[linux-block.git] / drivers / scsi / ufs / ufs.h

/*
 * Universal Flash Storage Host controller driver
 *
 * This code is based on drivers/scsi/ufs/ufs.h
 * Copyright (C) 2011-2013 Samsung India Software Operations
 *
 * Authors:
 *	Santosh Yaraganavi <santosh.sy@samsung.com>
 *	Vinayak Holikatti <h.vinayak@samsung.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * See the COPYING file in the top-level directory or visit
 * <http://www.gnu.org/licenses/gpl-2.0.html>
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * This program is provided "AS IS" and "WITH ALL FAULTS" and
 * without warranty of any kind. You are solely responsible for
 * determining the appropriateness of using and distributing
 * the program and assume all risks associated with your exercise
 * of rights with respect to the program, including but not limited
 * to infringement of third party rights, the risks and costs of
 * program errors, damage to or loss of data, programs or equipment,
 * and unavailability or interruption of operations. Under no
 * circumstances will the contributor of this Program be liable for
 * any damages of any kind arising from your use or distribution of
 * this program.
 */

#ifndef _UFS_H
#define _UFS_H

#include <linux/mutex.h>
#include <linux/types.h>
#include <uapi/scsi/scsi_bsg_ufs.h>

#define GENERAL_UPIU_REQUEST_SIZE (sizeof(struct utp_upiu_req))
#define QUERY_DESC_MAX_SIZE       255
#define QUERY_DESC_MIN_SIZE       2
#define QUERY_DESC_HDR_SIZE       2
#define QUERY_OSF_SIZE            (GENERAL_UPIU_REQUEST_SIZE - \
					(sizeof(struct utp_upiu_header)))
#define UFS_SENSE_SIZE	18

#define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\
			cpu_to_be32((byte3 << 24) | (byte2 << 16) |\
			 (byte1 << 8) | (byte0))
/*
 * UFS device may have standard LUs and LUN id could be from 0x00 to
 * 0x7F. Standard LUs use "Peripheral Device Addressing Format".
 * UFS device may also have the Well Known LUs (also referred as W-LU)
 * which again could be from 0x00 to 0x7F. For W-LUs, device only use
 * the "Extended Addressing Format" which means the W-LUNs would be
 * from 0xc100 (SCSI_W_LUN_BASE) onwards.
 * This means max. LUN number reported from UFS device could be 0xC17F.
 */
#define UFS_UPIU_MAX_UNIT_NUM_ID	0x7F
#define UFS_MAX_LUNS		(SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID)
#define UFS_UPIU_WLUN_ID	(1 << 7)
#define UFS_RPMB_UNIT		0xC4

/* WriteBooster buffer is available only for the logical unit from 0 to 7 */
#define UFS_UPIU_MAX_WB_LUN_ID	8

/* Well known logical unit id in LUN field of UPIU */
enum {
	UFS_UPIU_REPORT_LUNS_WLUN	= 0x81,
	UFS_UPIU_UFS_DEVICE_WLUN	= 0xD0,
	UFS_UPIU_BOOT_WLUN		= 0xB0,
	UFS_UPIU_RPMB_WLUN		= 0xC4,
};

/*
 * UFS Protocol Information Unit related definitions
 */

/* Task management functions */
enum {
	UFS_ABORT_TASK		= 0x01,
	UFS_ABORT_TASK_SET	= 0x02,
	UFS_CLEAR_TASK_SET	= 0x04,
	UFS_LOGICAL_RESET	= 0x08,
	UFS_QUERY_TASK		= 0x80,
	UFS_QUERY_TASK_SET	= 0x81,
};

/* UTP UPIU Transaction Codes Initiator to Target */
enum {
	UPIU_TRANSACTION_NOP_OUT	= 0x00,
	UPIU_TRANSACTION_COMMAND	= 0x01,
	UPIU_TRANSACTION_DATA_OUT	= 0x02,
	UPIU_TRANSACTION_TASK_REQ	= 0x04,
	UPIU_TRANSACTION_QUERY_REQ	= 0x16,
};

/* UTP UPIU Transaction Codes Target to Initiator */
enum {
	UPIU_TRANSACTION_NOP_IN		= 0x20,
	UPIU_TRANSACTION_RESPONSE	= 0x21,
	UPIU_TRANSACTION_DATA_IN	= 0x22,
	UPIU_TRANSACTION_TASK_RSP	= 0x24,
	UPIU_TRANSACTION_READY_XFER	= 0x31,
	UPIU_TRANSACTION_QUERY_RSP	= 0x36,
	UPIU_TRANSACTION_REJECT_UPIU	= 0x3F,
};

/* UPIU Read/Write flags */
enum {
	UPIU_CMD_FLAGS_NONE	= 0x00,
	UPIU_CMD_FLAGS_WRITE	= 0x20,
	UPIU_CMD_FLAGS_READ	= 0x40,
};

/* UPIU Task Attributes */
enum {
	UPIU_TASK_ATTR_SIMPLE	= 0x00,
	UPIU_TASK_ATTR_ORDERED	= 0x01,
	UPIU_TASK_ATTR_HEADQ	= 0x02,
	UPIU_TASK_ATTR_ACA	= 0x03,
};

/* UPIU Query request function */
enum {
	UPIU_QUERY_FUNC_STANDARD_READ_REQUEST           = 0x01,
	UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST          = 0x81,
};

/* Flag idn for Query Requests*/
enum flag_idn {
	QUERY_FLAG_IDN_FDEVICEINIT			= 0x01,
	QUERY_FLAG_IDN_PERMANENT_WPE			= 0x02,
	QUERY_FLAG_IDN_PWR_ON_WPE			= 0x03,
	QUERY_FLAG_IDN_BKOPS_EN				= 0x04,
	QUERY_FLAG_IDN_LIFE_SPAN_MODE_ENABLE		= 0x05,
	QUERY_FLAG_IDN_PURGE_ENABLE			= 0x06,
	QUERY_FLAG_IDN_RESERVED2			= 0x07,
	QUERY_FLAG_IDN_FPHYRESOURCEREMOVAL		= 0x08,
	QUERY_FLAG_IDN_BUSY_RTC				= 0x09,
	QUERY_FLAG_IDN_RESERVED3			= 0x0A,
	QUERY_FLAG_IDN_PERMANENTLY_DISABLE_FW_UPDATE	= 0x0B,
	QUERY_FLAG_IDN_WB_EN                            = 0x0E,
	QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN                 = 0x0F,
	QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8     = 0x10,
};

/* Attribute idn for Query requests */
enum attr_idn {
	QUERY_ATTR_IDN_BOOT_LU_EN		= 0x00,
	QUERY_ATTR_IDN_RESERVED			= 0x01,
	QUERY_ATTR_IDN_POWER_MODE		= 0x02,
	QUERY_ATTR_IDN_ACTIVE_ICC_LVL		= 0x03,
	QUERY_ATTR_IDN_OOO_DATA_EN		= 0x04,
	QUERY_ATTR_IDN_BKOPS_STATUS		= 0x05,
	QUERY_ATTR_IDN_PURGE_STATUS		= 0x06,
	QUERY_ATTR_IDN_MAX_DATA_IN		= 0x07,
	QUERY_ATTR_IDN_MAX_DATA_OUT		= 0x08,
	QUERY_ATTR_IDN_DYN_CAP_NEEDED		= 0x09,
	QUERY_ATTR_IDN_REF_CLK_FREQ		= 0x0A,
	QUERY_ATTR_IDN_CONF_DESC_LOCK		= 0x0B,
	QUERY_ATTR_IDN_MAX_NUM_OF_RTT		= 0x0C,
	QUERY_ATTR_IDN_EE_CONTROL		= 0x0D,
	QUERY_ATTR_IDN_EE_STATUS		= 0x0E,
	QUERY_ATTR_IDN_SECONDS_PASSED		= 0x0F,
	QUERY_ATTR_IDN_CNTX_CONF		= 0x10,
	QUERY_ATTR_IDN_CORR_PRG_BLK_NUM		= 0x11,
	QUERY_ATTR_IDN_RESERVED2		= 0x12,
	QUERY_ATTR_IDN_RESERVED3		= 0x13,
	QUERY_ATTR_IDN_FFU_STATUS		= 0x14,
	QUERY_ATTR_IDN_PSA_STATE		= 0x15,
	QUERY_ATTR_IDN_PSA_DATA_SIZE		= 0x16,
	QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME	= 0x17,
	QUERY_ATTR_IDN_WB_FLUSH_STATUS	        = 0x1C,
	QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE       = 0x1D,
	QUERY_ATTR_IDN_WB_BUFF_LIFE_TIME_EST    = 0x1E,
	QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE        = 0x1F,
};

