trm.c revision 109623
1/* 2 * O.S : FreeBSD CAM 3 * FILE NAME : trm.c 4 * BY : C.L. Huang (ching@tekram.com.tw) 5 * Erich Chen (erich@tekram.com.tw) 6 * Description: Device Driver for Tekram DC395U/UW/F ,DC315/U 7 * PCI SCSI Bus Master Host Adapter 8 * (SCSI chip set used Tekram ASIC TRM-S1040) 9 * (C)Copyright 1995-1999 Tekram Technology Co., Ltd. 10 */ 11 12/* 13 * HISTORY: 14 * 15 * REV# DATE NAME DESCRIPTION 16 * 1.05 05/01/1999 ERICH CHEN First released for 3.x.x (CAM) 17 * 1.06 07/29/1999 ERICH CHEN Modify for NEW PCI 18 * 1.07 12/12/1999 ERICH CHEN Modify for 3.3.x ,DCB no free 19 * 1.08 06/12/2000 ERICH CHEN Modify for 4.x.x 20 */ 21 22/* 23 * 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 1. Redistributions of source code must retain the above copyright 29 * notice, this list of conditions and the following disclaimer. 30 * 2. Redistributions in binary form must reproduce the above copyright 31 * notice, this list of conditions and the following disclaimer in the 32 * documentation and/or other materials provided with the distribution. 33 * 3. The name of the author may not be used to endorse or promote products 34 * derived from this software without specific prior written permission. 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 37 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 38 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 39 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 40 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 42 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 43 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 44 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 45 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 46 * 47 */ 48 49/* 50 * Imported into FreeBSD source repository, and updated to compile under 51 * FreeBSD-3.0-DEVELOPMENT, by Stefan Esser <se@FreeBSD.Org>, 1996-12-17 52 */ 53 54/* 55 * Updated to compile under FreeBSD 5.0-CURRENT by Olivier Houchard 56 * <doginou@ci0.org>, 2002-03-04 57 */ 58 59#include <sys/cdefs.h> 60__FBSDID("$FreeBSD: head/sys/dev/trm/trm.c 109623 2003-01-21 08:56:16Z alfred $"); 61 62#include <sys/param.h> 63 64#include <sys/systm.h> 65#include <sys/malloc.h> 66#include <sys/queue.h> 67#if __FreeBSD_version >= 500000 68#include <sys/bio.h> 69#endif 70#include <sys/buf.h> 71#include <sys/bus.h> 72#include <sys/kernel.h> 73 74#include <vm/vm.h> 75#include <vm/pmap.h> 76 77#include <pci/pcivar.h> 78#include <pci/pcireg.h> 79#include <machine/resource.h> 80#include <machine/bus_pio.h> 81#include <machine/bus.h> 82#include <machine/clock.h> 83#include <sys/rman.h> 84 85#include <cam/cam.h> 86#include <cam/cam_ccb.h> 87#include <cam/cam_sim.h> 88#include <cam/cam_xpt_sim.h> 89#include <cam/cam_debug.h> 90 91#include <cam/scsi/scsi_all.h> 92 93#include <dev/trm/trm.h> 94 95#define trm_reg_read8(reg) bus_space_read_1(pACB->tag, pACB->bsh, reg) 96#define trm_reg_read16(reg) bus_space_read_2(pACB->tag, pACB->bsh, reg) 97#define trm_reg_read32(reg) bus_space_read_4(pACB->tag, pACB->bsh, reg) 98#define trm_reg_write8(value,reg) bus_space_write_1(pACB->tag, pACB->bsh,\ 99 reg, value) 100#define trm_reg_write16(value,reg) bus_space_write_2(pACB->tag, pACB->bsh,\ 101 reg, value) 102#define trm_reg_write32(value,reg) bus_space_write_4(pACB->tag, pACB->bsh,\ 103 reg, value) 104 105#define PCI_Vendor_ID_TEKRAM 0x1DE1 106#define PCI_Device_ID_TRM_S1040 0x0391 107#define PCI_DEVICEID_TRMS1040 0x03911DE1 108 109#ifdef trm_DEBUG1 110#define TRM_DPRINTF(fmt, arg...) printf("trm: " fmt, ##arg) 111#else 112#define TRM_DPRINTF(fmt, arg...) {} 113#endif /* TRM_DEBUG */ 114 115static void trm_check_eeprom(PNVRAMTYPE pEEpromBuf,PACB pACB); 116static void TRM_read_all(PNVRAMTYPE pEEpromBuf,PACB pACB); 117static u_int8_t TRM_get_data(PACB pACB, u_int8_t bAddr); 118static void TRM_write_all(PNVRAMTYPE pEEpromBuf,PACB pACB); 119static void TRM_set_data(PACB pACB, u_int8_t bAddr, u_int8_t bData); 120static void TRM_write_cmd(PACB pACB, u_int8_t bCmd, u_int8_t bAddr); 121static void TRM_wait_30us(PACB pACB); 122 123static void trm_Interrupt(void *vpACB); 124static void trm_DataOutPhase0(PACB pACB, PSRB pSRB, 125 u_int8_t * pscsi_status); 126static void trm_DataInPhase0(PACB pACB, PSRB pSRB, 127 u_int8_t * pscsi_status); 128static void trm_CommandPhase0(PACB pACB, PSRB pSRB, 129 u_int8_t * pscsi_status); 130static void trm_StatusPhase0(PACB pACB, PSRB pSRB, 131 u_int8_t * pscsi_status); 132static void trm_MsgOutPhase0(PACB pACB, PSRB pSRB, 133 u_int8_t * pscsi_status); 134static void trm_MsgInPhase0(PACB pACB, PSRB pSRB, 135 u_int8_t * pscsi_status); 136static void trm_DataOutPhase1(PACB pACB, PSRB pSRB, 137 u_int8_t * pscsi_status); 138static void trm_DataInPhase1(PACB pACB, PSRB pSRB, 139 u_int8_t * pscsi_status); 140static void trm_CommandPhase1(PACB pACB, PSRB pSRB, 141 u_int8_t * pscsi_status); 142static void trm_StatusPhase1(PACB pACB, PSRB pSRB, 143 u_int8_t * pscsi_status); 144static void trm_MsgOutPhase1(PACB pACB, PSRB pSRB, 145 u_int8_t * pscsi_status); 146static void trm_MsgInPhase1(PACB pACB, PSRB pSRB, 147 u_int8_t * pscsi_status); 148static void trm_Nop0(PACB pACB, PSRB pSRB, u_int8_t * pscsi_status); 149static void trm_Nop1(PACB pACB, PSRB pSRB, u_int8_t * pscsi_status); 150static void trm_SetXferRate(PACB pACB, PSRB pSRB,PDCB pDCB); 151static void trm_DataIO_transfer(PACB pACB, PSRB pSRB, u_int16_t ioDir); 152static void trm_Disconnect(PACB pACB); 153static void trm_Reselect(PACB pACB); 154static void trm_SRBdone(PACB pACB, PDCB pDCB, PSRB pSRB); 155static void trm_DoingSRB_Done(PACB pACB); 156static void trm_ScsiRstDetect(PACB pACB); 157static void trm_ResetSCSIBus(PACB pACB); 158static void trm_RequestSense(PACB pACB, PDCB pDCB, PSRB pSRB); 159static void trm_EnableMsgOutAbort2(PACB pACB, PSRB pSRB); 160static void trm_EnableMsgOutAbort1(PACB pACB, PSRB pSRB); 161static void trm_SendSRB(PACB pACB, PSRB pSRB); 162static int trm_probe(device_t tag); 163static int trm_attach(device_t tag); 164static void trm_reset(PACB pACB); 165 166static u_int16_t trm_StartSCSI(PACB pACB, PDCB pDCB, PSRB pSRB); 167 168static int trm_initAdapter(PACB pACB, u_int16_t unit, 169 device_t pci_config_id); 170static void trm_initDCB(PACB pACB, PDCB pDCB, u_int16_t unit, 171 u_int32_t i, u_int32_t j); 172static void trm_initSRB(PSRB psrb); 173static void trm_linkSRB(PACB pACB); 174static void trm_initACB(PACB pACB, u_int16_t unit); 175/* CAM SIM entry points */ 176#define ccb_trmsrb_ptr spriv_ptr0 177#define ccb_trmacb_ptr spriv_ptr1 178static void trm_action(struct cam_sim *psim, union ccb *pccb); 179static void trm_poll(struct cam_sim *psim); 180 181 182static void * trm_SCSI_phase0[] = { 183 trm_DataOutPhase0, /* phase:0 */ 184 trm_DataInPhase0, /* phase:1 */ 185 trm_CommandPhase0, /* phase:2 */ 186 trm_StatusPhase0, /* phase:3 */ 187 trm_Nop0, /* phase:4 */ 188 trm_Nop1, /* phase:5 */ 189 trm_MsgOutPhase0, /* phase:6 */ 190 trm_MsgInPhase0, /* phase:7 */ 191}; 192 193/* 194 * 195 * stateV = (void *) trm_SCSI_phase1[phase] 196 * 197 */ 198static void * trm_SCSI_phase1[] = { 199 trm_DataOutPhase1, /* phase:0 */ 200 trm_DataInPhase1, /* phase:1 */ 201 trm_CommandPhase1, /* phase:2 */ 202 trm_StatusPhase1, /* phase:3 */ 203 trm_Nop0, /* phase:4 */ 204 trm_Nop1, /* phase:5 */ 205 trm_MsgOutPhase1, /* phase:6 */ 206 trm_MsgInPhase1, /* phase:7 */ 207}; 208 209 210NVRAMTYPE trm_eepromBuf[MAX_ADAPTER_NUM]; 211/* 212 *Fast20: 000 50ns, 20.0 Mbytes/s 213 * 001 75ns, 13.3 Mbytes/s 214 * 010 100ns, 10.0 Mbytes/s 215 * 011 125ns, 8.0 Mbytes/s 216 * 100 150ns, 6.6 Mbytes/s 217 * 101 175ns, 5.7 Mbytes/s 218 * 110 200ns, 5.0 Mbytes/s 219 * 111 250ns, 4.0 Mbytes/s 220 * 221 *Fast40: 000 25ns, 40.0 Mbytes/s 222 * 001 50ns, 20.0 Mbytes/s 223 * 010 75ns, 13.3 Mbytes/s 224 * 011 100ns, 10.0 Mbytes/s 225 * 100 125ns, 8.0 Mbytes/s 226 * 101 150ns, 6.6 Mbytes/s 227 * 110 175ns, 5.7 Mbytes/s 228 * 111 200ns, 5.0 Mbytes/s 229 */ 230 /* real period: */ 231u_int8_t dc395x_trm_clock_period[] = { 232 12,/* 48 ns 20 MB/sec */ 233 18,/* 72 ns 13.3 MB/sec */ 234 25,/* 100 ns 10.0 MB/sec */ 235 31,/* 124 ns 8.0 MB/sec */ 236 37,/* 148 ns 6.6 MB/sec */ 237 43,/* 172 ns 5.7 MB/sec */ 238 50,/* 200 ns 5.0 MB/sec */ 239 62 /* 248 ns 4.0 MB/sec */ 240}; 241 242u_int8_t dc395x_trm_tinfo_sync_period[] = { 243 12,/* 20.0 MB/sec */ 244 18,/* 13.3 MB/sec */ 245 25,/* 10.0 MB/sec */ 246 31,/* 8.0 MB/sec */ 247 37,/* 6.6 MB/sec */ 248 43,/* 5.7 MB/sec */ 249 50,/* 5.0 MB/sec */ 250 62,/* 4.0 MB/sec */ 251}; 252 253static PSRB 254trm_GetSRB(PACB pACB) 255{ 256 int intflag; 257 PSRB pSRB; 258 259 intflag = splcam(); 260 pSRB = pACB->pFreeSRB; 261 if (pSRB) { 262 pACB->pFreeSRB = pSRB->pNextSRB; 263 pSRB->pNextSRB = NULL; 264 } 265 splx(intflag); 266 return (pSRB); 267} 268 269static void 270trm_RewaitSRB0(PDCB pDCB, PSRB pSRB) 271{ 272 PSRB psrb1; 273 int intflag; 274 275 intflag = splcam(); 276 if ((psrb1 = pDCB->pWaitingSRB)) { 277 pSRB->pNextSRB = psrb1; 278 pDCB->pWaitingSRB = pSRB; 279 } else { 280 pSRB->pNextSRB = NULL; 281 pDCB->pWaitingSRB = pSRB; 282 pDCB->pWaitLastSRB = pSRB; 283 } 284 splx(intflag); 285} 286 287static void 288trm_RewaitSRB(PDCB pDCB, PSRB pSRB) 289{ 290 PSRB psrb1; 291 int intflag; 292 u_int8_t bval; 293 294 intflag = splcam(); 295 pDCB->GoingSRBCnt--; 296 psrb1 = pDCB->pGoingSRB; 297 if (pSRB == psrb1) 298 pDCB->pGoingSRB = psrb1->pNextSRB; 299 else { 300 while (pSRB != psrb1->pNextSRB) 301 psrb1 = psrb1->pNextSRB; 302 psrb1->pNextSRB = pSRB->pNextSRB; 303 if (pSRB == pDCB->pGoingLastSRB) 304 pDCB->pGoingLastSRB = psrb1; 305 } 306 if ((psrb1 = pDCB->pWaitingSRB)) { 307 pSRB->pNextSRB = psrb1; 308 pDCB->pWaitingSRB = pSRB; 309 } else { 310 pSRB->pNextSRB = NULL; 311 pDCB->pWaitingSRB = pSRB; 312 pDCB->pWaitLastSRB = pSRB; 313 } 314 bval = pSRB->TagNumber; 315 pDCB->TagMask &= (~(1 << bval)); /* Free TAG number */ 316 splx(intflag); 317} 318 319static void 320trm_DoWaitingSRB(PACB pACB) 321{ 322 int intflag; 323 PDCB ptr, ptr1; 324 PSRB pSRB; 325 326 intflag = splcam(); 327 if (!(pACB->pActiveDCB) && 328 !(pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV))) { 329 ptr = pACB->pDCBRunRobin; 330 if (!ptr) { 331 ptr = pACB->pLinkDCB; 332 pACB->pDCBRunRobin = ptr; 333 } 334 ptr1 = ptr; 335 for (;ptr1 ;) { 336 pACB->pDCBRunRobin = ptr1->pNextDCB; 337 if (!(ptr1->MaxCommand > ptr1->GoingSRBCnt) 338 || !(pSRB = ptr1->pWaitingSRB)) { 339 if (pACB->pDCBRunRobin == ptr) 340 break; 341 ptr1 = ptr1->pNextDCB; 342 } else { 343 if (!trm_StartSCSI(pACB, ptr1, pSRB)) { 344 /* 345 * If trm_StartSCSI return 0 : 346 * current interrupt status is interrupt enable 347 * It's said that SCSI processor is unoccupied 348 */ 349 ptr1->GoingSRBCnt++; 350 if (ptr1->pWaitLastSRB == pSRB) { 351 ptr1->pWaitingSRB = NULL; 352 ptr1->pWaitLastSRB = NULL; 353 } else 354 ptr1->pWaitingSRB = pSRB->pNextSRB; 355 pSRB->pNextSRB = NULL; 356 if (ptr1->pGoingSRB) 357 ptr1->pGoingLastSRB->pNextSRB = pSRB; 358 else 359 ptr1->pGoingSRB = pSRB; 360 ptr1->pGoingLastSRB = pSRB; 361 } 362 break; 363 } 364 } 365 } 366 splx(intflag); 367 return; 368} 369 370static void 371trm_SRBwaiting(PDCB pDCB, PSRB pSRB) 372{ 373 374 if (pDCB->pWaitingSRB) { 375 pDCB->pWaitLastSRB->pNextSRB = pSRB; 376 pDCB->pWaitLastSRB = pSRB; 377 pSRB->pNextSRB = NULL; 378 } else { 379 pDCB->pWaitingSRB = pSRB; 380 pDCB->pWaitLastSRB = pSRB; 381 } 382} 383 384static void 385trm_ExecuteSRB(void *arg, bus_dma_segment_t *dm_segs, int nseg, int vp) 386{ 387 int flags; 388 PACB pACB; 389 PSRB pSRB; 390 union ccb *ccb; 391 u_long totalxferlen=0; 392 393 pSRB = (PSRB)arg; 394 ccb = pSRB->pccb; 395 pACB = (PACB)ccb->ccb_h.ccb_trmacb_ptr; 396 TRM_DPRINTF("trm_ExecuteSRB..........\n"); 397 if (nseg != 0) { 398 PSEG psg; 399 bus_dma_segment_t *end_seg; 400 bus_dmasync_op_t op; 401 402 /* Copy the segments into our SG list */ 403 end_seg = dm_segs + nseg; 404 psg = (PSEG) &pSRB->SegmentX[0]; 405 pSRB->SRBSGListPointer= psg; 406 while (dm_segs < end_seg) { 407 psg->address = vp?