LXR linux/arch/arm/plat-mxc/include/mach/mmc.h

   1#ifndef ASMARM_ARCH_MMC_H
   2#define ASMARM_ARCH_MMC_H
   3
   4#include <linux/mmc/host.h>
   5
   6struct device;
   7
   8/* board specific SDHC data, optional.
   9 * If not present, a writable card with 3,3V is assumed.
  10 */
  11struct imxmmc_platform_data {
  12        /* Return values for the get_ro callback should be:
  13         *   0 for a read/write card
  14         *   1 for a read-only card
  15         *   -ENOSYS when not supported (equal to NULL callback)
  16         *   or a negative errno value when something bad happened
  17         */
  18        int (*get_ro)(struct device *);
  19
  20        /* board specific hook to (de)initialize the SD slot.
  21         * The board code can call 'handler' on a card detection
  22         * change giving data as argument.
  23         */
  24        int (*init)(struct device *dev, irq_handler_t handler, void *data);
  25        void (*exit)(struct device *dev, void *data);
  26
  27        /* available voltages. If not given, assume
  28         * MMC_VDD_32_33 | MMC_VDD_33_34
  29         */
  30        unsigned int ocr_avail;
  31
  32        /* adjust slot voltage */
  33        void (*setpower)(struct device *, unsigned int vdd);
  34};
  35
  36#endif
  37