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 46