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STM32: SPI: Use LL in spi_slave_read 

this is more a cosmetic change, but since LL was introduced, we can now
use it here as well.
pull/5083/head
mapellil 2017-05-16 11:37:46 +02:00 committed by adbridge
parent 64bd60d449
commit fe3a99d3f7
1 changed files with 3 additions and 7 deletions
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10
targets/TARGET_STM/stm_spi_api.c
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@ -438,17 +438,13 @@ int spi_slave_receive(spi_t *obj)
int spi_slave_read(spi_t *obj) int spi_slave_read(spi_t *obj)
{ {
SPI_TypeDef *spi = SPI_INST(obj);
struct spi_s *spiobj = SPI_S(obj); struct spi_s *spiobj = SPI_S(obj);
SPI_HandleTypeDef *handle = &(spiobj->handle); SPI_HandleTypeDef *handle = &(spiobj->handle);
while (!ssp_readable(obj)); while (!ssp_readable(obj));
if (handle->Init.DataSize == SPI_DATASIZE_8BIT) { if (handle->Init.DataSize == SPI_DATASIZE_16BIT) {
// Force 8-bit access to the data register return LL_SPI_ReceiveData16(SPI_INST(obj));
uint8_t *p_spi_dr = 0;
p_spi_dr = (uint8_t *) & (spi->DR);
return (int)(*p_spi_dr);
} else { } else {
return (int)spi->DR; return LL_SPI_ReceiveData8(SPI_INST(obj));
} }
} }