1 /* aha152x.c -- Adaptec AHA-152x driver 2 * Author: Jürgen E. Fischer, fischer@norbit.de 3 * Copyright 1993-2004 Jürgen E. Fischer 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the 7 * Free Software Foundation; either version 2, or (at your option) any 8 * later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 * 15 * 16 * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $ 17 * 18 * $Log: aha152x.c,v $ 19 * Revision 2.7 2004/01/24 11:42:59 fischer 20 * - gather code that is not used by PCMCIA at the end 21 * - move request_region for !PCMCIA case to detection 22 * - migration to new scsi host api (remove legacy code) 23 * - free host scribble before scsi_done 24 * - fix error handling 25 * - one isapnp device added to id_table 26 * 27 * Revision 2.6 2003/10/30 20:52:47 fischer 28 * - interfaces changes for kernel 2.6 29 * - aha152x_probe_one introduced for pcmcia stub 30 * - fixed pnpdev handling 31 * - instead of allocation a new one, reuse command for request sense after check condition and reset 32 * - fixes race in is_complete 33 * 34 * Revision 2.5 2002/04/14 11:24:53 fischer 35 * - isapnp support 36 * - abort fixed 37 * - 2.5 support 38 * 39 * Revision 2.4 2000/12/16 12:53:56 fischer 40 * - allow REQUEST SENSE to be queued 41 * - handle shared PCI interrupts 42 * 43 * Revision 2.3 2000/11/04 16:40:26 fischer 44 * - handle data overruns 45 * - extend timeout for data phases 46 * 47 * Revision 2.2 2000/08/08 19:54:53 fischer 48 * - minor changes 49 * 50 * Revision 2.1 2000/05/17 16:23:17 fischer 51 * - signature update 52 * - fix for data out w/o scatter gather 53 * 54 * Revision 2.0 1999/12/25 15:07:32 fischer 55 * - interrupt routine completly reworked 56 * - basic support for new eh code 57 * 58 * Revision 1.21 1999/11/10 23:46:36 fischer 59 * - default to synchronous operation 60 * - synchronous negotiation fixed 61 * - added timeout to loops 62 * - debugging output can be controlled through procfs 63 * 64 * Revision 1.20 1999/11/07 18:37:31 fischer 65 * - synchronous operation works 66 * - resid support for sg driver 67 * 68 * Revision 1.19 1999/11/02 22:39:59 fischer 69 * - moved leading comments to README.aha152x 70 * - new additional module parameters 71 * - updates for 2.3 72 * - support for the Tripace TC1550 controller 73 * - interrupt handling changed 74 * 75 * Revision 1.18 1996/09/07 20:10:40 fischer 76 * - fixed can_queue handling (multiple outstanding commands working again) 77 * 78 * Revision 1.17 1996/08/17 16:05:14 fischer 79 * - biosparam improved 80 * - interrupt verification 81 * - updated documentation 82 * - cleanups 83 * 84 * Revision 1.16 1996/06/09 00:04:56 root 85 * - added configuration symbols for insmod (aha152x/aha152x1) 86 * 87 * Revision 1.15 1996/04/30 14:52:06 fischer 88 * - proc info fixed 89 * - support for extended translation for >1GB disks 90 * 91 * Revision 1.14 1996/01/17 15:11:20 fischer 92 * - fixed lockup in MESSAGE IN phase after reconnection 93 * 94 * Revision 1.13 1996/01/09 02:15:53 fischer 95 * - some cleanups 96 * - moved request_irq behind controller initialization 97 * (to avoid spurious interrupts) 98 * 99 * Revision 1.12 1995/12/16 12:26:07 fischer 100 * - barrier()s added 101 * - configurable RESET delay added 102 * 103 * Revision 1.11 1995/12/06 21:18:35 fischer 104 * - some minor updates 105 * 106 * Revision 1.10 1995/07/22 19:18:45 fischer 107 * - support for 2 controllers 108 * - started synchronous data transfers (not working yet) 109 * 110 * Revision 1.9 1995/03/18 09:20:24 root 111 * - patches for PCMCIA and modules 112 * 113 * Revision 1.8 1995/01/21 22:07:19 root 114 * - snarf_region => request_region 115 * - aha152x_intr interface change 116 * 117 * Revision 1.7 1995/01/02 23:19:36 root 118 * - updated COMMAND_SIZE to cmd_len 119 * - changed sti() to restore_flags() 120 * - fixed some #ifdef which generated warnings 121 * 122 * Revision 1.6 1994/11/24 20:35:27 root 123 * - problem with odd number of bytes in fifo fixed 124 * 125 * Revision 1.5 1994/10/30 14:39:56 root 126 * - abort code fixed 127 * - debugging improved 128 * 129 * Revision 1.4 1994/09/12 11:33:01 root 130 * - irqaction to request_irq 131 * - abortion updated 132 * 133 * Revision 1.3 1994/08/04 13:53:05 root 134 * - updates for mid-level-driver changes 135 * - accept unexpected BUSFREE phase as error condition 136 * - parity check now configurable 137 * 138 * Revision 1.2 1994/07/03 12:56:36 root 139 * - cleaned up debugging code 140 * - more tweaking on reset delays 141 * - updated abort/reset code (pretty untested...) 142 * 143 * Revision 1.1 1994/05/28 21:18:49 root 144 * - update for mid-level interface change (abort-reset) 145 * - delays after resets adjusted for some slow devices 146 * 147 * Revision 1.0 1994/03/25 12:52:00 root 148 * - Fixed "more data than expected" problem 149 * - added new BIOS signatures 150 * 151 * Revision 0.102 1994/01/31 20:44:12 root 152 * - minor changes in insw/outsw handling 153 * 154 * Revision 0.101 1993/12/13 01:16:27 root 155 * - fixed STATUS phase (non-GOOD stati were dropped sometimes; 156 * fixes problems with CD-ROM sector size detection & media change) 157 * 158 * Revision 0.100 1993/12/10 16:58:47 root 159 * - fix for unsuccessful selections in case of non-continuous id assignments 160 * on the scsi bus. 161 * 162 * Revision 0.99 1993/10/24 16:19:59 root 163 * - fixed DATA IN (rare read errors gone) 164 * 165 * Revision 0.98 1993/10/17 12:54:44 root 166 * - fixed some recent fixes (shame on me) 167 * - moved initialization of scratch area to aha152x_queue 168 * 169 * Revision 0.97 1993/10/09 18:53:53 root 170 * - DATA IN fixed. Rarely left data in the fifo. 171 * 172 * Revision 0.96 1993/10/03 00:53:59 root 173 * - minor changes on DATA IN 174 * 175 * Revision 0.95 1993/09/24 10:36:01 root 176 * - change handling of MSGI after reselection 177 * - fixed sti/cli 178 * - minor changes 179 * 180 * Revision 0.94 1993/09/18 14:08:22 root 181 * - fixed bug in multiple outstanding command code 182 * - changed detection 183 * - support for kernel command line configuration 184 * - reset corrected 185 * - changed message handling 186 * 187 * Revision 0.93 1993/09/15 20:41:19 root 188 * - fixed bugs with multiple outstanding commands 189 * 190 * Revision 0.92 1993/09/13 02:46:33 root 191 * - multiple outstanding commands work (no problems with IBM drive) 192 * 193 * Revision 0.91 1993/09/12 20:51:46 root 194 * added multiple outstanding commands 195 * (some problem with this $%&? IBM device remain) 196 * 197 * Revision 0.9 1993/09/12 11:11:22 root 198 * - corrected auto-configuration 199 * - changed the auto-configuration (added some '#define's) 200 * - added support for dis-/reconnection 201 * 202 * Revision 0.8 1993/09/06 23:09:39 root 203 * - added support for the drive activity light 204 * - minor changes 205 * 206 * Revision 0.7 1993/09/05 14:30:15 root 207 * - improved phase detection 208 * - now using the new snarf_region code of 0.99pl13 209 * 210 * Revision 0.6 1993/09/02 11:01:38 root 211 * first public release; added some signatures and biosparam() 212 * 213 * Revision 0.5 1993/08/30 10:23:30 root 214 * fixed timing problems with my IBM drive 215 * 216 * Revision 0.4 1993/08/29 14:06:52 root 217 * fixed some problems with timeouts due incomplete commands 218 * 219 * Revision 0.3 1993/08/28 15:55:03 root 220 * writing data works too. mounted and worked on a dos partition 221 * 222 * Revision 0.2 1993/08/27 22:42:07 root 223 * reading data works. Mounted a msdos partition. 224 * 225 * Revision 0.1 1993/08/25 13:38:30 root 226 * first "damn thing doesn't work" version 227 * 228 * Revision 0.0 1993/08/14 19:54:25 root 229 * empty function bodies; detect() works. 230 * 231 * 232 ************************************************************************** 233 234 see Documentation/scsi/aha152x.txt for configuration details 235 236 **************************************************************************/ 237 238 #include <linux/module.h> 239 #include <asm/irq.h> 240 #include <linux/io.h> 241 #include <linux/blkdev.h> 242 #include <linux/completion.h> 243 #include <linux/errno.h> 244 #include <linux/string.h> 245 #include <linux/wait.h> 246 #include <linux/ioport.h> 247 #include <linux/delay.h> 248 #include <linux/proc_fs.h> 249 #include <linux/interrupt.h> 250 #include <linux/init.h> 251 #include <linux/kernel.h> 252 #include <linux/isapnp.h> 253 #include <linux/spinlock.h> 254 #include <linux/workqueue.h> 255 #include <linux/list.h> 256 #include <linux/slab.h> 257 #include <scsi/scsicam.h> 258 259 #include "scsi.h" 260 #include <scsi/scsi_dbg.h> 261 #include <scsi/scsi_host.h> 262 #include <scsi/scsi_transport_spi.h> 263 #include <scsi/scsi_eh.h> 264 #include "aha152x.h" 265 266 static LIST_HEAD(aha152x_host_list); 267 268 269 /* DEFINES */ 270 271 /* For PCMCIA cards, always use AUTOCONF */ 272 #if defined(PCMCIA) || defined(MODULE) 273 #if !defined(AUTOCONF) 274 #define AUTOCONF 275 #endif 276 #endif 277 278 #if !defined(AUTOCONF) && !defined(SETUP0) 279 #error define AUTOCONF or SETUP0 280 #endif 281 282 #define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags) 283 #define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags) 284 285 #define LEAD "(scsi%d:%d:%d) " 286 #define INFO_LEAD KERN_INFO LEAD 287 #define CMDINFO(cmd) \ 288 (cmd) ? ((cmd)->device->host->host_no) : -1, \ 289 (cmd) ? ((cmd)->device->id & 0x0f) : -1, \ 290 (cmd) ? ((u8)(cmd)->device->lun & 0x07) : -1 291 292 static inline void 293 CMD_INC_RESID(struct scsi_cmnd *cmd, int inc) 294 { 295 scsi_set_resid(cmd, scsi_get_resid(cmd) + inc); 296 } 297 298 #define DELAY_DEFAULT 1000 299 300 #if defined(PCMCIA) 301 #define IRQ_MIN 0 302 #define IRQ_MAX 16 303 #else 304 #define IRQ_MIN 9 305 #if defined(__PPC) 306 #define IRQ_MAX (nr_irqs-1) 307 #else 308 #define IRQ_MAX 12 309 #endif 310 #endif 311 312 enum { 313 not_issued = 0x0001, /* command not yet issued */ 314 selecting = 0x0002, /* target is being selected */ 315 identified = 0x0004, /* IDENTIFY was sent */ 316 disconnected = 0x0008, /* target disconnected */ 317 completed = 0x0010, /* target sent COMMAND COMPLETE */ 318 aborted = 0x0020, /* ABORT was sent */ 319 resetted = 0x0040, /* BUS DEVICE RESET was sent */ 320 spiordy = 0x0080, /* waiting for SPIORDY to raise */ 321 syncneg = 0x0100, /* synchronous negotiation in progress */ 322 aborting = 0x0200, /* ABORT is pending */ 323 resetting = 0x0400, /* BUS DEVICE RESET is pending */ 324 check_condition = 0x0800, /* requesting sense after CHECK CONDITION */ 325 }; 326 327 MODULE_AUTHOR("Jürgen Fischer"); 328 MODULE_DESCRIPTION(AHA152X_REVID); 329 MODULE_LICENSE("GPL"); 330 331 #if !defined(PCMCIA) 332 #if defined(MODULE) 333 static int io[] = {0, 0}; 334 module_param_array(io, int, NULL, 0); 335 MODULE_PARM_DESC(io,"base io address of controller"); 336 337 static int irq[] = {0, 0}; 338 module_param_array(irq, int, NULL, 0); 339 MODULE_PARM_DESC(irq,"interrupt for controller"); 340 341 static int scsiid[] = {7, 7}; 342 module_param_array(scsiid, int, NULL, 0); 343 MODULE_PARM_DESC(scsiid,"scsi id of controller"); 344 345 static int reconnect[] = {1, 1}; 346 module_param_array(reconnect, int, NULL, 0); 347 MODULE_PARM_DESC(reconnect,"allow targets to disconnect"); 348 349 static int parity[] = {1, 1}; 350 module_param_array(parity, int, NULL, 0); 351 MODULE_PARM_DESC(parity,"use scsi parity"); 352 353 static int sync[] = {1, 1}; 354 module_param_array(sync, int, NULL, 0); 355 MODULE_PARM_DESC(sync,"use