drivers/mmc/core/bus.h

   1 /*
   2  *  linux/drivers/mmc/core/bus.h
   3  *
   4  *  Copyright (C) 2003 Russell King, All Rights Reserved.
   5  *  Copyright 2007 Pierre Ossman
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11 #ifndef _MMC_CORE_BUS_H
  12 #define _MMC_CORE_BUS_H
  13
  14 #include <linux/device.h>
  15
  16 struct mmc_host;
  17 struct mmc_card;
  18
  19 #define MMC_DEV_ATTR(name, fmt, args...)                                        \
  20 static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
  21 {                                                                               \
  22         struct mmc_card *card = mmc_dev_to_card(dev);                           \
  23         return sprintf(buf, fmt, args);                                         \
  24 }                                                                               \
  25 static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
  26
  27 struct mmc_card *mmc_alloc_card(struct mmc_host *host,
  28         struct device_type *type);
  29 int mmc_add_card(struct mmc_card *card);
  30 void mmc_remove_card(struct mmc_card *card);
  31
  32 int mmc_register_bus(void);
  33 void mmc_unregister_bus(void);
  34
  35 struct mmc_driver {
  36         struct device_driver drv;
  37         int (*probe)(struct mmc_card *card);
  38         void (*remove)(struct mmc_card *card);
  39         void (*shutdown)(struct mmc_card *card);
  40 };
  41
  42 int mmc_register_driver(struct mmc_driver *drv);
  43 void mmc_unregister_driver(struct mmc_driver *drv);
  44
  45 #endif