(u_long)vtophys(dm_segs->ds_addr) 408 :(u_long)dm_segs->ds_addr; 409 psg->length = (u_long)dm_segs->ds_len; 410 totalxferlen += dm_segs->ds_len; 411 psg++; 412 dm_segs++; 413 } 414 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 415 op = BUS_DMASYNC_PREREAD; 416 } else { 417 op = BUS_DMASYNC_PREWRITE; 418 } 419 bus_dmamap_sync(pACB->buffer_dmat, pSRB->dmamap, op); 420 } 421 pSRB->RetryCnt = 0; 422 pSRB->SRBTotalXferLength=totalxferlen; 423 pSRB->SRBSGCount = nseg; 424 pSRB->SRBSGIndex = 0; 425 pSRB->AdaptStatus = 0; 426 pSRB->TargetStatus = 0; 427 pSRB->MsgCnt = 0; 428 pSRB->SRBStatus = 0; 429 pSRB->SRBFlag = 0; 430 pSRB->SRBState = 0; 431 pSRB->ScsiPhase = PH_BUS_FREE; /* SCSI bus free Phase */ 432 433 flags = splcam(); 434 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 435 if (nseg != 0) 436 bus_dmamap_unload(pACB->buffer_dmat, pSRB->dmamap); 437 pSRB->pNextSRB = pACB->pFreeSRB; 438 pACB->pFreeSRB = pSRB; 439 xpt_done(ccb); 440 splx(flags); 441 return; 442 } 443 ccb->ccb_h.status |= CAM_SIM_QUEUED; 444#if 0 445 /* XXX Need a timeout handler */ 446 ccb->ccb_h.timeout_ch = timeout(trmtimeout, (caddr_t)srb, (ccb->ccb_h.timeout * hz) / 1000); 447#endif 448 trm_SendSRB(pACB, pSRB); 449 splx(flags); 450 return; 451} 452 453static void 454trm_SendSRB(PACB pACB, PSRB pSRB) 455{ 456 int intflag; 457 PDCB pDCB; 458 459 intflag = splcam(); 460 pDCB = pSRB->pSRBDCB; 461 if (!(pDCB->MaxCommand > pDCB->GoingSRBCnt) || (pACB->pActiveDCB) 462 || (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV))) { 463 TRM_DPRINTF("pDCB->MaxCommand=%d \n",pDCB->MaxCommand); 464 TRM_DPRINTF("pDCB->GoingSRBCnt=%d \n",pDCB->GoingSRBCnt); 465 TRM_DPRINTF("pACB->pActiveDCB=%8x \n",(u_int)pACB->pActiveDCB); 466 TRM_DPRINTF("pACB->ACBFlag=%x \n",pACB->ACBFlag); 467 trm_SRBwaiting(pDCB, pSRB); 468 goto SND_EXIT; 469 } 470 471 if (pDCB->pWaitingSRB) { 472 trm_SRBwaiting(pDCB, pSRB); 473 pSRB = pDCB->pWaitingSRB; 474 pDCB->pWaitingSRB = pSRB->pNextSRB; 475 pSRB->pNextSRB = NULL; 476 } 477 478 if (!trm_StartSCSI(pACB, pDCB, pSRB)) { 479 /* 480 * If trm_StartSCSI return 0 : 481 * current interrupt status is interrupt enable 482 * It's said that SCSI processor is unoccupied 483 */ 484 pDCB->GoingSRBCnt++; /* stack waiting SRB*/ 485 if (pDCB->pGoingSRB) { 486 pDCB->pGoingLastSRB->pNextSRB = pSRB; 487 pDCB->pGoingLastSRB = pSRB; 488 } else { 489 pDCB->pGoingSRB = pSRB; 490 pDCB->pGoingLastSRB = pSRB; 491 } 492 } else { 493 /* 494 * If trm_StartSCSI return 1 : 495 * current interrupt status is interrupt disreenable 496 * It's said that SCSI processor has more one SRB need to do 497 */ 498 trm_RewaitSRB0(pDCB, pSRB); 499 } 500SND_EXIT: 501 splx(intflag); 502 /* 503 * enable interrupt 504 */ 505 return; 506} 507 508 509static void 510trm_action(struct cam_sim *psim, union ccb *pccb) 511{ 512 PACB pACB; 513 u_int target_id,target_lun; 514 515 CAM_DEBUG(pccb->ccb_h.path, CAM_DEBUG_TRACE, ("trm_action\n")); 516 517 pACB = (PACB) cam_sim_softc(psim); 518 target_id = pccb->ccb_h.target_id; 519 target_lun = pccb->ccb_h.target_lun; 520 521 switch (pccb->ccb_h.func_code) { 522 case XPT_NOOP: 523 TRM_DPRINTF(" XPT_NOOP \n"); 524 pccb->ccb_h.status = CAM_REQ_INVALID; 525 xpt_done(pccb); 526 break; 527 /* 528 * Execute the requested I/O operation 529 */ 530 case XPT_SCSI_IO: { 531 PDCB pDCB = NULL; 532 PSRB pSRB; 533 struct ccb_scsiio *pcsio; 534 535 pcsio = &pccb->csio; 536 TRM_DPRINTF(" XPT_SCSI_IO \n"); 537 TRM_DPRINTF("trm: target_id= %d target_lun= %d \n" 538 ,target_id, target_lun); 539 TRM_DPRINTF( 540 "pACB->scan_devices[target_id][target_lun]= %d \n" 541 ,pACB->scan_devices[target_id][target_lun]); 542 pDCB = pACB->pDCB[target_id][target_lun]; 543 /* 544 * Assign an SRB and connect it with this ccb. 545 */ 546 pSRB = trm_GetSRB(pACB); 547 if (!pSRB) { 548 /* Freeze SIMQ */ 549 pccb->ccb_h.status = CAM_RESRC_UNAVAIL; 550 xpt_done(pccb); 551 return; 552 } 553 pSRB->pSRBDCB = pDCB; 554 pccb->ccb_h.ccb_trmsrb_ptr = pSRB; 555 pccb->ccb_h.ccb_trmacb_ptr = pACB; 556 pSRB->pccb = pccb; 557 pSRB->ScsiCmdLen = pcsio->cdb_len; 558 /* 559 * move layer of CAM command block to layer of SCSI 560 * Request Block for SCSI processor command doing 561 */ 562 bcopy(pcsio->cdb_io.cdb_bytes,pSRB->CmdBlock 563 ,pcsio->cdb_len); 564 if ((pccb->ccb_h.flags & CAM_DIR_MASK) 565 != CAM_DIR_NONE) { 566 if ((pccb->ccb_h.flags & 567 CAM_SCATTER_VALID) == 0) { 568 if ((pccb->ccb_h.flags 569 & CAM_DATA_PHYS) == 0) { 570 int flags; 571 int error; 572 573 flags = splsoftvm(); 574 error = bus_dmamap_load( 575 pACB->buffer_dmat, 576 pSRB->dmamap, 577 pcsio->data_ptr, 578 pcsio->dxfer_len, 579 trm_ExecuteSRB, 580 pSRB, 581 0); 582 if (error == EINPROGRESS) { 583 xpt_freeze_simq( 584 pACB->psim, 585 1); 586 pccb->ccb_h.status |= 587 CAM_RELEASE_SIMQ; 588 } 589 splx(flags); 590 } else { 591 struct bus_dma_segment seg; 592 593 /* Pointer to physical buffer */ 594 seg.ds_addr = 595 (bus_addr_t)pcsio->data_ptr; 596 seg.ds_len = pcsio->dxfer_len; 597 trm_ExecuteSRB(pSRB, &seg, 1, 598 0); 599 } 600 } else { 601 /* CAM_SCATTER_VALID */ 602 struct bus_dma_segment *segs; 603 604 if ((pccb->ccb_h.flags & 605 CAM_SG_LIST_PHYS) == 0 || 606 (pccb->ccb_h.flags 607 & CAM_DATA_PHYS) != 0) { 608 pSRB->pNextSRB = pACB->pFreeSRB; 609 pACB->pFreeSRB = pSRB; 610 pccb->ccb_h.status = 611 CAM_PROVIDE_FAIL; 612 xpt_done(pccb); 613 return; 614 } 615 616 /* cam SG list is physical, 617 * cam data is virtual 618 */ 619 segs = (struct bus_dma_segment *) 620 pcsio->data_ptr; 621 trm_ExecuteSRB(pSRB, segs, 622 pcsio->sglist_cnt, 1); 623 } /* CAM_SCATTER_VALID */ 624 } else 625 trm_ExecuteSRB(pSRB, NULL, 0, 0); 626 } 627 break; 628 case XPT_GDEV_TYPE: 629 TRM_DPRINTF(" XPT_GDEV_TYPE \n"); 630 pccb->ccb_h.status = CAM_REQ_INVALID; 631 xpt_done(pccb); 632 break; 633 case XPT_GDEVLIST: 634 TRM_DPRINTF(" XPT_GDEVLIST \n"); 635 pccb->ccb_h.status = CAM_REQ_INVALID; 636 xpt_done(pccb); 637 break; 638 /* 639 * Path routing inquiry 640 * Path Inquiry CCB 641 */ 642 case XPT_PATH_INQ: { 643 struct ccb_pathinq *cpi = &pccb->cpi; 644 645 TRM_DPRINTF(" XPT_PATH_INQ \n"); 646 cpi->version_num = 1; 647 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; 648 cpi->target_sprt = 0; 649 cpi->hba_misc = 0; 650 cpi->hba_eng_cnt = 0; 651 cpi->max_target = 15 ; 652 cpi->max_lun = pACB->max_lun; /* 7 or 0 */ 653 cpi->initiator_id = pACB->AdaptSCSIID; 654 cpi->bus_id = cam_sim_bus(psim); 655 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 656 strncpy(cpi->hba_vid, "Tekram_TRM", HBA_IDLEN); 657 strncpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN); 658 cpi->unit_number = cam_sim_unit(psim); 659 cpi->ccb_h.status = CAM_REQ_CMP; 660 xpt_done(pccb); 661 } 662 break; 663 /* 664 * Release a frozen SIM queue 665 * Release SIM Queue 666 */ 667 case XPT_REL_SIMQ: 668 TRM_DPRINTF(" XPT_REL_SIMQ \n"); 669 pccb->ccb_h.status = CAM_REQ_INVALID; 670 xpt_done(pccb); 671 break; 672 /* 673 * Set Asynchronous Callback Parameters 674 * Set Asynchronous Callback CCB 675 */ 676 case XPT_SASYNC_CB: 677 TRM_DPRINTF(" XPT_SASYNC_CB \n"); 678 pccb->ccb_h.status = CAM_REQ_INVALID; 679 xpt_done(pccb); 680 break; 681 /* 682 * Set device type information 683 * Set Device Type CCB 684 */ 685 case XPT_SDEV_TYPE: 686 TRM_DPRINTF(" XPT_SDEV_TYPE \n"); 687 pccb->ccb_h.status = CAM_REQ_INVALID; 688 xpt_done(pccb); 689 break; 690 /* 691 * (Re)Scan the SCSI Bus 692 * Rescan the given bus, or bus/target/lun 693 */ 694 case XPT_SCAN_BUS: 695 TRM_DPRINTF(" XPT_SCAN_BUS \n"); 696 pccb->ccb_h.status = CAM_REQ_INVALID; 697 xpt_done(pccb); 698 break; 699 /* 700 * Get EDT entries matching the given pattern 701 */ 702 case XPT_DEV_MATCH: 703 TRM_DPRINTF(" XPT_DEV_MATCH \n"); 704 pccb->ccb_h.status = CAM_REQ_INVALID; 705 xpt_done(pccb); 706 break; 707 /* 708 * Turn on debugging for a bus, target or lun 709 */ 710 case XPT_DEBUG: 711 TRM_DPRINTF(" XPT_DEBUG \n"); 712 pccb->ccb_h.status = CAM_REQ_INVALID; 713 xpt_done(pccb); 714 break; 715 /* 716 * XPT_ABORT = 0x10, Abort the specified CCB 717 * Abort XPT request CCB 718 */ 719 case XPT_ABORT: 720 TRM_DPRINTF(" XPT_ABORT \n"); 721 pccb->ccb_h.status = CAM_REQ_INVALID; 722 xpt_done(pccb); 723 break; 724 /* 725 * Reset the specified SCSI bus 726 * Reset SCSI Bus CCB 727 */ 728 case XPT_RESET_BUS: { 729 int i; 730 731 TRM_DPRINTF(" XPT_RESET_BUS \n"); 732 trm_reset(pACB); 733 pACB->ACBFlag=0; 734 for (i=0; i<500; i++) 735 DELAY(1000); 736 pccb->ccb_h.status = CAM_REQ_CMP; 737 xpt_done(pccb); 738 } 739 break; 740 /* 741 * Bus Device Reset the specified SCSI device 742 * Reset SCSI Device CCB 743 */ 744 case XPT_RESET_DEV: 745 /* 746 * Don't (yet?) support vendor 747 * specific commands. 748 */ 749 TRM_DPRINTF(" XPT_RESET_DEV \n"); 750 pccb->ccb_h.status = CAM_REQ_INVALID; 751 xpt_done(pccb); 752 break; 753 /* 754 * Terminate the I/O process 755 * Terminate I/O Process Request CCB 756 */ 757 case XPT_TERM_IO: 758 TRM_DPRINTF(" XPT_TERM_IO \n"); 759 pccb->ccb_h.status = CAM_REQ_INVALID; 760 xpt_done(pccb); 761 break; 762 /* 763 * Scan Logical Unit 764 */ 765 case XPT_SCAN_LUN: 766 TRM_DPRINTF(" XPT_SCAN_LUN \n"); 767 pccb->ccb_h.status = CAM_REQ_INVALID; 768 xpt_done(pccb); 769 break; 770 771 /* 772 * Get/Set transfer rate/width/disconnection/tag queueing 773 * settings 774 * (GET) default/user transfer settings for the target 775 */ 776 case XPT_GET_TRAN_SETTINGS: { 777 struct ccb_trans_settings *cts; 778 int intflag; 779 struct trm_transinfo *tinfo; 780 PDCB pDCB; 781 782 TRM_DPRINTF(" XPT_GET_TRAN_SETTINGS \n"); 783 cts = &pccb->cts; 784 pDCB = pACB->pDCB[target_id][target_lun]; 785 intflag = splcam(); 786 /* 787 * disable interrupt 788 */ 789 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 790 /* current transfer settings */ 791 if (pDCB->tinfo.disc_tag & TRM_CUR_DISCENB) 792 cts->flags = CCB_TRANS_DISC_ENB; 793 else 794 cts->flags = 0;/* no tag & disconnect */ 795 if (pDCB->tinfo.disc_tag & TRM_CUR_TAGENB) 796 cts->flags |= CCB_TRANS_TAG_ENB; 797 tinfo = &pDCB->tinfo.current; 798 TRM_DPRINTF("CURRENT: cts->flags= %2x \n", 799 cts->flags); 800 } else { 801 /* default(user) transfer settings */ 802 if (pDCB->tinfo.disc_tag & TRM_USR_DISCENB) 803 cts->flags = CCB_TRANS_DISC_ENB; 804 else 805 cts->flags = 0; 806 if (pDCB->tinfo.disc_tag & TRM_USR_TAGENB) 807 cts->flags |= CCB_TRANS_TAG_ENB; 808 tinfo = &pDCB->tinfo.user; 809 TRM_DPRINTF("USER: cts->flags= %2x \n", 810 cts->flags); 811 } 812 cts->sync_period = tinfo->period; 813 cts->sync_offset = tinfo->offset; 814 cts->bus_width = tinfo->width; 815 TRM_DPRINTF("pDCB->SyncPeriod: %d \n", 816 pDCB->SyncPeriod); 817 TRM_DPRINTF("period: %d \n", tinfo->period); 818 TRM_DPRINTF("offset: %d \n", tinfo->offset); 819 TRM_DPRINTF("width: %d \n", tinfo->width); 820 821 splx(intflag); 822 cts->valid = CCB_TRANS_SYNC_RATE_VALID | 823 CCB_TRANS_SYNC_OFFSET_VALID | 824 CCB_TRANS_BUS_WIDTH_VALID | 825 CCB_TRANS_DISC_VALID | 826 CCB_TRANS_TQ_VALID; 827 pccb->ccb_h.status = CAM_REQ_CMP; 828 xpt_done(pccb); 829 } 830 break; 831 /* 832 * Get/Set transfer rate/width/disconnection/tag queueing 833 * settings 834 * (Set) transfer rate/width negotiation settings 835 */ 836 case XPT_SET_TRAN_SETTINGS: { 837 struct ccb_trans_settings *cts; 838 u_int update_type; 839 int intflag; 840 PDCB pDCB; 841 842 TRM_DPRINTF(" XPT_SET_TRAN_SETTINGS \n"); 843 cts = &pccb->cts; 844 update_type = 0; 845 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 846 update_type |= TRM_TRANS_GOAL; 847 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) 848 update_type |= TRM_TRANS_USER; 849 intflag = splcam(); 850 pDCB = pACB->pDCB[target_id][target_lun]; 851 852 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 853 /*ccb disc enables */ 854 if (update_type & TRM_TRANS_GOAL) { 855 if ((cts->flags & CCB_TRANS_DISC_ENB) 856 != 0) 857 pDCB->tinfo.disc_tag 858 |= TRM_CUR_DISCENB; 859 else 860 pDCB->tinfo.disc_tag &= 861 ~TRM_CUR_DISCENB; 862 } 863 if (update_type & TRM_TRANS_USER) { 864 if ((cts->flags & CCB_TRANS_DISC_ENB) 865 != 0) 866 pDCB->tinfo.disc_tag 867 |= TRM_USR_DISCENB; 868 else 869 pDCB->tinfo.disc_tag &= 870 ~TRM_USR_DISCENB; 871 } 872 } 873 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 874 /* if ccb tag q active */ 875 if (update_type & TRM_TRANS_GOAL) { 876 if ((cts->flags & CCB_TRANS_TAG_ENB) 877 != 0) 878 pDCB->tinfo.disc_tag |= 879 TRM_CUR_TAGENB; 880 else 881 pDCB->tinfo.disc_tag &= 882 ~TRM_CUR_TAGENB; 883 } 884 if (update_type & TRM_TRANS_USER) { 885 if ((cts->flags & CCB_TRANS_TAG_ENB) 886 != 0) 887 pDCB->tinfo.disc_tag |= 888 TRM_USR_TAGENB; 889 else 890 pDCB->tinfo.disc_tag &= 891 ~TRM_USR_TAGENB; 892 } 893 } 894 /* Minimum sync period factor */ 895 896 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) { 897 /* if ccb sync active */ 898 /* TRM-S1040 MinSyncPeriod = 4 clocks/byte */ 899 if ((cts->sync_period != 0) && 900 (cts->sync_period < 125)) 901 cts->sync_period = 125; 902 /* 1/(125*4) minsync 2 MByte/sec */ 903 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) 904 != 0) { 905 if (cts->sync_offset == 0) 906 cts->sync_period = 0; 907 /* TRM-S1040 MaxSyncOffset = 15 bytes*/ 908 if (cts->sync_offset > 15) 909 cts->sync_offset = 15; 910 } 911 } 912 if ((update_type & TRM_TRANS_USER) != 0) { 913 pDCB->tinfo.user.period = cts->sync_period; 914 pDCB->tinfo.user.offset = cts->sync_offset; 915 pDCB->tinfo.user.width = cts->bus_width; 916 } 917 if ((update_type & TRM_TRANS_GOAL) != 0) { 918 pDCB->tinfo.goal.period = cts->sync_period; 919 pDCB->tinfo.goal.offset = cts->sync_offset; 920 pDCB->tinfo.goal.width = cts->bus_width; 921 } 922 splx(intflag); 923 pccb->ccb_h.status = CAM_REQ_CMP; 924 xpt_done(pccb); 925 break; 926 } 927 /* 928 * Calculate the geometry parameters for a device give 929 * the sector size and volume size. 930 */ 931 case XPT_CALC_GEOMETRY: { 932 struct ccb_calc_geometry *ccg; 933 u_int32_t size_mb; 934 u_int32_t secs_per_cylinder; 935 int extended; 936 937 TRM_DPRINTF(" XPT_CALC_GEOMETRY \n"); 938 ccg = &pccb->ccg; 939 size_mb = ccg->volume_size / 940 ((1024L * 1024L) / ccg->block_size); 941 extended = 1; 942 if (size_mb > 1024 && extended) { 943 ccg->heads = 255; 944 ccg->secs_per_track = 63; 945 } else { 946 ccg->heads = 64; 947 ccg->secs_per_track = 32; 948 } 949 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 950 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 951 pccb->ccb_h.status = CAM_REQ_CMP; 952 xpt_done(pccb); 953 } 954 break; 955 case XPT_ENG_INQ: 956 TRM_DPRINTF(" XPT_ENG_INQ \n"); 957 pccb->ccb_h.status = CAM_REQ_INVALID; 958 xpt_done(pccb); 959 break; 960 /* 961 * HBA execute engine request 962 * This structure must match SCSIIO size 963 */ 964 case XPT_ENG_EXEC: 965 TRM_DPRINTF(" XPT_ENG_EXEC \n"); 966 pccb->ccb_h.status = CAM_REQ_INVALID; 967 xpt_done(pccb); 968 break; 969 /* 970 * XPT_EN_LUN = 0x30, Enable LUN as a target 971 * Target mode structures. 972 */ 973 case XPT_EN_LUN: 974 /* 975 * Don't (yet?) support vendor 976 * specific commands. 977 */ 978 TRM_DPRINTF(" XPT_EN_LUN \n"); 979 pccb->ccb_h.status = CAM_REQ_INVALID; 980 xpt_done(pccb); 981 break; 982 /* 983 * Execute target I/O request 984 */ 985 case XPT_TARGET_IO: 986 /* 987 * Don't (yet?) support vendor 988 * specific commands. 989 */ 990 TRM_DPRINTF(" XPT_TARGET_IO \n"); 991 pccb->ccb_h.status = CAM_REQ_INVALID; 992 xpt_done(pccb); 993 break; 994 /* 995 * Accept Host Target Mode CDB 996 */ 997 case XPT_ACCEPT_TARGET_IO: 998 /* 999 * Don't (yet?) support vendor 1000 * specific commands. 1001 */ 1002 TRM_DPRINTF(" XPT_ACCEPT_TARGET_IO \n"); 1003 pccb->ccb_h.status = CAM_REQ_INVALID; 1004 xpt_done(pccb); 1005 break; 1006 /* 1007 * Continue Host Target I/O Connection 1008 */ 1009 case XPT_CONT_TARGET_IO: 1010 /* 1011 * Don't (yet?) support vendor 1012 * specific commands. 1013 */ 1014 TRM_DPRINTF(" XPT_CONT_TARGET_IO \n"); 1015 pccb->ccb_h.status = CAM_REQ_INVALID; 1016 xpt_done(pccb); 1017 break; 1018 /* 1019 * Notify Host Target driver of event 1020 */ 1021 case XPT_IMMED_NOTIFY: 1022 TRM_DPRINTF(" XPT_IMMED_NOTIFY \n"); 1023 pccb->ccb_h.status = CAM_REQ_INVALID; 1024 xpt_done(pccb); 1025 break; 1026 /* 1027 * Acknowledgement of event 1028 */ 1029 case XPT_NOTIFY_ACK: 1030 TRM_DPRINTF(" XPT_NOTIFY_ACK \n"); 1031 pccb->ccb_h.status = CAM_REQ_INVALID; 1032 xpt_done(pccb); 1033 break; 1034 /* 1035 * XPT_VUNIQUE = 0x80 1036 */ 1037 case XPT_VUNIQUE: 1038 pccb->ccb_h.status = CAM_REQ_INVALID; 1039 xpt_done(pccb); 1040 break; 1041 default: 1042 pccb->ccb_h.status = CAM_REQ_INVALID; 1043 xpt_done(pccb); 1044 break; 1045 } 1046} 1047 1048static void 1049trm_poll(struct cam_sim *psim) 1050{ 1051 1052} 1053 1054static void 1055trm_ResetDevParam(PACB pACB) 1056{ 1057 PDCB pDCB, pdcb; 1058 PNVRAMTYPE pEEpromBuf; 1059 u_int8_t PeriodIndex; 1060 1061 pDCB = pACB->pLinkDCB; 1062 if (pDCB == NULL) 1063 return; 1064 pdcb = pDCB; 1065 do { 1066 pDCB->SyncMode &= ~(SYNC_NEGO_DONE+ WIDE_NEGO_DONE); 1067 pDCB->SyncPeriod = 0; 1068 pDCB->SyncOffset = 0; 1069 pEEpromBuf = &trm_eepromBuf[pACB->AdapterUnit]; 1070 pDCB->DevMode = 1071 pEEpromBuf->NvramTarget[pDCB->TargetID].NvmTarCfg0; 1072 pDCB->AdpMode = pEEpromBuf->NvramChannelCfg; 1073 PeriodIndex = 1074 pEEpromBuf->NvramTarget[pDCB->TargetID].NvmTarPeriod & 0x07; 1075 pDCB->MaxNegoPeriod = dc395x_trm_clock_period[PeriodIndex]; 1076 if ((pDCB->DevMode & NTC_DO_WIDE_NEGO) && 1077 (pACB->Config & HCC_WIDE_CARD)) 1078 pDCB->SyncMode |= WIDE_NEGO_ENABLE; 1079 pDCB = pDCB->pNextDCB; 1080 } 1081 while (pdcb != pDCB); 1082} 1083 1084static void 1085trm_RecoverSRB(PACB pACB) 1086{ 1087 PDCB pDCB, pdcb; 1088 PSRB psrb, psrb2; 1089 u_int16_t cnt, i; 1090 1091 pDCB = pACB->pLinkDCB; 1092 if (pDCB == NULL) 1093 return; 1094 pdcb = pDCB; 1095 do { 1096 cnt = pdcb->GoingSRBCnt; 1097 psrb = pdcb->pGoingSRB; 1098 for (i = 0; i < cnt; i++) { 1099 psrb2 = psrb; 1100 psrb = psrb->pNextSRB; 1101 if (pdcb->pWaitingSRB) { 1102 psrb2->pNextSRB = pdcb->pWaitingSRB; 1103 pdcb->pWaitingSRB = psrb2; 1104 } else { 1105 pdcb->pWaitingSRB = psrb2; 1106 pdcb->pWaitLastSRB = psrb2; 1107 psrb2->pNextSRB = NULL; 1108 } 1109 } 1110 pdcb->GoingSRBCnt = 0; 1111 pdcb->pGoingSRB = NULL; 1112 pdcb->TagMask = 0; 1113 pdcb = pdcb->pNextDCB; 1114 } 1115 while (pdcb != pDCB); 1116} 1117 1118static void 1119trm_reset(PACB pACB) 1120{ 1121 int intflag; 1122 u_int16_t i; 1123 1124 TRM_DPRINTF("trm: RESET"); 1125 intflag = splcam(); 1126 trm_reg_write8(0x00, TRMREG_DMA_INTEN); 1127 trm_reg_write8(0x00, TRMREG_SCSI_INTEN); 1128 1129 trm_ResetSCSIBus(pACB); 1130 for (i = 0; i < 500; i++) 1131 DELAY(1000); 1132 trm_reg_write8(0x7F, TRMREG_SCSI_INTEN); 1133 /* Enable DMA interrupt */ 1134 trm_reg_write8(EN_SCSIINTR, TRMREG_DMA_INTEN); 1135 /* Clear DMA FIFO */ 1136 trm_reg_write8(CLRXFIFO, TRMREG_DMA_CONTROL); 1137 /* Clear SCSI FIFO */ 1138 trm_reg_write16(DO_CLRFIFO,TRMREG_SCSI_CONTROL); 1139 trm_ResetDevParam(pACB); 1140 trm_DoingSRB_Done(pACB); 1141 pACB->pActiveDCB = NULL; 1142 pACB->ACBFlag = 0;/* RESET_DETECT, RESET_DONE ,RESET_DEV */ 1143 trm_DoWaitingSRB(pACB); 1144 /* Tell the XPT layer that a bus reset occured */ 1145 if (pACB->ppath != NULL) 1146 xpt_async(AC_BUS_RESET, pACB->ppath, NULL); 1147 splx(intflag); 1148 return; 1149} 1150 1151static u_int16_t 1152trm_StartSCSI(PACB pACB, PDCB pDCB, PSRB pSRB) 1153{ 1154 u_int16_t return_code; 1155 u_int8_t tag_number, scsicommand, i,command,identify_message; 1156 u_int8_t * ptr; 1157 u_long tag_mask; 1158 union ccb *pccb; 1159 struct ccb_scsiio *pcsio; 1160 1161 pccb = pSRB->pccb; 1162 pcsio = &pccb->csio; 1163 pSRB->TagNumber = 31; 1164 1165 trm_reg_write8(pACB->AdaptSCSIID, TRMREG_SCSI_HOSTID); 1166 trm_reg_write8(pDCB->TargetID, TRMREG_SCSI_TARGETID); 1167 trm_reg_write8(pDCB->SyncPeriod, TRMREG_SCSI_SYNC); 1168 trm_reg_write8(pDCB->SyncOffset, TRMREG_SCSI_OFFSET); 1169 pSRB->ScsiPhase = PH_BUS_FREE;/* initial phase */ 1170 /* Flush FIFO */ 1171 trm_reg_write16(DO_CLRFIFO, TRMREG_SCSI_CONTROL); 1172 1173 identify_message = pDCB->IdentifyMsg; 1174 1175 if ((pSRB->CmdBlock[0] == INQUIRY) || 1176 (pSRB->CmdBlock[0] == REQUEST_SENSE) || 1177 (pSRB->SRBFlag & AUTO_REQSENSE)) { 1178 if (((pDCB->SyncMode & WIDE_NEGO_ENABLE) && 1179 !(pDCB->SyncMode & WIDE_NEGO_DONE)) \ 1180 || ((pDCB->SyncMode & SYNC_NEGO_ENABLE) && 1181 !(pDCB->SyncMode & SYNC_NEGO_DONE))) { 1182 if (!(pDCB->IdentifyMsg & 7) || 1183 (pSRB->CmdBlock[0] != INQUIRY)) { 1184 scsicommand = SCMD_SEL_ATNSTOP; 1185 pSRB->SRBState = SRB_MSGOUT; 1186 goto polling; 1187 } 1188 } 1189 /* 1190 * Send identify message 1191 */ 1192 trm_reg_write8((identify_message & 0xBF) ,TRMREG_SCSI_FIFO); 1193 scsicommand = SCMD_SEL_ATN; 1194 pSRB->SRBState = SRB_START_; 1195 } else { 1196 /* not inquiry,request sense,auto request sense */ 1197 /* 1198 * Send identify message 1199 */ 1200 trm_reg_write8(identify_message,TRMREG_SCSI_FIFO); 1201 scsicommand = SCMD_SEL_ATN; 1202 pSRB->SRBState = SRB_START_; 1203 if (pDCB->SyncMode & EN_TAG_QUEUING) { 1204 /* Send Tag message */ 1205 /* 1206 * Get tag id 1207 */ 1208 tag_mask = 1; 1209 tag_number = 0; 1210 while (tag_mask & pDCB->TagMask) { 1211 tag_mask = tag_mask << 1; 1212 tag_number++; 1213 } 1214 /* 1215 * Send Tag id 1216 */ 1217 trm_reg_write8(MSG_SIMPLE_QTAG, TRMREG_SCSI_FIFO); 1218 trm_reg_write8(tag_number, TRMREG_SCSI_FIFO); 1219 pDCB->TagMask |= tag_mask; 1220 pSRB->TagNumber = tag_number; 1221 scsicommand = SCMD_SEL_ATN3; 1222 pSRB->SRBState = SRB_START_; 1223 } 1224 } 1225polling: 1226 /* 1227 * Send CDB ..command block ......... 1228 */ 1229 if (pSRB->SRBFlag & AUTO_REQSENSE) { 1230 trm_reg_write8(REQUEST_SENSE, TRMREG_SCSI_FIFO); 1231 trm_reg_write8((pDCB->IdentifyMsg << 5), TRMREG_SCSI_FIFO); 1232 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1233 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1234 trm_reg_write8(pcsio->sense_len, TRMREG_SCSI_FIFO); 1235 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1236 } else { 1237 ptr = (u_int8_t *) pSRB->CmdBlock; 1238 for (i = 0; i < pSRB->ScsiCmdLen ; i++) { 1239 command = *ptr++; 1240 trm_reg_write8(command,TRMREG_SCSI_FIFO); 1241 } 1242 } 1243 if (trm_reg_read16(TRMREG_SCSI_STATUS) & SCSIINTERRUPT) { 1244 /* 1245 * If trm_StartSCSI return 1 : 1246 * current interrupt status is interrupt disreenable 1247 * It's said that SCSI processor has more one SRB need to do, 1248 * SCSI processor has been occupied by one SRB. 1249 */ 1250 pSRB->SRBState = SRB_READY; 1251 pDCB->TagMask &= ~(1 << pSRB->TagNumber); 1252 return_code = 1; 1253 } else { 1254 /* 1255 * If trm_StartSCSI return 0 : 1256 * current interrupt status is interrupt enable 1257 * It's said that SCSI processor is unoccupied 1258 */ 1259 pSRB->ScsiPhase = SCSI_NOP1; /* SCSI bus free Phase */ 1260 pACB->pActiveDCB = pDCB; 1261 pDCB->pActiveSRB = pSRB; 1262 return_code = 0; 1263 trm_reg_write16(DO_DATALATCH | DO_HWRESELECT, 1264 TRMREG_SCSI_CONTROL);/* it's important for atn stop*/ 1265 /* 1266 * SCSI cammand 1267 */ 1268 trm_reg_write8(scsicommand,TRMREG_SCSI_COMMAND); 1269 } 1270 return (return_code); 1271} 1272 1273static void 1274trm_Interrupt(vpACB) 1275void *vpACB; 1276{ 1277 PACB pACB; 1278 PDCB pDCB; 1279 PSRB pSRB; 1280 u_int16_t phase; 1281 void (*stateV)(PACB, PSRB, u_int8_t *); 1282 u_int8_t scsi_status=0, scsi_intstatus; 1283 1284 pACB = vpACB; 1285 1286 if (pACB == NULL) { 1287 TRM_DPRINTF("trm_Interrupt: pACB NULL return......"); 1288 return; 1289 } 1290 1291 scsi_status = trm_reg_read16(TRMREG_SCSI_STATUS); 1292 if (!