|
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 |
|
18 struct mmc_card; |
|
19 struct sdio_func; |
|
20 |
|
21 typedef void (sdio_irq_handler_t)(struct sdio_func *); |
|
22 |
|
23 /* |
|
24 * SDIO function CIS tuple (unknown to the core) |
|
25 */ |
|
26 struct 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 */ |
|
36 struct 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 |
|
71 /* |
|
72 * SDIO function device driver |
|
73 */ |
|
74 struct sdio_driver { |
|
75 char *name; |
|
76 const struct sdio_device_id *id_table; |
|
77 |
|
78 int (*probe)(struct sdio_func *, const struct sdio_device_id *); |
|
79 void (*remove)(struct sdio_func *); |
|
80 |
|
81 struct device_driver drv; |
|
82 }; |
|
83 |
|
84 /** |
|
85 * SDIO_DEVICE - macro used to describe a specific SDIO device |
|
86 * @vend: the 16 bit manufacturer code |
|
87 * @dev: the 16 bit function id |
|
88 * |
|
89 * This macro is used to create a struct sdio_device_id that matches a |
|
90 * specific device. The class field will be set to SDIO_ANY_ID. |
|
91 */ |
|
92 #define SDIO_DEVICE(vend,dev) \ |
|
93 .class = SDIO_ANY_ID, \ |
|
94 .vendor = (vend), .device = (dev) |
|
95 |
|
96 /** |
|
97 * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class |
|
98 * @dev_class: the 8 bit standard interface code |
|
99 * |
|
100 * This macro is used to create a struct sdio_device_id that matches a |
|
101 * specific standard SDIO function type. The vendor and device fields will |
|
102 * be set to SDIO_ANY_ID. |
|
103 */ |
|
104 #define SDIO_DEVICE_CLASS(dev_class) \ |
|
105 .class = (dev_class), \ |
|
106 .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID |
|
107 |
|
108 extern int sdio_register_driver(struct sdio_driver *); |
|
109 extern void sdio_unregister_driver(struct sdio_driver *); |
|
110 |
|
111 /* |
|
112 * SDIO I/O operations |
|
113 */ |
|
114 extern void sdio_claim_host(struct sdio_func *func); |
|
115 extern void sdio_release_host(struct sdio_func *func); |
|
116 |
|
117 extern int sdio_enable_func(struct sdio_func *func); |
|
118 extern int sdio_disable_func(struct sdio_func *func); |
|
119 |
|
120 extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz); |
|
121 |
|
122 extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler); |
|
123 extern int sdio_release_irq(struct sdio_func *func); |
|
124 |
|
125 extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz); |
|
126 |
|
127 extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret); |
|
128 extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret); |
|
129 extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret); |
|
130 |
|
131 extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst, |
|
132 unsigned int addr, int count); |
|
133 extern int sdio_readsb(struct sdio_func *func, void *dst, |
|
134 unsigned int addr, int count); |
|
135 |
|
136 extern void sdio_writeb(struct sdio_func *func, u8 b, |
|
137 unsigned int addr, int *err_ret); |
|
138 extern void sdio_writew(struct sdio_func *func, u16 b, |
|
139 unsigned int addr, int *err_ret); |
|
140 extern void sdio_writel(struct sdio_func *func, u32 b, |
|
141 unsigned int addr, int *err_ret); |
|
142 |
|
143 extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr, |
|
144 void *src, int count); |
|
145 extern int sdio_writesb(struct sdio_func *func, unsigned int addr, |
|
146 void *src, int count); |
|
147 |
|
148 extern unsigned char sdio_f0_readb(struct sdio_func *func, |
|
149 unsigned int addr, int *err_ret); |
|
150 extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b, |
|
151 unsigned int addr, int *err_ret); |
|
152 |
|
153 #endif |
|
154 |