Line data Source code
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 1 :
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 1 :
42 : struct mmc_ext_csd {
43 : u8 rev;
44 : unsigned int sa_timeout; /* Units: 100ns */
45 : unsigned int hs_max_dtr;
46 : unsigned int sectors;
47 : };
48 1 :
49 : struct sd_scr {
50 : unsigned char sda_vsn;
51 : unsigned char bus_widths;
52 : #define SD_SCR_BUS_WIDTH_1 (1<<0)
53 1 : #define SD_SCR_BUS_WIDTH_4 (1<<2)
54 : };
55 :
56 : struct sd_switch_caps {
57 : unsigned int hs_max_dtr;
58 : };
59 1 :
60 : struct sdio_cccr {
61 : unsigned int sdio_vsn;
62 : unsigned int sd_vsn;
63 : unsigned int multi_block:1,
64 : low_speed:1,
65 : wide_bus:1,
66 : high_power:1,
67 : high_speed:1,
68 : disable_cd:1;
69 : };
70 1 :
71 : struct sdio_cis {
72 : unsigned short vendor;
73 : unsigned short device;
74 : unsigned short blksize;
75 : unsigned int max_dtr;
76 : };
77 1 :
78 1 : struct mmc_host;
79 1 : struct sdio_func;
80 : struct sdio_func_tuple;
81 :
82 : #define SDIO_MAX_FUNCS 7
83 :
84 : /*
85 : * MMC device
86 : */
87 : struct mmc_card {
88 : struct mmc_host *host; /* the host this device belongs to */
89 : struct device dev; /* the device */
90 : unsigned int rca; /* relative card address of device */
91 : unsigned int type; /* card type */
92 : #define MMC_TYPE_MMC 0 /* MMC card */
93 : #define MMC_TYPE_SD 1 /* SD card */
94 : #define MMC_TYPE_SDIO 2 /* SDIO card */
95 : unsigned int state; /* (our) card state */
96 : #define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
97 : #define MMC_STATE_READONLY (1<<1) /* card is read-only */
98 : #define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
99 : #define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
100 : unsigned int quirks; /* card quirks */
101 : #define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
102 :
103 : u32 raw_cid[4]; /* raw card CID */
104 : u32 raw_csd[4]; /* raw card CSD */
105 : u32 raw_scr[2]; /* raw card SCR */
106 : struct mmc_cid cid; /* card identification */
107 : struct mmc_csd csd; /* card specific */
108 : struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
109 : struct sd_scr scr; /* extra SD information */
110 : struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
111 :
112 : unsigned int sdio_funcs; /* number of SDIO functions */
113 : struct sdio_cccr cccr; /* common card info */
114 : struct sdio_cis cis; /* common tuple info */
115 : struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
116 : unsigned num_info; /* number of info strings */
117 : const char **info; /* info strings */
118 : struct sdio_func_tuple *tuples; /* unknown common tuples */
119 :
120 : struct dentry *debugfs_root;
121 : };
122 :
123 : #define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
124 : #define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
125 : #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
126 :
127 : #define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
128 : #define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
129 : #define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
130 : #define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
131 :
132 : #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
133 : #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
134 : #define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
135 : #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
136 :
137 : static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
138 : {
139 0 : return c->quirks & MMC_QUIRK_LENIENT_FN0;
140 : }
141 1 :
142 : #define mmc_card_name(c) ((c)->cid.prod_name)
143 : #define mmc_card_id(c) (dev_name(&(c)->dev))
144 :
145 : #define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
146 : #define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
147 : #define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
148 :
149 : /*
150 : * MMC device driver (e.g., Flash card, I/O card...)
151 : */
152 : struct mmc_driver {
153 : struct device_driver drv;
154 : int (*probe)(struct mmc_card *);
155 : void (*remove)(struct mmc_card *);
156 : int (*suspend)(struct mmc_card *, pm_message_t);
157 : int (*resume)(struct mmc_card *);
158 : };
159 :
160 : extern int mmc_register_driver(struct mmc_driver *);
161 : extern void mmc_unregister_driver(struct mmc_driver *);
162 :
163 : #endif
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