include/linux/mmc/card.h

Source file repositories/reference/linux-study-clean/include/linux/mmc/card.h

File Facts

System
Linux kernel
Corpus path
include/linux/mmc/card.h
Extension
.h
Size
13546 bytes
Lines
402
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

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		taac_clks;
	unsigned int		taac_ns;
	unsigned int		c_size;
	unsigned int		r2w_factor;
	unsigned int		max_dtr;
	unsigned int		erase_size;		/* In sectors */
	unsigned int		wp_grp_size;
	unsigned int		read_blkbits;
	unsigned int		write_blkbits;
	sector_t		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;
	bool			enhanced_rpmb_supported;
	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 */
	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 */
	bool			auto_bkops_en;	/* auto 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 */
	bool			cmdq_en;	/* Command Queue enabled */
	bool			cmdq_support;	/* Command Queue supported */
	unsigned int		cmdq_depth;	/* Command Queue depth */
#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 */

Annotation

Implementation Notes