arch/arm/plat-omap/include/mach/mmc.h

   1 /*
   2  * MMC definitions for OMAP2
   3  *
   4  * Copyright (C) 2006 Nokia Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __OMAP2_MMC_H
  12 #define __OMAP2_MMC_H
  13
  14 #include <linux/types.h>
  15 #include <linux/device.h>
  16 #include <linux/mmc/host.h>
  17
  18 #include <mach/board.h>
  19
  20 #define OMAP_MMC_MAX_SLOTS      2
  21
  22 struct omap_mmc_platform_data {
  23         struct omap_mmc_conf    conf;
  24
  25         /* number of slots on board */
  26         unsigned nr_slots:2;
  27
  28         /* set if your board has components or wiring that limits the
  29          * maximum frequency on the MMC bus */
  30         unsigned int max_freq;
  31
  32         /* switch the bus to a new slot */
  33         int (* switch_slot)(struct device *dev, int slot);
  34         /* initialize board-specific MMC functionality, can be NULL if
  35          * not supported */
  36         int (* init)(struct device *dev);
  37         void (* cleanup)(struct device *dev);
  38         void (* shutdown)(struct device *dev);
  39
  40         /* To handle board related suspend/resume functionality for MMC */
  41         int (*suspend)(struct device *dev, int slot);
  42         int (*resume)(struct device *dev, int slot);
  43
  44         struct omap_mmc_slot_data {
  45                 int (* set_bus_mode)(struct device *dev, int slot, int bus_mode);
  46                 int (* set_power)(struct device *dev, int slot, int power_on, int vdd);
  47                 int (* get_ro)(struct device *dev, int slot);
  48
  49                 /* return MMC cover switch state, can be NULL if not supported.
  50                  *
  51                  * possible return values:
  52                  *   0 - open
  53                  *   1 - closed
  54                  */
  55                 int (* get_cover_state)(struct device *dev, int slot);
  56
  57                 const char *name;
  58                 u32 ocr_mask;
  59
  60                 /* Card detection IRQs */
  61                 int card_detect_irq;
  62                 int (* card_detect)(int irq);
  63
  64                 unsigned int ban_openended:1;
  65
  66         } slots[OMAP_MMC_MAX_SLOTS];
  67 };
  68
  69 extern void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info);
  70
  71 /* called from board-specific card detection service routine */
  72 extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed);
  73
  74 #endif