synchronous transfers"); 356 357 static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT}; 358 module_param_array(delay, int, NULL, 0); 359 MODULE_PARM_DESC(delay,"scsi reset delay"); 360 361 static int exttrans[] = {0, 0}; 362 module_param_array(exttrans, int, NULL, 0); 363 MODULE_PARM_DESC(exttrans,"use extended translation"); 364 365 static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; 366 module_param_array(aha152x, int, NULL, 0); 367 MODULE_PARM_DESC(aha152x, "parameters for first controller"); 368 369 static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; 370 module_param_array(aha152x1, int, NULL, 0); 371 MODULE_PARM_DESC(aha152x1, "parameters for second controller"); 372 #endif /* MODULE */ 373 374 #ifdef __ISAPNP__ 375 static struct isapnp_device_id id_table[] = { 376 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 }, 377 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 }, 378 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 }, 379 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 }, 380 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 }, 381 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 }, 382 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 }, 383 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 }, 384 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 }, 385 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 }, 386 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 }, 387 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 }, 388 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 }, 389 { ISAPNP_DEVICE_SINGLE_END, } 390 }; 391 MODULE_DEVICE_TABLE(isapnp, id_table); 392 #endif /* ISAPNP */ 393 394 #endif /* !PCMCIA */ 395 396 static struct scsi_host_template aha152x_driver_template; 397 398 /* 399 * internal states of the host 400 * 401 */ 402 enum aha152x_state { 403 idle=0, 404 unknown, 405 seldo, 406 seldi, 407 selto, 408 busfree, 409 msgo, 410 cmd, 411 msgi, 412 status, 413 datai, 414 datao, 415 parerr, 416 rsti, 417 maxstate 418 }; 419 420 /* 421 * current state information of the host 422 * 423 */ 424 struct aha152x_hostdata { 425 Scsi_Cmnd *issue_SC; 426 /* pending commands to issue */ 427 428 Scsi_Cmnd *current_SC; 429 /* current command on the bus */ 430 431 Scsi_Cmnd *disconnected_SC; 432 /* commands that disconnected */ 433 434 Scsi_Cmnd *done_SC; 435 /* command that was completed */ 436 437 spinlock_t lock; 438 /* host lock */ 439 440 #if defined(AHA152X_STAT) 441 int total_commands; 442 int disconnections; 443 int busfree_without_any_action; 444 int busfree_without_old_command; 445 int busfree_without_new_command; 446 int busfree_without_done_command; 447 int busfree_with_check_condition; 448 int count[maxstate]; 449 int count_trans[maxstate]; 450 unsigned long time[maxstate]; 451 #endif 452 453 int commands; /* current number of commands */ 454 455 int reconnect; /* disconnection allowed */ 456 int parity; /* parity checking enabled */ 457 int synchronous; /* synchronous transferes enabled */ 458 int delay; /* reset out delay */ 459 int ext_trans; /* extended translation enabled */ 460 461 int swint; /* software-interrupt was fired during detect() */ 462 int service; /* bh needs to be run */ 463 int in_intr; /* bh is running */ 464 465 /* current state, 466 previous state, 467 last state different from current state */ 468 enum aha152x_state state, prevstate, laststate; 469 470 int target; 471 /* reconnecting target */ 472 473 unsigned char syncrate[8]; 474 /* current synchronous transfer agreements */ 475 476 unsigned char syncneg[8]; 477 /* 0: no negotiation; 478 * 1: negotiation in progress; 479 * 2: negotiation completed 480 */ 481 482 int cmd_i; 483 /* number of sent bytes of current command */ 484 485 int msgi_len; 486 /* number of received message bytes */ 487 unsigned char msgi[256]; 488 /* received message bytes */ 489 490 int msgo_i, msgo_len; 491 /* number of sent bytes and length of current messages */ 492 unsigned char msgo[256]; 493 /* pending messages */ 494 495 int data_len; 496 /* number of sent/received bytes in dataphase */ 497 498 unsigned long io_port0; 499 unsigned long io_port1; 500 501 #ifdef __ISAPNP__ 502 struct pnp_dev *pnpdev; 503 #endif 504 struct list_head host_list; 505 }; 506 507 508 /* 509 * host specific command extension 510 * 511 */ 512 struct aha152x_scdata { 513 Scsi_Cmnd *next; /* next sc in queue */ 514 struct completion *done;/* semaphore to block on */ 515 struct scsi_eh_save ses; 516 }; 517 518 /* access macros for hostdata */ 519 520 #define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata) 521 522 #define HOSTNO ((shpnt)->host_no) 523 524 #define CURRENT_SC (HOSTDATA(shpnt)->current_SC) 525 #define DONE_SC (HOSTDATA(shpnt)->done_SC) 526 #define ISSUE_SC (HOSTDATA(shpnt)->issue_SC) 527 #define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC) 528 #define QLOCK (HOSTDATA(shpnt)->lock) 529 #define QLOCKER (HOSTDATA(shpnt)->locker) 530 #define QLOCKERL (HOSTDATA(shpnt)->lockerl) 531 532 #define STATE (HOSTDATA(shpnt)->state) 533 #define PREVSTATE (HOSTDATA(shpnt)->prevstate) 534 #define LASTSTATE (HOSTDATA(shpnt)->laststate) 535 536 #define RECONN_TARGET (HOSTDATA(shpnt)->target) 537 538 #define CMD_I (HOSTDATA(shpnt)->cmd_i) 539 540 #define MSGO(i) (HOSTDATA(shpnt)->msgo[i]) 541 #define MSGO_I (HOSTDATA(shpnt)->msgo_i) 542 #define MSGOLEN (HOSTDATA(shpnt)->msgo_len) 543 #define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow")) 544 545 #define MSGI(i) (HOSTDATA(shpnt)->msgi[i]) 546 #define MSGILEN (HOSTDATA(shpnt)->msgi_len) 547 #define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow")) 548 549 #define DATA_LEN (HOSTDATA(shpnt)->data_len) 550 551 #define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id]) 552 #define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id]) 553 554 #define DELAY (HOSTDATA(shpnt)->delay) 555 #define EXT_TRANS (HOSTDATA(shpnt)->ext_trans) 556 #define TC1550 (HOSTDATA(shpnt)->tc1550) 557 #define RECONNECT (HOSTDATA(shpnt)->reconnect) 558 #define PARITY (HOSTDATA(shpnt)->parity) 559 #define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous) 560 561 #define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0) 562 #define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1) 563 564 #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble) 565 #define SCNEXT(SCpnt) SCDATA(SCpnt)->next 566 #define SCSEM(SCpnt) SCDATA(SCpnt)->done 567 568 #define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) 569 570 /* state handling */ 571 static void seldi_run(struct Scsi_Host *shpnt); 572 static void seldo_run(struct Scsi_Host *shpnt); 573 static void selto_run(struct Scsi_Host *shpnt); 574 static void busfree_run(struct Scsi_Host *shpnt); 575 576 static void msgo_init(struct Scsi_Host *shpnt); 577 static void msgo_run(struct Scsi_Host *shpnt); 578 static void msgo_end(struct Scsi_Host *shpnt); 579 580 static void cmd_init(struct Scsi_Host *shpnt); 581 static void cmd_run(struct Scsi_Host *shpnt); 582 static void cmd_end(struct Scsi_Host *shpnt); 583 584 static void datai_init(struct Scsi_Host *shpnt); 585 static void datai_run(struct Scsi_Host *shpnt); 586 static void datai_end(struct Scsi_Host *shpnt); 587 588 static void datao_init(struct Scsi_Host *shpnt); 589 static void datao_run(struct Scsi_Host *shpnt); 590 static void datao_end(struct Scsi_Host *shpnt); 591 592 static void status_run(struct Scsi_Host *shpnt); 593 594 static void msgi_run(struct Scsi_Host *shpnt); 595 static void msgi_end(struct Scsi_Host *shpnt); 596 597 static void parerr_run(struct Scsi_Host *shpnt); 598 static void rsti_run(struct Scsi_Host *shpnt); 599 600 static void is_complete(struct Scsi_Host *shpnt); 601 602 /* 603 * driver states 604 * 605 */ 606 static struct { 607 char *name; 608 void (*init)(struct Scsi_Host *); 609 void (*run)(struct Scsi_Host *); 610 void (*end)(struct Scsi_Host *); 611 int spio; 612 } states[] = { 613 { "idle", NULL, NULL, NULL, 0}, 614 { "unknown", NULL, NULL, NULL, 0}, 615 { "seldo", NULL, seldo_run, NULL, 0}, 616 { "seldi", NULL, seldi_run, NULL, 0}, 617 { "selto", NULL, selto_run, NULL, 0}, 618 { "busfree", NULL, busfree_run, NULL, 0}, 619 { "msgo", msgo_init, msgo_run, msgo_end, 1}, 620 { "cmd", cmd_init, cmd_run, cmd_end, 1}, 621 { "msgi", NULL, msgi_run, msgi_end, 1}, 622 { "status", NULL, status_run, NULL, 1}, 623 { "datai", datai_init, datai_run, datai_end, 0}, 624 { "datao", datao_init, datao_run, datao_end, 0}, 625 { "parerr", NULL, parerr_run, NULL, 0}, 626 { "rsti", NULL, rsti_run, NULL, 0}, 627 }; 628 629 /* setup & interrupt */ 630 static irqreturn_t intr(int irq, void *dev_id); 631 static void reset_ports(struct Scsi_Host *shpnt); 632 static void aha152x_error(struct Scsi_Host *shpnt, char *msg); 633 static void done(struct Scsi_Host *shpnt, int error); 634 635 /* diagnostics */ 636 static void show_command(Scsi_Cmnd * ptr); 637 static void show_queues(struct Scsi_Host *shpnt); 638 static void disp_enintr(struct Scsi_Host *shpnt); 639 640 641 /* 642 * queue services: 643 * 644 */ 645 static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC) 646 { 647 Scsi_Cmnd *end; 648 649 SCNEXT(new_SC) = NULL; 650 if (!*SC) 651 *SC = new_SC; 652 else { 653 for (end = *SC; SCNEXT(end); end = SCNEXT(end)) 654 ; 655 SCNEXT(end) = new_SC; 656 } 657 } 658 659 static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC) 660 { 661 Scsi_Cmnd *ptr; 662 663 ptr = *SC; 664 if (ptr) { 665 *SC = SCNEXT(*SC); 666 SCNEXT(ptr)=NULL; 667 } 668 return ptr; 669 } 670 671 static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun) 672 { 673 Scsi_Cmnd *ptr, *prev; 674 675 for (ptr = *SC, prev = NULL; 676 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun)); 677 prev = ptr, ptr = SCNEXT(ptr)) 678 ; 679 680 if (ptr) { 681 if (prev) 682 SCNEXT(prev) = SCNEXT(ptr); 683 else 684 *SC = SCNEXT(ptr); 685 686 SCNEXT(ptr)=NULL; 687 } 688 689 return ptr; 690 } 691 692 static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp) 693 { 694 Scsi_Cmnd *ptr, *prev; 695 696 for (ptr = *SC, prev = NULL; 697 ptr && SCp!=ptr; 698 prev = ptr, ptr = SCNEXT(ptr)) 699 ; 700 701 if (ptr) { 702 if (prev) 703 SCNEXT(prev) = SCNEXT(ptr); 704 else 705 *SC = SCNEXT(ptr); 706 707 SCNEXT(ptr)=NULL; 708 } 709 710 return ptr; 711 } 712 713 static irqreturn_t swintr(int irqno, void *dev_id) 714 { 715 struct Scsi_Host *shpnt = dev_id; 716 717 HOSTDATA(shpnt)->swint++; 718 719 SETPORT(DMACNTRL0, INTEN); 720 return IRQ_HANDLED; 721 } 722 723 struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup) 724 { 725 struct Scsi_Host *shpnt; 726 727 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata)); 728 if (!shpnt) { 729 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n"); 730 return NULL; 731 } 732 733 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt)); 734 INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list); 735 736 /* need to have host registered before triggering any interrupt */ 737 list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list); 738 739 shpnt->io_port = setup->io_port; 740 shpnt->n_io_port = IO_RANGE; 741 shpnt->irq = setup->irq; 742 743 if (!setup->tc1550) { 744 HOSTIOPORT0 = setup->io_port; 745 HOSTIOPORT1 = setup->io_port; 746 } else { 747 HOSTIOPORT0 = setup->io_port+0x10; 748 HOSTIOPORT1 = setup->io_port-0x10; 749 } 750 751 spin_lock_init(&QLOCK); 752 RECONNECT = setup->reconnect; 753 SYNCHRONOUS = setup->synchronous; 754 PARITY = setup->parity; 755 DELAY = setup->delay; 756 EXT_TRANS = setup->ext_trans; 757 758 SETPORT(SCSIID, setup->scsiid << 4); 759 shpnt->this_id = setup->scsiid; 760 761 if (setup->reconnect) 762 shpnt->can_queue = AHA152X_MAXQUEUE; 763 764 /* RESET OUT */ 765 printk("aha152x: resetting bus...