1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * linux/drivers/mmc/core/bus.h 4 * 5 * Copyright (C) 2003 Russell King, All Rights Reserved. 6 * Copyright 2007 Pierre Ossman 7 */ 8#ifndef _MMC_CORE_BUS_H 9#define _MMC_CORE_BUS_H 10 11#include <linux/device.h> 12#include <linux/sysfs.h> 13 14struct mmc_host; 15struct mmc_card; 16 17#define MMC_DEV_ATTR(name, fmt, args...) \ 18static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ 19{ \ 20 struct mmc_card *card = mmc_dev_to_card(dev); \ 21 return sysfs_emit(buf, fmt, args); \ 22} \ 23static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL) 24 25struct mmc_card *mmc_alloc_card(struct mmc_host *host, 26 struct device_type *type); 27int mmc_add_card(struct mmc_card *card); 28void mmc_remove_card(struct mmc_card *card); 29 30int mmc_register_bus(void); 31void mmc_unregister_bus(void); 32 33struct mmc_driver { 34 struct device_driver drv; 35 int (*probe)(struct mmc_card *card); 36 void (*remove)(struct mmc_card *card); 37 void (*shutdown)(struct mmc_card *card); 38}; 39 40int mmc_register_driver(struct mmc_driver *drv); 41void mmc_unregister_driver(struct mmc_driver *drv); 42 43#endif 44