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K64F SPI driver: Add explicit pinmap support

pull/11892/head
Przemyslaw Stekiel 2019-08-20 13:12:03 +02:00
parent 582d1b7a37
commit 31bff30b64
1 changed files with 30 additions and 11 deletions
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41
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/spi_api.c
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@ -53,6 +53,29 @@ SPIName spi_get_peripheral_name(PinName mosi, PinName miso, PinName sclk)
return spi_per;
}
void spi_init_direct(spi_t *obj, const spi_pinmap_t *pinmap)
{
obj->spi.instance = pinmap->peripheral;
MBED_ASSERT((int)obj->spi.instance != NC);
// pin out the spi pins
pin_function(pinmap->mosi_pin, pinmap->mosi_function);
pin_mode(pinmap->mosi_pin, PullNone);
pin_function(pinmap->miso_pin, pinmap->miso_function);
pin_mode(pinmap->miso_pin, PullNone);
pin_function(pinmap->sclk_pin, pinmap->sclk_function);
pin_mode(pinmap->sclk_pin, PullNone);
if (pinmap->ssel_pin != NC) {
pin_function(pinmap->ssel_pin, pinmap->ssel_function);
pin_mode(pinmap->ssel_pin, PullNone);
}
/* Set the transfer status to idle */
obj->spi.status = kDSPI_Idle;
obj->spi.spiDmaMasterRx.dmaUsageState = DMA_USAGE_OPPORTUNISTIC;
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
{
// determine the SPI to use
@ -63,21 +86,17 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
uint32_t spi_data = pinmap_merge(spi_mosi, spi_miso);
uint32_t spi_cntl = pinmap_merge(spi_sclk, spi_ssel);
obj->spi.instance = pinmap_merge(spi_data, spi_cntl);
MBED_ASSERT((int)obj->spi.instance != NC);
int peripheral = (int)pinmap_merge(spi_data, spi_cntl);
// pin out the spi pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
if (ssel != NC) {
pinmap_pinout(ssel, PinMap_SPI_SSEL);
}
int mosi_function = (int)pinmap_find_function(mosi, PinMap_SPI_MOSI);
int miso_function = (int)pinmap_find_function(miso, PinMap_SPI_MISO);
int sclk_function = (int)pinmap_find_function(sclk, PinMap_SPI_SCLK);
int ssel_function = (int)pinmap_find_function(ssel, PinMap_SPI_SSEL);
/* Set the transfer status to idle */
obj->spi.status = kDSPI_Idle;
const spi_pinmap_t explicit_spi_pinmap = {peripheral, mosi, mosi_function, miso, miso_function, sclk, sclk_function, ssel, ssel_function};
obj->spi.spiDmaMasterRx.dmaUsageState = DMA_USAGE_OPPORTUNISTIC;
spi_init_direct(obj, &explicit_spi_pinmap);
}
void spi_free(spi_t *obj)