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HardwareSerial - availableForWrite() support (#1226)

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* HardwareSerial - availableForWrite() support

* fix indentation errors (tab vs space)
This commit is contained in:
mtabu
2018-04-06 18:07:46 +02:00
committed by Me No Dev
parent 149190fe11
commit aa1288aa6e
4 changed files with 14 additions and 0 deletions
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8
cores/esp32/esp32-hal-uart.c
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@ -248,6 +248,14 @@ uint32_t uartAvailable(uart_t* uart)
return uxQueueMessagesWaiting(uart->queue);
}
uint32_t uartAvailableForWrite(uart_t* uart)
{
if(uart == NULL) {
return 0;
}
return 0x7f - uart->dev->status.txfifo_cnt;
}
uint8_t uartRead(uart_t* uart)
{
if(uart == NULL || uart->queue == NULL) {