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gerrit-public.fairphone.software / kernel / msm-4.9 / 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 / . / include / linux / mmc / host.h
blob: f67686cef62aee1c1f5586e6e724d8d66aa22186 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame^]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
15struct 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 power_mode; /* power supply mode */
50
51#define MMC_POWER_OFF 0
52#define MMC_POWER_UP 1
53#define MMC_POWER_ON 2
54};
55
56struct mmc_host_ops {
57 void (*request)(struct mmc_host *host, struct mmc_request *req);
58 void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
59};
60
61struct mmc_card;
62struct device;
63
64struct mmc_host {
65 struct device *dev;
66 struct mmc_host_ops *ops;
67 unsigned int f_min;
68 unsigned int f_max;
69 u32 ocr_avail;
70 char host_name[8];
71
72 /* host specific block data */
73 unsigned int max_seg_size; /* see blk_queue_max_segment_size */
74 unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */
75 unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */
76 unsigned short max_sectors; /* see blk_queue_max_sectors */
77 unsigned short unused;
78
79 /* private data */
80 struct mmc_ios ios; /* current io bus settings */
81 u32 ocr; /* the current OCR setting */
82
83 struct list_head cards; /* devices attached to this host */
84
85 wait_queue_head_t wq;
86 spinlock_t lock; /* card_busy lock */
87 struct mmc_card *card_busy; /* the MMC card claiming host */
88 struct mmc_card *card_selected; /* the selected MMC card */
89
90 struct work_struct detect;
91};
92
93extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
94extern int mmc_add_host(struct mmc_host *);
95extern void mmc_remove_host(struct mmc_host *);
96extern void mmc_free_host(struct mmc_host *);
97
98#define mmc_priv(x) ((void *)((x) + 1))
99#define mmc_dev(x) ((x)->dev)
100
101extern int mmc_suspend_host(struct mmc_host *, u32);
102extern int mmc_resume_host(struct mmc_host *);
103
104extern void mmc_detect_change(struct mmc_host *);
105extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
106
107#endif
108