/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2002 Adaptec Inc.
 * All rights reserved.
 *
 * Written by: David Jeffery
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/param.h>

/*
 *   IPS CONSTANTS
 */
#define IPS_VENDOR_ID                   0x1014
#define IPS_VENDOR_ID_ADAPTEC		0x9005
#define IPS_MORPHEUS_DEVICE_ID          0x01BD
#define IPS_COPPERHEAD_DEVICE_ID        0x002E
#define IPS_MARCO_DEVICE_ID		0x0250
#define IPS_CSL				0xff
#define IPS_POCL			0x30

/* amounts of memory to allocate for certain commands */
#define IPS_ADAPTER_INFO_LEN		(sizeof(ips_adapter_info_t))
#define IPS_DRIVE_INFO_LEN		(sizeof(ips_drive_info_t)) 
#define IPS_COMMAND_LEN			24
#define IPS_MAX_SG_LEN			(sizeof(ips_sg_element_t) * IPS_MAX_SG_ELEMENTS)
#define IPS_NVRAM_PAGE_SIZE		128
/* various flags */
#define IPS_STATIC_FLAG			0x01

/* states for the card to be in */
#define IPS_DEV_OPEN			0x01
#define IPS_TIMEOUT			0x02 /* command time out, need reset */
#define IPS_OFFLINE			0x04 /* can't reset card/card failure */
#define IPS_STATIC_BUSY			0x08

/* max number of commands set to something low for now */
#define IPS_MAX_CMD_NUM			128	
#define IPS_MAX_NUM_DRIVES		8
#define IPS_MAX_SG_ELEMENTS		32
#define IPS_MAX_IOBUF_SIZE		(64 * 1024)
#define IPS_BLKSIZE			512
#define IPS_MAX_LD			8
#define IPS_MAX_CHANNELS		4
#define IPS_MAX_TARGETS			15
#define IPS_MAX_CHUNKS			16

/* logical drive states */

#define IPS_LD_OFFLINE               	0x02
#define IPS_LD_OKAY                  	0x03
#define IPS_LD_DEGRADED			0x04
#define IPS_LD_FREE                  	0x00
#define IPS_LD_SYS                   	0x06
#define IPS_LD_CRS                   	0x24

/* register offsets */
#define MORPHEUS_REG_OMR0               0x0018 /* Outbound Msg. Reg. 0 */
#define MORPHEUS_REG_OMR1               0x001C /* Outbound Msg. Reg. 1 */
#define MORPHEUS_REG_IDR		0x0020 /* Inbound Doorbell Reg. */
#define MORPHEUS_REG_IISR               0x0024 /* Inbound IRQ Status Reg. */
#define MORPHEUS_REG_IIMR               0x0028 /* Inbound IRQ Mask Reg. */
#define MORPHEUS_REG_OISR               0x0030 /* Outbound IRQ Status Reg. */
#define MORPHEUS_REG_OIMR               0x0034 /* Outbound IRQ Mask Reg. */
#define MORPHEUS_REG_IQPR               0x0040 /* Inbound Queue Port Reg. */
#define MORPHEUS_REG_OQPR               0x0044 /* Outbound Queue Port Reg. */

#define COPPER_REG_SCPR			0x05	/* Subsystem Ctrl. Port Reg. */
#define COPPER_REG_ISPR			0x06	/* IRQ Status Port Reg. */
#define COPPER_REG_CBSP			0x07	/* ? Reg. */
#define COPPER_REG_HISR			0x08	/* Host IRQ Status Reg.    */
#define COPPER_REG_CCSAR		0x10	/* Cmd. Channel Sys Addr Reg.*/
#define COPPER_REG_CCCR			0x14	/* Cmd. Channel Ctrl. Reg. */
#define COPPER_REG_SQHR                	0x20    /* Status Queue Head Reg.  */
#define COPPER_REG_SQTR                	0x24    /* Status Queue Tail Reg.  */
#define COPPER_REG_SQER                	0x28    /* Status Queue End Reg.   */
#define COPPER_REG_SQSR                	0x2C    /* Status Queue Start Reg. */

