52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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//! \file spi.c
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//! \author tkl
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//! \date Feb 11, 2012
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//! \brief Source file of the architecture independent spi driver.
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#include <stddef.h>
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#include "spi.h"
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//-----------------------------------------------------------------------------
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int spi_open(const struct spi *device) {
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if(device == NULL) {
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return -1;
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}
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spi_fp_open_t open = device->fp->open;
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return open(device->arch_dep_device);
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}
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//-----------------------------------------------------------------------------
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int spi_close(const struct spi *device) {
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if(device == NULL) {
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return -1;
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}
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spi_fp_close_t close = device->fp->close;
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return close(device->arch_dep_device);
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}
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//-----------------------------------------------------------------------------
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void spi_assert_cs(const struct spi * device) {
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if(device == NULL) {
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return;
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}
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spi_fp_assert_cs_t assert_cs = device->fp->assert_cs;
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assert_cs(device->arch_dep_device);
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}
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//-----------------------------------------------------------------------------
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void spi_deassert_cs(const struct spi * device) {
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if(device == NULL) {
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return;
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}
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spi_fp_deassert_cs_t deassert_cs = device->fp->deassert_cs;
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deassert_cs(device->arch_dep_device);
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}
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//-----------------------------------------------------------------------------
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char spi_rxtx_byte(const struct spi * device, char byte) {
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if(device == NULL) {
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return 0;
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}
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spi_fp_rxtx_byte_t rxtx_byte = device->fp->rxtx_byte;
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return rxtx_byte(device->arch_dep_device, byte);
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}
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