1// SPDX-License-Identifier: GPL-2.0-or-later 2/* aha152x.c -- Adaptec AHA-152x driver 3 * Author: Jürgen E. Fischer, fischer@norbit.de 4 * Copyright 1993-2004 Jürgen E. Fischer 5 * 6 * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $ 7 * 8 * $Log: aha152x.c,v $ 9 * Revision 2.7 2004/01/24 11:42:59 fischer 10 * - gather code that is not used by PCMCIA at the end 11 * - move request_region for !PCMCIA case to detection 12 * - migration to new scsi host api (remove legacy code) 13 * - free host scribble before scsi_done 14 * - fix error handling 15 * - one isapnp device added to id_table 16 * 17 * Revision 2.6 2003/10/30 20:52:47 fischer 18 * - interfaces changes for kernel 2.6 19 * - aha152x_probe_one introduced for pcmcia stub 20 * - fixed pnpdev handling 21 * - instead of allocation a new one, reuse command for request sense after check condition and reset 22 * - fixes race in is_complete 23 * 24 * Revision 2.5 2002/04/14 11:24:53 fischer 25 * - isapnp support 26 * - abort fixed 27 * - 2.5 support 28 * 29 * Revision 2.4 2000/12/16 12:53:56 fischer 30 * - allow REQUEST SENSE to be queued 31 * - handle shared PCI interrupts 32 * 33 * Revision 2.3 2000/11/04 16:40:26 fischer 34 * - handle data overruns 35 * - extend timeout for data phases 36 * 37 * Revision 2.2 2000/08/08 19:54:53 fischer 38 * - minor changes 39 * 40 * Revision 2.1 2000/05/17 16:23:17 fischer 41 * - signature update 42 * - fix for data out w/o scatter gather 43 * 44 * Revision 2.0 1999/12/25 15:07:32 fischer 45 * - interrupt routine completly reworked 46 * - basic support for new eh code 47 * 48 * Revision 1.21 1999/11/10 23:46:36 fischer 49 * - default to synchronous operation 50 * - synchronous negotiation fixed 51 * - added timeout to loops 52 * - debugging output can be controlled through procfs 53 * 54 * Revision 1.20 1999/11/07 18:37:31 fischer 55 * - synchronous operation works 56 * - resid support for sg driver 57 * 58 * Revision 1.19 1999/11/02 22:39:59 fischer 59 * - moved leading comments to README.aha152x 60 * - new additional module parameters 61 * - updates for 2.3 62 * - support for the Tripace TC1550 controller 63 * - interrupt handling changed 64 * 65 * Revision 1.18 1996/09/07 20:10:40 fischer 66 * - fixed can_queue handling (multiple outstanding commands working again) 67 * 68 * Revision 1.17 1996/08/17 16:05:14 fischer 69 * - biosparam improved 70 * - interrupt verification 71 * - updated documentation 72 * - cleanups 73 * 74 * Revision 1.16 1996/06/09 00:04:56 root 75 * - added configuration symbols for insmod (aha152x/aha152x1) 76 * 77 * Revision 1.15 1996/04/30 14:52:06 fischer 78 * - proc info fixed 79 * - support for extended translation for >1GB disks 80 * 81 * Revision 1.14 1996/01/17 15:11:20 fischer 82 * - fixed lockup in MESSAGE IN phase after reconnection 83 * 84 * Revision 1.13 1996/01/09 02:15:53 fischer 85 * - some cleanups 86 * - moved request_irq behind controller initialization 87 * (to avoid spurious interrupts) 88 * 89 * Revision 1.12 1995/12/16 12:26:07 fischer 90 * - barrier()s added 91 * - configurable RESET delay added 92 * 93 * Revision 1.11 1995/12/06 21:18:35 fischer 94 * - some minor updates 95 * 96 * Revision 1.10 1995/07/22 19:18:45 fischer 97 * - support for 2 controllers 98 * - started synchronous data transfers (not working yet) 99 * 100 * Revision 1.9 1995/03/18 09:20:24 root 101 * - patches for PCMCIA and modules 102 * 103 * Revision 1.8 1995/01/21 22:07:19 root 104 * - snarf_region => request_region 105 * - aha152x_intr interface change 106 * 107 * Revision 1.7 1995/01/02 23:19:36 root 108 * - updated COMMAND_SIZE to cmd_len 109 * - changed sti() to restore_flags() 110 * - fixed some #ifdef which generated warnings 111 * 112 * Revision 1.6 1994/11/24 20:35:27 root 113 * - problem with odd number of bytes in fifo fixed 114 * 115 * Revision 1.5 1994/10/30 14:39:56 root 116 * - abort code fixed 117 * - debugging improved 118 * 119 * Revision 1.4 1994/09/12 11:33:01 root 120 * - irqaction to request_irq 121 * - abortion updated 122 * 123 * Revision 1.3 1994/08/04 13:53:05 root 124 * - updates for mid-level-driver changes 125 * - accept unexpected BUSFREE phase as error condition 126 * - parity check now configurable 127 * 128 * Revision 1.2 1994/07/03 12:56:36 root 129 * - cleaned up debugging code 130 * - more tweaking on reset delays 131 * - updated abort/reset code (pretty untested...) 132 * 133 * Revision 1.1 1994/05/28 21:18:49 root 134 * - update for mid-level interface change (abort-reset) 135 * - delays after resets adjusted for some slow devices 136 * 137 * Revision 1.0 1994/03/25 12:52:00 root 138 * - Fixed "more data than expected" problem 139 * - added new BIOS signatures 140 * 141 * Revision 0.102 1994/01/31 20:44:12 root 142 * - minor changes in insw/outsw handling 143 * 144 * Revision 0.101 1993/12/13 01:16:27 root 145 * - fixed STATUS phase (non-GOOD stati were dropped sometimes; 146 * fixes problems with CD-ROM sector size detection & media change) 147 * 148 * Revision 0.100 1993/12/10 16:58:47 root 149 * - fix for unsuccessful selections in case of non-continuous id assignments 150 * on the scsi bus. 151 * 152 * Revision 0.99 1993/10/24 16:19:59 root 153 * - fixed DATA IN (rare read errors gone) 154 * 155 * Revision 0.98 1993/10/17 12:54:44 root 156 * - fixed some recent fixes (shame on me) 157 * - moved initialization of scratch area to aha152x_queue 158 * 159 * Revision 0.97 1993/10/09 18:53:53 root 160 * - DATA IN fixed. Rarely left data in the fifo. 161 * 162 * Revision 0.96 1993/10/03 00:53:59 root 163 * - minor changes on DATA IN 164 * 165 * Revision 0.95 1993/09/24 10:36:01 root 166 * - change handling of MSGI after reselection 167 * - fixed sti/cli 168 * - minor changes 169 * 170 * Revision 0.94 1993/09/18 14:08:22 root 171 * - fixed bug in multiple outstanding command code 172 * - changed detection 173 * - support for kernel command line configuration 174 * - reset corrected 175 * - changed message handling 176 * 177 * Revision 0.93 1993/09/15 20:41:19 root 178 * - fixed bugs with multiple outstanding commands 179 * 180 * Revision 0.92 1993/09/13 02:46:33 root 181 * - multiple outstanding commands work (no problems with IBM drive) 182 * 183 * Revision 0.91 1993/09/12 20:51:46 root 184 * added multiple outstanding commands 185 * (some problem with this $%&? IBM device remain) 186 * 187 * Revision 0.9 1993/09/12 11:11:22 root 188 * - corrected auto-configuration 189 * - changed the auto-configuration (added some '#define's) 190 * - added support for dis-/reconnection 191 * 192 * Revision 0.8 1993/09/06 23:09:39 root 193 * - added support for the drive activity light 194 * - minor changes 195 * 196 * Revision 0.7 1993/09/05 14:30:15 root 197 * - improved phase detection 198 * - now using the new snarf_region code of 0.99pl13 199 * 200 * Revision 0.6 1993/09/02 11:01:38 root 201 * first public release; added some signatures and biosparam() 202 * 203 * Revision 0.5 1993/08/30 10:23:30 root 204 * fixed timing problems with my IBM drive 205 * 206 * Revision 0.4 1993/08/29 14:06:52 root 207 * fixed some problems with timeouts due incomplete commands 208 * 209 * Revision 0.3 1993/08/28 15:55:03 root 210 * writing data works too. mounted and worked on a dos partition 211 * 212 * Revision 0.2 1993/08/27 22:42:07 root 213 * reading data works. Mounted a msdos partition. 214 * 215 * Revision 0.1 1993/08/25 13:38:30 root 216 * first "damn thing doesn't work" version 217 * 218 * Revision 0.0 1993/08/14 19:54:25 root 219 * empty function bodies; detect() works. 220 * 221 ************************************************************************** 222 223 see Documentation/scsi/aha152x.rst for configuration details 224 225 **************************************************************************/ 226 227#include <linux/module.h> 228#include <asm/irq.h> 229#include <linux/io.h> 230#include <linux/blkdev.h> 231#include <linux/completion.h> 232#include <linux/errno.h> 233#include <linux/string.h> 234#include <linux/wait.h> 235#include <linux/ioport.h> 236#include <linux/delay.h> 237#include <linux/proc_fs.h> 238#include <linux/interrupt.h> 239#include <linux/init.h> 240#include <linux/kernel.h> 241#include <linux/isapnp.h> 242#include <linux/spinlock.h> 243#include <linux/workqueue.h> 244#include <linux/list.h> 245#include <linux/slab.h> 246#include <scsi/scsicam.h> 247 248#include "scsi.h" 249#include <scsi/scsi_dbg.h> 250#include <scsi/scsi_host.h> 251#include <scsi/scsi_transport_spi.h> 252#include <scsi/scsi_eh.h> 253#include "aha152x.h" 254 255static LIST_HEAD(aha152x_host_list); 256 257 258/* DEFINES */ 259 260/* For PCMCIA cards, always use AUTOCONF */ 261#if defined(AHA152X_PCMCIA) || defined(MODULE) 262#if !defined(AUTOCONF) 263#define AUTOCONF 264#endif 265#endif 266 267#if !defined(AUTOCONF) && !defined(SETUP0) 268#error define AUTOCONF or SETUP0 269#endif 270 271#define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags) 272#define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags) 273 274#define LEAD "(scsi%d:%d:%d) " 275#define INFO_LEAD KERN_INFO LEAD 276#define CMDINFO(cmd) \ 277 (cmd) ? ((cmd)->device->host->host_no) : -1, \ 278 (cmd) ? ((cmd)->device->id & 0x0f) : -1, \ 279 (cmd) ? ((u8)(cmd)->device->lun & 0x07) : -1 280 281static inline void 282CMD_INC_RESID(struct scsi_cmnd *cmd, int inc) 283{ 284 scsi_set_resid(cmd, scsi_get_resid(cmd) + inc); 285} 286 287#define DELAY_DEFAULT 1000 288 289#if defined(AHA152X_PCMCIA) 290#define IRQ_MIN 0 291#define IRQ_MAX 16 292#else 293#define IRQ_MIN 9 294#if defined(__PPC) 295#define IRQ_MAX (nr_irqs-1) 296#else 297#define IRQ_MAX 12 298#endif 299#endif 300 301enum { 302 not_issued = 0x0001, /* command not yet issued */ 303 selecting = 0x0002, /* target is being selected */ 304 identified = 0x0004, /* IDENTIFY was sent */ 305 disconnected = 0x0008, /* target disconnected */ 306 completed = 0x0010, /* target sent COMMAND COMPLETE */ 307 aborted = 0x0020, /* ABORT was sent */ 308 resetted = 0x0040, /* BUS DEVICE RESET was sent */ 309 spiordy = 0x0080, /* waiting for SPIORDY to raise */ 310 syncneg = 0x0100, /* synchronous negotiation in progress */ 311 aborting = 0x0200, /* ABORT is pending */ 312 resetting = 0x0400, /* BUS DEVICE RESET is pending */ 313 check_condition = 0x0800, /* requesting sense after CHECK CONDITION */ 314}; 315 316MODULE_AUTHOR("Jürgen Fischer"); 317MODULE_DESCRIPTION(AHA152X_REVID); 318MODULE_LICENSE("GPL"); 319 320#if !defined(AHA152X_PCMCIA) 321#if defined(MODULE) 322static int io[] = {0, 0}; 323module_param_hw_array(io, int, ioport, NULL, 0); 324MODULE_PARM_DESC(io,"base io address of controller"); 325 326static int irq[] = {0, 0}; 327module_param_hw_array(irq, int, irq, NULL, 0); 328MODULE_PARM_DESC(irq,"interrupt for controller"); 329 330static int scsiid[] = {7, 7}; 331module_param_array(scsiid, int, NULL, 0); 332MODULE_PARM_DESC(scsiid,"scsi id of controller"); 333 334static int reconnect[] = {1, 1}; 335module_param_array(reconnect, int, NULL, 0); 336MODULE_PARM_DESC(reconnect,"allow targets to disconnect"); 337 338static int parity[] = {1, 1}; 339module_param_array(parity, int, NULL, 0); 340MODULE_PARM_DESC(parity,"use scsi parity"); 341 342static int sync[] = {1, 1}; 343module_param_array(sync, int, NULL, 0); 344MODULE_PARM_DESC(sync,"use synchronous transfers"); 345 346static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT}; 347module_param_array(delay, int, NULL, 0); 348MODULE_PARM_DESC(delay,"scsi reset delay"); 349 350static int exttrans[] = {0, 0}; 