adwlib.c revision 1.31
1 /* $NetBSD: adwlib.c,v 1.31 2003/11/02 11:07:44 wiz Exp $ */ 2 3 /* 4 * Low level routines for the Advanced Systems Inc. SCSI controllers chips 5 * 6 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * Author: Baldassare Dante Profeta <dante (at) mclink.it> 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 /* 40 * Ported from: 41 */ 42 /* 43 * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters 44 * 45 * Copyright (c) 1995-2000 Advanced System Products, Inc. 46 * All Rights Reserved. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that redistributions of source 50 * code retain the above copyright notice and this comment without 51 * modification. 52 */ 53 54 #include <sys/cdefs.h> 55 __KERNEL_RCSID(0, "$NetBSD: adwlib.c,v 1.31 2003/11/02 11:07:44 wiz Exp $"); 56 57 #include <sys/param.h> 58 #include <sys/systm.h> 59 #include <sys/malloc.h> 60 #include <sys/kernel.h> 61 #include <sys/queue.h> 62 #include <sys/device.h> 63 64 #include <machine/bus.h> 65 #include <machine/intr.h> 66 67 #include <dev/scsipi/scsi_all.h> 68 #include <dev/scsipi/scsipi_all.h> 69 #include <dev/scsipi/scsiconf.h> 70 71 #include <dev/pci/pcidevs.h> 72 73 #include <uvm/uvm_extern.h> 74 75 #include <dev/ic/adwlib.h> 76 #include <dev/ic/adwmcode.h> 77 #include <dev/ic/adw.h> 78 79 80 /* Static Functions */ 81 82 int AdwRamSelfTest __P((bus_space_tag_t, bus_space_handle_t, u_int8_t)); 83 int AdwLoadMCode __P((bus_space_tag_t, bus_space_handle_t, u_int16_t *, 84 u_int8_t)); 85 int AdwASC3550Cabling __P((bus_space_tag_t, bus_space_handle_t, ADW_DVC_CFG *)); 86 int AdwASC38C0800Cabling __P((bus_space_tag_t, bus_space_handle_t, 87 ADW_DVC_CFG *)); 88 int AdwASC38C1600Cabling __P((bus_space_tag_t, bus_space_handle_t, 89 ADW_DVC_CFG *)); 90 91 static u_int16_t AdwGetEEPROMConfig __P((bus_space_tag_t, bus_space_handle_t, 92 ADW_EEPROM *)); 93 static void AdwSetEEPROMConfig __P((bus_space_tag_t, bus_space_handle_t, 94 ADW_EEPROM *)); 95 static u_int16_t AdwReadEEPWord __P((bus_space_tag_t, bus_space_handle_t, int)); 96 static void AdwWaitEEPCmd __P((bus_space_tag_t, bus_space_handle_t)); 97 98 static void AdwInquiryHandling __P((ADW_SOFTC *, ADW_SCSI_REQ_Q *)); 99 100 static void AdwSleepMilliSecond __P((u_int32_t)); 101 static void AdwDelayMicroSecond __P((u_int32_t)); 102 103 104 /* 105 * EEPROM Configuration. 106 * 107 * All drivers should use this structure to set the default EEPROM 108 * configuration. The BIOS now uses this structure when it is built. 109 * Additional structure information can be found in adwlib.h where 110 * the structure is defined. 111 */ 112 const static ADW_EEPROM adw_3550_Default_EEPROM = { 113 ADW_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ 114 0x0000, /* 01 cfg_msw */ 115 0xFFFF, /* 02 disc_enable */ 116 0xFFFF, /* 03 wdtr_able */ 117 { 0xFFFF }, /* 04 sdtr_able */ 118 0xFFFF, /* 05 start_motor */ 119 0xFFFF, /* 06 tagqng_able */ 120 0xFFFF, /* 07 bios_scan */ 121 0, /* 08 scam_tolerant */ 122 7, /* 09 adapter_scsi_id */ 123 0, /* bios_boot_delay */ 124 3, /* 10 scsi_reset_delay */ 125 0, /* bios_id_lun */ 126 0, /* 11 termination */ 127 0, /* reserved1 */ 128 0xFFE7, /* 12 bios_ctrl */ 129 { 0xFFFF }, /* 13 ultra_able */ 130 { 0 }, /* 14 reserved2 */ 131 ADW_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ 132 ADW_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 133 0, /* 16 dvc_cntl */ 134 { 0 }, /* 17 bug_fix */ 135 { 0,0,0 }, /* 18-20 serial_number[3] */ 136 0, /* 21 check_sum */ 137 { /* 22-29 oem_name[16] */ 138 0,0,0,0,0,0,0,0, 139 0,0,0,0,0,0,0,0 140 }, 141 0, /* 30 dvc_err_code */ 142 0, /* 31 adv_err_code */ 143 0, /* 32 adv_err_addr */ 144 0, /* 33 saved_dvc_err_code */ 145 0, /* 34 saved_adv_err_code */ 146 0 /* 35 saved_adv_err_addr */ 147 }; 148 149 const static ADW_EEPROM adw_38C0800_Default_EEPROM = { 150 ADW_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ 151 0x0000, /* 01 cfg_msw */ 152 0xFFFF, /* 02 disc_enable */ 153 0xFFFF, /* 03 wdtr_able */ 154 { 0x4444 }, /* 04 sdtr_speed1 */ 155 0xFFFF, /* 05 start_motor */ 156 0xFFFF, /* 06 tagqng_able */ 157 0xFFFF, /* 07 bios_scan */ 158 0, /* 08 scam_tolerant */ 159 7, /* 09 adapter_scsi_id */ 160 0, /* bios_boot_delay */ 161 3, /* 10 scsi_reset_delay */ 162 0, /* bios_id_lun */ 163 0, /* 11 termination_se */ 164 0, /* termination_lvd */ 165 0xFFE7, /* 12 bios_ctrl */ 166 { 0x4444 }, /* 13 sdtr_speed2 */ 167 { 0x4444 }, /* 14 sdtr_speed3 */ 168 ADW_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ 169 ADW_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 170 0, /* 16 dvc_cntl */ 171 { 0x4444 }, /* 17 sdtr_speed4 */ 172 { 0,0,0 }, /* 18-20 serial_number[3] */ 173 0, /* 21 check_sum */ 174 { /* 22-29 oem_name[16] */ 175 0,0,0,0,0,0,0,0, 176 0,0,0,0,0,0,0,0 177 }, 178 0, /* 30 dvc_err_code */ 179 0, /* 31 adv_err_code */ 180 0, /* 32 adv_err_addr */ 181 0, /* 33 saved_dvc_err_code */ 182 0, /* 34 saved_adv_err_code */ 183 0, /* 35 saved_adv_err_addr */ 184 { /* 36-55 reserved1[16] */ 185 0,0,0,0,0,0,0,0,0,0, 186 0,0,0,0,0,0,0,0,0,0 187 }, 188 0, /* 56 cisptr_lsw */ 189 0, /* 57 cisprt_msw */ 190 PCI_VENDOR_ADVSYS, /* 58 subsysvid */ 191 PCI_PRODUCT_ADVSYS_U2W, /* 59 subsysid */ 192 { 0,0,0,0 } /* 60-63 reserved2[4] */ 193 }; 194 195 const static ADW_EEPROM adw_38C1600_Default_EEPROM = { 196 ADW_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ 197 0x0000, /* 01 cfg_msw */ 198 0xFFFF, /* 02 disc_enable */ 199 0xFFFF, /* 03 wdtr_able */ 200 { 0x5555 }, /* 04 sdtr_speed1 */ 201 0xFFFF, /* 05 start_motor */ 202 0xFFFF, /* 06 tagqng_able */ 203 0xFFFF, /* 07 bios_scan */ 204 0, /* 08 scam_tolerant */ 205 7, /* 09 adapter_scsi_id */ 206 0, /* bios_boot_delay */ 207 3, /* 10 scsi_reset_delay */ 208 0, /* bios_id_lun */ 209 0, /* 11 termination_se */ 210 0, /* termination_lvd */ 211 0xFFE7, /* 12 bios_ctrl */ 212 { 0x5555 }, /* 13 sdtr_speed2 */ 213 { 0x5555 }, /* 14 sdtr_speed3 */ 214 ADW_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ 215 ADW_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 216 0, /* 16 dvc_cntl */ 217 { 0x5555 }, /* 17 sdtr_speed4 */ 218 { 0,0,0 }, /* 18-20 serial_number[3] */ 219 0, /* 21 check_sum */ 220 { /* 22-29 oem_name[16] */ 221 0,0,0,0,0,0,0,0, 222 0,0,0,0,0,0,0,0 223 }, 224 0, /* 30 dvc_err_code */ 225 0, /* 31 adv_err_code */ 226 0, /* 32 adv_err_addr */ 227 0, /* 33 saved_dvc_err_code */ 228 0, /* 34 saved_adv_err_code */ 229 0, /* 35 saved_adv_err_addr */ 230 { /* 36-55 reserved1[16] */ 231 0,0,0,0,0,0,0,0,0,0, 232 0,0,0,0,0,0,0,0,0,0 233 }, 234 0, /* 56 cisptr_lsw */ 235 0, /* 57 cisprt_msw */ 236 PCI_VENDOR_ADVSYS, /* 58 subsysvid */ 237 PCI_PRODUCT_ADVSYS_U3W, /* 59 subsysid */ 238 { 0,0,0,0 } /* 60-63 reserved2[4] */ 239 }; 240 241 242 /* 243 * Read the board's EEPROM configuration. Set fields in ADW_SOFTC and 244 * ADW_DVC_CFG based on the EEPROM settings. The chip is stopped while 245 * all of this is done. 246 * 247 * For a non-fatal error return a warning code. If there are no warnings 248 * then 0 is returned. 249 * 250 * Note: Chip is stopped on entry. 251 */ 252 int 253 AdwInitFromEEPROM(sc) 254 ADW_SOFTC *sc; 255 { 256 bus_space_tag_t iot = sc->sc_iot; 257 bus_space_handle_t ioh = sc->sc_ioh; 258 ADW_EEPROM eep_config; 259 u_int16_t warn_code; 260 u_int16_t sdtr_speed = 0; 261 u_int8_t tid, termination; 262 int i, j; 263 264 265 warn_code = 0; 266 267 /* 268 * Read the board's EEPROM configuration. 269 * 270 * Set default values if a bad checksum is found. 271 * 272 * XXX - Don't handle big-endian access to EEPROM yet. 273 */ 274 if (AdwGetEEPROMConfig(iot, ioh, &eep_config) != eep_config.check_sum) { 275 warn_code |= ADW_WARN_EEPROM_CHKSUM; 276 277 /* 278 * Set EEPROM default values. 279 */ 280 switch(sc->chip_type) { 281 case ADW_CHIP_ASC3550: 282 eep_config = adw_3550_Default_EEPROM; 283 break; 284 case ADW_CHIP_ASC38C0800: 285 eep_config = adw_38C0800_Default_EEPROM; 286 break; 287 case ADW_CHIP_ASC38C1600: 288 eep_config = adw_38C1600_Default_EEPROM; 289 290 #if 0 291 XXX TODO!!! if (ASC_PCI_ID2FUNC(sc->cfg.pci_slot_info) != 0) { 292 #endif 293 if (sc->cfg.pci_slot_info != 0) { 294 u_int8_t lsw_msb; 295 296 lsw_msb = eep_config.cfg_lsw >> 8; 297 /* 298 * Set Function 1 EEPROM Word 0 MSB 299 * 300 * Clear the BIOS_ENABLE (bit 14) and 301 * INTAB (bit 11) EEPROM bits. 302 * 303 * Disable Bit 14 (BIOS_ENABLE) to fix 304 * SPARC Ultra 60 and old Mac system booting 305 * problem. The Expansion ROM must 306 * be disabled in Function 1 for these systems. 307 */ 308 lsw_msb &= ~(((ADW_EEPROM_BIOS_ENABLE | 309 ADW_EEPROM_INTAB) >> 8) & 0xFF); 310 /* 311 * Set the INTAB (bit 11) if the GPIO 0 input 312 * indicates the Function 1 interrupt line is 313 * wired to INTA. 314 * 315 * Set/Clear Bit 11 (INTAB) from 316 * the GPIO bit 0 input: 317 * 1 - Function 1 intr line wired to INT A. 318 * 0 - Function 1 intr line wired to INT B. 319 * 320 * Note: Adapter boards always have Function 0 321 * wired to INTA. 322 * Put all 5 GPIO bits in input mode and then 323 * read their input values. 