drivers/scsi/tmscsim.h

   1 /***********************************************************************
   2 ;*      File Name : TMSCSIM.H                                          *
   3 ;*                  TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter  *
   4 ;*                  Device Driver                                      *
   5 ;***********************************************************************/
   6 /* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */
   7
   8 #ifndef _TMSCSIM_H
   9 #define _TMSCSIM_H
  10
  11 #include <linux/types.h>
  12
  13 #define SCSI_IRQ_NONE 255
  14
  15 #define MAX_ADAPTER_NUM         4
  16 #define MAX_SG_LIST_BUF         16      /* Not used */
  17 #define MAX_SCSI_ID             8
  18 #define MAX_SRB_CNT             50      /* Max number of started commands */
  19
  20 #define SEL_TIMEOUT             153     /* 250 ms selection timeout (@ 40 MHz) */
  21
  22 /*
  23 ;-----------------------------------------------------------------------
  24 ; SCSI Request Block
  25 ;-----------------------------------------------------------------------
  26 */
  27 struct dc390_srb
  28 {
  29 //u8            CmdBlock[12];
  30
  31 struct dc390_srb        *pNextSRB;
  32 struct dc390_dcb        *pSRBDCB;
  33 struct scsi_cmnd        *pcmd;
  34 struct scatterlist      *pSegmentList;
  35
  36 struct scatterlist Segmentx;    /* make a one entry of S/G list table */
  37
  38 unsigned long   SGBusAddr;      /*;a segment starting address as seen by AM53C974A
  39                                   in CPU endianness. We're only getting 32-bit bus
  40                                   addresses by default */
  41 unsigned long   SGToBeXferLen;  /*; to be xfer length */
  42 unsigned long   TotalXferredLen;
  43 unsigned long   SavedTotXLen;
  44 unsigned long   Saved_Ptr;
  45 u32             SRBState;
  46
  47 u8              SRBStatus;
  48 u8              SRBFlag;        /*; b0-AutoReqSense,b6-Read,b7-write */
  49                                 /*; b4-settimeout,b5-Residual valid */
  50 u8              AdaptStatus;
  51 u8              TargetStatus;
  52
  53 u8              ScsiPhase;
  54 s8              TagNumber;
  55 u8              SGIndex;
  56 u8              SGcount;
  57
  58 u8              MsgCnt;
  59 u8              EndMessage;
  60
  61 u8              MsgInBuf[6];
  62 u8              MsgOutBuf[6];
  63
  64 //u8            IORBFlag;       /*;81h-Reset, 2-retry */
  65 };
  66
  67
  68 /*
  69 ;-----------------------------------------------------------------------
  70 ; Device Control Block
  71 ;-----------------------------------------------------------------------
  72 */
  73 struct dc390_dcb
  74 {
  75 struct dc390_dcb        *pNextDCB;
  76 struct dc390_acb        *pDCBACB;
  77
  78 /* Queued SRBs */
  79 struct dc390_srb        *pGoingSRB;
  80 struct dc390_srb        *pGoingLast;
  81 struct dc390_srb        *pActiveSRB;
  82 u8              GoingSRBCnt;
  83
  84 u32             TagMask;
  85
  86 u8              TargetID;       /*; SCSI Target ID  (SCSI Only) */
  87 u8              TargetLUN;      /*; SCSI Log.  Unit (SCSI Only) */
  88 u8              DevMode;
  89 u8              DCBFlag;
