locals() -> None:
-    """Local functions with one name in two objects can't be told apart in the ELF."""
-    definitions = _definitions(
-        {
-            "a.o": [("LOCAL", "_ZL3barv"), ("LOCAL", "_ZL3bazv")],
-            "b.o": [("LOCAL", "_ZL3barv")],
-        }
-    )
-    assert definitions.linked_copy_unknown("a.o", ["_ZL3barv"])
-    # Another, unique user decides it
-    assert not definitions.linked_copy_unknown("a.o", ["_ZL3barv", "_ZL3bazv"])