Initial import

1 files changed, 531 insertions, 0 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
new file mode 100644
index 000000000..19f0175c0
--- /dev/null
+++ b/include/linux/mmc/card.h
@@ -0,0 +1,531 @@
+/*
+ *  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			raw_ext_csd_structure;	/* 194 */
+	u8			raw_card_type;		/* 196 */
+	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_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 */
+						/* 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 */
+
+	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 */
+	unsigned int		mmc_avail_type;	/* supported device type by both host and 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++;
+}
+
+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;
+
+	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 { NULL }
+
+#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_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;
+}
+
+#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 */