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Merge branch 'master' into esp32s2

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This commit is contained in:
Me No Dev
2020-05-11 23:35:43 +03:00
committed by GitHub
parent 49c47884a7 49b76649f1
commit c2be29eb97
15 changed files with 890 additions and 40 deletions
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36
cores/esp32/esp32-hal-uart.c
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@@ -118,7 +118,7 @@ static void IRAM_ATTR _uart_isr(void *arg)
while(uart->dev->status.rxfifo_cnt) {
c = uart->dev->ahb_fifo.rw_byte;
#endif
if(uart->queue != NULL && !xQueueIsQueueFullFromISR(uart->queue)) {
if(uart->queue != NULL) {
xQueueSendFromISR(uart->queue, &c, &xHigherPriorityTaskWoken);
}
}
@@ -247,6 +247,11 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
uart->dev->conf0.stop_bit_num = ONE_STOP_BITS_CONF;
uart->dev->rs485_conf.dl1_en = 1;
}
// tx_idle_num : idle interval after tx FIFO is empty(unit: the time it takes to send one bit under current baudrate)
// Setting it to 0 prevents line idle time/delays when sending messages with small intervals
uart->dev->idle_conf.tx_idle_num = 0; //
UART_MUTEX_UNLOCK();
if(rxPin != -1) {
@@ -304,7 +309,7 @@ uint32_t uartAvailable(uart_t* uart)
if(uart == NULL || uart->queue == NULL) {
return 0;
}
return uxQueueMessagesWaiting(uart->queue);
return (uxQueueMessagesWaiting(uart->queue) + uart->dev->status.rxfifo_cnt) ;
}
uint32_t uartAvailableForWrite(uart_t* uart)
@@ -315,12 +320,35 @@ uint32_t uartAvailableForWrite(uart_t* uart)
return 0x7f - uart->dev->status.txfifo_cnt;
}
void uartRxFifoToQueue(uart_t* uart)
{
uint8_t c;
UART_MUTEX_LOCK();
//disable interrupts
uart->dev->int_ena.val = 0;
uart->dev->int_clr.val = 0xffffffff;
while (uart->dev->status.rxfifo_cnt || (uart->dev->mem_rx_status.wr_addr != uart->dev->mem_rx_status.rd_addr)) {
c = uart->dev->fifo.rw_byte;
xQueueSend(uart->queue, &c, 0);
}
//enable interrupts
uart->dev->int_ena.rxfifo_full = 1;
uart->dev->int_ena.frm_err = 1;
uart->dev->int_ena.rxfifo_tout = 1;
uart->dev->int_clr.val = 0xffffffff;
UART_MUTEX_UNLOCK();
}
uint8_t uartRead(uart_t* uart)
{
if(uart == NULL || uart->queue == NULL) {
return 0;
}
uint8_t c;
if ((uxQueueMessagesWaiting(uart->queue) == 0) && (uart->dev->status.rxfifo_cnt > 0))
{
uartRxFifoToQueue(uart);
}
if(xQueueReceive(uart->queue, &c, 0)) {
return c;
}
@@ -333,6 +361,10 @@ uint8_t uartPeek(uart_t* uart)
return 0;
}
uint8_t c;
if ((uxQueueMessagesWaiting(uart->queue) == 0) && (uart->dev->status.rxfifo_cnt > 0))
{
uartRxFifoToQueue(uart);
}
if(xQueuePeek(uart->queue, &c, 0)) {
return c;
}