324 */ 325 ADW_WRITE_BYTE_REGISTER(iot, ioh, 326 IOPB_GPIO_CNTL, 0); 327 if (ADW_READ_BYTE_REGISTER(iot, ioh, 328 IOPB_GPIO_DATA) & 0x01) { 329 /* 330 * Function 1 interrupt wired to INTA; 331 * Set EEPROM bit. 332 */ 333 lsw_msb |= (ADW_EEPROM_INTAB >> 8) 334 & 0xFF; 335 } 336 eep_config.cfg_lsw &= 0x00FF; 337 eep_config.cfg_lsw |= lsw_msb << 8; 338 } 339 break; 340 } 341 342 /* 343 * Assume the 6 byte board serial number that was read 344 * from EEPROM is correct even if the EEPROM checksum 345 * failed. 346 */ 347 for (i=2, j=1; i>=0; i--, j++) { 348 eep_config.serial_number[i] = 349 AdwReadEEPWord(iot, ioh, ASC_EEP_DVC_CFG_END - j); 350 } 351 352 AdwSetEEPROMConfig(iot, ioh, &eep_config); 353 } 354 /* 355 * Set sc and sc->cfg variables from the EEPROM configuration 356 * that was read. 357 * 358 * This is the mapping of EEPROM fields to Adw Library fields. 359 */ 360 sc->wdtr_able = eep_config.wdtr_able; 361 if (sc->chip_type == ADW_CHIP_ASC3550) { 362 sc->sdtr_able = eep_config.sdtr1.sdtr_able; 363 sc->ultra_able = eep_config.sdtr2.ultra_able; 364 } else { 365 sc->sdtr_speed1 = eep_config.sdtr1.sdtr_speed1; 366 sc->sdtr_speed2 = eep_config.sdtr2.sdtr_speed2; 367 sc->sdtr_speed3 = eep_config.sdtr3.sdtr_speed3; 368 sc->sdtr_speed4 = eep_config.sdtr4.sdtr_speed4; 369 } 370 sc->ppr_able = 0; 371 sc->tagqng_able = eep_config.tagqng_able; 372 sc->cfg.disc_enable = eep_config.disc_enable; 373 sc->max_host_qng = eep_config.max_host_qng; 374 sc->max_dvc_qng = eep_config.max_dvc_qng; 375 sc->chip_scsi_id = (eep_config.adapter_scsi_id & ADW_MAX_TID); 376 sc->start_motor = eep_config.start_motor; 377 sc->scsi_reset_wait = eep_config.scsi_reset_delay; 378 sc->bios_ctrl = eep_config.bios_ctrl; 379 sc->no_scam = eep_config.scam_tolerant; 380 sc->cfg.serial1 = eep_config.serial_number[0]; 381 sc->cfg.serial2 = eep_config.serial_number[1]; 382 sc->cfg.serial3 = eep_config.serial_number[2]; 383 384 if (sc->chip_type == ADW_CHIP_ASC38C0800 || 385 sc->chip_type == ADW_CHIP_ASC38C1600) { 386 sc->sdtr_able = 0; 387 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 388 if (tid == 0) { 389 sdtr_speed = sc->sdtr_speed1; 390 } else if (tid == 4) { 391 sdtr_speed = sc->sdtr_speed2; 392 } else if (tid == 8) { 393 sdtr_speed = sc->sdtr_speed3; 394 } else if (tid == 12) { 395 sdtr_speed = sc->sdtr_speed4; 396 } 397 if (sdtr_speed & ADW_MAX_TID) { 398 sc->sdtr_able |= (1 << tid); 399 } 400 sdtr_speed >>= 4; 401 } 402 } 403 404 /* 405 * Set the host maximum queuing (max. 253, min. 16) and the per device 406 * maximum queuing (max. 63, min. 4). 407 */ 408 if (eep_config.max_host_qng > ADW_DEF_MAX_HOST_QNG) { 409 eep_config.max_host_qng = ADW_DEF_MAX_HOST_QNG; 410 } else if (eep_config.max_host_qng < ADW_DEF_MIN_HOST_QNG) 411 { 412 /* If the value is zero, assume it is uninitialized. */ 413 if (eep_config.max_host_qng == 0) { 414 eep_config.max_host_qng = ADW_DEF_MAX_HOST_QNG; 415 } else { 416 eep_config.max_host_qng = ADW_DEF_MIN_HOST_QNG; 417 } 418 } 419 420 if (eep_config.max_dvc_qng > ADW_DEF_MAX_DVC_QNG) { 421 eep_config.max_dvc_qng = ADW_DEF_MAX_DVC_QNG; 422 } else if (eep_config.max_dvc_qng < ADW_DEF_MIN_DVC_QNG) { 423 /* If the value is zero, assume it is uninitialized. */ 424 if (eep_config.max_dvc_qng == 0) { 425 eep_config.max_dvc_qng = ADW_DEF_MAX_DVC_QNG; 426 } else { 427 eep_config.max_dvc_qng = ADW_DEF_MIN_DVC_QNG; 428 } 429 } 430 431 /* 432 * If 'max_dvc_qng' is greater than 'max_host_qng', then 433 * set 'max_dvc_qng' to 'max_host_qng'. 434 */ 435 if (eep_config.max_dvc_qng > eep_config.max_host_qng) { 436 eep_config.max_dvc_qng = eep_config.max_host_qng; 437 } 438 439 /* 440 * Set ADV_DVC_VAR 'max_host_qng' and ADV_DVC_VAR 'max_dvc_qng' 441 * values based on possibly adjusted EEPROM values. 442 */ 443 sc->max_host_qng = eep_config.max_host_qng; 444 sc->max_dvc_qng = eep_config.max_dvc_qng; 445 446 447 /* 448 * If the EEPROM 'termination' field is set to automatic (0), then set 449 * the ADV_DVC_CFG 'termination' field to automatic also. 450 * 451 * If the termination is specified with a non-zero 'termination' 452 * value check that a legal value is set and set the ADV_DVC_CFG 453 * 'termination' field appropriately. 454 */ 455 456 switch(sc->chip_type) { 457 case ADW_CHIP_ASC3550: 458 sc->cfg.termination = 0; /* auto termination */ 459 switch(eep_config.termination_se) { 460 case 3: 461 /* Enable manual control with low on / high on. */ 462 sc->cfg.termination |= ADW_TERM_CTL_L; 463 case 2: 464 /* Enable manual control with low off / high on. */ 465 sc->cfg.termination |= ADW_TERM_CTL_H; 466 case 1: 467 /* Enable manual control with low off / high off. */ 468 sc->cfg.termination |= ADW_TERM_CTL_SEL; 469 case 0: 470 break; 471 default: 472 warn_code |= ADW_WARN_EEPROM_TERMINATION; 473 } 474 break; 475 476 case ADW_CHIP_ASC38C0800: 477 case ADW_CHIP_ASC38C1600: 478 switch(eep_config.termination_se) { 479 case 0: 480 /* auto termination for SE */ 481 termination = 0; 482 break; 483 case 1: 484 /* Enable manual control with low off / high off. */ 485 termination = 0; 486 break; 487 case 2: 488 /* Enable manual control with low off / high on. */ 489 termination = ADW_TERM_SE_HI; 490 break; 491 case 3: 492 /* Enable manual control with low on / high on. */ 493 termination = ADW_TERM_SE; 494 break; 495 default: 496 /* 497 * The EEPROM 'termination_se' field contains a 498 * bad value. Use automatic termination instead. 499 */ 500 termination = 0; 501 warn_code |= ADW_WARN_EEPROM_TERMINATION; 502 } 503 504 switch(eep_config.termination_lvd) { 505 case 0: 506 /* auto termination for LVD */ 507 sc->cfg.termination = termination; 508 break; 509 case 1: 510 /* Enable manual control with low off / high off. */ 511 sc->cfg.termination = termination; 512 break; 513 case 2: 514 /* Enable manual control with low off / high on. */ 515 sc->cfg.termination = termination | ADW_TERM_LVD_HI; 516 break; 517 case 3: 518 /* Enable manual control with low on / high on. */ 519 sc->cfg.termination = termination | ADW_TERM_LVD; 520 break; 521 default: 522 /* 523 * The EEPROM 'termination_lvd' field contains a 524 * bad value. Use automatic termination instead. 525 */ 526 sc->cfg.termination = termination; 527 warn_code |= ADW_WARN_EEPROM_TERMINATION; 528 } 529 break; 530 } 531 532 return warn_code; 533 } 534 535 536 /* 537 * Initialize the ASC-3550/ASC-38C0800/ASC-38C1600. 538 * 539 * On failure return the error code. 540 */ 541 int 542 AdwInitDriver(sc) 543 ADW_SOFTC *sc; 544 { 545 bus_space_tag_t iot = sc->sc_iot; 546 bus_space_handle_t ioh = sc->sc_ioh; 547 u_int16_t error_code; 548 int word; 549 int i; 550 u_int16_t bios_mem[ADW_MC_BIOSLEN/2]; /* BIOS RISC Memory 551 0x40-0x8F. */ 552 u_int16_t wdtr_able = 0, sdtr_able, ppr_able, tagqng_able; 553 u_int8_t max_cmd[ADW_MAX_TID + 1]; 554 u_int8_t tid; 555 556 557 error_code = 0; 558 559 /* 560 * Save the RISC memory BIOS region before writing the microcode. 561 * The BIOS may already be loaded and using its RISC LRAM region 562 * so its region must be saved and restored. 563 * 564 * Note: This code makes the assumption, which is currently true, 565 * that a chip reset does not clear RISC LRAM. 566 */ 567 for (i = 0; i < ADW_MC_BIOSLEN/2; i++) { 568 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_BIOSMEM+(2*i), bios_mem[i]); 569 } 570 571 /* 572 * Save current per TID negotiated values. 573 */ 574 switch (sc->chip_type) { 575 case ADW_CHIP_ASC3550: 576 if (bios_mem[(ADW_MC_BIOS_SIGNATURE-ADW_MC_BIOSMEM)/2]==0x55AA){ 577 578 u_int16_t bios_version, major, minor; 579 580 bios_version = bios_mem[(ADW_MC_BIOS_VERSION - 581 ADW_MC_BIOSMEM) / 2]; 582 major = (bios_version >> 12) & 0xF; 583 minor = (bios_version >> 8) & 0xF; 584 if (major < 3 || (major == 3 && minor == 1)) { 585 /* 586 * BIOS 3.1 and earlier location of 587 * 'wdtr_able' variable. 588 */ 589 ADW_READ_WORD_LRAM(iot, ioh, 0x120, wdtr_able); 590 } else { 591 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, 592 wdtr_able); 593 } 594 } 595 break; 596 597 case ADW_CHIP_ASC38C1600: 598 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_PPR_ABLE, ppr_able); 599 /* FALLTHROUGH */ 600 case ADW_CHIP_ASC38C0800: 601 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, wdtr_able); 602 break; 603 } 604 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, sdtr_able); 605 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, tagqng_able); 606 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 607 ADW_READ_BYTE_LRAM(iot, ioh, ADW_MC_NUMBER_OF_MAX_CMD + tid, 608 max_cmd[tid]); 609 } 610 611 /* 612 * Perform a RAM Built-In Self Test 613 */ 614 if((error_code = AdwRamSelfTest(iot, ioh, sc->chip_type))) { 615 return error_code; 616 } 617 618 /* 619 * Load the Microcode 620 */ 621 ; 622 if((error_code = AdwLoadMCode(iot, ioh, bios_mem, sc->chip_type))) { 623 return error_code; 624 } 625 626 /* 627 * Read microcode version and date. 628 */ 629 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_VERSION_DATE, sc->cfg.mcode_date); 630 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_VERSION_NUM, sc->cfg.mcode_version); 631 632 /* 633 * If the PCI Configuration Command Register "Parity Error Response 634 * Control" Bit was clear (0), then set the microcode variable 635 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 636 * to ignore DMA parity errors. 