351module_param_array(exttrans, int, NULL, 0); 352MODULE_PARM_DESC(exttrans,"use extended translation"); 353 354static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; 355module_param_array(aha152x, int, NULL, 0); 356MODULE_PARM_DESC(aha152x, "parameters for first controller"); 357 358static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; 359module_param_array(aha152x1, int, NULL, 0); 360MODULE_PARM_DESC(aha152x1, "parameters for second controller"); 361#endif /* MODULE */ 362 363#ifdef __ISAPNP__ 364static struct isapnp_device_id id_table[] = { 365 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 }, 366 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 }, 367 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 }, 368 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 }, 369 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 }, 370 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 }, 371 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 }, 372 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 }, 373 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 }, 374 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 }, 375 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 }, 376 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 }, 377 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 }, 378 { ISAPNP_DEVICE_SINGLE_END, } 379}; 380MODULE_DEVICE_TABLE(isapnp, id_table); 381#endif /* ISAPNP */ 382 383#endif /* !AHA152X_PCMCIA */ 384 385static struct scsi_host_template aha152x_driver_template; 386 387/* 388 * internal states of the host 389 * 390 */ 391enum aha152x_state { 392 idle=0, 393 unknown, 394 seldo, 395 seldi, 396 selto, 397 busfree, 398 msgo, 399 cmd, 400 msgi, 401 status, 402 datai, 403 datao, 404 parerr, 405 rsti, 406 maxstate 407}; 408 409/* 410 * current state information of the host 411 * 412 */ 413struct aha152x_hostdata { 414 struct scsi_cmnd *issue_SC; 415 /* pending commands to issue */ 416 417 struct scsi_cmnd *current_SC; 418 /* current command on the bus */ 419 420 struct scsi_cmnd *disconnected_SC; 421 /* commands that disconnected */ 422 423 struct scsi_cmnd *done_SC; 424 /* command that was completed */ 425 426 spinlock_t lock; 427 /* host lock */ 428 429#if defined(AHA152X_STAT) 430 int total_commands; 431 int disconnections; 432 int busfree_without_any_action; 433 int busfree_without_old_command; 434 int busfree_without_new_command; 435 int busfree_without_done_command; 436 int busfree_with_check_condition; 437 int count[maxstate]; 438 int count_trans[maxstate]; 439 unsigned long time[maxstate]; 440#endif 441 442 int commands; /* current number of commands */ 443 444 int reconnect; /* disconnection allowed */ 445 int parity; /* parity checking enabled */ 446 int synchronous; /* synchronous transferes enabled */ 447 int delay; /* reset out delay */ 448 int ext_trans; /* extended translation enabled */ 449 450 int swint; /* software-interrupt was fired during detect() */ 451 int service; /* bh needs to be run */ 452 int in_intr; /* bh is running */ 453 454 /* current state, 455 previous state, 456 last state different from current state */ 457 enum aha152x_state state, prevstate, laststate; 458 459 int target; 460 /* reconnecting target */ 461 462 unsigned char syncrate[8]; 463 /* current synchronous transfer agreements */ 464 465 unsigned char syncneg[8]; 466 /* 0: no negotiation; 467 * 1: negotiation in progress; 468 * 2: negotiation completed 469 */ 470 471 int cmd_i; 472 /* number of sent bytes of current command */ 473 474 int msgi_len; 475 /* number of received message bytes */ 476 unsigned char msgi[256]; 477 /* received message bytes */ 478 479 int msgo_i, msgo_len; 480 /* number of sent bytes and length of current messages */ 481 unsigned char msgo[256]; 482 /* pending messages */ 483 484 int data_len; 485 /* number of sent/received bytes in dataphase */ 486 487 unsigned long io_port0; 488 unsigned long io_port1; 489 490#ifdef __ISAPNP__ 491 struct pnp_dev *pnpdev; 492#endif 493 struct list_head host_list; 494}; 495 496 497/* 498 * host specific command extension 499 * 500 */ 501struct aha152x_scdata { 502 struct scsi_cmnd *next; /* next sc in queue */ 503 struct completion *done;/* semaphore to block on */ 504 struct scsi_eh_save ses; 505}; 506 507/* access macros for hostdata */ 508 509#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata) 510 511#define HOSTNO ((shpnt)->host_no) 512 513#define CURRENT_SC (HOSTDATA(shpnt)->current_SC) 514#define DONE_SC (HOSTDATA(shpnt)->done_SC) 515#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC) 516#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC) 517#define QLOCK (HOSTDATA(shpnt)->lock) 518#define QLOCKER (HOSTDATA(shpnt)->locker) 519#define QLOCKERL (HOSTDATA(shpnt)->lockerl) 520 521#define STATE (HOSTDATA(shpnt)->state) 522#define PREVSTATE (HOSTDATA(shpnt)->prevstate) 523#define LASTSTATE (HOSTDATA(shpnt)->laststate) 524 525#define RECONN_TARGET (HOSTDATA(shpnt)->target) 526 527#define CMD_I (HOSTDATA(shpnt)->cmd_i) 528 529#define MSGO(i) (HOSTDATA(shpnt)->msgo[i]) 530#define MSGO_I (HOSTDATA(shpnt)->msgo_i) 531#define MSGOLEN (HOSTDATA(shpnt)->msgo_len) 532#define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow")) 533 534#define MSGI(i) (HOSTDATA(shpnt)->msgi[i]) 535#define MSGILEN (HOSTDATA(shpnt)->msgi_len) 536#define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow")) 537 538#define DATA_LEN (HOSTDATA(shpnt)->data_len) 539 540#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id]) 541#define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id]) 542 543#define DELAY (HOSTDATA(shpnt)->delay) 544#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans) 545#define TC1550 (HOSTDATA(shpnt)->tc1550) 546#define RECONNECT (HOSTDATA(shpnt)->reconnect) 547#define PARITY (HOSTDATA(shpnt)->parity) 548#define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous) 549 550#define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0) 551#define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1) 552 553#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble) 554#define SCNEXT(SCpnt) SCDATA(SCpnt)->next 555#define SCSEM(SCpnt) SCDATA(SCpnt)->done 556 557#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) 558 559/* state handling */ 560static void seldi_run(struct Scsi_Host *shpnt); 561static void seldo_run(struct Scsi_Host *shpnt); 562static void selto_run(struct Scsi_Host *shpnt); 563static void busfree_run(struct Scsi_Host *shpnt); 564 565static void msgo_init(struct Scsi_Host *shpnt); 566static void msgo_run(struct Scsi_Host *shpnt); 567static void msgo_end(struct Scsi_Host *shpnt); 568 569static void cmd_init(struct Scsi_Host *shpnt); 570static void cmd_run(struct Scsi_Host *shpnt); 571static void cmd_end(struct Scsi_Host *shpnt); 572 573static void datai_init(struct Scsi_Host *shpnt); 574static void datai_run(struct Scsi_Host *shpnt); 575static void datai_end(struct Scsi_Host *shpnt); 576 577static void datao_init(struct Scsi_Host *shpnt); 578static void datao_run(struct Scsi_Host *shpnt); 579static void datao_end(struct Scsi_Host *shpnt); 580 581static void status_run(struct Scsi_Host *shpnt); 582 583static void msgi_run(struct Scsi_Host *shpnt); 584static void msgi_end(struct Scsi_Host *shpnt); 585 586static void parerr_run(struct Scsi_Host *shpnt); 587static void rsti_run(struct Scsi_Host *shpnt); 588 589static void is_complete(struct Scsi_Host *shpnt); 590 591/* 592 * driver states 593 * 594 */ 595static struct { 596 char *name; 597 void (*init)(struct Scsi_Host *); 598 void (*run)(struct Scsi_Host *); 599 void (*end)(struct Scsi_Host *); 600 int spio; 601} states[] = { 602 { "idle", NULL, NULL, NULL, 0}, 603 { "unknown", NULL, NULL, NULL, 0}, 604 { "seldo", NULL, seldo_run, NULL, 0}, 605 { "seldi", NULL, seldi_run, NULL, 0}, 606 { "selto", NULL, selto_run, NULL, 0}, 607 { "busfree", NULL, busfree_run, NULL, 0}, 608 { "msgo", msgo_init, msgo_run, msgo_end, 1}, 609 { "cmd", cmd_init, cmd_run, cmd_end, 1}, 610 { "msgi", NULL, msgi_run, msgi_end, 1}, 611 { "status", NULL, status_run, NULL, 1}, 612 { "datai", datai_init, datai_run, datai_end, 0}, 613 { "datao", datao_init, datao_run, datao_end, 0}, 614 { "parerr", NULL, parerr_run, NULL, 0}, 615 { "rsti", NULL, rsti_run, NULL, 0}, 616}; 617 618/* setup & interrupt */ 619static irqreturn_t intr(int irq, void *dev_id); 620static void reset_ports(struct Scsi_Host *shpnt); 621static void aha152x_error(struct Scsi_Host *shpnt, char *msg); 622static void done(struct Scsi_Host *shpnt, int error); 623 624/* diagnostics */ 625static void show_command(struct scsi_cmnd * ptr); 626static void show_queues(struct Scsi_Host *shpnt); 627static void disp_enintr(struct Scsi_Host *shpnt); 628 629 630/* 631 * queue services: 632 * 633 */ 634static inline void append_SC(struct scsi_cmnd **SC, struct scsi_cmnd *new_SC) 635{ 636 struct scsi_cmnd *end; 637 638 SCNEXT(new_SC) = NULL; 639 if (!*SC) 640 *SC = new_SC; 641 else { 642 for (end = *SC; SCNEXT(end); end = SCNEXT(end)) 643 ; 644 SCNEXT(end) = new_SC; 645 } 646} 647 648static inline struct scsi_cmnd *remove_first_SC(struct scsi_cmnd ** SC) 649{ 650 struct scsi_cmnd *ptr; 651 652 ptr = *SC; 653 if (ptr) { 654 *SC = SCNEXT(*SC); 655 SCNEXT(ptr)=NULL; 656 } 657 return ptr; 658} 659 660static inline struct scsi_cmnd *remove_lun_SC(struct scsi_cmnd ** SC, 661 int target, int lun) 662{ 663 struct scsi_cmnd *ptr, *prev; 664 665 for (ptr = *SC, prev = NULL; 666 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun)); 667 prev = ptr, ptr = SCNEXT(ptr)) 668 ; 669 670 if (ptr) { 671 if (prev) 672 SCNEXT(prev) = SCNEXT(ptr); 673 else 674 *SC = SCNEXT(ptr); 675 676 SCNEXT(ptr)=NULL; 677 } 678 679 return ptr; 680} 681 682static inline struct scsi_cmnd *remove_SC(struct scsi_cmnd **SC, 683 struct scsi_cmnd *SCp) 684{ 685 struct scsi_cmnd *ptr, *prev; 686 687 for (ptr = *SC, prev = NULL; 688 ptr && SCp!=ptr; 689 prev = ptr, ptr = SCNEXT(ptr)) 690 ; 691 692 if (ptr) { 693 if (prev) 694 SCNEXT(prev) = SCNEXT(ptr); 695 else 696 *SC = SCNEXT(ptr); 697 698 SCNEXT(ptr)=NULL; 699 } 700 701 return ptr; 702} 703 704static irqreturn_t swintr(int irqno, void *dev_id) 705{ 706 struct Scsi_Host *shpnt = dev_id; 707 708 HOSTDATA(shpnt)->swint++; 709 710 SETPORT(DMACNTRL0, INTEN); 711 return IRQ_HANDLED; 712} 713 714struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup) 715{ 716 struct Scsi_Host *shpnt; 717 718 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata)); 719 if (!shpnt) { 720 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n"); 721 return NULL; 722 } 723 724 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt)); 725 INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list); 726 727 /* need to have host registered before triggering any interrupt */ 728 list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list); 729 730 shpnt->io_port = setup->io_port; 731 shpnt->n_io_port = IO_RANGE; 732 shpnt->irq = setup->irq; 733 734 if (!setup->tc1550) { 735 HOSTIOPORT0 = setup->io_port; 736 HOSTIOPORT1 = setup->io_port; 737 } else { 738 HOSTIOPORT0 = setup->io_port+0x10; 739 HOSTIOPORT1 = setup->io_port-0x10; 740 } 741 742 spin_lock_init(&QLOCK); 743 RECONNECT = setup->reconnect; 744 SYNCHRONOUS = setup->synchronous; 745 PARITY = setup->parity; 746 DELAY = setup->delay; 747 EXT_TRANS = setup->ext_trans; 748 749 SETPORT(SCSIID, setup->scsiid << 4); 750 shpnt->this_id = setup->scsiid; 751 752 if (setup->reconnect) 753 shpnt->can_queue = AHA152X_MAXQUEUE; 754 755 /* RESET OUT */ 756 printk("aha152x: resetting bus...