void UART0_IRQHandler(void)
{
if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_ERROR)
&& nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_ERROR))
{
nrf_uart_event_clear(NRF_UART0, NRF_UART_EVENT_ERROR);
}
if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_RXDRDY)
&& nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_RXDRDY))
{
rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_RX_IND);
}
if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_TXDRDY)
&& nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_TXDRDY))
{
rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_TX_DONE);
}
if (nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_RXTO))
{
rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_RX_TIMEOUT);
}
}
/** Interrupt driven pending status function */
static int uart_nrfx_irq_is_pending(struct device *dev)
{
return ((nrf_uart_int_enable_check(NRF_UART0,
NRF_UART_INT_MASK_TXDRDY) &&
uart_nrfx_irq_tx_ready(dev))
||
(nrf_uart_int_enable_check(NRF_UART0,
NRF_UART_INT_MASK_RXDRDY) &&
uart_nrfx_irq_rx_ready(dev)));
}
static void uart_irq_handler(NRF_UART_Type * p_uart,
uart_control_block_t * p_cb)
{
if (nrf_uart_int_enable_check(p_uart, NRF_UART_INT_MASK_ERROR) &&
nrf_uart_event_check(p_uart, NRF_UART_EVENT_ERROR))
{
nrfx_uart_event_t event;
nrf_uart_event_clear(p_uart, NRF_UART_EVENT_ERROR);
NRFX_LOG_DEBUG("Event: %s.", EVT_TO_STR(NRF_UART_EVENT_ERROR));
nrf_uart_int_disable(p_uart, NRF_UART_INT_MASK_RXDRDY |
NRF_UART_INT_MASK_ERROR);
if (!p_cb->rx_enabled)
{
nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STOPRX);
}
event.type = NRFX_UART_EVT_ERROR;
event.data.error.error_mask = nrf_uart_errorsrc_get_and_clear(p_uart);
event.data.error.rxtx.bytes = p_cb->rx_buffer_length;
event.data.error.rxtx.p_data = p_cb->p_rx_buffer;
// Abort transfer.
p_cb->rx_buffer_length = 0;
p_cb->rx_secondary_buffer_length = 0;
p_cb->handler(&event,p_cb->p_context);
}
else if (nrf_uart_int_enable_check(p_uart, NRF_UART_INT_MASK_RXDRDY) &&
nrf_uart_event_check(p_uart, NRF_UART_EVENT_RXDRDY))
{
rx_byte(p_uart, p_cb);
if (p_cb->rx_buffer_length == p_cb->rx_counter)
{
if (p_cb->rx_secondary_buffer_length)
{
uint8_t * p_data = p_cb->p_rx_buffer;
size_t rx_counter = p_cb->rx_counter;
// Switch to secondary buffer.
p_cb->rx_buffer_length = p_cb->rx_secondary_buffer_length;
p_cb->p_rx_buffer = p_cb->p_rx_secondary_buffer;
p_cb->rx_secondary_buffer_length = 0;
p_cb->rx_counter = 0;
rx_done_event(p_cb, rx_counter, p_data);
}
else
{
if (!p_cb->rx_enabled)
{
nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STOPRX);
}
nrf_uart_int_disable(p_uart, NRF_UART_INT_MASK_RXDRDY |
NRF_UART_INT_MASK_ERROR);
p_cb->rx_buffer_length = 0;
rx_done_event(p_cb, p_cb->rx_counter, p_cb->p_rx_buffer);
}
}
}
if (nrf_uart_event_check(p_uart, NRF_UART_EVENT_TXDRDY))
{
if (p_cb->tx_counter < p_cb->tx_buffer_length &&
!p_cb->tx_abort)
{
tx_byte(p_uart, p_cb);
}
else
{
nrf_uart_event_clear(p_uart, NRF_UART_EVENT_TXDRDY);
if (p_cb->tx_buffer_length)
{
tx_done_event(p_cb, p_cb->tx_buffer_length);
}
}
}
if (nrf_uart_event_check(p_uart, NRF_UART_EVENT_RXTO))
{
nrf_uart_event_clear(p_uart, NRF_UART_EVENT_RXTO);
// RXTO event may be triggered as a result of abort call. In th
if (p_cb->rx_enabled)
{
nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STARTRX);
}
if (p_cb->rx_buffer_length)
{
p_cb->rx_buffer_length = 0;
rx_done_event(p_cb, p_cb->rx_counter, p_cb->p_rx_buffer);
}
}
}
