include/linux/mmc/card.h - kernel/msm-4.9 - Gitiles

 /*
  *  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/device.h>
 #include <linux/mmc/core.h>
 #include <linux/mod_devicetable.h>

 struct mmc_cid {
 	unsigned int		manfid;
 	char			prod_name[8];
 	unsigned char		prv;
 	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,
 				dsr_imp: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;
 	u8			max_packed_writes;
 	u8			max_packed_reads;
 	u8			packed_event_en;
 	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 */
 	u8			power_off_notification;	/* state */
 	unsigned int		hs_max_dtr;
 	unsigned int		hs200_max_dtr;
 #define MMC_HIGH_26_MAX_DTR	26000000
 #define MMC_HIGH_52_MAX_DTR	52000000
 #define MMC_HIGH_DDR_MAX_DTR	52000000
 #define MMC_HS200_MAX_DTR	200000000
 	unsigned int		sectors;
 	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			partition_setting_completed;	/* 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 */
 	bool			bkops;		/* background support bit */
 	bool			man_bkops_en;	/* manual bkops enable bit */
 	unsigned int            data_sector_size;       /* 512 bytes or 4KB */
 	unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
 	unsigned int		boot_ro_lock;		/* ro lock support */
 	bool			boot_ro_lockable;
 	bool			ffu_capable;	/* Firmware upgrade support */
 #define MMC_FIRMWARE_LEN 8
 	u8			fwrev[MMC_FIRMWARE_LEN];  /* FW version */
 	u8			raw_exception_status;	/* 54 */
 	u8			raw_partition_support;	/* 160 */
 	u8			raw_rpmb_size_mult;	/* 168 */
 	u8			raw_erased_mem_count;	/* 181 */
 	u8			strobe_support;		/* 184 */
 	u8			raw_ext_csd_structure;	/* 194 */
 	u8			raw_card_type;		/* 196 */
 	u8			raw_driver_strength;	/* 197 */
 	u8			out_of_int_time;	/* 198 */
 	u8			raw_pwr_cl_52_195;	/* 200 */
 	u8			raw_pwr_cl_26_195;	/* 201 */
 	u8			raw_pwr_cl_52_360;	/* 202 */
 	u8			raw_pwr_cl_26_360;	/* 203 */
 	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_pwr_cl_200_195;	/* 236 */
 	u8			raw_pwr_cl_200_360;	/* 237 */
 	u8			raw_pwr_cl_ddr_52_195;	/* 238 */
 	u8			raw_pwr_cl_ddr_52_360;	/* 239 */
 	u8			raw_pwr_cl_ddr_200_360;	/* 253 */
 	u8			raw_bkops_status;	/* 246 */
 	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_SET_CURRENT_NO_CHANGE	(-1)

 #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 mmc_ios;
 struct sdio_func;
 struct sdio_func_tuple;

 #define SDIO_MAX_FUNCS		7

 enum mmc_blk_status {
 	MMC_BLK_SUCCESS = 0,
 	MMC_BLK_PARTIAL,
 	MMC_BLK_CMD_ERR,
 	MMC_BLK_RETRY,
 	MMC_BLK_ABORT,
 	MMC_BLK_DATA_ERR,
 	MMC_BLK_ECC_ERR,
 	MMC_BLK_NOMEDIUM,
 	MMC_BLK_NEW_REQUEST,
 };

 /* The number of MMC physical partitions.  These consist of:
  * boot partitions (2), general purpose partitions (4) and
  * RPMB partition (1) in MMC v4.4.
  */
 #define MMC_NUM_BOOT_PARTITION	2
 #define MMC_NUM_GP_PARTITION	4
 #define MMC_NUM_PHY_PARTITION	7
 #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)
 #define MMC_BLK_DATA_AREA_RPMB	(1<<3)
 };

 /*
  * MMC device
  */
 struct mmc_card {
 	struct mmc_host		*host;		/* the host this device belongs to */
 	struct device		dev;		/* the device */
 	u32			ocr;		/* the current OCR setting */
 	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_BLOCKADDR	(1<<2)		/* card uses block-addressing */
 #define MMC_CARD_SDXC		(1<<3)		/* card is SDXC */
 #define MMC_CARD_REMOVED	(1<<4)		/* card has been removed */
 #define MMC_STATE_DOING_BKOPS	(1<<5)		/* card is doing BKOPS */
 #define MMC_STATE_SUSPENDED	(1<<6)		/* card is suspended */
 	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_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 */
 						/* byte mode */
 #define MMC_QUIRK_LONG_READ_TIME (1<<9)		/* Data read time > CSD says */
 #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10)	/* Skip secure for erase/trim */
 #define MMC_QUIRK_BROKEN_IRQ_POLLING	(1<<11)	/* Polling SDIO_CCCR_INTx could create a fake interrupt */
 #define MMC_QUIRK_TRIM_BROKEN	(1<<12)		/* Skip trim */
 #define MMC_QUIRK_BROKEN_HPI	(1<<13)		/* Disable broken HPI support */


 	unsigned int		erase_size;	/* erase size in sectors */
  	unsigned int		erase_shift;	/* if erase unit is power 2 */
  	unsigned int		pref_erase;	/* in sectors */
 	unsigned int		eg_boundary;	/* don't cross erase-group boundaries */
  	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 */
 	unsigned int		mmc_avail_type;	/* supported device type by both host and card */
 	unsigned int		drive_strength;	/* for UHS-I, HS200 or HS400 */