/* Descriptor idn for Query requests */
enum desc_idn {
	QUERY_DESC_IDN_DEVICE		= 0x0,
	QUERY_DESC_IDN_CONFIGURATION	= 0x1,
	QUERY_DESC_IDN_UNIT		= 0x2,
	QUERY_DESC_IDN_RFU_0		= 0x3,
	QUERY_DESC_IDN_INTERCONNECT	= 0x4,
	QUERY_DESC_IDN_STRING		= 0x5,
	QUERY_DESC_IDN_RFU_1		= 0x6,
	QUERY_DESC_IDN_GEOMETRY		= 0x7,
	QUERY_DESC_IDN_POWER		= 0x8,
	QUERY_DESC_IDN_HEALTH           = 0x9,
	QUERY_DESC_IDN_MAX,
};

enum desc_header_offset {
	QUERY_DESC_LENGTH_OFFSET	= 0x00,
	QUERY_DESC_DESC_TYPE_OFFSET	= 0x01,
};

/* Unit descriptor parameters offsets in bytes*/
enum unit_desc_param {
	UNIT_DESC_PARAM_LEN			= 0x0,
	UNIT_DESC_PARAM_TYPE			= 0x1,
	UNIT_DESC_PARAM_UNIT_INDEX		= 0x2,
	UNIT_DESC_PARAM_LU_ENABLE		= 0x3,
	UNIT_DESC_PARAM_BOOT_LUN_ID		= 0x4,
	UNIT_DESC_PARAM_LU_WR_PROTECT		= 0x5,
	UNIT_DESC_PARAM_LU_Q_DEPTH		= 0x6,
	UNIT_DESC_PARAM_PSA_SENSITIVE		= 0x7,
	UNIT_DESC_PARAM_MEM_TYPE		= 0x8,
	UNIT_DESC_PARAM_DATA_RELIABILITY	= 0x9,
	UNIT_DESC_PARAM_LOGICAL_BLK_SIZE	= 0xA,
	UNIT_DESC_PARAM_LOGICAL_BLK_COUNT	= 0xB,
	UNIT_DESC_PARAM_ERASE_BLK_SIZE		= 0x13,
	UNIT_DESC_PARAM_PROVISIONING_TYPE	= 0x17,
	UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT	= 0x18,
	UNIT_DESC_PARAM_CTX_CAPABILITIES	= 0x20,
	UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1	= 0x22,
	UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS	= 0x29,
};

/* Device descriptor parameters offsets in bytes*/
enum device_desc_param {
	DEVICE_DESC_PARAM_LEN			= 0x0,
	DEVICE_DESC_PARAM_TYPE			= 0x1,
	DEVICE_DESC_PARAM_DEVICE_TYPE		= 0x2,
	DEVICE_DESC_PARAM_DEVICE_CLASS		= 0x3,
	DEVICE_DESC_PARAM_DEVICE_SUB_CLASS	= 0x4,
	DEVICE_DESC_PARAM_PRTCL			= 0x5,
	DEVICE_DESC_PARAM_NUM_LU		= 0x6,
	DEVICE_DESC_PARAM_NUM_WLU		= 0x7,
	DEVICE_DESC_PARAM_BOOT_ENBL		= 0x8,
	DEVICE_DESC_PARAM_DESC_ACCSS_ENBL	= 0x9,
	DEVICE_DESC_PARAM_INIT_PWR_MODE		= 0xA,
	DEVICE_DESC_PARAM_HIGH_PR_LUN		= 0xB,
	DEVICE_DESC_PARAM_SEC_RMV_TYPE		= 0xC,
	DEVICE_DESC_PARAM_SEC_LU		= 0xD,
	DEVICE_DESC_PARAM_BKOP_TERM_LT		= 0xE,
	DEVICE_DESC_PARAM_ACTVE_ICC_LVL		= 0xF,
	DEVICE_DESC_PARAM_SPEC_VER		= 0x10,
	DEVICE_DESC_PARAM_MANF_DATE		= 0x12,
	DEVICE_DESC_PARAM_MANF_NAME		= 0x14,
	DEVICE_DESC_PARAM_PRDCT_NAME		= 0x15,
	DEVICE_DESC_PARAM_SN			= 0x16,
	DEVICE_DESC_PARAM_OEM_ID		= 0x17,
	DEVICE_DESC_PARAM_MANF_ID		= 0x18,
	DEVICE_DESC_PARAM_UD_OFFSET		= 0x1A,
	DEVICE_DESC_PARAM_UD_LEN		= 0x1B,
	DEVICE_DESC_PARAM_RTT_CAP		= 0x1C,
	DEVICE_DESC_PARAM_FRQ_RTC		= 0x1D,
	DEVICE_DESC_PARAM_UFS_FEAT		= 0x1F,
	DEVICE_DESC_PARAM_FFU_TMT		= 0x20,
	DEVICE_DESC_PARAM_Q_DPTH		= 0x21,
	DEVICE_DESC_PARAM_DEV_VER		= 0x22,
	DEVICE_DESC_PARAM_NUM_SEC_WPA		= 0x24,
	DEVICE_DESC_PARAM_PSA_MAX_DATA		= 0x25,
	DEVICE_DESC_PARAM_PSA_TMT		= 0x29,
	DEVICE_DESC_PARAM_PRDCT_REV		= 0x2A,
	DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP	= 0x4F,
	DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN	= 0x53,
	DEVICE_DESC_PARAM_WB_TYPE		= 0x54,
	DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS = 0x55,
};

/* Interconnect descriptor parameters offsets in bytes*/
enum interconnect_desc_param {
	INTERCONNECT_DESC_PARAM_LEN		= 0x0,
	INTERCONNECT_DESC_PARAM_TYPE		= 0x1,
	INTERCONNECT_DESC_PARAM_UNIPRO_VER	= 0x2,
	INTERCONNECT_DESC_PARAM_MPHY_VER	= 0x4,
};