637 */ 638 if (sc->cfg.control_flag & CONTROL_FLAG_IGNORE_PERR) { 639 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_CONTROL_FLAG, word); 640 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_CONTROL_FLAG, 641 word | CONTROL_FLAG_IGNORE_PERR); 642 } 643 644 switch (sc->chip_type) { 645 case ADW_CHIP_ASC3550: 646 /* 647 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits sets a 648 * FIFO threshold of 128 bytes. 649 * This register is only accessible to the host. 650 */ 651 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_DMA_CFG0, 652 START_CTL_EMFU | READ_CMD_MRM); 653 break; 654 655 case ADW_CHIP_ASC38C0800: 656 /* 657 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register. 658 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current 659 * cable detection and then we are able to read C_DET[3:0]. 660 * 661 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1 662 * Microcode Default Value' section below. 663 */ 664 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1, 665 ADW_READ_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1) 666 | ADW_DIS_TERM_DRV); 667 668 /* 669 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and 670 * START_CTL_TH [3:2] bits for the default FIFO threshold. 671 * 672 * Note: ASC-38C0800 FIFO threshold has been changed to 673 * 256 bytes. 674 * 675 * For DMA Errata #4 set the BC_THRESH_ENB bit. 676 */ 677 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_DMA_CFG0, 678 BC_THRESH_ENB | FIFO_THRESH_80B 679 | START_CTL_TH | READ_CMD_MRM); 680 break; 681 682 case ADW_CHIP_ASC38C1600: 683 /* 684 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register. 685 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current 686 * cable detection and then we are able to read C_DET[3:0]. 687 * 688 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1 689 * Microcode Default Value' section below. 690 */ 691 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1, 692 ADW_READ_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1) 693 | ADW_DIS_TERM_DRV); 694 695 /* 696 * If the BIOS control flag AIPP (Asynchronous Information 697 * Phase Protection) disable bit is not set, then set the 698 * firmware 'control_flag' CONTROL_FLAG_ENABLE_AIPP bit to 699 * enable AIPP checking and encoding. 700 */ 701 if ((sc->bios_ctrl & BIOS_CTRL_AIPP_DIS) == 0) { 702 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_CONTROL_FLAG, word); 703 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_CONTROL_FLAG, 704 word | CONTROL_FLAG_ENABLE_AIPP); 705 } 706 707 /* 708 * For ASC-38C1600 use DMA_CFG0 default values: 709 * FIFO_THRESH_80B [6:4], and START_CTL_TH [3:2]. 710 */ 711 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_DMA_CFG0, 712 FIFO_THRESH_80B | START_CTL_TH | READ_CMD_MRM); 713 break; 714 } 715 716 /* 717 * Microcode operating variables for WDTR, SDTR, and command tag 718 * queuing will be set in AdvInquiryHandling() based on what a 719 * device reports it is capable of in Inquiry byte 7. 720 * 721 * If SCSI Bus Resets have been disabled, then directly set 722 * SDTR and WDTR from the EEPROM configuration. This will allow 723 * the BIOS and warm boot to work without a SCSI bus hang on 724 * the Inquiry caused by host and target mismatched DTR values. 725 * Without the SCSI Bus Reset, before an Inquiry a device can't 726 * be assumed to be in Asynchronous, Narrow mode. 727 */ 728 if ((sc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) { 729 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, sc->wdtr_able); 730 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, sc->sdtr_able); 731 } 732 733 /* 734 * Set microcode operating variables for SDTR_SPEED1, SDTR_SPEED2, 735 * SDTR_SPEED3, and SDTR_SPEED4 based on the ULTRA EEPROM per TID 736 * bitmask. These values determine the maximum SDTR speed negotiated 737 * with a device. 738 * 739 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2, 740 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them 741 * without determining here whether the device supports SDTR. 742 */ 743 switch (sc->chip_type) { 744 case ADW_CHIP_ASC3550: 745 word = 0; 746 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 747 if (ADW_TID_TO_TIDMASK(tid) & sc->ultra_able) { 748 /* Set Ultra speed for TID 'tid'. */ 749 word |= (0x3 << (4 * (tid % 4))); 750 } else { 751 /* Set Fast speed for TID 'tid'. */ 752 word |= (0x2 << (4 * (tid % 4))); 753 } 754 /* Check if done with sdtr_speed1. */ 755 if (tid == 3) { 756 ADW_WRITE_WORD_LRAM(iot, ioh, 757 ADW_MC_SDTR_SPEED1, word); 758 word = 0; 759 /* Check if done with sdtr_speed2. */ 760 } else if (tid == 7) { 761 ADW_WRITE_WORD_LRAM(iot, ioh, 762 ADW_MC_SDTR_SPEED2, word); 763 word = 0; 764 /* Check if done with sdtr_speed3. */ 765 } else if (tid == 11) { 766 ADW_WRITE_WORD_LRAM(iot, ioh, 767 ADW_MC_SDTR_SPEED3, word); 768 word = 0; 769 /* Check if done with sdtr_speed4. */ 770 } else if (tid == 15) { 771 ADW_WRITE_WORD_LRAM(iot, ioh, 772 ADW_MC_SDTR_SPEED4, word); 773 /* End of loop. */ 774 } 775 } 776 777 /* 778 * Set microcode operating variable for the 779 * disconnect per TID bitmask. 780 */ 781 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DISC_ENABLE, 782 sc->cfg.disc_enable); 783 break; 784 785 case ADW_CHIP_ASC38C0800: 786 /* FALLTHROUGH */ 787 case ADW_CHIP_ASC38C1600: 788 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DISC_ENABLE, 789 sc->cfg.disc_enable); 790 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_SPEED1, 791 sc->sdtr_speed1); 792 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_SPEED2, 793 sc->sdtr_speed2); 794 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_SPEED3, 795 sc->sdtr_speed3); 796 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_SPEED4, 797 sc->sdtr_speed4); 798 break; 799 } 800 801 802 /* 803 * Set SCSI_CFG0 Microcode Default Value. 804 * 805 * The microcode will set the SCSI_CFG0 register using this value 806 * after it is started below. 807 */ 808 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_SCSI_CFG0, 809 ADW_PARITY_EN | ADW_QUEUE_128 | ADW_SEL_TMO_LONG | 810 ADW_OUR_ID_EN | sc->chip_scsi_id); 811 812 813 switch(sc->chip_type) { 814 case ADW_CHIP_ASC3550: 815 error_code = AdwASC3550Cabling(iot, ioh, &sc->cfg); 816 break; 817 818 case ADW_CHIP_ASC38C0800: 819 error_code = AdwASC38C0800Cabling(iot, ioh, &sc->cfg); 820 break; 821 822 case ADW_CHIP_ASC38C1600: 823 error_code = AdwASC38C1600Cabling(iot, ioh, &sc->cfg); 824 break; 825 } 826 if(error_code) { 827 return error_code; 828 } 829 830 /* 831 * Set SEL_MASK Microcode Default Value 832 * 833 * The microcode will set the SEL_MASK register using this value 834 * after it is started below. 835 */ 836 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_SEL_MASK, 837 ADW_TID_TO_TIDMASK(sc->chip_scsi_id)); 838 839 /* 840 * Create and Initialize Host->RISC Carrier lists 841 */ 842 sc->carr_freelist = AdwInitCarriers(sc->sc_dmamap_carrier, 843 sc->sc_control->carriers); 844 845 /* 846 * Set-up the Host->RISC Initiator Command Queue (ICQ). 847 */ 848 849 if ((sc->icq_sp = sc->carr_freelist) == NULL) { 850 return ADW_IERR_NO_CARRIER; 851 } 852 sc->carr_freelist = ADW_CARRIER_VADDR(sc, 853 ASC_GET_CARRP(sc->icq_sp->next_ba)); 854 855 /* 856 * The first command issued will be placed in the stopper carrier. 857 */ 858 sc->icq_sp->next_ba = htole32(ASC_CQ_STOPPER); 859 860 /* 861 * Set RISC ICQ physical address start value. 862 */ 863 ADW_WRITE_DWORD_LRAM(iot, ioh, ADW_MC_ICQ, le32toh(sc->icq_sp->carr_ba)); 864 865 /* 866 * Initialize the COMMA register to the same value otherwise 867 * the RISC will prematurely detect a command is available. 868 */ 869 if(sc->chip_type == ADW_CHIP_ASC38C1600) { 870 ADW_WRITE_DWORD_REGISTER(iot, ioh, IOPDW_COMMA, 871 le32toh(sc->icq_sp->carr_ba)); 872 } 873 874 /* 875 * Set-up the RISC->Host Initiator Response Queue (IRQ). 876 */ 877 if ((sc->irq_sp = sc->carr_freelist) == NULL) { 878 return ADW_IERR_NO_CARRIER; 879 } 880 sc->carr_freelist = ADW_CARRIER_VADDR(sc, 881 ASC_GET_CARRP(sc->irq_sp->next_ba)); 882 883 /* 884 * The first command completed by the RISC will be placed in 885 * the stopper. 886 * 887 * Note: Set 'next_ba' to ASC_CQ_STOPPER. When the request is 888 * completed the RISC will set the ASC_RQ_DONE bit. 889 */ 890 sc->irq_sp->next_ba = htole32(ASC_CQ_STOPPER); 891 892 /* 893 * Set RISC IRQ physical address start value. 894 */ 895 ADW_WRITE_DWORD_LRAM(iot, ioh, ADW_MC_IRQ, le32toh(sc->irq_sp->carr_ba)); 896 sc->carr_pending_cnt = 0; 897 898 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_INTR_ENABLES, 899 (ADW_INTR_ENABLE_HOST_INTR | ADW_INTR_ENABLE_GLOBAL_INTR)); 900 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_CODE_BEGIN_ADDR, word); 901 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_PC, word); 902 903 /* finally, finally, gentlemen, start your engine */ 904 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_RISC_CSR, ADW_RISC_CSR_RUN); 905 906 /* 907 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus 908 * Resets should be performed. The RISC has to be running 909 * to issue a SCSI Bus Reset. 