  90
  91 u8              CtrlR1;
  92 u8              CtrlR3;
  93 u8              CtrlR4;
  94
  95 u8              SyncMode;       /*; 0:async mode */
  96 u8              NegoPeriod;     /*;for nego. */
  97 u8              SyncPeriod;     /*;for reg. */
  98 u8              SyncOffset;     /*;for reg. and nego.(low nibble) */
  99 };
 100
 101
 102 /*
 103 ;-----------------------------------------------------------------------
 104 ; Adapter Control Block
 105 ;-----------------------------------------------------------------------
 106 */
 107 struct dc390_acb
 108 {
 109 struct Scsi_Host *pScsiHost;
 110 u16             IOPortBase;
 111 u8              IRQLevel;
 112 u8              status;
 113
 114 u8              SRBCount;
 115 u8              AdapterIndex;   /*; nth Adapter this driver */
 116 u8              DCBCnt;
 117
 118 u8              TagMaxNum;
 119 u8              ACBFlag;
 120 u8              Gmode2;
 121 u8              scan_devices;
 122
 123 struct dc390_dcb        *pLinkDCB;
 124 struct dc390_dcb        *pLastDCB;
 125 struct dc390_dcb        *pDCBRunRobin;
 126
 127 struct dc390_dcb        *pActiveDCB;
 128 struct dc390_srb        *pFreeSRB;
 129 struct dc390_srb        *pTmpSRB;
 130
 131 u8              msgin123[4];
 132 u8              Connected;
 133 u8              pad;
 134
 135 #if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0)
 136 spinlock_t      lock;
 137 #endif
 138 u8              sel_timeout;
 139 u8              glitch_cfg;
 140
 141 u8              MsgLen;
 142 u8              Ignore_IRQ;     /* Not used */
 143
 144 struct pci_dev  *pdev;
 145
 146 unsigned long   Cmds;
 147 u32             SelLost;
 148 u32             SelConn;
 149 u32             CmdInQ;
 150 u32             CmdOutOfSRB;
 151
 152 struct dc390_srb        TmpSRB;
 153 struct dc390_srb        SRB_array[MAX_SRB_CNT];         /* 50 SRBs */
 154 };
 155
 156
 157 /*;-----------------------------------------------------------------------*/
 158
 159
 160 #define BIT31   0x80000000
 161 #define BIT30   0x40000000
 162 #define BIT29   0x20000000
 163 #define BIT28   0x10000000
 164 #define BIT27   0x08000000
 165 #define BIT26   0x04000000
 166 #define BIT25   0x02000000
 167 #define BIT24   0x01000000
 168 #define BIT23   0x00800000
 169 #define BIT22   0x00400000
 170 #define BIT21   0x00200000
 171 #define BIT20   0x00100000
 172 #define BIT19   0x00080000
 173 #define BIT18   0x00040000
 174 #define BIT17   0x00020000
 175 #define BIT16   0x00010000
 176 #define BIT15   0x00008000
 177 #define BIT14   0x00004000
 178 #define BIT13   0x00002000
 179 #define BIT12   0x00001000
 180 #define BIT11   0x00000800
 181 #define BIT10   0x00000400
 182 #define BIT9    0x00000200
 183 #define BIT8    0x00000100
 184 #define BIT7    0x00000080
 185 #define BIT6    0x00000040
 186 #define BIT5    0x00000020
 187 #define BIT4    0x00000010
 188 #define BIT3    0x00000008
 189 #define BIT2    0x00000004
 190 #define BIT1    0x00000002
 191 #define BIT0    0x00000001
 192
 193 /*;---UnitCtrlFlag */
 194 #define UNIT_ALLOCATED  BIT0
 195 #define UNIT_INFO_CHANGED BIT1
 196 #define FORMATING_MEDIA BIT2
 197 #define UNIT_RETRY      BIT3
 198
 199 /*;---UnitFlags */