/* Geometry descriptor parameters offsets in bytes*/
enum geometry_desc_param {
	GEOMETRY_DESC_PARAM_LEN			= 0x0,
	GEOMETRY_DESC_PARAM_TYPE		= 0x1,
	GEOMETRY_DESC_PARAM_DEV_CAP		= 0x4,
	GEOMETRY_DESC_PARAM_MAX_NUM_LUN		= 0xC,
	GEOMETRY_DESC_PARAM_SEG_SIZE		= 0xD,
	GEOMETRY_DESC_PARAM_ALLOC_UNIT_SIZE	= 0x11,
	GEOMETRY_DESC_PARAM_MIN_BLK_SIZE	= 0x12,
	GEOMETRY_DESC_PARAM_OPT_RD_BLK_SIZE	= 0x13,
	GEOMETRY_DESC_PARAM_OPT_WR_BLK_SIZE	= 0x14,
	GEOMETRY_DESC_PARAM_MAX_IN_BUF_SIZE	= 0x15,
	GEOMETRY_DESC_PARAM_MAX_OUT_BUF_SIZE	= 0x16,
	GEOMETRY_DESC_PARAM_RPMB_RW_SIZE	= 0x17,
	GEOMETRY_DESC_PARAM_DYN_CAP_RSRC_PLC	= 0x18,
	GEOMETRY_DESC_PARAM_DATA_ORDER		= 0x19,
	GEOMETRY_DESC_PARAM_MAX_NUM_CTX		= 0x1A,
	GEOMETRY_DESC_PARAM_TAG_UNIT_SIZE	= 0x1B,
	GEOMETRY_DESC_PARAM_TAG_RSRC_SIZE	= 0x1C,
	GEOMETRY_DESC_PARAM_SEC_RM_TYPES	= 0x1D,
	GEOMETRY_DESC_PARAM_MEM_TYPES		= 0x1E,
	GEOMETRY_DESC_PARAM_SCM_MAX_NUM_UNITS	= 0x20,
	GEOMETRY_DESC_PARAM_SCM_CAP_ADJ_FCTR	= 0x24,
	GEOMETRY_DESC_PARAM_NPM_MAX_NUM_UNITS	= 0x26,
	GEOMETRY_DESC_PARAM_NPM_CAP_ADJ_FCTR	= 0x2A,
	GEOMETRY_DESC_PARAM_ENM1_MAX_NUM_UNITS	= 0x2C,
	GEOMETRY_DESC_PARAM_ENM1_CAP_ADJ_FCTR	= 0x30,
	GEOMETRY_DESC_PARAM_ENM2_MAX_NUM_UNITS	= 0x32,
	GEOMETRY_DESC_PARAM_ENM2_CAP_ADJ_FCTR	= 0x36,
	GEOMETRY_DESC_PARAM_ENM3_MAX_NUM_UNITS	= 0x38,
	GEOMETRY_DESC_PARAM_ENM3_CAP_ADJ_FCTR	= 0x3C,
	GEOMETRY_DESC_PARAM_ENM4_MAX_NUM_UNITS	= 0x3E,
	GEOMETRY_DESC_PARAM_ENM4_CAP_ADJ_FCTR	= 0x42,
	GEOMETRY_DESC_PARAM_OPT_LOG_BLK_SIZE	= 0x44,
	GEOMETRY_DESC_PARAM_WB_MAX_ALLOC_UNITS	= 0x4F,
	GEOMETRY_DESC_PARAM_WB_MAX_WB_LUNS	= 0x53,
	GEOMETRY_DESC_PARAM_WB_BUFF_CAP_ADJ	= 0x54,
	GEOMETRY_DESC_PARAM_WB_SUP_RED_TYPE	= 0x55,
	GEOMETRY_DESC_PARAM_WB_SUP_WB_TYPE	= 0x56,
};

/* Health descriptor parameters offsets in bytes*/
enum health_desc_param {
	HEALTH_DESC_PARAM_LEN			= 0x0,
	HEALTH_DESC_PARAM_TYPE			= 0x1,
	HEALTH_DESC_PARAM_EOL_INFO		= 0x2,
	HEALTH_DESC_PARAM_LIFE_TIME_EST_A	= 0x3,
	HEALTH_DESC_PARAM_LIFE_TIME_EST_B	= 0x4,
};

/* WriteBooster buffer mode */
enum {
	WB_BUF_MODE_LU_DEDICATED	= 0x0,
	WB_BUF_MODE_SHARED		= 0x1,
};

/*
 * Logical Unit Write Protect
 * 00h: LU not write protected
 * 01h: LU write protected when fPowerOnWPEn =1
 * 02h: LU permanently write protected when fPermanentWPEn =1
 */
enum ufs_lu_wp_type {
	UFS_LU_NO_WP		= 0x00,
	UFS_LU_POWER_ON_WP	= 0x01,
	UFS_LU_PERM_WP		= 0x02,
};

/* bActiveICCLevel parameter current units */
enum {
	UFSHCD_NANO_AMP		= 0,
	UFSHCD_MICRO_AMP	= 1,
	UFSHCD_MILI_AMP		= 2,
	UFSHCD_AMP		= 3,
};

/* Possible values for dExtendedUFSFeaturesSupport */
enum {
	UFS_DEV_WRITE_BOOSTER_SUP	= BIT(8),
};

#define POWER_DESC_MAX_SIZE			0x62
#define POWER_DESC_MAX_ACTV_ICC_LVLS		16

/* Attribute  bActiveICCLevel parameter bit masks definitions */
#define ATTR_ICC_LVL_UNIT_OFFSET	14
#define ATTR_ICC_LVL_UNIT_MASK		(0x3 << ATTR_ICC_LVL_UNIT_OFFSET)
#define ATTR_ICC_LVL_VALUE_MASK		0x3FF

/* Power descriptor parameters offsets in bytes */
enum power_desc_param_offset {
	PWR_DESC_LEN			= 0x0,
	PWR_DESC_TYPE			= 0x1,
	PWR_DESC_ACTIVE_LVLS_VCC_0	= 0x2,
	PWR_DESC_ACTIVE_LVLS_VCCQ_0	= 0x22,
	PWR_DESC_ACTIVE_LVLS_VCCQ2_0	= 0x42,
};

/* Exception event mask values */
enum {
	MASK_EE_STATUS		= 0xFFFF,
	MASK_EE_URGENT_BKOPS	= (1 << 2),
};

/* Background operation status */
enum bkops_status {
	BKOPS_STATUS_NO_OP               = 0x0,
	BKOPS_STATUS_NON_CRITICAL        = 0x1,
	BKOPS_STATUS_PERF_IMPACT         = 0x2,
	BKOPS_STATUS_CRITICAL            = 0x3,
	BKOPS_STATUS_MAX		 = BKOPS_STATUS_CRITICAL,
};

/* UTP QUERY Transaction Specific Fields OpCode */
enum query_opcode {
	UPIU_QUERY_OPCODE_NOP		= 0x0,
	UPIU_QUERY_OPCODE_READ_DESC	= 0x1,
	UPIU_QUERY_OPCODE_WRITE_DESC	= 0x2,
	UPIU_QUERY_OPCODE_READ_ATTR	= 0x3,
	UPIU_QUERY_OPCODE_WRITE_ATTR	= 0x4,
	UPIU_QUERY_OPCODE_READ_FLAG	= 0x5,
	UPIU_QUERY_OPCODE_SET_FLAG	= 0x6,
	UPIU_QUERY_OPCODE_CLEAR_FLAG	= 0x7,
	UPIU_QUERY_OPCODE_TOGGLE_FLAG	= 0x8,
};

/* bRefClkFreq attribute values */
enum ufs_ref_clk_freq {
	REF_CLK_FREQ_19_2_MHZ	= 0,
	REF_CLK_FREQ_26_MHZ	= 1,
	REF_CLK_FREQ_38_4_MHZ	= 2,
	REF_CLK_FREQ_52_MHZ	= 3,
	REF_CLK_FREQ_INVAL	= -1,
};

struct ufs_ref_clk {
	unsigned long freq_hz;
	enum ufs_ref_clk_freq val;
};

/* Query response result code */
enum {
	QUERY_RESULT_SUCCESS                    = 0x00,
	QUERY_RESULT_NOT_READABLE               = 0xF6,
	QUERY_RESULT_NOT_WRITEABLE              = 0xF7,
	QUERY_RESULT_ALREADY_WRITTEN            = 0xF8,
	QUERY_RESULT_INVALID_LENGTH             = 0xF9,
	QUERY_RESULT_INVALID_VALUE              = 0xFA,
	QUERY_RESULT_INVALID_SELECTOR           = 0xFB,
	QUERY_RESULT_INVALID_INDEX              = 0xFC,
	QUERY_RESULT_INVALID_IDN                = 0xFD,
	QUERY_RESULT_INVALID_OPCODE             = 0xFE,
	QUERY_RESULT_GENERAL_FAILURE            = 0xFF,
};

/* UTP Transfer Request Command Type (CT) */
enum {
	UPIU_COMMAND_SET_TYPE_SCSI	= 0x0,
	UPIU_COMMAND_SET_TYPE_UFS	= 0x1,
	UPIU_COMMAND_SET_TYPE_QUERY	= 0x2,
};

