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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Pierre Ossman865e9f12005-09-03 16:45:02 +010049 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 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
62struct mmc_host_ops {
63 void (*request)(struct mmc_host *host, struct mmc_request *req);
64 void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
Pierre Ossmana00fc092005-09-06 15:18:52 -070065 int (*get_ro)(struct mmc_host *host);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066};
67
68struct mmc_card;
69struct device;
70
71struct mmc_host {
72 struct device *dev;
Russell King00b137c2005-08-19 09:41:24 +010073 struct class_device class_dev;
Russell Kingdce77372005-08-19 09:42:52 +010074 int index;
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 struct mmc_host_ops *ops;
76 unsigned int f_min;
77 unsigned int f_max;
78 u32 ocr_avail;
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80 /* host specific block data */
81 unsigned int max_seg_size; /* see blk_queue_max_segment_size */
82 unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */
83 unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */
84 unsigned short max_sectors; /* see blk_queue_max_sectors */
85 unsigned short unused;
86
87 /* private data */
88 struct mmc_ios ios; /* current io bus settings */
89 u32 ocr; /* the current OCR setting */
90
Pierre Ossman335eadf2005-09-06 15:18:50 -070091 unsigned int mode; /* current card mode of host */
92#define MMC_MODE_MMC 0
93#define MMC_MODE_SD 1
94
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 struct list_head cards; /* devices attached to this host */
96
97 wait_queue_head_t wq;
98 spinlock_t lock; /* card_busy lock */
99 struct mmc_card *card_busy; /* the MMC card claiming host */
100 struct mmc_card *card_selected; /* the selected MMC card */
101
102 struct work_struct detect;
103};
104
105extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
106extern int mmc_add_host(struct mmc_host *);
107extern void mmc_remove_host(struct mmc_host *);
108extern void mmc_free_host(struct mmc_host *);
109
110#define mmc_priv(x) ((void *)((x) + 1))
111#define mmc_dev(x) ((x)->dev)
Russell King1ad434d2005-08-19 09:42:21 +0100112#define mmc_hostname(x) ((x)->class_dev.class_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
Pavel Machek3bfffd92005-04-16 15:25:37 -0700114extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115extern int mmc_resume_host(struct mmc_host *);
116
117extern void mmc_detect_change(struct mmc_host *);
118extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
119
120#endif
121