 200 #define DASD_SUPPORT    BIT0
 201 #define SCSI_SUPPORT    BIT1
 202 #define ASPI_SUPPORT    BIT2
 203
 204 /*;----SRBState machine definition */
 205 #define SRB_FREE        0
 206 #define SRB_WAIT        BIT0
 207 #define SRB_READY       BIT1
 208 #define SRB_MSGOUT      BIT2    /*;arbitration+msg_out 1st byte*/
 209 #define SRB_MSGIN       BIT3
 210 #define SRB_MSGIN_MULTI BIT4
 211 #define SRB_COMMAND     BIT5
 212 #define SRB_START_      BIT6    /*;arbitration+msg_out+command_out*/
 213 #define SRB_DISCONNECT  BIT7
 214 #define SRB_DATA_XFER   BIT8
 215 #define SRB_XFERPAD     BIT9
 216 #define SRB_STATUS      BIT10
 217 #define SRB_COMPLETED   BIT11
 218 #define SRB_ABORT_SENT  BIT12
 219 #define DO_SYNC_NEGO    BIT13
 220 #define SRB_UNEXPECT_RESEL BIT14
 221
 222 /*;---SRBstatus */
 223 #define SRB_OK          BIT0
 224 #define ABORTION        BIT1
 225 #define OVER_RUN        BIT2
 226 #define UNDER_RUN       BIT3
 227 #define PARITY_ERROR    BIT4
 228 #define SRB_ERROR       BIT5
 229
 230 /*;---ACBFlag */
 231 #define RESET_DEV       BIT0
 232 #define RESET_DETECT    BIT1
 233 #define RESET_DONE      BIT2
 234
 235 /*;---DCBFlag */
 236 #define ABORT_DEV_      BIT0
 237
 238 /*;---SRBFlag */
 239 #define DATAOUT         BIT7
 240 #define DATAIN          BIT6
 241 #define RESIDUAL_VALID  BIT5
 242 #define ENABLE_TIMER    BIT4
 243 #define RESET_DEV0      BIT2
 244 #define ABORT_DEV       BIT1
 245 #define AUTO_REQSENSE   BIT0
 246
 247 /*;---Adapter status */
 248 #define H_STATUS_GOOD    0
 249 #define H_SEL_TIMEOUT    0x11
 250 #define H_OVER_UNDER_RUN 0x12
 251 #define H_UNEXP_BUS_FREE 0x13
 252 #define H_TARGET_PHASE_F 0x14
 253 #define H_INVALID_CCB_OP 0x16
 254 #define H_LINK_CCB_BAD   0x17
 255 #define H_BAD_TARGET_DIR 0x18
 256 #define H_DUPLICATE_CCB  0x19
 257 #define H_BAD_CCB_OR_SG  0x1A
 258 #define H_ABORT          0x0FF
 259
 260 /* cmd->result */
 261 #define RES_TARGET              0x000000FF      /* Target State */
 262 #define RES_TARGET_LNX          STATUS_MASK     /* Only official ... */
 263 #define RES_ENDMSG              0x0000FF00      /* End Message */
 264 #define RES_DID                 0x00FF0000      /* DID_ codes */
 265 #define RES_DRV                 0xFF000000      /* DRIVER_ codes */
 266
 267 #define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
 268 #define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
 269
 270 #define SET_RES_TARGET(who, tgt) do { who &= ~RES_TARGET; who |= (int)(tgt); } while (0)
 271 #define SET_RES_TARGET_LNX(who, tgt) do { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; } while (0)
 272 #define SET_RES_MSG(who, msg) do { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; } while (0)
 273 #define SET_RES_DID(who, did) do { who &= ~RES_DID; who |= (int)(did) << 16; } while (0)
 274 #define SET_RES_DRV(who, drv) do { who &= ~RES_DRV; who |= (int)(drv) << 24; } while (0)
 275
 276 /*;---Sync_Mode */
 277 #define SYNC_DISABLE    0
 278 #define SYNC_ENABLE     BIT0
 279 #define SYNC_NEGO_DONE  BIT1
 280 #define WIDE_ENABLE     BIT2    /* Not used ;-) */
 281 #define WIDE_NEGO_DONE  BIT3    /* Not used ;-) */
 282 #define EN_TAG_QUEUEING BIT4
 283 #define EN_ATN_STOP     BIT5
 284
 285 #define SYNC_NEGO_OFFSET 15