/* UTP Transfer Request Command Offset */
#define UPIU_COMMAND_TYPE_OFFSET	28

/* Offset of the response code in the UPIU header */
#define UPIU_RSP_CODE_OFFSET		8

enum {
	MASK_SCSI_STATUS		= 0xFF,
	MASK_TASK_RESPONSE              = 0xFF00,
	MASK_RSP_UPIU_RESULT            = 0xFFFF,
	MASK_QUERY_DATA_SEG_LEN         = 0xFFFF,
	MASK_RSP_UPIU_DATA_SEG_LEN	= 0xFFFF,
	MASK_RSP_EXCEPTION_EVENT        = 0x10000,
	MASK_TM_SERVICE_RESP		= 0xFF,
	MASK_TM_FUNC			= 0xFF,
};

/* Task management service response */
enum {
	UPIU_TASK_MANAGEMENT_FUNC_COMPL		= 0x00,
	UPIU_TASK_MANAGEMENT_FUNC_NOT_SUPPORTED = 0x04,
	UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED	= 0x08,
	UPIU_TASK_MANAGEMENT_FUNC_FAILED	= 0x05,
	UPIU_INCORRECT_LOGICAL_UNIT_NO		= 0x09,
};

/* UFS device power modes */
enum ufs_dev_pwr_mode {
	UFS_ACTIVE_PWR_MODE	= 1,
	UFS_SLEEP_PWR_MODE	= 2,
	UFS_POWERDOWN_PWR_MODE	= 3,
};

#define UFS_WB_BUF_REMAIN_PERCENT(val) ((val) / 10)

/**
 * struct utp_cmd_rsp - Response UPIU structure
 * @residual_transfer_count: Residual transfer count DW-3
 * @reserved: Reserved double words DW-4 to DW-7
 * @sense_data_len: Sense data length DW-8 U16
 * @sense_data: Sense data field DW-8 to DW-12
 */
struct utp_cmd_rsp {
	__be32 residual_transfer_count;
	__be32 reserved[4];
	__be16 sense_data_len;
	u8 sense_data[UFS_SENSE_SIZE];
};

/**
 * struct utp_upiu_rsp - general upiu response structure
 * @header: UPIU header structure DW-0 to DW-2
 * @sr: fields structure for scsi command DW-3 to DW-12
 * @qr: fields structure for query request DW-3 to DW-7
 */
struct utp_upiu_rsp {
	struct utp_upiu_header header;
	union {
		struct utp_cmd_rsp sr;
		struct utp_upiu_query qr;
	};
};

/**
 * struct ufs_query_req - parameters for building a query request
 * @query_func: UPIU header query function
 * @upiu_req: the query request data
 */
struct ufs_query_req {
	u8 query_func;
	struct utp_upiu_query upiu_req;
};

/**
 * struct ufs_query_resp - UPIU QUERY
 * @response: device response code
 * @upiu_res: query response data
 */
struct ufs_query_res {
	u8 response;
	struct utp_upiu_query upiu_res;
};

#define UFS_VREG_VCC_MIN_UV	   2700000 /* uV */
#define UFS_VREG_VCC_MAX_UV	   3600000 /* uV */
#define UFS_VREG_VCC_1P8_MIN_UV    1700000 /* uV */
#define UFS_VREG_VCC_1P8_MAX_UV    1950000 /* uV */
#define UFS_VREG_VCCQ_MIN_UV	   1140000 /* uV */
#define UFS_VREG_VCCQ_MAX_UV	   1260000 /* uV */
#define UFS_VREG_VCCQ2_MIN_UV	   1700000 /* uV */
#define UFS_VREG_VCCQ2_MAX_UV	   1950000 /* uV */

/*
 * VCCQ & VCCQ2 current requirement when UFS device is in sleep state
 * and link is in Hibern8 state.
 */
#define UFS_VREG_LPM_LOAD_UA	1000 /* uA */

struct ufs_vreg {
	struct regulator *reg;
	const char *name;
	bool enabled;
	int min_uV;
	int max_uV;
	int max_uA;
};

struct ufs_vreg_info {
	struct ufs_vreg *vcc;
	struct ufs_vreg *vccq;
	struct ufs_vreg *vccq2;
	struct ufs_vreg *vdd_hba;
};

struct ufs_dev_info {
	bool f_power_on_wp_en;
	/* Keeps information if any of the LU is power on write protected */
	bool is_lu_power_on_wp;
	/* Maximum number of general LU supported by the UFS device */
	u8 max_lu_supported;
	u8 wb_dedicated_lu;
	u16 wmanufacturerid;
	/*UFS device Product Name */
	u8 *model;
	u16 wspecversion;
	u32 clk_gating_wait_us;
	u32 d_ext_ufs_feature_sup;
	u8 b_wb_buffer_type;
	u32 d_wb_alloc_units;
	bool b_rpm_dev_flush_capable;
	u8 b_presrv_uspc_en;
};

/**
 * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
 * @dev_info: pointer of instance of struct ufs_dev_info
 * @lun: LU number to check
 * @return: true if the lun has a matching unit descriptor, false otherwise
 */
static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info,
		u8 lun)
{
	if (!dev_info || !dev_info->max_lu_supported) {
		pr_err("Max General LU supported by UFS isn't initialized\n");
		return false;
	}