910 */ 911 if (sc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) 912 { 913 /* 914 * If the BIOS Signature is present in memory, restore the 915 * BIOS Handshake Configuration Table and do not perform 916 * a SCSI Bus Reset. 917 */ 918 if (bios_mem[(ADW_MC_BIOS_SIGNATURE - ADW_MC_BIOSMEM)/2] == 919 0x55AA) { 920 /* 921 * Restore per TID negotiated values. 922 */ 923 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, 924 wdtr_able); 925 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, 926 sdtr_able); 927 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, 928 tagqng_able); 929 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 930 ADW_WRITE_BYTE_LRAM(iot, ioh, 931 ADW_MC_NUMBER_OF_MAX_CMD + tid, 932 max_cmd[tid]); 933 } 934 } else { 935 if (AdwResetCCB(sc) != ADW_TRUE) { 936 error_code = ADW_WARN_BUSRESET_ERROR; 937 } 938 } 939 } 940 941 return error_code; 942 } 943 944 945 int 946 AdwRamSelfTest(iot, ioh, chip_type) 947 bus_space_tag_t iot; 948 bus_space_handle_t ioh; 949 u_int8_t chip_type; 950 { 951 int i; 952 u_int8_t byte; 953 954 955 if ((chip_type == ADW_CHIP_ASC38C0800) || 956 (chip_type == ADW_CHIP_ASC38C1600)) { 957 /* 958 * RAM BIST (RAM Built-In Self Test) 959 * 960 * Address : I/O base + offset 0x38h register (byte). 961 * Function: Bit 7-6(RW) : RAM mode 962 * Normal Mode : 0x00 963 * Pre-test Mode : 0x40 964 * RAM Test Mode : 0x80 965 * Bit 5 : unused 966 * Bit 4(RO) : Done bit 967 * Bit 3-0(RO) : Status 968 * Host Error : 0x08 969 * Int_RAM Error : 0x04 970 * RISC Error : 0x02 971 * SCSI Error : 0x01 972 * No Error : 0x00 973 * 974 * Note: RAM BIST code should be put right here, before loading 975 * the microcode and after saving the RISC memory BIOS region. 976 */ 977 978 /* 979 * LRAM Pre-test 980 * 981 * Write PRE_TEST_MODE (0x40) to register and wait for 982 * 10 milliseconds. 983 * If Done bit not set or low nibble not PRE_TEST_VALUE (0x05), 984 * return an error. Reset to NORMAL_MODE (0x00) and do again. 985 * If cannot reset to NORMAL_MODE, return an error too. 986 */ 987 for (i = 0; i < 2; i++) { 988 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST, 989 PRE_TEST_MODE); 990 /* Wait for 10ms before reading back. */ 991 AdwSleepMilliSecond(10); 992 byte = ADW_READ_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST); 993 if ((byte & RAM_TEST_DONE) == 0 || (byte & 0x0F) != 994 PRE_TEST_VALUE) { 995 return ADW_IERR_BIST_PRE_TEST; 996 } 997 998 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST, 999 NORMAL_MODE); 1000 /* Wait for 10ms before reading back. */ 1001 AdwSleepMilliSecond(10); 1002 if (ADW_READ_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST) 1003 != NORMAL_VALUE) { 1004 return ADW_IERR_BIST_PRE_TEST; 1005 } 1006 } 1007 1008 /* 1009 * LRAM Test - It takes about 1.5 ms to run through the test. 1010 * 1011 * Write RAM_TEST_MODE (0x80) to register and wait for 1012 * 10 milliseconds. 1013 * If Done bit not set or Status not 0, save register byte, 1014 * set the err_code, and return an error. 1015 */ 1016 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST, RAM_TEST_MODE); 1017 /* Wait for 10ms before checking status. */ 1018 AdwSleepMilliSecond(10); 1019 1020 byte = ADW_READ_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST); 1021 if ((byte & RAM_TEST_DONE)==0 || (byte & RAM_TEST_STATUS)!=0) { 1022 /* Get here if Done bit not set or Status not 0. */ 1023 return ADW_IERR_BIST_RAM_TEST; 1024 } 1025 1026 /* We need to reset back to normal mode after LRAM test passes*/ 1027 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_RAM_BIST, NORMAL_MODE); 1028 } 1029 1030 return 0; 1031 } 1032 1033 1034 int 1035 AdwLoadMCode(iot, ioh, bios_mem, chip_type) 1036 bus_space_tag_t iot; 1037 bus_space_handle_t ioh; 1038 u_int16_t *bios_mem; 1039 u_int8_t chip_type; 1040 { 1041 u_int8_t *mcode_data; 1042 u_int32_t mcode_chksum; 1043 u_int16_t mcode_size; 1044 u_int32_t sum; 1045 u_int16_t code_sum; 1046 int begin_addr; 1047 int end_addr; 1048 int word; 1049 int adw_memsize; 1050 int adw_mcode_expanded_size; 1051 int i, j; 1052 1053 1054 switch(chip_type) { 1055 case ADW_CHIP_ASC3550: 1056 mcode_data = (u_int8_t *)adw_asc3550_mcode_data.mcode_data; 1057 mcode_chksum = (u_int32_t)adw_asc3550_mcode_data.mcode_chksum; 1058 mcode_size = (u_int16_t)adw_asc3550_mcode_data.mcode_size; 1059 adw_memsize = ADW_3550_MEMSIZE; 1060 break; 1061 1062 case ADW_CHIP_ASC38C0800: 1063 mcode_data = (u_int8_t *)adw_asc38C0800_mcode_data.mcode_data; 1064 mcode_chksum =(u_int32_t)adw_asc38C0800_mcode_data.mcode_chksum; 1065 mcode_size = (u_int16_t)adw_asc38C0800_mcode_data.mcode_size; 1066 adw_memsize = ADW_38C0800_MEMSIZE; 1067 break; 1068 1069 case ADW_CHIP_ASC38C1600: 1070 mcode_data = (u_int8_t *)adw_asc38C1600_mcode_data.mcode_data; 1071 mcode_chksum =(u_int32_t)adw_asc38C1600_mcode_data.mcode_chksum; 1072 mcode_size = (u_int16_t)adw_asc38C1600_mcode_data.mcode_size; 1073 adw_memsize = ADW_38C1600_MEMSIZE; 1074 break; 1075 1076 default: 1077 return (EINVAL); 1078 } 1079 1080 /* 1081 * Write the microcode image to RISC memory starting at address 0. 1082 */ 1083 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_RAM_ADDR, 0); 1084 1085 /* Assume the following compressed format of the microcode buffer: 1086 * 1087 * 254 word (508 byte) table indexed by byte code followed 1088 * by the following byte codes: 1089 * 1090 * 1-Byte Code: 1091 * 00: Emit word 0 in table. 1092 * 01: Emit word 1 in table. 1093 * . 1094 * FD: Emit word 253 in table. 1095 * 1096 * Multi-Byte Code: 1097 * FE WW WW: (3 byte code) Word to emit is the next word WW WW. 1098 * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. 1099 */ 1100 word = 0; 1101 for (i = 253 * 2; i < mcode_size; i++) { 1102 if (mcode_data[i] == 0xff) { 1103 for (j = 0; j < mcode_data[i + 1]; j++) { 1104 ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, 1105 (((u_int16_t)mcode_data[i + 3] << 8) | 1106 mcode_data[i + 2])); 1107 word++; 1108 } 1109 i += 3; 1110 } else if (mcode_data[i] == 0xfe) { 1111 ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, 1112 (((u_int16_t)mcode_data[i + 2] << 8) | 1113 mcode_data[i + 1])); 1114 i += 2; 1115 word++; 1116 } else { 1117 ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, (((u_int16_t) 1118 mcode_data[(mcode_data[i] * 2) + 1] <<8) | 1119 mcode_data[mcode_data[i] * 2])); 1120 word++; 1121 } 1122 } 1123 1124 /* 1125 * Set 'word' for later use to clear the rest of memory and save 1126 * the expanded mcode size. 1127 */ 1128 word *= 2; 1129 adw_mcode_expanded_size = word; 1130 1131 /* 1132 * Clear the rest of the Internal RAM. 1133 */ 1134 for (; word < adw_memsize; word += 2) { 1135 ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, 0); 1136 } 1137 1138 /* 1139 * Verify the microcode checksum. 1140 */ 1141 sum = 0; 1142 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_RAM_ADDR, 0); 1143 1144 for (word = 0; word < adw_mcode_expanded_size; word += 2) { 1145 sum += ADW_READ_WORD_AUTO_INC_LRAM(iot, ioh); 1146 } 1147 1148 if (sum != mcode_chksum) { 1149 return ADW_IERR_MCODE_CHKSUM; 1150 } 1151 1152 /* 1153 * Restore the RISC memory BIOS region. 1154 */ 1155 for (i = 0; i < ADW_MC_BIOSLEN/2; i++) { 1156 if(chip_type == ADW_CHIP_ASC3550) { 1157 ADW_WRITE_BYTE_LRAM(iot, ioh, ADW_MC_BIOSMEM + (2 * i), 1158 bios_mem[i]); 1159 } else { 1160 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_BIOSMEM + (2 * i), 1161 bios_mem[i]); 1162 } 1163 } 1164 1165 /* 1166 * Calculate and write the microcode code checksum to the microcode 1167 * code checksum location ADW_MC_CODE_CHK_SUM (0x2C). 1168 */ 1169 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_CODE_BEGIN_ADDR, begin_addr); 1170 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_CODE_END_ADDR, end_addr); 1171 code_sum = 0; 1172 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_RAM_ADDR, begin_addr); 1173 for (word = begin_addr; word < end_addr; word += 2) { 1174 code_sum += ADW_READ_WORD_AUTO_INC_LRAM(iot, ioh); 1175 } 1176 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_CODE_CHK_SUM, code_sum); 1177 1178 /* 1179 * Set the chip type. 1180 */ 1181 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_CHIP_TYPE, chip_type); 1182 1183 return 0; 1184 } 1185 1186 1187 int 1188 AdwASC3550Cabling(iot, ioh, cfg) 1189 bus_space_tag_t iot; 1190 bus_space_handle_t ioh; 1191 ADW_DVC_CFG *cfg; 1192 { 1193 u_int16_t scsi_cfg1; 1194 1195 1196 /* 1197 * Determine SCSI_CFG1 Microcode Default Value. 1198 * 1199 * The microcode will set the SCSI_CFG1 register using this value 1200 * after it is started below. 1201 */ 1202 1203 /* Read current SCSI_CFG1 Register value. */ 1204 scsi_cfg1 = ADW_READ_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1); 1205 1206 /* 1207 * If all three connectors are in use in ASC3550, return an error. 1208 */ 1209 if ((scsi_cfg1 & CABLE_ILLEGAL_A) == 0 || 1210 (scsi_cfg1 & CABLE_ILLEGAL_B) == 0) { 1211 return ADW_IERR_ILLEGAL_CONNECTION; 1212 } 1213 1214 /* 1215 * If the cable is reversed all of the SCSI_CTRL register signals 1216 * will be set. Check for and return an error if this condition is 1217 * found. 