165 lines
4.6 KiB
C
165 lines
4.6 KiB
C
/*
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* linux/include/linux/mmc/card.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Card driver specific definitions.
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*/
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#ifndef LINUX_MMC_CARD_H
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#define LINUX_MMC_CARD_H
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#include <linux/mmc/core.h>
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struct mmc_cid {
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unsigned int manfid;
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char prod_name[8];
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unsigned int serial;
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unsigned short oemid;
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unsigned short year;
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unsigned char hwrev;
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unsigned char fwrev;
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unsigned char month;
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};
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struct mmc_csd {
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unsigned char mmca_vsn;
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unsigned short cmdclass;
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unsigned short tacc_clks;
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unsigned int tacc_ns;
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unsigned int r2w_factor;
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unsigned int max_dtr;
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unsigned int read_blkbits;
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unsigned int write_blkbits;
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unsigned int capacity;
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unsigned int read_partial:1,
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read_misalign:1,
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write_partial:1,
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write_misalign:1;
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};
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struct mmc_ext_csd {
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u8 rev;
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unsigned int sa_timeout; /* Units: 100ns */
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unsigned int hs_max_dtr;
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unsigned int sectors;
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};
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struct sd_scr {
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unsigned char sda_vsn;
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unsigned char bus_widths;
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#define SD_SCR_BUS_WIDTH_1 (1<<0)
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#define SD_SCR_BUS_WIDTH_4 (1<<2)
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};
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struct sd_switch_caps {
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unsigned int hs_max_dtr;
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};
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struct sdio_cccr {
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unsigned int sdio_vsn;
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unsigned int sd_vsn;
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unsigned int multi_block:1,
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low_speed:1,
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wide_bus:1,
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high_power:1,
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high_speed:1,
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disable_cd:1;
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};
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struct sdio_cis {
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unsigned short vendor;
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unsigned short device;
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unsigned short blksize;
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unsigned int max_dtr;
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};
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struct mmc_host;
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struct sdio_func;
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struct sdio_func_tuple;
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#define SDIO_MAX_FUNCS 7
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/*
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* MMC device
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*/
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struct mmc_card {
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struct mmc_host *host; /* the host this device belongs to */
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struct device dev; /* the device */
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unsigned int rca; /* relative card address of device */
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unsigned int type; /* card type */
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#define MMC_TYPE_MMC 0 /* MMC card */
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#define MMC_TYPE_SD 1 /* SD card */
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#define MMC_TYPE_SDIO 2 /* SDIO card */
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#define MMC_TYPE_SDIO_WIMAX 3 /* SDIO card of WIMAX */
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unsigned int state; /* (our) card state */
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#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
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#define MMC_STATE_READONLY (1<<1) /* card is read-only */
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#define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
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#define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
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unsigned int quirks; /* card quirks */
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#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
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u32 raw_cid[4]; /* raw card CID */
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u32 raw_csd[4]; /* raw card CSD */
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u32 raw_scr[2]; /* raw card SCR */
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struct mmc_cid cid; /* card identification */
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struct mmc_csd csd; /* card specific */
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struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
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struct sd_scr scr; /* extra SD information */
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struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
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unsigned int sdio_funcs; /* number of SDIO functions */
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struct sdio_cccr cccr; /* common card info */
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struct sdio_cis cis; /* common tuple info */
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struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
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unsigned num_info; /* number of info strings */
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const char **info; /* info strings */
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struct sdio_func_tuple *tuples; /* unknown common tuples */
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struct dentry *debugfs_root;
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};
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#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
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#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
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#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
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#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
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#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
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#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
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#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
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#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
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#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
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#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
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#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
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static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_LENIENT_FN0;
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}
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#define mmc_card_name(c) ((c)->cid.prod_name)
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#define mmc_card_id(c) (dev_name(&(c)->dev))
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#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
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#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
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#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
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/*
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* MMC device driver (e.g., Flash card, I/O card...)
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*/
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struct mmc_driver {
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struct device_driver drv;
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int (*probe)(struct mmc_card *);
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void (*remove)(struct mmc_card *);
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int (*suspend)(struct mmc_card *, pm_message_t);
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int (*resume)(struct mmc_card *);
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};
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extern int mmc_register_driver(struct mmc_driver *);
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extern void mmc_unregister_driver(struct mmc_driver *);
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#endif
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