 	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++;
 }

 static inline bool mmc_large_sector(struct mmc_card *card)
 {
 	return card->ext_csd.data_sector_size == 4096;
 }

 /*
  *  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;

 	/* for MMC cards */
 	unsigned int ext_csd_rev;

 	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 EXT_CSD_REV_ANY (-1u)

 #define CID_MANFID_SANDISK      0x2
 #define CID_MANFID_TOSHIBA      0x11
 #define CID_MANFID_MICRON       0x13
 #define CID_MANFID_SAMSUNG      0x15
 #define CID_MANFID_KINGSTON     0x70
 #define CID_MANFID_HYNIX	0x90

 #define END_FIXUP { NULL }

 #define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,	\
 		   _cis_vendor, _cis_device,				\
 		   _fixup, _data, _ext_csd_rev)				\
 	{						   \
 		.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),			   \
 		.ext_csd_rev = (_ext_csd_rev),		   \
 	 }

 #define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,	\
 		      _fixup, _data, _ext_csd_rev)			\
 	_FIXUP_EXT(_name, _manfid,					\
 		   _oemid, _rev_start, _rev_end,			\
 		   SDIO_ANY_ID, SDIO_ANY_ID,				\
 		   _fixup, _data, _ext_csd_rev)				\

 #define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 	MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data,	\
 		      EXT_CSD_REV_ANY)

 #define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data,	\
 			      _ext_csd_rev)				\
 	MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data,	\
 		      _ext_csd_rev)

 #define SDIO_FIXUP(_vendor, _device, _fixup, _data)			\
 	_FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,			\
 		    CID_OEMID_ANY, 0, -1ull,				\
 		   _vendor, _device,					\
 		   _fixup, _data, EXT_CSD_REV_ANY)			\

 #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_blockaddr(c)	((c)->state & MMC_STATE_BLOCKADDR)
 #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_doing_bkops(c)	((c)->state & MMC_STATE_DOING_BKOPS)
 #define mmc_card_suspended(c)	((c)->state & MMC_STATE_SUSPENDED)

 #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_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 #define mmc_card_set_doing_bkops(c)	((c)->state |= MMC_STATE_DOING_BKOPS)
 #define mmc_card_clr_doing_bkops(c)	((c)->state &= ~MMC_STATE_DOING_BKOPS)
 #define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
 #define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)

 /*
  * 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;
 }

 static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
 {
 	return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
 }

 static inline int mmc_card_broken_hpi(const struct mmc_card *c)
 {
 	return c->quirks & MMC_QUIRK_BROKEN_HPI;
 }

 #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)

 /*
  * 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 *);
 	void (*shutdown)(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 */
	/*
	* 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/device.h>
	#include <linux/mmc/core.h>
	#include <linux/mod_devicetable.h>

	struct mmc_cid {
	unsigned int manfid;
	char prod_name[8];
	unsigned char prv;
	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,
	dsr_imp: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;
	u8 max_packed_writes;
	u8 max_packed_reads;
	u8 packed_event_en;
	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 */
	u8 power_off_notification; /* state */
	unsigned int hs_max_dtr;
	unsigned int hs200_max_dtr;
	#define MMC_HIGH_26_MAX_DTR 26000000
	#define MMC_HIGH_52_MAX_DTR 52000000
	#define MMC_HIGH_DDR_MAX_DTR 52000000
	#define MMC_HS200_MAX_DTR 200000000
	unsigned int sectors;
	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 partition_setting_completed; /* 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 */
	bool bkops; /* background support bit */
	bool man_bkops_en; /* manual bkops enable bit */
	unsigned int data_sector_size; /* 512 bytes or 4KB */
	unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
	unsigned int boot_ro_lock; /* ro lock support */
	bool boot_ro_lockable;
	bool ffu_capable; /* Firmware upgrade support */
	#define MMC_FIRMWARE_LEN 8
	u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */
	u8 raw_exception_status; /* 54 */
	u8 raw_partition_support; /* 160 */
	u8 raw_rpmb_size_mult; /* 168 */
	u8 raw_erased_mem_count; /* 181 */
	u8 strobe_support; /* 184 */
	u8 raw_ext_csd_structure; /* 194 */
	u8 raw_card_type; /* 196 */
	u8 raw_driver_strength; /* 197 */
	u8 out_of_int_time; /* 198 */
	u8 raw_pwr_cl_52_195; /* 200 */
	u8 raw_pwr_cl_26_195; /* 201 */
	u8 raw_pwr_cl_52_360; /* 202 */
	u8 raw_pwr_cl_26_360; /* 203 */
	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_pwr_cl_200_195; /* 236 */
	u8 raw_pwr_cl_200_360; /* 237 */
	u8 raw_pwr_cl_ddr_52_195; /* 238 */
	u8 raw_pwr_cl_ddr_52_360; /* 239 */
	u8 raw_pwr_cl_ddr_200_360; /* 253 */
	u8 raw_bkops_status; /* 246 */
	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_SET_CURRENT_NO_CHANGE (-1)