	return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported);
}

#endif /* End of Header */
Commit	Line	Data
7a3e97b0 SY	1	/*
	2	* Universal Flash Storage Host controller driver
	3	*
	4	* This code is based on drivers/scsi/ufs/ufs.h
3b1d0580	5	* Copyright (C) 2011-2013 Samsung India Software Operations
7a3e97b0	6	*
3b1d0580 VH	7	* Authors:
	8	* Santosh Yaraganavi <santosh.sy@samsung.com>
	9	* Vinayak Holikatti <h.vinayak@samsung.com>
7a3e97b0 SY	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* as published by the Free Software Foundation; either version 2
	14	* of the License, or (at your option) any later version.
3b1d0580 VH	15	* See the COPYING file in the top-level directory or visit
3b1d0580 VH	16	* <http://www.gnu.org/licenses/gpl-2.0.html>
7a3e97b0 SY	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
3b1d0580 VH	23	* This program is provided "AS IS" and "WITH ALL FAULTS" and
	24	* without warranty of any kind. You are solely responsible for
	25	* determining the appropriateness of using and distributing
	26	* the program and assume all risks associated with your exercise
	27	* of rights with respect to the program, including but not limited
	28	* to infringement of third party rights, the risks and costs of
	29	* program errors, damage to or loss of data, programs or equipment,
	30	* and unavailability or interruption of operations. Under no
	31	* circumstances will the contributor of this Program be liable for
	32	* any damages of any kind arising from your use or distribution of
	33	* this program.
7a3e97b0 SY	34	*/
	35
	36	#ifndef _UFS_H
	37	#define _UFS_H
	38
5a0b0cb9 SRT	39	#include <linux/mutex.h>
5a0b0cb9 SRT	40	#include <linux/types.h>
a851b2bd	41	#include <uapi/scsi/scsi_bsg_ufs.h>
5a0b0cb9	42
220d17a6	43	#define GENERAL_UPIU_REQUEST_SIZE (sizeof(struct utp_upiu_req))
d44a5f98 DR	44	#define QUERY_DESC_MAX_SIZE 255
d44a5f98 DR	45	#define QUERY_DESC_MIN_SIZE 2
b573d484	46	#define QUERY_DESC_HDR_SIZE 2
68078d5c DR	47	#define QUERY_OSF_SIZE (GENERAL_UPIU_REQUEST_SIZE - \
68078d5c DR	48	(sizeof(struct utp_upiu_header)))
09a5a24f	49	#define UFS_SENSE_SIZE 18
7a3e97b0 SY	50
7a3e97b0 SY	51	#define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\
5a0b0cb9	52	cpu_to_be32((byte3 << 24) \| (byte2 << 16) \|\
7a3e97b0	53	(byte1 << 8) \| (byte0))
0ce147d4 SJ	54	/*
	55	* UFS device may have standard LUs and LUN id could be from 0x00 to
	56	* 0x7F. Standard LUs use "Peripheral Device Addressing Format".
	57	* UFS device may also have the Well Known LUs (also referred as W-LU)
	58	* which again could be from 0x00 to 0x7F. For W-LUs, device only use
	59	* the "Extended Addressing Format" which means the W-LUNs would be
	60	* from 0xc100 (SCSI_W_LUN_BASE) onwards.
	61	* This means max. LUN number reported from UFS device could be 0xC17F.
	62	*/
	63	#define UFS_UPIU_MAX_UNIT_NUM_ID 0x7F
	64	#define UFS_MAX_LUNS (SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID)
	65	#define UFS_UPIU_WLUN_ID (1 << 7)
72fb690e	66	#define UFS_RPMB_UNIT 0xC4
da461cec	67
6f8d5a6a SC	68	/* WriteBooster buffer is available only for the logical unit from 0 to 7 */
	69	#define UFS_UPIU_MAX_WB_LUN_ID 8
	70
0ce147d4 SJ	71	/* Well known logical unit id in LUN field of UPIU */
	72	enum {
	73	UFS_UPIU_REPORT_LUNS_WLUN = 0x81,
	74	UFS_UPIU_UFS_DEVICE_WLUN = 0xD0,
	75	UFS_UPIU_BOOT_WLUN = 0xB0,
	76	UFS_UPIU_RPMB_WLUN = 0xC4,
	77	};
	78
7a3e97b0 SY	79	/*
	80	* UFS Protocol Information Unit related definitions
	81	*/
	82
	83	/* Task management functions */
	84	enum {
	85	UFS_ABORT_TASK = 0x01,
	86	UFS_ABORT_TASK_SET = 0x02,
	87	UFS_CLEAR_TASK_SET = 0x04,
	88	UFS_LOGICAL_RESET = 0x08,
	89	UFS_QUERY_TASK = 0x80,
	90	UFS_QUERY_TASK_SET = 0x81,
	91	};
	92
	93	/* UTP UPIU Transaction Codes Initiator to Target */
	94	enum {
	95	UPIU_TRANSACTION_NOP_OUT = 0x00,
	96	UPIU_TRANSACTION_COMMAND = 0x01,
	97	UPIU_TRANSACTION_DATA_OUT = 0x02,
	98	UPIU_TRANSACTION_TASK_REQ = 0x04,
68078d5c	99	UPIU_TRANSACTION_QUERY_REQ = 0x16,
7a3e97b0 SY	100	};
	101
	102	/* UTP UPIU Transaction Codes Target to Initiator */
	103	enum {
	104	UPIU_TRANSACTION_NOP_IN = 0x20,
	105	UPIU_TRANSACTION_RESPONSE = 0x21,
	106	UPIU_TRANSACTION_DATA_IN = 0x22,
	107	UPIU_TRANSACTION_TASK_RSP = 0x24,
	108	UPIU_TRANSACTION_READY_XFER = 0x31,
	109	UPIU_TRANSACTION_QUERY_RSP = 0x36,
5a0b0cb9	110	UPIU_TRANSACTION_REJECT_UPIU = 0x3F,
7a3e97b0 SY	111	};
	112
	113	/* UPIU Read/Write flags */
	114	enum {
	115	UPIU_CMD_FLAGS_NONE = 0x00,
	116	UPIU_CMD_FLAGS_WRITE = 0x20,
	117	UPIU_CMD_FLAGS_READ = 0x40,
	118	};
	119
	120	/* UPIU Task Attributes */
	121	enum {
	122	UPIU_TASK_ATTR_SIMPLE = 0x00,
	123	UPIU_TASK_ATTR_ORDERED = 0x01,
	124	UPIU_TASK_ATTR_HEADQ = 0x02,
	125	UPIU_TASK_ATTR_ACA = 0x03,
	126	};
	127
68078d5c	128	/* UPIU Query request function */
7a3e97b0	129	enum {
68078d5c DR	130	UPIU_QUERY_FUNC_STANDARD_READ_REQUEST = 0x01,
	131	UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST = 0x81,
	132	};
	133
	134	/* Flag idn for Query Requests*/
	135	enum flag_idn {
d10b2a8e SN	136	QUERY_FLAG_IDN_FDEVICEINIT = 0x01,
	137	QUERY_FLAG_IDN_PERMANENT_WPE = 0x02,
	138	QUERY_FLAG_IDN_PWR_ON_WPE = 0x03,
	139	QUERY_FLAG_IDN_BKOPS_EN = 0x04,
	140	QUERY_FLAG_IDN_LIFE_SPAN_MODE_ENABLE = 0x05,
	141	QUERY_FLAG_IDN_PURGE_ENABLE = 0x06,
	142	QUERY_FLAG_IDN_RESERVED2 = 0x07,
	143	QUERY_FLAG_IDN_FPHYRESOURCEREMOVAL = 0x08,
	144	QUERY_FLAG_IDN_BUSY_RTC = 0x09,
