RTEMS | bsp/aarch64/raspberrypi: Add I2C interrupt support (!682)
Shaunak Datar (@skdatar)
gitlab at rtems.org
Tue Aug 26 09:12:24 UTC 2025
Shaunak Datar commented on a discussion on bsps/aarch64/raspberrypi/i2c/raspberrypi-i2c.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/682#note_129451
> bool read_transfer;
> } raspberrypi_i2c_bus;
>
> -static int i2c_polling_read( raspberrypi_i2c_bus *bus )
> +static int rpi_i2c_bus_transfer( raspberrypi_i2c_bus *bus )
> {
> - while ( !( S_REG( bus ) & S_DONE ) && ( bus->remaining_bytes > 0 ) ) {
> - while ( ( S_REG( bus ) & S_RXD ) && ( bus->remaining_bytes > 0 ) ) {
> + while ( bus->remaining_bytes > 0 ) {
> + if ( bus->read_transfer ) {
> + while ( ( S_REG( bus ) & S_RXD ) == 0 ) {
> + }
Ahh, my bad. Added S_CLKT too
--
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/682#note_129451
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