\n"); 766 SETPORT(SCSISEQ, SCSIRSTO); 767 mdelay(256); 768 SETPORT(SCSISEQ, 0); 769 mdelay(DELAY); 770 771 reset_ports(shpnt); 772 773 printk(KERN_INFO 774 "aha152x%d%s: " 775 "vital data: rev=%x, " 776 "io=0x%03lx (0x%03lx/0x%03lx), " 777 "irq=%d, " 778 "scsiid=%d, " 779 "reconnect=%s, " 780 "parity=%s, " 781 "synchronous=%s, " 782 "delay=%d, " 783 "extended translation=%s\n", 784 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "", 785 GETPORT(REV) & 0x7, 786 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1, 787 shpnt->irq, 788 shpnt->this_id, 789 RECONNECT ? "enabled" : "disabled", 790 PARITY ? "enabled" : "disabled", 791 SYNCHRONOUS ? "enabled" : "disabled", 792 DELAY, 793 EXT_TRANS ? "enabled" : "disabled"); 794 795 /* not expecting any interrupts */ 796 SETPORT(SIMODE0, 0); 797 SETPORT(SIMODE1, 0); 798 799 if (request_irq(shpnt->irq, swintr, IRQF_SHARED, "aha152x", shpnt)) { 800 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq); 801 goto out_host_put; 802 } 803 804 HOSTDATA(shpnt)->swint = 0; 805 806 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no); 807 808 mb(); 809 SETPORT(DMACNTRL0, SWINT|INTEN); 810 mdelay(1000); 811 free_irq(shpnt->irq, shpnt); 812 813 if (!HOSTDATA(shpnt)->swint) { 814 if (TESTHI(DMASTAT, INTSTAT)) { 815 printk("lost.\n"); 816 } else { 817 printk("failed.\n"); 818 } 819 820 SETPORT(DMACNTRL0, INTEN); 821 822 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. " 823 "Please verify.\n", shpnt->host_no, shpnt->irq); 824 goto out_host_put; 825 } 826 printk("ok.\n"); 827 828 829 /* clear interrupts */ 830 SETPORT(SSTAT0, 0x7f); 831 SETPORT(SSTAT1, 0xef); 832 833 if (request_irq(shpnt->irq, intr, IRQF_SHARED, "aha152x", shpnt)) { 834 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq); 835 goto out_host_put; 836 } 837 838 if( scsi_add_host(shpnt, NULL) ) { 839 free_irq(shpnt->irq, shpnt); 840 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no); 841 goto out_host_put; 842 } 843 844 scsi_scan_host(shpnt); 845 846 return shpnt; 847 848 out_host_put: 849 list_del(&HOSTDATA(shpnt)->host_list); 850 scsi_host_put(shpnt); 851 852 return NULL; 853 } 854 855 void aha152x_release(struct Scsi_Host *shpnt) 856 { 857 if (!shpnt) 858 return; 859 860 scsi_remove_host(shpnt); 861 if (shpnt->irq) 862 free_irq(shpnt->irq, shpnt); 863 864 #if !defined(PCMCIA) 865 if (shpnt->io_port) 866 release_region(shpnt->io_port, IO_RANGE); 867 #endif 868 869 #ifdef __ISAPNP__ 870 if (HOSTDATA(shpnt)->pnpdev) 871 pnp_device_detach(HOSTDATA(shpnt)->pnpdev); 872 #endif 873 874 list_del(&HOSTDATA(shpnt)->host_list); 875 scsi_host_put(shpnt); 876 } 877 878 879 /* 880 * setup controller to generate interrupts depending 881 * on current state (lock has to be acquired) 882 * 883 */ 884 static int setup_expected_interrupts(struct Scsi_Host *shpnt) 885 { 886 if(CURRENT_SC) { 887 CURRENT_SC->SCp.phase |= 1 << 16; 888 889 if(CURRENT_SC->SCp.phase & selecting) { 890 SETPORT(SSTAT1, SELTO); 891 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0)); 892 SETPORT(SIMODE1, ENSELTIMO); 893 } else { 894 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0); 895 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 896 } 897 } else if(STATE==seldi) { 898 SETPORT(SIMODE0, 0); 899 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 900 } else { 901 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0); 902 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0)); 903 } 904 905 if(!HOSTDATA(shpnt)->in_intr) 906 SETBITS(DMACNTRL0, INTEN); 907 908 return TESTHI(DMASTAT, INTSTAT); 909 } 910 911 912 /* 913 * Queue a command and setup interrupts for a free bus. 914 */ 915 static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete, 916 int phase, void (*done)(Scsi_Cmnd *)) 917 { 918 struct Scsi_Host *shpnt = SCpnt->device->host; 919 unsigned long flags; 920 921 SCpnt->scsi_done = done; 922 SCpnt->SCp.phase = not_issued | phase; 923 SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */ 924 SCpnt->SCp.Message = 0; 925 SCpnt->SCp.have_data_in = 0; 926 SCpnt->SCp.sent_command = 0; 927 928 if(SCpnt->SCp.phase & (resetting|check_condition)) { 929 if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) { 930 scmd_printk(KERN_ERR, SCpnt, "cannot reuse command\n"); 931 return FAILED; 932 } 933 } else { 934 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC); 935 if(!SCpnt->host_scribble) { 936 scmd_printk(KERN_ERR, SCpnt, "allocation failed\n"); 937 return FAILED; 938 } 939 } 940 941 SCNEXT(SCpnt) = NULL; 942 SCSEM(SCpnt) = complete; 943 944 /* setup scratch area 945 SCp.ptr : buffer pointer 946 SCp.this_residual : buffer length 947 SCp.buffer : next buffer 948 SCp.buffers_residual : left buffers in list 949 SCp.phase : current state of the command */ 950 951 if ((phase & resetting) || !scsi_sglist(SCpnt)) { 952 SCpnt->SCp.ptr = NULL; 953 SCpnt->SCp.this_residual = 0; 954 scsi_set_resid(SCpnt, 0); 955 SCpnt->SCp.buffer = NULL; 956 SCpnt->SCp.buffers_residual = 0; 957 } else { 958 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); 959 SCpnt->SCp.buffer = scsi_sglist(SCpnt); 960 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer); 961 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; 962 SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; 963 } 964 965 DO_LOCK(flags); 966 967 #if defined(AHA152X_STAT) 968 HOSTDATA(shpnt)->total_commands++; 969 #endif 970 971 /* Turn led on, when this is the first command. */ 972 HOSTDATA(shpnt)->commands++; 973 if (HOSTDATA(shpnt)->commands==1) 974 SETPORT(PORTA, 1); 975 976 append_SC(&ISSUE_SC, SCpnt); 977 978 if(!HOSTDATA(shpnt)->in_intr) 979 setup_expected_interrupts(shpnt); 980 981 DO_UNLOCK(flags); 982 983 return 0; 984 } 985 986 /* 987 * queue a command 988 * 989 */ 990 static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) 991 { 992 return aha152x_internal_queue(SCpnt, NULL, 0, done); 993 } 994 995 static DEF_SCSI_QCMD(aha152x_queue) 996 997 998 /* 999 * 1000 */ 1001 static void reset_done(Scsi_Cmnd *SCpnt) 1002 { 1003 if(SCSEM(SCpnt)) { 1004 complete(SCSEM(SCpnt)); 1005 } else { 1006 printk(KERN_ERR "aha152x: reset_done w/o completion\n"); 1007 } 1008 } 1009 1010 /* 1011 * Abort a command 1012 * 1013 */ 1014 static int aha152x_abort(Scsi_Cmnd *SCpnt) 1015 { 1016 struct Scsi_Host *shpnt = SCpnt->device->host; 1017 Scsi_Cmnd *ptr; 1018 unsigned long flags; 1019 1020 DO_LOCK(flags); 1021 1022 ptr=remove_SC(&ISSUE_SC, SCpnt); 1023 1024 if(ptr) { 1025 HOSTDATA(shpnt)->commands--; 1026 if (!HOSTDATA(shpnt)->commands) 1027 SETPORT(PORTA, 0); 1028 DO_UNLOCK(flags); 1029 1030 kfree(SCpnt->host_scribble); 1031 SCpnt->host_scribble=NULL; 1032 1033 return SUCCESS; 1034 } 1035 1036 DO_UNLOCK(flags); 1037 1038 /* 1039 * FIXME: 1040 * for current command: queue ABORT for message out and raise ATN 1041 * for disconnected command: pseudo SC with ABORT message or ABORT on reselection? 1042 * 1043 */ 1044 1045 scmd_printk(KERN_ERR, SCpnt, 1046 "cannot abort running or disconnected command\n"); 1047 1048 return FAILED; 1049 } 1050 1051 /* 1052 * Reset a device 1053 * 1054 */ 1055 static int aha152x_device_reset(Scsi_Cmnd * SCpnt) 1056 { 1057 struct Scsi_Host *shpnt = SCpnt->device->host; 1058 DECLARE_COMPLETION(done); 1059 int ret, issued, disconnected; 1060 unsigned char old_cmd_len = SCpnt->cmd_len; 1061 unsigned long flags; 1062 unsigned long timeleft; 1063 1064 if(CURRENT_SC==SCpnt) { 1065 scmd_printk(KERN_ERR, SCpnt, "cannot reset current device\n"); 1066 return FAILED; 1067 } 1068 1069 DO_LOCK(flags); 1070 issued = remove_SC(&ISSUE_SC, SCpnt) == NULL; 1071 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt); 1072 DO_UNLOCK(flags); 1073 1074 SCpnt->cmd_len = 0; 1075 1076 aha152x_internal_queue(SCpnt, &done, resetting, reset_done); 1077 1078 timeleft = wait_for_completion_timeout(&done, 100*HZ); 1079 if (!timeleft) { 1080 /* remove command from issue queue */ 1081 DO_LOCK(flags); 1082 remove_SC(&ISSUE_SC, SCpnt); 1083 DO_UNLOCK(flags); 1084 } 1085 1086 SCpnt->cmd_len = old_cmd_len; 1087 1088 DO_LOCK(flags); 1089 1090 if(SCpnt->SCp.phase & resetted) { 1091 HOSTDATA(shpnt)->commands--; 1092 if (!HOSTDATA(shpnt)->commands) 1093 SETPORT(PORTA, 0); 1094 kfree(SCpnt->host_scribble); 1095 SCpnt->host_scribble=NULL; 1096 1097 ret = SUCCESS; 1098 } else { 1099 /* requeue */ 1100 if(!issued) { 1101 append_SC(&ISSUE_SC, SCpnt); 1102 } else if(disconnected) { 1103 append_SC(&DISCONNECTED_SC, SCpnt); 1104 } 1105 1106 ret = FAILED; 1107 } 1108 1109 DO_UNLOCK(flags); 1110 return ret; 1111 } 1112 1113 static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs) 1114 { 1115 Scsi_Cmnd *ptr; 1116 1117 ptr=*SCs; 1118 while(ptr) { 1119 Scsi_Cmnd *next; 1120 1121 if(SCDATA(ptr)) { 1122 next = SCNEXT(ptr); 1123 } else { 1124 scmd_printk(KERN_DEBUG, ptr, 1125 "queue corrupted at %p\n", ptr); 1126 next = NULL; 1127 } 1128 1129 if (!ptr->device->soft_reset) { 1130 remove_SC(SCs, ptr); 1131 HOSTDATA(shpnt)->commands--; 1132 kfree(ptr->host_scribble); 1133 ptr->host_scribble=NULL; 1134 } 1135 1136 ptr = next; 1137 } 1138 } 1139 1140 /* 1141 * Reset the bus 1142 * 1143 */ 1144 static int aha152x_bus_reset_host(struct Scsi_Host *shpnt) 1145 { 1146 unsigned long flags; 1147 1148 DO_LOCK(flags); 1149 1150 free_hard_reset_SCs(shpnt, &ISSUE_SC); 1151 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC); 1152 1153 SETPORT(SCSISEQ, SCSIRSTO); 1154 mdelay(256); 1155 SETPORT(SCSISEQ, 0); 1156 mdelay(DELAY); 1157 1158 setup_expected_interrupts(shpnt); 1159 if(HOSTDATA(shpnt)->commands==0) 1160 SETPORT(PORTA, 0); 1161 1162 DO_UNLOCK(flags); 1163 1164 return SUCCESS; 1165 } 1166 1167 /* 1168 * Reset the bus 1169 * 1170 */ 1171 static int aha152x_bus_reset(Scsi_Cmnd *SCpnt) 1172 { 1173 return aha152x_bus_reset_host(SCpnt->device->host); 1174 } 1175 1176 /* 1177 * Restore default values to the AIC-6260 registers and reset the fifos 1178 * 1179 */ 1180 static void reset_ports(struct Scsi_Host *shpnt) 1181 { 1182 unsigned long flags; 1183 1184 /* disable interrupts */ 1185 SETPORT(DMACNTRL0, RSTFIFO); 1186 1187 SETPORT(SCSISEQ, 0); 1188 1189 SETPORT(SXFRCTL1, 0); 1190 SETPORT(SCSISIG, 0); 1191 SETRATE(0); 1192 1193 /* clear all interrupt conditions */ 1194 SETPORT(SSTAT0, 0x7f); 1195 SETPORT(SSTAT1, 0xef); 1196 1197 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR); 1198 1199 SETPORT(DMACNTRL0, 0); 1200 SETPORT(DMACNTRL1, 0); 1201 1202 SETPORT(BRSTCNTRL, 0xf1); 1203 1204 /* clear SCSI fifos and transfer count */ 1205 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 1206 SETPORT(SXFRCTL0, CH1); 1207 1208 DO_LOCK(flags); 1209 setup_expected_interrupts(shpnt); 1210 DO_UNLOCK(flags); 1211 } 1212 1213 /* 1214 * Reset the host (bus and controller) 1215 * 1216 */ 1217 int aha152x_host_reset_host(struct Scsi_Host *shpnt) 1218 { 1219 aha152x_bus_reset_host(shpnt); 1220 reset_ports(shpnt); 1221 1222 return SUCCESS; 1223 } 1224 1225 /* 1226 * Reset the host (bus and controller) 1227 * 1228 */ 1229 static int aha152x_host_reset(Scsi_Cmnd *SCpnt) 1230 { 1231 return aha152x_host_reset_host(SCpnt->device->host); 1232 } 1233 1234 /* 1235 * Return the "logical geometry" 1236 * 1237 */ 1238 static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev, 1239 sector_t capacity, int *info_array) 1240 { 1241 struct Scsi_Host *shpnt = sdev->host; 1242 1243 /* try default translation */ 1244 info_array[0] = 64; 1245 info_array[1] = 32; 1246 info_array[2] = (unsigned long)capacity / (64 * 32); 1247 1248 /* for disks >1GB do some guessing */ 1249 if (info_array[2] >= 1024) { 1250 int info[3]; 1251 1252 /* try to figure out the geometry from the partition table */ 1253 if (scsicam_bios_param(bdev, capacity, info) < 0 || 1254 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) { 1255 if (EXT_TRANS) { 1256 printk(KERN_NOTICE 1257 "aha152x: unable to verify geometry for disk with >1GB.