1218 */ 1219 if ((ADW_READ_WORD_REGISTER(iot,ioh, IOPW_SCSI_CTRL) & 0x3F07)==0x3F07){ 1220 return ADW_IERR_REVERSED_CABLE; 1221 } 1222 1223 /* 1224 * If this is a differential board and a single-ended device 1225 * is attached to one of the connectors, return an error. 1226 */ 1227 if ((scsi_cfg1 & ADW_DIFF_MODE) && 1228 (scsi_cfg1 & ADW_DIFF_SENSE) == 0) { 1229 return ADW_IERR_SINGLE_END_DEVICE; 1230 } 1231 1232 /* 1233 * If automatic termination control is enabled, then set the 1234 * termination value based on a table listed in a_condor.h. 1235 * 1236 * If manual termination was specified with an EEPROM setting 1237 * then 'termination' was set-up in AdwInitFromEEPROM() and 1238 * is ready to be 'ored' into SCSI_CFG1. 1239 */ 1240 if (cfg->termination == 0) { 1241 /* 1242 * The software always controls termination by setting 1243 * TERM_CTL_SEL. 1244 * If TERM_CTL_SEL were set to 0, the hardware would set 1245 * termination. 1246 */ 1247 cfg->termination |= ADW_TERM_CTL_SEL; 1248 1249 switch(scsi_cfg1 & ADW_CABLE_DETECT) { 1250 /* TERM_CTL_H: on, TERM_CTL_L: on */ 1251 case 0x3: case 0x7: case 0xB: 1252 case 0xD: case 0xE: case 0xF: 1253 cfg->termination |= 1254 (ADW_TERM_CTL_H | ADW_TERM_CTL_L); 1255 break; 1256 1257 /* TERM_CTL_H: on, TERM_CTL_L: off */ 1258 case 0x1: case 0x5: case 0x9: 1259 case 0xA: case 0xC: 1260 cfg->termination |= ADW_TERM_CTL_H; 1261 break; 1262 1263 /* TERM_CTL_H: off, TERM_CTL_L: off */ 1264 case 0x2: case 0x6: 1265 break; 1266 } 1267 } 1268 1269 /* 1270 * Clear any set TERM_CTL_H and TERM_CTL_L bits. 1271 */ 1272 scsi_cfg1 &= ~ADW_TERM_CTL; 1273 1274 /* 1275 * Invert the TERM_CTL_H and TERM_CTL_L bits and then 1276 * set 'scsi_cfg1'. The TERM_POL bit does not need to be 1277 * referenced, because the hardware internally inverts 1278 * the Termination High and Low bits if TERM_POL is set. 1279 */ 1280 scsi_cfg1 |= (ADW_TERM_CTL_SEL | (~cfg->termination & ADW_TERM_CTL)); 1281 1282 /* 1283 * Set SCSI_CFG1 Microcode Default Value 1284 * 1285 * Set filter value and possibly modified termination control 1286 * bits in the Microcode SCSI_CFG1 Register Value. 1287 * 1288 * The microcode will set the SCSI_CFG1 register using this value 1289 * after it is started below. 1290 */ 1291 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_SCSI_CFG1, 1292 ADW_FLTR_DISABLE | scsi_cfg1); 1293 1294 /* 1295 * Set MEM_CFG Microcode Default Value 1296 * 1297 * The microcode will set the MEM_CFG register using this value 1298 * after it is started below. 1299 * 1300 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 1301 * are defined. 1302 * 1303 * ASC-3550 has 8KB internal memory. 1304 */ 1305 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_MEM_CFG, 1306 ADW_BIOS_EN | ADW_RAM_SZ_8KB); 1307 1308 return 0; 1309 } 1310 1311 1312 int 1313 AdwASC38C0800Cabling(iot, ioh, cfg) 1314 bus_space_tag_t iot; 1315 bus_space_handle_t ioh; 1316 ADW_DVC_CFG *cfg; 1317 { 1318 u_int16_t scsi_cfg1; 1319 1320 1321 /* 1322 * Determine SCSI_CFG1 Microcode Default Value. 1323 * 1324 * The microcode will set the SCSI_CFG1 register using this value 1325 * after it is started below. 1326 */ 1327 1328 /* Read current SCSI_CFG1 Register value. */ 1329 scsi_cfg1 = ADW_READ_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1); 1330 1331 /* 1332 * If the cable is reversed all of the SCSI_CTRL register signals 1333 * will be set. Check for and return an error if this condition is 1334 * found. 1335 */ 1336 if ((ADW_READ_WORD_REGISTER(iot,ioh, IOPW_SCSI_CTRL) & 0x3F07)==0x3F07){ 1337 return ADW_IERR_REVERSED_CABLE; 1338 } 1339 1340 /* 1341 * All kind of combinations of devices attached to one of four 1342 * connectors are acceptable except HVD device attached. 1343 * For example, LVD device can be attached to SE connector while 1344 * SE device attached to LVD connector. 1345 * If LVD device attached to SE connector, it only runs up to 1346 * Ultra speed. 1347 * 1348 * If an HVD device is attached to one of LVD connectors, return 1349 * an error. 1350 * However, there is no way to detect HVD device attached to 1351 * SE connectors. 1352 */ 1353 if (scsi_cfg1 & ADW_HVD) { 1354 return ADW_IERR_HVD_DEVICE; 1355 } 1356 1357 /* 1358 * If either SE or LVD automatic termination control is enabled, then 1359 * set the termination value based on a table listed in a_condor.h. 1360 * 1361 * If manual termination was specified with an EEPROM setting then 1362 * 'termination' was set-up in AdwInitFromEEPROM() and is ready 1363 * to be 'ored' into SCSI_CFG1. 1364 */ 1365 if ((cfg->termination & ADW_TERM_SE) == 0) { 1366 /* SE automatic termination control is enabled. */ 1367 switch(scsi_cfg1 & ADW_C_DET_SE) { 1368 /* TERM_SE_HI: on, TERM_SE_LO: on */ 1369 case 0x1: case 0x2: case 0x3: 1370 cfg->termination |= ADW_TERM_SE; 1371 break; 1372 1373 /* TERM_SE_HI: on, TERM_SE_LO: off */ 1374 case 0x0: 1375 cfg->termination |= ADW_TERM_SE_HI; 1376 break; 1377 } 1378 } 1379 1380 if ((cfg->termination & ADW_TERM_LVD) == 0) { 1381 /* LVD automatic termination control is enabled. */ 1382 switch(scsi_cfg1 & ADW_C_DET_LVD) { 1383 /* TERM_LVD_HI: on, TERM_LVD_LO: on */ 1384 case 0x4: case 0x8: case 0xC: 1385 cfg->termination |= ADW_TERM_LVD; 1386 break; 1387 1388 /* TERM_LVD_HI: off, TERM_LVD_LO: off */ 1389 case 0x0: 1390 break; 1391 } 1392 } 1393 1394 /* 1395 * Clear any set TERM_SE and TERM_LVD bits. 1396 */ 1397 scsi_cfg1 &= (~ADW_TERM_SE & ~ADW_TERM_LVD); 1398 1399 /* 1400 * Invert the TERM_SE and TERM_LVD bits and then set 'scsi_cfg1'. 1401 */ 1402 scsi_cfg1 |= (~cfg->termination & 0xF0); 1403 1404 /* 1405 * Clear BIG_ENDIAN, DIS_TERM_DRV, Terminator Polarity and 1406 * HVD/LVD/SE bits and set possibly modified termination control bits 1407 * in the Microcode SCSI_CFG1 Register Value. 1408 */ 1409 scsi_cfg1 &= (~ADW_BIG_ENDIAN & ~ADW_DIS_TERM_DRV & 1410 ~ADW_TERM_POL & ~ADW_HVD_LVD_SE); 1411 1412 /* 1413 * Set SCSI_CFG1 Microcode Default Value 1414 * 1415 * Set possibly modified termination control and reset DIS_TERM_DRV 1416 * bits in the Microcode SCSI_CFG1 Register Value. 1417 * 1418 * The microcode will set the SCSI_CFG1 register using this value 1419 * after it is started below. 1420 */ 1421 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_SCSI_CFG1, scsi_cfg1); 1422 1423 /* 1424 * Set MEM_CFG Microcode Default Value 1425 * 1426 * The microcode will set the MEM_CFG register using this value 1427 * after it is started below. 1428 * 1429 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 1430 * are defined. 1431 * 1432 * ASC-38C0800 has 16KB internal memory. 1433 */ 1434 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_MEM_CFG, 1435 ADW_BIOS_EN | ADW_RAM_SZ_16KB); 1436 1437 return 0; 1438 } 1439 1440 1441 int 1442 AdwASC38C1600Cabling(iot, ioh, cfg) 1443 bus_space_tag_t iot; 1444 bus_space_handle_t ioh; 1445 ADW_DVC_CFG *cfg; 1446 { 1447 u_int16_t scsi_cfg1; 1448 1449 1450 /* 1451 * Determine SCSI_CFG1 Microcode Default Value. 1452 * 1453 * The microcode will set the SCSI_CFG1 register using this value 1454 * after it is started below. 1455 * Each ASC-38C1600 function has only two cable detect bits. 1456 * The bus mode override bits are in IOPB_SOFT_OVER_WR. 1457 */ 1458 1459 /* Read current SCSI_CFG1 Register value. */ 1460 scsi_cfg1 = ADW_READ_WORD_REGISTER(iot, ioh, IOPW_SCSI_CFG1); 1461 1462 /* 1463 * If the cable is reversed all of the SCSI_CTRL register signals 1464 * will be set. Check for and return an error if this condition is 1465 * found. 1466 */ 1467 if ((ADW_READ_WORD_REGISTER(iot,ioh, IOPW_SCSI_CTRL) & 0x3F07)==0x3F07){ 1468 return ADW_IERR_REVERSED_CABLE; 1469 } 1470 1471 /* 1472 * Each ASC-38C1600 function has two connectors. Only an HVD device 1473 * cannot be connected to either connector. An LVD device or SE device 1474 * may be connected to either connector. If an SE device is connected, 1475 * then at most Ultra speed (20 MHz) can be used on both connectors. 1476 * 1477 * If an HVD device is attached, return an error. 1478 */ 1479 if (scsi_cfg1 & ADW_HVD) { 1480 return ADW_IERR_HVD_DEVICE; 1481 } 1482 1483 /* 1484 * Each function in the ASC-38C1600 uses only the SE cable detect and 1485 * termination because there are two connectors for each function. 1486 * Each function may use either LVD or SE mode. 1487 * Corresponding the SE automatic termination control EEPROM bits are 1488 * used for each function. 1489 * Each function has its own EEPROM. If SE automatic control is enabled 1490 * for the function, then set the termination value based on a table 1491 * listed in adwlib.h. 1492 * 1493 * If manual termination is specified in the EEPROM for the function, 1494 * then 'termination' was set-up in AdwInitFromEEPROM() and is 1495 * ready to be 'ored' into SCSI_CFG1. 