 286
 287 /*;---SCSI bus phase*/
 288 #define SCSI_DATA_OUT   0
 289 #define SCSI_DATA_IN    1
 290 #define SCSI_COMMAND    2
 291 #define SCSI_STATUS_    3
 292 #define SCSI_NOP0       4
 293 #define SCSI_NOP1       5
 294 #define SCSI_MSG_OUT    6
 295 #define SCSI_MSG_IN     7
 296
 297 /*;----SCSI MSG BYTE*/ /* see scsi/scsi.h */ /* One is missing ! */
 298 #define ABORT_TAG       0x0d
 299
 300 /*
 301  *      SISC query queue
 302  */
 303 typedef struct {
 304         dma_addr_t              saved_dma_handle;
 305 } dc390_cmd_scp_t;
 306
 307 /*
 308 ;==========================================================
 309 ; EEPROM byte offset
 310 ;==========================================================
 311 */
 312 typedef  struct  _EEprom
 313 {
 314 u8      EE_MODE1;
 315 u8      EE_SPEED;
 316 u8      xx1;
 317 u8      xx2;
 318 } EEprom, *PEEprom;
 319
 320 #define REAL_EE_ADAPT_SCSI_ID 64
 321 #define REAL_EE_MODE2   65
 322 #define REAL_EE_DELAY   66
 323 #define REAL_EE_TAG_CMD_NUM     67
 324
 325 #define EE_ADAPT_SCSI_ID 32
 326 #define EE_MODE2        33
 327 #define EE_DELAY        34
 328 #define EE_TAG_CMD_NUM  35
 329
 330 #define EE_LEN          40
 331
 332 /*; EE_MODE1 bits definition*/
 333 #define PARITY_CHK_     BIT0
 334 #define SYNC_NEGO_      BIT1
 335 #define EN_DISCONNECT_  BIT2
 336 #define SEND_START_     BIT3
 337 #define TAG_QUEUEING_   BIT4
 338
 339 /*; EE_MODE2 bits definition*/
 340 #define MORE2_DRV       BIT0
 341 #define GREATER_1G      BIT1
 342 #define RST_SCSI_BUS    BIT2
 343 #define ACTIVE_NEGATION BIT3
 344 #define NO_SEEK         BIT4
 345 #define LUN_CHECK       BIT5
 346
 347 #define ENABLE_CE       1
 348 #define DISABLE_CE      0
 349 #define EEPROM_READ     0x80
 350
 351 /*
 352 ;==========================================================
 353 ;       AMD 53C974 Registers bit Definition
 354 ;==========================================================
 355 */
 356 /*
 357 ;====================
 358 ; SCSI Register
 359 ;====================
 360 */
 361
 362 /*; Command Reg.(+0CH) (rw) */
 363 #define DMA_COMMAND             BIT7
 364 #define NOP_CMD                 0
 365 #define CLEAR_FIFO_CMD          1
 366 #define RST_DEVICE_CMD          2
 367 #define RST_SCSI_BUS_CMD        3
 368
 369 #define INFO_XFER_CMD           0x10
 370 #define INITIATOR_CMD_CMPLTE    0x11
 371 #define MSG_ACCEPTED_CMD        0x12
 372 #define XFER_PAD_BYTE           0x18
 373 #define SET_ATN_CMD             0x1A
 374 #define RESET_ATN_CMD           0x1B
 375
 376 #define SEL_WO_ATN              0x41    /* currently not used */
 377 #define SEL_W_ATN               0x42
 378 #define SEL_W_ATN_STOP          0x43
 379 #define SEL_W_ATN3              0x46
 380 #define EN_SEL_RESEL            0x44
 381 #define DIS_SEL_RESEL           0x45    /* currently not used */
 382 #define RESEL                   0x40    /* " */
 383 #define RESEL_ATN3              0x47    /* " */
 384
 385 #define DATA_XFER_CMD           INFO_XFER_CMD
 386
 387
 388 /*; SCSI Status Reg.(+10H) (r) */
 389 #define INTERRUPT               BIT7
 390 #define ILLEGAL_OP_ERR          BIT6
 391 #define PARITY_ERR              BIT5
 392 #define COUNT_2_ZERO            BIT4