	145	QUERY_FLAG_IDN_RESERVED3 = 0x0A,
	146	QUERY_FLAG_IDN_PERMANENTLY_DISABLE_FW_UPDATE = 0x0B,
3d17b9b5 AD	147	QUERY_FLAG_IDN_WB_EN = 0x0E,
	148	QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN = 0x0F,
	149	QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8 = 0x10,
66ec6d59 SRT	150	};
	151
	152	/* Attribute idn for Query requests */
	153	enum attr_idn {
ec92b59c SN	154	QUERY_ATTR_IDN_BOOT_LU_EN = 0x00,
	155	QUERY_ATTR_IDN_RESERVED = 0x01,
	156	QUERY_ATTR_IDN_POWER_MODE = 0x02,
	157	QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03,
	158	QUERY_ATTR_IDN_OOO_DATA_EN = 0x04,
	159	QUERY_ATTR_IDN_BKOPS_STATUS = 0x05,
	160	QUERY_ATTR_IDN_PURGE_STATUS = 0x06,
	161	QUERY_ATTR_IDN_MAX_DATA_IN = 0x07,
	162	QUERY_ATTR_IDN_MAX_DATA_OUT = 0x08,
	163	QUERY_ATTR_IDN_DYN_CAP_NEEDED = 0x09,
	164	QUERY_ATTR_IDN_REF_CLK_FREQ = 0x0A,
	165	QUERY_ATTR_IDN_CONF_DESC_LOCK = 0x0B,
	166	QUERY_ATTR_IDN_MAX_NUM_OF_RTT = 0x0C,
	167	QUERY_ATTR_IDN_EE_CONTROL = 0x0D,
	168	QUERY_ATTR_IDN_EE_STATUS = 0x0E,
	169	QUERY_ATTR_IDN_SECONDS_PASSED = 0x0F,
	170	QUERY_ATTR_IDN_CNTX_CONF = 0x10,
	171	QUERY_ATTR_IDN_CORR_PRG_BLK_NUM = 0x11,
	172	QUERY_ATTR_IDN_RESERVED2 = 0x12,
	173	QUERY_ATTR_IDN_RESERVED3 = 0x13,
	174	QUERY_ATTR_IDN_FFU_STATUS = 0x14,
	175	QUERY_ATTR_IDN_PSA_STATE = 0x15,
	176	QUERY_ATTR_IDN_PSA_DATA_SIZE = 0x16,
09f17791	177	QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME = 0x17,
3d17b9b5 AD	178	QUERY_ATTR_IDN_WB_FLUSH_STATUS = 0x1C,
	179	QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE = 0x1D,
	180	QUERY_ATTR_IDN_WB_BUFF_LIFE_TIME_EST = 0x1E,
	181	QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE = 0x1F,
66ec6d59 SRT	182	};
66ec6d59 SRT	183
d44a5f98 DR	184	/* Descriptor idn for Query requests */
	185	enum desc_idn {
	186	QUERY_DESC_IDN_DEVICE = 0x0,
a4b0e8a4	187	QUERY_DESC_IDN_CONFIGURATION = 0x1,
d44a5f98 DR	188	QUERY_DESC_IDN_UNIT = 0x2,
	189	QUERY_DESC_IDN_RFU_0 = 0x3,
	190	QUERY_DESC_IDN_INTERCONNECT = 0x4,
	191	QUERY_DESC_IDN_STRING = 0x5,
	192	QUERY_DESC_IDN_RFU_1 = 0x6,
	193	QUERY_DESC_IDN_GEOMETRY = 0x7,
	194	QUERY_DESC_IDN_POWER = 0x8,
c648c2d2	195	QUERY_DESC_IDN_HEALTH = 0x9,
da461cec SJ	196	QUERY_DESC_IDN_MAX,
	197	};
	198
	199	enum desc_header_offset {
	200	QUERY_DESC_LENGTH_OFFSET = 0x00,
	201	QUERY_DESC_DESC_TYPE_OFFSET = 0x01,
	202	};
	203
1b3e8956 DR	204	/* Unit descriptor parameters offsets in bytes*/
	205	enum unit_desc_param {
	206	UNIT_DESC_PARAM_LEN = 0x0,
	207	UNIT_DESC_PARAM_TYPE = 0x1,
	208	UNIT_DESC_PARAM_UNIT_INDEX = 0x2,
	209	UNIT_DESC_PARAM_LU_ENABLE = 0x3,
	210	UNIT_DESC_PARAM_BOOT_LUN_ID = 0x4,
	211	UNIT_DESC_PARAM_LU_WR_PROTECT = 0x5,
	212	UNIT_DESC_PARAM_LU_Q_DEPTH = 0x6,
d829fc8a	213	UNIT_DESC_PARAM_PSA_SENSITIVE = 0x7,
1b3e8956 DR	214	UNIT_DESC_PARAM_MEM_TYPE = 0x8,
	215	UNIT_DESC_PARAM_DATA_RELIABILITY = 0x9,
	216	UNIT_DESC_PARAM_LOGICAL_BLK_SIZE = 0xA,
	217	UNIT_DESC_PARAM_LOGICAL_BLK_COUNT = 0xB,
	218	UNIT_DESC_PARAM_ERASE_BLK_SIZE = 0x13,
	219	UNIT_DESC_PARAM_PROVISIONING_TYPE = 0x17,
	220	UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT = 0x18,
	221	UNIT_DESC_PARAM_CTX_CAPABILITIES = 0x20,
	222	UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1 = 0x22,
3d17b9b5	223	UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS = 0x29,
1b3e8956 DR	224	};
1b3e8956 DR	225
c58ab7aa YG	226	/* Device descriptor parameters offsets in bytes*/
	227	enum device_desc_param {
	228	DEVICE_DESC_PARAM_LEN = 0x0,
	229	DEVICE_DESC_PARAM_TYPE = 0x1,
	230	DEVICE_DESC_PARAM_DEVICE_TYPE = 0x2,
	231	DEVICE_DESC_PARAM_DEVICE_CLASS = 0x3,
	232	DEVICE_DESC_PARAM_DEVICE_SUB_CLASS = 0x4,
	233	DEVICE_DESC_PARAM_PRTCL = 0x5,
	234	DEVICE_DESC_PARAM_NUM_LU = 0x6,
	235	DEVICE_DESC_PARAM_NUM_WLU = 0x7,
	236	DEVICE_DESC_PARAM_BOOT_ENBL = 0x8,
	237	DEVICE_DESC_PARAM_DESC_ACCSS_ENBL = 0x9,
	238	DEVICE_DESC_PARAM_INIT_PWR_MODE = 0xA,
	239	DEVICE_DESC_PARAM_HIGH_PR_LUN = 0xB,
	240	DEVICE_DESC_PARAM_SEC_RMV_TYPE = 0xC,
	241	DEVICE_DESC_PARAM_SEC_LU = 0xD,
	242	DEVICE_DESC_PARAM_BKOP_TERM_LT = 0xE,
	243	DEVICE_DESC_PARAM_ACTVE_ICC_LVL = 0xF,
	244	DEVICE_DESC_PARAM_SPEC_VER = 0x10,
	245	DEVICE_DESC_PARAM_MANF_DATE = 0x12,
	246	DEVICE_DESC_PARAM_MANF_NAME = 0x14,
	247	DEVICE_DESC_PARAM_PRDCT_NAME = 0x15,
	248	DEVICE_DESC_PARAM_SN = 0x16,
	249	DEVICE_DESC_PARAM_OEM_ID = 0x17,
	250	DEVICE_DESC_PARAM_MANF_ID = 0x18,
	251	DEVICE_DESC_PARAM_UD_OFFSET = 0x1A,
	252	DEVICE_DESC_PARAM_UD_LEN = 0x1B,
	253	DEVICE_DESC_PARAM_RTT_CAP = 0x1C,
	254	DEVICE_DESC_PARAM_FRQ_RTC = 0x1D,
45bced87 SN	255	DEVICE_DESC_PARAM_UFS_FEAT = 0x1F,
	256	DEVICE_DESC_PARAM_FFU_TMT = 0x20,
	257	DEVICE_DESC_PARAM_Q_DPTH = 0x21,
	258	DEVICE_DESC_PARAM_DEV_VER = 0x22,
	259	DEVICE_DESC_PARAM_NUM_SEC_WPA = 0x24,
	260	DEVICE_DESC_PARAM_PSA_MAX_DATA = 0x25,
	261	DEVICE_DESC_PARAM_PSA_TMT = 0x29,
	262	DEVICE_DESC_PARAM_PRDCT_REV = 0x2A,
3d17b9b5 AD	263	DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP = 0x4F,
	264	DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN = 0x53,
	265	DEVICE_DESC_PARAM_WB_TYPE = 0x54,
	266	DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS = 0x55,
c58ab7aa YG	267	};
c58ab7aa YG	268
8c2582bf SN	269	/* Interconnect descriptor parameters offsets in bytes*/
	270	enum interconnect_desc_param {
	271	INTERCONNECT_DESC_PARAM_LEN = 0x0,
	272	INTERCONNECT_DESC_PARAM_TYPE = 0x1,
	273	INTERCONNECT_DESC_PARAM_UNIPRO_VER = 0x2,
	274	INTERCONNECT_DESC_PARAM_MPHY_VER = 0x4,
	275	};
