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#ifndef __LINUX_SPI_MMC_SPI_H
#define __LINUX_SPI_MMC_SPI_H
#include <linux/spi/spi.h>
#include <linux/interrupt.h>
struct device;
struct mmc_host;
#define MMC_SPI_USE_CD_GPIO (1 << 0)
#define MMC_SPI_USE_RO_GPIO (1 << 1)
#define MMC_SPI_CD_GPIO_ACTIVE_LOW (1 << 2)
#define MMC_SPI_RO_GPIO_ACTIVE_LOW (1 << 3)
/* 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 *);
/*
* Card Detect and Read Only GPIOs. To enable debouncing on the card
* detect GPIO, set the cd_debounce to the debounce time in
* microseconds.
*/
unsigned int flags;
unsigned int cd_gpio;
unsigned int cd_debounce;
unsigned int ro_gpio;
/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
unsigned long caps;
unsigned long caps2;
/* 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 */
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