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Fix error handling in SPI master. (#11122)

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Co-authored-by: Dimitris Papavasiliou <dpapavas@gmail.com>
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Dimitris Papavasiliou 2020-12-06 03:50:02 +02:00 committed by GitHub
parent 54b932e844
commit 5cf70f3993
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 5 deletions
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16
drivers/avr/spi_master.c
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@ -140,27 +140,33 @@ spi_status_t spi_read() {
} }
spi_status_t spi_transmit(const uint8_t *data, uint16_t length) { spi_status_t spi_transmit(const uint8_t *data, uint16_t length) {
spi_status_t status = SPI_STATUS_ERROR; spi_status_t status;
for (uint16_t i = 0; i < length; i++) { for (uint16_t i = 0; i < length; i++) {
status = spi_write(data[i]); status = spi_write(data[i]);
if (status < 0) {
return status;
}
} }
return status; return SPI_STATUS_SUCCESS;
} }
spi_status_t spi_receive(uint8_t *data, uint16_t length) { spi_status_t spi_receive(uint8_t *data, uint16_t length) {
spi_status_t status = SPI_STATUS_ERROR; spi_status_t status;
for (uint16_t i = 0; i < length; i++) { for (uint16_t i = 0; i < length; i++) {
status = spi_read(); status = spi_read();
if (status > 0) { if (status >= 0) {
data[i] = status; data[i] = status;
} else {
return status;
} }
} }
return (status < 0) ? status : SPI_STATUS_SUCCESS; return SPI_STATUS_SUCCESS;
} }
void spi_stop(void) { void spi_stop(void) {