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J. Nick Koston
27a97f36af
Each backend arm now has a codegen-emitted USE_BLE_GATT_BACKEND_<NAME> define, making the alias ladder order-independent and letting the proxy capability constants describe the backend instead of the platform (a second esp32 backend carries its own facts). The legacy raw-gattc engine is selected by USE_BLE_CLIENT_LEGACY_ENGINE instead of platform identity, so esp32's future move to the neutral engine is one line per language. The address-scoped maintenance calls key on the stack define they wrap.
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
#include "bluetooth_connection.h"
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#ifdef USE_ESP32
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#include <esp_gap_ble_api.h>
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#include <esp_gattc_api.h>
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#endif
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#ifdef USE_BLUETOOTH_PROXY_CONNECTIONS
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#include "esphome/components/api/api_pb2.h"
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#include "esphome/core/log.h"
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namespace esphome::bluetooth_connection {
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static const char *const TAG = "bluetooth_connection";
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BatchClose close_service_batch(api::BluetoothGATTGetServicesResponse &resp, size_t ¤t_size, int16_t &send_service,
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uint8_t connection_index, const char *address_str) {
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// Calculate the actual size of just this service (+1 for the field tag)
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size_t service_size = resp.services.back().calculate_size() + 1;
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if (current_size + service_size > MAX_PACKET_SIZE) {
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if (resp.services.size() > 1) {
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// We would go over -- pop the last service and retry it in the next batch
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resp.services.pop_back();
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ESP_LOGD(TAG, "[%d] [%s] Service %d would exceed limit (current: %u + service: %u > %u), sending current batch",
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connection_index, address_str, send_service, (unsigned) current_size, (unsigned) service_size,
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(unsigned) MAX_PACKET_SIZE);
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// Don't advance send_service -- the popped service goes into the next batch
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} else {
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// This single service is too large, but we have to send it anyway;
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// advance so we don't get stuck
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ESP_LOGW(TAG, "[%d] [%s] Service %d is too large (%u bytes) but sending anyway", connection_index, address_str,
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send_service, (unsigned) service_size);
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send_service++;
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}
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return BatchClose::SEND;
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}
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current_size += service_size;
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send_service++;
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return BatchClose::CONTINUE;
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}
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} // namespace esphome::bluetooth_connection
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#endif // USE_BLUETOOTH_PROXY_CONNECTIONS
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#if defined(USE_ESP32_BLE) && defined(USE_BLE_GATT_CLIENT)
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namespace esphome::bluetooth_connection {
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// Address-scoped Bluedroid maintenance. Gated with the connection surface:
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// the advertisement-only arm no longer dispatches these requests at all.
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conn_err_t unpair_device(uint64_t address) {
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esp_bd_addr_t bda;
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ble_device_base::uint64_to_mac_msb_first(address, bda);
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return esp_ble_remove_bond_device(bda);
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}
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conn_err_t clear_gatt_cache(uint64_t address) {
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esp_bd_addr_t bda;
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ble_device_base::uint64_to_mac_msb_first(address, bda);
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return esp_ble_gattc_cache_clean(bda);
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}
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} // namespace esphome::bluetooth_connection
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#endif // USE_ESP32_BLE && USE_BLE_GATT_CLIENT
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