include/linux/spi/mmc_spi.h

   1 #ifndef __LINUX_SPI_MMC_SPI_H
   2 #define __LINUX_SPI_MMC_SPI_H
   3
   4 #include <linux/interrupt.h>
   5
   6 struct device;
   7 struct mmc_host;
   8
   9 /* Put this in platform_data of a device being used to manage an MMC/SD
  10  * card slot.  (Modeled after PXA mmc glue; see that for usage examples.)
  11  *
  12  * REVISIT This is not a spi-specific notion.  Any card slot should be
  13  * able to handle it.  If the MMC core doesn't adopt this kind of notion,
  14  * switch the "struct device *" parameters over to "struct spi_device *".
  15  */
  16 struct mmc_spi_platform_data {
  17         /* driver activation and (optional) card detect irq hookup */
  18         int (*init)(struct device *,
  19                 irqreturn_t (*)(int, void *),
  20                 void *);
  21         void (*exit)(struct device *, void *);
  22
  23         /* sense switch on sd cards */
  24         int (*get_ro)(struct device *);
  25
  26         /* how long to debounce card detect, in msecs */
  27         u16 detect_delay;
  28
  29         /* power management */
  30         u16 powerup_msecs;              /* delay of up to 250 msec */
  31         u32 ocr_mask;                   /* available voltages */
  32         void (*setpower)(struct device *, unsigned int maskval);
  33 };
  34
  35 #endif /* __LINUX_SPI_MMC_SPI_H */