/* bit definitions */
#define MORPHEUS_BIT_POST1              0x01
#define MORPHEUS_BIT_POST2              0x02
#define MORPHEUS_BIT_CMD_IRQ		0x08

#define COPPER_CMD_START		0x101A
#define COPPER_SEM_BIT			0x08
#define COPPER_EI_BIT			0x80
#define COPPER_EBM_BIT			0x02
#define COPPER_RESET_BIT		0x80
#define COPPER_GHI_BIT			0x04
#define COPPER_SCE_BIT			0x01
#define COPPER_OP_BIT			0x01
#define COPPER_ILE_BIT			0x10

/* status defines */
#define IPS_POST1_OK                    0x8000
#define IPS_POST2_OK                    0x000f

/* command op codes */
#define IPS_READ_CMD			0x02
#define IPS_WRITE_CMD			0x03
#define IPS_ADAPTER_INFO_CMD		0x05
#define IPS_CACHE_FLUSH_CMD		0x0A
#define IPS_REBUILD_STATUS_CMD		0x0C
#define IPS_ERROR_TABLE_CMD		0x17
#define IPS_DRIVE_INFO_CMD		0x19
#define IPS_CMD_READ_CONF		0x38
#define IPS_SUBSYS_PARAM_CMD		0x40
#define IPS_CONFIG_SYNC_CMD		0x58
#define IPS_SG_READ_CMD			0x82
#define IPS_SG_WRITE_CMD		0x83
#define IPS_RW_NVRAM_CMD		0xBC
#define IPS_FFDC_CMD			0xD7

/* basic_status information returned by the adapter */
#define IPS_MIN_ERROR			0x02
#define IPS_BASIC_STATUS_MASK		0xFF
#define IPS_GSC_STATUS_MASK		0x0F
#define IPS_CMD_SUCCESS			0x00
#define IPS_CMD_RECOVERED_ERROR		0x01
#define IPS_DRV_ERROR			0x02	/* Driver supplied error */
#define IPS_INVAL_OPCO			0x03
#define IPS_INVAL_CMD_BLK		0x04
#define IPS_INVAL_PARM_BLK		0x05
#define IPS_BUSY			0x08
#define IPS_CMD_CMPLT_WERROR		0x0C
#define IPS_LD_ERROR			0x0D
#define IPS_CMD_TIMEOUT			0x0E
#define IPS_PHYS_DRV_ERROR		0x0F

/* extended_status information returned by the adapter */
#define IPS_ERR_SEL_TO			0xF0
#define IPS_ERR_OU_RUN			0xF2
#define IPS_ERR_HOST_RESET		0xF7
#define IPS_ERR_DEV_RESET		0xF8
#define IPS_ERR_RECOVERY		0xFC
#define IPS_ERR_CKCOND			0xFF

#define IPS_OS_FREEBSD			8
#define IPS_VERSION_MAJOR		"0.90"
#define IPS_VERSION_MINOR		".10"

/* Adapter Types */
#define IPS_ADAPTER_COPPERHEAD		0x01
#define IPS_ADAPTER_COPPERHEAD2		0x02
#define IPS_ADAPTER_COPPERHEADOB1	0x03
#define IPS_ADAPTER_COPPERHEADOB2	0x04
#define IPS_ADAPTER_CLARINET		0x05
#define IPS_ADAPTER_CLARINETLITE	0x06
#define IPS_ADAPTER_TROMBONE		0x07
#define IPS_ADAPTER_MORPHEUS		0x08
#define IPS_ADAPTER_MORPHEUSLITE	0x09
#define IPS_ADAPTER_NEO			0x0A
#define IPS_ADAPTER_NEOLITE		0x0B
#define IPS_ADAPTER_SARASOTA2		0x0C
#define IPS_ADAPTER_SARASOTA1		0x0D
#define IPS_ADAPTER_MARCO		0x0E
#define IPS_ADAPTER_SEBRING		0x0F
#define IPS_ADAPTER_7T			0x10
#define IPS_ADAPTER_7K			0x11
#define IPS_ADAPTER_7M			0x12
#define IPS_ADAPTER_MAX_T		IPS_ADAPTER_7M

