]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blob - include/linux/mmc/card.h
ee6e822d59947312d3bc464508e9f38ff1686e91
[linux-2.6-omap-h63xx.git] / include / linux / mmc / card.h
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/core.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            r2w_factor;
32         unsigned int            max_dtr;
33         unsigned int            read_blkbits;
34         unsigned int            write_blkbits;
35         unsigned int            capacity;
36         unsigned int            read_partial:1,
37                                 read_misalign:1,
38                                 write_partial:1,
39                                 write_misalign:1;
40 };
41
42 struct mmc_ext_csd {
43         unsigned int            hs_max_dtr;
44         unsigned int            sectors;
45 };
46
47 struct sd_scr {
48         unsigned char           sda_vsn;
49         unsigned char           bus_widths;
50 #define SD_SCR_BUS_WIDTH_1      (1<<0)
51 #define SD_SCR_BUS_WIDTH_4      (1<<2)
52 };
53
54 struct sd_switch_caps {
55         unsigned int            hs_max_dtr;
56 };
57
58 struct sdio_cccr {
59         unsigned int            sdio_vsn;
60         unsigned int            sd_vsn;
61         unsigned int            multi_block:1,
62                                 low_speed:1,
63                                 wide_bus:1,
64                                 high_power:1,
65                                 high_speed:1;
66 };
67
68 struct sdio_cis {
69         unsigned short          vendor;
70         unsigned short          device;
71         unsigned short          blksize;
72         unsigned int            max_dtr;
73 };
74
75 struct mmc_host;
76 struct sdio_func;
77 struct sdio_func_tuple;
78
79 #define SDIO_MAX_FUNCS          7
80
81 /*
82  * MMC device
83  */
84 struct mmc_card {
85         struct mmc_host         *host;          /* the host this device belongs to */
86         struct device           dev;            /* the device */
87         unsigned int            rca;            /* relative card address of device */
88         unsigned int            type;           /* card type */
89 #define MMC_TYPE_MMC            0               /* MMC card */
90 #define MMC_TYPE_SD             1               /* SD card */
91 #define MMC_TYPE_SDIO           2               /* SDIO card */
92         unsigned int            state;          /* (our) card state */
93 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
94 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
95 #define MMC_STATE_HIGHSPEED     (1<<2)          /* card is in high speed mode */
96 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
97
98         u32                     raw_cid[4];     /* raw card CID */
99         u32                     raw_csd[4];     /* raw card CSD */
100         u32                     raw_scr[2];     /* raw card SCR */
101         struct mmc_cid          cid;            /* card identification */
102         struct mmc_csd          csd;            /* card specific */
103         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
104         struct sd_scr           scr;            /* extra SD information */
105         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
106
107         unsigned int            sdio_funcs;     /* number of SDIO functions */
108         struct sdio_cccr        cccr;           /* common card info */
109         struct sdio_cis         cis;            /* common tuple info */
110         struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
111         unsigned                num_info;       /* number of info strings */
112         const char              **info;         /* info strings */
113         struct sdio_func_tuple  *tuples;        /* unknown common tuples */
114
115         struct dentry           *debugfs_root;
116 };
117
118 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
119 #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
120 #define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
121
122 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
123 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
124 #define mmc_card_highspeed(c)   ((c)->state & MMC_STATE_HIGHSPEED)
125 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
126
127 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
128 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
129 #define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
130 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
131
132 #define mmc_card_name(c)        ((c)->cid.prod_name)
133 #define mmc_card_id(c)          ((c)->dev.bus_id)
134
135 #define mmc_list_to_card(l)     container_of(l, struct mmc_card, node)
136 #define mmc_get_drvdata(c)      dev_get_drvdata(&(c)->dev)
137 #define mmc_set_drvdata(c,d)    dev_set_drvdata(&(c)->dev, d)
138
139 /*
140  * MMC device driver (e.g., Flash card, I/O card...)
141  */
142 struct mmc_driver {
143         struct device_driver drv;
144         int (*probe)(struct mmc_card *);
145         void (*remove)(struct mmc_card *);
146         int (*suspend)(struct mmc_card *, pm_message_t);
147         int (*resume)(struct mmc_card *);
148 };
149
150 extern int mmc_register_driver(struct mmc_driver *);
151 extern void mmc_unregister_driver(struct mmc_driver *);
152
153 #endif