[deliverable/linux.git] / include / linux / spi / mmc_spi.h

#ifndef __LINUX_SPI_MMC_SPI_H
#define __LINUX_SPI_MMC_SPI_H

#include <linux/device.h>
#include <linux/spi/spi.h>
#include <linux/interrupt.h>

struct mmc_host;

/* Put this in platform_data of a device being used to manage an MMC/SD
 * card slot.  (Modeled after PXA mmc glue; see that for usage examples.)
 *
 * REVISIT This is not a spi-specific notion.  Any card slot should be
 * able to handle it.  If the MMC core doesn't adopt this kind of notion,
 * switch the "struct device *" parameters over to "struct spi_device *".
 */
struct mmc_spi_platform_data {
	/* driver activation and (optional) card detect irq hookup */
	int (*init)(struct device *,
		irqreturn_t (*)(int, void *),
		void *);
	void (*exit)(struct device *, void *);

	/* sense switch on sd cards */
	int (*get_ro)(struct device *);

	/*
	 * If board does not use CD interrupts, driver can optimize polling
	 * using this function.
	 */
	int (*get_cd)(struct device *);

	/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
	unsigned long caps;

	/* how long to debounce card detect, in msecs */
	u16 detect_delay;

	/* power management */
	u16 powerup_msecs;		/* delay of up to 250 msec */
	u32 ocr_mask;			/* available voltages */
	void (*setpower)(struct device *, unsigned int maskval);
};

#ifdef CONFIG_OF
extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
extern void mmc_spi_put_pdata(struct spi_device *spi);
#else
static inline struct mmc_spi_platform_data *
mmc_spi_get_pdata(struct spi_device *spi)
{
	return spi->dev.platform_data;
}
static inline void mmc_spi_put_pdata(struct spi_device *spi) {}
#endif /* CONFIG_OF */

#endif /* __LINUX_SPI_MMC_SPI_H */
Commit	Line	Data
15a0580c DB	1	#ifndef __LINUX_SPI_MMC_SPI_H
	2	#define __LINUX_SPI_MMC_SPI_H
	3
9c43df57 AV	4	#include <linux/device.h>
9c43df57 AV	5	#include <linux/spi/spi.h>
63e14626 AV	6	#include <linux/interrupt.h>
63e14626 AV	7
15a0580c DB	8	struct mmc_host;
	9
	10	/* Put this in platform_data of a device being used to manage an MMC/SD
	11	* card slot. (Modeled after PXA mmc glue; see that for usage examples.)
	12	*
	13	* REVISIT This is not a spi-specific notion. Any card slot should be
	14	* able to handle it. If the MMC core doesn't adopt this kind of notion,
	15	* switch the "struct device " parameters over to "struct spi_device ".
	16	*/
	17	struct mmc_spi_platform_data {
	18	/* driver activation and (optional) card detect irq hookup */
	19	int (init)(struct device ,
	20	irqreturn_t ()(int, void ),
	21	void *);
	22	void (exit)(struct device , void *);
	23
	24	/* sense switch on sd cards */
	25	int (get_ro)(struct device );
	26
619ef4b4 AV	27	/*
	28	* If board does not use CD interrupts, driver can optimize polling
	29	* using this function.
	30	*/
	31	int (get_cd)(struct device );
	32
	33	/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
	34	unsigned long caps;
	35
15a0580c DB	36	/* how long to debounce card detect, in msecs */
	37	u16 detect_delay;
	38
	39	/* power management */
	40	u16 powerup_msecs; /* delay of up to 250 msec */
	41	u32 ocr_mask; /* available voltages */
	42	void (setpower)(struct device , unsigned int maskval);
	43	};
	44
9c43df57 AV	45	#ifdef CONFIG_OF
	46	extern struct mmc_spi_platform_data mmc_spi_get_pdata(struct spi_device spi);
	47	extern void mmc_spi_put_pdata(struct spi_device *spi);
	48	#else
	49	static inline struct mmc_spi_platform_data *
	50	mmc_spi_get_pdata(struct spi_device *spi)
	51	{
	52	return spi->dev.platform_data;
	53	}
	54	static inline void mmc_spi_put_pdata(struct spi_device *spi) {}
	55	#endif /* CONFIG_OF */
	56
15a0580c	57	#endif /* __LINUX_SPI_MMC_SPI_H */