mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-14 12:37:32 +00:00
db9935000d
Some sdio card are not following sdio standard, and do not work when the sdio bus's clock is gated. To keep functionnality for all legacy driver, we turn this quirk on for every sdio card. Drivers needs to disable the quirk manually when someone verifies that their supported card works with clock gating. Signed-off-by: Pierre Tardy <tardyp@gmail.com> Acked-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org>
206 lines
6.4 KiB
C
206 lines
6.4 KiB
C
/*
|
|
* linux/include/linux/mmc/card.h
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Card driver specific definitions.
|
|
*/
|
|
#ifndef LINUX_MMC_CARD_H
|
|
#define LINUX_MMC_CARD_H
|
|
|
|
#include <linux/mmc/core.h>
|
|
|
|
struct mmc_cid {
|
|
unsigned int manfid;
|
|
char prod_name[8];
|
|
unsigned int serial;
|
|
unsigned short oemid;
|
|
unsigned short year;
|
|
unsigned char hwrev;
|
|
unsigned char fwrev;
|
|
unsigned char month;
|
|
};
|
|
|
|
struct mmc_csd {
|
|
unsigned char structure;
|
|
unsigned char mmca_vsn;
|
|
unsigned short cmdclass;
|
|
unsigned short tacc_clks;
|
|
unsigned int tacc_ns;
|
|
unsigned int r2w_factor;
|
|
unsigned int max_dtr;
|
|
unsigned int erase_size; /* In sectors */
|
|
unsigned int read_blkbits;
|
|
unsigned int write_blkbits;
|
|
unsigned int capacity;
|
|
unsigned int read_partial:1,
|
|
read_misalign:1,
|
|
write_partial:1,
|
|
write_misalign:1;
|
|
};
|
|
|
|
struct mmc_ext_csd {
|
|
u8 rev;
|
|
u8 erase_group_def;
|
|
u8 sec_feature_support;
|
|
unsigned int sa_timeout; /* Units: 100ns */
|
|
unsigned int hs_max_dtr;
|
|
unsigned int sectors;
|
|
unsigned int card_type;
|
|
unsigned int hc_erase_size; /* In sectors */
|
|
unsigned int hc_erase_timeout; /* In milliseconds */
|
|
unsigned int sec_trim_mult; /* Secure trim multiplier */
|
|
unsigned int sec_erase_mult; /* Secure erase multiplier */
|
|
unsigned int trim_timeout; /* In milliseconds */
|
|
bool enhanced_area_en; /* enable bit */
|
|
unsigned long long enhanced_area_offset; /* Units: Byte */
|
|
unsigned int enhanced_area_size; /* Units: KB */
|
|
};
|
|
|
|
struct sd_scr {
|
|
unsigned char sda_vsn;
|
|
unsigned char bus_widths;
|
|
#define SD_SCR_BUS_WIDTH_1 (1<<0)
|
|
#define SD_SCR_BUS_WIDTH_4 (1<<2)
|
|
};
|
|
|
|
struct sd_ssr {
|
|
unsigned int au; /* In sectors */
|
|
unsigned int erase_timeout; /* In milliseconds */
|
|
unsigned int erase_offset; /* In milliseconds */
|
|
};
|
|
|
|
struct sd_switch_caps {
|
|
unsigned int hs_max_dtr;
|
|
};
|
|
|
|
struct sdio_cccr {
|
|
unsigned int sdio_vsn;
|
|
unsigned int sd_vsn;
|
|
unsigned int multi_block:1,
|
|
low_speed:1,
|
|
wide_bus:1,
|
|
high_power:1,
|
|
high_speed:1,
|
|
disable_cd:1;
|
|
};
|
|
|
|
struct sdio_cis {
|
|
unsigned short vendor;
|
|
unsigned short device;
|
|
unsigned short blksize;
|
|
unsigned int max_dtr;
|
|
};
|
|
|
|
struct mmc_host;
|
|
struct sdio_func;
|
|
struct sdio_func_tuple;
|
|
|
|
#define SDIO_MAX_FUNCS 7
|
|
|
|
/*
|
|
* MMC device
|
|
*/
|
|
struct mmc_card {
|
|
struct mmc_host *host; /* the host this device belongs to */
|
|
struct device dev; /* the device */
|
|
unsigned int rca; /* relative card address of device */
|
|
unsigned int type; /* card type */
|
|
#define MMC_TYPE_MMC 0 /* MMC card */
|
|
#define MMC_TYPE_SD 1 /* SD card */
|
|
#define MMC_TYPE_SDIO 2 /* SDIO card */
|
|
#define MMC_TYPE_SD_COMBO 3 /* SD combo (IO+mem) card */
|
|
unsigned int state; /* (our) card state */
|
|
#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
|
|
#define MMC_STATE_READONLY (1<<1) /* card is read-only */