\n" 1258 " using extended translation.\n"); 1259 info_array[0] = 255; 1260 info_array[1] = 63; 1261 info_array[2] = (unsigned long)capacity / (255 * 63); 1262 } else { 1263 printk(KERN_NOTICE 1264 "aha152x: unable to verify geometry for disk with >1GB.\n" 1265 " Using default translation. Please verify yourself.\n" 1266 " Perhaps you need to enable extended translation in the driver.\n" 1267 " See Documentation/scsi/aha152x.txt for details.\n"); 1268 } 1269 } else { 1270 info_array[0] = info[0]; 1271 info_array[1] = info[1]; 1272 info_array[2] = info[2]; 1273 1274 if (info[0] == 255 && !EXT_TRANS) { 1275 printk(KERN_NOTICE 1276 "aha152x: current partition table is using extended translation.\n" 1277 " using it also, although it's not explicitly enabled.\n"); 1278 } 1279 } 1280 } 1281 1282 return 0; 1283 } 1284 1285 /* 1286 * Internal done function 1287 * 1288 */ 1289 static void done(struct Scsi_Host *shpnt, int error) 1290 { 1291 if (CURRENT_SC) { 1292 if(DONE_SC) 1293 scmd_printk(KERN_ERR, CURRENT_SC, 1294 "there's already a completed command %p " 1295 "- will cause abort\n", DONE_SC); 1296 1297 DONE_SC = CURRENT_SC; 1298 CURRENT_SC = NULL; 1299 DONE_SC->result = error; 1300 } else 1301 printk(KERN_ERR "aha152x: done() called outside of command\n"); 1302 } 1303 1304 static struct work_struct aha152x_tq; 1305 1306 /* 1307 * Run service completions on the card with interrupts enabled. 1308 * 1309 */ 1310 static void run(struct work_struct *work) 1311 { 1312 struct aha152x_hostdata *hd; 1313 1314 list_for_each_entry(hd, &aha152x_host_list, host_list) { 1315 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); 1316 1317 is_complete(shost); 1318 } 1319 } 1320 1321 /* 1322 * Interrupt handler 1323 * 1324 */ 1325 static irqreturn_t intr(int irqno, void *dev_id) 1326 { 1327 struct Scsi_Host *shpnt = dev_id; 1328 unsigned long flags; 1329 unsigned char rev, dmacntrl0; 1330 1331 /* 1332 * Read a couple of registers that are known to not be all 1's. If 1333 * we read all 1's (-1), that means that either: 1334 * 1335 * a. The host adapter chip has gone bad, and we cannot control it, 1336 * OR 1337 * b. The host adapter is a PCMCIA card that has been ejected 1338 * 1339 * In either case, we cannot do anything with the host adapter at 1340 * this point in time. So just ignore the interrupt and return. 1341 * In the latter case, the interrupt might actually be meant for 1342 * someone else sharing this IRQ, and that driver will handle it. 1343 */ 1344 rev = GETPORT(REV); 1345 dmacntrl0 = GETPORT(DMACNTRL0); 1346 if ((rev == 0xFF) && (dmacntrl0 == 0xFF)) 1347 return IRQ_NONE; 1348 1349 if( TESTLO(DMASTAT, INTSTAT) ) 1350 return IRQ_NONE; 1351 1352 /* no more interrupts from the controller, while we're busy. 1353 INTEN is restored by the BH handler */ 1354 CLRBITS(DMACNTRL0, INTEN); 1355 1356 DO_LOCK(flags); 1357 if( HOSTDATA(shpnt)->service==0 ) { 1358 HOSTDATA(shpnt)->service=1; 1359 1360 /* Poke the BH handler */ 1361 INIT_WORK(&aha152x_tq, run); 1362 schedule_work(&aha152x_tq); 1363 } 1364 DO_UNLOCK(flags); 1365 1366 return IRQ_HANDLED; 1367 } 1368 1369 /* 1370 * busfree phase 1371 * - handle completition/disconnection/error of current command 1372 * - start selection for next command (if any) 1373 */ 1374 static void busfree_run(struct Scsi_Host *shpnt) 1375 { 1376 unsigned long flags; 1377 #if defined(AHA152X_STAT) 1378 int action=0; 1379 #endif 1380 1381 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 1382 SETPORT(SXFRCTL0, CH1); 1383 1384 SETPORT(SSTAT1, CLRBUSFREE); 1385 1386 if(CURRENT_SC) { 1387 #if defined(AHA152X_STAT) 1388 action++; 1389 #endif 1390 CURRENT_SC->SCp.phase &= ~syncneg; 1391 1392 if(CURRENT_SC->SCp.phase & completed) { 1393 /* target sent COMMAND COMPLETE */ 1394 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16)); 1395 1396 } else if(CURRENT_SC->SCp.phase & aborted) { 1397 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16)); 1398 1399 } else if(CURRENT_SC->SCp.phase & resetted) { 1400 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16)); 1401 1402 } else if(CURRENT_SC->SCp.phase & disconnected) { 1403 /* target sent DISCONNECT */ 1404 #if defined(AHA152X_STAT) 1405 HOSTDATA(shpnt)->disconnections++; 1406 #endif 1407 append_SC(&DISCONNECTED_SC, CURRENT_SC); 1408 CURRENT_SC->SCp.phase |= 1 << 16; 1409 CURRENT_SC = NULL; 1410 1411 } else { 1412 done(shpnt, DID_ERROR << 16); 1413 } 1414 #if defined(AHA152X_STAT) 1415 } else { 1416 HOSTDATA(shpnt)->busfree_without_old_command++; 1417 #endif 1418 } 1419 1420 DO_LOCK(flags); 1421 1422 if(DONE_SC) { 1423 #if defined(AHA152X_STAT) 1424 action++; 1425 #endif 1426 1427 if(DONE_SC->SCp.phase & check_condition) { 1428 struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC; 1429 struct aha152x_scdata *sc = SCDATA(cmd); 1430 1431 scsi_eh_restore_cmnd(cmd, &sc->ses); 1432 1433 cmd->SCp.Status = SAM_STAT_CHECK_CONDITION; 1434 1435 HOSTDATA(shpnt)->commands--; 1436 if (!HOSTDATA(shpnt)->commands) 1437 SETPORT(PORTA, 0); /* turn led off */ 1438 } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) { 1439 #if defined(AHA152X_STAT) 1440 HOSTDATA(shpnt)->busfree_with_check_condition++; 1441 #endif 1442 1443 if(!(DONE_SC->SCp.phase & not_issued)) { 1444 struct aha152x_scdata *sc; 1445 Scsi_Cmnd *ptr = DONE_SC; 1446 DONE_SC=NULL; 1447 1448 sc = SCDATA(ptr); 1449 /* It was allocated in aha152x_internal_queue? */ 1450 BUG_ON(!sc); 1451 scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0); 1452 1453 DO_UNLOCK(flags); 1454 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done); 1455 DO_LOCK(flags); 1456 } 1457 } 1458 1459 if(DONE_SC && DONE_SC->scsi_done) { 1460 Scsi_Cmnd *ptr = DONE_SC; 1461 DONE_SC=NULL; 1462 1463 /* turn led off, when no commands are in the driver */ 1464 HOSTDATA(shpnt)->commands--; 1465 if (!HOSTDATA(shpnt)->commands) 1466 SETPORT(PORTA, 0); /* turn led off */ 1467 1468 if(ptr->scsi_done != reset_done) { 1469 kfree(ptr->host_scribble); 1470 ptr->host_scribble=NULL; 1471 } 1472 1473 DO_UNLOCK(flags); 1474 ptr->scsi_done(ptr); 1475 DO_LOCK(flags); 1476 } 1477 1478 DONE_SC=NULL; 1479 #if defined(AHA152X_STAT) 1480 } else { 1481 HOSTDATA(shpnt)->busfree_without_done_command++; 1482 #endif 1483 } 1484 1485 if(ISSUE_SC) 1486 CURRENT_SC = remove_first_SC(&ISSUE_SC); 1487 1488 DO_UNLOCK(flags); 1489 1490 if(CURRENT_SC) { 1491 #if defined(AHA152X_STAT) 1492 action++; 1493 #endif 1494 CURRENT_SC->SCp.phase |= selecting; 1495 1496 /* clear selection timeout */ 1497 SETPORT(SSTAT1, SELTO); 1498 1499 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id); 1500 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER); 1501 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0)); 1502 } else { 1503 #if defined(AHA152X_STAT) 1504 HOSTDATA(shpnt)->busfree_without_new_command++; 1505 #endif 1506 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0); 1507 } 1508 1509 #if defined(AHA152X_STAT) 1510 if(!action) 1511 HOSTDATA(shpnt)->busfree_without_any_action++; 1512 #endif 1513 } 1514 1515 /* 1516 * Selection done (OUT) 1517 * - queue IDENTIFY message and SDTR to selected target for message out 1518 * (ATN asserted automagically via ENAUTOATNO in busfree()) 1519 */ 1520 static void seldo_run(struct Scsi_Host *shpnt) 1521 { 1522 SETPORT(SCSISIG, 0); 1523 SETPORT(SSTAT1, CLRBUSFREE); 1524 SETPORT(SSTAT1, CLRPHASECHG); 1525 1526 CURRENT_SC->SCp.phase &= ~(selecting|not_issued); 1527 1528 SETPORT(SCSISEQ, 0); 1529 1530 if (TESTLO(SSTAT0, SELDO)) { 1531 scmd_printk(KERN_ERR, CURRENT_SC, 1532 "aha152x: passing bus free condition\n"); 1533 done(shpnt, DID_NO_CONNECT << 16); 1534 return; 1535 } 1536 1537 SETPORT(SSTAT0, CLRSELDO); 1538 1539 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); 1540 1541 if (CURRENT_SC->SCp.phase & aborting) { 1542 ADDMSGO(ABORT); 1543 } else if (CURRENT_SC->SCp.phase & resetting) { 1544 ADDMSGO(BUS_DEVICE_RESET); 1545 } else if (SYNCNEG==0 && SYNCHRONOUS) { 1546 CURRENT_SC->SCp.phase |= syncneg; 1547 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8); 1548 SYNCNEG=1; /* negotiation in progress */ 1549 } 1550 1551 SETRATE(SYNCRATE); 1552 } 1553 1554 /* 1555 * Selection timeout 1556 * - return command to mid-level with failure cause 1557 * 1558 */ 1559 static void selto_run(struct Scsi_Host *shpnt) 1560 { 1561 SETPORT(SCSISEQ, 0); 1562 SETPORT(SSTAT1, CLRSELTIMO); 1563 1564 if (!CURRENT_SC) 1565 return; 1566 1567 CURRENT_SC->SCp.phase &= ~selecting; 1568 1569 if (CURRENT_SC->SCp.phase & aborted) 1570 done(shpnt, DID_ABORT << 16); 1571 else if (TESTLO(SSTAT0, SELINGO)) 1572 done(shpnt, DID_BUS_BUSY << 16); 1573 else 1574 /* ARBITRATION won, but SELECTION failed */ 1575 done(shpnt, DID_NO_CONNECT << 16); 1576 } 1577 1578 /* 1579 * Selection in done 1580 * - put current command back to issue queue 1581 * (reconnection of a disconnected nexus instead 1582 * of successful selection out) 1583 * 1584 */ 1585 static void seldi_run(struct Scsi_Host *shpnt) 1586 { 1587 int selid; 1588 int target; 1589 unsigned long flags; 1590 1591 SETPORT(SCSISIG, 0); 1592 SETPORT(SSTAT0, CLRSELDI); 1593 SETPORT(SSTAT1, CLRBUSFREE); 1594 SETPORT(SSTAT1, CLRPHASECHG); 1595 1596 if(CURRENT_SC) { 1597 if(!(CURRENT_SC->SCp.phase & not_issued)) 1598 scmd_printk(KERN_ERR, CURRENT_SC, 1599 "command should not have been issued yet\n"); 1600 1601 DO_LOCK(flags); 1602 append_SC(&ISSUE_SC, CURRENT_SC); 1603 DO_UNLOCK(flags); 1604 1605 CURRENT_SC = NULL; 1606 } 1607 1608 if (!DISCONNECTED_SC) 1609 return; 1610 1611 RECONN_TARGET=-1; 1612 1613 selid = GETPORT(SELID) & ~(1 << shpnt->this_id); 1614 1615 if (selid==0) { 1616 shost_printk(KERN_INFO, shpnt, 1617 "target id unknown (%02x)\n", selid); 1618 return; 1619 } 1620 1621 for(target=7; !(selid & (1 << target)); target--) 1622 ; 1623 1624 if(selid & ~(1 << target)) { 1625 shost_printk(KERN_INFO, shpnt, 1626 "multiple targets reconnected (%02x)\n", selid); 1627 } 1628 1629 1630 SETPORT(SCSIID, (shpnt->this_id << OID_) | target); 1631 SETPORT(SCSISEQ, 0); 1632 1633 SETRATE(HOSTDATA(shpnt)->syncrate[target]); 1634 1635 RECONN_TARGET=target; 1636 } 1637 1638 /* 1639 * message in phase 1640 * - handle initial message after reconnection to identify 1641 * reconnecting nexus 1642 * - queue command on DISCONNECTED_SC on DISCONNECT message 1643 * - set completed flag on COMMAND COMPLETE 1644 * (other completition code moved to busfree_run) 1645 * - handle response to SDTR 1646 * - clear synchronous transfer agreements on BUS RESET 1647 * 1648 * FIXME: what about SAVE POINTERS, RESTORE POINTERS? 1649 * 1650 */ 1651 static void msgi_run(struct Scsi_Host *shpnt) 1652 { 1653 for(;;) { 1654 int sstat1 = GETPORT(SSTAT1); 1655 1656 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT)) 1657 return; 1658 1659 if (TESTLO(SSTAT0, SPIORDY)) 1660 return; 1661 1662 ADDMSGI(GETPORT(SCSIDAT)); 1663 1664 if(!CURRENT_SC) { 1665 if(LASTSTATE!