	276
c720c091 SN	277	/* Geometry descriptor parameters offsets in bytes*/
	278	enum geometry_desc_param {
	279	GEOMETRY_DESC_PARAM_LEN = 0x0,
	280	GEOMETRY_DESC_PARAM_TYPE = 0x1,
	281	GEOMETRY_DESC_PARAM_DEV_CAP = 0x4,
	282	GEOMETRY_DESC_PARAM_MAX_NUM_LUN = 0xC,
	283	GEOMETRY_DESC_PARAM_SEG_SIZE = 0xD,
	284	GEOMETRY_DESC_PARAM_ALLOC_UNIT_SIZE = 0x11,
	285	GEOMETRY_DESC_PARAM_MIN_BLK_SIZE = 0x12,
	286	GEOMETRY_DESC_PARAM_OPT_RD_BLK_SIZE = 0x13,
	287	GEOMETRY_DESC_PARAM_OPT_WR_BLK_SIZE = 0x14,
	288	GEOMETRY_DESC_PARAM_MAX_IN_BUF_SIZE = 0x15,
	289	GEOMETRY_DESC_PARAM_MAX_OUT_BUF_SIZE = 0x16,
	290	GEOMETRY_DESC_PARAM_RPMB_RW_SIZE = 0x17,
	291	GEOMETRY_DESC_PARAM_DYN_CAP_RSRC_PLC = 0x18,
	292	GEOMETRY_DESC_PARAM_DATA_ORDER = 0x19,
	293	GEOMETRY_DESC_PARAM_MAX_NUM_CTX = 0x1A,
	294	GEOMETRY_DESC_PARAM_TAG_UNIT_SIZE = 0x1B,
	295	GEOMETRY_DESC_PARAM_TAG_RSRC_SIZE = 0x1C,
	296	GEOMETRY_DESC_PARAM_SEC_RM_TYPES = 0x1D,
	297	GEOMETRY_DESC_PARAM_MEM_TYPES = 0x1E,
	298	GEOMETRY_DESC_PARAM_SCM_MAX_NUM_UNITS = 0x20,
	299	GEOMETRY_DESC_PARAM_SCM_CAP_ADJ_FCTR = 0x24,
	300	GEOMETRY_DESC_PARAM_NPM_MAX_NUM_UNITS = 0x26,
	301	GEOMETRY_DESC_PARAM_NPM_CAP_ADJ_FCTR = 0x2A,
	302	GEOMETRY_DESC_PARAM_ENM1_MAX_NUM_UNITS = 0x2C,
	303	GEOMETRY_DESC_PARAM_ENM1_CAP_ADJ_FCTR = 0x30,
	304	GEOMETRY_DESC_PARAM_ENM2_MAX_NUM_UNITS = 0x32,
	305	GEOMETRY_DESC_PARAM_ENM2_CAP_ADJ_FCTR = 0x36,
	306	GEOMETRY_DESC_PARAM_ENM3_MAX_NUM_UNITS = 0x38,
	307	GEOMETRY_DESC_PARAM_ENM3_CAP_ADJ_FCTR = 0x3C,
	308	GEOMETRY_DESC_PARAM_ENM4_MAX_NUM_UNITS = 0x3E,
	309	GEOMETRY_DESC_PARAM_ENM4_CAP_ADJ_FCTR = 0x42,
	310	GEOMETRY_DESC_PARAM_OPT_LOG_BLK_SIZE = 0x44,
c14e7adf AD	311	GEOMETRY_DESC_PARAM_WB_MAX_ALLOC_UNITS = 0x4F,
	312	GEOMETRY_DESC_PARAM_WB_MAX_WB_LUNS = 0x53,
	313	GEOMETRY_DESC_PARAM_WB_BUFF_CAP_ADJ = 0x54,
	314	GEOMETRY_DESC_PARAM_WB_SUP_RED_TYPE = 0x55,
	315	GEOMETRY_DESC_PARAM_WB_SUP_WB_TYPE = 0x56,
c720c091 SN	316	};
c720c091 SN	317
c648c2d2 SN	318	/* Health descriptor parameters offsets in bytes*/
	319	enum health_desc_param {
	320	HEALTH_DESC_PARAM_LEN = 0x0,
	321	HEALTH_DESC_PARAM_TYPE = 0x1,
	322	HEALTH_DESC_PARAM_EOL_INFO = 0x2,
	323	HEALTH_DESC_PARAM_LIFE_TIME_EST_A = 0x3,
	324	HEALTH_DESC_PARAM_LIFE_TIME_EST_B = 0x4,
	325	};
	326
6f8d5a6a SC	327	/* WriteBooster buffer mode */
	328	enum {
	329	WB_BUF_MODE_LU_DEDICATED = 0x0,
	330	WB_BUF_MODE_SHARED = 0x1,
	331	};
	332
57d104c1 SJ	333	/*
	334	* Logical Unit Write Protect
	335	* 00h: LU not write protected
	336	* 01h: LU write protected when fPowerOnWPEn =1
	337	* 02h: LU permanently write protected when fPermanentWPEn =1
	338	*/
	339	enum ufs_lu_wp_type {
	340	UFS_LU_NO_WP = 0x00,
	341	UFS_LU_POWER_ON_WP = 0x01,
	342	UFS_LU_PERM_WP = 0x02,
	343	};
	344
3a4bf06d YG	345	/* bActiveICCLevel parameter current units */
	346	enum {
	347	UFSHCD_NANO_AMP = 0,
	348	UFSHCD_MICRO_AMP = 1,
	349	UFSHCD_MILI_AMP = 2,
	350	UFSHCD_AMP = 3,
	351	};
	352
3d17b9b5 AD	353	/* Possible values for dExtendedUFSFeaturesSupport */
	354	enum {
	355	UFS_DEV_WRITE_BOOSTER_SUP = BIT(8),
	356	};
	357
3a4bf06d YG	358	#define POWER_DESC_MAX_SIZE 0x62
	359	#define POWER_DESC_MAX_ACTV_ICC_LVLS 16
	360
	361	/* Attribute bActiveICCLevel parameter bit masks definitions */
	362	#define ATTR_ICC_LVL_UNIT_OFFSET 14
	363	#define ATTR_ICC_LVL_UNIT_MASK (0x3 << ATTR_ICC_LVL_UNIT_OFFSET)
	364	#define ATTR_ICC_LVL_VALUE_MASK 0x3FF
	365
	366	/* Power descriptor parameters offsets in bytes */
	367	enum power_desc_param_offset {
	368	PWR_DESC_LEN = 0x0,
	369	PWR_DESC_TYPE = 0x1,
	370	PWR_DESC_ACTIVE_LVLS_VCC_0 = 0x2,
	371	PWR_DESC_ACTIVE_LVLS_VCCQ_0 = 0x22,
	372	PWR_DESC_ACTIVE_LVLS_VCCQ2_0 = 0x42,
	373	};
	374
66ec6d59 SRT	375	/* Exception event mask values */
	376	enum {
	377	MASK_EE_STATUS = 0xFFFF,
	378	MASK_EE_URGENT_BKOPS = (1 << 2),
	379	};
	380
	381	/* Background operation status */
57d104c1	382	enum bkops_status {
66ec6d59 SRT	383	BKOPS_STATUS_NO_OP = 0x0,
	384	BKOPS_STATUS_NON_CRITICAL = 0x1,
	385	BKOPS_STATUS_PERF_IMPACT = 0x2,
	386	BKOPS_STATUS_CRITICAL = 0x3,
57d104c1	387	BKOPS_STATUS_MAX = BKOPS_STATUS_CRITICAL,
68078d5c DR	388	};
	389
	390	/* UTP QUERY Transaction Specific Fields OpCode */
	391	enum query_opcode {
7a3e97b0 SY	392	UPIU_QUERY_OPCODE_NOP = 0x0,
	393	UPIU_QUERY_OPCODE_READ_DESC = 0x1,
	394	UPIU_QUERY_OPCODE_WRITE_DESC = 0x2,
	395	UPIU_QUERY_OPCODE_READ_ATTR = 0x3,
	396	UPIU_QUERY_OPCODE_WRITE_ATTR = 0x4,
	397	UPIU_QUERY_OPCODE_READ_FLAG = 0x5,
	398	UPIU_QUERY_OPCODE_SET_FLAG = 0x6,
	399	UPIU_QUERY_OPCODE_CLEAR_FLAG = 0x7,
	400	UPIU_QUERY_OPCODE_TOGGLE_FLAG = 0x8,
	401	};
	402
9e1e8a75 SJ	403	/* bRefClkFreq attribute values */
	404	enum ufs_ref_clk_freq {
	405	REF_CLK_FREQ_19_2_MHZ = 0,
	406	REF_CLK_FREQ_26_MHZ = 1,
	407	REF_CLK_FREQ_38_4_MHZ = 2,
	408	REF_CLK_FREQ_52_MHZ = 3,
	409	REF_CLK_FREQ_INVAL = -1,
	410	};
	411
	412	struct ufs_ref_clk {
	413	unsigned long freq_hz;
	414	enum ufs_ref_clk_freq val;
	415	};
	416
68078d5c DR	417	/* Query response result code */
	418	enum {
	419	QUERY_RESULT_SUCCESS = 0x00,
	420	QUERY_RESULT_NOT_READABLE = 0xF6,
	421	QUERY_RESULT_NOT_WRITEABLE = 0xF7,
	422	QUERY_RESULT_ALREADY_WRITTEN = 0xF8,
	423	QUERY_RESULT_INVALID_LENGTH = 0xF9,
	424	QUERY_RESULT_INVALID_VALUE = 0xFA,
	425	QUERY_RESULT_INVALID_SELECTOR = 0xFB,
	426	QUERY_RESULT_INVALID_INDEX = 0xFC,
	427	QUERY_RESULT_INVALID_IDN = 0xFD,
	428	QUERY_RESULT_INVALID_OPCODE = 0xFE,
	429	QUERY_RESULT_GENERAL_FAILURE = 0xFF,