(scsi_status & SCSIINTERRUPT)) { 1293 TRM_DPRINTF("trm_Interrupt: TRMREG_SCSI_STATUS scsi_status = NULL ,return......"); 1294 return; 1295 } 1296 TRM_DPRINTF("scsi_status=%2x,",scsi_status); 1297 1298 scsi_intstatus = trm_reg_read8(TRMREG_SCSI_INTSTATUS); 1299 1300 TRM_DPRINTF("scsi_intstatus=%2x,",scsi_intstatus); 1301 1302 if (scsi_intstatus & (INT_SELTIMEOUT | INT_DISCONNECT)) { 1303 trm_Disconnect(pACB); 1304 return; 1305 } 1306 1307 if (scsi_intstatus & INT_RESELECTED) { 1308 trm_Reselect(pACB); 1309 return; 1310 } 1311 if (scsi_intstatus & INT_SCSIRESET) { 1312 trm_ScsiRstDetect(pACB); 1313 return; 1314 } 1315 1316 if (scsi_intstatus & (INT_BUSSERVICE | INT_CMDDONE)) { 1317 pDCB = pACB->pActiveDCB; 1318 pSRB = pDCB->pActiveSRB; 1319 if (pDCB) { 1320 if (pDCB->DCBFlag & ABORT_DEV_) 1321 trm_EnableMsgOutAbort1(pACB, pSRB); 1322 } 1323 phase = (u_int16_t) pSRB->ScsiPhase; /* phase: */ 1324 stateV = (void *) trm_SCSI_phase0[phase]; 1325 stateV(pACB, pSRB, &scsi_status); 1326 pSRB->ScsiPhase = scsi_status & PHASEMASK; 1327 /* phase:0,1,2,3,4,5,6,7 */ 1328 phase = (u_int16_t) scsi_status & PHASEMASK; 1329 stateV = (void *) trm_SCSI_phase1[phase]; 1330 stateV(pACB, pSRB, &scsi_status); 1331 } 1332} 1333 1334static void 1335trm_MsgOutPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1336{ 1337 1338 if (pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT)) 1339 *pscsi_status = PH_BUS_FREE; 1340 /*.. initial phase*/ 1341} 1342 1343static void 1344trm_MsgOutPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1345{ 1346 u_int8_t bval; 1347 u_int16_t i, cnt; 1348 u_int8_t * ptr; 1349 PDCB pDCB; 1350 1351 trm_reg_write16(DO_CLRFIFO, TRMREG_SCSI_CONTROL); 1352 pDCB = pACB->pActiveDCB; 1353 if (!(pSRB->SRBState & SRB_MSGOUT)) { 1354 cnt = pSRB->MsgCnt; 1355 if (cnt) { 1356 ptr = (u_int8_t *) pSRB->MsgOutBuf; 1357 for (i = 0; i < cnt; i++) { 1358 trm_reg_write8(*ptr, TRMREG_SCSI_FIFO); 1359 ptr++; 1360 } 1361 pSRB->MsgCnt = 0; 1362 if ((pDCB->DCBFlag & ABORT_DEV_) && 1363 (pSRB->MsgOutBuf[0] == MSG_ABORT)) { 1364 pSRB->SRBState = SRB_ABORT_SENT; 1365 } 1366 } else { 1367 bval = MSG_ABORT; 1368 if ((pSRB->CmdBlock[0] == INQUIRY) || 1369 (pSRB->CmdBlock[0] == REQUEST_SENSE) || 1370 (pSRB->SRBFlag & AUTO_REQSENSE)) { 1371 if (pDCB->SyncMode & SYNC_NEGO_ENABLE) { 1372 goto mop1; 1373 } 1374 } 1375 trm_reg_write8(bval, TRMREG_SCSI_FIFO); 1376 } 1377 } else { 1378mop1: /* message out phase */ 1379 if (!(pSRB->SRBState & SRB_DO_WIDE_NEGO) 1380 && (pDCB->SyncMode & WIDE_NEGO_ENABLE)) { 1381 /* 1382 * WIDE DATA TRANSFER REQUEST code (03h) 1383 */ 1384 pDCB->SyncMode &= ~(SYNC_NEGO_DONE | EN_ATN_STOP); 1385 trm_reg_write8((pDCB->IdentifyMsg & 0xBF), 1386 TRMREG_SCSI_FIFO); 1387 trm_reg_write8(MSG_EXTENDED,TRMREG_SCSI_FIFO); 1388 /* (01h) */ 1389 trm_reg_write8(2,TRMREG_SCSI_FIFO); 1390 /* Message length (02h) */ 1391 trm_reg_write8(3,TRMREG_SCSI_FIFO); 1392 /* wide data xfer (03h) */ 1393 trm_reg_write8(1,TRMREG_SCSI_FIFO); 1394 /* width:0(8bit),1(16bit),2(32bit) */ 1395 pSRB->SRBState |= SRB_DO_WIDE_NEGO; 1396 } else if (!(pSRB->SRBState & SRB_DO_SYNC_NEGO) 1397 && (pDCB->SyncMode & SYNC_NEGO_ENABLE)) { 1398 /* 1399 * SYNCHRONOUS DATA TRANSFER REQUEST code (01h) 1400 */ 1401 if (!(pDCB->SyncMode & WIDE_NEGO_DONE)) 1402 trm_reg_write8((pDCB->IdentifyMsg & 0xBF), 1403 TRMREG_SCSI_FIFO); 1404 trm_reg_write8(MSG_EXTENDED,TRMREG_SCSI_FIFO); 1405 /* (01h) */ 1406 trm_reg_write8(3,TRMREG_SCSI_FIFO); 1407 /* Message length (03h) */ 1408 trm_reg_write8(1,TRMREG_SCSI_FIFO); 1409 /* SYNCHRONOUS DATA TRANSFER REQUEST code (01h) */ 1410 trm_reg_write8(pDCB->MaxNegoPeriod,TRMREG_SCSI_FIFO); 1411 /* Transfer peeriod factor */ 1412 trm_reg_write8(SYNC_NEGO_OFFSET,TRMREG_SCSI_FIFO); 1413 /* REQ/ACK offset */ 1414 pSRB->SRBState |= SRB_DO_SYNC_NEGO; 1415 } 1416 } 1417 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1418 /* it's important for atn stop */ 1419 /* 1420 * SCSI cammand 1421 */ 1422 trm_reg_write8(SCMD_FIFO_OUT, TRMREG_SCSI_COMMAND); 1423} 1424 1425static void 1426trm_CommandPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1427{ 1428 1429} 1430 1431static void 1432trm_CommandPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1433{ 1434 PDCB pDCB; 1435 u_int8_t * ptr; 1436 u_int16_t i, cnt; 1437 union ccb *pccb; 1438 struct ccb_scsiio *pcsio; 1439 1440 pccb = pSRB->pccb; 1441 pcsio = &pccb->csio; 1442 1443 trm_reg_write16(DO_CLRATN | DO_CLRFIFO , TRMREG_SCSI_CONTROL); 1444 if (!(pSRB->SRBFlag & AUTO_REQSENSE)) { 1445 cnt = (u_int16_t) pSRB->ScsiCmdLen; 1446 ptr = (u_int8_t *) pSRB->CmdBlock; 1447 for (i = 0; i < cnt; i++) { 1448 trm_reg_write8(*ptr, TRMREG_SCSI_FIFO); 1449 ptr++; 1450 } 1451 } else { 1452 trm_reg_write8(REQUEST_SENSE, TRMREG_SCSI_FIFO); 1453 pDCB = pACB->pActiveDCB; 1454 /* target id */ 1455 trm_reg_write8((pDCB->IdentifyMsg << 5), TRMREG_SCSI_FIFO); 1456 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1457 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1458 /* sizeof(struct scsi_sense_data) */ 1459 trm_reg_write8(pcsio->sense_len, TRMREG_SCSI_FIFO); 1460 trm_reg_write8(0, TRMREG_SCSI_FIFO); 1461 } 1462 pSRB->SRBState = SRB_COMMAND; 1463 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1464 /* it's important for atn stop*/ 1465 /* 1466 * SCSI cammand 1467 */ 1468 trm_reg_write8(SCMD_FIFO_OUT, TRMREG_SCSI_COMMAND); 1469} 1470 1471static void 1472trm_DataOutPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1473{ 1474 PDCB pDCB; 1475 u_int8_t TempDMAstatus,SGIndexTemp; 1476 u_int16_t scsi_status; 1477 PSEG pseg; 1478 u_long TempSRBXferredLength,dLeftCounter=0; 1479 1480 pDCB = pSRB->pSRBDCB; 1481 scsi_status = *pscsi_status; 1482 1483 if (!(pSRB->SRBState & SRB_XFERPAD)) { 1484 if (scsi_status & PARITYERROR) 1485 pSRB->SRBStatus |= PARITY_ERROR; 1486 if (!(scsi_status & SCSIXFERDONE)) { 1487 /* 1488 * when data transfer from DMA FIFO to SCSI FIFO 1489 * if there was some data left in SCSI FIFO 1490 */ 1491 dLeftCounter = (u_long) 1492 (trm_reg_read8(TRMREG_SCSI_FIFOCNT) & 0x1F); 1493 if (pDCB->SyncPeriod & WIDE_SYNC) { 1494 /* 1495 * if WIDE scsi SCSI FIFOCNT unit is word 1496 * so need to * 2 1497 */ 1498 dLeftCounter <<= 1; 1499 } 1500 } 1501 /* 1502 * caculate all the residue data that not yet tranfered 1503 * SCSI transfer counter + left in SCSI FIFO data 1504 * 1505 * .....TRM_SCSI_COUNTER (24bits) 1506 * The counter always decrement by one for every SCSI byte 1507 *transfer. 1508 * .....TRM_SCSI_FIFOCNT (5bits) 1509 * The counter is SCSI FIFO offset counter 1510 */ 1511 dLeftCounter += trm_reg_read32(TRMREG_SCSI_COUNTER); 1512 if (dLeftCounter == 1) { 1513 dLeftCounter = 0; 1514 trm_reg_write16(DO_CLRFIFO,TRMREG_SCSI_CONTROL); 1515 } 1516 if ((dLeftCounter == 0) || 1517 (scsi_status & SCSIXFERCNT_2_ZERO)) { 1518 TempDMAstatus = trm_reg_read8(TRMREG_DMA_STATUS); 1519 while (!(TempDMAstatus & DMAXFERCOMP)) { 1520 TempDMAstatus = 1521 trm_reg_read8(TRMREG_DMA_STATUS); 1522 } 1523 pSRB->SRBTotalXferLength = 0; 1524 } else { 1525 /* Update SG list */ 1526 /* 1527 * if transfer not yet complete 1528 * there were some data residue in SCSI FIFO or 1529 * SCSI transfer counter not empty 1530 */ 1531 if (pSRB->SRBTotalXferLength != dLeftCounter) { 1532 /* 1533 * data that had transferred length 1534 */ 1535 TempSRBXferredLength = 1536 pSRB->SRBTotalXferLength - dLeftCounter; 1537 /* 1538 * next time to be transferred length 1539 */ 1540 pSRB->SRBTotalXferLength = dLeftCounter; 1541 /* 1542 * parsing from last time disconnect SRBSGIndex 1543 */ 1544 pseg = 1545 pSRB->SRBSGListPointer + pSRB->SRBSGIndex; 1546 for (SGIndexTemp = pSRB->SRBSGIndex; 1547 SGIndexTemp < pSRB->SRBSGCount; 1548 SGIndexTemp++) { 1549 /* 1550 * find last time which SG transfer be 1551 * disconnect 1552 */ 1553 if (TempSRBXferredLength >= 1554 pseg->length) 1555 TempSRBXferredLength -= 1556 pseg->length; 1557 else { 1558 /* 1559 * update last time disconnected SG 1560 * list 1561 */ 1562 pseg->length -= 1563 TempSRBXferredLength; 1564 /* residue data length */ 1565 pseg->address += 1566 TempSRBXferredLength; 1567 /* residue data pointer */ 1568 pSRB->SRBSGIndex = SGIndexTemp; 1569 break; 1570 } 1571 pseg++; 1572 } 1573 } 1574 } 1575 } 1576 trm_reg_write8(STOPDMAXFER ,TRMREG_DMA_CONTROL); 1577} 1578 1579 1580static void 1581trm_DataOutPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1582{ 1583 u_int16_t ioDir; 1584 /* 1585 * do prepare befor transfer when data out phase 1586 */ 1587 1588 ioDir = XFERDATAOUT; 1589 trm_DataIO_transfer(pACB, pSRB, ioDir); 1590} 1591 1592static void 1593trm_DataInPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1594{ 1595 u_int8_t bval,SGIndexTemp; 1596 u_int16_t scsi_status; 1597 PSEG pseg; 1598 u_long TempSRBXferredLength,dLeftCounter = 0; 1599 1600 scsi_status = *pscsi_status; 1601 if (!(pSRB->SRBState & SRB_XFERPAD)) { 1602 if (scsi_status & PARITYERROR) 1603 pSRB->SRBStatus |= PARITY_ERROR; 1604 dLeftCounter += trm_reg_read32(TRMREG_SCSI_COUNTER); 1605 if ((dLeftCounter == 0) || (scsi_status & SCSIXFERCNT_2_ZERO)) { 1606 bval = trm_reg_read8(TRMREG_DMA_STATUS); 1607 while (!(bval & DMAXFERCOMP)) 1608 bval = trm_reg_read8(TRMREG_DMA_STATUS); 1609 pSRB->SRBTotalXferLength = 0; 1610 } else { 1611 /* 1612 * parsing the case: 1613 * when a transfer not yet complete 1614 * but be disconnected by uper layer 1615 * if transfer not yet complete 1616 * there were some data residue in SCSI FIFO or 1617 * SCSI transfer counter not empty 1618 */ 1619 if (pSRB->SRBTotalXferLength != dLeftCounter) { 1620 /* 1621 * data that had transferred length 1622 */ 1623 TempSRBXferredLength = 1624 pSRB->SRBTotalXferLength - dLeftCounter; 1625 /* 1626 * next time to be transferred length 1627 */ 1628 pSRB->SRBTotalXferLength = dLeftCounter; 1629 /* 1630 * parsing from last time disconnect SRBSGIndex 1631 */ 1632 pseg = pSRB->SRBSGListPointer + pSRB->SRBSGIndex; 1633 for (SGIndexTemp = pSRB->SRBSGIndex; 1634 SGIndexTemp < pSRB->SRBSGCount; 1635 SGIndexTemp++) { 1636 /* 1637 * find last time which SG transfer be disconnect 1638 */ 1639 if (TempSRBXferredLength >= pseg->length) 1640 TempSRBXferredLength -= pseg->length; 1641 else { 1642 /* 1643 * update last time disconnected SG list 1644 */ 1645 pseg->length -= TempSRBXferredLength; 1646 /* residue data length */ 1647 pseg->address += TempSRBXferredLength; 1648 /* residue data pointer */ 1649 pSRB->SRBSGIndex = SGIndexTemp; 1650 break; 1651 } 1652 pseg++; 1653 } 1654 } 1655 } 1656 } 1657} 1658 1659static void 1660trm_DataInPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1661{ 1662 u_int16_t ioDir; 1663 /* 1664 * do prepare befor transfer when data in phase 1665 */ 1666 1667 ioDir = XFERDATAIN; 1668 trm_DataIO_transfer(pACB, pSRB, ioDir); 1669} 1670 1671static void 1672trm_DataIO_transfer(PACB pACB, PSRB pSRB, u_int16_t ioDir) 1673{ 1674 u_int8_t bval; 1675 PDCB pDCB; 1676 1677 pDCB = pSRB->pSRBDCB; 1678 if (pSRB->SRBSGIndex < pSRB->SRBSGCount) { 1679 if (pSRB->SRBTotalXferLength != 0) { 1680 pSRB->SRBSGPhyAddr = vtophys(pSRB->SRBSGListPointer); 1681 /* 1682 * load what physical address of Scatter/Gather list 1683 table want to be transfer 1684 */ 1685 pSRB->SRBState = SRB_DATA_XFER; 1686 trm_reg_write32(0, TRMREG_DMA_XHIGHADDR); 1687 trm_reg_write32( 1688 (pSRB->SRBSGPhyAddr + 1689 ((u_long)pSRB->SRBSGIndex << 3)), 1690 TRMREG_DMA_XLOWADDR); 1691 /* 1692 * load how many bytes in the Scatter/Gather 1693 * list table 1694 */ 1695 trm_reg_write32( 1696 ((u_long)(pSRB->SRBSGCount - pSRB->SRBSGIndex) << 3), 1697 TRMREG_DMA_XCNT); 1698 /* 1699 * load total transfer length (24bits) max value 1700 * 16Mbyte 1701 */ 1702 trm_reg_write32(pSRB->SRBTotalXferLength, 1703 TRMREG_SCSI_COUNTER); 1704 /* Start DMA transfer */ 1705 trm_reg_write16(ioDir, TRMREG_DMA_COMMAND); 1706 /* Start SCSI transfer */ 1707 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1708 /* it's important for atn stop */ 1709 /* 1710 * SCSI cammand 1711 */ 1712 bval = (ioDir == XFERDATAOUT) ? 1713 SCMD_DMA_OUT : SCMD_DMA_IN; 1714 trm_reg_write8(bval, TRMREG_SCSI_COMMAND); 1715 } else { 1716 /* xfer pad */ 1717 if (pSRB->SRBSGCount) { 1718 pSRB->AdaptStatus = H_OVER_UNDER_RUN; 1719 pSRB->SRBStatus |= OVER_RUN; 1720 } 1721 if (pDCB->SyncPeriod & WIDE_SYNC) 1722 trm_reg_write32(2,TRMREG_SCSI_COUNTER); 1723 else 1724 trm_reg_write32(1,TRMREG_SCSI_COUNTER); 1725 if (ioDir == XFERDATAOUT) 1726 trm_reg_write16(0, TRMREG_SCSI_FIFO); 1727 else 1728 trm_reg_read16(TRMREG_SCSI_FIFO); 1729 pSRB->SRBState |= SRB_XFERPAD; 1730 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1731 /* it's important for atn stop */ 1732 /* 1733 * SCSI cammand 1734 */ 1735 bval = (ioDir == XFERDATAOUT) ? 