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 #define MMC_SPI_USE_CD_GPIO (1 << 0) 11 #define MMC_SPI_USE_RO_GPIO (1 << 1) 12 #define MMC_SPI_CD_GPIO_ACTIVE_LOW (1 << 2) 13 #define MMC_SPI_RO_GPIO_ACTIVE_LOW (1 << 3) 14 15 /* Put this in platform_data of a device being used to manage an MMC/SD 16 * card slot. (Modeled after PXA mmc glue; see that for usage examples.) 17 * 18 * REVISIT This is not a spi-specific notion. Any card slot should be 19 * able to handle it. If the MMC core doesn't adopt this kind of notion, 20 * switch the "struct device *" parameters over to "struct spi_device *". 21 */ 22 struct mmc_spi_platform_data { 23 /* driver activation and (optional) card detect irq hookup */ 24 int (*init)(struct device *, 25 irqreturn_t (*)(int, void *), 26 void *); 27 void (*exit)(struct device *, void *); 28 29 /* 30 * Card Detect and Read Only GPIOs. To enable debouncing on the card 31 * detect GPIO, set the cd_debounce to the debounce time in 32 * microseconds. 33 */ 34 unsigned int flags; 35 unsigned int cd_gpio; 36 unsigned int cd_debounce; 37 unsigned int ro_gpio; 38 39 /* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */ 40 unsigned long caps; 41 unsigned long caps2; 42 43 /* how long to debounce card detect, in msecs */ 44 u16 detect_delay; 45 46 /* power management */ 47 u16 powerup_msecs; /* delay of up to 250 msec */ 48 u32 ocr_mask; /* available voltages */ 49 void (*setpower)(struct device *, unsigned int maskval); 50 }; 51 52 #ifdef CONFIG_OF 53 extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi); 54 extern void mmc_spi_put_pdata(struct spi_device *spi); 55 #else 56 static inline struct mmc_spi_platform_data * mmc_spi_get_pdata(struct spi_device * spi)57mmc_spi_get_pdata(struct spi_device *spi) 58 { 59 return spi->dev.platform_data; 60 } mmc_spi_put_pdata(struct spi_device * spi)61static inline void mmc_spi_put_pdata(struct spi_device *spi) {} 62 #endif /* CONFIG_OF */ 63 64 #endif /* __LINUX_SPI_MMC_SPI_H */ 65