=seldi) { 1666 shost_printk(KERN_ERR, shpnt, 1667 "message in w/o current command" 1668 " not after reselection\n"); 1669 } 1670 1671 /* 1672 * Handle reselection 1673 */ 1674 if(!(MSGI(0) & IDENTIFY_BASE)) { 1675 shost_printk(KERN_ERR, shpnt, 1676 "target didn't identify after reselection\n"); 1677 continue; 1678 } 1679 1680 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f); 1681 1682 if (!CURRENT_SC) { 1683 show_queues(shpnt); 1684 shost_printk(KERN_ERR, shpnt, 1685 "no disconnected command" 1686 " for target %d/%d\n", 1687 RECONN_TARGET, MSGI(0) & 0x3f); 1688 continue; 1689 } 1690 1691 CURRENT_SC->SCp.Message = MSGI(0); 1692 CURRENT_SC->SCp.phase &= ~disconnected; 1693 1694 MSGILEN=0; 1695 1696 /* next message if any */ 1697 continue; 1698 } 1699 1700 CURRENT_SC->SCp.Message = MSGI(0); 1701 1702 switch (MSGI(0)) { 1703 case DISCONNECT: 1704 if (!RECONNECT) 1705 scmd_printk(KERN_WARNING, CURRENT_SC, 1706 "target was not allowed to disconnect\n"); 1707 1708 CURRENT_SC->SCp.phase |= disconnected; 1709 break; 1710 1711 case COMMAND_COMPLETE: 1712 CURRENT_SC->SCp.phase |= completed; 1713 break; 1714 1715 case MESSAGE_REJECT: 1716 if (SYNCNEG==1) { 1717 scmd_printk(KERN_INFO, CURRENT_SC, 1718 "Synchronous Data Transfer Request" 1719 " was rejected\n"); 1720 SYNCNEG=2; /* negotiation completed */ 1721 } else 1722 scmd_printk(KERN_INFO, CURRENT_SC, 1723 "inbound message (MESSAGE REJECT)\n"); 1724 break; 1725 1726 case SAVE_POINTERS: 1727 break; 1728 1729 case RESTORE_POINTERS: 1730 break; 1731 1732 case EXTENDED_MESSAGE: 1733 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) { 1734 /* not yet completed */ 1735 continue; 1736 } 1737 1738 switch (MSGI(2)) { 1739 case EXTENDED_SDTR: 1740 { 1741 long ticks; 1742 1743 if (MSGI(1) != 3) { 1744 scmd_printk(KERN_ERR, CURRENT_SC, 1745 "SDTR message length!=3\n"); 1746 break; 1747 } 1748 1749 if (!HOSTDATA(shpnt)->synchronous) 1750 break; 1751 1752 printk(INFO_LEAD, CMDINFO(CURRENT_SC)); 1753 spi_print_msg(&MSGI(0)); 1754 printk("\n"); 1755 1756 ticks = (MSGI(3) * 4 + 49) / 50; 1757 1758 if (syncneg) { 1759 /* negotiation in progress */ 1760 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) { 1761 ADDMSGO(MESSAGE_REJECT); 1762 scmd_printk(KERN_INFO, 1763 CURRENT_SC, 1764 "received Synchronous Data Transfer Request invalid - rejected\n"); 1765 break; 1766 } 1767 1768 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); 1769 } else if (ticks <= 9 && MSGI(4) >= 1) { 1770 ADDMSGO(EXTENDED_MESSAGE); 1771 ADDMSGO(3); 1772 ADDMSGO(EXTENDED_SDTR); 1773 if (ticks < 4) { 1774 ticks = 4; 1775 ADDMSGO(50); 1776 } else 1777 ADDMSGO(MSGI(3)); 1778 1779 if (MSGI(4) > 8) 1780 MSGI(4) = 8; 1781 1782 ADDMSGO(MSGI(4)); 1783 1784 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); 1785 } else { 1786 /* requested SDTR is too slow, do it asynchronously */ 1787 scmd_printk(KERN_INFO, 1788 CURRENT_SC, 1789 "Synchronous Data Transfer Request too slow - Rejecting\n"); 1790 ADDMSGO(MESSAGE_REJECT); 1791 } 1792 1793 /* negotiation completed */ 1794 SYNCNEG=2; 1795 SETRATE(SYNCRATE); 1796 } 1797 break; 1798 1799 case BUS_DEVICE_RESET: 1800 { 1801 int i; 1802 1803 for(i=0; i<8; i++) { 1804 HOSTDATA(shpnt)->syncrate[i]=0; 1805 HOSTDATA(shpnt)->syncneg[i]=0; 1806 } 1807 1808 } 1809 break; 1810 1811 case EXTENDED_MODIFY_DATA_POINTER: 1812 case EXTENDED_EXTENDED_IDENTIFY: 1813 case EXTENDED_WDTR: 1814 default: 1815 ADDMSGO(MESSAGE_REJECT); 1816 break; 1817 } 1818 break; 1819 } 1820 1821 MSGILEN=0; 1822 } 1823 } 1824 1825 static void msgi_end(struct Scsi_Host *shpnt) 1826 { 1827 if(MSGILEN>0) 1828 scmd_printk(KERN_WARNING, CURRENT_SC, 1829 "target left before message completed (%d)\n", 1830 MSGILEN); 1831 1832 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) 1833 SETPORT(SCSISIG, P_MSGI | SIG_ATNO); 1834 } 1835 1836 /* 1837 * message out phase 1838 * 1839 */ 1840 static void msgo_init(struct Scsi_Host *shpnt) 1841 { 1842 if(MSGOLEN==0) { 1843 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) { 1844 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); 1845 } else { 1846 scmd_printk(KERN_INFO, CURRENT_SC, 1847 "unexpected MESSAGE OUT phase; rejecting\n"); 1848 ADDMSGO(MESSAGE_REJECT); 1849 } 1850 } 1851 1852 } 1853 1854 /* 1855 * message out phase 1856 * 1857 */ 1858 static void msgo_run(struct Scsi_Host *shpnt) 1859 { 1860 while(MSGO_I<MSGOLEN) { 1861 if (TESTLO(SSTAT0, SPIORDY)) 1862 return; 1863 1864 if (MSGO_I==MSGOLEN-1) { 1865 /* Leave MESSAGE OUT after transfer */ 1866 SETPORT(SSTAT1, CLRATNO); 1867 } 1868 1869 1870 if (MSGO(MSGO_I) & IDENTIFY_BASE) 1871 CURRENT_SC->SCp.phase |= identified; 1872 1873 if (MSGO(MSGO_I)==ABORT) 1874 CURRENT_SC->SCp.phase |= aborted; 1875 1876 if (MSGO(MSGO_I)==BUS_DEVICE_RESET) 1877 CURRENT_SC->SCp.phase |= resetted; 1878 1879 SETPORT(SCSIDAT, MSGO(MSGO_I++)); 1880 } 1881 } 1882 1883 static void msgo_end(struct Scsi_Host *shpnt) 1884 { 1885 if(MSGO_I<MSGOLEN) { 1886 scmd_printk(KERN_ERR, CURRENT_SC, 1887 "message sent incompletely (%d/%d)\n", 1888 MSGO_I, MSGOLEN); 1889 if(SYNCNEG==1) { 1890 scmd_printk(KERN_INFO, CURRENT_SC, 1891 "Synchronous Data Transfer Request was rejected\n"); 1892 SYNCNEG=2; 1893 } 1894 } 1895 1896 MSGO_I = 0; 1897 MSGOLEN = 0; 1898 } 1899 1900 /* 1901 * command phase 1902 * 1903 */ 1904 static void cmd_init(struct Scsi_Host *shpnt) 1905 { 1906 if (CURRENT_SC->SCp.sent_command) { 1907 scmd_printk(KERN_ERR, CURRENT_SC, 1908 "command already sent\n"); 1909 done(shpnt, DID_ERROR << 16); 1910 return; 1911 } 1912 1913 CMD_I=0; 1914 } 1915 1916 /* 1917 * command phase 1918 * 1919 */ 1920 static void cmd_run(struct Scsi_Host *shpnt) 1921 { 1922 while(CMD_I<CURRENT_SC->cmd_len) { 1923 if (TESTLO(SSTAT0, SPIORDY)) 1924 return; 1925 1926 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]); 1927 } 1928 } 1929 1930 static void cmd_end(struct Scsi_Host *shpnt) 1931 { 1932 if(CMD_I<CURRENT_SC->cmd_len) 1933 scmd_printk(KERN_ERR, CURRENT_SC, 1934 "command sent incompletely (%d/%d)\n", 1935 CMD_I, CURRENT_SC->cmd_len); 1936 else 1937 CURRENT_SC->SCp.sent_command++; 1938 } 1939 1940 /* 1941 * status phase 1942 * 1943 */ 1944 static void status_run(struct Scsi_Host *shpnt) 1945 { 1946 if (TESTLO(SSTAT0, SPIORDY)) 1947 return; 1948 1949 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT); 1950 1951 } 1952 1953 /* 1954 * data in phase 1955 * 1956 */ 1957 static void datai_init(struct Scsi_Host *shpnt) 1958 { 1959 SETPORT(DMACNTRL0, RSTFIFO); 1960 SETPORT(DMACNTRL0, RSTFIFO|ENDMA); 1961 1962 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 1963 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); 1964 1965 SETPORT(SIMODE0, 0); 1966 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE); 1967 1968 DATA_LEN=0; 1969 } 1970 1971 static void datai_run(struct Scsi_Host *shpnt) 1972 { 1973 unsigned long the_time; 1974 int fifodata, data_count; 1975 1976 /* 1977 * loop while the phase persists or the fifos are not empty 1978 * 1979 */ 1980 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) { 1981 /* FIXME: maybe this should be done by setting up 1982 * STCNT to trigger ENSWRAP interrupt, instead of 1983 * polling for DFIFOFULL 1984 */ 1985 the_time=jiffies + 100*HZ; 1986 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time)) 1987 barrier(); 1988 1989 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) { 1990 scmd_printk(KERN_ERR, CURRENT_SC, "datai timeout\n"); 1991 break; 1992 } 1993 1994 if(TESTHI(DMASTAT, DFIFOFULL)) { 1995 fifodata = 128; 1996 } else { 1997 the_time=jiffies + 100*HZ; 1998 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time)) 1999 barrier(); 2000 2001 if(TESTLO(SSTAT2, SEMPTY)) { 2002 scmd_printk(KERN_ERR, CURRENT_SC, 2003 "datai sempty timeout"); 2004 break; 2005 } 2006 2007 fifodata = GETPORT(FIFOSTAT); 2008 } 2009 2010 if(CURRENT_SC->SCp.this_residual>0) { 2011 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) { 2012 data_count = fifodata > CURRENT_SC->SCp.this_residual ? 2013 CURRENT_SC->SCp.this_residual : 2014 fifodata; 2015 fifodata -= data_count; 2016 2017 if (data_count & 1) { 2018 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2019 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT); 2020 CURRENT_SC->SCp.this_residual--; 2021 DATA_LEN++; 2022 SETPORT(DMACNTRL0, ENDMA); 2023 } 2024 2025 if (data_count > 1) { 2026 data_count >>= 1; 2027 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); 2028 CURRENT_SC->SCp.ptr += 2 * data_count; 2029 CURRENT_SC->SCp.this_residual -= 2 * data_count; 2030 DATA_LEN += 2 * data_count; 2031 } 2032 2033 if (CURRENT_SC->SCp.this_residual == 0 && 2034 CURRENT_SC->SCp.buffers_residual > 0) { 2035 /* advance to next buffer */ 2036 CURRENT_SC->SCp.buffers_residual--; 2037 CURRENT_SC->SCp.buffer++; 2038 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); 2039 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; 2040 } 2041 } 2042 } else if (fifodata > 0) { 2043 scmd_printk(KERN_ERR, CURRENT_SC, 2044 "no buffers left for %d(%d) bytes" 2045 " (data overrun!?)\n", 2046 fifodata, GETPORT(FIFOSTAT)); 2047 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2048 while(fifodata>0) { 2049 int data; 2050 data=GETPORT(DATAPORT); 2051 fifodata--; 2052 DATA_LEN++; 2053 } 2054 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2055 } 2056 } 2057 2058 if(TESTLO(DMASTAT, INTSTAT) || 2059 TESTLO(DMASTAT, DFIFOEMP) || 2060 TESTLO(SSTAT2, SEMPTY) || 2061 GETPORT(FIFOSTAT)>0) { 2062 /* 2063 * something went wrong, if there's something left in the fifos 2064 * or the phase didn't change 2065 */ 2066 scmd_printk(KERN_ERR, CURRENT_SC, 2067 "fifos should be empty and phase should have changed\n"); 2068 } 2069 2070 if(DATA_LEN!=GETSTCNT()) { 2071 scmd_printk(KERN_ERR, CURRENT_SC, 2072 "manual transfer count differs from automatic " 2073 "(count=%d;stcnt=%d;diff=%d;fifostat=%d)", 2074 DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, 2075 GETPORT(FIFOSTAT)); 2076 mdelay(10000); 2077 } 2078 } 2079 2080 static void datai_end(struct Scsi_Host *shpnt) 2081 { 2082 CMD_INC_RESID(CURRENT_SC, -GETSTCNT()); 2083 2084 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 2085 SETPORT(DMACNTRL0, 0); 2086 } 2087 2088 /* 2089 * data out phase 2090 * 2091 */ 2092 static void datao_init(struct Scsi_Host *shpnt) 2093 { 2094 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO); 2095 SETPORT(DMACNTRL0, WRITE_READ | ENDMA); 2096 2097 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 2098 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); 2099 2100 SETPORT(SIMODE0, 0); 2101 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE ); 2102 2103 DATA_LEN = scsi_get_resid(CURRENT_SC); 2104 } 2105 2106 static void datao_run(struct Scsi_Host *shpnt) 2107 { 2108 unsigned long the_time; 2109 int data_count; 2110 2111 /* until phase changes or all data sent */ 2112 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) { 2113 data_count = 128; 2114 if(data_count > CURRENT_SC->SCp.this_residual) 2115 data_count=CURRENT_SC->SCp.this_residual; 2116 2117 if(TESTLO(DMASTAT, DFIFOEMP)) { 2118 scmd_printk(KERN_ERR, CURRENT_SC, 2119 "datao fifo not empty (%d)", 2120 GETPORT(FIFOSTAT)); 2121 break; 2122 } 2123 2124 if(data_count & 1) { 2125 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT); 2126 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++); 2127 CURRENT_SC->SCp.this_residual--; 2128 CMD_INC_RESID(CURRENT_SC, -1); 2129 SETPORT(DMACNTRL0,WRITE_READ|ENDMA); 2130 } 2131 2132 if(data_count > 1) { 2133 data_count >>= 1; 2134 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); 