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/*
* include/linux/mmc/sdio_func.h
*
* Copyright 2007 Pierre Ossman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
#ifndef MMC_SDIO_FUNC_H
#define MMC_SDIO_FUNC_H
struct mmc_card;
/*
* SDIO function devices
*/
struct sdio_func {
struct mmc_card *card; /* the card this device belongs to */
struct device dev; /* the device */
unsigned int num; /* function number */
unsigned int state; /* function state */
#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
};
#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
#define sdio_func_id(f) ((f)->dev.bus_id)
#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
/*
* SDIO function device driver
*/
struct sdio_driver {
char *name;
int (*probe)(struct sdio_func *);
void (*remove)(struct sdio_func *);
struct device_driver drv;
};
extern int sdio_register_driver(struct sdio_driver *);
extern void sdio_unregister_driver(struct sdio_driver *);
/*
* SDIO I/O operations
*/
extern void sdio_claim_host(struct sdio_func *func);
extern void sdio_release_host(struct sdio_func *func);
extern unsigned char sdio_readb(struct sdio_func *func,
unsigned int addr, int *err_ret);
extern void sdio_writeb(struct sdio_func *func, unsigned char b,
unsigned int addr, int *err_ret);
#endif
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