/* values for ffdc_settime (from gmtime) */
#define IPS_SECSPERMIN      60
#define IPS_MINSPERHOUR     60
#define IPS_HOURSPERDAY     24
#define IPS_DAYSPERWEEK     7
#define IPS_DAYSPERNYEAR    365
#define IPS_DAYSPERLYEAR    366
#define IPS_SECSPERHOUR     (IPS_SECSPERMIN * IPS_MINSPERHOUR)
#define IPS_SECSPERDAY      ((long) IPS_SECSPERHOUR * IPS_HOURSPERDAY)
#define IPS_MONSPERYEAR     12
#define IPS_EPOCH_YEAR      1970
#define IPS_LEAPS_THRU_END_OF(y)    ((y) / 4 - (y) / 100 + (y) / 400)
#define ips_isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))

/*
 *   IPS STRUCTS
 */

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	drivenum;
	u_int8_t	reserve2;
	u_int32_t	lba;
	u_int32_t	buffaddr;
	u_int32_t	reserve3;
} __attribute__ ((packed)) ips_generic_cmd;

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	drivenum;
	u_int8_t	segnum;
	u_int32_t	lba;
	u_int32_t	buffaddr;
	u_int16_t	length;
	u_int16_t	reserve1;
} __attribute__ ((packed)) ips_io_cmd;

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	pagenum;
	u_int8_t	rw;
	u_int32_t	reserve1;
	u_int32_t	buffaddr;
	u_int32_t	reserve3;
} __attribute__ ((packed)) ips_rw_nvram_cmd;

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	drivenum;
	u_int8_t	reserve1;
	u_int32_t	reserve2;
	u_int32_t	buffaddr;
	u_int32_t	reserve3;
} __attribute__ ((packed)) ips_drive_cmd;

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	reserve1;
	u_int8_t	commandtype;
	u_int32_t	reserve2;
	u_int32_t	buffaddr;
	u_int32_t	reserve3;
} __attribute__((packed)) ips_adapter_info_cmd;

typedef struct{
	u_int8_t	command;
	u_int8_t	id;
	u_int8_t	reset_count;
	u_int8_t	reset_type;
	u_int8_t	second;
	u_int8_t	minute;
	u_int8_t	hour;
	u_int8_t	day;
	u_int8_t	reserve1[4];
	u_int8_t	month;
	u_int8_t	yearH;
	u_int8_t	yearL;
	u_int8_t	reserve2;
} __attribute__((packed)) ips_adapter_ffdc_cmd;

typedef union{
	ips_generic_cmd		generic_cmd;
	ips_drive_cmd 		drive_cmd;
	ips_adapter_info_cmd 	adapter_info_cmd;
} ips_cmd_buff_t;

typedef struct {
   u_int32_t  signature;
   u_int8_t   reserved;
   u_int8_t   adapter_slot;
   u_int16_t  adapter_type;
   u_int8_t   bios_high[4];
   u_int8_t   bios_low[4];
   u_int16_t  reserve2;
   u_int8_t   reserve3;
   u_int8_t   operating_system;
   u_int8_t   driver_high[4];
   u_int8_t   driver_low[4];
   u_int8_t   reserve4[100];
}__attribute__((packed)) ips_nvram_page5;

typedef struct{
	u_int32_t	addr;
	u_int32_t	len;
} ips_sg_element_t;

typedef struct{
	u_int8_t	drivenum;
	u_int8_t	merge_id;
	u_int8_t	raid_lvl;
	u_int8_t	state;
	u_int32_t	sector_count;
} __attribute__((packed)) ips_drive_t;

