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drivers: serial: pl011: Add err_check function

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Implementing err_check function by porting from
rpi_pico implementation.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
This commit is contained in:
TOKITA Hiroshi 2024-04-07 17:24:07 +09:00 • committed by Carles Cufí
commit e93cf224b6
1 changed files with 24 additions and 0 deletions
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24
drivers/serial/uart_pl011.c
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@ -153,6 +153,29 @@ static void pl011_poll_out(const struct device *dev,
get_uart(dev)->dr = (uint32_t)c;
}
static int pl011_err_check(const struct device *dev)
{
int errors = 0;
if (get_uart(dev)->rsr & PL011_RSR_ECR_OE) {
errors |= UART_ERROR_OVERRUN;
}
if (get_uart(dev)->rsr & PL011_RSR_ECR_BE) {
errors |= UART_BREAK;
}
if (get_uart(dev)->rsr & PL011_RSR_ECR_PE) {
errors |= UART_ERROR_PARITY;
}
if (get_uart(dev)->rsr & PL011_RSR_ECR_FE) {
errors |= UART_ERROR_FRAMING;
}
return errors;
}
static int pl011_runtime_configure_internal(const struct device *dev,
const struct uart_config *cfg,
bool disable)
@ -390,6 +413,7 @@ static void pl011_irq_callback_set(const struct device *dev,
static const struct uart_driver_api pl011_driver_api = {
.poll_in = pl011_poll_in,
.poll_out = pl011_poll_out,
.err_check = pl011_err_check,
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
.configure = pl011_runtime_configure,
.config_get = pl011_runtime_config_get,