/*      $NetBSD: cacreg.h,v 1.12 2022/11/01 19:24:30 andvar Exp $       */

/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

/*-
* Copyright (c) 1999 Jonathan Lemon
* All rights reserved.
*
* 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.
*/

#ifndef _IC_CACREG_H_
#define _IC_CACREG_H_

/* Board register offsets */
#define CAC_REG_CMD_FIFO                0x04
#define CAC_REG_DONE_FIFO               0x08
#define CAC_REG_INTR_MASK               0x0C
#define CAC_REG_STATUS                  0x10
#define CAC_REG_INTR_PENDING            0x14

#define CAC_42REG_CMD_FIFO              0x40
#define CAC_42REG_DONE_FIFO             0x44
#define CAC_42REG_INTR_MASK             0x34
#define CAC_42REG_STATUS                0x30

#define CAC_42_EXTINT                   0x08

#define CAC_EISAREG_INTR_MASK           0x01
#define CAC_EISAREG_LOCAL_MASK          0x04
#define CAC_EISAREG_LOCAL_DOORBELL      0x05
#define CAC_EISAREG_SYSTEM_MASK         0x06
#define CAC_EISAREG_SYSTEM_DOORBELL     0x07
#define CAC_EISAREG_LIST_ADDR           0x08
#define CAC_EISAREG_LIST_LEN            0x0c
#define CAC_EISAREG_TAG                 0x0f
#define CAC_EISAREG_COMPLETE_ADDR       0x10
#define CAC_EISAREG_LIST_STATUS         0x16

/* EISA channel control */
#define CAC_EISA_CHANNEL_BUSY           0x01
#define CAC_EISA_CHANNEL_CLEAR          0x02

/* Interrupt mask values */
#define CAC_INTR_DISABLE                0x00
#define CAC_INTR_ENABLE                 0x01

/* Command types */
#define CAC_CMD_GET_LOG_DRV_INFO        0x10
#define CAC_CMD_GET_CTRL_INFO           0x11
#define CAC_CMD_SENSE_DRV_STATUS        0x12
#define CAC_CMD_START_RECOVERY          0x13
#define CAC_CMD_GET_PHYS_DRV_INFO       0x15
#define CAC_CMD_BLINK_DRV_LEDS          0x16
#define CAC_CMD_SENSE_DRV_LEDS          0x17
#define CAC_CMD_GET_LOG_DRV_EXT         0x18
#define CAC_CMD_GET_CTRL_INFO           0x11
#define CAC_CMD_READ                    0x20
#define CAC_CMD_WRITE                   0x30
#define CAC_CMD_WRITE_MEDIA             0x31
#define CAC_CMD_GET_CONFIG              0x50
#define CAC_CMD_SET_CONFIG              0x51
#define CAC_CMD_START_FIRMWARE          0x99
#define CAC_CMD_FLUSH_CACHE             0xc2

/* Return status codes */
#define CAC_RET_SOFT_ERROR              0x02
#define CAC_RET_HARD_ERROR              0x04
#define CAC_RET_INVAL_BLOCK             0x10
#define CAC_RET_CMD_REJECTED            0x14

struct cac_drive_info {
       u_int16_t       secsize;
       u_int32_t       secperunit;
       u_int16_t       ncylinders;
       u_int8_t        nheads;
       u_int8_t        signature;
       u_int8_t        psectors;
       u_int16_t       wprecomp;
       u_int8_t        max_acc;
       u_int8_t        control;
       u_int16_t       pcylinders;
       u_int8_t        ptracks;
       u_int16_t       landing_zone;
       u_int8_t        nsectors;
       u_int8_t        checksum;
       u_int8_t        mirror;
} __packed;