2135 CURRENT_SC->SCp.ptr += 2 * data_count; 2136 CURRENT_SC->SCp.this_residual -= 2 * data_count; 2137 CMD_INC_RESID(CURRENT_SC, -2 * data_count); 2138 } 2139 2140 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) { 2141 /* advance to next buffer */ 2142 CURRENT_SC->SCp.buffers_residual--; 2143 CURRENT_SC->SCp.buffer++; 2144 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); 2145 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; 2146 } 2147 2148 the_time=jiffies + 100*HZ; 2149 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time)) 2150 barrier(); 2151 2152 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) { 2153 scmd_printk(KERN_ERR, CURRENT_SC, "dataout timeout\n"); 2154 break; 2155 } 2156 } 2157 } 2158 2159 static void datao_end(struct Scsi_Host *shpnt) 2160 { 2161 if(TESTLO(DMASTAT, DFIFOEMP)) { 2162 int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) - 2163 GETSTCNT(); 2164 2165 CMD_INC_RESID(CURRENT_SC, data_count); 2166 2167 data_count -= CURRENT_SC->SCp.ptr - 2168 SG_ADDRESS(CURRENT_SC->SCp.buffer); 2169 while(data_count>0) { 2170 CURRENT_SC->SCp.buffer--; 2171 CURRENT_SC->SCp.buffers_residual++; 2172 data_count -= CURRENT_SC->SCp.buffer->length; 2173 } 2174 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - 2175 data_count; 2176 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + 2177 data_count; 2178 } 2179 2180 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 2181 SETPORT(SXFRCTL0, CH1); 2182 2183 SETPORT(DMACNTRL0, 0); 2184 } 2185 2186 /* 2187 * figure out what state we're in 2188 * 2189 */ 2190 static int update_state(struct Scsi_Host *shpnt) 2191 { 2192 int dataphase=0; 2193 unsigned int stat0 = GETPORT(SSTAT0); 2194 unsigned int stat1 = GETPORT(SSTAT1); 2195 2196 PREVSTATE = STATE; 2197 STATE=unknown; 2198 2199 if(stat1 & SCSIRSTI) { 2200 STATE=rsti; 2201 SETPORT(SCSISEQ,0); 2202 SETPORT(SSTAT1,SCSIRSTI); 2203 } else if (stat0 & SELDI && PREVSTATE == busfree) { 2204 STATE=seldi; 2205 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) { 2206 STATE=seldo; 2207 } else if(stat1 & SELTO) { 2208 STATE=selto; 2209 } else if(stat1 & BUSFREE) { 2210 STATE=busfree; 2211 SETPORT(SSTAT1,BUSFREE); 2212 } else if(stat1 & SCSIPERR) { 2213 STATE=parerr; 2214 SETPORT(SSTAT1,SCSIPERR); 2215 } else if(stat1 & REQINIT) { 2216 switch(GETPORT(SCSISIG) & P_MASK) { 2217 case P_MSGI: STATE=msgi; break; 2218 case P_MSGO: STATE=msgo; break; 2219 case P_DATAO: STATE=datao; break; 2220 case P_DATAI: STATE=datai; break; 2221 case P_STATUS: STATE=status; break; 2222 case P_CMD: STATE=cmd; break; 2223 } 2224 dataphase=1; 2225 } 2226 2227 if((stat0 & SELDI) && STATE!=seldi && !dataphase) { 2228 scmd_printk(KERN_INFO, CURRENT_SC, "reselection missed?"); 2229 } 2230 2231 if(STATE!=PREVSTATE) { 2232 LASTSTATE=PREVSTATE; 2233 } 2234 2235 return dataphase; 2236 } 2237 2238 /* 2239 * handle parity error 2240 * 2241 * FIXME: in which phase? 2242 * 2243 */ 2244 static void parerr_run(struct Scsi_Host *shpnt) 2245 { 2246 scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n"); 2247 done(shpnt, DID_PARITY << 16); 2248 } 2249 2250 /* 2251 * handle reset in 2252 * 2253 */ 2254 static void rsti_run(struct Scsi_Host *shpnt) 2255 { 2256 Scsi_Cmnd *ptr; 2257 2258 shost_printk(KERN_NOTICE, shpnt, "scsi reset in\n"); 2259 2260 ptr=DISCONNECTED_SC; 2261 while(ptr) { 2262 Scsi_Cmnd *next = SCNEXT(ptr); 2263 2264 if (!ptr->device->soft_reset) { 2265 remove_SC(&DISCONNECTED_SC, ptr); 2266 2267 kfree(ptr->host_scribble); 2268 ptr->host_scribble=NULL; 2269 2270 ptr->result = DID_RESET << 16; 2271 ptr->scsi_done(ptr); 2272 } 2273 2274 ptr = next; 2275 } 2276 2277 if(CURRENT_SC && !CURRENT_SC->device->soft_reset) 2278 done(shpnt, DID_RESET << 16 ); 2279 } 2280 2281 2282 /* 2283 * bottom-half handler 2284 * 2285 */ 2286 static void is_complete(struct Scsi_Host *shpnt) 2287 { 2288 int dataphase; 2289 unsigned long flags; 2290 int pending; 2291 2292 if(!shpnt) 2293 return; 2294 2295 DO_LOCK(flags); 2296 2297 if( HOSTDATA(shpnt)->service==0 ) { 2298 DO_UNLOCK(flags); 2299 return; 2300 } 2301 2302 HOSTDATA(shpnt)->service = 0; 2303 2304 if(HOSTDATA(shpnt)->in_intr) { 2305 DO_UNLOCK(flags); 2306 /* aha152x_error never returns.. */ 2307 aha152x_error(shpnt, "bottom-half already running!?"); 2308 } 2309 HOSTDATA(shpnt)->in_intr++; 2310 2311 /* 2312 * loop while there are interrupt conditions pending 2313 * 2314 */ 2315 do { 2316 unsigned long start = jiffies; 2317 DO_UNLOCK(flags); 2318 2319 dataphase=update_state(shpnt); 2320 2321 /* 2322 * end previous state 2323 * 2324 */ 2325 if(PREVSTATE!=STATE && states[PREVSTATE].end) 2326 states[PREVSTATE].end(shpnt); 2327 2328 /* 2329 * disable SPIO mode if previous phase used it 2330 * and this one doesn't 2331 * 2332 */ 2333 if(states[PREVSTATE].spio && !states[STATE].spio) { 2334 SETPORT(SXFRCTL0, CH1); 2335 SETPORT(DMACNTRL0, 0); 2336 if(CURRENT_SC) 2337 CURRENT_SC->SCp.phase &= ~spiordy; 2338 } 2339 2340 /* 2341 * accept current dataphase phase 2342 * 2343 */ 2344 if(dataphase) { 2345 SETPORT(SSTAT0, REQINIT); 2346 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK); 2347 SETPORT(SSTAT1, PHASECHG); 2348 } 2349 2350 /* 2351 * enable SPIO mode if previous didn't use it 2352 * and this one does 2353 * 2354 */ 2355 if(!states[PREVSTATE].spio && states[STATE].spio) { 2356 SETPORT(DMACNTRL0, 0); 2357 SETPORT(SXFRCTL0, CH1|SPIOEN); 2358 if(CURRENT_SC) 2359 CURRENT_SC->SCp.phase |= spiordy; 2360 } 2361 2362 /* 2363 * initialize for new state 2364 * 2365 */ 2366 if(PREVSTATE!=STATE && states[STATE].init) 2367 states[STATE].init(shpnt); 2368 2369 /* 2370 * handle current state 2371 * 2372 */ 2373 if(states[STATE].run) 2374 states[STATE].run(shpnt); 2375 else 2376 scmd_printk(KERN_ERR, CURRENT_SC, 2377 "unexpected state (%x)\n", STATE); 2378 2379 /* 2380 * setup controller to interrupt on 2381 * the next expected condition and 2382 * loop if it's already there 2383 * 2384 */ 2385 DO_LOCK(flags); 2386 pending=setup_expected_interrupts(shpnt); 2387 #if defined(AHA152X_STAT) 2388 HOSTDATA(shpnt)->count[STATE]++; 2389 if(PREVSTATE!=STATE) 2390 HOSTDATA(shpnt)->count_trans[STATE]++; 2391 HOSTDATA(shpnt)->time[STATE] += jiffies-start; 2392 #endif 2393 2394 } while(pending); 2395 2396 /* 2397 * enable interrupts and leave bottom-half 2398 * 2399 */ 2400 HOSTDATA(shpnt)->in_intr--; 2401 SETBITS(DMACNTRL0, INTEN); 2402 DO_UNLOCK(flags); 2403 } 2404 2405 2406 /* 2407 * Dump the current driver status and panic 2408 */ 2409 static void aha152x_error(struct Scsi_Host *shpnt, char *msg) 2410 { 2411 shost_printk(KERN_EMERG, shpnt, "%s\n", msg); 2412 show_queues(shpnt); 2413 panic("aha152x panic\n"); 2414 } 2415 2416 /* 2417 * display enabled interrupts 2418 */ 2419 static void disp_enintr(struct Scsi_Host *shpnt) 2420 { 2421 int s0, s1; 2422 2423 s0 = GETPORT(SIMODE0); 2424 s1 = GETPORT(SIMODE1); 2425 2426 shost_printk(KERN_DEBUG, shpnt, 2427 "enabled interrupts (%s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", 2428 (s0 & ENSELDO) ? "ENSELDO " : "", 2429 (s0 & ENSELDI) ? "ENSELDI " : "", 2430 (s0 & ENSELINGO) ? "ENSELINGO " : "", 2431 (s0 & ENSWRAP) ? "ENSWRAP " : "", 2432 (s0 & ENSDONE) ? "ENSDONE " : "", 2433 (s0 & ENSPIORDY) ? "ENSPIORDY " : "", 2434 (s0 & ENDMADONE) ? "ENDMADONE " : "", 2435 (s1 & ENSELTIMO) ? "ENSELTIMO " : "", 2436 (s1 & ENATNTARG) ? "ENATNTARG " : "", 2437 (s1 & ENPHASEMIS) ? "ENPHASEMIS " : "", 2438 (s1 & ENBUSFREE) ? "ENBUSFREE " : "", 2439 (s1 & ENSCSIPERR) ? "ENSCSIPERR " : "", 2440 (s1 & ENPHASECHG) ? "ENPHASECHG " : "", 2441 (s1 & ENREQINIT) ? "ENREQINIT " : ""); 2442 } 2443 2444 /* 2445 * Show the command data of a command 2446 */ 2447 static void show_command(Scsi_Cmnd *ptr) 2448 { 2449 scsi_print_command(ptr); 2450 scmd_printk(KERN_DEBUG, ptr, 2451 "request_bufflen=%d; resid=%d; " 2452 "phase |%s%s%s%s%s%s%s%s%s; next=0x%p", 2453 scsi_bufflen(ptr), scsi_get_resid(ptr), 2454 (ptr->SCp.phase & not_issued) ? "not issued|" : "", 2455 (ptr->SCp.phase & selecting) ? "selecting|" : "", 2456 (ptr->SCp.phase & identified) ? "identified|" : "", 2457 (ptr->SCp.phase & disconnected) ? "disconnected|" : "", 2458 (ptr->SCp.phase & completed) ? "completed|" : "", 2459 (ptr->SCp.phase & spiordy) ? "spiordy|" : "", 2460 (ptr->SCp.phase & syncneg) ? "syncneg|" : "", 2461 (ptr->SCp.phase & aborted) ? "aborted|" : "", 2462 (ptr->SCp.phase & resetted) ? "resetted|" : "", 2463 (SCDATA(ptr)) ? SCNEXT(ptr) : NULL); 2464 } 2465 2466 /* 2467 * Dump the queued data 2468 */ 2469 static void show_queues(struct Scsi_Host *shpnt) 2470 { 2471 Scsi_Cmnd *ptr; 2472 unsigned long flags; 2473 2474 DO_LOCK(flags); 2475 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n"); 2476 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) 2477 show_command(ptr); 2478 DO_UNLOCK(flags); 2479 2480 printk(KERN_DEBUG "current_SC:\n"); 2481 if (CURRENT_SC) 2482 show_command(CURRENT_SC); 2483 else 2484 printk(KERN_DEBUG "none\n"); 2485 2486 printk(KERN_DEBUG "disconnected_SC:\n"); 2487 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL) 2488 show_command(ptr); 2489 2490 disp_enintr(shpnt); 2491 } 2492 2493 #undef SPRINTF 2494 #define SPRINTF(args...) seq_printf(m, ##args) 2495 2496 static void get_command(struct seq_file *m, Scsi_Cmnd * ptr) 2497 { 2498 int i; 2499 2500 SPRINTF("%p: target=%d; lun=%d; cmnd=( ", 2501 ptr, ptr->device->id, (u8)ptr->device->lun); 2502 2503 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++) 2504 SPRINTF("0x%02x ", ptr->cmnd[i]); 2505 2506 SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |", 2507 scsi_get_resid(ptr), ptr->SCp.this_residual, 2508 ptr->SCp.buffers_residual); 2509 2510 if (ptr->SCp.phase & not_issued) 2511 SPRINTF("not issued|"); 2512 if (ptr->SCp.phase & selecting) 2513 SPRINTF("selecting|"); 2514 if (ptr->SCp.phase & disconnected) 2515 SPRINTF("disconnected|"); 2516 if (ptr->SCp.phase & aborted) 2517 SPRINTF("aborted|"); 2518 if (ptr->SCp.phase & identified) 2519 SPRINTF("identified|"); 2520 if (ptr->SCp.phase & completed) 2521 SPRINTF("completed|"); 2522 if (ptr->SCp.phase & spiordy) 2523 SPRINTF("spiordy|"); 2524 if (ptr->SCp.phase & syncneg) 2525 SPRINTF("syncneg|"); 2526 SPRINTF("; next=0x%p\n", SCNEXT(ptr)); 2527 } 2528 2529 static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt) 2530 { 2531 int s; 2532 2533 SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name); 2534 2535 s = GETPORT(SCSISEQ); 2536 SPRINTF("SCSISEQ( "); 2537 if (s & TEMODEO) 2538 SPRINTF("TARGET MODE "); 2539 if (s & ENSELO) 2540 SPRINTF("SELO "); 2541 if (s & ENSELI) 2542 SPRINTF("SELI "); 2543 if (s & ENRESELI) 2544 SPRINTF("RESELI "); 2545 if (s & ENAUTOATNO) 2546 SPRINTF("AUTOATNO "); 2547 if (s & ENAUTOATNI) 2548 SPRINTF("AUTOATNI "); 2549 if (s & ENAUTOATNP) 2550 SPRINTF("AUTOATNP "); 2551 if (s & SCSIRSTO) 2552 SPRINTF("SCSIRSTO "); 2553 SPRINTF(");"); 2554 2555 SPRINTF(" SCSISIG("); 2556 s = GETPORT(SCSISIG); 2557 switch (s & P_MASK) { 2558 case P_DATAO: 2559 SPRINTF("DATA OUT"); 2560 break; 2561 case P_DATAI: 2562 SPRINTF("DATA IN"); 2563 break; 2564 case P_CMD: 2565 SPRINTF("COMMAND"); 2566 break; 2567 case P_STATUS: 2568 SPRINTF("STATUS"); 2569 break; 2570 case P_MSGO: 2571 SPRINTF("MESSAGE OUT"); 2572 break; 2573 case P_MSGI: 2574 SPRINTF("MESSAGE IN"); 2575 break; 2576 default: 2577 SPRINTF("*invalid*"); 2578 break; 2579 } 2580 2581 SPRINTF("); "); 2582 2583 SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo"); 2584 2585 SPRINTF("SSTAT( "); 2586 s = GETPORT(SSTAT0); 2587 if (s & TARGET) 