\n"); 757 SETPORT(SCSISEQ, SCSIRSTO); 758 mdelay(256); 759 SETPORT(SCSISEQ, 0); 760 mdelay(DELAY); 761 762 reset_ports(shpnt); 763 764 printk(KERN_INFO 765 "aha152x%d%s: " 766 "vital data: rev=%x, " 767 "io=0x%03lx (0x%03lx/0x%03lx), " 768 "irq=%d, " 769 "scsiid=%d, " 770 "reconnect=%s, " 771 "parity=%s, " 772 "synchronous=%s, " 773 "delay=%d, " 774 "extended translation=%s\n", 775 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "", 776 GETPORT(REV) & 0x7, 777 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1, 778 shpnt->irq, 779 shpnt->this_id, 780 RECONNECT ? "enabled" : "disabled", 781 PARITY ? "enabled" : "disabled", 782 SYNCHRONOUS ? "enabled" : "disabled", 783 DELAY, 784 EXT_TRANS ? "enabled" : "disabled"); 785 786 /* not expecting any interrupts */ 787 SETPORT(SIMODE0, 0); 788 SETPORT(SIMODE1, 0); 789 790 if (request_irq(shpnt->irq, swintr, IRQF_SHARED, "aha152x", shpnt)) { 791 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq); 792 goto out_host_put; 793 } 794 795 HOSTDATA(shpnt)->swint = 0; 796 797 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no); 798 799 mb(); 800 SETPORT(DMACNTRL0, SWINT|INTEN); 801 mdelay(1000); 802 free_irq(shpnt->irq, shpnt); 803 804 if (!HOSTDATA(shpnt)->swint) { 805 if (TESTHI(DMASTAT, INTSTAT)) { 806 printk("lost.\n"); 807 } else { 808 printk("failed.\n"); 809 } 810 811 SETPORT(DMACNTRL0, INTEN); 812 813 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. " 814 "Please verify.\n", shpnt->host_no, shpnt->irq); 815 goto out_host_put; 816 } 817 printk("ok.\n"); 818 819 820 /* clear interrupts */ 821 SETPORT(SSTAT0, 0x7f); 822 SETPORT(SSTAT1, 0xef); 823 824 if (request_irq(shpnt->irq, intr, IRQF_SHARED, "aha152x", shpnt)) { 825 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq); 826 goto out_host_put; 827 } 828 829 if( scsi_add_host(shpnt, NULL) ) { 830 free_irq(shpnt->irq, shpnt); 831 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no); 832 goto out_host_put; 833 } 834 835 scsi_scan_host(shpnt); 836 837 return shpnt; 838 839out_host_put: 840 list_del(&HOSTDATA(shpnt)->host_list); 841 scsi_host_put(shpnt); 842 843 return NULL; 844} 845 846void aha152x_release(struct Scsi_Host *shpnt) 847{ 848 if (!shpnt) 849 return; 850 851 scsi_remove_host(shpnt); 852 if (shpnt->irq) 853 free_irq(shpnt->irq, shpnt); 854 855#if !defined(AHA152X_PCMCIA) 856 if (shpnt->io_port) 857 release_region(shpnt->io_port, IO_RANGE); 858#endif 859 860#ifdef __ISAPNP__ 861 if (HOSTDATA(shpnt)->pnpdev) 862 pnp_device_detach(HOSTDATA(shpnt)->pnpdev); 863#endif 864 865 list_del(&HOSTDATA(shpnt)->host_list); 866 scsi_host_put(shpnt); 867} 868 869 870/* 871 * setup controller to generate interrupts depending 872 * on current state (lock has to be acquired) 873 * 874 */ 875static int setup_expected_interrupts(struct Scsi_Host *shpnt) 876{ 877 if(CURRENT_SC) { 878 CURRENT_SC->SCp.phase |= 1 << 16; 879 880 if(CURRENT_SC->SCp.phase & selecting) { 881 SETPORT(SSTAT1, SELTO); 882 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0)); 883 SETPORT(SIMODE1, ENSELTIMO); 884 } else { 885 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0); 886 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 887 } 888 } else if(STATE==seldi) { 889 SETPORT(SIMODE0, 0); 890 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 891 } else { 892 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0); 893 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0)); 894 } 895 896 if(!HOSTDATA(shpnt)->in_intr) 897 SETBITS(DMACNTRL0, INTEN); 898 899 return TESTHI(DMASTAT, INTSTAT); 900} 901 902 903/* 904 * Queue a command and setup interrupts for a free bus. 905 */ 906static int aha152x_internal_queue(struct scsi_cmnd *SCpnt, 907 struct completion *complete, 908 int phase, void (*done)(struct scsi_cmnd *)) 909{ 910 struct Scsi_Host *shpnt = SCpnt->device->host; 911 unsigned long flags; 912 913 SCpnt->scsi_done = done; 914 SCpnt->SCp.phase = not_issued | phase; 915 SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */ 916 SCpnt->SCp.Message = 0; 917 SCpnt->SCp.have_data_in = 0; 918 SCpnt->SCp.sent_command = 0; 919 920 if(SCpnt->SCp.phase & (resetting|check_condition)) { 921 if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) { 922 scmd_printk(KERN_ERR, SCpnt, "cannot reuse command\n"); 923 return FAILED; 924 } 925 } else { 926 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC); 927 if(!SCpnt->host_scribble) { 928 scmd_printk(KERN_ERR, SCpnt, "allocation failed\n"); 929 return FAILED; 930 } 931 } 932 933 SCNEXT(SCpnt) = NULL; 934 SCSEM(SCpnt) = complete; 935 936 /* setup scratch area 937 SCp.ptr : buffer pointer 938 SCp.this_residual : buffer length 939 SCp.buffer : next buffer 940 SCp.phase : current state of the command */ 941 942 if ((phase & resetting) || !scsi_sglist(SCpnt)) { 943 SCpnt->SCp.ptr = NULL; 944 SCpnt->SCp.this_residual = 0; 945 scsi_set_resid(SCpnt, 0); 946 SCpnt->SCp.buffer = NULL; 947 } else { 948 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); 949 SCpnt->SCp.buffer = scsi_sglist(SCpnt); 950 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer); 951 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; 952 } 953 954 DO_LOCK(flags); 955 956#if defined(AHA152X_STAT) 957 HOSTDATA(shpnt)->total_commands++; 958#endif 959 960 /* Turn led on, when this is the first command. */ 961 HOSTDATA(shpnt)->commands++; 962 if (HOSTDATA(shpnt)->commands==1) 963 SETPORT(PORTA, 1); 964 965 append_SC(&ISSUE_SC, SCpnt); 966 967 if(!HOSTDATA(shpnt)->in_intr) 968 setup_expected_interrupts(shpnt); 969 970 DO_UNLOCK(flags); 971 972 return 0; 973} 974 975/* 976 * queue a command 977 * 978 */ 979static int aha152x_queue_lck(struct scsi_cmnd *SCpnt, 980 void (*done)(struct scsi_cmnd *)) 981{ 982 return aha152x_internal_queue(SCpnt, NULL, 0, done); 983} 984 985static DEF_SCSI_QCMD(aha152x_queue) 986 987 988/* 989 * 990 */ 991static void reset_done(struct scsi_cmnd *SCpnt) 992{ 993 if(SCSEM(SCpnt)) { 994 complete(SCSEM(SCpnt)); 995 } else { 996 printk(KERN_ERR "aha152x: reset_done w/o completion\n"); 997 } 998} 999 1000/* 1001 * Abort a command 1002 * 1003 */ 1004static int aha152x_abort(struct scsi_cmnd *SCpnt) 1005{ 1006 struct Scsi_Host *shpnt = SCpnt->device->host; 1007 struct scsi_cmnd *ptr; 1008 unsigned long flags; 1009 1010 DO_LOCK(flags); 1011 1012 ptr=remove_SC(&ISSUE_SC, SCpnt); 1013 1014 if(ptr) { 1015 HOSTDATA(shpnt)->commands--; 1016 if (!HOSTDATA(shpnt)->commands) 1017 SETPORT(PORTA, 0); 1018 DO_UNLOCK(flags); 1019 1020 kfree(SCpnt->host_scribble); 1021 SCpnt->host_scribble=NULL; 1022 1023 return SUCCESS; 1024 } 1025 1026 DO_UNLOCK(flags); 1027 1028 /* 1029 * FIXME: 1030 * for current command: queue ABORT for message out and raise ATN 1031 * for disconnected command: pseudo SC with ABORT message or ABORT on reselection? 1032 * 1033 */ 1034 1035 scmd_printk(KERN_ERR, SCpnt, 1036 "cannot abort running or disconnected command\n"); 1037 1038 return FAILED; 1039} 1040 1041/* 1042 * Reset a device 1043 * 1044 */ 1045static int aha152x_device_reset(struct scsi_cmnd * SCpnt) 1046{ 1047 struct Scsi_Host *shpnt = SCpnt->device->host; 1048 DECLARE_COMPLETION(done); 1049 int ret, issued, disconnected; 1050 unsigned char old_cmd_len = SCpnt->cmd_len; 1051 unsigned long flags; 1052 unsigned long timeleft; 1053 1054 if(CURRENT_SC==SCpnt) { 1055 scmd_printk(KERN_ERR, SCpnt, "cannot reset current device\n"); 1056 return FAILED; 1057 } 1058 1059 DO_LOCK(flags); 1060 issued = remove_SC(&ISSUE_SC, SCpnt) == NULL; 1061 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt); 1062 DO_UNLOCK(flags); 1063 1064 SCpnt->cmd_len = 0; 1065 1066 aha152x_internal_queue(SCpnt, &done, resetting, reset_done); 1067 1068 timeleft = wait_for_completion_timeout(&done, 100*HZ); 1069 if (!timeleft) { 1070 /* remove command from issue queue */ 1071 DO_LOCK(flags); 1072 remove_SC(&ISSUE_SC, SCpnt); 1073 DO_UNLOCK(flags); 1074 } 1075 1076 SCpnt->cmd_len = old_cmd_len; 1077 1078 DO_LOCK(flags); 1079 1080 if(SCpnt->SCp.phase & resetted) { 1081 HOSTDATA(shpnt)->commands--; 1082 if (!HOSTDATA(shpnt)->commands) 1083 SETPORT(PORTA, 0); 1084 kfree(SCpnt->host_scribble); 1085 SCpnt->host_scribble=NULL; 1086 1087 ret = SUCCESS; 1088 } else { 1089 /* requeue */ 1090 if(!issued) { 1091 append_SC(&ISSUE_SC, SCpnt); 1092 } else if(disconnected) { 1093 append_SC(&DISCONNECTED_SC, SCpnt); 1094 } 1095 1096 ret = FAILED; 1097 } 1098 1099 DO_UNLOCK(flags); 1100 return ret; 1101} 1102 1103static void free_hard_reset_SCs(struct Scsi_Host *shpnt, 1104 struct scsi_cmnd **SCs) 1105{ 1106 struct scsi_cmnd *ptr; 1107 1108 ptr=*SCs; 1109 while(ptr) { 1110 struct scsi_cmnd *next; 1111 1112 if(SCDATA(ptr)) { 1113 next = SCNEXT(ptr); 1114 } else { 1115 scmd_printk(KERN_DEBUG, ptr, 1116 "queue corrupted at %p\n", ptr); 1117 next = NULL; 1118 } 1119 1120 if (!ptr->device->soft_reset) { 1121 remove_SC(SCs, ptr); 1122 HOSTDATA(shpnt)->commands--; 1123 kfree(ptr->host_scribble); 1124 ptr->host_scribble=NULL; 1125 } 1126 1127 ptr = next; 1128 } 1129} 1130 1131/* 1132 * Reset the bus 1133 * 1134 * AIC-6260 has a hard reset (MRST signal), but apparently 1135 * one cannot trigger it via software. So live with 1136 * a soft reset; no-one seemed to have cared. 1137 */ 1138static int aha152x_bus_reset_host(struct Scsi_Host *shpnt) 1139{ 1140 unsigned long flags; 1141 1142 DO_LOCK(flags); 1143 1144 free_hard_reset_SCs(shpnt, &ISSUE_SC); 1145 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC); 1146 1147 SETPORT(SCSISEQ, SCSIRSTO); 1148 mdelay(256); 1149 SETPORT(SCSISEQ, 0); 1150 mdelay(DELAY); 1151 1152 setup_expected_interrupts(shpnt); 1153 if(HOSTDATA(shpnt)->commands==0) 1154 SETPORT(PORTA, 0); 1155 1156 DO_UNLOCK(flags); 1157 1158 return SUCCESS; 1159} 1160 1161/* 1162 * Reset the bus 1163 * 1164 */ 1165static int aha152x_bus_reset(struct scsi_cmnd *SCpnt) 1166{ 1167 return aha152x_bus_reset_host(SCpnt->device->host); 1168} 1169 1170/* 1171 * Restore default values to the AIC-6260 registers and reset the fifos 1172 * 1173 */ 1174static void reset_ports(struct Scsi_Host *shpnt) 1175{ 1176 unsigned long flags; 1177 1178 /* disable interrupts */ 1179 SETPORT(DMACNTRL0, RSTFIFO); 1180 1181 SETPORT(SCSISEQ, 0); 1182 1183 SETPORT(SXFRCTL1, 0); 1184 SETPORT(SCSISIG, 0); 1185 SETRATE(0); 1186 1187 /* clear all interrupt conditions */ 1188 SETPORT(SSTAT0, 0x7f); 1189 SETPORT(SSTAT1, 0xef); 1190 1191 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR); 1192 1193 SETPORT(DMACNTRL0, 0); 1194 SETPORT(DMACNTRL1, 0); 1195 1196 SETPORT(BRSTCNTRL, 0xf1); 1197 1198 /* clear SCSI fifos and transfer count */ 1199 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 1200 SETPORT(SXFRCTL0, CH1); 1201 1202 DO_LOCK(flags); 1203 setup_expected_interrupts(shpnt); 1204 DO_UNLOCK(flags); 1205} 1206 1207/* 1208 * Reset the host (bus and controller) 1209 * 1210 */ 1211int aha152x_host_reset_host(struct Scsi_Host *shpnt) 1212{ 1213 aha152x_bus_reset_host(shpnt); 1214 reset_ports(shpnt); 1215 1216 return SUCCESS; 1217} 1218 1219/* 1220 * Return the "logical geometry" 1221 * 1222 */ 1223static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev, 1224 sector_t capacity, int *info_array) 1225{ 1226 struct Scsi_Host *shpnt = sdev->host; 1227 1228 /* try default translation */ 1229 info_array[0] = 64; 1230 info_array[1] = 32; 1231 info_array[2] = (unsigned long)capacity / (64 * 32); 1232 1233 /* for disks >1GB do some guessing */ 1234 if (info_array[2] >= 1024) { 1235 int info[3]; 1236 1237 /* try to figure out the geometry from the partition table */ 1238 if (scsicam_bios_param(bdev, capacity, info) < 0 || 1239 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) { 1240 if (EXT_TRANS) { 1241 printk(KERN_NOTICE 1242 "aha152x: unable to verify geometry for disk with >1GB.