	#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 mmc_ios;
	struct sdio_func;
	struct sdio_func_tuple;

	#define SDIO_MAX_FUNCS 7

	enum mmc_blk_status {
	MMC_BLK_SUCCESS = 0,
	MMC_BLK_PARTIAL,
	MMC_BLK_CMD_ERR,
	MMC_BLK_RETRY,
	MMC_BLK_ABORT,
	MMC_BLK_DATA_ERR,
	MMC_BLK_ECC_ERR,
	MMC_BLK_NOMEDIUM,
	MMC_BLK_NEW_REQUEST,
	};

	/* The number of MMC physical partitions. These consist of:
	* boot partitions (2), general purpose partitions (4) and
	* RPMB partition (1) in MMC v4.4.
	*/
	#define MMC_NUM_BOOT_PARTITION 2
	#define MMC_NUM_GP_PARTITION 4
	#define MMC_NUM_PHY_PARTITION 7
	#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)
	#define MMC_BLK_DATA_AREA_RPMB (1<<3)
	};

	/*
	* MMC device
	*/
	struct mmc_card {
	struct mmc_host host; / the host this device belongs to */
	struct device dev; /* the device */
	u32 ocr; /* the current OCR setting */
	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_BLOCKADDR (1<<2) /* card uses block-addressing */
	#define MMC_CARD_SDXC (1<<3) /* card is SDXC */
	#define MMC_CARD_REMOVED (1<<4) /* card has been removed */
	#define MMC_STATE_DOING_BKOPS (1<<5) /* card is doing BKOPS */
	#define MMC_STATE_SUSPENDED (1<<6) /* card is suspended */
	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_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 */
	/* byte mode */
	#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */
	#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
	#define MMC_QUIRK_BROKEN_IRQ_POLLING (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
	#define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */
	#define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */


	unsigned int erase_size; /* erase size in sectors */
	unsigned int erase_shift; /* if erase unit is power 2 */
	unsigned int pref_erase; /* in sectors */
	unsigned int eg_boundary; /* don't cross erase-group boundaries */
	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 */
	unsigned int mmc_avail_type; /* supported device type by both host and card */
	unsigned int drive_strength; /* for UHS-I, HS200 or HS400 */

	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++;
	}

	static inline bool mmc_large_sector(struct mmc_card *card)
	{
	return card->ext_csd.data_sector_size == 4096;
	}

	/*
	* 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;

	/* for MMC cards */
	unsigned int ext_csd_rev;

	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 EXT_CSD_REV_ANY (-1u)

	#define CID_MANFID_SANDISK 0x2
	#define CID_MANFID_TOSHIBA 0x11
	#define CID_MANFID_MICRON 0x13
	#define CID_MANFID_SAMSUNG 0x15
	#define CID_MANFID_KINGSTON 0x70
	#define CID_MANFID_HYNIX 0x90

	#define END_FIXUP { NULL }

	#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \
	_cis_vendor, _cis_device, \
	_fixup, _data, _ext_csd_rev) \
	{ \
	.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), \
	.ext_csd_rev = (_ext_csd_rev), \
	}

	#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \
	_fixup, _data, _ext_csd_rev) \
	_FIXUP_EXT(_name, _manfid, \
	_oemid, _rev_start, _rev_end, \
	SDIO_ANY_ID, SDIO_ANY_ID, \
	_fixup, _data, _ext_csd_rev) \

	#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
	MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \
	EXT_CSD_REV_ANY)

	#define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data, \
	_ext_csd_rev) \
	MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \
	_ext_csd_rev)

	#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \
	_FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \
	CID_OEMID_ANY, 0, -1ull, \
	_vendor, _device, \
	_fixup, _data, EXT_CSD_REV_ANY) \

	#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_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
	#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_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
	#define mmc_card_suspended(c) ((c)->state & MMC_STATE_SUSPENDED)

	#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_blockaddr(c) ((c)->state \|= MMC_STATE_BLOCKADDR)
	#define mmc_card_set_ext_capacity(c) ((c)->state \|= MMC_CARD_SDXC)
	#define mmc_card_set_removed(c) ((c)->state \|= MMC_CARD_REMOVED)
	#define mmc_card_set_doing_bkops(c) ((c)->state \|= MMC_STATE_DOING_BKOPS)
	#define mmc_card_clr_doing_bkops(c) ((c)->state &= ~MMC_STATE_DOING_BKOPS)
	#define mmc_card_set_suspended(c) ((c)->state \|= MMC_STATE_SUSPENDED)
	#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)

	/*
	* 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;
	}

	static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
	{
	return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
	}

	static inline int mmc_card_broken_hpi(const struct mmc_card *c)
	{
	return c->quirks & MMC_QUIRK_BROKEN_HPI;
	}

	#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)

	/*
	* 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 );
	void (shutdown)(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 */