drivers/scsi/ini9100u.h

   1 /**************************************************************************
   2  * Initio 9100 device driver for Linux.
   3  *
   4  * Copyright (c) 1994-1998 Initio Corporation
   5  * All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * --------------------------------------------------------------------------
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the above copyright
  27  *    notice, this list of conditions, and the following disclaimer,
  28  *    without modification, immediately at the beginning of the file.
  29  * 2. Redistributions in binary form must reproduce the above copyright
  30  *    notice, this list of conditions and the following disclaimer in the
  31  *    documentation and/or other materials provided with the distribution.
  32  * 3. The name of the author may not be used to endorse or promote products
  33  *    derived from this software without specific prior written permission.
  34  *
  35  * Where this Software is combined with software released under the terms of
  36  * the GNU Public License ("GPL") and the terms of the GPL would require the
  37  * combined work to also be released under the terms of the GPL, the terms
  38  * and conditions of this License will apply in addition to those of the
  39  * GPL with the exception of any terms or conditions of this License that
  40  * conflict with, or are expressly prohibited by, the GPL.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  43  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  44  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  45  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  46  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  50  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  51  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  *
  54  *************************************************************************
  55  *
  56  * Module: ini9100u.h
  57  * Description: INI-9100U/UW LINUX device driver header
  58  * Revision History:
  59  * 06/18/96 Harry Chen, Initial Version 1.00A (Beta)
  60  * 06/23/98 hc  - v1.01k
  61  *              - Get it work for kernel version >= 2.1.75
  62  * 12/09/98 bv  - v1.03a
  63  *              - Removed unused code
  64  * 12/13/98 bv  - v1.03b
  65  *              - Add spinlocks to HCS structure.
  66  * 21/01/99 bv  - v1.03e
  67  *              - Added PCI_ID structure
  68  **************************************************************************/
  69
  70 #ifndef CVT_LINUX_VERSION
  71 #define CVT_LINUX_VERSION(V,P,S)        (((V) * 65536) + ((P) * 256) + (S))
  72 #endif
  73
  74 #ifndef LINUX_VERSION_CODE
  75 #include <linux/version.h>
  76 #endif
  77
  78 #include "sd.h"
  79
  80 extern int i91u_detect(Scsi_Host_Template *);
  81 extern int i91u_release(struct Scsi_Host *);
  82 extern int i91u_command(Scsi_Cmnd *);
  83 extern int i91u_queue(Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
  84 extern int i91u_abort(Scsi_Cmnd *);
  85 extern int i91u_reset(Scsi_Cmnd *, unsigned int);
  86 extern int i91u_biosparam(Scsi_Disk *, kdev_t, int *);  /*for linux v2.0 */
  87
  88 #define i91u_REVID "Initio INI-9X00U/UW SCSI device driver; Revision: 1.03g"
  89
  90 #define INI9100U        { \
  91         next:           NULL,                                           \
  92         module:         NULL,                                           \
  93         proc_name:      "INI9100U", \
  94         proc_info:      NULL,                           \
  95         name:           i91u_REVID, \
  96         detect:         i91u_detect, \
  97         release:        i91u_release, \
  98         info:           NULL,                                   \
  99         command:        i91u_command, \