1736 SCMD_FIFO_OUT : SCMD_FIFO_IN; 1737 trm_reg_write8(bval, TRMREG_SCSI_COMMAND); 1738 } 1739 } 1740} 1741 1742static void 1743trm_StatusPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1744{ 1745 1746 pSRB->TargetStatus = trm_reg_read8(TRMREG_SCSI_FIFO); 1747 pSRB->SRBState = SRB_COMPLETED; 1748 *pscsi_status = PH_BUS_FREE; 1749 /*.. initial phase*/ 1750 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1751 /* it's important for atn stop */ 1752 /* 1753 * SCSI cammand 1754 */ 1755 trm_reg_write8(SCMD_MSGACCEPT, TRMREG_SCSI_COMMAND); 1756} 1757 1758 1759 1760static void 1761trm_StatusPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1762{ 1763 1764 if (trm_reg_read16(TRMREG_DMA_COMMAND) & 0x0001) { 1765 if (!(trm_reg_read8(TRMREG_SCSI_FIFOCNT) & 0x40)) 1766 trm_reg_write16(DO_CLRFIFO, TRMREG_SCSI_CONTROL); 1767 if (!(trm_reg_read16(TRMREG_DMA_FIFOCNT) & 0x8000)) 1768 trm_reg_write8(CLRXFIFO, TRMREG_DMA_CONTROL); 1769 } else { 1770 if (!(trm_reg_read16(TRMREG_DMA_FIFOCNT) & 0x8000)) 1771 trm_reg_write8(CLRXFIFO, TRMREG_DMA_CONTROL); 1772 if (!(trm_reg_read8(TRMREG_SCSI_FIFOCNT) & 0x40)) 1773 trm_reg_write16(DO_CLRFIFO, TRMREG_SCSI_CONTROL); 1774 } 1775 pSRB->SRBState = SRB_STATUS; 1776 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 1777 /* it's important for atn stop */ 1778 /* 1779 * SCSI cammand 1780 */ 1781 trm_reg_write8(SCMD_COMP, TRMREG_SCSI_COMMAND); 1782} 1783 1784/* 1785 *scsiiom 1786 * trm_MsgInPhase0: one of trm_SCSI_phase0[] vectors 1787 * stateV = (void *) trm_SCSI_phase0[phase] 1788 * if phase =7 1789 * extended message codes: 1790 * 1791 * code description 1792 * 1793 * 02h Reserved 1794 * 00h MODIFY DATA POINTER 1795 * 01h SYNCHRONOUS DATA TRANSFER REQUEST 1796 * 03h WIDE DATA TRANSFER REQUEST 1797 * 04h - 7Fh Reserved 1798 * 80h - FFh Vendor specific 1799 * 1800 */ 1801 1802static void 1803trm_MsgInPhase0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 1804{ 1805 u_int8_t message_in_code,bIndex,message_in_tag_id; 1806 PDCB pDCB; 1807 PSRB pSRBTemp; 1808 1809 pDCB = pACB->pActiveDCB; 1810 1811 message_in_code = trm_reg_read8(TRMREG_SCSI_FIFO); 1812 if (!(pSRB->SRBState & SRB_EXTEND_MSGIN)) { 1813 if (message_in_code == MSG_DISCONNECT) { 1814 pSRB->SRBState = SRB_DISCONNECT; 1815 goto min6; 1816 } else if (message_in_code == MSG_SAVE_PTR) { 1817 goto min6; 1818 } else if ((message_in_code == MSG_EXTENDED) || 1819 ((message_in_code >= MSG_SIMPLE_QTAG) && 1820 (message_in_code <= MSG_ORDER_QTAG))) { 1821 pSRB->SRBState |= SRB_EXTEND_MSGIN; 1822 pSRB->MsgInBuf[0] = message_in_code; 1823 /* extended message (01h) */ 1824 pSRB->MsgCnt = 1; 1825 pSRB->pMsgPtr = &pSRB->MsgInBuf[1]; 1826 /* extended message length (n) */ 1827 goto min6; 1828 } else if (message_in_code == MSG_REJECT_) { 1829 /* Reject message */ 1830 if (pDCB->SyncMode & WIDE_NEGO_ENABLE) { 1831 /* do wide nego reject */ 1832 pDCB = pSRB->pSRBDCB; 1833 pDCB->SyncMode |= WIDE_NEGO_DONE; 1834 pDCB->SyncMode &= ~(SYNC_NEGO_DONE | 1835 EN_ATN_STOP | WIDE_NEGO_ENABLE); 1836 pSRB->SRBState &= ~(SRB_DO_WIDE_NEGO+SRB_MSGIN); 1837 if ((pDCB->SyncMode & SYNC_NEGO_ENABLE) 1838 && !(pDCB->SyncMode & SYNC_NEGO_DONE)) { 1839 /* Set ATN, in case ATN was clear */ 1840 pSRB->SRBState |= SRB_MSGOUT; 1841 trm_reg_write16( 1842 DO_SETATN, 1843 TRMREG_SCSI_CONTROL); 1844 } else { 1845 /* Clear ATN */ 1846 trm_reg_write16( 1847 DO_CLRATN, 1848 TRMREG_SCSI_CONTROL); 1849 } 1850 } else if (pDCB->SyncMode & SYNC_NEGO_ENABLE) { 1851 /* do sync nego reject */ 1852 trm_reg_write16(DO_CLRATN,TRMREG_SCSI_CONTROL); 1853 if (pSRB->SRBState & SRB_DO_SYNC_NEGO) { 1854 pDCB = pSRB->pSRBDCB; 1855 pDCB->SyncMode &= 1856 ~(SYNC_NEGO_ENABLE+SYNC_NEGO_DONE); 1857 pDCB->SyncPeriod = 0; 1858 pDCB->SyncOffset = 0; 1859 goto re_prog; 1860 } 1861 } 1862 goto min6; 1863 } else if (message_in_code == MSG_IGNOREWIDE) { 1864 trm_reg_write32(1, TRMREG_SCSI_COUNTER); 1865 trm_reg_read8(TRMREG_SCSI_FIFO); 1866 goto min6; 1867 } else { 1868 /* Restore data pointer message */ 1869 /* Save data pointer message */ 1870 /* Completion message */ 1871 /* NOP message */ 1872 goto min6; 1873 } 1874 } else { 1875 /* 1876 * Parsing incomming extented messages 1877 */ 1878 *pSRB->pMsgPtr = message_in_code; 1879 pSRB->MsgCnt++; 1880 pSRB->pMsgPtr++; 1881 TRM_DPRINTF("pSRB->MsgInBuf[0]=%2x \n ",pSRB->MsgInBuf[0]); 1882 TRM_DPRINTF("pSRB->MsgInBuf[1]=%2x \n ",pSRB->MsgInBuf[1]); 1883 TRM_DPRINTF("pSRB->MsgInBuf[2]=%2x \n ",pSRB->MsgInBuf[2]); 1884 TRM_DPRINTF("pSRB->MsgInBuf[3]=%2x \n ",pSRB->MsgInBuf[3]); 1885 TRM_DPRINTF("pSRB->MsgInBuf[4]=%2x \n ",pSRB->MsgInBuf[4]); 1886 if ((pSRB->MsgInBuf[0] >= MSG_SIMPLE_QTAG) 1887 && (pSRB->MsgInBuf[0] <= MSG_ORDER_QTAG)) { 1888 /* 1889 * is QUEUE tag message : 1890 * 1891 * byte 0: 1892 * HEAD QUEUE TAG (20h) 1893 * ORDERED QUEUE TAG (21h) 1894 * SIMPLE QUEUE TAG (22h) 1895 * byte 1: 1896 * Queue tag (00h - FFh) 1897 */ 1898 if (pSRB->MsgCnt == 2) { 1899 pSRB->SRBState = 0; 1900 message_in_tag_id = pSRB->MsgInBuf[1]; 1901 pSRB = pDCB->pGoingSRB; 1902 pSRBTemp = pDCB->pGoingLastSRB; 1903 if (pSRB) { 1904 for (;;) { 1905 if (pSRB->TagNumber != 1906 message_in_tag_id) { 1907 if (pSRB == pSRBTemp) { 1908 goto mingx0; 1909 } 1910 pSRB = pSRB->pNextSRB; 1911 } else 1912 break; 1913 } 1914 if (pDCB->DCBFlag & ABORT_DEV_) { 1915 pSRB->SRBState = SRB_ABORT_SENT; 1916 trm_EnableMsgOutAbort1( 1917 pACB, pSRB); 1918 } 1919 if (!(pSRB->SRBState & SRB_DISCONNECT)) 1920 goto mingx0; 1921 pDCB->pActiveSRB = pSRB; 1922 pSRB->SRBState = SRB_DATA_XFER; 1923 } else { 1924mingx0: 1925 pSRB = pACB->pTmpSRB; 1926 pSRB->SRBState = SRB_UNEXPECT_RESEL; 1927 pDCB->pActiveSRB = pSRB; 1928 pSRB->MsgOutBuf[0] = MSG_ABORT_TAG; 1929 trm_EnableMsgOutAbort2( 1930 pACB, 1931 pSRB); 1932 } 1933 } 1934 } else if ((pSRB->MsgInBuf[0] == MSG_EXTENDED) && 1935 (pSRB->MsgInBuf[2] == 3) && (pSRB->MsgCnt == 4)) { 1936 /* 1937 * is Wide data xfer Extended message : 1938 * ====================================== 1939 * WIDE DATA TRANSFER REQUEST 1940 * ====================================== 1941 * byte 0 : Extended message (01h) 1942 * byte 1 : Extended message length (02h) 1943 * byte 2 : WIDE DATA TRANSFER code (03h) 1944 * byte 3 : Transfer width exponent 1945 */ 1946 pDCB = pSRB->pSRBDCB; 1947 pSRB->SRBState &= ~(SRB_EXTEND_MSGIN+SRB_DO_WIDE_NEGO); 1948 if ((pSRB->MsgInBuf[1] != 2)) { 1949 /* Length is wrong, reject it */ 1950 pDCB->SyncMode &= 1951 ~(WIDE_NEGO_ENABLE+WIDE_NEGO_DONE); 1952 pSRB->MsgCnt = 1; 1953 pSRB->MsgInBuf[0] = MSG_REJECT_; 1954 trm_reg_write16(DO_SETATN, TRMREG_SCSI_CONTROL); 1955 goto min6; 1956 } 1957 if (pDCB->SyncMode & WIDE_NEGO_ENABLE) { 1958 /* Do wide negoniation */ 1959 if (pSRB->MsgInBuf[3] > 2) { 1960 /* > 32 bit */ 1961 /* reject_msg: */ 1962 pDCB->SyncMode &= 1963 ~(WIDE_NEGO_ENABLE+WIDE_NEGO_DONE); 1964 pSRB->MsgCnt = 1; 1965 pSRB->MsgInBuf[0] = MSG_REJECT_; 1966 trm_reg_write16(DO_SETATN, 1967 TRMREG_SCSI_CONTROL); 1968 goto min6; 1969 } 1970 if (pSRB->MsgInBuf[3] == 2) { 1971 pSRB->MsgInBuf[3] = 1; 1972 /* do 16 bits */ 1973 } else { 1974 if (!(pDCB->SyncMode 1975 & WIDE_NEGO_DONE)) { 1976 pSRB->SRBState &= 1977 ~(SRB_DO_WIDE_NEGO+SRB_MSGIN); 1978 pDCB->SyncMode |= 1979 WIDE_NEGO_DONE; 1980 pDCB->SyncMode &= 1981 ~(SYNC_NEGO_DONE | 1982 EN_ATN_STOP | 1983 WIDE_NEGO_ENABLE); 1984 if (pSRB->MsgInBuf[3] != 0) { 1985 /* is Wide data xfer */ 1986 pDCB->SyncPeriod |= 1987 WIDE_SYNC; 1988 pDCB->tinfo.current.width 1989 = MSG_EXT_WDTR_BUS_16_BIT; 1990 pDCB->tinfo.goal.width 1991 = MSG_EXT_WDTR_BUS_16_BIT; 1992 } 1993 } 1994 } 1995 } else 1996 pSRB->MsgInBuf[3] = 0; 1997 pSRB->SRBState |= SRB_MSGOUT; 1998 trm_reg_write16(DO_SETATN,TRMREG_SCSI_CONTROL); 1999 goto min6; 2000 } else if ((pSRB->MsgInBuf[0] == MSG_EXTENDED) && 2001 (pSRB->MsgInBuf[2] == 1) && (pSRB->MsgCnt == 5)) { 2002 /* 2003 * is 8bit transfer Extended message : 2004 * ================================= 2005 * SYNCHRONOUS DATA TRANSFER REQUEST 2006 * ================================= 2007 * byte 0 : Extended message (01h) 2008 * byte 1 : Extended message length (03) 2009 * byte 2 : SYNCHRONOUS DATA TRANSFER code (01h) 2010 * byte 3 : Transfer period factor 2011 * byte 4 : REQ/ACK offset 2012 */ 2013 pSRB->SRBState &= ~(SRB_EXTEND_MSGIN+SRB_DO_SYNC_NEGO); 2014 if ((pSRB->MsgInBuf[1] != 3) || 2015 (pSRB->MsgInBuf[2] != 1)) { 2016 /* reject_msg: */ 2017 pSRB->MsgCnt = 1; 2018 pSRB->MsgInBuf[0] = MSG_REJECT_; 2019 trm_reg_write16(DO_SETATN, TRMREG_SCSI_CONTROL); 2020 } else if (!(pSRB->MsgInBuf[3]) || !(pSRB->MsgInBuf[4])) { 2021 /* set async */ 2022 pDCB = pSRB->pSRBDCB; 2023 /* disable sync & sync nego */ 2024 pDCB->SyncMode &= 2025 ~(SYNC_NEGO_ENABLE+SYNC_NEGO_DONE); 2026 pDCB->SyncPeriod = 0; 2027 pDCB->SyncOffset = 0; 2028 pDCB->tinfo.goal.period = 0; 2029 pDCB->tinfo.goal.offset = 0; 2030 pDCB->tinfo.current.period = 0; 2031 pDCB->tinfo.current.offset = 0; 2032 pDCB->tinfo.current.width = 2033 MSG_EXT_WDTR_BUS_8_BIT; 2034 goto re_prog; 2035 } else { 2036 /* set sync */ 2037 pDCB = pSRB->pSRBDCB; 2038 pDCB->SyncMode |= 2039 SYNC_NEGO_ENABLE+SYNC_NEGO_DONE; 2040 pDCB->MaxNegoPeriod = pSRB->MsgInBuf[3]; 2041 /* Transfer period factor */ 2042 pDCB->SyncOffset = pSRB->MsgInBuf[4]; 2043 /* REQ/ACK offset */ 2044 for (bIndex = 0; bIndex < 7; bIndex++) { 2045 if (pSRB->MsgInBuf[3] <= 2046 dc395x_trm_clock_period[bIndex]) { 2047 break; 2048 } 2049 } 2050 pDCB->tinfo.goal.period = 2051 dc395x_trm_tinfo_sync_period[bIndex]; 2052 pDCB->tinfo.current.period = 2053 dc395x_trm_tinfo_sync_period[bIndex]; 2054 pDCB->tinfo.goal.offset = pDCB->SyncOffset; 2055 pDCB->tinfo.current.offset = pDCB->SyncOffset; 2056 pDCB->SyncPeriod |= (bIndex | ALT_SYNC); 2057re_prog: 2058 /* 2059 * 2060 * program SCSI control register 2061 * 2062 */ 2063 trm_reg_write8(pDCB->SyncPeriod, 2064 TRMREG_SCSI_SYNC); 2065 trm_reg_write8(pDCB->SyncOffset, 2066 TRMREG_SCSI_OFFSET); 2067 trm_SetXferRate(pACB,pSRB,pDCB); 2068 } 2069 } 2070 } 2071min6: 2072 *pscsi_status = PH_BUS_FREE; 2073 /* .. initial phase */ 2074 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 2075 /* it's important for atn stop */ 2076 /* 2077 * SCSI cammand 2078 */ 2079 trm_reg_write8(SCMD_MSGACCEPT, TRMREG_SCSI_COMMAND); 2080} 2081 2082static void 2083trm_MsgInPhase1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 2084{ 2085 2086 trm_reg_write16(DO_CLRFIFO, TRMREG_SCSI_CONTROL); 2087 trm_reg_write32(1,TRMREG_SCSI_COUNTER); 2088 if (!(pSRB->SRBState & SRB_MSGIN)) { 2089 pSRB->SRBState &= SRB_DISCONNECT; 2090 pSRB->SRBState |= SRB_MSGIN; 2091 } 2092 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 2093 /* it's important for atn stop*/ 2094 /* 2095 * SCSI cammand 2096 */ 2097 trm_reg_write8(SCMD_FIFO_IN, TRMREG_SCSI_COMMAND); 2098} 2099 2100static void 2101trm_Nop0(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 2102{ 2103 2104} 2105 2106static void 2107trm_Nop1(PACB pACB, PSRB pSRB, u_int8_t *pscsi_status) 2108{ 2109 2110} 2111 2112static void 2113trm_SetXferRate(PACB pACB,PSRB pSRB, PDCB pDCB) 2114{ 2115 u_int16_t cnt, i; 2116 u_int8_t bval; 2117 PDCB pDCBTemp; 2118 u_int target_id,target_lun; 2119 2120 /* 2121 * set all lun device's period , offset 2122 */ 2123 target_id = pSRB->pccb->ccb_h.target_id; 2124 target_lun = pSRB->pccb->ccb_h.target_lun; 2125 TRM_DPRINTF("trm_SetXferRate:target_id= %d ,target_lun= %d \n" 2126 ,target_id,target_lun); 2127 if (!(pDCB->IdentifyMsg & 0x07)) { 2128 if (!pACB->scan_devices[target_id][target_lun]) { 2129 pDCBTemp = pACB->pLinkDCB; 2130 cnt = pACB->DeviceCnt; 2131 bval = pDCB->TargetID; 2132 for (i = 0; i < cnt; i++) { 2133 if (pDCBTemp->TargetID == bval) { 2134 pDCBTemp->SyncPeriod = pDCB->SyncPeriod; 2135 pDCBTemp->SyncOffset = pDCB->SyncOffset; 2136 pDCBTemp->SyncMode = pDCB->SyncMode; 2137 } 2138 pDCBTemp = pDCBTemp->pNextDCB; 2139 } 2140 } 2141 } 2142 return; 2143} 2144 2145/* 2146 * scsiiom 2147 * trm_Interrupt 2148 * 2149 * 2150 * ---SCSI bus phase 2151 * 2152 * PH_DATA_OUT 0x00 Data out phase 2153 * PH_DATA_IN 0x01 Data in phase 2154 * PH_COMMAND 0x02 Command phase 2155 * PH_STATUS 0x03 Status phase 2156 * PH_BUS_FREE 0x04 Invalid phase used as bus free 2157 * PH_BUS_FREE 0x05 Invalid phase used as bus free 2158 * PH_MSG_OUT 0x06 Message out phase 2159 * PH_MSG_IN 0x07 Message in phase 2160 * 2161 */ 2162static void 2163trm_Disconnect(PACB pACB) 2164{ 2165 PDCB pDCB; 2166 PSRB pSRB, psrb; 2167 int intflag; 2168 u_int16_t i,j, cnt; 2169 u_int8_t bval; 2170 u_int target_id,target_lun; 2171 2172 TRM_DPRINTF("trm_Disconnect...............