diff options
Diffstat (limited to 'drivers/chibios/spi_master.c')
| -rw-r--r-- | drivers/chibios/spi_master.c | 70 |
1 files changed, 62 insertions, 8 deletions
diff --git a/drivers/chibios/spi_master.c b/drivers/chibios/spi_master.c index 4852a6eba4..28ddcbb2ba 100644 --- a/drivers/chibios/spi_master.c +++ b/drivers/chibios/spi_master.c @@ -18,8 +18,13 @@ #include "timer.h" -static pin_t currentSlavePin = NO_PIN; -static SPIConfig spiConfig = {false, NULL, 0, 0, 0, 0}; +static pin_t currentSlavePin = NO_PIN; + +#if defined(K20x) || defined(KL2x) +static SPIConfig spiConfig = {NULL, 0, 0, 0}; +#else +static SPIConfig spiConfig = {false, NULL, 0, 0, 0, 0}; +#endif __attribute__((weak)) void spi_init(void) { static bool is_initialised = false; @@ -27,15 +32,15 @@ __attribute__((weak)) void spi_init(void) { is_initialised = true; // Try releasing special pins for a short time - palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_INPUT); - palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_INPUT); - palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_INPUT); + setPinInput(SPI_SCK_PIN); + setPinInput(SPI_MOSI_PIN); + setPinInput(SPI_MISO_PIN); chThdSleepMilliseconds(10); #if defined(USE_GPIOV1) - palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); - palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); - palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); + palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), SPI_SCK_PAL_MODE); + palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), SPI_MOSI_PAL_MODE); + palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), SPI_MISO_PAL_MODE); #else palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_ALTERNATE(SPI_SCK_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_ALTERNATE(SPI_MOSI_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); @@ -58,6 +63,54 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) { return false; } +#if defined(K20x) || defined(KL2x) + spiConfig.tar0 = SPIx_CTARn_FMSZ(7) | SPIx_CTARn_ASC(1); + + if (lsbFirst) { + spiConfig.tar0 |= SPIx_CTARn_LSBFE; + } + + switch (mode) { + case 0: + break; + case 1: + spiConfig.tar0 |= SPIx_CTARn_CPHA; + break; + case 2: + spiConfig.tar0 |= SPIx_CTARn_CPOL; + break; + case 3: + spiConfig.tar0 |= SPIx_CTARn_CPHA | SPIx_CTARn_CPOL; + break; + } + + switch (roundedDivisor) { + case 2: + spiConfig.tar0 |= SPIx_CTARn_BR(0); + break; + case 4: + spiConfig.tar0 |= SPIx_CTARn_BR(1); + break; + case 8: + spiConfig.tar0 |= SPIx_CTARn_BR(3); + break; + case 16: + spiConfig.tar0 |= SPIx_CTARn_BR(4); + break; + case 32: + spiConfig.tar0 |= SPIx_CTARn_BR(5); + break; + case 64: + spiConfig.tar0 |= SPIx_CTARn_BR(6); + break; + case 128: + spiConfig.tar0 |= SPIx_CTARn_BR(7); + break; + case 256: + spiConfig.tar0 |= SPIx_CTARn_BR(8); + break; + } +#else spiConfig.cr1 = 0; if (lsbFirst) { @@ -103,6 +156,7 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) { spiConfig.cr1 |= SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0; break; } +#endif currentSlavePin = slavePin; spiConfig.ssport = PAL_PORT(slavePin); |