1496 */ 1497 if ((cfg->termination & ADW_TERM_SE) == 0) { 1498 /* SE automatic termination control is enabled. */ 1499 switch(scsi_cfg1 & ADW_C_DET_SE) { 1500 /* TERM_SE_HI: on, TERM_SE_LO: on */ 1501 case 0x1: case 0x2: case 0x3: 1502 cfg->termination |= ADW_TERM_SE; 1503 break; 1504 1505 case 0x0: 1506 #if 0 1507 /* !!!!TODO!!!! */ 1508 if (ASC_PCI_ID2FUNC(cfg->pci_slot_info) == 0) { 1509 /* Function 0 - TERM_SE_HI: off, TERM_SE_LO: off */ 1510 } 1511 else 1512 #endif 1513 { 1514 /* Function 1 - TERM_SE_HI: on, TERM_SE_LO: off */ 1515 cfg->termination |= ADW_TERM_SE_HI; 1516 } 1517 break; 1518 } 1519 } 1520 1521 /* 1522 * Clear any set TERM_SE bits. 1523 */ 1524 scsi_cfg1 &= ~ADW_TERM_SE; 1525 1526 /* 1527 * Invert the TERM_SE bits and then set 'scsi_cfg1'. 1528 */ 1529 scsi_cfg1 |= (~cfg->termination & ADW_TERM_SE); 1530 1531 /* 1532 * Clear Big Endian and Terminator Polarity bits and set possibly 1533 * modified termination control bits in the Microcode SCSI_CFG1 1534 * Register Value. 1535 */ 1536 scsi_cfg1 &= (~ADW_BIG_ENDIAN & ~ADW_DIS_TERM_DRV & ~ADW_TERM_POL); 1537 1538 /* 1539 * Set SCSI_CFG1 Microcode Default Value 1540 * 1541 * Set possibly modified termination control bits in the Microcode 1542 * SCSI_CFG1 Register Value. 1543 * 1544 * The microcode will set the SCSI_CFG1 register using this value 1545 * after it is started below. 1546 */ 1547 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_SCSI_CFG1, scsi_cfg1); 1548 1549 /* 1550 * Set MEM_CFG Microcode Default Value 1551 * 1552 * The microcode will set the MEM_CFG register using this value 1553 * after it is started below. 1554 * 1555 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 1556 * are defined. 1557 * 1558 * ASC-38C1600 has 32KB internal memory. 1559 */ 1560 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_DEFAULT_MEM_CFG, 1561 ADW_BIOS_EN | ADW_RAM_SZ_32KB); 1562 1563 return 0; 1564 } 1565 1566 1567 /* 1568 * Read EEPROM configuration into the specified buffer. 1569 * 1570 * Return a checksum based on the EEPROM configuration read. 1571 */ 1572 static u_int16_t 1573 AdwGetEEPROMConfig(iot, ioh, cfg_buf) 1574 bus_space_tag_t iot; 1575 bus_space_handle_t ioh; 1576 ADW_EEPROM *cfg_buf; 1577 { 1578 u_int16_t wval, chksum; 1579 u_int16_t *wbuf; 1580 int eep_addr; 1581 1582 1583 wbuf = (u_int16_t *) cfg_buf; 1584 chksum = 0; 1585 1586 for (eep_addr = ASC_EEP_DVC_CFG_BEGIN; 1587 eep_addr < ASC_EEP_DVC_CFG_END; 1588 eep_addr++, wbuf++) { 1589 wval = AdwReadEEPWord(iot, ioh, eep_addr); 1590 chksum += wval; 1591 *wbuf = wval; 1592 } 1593 1594 *wbuf = AdwReadEEPWord(iot, ioh, eep_addr); 1595 wbuf++; 1596 for (eep_addr = ASC_EEP_DVC_CTL_BEGIN; 1597 eep_addr < ASC_EEP_MAX_WORD_ADDR; 1598 eep_addr++, wbuf++) { 1599 *wbuf = AdwReadEEPWord(iot, ioh, eep_addr); 1600 } 1601 1602 return chksum; 1603 } 1604 1605 1606 /* 1607 * Read the EEPROM from specified location 1608 */ 1609 static u_int16_t 1610 AdwReadEEPWord(iot, ioh, eep_word_addr) 1611 bus_space_tag_t iot; 1612 bus_space_handle_t ioh; 1613 int eep_word_addr; 1614 { 1615 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, 1616 ASC_EEP_CMD_READ | eep_word_addr); 1617 AdwWaitEEPCmd(iot, ioh); 1618 1619 return ADW_READ_WORD_REGISTER(iot, ioh, IOPW_EE_DATA); 1620 } 1621 1622 1623 /* 1624 * Wait for EEPROM command to complete 1625 */ 1626 static void 1627 AdwWaitEEPCmd(iot, ioh) 1628 bus_space_tag_t iot; 1629 bus_space_handle_t ioh; 1630 { 1631 int eep_delay_ms; 1632 1633 1634 for (eep_delay_ms = 0; eep_delay_ms < ASC_EEP_DELAY_MS; eep_delay_ms++){ 1635 if (ADW_READ_WORD_REGISTER(iot, ioh, IOPW_EE_CMD) & 1636 ASC_EEP_CMD_DONE) { 1637 break; 1638 } 1639 AdwSleepMilliSecond(1); 1640 } 1641 1642 ADW_READ_WORD_REGISTER(iot, ioh, IOPW_EE_CMD); 1643 } 1644 1645 1646 /* 1647 * Write the EEPROM from 'cfg_buf'. 1648 */ 1649 static void 1650 AdwSetEEPROMConfig(iot, ioh, cfg_buf) 1651 bus_space_tag_t iot; 1652 bus_space_handle_t ioh; 1653 ADW_EEPROM *cfg_buf; 1654 { 1655 u_int16_t *wbuf; 1656 u_int16_t addr, chksum; 1657 1658 1659 wbuf = (u_int16_t *) cfg_buf; 1660 chksum = 0; 1661 1662 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); 1663 AdwWaitEEPCmd(iot, ioh); 1664 1665 /* 1666 * Write EEPROM from word 0 to word 20 1667 */ 1668 for (addr = ASC_EEP_DVC_CFG_BEGIN; 1669 addr < ASC_EEP_DVC_CFG_END; addr++, wbuf++) { 1670 chksum += *wbuf; 1671 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_DATA, *wbuf); 1672 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, 1673 ASC_EEP_CMD_WRITE | addr); 1674 AdwWaitEEPCmd(iot, ioh); 1675 AdwSleepMilliSecond(ASC_EEP_DELAY_MS); 1676 } 1677 1678 /* 1679 * Write EEPROM checksum at word 21 1680 */ 1681 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_DATA, chksum); 1682 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, 1683 ASC_EEP_CMD_WRITE | addr); 1684 AdwWaitEEPCmd(iot, ioh); 1685 wbuf++; /* skip over check_sum */ 1686 1687 /* 1688 * Write EEPROM OEM name at words 22 to 29 1689 */ 1690 for (addr = ASC_EEP_DVC_CTL_BEGIN; 1691 addr < ASC_EEP_MAX_WORD_ADDR; addr++, wbuf++) { 1692 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_DATA, *wbuf); 1693 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, 1694 ASC_EEP_CMD_WRITE | addr); 1695 AdwWaitEEPCmd(iot, ioh); 1696 } 1697 1698 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_EE_CMD, 1699 ASC_EEP_CMD_WRITE_DISABLE); 1700 AdwWaitEEPCmd(iot, ioh); 1701 1702 return; 1703 } 1704 1705 1706 /* 1707 * AdwExeScsiQueue() - Send a request to the RISC microcode program. 1708 * 1709 * Allocate a carrier structure, point the carrier to the ADW_SCSI_REQ_Q, 1710 * add the carrier to the ICQ (Initiator Command Queue), and tickle the 1711 * RISC to notify it a new command is ready to be executed. 1712 * 1713 * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be 1714 * set to SCSI_MAX_RETRY. 1715 * 1716 * Return: 1717 * ADW_SUCCESS(1) - The request was successfully queued. 1718 * ADW_BUSY(0) - Resource unavailable; Retry again after pending 1719 * request completes. 1720 * ADW_ERROR(-1) - Invalid ADW_SCSI_REQ_Q request structure 1721 * host IC error. 1722 */ 1723 int 1724 AdwExeScsiQueue(sc, scsiq) 1725 ADW_SOFTC *sc; 1726 ADW_SCSI_REQ_Q *scsiq; 1727 { 1728 bus_space_tag_t iot = sc->sc_iot; 1729 bus_space_handle_t ioh = sc->sc_ioh; 1730 ADW_CCB *ccb; 1731 u_int32_t req_paddr; 1732 ADW_CARRIER *new_carrp; 1733 1734 /* 1735 * The ADW_SCSI_REQ_Q 'target_id' field should never exceed ADW_MAX_TID. 1736 */ 1737 if (scsiq->target_id > ADW_MAX_TID) { 1738 scsiq->host_status = QHSTA_M_INVALID_DEVICE; 1739 scsiq->done_status = QD_WITH_ERROR; 1740 return ADW_ERROR; 1741 } 1742 1743 /* 1744 * Begin of CRITICAL SECTION: Must be protected within splbio/splx pair 1745 */ 1746 1747 ccb = adw_ccb_phys_kv(sc, scsiq->ccb_ptr); 1748 1749 /* 1750 * Allocate a carrier and initialize fields. 1751 */ 1752 if ((new_carrp = sc->carr_freelist) == NULL) { 1753 return ADW_BUSY; 1754 } 1755 sc->carr_freelist = ADW_CARRIER_VADDR(sc, 1756 ASC_GET_CARRP(new_carrp->next_ba)); 1757 sc->carr_pending_cnt++; 1758 1759 /* 1760 * Set the carrier to be a stopper by setting 'next_ba' 1761 * to the stopper value. The current stopper will be changed 1762 * below to point to the new stopper. 1763 */ 1764 new_carrp->next_ba = htole32(ASC_CQ_STOPPER); 1765 1766 req_paddr = sc->sc_dmamap_control->dm_segs[0].ds_addr + 1767 ADW_CCB_OFF(ccb) + offsetof(struct adw_ccb, scsiq); 1768 1769 /* Save physical address of ADW_SCSI_REQ_Q and Carrier. */ 1770 scsiq->scsiq_rptr = htole32(req_paddr); 1771 1772 /* 1773 * Every ADV_CARR_T.carr_ba is byte swapped to little-endian 1774 * order during initialization. 1775 */ 1776 scsiq->carr_ba = sc->icq_sp->carr_ba; 1777 scsiq->carr_va = sc->icq_sp->carr_ba; 1778 1779 /* 1780 * Use the current stopper to send the ADW_SCSI_REQ_Q command to 1781 * the microcode. The newly allocated stopper will become the new 1782 * stopper. 1783 */ 1784 sc->icq_sp->areq_ba = htole32(req_paddr); 1785 1786 /* 1787 * Set the 'next_ba' pointer for the old stopper to be the 1788 * physical address of the new stopper. The RISC can only 1789 * follow physical addresses. 1790 */ 1791 sc->icq_sp->next_ba = new_carrp->carr_ba; 1792 1793 #if ADW_DEBUG 1794 printf("icq 0x%x, 0x%x, 0x%x, 0x%x\n", 1795 sc->icq_sp->carr_id, 1796 sc->icq_sp->carr_ba, 1797 sc->icq_sp->areq_ba, 1798 sc->icq_sp->next_ba); 1799 #endif 1800 /* 1801 * Set the host adapter stopper pointer to point to the new carrier. 1802 */ 1803 sc->icq_sp = new_carrp; 1804 1805 if (sc->chip_type == ADW_CHIP_ASC3550 || 1806 sc->chip_type == ADW_CHIP_ASC38C0800) { 1807 /* 1808 * Tickle the RISC to tell it to read its Command Queue Head 1809 * pointer. 1810 */ 1811 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_TICKLE, ADW_TICKLE_A); 1812 if (sc->chip_type == ADW_CHIP_ASC3550) { 1813 /* 1814 * Clear the tickle value. In the ASC-3550 the RISC flag 1815 * command 'clr_tickle_a' does not work unless the host 1816 * value is cleared. 1817 */ 1818 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_TICKLE, 1819 ADW_TICKLE_NOP); 1820 } 1821 } else if (sc->chip_type == ADW_CHIP_ASC38C1600) { 1822 /* 1823 * Notify the RISC a carrier is ready by writing the physical 1824 * address of the new carrier stopper to the COMMA register. 