diff options
Diffstat (limited to 'include/spi.h')
| -rw-r--r-- | include/spi.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/spi.h b/include/spi.h index a03e04f134..f8f916213b 100644 --- a/include/spi.h +++ b/include/spi.h @@ -19,6 +19,16 @@ int spi_enable(int enable); int spi_transaction(const uint8_t *txdata, int txlen, uint8_t *rxdata, int rxlen); +/* Similar to spi_transaction(), but hands over to DMA for reading response. + * Must call spi_transaction_flush() after this to make sure the response is + * received. + */ +int spi_transaction_async(const uint8_t *txdata, int txlen, + uint8_t *rxdata, int rxlen); + +/* Wait for async response received */ +int spi_transaction_flush(void); + #ifdef CONFIG_SPI /** * Called when the NSS level changes, signalling the start or end of a SPI |