include/linux/spi/mmc_spi.h

   1 #ifndef __LINUX_SPI_MMC_SPI_H
   2 #define __LINUX_SPI_MMC_SPI_H
   3
   4 struct device;
   5 struct mmc_host;
   6
   7 /* Put this in platform_data of a device being used to manage an MMC/SD
   8  * card slot.  (Modeled after PXA mmc glue; see that for usage examples.)
   9  *
  10  * REVISIT This is not a spi-specific notion.  Any card slot should be
  11  * able to handle it.  If the MMC core doesn't adopt this kind of notion,
  12  * switch the "struct device *" parameters over to "struct spi_device *".
  13  */
  14 struct mmc_spi_platform_data {
  15         /* driver activation and (optional) card detect irq hookup */
  16         int (*init)(struct device *,
  17                 irqreturn_t (*)(int, void *),
  18                 void *);
  19         void (*exit)(struct device *, void *);
  20
  21         /* sense switch on sd cards */
  22         int (*get_ro)(struct device *);
  23
  24         /* how long to debounce card detect, in msecs */
  25         u16 detect_delay;
  26
  27         /* power management */
  28         u16 powerup_msecs;              /* delay of up to 250 msec */
  29         u32 ocr_mask;                   /* available voltages */
  30         void (*setpower)(struct device *, unsigned int maskval);
  31 };
  32
  33 #endif /* __LINUX_SPI_MMC_SPI_H */