\n" 1243 " using extended translation.\n"); 1244 info_array[0] = 255; 1245 info_array[1] = 63; 1246 info_array[2] = (unsigned long)capacity / (255 * 63); 1247 } else { 1248 printk(KERN_NOTICE 1249 "aha152x: unable to verify geometry for disk with >1GB.\n" 1250 " Using default translation. Please verify yourself.\n" 1251 " Perhaps you need to enable extended translation in the driver.\n" 1252 " See Documentation/scsi/aha152x.rst for details.\n"); 1253 } 1254 } else { 1255 info_array[0] = info[0]; 1256 info_array[1] = info[1]; 1257 info_array[2] = info[2]; 1258 1259 if (info[0] == 255 && !EXT_TRANS) { 1260 printk(KERN_NOTICE 1261 "aha152x: current partition table is using extended translation.\n" 1262 " using it also, although it's not explicitly enabled.\n"); 1263 } 1264 } 1265 } 1266 1267 return 0; 1268} 1269 1270/* 1271 * Internal done function 1272 * 1273 */ 1274static void done(struct Scsi_Host *shpnt, int error) 1275{ 1276 if (CURRENT_SC) { 1277 if(DONE_SC) 1278 scmd_printk(KERN_ERR, CURRENT_SC, 1279 "there's already a completed command %p " 1280 "- will cause abort\n", DONE_SC); 1281 1282 DONE_SC = CURRENT_SC; 1283 CURRENT_SC = NULL; 1284 DONE_SC->result = error; 1285 } else 1286 printk(KERN_ERR "aha152x: done() called outside of command\n"); 1287} 1288 1289static struct work_struct aha152x_tq; 1290 1291/* 1292 * Run service completions on the card with interrupts enabled. 1293 * 1294 */ 1295static void run(struct work_struct *work) 1296{ 1297 struct aha152x_hostdata *hd; 1298 1299 list_for_each_entry(hd, &aha152x_host_list, host_list) { 1300 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); 1301 1302 is_complete(shost); 1303 } 1304} 1305 1306/* 1307 * Interrupt handler 1308 * 1309 */ 1310static irqreturn_t intr(int irqno, void *dev_id) 1311{ 1312 struct Scsi_Host *shpnt = dev_id; 1313 unsigned long flags; 1314 unsigned char rev, dmacntrl0; 1315 1316 /* 1317 * Read a couple of registers that are known to not be all 1's. If 1318 * we read all 1's (-1), that means that either: 1319 * 1320 * a. The host adapter chip has gone bad, and we cannot control it, 1321 * OR 1322 * b. The host adapter is a PCMCIA card that has been ejected 1323 * 1324 * In either case, we cannot do anything with the host adapter at 1325 * this point in time. So just ignore the interrupt and return. 1326 * In the latter case, the interrupt might actually be meant for 1327 * someone else sharing this IRQ, and that driver will handle it. 1328 */ 1329 rev = GETPORT(REV); 1330 dmacntrl0 = GETPORT(DMACNTRL0); 1331 if ((rev == 0xFF) && (dmacntrl0 == 0xFF)) 1332 return IRQ_NONE; 1333 1334 if( TESTLO(DMASTAT, INTSTAT) ) 1335 return IRQ_NONE; 1336 1337 /* no more interrupts from the controller, while we're busy. 1338 INTEN is restored by the BH handler */ 1339 CLRBITS(DMACNTRL0, INTEN); 1340 1341 DO_LOCK(flags); 1342 if( HOSTDATA(shpnt)->service==0 ) { 1343 HOSTDATA(shpnt)->service=1; 1344 1345 /* Poke the BH handler */ 1346 INIT_WORK(&aha152x_tq, run); 1347 schedule_work(&aha152x_tq); 1348 } 1349 DO_UNLOCK(flags); 1350 1351 return IRQ_HANDLED; 1352} 1353 1354/* 1355 * busfree phase 1356 * - handle completition/disconnection/error of current command 1357 * - start selection for next command (if any) 1358 */ 1359static void busfree_run(struct Scsi_Host *shpnt) 1360{ 1361 unsigned long flags; 1362#if defined(AHA152X_STAT) 1363 int action=0; 1364#endif 1365 1366 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 1367 SETPORT(SXFRCTL0, CH1); 1368 1369 SETPORT(SSTAT1, CLRBUSFREE); 1370 1371 if(CURRENT_SC) { 1372#if defined(AHA152X_STAT) 1373 action++; 1374#endif 1375 CURRENT_SC->SCp.phase &= ~syncneg; 1376 1377 if(CURRENT_SC->SCp.phase & completed) { 1378 /* target sent COMMAND COMPLETE */ 1379 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16)); 1380 1381 } else if(CURRENT_SC->SCp.phase & aborted) { 1382 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16)); 1383 1384 } else if(CURRENT_SC->SCp.phase & resetted) { 1385 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16)); 1386 1387 } else if(CURRENT_SC->SCp.phase & disconnected) { 1388 /* target sent DISCONNECT */ 1389#if defined(AHA152X_STAT) 1390 HOSTDATA(shpnt)->disconnections++; 1391#endif 1392 append_SC(&DISCONNECTED_SC, CURRENT_SC); 1393 CURRENT_SC->SCp.phase |= 1 << 16; 1394 CURRENT_SC = NULL; 1395 1396 } else { 1397 done(shpnt, DID_ERROR << 16); 1398 } 1399#if defined(AHA152X_STAT) 1400 } else { 1401 HOSTDATA(shpnt)->busfree_without_old_command++; 1402#endif 1403 } 1404 1405 DO_LOCK(flags); 1406 1407 if(DONE_SC) { 1408#if defined(AHA152X_STAT) 1409 action++; 1410#endif 1411 1412 if(DONE_SC->SCp.phase & check_condition) { 1413 struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC; 1414 struct aha152x_scdata *sc = SCDATA(cmd); 1415 1416 scsi_eh_restore_cmnd(cmd, &sc->ses); 1417 1418 cmd->SCp.Status = SAM_STAT_CHECK_CONDITION; 1419 1420 HOSTDATA(shpnt)->commands--; 1421 if (!HOSTDATA(shpnt)->commands) 1422 SETPORT(PORTA, 0); /* turn led off */ 1423 } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) { 1424#if defined(AHA152X_STAT) 1425 HOSTDATA(shpnt)->busfree_with_check_condition++; 1426#endif 1427 1428 if(!(DONE_SC->SCp.phase & not_issued)) { 1429 struct aha152x_scdata *sc; 1430 struct scsi_cmnd *ptr = DONE_SC; 1431 DONE_SC=NULL; 1432 1433 sc = SCDATA(ptr); 1434 /* It was allocated in aha152x_internal_queue? */ 1435 BUG_ON(!sc); 1436 scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0); 1437 1438 DO_UNLOCK(flags); 1439 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done); 1440 DO_LOCK(flags); 1441 } 1442 } 1443 1444 if(DONE_SC && DONE_SC->scsi_done) { 1445 struct scsi_cmnd *ptr = DONE_SC; 1446 DONE_SC=NULL; 1447 1448 /* turn led off, when no commands are in the driver */ 1449 HOSTDATA(shpnt)->commands--; 1450 if (!HOSTDATA(shpnt)->commands) 1451 SETPORT(PORTA, 0); /* turn led off */ 1452 1453 if(ptr->scsi_done != reset_done) { 1454 kfree(ptr->host_scribble); 1455 ptr->host_scribble=NULL; 1456 } 1457 1458 DO_UNLOCK(flags); 1459 ptr->scsi_done(ptr); 1460 DO_LOCK(flags); 1461 } 1462 1463 DONE_SC=NULL; 1464#if defined(AHA152X_STAT) 1465 } else { 1466 HOSTDATA(shpnt)->busfree_without_done_command++; 1467#endif 1468 } 1469 1470 if(ISSUE_SC) 1471 CURRENT_SC = remove_first_SC(&ISSUE_SC); 1472 1473 DO_UNLOCK(flags); 1474 1475 if(CURRENT_SC) { 1476#if defined(AHA152X_STAT) 1477 action++; 1478#endif 1479 CURRENT_SC->SCp.phase |= selecting; 1480 1481 /* clear selection timeout */ 1482 SETPORT(SSTAT1, SELTO); 1483 1484 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id); 1485 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER); 1486 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0)); 1487 } else { 1488#if defined(AHA152X_STAT) 1489 HOSTDATA(shpnt)->busfree_without_new_command++; 1490#endif 1491 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0); 1492 } 1493 1494#if defined(AHA152X_STAT) 1495 if(!action) 1496 HOSTDATA(shpnt)->busfree_without_any_action++; 1497#endif 1498} 1499 1500/* 1501 * Selection done (OUT) 1502 * - queue IDENTIFY message and SDTR to selected target for message out 1503 * (ATN asserted automagically via ENAUTOATNO in busfree()) 1504 */ 1505static void seldo_run(struct Scsi_Host *shpnt) 1506{ 1507 SETPORT(SCSISIG, 0); 1508 SETPORT(SSTAT1, CLRBUSFREE); 1509 SETPORT(SSTAT1, CLRPHASECHG); 1510 1511 CURRENT_SC->SCp.phase &= ~(selecting|not_issued); 1512 1513 SETPORT(SCSISEQ, 0); 1514 1515 if (TESTLO(SSTAT0, SELDO)) { 1516 scmd_printk(KERN_ERR, CURRENT_SC, 1517 "aha152x: passing bus free condition\n"); 1518 done(shpnt, DID_NO_CONNECT << 16); 1519 return; 1520 } 1521 1522 SETPORT(SSTAT0, CLRSELDO); 1523 1524 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); 1525 1526 if (CURRENT_SC->SCp.phase & aborting) { 1527 ADDMSGO(ABORT); 1528 } else if (CURRENT_SC->SCp.phase & resetting) { 1529 ADDMSGO(BUS_DEVICE_RESET); 1530 } else if (SYNCNEG==0 && SYNCHRONOUS) { 1531 CURRENT_SC->SCp.phase |= syncneg; 1532 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8); 1533 SYNCNEG=1; /* negotiation in progress */ 1534 } 1535 1536 SETRATE(SYNCRATE); 1537} 1538 1539/* 1540 * Selection timeout 1541 * - return command to mid-level with failure cause 1542 * 1543 */ 1544static void selto_run(struct Scsi_Host *shpnt) 1545{ 1546 SETPORT(SCSISEQ, 0); 1547 SETPORT(SSTAT1, CLRSELTIMO); 1548 1549 if (!CURRENT_SC) 1550 return; 1551 1552 CURRENT_SC->SCp.phase &= ~selecting; 1553 1554 if (CURRENT_SC->SCp.phase & aborted) 1555 done(shpnt, DID_ABORT << 16); 1556 else if (TESTLO(SSTAT0, SELINGO)) 1557 done(shpnt, DID_BUS_BUSY << 16); 1558 else 1559 /* ARBITRATION won, but SELECTION failed */ 1560 done(shpnt, DID_NO_CONNECT << 16); 1561} 1562 1563/* 1564 * Selection in done 1565 * - put current command back to issue queue 1566 * (reconnection of a disconnected nexus instead 1567 * of successful selection out) 1568 * 1569 */ 1570static void seldi_run(struct Scsi_Host *shpnt) 1571{ 1572 int selid; 1573 int target; 1574 unsigned long flags; 1575 1576 SETPORT(SCSISIG, 0); 1577 SETPORT(SSTAT0, CLRSELDI); 1578 SETPORT(SSTAT1, CLRBUSFREE); 1579 SETPORT(SSTAT1, CLRPHASECHG); 1580 1581 if(CURRENT_SC) { 1582 if(!(CURRENT_SC->SCp.phase & not_issued)) 1583 scmd_printk(KERN_ERR, CURRENT_SC, 1584 "command should not have been issued yet\n"); 1585 1586 DO_LOCK(flags); 1587 append_SC(&ISSUE_SC, CURRENT_SC); 1588 DO_UNLOCK(flags); 1589 1590 CURRENT_SC = NULL; 1591 } 1592 1593 if (!DISCONNECTED_SC) 1594 return; 1595 1596 RECONN_TARGET=-1; 1597 1598 selid = GETPORT(SELID) & ~(1 << shpnt->this_id); 1599 1600 if (selid==0) { 1601 shost_printk(KERN_INFO, shpnt, 1602 "target id unknown (%02x)\n", selid); 1603 return; 1604 } 1605 1606 for(target=7; !(selid & (1 << target)); target--) 1607 ; 1608 1609 if(selid & ~(1 << target)) { 1610 shost_printk(KERN_INFO, shpnt, 1611 "multiple targets reconnected (%02x)\n", selid); 1612 } 1613 1614 1615 SETPORT(SCSIID, (shpnt->this_id << OID_) | target); 1616 SETPORT(SCSISEQ, 0); 1617 1618 SETRATE(HOSTDATA(shpnt)->syncrate[target]); 1619 1620 RECONN_TARGET=target; 1621} 1622 1623/* 1624 * message in phase 1625 * - handle initial message after reconnection to identify 1626 * reconnecting nexus 1627 * - queue command on DISCONNECTED_SC on DISCONNECT message 1628 * - set completed flag on COMMAND COMPLETE 1629 * (other completition code moved to busfree_run) 1630 * - handle response to SDTR 1631 * - clear synchronous transfer agreements on BUS RESET 1632 * 1633 * FIXME: what about SAVE POINTERS, RESTORE POINTERS? 1634 * 1635 */ 1636static void msgi_run(struct Scsi_Host *shpnt) 1637{ 1638 for(;;) { 1639 int sstat1 = GETPORT(SSTAT1); 1640 1641 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT)) 1642 return; 1643 1644 if (TESTLO(SSTAT0, SPIORDY)) 1645 return; 1646 1647 ADDMSGI(GETPORT(SCSIDAT)); 1648 1649 if(!CURRENT_SC) { 1650 if(LASTSTATE!=seldi) { 1651 shost_printk(KERN_ERR, shpnt, 1652 "message in w/o current command" 1653 " not after reselection\n"); 1654 } 1655 1656 /* 1657 * Handle reselection 1658 */ 1659 if(!