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cpu: stm32f3: use periph_common SPI functions

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This commit is contained in:
Kaspar Schleiser 2015-08-13 15:20:39 +02:00
parent 6c185655c8
commit fa00154f2a
3 changed files with 12 additions and 56 deletions
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3
cpu/stm32f3/Makefile.include
View File

@ -3,4 +3,7 @@ export CPU_ARCH = cortex-m4f
# use hwtimer compatibility module
USEMODULE += hwtimer_compat
# includ common periph module
USEMODULE += periph_common
include $(RIOTCPU)/Makefile.include.cortexm_common

9
cpu/stm32f3/include/periph_cpu.h
View File

@ -79,6 +79,15 @@ typedef enum {
GPIO_AF15 /**< use alternate function 14 */
} gpio_af_t;
/**
* @brief declare needed generic SPI functions
* @{
*/
#define PERIPH_SPI_NEEDS_TRANSFER_BYTES
#define PERIPH_SPI_NEEDS_TRANSFER_REG
#define PERIPH_SPI_NEEDS_TRANSFER_REGS
/** @} */
#ifdef __cplusplus
}
#endif

56
cpu/stm32f3/periph/spi.c
View File

@ -334,62 +334,6 @@ int spi_transfer_byte(spi_t dev, char out, char *in)
return 1;
}
int spi_transfer_bytes(spi_t dev, char *out, char *in, unsigned int length)
{
int i, trans_ret, trans_bytes = 0;
char in_temp;
for (i = 0; i < length; i++) {
if (out != NULL) {
trans_ret = spi_transfer_byte(dev, out[i], &in_temp);
}
else {
trans_ret = spi_transfer_byte(dev, 0, &in_temp);
}
if (trans_ret < 0) {
return -1;
}
if (in != NULL) {
in[i] = in_temp;
}
trans_bytes++;
}
return trans_bytes++;
}
int spi_transfer_reg(spi_t dev, uint8_t reg, char out, char *in)
{
int trans_ret;
trans_ret = spi_transfer_byte(dev, reg, in);
if (trans_ret < 0) {
return -1;
}
trans_ret = spi_transfer_byte(dev, out, in);
if (trans_ret < 0) {
return -1;
}
return 1;
}
int spi_transfer_regs(spi_t dev, uint8_t reg, char *out, char *in, unsigned int length)
{
int trans_ret;
trans_ret = spi_transfer_byte(dev, reg, in);
if (trans_ret < 0) {
return -1;
}
trans_ret = spi_transfer_bytes(dev, out, in, length);
if (trans_ret < 0) {
return -1;
}
return trans_ret;
}
void spi_transmission_begin(spi_t dev, char reset_val)
{
if (dev < SPI_NUMOF) {