tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * include/linux/mmc/sdio_func.h
3 *
4 * Copyright 2007-2008 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 enable_timeout; /* max enable timeout in msec */
50
51 unsigned int state; /* function state */
52#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
53
54 u8 tmpbuf[4]; /* DMA:able scratch buffer */
55
56 unsigned num_info; /* number of info strings */
57 const char **info; /* info strings */
58
59 struct sdio_func_tuple *tuples;
60};
61
62#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT)
63
64#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
65
66#define sdio_func_id(f) (dev_name(&(f)->dev))
67
68#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
69#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
70#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev)
71
72/*
73 * SDIO function device driver
74 */
75struct sdio_driver {
76 char *name;
77 const struct sdio_device_id *id_table;
78
79 int (*probe)(struct sdio_func *, const struct sdio_device_id *);
80 void (*remove)(struct sdio_func *);
81
82 struct device_driver drv;
83};
84
85#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
86
87/**
88 * SDIO_DEVICE - macro used to describe a specific SDIO device
89 * @vend: the 16 bit manufacturer code
90 * @dev: the 16 bit function id
91 *
92 * This macro is used to create a struct sdio_device_id that matches a
93 * specific device. The class field will be set to SDIO_ANY_ID.
94 */
95#define SDIO_DEVICE(vend,dev) \
96 .class = SDIO_ANY_ID, \
97 .vendor = (vend), .device = (dev)
98
99/**
100 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class
101 * @dev_class: the 8 bit standard interface code
102 *
103 * This macro is used to create a struct sdio_device_id that matches a
104 * specific standard SDIO function type. The vendor and device fields will
105 * be set to SDIO_ANY_ID.
106 */
107#define SDIO_DEVICE_CLASS(dev_class) \
108 .class = (dev_class), \
109 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID
110
111extern int sdio_register_driver(struct sdio_driver *);
112extern void sdio_unregister_driver(struct sdio_driver *);
113
114/*
115 * SDIO I/O operations
116 */
117extern void sdio_claim_host(struct sdio_func *func);
118extern void sdio_release_host(struct sdio_func *func);
119
120extern int sdio_enable_func(struct sdio_func *func);
121extern int sdio_disable_func(struct sdio_func *func);
122
123extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz);
124
125extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
126extern int sdio_release_irq(struct sdio_func *func);
127
128extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz);
129
130extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret);
131extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret);
132extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret);
133
134extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst,
135 unsigned int addr, int count);
136extern int sdio_readsb(struct sdio_func *func, void *dst,
137 unsigned int addr, int count);
138
139extern void sdio_writeb(struct sdio_func *func, u8 b,
140 unsigned int addr, int *err_ret);
141extern void sdio_writew(struct sdio_func *func, u16 b,
142 unsigned int addr, int *err_ret);
143extern void sdio_writel(struct sdio_func *func, u32 b,
144 unsigned int addr, int *err_ret);
145
146extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
147 void *src, int count);
148extern int sdio_writesb(struct sdio_func *func, unsigned int addr,
149 void *src, int count);
150
151extern unsigned char sdio_f0_readb(struct sdio_func *func,
152 unsigned int addr, int *err_ret);
153extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
154 unsigned int addr, int *err_ret);
155
156#endif
157