(MSGI(0) & IDENTIFY_BASE)) { 1660 shost_printk(KERN_ERR, shpnt, 1661 "target didn't identify after reselection\n"); 1662 continue; 1663 } 1664 1665 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f); 1666 1667 if (!CURRENT_SC) { 1668 show_queues(shpnt); 1669 shost_printk(KERN_ERR, shpnt, 1670 "no disconnected command" 1671 " for target %d/%d\n", 1672 RECONN_TARGET, MSGI(0) & 0x3f); 1673 continue; 1674 } 1675 1676 CURRENT_SC->SCp.Message = MSGI(0); 1677 CURRENT_SC->SCp.phase &= ~disconnected; 1678 1679 MSGILEN=0; 1680 1681 /* next message if any */ 1682 continue; 1683 } 1684 1685 CURRENT_SC->SCp.Message = MSGI(0); 1686 1687 switch (MSGI(0)) { 1688 case DISCONNECT: 1689 if (!RECONNECT) 1690 scmd_printk(KERN_WARNING, CURRENT_SC, 1691 "target was not allowed to disconnect\n"); 1692 1693 CURRENT_SC->SCp.phase |= disconnected; 1694 break; 1695 1696 case COMMAND_COMPLETE: 1697 CURRENT_SC->SCp.phase |= completed; 1698 break; 1699 1700 case MESSAGE_REJECT: 1701 if (SYNCNEG==1) { 1702 scmd_printk(KERN_INFO, CURRENT_SC, 1703 "Synchronous Data Transfer Request" 1704 " was rejected\n"); 1705 SYNCNEG=2; /* negotiation completed */ 1706 } else 1707 scmd_printk(KERN_INFO, CURRENT_SC, 1708 "inbound message (MESSAGE REJECT)\n"); 1709 break; 1710 1711 case SAVE_POINTERS: 1712 break; 1713 1714 case RESTORE_POINTERS: 1715 break; 1716 1717 case EXTENDED_MESSAGE: 1718 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) { 1719 /* not yet completed */ 1720 continue; 1721 } 1722 1723 switch (MSGI(2)) { 1724 case EXTENDED_SDTR: 1725 { 1726 long ticks; 1727 1728 if (MSGI(1) != 3) { 1729 scmd_printk(KERN_ERR, CURRENT_SC, 1730 "SDTR message length!=3\n"); 1731 break; 1732 } 1733 1734 if (!HOSTDATA(shpnt)->synchronous) 1735 break; 1736 1737 printk(INFO_LEAD, CMDINFO(CURRENT_SC)); 1738 spi_print_msg(&MSGI(0)); 1739 printk("\n"); 1740 1741 ticks = (MSGI(3) * 4 + 49) / 50; 1742 1743 if (syncneg) { 1744 /* negotiation in progress */ 1745 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) { 1746 ADDMSGO(MESSAGE_REJECT); 1747 scmd_printk(KERN_INFO, 1748 CURRENT_SC, 1749 "received Synchronous Data Transfer Request invalid - rejected\n"); 1750 break; 1751 } 1752 1753 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); 1754 } else if (ticks <= 9 && MSGI(4) >= 1) { 1755 ADDMSGO(EXTENDED_MESSAGE); 1756 ADDMSGO(3); 1757 ADDMSGO(EXTENDED_SDTR); 1758 if (ticks < 4) { 1759 ticks = 4; 1760 ADDMSGO(50); 1761 } else 1762 ADDMSGO(MSGI(3)); 1763 1764 if (MSGI(4) > 8) 1765 MSGI(4) = 8; 1766 1767 ADDMSGO(MSGI(4)); 1768 1769 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); 1770 } else { 1771 /* requested SDTR is too slow, do it asynchronously */ 1772 scmd_printk(KERN_INFO, 1773 CURRENT_SC, 1774 "Synchronous Data Transfer Request too slow - Rejecting\n"); 1775 ADDMSGO(MESSAGE_REJECT); 1776 } 1777 1778 /* negotiation completed */ 1779 SYNCNEG=2; 1780 SETRATE(SYNCRATE); 1781 } 1782 break; 1783 1784 case BUS_DEVICE_RESET: 1785 { 1786 int i; 1787 1788 for(i=0; i<8; i++) { 1789 HOSTDATA(shpnt)->syncrate[i]=0; 1790 HOSTDATA(shpnt)->syncneg[i]=0; 1791 } 1792 1793 } 1794 break; 1795 1796 case EXTENDED_MODIFY_DATA_POINTER: 1797 case EXTENDED_EXTENDED_IDENTIFY: 1798 case EXTENDED_WDTR: 1799 default: 1800 ADDMSGO(MESSAGE_REJECT); 1801 break; 1802 } 1803 break; 1804 } 1805 1806 MSGILEN=0; 1807 } 1808} 1809 1810static void msgi_end(struct Scsi_Host *shpnt) 1811{ 1812 if(MSGILEN>0) 1813 scmd_printk(KERN_WARNING, CURRENT_SC, 1814 "target left before message completed (%d)\n", 1815 MSGILEN); 1816 1817 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) 1818 SETPORT(SCSISIG, P_MSGI | SIG_ATNO); 1819} 1820 1821/* 1822 * message out phase 1823 * 1824 */ 1825static void msgo_init(struct Scsi_Host *shpnt) 1826{ 1827 if(MSGOLEN==0) { 1828 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) { 1829 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); 1830 } else { 1831 scmd_printk(KERN_INFO, CURRENT_SC, 1832 "unexpected MESSAGE OUT phase; rejecting\n"); 1833 ADDMSGO(MESSAGE_REJECT); 1834 } 1835 } 1836 1837} 1838 1839/* 1840 * message out phase 1841 * 1842 */ 1843static void msgo_run(struct Scsi_Host *shpnt) 1844{ 1845 while(MSGO_I<MSGOLEN) { 1846 if (TESTLO(SSTAT0, SPIORDY)) 1847 return; 1848 1849 if (MSGO_I==MSGOLEN-1) { 1850 /* Leave MESSAGE OUT after transfer */ 1851 SETPORT(SSTAT1, CLRATNO); 1852 } 1853 1854 1855 if (MSGO(MSGO_I) & IDENTIFY_BASE) 1856 CURRENT_SC->SCp.phase |= identified; 1857 1858 if (MSGO(MSGO_I)==ABORT) 1859 CURRENT_SC->SCp.phase |= aborted; 1860 1861 if (MSGO(MSGO_I)==BUS_DEVICE_RESET) 1862 CURRENT_SC->SCp.phase |= resetted; 1863 1864 SETPORT(SCSIDAT, MSGO(MSGO_I++)); 1865 } 1866} 1867 1868static void msgo_end(struct Scsi_Host *shpnt) 1869{ 1870 if(MSGO_I<MSGOLEN) { 1871 scmd_printk(KERN_ERR, CURRENT_SC, 1872 "message sent incompletely (%d/%d)\n", 1873 MSGO_I, MSGOLEN); 1874 if(SYNCNEG==1) { 1875 scmd_printk(KERN_INFO, CURRENT_SC, 1876 "Synchronous Data Transfer Request was rejected\n"); 1877 SYNCNEG=2; 1878 } 1879 } 1880 1881 MSGO_I = 0; 1882 MSGOLEN = 0; 1883} 1884 1885/* 1886 * command phase 1887 * 1888 */ 1889static void cmd_init(struct Scsi_Host *shpnt) 1890{ 1891 if (CURRENT_SC->SCp.sent_command) { 1892 scmd_printk(KERN_ERR, CURRENT_SC, 1893 "command already sent\n"); 1894 done(shpnt, DID_ERROR << 16); 1895 return; 1896 } 1897 1898 CMD_I=0; 1899} 1900 1901/* 1902 * command phase 1903 * 1904 */ 1905static void cmd_run(struct Scsi_Host *shpnt) 1906{ 1907 while(CMD_I<CURRENT_SC->cmd_len) { 1908 if (TESTLO(SSTAT0, SPIORDY)) 1909 return; 1910 1911 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]); 1912 } 1913} 1914 1915static void cmd_end(struct Scsi_Host *shpnt) 1916{ 1917 if(CMD_I<CURRENT_SC->cmd_len) 1918 scmd_printk(KERN_ERR, CURRENT_SC, 1919 "command sent incompletely (%d/%d)\n", 1920 CMD_I, CURRENT_SC->cmd_len); 1921 else 1922 CURRENT_SC->SCp.sent_command++; 1923} 1924 1925/* 1926 * status phase 1927 * 1928 */ 1929static void status_run(struct Scsi_Host *shpnt) 1930{ 1931 if (TESTLO(SSTAT0, SPIORDY)) 1932 return; 1933 1934 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT); 1935 1936} 1937 1938/* 1939 * data in phase 1940 * 1941 */ 1942static void datai_init(struct Scsi_Host *shpnt) 1943{ 1944 SETPORT(DMACNTRL0, RSTFIFO); 1945 SETPORT(DMACNTRL0, RSTFIFO|ENDMA); 1946 1947 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 1948 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); 1949 1950 SETPORT(SIMODE0, 0); 1951 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE); 1952 1953 DATA_LEN=0; 1954} 1955 1956static void datai_run(struct Scsi_Host *shpnt) 1957{ 1958 unsigned long the_time; 1959 int fifodata, data_count; 1960 1961 /* 1962 * loop while the phase persists or the fifos are not empty 1963 * 1964 */ 1965 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) { 1966 /* FIXME: maybe this should be done by setting up 1967 * STCNT to trigger ENSWRAP interrupt, instead of 1968 * polling for DFIFOFULL 1969 */ 1970 the_time=jiffies + 100*HZ; 1971 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time)) 1972 barrier(); 1973 1974 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) { 1975 scmd_printk(KERN_ERR, CURRENT_SC, "datai timeout\n"); 1976 break; 1977 } 1978 1979 if(TESTHI(DMASTAT, DFIFOFULL)) { 1980 fifodata = 128; 1981 } else { 1982 the_time=jiffies + 100*HZ; 1983 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time)) 1984 barrier(); 1985 1986 if(TESTLO(SSTAT2, SEMPTY)) { 1987 scmd_printk(KERN_ERR, CURRENT_SC, 1988 "datai sempty timeout"); 1989 break; 1990 } 1991 1992 fifodata = GETPORT(FIFOSTAT); 1993 } 1994 1995 if(CURRENT_SC->SCp.this_residual>0) { 1996 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) { 1997 data_count = fifodata > CURRENT_SC->SCp.this_residual ? 1998 CURRENT_SC->SCp.this_residual : 1999 fifodata; 2000 fifodata -= data_count; 2001 2002 if (data_count & 1) { 2003 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2004 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT); 2005 CURRENT_SC->SCp.this_residual--; 2006 DATA_LEN++; 2007 SETPORT(DMACNTRL0, ENDMA); 2008 } 2009 2010 if (data_count > 1) { 2011 data_count >>= 1; 2012 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); 2013 CURRENT_SC->SCp.ptr += 2 * data_count; 2014 CURRENT_SC->SCp.this_residual -= 2 * data_count; 2015 DATA_LEN += 2 * data_count; 2016 } 2017 2018 if (CURRENT_SC->SCp.this_residual == 0 && 2019 !sg_is_last(CURRENT_SC->SCp.buffer)) { 2020 /* advance to next buffer */ 2021 CURRENT_SC->SCp.buffer = sg_next(CURRENT_SC->SCp.buffer); 2022 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); 2023 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; 2024 } 2025 } 2026 } else if (fifodata > 0) { 2027 scmd_printk(KERN_ERR, CURRENT_SC, 2028 "no buffers left for %d(%d) bytes" 2029 " (data overrun!?)\n", 2030 fifodata, GETPORT(FIFOSTAT)); 2031 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2032 while(fifodata>0) { 2033 GETPORT(DATAPORT); 2034 fifodata--; 2035 DATA_LEN++; 2036 } 2037 SETPORT(DMACNTRL0, ENDMA|_8BIT); 2038 } 2039 } 2040 2041 if(TESTLO(DMASTAT, INTSTAT) || 2042 TESTLO(DMASTAT, DFIFOEMP) || 2043 TESTLO(SSTAT2, SEMPTY) || 2044 GETPORT(FIFOSTAT)>0) { 2045 /* 2046 * something went wrong, if there's something left in the fifos 2047 * or the phase didn't change 2048 */ 2049 scmd_printk(KERN_ERR, CURRENT_SC, 2050 "fifos should be empty and phase should have changed\n"); 2051 } 2052 2053 if(DATA_LEN!=GETSTCNT()) { 2054 scmd_printk(KERN_ERR, CURRENT_SC, 2055 "manual transfer count differs from automatic " 2056 "(count=%d;stcnt=%d;diff=%d;fifostat=%d)", 2057 DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, 2058 GETPORT(FIFOSTAT)); 2059 mdelay(10000); 2060 } 2061} 2062 2063static void datai_end(struct Scsi_Host *shpnt) 2064{ 2065 CMD_INC_RESID(CURRENT_SC, -GETSTCNT()); 2066 2067 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 2068 SETPORT(DMACNTRL0, 0); 2069} 2070 2071/* 2072 * data out phase 2073 * 2074 */ 2075static void datao_init(struct Scsi_Host *shpnt) 2076{ 2077 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO); 2078 SETPORT(DMACNTRL0, WRITE_READ | ENDMA); 2079 2080 SETPORT(SXFRCTL0, CH1|CLRSTCNT); 2081 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); 2082 2083 SETPORT(SIMODE0, 0); 2084 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE ); 2085 2086 DATA_LEN = scsi_get_resid(CURRENT_SC); 2087} 2088 2089static void datao_run(struct Scsi_Host *shpnt) 2090{ 2091 unsigned long the_time; 2092 int data_count; 2093 2094 /* until phase changes or all data sent */ 2095 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) { 2096 data_count = 128; 2097 if(data_count > CURRENT_SC->SCp.this_residual) 2098 data_count=CURRENT_SC->SCp.this_residual; 2099 2100 if(TESTLO(DMASTAT, DFIFOEMP)) { 2101 scmd_printk(KERN_ERR, CURRENT_SC, 2102 "datao fifo not empty (%d)", 2103 GETPORT(FIFOSTAT)); 2104 break; 2105 } 2106 2107 if(data_count & 1) { 2108 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT); 2109 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++); 2110 CURRENT_SC->SCp.this_residual--; 2111 CMD_INC_RESID(CURRENT_SC, -1); 2112 SETPORT(DMACNTRL0,WRITE_READ|ENDMA); 2113 } 2114 2115 if(data_count > 1) { 2116 data_count >>= 1; 2117 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); 2118 CURRENT_SC->SCp.ptr += 2 * data_count; 2119 CURRENT_SC->SCp.this_residual -= 2 * data_count; 2120 CMD_INC_RESID(CURRENT_SC, -2 * data_count); 2121 } 2122 2123 if (CURRENT_SC->SCp.this_residual == 0 && 2124 !sg_is_last(CURRENT_SC->SCp.buffer)) { 2125 /* advance to next buffer */ 2126 CURRENT_SC->SCp.buffer = sg_next(CURRENT_SC->SCp.buffer); 2127 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); 2128 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; 2129 } 2130 2131 