* uart: Add support for specifying the number of bits and parity.
ESP8266SwSerial doesn't really check parity but just read the parity bit
and ignore it when receiving data.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: support begin and end methods.
A component may need to reset uart buffer/status by using begin() and
end() methods. This is useful for example when a component needs to be
sure it is not reading garbage from previously received data over uart.
For end() methods with software serial, disabling interrupt is
currently impossible because of a bug in esp8266 Core:
https://github.com/esp8266/Arduino/issues/6049
Signed-off-by: 0hax <0hax@protonmail.com>
* esphal: add support for detaching an interrupt.
That's needed when a component needs to enable/disable interrupt on a
gpio.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: rename CONF_NR_BITS to CONF_DATA_BITS_NUMBER.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: use static const uint32_t instead of #define.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: use an enum to handle parity.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: split between esp32 and esp8266.
Signed-off-by: 0hax <0hax@protonmail.com>
* uart: check_uart_settings for parity and number of data bits.
Signed-off-by: 0hax <0hax@protonmail.com>
* name param data_bits
* add new params to test
Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>