	430	};
	431
7a3e97b0 SY	432	/* UTP Transfer Request Command Type (CT) */
	433	enum {
	434	UPIU_COMMAND_SET_TYPE_SCSI = 0x0,
	435	UPIU_COMMAND_SET_TYPE_UFS = 0x1,
	436	UPIU_COMMAND_SET_TYPE_QUERY = 0x2,
	437	};
	438
5a0b0cb9 SRT	439	/* UTP Transfer Request Command Offset */
	440	#define UPIU_COMMAND_TYPE_OFFSET 28
	441
	442	/* Offset of the response code in the UPIU header */
	443	#define UPIU_RSP_CODE_OFFSET 8
	444
7a3e97b0	445	enum {
68078d5c DR	446	MASK_SCSI_STATUS = 0xFF,
	447	MASK_TASK_RESPONSE = 0xFF00,
	448	MASK_RSP_UPIU_RESULT = 0xFFFF,
	449	MASK_QUERY_DATA_SEG_LEN = 0xFFFF,
1c2623c5	450	MASK_RSP_UPIU_DATA_SEG_LEN = 0xFFFF,
66ec6d59	451	MASK_RSP_EXCEPTION_EVENT = 0x10000,
8794ee0c	452	MASK_TM_SERVICE_RESP = 0xFF,
5e0a86ee	453	MASK_TM_FUNC = 0xFF,
7a3e97b0 SY	454	};
	455
	456	/* Task management service response */
	457	enum {
	458	UPIU_TASK_MANAGEMENT_FUNC_COMPL = 0x00,
	459	UPIU_TASK_MANAGEMENT_FUNC_NOT_SUPPORTED = 0x04,
	460	UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED = 0x08,
	461	UPIU_TASK_MANAGEMENT_FUNC_FAILED = 0x05,
	462	UPIU_INCORRECT_LOGICAL_UNIT_NO = 0x09,
	463	};
57d104c1 SJ	464
	465	/* UFS device power modes */
	466	enum ufs_dev_pwr_mode {
	467	UFS_ACTIVE_PWR_MODE = 1,
	468	UFS_SLEEP_PWR_MODE = 2,
	469	UFS_POWERDOWN_PWR_MODE = 3,
	470	};
	471
d14734ae	472	#define UFS_WB_BUF_REMAIN_PERCENT(val) ((val) / 10)
3d17b9b5	473
5a0b0cb9 SRT	474	/**
5a0b0cb9 SRT	475	* struct utp_cmd_rsp - Response UPIU structure
7a3e97b0 SY	476	* @residual_transfer_count: Residual transfer count DW-3
	477	* @reserved: Reserved double words DW-4 to DW-7
	478	* @sense_data_len: Sense data length DW-8 U16
	479	* @sense_data: Sense data field DW-8 to DW-12
	480	*/
5a0b0cb9	481	struct utp_cmd_rsp {
e8c8e82a SRT	482	__be32 residual_transfer_count;
	483	__be32 reserved[4];
	484	__be16 sense_data_len;
09a5a24f	485	u8 sense_data[UFS_SENSE_SIZE];
7a3e97b0 SY	486	};
7a3e97b0 SY	487
5a0b0cb9 SRT	488	/**
	489	* struct utp_upiu_rsp - general upiu response structure
	490	* @header: UPIU header structure DW-0 to DW-2
	491	* @sr: fields structure for scsi command DW-3 to DW-12
68078d5c	492	* @qr: fields structure for query request DW-3 to DW-7
5a0b0cb9 SRT	493	*/
	494	struct utp_upiu_rsp {
	495	struct utp_upiu_header header;
68078d5c DR	496	union {
	497	struct utp_cmd_rsp sr;
	498	struct utp_upiu_query qr;
	499	};
5a0b0cb9 SRT	500	};
5a0b0cb9 SRT	501
68078d5c DR	502	/**
	503	* struct ufs_query_req - parameters for building a query request
	504	* @query_func: UPIU header query function
	505	* @upiu_req: the query request data
	506	*/
	507	struct ufs_query_req {
	508	u8 query_func;
	509	struct utp_upiu_query upiu_req;
	510	};
	511
	512	/**
	513	* struct ufs_query_resp - UPIU QUERY
	514	* @response: device response code
	515	* @upiu_res: query response data
	516	*/
	517	struct ufs_query_res {
	518	u8 response;
	519	struct utp_upiu_query upiu_res;
	520	};
	521
aa497613 SRT	522	#define UFS_VREG_VCC_MIN_UV 2700000 /* uV */
	523	#define UFS_VREG_VCC_MAX_UV 3600000 /* uV */
	524	#define UFS_VREG_VCC_1P8_MIN_UV 1700000 /* uV */
	525	#define UFS_VREG_VCC_1P8_MAX_UV 1950000 /* uV */
a7ef6f02 CG	526	#define UFS_VREG_VCCQ_MIN_UV 1140000 /* uV */
	527	#define UFS_VREG_VCCQ_MAX_UV 1260000 /* uV */
	528	#define UFS_VREG_VCCQ2_MIN_UV 1700000 /* uV */
aa497613 SRT	529	#define UFS_VREG_VCCQ2_MAX_UV 1950000 /* uV */
aa497613 SRT	530
57d104c1 SJ	531	/*
	532	* VCCQ & VCCQ2 current requirement when UFS device is in sleep state
	533	* and link is in Hibern8 state.
	534	*/
	535	#define UFS_VREG_LPM_LOAD_UA 1000 /* uA */
	536
aa497613 SRT	537	struct ufs_vreg {
	538	struct regulator *reg;
	539	const char *name;
	540	bool enabled;
	541	int min_uV;
	542	int max_uV;
aa497613 SRT	543	int max_uA;
	544	};
	545
	546	struct ufs_vreg_info {
	547	struct ufs_vreg *vcc;
	548	struct ufs_vreg *vccq;
	549	struct ufs_vreg *vccq2;
6a771a65	550	struct ufs_vreg *vdd_hba;
aa497613 SRT	551	};
aa497613 SRT	552
57d104c1 SJ	553	struct ufs_dev_info {
	554	bool f_power_on_wp_en;
	555	/* Keeps information if any of the LU is power on write protected */
	556	bool is_lu_power_on_wp;
731f0621 BH	557	/* Maximum number of general LU supported by the UFS device */
731f0621 BH	558	u8 max_lu_supported;
6f8d5a6a	559	u8 wb_dedicated_lu;
93fdd5ac	560	u16 wmanufacturerid;
09750066	561	/UFS device Product Name /
4b828fe1	562	u8 *model;
09f17791 CG	563	u16 wspecversion;
09f17791 CG	564	u32 clk_gating_wait_us;
3d17b9b5 AD	565	u32 d_ext_ufs_feature_sup;
	566	u8 b_wb_buffer_type;
	567	u32 d_wb_alloc_units;
51dd905b	568	bool b_rpm_dev_flush_capable;
3d17b9b5	569	u8 b_presrv_uspc_en;
93fdd5ac TW	570	};
93fdd5ac TW	571
d829fc8a SN	572	/**
d829fc8a SN	573	* ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
1baa8011	574	* @dev_info: pointer of instance of struct ufs_dev_info
d829fc8a SN	575	* @lun: LU number to check
	576	* @return: true if the lun has a matching unit descriptor, false otherwise
	577	*/
1baa8011 BH	578	static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info,
1baa8011 BH	579	u8 lun)
d829fc8a	580	{
1baa8011	581	if (!dev_info \|\| !dev_info->max_lu_supported) {
e0a51425	582	pr_err("Max General LU supported by UFS isn't initialized\n");
1baa8011 BH	583	return false;
	584	}
	585
	586	return lun == UFS_UPIU_RPMB_WLUN \|\| (lun < dev_info->max_lu_supported);
d829fc8a SN	587	}
d829fc8a SN	588
7a3e97b0	589	#endif /* End of Header */