1 #ifndef __LINUX_SPI_MMC_SPI_H 2 #define __LINUX_SPI_MMC_SPI_H 3 4 #include <linux/spi/spi.h> 5 #include <linux/interrupt.h> 6 7 struct device; 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 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 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 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 * mmc_spi_get_pdata(struct spi_device * spi)50mmc_spi_get_pdata(struct spi_device *spi) 51 { 52 return spi->dev.platform_data; 53 } mmc_spi_put_pdata(struct spi_device * spi)54static inline void mmc_spi_put_pdata(struct spi_device *spi) {} 55 #endif /* CONFIG_OF */ 56 57 #endif /* __LINUX_SPI_MMC_SPI_H */ 58