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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-29 18:02:35 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-29 18:02:35 +0000 |
| commit | eb8bf2893617f690ab073a5d1b697bd12e5220a0 (patch) | |
| tree | 7e66acd74d0437a7f8aa6bcadf882f075391dd38 /nuttx/configs/mcu123-lpc214x/src/up_spi.c | |
| 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/mcu123-lpc214x/src/up_spi.c')
| -rw-r--r-- | nuttx/configs/mcu123-lpc214x/src/up_spi.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/nuttx/configs/mcu123-lpc214x/src/up_spi.c b/nuttx/configs/mcu123-lpc214x/src/up_spi.c index 0997aa01b..f517939c4 100644 --- a/nuttx/configs/mcu123-lpc214x/src/up_spi.c +++ b/nuttx/configs/mcu123-lpc214x/src/up_spi.c @@ -1,7 +1,7 @@ /**************************************************************************** * config/mcu123-lpc214x/src/up_spi.c * - * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * This logic emulates the Prolific PL2303 serial/USB converter @@ -88,7 +88,7 @@ * Private Function Prototypes ****************************************************************************/ -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); @@ -123,17 +123,21 @@ static struct spi_dev_s g_spidev = { &g_spiops }; * 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 deselecte. * * 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) { uint32 bit = 1 << 20; |