diff options
Diffstat (limited to 'include/linux/mmc/card.h')
| -rw-r--r-- | include/linux/mmc/card.h | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h new file mode 100644 index 00000000..b8ed8398 --- /dev/null +++ b/include/linux/mmc/card.h @@ -0,0 +1,414 @@ +/* + * 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> +#include <linux/mod_devicetable.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 c_size; + 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; + u8 rel_sectors; + u8 rel_param; + u8 part_config; + unsigned int part_time; /* Units: ms */ + 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 */ + unsigned int boot_size; /* in bytes */ + u8 raw_partition_support; /* 160 */ + u8 raw_erased_mem_count; /* 181 */ + u8 raw_ext_csd_structure; /* 194 */ + u8 raw_card_type; /* 196 */ + u8 raw_s_a_timeout; /* 217 */ + u8 raw_hc_erase_gap_size; /* 221 */ + u8 raw_erase_timeout_mult; /* 223 */ + u8 raw_hc_erase_grp_size; /* 224 */ + u8 raw_sec_trim_mult; /* 229 */ + u8 raw_sec_erase_mult; /* 230 */ + u8 raw_sec_feature_support;/* 231 */ + u8 raw_trim_mult; /* 232 */ + u8 raw_sectors[4]; /* 212 - 4 bytes */ +#define MMC_DDR_MODE_MASK (0x3<<2) + unsigned char boot_info; + unsigned char boot_config; + unsigned char boot_bus_width; +}; + +struct sd_scr { + unsigned char sda_vsn; + unsigned char sda_spec3; + unsigned char bus_widths; +#define SD_SCR_BUS_WIDTH_1 (1<<0) +#define SD_SCR_BUS_WIDTH_4 (1<<2) + unsigned char cmds; +#define SD_SCR_CMD20_SUPPORT (1<<0) +#define SD_SCR_CMD23_SUPPORT (1<<1) + unsigned char sda_vsn3; +}; + +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; + unsigned int uhs_max_dtr; +#define UHS_SDR104_MAX_DTR 208000000 +#define UHS_SDR50_MAX_DTR 100000000 +#define UHS_DDR50_MAX_DTR 50000000 +#define UHS_SDR25_MAX_DTR UHS_DDR50_MAX_DTR +#define UHS_SDR12_MAX_DTR 25000000 + unsigned int sd3_bus_mode; +#define UHS_SDR12_BUS_SPEED 0 +#define UHS_SDR25_BUS_SPEED 1 +#define UHS_SDR50_BUS_SPEED 2 +#define UHS_SDR104_BUS_SPEED 3 +#define UHS_DDR50_BUS_SPEED 4 + +#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED) +#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED) +#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED) +#define SD_MODE_UHS_SDR104 (1 << UHS_SDR104_BUS_SPEED) +#define SD_MODE_UHS_DDR50 (1 << UHS_DDR50_BUS_SPEED) + unsigned int sd3_drv_type; +#define SD_DRIVER_TYPE_B 0x01 +#define SD_DRIVER_TYPE_A 0x02 +#define SD_DRIVER_TYPE_C 0x04 +#define SD_DRIVER_TYPE_D 0x08 + unsigned int sd3_curr_limit; +#define SD_SET_CURRENT_LIMIT_200 0 +#define SD_SET_CURRENT_LIMIT_400 1 +#define SD_SET_CURRENT_LIMIT_600 2 +#define SD_SET_CURRENT_LIMIT_800 3 + +#define SD_MAX_CURRENT_200 (1 << SD_SET_CURRENT_LIMIT_200) +#define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) +#define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) +#define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) +}; + +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 */ +#define MMC_STATE_ULTRAHIGHSPEED (1<<5) /* card is in ultra high speed mode */ +#define MMC_CARD_SDXC (1<<6) /* card is SDXC */ +#define MMC_STATE_SD_SDR50 (1<<5) /* card is in sdr50 mode */ +#define MMC_STATE_SD_SDR104 (1<<6) /* card is in sdr104 mode */ +#define MMC_STATE_SD_DDR50 (1<<7) /* card is in ddr50 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 */ +#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4) /* SDIO card has nonstd function interfaces */ +#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */ +#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */ +#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */ + + 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) */ + struct sdio_func *sdio_single_irq; /* SDIO function when only one IRQ active */ + unsigned num_info; /* number of info strings */ + const char **info; /* info strings */ + struct sdio_func_tuple *tuples; /* unknown common tuples */ + + unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */ + + struct dentry *debugfs_root; +}; + +/* + * The world is not perfect and supplies us with broken mmc/sdio devices. + * For at least some of these bugs we need a work-around. + */ + +struct mmc_fixup { + /* CID-specific fields. */ + const char *name; + + /* Valid revision range */ + u64 rev_start, rev_end; + + unsigned int manfid; + unsigned short oemid; + + /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */ + u16 cis_vendor, cis_device; + + void (*vendor_fixup)(struct mmc_card *card, int data); + int data; +}; + +#define CID_MANFID_ANY (-1u) +#define CID_OEMID_ANY ((unsigned short) -1) +#define CID_NAME_ANY (NULL) + +#define END_FIXUP { 0 } + +#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _cis_vendor, _cis_device, \ + _fixup, _data) \ + { \ + .name = (_name), \ + .manfid = (_manfid), \ + .oemid = (_oemid), \ + .rev_start = (_rev_start), \ + .rev_end = (_rev_end), \ + .cis_vendor = (_cis_vendor), \ + .cis_device = (_cis_device), \ + .vendor_fixup = (_fixup), \ + .data = (_data), \ + } + +#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _fixup, _data) \ + _FIXUP_EXT(_name, _manfid, \ + _oemid, _rev_start, _rev_end, \ + SDIO_ANY_ID, SDIO_ANY_ID, \ + _fixup, _data) \ + +#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data) + +#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \ + _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \ + CID_OEMID_ANY, 0, -1ull, \ + _vendor, _device, \ + _fixup, _data) \ + +#define cid_rev(hwrev, fwrev, year, month) \ + (((u64) hwrev) << 40 | \ + ((u64) fwrev) << 32 | \ + ((u64) year) << 16 | \ + ((u64) month)) + +#define cid_rev_card(card) \ + cid_rev(card->cid.hwrev, \ + card->cid.fwrev, \ + card->cid.year, \ + card->cid.month) + +/* + * Unconditionally quirk add/remove. + */ + +static inline void __maybe_unused add_quirk(struct mmc_card *card, int data) +{ + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data) +{ + card->quirks &= ~data; +} + +#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_sd_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED) +#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC) + +#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) +#define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED) +#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC) + +/* + * Quirk add/remove for MMC products. + */ + +static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data) +{ + if (mmc_card_mmc(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card, + int data) +{ + if (mmc_card_mmc(card)) + card->quirks &= ~data; +} + +/* + * Quirk add/remove for SD products. + */ + +static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data) +{ + if (mmc_card_sd(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card, + int data) +{ + if (mmc_card_sd(card)) + card->quirks &= ~data; +} + +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; +} + +static inline int mmc_card_disable_cd(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_DISABLE_CD; +} + +static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF; +} + +#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 *); + int (*resume)(struct mmc_card *); +}; + +extern int mmc_register_driver(struct mmc_driver *); +extern void mmc_unregister_driver(struct mmc_driver *); + +extern void mmc_fixup_device(struct mmc_card *card, + const struct mmc_fixup *table); + +#endif |