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| author | Gregory Nutt <gnutt@nuttx.org> | 2013-06-15 10:56:08 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2013-06-15 10:56:08 -0600 |
| commit | 123f7dc4f8825a277f2e416558bbb49fa19cc2b7 (patch) | |
| tree | e54dd6223c6040d670644783235ae9ee6d96900f /nuttx/configs/sam4l-xplained/src/sam4l-xplained.h | |
| parent | 9c82995c7a5847034355250dd9438649151ca58c (diff) | |
| download | px4-nuttx-123f7dc4f8825a277f2e416558bbb49fa19cc2b7.tar.gz px4-nuttx-123f7dc4f8825a277f2e416558bbb49fa19cc2b7.tar.bz2 px4-nuttx-123f7dc4f8825a277f2e416558bbb49fa19cc2b7.zip | |
Add support for the SAM4L Xplained Pro I/O1 module
Diffstat (limited to 'nuttx/configs/sam4l-xplained/src/sam4l-xplained.h')
| -rw-r--r-- | nuttx/configs/sam4l-xplained/src/sam4l-xplained.h | 63 |
1 files changed, 60 insertions, 3 deletions
diff --git a/nuttx/configs/sam4l-xplained/src/sam4l-xplained.h b/nuttx/configs/sam4l-xplained/src/sam4l-xplained.h index ba6978a82..9e7a0f4ac 100644 --- a/nuttx/configs/sam4l-xplained/src/sam4l-xplained.h +++ b/nuttx/configs/sam4l-xplained/src/sam4l-xplained.h @@ -99,10 +99,54 @@ * PC24 SW0 */ -#define GPIO_SW0 (GPIO_INPUT | GPIO_PULL_UP | GPIO_GLITCH_FILTER | \ +#define GPIO_SW0 (GPIO_INTERRUPT | GPIO_PULL_UP | GPIO_GLITCH_FILTER | \ GPIO_PORTC | GPIO_PIN24) #define IRQ_SW0 SAM_IRQ_PC24 +/* I/O1 + * + * Support for the microSD card slot on the I/O1 module. The I/O1 requires + * SPI support and two GPIOs. These two GPIOs will vary if the + * + * + * PIN EXT1 EXT2 Description + * --- -------------- --------------- ------------------------------------- + * 15 PC03 SPI/NPCS0 PB11 SPI/NPCS2 Active low chip select OUTPUT, pulled + * high on board. + * 10 PB13 SPI/NPCS1 10 PC09 GPIO Active low card detect INPUT, must + * use internal pull-up. + */ + +#ifdef CONFIG_SAM4L_XPLAINED_IOMODULE + +# ifndef CONFIG_SAM34_SPI +# error CONFIG_SAM34_SPI is required to use the I/O1 module +# endif + +# if defined(CONFIG_SAM4L_XPLAINED_IOMODULE_EXT1) + +# define GPIO_SD_CD (GPIO_INTERRUPT | GPIO_INT_CHANGE | GPIO_PULL_UP | \ + GPIO_GLITCH_FILTER | GPIO_PORTB | GPIO_PIN13) +# define IRQ_SD_CD SAM_IRQ_PB13 + +# define GPIO_SD_CS (GPIO_OUTPUT | GPIO_PULL_NONE | GPIO_OUTPUT_SET | \ + GPIO_PORTC | GPIO_PIN3) +# define SD_CSNO 0 + +# elif defined(CONFIG_SAM4L_XPLAINED_IOMODULE_EXT2) +# define GPIO_CD (GPIO_INTERRUPT | GPIO_INT_CHANGE | GPIO_PULL_UP | \ + GPIO_GLITCH_FILTER | GPIO_PORTC | GPIO_PIN9) +# define IRQ_CD SAM_IRQ_PC9 + +# define GPIO_SD_CS (GPIO_OUTPUT | GPIO_PULL_NONE | GPIO_OUTPUT_SET | \ + GPIO_PORTB | GPIO_PIN11) +# define SD_CSNO 2 + +# else +# error Which connector is the I/O1 module installed in? +# endif +#endif + /************************************************************************************ * Public Types ************************************************************************************/ @@ -127,9 +171,22 @@ void weak_function sam_spiinitialize(void); -/**************************************************************************** +/************************************************************************************ + * Name: sam_sdinitialize + * + * Description: + * Initialize the SPI-based SD card. Requires CONFIG_SAM4L_XPLAINED_IOMODULE=y, + * CONFIG_DISABLE_MOUNTPOINT=n, CONFIG_MMCSD=y, and CONFIG_SAM34_SPI=y + * + ************************************************************************************/ + +#ifdef CONFIG_SAM4L_XPLAINED_IOMODULE +int sam_sdinitialize(int minor); +#endif + +/************************************************************************************ * Name: up_ledinit - ****************************************************************************/ + ************************************************************************************/ #ifdef CONFIG_ARCH_LEDS void up_ledinit(void); |