/* * 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 #include #include 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; u8 cache_ctrl; u8 rst_n_function; unsigned int part_time; /* Units: ms */ unsigned int sa_timeout; /* Units: 100ns */ unsigned int generic_cmd6_time; /* Units: 10ms */ unsigned int power_off_longtime; /* Units: ms */ 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 cache_size; /* Units: KB */ bool hpi_en; /* HPI enablebit */ bool hpi; /* HPI support bit */ unsigned int hpi_cmd; /* cmd used as HPI */ unsigned int boot_ro_lock; /* ro lock support */ bool boot_ro_lockable; u8 raw_partition_support; /* 160 */ u8 raw_erased_mem_count; /* 181 */ u8 raw_ext_csd_structure; /* 194 */ u8 raw_card_type; /* 196 */ u8 out_of_int_time; /* 198 */ 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 */ unsigned int feature_support; #define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */ }; 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) }; 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 HIGH_SPEED_MAX_DTR 50000000 #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 HIGH_SPEED_BUS_SPEED 1 #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_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED) #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 /* The number of MMC physical partitions. These consist of: * boot partitions (2), general purpose partitions (4) in MMC v4.4. */ #define MMC_NUM_BOOT_PARTITION 2 #define MMC_NUM_GP_PARTITION 4 #define MMC_NUM_PHY_PARTITION 6 #define MAX_MMC_PART_NAME_LEN 20 /* * MMC Physical partitions */ struct mmc_part { unsigned int size; /* partition size (in bytes) */ unsigned int part_cfg; /* partition type */ char name[MAX_MMC_PART_NAME_LEN]; bool force_ro; /* to make boot parts RO by default */ unsigned int area_type; #define MMC_BLK_DATA_AREA_MAIN (1<<0) #define MMC_BLK_DATA_AREA_BOOT (1<<1) #define MMC_BLK_DATA_AREA_GP (1<<2) }; /* * 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_CARD_REMOVED (1<<7) /* card has been removed */ #define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 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 */ #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */ #define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */ /* byte mode */ unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */ #define MMC_NO_POWER_NOTIFICATION 0 #define MMC_POWERED_ON 1 #define MMC_POWEROFF_SHORT 2 #define MMC_POWEROFF_LONG 3 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; struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */ unsigned int nr_parts; }; /* * This function fill contents in mmc_part. */ static inline void mmc_part_add(struct mmc_card *card, unsigned int size, unsigned int part_cfg, char *name, int idx, bool ro, int area_type) { card->part[card->nr_parts].size = size; card->part[card->nr_parts].part_cfg = part_cfg; sprintf(card->part[card->nr_parts].name, name, idx); card->part[card->nr_parts].force_ro = ro; card->part[card->nr_parts].area_type = area_type; card->nr_parts++; } /* * 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_hs200(c) ((c)->state & MMC_STATE_HIGHSPEED_200) #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_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED) #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_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED)) #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_hs200(c) ((c)->state |= MMC_STATE_HIGHSPEED_200) #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_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED) #define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED) #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC) #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED) /* * 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; } static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c) { return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512; } static inline int mmc_card_long_read_time(const struct mmc_card *c) { return c->quirks & MMC_QUIRK_LONG_READ_TIME; } #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 *); extern void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table); #endif /* LINUX_MMC_CARD_H */