struct cac_controller_info {
       u_int8_t        num_drvs;
       u_int32_t       signature;
       u_int8_t        firm_rev[4];
       u_int8_t        rom_rev[4];
       u_int8_t        hw_rev;
       u_int32_t       bb_rev;
       u_int32_t       drv_present_map;
       u_int32_t       ext_drv_map;
       u_int32_t       board_id;
       u_int8_t        cfg_error;
       u_int32_t       non_disk_bits;
       u_int8_t        bad_ram_addr;
       u_int8_t        cpu_rev;
       u_int8_t        pdpi_rev;
       u_int8_t        epic_rev;
       u_int8_t        wcxc_rev;
       u_int8_t        marketing_rev;
       u_int8_t        ctlr_flags;
       u_int8_t        host_flags;
       u_int8_t        expand_dis;
       u_int8_t        scsi_chips;
       u_int32_t       max_req_blocks;
       u_int32_t       ctlr_clock;
       u_int8_t        drvs_per_bus;
       u_int16_t       big_drv_present_map[8];
       u_int16_t       big_ext_drv_map[8];
       u_int16_t       big_non_disk_map[8];
       u_int16_t       task_flags;
       u_int8_t        icl_bus;
       u_int8_t        red_modes;
       u_int8_t        cur_red_mode;
       u_int8_t        red_ctlr_stat;
       u_int8_t        red_fail_reason;
       u_int8_t        reserved[403];
} __packed;

struct cac_drive_status {
       u_int8_t        stat;
#define CAC_LD_OK       0
#define CAC_LD_FAILED   1
#define CAC_LD_UNCONF   2
#define CAC_LD_DEGRAD   3
#define CAC_LD_RBLDRD   4       /* ready for rebuild */
#define CAC_LD_REBLD    5
#define CAC_LD_PDINV    6       /* wrong phys drive replaced */
#define CAC_LD_PDUNC    7       /* phys drive is not connected proper */
#define CAC_LD_EXPND    10      /* expanding */
#define CAC_LD_NORDY    11      /* volume is not ready */
#define CAC_LD_QEXPND   12      /* queued for expansion */
       u_int8_t        failed[4];      /* failed map */
       u_int8_t        res0[416];
       u_int8_t        prog[4];        /* blocks left to rebuild/expand */
       u_int8_t        rebuild;        /* drive that is rebuilding */
       u_int16_t       remapcnt[32];   /* count of re3mapped blocks for pds */
       u_int8_t        replaced[4];    /* replaced drives map */
       u_int8_t        spare[4];       /* used spares map */
       u_int8_t        sparestat;      /* spare status */
#define CAC_LD_CONF     0x01    /* spare configured */
#define CAC_LD_RBLD     0x02    /* spare is used and rebuilding */
#define CAC_LD_DONE     0x04    /* spare rebuild done */
#define CAC_LD_FAIL     0x08    /* at least one spare drive has failed */
#define CAC_LD_USED     0x10    /* at least one spare drive is used */
#define CAC_LD_AVAIL    0x20    /* at least one spare is available */
       u_int8_t        sparemap[32];   /* spare->pd replacement map */
       u_int8_t        replok[4];      /* replaced failed map */
       u_int8_t        readyok;        /* ready to become ok */
       u_int8_t        memfail;        /* cache mem failure */
       u_int8_t        expfail;        /* expansion failure */
       u_int8_t        rebldfail;      /* rebuild failure */
#define CAC_LD_RBLD_READ        0x01    /* read failed */
#define CAC_LD_RBLD_WRITE       0x02    /* write fail */
       u_int8_t        bigfailed[16];  /* bigmap vers of same of the above */
       u_int8_t        bigremapcnt[256];
       u_int8_t        bigreplaced[16];
       u_int8_t        bigspare[16];
       u_int8_t        bigsparemap[128];
       u_int8_t        bigreplok[16];
       u_int8_t        bigrebuild;     /* big-number rebuilding driveno */
} __packed;

struct cac_blink {
       u_int32_t       duration;       /* x100ms */
       u_int32_t       elapsed;        /* only for sense */
       u_int8_t        pdtab[256];
#define CAC_BLINK_ALL   1
#define CAC_BLINK_TIMED 2
       u_int8_t        res[248];
} __packed;

struct cac_hdr {
       u_int8_t        drive;          /* logical drive */
       u_int8_t        priority;       /* block priority */
       u_int16_t       size;           /* size of request, in words */
} __packed;

struct cac_req {
       u_int16_t       next;           /* offset of next request */
       u_int8_t        command;        /* command */
       u_int8_t        error;          /* return error code */
       u_int32_t       blkno;          /* block number */
       u_int16_t       bcount;         /* block count */
       u_int8_t        sgcount;        /* number of scatter/gather entries */
       u_int8_t        reserved;       /* reserved */
} __packed;

struct cac_sgb {
       u_int32_t       length;         /* length of S/G segment */
       u_int32_t       addr;           /* physical address of block */
} __packed;

#endif  /* !_IC_CACREG_H_ */

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