 393 #define GROUP_CODE_VALID        BIT3
 394 #define SCSI_PHASE_MASK         (BIT2+BIT1+BIT0)
 395 /* BIT2: MSG phase; BIT1: C/D physe; BIT0: I/O phase */
 396
 397 /*; Interrupt Status Reg.(+14H) (r) */
 398 #define SCSI_RESET              BIT7
 399 #define INVALID_CMD             BIT6
 400 #define DISCONNECTED            BIT5
 401 #define SERVICE_REQUEST         BIT4
 402 #define SUCCESSFUL_OP           BIT3
 403 #define RESELECTED              BIT2
 404 #define SEL_ATTENTION           BIT1
 405 #define SELECTED                BIT0
 406
 407 /*; Internal State Reg.(+18H) (r) */
 408 #define SYNC_OFFSET_FLAG        BIT3
 409 #define INTRN_STATE_MASK        (BIT2+BIT1+BIT0)
 410 /* 0x04: Sel. successful (w/o stop), 0x01: Sel. successful (w/ stop) */
 411
 412 /*; Clock Factor Reg.(+24H) (w) */
 413 #define CLK_FREQ_40MHZ          0
 414 #define CLK_FREQ_35MHZ          (BIT2+BIT1+BIT0)
 415 #define CLK_FREQ_30MHZ          (BIT2+BIT1)
 416 #define CLK_FREQ_25MHZ          (BIT2+BIT0)
 417 #define CLK_FREQ_20MHZ          BIT2
 418 #define CLK_FREQ_15MHZ          (BIT1+BIT0)
 419 #define CLK_FREQ_10MHZ          BIT1
 420
 421 /*; Control Reg. 1(+20H) (rw) */
 422 #define EXTENDED_TIMING         BIT7
 423 #define DIS_INT_ON_SCSI_RST     BIT6
 424 #define PARITY_ERR_REPO         BIT4
 425 #define SCSI_ID_ON_BUS          (BIT2+BIT1+BIT0) /* host adapter ID */
 426
 427 /*; Control Reg. 2(+2CH) (rw) */
 428 #define EN_FEATURE              BIT6
 429 #define EN_SCSI2_CMD            BIT3
 430
 431 /*; Control Reg. 3(+30H) (rw) */
 432 #define ID_MSG_CHECK            BIT7
 433 #define EN_QTAG_MSG             BIT6
 434 #define EN_GRP2_CMD             BIT5
 435 #define FAST_SCSI               BIT4    /* ;10MB/SEC */
 436 #define FAST_CLK                BIT3    /* ;25 - 40 MHZ */
 437
 438 /*; Control Reg. 4(+34H) (rw) */
 439 #define EATER_12NS              0
 440 #define EATER_25NS              BIT7
 441 #define EATER_35NS              BIT6
 442 #define EATER_0NS               (BIT7+BIT6)
 443 #define REDUCED_POWER           BIT5
 444 #define CTRL4_RESERVED          BIT4    /* must be 1 acc. to AM53C974.c */
 445 #define NEGATE_REQACKDATA       BIT2
 446 #define NEGATE_REQACK           BIT3
 447
 448 #define GLITCH_TO_NS(x) (((~x>>6 & 2) >> 1) | ((x>>6 & 1) << 1 ^ (x>>6 & 2)))
 449 #define NS_TO_GLITCH(y) (((~y<<7) | ~((y<<6) ^ ((y<<5 & 1<<6) | ~0x40))) & 0xc0)
 450
 451 /*
 452 ;====================
 453 ; DMA Register
 454 ;====================
 455 */
 456 /*; DMA Command Reg.(+40H) (rw) */
 457 #define READ_DIRECTION          BIT7
 458 #define WRITE_DIRECTION         0
 459 #define EN_DMA_INT              BIT6
 460 #define EN_PAGE_INT             BIT5    /* page transfer interrupt enable */
 461 #define MAP_TO_MDL              BIT4
 462 #define DIAGNOSTIC              BIT2
 463 #define DMA_IDLE_CMD            0
 464 #define DMA_BLAST_CMD           BIT0
 465 #define DMA_ABORT_CMD           BIT1
 466 #define DMA_START_CMD           (BIT1+BIT0)
 467
 468 /*; DMA Status Reg.(+54H) (r) */
 469 #define PCI_MS_ABORT            BIT6
 470 #define BLAST_COMPLETE          BIT5
 471 #define SCSI_INTERRUPT          BIT4
 472 #define DMA_XFER_DONE           BIT3
 473 #define DMA_XFER_ABORT          BIT2
