mmc: Move OCR bit defines
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / mmc / host.h
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
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
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
60
61 unsigned char bus_width; /* data bus width */
62
63 #define MMC_BUS_WIDTH_1 0
64 #define MMC_BUS_WIDTH_4 2
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
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);
76 int (*get_ro)(struct mmc_host *host);
77 };
78
79 struct mmc_card;
80 struct device;
81
82 struct mmc_host {
83 struct device *parent;
84 struct device class_dev;
85 int index;
86 const struct mmc_host_ops *ops;
87 unsigned int f_min;
88 unsigned int f_max;
89 u32 ocr_avail;
90
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
116 unsigned long caps; /* Host capabilities */
117
118 #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */
119 #define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */
120 #define MMC_CAP_BYTEBLOCK (1 << 2) /* Can do non-log2 block sizes */
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 */
123
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 */
128 unsigned short unused;
129 unsigned int max_req_size; /* maximum number of bytes in one req */
130 unsigned int max_blk_size; /* maximum size of one mmc block */
131 unsigned int max_blk_count; /* maximum number of blocks in one req */
132
133 /* private data */
134 struct mmc_ios ios; /* current io bus settings */
135 u32 ocr; /* the current OCR setting */
136
137 unsigned int mode; /* current card mode of host */
138 #define MMC_MODE_MMC 0
139 #define MMC_MODE_SD 1
140
141 struct list_head cards; /* devices attached to this host */
142
143 wait_queue_head_t wq;
144 spinlock_t lock; /* claimed lock */
145 unsigned int claimed:1; /* host exclusively claimed */
146
147 struct mmc_card *card_selected; /* the selected MMC card */
148
149 struct delayed_work detect;
150
151 unsigned long private[0] ____cacheline_aligned;
152 };
153
154 extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
155 extern int mmc_add_host(struct mmc_host *);
156 extern void mmc_remove_host(struct mmc_host *);
157 extern void mmc_free_host(struct mmc_host *);
158
159 static inline void *mmc_priv(struct mmc_host *host)
160 {
161 return (void *)host->private;
162 }
163
164 #define mmc_dev(x) ((x)->parent)
165 #define mmc_classdev(x) (&(x)->class_dev)
166 #define mmc_hostname(x) ((x)->class_dev.bus_id)
167
168 extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
169 extern int mmc_resume_host(struct mmc_host *);
170
171 extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
172 extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
173
174 #endif
175