\n "); 2173 2174 intflag = splcam(); 2175 pDCB = pACB->pActiveDCB; 2176 if (!pDCB) { 2177 TRM_DPRINTF(" Exception Disconnect DCB=NULL..............\n "); 2178 j = 400; 2179 while (--j) 2180 DELAY(1); 2181 /* 1 msec */ 2182 trm_reg_write16((DO_CLRFIFO | DO_HWRESELECT), 2183 TRMREG_SCSI_CONTROL); 2184 return; 2185 } 2186 pSRB = pDCB->pActiveSRB; 2187 /* bug pSRB=0 */ 2188 target_id = pSRB->pccb->ccb_h.target_id; 2189 target_lun = pSRB->pccb->ccb_h.target_lun; 2190 TRM_DPRINTF(":pDCB->pActiveSRB= %8x \n ",(u_int) pDCB->pActiveSRB); 2191 pACB->pActiveDCB = 0; 2192 pSRB->ScsiPhase = PH_BUS_FREE; 2193 /* SCSI bus free Phase */ 2194 trm_reg_write16((DO_CLRFIFO | DO_HWRESELECT), TRMREG_SCSI_CONTROL); 2195 if (pSRB->SRBState & SRB_UNEXPECT_RESEL) { 2196 pSRB->SRBState = 0; 2197 trm_DoWaitingSRB(pACB); 2198 } else if (pSRB->SRBState & SRB_ABORT_SENT) { 2199 pDCB->TagMask = 0; 2200 pDCB->DCBFlag = 0; 2201 cnt = pDCB->GoingSRBCnt; 2202 pDCB->GoingSRBCnt = 0; 2203 pSRB = pDCB->pGoingSRB; 2204 for (i = 0; i < cnt; i++) { 2205 psrb = pSRB->pNextSRB; 2206 pSRB->pNextSRB = pACB->pFreeSRB; 2207 pACB->pFreeSRB = pSRB; 2208 pSRB = psrb; 2209 } 2210 pDCB->pGoingSRB = 0; 2211 trm_DoWaitingSRB(pACB); 2212 } else { 2213 if ((pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) || 2214 !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED))) { 2215 /* Selection time out */ 2216 if (!(pACB->scan_devices[target_id][target_lun])) { 2217 pSRB->SRBState = SRB_READY; 2218 trm_RewaitSRB(pDCB, pSRB); 2219 } else { 2220 pSRB->TargetStatus = SCSI_STAT_SEL_TIMEOUT; 2221 goto disc1; 2222 } 2223 } else if (pSRB->SRBState & SRB_DISCONNECT) { 2224 /* 2225 * SRB_DISCONNECT 2226 */ 2227 trm_DoWaitingSRB(pACB); 2228 } else if (pSRB->SRBState & SRB_COMPLETED) { 2229disc1: 2230 /* 2231 * SRB_COMPLETED 2232 */ 2233 if (pDCB->MaxCommand > 1) { 2234 bval = pSRB->TagNumber; 2235 pDCB->TagMask &= (~(1 << bval)); 2236 /* free tag mask */ 2237 } 2238 pDCB->pActiveSRB = 0; 2239 pSRB->SRBState = SRB_FREE; 2240 trm_SRBdone(pACB, pDCB, pSRB); 2241 } 2242 } 2243 splx(intflag); 2244 return; 2245} 2246 2247static void 2248trm_Reselect(PACB pACB) 2249{ 2250 PDCB pDCB; 2251 PSRB pSRB; 2252 u_int16_t RselTarLunId; 2253 2254 TRM_DPRINTF("trm_Reselect................. \n"); 2255 pDCB = pACB->pActiveDCB; 2256 if (pDCB) { 2257 /* Arbitration lost but Reselection win */ 2258 pSRB = pDCB->pActiveSRB; 2259 pSRB->SRBState = SRB_READY; 2260 trm_RewaitSRB(pDCB, pSRB); 2261 } 2262 /* Read Reselected Target Id and LUN */ 2263 RselTarLunId = trm_reg_read16(TRMREG_SCSI_TARGETID) & 0x1FFF; 2264 pDCB = pACB->pLinkDCB; 2265 while (RselTarLunId != *((u_int16_t *) &pDCB->TargetID)) { 2266 /* get pDCB of the reselect id */ 2267 pDCB = pDCB->pNextDCB; 2268 } 2269 2270 pACB->pActiveDCB = pDCB; 2271 if (pDCB->SyncMode & EN_TAG_QUEUING) { 2272 pSRB = pACB->pTmpSRB; 2273 pDCB->pActiveSRB = pSRB; 2274 } else { 2275 pSRB = pDCB->pActiveSRB; 2276 if (!pSRB || !(pSRB->SRBState & SRB_DISCONNECT)) { 2277 /* 2278 * abort command 2279 */ 2280 pSRB = pACB->pTmpSRB; 2281 pSRB->SRBState = SRB_UNEXPECT_RESEL; 2282 pDCB->pActiveSRB = pSRB; 2283 trm_EnableMsgOutAbort1(pACB, pSRB); 2284 } else { 2285 if (pDCB->DCBFlag & ABORT_DEV_) { 2286 pSRB->SRBState = SRB_ABORT_SENT; 2287 trm_EnableMsgOutAbort1(pACB, pSRB); 2288 } else 2289 pSRB->SRBState = SRB_DATA_XFER; 2290 } 2291 } 2292 pSRB->ScsiPhase = PH_BUS_FREE; 2293 /* SCSI bus free Phase */ 2294 /* 2295 * Program HA ID, target ID, period and offset 2296 */ 2297 trm_reg_write8((u_int8_t) RselTarLunId,TRMREG_SCSI_TARGETID); 2298 /* target ID */ 2299 trm_reg_write8(pACB->AdaptSCSIID,TRMREG_SCSI_HOSTID); 2300 /* host ID */ 2301 trm_reg_write8(pDCB->SyncPeriod,TRMREG_SCSI_SYNC); 2302 /* period */ 2303 trm_reg_write8(pDCB->SyncOffset,TRMREG_SCSI_OFFSET); 2304 /* offset */ 2305 trm_reg_write16(DO_DATALATCH, TRMREG_SCSI_CONTROL); 2306 /* it's important for atn stop*/ 2307 /* 2308 * SCSI cammand 2309 */ 2310 trm_reg_write8(SCMD_MSGACCEPT, TRMREG_SCSI_COMMAND); 2311 /* to rls the /ACK signal */ 2312} 2313 2314static void 2315trm_SRBdone(PACB pACB, PDCB pDCB, PSRB pSRB) 2316{ 2317 PSRB psrb; 2318 u_int8_t bval, bval1,status; 2319 union ccb *pccb; 2320 struct ccb_scsiio *pcsio; 2321 PSCSI_INQDATA ptr; 2322 int intflag; 2323 u_int target_id,target_lun; 2324 PDCB pTempDCB; 2325 2326 pccb = pSRB->pccb; 2327 if (pccb == NULL) 2328 return; 2329 pcsio = &pccb->csio; 2330 target_id = pSRB->pccb->ccb_h.target_id; 2331 target_lun = pSRB->pccb->ccb_h.target_lun; 2332 if ((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2333 bus_dmasync_op_t op; 2334 if ((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 2335 op = BUS_DMASYNC_POSTREAD; 2336 else 2337 op = BUS_DMASYNC_POSTWRITE; 2338 bus_dmamap_sync(pACB->buffer_dmat, pSRB->dmamap, op); 2339 bus_dmamap_unload(pACB->buffer_dmat, pSRB->dmamap); 2340 } 2341 /* 2342 * 2343 * target status 2344 * 2345 */ 2346 status = pSRB->TargetStatus; 2347 pcsio->scsi_status=SCSI_STAT_GOOD; 2348 pccb->ccb_h.status = CAM_REQ_CMP; 2349 if (pSRB->SRBFlag & AUTO_REQSENSE) { 2350 /* 2351 * status of auto request sense 2352 */ 2353 pSRB->SRBFlag &= ~AUTO_REQSENSE; 2354 pSRB->AdaptStatus = 0; 2355 pSRB->TargetStatus = SCSI_STATUS_CHECK_COND; 2356 2357 if (status == SCSI_STATUS_CHECK_COND) { 2358 pccb->ccb_h.status = CAM_SEL_TIMEOUT; 2359 goto ckc_e; 2360 } 2361 *((u_long *) &(pSRB->CmdBlock[0])) = pSRB->Segment0[0]; 2362 *((u_long *) &(pSRB->CmdBlock[4])) = pSRB->Segment0[1]; 2363 pSRB->SRBTotalXferLength = pSRB->Segment1[1]; 2364 pSRB->SegmentX[0].address = pSRB->SgSenseTemp.address; 2365 pSRB->SegmentX[0].length = pSRB->SgSenseTemp.length; 2366 pcsio->scsi_status = SCSI_STATUS_CHECK_COND; 2367 pccb->ccb_h.status = CAM_AUTOSNS_VALID; 2368 goto ckc_e; 2369 } 2370 /* 2371 * target status 2372 */ 2373 if (status) { 2374 if (status == SCSI_STATUS_CHECK_COND) { 2375 if ((pcsio->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0) { 2376 TRM_DPRINTF("trm_RequestSense..................\n"); 2377 trm_RequestSense(pACB, pDCB, pSRB); 2378 return; 2379 } 2380 pcsio->scsi_status = SCSI_STATUS_CHECK_COND; 2381 pccb->ccb_h.status = CAM_AUTOSNS_VALID | 2382 CAM_SCSI_STATUS_ERROR; 2383 goto ckc_e; 2384 } else if (status == SCSI_STAT_QUEUEFULL) { 2385 bval = (u_int8_t) pDCB->GoingSRBCnt; 2386 bval--; 2387 pDCB->MaxCommand = bval; 2388 trm_RewaitSRB(pDCB, pSRB); 2389 pSRB->AdaptStatus = 0; 2390 pSRB->TargetStatus = 0; 2391 pcsio->scsi_status = SCSI_STAT_QUEUEFULL; 2392 pccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; 2393 goto ckc_e; 2394 } else if (status == SCSI_STAT_SEL_TIMEOUT) { 2395 pSRB->AdaptStatus = H_SEL_TIMEOUT; 2396 pSRB->TargetStatus = 0; 2397 pcsio->scsi_status = SCSI_STAT_SEL_TIMEOUT; 2398 pccb->ccb_h.status = CAM_SEL_TIMEOUT; 2399 } else if (status == SCSI_STAT_BUSY) { 2400 TRM_DPRINTF("trm: target busy at %s %d\n", 2401 __FILE__, __LINE__); 2402 pcsio->scsi_status = SCSI_STAT_BUSY; 2403 pccb->ccb_h.status = CAM_SCSI_BUSY; 2404 /* The device busy, try again later? */ 2405 } else if (status == SCSI_STAT_RESCONFLICT) { 2406 TRM_DPRINTF("trm: target reserved at %s %d\n", 2407 __FILE__, __LINE__); 2408 pcsio->scsi_status = SCSI_STAT_RESCONFLICT; 2409 pccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; /*XXX*/ 2410 } else { 2411 pSRB->AdaptStatus = 0; 2412 if (pSRB->RetryCnt) { 2413 pSRB->RetryCnt--; 2414 pSRB->TargetStatus = 0; 2415 pSRB->SRBSGIndex = 0; 2416 pSRB->SRBSGListPointer = (PSEG) 2417 &pSRB->SegmentX[0]; 2418 if (trm_StartSCSI(pACB, pDCB, pSRB)) { 2419 /* 2420 * If trm_StartSCSI return 1 : 2421 * current interrupt status is interrupt 2422 * disreenable 2423 * It's said that SCSI processor has more 2424 * one SRB need to do 2425 */ 2426 trm_RewaitSRB(pDCB, pSRB); 2427 } 2428 return; 2429 } else { 2430 TRM_DPRINTF("trm: driver stuffup at %s %d\n", 2431 __FILE__, __LINE__); 2432 pccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; 2433 } 2434 } 2435 } else { 2436 /* 2437 * process initiator status.......................... 2438 * Adapter (initiator) status 2439 */ 2440 status = pSRB->AdaptStatus; 2441 if (status & H_OVER_UNDER_RUN) { 2442 pSRB->TargetStatus = 0; 2443 pccb->ccb_h.status = CAM_DATA_RUN_ERR; 2444 /* Illegal length (over/under run) */ 2445 } else if (pSRB->SRBStatus & PARITY_ERROR) { 2446 TRM_DPRINTF("trm: driver stuffup %s %d\n", 2447 __FILE__, __LINE__); 2448 pDCB->tinfo.goal.period = 0; 2449 pDCB->tinfo.goal.offset = 0; 2450 /* Driver failed to perform operation */ 2451 pccb->ccb_h.status = CAM_UNCOR_PARITY; 2452 } else { 2453 /* no error */ 2454 pSRB->AdaptStatus = 0; 2455 pSRB->TargetStatus = 0; 2456 pccb->ccb_h.status = CAM_REQ_CMP; 2457 /* there is no error, (sense is invalid) */ 2458 } 2459 } 2460ckc_e: 2461 if (pACB->scan_devices[target_id][target_lun]) { 2462 /* 2463 * if SCSI command in "scan devices" duty 2464 */ 2465 if (pSRB->CmdBlock[0] == TEST_UNIT_READY) 2466 pACB->scan_devices[target_id][target_lun] = 0; 2467 /* SCSI command phase :test unit ready */ 2468 else if (pSRB->CmdBlock[0] == INQUIRY) { 2469 /* 2470 * SCSI command phase :inquiry scsi device data 2471 * (type,capacity,manufacture.... 2472 */ 2473 if (pccb->ccb_h.status == CAM_SEL_TIMEOUT) 2474 goto NO_DEV; 2475 ptr = (PSCSI_INQDATA) pcsio->data_ptr; 2476 /* page fault */ 2477 TRM_DPRINTF("trm_SRBdone..PSCSI_INQDATA:%2x \n", 2478 ptr->DevType); 2479 bval1 = ptr->DevType & SCSI_DEVTYPE; 2480 if (bval1 == SCSI_NODEV) { 2481NO_DEV: 2482 TRM_DPRINTF("trm_SRBdone NO Device:target_id= %d ,target_lun= %d \n", 2483 target_id, 2484 target_lun); 2485 intflag = splcam(); 2486 pACB->scan_devices[target_id][target_lun] = 0; 2487 /* no device set scan device flag =0*/ 2488 /* pDCB Q link */ 2489 /* move the head of DCB to tempDCB*/ 2490 pTempDCB=pACB->pLinkDCB; 2491 /* search current DCB for pass link */ 2492 while (pTempDCB->pNextDCB != pDCB) { 2493 pTempDCB = pTempDCB->pNextDCB; 2494 } 2495 /* 2496 * when the current DCB found than connect 2497 * current DCB tail 2498 */ 2499 /* to the DCB tail that before current DCB */ 2500 pTempDCB->pNextDCB = pDCB->pNextDCB; 2501 /* 2502 * if there was only one DCB ,connect his tail 2503 * to his head 2504 */ 2505 if (pACB->pLinkDCB == pDCB) 2506 pACB->pLinkDCB = pTempDCB->pNextDCB; 2507 if (pACB->pDCBRunRobin == pDCB) 2508 pACB->pDCBRunRobin = pTempDCB->pNextDCB; 2509 pACB->DeviceCnt--; 2510 if (pACB->DeviceCnt == 0) { 2511 pACB->pLinkDCB = NULL; 2512 pACB->pDCBRunRobin = NULL; 2513 } 2514 splx(intflag); 2515 } else { 2516#ifdef trm_DEBUG1 2517 int j; 2518 for (j = 0; j < 28; j++) { 2519 TRM_DPRINTF("ptr=%2x ", 2520 ((u_int8_t *)ptr)[j]); 2521 } 2522#endif 2523 pDCB->DevType = bval1; 2524 if (bval1 == SCSI_DASD || 2525 bval1 == SCSI_OPTICAL) { 2526 if ((((ptr->Vers & 0x07) >= 2) || 2527 ((ptr->RDF & 0x0F) == 2)) && 2528 (ptr->Flags & SCSI_INQ_CMDQUEUE) && 2529 (pDCB->DevMode & TAG_QUEUING_) && 2530 (pDCB->DevMode & EN_DISCONNECT_)) { 2531 if (pDCB->DevMode & 2532 TAG_QUEUING_) { 2533 pDCB->MaxCommand = 2534 pACB->TagMaxNum; 2535 pDCB->SyncMode |= 2536 EN_TAG_QUEUING; 2537 pDCB->TagMask = 0; 2538 pDCB->tinfo.disc_tag |= 2539 TRM_CUR_TAGENB; 2540 } else { 2541 pDCB->SyncMode |= 2542 EN_ATN_STOP; 2543 pDCB->tinfo.disc_tag &= 2544 ~TRM_CUR_TAGENB; 2545 } 2546 } 2547 } 2548 } 2549 /* pSRB->CmdBlock[0] == INQUIRY */ 2550 } 2551 /* pACB->scan_devices[target_id][target_lun] */ 2552 } 2553 intflag = splcam(); 2554 /* ReleaseSRB(pDCB, pSRB); */ 2555 if (pSRB == pDCB->pGoingSRB) 2556 pDCB->pGoingSRB = pSRB->pNextSRB; 2557 else { 2558 psrb = pDCB->pGoingSRB; 2559 while (psrb->pNextSRB != pSRB) { 2560 psrb = psrb->pNextSRB; 2561 } 2562 psrb->pNextSRB = pSRB->pNextSRB; 2563 if (pSRB == pDCB->pGoingLastSRB) { 2564 pDCB->pGoingLastSRB = psrb; 2565 } 2566 } 2567 pSRB->pNextSRB = pACB->pFreeSRB; 2568 pACB->pFreeSRB = pSRB; 2569 pDCB->GoingSRBCnt--; 2570 trm_DoWaitingSRB(pACB); 2571 2572 splx(intflag); 2573 /* Notify cmd done */ 2574 xpt_done (pccb); 2575} 2576 2577static void 2578trm_DoingSRB_Done(PACB pACB) 2579{ 2580 PDCB pDCB, pdcb; 2581 PSRB psrb, psrb2; 2582 u_int16_t cnt, i; 2583 union ccb *pccb; 2584 2585 pDCB = pACB->pLinkDCB; 2586 if (pDCB == NULL) 2587 return; 2588 pdcb = pDCB; 2589 do { 2590 cnt = pdcb->GoingSRBCnt; 2591 psrb = pdcb->pGoingSRB; 2592 for (i = 0; i < cnt; i++) { 2593 psrb2 = psrb->pNextSRB; 2594 pccb = psrb->pccb; 2595 pccb->ccb_h.status = CAM_SEL_TIMEOUT; 2596 /* ReleaseSRB(pDCB, pSRB); */ 2597 psrb->pNextSRB = pACB->pFreeSRB; 2598 pACB->pFreeSRB = psrb; 2599 xpt_done(pccb); 2600 psrb = psrb2; 2601 } 2602 pdcb->GoingSRBCnt = 0;; 2603 pdcb->pGoingSRB = NULL; 2604 pdcb->TagMask = 0; 2605 pdcb = pdcb->pNextDCB; 2606 } 2607 while (pdcb != pDCB); 2608} 2609 2610static void 2611trm_ResetSCSIBus(PACB pACB) 2612{ 2613 int intflag; 2614 2615 intflag = splcam(); 2616 pACB->ACBFlag |= RESET_DEV; 2617 2618 trm_reg_write16(DO_RSTSCSI,TRMREG_SCSI_CONTROL); 2619 while (!