drivers/scsi/buslogic.h

/* */
   1 /*
   2  *      buslogic.h      (C) 1993 David B. Gentzel
   3  *      Low-level scsi driver for BusLogic adapters
   4  *      by David B. Gentzel, Whitfield Software Services, Carnegie, PA
   5  *          (gentzel@nova.enet.dec.com)
   6  *      Thanks to BusLogic for providing the necessary documentation
   7  *
   8  *      The original version of this driver was derived from aha1542.[ch] which
   9  *      is Copyright (C) 1992 Tommy Thorn.  Much has been reworked, but most of
  10  *      basic structure and substantial chunks of code still remain.
  11  */
  12 
  13 #ifndef _BUSLOGIC_H
  14 
  15 int buslogic_detect(Scsi_Host_Template *);
  16 int buslogic_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
  17 int buslogic_abort(Scsi_Cmnd *);
  18 const char *buslogic_info(void);
  19 int buslogic_reset(Scsi_Cmnd *);
  20 int buslogic_biosparam(Disk *, int, int *);
  21 
  22 #define BUSLOGIC_CMDLUN 1       /* Do not set this too high.  It sucks
  23                                    up lots of memory on machines with > 16Mb
  24                                    because of the huge number of bounce
  25                                    buffers that need to be allocated.
  26                                    For boards that use non-ISA bus, we can
  27                                    bump this in the board detect routine.  
  28                                                         10/8/94 ERY */
  29                                    
  30 
  31 #define BUSLOGIC { NULL,                        \
  32                    "BusLogic",                  \
  33                    buslogic_detect,             \
  34                    NULL,                        \
  35                    buslogic_info,               \
  36                    0,   /* no command func */   \
  37                    buslogic_queuecommand,       \
  38                    buslogic_abort,              \
  39                    buslogic_reset,              \
  40                    0,   /* slave_attach NYI */  \
  41                    buslogic_biosparam,          \
  42                    0,   /* set by driver */     \
  43                    0,   /* set by driver */     \
  44                    0,   /* set by driver */     \
  45                    BUSLOGIC_CMDLUN,             \
  46                    0,                           \
  47                    0,   /* set by driver */     \
  48                    ENABLE_CLUSTERING            \
  49                  }
  50 
  51 #ifdef BUSLOGIC_PRIVATE_H
  52 
  53 /* ??? These don't really belong here */
  54 #ifndef TRUE
  55 # define TRUE 1
  56 #endif
  57 #ifndef FALSE
  58 # define FALSE 0
  59 #endif
  60 
  61 #define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr)[0])
  62 
  63 #define PACKED __attribute__((packed))
  64 
  65 #define BD_ABORT        0x0001
  66 #define BD_COMMAND      0x0002
  67 #define BD_DETECT       0x0004
  68 #define BD_INTERRUPT    0x0008
  69 #define BD_RESET        0x0010
  70 
  71 /* I/O Port interface */
  72 /* READ */
  73 #define STATUS(base) (base)
  74 #define DACT 0x80               /* Diagnostic Active */
  75 #define DFAIL 0x40              /* Diagnostic Failure */
  76 #define INREQ 0x20              /* Initialization Required */
  77 #define HARDY 0x10              /* Host Adapter Ready */
  78 #define CPRBSY 0x08             /* Command/Parameter Register Busy */
  79 #define DIRRDY 0x04             /* Data In Register Ready */
  80 #define CMDINV 0x01             /* Command Invalid */
  81 #define STATMASK 0xFD           /* 0x02 is reserved */
  82 
  83 #define DATA_IN(base) (STATUS(base) + 1)
  84 
  85 #define INTERRUPT(base) (STATUS(base) + 2)
  86 #define INTV 0x80               /* Interrupt Valid */
  87 #define RSTS 0x08               /* SCSI Reset State */
  88 #define CMDC 0x04               /* Command Complete */
  89 #define MBOR 0x02               /* Mailbox Out Ready */
  90 #define IMBL 0x01               /* Incoming Mailbox Loaded */
  91 #define INTRMASK 0x8F           /* 0x70 are reserved */
  92 
  93 /* WRITE */
  94 #define CONTROL(base) STATUS(base)
  95 #define RHARD 0x80              /* Hard Reset */
  96 #define RSOFT 0x40              /* Soft Reset */