the_time=jiffies + 100*HZ; 2132 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time)) 2133 barrier(); 2134 2135 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) { 2136 scmd_printk(KERN_ERR, CURRENT_SC, "dataout timeout\n"); 2137 break; 2138 } 2139 } 2140} 2141 2142static void datao_end(struct Scsi_Host *shpnt) 2143{ 2144 if(TESTLO(DMASTAT, DFIFOEMP)) { 2145 u32 datao_cnt = GETSTCNT(); 2146 int datao_out = DATA_LEN - scsi_get_resid(CURRENT_SC); 2147 int done; 2148 struct scatterlist *sg = scsi_sglist(CURRENT_SC); 2149 2150 CMD_INC_RESID(CURRENT_SC, datao_out - datao_cnt); 2151 2152 done = scsi_bufflen(CURRENT_SC) - scsi_get_resid(CURRENT_SC); 2153 /* Locate the first SG entry not yet sent */ 2154 while (done > 0 && !sg_is_last(sg)) { 2155 if (done < sg->length) 2156 break; 2157 done -= sg->length; 2158 sg = sg_next(sg); 2159 } 2160 2161 CURRENT_SC->SCp.buffer = sg; 2162 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) + done; 2163 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length - 2164 done; 2165 } 2166 2167 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); 2168 SETPORT(SXFRCTL0, CH1); 2169 2170 SETPORT(DMACNTRL0, 0); 2171} 2172 2173/* 2174 * figure out what state we're in 2175 * 2176 */ 2177static int update_state(struct Scsi_Host *shpnt) 2178{ 2179 int dataphase=0; 2180 unsigned int stat0 = GETPORT(SSTAT0); 2181 unsigned int stat1 = GETPORT(SSTAT1); 2182 2183 PREVSTATE = STATE; 2184 STATE=unknown; 2185 2186 if(stat1 & SCSIRSTI) { 2187 STATE=rsti; 2188 SETPORT(SCSISEQ,0); 2189 SETPORT(SSTAT1,SCSIRSTI); 2190 } else if (stat0 & SELDI && PREVSTATE == busfree) { 2191 STATE=seldi; 2192 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) { 2193 STATE=seldo; 2194 } else if(stat1 & SELTO) { 2195 STATE=selto; 2196 } else if(stat1 & BUSFREE) { 2197 STATE=busfree; 2198 SETPORT(SSTAT1,BUSFREE); 2199 } else if(stat1 & SCSIPERR) { 2200 STATE=parerr; 2201 SETPORT(SSTAT1,SCSIPERR); 2202 } else if(stat1 & REQINIT) { 2203 switch(GETPORT(SCSISIG) & P_MASK) { 2204 case P_MSGI: STATE=msgi; break; 2205 case P_MSGO: STATE=msgo; break; 2206 case P_DATAO: STATE=datao; break; 2207 case P_DATAI: STATE=datai; break; 2208 case P_STATUS: STATE=status; break; 2209 case P_CMD: STATE=cmd; break; 2210 } 2211 dataphase=1; 2212 } 2213 2214 if((stat0 & SELDI) && STATE!=seldi && !dataphase) { 2215 scmd_printk(KERN_INFO, CURRENT_SC, "reselection missed?"); 2216 } 2217 2218 if(STATE!=PREVSTATE) { 2219 LASTSTATE=PREVSTATE; 2220 } 2221 2222 return dataphase; 2223} 2224 2225/* 2226 * handle parity error 2227 * 2228 * FIXME: in which phase? 2229 * 2230 */ 2231static void parerr_run(struct Scsi_Host *shpnt) 2232{ 2233 scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n"); 2234 done(shpnt, DID_PARITY << 16); 2235} 2236 2237/* 2238 * handle reset in 2239 * 2240 */ 2241static void rsti_run(struct Scsi_Host *shpnt) 2242{ 2243 struct scsi_cmnd *ptr; 2244 2245 shost_printk(KERN_NOTICE, shpnt, "scsi reset in\n"); 2246 2247 ptr=DISCONNECTED_SC; 2248 while(ptr) { 2249 struct scsi_cmnd *next = SCNEXT(ptr); 2250 2251 if (!ptr->device->soft_reset) { 2252 remove_SC(&DISCONNECTED_SC, ptr); 2253 2254 kfree(ptr->host_scribble); 2255 ptr->host_scribble=NULL; 2256 2257 ptr->result = DID_RESET << 16; 2258 ptr->scsi_done(ptr); 2259 } 2260 2261 ptr = next; 2262 } 2263 2264 if(CURRENT_SC && !CURRENT_SC->device->soft_reset) 2265 done(shpnt, DID_RESET << 16 ); 2266} 2267 2268 2269/* 2270 * bottom-half handler 2271 * 2272 */ 2273static void is_complete(struct Scsi_Host *shpnt) 2274{ 2275 int dataphase; 2276 unsigned long flags; 2277 int pending; 2278 2279 if(!shpnt) 2280 return; 2281 2282 DO_LOCK(flags); 2283 2284 if( HOSTDATA(shpnt)->service==0 ) { 2285 DO_UNLOCK(flags); 2286 return; 2287 } 2288 2289 HOSTDATA(shpnt)->service = 0; 2290 2291 if(HOSTDATA(shpnt)->in_intr) { 2292 DO_UNLOCK(flags); 2293 /* aha152x_error never returns.. */ 2294 aha152x_error(shpnt, "bottom-half already running!?"); 2295 } 2296 HOSTDATA(shpnt)->in_intr++; 2297 2298 /* 2299 * loop while there are interrupt conditions pending 2300 * 2301 */ 2302 do { 2303 unsigned long start = jiffies; 2304 DO_UNLOCK(flags); 2305 2306 dataphase=update_state(shpnt); 2307 2308 /* 2309 * end previous state 2310 * 2311 */ 2312 if(PREVSTATE!=STATE && states[PREVSTATE].end) 2313 states[PREVSTATE].end(shpnt); 2314 2315 /* 2316 * disable SPIO mode if previous phase used it 2317 * and this one doesn't 2318 * 2319 */ 2320 if(states[PREVSTATE].spio && !states[STATE].spio) { 2321 SETPORT(SXFRCTL0, CH1); 2322 SETPORT(DMACNTRL0, 0); 2323 if(CURRENT_SC) 2324 CURRENT_SC->SCp.phase &= ~spiordy; 2325 } 2326 2327 /* 2328 * accept current dataphase phase 2329 * 2330 */ 2331 if(dataphase) { 2332 SETPORT(SSTAT0, REQINIT); 2333 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK); 2334 SETPORT(SSTAT1, PHASECHG); 2335 } 2336 2337 /* 2338 * enable SPIO mode if previous didn't use it 2339 * and this one does 2340 * 2341 */ 2342 if(!states[PREVSTATE].spio && states[STATE].spio) { 2343 SETPORT(DMACNTRL0, 0); 2344 SETPORT(SXFRCTL0, CH1|SPIOEN); 2345 if(CURRENT_SC) 2346 CURRENT_SC->SCp.phase |= spiordy; 2347 } 2348 2349 /* 2350 * initialize for new state 2351 * 2352 */ 2353 if(PREVSTATE!=STATE && states[STATE].init) 2354 states[STATE].init(shpnt); 2355 2356 /* 2357 * handle current state 2358 * 2359 */ 2360 if(states[STATE].run) 2361 states[STATE].run(shpnt); 2362 else 2363 scmd_printk(KERN_ERR, CURRENT_SC, 2364 "unexpected state (%x)\n", STATE); 2365 2366 /* 2367 * setup controller to interrupt on 2368 * the next expected condition and 2369 * loop if it's already there 2370 * 2371 */ 2372 DO_LOCK(flags); 2373 pending=setup_expected_interrupts(shpnt); 2374#if defined(AHA152X_STAT) 2375 HOSTDATA(shpnt)->count[STATE]++; 2376 if(PREVSTATE!=STATE) 2377 HOSTDATA(shpnt)->count_trans[STATE]++; 2378 HOSTDATA(shpnt)->time[STATE] += jiffies-start; 2379#endif 2380 2381 } while(pending); 2382 2383 /* 2384 * enable interrupts and leave bottom-half 2385 * 2386 */ 2387 HOSTDATA(shpnt)->in_intr--; 2388 SETBITS(DMACNTRL0, INTEN); 2389 DO_UNLOCK(flags); 2390} 2391 2392 2393/* 2394 * Dump the current driver status and panic 2395 */ 2396static void aha152x_error(struct Scsi_Host *shpnt, char *msg) 2397{ 2398 shost_printk(KERN_EMERG, shpnt, "%s\n", msg); 2399 show_queues(shpnt); 2400 panic("aha152x panic\n"); 2401} 2402 2403/* 2404 * display enabled interrupts 2405 */ 2406static void disp_enintr(struct Scsi_Host *shpnt) 2407{ 2408 int s0, s1; 2409 2410 s0 = GETPORT(SIMODE0); 2411 s1 = GETPORT(SIMODE1); 2412 2413 shost_printk(KERN_DEBUG, shpnt, 2414 "enabled interrupts (%s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", 2415 (s0 & ENSELDO) ? "ENSELDO " : "", 2416 (s0 & ENSELDI) ? "ENSELDI " : "", 2417 (s0 & ENSELINGO) ? "ENSELINGO " : "", 2418 (s0 & ENSWRAP) ? "ENSWRAP " : "", 2419 (s0 & ENSDONE) ? "ENSDONE " : "", 2420 (s0 & ENSPIORDY) ? "ENSPIORDY " : "", 2421 (s0 & ENDMADONE) ? "ENDMADONE " : "", 2422 (s1 & ENSELTIMO) ? "ENSELTIMO " : "", 2423 (s1 & ENATNTARG) ? "ENATNTARG " : "", 2424 (s1 & ENPHASEMIS) ? "ENPHASEMIS " : "", 2425 (s1 & ENBUSFREE) ? "ENBUSFREE " : "", 2426 (s1 & ENSCSIPERR) ? "ENSCSIPERR " : "", 2427 (s1 & ENPHASECHG) ? "ENPHASECHG " : "", 2428 (s1 & ENREQINIT) ? "ENREQINIT " : ""); 2429} 2430 2431/* 2432 * Show the command data of a command 2433 */ 2434static void show_command(struct scsi_cmnd *ptr) 2435{ 2436 scsi_print_command(ptr); 2437 scmd_printk(KERN_DEBUG, ptr, 2438 "request_bufflen=%d; resid=%d; " 2439 "phase |%s%s%s%s%s%s%s%s%s; next=0x%p", 2440 scsi_bufflen(ptr), scsi_get_resid(ptr), 2441 (ptr->SCp.phase & not_issued) ? "not issued|" : "", 2442 (ptr->SCp.phase & selecting) ? "selecting|" : "", 2443 (ptr->SCp.phase & identified) ? "identified|" : "", 2444 (ptr->SCp.phase & disconnected) ? "disconnected|" : "", 2445 (ptr->SCp.phase & completed) ? "completed|" : "", 2446 (ptr->SCp.phase & spiordy) ? "spiordy|" : "", 2447 (ptr->SCp.phase & syncneg) ? "syncneg|" : "", 2448 (ptr->SCp.phase & aborted) ? "aborted|" : "", 2449 (ptr->SCp.phase & resetted) ? "resetted|" : "", 2450 (SCDATA(ptr)) ? SCNEXT(ptr) : NULL); 2451} 2452 2453/* 2454 * Dump the queued data 2455 */ 2456static void show_queues(struct Scsi_Host *shpnt) 2457{ 2458 struct scsi_cmnd *ptr; 2459 unsigned long flags; 2460 2461 DO_LOCK(flags); 2462 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n"); 2463 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) 2464 show_command(ptr); 2465 DO_UNLOCK(flags); 2466 2467 printk(KERN_DEBUG "current_SC:\n"); 2468 if (CURRENT_SC) 2469 show_command(CURRENT_SC); 2470 else 2471 printk(KERN_DEBUG "none\n"); 2472 2473 printk(KERN_DEBUG "disconnected_SC:\n"); 2474 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL) 2475 show_command(ptr); 2476 2477 disp_enintr(shpnt); 2478} 2479 2480static void get_command(struct seq_file *m, struct scsi_cmnd * ptr) 2481{ 2482 int i; 2483 2484 seq_printf(m, "%p: target=%d; lun=%d; cmnd=( ", 2485 ptr, ptr->device->id, (u8)ptr->device->lun); 2486 2487 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++) 2488 seq_printf(m, "0x%02x ", ptr->cmnd[i]); 2489 2490 seq_printf(m, "); resid=%d; residual=%d; buffers=%d; phase |", 2491 scsi_get_resid(ptr), ptr->SCp.this_residual, 2492 sg_nents(ptr->SCp.buffer) - 1); 2493 2494 if (ptr->SCp.phase & not_issued) 2495 seq_puts(m, "not issued|"); 2496 if (ptr->SCp.phase & selecting) 2497 seq_puts(m, "selecting|"); 2498 if (ptr->SCp.phase & disconnected) 2499 seq_puts(m, "disconnected|"); 2500 if (ptr->SCp.phase & aborted) 2501 seq_puts(m, "aborted|"); 2502 if (ptr->SCp.phase & identified) 2503 seq_puts(m, "identified|"); 2504 if (ptr->SCp.phase & completed) 2505 seq_puts(m, "completed|"); 2506 if (ptr->SCp.phase & spiordy) 2507 seq_puts(m, "spiordy|"); 2508 if (ptr->SCp.phase & syncneg) 2509 seq_puts(m, "syncneg|"); 2510 seq_printf(m, "; next=0x%p\n", SCNEXT(ptr)); 2511} 2512 2513static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt) 2514{ 2515 int s; 2516 2517 seq_printf(m, "\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name); 2518 2519 s = GETPORT(SCSISEQ); 2520 seq_puts(m, "SCSISEQ( "); 2521 if (s & TEMODEO) 2522 seq_puts(m, "TARGET MODE "); 2523 if (s & ENSELO) 2524 seq_puts(m, "SELO "); 2525 if (s & ENSELI) 2526 seq_puts(m, "SELI "); 2527 if (s & ENRESELI) 2528 seq_puts(m, "RESELI "); 2529 if (s & ENAUTOATNO) 2530 seq_puts(m, "AUTOATNO "); 2531 if (s & ENAUTOATNI) 2532 seq_puts(m, "AUTOATNI "); 2533 if (s & ENAUTOATNP) 2534 seq_puts(m, "AUTOATNP "); 2535 if (s & SCSIRSTO) 2536 seq_puts(m, "SCSIRSTO "); 2537 seq_puts(m, ");"); 2538 2539 seq_puts(m, " SCSISIG("); 2540 s = GETPORT(SCSISIG); 2541 switch (s & P_MASK) { 2542 case P_DATAO: 2543 seq_puts(m, "DATA OUT"); 2544 break; 2545 case P_DATAI: 2546 seq_puts(m, "DATA IN"); 2547 break; 2548 case P_CMD: 2549 seq_puts(m, "COMMAND"); 2550 break; 2551 case P_STATUS: 2552 seq_puts(m, "STATUS"); 2553 break; 2554 case P_MSGO: 2555 seq_puts(m, "MESSAGE OUT"); 2556 break; 2557 case P_MSGI: 2558 seq_puts(m, "MESSAGE IN"); 2559 break; 2560 default: 2561 seq_puts(m, "*invalid*"); 2562 break; 2563 } 2564 2565 seq_puts(m, "); "); 2566 2567 seq_printf(m, "INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo"); 2568 2569 seq_puts(m, "SSTAT( "); 2570 s = GETPORT(SSTAT0); 2571 if (s & TARGET) 2572 seq_puts(m, "TARGET "); 2573 if (s & SELDO) 2574 seq_puts(m, "SELDO "); 2575 if (s & SELDI) 2576 seq_puts(m, "SELDI "); 2577 if (s & SELINGO) 2578 seq_puts(m, "SELINGO "); 2579 if (s & SWRAP) 2580 seq_puts(m, "SWRAP "); 2581 if (s & SDONE) 2582 seq_puts(m, "SDONE "); 2583 if (s & SPIORDY) 2584 seq_puts(m, "SPIORDY "); 2585 if (s & DMADONE) 2586 seq_puts(m, "DMADONE "); 2587 2588 s = GETPORT(SSTAT1); 2589 if (s & SELTO) 2590 seq_puts(m, "SELTO "); 2591 if (s & ATNTARG) 2592 seq_puts(m, "ATNTARG "); 2593 if (s & SCSIRSTI) 2594 seq_puts(m, "SCSIRSTI "); 2595 if (s & PHASEMIS) 2596 seq_puts(m, "PHASEMIS "); 2597 if (s & BUSFREE) 2598 seq_puts(m, "BUSFREE "); 2599 if (s & SCSIPERR) 2600 seq_puts(m, "SCSIPERR "); 2601 if (s & PHASECHG) 2602 seq_puts(m, "PHASECHG "); 2603 if (s & REQINIT) 2604 seq_puts(m, "REQINIT "); 2605 seq_puts(m, "); "); 2606 2607 2608 seq_puts(m, "SSTAT( "); 2609 2610 s = GETPORT(SSTAT0) & GETPORT(SIMODE0); 2611 2612 if (s & TARGET) 2613 seq_puts(m, "TARGET "); 2614 if (s & SELDO) 2615 seq_puts(m, "SELDO "); 2616 if (s & SELDI) 2617 seq_puts(m, "SELDI "); 2618 if (s & SELINGO) 2619 seq_puts(m, "SELINGO "); 2620 if (s & SWRAP) 2621 seq_puts(m, "SWRAP "); 2622 if (s & SDONE) 2623 seq_puts(m, "SDONE "); 2624 if (s & SPIORDY) 2625 seq_puts(m, "SPIORDY "); 2626 if (s & DMADONE) 2627 seq_puts(m, "DMADONE "); 2628 2629 s = GETPORT(SSTAT1) & GETPORT(SIMODE1); 2630 2631 if (s & SELTO) 2632 seq_puts(m, "SELTO "); 2633 if (s & ATNTARG) 2634 seq_puts(m, "ATNTARG "); 2635 if (s & SCSIRSTI) 2636 seq_puts(m, "SCSIRSTI "); 2637 if (s & PHASEMIS) 2638 seq_puts(m, "PHASEMIS "); 2639 if (s & BUSFREE) 2640 seq_puts(m, "BUSFREE "); 2641 if (s & SCSIPERR) 2642 seq_puts(m, "SCSIPERR "); 2643 if (s & PHASECHG) 2644 seq_puts(m, "PHASECHG "); 2645 if (s & REQINIT) 2646 seq_puts(m, "REQINIT "); 2647 seq_puts(m, "); "); 2648 2649 seq_puts(m, "SXFRCTL0( "); 2650 2651 s = GETPORT(SXFRCTL0); 2652 if (s & SCSIEN) 2653 seq_puts(m, "SCSIEN "); 2654 if (s & DMAEN) 2655 seq_puts(m, "DMAEN "); 2656 if (s & CH1) 2657 seq_puts(m, "CH1 "); 2658 if (s & CLRSTCNT) 2659 seq_puts(m, "CLRSTCNT "); 2660 if (s & SPIOEN) 2661 seq_puts(m, "SPIOEN "); 2662 if (s & CLRCH1) 2663 seq_puts(m, "CLRCH1 "); 2664 seq_puts(m, "); "); 2665 2666 seq_puts(m, "SIGNAL( "); 2667 2668 s = GETPORT(SCSISIG); 2669 if (s & SIG_ATNI) 2670 seq_puts(m, "ATNI "); 2671 if (s & SIG_SELI) 2672 seq_puts(m, "SELI "); 2673 if (s & SIG_BSYI) 2674 seq_puts(m, "BSYI "); 2675 if (s & SIG_REQI) 2676 seq_puts(m, "REQI "); 2677 if (s & SIG_ACKI) 2678 seq_puts(m, "ACKI "); 2679 seq_puts(m, "); "); 2680 2681 seq_printf(m, "SELID(%02x), ", GETPORT(SELID)); 2682 2683 seq_printf(m, "STCNT(%d), ", GETSTCNT()); 2684 2685 seq_puts(m, "SSTAT2( "); 2686 2687 s = GETPORT(SSTAT2); 2688 if (s & SOFFSET) 2689 seq_puts(m, "SOFFSET "); 2690 if (s & SEMPTY) 2691 seq_puts(m, "SEMPTY "); 2692 if (s & SFULL) 2693 seq_puts(m, "SFULL "); 2694 seq_printf(m, "); SFCNT (%d); ", s & (SFULL | SFCNT)); 2695 2696 s = GETPORT(SSTAT3); 2697 seq_printf(m, "SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f); 2698 2699 seq_puts(m, "SSTAT4( "); 2700 s = GETPORT(SSTAT4); 2701 if (s & SYNCERR) 2702 seq_puts(m, "SYNCERR "); 2703 if (s & FWERR) 2704 seq_puts(m, "FWERR "); 2705 if (s & FRERR) 2706 seq_puts(m, "FRERR "); 2707 seq_puts(m, "); "); 2708 2709 seq_puts(m, "DMACNTRL0( "); 2710 s = GETPORT(DMACNTRL0); 2711 seq_printf(m, "%s ", s & _8BIT ? "8BIT" : "16BIT"); 2712 seq_printf(m, "%s ", s & DMA ? "DMA" : "PIO"); 2713 seq_printf(m, "%s ", s & WRITE_READ ? "WRITE" : "READ"); 2714 if (s & ENDMA) 2715 seq_puts(m, "ENDMA "); 2716 if (s & INTEN) 2717 seq_puts(m, "INTEN "); 2718 if (s & RSTFIFO) 2719 seq_puts(m, "RSTFIFO "); 2720 if (s & SWINT) 2721 seq_puts(m, "SWINT "); 2722 seq_puts(m, "); "); 2723 2724 seq_puts(m, "DMASTAT( "); 2725 s = GETPORT(DMASTAT); 2726 if (s & ATDONE) 2727 seq_puts(m, "ATDONE "); 2728 if (s & WORDRDY) 2729 seq_puts(m, "WORDRDY "); 2730 if (s & DFIFOFULL) 2731 seq_puts(m, "DFIFOFULL "); 2732 if (s & DFIFOEMP) 2733 seq_puts(m, "DFIFOEMP "); 2734 seq_puts(m, ")\n"); 2735 2736 seq_puts(m, "enabled interrupts( "); 2737 2738 s = GETPORT(SIMODE0); 2739 if (s & ENSELDO) 2740 seq_puts(m, "ENSELDO "); 2741 if (s & ENSELDI) 2742 seq_puts(m, "ENSELDI "); 2743 if (s & ENSELINGO) 2744 seq_puts(m, "ENSELINGO "); 2745 if (s & ENSWRAP) 2746 seq_puts(m, "ENSWRAP "); 2747 if (s & ENSDONE) 2748 seq_puts(m, "ENSDONE "); 2749 if (s & ENSPIORDY) 2750 seq_puts(m, "ENSPIORDY "); 2751 if (s & ENDMADONE) 2752 seq_puts(m, "ENDMADONE "); 2753 2754 s = GETPORT(SIMODE1); 2755 if (s & ENSELTIMO) 2756 seq_puts(m, "ENSELTIMO "); 2757 if (s & ENATNTARG) 2758 seq_puts(m, "ENATNTARG "); 2759 if (s & ENPHASEMIS) 2760 seq_puts(m, "ENPHASEMIS "); 2761 if (s & ENBUSFREE) 2762 seq_puts(m, "ENBUSFREE "); 2763 if (s & ENSCSIPERR) 2764 seq_puts(m, "ENSCSIPERR "); 2765 if (s & ENPHASECHG) 2766 seq_puts(m, "ENPHASECHG "); 2767 if (s & ENREQINIT) 2768 seq_puts(m, "ENREQINIT "); 2769 seq_puts(m, ")\n"); 2770} 2771 2772static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length) 2773{ 2774 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0) 2775 return -EINVAL; 2776 2777#if defined(AHA152X_STAT) 2778 if(length>13 && strncmp("reset", buffer+8, 5)==0) { 2779 int i; 2780 2781 HOSTDATA(shpnt)->total_commands=0; 2782 HOSTDATA(shpnt)->disconnections=0; 2783 HOSTDATA(shpnt)->busfree_without_any_action=0; 2784 HOSTDATA(shpnt)->busfree_without_old_command=0; 2785 HOSTDATA(shpnt)->busfree_without_new_command=0; 2786 HOSTDATA(shpnt)->busfree_without_done_command=0; 2787 HOSTDATA(shpnt)->busfree_with_check_condition=0; 2788 for (i = idle; i<maxstate; i++) { 2789 HOSTDATA(shpnt)->count[i]=0; 2790 HOSTDATA(shpnt)->count_trans[i]=0; 2791 HOSTDATA(shpnt)->time[i]=0; 2792 } 2793 2794 shost_printk(KERN_INFO, shpnt, "aha152x: stats reset.\n"); 2795 2796 } else 2797#endif 2798 { 2799 return -EINVAL; 2800 } 2801 2802 2803 return length; 2804} 2805 2806static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt) 2807{ 2808 int i; 2809 struct scsi_cmnd *ptr; 2810 unsigned long flags; 2811 2812 seq_puts(m, AHA152X_REVID "\n"); 2813 2814 seq_printf(m, "ioports 0x%04lx to 0x%04lx\n", 2815 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1); 2816 seq_printf(m, "interrupt 0x%02x\n", shpnt->irq); 2817 seq_printf(m, "disconnection/reconnection %s\n", 2818 RECONNECT ? "enabled" : "disabled"); 2819 seq_printf(m, "parity checking %s\n", 2820 PARITY ? "enabled" : "disabled"); 2821 seq_printf(m, "synchronous transfers %s\n", 2822 SYNCHRONOUS ? "enabled" : "disabled"); 2823 seq_printf(m, "%d commands currently queued\n", HOSTDATA(shpnt)->commands); 2824 2825 if(SYNCHRONOUS) { 2826 seq_puts(m, "synchronously operating targets (tick=50 ns):\n"); 2827 for (i = 0; i < 8; i++) 2828 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f) 2829 seq_printf(m, "target %d: period %dT/%dns; req/ack offset %d\n", 2830 i, 2831 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2), 2832 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50, 2833 HOSTDATA(shpnt)->syncrate[i] & 0x0f); 2834 } 2835 seq_puts(m, "\nqueue status:\n"); 2836 DO_LOCK(flags); 2837 if (ISSUE_SC) { 2838 seq_puts(m, "not yet issued commands:\n"); 2839 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) 2840 get_command(m, ptr); 2841 } else 2842 seq_puts(m, "no not yet issued commands\n"); 2843 DO_UNLOCK(flags); 2844 2845 if (CURRENT_SC) { 2846 seq_puts(m, "current command:\n"); 2847 get_command(m, CURRENT_SC); 2848 } else 2849 seq_puts(m, "no current command\n"); 2850 2851 if (DISCONNECTED_SC) { 2852 seq_puts(m, "disconnected commands:\n"); 2853 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr)) 2854 get_command(m, ptr); 2855 } else 2856 seq_puts(m, "no disconnected commands\n"); 2857 2858 get_ports(m, shpnt); 2859 2860#if defined(AHA152X_STAT) 2861 seq_printf(m, "statistics:\n" 2862 "total commands: %d\n" 2863 "disconnections: %d\n" 2864 "busfree with check condition: %d\n" 2865 "busfree without old command: %d\n" 2866 "busfree without new command: %d\n" 2867 "busfree without done command: %d\n" 2868 "busfree without any action: %d\n" 2869 "state " 2870 "transitions " 2871 "count " 2872 "time\n", 2873 HOSTDATA(shpnt)->total_commands, 2874 HOSTDATA(shpnt)->disconnections, 2875 HOSTDATA(shpnt)->busfree_with_check_condition, 2876 HOSTDATA(shpnt)->busfree_without_old_command, 2877 HOSTDATA(shpnt)->busfree_without_new_command, 2878 HOSTDATA(shpnt)->busfree_without_done_command, 2879 HOSTDATA(shpnt)->busfree_without_any_action); 2880 for(i=0; i<maxstate; i++) { 2881 seq_printf(m, "%-10s %-12d %-12d %-12ld\n", 2882 states[i].name, 2883 HOSTDATA(shpnt)->count_trans[i], 2884 HOSTDATA(shpnt)->count[i], 2885 HOSTDATA(shpnt)->time[i]); 2886 } 2887#endif 2888 return 0; 2889} 2890 2891static int aha152x_adjust_queue(struct scsi_device *device) 2892{ 2893 blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH); 2894 return 0; 2895} 2896 2897static struct scsi_host_template aha152x_driver_template = { 2898 .module = THIS_MODULE, 2899 .name = AHA152X_REVID, 2900 .proc_name = "aha152x", 2901 .show_info = aha152x_show_info, 2902 .write_info = aha152x_set_info, 2903 .queuecommand = aha152x_queue, 2904 .eh_abort_handler = aha152x_abort, 2905 .eh_device_reset_handler = aha152x_device_reset, 2906 .eh_bus_reset_handler = aha152x_bus_reset, 2907 .bios_param = aha152x_biosparam, 2908 .can_queue = 1, 2909 .this_id = 7, 2910 .sg_tablesize = SG_ALL, 2911 .dma_boundary = PAGE_SIZE - 1, 2912 .slave_alloc = aha152x_adjust_queue, 2913}; 2914 2915#if !defined(AHA152X_PCMCIA) 2916static int setup_count; 2917static struct aha152x_setup setup[2]; 2918 2919/* possible i/o addresses for the AIC-6260; default first */ 2920static unsigned short ports[] = { 0x340, 0x140 }; 2921 2922#if !defined(SKIP_BIOSTEST) 2923/* possible locations for the Adaptec BIOS; defaults first */ 2924static unsigned int addresses[] = 2925{ 2926 0xdc000, /* default first */ 2927 0xc8000, 2928 0xcc000, 2929 0xd0000, 2930 0xd4000, 2931 0xd8000, 2932 0xe0000, 2933 0xeb800, /* VTech Platinum SMP */ 2934 0xf0000, 2935}; 2936 2937/* signatures for various AIC-6[23]60 based controllers. 2938 The point in detecting signatures is to avoid useless and maybe 2939 harmful probes on ports. I'm not sure that all listed boards pass 2940 auto-configuration. For those which fail the BIOS signature is 2941 obsolete, because user intervention to supply the configuration is 2942 needed anyway. May be an information whether or not the BIOS supports 2943 extended translation could be also useful here. */ 2944static struct signature { 2945 unsigned char *signature; 2946 int sig_offset; 2947 int sig_length; 2948} signatures[] = 2949{ 2950 { "Adaptec AHA-1520 BIOS", 0x102e, 21 }, 2951 /* Adaptec 152x */ 2952 { "Adaptec AHA-1520B", 0x000b, 17 }, 2953 /* Adaptec 152x rev B */ 2954 { "Adaptec AHA-1520B", 0x0026, 17 }, 2955 /* Iomega Jaz Jet ISA (AIC6370Q) */ 2956 { "Adaptec ASW-B626 BIOS", 0x1029, 21 }, 2957 /* on-board controller */ 2958 { "Adaptec BIOS: ASW-B626", 0x000f, 22 }, 2959 /* on-board controller */ 2960 { "Adaptec ASW-B626 S2", 0x2e6c, 19 }, 2961 /* on-board controller */ 2962 { "Adaptec BIOS:AIC-6360", 0x000c, 21 }, 2963 /* on-board controller */ 2964 { "ScsiPro SP-360 BIOS", 0x2873, 19 }, 2965 /* ScsiPro-Controller */ 2966 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 }, 2967 /* Gigabyte Local-Bus-SCSI */ 2968 { "Adaptec BIOS:AVA-282X", 0x000c, 21 }, 2969 /* Adaptec 282x */ 2970 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 }, 2971 /* IBM Thinkpad Dock II */ 2972 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 }, 2973 /* IBM Thinkpad Dock II SCSI */ 2974 { "DTC3520A Host Adapter BIOS", 0x318a, 26 }, 2975 /* DTC 3520A ISA SCSI */ 2976}; 2977#endif /* !SKIP_BIOSTEST */ 2978 2979/* 2980 * Test, if port_base is valid. 