b1538bcf75
This way those tuples that the core cares about are consumed by the core code, and tuples that only function drivers might make sense of are available to drivers. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
85 lines
2 KiB
C
85 lines
2 KiB
C
/*
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* include/linux/mmc/sdio_func.h
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*
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* Copyright 2007 Pierre Ossman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#ifndef MMC_SDIO_FUNC_H
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#define MMC_SDIO_FUNC_H
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struct mmc_card;
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/*
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* SDIO function CIS tuple (unknown to the core)
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*/
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struct sdio_func_tuple {
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struct sdio_func_tuple *next;
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unsigned char code;
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unsigned char size;
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unsigned char data[0];
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};
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/*
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* SDIO function devices
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*/
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struct sdio_func {
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struct mmc_card *card; /* the card this device belongs to */
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struct device dev; /* the device */
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unsigned int num; /* function number */
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unsigned char class; /* standard interface class */
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unsigned short vendor; /* vendor id */
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unsigned short device; /* device id */
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unsigned int state; /* function state */
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#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
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struct sdio_func_tuple *tuples;
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};
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#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
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#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
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#define sdio_func_id(f) ((f)->dev.bus_id)
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#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
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#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
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/*
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* SDIO function device driver
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*/
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struct sdio_driver {
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char *name;
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int (*probe)(struct sdio_func *);
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void (*remove)(struct sdio_func *);
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struct device_driver drv;
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};
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extern int sdio_register_driver(struct sdio_driver *);
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extern void sdio_unregister_driver(struct sdio_driver *);
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/*
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* SDIO I/O operations
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*/
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extern void sdio_claim_host(struct sdio_func *func);
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extern void sdio_release_host(struct sdio_func *func);
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extern int sdio_enable_func(struct sdio_func *func);
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extern int sdio_disable_func(struct sdio_func *func);
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extern unsigned char sdio_readb(struct sdio_func *func,
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unsigned int addr, int *err_ret);
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extern void sdio_writeb(struct sdio_func *func, unsigned char b,
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unsigned int addr, int *err_ret);
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#endif
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