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spi: completed implementation.

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* Added more functions for transaction settings.

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Thomas Ingleby
2014-05-20 16:55:27 +01:00
committed by Brendan Le Foll
parent 66550f9487
commit a8d7473a5b
2 changed files with 63 additions and 9 deletions
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25
api/spi.h
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@@ -44,12 +44,13 @@ typedef struct _spi* maa_spi_context;
/** Initialise SPI_context, uses board mapping. Sets the muxes
*
* @param bus to use, as listed in platform definition. Normally 0
* @return maa_spi_context The returned initialised SPI context
*/
maa_spi_context maa_spi_init();
maa_spi_context maa_spi_init(int bus);
/** Set the SPI device mode. see spidev
*
* 0-3.
* @param spi the spi device context
* @param mode the mode. See Linux spidev
*
@@ -85,6 +86,26 @@ uint8_t maa_spi_write(maa_spi_context dev, uint8_t data);
*/
uint8_t* maa_spi_write_buf(maa_spi_context dev, uint8_t* data, int length);
/**
*
* @param dev spi context
* @param lsb. Use least significant bit transmission. 0 for msbi
*
* @return maa result of operation
*/
maa_result_t
maa_spi_lsbmode(maa_spi_context dev, maa_boolean_t lsb)
/** Set bits per mode on transaction
* Defaults at 8.
*
* @param dev spi context
* @param bits bits per word
*
* @return Result of operation
*/
maa_result_t
maa_spi_bit_per_word(maa_spi_context dev, unsigned int bits)
/** De-inits an maa_spi_context device
*