2981 * 2982 */ 2983static int aha152x_porttest(int io_port) 2984{ 2985 int i; 2986 2987 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ 2988 for (i = 0; i < 16; i++) 2989 SETPORT(io_port + O_STACK, i); 2990 2991 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ 2992 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++) 2993 ; 2994 2995 return (i == 16); 2996} 2997 2998static int tc1550_porttest(int io_port) 2999{ 3000 int i; 3001 3002 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ 3003 for (i = 0; i < 16; i++) 3004 SETPORT(io_port + O_STACK, i); 3005 3006 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ 3007 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++) 3008 ; 3009 3010 return (i == 16); 3011} 3012 3013 3014static int checksetup(struct aha152x_setup *setup) 3015{ 3016 int i; 3017 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++) 3018 ; 3019 3020 if (i == ARRAY_SIZE(ports)) 3021 return 0; 3022 3023 if (!request_region(setup->io_port, IO_RANGE, "aha152x")) { 3024 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port); 3025 return 0; 3026 } 3027 3028 if( aha152x_porttest(setup->io_port) ) { 3029 setup->tc1550=0; 3030 } else if( tc1550_porttest(setup->io_port) ) { 3031 setup->tc1550=1; 3032 } else { 3033 release_region(setup->io_port, IO_RANGE); 3034 return 0; 3035 } 3036 3037 release_region(setup->io_port, IO_RANGE); 3038 3039 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX)) 3040 return 0; 3041 3042 if ((setup->scsiid < 0) || (setup->scsiid > 7)) 3043 return 0; 3044 3045 if ((setup->reconnect < 0) || (setup->reconnect > 1)) 3046 return 0; 3047 3048 if ((setup->parity < 0) || (setup->parity > 1)) 3049 return 0; 3050 3051 if ((setup->synchronous < 0) || (setup->synchronous > 1)) 3052 return 0; 3053 3054 if ((setup->ext_trans < 0) || (setup->ext_trans > 1)) 3055 return 0; 3056 3057 3058 return 1; 3059} 3060 3061 3062static int __init aha152x_init(void) 3063{ 3064 int i, j, ok; 3065#if defined(AUTOCONF) 3066 aha152x_config conf; 3067#endif 3068#ifdef __ISAPNP__ 3069 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL}; 3070#endif 3071 3072 if ( setup_count ) { 3073 printk(KERN_INFO "aha152x: processing commandline: "); 3074 3075 for (i = 0; i<setup_count; i++) { 3076 if (!checksetup(&setup[i])) { 3077 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf); 3078 printk(KERN_ERR "aha152x: invalid line\n"); 3079 } 3080 } 3081 printk("ok\n"); 3082 } 3083 3084#if defined(SETUP0) 3085 if (setup_count < ARRAY_SIZE(setup)) { 3086 struct aha152x_setup override = SETUP0; 3087 3088 if (setup_count == 0 || (override.io_port != setup[0].io_port)) { 3089 if (!checksetup(&override)) { 3090 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", 3091 override.io_port, 3092 override.irq, 3093 override.scsiid, 3094 override.reconnect, 3095 override.parity, 3096 override.synchronous, 3097 override.delay, 3098 override.ext_trans); 3099 } else 3100 setup[setup_count++] = override; 3101 } 3102 } 3103#endif 3104 3105#if defined(SETUP1) 3106 if (setup_count < ARRAY_SIZE(setup)) { 3107 struct aha152x_setup override = SETUP1; 3108 3109 if (setup_count == 0 || (override.io_port != setup[0].io_port)) { 3110 if (!checksetup(&override)) { 3111 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", 3112 override.io_port, 3113 override.irq, 3114 override.scsiid, 3115 override.reconnect, 3116 override.parity, 3117 override.synchronous, 3118 override.delay, 3119 override.ext_trans); 3120 } else 3121 setup[setup_count++] = override; 3122 } 3123 } 3124#endif 3125 3126#if defined(MODULE) 3127 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) { 3128 if(aha152x[0]!=0) { 3129 setup[setup_count].conf = ""; 3130 setup[setup_count].io_port = aha152x[0]; 3131 setup[setup_count].irq = aha152x[1]; 3132 setup[setup_count].scsiid = aha152x[2]; 3133 setup[setup_count].reconnect = aha152x[3]; 3134 setup[setup_count].parity = aha152x[4]; 3135 setup[setup_count].synchronous = aha152x[5]; 3136 setup[setup_count].delay = aha152x[6]; 3137 setup[setup_count].ext_trans = aha152x[7]; 3138 } else if (io[0] != 0 || irq[0] != 0) { 3139 if(io[0]!=0) setup[setup_count].io_port = io[0]; 3140 if(irq[0]!=0) setup[setup_count].irq = irq[0]; 3141 3142 setup[setup_count].scsiid = scsiid[0]; 3143 setup[setup_count].reconnect = reconnect[0]; 3144 setup[setup_count].parity = parity[0]; 3145 setup[setup_count].synchronous = sync[0]; 3146 setup[setup_count].delay = delay[0]; 3147 setup[setup_count].ext_trans = exttrans[0]; 3148 } 3149 3150 if (checksetup(&setup[setup_count])) 3151 setup_count++; 3152 else 3153 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", 3154 setup[setup_count].io_port, 3155 setup[setup_count].irq, 3156 setup[setup_count].scsiid, 3157 setup[setup_count].reconnect, 3158 setup[setup_count].parity, 3159 setup[setup_count].synchronous, 3160 setup[setup_count].delay, 3161 setup[setup_count].ext_trans); 3162 } 3163 3164 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) { 3165 if(aha152x1[0]!=0) { 3166 setup[setup_count].conf = ""; 3167 setup[setup_count].io_port = aha152x1[0]; 3168 setup[setup_count].irq = aha152x1[1]; 3169 setup[setup_count].scsiid = aha152x1[2]; 3170 setup[setup_count].reconnect = aha152x1[3]; 3171 setup[setup_count].parity = aha152x1[4]; 3172 setup[setup_count].synchronous = aha152x1[5]; 3173 setup[setup_count].delay = aha152x1[6]; 3174 setup[setup_count].ext_trans = aha152x1[7]; 3175 } else if (io[1] != 0 || irq[1] != 0) { 3176 if(io[1]!=0) setup[setup_count].io_port = io[1]; 3177 if(irq[1]!=0) setup[setup_count].irq = irq[1]; 3178 3179 setup[setup_count].scsiid = scsiid[1]; 3180 setup[setup_count].reconnect = reconnect[1]; 3181 setup[setup_count].parity = parity[1]; 3182 setup[setup_count].synchronous = sync[1]; 3183 setup[setup_count].delay = delay[1]; 3184 setup[setup_count].ext_trans = exttrans[1]; 3185 } 3186 if (checksetup(&setup[setup_count])) 3187 setup_count++; 3188 else 3189 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", 3190 setup[setup_count].io_port, 3191 setup[setup_count].irq, 3192 setup[setup_count].scsiid, 3193 setup[setup_count].reconnect, 3194 setup[setup_count].parity, 3195 setup[setup_count].synchronous, 3196 setup[setup_count].delay, 3197 setup[setup_count].ext_trans); 3198 } 3199#endif 3200 3201#ifdef __ISAPNP__ 3202 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) { 3203 while ( setup_count<ARRAY_SIZE(setup) && 3204 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) { 3205 if (pnp_device_attach(dev) < 0) 3206 continue; 3207 3208 if (pnp_activate_dev(dev) < 0) { 3209 pnp_device_detach(dev); 3210 continue; 3211 } 3212 3213 if (!pnp_port_valid(dev, 0)) { 3214 pnp_device_detach(dev); 3215 continue; 3216 } 3217 3218 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) { 3219 pnp_device_detach(dev); 3220 continue; 3221 } 3222 3223 setup[setup_count].io_port = pnp_port_start(dev, 0); 3224 setup[setup_count].irq = pnp_irq(dev, 0); 3225 setup[setup_count].scsiid = 7; 3226 setup[setup_count].reconnect = 1; 3227 setup[setup_count].parity = 1; 3228 setup[setup_count].synchronous = 1; 3229 setup[setup_count].delay = DELAY_DEFAULT; 3230 setup[setup_count].ext_trans = 0; 3231#if defined(__ISAPNP__) 3232 pnpdev[setup_count] = dev; 3233#endif 3234 printk (KERN_INFO 3235 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n", 3236 setup[setup_count].io_port, setup[setup_count].irq); 3237 setup_count++; 3238 } 3239 } 3240#endif 3241 3242#if defined(AUTOCONF) 3243 if (setup_count<ARRAY_SIZE(setup)) { 3244#if !defined(SKIP_BIOSTEST) 3245 ok = 0; 3246 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) { 3247 void __iomem *p = ioremap(addresses[i], 0x4000); 3248 if (!p) 3249 continue; 3250 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++) 3251 ok = check_signature(p + signatures[j].sig_offset, 3252 signatures[j].signature, signatures[j].sig_length); 3253 iounmap(p); 3254 } 3255 if (!ok && setup_count == 0) 3256 return -ENODEV; 3257 3258 printk(KERN_INFO "aha152x: BIOS test: passed, "); 3259#else 3260 printk(KERN_INFO "aha152x: "); 3261#endif /* !SKIP_BIOSTEST */ 3262 3263 ok = 0; 3264 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) { 3265 if ((setup_count == 1) && (setup[0].io_port == ports[i])) 3266 continue; 3267 3268 if (!request_region(ports[i], IO_RANGE, "aha152x")) { 3269 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]); 3270 continue; 3271 } 3272 3273 if (aha152x_porttest(ports[i])) { 3274 setup[setup_count].tc1550 = 0; 3275 3276 conf.cf_port = 3277 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB); 3278 } else if (tc1550_porttest(ports[i])) { 3279 setup[setup_count].tc1550 = 1; 3280 3281 conf.cf_port = 3282 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB); 3283 } else { 3284 release_region(ports[i], IO_RANGE); 3285 continue; 3286 } 3287 3288 release_region(ports[i], IO_RANGE); 3289 3290 ok++; 3291 setup[setup_count].io_port = ports[i]; 3292 setup[setup_count].irq = IRQ_MIN + conf.cf_irq; 3293 setup[setup_count].scsiid = conf.cf_id; 3294 setup[setup_count].reconnect = conf.cf_tardisc; 3295 setup[setup_count].parity = !conf.cf_parity; 3296 setup[setup_count].synchronous = conf.cf_syncneg; 3297 setup[setup_count].delay = DELAY_DEFAULT; 3298 setup[setup_count].ext_trans = 0; 3299 setup_count++; 3300 3301 } 3302 3303 if (ok) 3304 printk("auto configuration: ok, "); 3305 } 3306#endif 3307 3308 printk("%d controller(s) configured\n", setup_count); 3309 3310 for (i=0; i<setup_count; i++) { 3311 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) { 3312 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]); 3313 3314 if( !shpnt ) { 3315 release_region(setup[i].io_port, IO_RANGE); 3316#if defined(__ISAPNP__) 3317 } else if( pnpdev[i] ) { 3318 HOSTDATA(shpnt)->pnpdev=pnpdev[i]; 3319 pnpdev[i]=NULL; 3320#endif 3321 } 3322 } else { 3323 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port); 3324 } 3325 3326#if defined(__ISAPNP__) 3327 if( pnpdev[i] ) 3328 pnp_device_detach(pnpdev[i]); 3329#endif 3330 } 3331 3332 return 0; 3333} 3334 3335static void __exit aha152x_exit(void) 3336{ 3337 struct aha152x_hostdata *hd, *tmp; 3338 3339 list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) { 3340 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); 3341 3342 aha152x_release(shost); 3343 } 3344} 3345 3346module_init(aha152x_init); 3347module_exit(aha152x_exit); 3348 3349#if !defined(MODULE) 3350static int __init aha152x_setup(char *str) 3351{ 3352 int ints[10]; 3353 3354 get_options(str, ARRAY_SIZE(ints), ints); 3355 3356 if(setup_count>=ARRAY_SIZE(setup)) { 3357 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n"); 3358 return 1; 3359 } 3360 3361 setup[setup_count].conf = str; 3362 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340; 3363 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11; 3364 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7; 3365 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1; 3366 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1; 3367 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1; 3368 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT; 3369 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0; 3370 if (ints[0] > 8) 3371 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" 3372 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n"); 3373 else 3374 setup_count++; 3375 3376 return 1; 3377} 3378__setup("aha152x=", aha152x_setup); 3379#endif 3380 3381#endif /* !AHA152X_PCMCIA */ 3382