tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
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 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
42struct mmc_ext_csd {
43 unsigned int hs_max_dtr;
44 unsigned int sectors;
45};
46
47struct 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
54struct sd_switch_caps {
55 unsigned int hs_max_dtr;
56};
57
58struct 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
68struct sdio_cis {
69 unsigned short vendor;
70 unsigned short device;
71 unsigned short blksize;
72 unsigned int max_dtr;
73};
74
75struct mmc_host;
76struct sdio_func;
77struct sdio_func_tuple;
78
79#define SDIO_MAX_FUNCS 7
80
81/*
82 * MMC device
83 */
84struct 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) (dev_name(&(c)->dev))
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 */
142struct 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
150extern int mmc_register_driver(struct mmc_driver *);
151extern void mmc_unregister_driver(struct mmc_driver *);
152
153#endif