1825 */ 1826 ADW_WRITE_DWORD_REGISTER(iot, ioh, IOPDW_COMMA, 1827 le32toh(new_carrp->carr_ba)); 1828 } 1829 1830 /* 1831 * End of CRITICAL SECTION: Must be protected within splbio/splx pair 1832 */ 1833 1834 return ADW_SUCCESS; 1835 } 1836 1837 1838 void 1839 AdwResetChip(iot, ioh) 1840 bus_space_tag_t iot; 1841 bus_space_handle_t ioh; 1842 { 1843 1844 /* 1845 * Reset Chip. 1846 */ 1847 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_CTRL_REG, 1848 ADW_CTRL_REG_CMD_RESET); 1849 AdwSleepMilliSecond(100); 1850 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_CTRL_REG, 1851 ADW_CTRL_REG_CMD_WR_IO_REG); 1852 } 1853 1854 1855 /* 1856 * Reset SCSI Bus and purge all outstanding requests. 1857 * 1858 * Return Value: 1859 * ADW_TRUE(1) - All requests are purged and SCSI Bus is reset. 1860 * ADW_FALSE(0) - Microcode command failed. 1861 * ADW_ERROR(-1) - Microcode command timed-out. Microcode or IC 1862 * may be hung which requires driver recovery. 1863 */ 1864 int 1865 AdwResetCCB(sc) 1866 ADW_SOFTC *sc; 1867 { 1868 int status; 1869 1870 /* 1871 * Send the SCSI Bus Reset idle start idle command which asserts 1872 * the SCSI Bus Reset signal. 1873 */ 1874 status = AdwSendIdleCmd(sc, (u_int16_t) IDLE_CMD_SCSI_RESET_START, 0L); 1875 if (status != ADW_TRUE) { 1876 return status; 1877 } 1878 1879 /* 1880 * Delay for the specified SCSI Bus Reset hold time. 1881 * 1882 * The hold time delay is done on the host because the RISC has no 1883 * microsecond accurate timer. 1884 */ 1885 AdwDelayMicroSecond((u_int16_t) ASC_SCSI_RESET_HOLD_TIME_US); 1886 1887 /* 1888 * Send the SCSI Bus Reset end idle command which de-asserts 1889 * the SCSI Bus Reset signal and purges any pending requests. 1890 */ 1891 status = AdwSendIdleCmd(sc, (u_int16_t) IDLE_CMD_SCSI_RESET_END, 0L); 1892 if (status != ADW_TRUE) { 1893 return status; 1894 } 1895 1896 AdwSleepMilliSecond((u_int32_t) sc->scsi_reset_wait * 1000); 1897 1898 return status; 1899 } 1900 1901 1902 /* 1903 * Reset chip and SCSI Bus. 1904 * 1905 * Return Value: 1906 * ADW_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. 1907 * ADW_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. 1908 */ 1909 int 1910 AdwResetSCSIBus(sc) 1911 ADW_SOFTC *sc; 1912 { 1913 bus_space_tag_t iot = sc->sc_iot; 1914 bus_space_handle_t ioh = sc->sc_ioh; 1915 int status; 1916 u_int16_t wdtr_able, sdtr_able, tagqng_able; 1917 u_int16_t ppr_able = 0; /* XXX: gcc */ 1918 u_int8_t tid, max_cmd[ADW_MAX_TID + 1]; 1919 u_int16_t bios_sig; 1920 1921 1922 /* 1923 * Save current per TID negotiated values. 1924 */ 1925 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, wdtr_able); 1926 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, sdtr_able); 1927 if (sc->chip_type == ADW_CHIP_ASC38C1600) { 1928 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_PPR_ABLE, ppr_able); 1929 } 1930 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, tagqng_able); 1931 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 1932 ADW_READ_BYTE_LRAM(iot, ioh, ADW_MC_NUMBER_OF_MAX_CMD + tid, 1933 max_cmd[tid]); 1934 } 1935 1936 /* 1937 * Force the AdwInitAscDriver() function to perform a SCSI Bus Reset 1938 * by clearing the BIOS signature word. 1939 * The initialization functions assumes a SCSI Bus Reset is not 1940 * needed if the BIOS signature word is present. 1941 */ 1942 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_BIOS_SIGNATURE, bios_sig); 1943 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_BIOS_SIGNATURE, 0); 1944 1945 /* 1946 * Stop chip and reset it. 1947 */ 1948 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_RISC_CSR, ADW_RISC_CSR_STOP); 1949 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_CTRL_REG, 1950 ADW_CTRL_REG_CMD_RESET); 1951 AdwSleepMilliSecond(100); 1952 ADW_WRITE_WORD_REGISTER(iot, ioh, IOPW_CTRL_REG, 1953 ADW_CTRL_REG_CMD_WR_IO_REG); 1954 1955 /* 1956 * Reset Adv Library error code, if any, and try 1957 * re-initializing the chip. 1958 * Then translate initialization return value to status value. 1959 */ 1960 status = (AdwInitDriver(sc) == 0)? ADW_TRUE : ADW_FALSE; 1961 1962 /* 1963 * Restore the BIOS signature word. 1964 */ 1965 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_BIOS_SIGNATURE, bios_sig); 1966 1967 /* 1968 * Restore per TID negotiated values. 1969 */ 1970 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, wdtr_able); 1971 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, sdtr_able); 1972 if (sc->chip_type == ADW_CHIP_ASC38C1600) { 1973 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_PPR_ABLE, ppr_able); 1974 } 1975 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, tagqng_able); 1976 for (tid = 0; tid <= ADW_MAX_TID; tid++) { 1977 ADW_WRITE_BYTE_LRAM(iot, ioh, ADW_MC_NUMBER_OF_MAX_CMD + tid, 1978 max_cmd[tid]); 1979 } 1980 1981 return status; 1982 } 1983 1984 1985 /* 1986 * Adv Library Interrupt Service Routine 1987 * 1988 * This function is called by a driver's interrupt service routine. 1989 * The function disables and re-enables interrupts. 1990 * 1991 * When a microcode idle command is completed, the ADV_DVC_VAR 1992 * 'idle_cmd_done' field is set to ADW_TRUE. 1993 * 1994 * Note: AdwISR() can be called when interrupts are disabled or even 1995 * when there is no hardware interrupt condition present. It will 1996 * always check for completed idle commands and microcode requests. 1997 * This is an important feature that shouldn't be changed because it 1998 * allows commands to be completed from polling mode loops. 1999 * 2000 * Return: 2001 * ADW_TRUE(1) - interrupt was pending 2002 * ADW_FALSE(0) - no interrupt was pending 2003 */ 2004 int 2005 AdwISR(sc) 2006 ADW_SOFTC *sc; 2007 { 2008 bus_space_tag_t iot = sc->sc_iot; 2009 bus_space_handle_t ioh = sc->sc_ioh; 2010 u_int8_t int_stat; 2011 ADW_CARRIER *free_carrp/*, *ccb_carr*/; 2012 u_int32_t irq_next_pa; 2013 ADW_SCSI_REQ_Q *scsiq; 2014 ADW_CCB *ccb; 2015 int s; 2016 2017 2018 s = splbio(); 2019 2020 /* Reading the register clears the interrupt. */ 2021 int_stat = ADW_READ_BYTE_REGISTER(iot, ioh, IOPB_INTR_STATUS_REG); 2022 2023 if ((int_stat & (ADW_INTR_STATUS_INTRA | ADW_INTR_STATUS_INTRB | 2024 ADW_INTR_STATUS_INTRC)) == 0) { 2025 splx(s); 2026 return ADW_FALSE; 2027 } 2028 2029 /* 2030 * Notify the driver of an asynchronous microcode condition by 2031 * calling the ADV_DVC_VAR.async_callback function. The function 2032 * is passed the microcode ADW_MC_INTRB_CODE byte value. 2033 */ 2034 if (int_stat & ADW_INTR_STATUS_INTRB) { 2035 u_int8_t intrb_code; 2036 2037 ADW_READ_BYTE_LRAM(iot, ioh, ADW_MC_INTRB_CODE, intrb_code); 2038 2039 if (sc->chip_type == ADW_CHIP_ASC3550 || 2040 sc->chip_type == ADW_CHIP_ASC38C0800) { 2041 if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && 2042 sc->carr_pending_cnt != 0) { 2043 ADW_WRITE_BYTE_REGISTER(iot, ioh, 2044 IOPB_TICKLE, ADW_TICKLE_A); 2045 if (sc->chip_type == ADW_CHIP_ASC3550) { 2046 ADW_WRITE_BYTE_REGISTER(iot, ioh, 2047 IOPB_TICKLE, ADW_TICKLE_NOP); 2048 } 2049 } 2050 } 2051 2052 if (sc->async_callback != 0) { 2053 (*(ADW_ASYNC_CALLBACK)sc->async_callback)(sc, intrb_code); 2054 } 2055 } 2056 2057 /* 2058 * Check if the IRQ stopper carrier contains a completed request. 2059 */ 2060 while (((le32toh(irq_next_pa = sc->irq_sp->next_ba)) & ASC_RQ_DONE) != 0) 2061 { 2062 #if ADW_DEBUG 2063 printf("irq 0x%x, 0x%x, 0x%x, 0x%x\n", 2064 sc->irq_sp->carr_id, 2065 sc->irq_sp->carr_ba, 2066 sc->irq_sp->areq_ba, 2067 sc->irq_sp->next_ba); 2068 #endif 2069 /* 2070 * Get a pointer to the newly completed ADW_SCSI_REQ_Q 2071 * structure. 2072 * The RISC will have set 'areq_ba' to a virtual address. 2073 * 2074 * The firmware will have copied the ASC_SCSI_REQ_Q.ccb_ptr 2075 * field to the carrier ADV_CARR_T.areq_ba field. 2076 * The conversion below complements the conversion of 2077 * ASC_SCSI_REQ_Q.scsiq_ptr' in AdwExeScsiQueue(). 2078 */ 2079 ccb = adw_ccb_phys_kv(sc, sc->irq_sp->areq_ba); 2080 scsiq = &ccb->scsiq; 2081 scsiq->ccb_ptr = sc->irq_sp->areq_ba; 2082 2083 /* 2084 * Request finished with good status and the queue was not 2085 * DMAed to host memory by the firmware. Set all status fields 2086 * to indicate good status. 2087 */ 2088 if ((le32toh(irq_next_pa) & ASC_RQ_GOOD) != 0) { 2089 scsiq->done_status = QD_NO_ERROR; 2090 scsiq->host_status = scsiq->scsi_status = 0; 2091 scsiq->data_cnt = 0L; 2092 } 2093 2094 /* 2095 * Advance the stopper pointer to the next carrier 2096 * ignoring the lower four bits. Free the previous 2097 * stopper carrier. 2098 */ 2099 free_carrp = sc->irq_sp; 2100 sc->irq_sp = ADW_CARRIER_VADDR(sc, ASC_GET_CARRP(irq_next_pa)); 2101 2102 free_carrp->next_ba = (sc->carr_freelist == NULL) ? 0 2103 : sc->carr_freelist->carr_ba; 2104 sc->carr_freelist = free_carrp; 2105 sc->carr_pending_cnt--; 2106 2107 /* 2108 * Clear request microcode control flag. 2109 */ 2110 scsiq->cntl = 0; 2111 2112 /* 2113 * Check Condition handling 2114 */ 2115 /* 2116 * If the command that completed was a SCSI INQUIRY and 2117 * LUN 0 was sent the command, then process the INQUIRY 2118 * command information for the device. 2119 */ 2120 if (scsiq->done_status == QD_NO_ERROR && 2121 scsiq->cdb[0] == INQUIRY && 2122 scsiq->target_lun == 0) { 2123 AdwInquiryHandling(sc, scsiq); 2124 } 2125 2126 /* 2127 * Notify the driver of the completed request by passing 2128 * the ADW_SCSI_REQ_Q pointer to its callback function. 