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intel_galileo_rev_d.c: added spi_lsbmode_replace to return correct status.

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Galileo Gen1 doesn't support LSB_FIRST mode, so let's
return MRAA_ERROR_FEATURE_NOT_SUPPORTED instead of <...>_INVALID_RESOURCE.

Closes #178.

Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Alex Tereschenko
2015-06-14 16:45:31 +02:00
committed by Brendan Le Foll
parent 5adc951f57
commit c9cfcb2cae
1 changed files with 26 additions and 0 deletions
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26
src/x86/intel_galileo_rev_d.c
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@@ -25,6 +25,8 @@
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/spi/spidev.h>
#include "common.h"
#include "x86/intel_galileo_rev_d.h"
@@ -115,6 +117,29 @@ mraa_intel_galileo_g1_mmap_setup(mraa_gpio_context dev, mraa_boolean_t en)
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_galileo_g1_spi_lsbmode_replace(mraa_spi_context dev, mraa_boolean_t lsb)
{
uint8_t lsb_mode = (uint8_t) lsb;
// Galileo Gen1 doesn't support LSB_FIRST, we need to react appropriately
if (!lsb) {
if (ioctl(dev->devfd, SPI_IOC_WR_LSB_FIRST, &lsb_mode) < 0) {
syslog(LOG_ERR, "spi: Failed to set bit order");
return MRAA_ERROR_INVALID_RESOURCE;
}
if (ioctl(dev->devfd, SPI_IOC_RD_LSB_FIRST, &lsb_mode) < 0) {
syslog(LOG_ERR, "spi: Failed to set bit order");
return MRAA_ERROR_INVALID_RESOURCE;
}
} else {
return MRAA_ERROR_FEATURE_NOT_SUPPORTED;
}
dev->lsb = lsb;
return MRAA_SUCCESS;
}
mraa_board_t*
mraa_intel_galileo_rev_d()
{
@@ -136,6 +161,7 @@ mraa_intel_galileo_rev_d()
b->pwm_min_period = 1;
advance_func->gpio_mmap_setup = &mraa_intel_galileo_g1_mmap_setup;
advance_func->spi_lsbmode_replace = &mraa_intel_galileo_g1_spi_lsbmode_replace;
b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t) * MRAA_INTEL_GALILEO_REV_D_PINCOUNT);
if (b->pins == NULL) {