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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-29 18:02:35 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-29 18:02:35 +0000 |
commit | eb8bf2893617f690ab073a5d1b697bd12e5220a0 (patch) | |
tree | 7e66acd74d0437a7f8aa6bcadf882f075391dd38 /nuttx/configs/olimex-strp711/src | |
parent | d2e5f38c3b7eefe042f36392660dbea013ee1705 (diff) | |
download | px4-nuttx-eb8bf2893617f690ab073a5d1b697bd12e5220a0.tar.gz px4-nuttx-eb8bf2893617f690ab073a5d1b697bd12e5220a0.tar.bz2 px4-nuttx-eb8bf2893617f690ab073a5d1b697bd12e5220a0.zip |
Add enum argument to SPI select method
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1666 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/olimex-strp711/src')
-rw-r--r-- | nuttx/configs/olimex-strp711/src/up_spi.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/nuttx/configs/olimex-strp711/src/up_spi.c b/nuttx/configs/olimex-strp711/src/up_spi.c index 43a166b2a..b30b426fd 100644 --- a/nuttx/configs/olimex-strp711/src/up_spi.c +++ b/nuttx/configs/olimex-strp711/src/up_spi.c @@ -265,7 +265,7 @@ static inline void spi_putreg(FAR struct str71x_spidev_s *priv, ubyte offset, /* SPI methods */ -static void spi_select(FAR struct spi_dev_s *dev, boolean selected); +static void spi_select(FAR struct spi_dev_s *dev, enum spidev_e devid, boolean selected); static uint32 spi_setfrequency(FAR struct spi_dev_s *dev, uint32 frequency); static ubyte spi_status(FAR struct spi_dev_s *dev); static ubyte spi_sndbyte(FAR struct spi_dev_s *dev, ubyte ch); @@ -357,17 +357,21 @@ static inline void spi_putreg(FAR struct str71x_spidev_s *priv, ubyte offset, ui * Name: spi_select * * Description: - * Enable/disable the SPI slave select + * Enable/disable the SPI slave select. The implementation of this method + * must include handshaking: If a device is selected, it must hold off + * all other attempts to select the device until the device is deselected. * * Input Parameters: - * selected: TRUE: slave selected, FALSE: slave de-selected + * dev - Device-specific state data + * devid - Identifies the device to select + * selected - TRUE: slave selected, FALSE: slave de-selected * * Returned Value: * None * ****************************************************************************/ -static void spi_select(FAR struct spi_dev_s *dev, boolean selected) +static void spi_select(FAR struct spi_dev_s *dev, enum spidev_e devid, boolean selected) { FAR struct str71x_spidev_s *priv = (FAR struct str71x_spidev_s *)dev; uint16 reg16; |