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client uart: increase rx timeout

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This commit is contained in:
Philippe Teuwen 2019-04-21 01:38:24 +02:00
parent 4aa1b49493
commit a77ea12b77
1 changed files with 9 additions and 7 deletions
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16
uart/uart_posix.c
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@ -70,10 +70,11 @@ typedef struct {
term_info tiNew; // Terminal info during the transaction
} serial_port_unix;
// Set time-out on 30 miliseconds
// Set time-out on 300 milliseconds
// It was 30 ms for USB but we need more to receive from USART
struct timeval timeout = {
.tv_sec = 0, // 0 second
.tv_usec = 30000 // 30 000 micro seconds
.tv_usec = 300000 // 300 000 micro seconds
};
serial_port uart_open(const char *pcPortName, uint32_t speed) {
@ -257,7 +258,7 @@ bool uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, ui
// Read time-out
if (res == 0) {
if (*pszRxLen == 0) {
// Error, we received no data
// We received no data
return false;
} else {
// We received some data, but nothing more is available
@ -267,12 +268,12 @@ bool uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, ui
// Retrieve the count of the incoming bytes
res = ioctl(((serial_port_unix *)sp)->fd, FIONREAD, &byteCount);
printf("UART:: RX ioctl res %d byteCount %u\n", res, byteCount);
// printf("UART:: RX ioctl res %d byteCount %u\n", res, byteCount);
if (res < 0) return false;
// Cap the number of bytes, so we don't overrun the buffer
if (pszMaxRxLen - (*pszRxLen) < byteCount) {
printf("UART:: RX buffer overrun (have %u, need %u)\n", pszMaxRxLen - (*pszRxLen), byteCount);
// printf("UART:: RX prevent overrun (have %u, need %u)\n", pszMaxRxLen - (*pszRxLen), byteCount);
byteCount = pszMaxRxLen - (*pszRxLen);
}
@ -280,7 +281,9 @@ bool uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, ui
res = read(((serial_port_unix *)sp)->fd, pbtRx + (*pszRxLen), byteCount);
// Stop if the OS has some troubles reading the data
if (res <= 0) return false;
if (res <= 0) {
return false;
}
*pszRxLen += res;
@ -288,7 +291,6 @@ bool uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, ui
// We have all the data we wanted.
return true;
}
} while (byteCount);
return true;