 100         queuecommand:   i91u_queue, \
 101         eh_strategy_handler: NULL, \
 102         eh_abort_handler: NULL, \
 103         eh_device_reset_handler: NULL, \
 104         eh_bus_reset_handler: NULL, \
 105         eh_host_reset_handler: NULL, \
 106         abort:          i91u_abort, \
 107         reset:          i91u_reset, \
 108         slave_attach:   NULL, \
 109         bios_param:     i91u_biosparam, \
 110         can_queue:      1, \
 111         this_id:        1, \
 112         sg_tablesize:   SG_ALL, \
 113         cmd_per_lun:    1, \
 114         present:        0, \
 115         unchecked_isa_dma: 0, \
 116         use_clustering: ENABLE_CLUSTERING, \
 117  use_new_eh_code: 0 \
 118 }
 119
 120 #define VIRT_TO_BUS(i)  (unsigned int) virt_to_bus((void *)(i))
 121 #define ULONG   unsigned long
 122 #define USHORT  unsigned short
 123 #define UCHAR   unsigned char
 124 #define BYTE    unsigned char
 125 #define WORD    unsigned short
 126 #define DWORD   unsigned long
 127 #define UBYTE   unsigned char
 128 #define UWORD   unsigned short
 129 #define UDWORD  unsigned long
 130 #ifdef ALPHA
 131 #define U32   unsigned int
 132 #else
 133 #define U32   unsigned long
 134 #endif
 135
 136 #ifndef NULL
 137 #define NULL     0              /* zero          */
 138 #endif
 139 #ifndef TRUE
 140 #define TRUE     (1)            /* boolean true  */
 141 #endif
 142 #ifndef FALSE
 143 #define FALSE    (0)            /* boolean false */
 144 #endif
 145 #ifndef FAILURE
 146 #define FAILURE  (-1)
 147 #endif
 148
 149 #define i91u_MAXQUEUE           2
 150 #define TOTAL_SG_ENTRY          32
 151 #define MAX_TARGETS             16
 152 #define SENSE_SIZE              14
 153
 154 #define INI_VENDOR_ID   0x1101  /* Initio's PCI vendor ID       */
 155 #define DMX_VENDOR_ID   0x134a  /* Domex's PCI vendor ID        */
 156 #define I950_DEVICE_ID  0x9500  /* Initio's inic-950 product ID   */
 157 #define I940_DEVICE_ID  0x9400  /* Initio's inic-940 product ID   */
 158 #define I935_DEVICE_ID  0x9401  /* Initio's inic-935 product ID   */
 159 #define I920_DEVICE_ID  0x0002  /* Initio's other product ID      */
 160
 161 /************************************************************************/
 162 /*              Vendor ID/Device ID Pair Structure                      */
 163 /************************************************************************/
 164 typedef struct PCI_ID_Struc {
 165         unsigned short vendor_id;
 166         unsigned short device_id;
 167 } PCI_ID;
 168
 169 /************************************************************************/
 170 /*              Scatter-Gather Element Structure                        */
 171 /************************************************************************/
 172 typedef struct SG_Struc {
 173         U32 SG_Ptr;             /* Data Pointer */
 174         U32 SG_Len;             /* Data Length */
 175 } SG;
 176
 177 /***********************************************************************
 178                 SCSI Control Block
 179 ************************************************************************/
 180 typedef struct Scsi_Ctrl_Blk {
 181         U32 SCB_InitioReserved[9];      /* 0 */
 182
 183         UBYTE SCB_Opcode;       /*24 SCB command code */
 184         UBYTE SCB_Flags;        /*25 SCB Flags */
 185         UBYTE SCB_Target;       /*26 Target Id */
 186         UBYTE SCB_Lun;          /*27 Lun */
 187         U32 SCB_BufPtr;         /*28 Data Buffer Pointer */
 188         U32 SCB_BufLen;         /*2C Data Allocation Length */
 189         UBYTE SCB_SGLen;        /*30 SG list # */
 190         UBYTE SCB_SenseLen;     /*31 Sense Allocation Length */
 191         UBYTE SCB_HaStat;       /*32 */
 192         UBYTE SCB_TaStat;       /*33 */
 193         UBYTE SCB_CDBLen;       /*34 CDB Length */
