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mmc: basic SDIO device model

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Add the sdio bus type and basic device handling.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman
2007-05-26 13:48:18 +02:00
parent b2bcc798bb
commit e29a7d73f4
7 changed files with 279 additions and 15 deletions
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35
include/linux/mmc/sdio_func.h Normal file
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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)
#endif