2129 */ 2130 (*(ADW_ISR_CALLBACK)sc->isr_callback)(sc, scsiq); 2131 /* 2132 * Note: After the driver callback function is called, 'scsiq' 2133 * can no longer be referenced. 2134 * 2135 * Fall through and continue processing other completed 2136 * requests... 2137 */ 2138 } 2139 2140 splx(s); 2141 2142 return ADW_TRUE; 2143 } 2144 2145 2146 /* 2147 * Send an idle command to the chip and wait for completion. 2148 * 2149 * Command completion is polled for once per microsecond. 2150 * 2151 * The function can be called from anywhere including an interrupt handler. 2152 * But the function is not re-entrant, so it uses the splbio/splx() 2153 * functions to prevent reentrancy. 2154 * 2155 * Return Values: 2156 * ADW_TRUE - command completed successfully 2157 * ADW_FALSE - command failed 2158 * ADW_ERROR - command timed out 2159 */ 2160 int 2161 AdwSendIdleCmd(sc, idle_cmd, idle_cmd_parameter) 2162 ADW_SOFTC *sc; 2163 u_int16_t idle_cmd; 2164 u_int32_t idle_cmd_parameter; 2165 { 2166 bus_space_tag_t iot = sc->sc_iot; 2167 bus_space_handle_t ioh = sc->sc_ioh; 2168 u_int16_t result; 2169 u_int32_t i, j, s; 2170 2171 s = splbio(); 2172 2173 /* 2174 * Clear the idle command status which is set by the microcode 2175 * to a non-zero value to indicate when the command is completed. 2176 */ 2177 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_IDLE_CMD_STATUS, (u_int16_t) 0); 2178 2179 /* 2180 * Write the idle command value after the idle command parameter 2181 * has been written to avoid a race condition. If the order is not 2182 * followed, the microcode may process the idle command before the 2183 * parameters have been written to LRAM. 2184 */ 2185 ADW_WRITE_DWORD_LRAM(iot, ioh, ADW_MC_IDLE_CMD_PARAMETER, 2186 idle_cmd_parameter); 2187 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_IDLE_CMD, idle_cmd); 2188 2189 /* 2190 * Tickle the RISC to tell it to process the idle command. 2191 */ 2192 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_TICKLE, ADW_TICKLE_B); 2193 if (sc->chip_type == ADW_CHIP_ASC3550) { 2194 /* 2195 * Clear the tickle value. In the ASC-3550 the RISC flag 2196 * command 'clr_tickle_b' does not work unless the host 2197 * value is cleared. 2198 */ 2199 ADW_WRITE_BYTE_REGISTER(iot, ioh, IOPB_TICKLE, ADW_TICKLE_NOP); 2200 } 2201 2202 /* Wait for up to 100 millisecond for the idle command to timeout. */ 2203 for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { 2204 /* Poll once each microsecond for command completion. */ 2205 for (j = 0; j < SCSI_US_PER_MSEC; j++) { 2206 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_IDLE_CMD_STATUS, 2207 result); 2208 if (result != 0) { 2209 splx(s); 2210 return result; 2211 } 2212 AdwDelayMicroSecond(1); 2213 } 2214 } 2215 2216 splx(s); 2217 return ADW_ERROR; 2218 } 2219 2220 2221 /* 2222 * Inquiry Information Byte 7 Handling 2223 * 2224 * Handle SCSI Inquiry Command information for a device by setting 2225 * microcode operating variables that affect WDTR, SDTR, and Tag 2226 * Queuing. 2227 */ 2228 static void 2229 AdwInquiryHandling(sc, scsiq) 2230 ADW_SOFTC *sc; 2231 ADW_SCSI_REQ_Q *scsiq; 2232 { 2233 #ifndef FAILSAFE 2234 bus_space_tag_t iot = sc->sc_iot; 2235 bus_space_handle_t ioh = sc->sc_ioh; 2236 u_int8_t tid; 2237 struct scsipi_inquiry_data *inq; 2238 u_int16_t tidmask; 2239 u_int16_t cfg_word; 2240 2241 2242 /* 2243 * AdwInquiryHandling() requires up to INQUIRY information Byte 7 2244 * to be available. 2245 * 2246 * If less than 8 bytes of INQUIRY information were requested or less 2247 * than 8 bytes were transferred, then return. cdb[4] is the request 2248 * length and the ADW_SCSI_REQ_Q 'data_cnt' field is set by the 2249 * microcode to the transfer residual count. 2250 */ 2251 2252 if (scsiq->cdb[4] < 8 || (scsiq->cdb[4] - scsiq->data_cnt) < 8) { 2253 return; 2254 } 2255 2256 tid = scsiq->target_id; 2257 2258 inq = (struct scsipi_inquiry_data *) scsiq->vdata_addr; 2259 2260 /* 2261 * WDTR, SDTR, and Tag Queuing cannot be enabled for old devices. 2262 */ 2263 if (((inq->response_format & SID_RespDataFmt) < 2) /*SCSI-1 | CCS*/ && 2264 ((inq->version & SID_ANSII) < 2)) { 2265 return; 2266 } else { 2267 /* 2268 * INQUIRY Byte 7 Handling 2269 * 2270 * Use a device's INQUIRY byte 7 to determine whether it 2271 * supports WDTR, SDTR, and Tag Queuing. If the feature 2272 * is enabled in the EEPROM and the device supports the 2273 * feature, then enable it in the microcode. 2274 */ 2275 2276 tidmask = ADW_TID_TO_TIDMASK(tid); 2277 2278 /* 2279 * Wide Transfers 2280 * 2281 * If the EEPROM enabled WDTR for the device and the device 2282 * supports wide bus (16 bit) transfers, then turn on the 2283 * device's 'wdtr_able' bit and write the new value to the 2284 * microcode. 2285 */ 2286 #ifdef SCSI_ADW_WDTR_DISABLE 2287 if(!(tidmask & SCSI_ADW_WDTR_DISABLE)) 2288 #endif /* SCSI_ADW_WDTR_DISABLE */ 2289 if ((sc->wdtr_able & tidmask) && (inq->flags3 & SID_WBus16)) { 2290 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, 2291 cfg_word); 2292 if ((cfg_word & tidmask) == 0) { 2293 cfg_word |= tidmask; 2294 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_WDTR_ABLE, 2295 cfg_word); 2296 2297 /* 2298 * Clear the microcode "SDTR negotiation" and 2299 * "WDTR negotiation" done indicators for the 2300 * target to cause it to negotiate with the new 2301 * setting set above. 2302 * WDTR when accepted causes the target to enter 2303 * asynchronous mode, so SDTR must be negotiated 2304 */ 2305 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_SDTR_DONE, 2306 cfg_word); 2307 cfg_word &= ~tidmask; 2308 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_DONE, 2309 cfg_word); 2310 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_WDTR_DONE, 2311 cfg_word); 2312 cfg_word &= ~tidmask; 2313 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_WDTR_DONE, 2314 cfg_word); 2315 } 2316 } 2317 2318 /* 2319 * Synchronous Transfers 2320 * 2321 * If the EEPROM enabled SDTR for the device and the device 2322 * supports synchronous transfers, then turn on the device's 2323 * 'sdtr_able' bit. Write the new value to the microcode. 2324 */ 2325 #ifdef SCSI_ADW_SDTR_DISABLE 2326 if(!(tidmask & SCSI_ADW_SDTR_DISABLE)) 2327 #endif /* SCSI_ADW_SDTR_DISABLE */ 2328 if ((sc->sdtr_able & tidmask) && (inq->flags3 & SID_Sync)) { 2329 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE,cfg_word); 2330 if ((cfg_word & tidmask) == 0) { 2331 cfg_word |= tidmask; 2332 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_ABLE, 2333 cfg_word); 2334 2335 /* 2336 * Clear the microcode "SDTR negotiation" 2337 * done indicator for the target to cause it 2338 * to negotiate with the new setting set above. 2339 */ 2340 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_SDTR_DONE, 2341 cfg_word); 2342 cfg_word &= ~tidmask; 2343 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_SDTR_DONE, 2344 cfg_word); 2345 } 2346 } 2347 /* 2348 * If the Inquiry data included enough space for the SPI-3 2349 * Clocking field, then check if DT mode is supported. 2350 */ 2351 if (sc->chip_type == ADW_CHIP_ASC38C1600 && 2352 (scsiq->cdb[4] >= 57 || 2353 (scsiq->cdb[4] - scsiq->data_cnt) >= 57)) { 2354 /* 2355 * PPR (Parallel Protocol Request) Capable 2356 * 2357 * If the device supports DT mode, then it must be 2358 * PPR capable. 2359 * The PPR message will be used in place of the SDTR 2360 * and WDTR messages to negotiate synchronous speed 2361 * and offset, transfer width, and protocol options. 2362 */ 2363 if((inq->flags4 & SID_Clocking) & SID_CLOCKING_DT_ONLY){ 2364 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_PPR_ABLE, 2365 sc->ppr_able); 2366 sc->ppr_able |= tidmask; 2367 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_PPR_ABLE, 2368 sc->ppr_able); 2369 } 2370 } 2371 2372 /* 2373 * If the EEPROM enabled Tag Queuing for the device and the 2374 * device supports Tag Queueing, then turn on the device's 2375 * 'tagqng_enable' bit in the microcode and set the microcode 2376 * maximum command count to the ADV_DVC_VAR 'max_dvc_qng' 2377 * value. 2378 * 2379 * Tag Queuing is disabled for the BIOS which runs in polled 2380 * mode and would see no benefit from Tag Queuing. Also by 2381 * disabling Tag Queuing in the BIOS devices with Tag Queuing 2382 * bugs will at least work with the BIOS. 2383 */ 2384 #ifdef SCSI_ADW_TAGQ_DISABLE 2385 if(!(tidmask & SCSI_ADW_TAGQ_DISABLE)) 2386 #endif /* SCSI_ADW_TAGQ_DISABLE */ 2387 if ((sc->tagqng_able & tidmask) && (inq->flags3 & SID_CmdQue)) { 2388 ADW_READ_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, 2389 cfg_word); 2390 cfg_word |= tidmask; 2391 ADW_WRITE_WORD_LRAM(iot, ioh, ADW_MC_TAGQNG_ABLE, 2392 cfg_word); 2393 2394 ADW_WRITE_BYTE_LRAM(iot, ioh, 2395 ADW_MC_NUMBER_OF_MAX_CMD + tid, 2396 sc->max_dvc_qng); 2397 } 2398 } 2399 #endif /* FAILSAFE */ 2400 } 2401 2402 2403 static void 2404 AdwSleepMilliSecond(n) 2405 u_int32_t n; 2406 { 2407 2408 DELAY(n * 1000); 2409 } 2410 2411 2412 static void 2413 AdwDelayMicroSecond(n) 2414 u_int32_t n; 2415 { 2416 2417 DELAY(n); 2418 } 2419 2420
Indexes created Tue Sep 23 07:09:52 GMT 2025