 194         UBYTE SCB_Ident;        /*35 Identify */
 195         UBYTE SCB_TagMsg;       /*36 Tag Message */
 196         UBYTE SCB_TagId;        /*37 Queue Tag */
 197         UBYTE SCB_CDB[12];      /*38 */
 198         U32 SCB_SGPAddr;        /*44 SG List/Sense Buf phy. Addr. */
 199         U32 SCB_SensePtr;       /*48 Sense data pointer */
 200         void (*SCB_Post) (BYTE *, BYTE *);      /*4C POST routine */
 201         Scsi_Cmnd *SCB_Srb;     /*50 SRB Pointer */
 202         SG SCB_SGList[TOTAL_SG_ENTRY];  /*54 Start of SG list */
 203 } SCB;
 204
 205 /* Opcodes of SCB_Opcode */
 206 #define ExecSCSI        0x1
 207 #define BusDevRst       0x2
 208 #define AbortCmd        0x3
 209
 210 /* Bit Definition for SCB_Flags */
 211 #define SCF_DONE        0x01
 212 #define SCF_POST        0x02
 213 #define SCF_SENSE       0x04
 214 #define SCF_DIR         0x18
 215 #define SCF_NO_DCHK     0x00
 216 #define SCF_DIN         0x08
 217 #define SCF_DOUT        0x10
 218 #define SCF_NO_XF       0x18
 219 #define SCF_POLL        0x40
 220 #define SCF_SG          0x80
 221
 222 /* Error Codes for SCB_HaStat */
 223 #define HOST_SEL_TOUT   0x11
 224 #define HOST_DO_DU      0x12
 225 #define HOST_BUS_FREE   0x13
 226 #define HOST_BAD_PHAS   0x14
 227 #define HOST_INV_CMD    0x16
 228 #define HOST_SCSI_RST   0x1B
 229 #define HOST_DEV_RST    0x1C
 230
 231 /* Error Codes for SCB_TaStat */
 232 #define TARGET_CHKCOND  0x02
 233 #define TARGET_BUSY     0x08
 234
 235 /* Queue tag msg: Simple_quque_tag, Head_of_queue_tag, Ordered_queue_tag */
 236 #define MSG_STAG        0x20
 237 #define MSG_HTAG        0x21
 238 #define MSG_OTAG        0x22
 239
 240 /***********************************************************************
 241                 Target Device Control Structure
 242 **********************************************************************/
 243
 244 typedef struct Tar_Ctrl_Struc {
 245         ULONG TCS_InitioReserved;       /* 0 */
 246
 247         UWORD TCS_DrvFlags;     /* 4 */
 248         UBYTE TCS_DrvHead;      /* 6 */
 249         UBYTE TCS_DrvSector;    /* 7 */
 250 } TCS;
 251
 252 /***********************************************************************
 253                 Target Device Control Structure
 254 **********************************************************************/
 255 /* Bit Definition for TCF_DrvFlags */
 256 #define TCF_DRV_255_63          0x0400
 257
 258 /***********************************************************************
 259               Host Adapter Control Structure
 260 ************************************************************************/
 261 typedef struct Ha_Ctrl_Struc {
 262         UWORD HCS_Base;         /* 00 */
 263         UWORD HCS_BIOS;         /* 02 */
 264         UBYTE HCS_Intr;         /* 04 */
 265         UBYTE HCS_SCSI_ID;      /* 05 */
 266         UBYTE HCS_MaxTar;       /* 06 */
 267         UBYTE HCS_NumScbs;      /* 07 */
 268
 269         UBYTE HCS_Flags;        /* 08 */
 270         UBYTE HCS_Index;        /* 09 */
 271         UBYTE HCS_Reserved[2];  /* 0a */
 272         ULONG HCS_InitioReserved[27];   /* 0C */
 273         TCS HCS_Tcs[16];        /* 78 -> 16 Targets */
 274         Scsi_Cmnd *pSRB_head;   /* SRB save queue header     */
 275         Scsi_Cmnd *pSRB_tail;   /* SRB save queue tail       */
 276         spinlock_t HCS_AvailLock;
 277         spinlock_t HCS_SemaphLock;
 278         spinlock_t pSRB_lock;
 279 } HCS;
 280
 281 /* Bit Definition for HCB_Flags */
 282 #define HCF_EXPECT_RESET        0x10
 283
 284 /* SCSI related definition                                              */
 285 #define DISC_NOT_ALLOW          0x80    /* Disconnect is not allowed    */
 286 #define DISC_ALLOW              0xC0    /* Disconnect is allowed        */