  97 #define RINT 0x20               /* Interrupt Reset */
  98 #define RSBUS 0x10              /* SCSI Bus Reset */
  99 
 100 #define COMMAND_PARAMETER(base) (STATUS(base) + 1)
 101 #define CMD_TSTCMDCINT 0x00     /* Test CMDC Interrupt */
 102 #define CMD_INITMB 0x01         /* Initialize Mailbox */
 103 #define CMD_START_SCSI 0x02     /* Start Mailbox */
 104 #define CMD_START_BIOS 0x03     /* Start BIOS */
 105 #define CMD_INQUIRY 0x04        /* Inquire Board ID */
 106 #define CMD_ENBOMBRINT 0x05     /* Enable OMBR Interrupt */
 107 #define CMD_SETSELTIMOUT 0x06   /* Set SCSI Selection Time-Out */
 108 #define CMD_BUSON_TIME 0x07     /* Set Bus-On Time */
 109 #define CMD_BUSOFF_TIME 0x08    /* Set Bus-Off Time */
 110 #define CMD_BUSXFR_RATE 0x09    /* Set Bus Transfer Rate */
 111 #define CMD_INQ_DEVICES 0x0A    /* Inquire Installed Devices */
 112 #define CMD_RETCONF 0x0B        /* Return Configuration */
 113 #define CMD_TARGET_MODE 0x0C    /* Set Target Mode */
 114 #define CMD_INQ_SETUP_INFO 0x0D /* Inquire Set-up Information */
 115 #define CMD_WRITE_LCL_RAM 0x1A  /* Write Adapter Local RAM */
 116 #define CMD_READ_LCL_RAM 0x1B   /* Read Adapter Local RAM */
 117 #define CMD_WRITE_BM_FIFO 0x1C  /* Write Bus Master Chip FIFO */
 118 #define CMD_READ_BM_FIFO 0x1D   /* Read Bus Master Chip FIFO */
 119 #define CMD_ECHO 0x1F           /* Echo Data Byte */
 120 #define CMD_HA_DIAG 0x20        /* Host Adapter Diagnostic */
 121 #define CMD_HA_OPTIONS 0x21     /* Host Adapter Options */
 122 #define CMD_INITEXTMB 0x81      /* Initialize Extended Mailbox */
 123 #define CMD_INQEXTSETUP 0x8D    /* Inquire Extended Set-up Information */
 124 #define CMD_WRITE_INQ_BUF 0x9A  /* Write Inquiry Data Buffer
 125                                    (Target Mode Only) */
 126 #define CMD_READ_INQ_BUF 0x9B   /* Read Inquiry Data Buffer
 127                                    (Target Mode Only) */
 128 
 129 #define MBX_NOT_IN_USE 0x00
 130 #define MBX_ACTION_START 0x01
 131 #define MBX_ACTION_ABORT 0x02
 132 #define MBX_COMPLETION_OK 0x01
 133 #define MBX_COMPLETION_ABORTED 0x02
 134 #define MBX_COMPLETION_NOT_FOUND 0x03
 135 #define MBX_COMPLETION_ERROR 0x04
 136 
 137 /* Mailbox Definition */
 138 struct mailbox {
 139     void *ccbptr;               /* lsb, ..., msb */
 140     unsigned char btstat;
 141     unsigned char sdstat;
 142     unsigned char reserved;
 143     unsigned char status;       /* Command/Status */
 144 };
 145 
 146 /* This is used with scatter-gather */
 147 struct chain {
 148     unsigned long datalen;      /* Size of this part of chain */
 149     void *dataptr;              /* Location of data */
 150 };
 151 
 152 #define MAX_CDB 12
 153 
 154 struct ccb {                    /* Command Control Block */
 155     unsigned char op;           /* Command Control Block Operation Code */
 156     unsigned char dir;
 157     unsigned char cdblen;       /* SCSI Command Length */
 158     unsigned char rsalen;       /* Request Sense Allocation Length/Disable */
 159     unsigned long datalen;      /* Data Length (msb, ..., lsb) */
 160     void *dataptr;              /* Data Pointer */
 161     unsigned char reserved[2];
 162     unsigned char hastat;       /* Host Adapter Status (HASTAT) */
 163     unsigned char tarstat;      /* Target Device Status */
 164     unsigned char id;
 165     unsigned char lun;
 166     unsigned char cdb[MAX_CDB];
 167     unsigned char ccbcontrol;
 168     unsigned char commlinkid;   /* Command Linking Identifier */
 169     void *linkptr;              /* Link Pointer */
 170     void *senseptr;
 171 };
 172 
 173 #define CCB_OP_INIT 0x00        /* Initiator CCB */
 174 #define CCB_OP_TARG 0x01        /* Target CCB */
 175 #define CCB_OP_INIT_SG 0x02     /* Initiator CCB with scatter-gather */
 176 #define CCB_OP_INIT_R 0x03      /* Initiator CCB with residual data length
 177                                    returned */
 178 #define CCB_OP_INIT_SG_R 0x04   /* Initiator CCB with scatter-gather and
 179                                    residual data length returned */
 180 #define CCB_OP_BUS_RESET 0x81   /* SCSI bus device reset */
 181 
 182 #endif
 183 
 184 #endif
/* */
root/drivers/scsi/buslogic.h

INCLUDED FROM
