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1da177e4 LT |
1 | /* |
2 | * linux/include/linux/mmc/host.h | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * Host driver specific definitions. | |
9 | */ | |
10 | #ifndef LINUX_MMC_HOST_H | |
11 | #define LINUX_MMC_HOST_H | |
12 | ||
13 | #include <linux/mmc/mmc.h> | |
14 | ||
15 | struct mmc_ios { | |
16 | unsigned int clock; /* clock rate */ | |
17 | unsigned short vdd; | |
18 | ||
19 | #define MMC_VDD_150 0 | |
20 | #define MMC_VDD_155 1 | |
21 | #define MMC_VDD_160 2 | |
22 | #define MMC_VDD_165 3 | |
23 | #define MMC_VDD_170 4 | |
24 | #define MMC_VDD_180 5 | |
25 | #define MMC_VDD_190 6 | |
26 | #define MMC_VDD_200 7 | |
27 | #define MMC_VDD_210 8 | |
28 | #define MMC_VDD_220 9 | |
29 | #define MMC_VDD_230 10 | |
30 | #define MMC_VDD_240 11 | |
31 | #define MMC_VDD_250 12 | |
32 | #define MMC_VDD_260 13 | |
33 | #define MMC_VDD_270 14 | |
34 | #define MMC_VDD_280 15 | |
35 | #define MMC_VDD_290 16 | |
36 | #define MMC_VDD_300 17 | |
37 | #define MMC_VDD_310 18 | |
38 | #define MMC_VDD_320 19 | |
39 | #define MMC_VDD_330 20 | |
40 | #define MMC_VDD_340 21 | |
41 | #define MMC_VDD_350 22 | |
42 | #define MMC_VDD_360 23 | |
43 | ||
44 | unsigned char bus_mode; /* command output mode */ | |
45 | ||
46 | #define MMC_BUSMODE_OPENDRAIN 1 | |
47 | #define MMC_BUSMODE_PUSHPULL 2 | |
48 | ||
865e9f13 PO |
49 | unsigned char chip_select; /* SPI chip select */ |
50 | ||
51 | #define MMC_CS_DONTCARE 0 | |
52 | #define MMC_CS_HIGH 1 | |
53 | #define MMC_CS_LOW 2 | |
54 | ||
1da177e4 LT |
55 | unsigned char power_mode; /* power supply mode */ |
56 | ||
57 | #define MMC_POWER_OFF 0 | |
58 | #define MMC_POWER_UP 1 | |
59 | #define MMC_POWER_ON 2 | |
f218278a PO |
60 | |
61 | unsigned char bus_width; /* data bus width */ | |
62 | ||
63 | #define MMC_BUS_WIDTH_1 0 | |
64 | #define MMC_BUS_WIDTH_4 2 | |
cd9277c0 PO |
65 | |
66 | unsigned char timing; /* timing specification used */ | |
67 | ||
68 | #define MMC_TIMING_LEGACY 0 | |
69 | #define MMC_TIMING_MMC_HS 1 | |
70 | #define MMC_TIMING_SD_HS 2 | |
1da177e4 LT |
71 | }; |
72 | ||
73 | struct mmc_host_ops { | |
74 | void (*request)(struct mmc_host *host, struct mmc_request *req); | |
75 | void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); | |
a00fc090 | 76 | int (*get_ro)(struct mmc_host *host); |
1da177e4 LT |
77 | }; |
78 | ||
79 | struct mmc_card; | |
80 | struct device; | |
81 | ||
82 | struct mmc_host { | |
fcaf71fd GKH |
83 | struct device *parent; |
84 | struct device class_dev; | |
dce77377 | 85 | int index; |
f57b225e | 86 | const struct mmc_host_ops *ops; |
1da177e4 LT |
87 | unsigned int f_min; |
88 | unsigned int f_max; | |
89 | u32 ocr_avail; | |
1da177e4 | 90 | |
f74d132c PO |
91 | #define MMC_VDD_145_150 0x00000001 /* VDD voltage 1.45 - 1.50 */ |
92 | #define MMC_VDD_150_155 0x00000002 /* VDD voltage 1.50 - 1.55 */ | |
93 | #define MMC_VDD_155_160 0x00000004 /* VDD voltage 1.55 - 1.60 */ | |
94 | #define MMC_VDD_160_165 0x00000008 /* VDD voltage 1.60 - 1.65 */ | |
95 | #define MMC_VDD_165_170 0x00000010 /* VDD voltage 1.65 - 1.70 */ | |
96 | #define MMC_VDD_17_18 0x00000020 /* VDD voltage 1.7 - 1.8 */ | |
97 | #define MMC_VDD_18_19 0x00000040 /* VDD voltage 1.8 - 1.9 */ | |
98 | #define MMC_VDD_19_20 0x00000080 /* VDD voltage 1.9 - 2.0 */ | |
99 | #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ | |
100 | #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ | |
101 | #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ | |
102 | #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ | |
103 | #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ | |
104 | #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ | |
105 | #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ | |
106 | #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ | |
107 | #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ | |
108 | #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ | |
109 | #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ | |
110 | #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ | |
111 | #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ | |
112 | #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ | |
113 | #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ | |
114 | #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ | |
115 | ||
f218278a PO |
116 | unsigned long caps; /* Host capabilities */ |
117 | ||
118 | #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ | |
db53f28b | 119 | #define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */ |
42431acb | 120 | #define MMC_CAP_BYTEBLOCK (1 << 2) /* Can do non-log2 block sizes */ |
cd9277c0 PO |
121 | #define MMC_CAP_MMC_HIGHSPEED (1 << 3) /* Can do MMC high-speed timing */ |
122 | #define MMC_CAP_SD_HIGHSPEED (1 << 4) /* Can do SD high-speed timing */ | |
f218278a | 123 | |
1da177e4 LT |
124 | /* host specific block data */ |
125 | unsigned int max_seg_size; /* see blk_queue_max_segment_size */ | |
126 | unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */ | |
127 | unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */ | |
1da177e4 | 128 | unsigned short unused; |
55db890a | 129 | unsigned int max_req_size; /* maximum number of bytes in one req */ |
fe4a3c7a | 130 | unsigned int max_blk_size; /* maximum size of one mmc block */ |
55db890a | 131 | unsigned int max_blk_count; /* maximum number of blocks in one req */ |
1da177e4 LT |
132 | |
133 | /* private data */ | |
134 | struct mmc_ios ios; /* current io bus settings */ | |
135 | u32 ocr; /* the current OCR setting */ | |
136 | ||
335eadf2 PO |
137 | unsigned int mode; /* current card mode of host */ |
138 | #define MMC_MODE_MMC 0 | |
139 | #define MMC_MODE_SD 1 | |
140 | ||
1da177e4 LT |
141 | struct list_head cards; /* devices attached to this host */ |
142 | ||
143 | wait_queue_head_t wq; | |
f22ee4ed PO |
144 | spinlock_t lock; /* claimed lock */ |
145 | unsigned int claimed:1; /* host exclusively claimed */ | |
146 | ||
1da177e4 LT |
147 | struct mmc_card *card_selected; /* the selected MMC card */ |
148 | ||
c4028958 | 149 | struct delayed_work detect; |
3b91e550 PO |
150 | #ifdef CONFIG_MMC_DEBUG |
151 | unsigned int removed:1; /* host is being removed */ | |
152 | #endif | |
01357dca RK |
153 | |
154 | unsigned long private[0] ____cacheline_aligned; | |
1da177e4 LT |
155 | }; |
156 | ||
157 | extern struct mmc_host *mmc_alloc_host(int extra, struct device *); | |
158 | extern int mmc_add_host(struct mmc_host *); | |
159 | extern void mmc_remove_host(struct mmc_host *); | |
160 | extern void mmc_free_host(struct mmc_host *); | |
161 | ||
01357dca RK |
162 | static inline void *mmc_priv(struct mmc_host *host) |
163 | { | |
164 | return (void *)host->private; | |
165 | } | |
166 | ||
fcaf71fd | 167 | #define mmc_dev(x) ((x)->parent) |
11354d03 | 168 | #define mmc_classdev(x) (&(x)->class_dev) |
fcaf71fd | 169 | #define mmc_hostname(x) ((x)->class_dev.bus_id) |
1da177e4 | 170 | |
3bfffd97 | 171 | extern int mmc_suspend_host(struct mmc_host *, pm_message_t); |
1da177e4 LT |
172 | extern int mmc_resume_host(struct mmc_host *); |
173 | ||
8dc00335 | 174 | extern void mmc_detect_change(struct mmc_host *, unsigned long delay); |
1da177e4 LT |
175 | extern void mmc_request_done(struct mmc_host *, struct mmc_request *); |
176 | ||
177 | #endif | |
178 |