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-rw-r--r--include/linux/mmc/sdio_func.h153
1 files changed, 153 insertions, 0 deletions
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
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1/*
2 * include/linux/mmc/sdio_func.h
3 *
4 * Copyright 2007 Pierre Ossman
5 *
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.
10 */
11
12#ifndef MMC_SDIO_FUNC_H
13#define MMC_SDIO_FUNC_H
14
15#include <linux/device.h>
16#include <linux/mod_devicetable.h>
17
18struct mmc_card;
19struct sdio_func;
20
21typedef void (sdio_irq_handler_t)(struct sdio_func *);
22
23/*
24 * SDIO function CIS tuple (unknown to the core)
25 */
26struct sdio_func_tuple {
27 struct sdio_func_tuple *next;
28 unsigned char code;
29 unsigned char size;
30 unsigned char data[0];
31};
32
33/*
34 * SDIO function devices
35 */
36struct sdio_func {
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 */
41
42 unsigned char class; /* standard interface class */
43 unsigned short vendor; /* vendor id */
44 unsigned short device; /* device id */
45
46 unsigned max_blksize; /* maximum block size */
47 unsigned cur_blksize; /* current block size */
48
49 unsigned int state; /* function state */
50#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
51
52 u8 tmpbuf[4]; /* DMA:able scratch buffer */
53
54 unsigned num_info; /* number of info strings */
55 const char **info; /* info strings */
56
57 struct sdio_func_tuple *tuples;
58};
59
60#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
61
62#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
63
64#define sdio_func_id(f) ((f)->dev.bus_id)
65
66#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
67#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
68
69/*
70 * SDIO function device driver
71 */
72struct sdio_driver {
73 char *name;
74 const struct sdio_device_id *id_table;
75
76 int (*probe)(struct sdio_func *, const struct sdio_device_id *);
77 void (*remove)(struct sdio_func *);
78
79 struct device_driver drv;
80};
81
82/**
83 * SDIO_DEVICE - macro used to describe a specific SDIO device
84 * @vend: the 16 bit manufacturer code
85 * @dev: the 16 bit function id
86 *
87 * This macro is used to create a struct sdio_device_id that matches a
88 * specific device. The class field will be set to SDIO_ANY_ID.
89 */
90#define SDIO_DEVICE(vend,dev) \
91 .class = SDIO_ANY_ID, \
92 .vendor = (vend), .device = (dev)
93
94/**
95 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class
96 * @dev_class: the 8 bit standard interface code
97 *
98 * This macro is used to create a struct sdio_device_id that matches a
99 * specific standard SDIO function type. The vendor and device fields will
100 * be set to SDIO_ANY_ID.
101 */
102#define SDIO_DEVICE_CLASS(dev_class) \
103 .class = (dev_class), \
104 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID
105
106extern int sdio_register_driver(struct sdio_driver *);
107extern void sdio_unregister_driver(struct sdio_driver *);
108
109/*
110 * SDIO I/O operations
111 */
112extern void sdio_claim_host(struct sdio_func *func);
113extern void sdio_release_host(struct sdio_func *func);
114
115extern int sdio_enable_func(struct sdio_func *func);
116extern int sdio_disable_func(struct sdio_func *func);
117
118extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz);
119
120extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
121extern int sdio_release_irq(struct sdio_func *func);
122
123extern unsigned char sdio_readb(struct sdio_func *func,
124 unsigned int addr, int *err_ret);
125extern unsigned short sdio_readw(struct sdio_func *func,
126 unsigned int addr, int *err_ret);
127extern unsigned long sdio_readl(struct sdio_func *func,
128 unsigned int addr, int *err_ret);
129
130extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst,
131 unsigned int addr, int count);
132extern int sdio_readsb(struct sdio_func *func, void *dst,
133 unsigned int addr, int count);
134
135extern void sdio_writeb(struct sdio_func *func, unsigned char b,
136 unsigned int addr, int *err_ret);
137extern void sdio_writew(struct sdio_func *func, unsigned short b,
138 unsigned int addr, int *err_ret);
139extern void sdio_writel(struct sdio_func *func, unsigned long b,
140 unsigned int addr, int *err_ret);
141
142extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
143 void *src, int count);
144extern int sdio_writesb(struct sdio_func *func, unsigned int addr,
145 void *src, int count);
146
147extern unsigned char sdio_f0_readb(struct sdio_func *func,
148 unsigned int addr, int *err_ret);
149extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
150 unsigned int addr, int *err_ret);
151
152#endif
153
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