2588 SPRINTF("TARGET "); 2589 if (s & SELDO) 2590 SPRINTF("SELDO "); 2591 if (s & SELDI) 2592 SPRINTF("SELDI "); 2593 if (s & SELINGO) 2594 SPRINTF("SELINGO "); 2595 if (s & SWRAP) 2596 SPRINTF("SWRAP "); 2597 if (s & SDONE) 2598 SPRINTF("SDONE "); 2599 if (s & SPIORDY) 2600 SPRINTF("SPIORDY "); 2601 if (s & DMADONE) 2602 SPRINTF("DMADONE "); 2603 2604 s = GETPORT(SSTAT1); 2605 if (s & SELTO) 2606 SPRINTF("SELTO "); 2607 if (s & ATNTARG) 2608 SPRINTF("ATNTARG "); 2609 if (s & SCSIRSTI) 2610 SPRINTF("SCSIRSTI "); 2611 if (s & PHASEMIS) 2612 SPRINTF("PHASEMIS "); 2613 if (s & BUSFREE) 2614 SPRINTF("BUSFREE "); 2615 if (s & SCSIPERR) 2616 SPRINTF("SCSIPERR "); 2617 if (s & PHASECHG) 2618 SPRINTF("PHASECHG "); 2619 if (s & REQINIT) 2620 SPRINTF("REQINIT "); 2621 SPRINTF("); "); 2622 2623 2624 SPRINTF("SSTAT( "); 2625 2626 s = GETPORT(SSTAT0) & GETPORT(SIMODE0); 2627 2628 if (s & TARGET) 2629 SPRINTF("TARGET "); 2630 if (s & SELDO) 2631 SPRINTF("SELDO "); 2632 if (s & SELDI) 2633 SPRINTF("SELDI "); 2634 if (s & SELINGO) 2635 SPRINTF("SELINGO "); 2636 if (s & SWRAP) 2637 SPRINTF("SWRAP "); 2638 if (s & SDONE) 2639 SPRINTF("SDONE "); 2640 if (s & SPIORDY) 2641 SPRINTF("SPIORDY "); 2642 if (s & DMADONE) 2643 SPRINTF("DMADONE "); 2644 2645 s = GETPORT(SSTAT1) & GETPORT(SIMODE1); 2646 2647 if (s & SELTO) 2648 SPRINTF("SELTO "); 2649 if (s & ATNTARG) 2650 SPRINTF("ATNTARG "); 2651 if (s & SCSIRSTI) 2652 SPRINTF("SCSIRSTI "); 2653 if (s & PHASEMIS) 2654 SPRINTF("PHASEMIS "); 2655 if (s & BUSFREE) 2656 SPRINTF("BUSFREE "); 2657 if (s & SCSIPERR) 2658 SPRINTF("SCSIPERR "); 2659 if (s & PHASECHG) 2660 SPRINTF("PHASECHG "); 2661 if (s & REQINIT) 2662 SPRINTF("REQINIT "); 2663 SPRINTF("); "); 2664 2665 SPRINTF("SXFRCTL0( "); 2666 2667 s = GETPORT(SXFRCTL0); 2668 if (s & SCSIEN) 2669 SPRINTF("SCSIEN "); 2670 if (s & DMAEN) 2671 SPRINTF("DMAEN "); 2672 if (s & CH1) 2673 SPRINTF("CH1 "); 2674 if (s & CLRSTCNT) 2675 SPRINTF("CLRSTCNT "); 2676 if (s & SPIOEN) 2677 SPRINTF("SPIOEN "); 2678 if (s & CLRCH1) 2679 SPRINTF("CLRCH1 "); 2680 SPRINTF("); "); 2681 2682 SPRINTF("SIGNAL( "); 2683 2684 s = GETPORT(SCSISIG); 2685 if (s & SIG_ATNI) 2686 SPRINTF("ATNI "); 2687 if (s & SIG_SELI) 2688 SPRINTF("SELI "); 2689 if (s & SIG_BSYI) 2690 SPRINTF("BSYI "); 2691 if (s & SIG_REQI) 2692 SPRINTF("REQI "); 2693 if (s & SIG_ACKI) 2694 SPRINTF("ACKI "); 2695 SPRINTF("); "); 2696 2697 SPRINTF("SELID(%02x), ", GETPORT(SELID)); 2698 2699 SPRINTF("STCNT(%d), ", GETSTCNT()); 2700 2701 SPRINTF("SSTAT2( "); 2702 2703 s = GETPORT(SSTAT2); 2704 if (s & SOFFSET) 2705 SPRINTF("SOFFSET "); 2706 if (s & SEMPTY) 2707 SPRINTF("SEMPTY "); 2708 if (s & SFULL) 2709 SPRINTF("SFULL "); 2710 SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT)); 2711 2712 s = GETPORT(SSTAT3); 2713 SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f); 2714 2715 SPRINTF("SSTAT4( "); 2716 s = GETPORT(SSTAT4); 2717 if (s & SYNCERR) 2718 SPRINTF("SYNCERR "); 2719 if (s & FWERR) 2720 SPRINTF("FWERR "); 2721 if (s & FRERR) 2722 SPRINTF("FRERR "); 2723 SPRINTF("); "); 2724 2725 SPRINTF("DMACNTRL0( "); 2726 s = GETPORT(DMACNTRL0); 2727 SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT"); 2728 SPRINTF("%s ", s & DMA ? "DMA" : "PIO"); 2729 SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ"); 2730 if (s & ENDMA) 2731 SPRINTF("ENDMA "); 2732 if (s & INTEN) 2733 SPRINTF("INTEN "); 2734 if (s & RSTFIFO) 2735 SPRINTF("RSTFIFO "); 2736 if (s & SWINT) 2737 SPRINTF("SWINT "); 2738 SPRINTF("); "); 2739 2740 SPRINTF("DMASTAT( "); 2741 s = GETPORT(DMASTAT); 2742 if (s & ATDONE) 2743 SPRINTF("ATDONE "); 2744 if (s & WORDRDY) 2745 SPRINTF("WORDRDY "); 2746 if (s & DFIFOFULL) 2747 SPRINTF("DFIFOFULL "); 2748 if (s & DFIFOEMP) 2749 SPRINTF("DFIFOEMP "); 2750 SPRINTF(")\n"); 2751 2752 SPRINTF("enabled interrupts( "); 2753 2754 s = GETPORT(SIMODE0); 2755 if (s & ENSELDO) 2756 SPRINTF("ENSELDO "); 2757 if (s & ENSELDI) 2758 SPRINTF("ENSELDI "); 2759 if (s & ENSELINGO) 2760 SPRINTF("ENSELINGO "); 2761 if (s & ENSWRAP) 2762 SPRINTF("ENSWRAP "); 2763 if (s & ENSDONE) 2764 SPRINTF("ENSDONE "); 2765 if (s & ENSPIORDY) 2766 SPRINTF("ENSPIORDY "); 2767 if (s & ENDMADONE) 2768 SPRINTF("ENDMADONE "); 2769 2770 s = GETPORT(SIMODE1); 2771 if (s & ENSELTIMO) 2772 SPRINTF("ENSELTIMO "); 2773 if (s & ENATNTARG) 2774 SPRINTF("ENATNTARG "); 2775 if (s & ENPHASEMIS) 2776 SPRINTF("ENPHASEMIS "); 2777 if (s & ENBUSFREE) 2778 SPRINTF("ENBUSFREE "); 2779 if (s & ENSCSIPERR) 2780 SPRINTF("ENSCSIPERR "); 2781 if (s & ENPHASECHG) 2782 SPRINTF("ENPHASECHG "); 2783 if (s & ENREQINIT) 2784 SPRINTF("ENREQINIT "); 2785 SPRINTF(")\n"); 2786 } 2787 2788 static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length) 2789 { 2790 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0) 2791 return -EINVAL; 2792 2793 #if defined(AHA152X_STAT) 2794 if(length>13 && strncmp("reset", buffer+8, 5)==0) { 2795 int i; 2796 2797 HOSTDATA(shpnt)->total_commands=0; 2798 HOSTDATA(shpnt)->disconnections=0; 2799 HOSTDATA(shpnt)->busfree_without_any_action=0; 2800 HOSTDATA(shpnt)->busfree_without_old_command=0; 2801 HOSTDATA(shpnt)->busfree_without_new_command=0; 2802 HOSTDATA(shpnt)->busfree_without_done_command=0; 2803 HOSTDATA(shpnt)->busfree_with_check_condition=0; 2804 for (i = idle; i<maxstate; i++) { 2805 HOSTDATA(shpnt)->count[i]=0; 2806 HOSTDATA(shpnt)->count_trans[i]=0; 2807 HOSTDATA(shpnt)->time[i]=0; 2808 } 2809 2810 shost_printk(KERN_INFO, shpnt, "aha152x: stats reset.\n"); 2811 2812 } else 2813 #endif 2814 { 2815 return -EINVAL; 2816 } 2817 2818 2819 return length; 2820 } 2821 2822 static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt) 2823 { 2824 int i; 2825 Scsi_Cmnd *ptr; 2826 unsigned long flags; 2827 2828 SPRINTF(AHA152X_REVID "\n"); 2829 2830 SPRINTF("ioports 0x%04lx to 0x%04lx\n", 2831 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1); 2832 SPRINTF("interrupt 0x%02x\n", shpnt->irq); 2833 SPRINTF("disconnection/reconnection %s\n", 2834 RECONNECT ? "enabled" : "disabled"); 2835 SPRINTF("parity checking %s\n", 2836 PARITY ? "enabled" : "disabled"); 2837 SPRINTF("synchronous transfers %s\n", 2838 SYNCHRONOUS ? "enabled" : "disabled"); 2839 SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands); 2840 2841 if(SYNCHRONOUS) { 2842 SPRINTF("synchronously operating targets (tick=50 ns):\n"); 2843 for (i = 0; i < 8; i++) 2844 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f) 2845 SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n", 2846 i, 2847 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2), 2848 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50, 2849 HOSTDATA(shpnt)->syncrate[i] & 0x0f); 2850 } 2851 SPRINTF("\nqueue status:\n"); 2852 DO_LOCK(flags); 2853 if (ISSUE_SC) { 2854 SPRINTF("not yet issued commands:\n"); 2855 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) 2856 get_command(m, ptr); 2857 } else 2858 SPRINTF("no not yet issued commands\n"); 2859 DO_UNLOCK(flags); 2860 2861 if (CURRENT_SC) { 2862 SPRINTF("current command:\n"); 2863 get_command(m, CURRENT_SC); 2864 } else 2865 SPRINTF("no current command\n"); 2866 2867 if (DISCONNECTED_SC) { 2868 SPRINTF("disconnected commands:\n"); 2869 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr)) 2870 get_command(m, ptr); 2871 } else 2872 SPRINTF("no disconnected commands\n"); 2873 2874 get_ports(m, shpnt); 2875 2876 #if defined(AHA152X_STAT) 2877 SPRINTF("statistics:\n" 2878 "total commands: %d\n" 2879 "disconnections: %d\n" 2880 "busfree with check condition: %d\n" 2881 "busfree without old command: %d\n" 2882 "busfree without new command: %d\n" 2883 "busfree without done command: %d\n" 2884 "busfree without any action: %d\n" 2885 "state " 2886 "transitions " 2887 "count " 2888 "time\n", 2889 HOSTDATA(shpnt)->total_commands, 2890 HOSTDATA(shpnt)->disconnections, 2891 HOSTDATA(shpnt)->busfree_with_check_condition, 2892 HOSTDATA(shpnt)->busfree_without_old_command, 2893 HOSTDATA(shpnt)->busfree_without_new_command, 2894 HOSTDATA(shpnt)->busfree_without_done_command, 2895 HOSTDATA(shpnt)->busfree_without_any_action); 2896 for(i=0; i<maxstate; i++) { 2897 SPRINTF("%-10s %-12d %-12d %-12ld\n", 2898 states[i].name, 2899 HOSTDATA(shpnt)->count_trans[i], 2900 HOSTDATA(shpnt)->count[i], 2901 HOSTDATA(shpnt)->time[i]); 2902 } 2903 #endif 2904 return 0; 2905 } 2906 2907 static int aha152x_adjust_queue(struct scsi_device *device) 2908 { 2909 blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH); 2910 return 0; 2911 } 2912 2913 static struct scsi_host_template aha152x_driver_template = { 2914 .module = THIS_MODULE, 2915 .name = AHA152X_REVID, 2916 .proc_name = "aha152x", 2917 .show_info = aha152x_show_info, 2918 .write_info = aha152x_set_info, 2919 .queuecommand = aha152x_queue, 2920 .eh_abort_handler = aha152x_abort, 2921 .eh_device_reset_handler = aha152x_device_reset, 2922 .eh_bus_reset_handler = aha152x_bus_reset, 2923 .eh_host_reset_handler = aha152x_host_reset, 2924 .bios_param = aha152x_biosparam, 2925 .can_queue = 1, 2926 .this_id = 7, 2927 .sg_tablesize = SG_ALL, 2928 .cmd_per_lun = 1, 2929 .use_clustering = DISABLE_CLUSTERING, 2930 .slave_alloc = aha152x_adjust_queue, 2931 }; 2932 2933 #if !defined(PCMCIA) 2934 static int setup_count; 2935 static struct aha152x_setup setup[2]; 2936 2937 /* possible i/o addresses for the AIC-6260; default first */ 2938 static unsigned short ports[] = { 0x340, 0x140 }; 2939 2940 #if !defined(SKIP_BIOSTEST) 2941 /* possible locations for the Adaptec BIOS; defaults first */ 2942 static unsigned int addresses[] = 2943 { 2944 0xdc000, /* default first */ 2945 0xc8000, 2946 0xcc000, 2947 0xd0000, 2948 0xd4000, 2949 0xd8000, 2950 0xe0000, 2951 0xeb800, /* VTech Platinum SMP */ 2952 0xf0000, 2953 }; 2954 2955 /* signatures for various AIC-6[23]60 based controllers. 2956 The point in detecting signatures is to avoid useless and maybe 2957 harmful probes on ports. I'm not sure that all listed boards pass 2958 auto-configuration. For those which fail the BIOS signature is 2959 obsolete, because user intervention to supply the configuration is 2960 needed anyway. May be an information whether or not the BIOS supports 2961 extended translation could be also useful here. */ 2962 static struct signature { 2963 unsigned char *signature; 2964 int sig_offset; 2965 int sig_length; 2966 } signatures[] = 2967 { 2968 { "Adaptec AHA-1520 BIOS", 0x102e, 21 }, 2969 /* Adaptec 152x */ 2970 { "Adaptec AHA-1520B", 0x000b, 17 }, 2971 /* Adaptec 152x rev B */ 2972 { "Adaptec AHA-1520B", 0x0026, 17 }, 2973 /* Iomega Jaz Jet ISA (AIC6370Q) */ 2974 { "Adaptec ASW-B626 BIOS", 0x1029, 21 }, 2975 /* on-board controller */ 2976 { "Adaptec BIOS: ASW-B626", 0x000f, 22 }, 2977 /* on-board controller */ 2978 { "Adaptec ASW-B626 S2", 0x2e6c, 19 }, 2979 /* on-board controller */ 2980 { "Adaptec BIOS:AIC-6360", 0x000c, 21 }, 2981 /* on-board controller */ 2982 { "ScsiPro SP-360 BIOS", 0x2873, 19 }, 2983 /* ScsiPro-Controller */ 2984 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 }, 2985 /* Gigabyte Local-Bus-SCSI */ 2986 { "Adaptec BIOS:AVA-282X", 0x000c, 21 }, 2987 /* Adaptec 282x */ 2988 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 }, 2989 /* IBM Thinkpad Dock II */ 2990 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 }, 2991 /* IBM Thinkpad Dock II SCSI */ 2992 { "DTC3520A Host Adapter BIOS", 0x318a, 26 }, 2993 /* DTC 3520A ISA SCSI */ 2994 }; 2995 #endif /* !SKIP_BIOSTEST */ 2996 2997 /* 2998 * Test, if port_base is valid. 