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spi: added spi mode to mraa

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Signed-off-by: Kiveisha Yevgeniy <yevgeniy.kiveisha@intel.com>
This commit is contained in:
Kiveisha Yevgeniy
2014-08-06 11:40:51 +00:00
parent 551e553894
commit 998095d802
3 changed files with 38 additions and 4 deletions
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28
src/spi/spi.c
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@@ -78,9 +78,33 @@ mraa_spi_init(int bus)
}
mraa_result_t
mraa_spi_mode(mraa_spi_context dev, unsigned short mode)
mraa_spi_mode(mraa_spi_context dev, mraa_spi_mode_t mode)
{
dev->mode = mode;
uint8_t spi_mode = 0;
switch (mode) {
case MODE0:
spi_mode = SPI_MODE_0;
break;
case MODE1:
spi_mode = SPI_MODE_1;
break;
case MODE2:
spi_mode = SPI_MODE_2;
break;
case MODE3:
spi_mode = SPI_MODE_3;
break;
default:
spi_mode = SPI_MODE_0;
break;
}
if (ioctl (dev->devfd, SPI_IOC_WR_MODE, &spi_mode) < 0) {
fprintf(stderr, "Failed to set spi mode\n");
return MRAA_ERROR_INVALID_RESOURCE;
}
dev->mode = spi_mode;
return MRAA_SUCCESS;
}