The previous implementation called k_usleep to wait if the fifo was not
empty. This leads to an exception if called from an ISR (e.g. for
for logging).
In addition to that, the k_usleep leads to noticeable interruptions
when printing strings longer than the 64 bytes of the fifo.
With this commit, the function will busy-wait until all characters are
sent or if the timeout is reached. The timeout will only be reached if
no USB host is connected to the port. After the timeout is reached
once, the function will return immediately for subsequent calls
(dropping the characters to be sent) until the USB host is connected
again.
Fixes#60825
Signed-off-by: Martin Jäger <martin@libre.solar>
- Fixes missing poll out events when UART interrupt is enabled
- Fixes blocking USB interface during board start up.
Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
Any project with Kconfig option CONFIG_LEGACY_INCLUDE_PATH set to n
couldn't be built because some files were missing zephyr/ prefix in
includes
Re-run the migrate_includes.py script to fix all legacy include paths
Signed-off-by: Tomislav Milkovic <milkovic@byte-lab.com>
The built-in USB serial peripheral is a virtual serial and does not
allow to be configured like a normal UART.
Removing the unused UART config parameters.
Also reducing initialization to single-instance only.
Signed-off-by: Martin Jäger <martin@libre.solar>
This include is only required if typeof() macro is used, which
is not the case for the serial / uart driver.
Signed-off-by: Martin Jäger <martin@libre.solar>
This peripheral combines a hardware-based USB CDC ACM serial interface
and a JTAG interface.
It is present in the ESP32-C3.
Signed-off-by: Martin Jäger <martin@libre.solar>