2999 * 3000 */ 3001 static int aha152x_porttest(int io_port) 3002 { 3003 int i; 3004 3005 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ 3006 for (i = 0; i < 16; i++) 3007 SETPORT(io_port + O_STACK, i); 3008 3009 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ 3010 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++) 3011 ; 3012 3013 return (i == 16); 3014 } 3015 3016 static int tc1550_porttest(int io_port) 3017 { 3018 int i; 3019 3020 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ 3021 for (i = 0; i < 16; i++) 3022 SETPORT(io_port + O_STACK, i); 3023 3024 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ 3025 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++) 3026 ; 3027 3028 return (i == 16); 3029 } 3030 3031 3032 static int checksetup(struct aha152x_setup *setup) 3033 { 3034 int i; 3035 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++) 3036 ; 3037 3038 if (i == ARRAY_SIZE(ports)) 3039 return 0; 3040 3041 if (!request_region(setup->io_port, IO_RANGE, "aha152x")) { 3042 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port); 3043 return 0; 3044 } 3045 3046 if( aha152x_porttest(setup->io_port) ) { 3047 setup->tc1550=0; 3048 } else if( tc1550_porttest(setup->io_port) ) { 3049 setup->tc1550=1; 3050 } else { 3051 release_region(setup->io_port, IO_RANGE); 3052 return 0; 3053 } 3054 3055 release_region(setup->io_port, IO_RANGE); 3056 3057 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX)) 3058 return 0; 3059 3060 if ((setup->scsiid < 0) || (setup->scsiid > 7)) 3061 return 0; 3062 3063 if ((setup->reconnect < 0) || (setup->reconnect > 1)) 3064 return 0; 3065 3066 if ((setup->parity < 0) || (setup->parity > 1)) 3067 return 0; 3068 3069 if ((setup->synchronous < 0) || (setup->synchronous > 1)) 3070 return 0; 3071 3072 if ((setup->ext_trans < 0) || (setup->ext_trans > 1)) 3073 return 0; 3074 3075 3076 return 1; 3077 } 3078 3079 3080 static int __init aha152x_init(void) 3081 { 3082 int i, j, ok; 3083 #if defined(AUTOCONF) 3084 aha152x_config conf; 3085 #endif 3086 #ifdef __ISAPNP__ 3087 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL}; 3088 #endif 3089 3090 if ( setup_count ) { 3091 printk(KERN_INFO "aha152x: processing commandline: "); 3092 3093 for (i = 0; i<setup_count; i++) { 3094 if (!checksetup(&setup[i])) { 3095 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf); 3096 printk(KERN_ERR "aha152x: invalid line\n"); 3097 } 3098 } 3099 printk("ok\n"); 3100 } 3101 3102 #if defined(SETUP0) 3103 if (setup_count < ARRAY_SIZE(setup)) { 3104 struct aha152x_setup override = SETUP0; 3105 3106 if (setup_count == 0 || (override.io_port != setup[0].io_port)) { 3107 if (!checksetup(&override)) { 3108 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", 3109 override.io_port, 3110 override.irq, 3111 override.scsiid, 3112 override.reconnect, 3113 override.parity, 3114 override.synchronous, 3115 override.delay, 3116 override.ext_trans); 3117 } else 3118 setup[setup_count++] = override; 3119 } 3120 } 3121 #endif 3122 3123 #if defined(SETUP1) 3124 if (setup_count < ARRAY_SIZE(setup)) { 3125 struct aha152x_setup override = SETUP1; 3126 3127 if (setup_count == 0 || (override.io_port != setup[0].io_port)) { 3128 if (!checksetup(&override)) { 3129 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", 3130 override.io_port, 3131 override.irq, 3132 override.scsiid, 3133 override.reconnect, 3134 override.parity, 3135 override.synchronous, 3136 override.delay, 3137 override.ext_trans); 3138 } else 3139 setup[setup_count++] = override; 3140 } 3141 } 3142 #endif 3143 3144 #if defined(MODULE) 3145 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) { 3146 if(aha152x[0]!=0) { 3147 setup[setup_count].conf = ""; 3148 setup[setup_count].io_port = aha152x[0]; 3149 setup[setup_count].irq = aha152x[1]; 3150 setup[setup_count].scsiid = aha152x[2]; 3151 setup[setup_count].reconnect = aha152x[3]; 3152 setup[setup_count].parity = aha152x[4]; 3153 setup[setup_count].synchronous = aha152x[5]; 3154 setup[setup_count].delay = aha152x[6]; 3155 setup[setup_count].ext_trans = aha152x[7]; 3156 } else if (io[0] != 0 || irq[0] != 0) { 3157 if(io[0]!=0) setup[setup_count].io_port = io[0]; 3158 if(irq[0]!=0) setup[setup_count].irq = irq[0]; 3159 3160 setup[setup_count].scsiid = scsiid[0]; 3161 setup[setup_count].reconnect = reconnect[0]; 3162 setup[setup_count].parity = parity[0]; 3163 setup[setup_count].synchronous = sync[0]; 3164 setup[setup_count].delay = delay[0]; 3165 setup[setup_count].ext_trans = exttrans[0]; 3166 } 3167 3168 if (checksetup(&setup[setup_count])) 3169 setup_count++; 3170 else 3171 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n", 3172 setup[setup_count].io_port, 3173 setup[setup_count].irq, 3174 setup[setup_count].scsiid, 3175 setup[setup_count].reconnect, 3176 setup[setup_count].parity, 3177 setup[setup_count].synchronous, 3178 setup[setup_count].delay, 3179 setup[setup_count].ext_trans); 3180 } 3181 3182 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) { 3183 if(aha152x1[0]!=0) { 3184 setup[setup_count].conf = ""; 3185 setup[setup_count].io_port = aha152x1[0]; 3186 setup[setup_count].irq = aha152x1[1]; 3187 setup[setup_count].scsiid = aha152x1[2]; 3188 setup[setup_count].reconnect = aha152x1[3]; 3189 setup[setup_count].parity = aha152x1[4]; 3190 setup[setup_count].synchronous = aha152x1[5]; 3191 setup[setup_count].delay = aha152x1[6]; 3192 setup[setup_count].ext_trans = aha152x1[7]; 3193 } else if (io[1] != 0 || irq[1] != 0) { 3194 if(io[1]!=0) setup[setup_count].io_port = io[1]; 3195 if(irq[1]!=0) setup[setup_count].irq = irq[1]; 3196 3197 setup[setup_count].scsiid = scsiid[1]; 3198 setup[setup_count].reconnect = reconnect[1]; 3199 setup[setup_count].parity = parity[1]; 3200 setup[setup_count].synchronous = sync[1]; 3201 setup[setup_count].delay = delay[1]; 3202 setup[setup_count].ext_trans = exttrans[1]; 3203 } 3204 if (checksetup(&setup[setup_count])) 3205 setup_count++; 3206 else 3207 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n", 3208 setup[setup_count].io_port, 3209 setup[setup_count].irq, 3210 setup[setup_count].scsiid, 3211 setup[setup_count].reconnect, 3212 setup[setup_count].parity, 3213 setup[setup_count].synchronous, 3214 setup[setup_count].delay, 3215 setup[setup_count].ext_trans); 3216 } 3217 #endif 3218 3219 #ifdef __ISAPNP__ 3220 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) { 3221 while ( setup_count<ARRAY_SIZE(setup) && 3222 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) { 3223 if (pnp_device_attach(dev) < 0) 3224 continue; 3225 3226 if (pnp_activate_dev(dev) < 0) { 3227 pnp_device_detach(dev); 3228 continue; 3229 } 3230 3231 if (!pnp_port_valid(dev, 0)) { 3232 pnp_device_detach(dev); 3233 continue; 3234 } 3235 3236 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) { 3237 pnp_device_detach(dev); 3238 continue; 3239 } 3240 3241 setup[setup_count].io_port = pnp_port_start(dev, 0); 3242 setup[setup_count].irq = pnp_irq(dev, 0); 3243 setup[setup_count].scsiid = 7; 3244 setup[setup_count].reconnect = 1; 3245 setup[setup_count].parity = 1; 3246 setup[setup_count].synchronous = 1; 3247 setup[setup_count].delay = DELAY_DEFAULT; 3248 setup[setup_count].ext_trans = 0; 3249 #if defined(__ISAPNP__) 3250 pnpdev[setup_count] = dev; 3251 #endif 3252 printk (KERN_INFO 3253 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n", 3254 setup[setup_count].io_port, setup[setup_count].irq); 3255 setup_count++; 3256 } 3257 } 3258 #endif 3259 3260 #if defined(AUTOCONF) 3261 if (setup_count<ARRAY_SIZE(setup)) { 3262 #if !defined(SKIP_BIOSTEST) 3263 ok = 0; 3264 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) { 3265 void __iomem *p = ioremap(addresses[i], 0x4000); 3266 if (!p) 3267 continue; 3268 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++) 3269 ok = check_signature(p + signatures[j].sig_offset, 3270 signatures[j].signature, signatures[j].sig_length); 3271 iounmap(p); 3272 } 3273 if (!ok && setup_count == 0) 3274 return -ENODEV; 3275 3276 printk(KERN_INFO "aha152x: BIOS test: passed, "); 3277 #else 3278 printk(KERN_INFO "aha152x: "); 3279 #endif /* !SKIP_BIOSTEST */ 3280 3281 ok = 0; 3282 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) { 3283 if ((setup_count == 1) && (setup[0].io_port == ports[i])) 3284 continue; 3285 3286 if (!request_region(ports[i], IO_RANGE, "aha152x")) { 3287 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]); 3288 continue; 3289 } 3290 3291 if (aha152x_porttest(ports[i])) { 3292 setup[setup_count].tc1550 = 0; 3293 3294 conf.cf_port = 3295 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB); 3296 } else if (tc1550_porttest(ports[i])) { 3297 setup[setup_count].tc1550 = 1; 3298 3299 conf.cf_port = 3300 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB); 3301 } else { 3302 release_region(ports[i], IO_RANGE); 3303 continue; 3304 } 3305 3306 release_region(ports[i], IO_RANGE); 3307 3308 ok++; 3309 setup[setup_count].io_port = ports[i]; 3310 setup[setup_count].irq = IRQ_MIN + conf.cf_irq; 3311 setup[setup_count].scsiid = conf.cf_id; 3312 setup[setup_count].reconnect = conf.cf_tardisc; 3313 setup[setup_count].parity = !conf.cf_parity; 3314 setup[setup_count].synchronous = conf.cf_syncneg; 3315 setup[setup_count].delay = DELAY_DEFAULT; 3316 setup[setup_count].ext_trans = 0; 3317 setup_count++; 3318 3319 } 3320 3321 if (ok) 3322 printk("auto configuration: ok, "); 3323 } 3324 #endif 3325 3326 printk("%d controller(s) configured\n", setup_count); 3327 3328 for (i=0; i<setup_count; i++) { 3329 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) { 3330 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]); 3331 3332 if( !shpnt ) { 3333 release_region(setup[i].io_port, IO_RANGE); 3334 #if defined(__ISAPNP__) 3335 } else if( pnpdev[i] ) { 3336 HOSTDATA(shpnt)->pnpdev=pnpdev[i]; 3337 pnpdev[i]=NULL; 3338 #endif 3339 } 3340 } else { 3341 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port); 3342 } 3343 3344 #if defined(__ISAPNP__) 3345 if( pnpdev[i] ) 3346 pnp_device_detach(pnpdev[i]); 3347 #endif 3348 } 3349 3350 return 0; 3351 } 3352 3353 static void __exit aha152x_exit(void) 3354 { 3355 struct aha152x_hostdata *hd, *tmp; 3356 3357 list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) { 3358 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); 3359 3360 aha152x_release(shost); 3361 } 3362 } 3363 3364 module_init(aha152x_init); 3365 module_exit(aha152x_exit); 3366 3367 #if !defined(MODULE) 3368 static int __init aha152x_setup(char *str) 3369 { 3370 int ints[10]; 3371 3372 get_options(str, ARRAY_SIZE(ints), ints); 3373 3374 if(setup_count>=ARRAY_SIZE(setup)) { 3375 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n"); 3376 return 1; 3377 } 3378 3379 setup[setup_count].conf = str; 3380 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340; 3381 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11; 3382 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7; 3383 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1; 3384 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1; 3385 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1; 3386 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT; 3387 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0; 3388 if (ints[0] > 8) { /*}*/ 3389 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" 3390 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n"); 3391 } else { 3392 setup_count++; 3393 return 0; 3394 } 3395 3396 return 1; 3397 } 3398 __setup("aha152x=", aha152x_setup); 3399 #endif 3400 3401 #endif /* !PCMCIA */ 3402