typedef struct{
	u_int8_t	drivecount;
	u_int8_t	reserve1;
	u_int16_t	reserve2;
	ips_drive_t drives[IPS_MAX_NUM_DRIVES];
}__attribute__((packed)) ips_drive_info_t;

typedef struct{
	u_int8_t	drivecount;
	u_int8_t	miscflags;
	u_int8_t	SLTflags;
	u_int8_t	BSTflags;
	u_int8_t	pwr_chg_count;
	u_int8_t	wrong_addr_count;
	u_int8_t	unident_count;
	u_int8_t	nvram_dev_chg_count;
	u_int8_t	codeblock_version[8];
	u_int8_t	bootblock_version[8];
	u_int32_t	drive_sector_count[IPS_MAX_NUM_DRIVES];
	u_int8_t	max_concurrent_cmds;
	u_int8_t	max_phys_devices;
	u_int16_t	flash_prog_count;
	u_int8_t	defunct_disks;
	u_int8_t	rebuildflags;
	u_int8_t	offline_drivecount;
	u_int8_t	critical_drivecount;
	u_int16_t	config_update_count;
	u_int8_t	blockedflags;
	u_int8_t	psdn_error;
	u_int16_t	addr_dead_disk[IPS_MAX_CHANNELS][IPS_MAX_TARGETS];
}__attribute__((packed)) ips_adapter_info_t;

typedef struct {
	u_int8_t	initiator;
	u_int8_t	parameters;
	u_int8_t	miscflag;
	u_int8_t	state;
	u_int32_t	blkcount;
	u_int8_t	deviceid[28];
} __attribute__((packed)) ips_devstate_t;

/*
 * The states that a physical drive can be in.  The 'present' value can be
 * OR'd with the other values.
 */
#define IPS_DEVSTATE_PRESENT	0x81
#define IPS_DEVSTATE_REBUILD	0x02
#define IPS_DEVSTATE_SPARE	0x04
#define IPS_DEVSTATE_MEMBER	0x08

typedef struct {
	u_int8_t	channel;
	u_int8_t	target;
	u_int16_t	reserved;
	u_int32_t	startsectors;
	u_int32_t	numsectors;
} __attribute__((packed)) ips_chunk_t;

typedef struct {
	u_int16_t	userfield;
	u_int8_t	state;
	u_int8_t	raidcacheparam;
	u_int8_t	numchunkunits;
	u_int8_t	stripesize;
	u_int8_t	params;
	u_int8_t	reserved;
	u_int32_t	ldsize;
	ips_chunk_t	chunk[IPS_MAX_CHUNKS];
} __attribute__((packed)) ips_ld_t;

typedef struct {
	u_int8_t	boarddisc[8];
	u_int8_t	processor[8];
	u_int8_t	numchantype;
	u_int8_t	numhostinttype;
	u_int8_t	compression;
	u_int8_t	nvramtype;
	u_int32_t	nvramsize;
} __attribute__((packed)) ips_hardware_t;

typedef struct {
	u_int8_t	ldcount;
	u_int8_t	day;
	u_int8_t	month;
	u_int8_t	year;
	u_int8_t	initiatorid[4];
	u_int8_t	hostid[12];
	u_int8_t	timesign[8];
	u_int32_t	useropt;
	u_int16_t	userfield;
	u_int8_t	rebuildrate;
	u_int8_t	reserve;
	ips_hardware_t	hardwaredisc;
	ips_ld_t	ld[IPS_MAX_LD];
	ips_devstate_t	dev[IPS_MAX_CHANNELS][IPS_MAX_TARGETS+1];
	u_int8_t	reserved[512];
} __attribute__((packed)) ips_conf_t;

typedef union {
   struct {
      u_int8_t  reserved;
      u_int8_t  command_id;
      u_int8_t  basic_status;
      u_int8_t  extended_status;
   } fields;
   volatile u_int32_t    value;
} ips_cmd_status_t;