 474 #define DMA_XFER_ERROR          BIT1
 475 #define POWER_DOWN              BIT0
 476
 477 /*; DMA SCSI Bus and Ctrl.(+70H) */
 478 #define EN_INT_ON_PCI_ABORT     BIT25
 479 #define WRT_ERASE_DMA_STAT      BIT24
 480 #define PW_DOWN_CTRL            BIT21
 481 #define SCSI_BUSY               BIT20
 482 #define SCLK                    BIT19
 483 #define SCAM                    BIT18
 484 #define SCSI_LINES              0x0003ffff
 485
 486 /*
 487 ;==========================================================
 488 ; SCSI Chip register address offset
 489 ;==========================================================
 490 ;Registers are rw unless declared otherwise
 491 */
 492 #define CtcReg_Low      0x00    /* r    curr. transfer count */
 493 #define CtcReg_Mid      0x04    /* r */
 494 #define CtcReg_High     0x38    /* r */
 495 #define ScsiFifo        0x08
 496 #define ScsiCmd         0x0C
 497 #define Scsi_Status     0x10    /* r */
 498 #define INT_Status      0x14    /* r */
 499 #define Sync_Period     0x18    /* w */
 500 #define Sync_Offset     0x1C    /* w */
 501 #define Clk_Factor      0x24    /* w */
 502 #define CtrlReg1        0x20
 503 #define CtrlReg2        0x2C
 504 #define CtrlReg3        0x30
 505 #define CtrlReg4        0x34
 506 #define DMA_Cmd         0x40
 507 #define DMA_XferCnt     0x44    /* rw   starting transfer count (32 bit) */
 508 #define DMA_XferAddr    0x48    /* rw   starting physical address (32 bit) */
 509 #define DMA_Wk_ByteCntr 0x4C    /* r    working byte counter */
 510 #define DMA_Wk_AddrCntr 0x50    /* r    working address counter */
 511 #define DMA_Status      0x54    /* r */
 512 #define DMA_MDL_Addr    0x58    /* rw   starting MDL address */
 513 #define DMA_Wk_MDL_Cntr 0x5C    /* r    working MDL counter */
 514 #define DMA_ScsiBusCtrl 0x70    /* rw   SCSI Bus, PCI/DMA Ctrl */
 515
 516 #define StcReg_Low      CtcReg_Low      /* w    start transfer count */
 517 #define StcReg_Mid      CtcReg_Mid      /* w */
 518 #define StcReg_High     CtcReg_High     /* w */
 519 #define Scsi_Dest_ID    Scsi_Status     /* w */
 520 #define Scsi_TimeOut    INT_Status      /* w */
 521 #define Intern_State    Sync_Period     /* r */
 522 #define Current_Fifo    Sync_Offset     /* r    Curr. FIFO / int. state */
 523
 524
 525 #define DC390_read8(address)                    \
 526         (inb (pACB->IOPortBase + (address)))
 527
 528 #define DC390_read8_(address, base)             \
 529         (inb ((u16)(base) + (address)))
 530
 531 #define DC390_read16(address)                   \
 532         (inw (pACB->IOPortBase + (address)))
 533
 534 #define DC390_read32(address)                   \
 535         (inl (pACB->IOPortBase + (address)))
 536
 537 #define DC390_write8(address,value)             \
 538         outb ((value), pACB->IOPortBase + (address))
 539
 540 #define DC390_write8_(address,value,base)       \
 541         outb ((value), (u16)(base) + (address))
 542
 543 #define DC390_write16(address,value)            \
 544         outw ((value), pACB->IOPortBase + (address))
 545
 546 #define DC390_write32(address,value)            \
 547         outl ((value), pACB->IOPortBase + (address))
 548
 549
 550 #endif /* _TMSCSIM_H */