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
15 struct 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
26 struct 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
36 struct mmc_host;
37
38 /*
39 * MMC device
40 */
41 struct 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 */
50 u32 raw_cid[4]; /* raw card CID */
51 u32 raw_csd[4]; /* raw card CSD */
52 struct mmc_cid cid; /* card identification */
53 struct mmc_csd csd; /* card specific */
54 };
55
56 #define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
57 #define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD)
58 #define mmc_card_bad(c) ((c)->state & MMC_STATE_BAD)
59
60 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
61 #define mmc_card_set_dead(c) ((c)->state |= MMC_STATE_DEAD)
62 #define mmc_card_set_bad(c) ((c)->state |= MMC_STATE_BAD)
63
64 #define mmc_card_name(c) ((c)->cid.prod_name)
65 #define mmc_card_id(c) ((c)->dev.bus_id)
66
67 #define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
68 #define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
69 #define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
70
71 /*
72 * MMC device driver (e.g., Flash card, I/O card...)
73 */
74 struct mmc_driver {
75 struct device_driver drv;
76 int (*probe)(struct mmc_card *);
77 void (*remove)(struct mmc_card *);
78 int (*suspend)(struct mmc_card *, u32);
79 int (*resume)(struct mmc_card *);
80 };
81
82 extern int mmc_register_driver(struct mmc_driver *);
83 extern void mmc_unregister_driver(struct mmc_driver *);
84
85 static inline int mmc_card_claim_host(struct mmc_card *card)
86 {
87 return __mmc_claim_host(card->host, card);
88 }
89
90 #define mmc_card_release_host(c) mmc_release_host((c)->host)
91
92 #endif
93
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