(trm_reg_read16(TRMREG_SCSI_INTSTATUS) & INT_SCSIRESET)); 2620 splx(intflag); 2621 return; 2622} 2623 2624static void 2625trm_ScsiRstDetect(PACB pACB) 2626{ 2627 int intflag; 2628 u_long wlval; 2629 2630 TRM_DPRINTF("trm_ScsiRstDetect \n"); 2631 wlval = 1000; 2632 while (--wlval) 2633 DELAY(1000); 2634 intflag = splcam(); 2635 trm_reg_write8(STOPDMAXFER,TRMREG_DMA_CONTROL); 2636 2637 trm_reg_write16(DO_CLRFIFO,TRMREG_SCSI_CONTROL); 2638 2639 if (pACB->ACBFlag & RESET_DEV) 2640 pACB->ACBFlag |= RESET_DONE; 2641 else { 2642 pACB->ACBFlag |= RESET_DETECT; 2643 trm_ResetDevParam(pACB); 2644 /* trm_DoingSRB_Done(pACB); ???? */ 2645 trm_RecoverSRB(pACB); 2646 pACB->pActiveDCB = NULL; 2647 pACB->ACBFlag = 0; 2648 trm_DoWaitingSRB(pACB); 2649 } 2650 splx(intflag); 2651 return; 2652} 2653 2654static void 2655trm_RequestSense(PACB pACB, PDCB pDCB, PSRB pSRB) 2656{ 2657 union ccb *pccb; 2658 struct ccb_scsiio *pcsio; 2659 2660 pccb = pSRB->pccb; 2661 pcsio = &pccb->csio; 2662 2663 pSRB->SRBFlag |= AUTO_REQSENSE; 2664 pSRB->Segment0[0] = *((u_long *) &(pSRB->CmdBlock[0])); 2665 pSRB->Segment0[1] = *((u_long *) &(pSRB->CmdBlock[4])); 2666 pSRB->Segment1[0] = (u_long) ((pSRB->ScsiCmdLen << 8) + 2667 pSRB->SRBSGCount); 2668 pSRB->Segment1[1] = pSRB->SRBTotalXferLength; /* ?????????? */ 2669 2670 /* $$$$$$ Status of initiator/target $$$$$$$$ */ 2671 pSRB->AdaptStatus = 0; 2672 pSRB->TargetStatus = 0; 2673 /* $$$$$$ Status of initiator/target $$$$$$$$ */ 2674 2675 pSRB->SRBTotalXferLength = sizeof(pcsio->sense_data); 2676 pSRB->SgSenseTemp.address = pSRB->SegmentX[0].address; 2677 pSRB->SgSenseTemp.length = pSRB->SegmentX[0].length; 2678 pSRB->SegmentX[0].address = (u_long) vtophys(&pcsio->sense_data); 2679 pSRB->SegmentX[0].length = (u_long) pcsio->sense_len; 2680 pSRB->SRBSGListPointer = &pSRB->SegmentX[0]; 2681 pSRB->SRBSGCount = 1; 2682 pSRB->SRBSGIndex = 0; 2683 2684 *((u_long *) &(pSRB->CmdBlock[0])) = 0x00000003; 2685 pSRB->CmdBlock[1] = pDCB->IdentifyMsg << 5; 2686 *((u_int16_t *) &(pSRB->CmdBlock[4])) = pcsio->sense_len; 2687 pSRB->ScsiCmdLen = 6; 2688 2689 if (trm_StartSCSI(pACB, pDCB, pSRB)) 2690 /* 2691 * If trm_StartSCSI return 1 : 2692 * current interrupt status is interrupt disreenable 2693 * It's said that SCSI processor has more one SRB need to do 2694 */ 2695 trm_RewaitSRB(pDCB, pSRB); 2696} 2697 2698static void 2699trm_EnableMsgOutAbort2(PACB pACB, PSRB pSRB) 2700{ 2701 2702 pSRB->MsgCnt = 1; 2703 trm_reg_write16(DO_SETATN, TRMREG_SCSI_CONTROL); 2704} 2705 2706static void 2707trm_EnableMsgOutAbort1(PACB pACB, PSRB pSRB) 2708{ 2709 2710 pSRB->MsgOutBuf[0] = MSG_ABORT; 2711 trm_EnableMsgOutAbort2(pACB, pSRB); 2712} 2713 2714static void 2715trm_initDCB(PACB pACB, PDCB pDCB, u_int16_t unit,u_int32_t i,u_int32_t j) 2716{ 2717 PNVRAMTYPE pEEpromBuf; 2718 u_int8_t bval,PeriodIndex; 2719 u_int target_id,target_lun; 2720 PDCB pTempDCB; 2721 int intflag; 2722 2723 target_id = i; 2724 target_lun = j; 2725 2726 intflag = splcam(); 2727 if (pACB->pLinkDCB == 0) { 2728 pACB->pLinkDCB = pDCB; 2729 /* 2730 * RunRobin impersonate the role 2731 * that let each device had good proportion 2732 * about SCSI command proceeding 2733 */ 2734 pACB->pDCBRunRobin = pDCB; 2735 pDCB->pNextDCB = pDCB; 2736 } else { 2737 pTempDCB=pACB->pLinkDCB; 2738 /* search the last nod of DCB link */ 2739 while (pTempDCB->pNextDCB != pACB->pLinkDCB) 2740 pTempDCB = pTempDCB->pNextDCB; 2741 /* connect current DCB with last DCB tail */ 2742 pTempDCB->pNextDCB = pDCB; 2743 /* connect current DCB tail to this DCB Q head */ 2744 pDCB->pNextDCB=pACB->pLinkDCB; 2745 } 2746 splx(intflag); 2747 2748 pACB->DeviceCnt++; 2749 pDCB->pDCBACB = pACB; 2750 pDCB->TargetID = target_id; 2751 pDCB->TargetLUN = target_lun; 2752 pDCB->pWaitingSRB = NULL; 2753 pDCB->pGoingSRB = NULL; 2754 pDCB->GoingSRBCnt = 0; 2755 pDCB->pActiveSRB = NULL; 2756 pDCB->TagMask = 0; 2757 pDCB->MaxCommand = 1; 2758 pDCB->DCBFlag = 0; 2759 /* $$$$$$$ */ 2760 pEEpromBuf = &trm_eepromBuf[unit]; 2761 pDCB->DevMode = pEEpromBuf->NvramTarget[target_id].NvmTarCfg0; 2762 pDCB->AdpMode = pEEpromBuf->NvramChannelCfg; 2763 /* $$$$$$$ */ 2764 /* 2765 * disconnect enable ? 2766 */ 2767 if (pDCB->DevMode & NTC_DO_DISCONNECT) { 2768 bval = 0xC0; 2769 pDCB->tinfo.disc_tag |= TRM_USR_DISCENB ; 2770 } else { 2771 bval = 0x80; 2772 pDCB->tinfo.disc_tag &= ~(TRM_USR_DISCENB); 2773 } 2774 bval |= target_lun; 2775 pDCB->IdentifyMsg = bval; 2776 /* $$$$$$$ */ 2777 /* 2778 * tag Qing enable ? 2779 */ 2780 if (pDCB->DevMode & TAG_QUEUING_) { 2781 pDCB->tinfo.disc_tag |= TRM_USR_TAGENB ; 2782 } else 2783 pDCB->tinfo.disc_tag &= ~(TRM_USR_TAGENB); 2784 /* $$$$$$$ */ 2785 /* 2786 * wide nego ,sync nego enable ? 2787 */ 2788 pDCB->SyncPeriod = 0; 2789 pDCB->SyncOffset = 0; 2790 PeriodIndex = pEEpromBuf->NvramTarget[target_id].NvmTarPeriod & 0x07; 2791 pDCB->MaxNegoPeriod = dc395x_trm_clock_period[ PeriodIndex ] ; 2792 pDCB->SyncMode = 0; 2793 if ((pDCB->DevMode & NTC_DO_WIDE_NEGO) && 2794 (pACB->Config & HCC_WIDE_CARD)) 2795 pDCB->SyncMode |= WIDE_NEGO_ENABLE; 2796 /* enable wide nego */ 2797 if (pDCB->DevMode & NTC_DO_SYNC_NEGO) 2798 pDCB->SyncMode |= SYNC_NEGO_ENABLE; 2799 /* enable sync nego */ 2800 /* $$$$$$$ */ 2801 /* 2802 * Fill in tinfo structure. 2803 */ 2804 pDCB->tinfo.user.period = pDCB->MaxNegoPeriod; 2805 pDCB->tinfo.user.offset = (pDCB->SyncMode & SYNC_NEGO_ENABLE) ? 15 : 0; 2806 pDCB->tinfo.user.width = (pDCB->SyncMode & WIDE_NEGO_ENABLE) ? 2807 MSG_EXT_WDTR_BUS_16_BIT : MSG_EXT_WDTR_BUS_8_BIT; 2808 2809 pDCB->tinfo.current.period = 0; 2810 pDCB->tinfo.current.offset = 0; 2811 pDCB->tinfo.current.width = MSG_EXT_WDTR_BUS_8_BIT; 2812} 2813 2814static void 2815trm_initSRB(PSRB psrb) 2816{ 2817 2818 psrb->PhysSRB = vtophys(psrb); 2819} 2820 2821static void 2822trm_linkSRB(PACB pACB) 2823{ 2824 u_int16_t i; 2825 2826 for (i = 0; i < MAX_SRB_CNT; i++) { 2827 if (i != MAX_SRB_CNT - 1) 2828 /* 2829 * link all SRB 2830 */ 2831 pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1]; 2832 else 2833 /* 2834 * load NULL to NextSRB of the last SRB 2835 */ 2836 pACB->SRB_array[i].pNextSRB = NULL; 2837 /* 2838 * convert and save physical address of SRB to pSRB->PhysSRB 2839 */ 2840 trm_initSRB((PSRB) &pACB->SRB_array[i]); 2841 } 2842} 2843 2844 2845static void 2846trm_initACB(PACB pACB, u_int16_t unit) 2847{ 2848 PNVRAMTYPE pEEpromBuf; 2849 u_int16_t i,j; 2850 2851 pEEpromBuf = &trm_eepromBuf[unit]; 2852 pACB->max_id = 15; 2853 2854 if (pEEpromBuf->NvramChannelCfg & NAC_SCANLUN) 2855 pACB->max_lun = 7; 2856 else 2857 pACB->max_lun = 0; 2858 2859 TRM_DPRINTF("trm: pACB->max_id= %d pACB->max_lun= %d \n", 2860 pACB->max_id, pACB->max_lun); 2861 2862 pACB->pLinkDCB = NULL; 2863 pACB->pDCBRunRobin = NULL; 2864 pACB->pActiveDCB = NULL; 2865 pACB->pFreeSRB = pACB->SRB_array; 2866 pACB->AdapterUnit = unit; 2867 pACB->AdaptSCSIID = pEEpromBuf->NvramScsiId; 2868 pACB->AdaptSCSILUN = 0; 2869 pACB->DeviceCnt = 0; 2870 pACB->TagMaxNum = 2 << pEEpromBuf->NvramMaxTag ; 2871 pACB->ACBFlag = 0; 2872 /* 2873 * link all device's SRB Q of this adapter 2874 */ 2875 trm_linkSRB(pACB); 2876 /* 2877 * temp SRB for Q tag used or abord command used 2878 */ 2879 pACB->pTmpSRB = &pACB->TmpSRB; 2880 /* 2881 * convert and save physical address of SRB to pSRB->PhysSRB 2882 */ 2883 trm_initSRB(pACB->pTmpSRB); 2884 /* allocate DCB array for scan device */ 2885 for (i = 0; i < (pACB->max_id +1); i++) { 2886 if (pACB->AdaptSCSIID != i) { 2887 for (j = 0; j < (pACB->max_lun +1); j++) { 2888 pACB->scan_devices[i][j] = 1; 2889 pACB->pDCB[i][j]= (PDCB) malloc ( 2890 sizeof (struct _DCB), M_DEVBUF, 0); 2891 trm_initDCB(pACB, 2892 pACB->pDCB[i][j], unit, i, j); 2893 TRM_DPRINTF("pDCB= %8x \n", 2894 (u_int)pACB->pDCB[i][j]); 2895 } 2896 } 2897 } 2898 TRM_DPRINTF("sizeof(struct _DCB)= %8x \n",sizeof(struct _DCB)); 2899 TRM_DPRINTF("sizeof(struct _ACB)= %8x \n",sizeof(struct _ACB)); 2900 TRM_DPRINTF("sizeof(struct _SRB)= %8x \n",sizeof(struct _SRB)); 2901} 2902 2903static void 2904TRM_write_all(PNVRAMTYPE pEEpromBuf,PACB pACB) 2905{ 2906 u_int8_t *bpEeprom = (u_int8_t *) pEEpromBuf; 2907 u_int8_t bAddr; 2908 2909 /* Enable SEEPROM */ 2910 trm_reg_write8((trm_reg_read8(TRMREG_GEN_CONTROL) | EN_EEPROM), 2911 TRMREG_GEN_CONTROL); 2912 /* 2913 * Write enable 2914 */ 2915 TRM_write_cmd(pACB, 0x04, 0xFF); 2916 trm_reg_write8(0, TRMREG_GEN_NVRAM); 2917 TRM_wait_30us(pACB); 2918 for (bAddr = 0; bAddr < 128; bAddr++, bpEeprom++) { 2919 TRM_set_data(pACB, bAddr, *bpEeprom); 2920 } 2921 /* 2922 * Write disable 2923 */ 2924 TRM_write_cmd(pACB, 0x04, 0x00); 2925 trm_reg_write8(0 , TRMREG_GEN_NVRAM); 2926 TRM_wait_30us(pACB); 2927 /* Disable SEEPROM */ 2928 trm_reg_write8((trm_reg_read8(TRMREG_GEN_CONTROL) & ~EN_EEPROM), 2929 TRMREG_GEN_CONTROL); 2930 return; 2931} 2932 2933static void 2934TRM_set_data(PACB pACB, u_int8_t bAddr, u_int8_t bData) 2935{ 2936 int i; 2937 u_int8_t bSendData; 2938 /* 2939 * Send write command & address 2940 */ 2941 2942 TRM_write_cmd(pACB, 0x05, bAddr); 2943 /* 2944 * Write data 2945 */ 2946 for (i = 0; i < 8; i++, bData <<= 1) { 2947 bSendData = NVR_SELECT; 2948 if (bData & 0x80) 2949 /* Start from bit 7 */ 2950 bSendData |= NVR_BITOUT; 2951 trm_reg_write8(bSendData , TRMREG_GEN_NVRAM); 2952 TRM_wait_30us(pACB); 2953 trm_reg_write8((bSendData | NVR_CLOCK), TRMREG_GEN_NVRAM); 2954 TRM_wait_30us(pACB); 2955 } 2956 trm_reg_write8(NVR_SELECT , TRMREG_GEN_NVRAM); 2957 TRM_wait_30us(pACB); 2958 /* 2959 * Disable chip select 2960 */ 2961 trm_reg_write8(0 , TRMREG_GEN_NVRAM); 2962 TRM_wait_30us(pACB); 2963 trm_reg_write8(NVR_SELECT ,TRMREG_GEN_NVRAM); 2964 TRM_wait_30us(pACB); 2965 /* 2966 * Wait for write ready 2967 */ 2968 while (1) { 2969 trm_reg_write8((NVR_SELECT | NVR_CLOCK), TRMREG_GEN_NVRAM); 2970 TRM_wait_30us(pACB); 2971 trm_reg_write8(NVR_SELECT, TRMREG_GEN_NVRAM); 2972 TRM_wait_30us(pACB); 2973 if (trm_reg_read8(TRMREG_GEN_NVRAM) & NVR_BITIN) { 2974 break; 2975 } 2976 } 2977 /* 2978 * Disable chip select 2979 */ 2980 trm_reg_write8(0, TRMREG_GEN_NVRAM); 2981 return; 2982} 2983 2984static void 2985TRM_read_all(PNVRAMTYPE pEEpromBuf, PACB pACB) 2986{ 2987 u_int8_t *bpEeprom = (u_int8_t*) pEEpromBuf; 2988 u_int8_t bAddr; 2989 2990 /* 2991 * Enable SEEPROM 2992 */ 2993 trm_reg_write8((trm_reg_read8(TRMREG_GEN_CONTROL) | EN_EEPROM), 2994 TRMREG_GEN_CONTROL); 2995 for (bAddr = 0; bAddr < 128; bAddr++, bpEeprom++) 2996 *bpEeprom = TRM_get_data(pACB, bAddr); 2997 /* 2998 * Disable SEEPROM 2999 */ 3000 trm_reg_write8((trm_reg_read8(TRMREG_GEN_CONTROL) & ~EN_EEPROM), 3001 TRMREG_GEN_CONTROL); 3002 return; 3003} 3004 3005static u_int8_t 3006TRM_get_data(PACB pACB, u_int8_t bAddr) 3007{ 3008 int i; 3009 u_int8_t bReadData, bData = 0; 3010 /* 3011 * Send read command & address 3012 */ 3013 3014 TRM_write_cmd(pACB, 0x06, bAddr); 3015 3016 for (i = 0; i < 8; i++) { 3017 /* 3018 * Read data 3019 */ 3020 trm_reg_write8((NVR_SELECT | NVR_CLOCK) , TRMREG_GEN_NVRAM); 3021 TRM_wait_30us(pACB); 3022 trm_reg_write8(NVR_SELECT , TRMREG_GEN_NVRAM); 3023 /* 3024 * Get data bit while falling edge 3025 */ 3026 bReadData = trm_reg_read8(TRMREG_GEN_NVRAM); 3027 bData <<= 1; 3028 if (bReadData & NVR_BITIN) { 3029 bData |= 1; 3030 } 3031 TRM_wait_30us(pACB); 3032 } 3033 /* 3034 * Disable chip select 3035 */ 3036 trm_reg_write8(0, TRMREG_GEN_NVRAM); 3037 return (bData); 3038} 3039 3040static void 3041TRM_wait_30us(PACB pACB) 3042{ 3043 3044 /* ScsiPortStallExecution(30); wait 30 us */ 3045 trm_reg_write8(5, TRMREG_GEN_TIMER); 3046 while (!