2 * include/linux/mmc/sdio_func.h
4 * Copyright 2007 Pierre Ossman
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
12 #ifndef MMC_SDIO_FUNC_H
13 #define MMC_SDIO_FUNC_H
15 #include <linux/device.h>
16 #include <linux/mod_devicetable.h>
21 typedef void (sdio_irq_handler_t)(struct sdio_func *);
24 * SDIO function CIS tuple (unknown to the core)
26 struct sdio_func_tuple {
27 struct sdio_func_tuple *next;
30 unsigned char data[0];
34 * SDIO function devices
37 struct mmc_card *card; /* the card this device belongs to */
38 struct device dev; /* the device */
39 sdio_irq_handler_t *irq_handler; /* IRQ callback */
40 unsigned int num; /* function number */
42 unsigned char class; /* standard interface class */
43 unsigned short vendor; /* vendor id */
44 unsigned short device; /* device id */
46 unsigned max_blksize; /* maximum block size */
47 unsigned cur_blksize; /* current block size */
49 unsigned int state; /* function state */
50 #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
52 u8 tmpbuf[4]; /* DMA:able scratch buffer */
54 struct sdio_func_tuple *tuples;
57 #define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
59 #define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
61 #define sdio_func_id(f) ((f)->dev.bus_id)
63 #define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
64 #define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
67 * SDIO function device driver
71 const struct sdio_device_id *id_table;
73 int (*probe)(struct sdio_func *, const struct sdio_device_id *);
74 void (*remove)(struct sdio_func *);
76 struct device_driver drv;
80 * SDIO_DEVICE - macro used to describe a specific SDIO device
81 * @vend: the 16 bit manufacturer code
82 * @dev: the 16 bit function id
84 * This macro is used to create a struct sdio_device_id that matches a
85 * specific device. The class field will be set to SDIO_ANY_ID.
87 #define SDIO_DEVICE(vend,dev) \
88 .class = SDIO_ANY_ID, \
89 .vendor = (vend), .device = (dev)
92 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class
93 * @dev_class: the 8 bit standard interface code
95 * This macro is used to create a struct sdio_device_id that matches a
96 * specific standard SDIO function type. The vendor and device fields will
97 * be set to SDIO_ANY_ID.
99 #define SDIO_DEVICE_CLASS(dev_class) \
100 .class = (dev_class), \
101 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID
103 extern int sdio_register_driver(struct sdio_driver *);
104 extern void sdio_unregister_driver(struct sdio_driver *);
107 * SDIO I/O operations
109 extern void sdio_claim_host(struct sdio_func *func);
110 extern void sdio_release_host(struct sdio_func *func);
112 extern int sdio_enable_func(struct sdio_func *func);
113 extern int sdio_disable_func(struct sdio_func *func);
115 extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz);
117 extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
118 extern int sdio_release_irq(struct sdio_func *func);
120 extern unsigned char sdio_readb(struct sdio_func *func,
121 unsigned int addr, int *err_ret);
122 extern unsigned short sdio_readw(struct sdio_func *func,
123 unsigned int addr, int *err_ret);
124 extern unsigned long sdio_readl(struct sdio_func *func,
125 unsigned int addr, int *err_ret);
127 extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst,
128 unsigned int addr, int count);
129 extern int sdio_readsb(struct sdio_func *func, void *dst,
130 unsigned int addr, int count);
132 extern void sdio_writeb(struct sdio_func *func, unsigned char b,
133 unsigned int addr, int *err_ret);
134 extern void sdio_writew(struct sdio_func *func, unsigned short b,
135 unsigned int addr, int *err_ret);
136 extern void sdio_writel(struct sdio_func *func, unsigned long b,
137 unsigned int addr, int *err_ret);
139 extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
140 void *src, int count);
141 extern int sdio_writesb(struct sdio_func *func, unsigned int addr,
142 void *src, int count);