diff options
| author | Keith Packard <keithp@keithp.com> | 2014-10-07 05:32:00 +0200 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2014-10-24 21:24:53 -0700 |
| commit | 484b530a16a54ca8fde412c3f466bfe7eed978cd (patch) | |
| tree | 0b3d057080ce2d61ab3effa48457e0be0946b83c | |
| parent | c17dff05b70d98e3193e8e68cc9599f3a30270b5 (diff) | |
altos: Mark STM ao_spi_send as taking const pointer
We don't write to this, so let it be const for type checking
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/stm/ao_arch_funcs.h | 2 | ||||
| -rw-r--r-- | src/stm/ao_spi_stm.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h index 7ad3b4b8..42f1a2e5 100644 --- a/src/stm/ao_arch_funcs.h +++ b/src/stm/ao_arch_funcs.h @@ -74,7 +74,7 @@ void ao_spi_put(uint8_t spi_index); void -ao_spi_send(void *block, uint16_t len, uint8_t spi_index); +ao_spi_send(const void *block, uint16_t len, uint8_t spi_index); void ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index); diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c index 885af544..7eaa3924 100644 --- a/src/stm/ao_spi_stm.c +++ b/src/stm/ao_spi_stm.c @@ -42,7 +42,7 @@ static const struct ao_spi_stm_info ao_spi_stm_info[STM_NUM_SPI] = { static uint8_t spi_dev_null; void -ao_spi_send(void *block, uint16_t len, uint8_t spi_index) +ao_spi_send(const void *block, uint16_t len, uint8_t spi_index) { struct stm_spi *stm_spi = ao_spi_stm_info[AO_SPI_INDEX(spi_index)].stm_spi; uint8_t mosi_dma_index = ao_spi_stm_info[AO_SPI_INDEX(spi_index)].mosi_dma_index; @@ -51,7 +51,7 @@ ao_spi_send(void *block, uint16_t len, uint8_t spi_index) /* Set up the transmit DMA to deliver data */ ao_dma_set_transfer(mosi_dma_index, &stm_spi->dr, - block, + (void *) block, len, (0 << STM_DMA_CCR_MEM2MEM) | (STM_DMA_CCR_PL_MEDIUM << STM_DMA_CCR_PL) | |