(trm_reg_read8(TRMREG_GEN_STATUS) & GTIMEOUT)); 3047 return; 3048} 3049 3050static void 3051TRM_write_cmd(PACB pACB, u_int8_t bCmd, u_int8_t bAddr) 3052{ 3053 int i; 3054 u_int8_t bSendData; 3055 3056 for (i = 0; i < 3; i++, bCmd <<= 1) { 3057 /* 3058 * Program SB+OP code 3059 */ 3060 bSendData = NVR_SELECT; 3061 if (bCmd & 0x04) 3062 bSendData |= NVR_BITOUT; 3063 /* start from bit 2 */ 3064 trm_reg_write8(bSendData, TRMREG_GEN_NVRAM); 3065 TRM_wait_30us(pACB); 3066 trm_reg_write8((bSendData | NVR_CLOCK), TRMREG_GEN_NVRAM); 3067 TRM_wait_30us(pACB); 3068 } 3069 for (i = 0; i < 7; i++, bAddr <<= 1) { 3070 /* 3071 * Program address 3072 */ 3073 bSendData = NVR_SELECT; 3074 if (bAddr & 0x40) 3075 /* Start from bit 6 */ 3076 bSendData |= NVR_BITOUT; 3077 trm_reg_write8(bSendData , TRMREG_GEN_NVRAM); 3078 TRM_wait_30us(pACB); 3079 trm_reg_write8((bSendData | NVR_CLOCK), TRMREG_GEN_NVRAM); 3080 TRM_wait_30us(pACB); 3081 } 3082 trm_reg_write8(NVR_SELECT, TRMREG_GEN_NVRAM); 3083 TRM_wait_30us(pACB); 3084} 3085 3086static void 3087trm_check_eeprom(PNVRAMTYPE pEEpromBuf, PACB pACB) 3088{ 3089 u_int16_t *wpEeprom = (u_int16_t *) pEEpromBuf; 3090 u_int16_t wAddr, wCheckSum; 3091 u_long dAddr, *dpEeprom; 3092 3093 TRM_read_all(pEEpromBuf,pACB); 3094 wCheckSum = 0; 3095 for (wAddr = 0, wpEeprom = (u_int16_t *) pEEpromBuf; 3096 wAddr < 64; wAddr++, wpEeprom++) { 3097 wCheckSum += *wpEeprom; 3098 } 3099 if (wCheckSum != 0x1234) { 3100 /* 3101 * Checksum error, load default 3102 */ 3103 pEEpromBuf->NvramSubVendorID[0] = (u_int8_t) PCI_Vendor_ID_TEKRAM; 3104 pEEpromBuf->NvramSubVendorID[1] = 3105 (u_int8_t) (PCI_Vendor_ID_TEKRAM >> 8); 3106 pEEpromBuf->NvramSubSysID[0] = (u_int8_t) PCI_Device_ID_TRM_S1040; 3107 pEEpromBuf->NvramSubSysID[1] = 3108 (u_int8_t) (PCI_Device_ID_TRM_S1040 >> 8); 3109 pEEpromBuf->NvramSubClass = 0x00; 3110 pEEpromBuf->NvramVendorID[0] = (u_int8_t) PCI_Vendor_ID_TEKRAM; 3111 pEEpromBuf->NvramVendorID[1] = 3112 (u_int8_t) (PCI_Vendor_ID_TEKRAM >> 8); 3113 pEEpromBuf->NvramDeviceID[0] = (u_int8_t) PCI_Device_ID_TRM_S1040; 3114 pEEpromBuf->NvramDeviceID[1] = 3115 (u_int8_t) (PCI_Device_ID_TRM_S1040 >> 8); 3116 pEEpromBuf->NvramReserved = 0x00; 3117 3118 for (dAddr = 0, dpEeprom = (u_long *) pEEpromBuf->NvramTarget; 3119 dAddr < 16; dAddr++, dpEeprom++) { 3120 *dpEeprom = 0x00000077; 3121 /* NvmTarCfg3,NvmTarCfg2,NvmTarPeriod,NvmTarCfg0 */ 3122 } 3123 3124 *dpEeprom++ = 0x04000F07; 3125 /* NvramMaxTag,NvramDelayTime,NvramChannelCfg,NvramScsiId */ 3126 *dpEeprom++ = 0x00000015; 3127 /* NvramReserved1,NvramBootLun,NvramBootTarget,NvramReserved0 */ 3128 for (dAddr = 0; dAddr < 12; dAddr++, dpEeprom++) 3129 *dpEeprom = 0x00; 3130 pEEpromBuf->NvramCheckSum = 0x00; 3131 for (wAddr = 0, wCheckSum = 0, wpEeprom = (u_int16_t *) pEEpromBuf; 3132 wAddr < 63; wAddr++, wpEeprom++) 3133 wCheckSum += *wpEeprom; 3134 *wpEeprom = 0x1234 - wCheckSum; 3135 TRM_write_all(pEEpromBuf,pACB); 3136 } 3137 return; 3138} 3139static int 3140trm_initAdapter(PACB pACB, u_int16_t unit, device_t pci_config_id) 3141{ 3142 PNVRAMTYPE pEEpromBuf; 3143 u_int16_t wval; 3144 u_int8_t bval; 3145 3146 pEEpromBuf = &trm_eepromBuf[unit]; 3147 3148 /* 250ms selection timeout */ 3149 trm_reg_write8(SEL_TIMEOUT, TRMREG_SCSI_TIMEOUT); 3150 /* Mask all the interrupt */ 3151 trm_reg_write8(0x00, TRMREG_DMA_INTEN); 3152 trm_reg_write8(0x00, TRMREG_SCSI_INTEN); 3153 /* Reset SCSI module */ 3154 trm_reg_write16(DO_RSTMODULE, TRMREG_SCSI_CONTROL); 3155 /* program configuration 0 */ 3156 pACB->Config = HCC_AUTOTERM | HCC_PARITY; 3157 if (trm_reg_read8(TRMREG_GEN_STATUS) & WIDESCSI) 3158 pACB->Config |= HCC_WIDE_CARD; 3159 if (pEEpromBuf->NvramChannelCfg & NAC_POWERON_SCSI_RESET) 3160 pACB->Config |= HCC_SCSI_RESET; 3161 if (pACB->Config & HCC_PARITY) 3162 bval = PHASELATCH | INITIATOR | BLOCKRST | PARITYCHECK; 3163 else 3164 bval = PHASELATCH | INITIATOR | BLOCKRST ; 3165 trm_reg_write8(bval,TRMREG_SCSI_CONFIG0); 3166 /* program configuration 1 */ 3167 trm_reg_write8(0x13, TRMREG_SCSI_CONFIG1); 3168 /* program Host ID */ 3169 bval = pEEpromBuf->NvramScsiId; 3170 trm_reg_write8(bval, TRMREG_SCSI_HOSTID); 3171 /* set ansynchronous transfer */ 3172 trm_reg_write8(0x00, TRMREG_SCSI_OFFSET); 3173 /* Trun LED control off*/ 3174 wval = trm_reg_read16(TRMREG_GEN_CONTROL) & 0x7F; 3175 trm_reg_write16(wval, TRMREG_GEN_CONTROL); 3176 /* DMA config */ 3177 wval = trm_reg_read16(TRMREG_DMA_CONFIG) | DMA_ENHANCE; 3178 trm_reg_write16(wval, TRMREG_DMA_CONFIG); 3179 /* Clear pending interrupt status */ 3180 trm_reg_read8(TRMREG_SCSI_INTSTATUS); 3181 /* Enable SCSI interrupt */ 3182 trm_reg_write8(0x7F, TRMREG_SCSI_INTEN); 3183 trm_reg_write8(EN_SCSIINTR, TRMREG_DMA_INTEN); 3184 return (0); 3185} 3186 3187static PACB 3188trm_init(u_int16_t unit, device_t pci_config_id) 3189{ 3190 PACB pACB; 3191 int rid = PCIR_MAPS; 3192 3193 pACB = (PACB) device_get_softc(pci_config_id); 3194 if (!pACB) { 3195 printf("trm%d: cannot allocate ACB !\n", unit); 3196 return (NULL); 3197 } 3198 bzero (pACB, sizeof (struct _ACB)); 3199 pACB->iores = bus_alloc_resource(pci_config_id, SYS_RES_IOPORT, 3200 &rid, 0, ~0, 1, RF_ACTIVE); 3201 if (pACB->iores == NULL) { 3202 printf("trm_init: bus_alloc_resource failed!\n"); 3203 return (NULL); 3204 } 3205 pACB->tag = rman_get_bustag(pACB->iores); 3206 pACB->bsh = rman_get_bushandle(pACB->iores); 3207 if (bus_dma_tag_create(/*parent_dmat*/ NULL, 3208 /*alignment*/ 1, 3209 /*boundary*/ 0, 3210 /*lowaddr*/ BUS_SPACE_MAXADDR_32BIT, 3211 /*highaddr*/ BUS_SPACE_MAXADDR, 3212 /*filter*/ NULL, 3213 /*filterarg*/ NULL, 3214 /*maxsize*/ MAXBSIZE, 3215 /*nsegments*/ TRM_NSEG, 3216 /*maxsegsz*/ TRM_MAXTRANSFER_SIZE, 3217 /*flags*/ BUS_DMA_ALLOCNOW, 3218 &pACB->buffer_dmat) != 0) 3219 goto bad; 3220 trm_check_eeprom(&trm_eepromBuf[unit],pACB); 3221 trm_initACB(pACB, unit); 3222 if (trm_initAdapter(pACB, unit, pci_config_id)) { 3223 printf("trm_initAdapter: initial ERROR\n"); 3224 goto bad; 3225 } 3226 return (pACB); 3227bad: 3228 if (pACB->iores) 3229 bus_release_resource(pci_config_id, SYS_RES_IOPORT, PCIR_MAPS, 3230 pACB->iores); 3231 if (pACB->buffer_dmat) 3232 bus_dma_tag_destroy(pACB->buffer_dmat); 3233 return (NULL); 3234} 3235 3236static int 3237trm_attach(device_t pci_config_id) 3238{ 3239 struct cam_devq *device_Q; 3240 u_long device_id; 3241 PACB pACB = 0; 3242 int rid = 0; 3243 int unit = device_get_unit(pci_config_id); 3244 3245 device_id = pci_get_devid(pci_config_id); 3246 /* 3247 * These cards do not allow memory mapped accesses 3248 */ 3249 if (device_id == PCI_DEVICEID_TRMS1040) { 3250 if ((pACB=trm_init((u_int16_t) unit, 3251 pci_config_id)) == NULL) { 3252 printf("trm%d: trm_init error!\n",unit); 3253 return (ENXIO); 3254 } 3255 } else 3256 return (ENXIO); 3257 /* After setting up the adapter, map our interrupt */ 3258 /* 3259 * Now let the CAM generic SCSI layer find the SCSI devices on the bus 3260 * start queue to reset to the idle loop. 3261 * Create device queue of SIM(s) 3262 * (MAX_START_JOB - 1) : max_sim_transactions 3263 */ 3264 pACB->irq = bus_alloc_resource(pci_config_id, SYS_RES_IRQ, &rid, 0, 3265 ~0, 1, RF_SHAREABLE | RF_ACTIVE); 3266 if (pACB->irq == NULL || 3267 bus_setup_intr(pci_config_id, pACB->irq, 3268 INTR_TYPE_CAM, trm_Interrupt, pACB, &pACB->ih)) { 3269 printf("trm%d: register Interrupt handler error!\n", unit); 3270 goto bad; 3271 } 3272 device_Q = cam_simq_alloc(MAX_START_JOB); 3273 if (device_Q == NULL){ 3274 printf("trm%d: device_Q == NULL !\n",unit); 3275 goto bad; 3276 } 3277 /* 3278 * Now tell the generic SCSI layer 3279 * about our bus. 3280 * If this is the xpt layer creating a sim, then it's OK 3281 * to wait for an allocation. 3282 * XXX Should we pass in a flag to indicate that wait is OK? 3283 * 3284 * SIM allocation 3285 * 3286 * SCSI Interface Modules 3287 * The sim driver creates a sim for each controller. The sim device 3288 * queue is separately created in order to allow resource sharing betwee 3289 * sims. For instance, a driver may create one sim for each channel of 3290 * a multi-channel controller and use the same queue for each channel. 3291 * In this way, the queue resources are shared across all the channels 3292 * of the multi-channel controller. 3293 * trm_action : sim_action_func 3294 * trm_poll : sim_poll_func 3295 * "trm" : sim_name ,if sim_name = "xpt" ..M_DEVBUF,0 3296 * pACB : *softc if sim_name <> "xpt" ..M_DEVBUF,M_NOWAIT 3297 * pACB->unit : unit 3298 * 1 : max_dev_transactions 3299 * MAX_TAGS : max_tagged_dev_transactions 3300 * 3301 * *******Construct our first channel SIM entry 3302 */ 3303 pACB->psim = cam_sim_alloc(trm_action, 3304 trm_poll, 3305 "trm", 3306 pACB, 3307 unit, 3308 1, 3309 MAX_TAGS_CMD_QUEUE, 3310 device_Q); 3311 if (pACB->psim == NULL) { 3312 printf("trm%d: SIM allocate fault !\n",unit); 3313 cam_simq_free(device_Q); /* SIM allocate fault*/ 3314 goto bad; 3315 } 3316 if (xpt_bus_register(pACB->psim, 0) != CAM_SUCCESS) { 3317 printf("trm%d: xpt_bus_register fault !\n",unit); 3318 goto bad; 3319 } 3320 if (xpt_create_path(&pACB->ppath, 3321 NULL, 3322 cam_sim_path(pACB->psim), 3323 CAM_TARGET_WILDCARD, 3324 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 3325 printf("trm%d: xpt_create_path fault !\n",unit); 3326 xpt_bus_deregister(cam_sim_path(pACB->psim)); 3327 goto bad; 3328 /* 3329 * cam_sim_free(pACB->psim, TRUE); free_devq 3330 * pACB->psim = NULL; 3331 */ 3332 return (ENXIO); 3333 } 3334 return (0); 3335bad: 3336 if (pACB->iores) 3337 bus_release_resource(pci_config_id, SYS_RES_IOPORT, PCIR_MAPS, 3338 pACB->iores); 3339 if (pACB->buffer_dmat) 3340 bus_dma_tag_destroy(pACB->buffer_dmat); 3341 if (pACB->ih) 3342 bus_teardown_intr(pci_config_id, pACB->irq, pACB->ih); 3343 if (pACB->irq) 3344 bus_release_resource(pci_config_id, SYS_RES_IRQ, 0, pACB->irq); 3345 if (pACB->psim) 3346 cam_sim_free(pACB->psim, TRUE); 3347 3348 return (ENXIO); 3349 3350} 3351 3352/* 3353* pci_device 3354* trm_probe (device_t tag, pcidi_t type) 3355* 3356*/ 3357static int 3358trm_probe(device_t tag) 3359{ 3360 3361 if (pci_get_devid(tag) == PCI_DEVICEID_TRMS1040) { 3362 device_set_desc(tag, 3363 "Tekram DC395U/UW/F DC315/U Fast20 Wide SCSI Adapter"); 3364 return (0); 3365 } else 3366 return (ENXIO); 3367} 3368 3369static int 3370trm_detach(device_t dev) 3371{ 3372 PACB pACB = device_get_softc(dev); 3373 3374 bus_release_resource(dev, SYS_RES_IOPORT, PCIR_MAPS, pACB->iores); 3375 bus_dma_tag_destroy(pACB->buffer_dmat); 3376 bus_teardown_intr(dev, pACB->irq, pACB->ih); 3377 bus_release_resource(dev, SYS_RES_IRQ, 0, pACB->irq); 3378 xpt_async(AC_LOST_DEVICE, pACB->ppath, NULL); 3379 xpt_free_path(pACB->ppath); 3380 xpt_bus_deregister(cam_sim_path(pACB->psim)); 3381 cam_sim_free(pACB->psim, TRUE); 3382 return (0); 3383} 3384static device_method_t trm_methods[] = { 3385 /* Device interface */ 3386 DEVMETHOD(device_probe, trm_probe), 3387 DEVMETHOD(device_attach, trm_attach), 3388 DEVMETHOD(device_detach, trm_detach), 3389 { 0, 0 } 3390}; 3391 3392static driver_t trm_driver = { 3393 "trm", trm_methods, sizeof(struct _ACB) 3394}; 3395 3396static devclass_t trm_devclass; 3397DRIVER_MODULE(trm, pci, trm_driver, trm_devclass, 0, 0); 3398