|
|
#define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
|
|
#define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
|
|
#define MMC_STATE_HIGHSPEED_DDR (1<<4) /* card is in high speed mode */
|
|
unsigned int quirks; /* card quirks */
|
|
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
|
|
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
|
|
/* for byte mode */
|
|
#define MMC_QUIRK_NONSTD_SDIO (1<<2) /* non-standard SDIO card attached */
|
|
/* (missing CIA registers) */
|
|
#define MMC_QUIRK_BROKEN_CLK_GATING (1<<3) /* clock gating the sdio bus will make card fail */
|
|
|
|
unsigned int erase_size; /* erase size in sectors */
|
|
unsigned int erase_shift; /* if erase unit is power 2 */
|
|
unsigned int pref_erase; /* in sectors */
|
|
u8 erased_byte; /* value of erased bytes */
|
|
|
|
u32 raw_cid[4]; /* raw card CID */
|
|
u32 raw_csd[4]; /* raw card CSD */
|
|
u32 raw_scr[2]; /* raw card SCR */
|
|
struct mmc_cid cid; /* card identification */
|
|
struct mmc_csd csd; /* card specific */
|
|
struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
|
|
struct sd_scr scr; /* extra SD information */
|
|
struct sd_ssr ssr; /* yet more SD information */
|
|
struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
|
|
|
|
unsigned int sdio_funcs; /* number of SDIO functions */
|
|
struct sdio_cccr cccr; /* common card info */
|
|
struct sdio_cis cis; /* common tuple info */
|
|
struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
|
|
unsigned num_info; /* number of info strings */
|
|
const char **info; /* info strings */
|
|
struct sdio_func_tuple *tuples; /* unknown common tuples */
|
|
|
|
struct dentry *debugfs_root;
|
|
};
|
|
|
|
void mmc_fixup_device(struct mmc_card *dev);
|
|
|
|
#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
|
|
#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
|
|
#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
|
|
|
|
#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
|
|
#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
|
|
#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
|
|
#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
|
|
#define mmc_card_ddr_mode(c) ((c)->state & MMC_STATE_HIGHSPEED_DDR)
|
|
|
|
#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
|
|
#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
|
|
#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
|
|
#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
|
|
#define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
|
|
|
|
static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
|
|
{
|
|
return c->quirks & MMC_QUIRK_LENIENT_FN0;
|
|
}
|
|
|
|
static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
|
|
{
|
|
return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
|
}
|
|
|
|
#define mmc_card_name(c) ((c)->cid.prod_name)
|
|
#define mmc_card_id(c) (dev_name(&(c)->dev))
|
|
|
|
#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev)
|
|
|
|
#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
|
|
#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
|
|
#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
|
|
|
|
/*
|
|
* MMC device driver (e.g., Flash card, I/O card...)
|
|
*/
|
|
struct mmc_driver {
|
|
struct device_driver drv;
|
|
int (*probe)(struct mmc_card *);
|
|
void (*remove)(struct mmc_card *);
|
|
int (*suspend)(struct mmc_card *, pm_message_t);
|
|
int (*resume)(struct mmc_card *);
|
|
};
|
|
|
|
extern int mmc_register_driver(struct mmc_driver *);
|
|
extern void mmc_unregister_driver(struct mmc_driver *);
|
|
|
|
#endif
|