[PATCH] sd: read-only switch
[deliverable/linux.git] / include / linux / mmc / card.h
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1/*
2 * linux/include/linux/mmc/card.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 * Card driver specific definitions.
9 */
10#ifndef LINUX_MMC_CARD_H
11#define LINUX_MMC_CARD_H
12
13#include <linux/mmc/mmc.h>
14
15struct mmc_cid {
16 unsigned int manfid;
17 char prod_name[8];
18 unsigned int serial;
19 unsigned short oemid;
20 unsigned short year;
21 unsigned char hwrev;
22 unsigned char fwrev;
23 unsigned char month;
24};
25
26struct mmc_csd {
27 unsigned char mmca_vsn;
28 unsigned short cmdclass;
29 unsigned short tacc_clks;
30 unsigned int tacc_ns;
31 unsigned int max_dtr;
32 unsigned int read_blkbits;
33 unsigned int capacity;
34};
35
36struct mmc_host;
37
38/*
39 * MMC device
40 */
41struct mmc_card {
42 struct list_head node; /* node in hosts devices list */
43 struct mmc_host *host; /* the host this device belongs to */
44 struct device dev; /* the device */
45 unsigned int rca; /* relative card address of device */
46 unsigned int state; /* (our) card state */
47#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
48#define MMC_STATE_DEAD (1<<1) /* device no longer in stack */
49#define MMC_STATE_BAD (1<<2) /* unrecognised device */
335eadf2 50#define MMC_STATE_SDCARD (1<<3) /* is an SD card */
a00fc090 51#define MMC_STATE_READONLY (1<<4) /* card is read-only */
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52 u32 raw_cid[4]; /* raw card CID */
53 u32 raw_csd[4]; /* raw card CSD */
54 struct mmc_cid cid; /* card identification */
55 struct mmc_csd csd; /* card specific */
56};
57
58#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
59#define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD)
60#define mmc_card_bad(c) ((c)->state & MMC_STATE_BAD)
335eadf2 61#define mmc_card_sd(c) ((c)->state & MMC_STATE_SDCARD)
a00fc090 62#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
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63
64#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
65#define mmc_card_set_dead(c) ((c)->state |= MMC_STATE_DEAD)
66#define mmc_card_set_bad(c) ((c)->state |= MMC_STATE_BAD)
335eadf2 67#define mmc_card_set_sd(c) ((c)->state |= MMC_STATE_SDCARD)
a00fc090 68#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
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69
70#define mmc_card_name(c) ((c)->cid.prod_name)
71#define mmc_card_id(c) ((c)->dev.bus_id)
72
73#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
74#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
75#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
76
77/*
78 * MMC device driver (e.g., Flash card, I/O card...)
79 */
80struct mmc_driver {
81 struct device_driver drv;
82 int (*probe)(struct mmc_card *);
83 void (*remove)(struct mmc_card *);
84 int (*suspend)(struct mmc_card *, pm_message_t);
85 int (*resume)(struct mmc_card *);
86};
87
88extern int mmc_register_driver(struct mmc_driver *);
89extern void mmc_unregister_driver(struct mmc_driver *);
90
91static inline int mmc_card_claim_host(struct mmc_card *card)
92{
93 return __mmc_claim_host(card->host, card);
94}
95
96#define mmc_card_release_host(c) mmc_release_host((c)->host)
97
98#endif
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