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Add functionality allowing rxBuffer of HardwareSerial to be changed in size via HardwareSerial::setRxBufferSize. (#1855)

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This commit is contained in:
Adam Coddington
2018-09-17 12:16:18 -07:00
committed by Me No Dev
parent 339618f8ef
commit ce61074802
4 changed files with 27 additions and 0 deletions
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20
cores/esp32/esp32-hal-uart.c
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@ -240,6 +240,26 @@ void uartEnd(uart_t* uart)
uartDetachTx(uart);
}
size_t uartResizeRxBuffer(uart_t * uart, size_t new_size) {
if(uart == NULL) {
return;
}
UART_MUTEX_LOCK();
if(uart->queue != NULL) {
uint8_t c;
while(xQueueReceive(uart->queue, &c, 0));
vQueueDelete(uart->queue);
uart->queue = xQueueCreate(new_size, sizeof(uint8_t));
if(uart->queue == NULL) {
return NULL;
}
}
UART_MUTEX_UNLOCK();
return new_size;
}
uint32_t uartAvailable(uart_t* uart)
{
if(uart == NULL || uart->queue == NULL) {