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[ARM] Add thread_notify infrastructure
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / aha152x.c
blobde80cdfb5b9d4e8f85d3b08e6836d66ec542e257
1 /* aha152x.c -- Adaptec AHA-152x driver
2 * Author: Jürgen E. Fischer, fischer@norbit.de
3 * Copyright 1993-2004 Jürgen E. Fischer
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
8 * later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 *
16 * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $
17 *
18 * $Log: aha152x.c,v $
19 * Revision 2.7 2004/01/24 11:42:59 fischer
20 * - gather code that is not used by PCMCIA at the end
21 * - move request_region for !PCMCIA case to detection
22 * - migration to new scsi host api (remove legacy code)
23 * - free host scribble before scsi_done
24 * - fix error handling
25 * - one isapnp device added to id_table
26 *
27 * Revision 2.6 2003/10/30 20:52:47 fischer
28 * - interfaces changes for kernel 2.6
29 * - aha152x_probe_one introduced for pcmcia stub
30 * - fixed pnpdev handling
31 * - instead of allocation a new one, reuse command for request sense after check condition and reset
32 * - fixes race in is_complete
33 *
34 * Revision 2.5 2002/04/14 11:24:53 fischer
35 * - isapnp support
36 * - abort fixed
37 * - 2.5 support
38 *
39 * Revision 2.4 2000/12/16 12:53:56 fischer
40 * - allow REQUEST SENSE to be queued
41 * - handle shared PCI interrupts
42 *
43 * Revision 2.3 2000/11/04 16:40:26 fischer
44 * - handle data overruns
45 * - extend timeout for data phases
46 *
47 * Revision 2.2 2000/08/08 19:54:53 fischer
48 * - minor changes
49 *
50 * Revision 2.1 2000/05/17 16:23:17 fischer
51 * - signature update
52 * - fix for data out w/o scatter gather
53 *
54 * Revision 2.0 1999/12/25 15:07:32 fischer
55 * - interrupt routine completly reworked
56 * - basic support for new eh code
57 *
58 * Revision 1.21 1999/11/10 23:46:36 fischer
59 * - default to synchronous operation
60 * - synchronous negotiation fixed
61 * - added timeout to loops
62 * - debugging output can be controlled through procfs
63 *
64 * Revision 1.20 1999/11/07 18:37:31 fischer
65 * - synchronous operation works
66 * - resid support for sg driver
67 *
68 * Revision 1.19 1999/11/02 22:39:59 fischer
69 * - moved leading comments to README.aha152x
70 * - new additional module parameters
71 * - updates for 2.3
72 * - support for the Tripace TC1550 controller
73 * - interrupt handling changed
74 *
75 * Revision 1.18 1996/09/07 20:10:40 fischer
76 * - fixed can_queue handling (multiple outstanding commands working again)
77 *
78 * Revision 1.17 1996/08/17 16:05:14 fischer
79 * - biosparam improved
80 * - interrupt verification
81 * - updated documentation
82 * - cleanups
83 *
84 * Revision 1.16 1996/06/09 00:04:56 root
85 * - added configuration symbols for insmod (aha152x/aha152x1)
86 *
87 * Revision 1.15 1996/04/30 14:52:06 fischer
88 * - proc info fixed
89 * - support for extended translation for >1GB disks
90 *
91 * Revision 1.14 1996/01/17 15:11:20 fischer
92 * - fixed lockup in MESSAGE IN phase after reconnection
93 *
94 * Revision 1.13 1996/01/09 02:15:53 fischer
95 * - some cleanups
96 * - moved request_irq behind controller initialization
97 * (to avoid spurious interrupts)
98 *
99 * Revision 1.12 1995/12/16 12:26:07 fischer
100 * - barrier()s added
101 * - configurable RESET delay added
102 *
103 * Revision 1.11 1995/12/06 21:18:35 fischer
104 * - some minor updates
105 *
106 * Revision 1.10 1995/07/22 19:18:45 fischer
107 * - support for 2 controllers
108 * - started synchronous data transfers (not working yet)
109 *
110 * Revision 1.9 1995/03/18 09:20:24 root
111 * - patches for PCMCIA and modules
112 *
113 * Revision 1.8 1995/01/21 22:07:19 root
114 * - snarf_region => request_region
115 * - aha152x_intr interface change
116 *
117 * Revision 1.7 1995/01/02 23:19:36 root
118 * - updated COMMAND_SIZE to cmd_len
119 * - changed sti() to restore_flags()
120 * - fixed some #ifdef which generated warnings
121 *
122 * Revision 1.6 1994/11/24 20:35:27 root
123 * - problem with odd number of bytes in fifo fixed
124 *
125 * Revision 1.5 1994/10/30 14:39:56 root
126 * - abort code fixed
127 * - debugging improved
128 *
129 * Revision 1.4 1994/09/12 11:33:01 root
130 * - irqaction to request_irq
131 * - abortion updated
132 *
133 * Revision 1.3 1994/08/04 13:53:05 root
134 * - updates for mid-level-driver changes
135 * - accept unexpected BUSFREE phase as error condition
136 * - parity check now configurable
137 *
138 * Revision 1.2 1994/07/03 12:56:36 root
139 * - cleaned up debugging code
140 * - more tweaking on reset delays
141 * - updated abort/reset code (pretty untested...)
142 *
143 * Revision 1.1 1994/05/28 21:18:49 root
144 * - update for mid-level interface change (abort-reset)
145 * - delays after resets adjusted for some slow devices
146 *
147 * Revision 1.0 1994/03/25 12:52:00 root
148 * - Fixed "more data than expected" problem
149 * - added new BIOS signatures
150 *
151 * Revision 0.102 1994/01/31 20:44:12 root
152 * - minor changes in insw/outsw handling
153 *
154 * Revision 0.101 1993/12/13 01:16:27 root
155 * - fixed STATUS phase (non-GOOD stati were dropped sometimes;
156 * fixes problems with CD-ROM sector size detection & media change)
157 *
158 * Revision 0.100 1993/12/10 16:58:47 root
159 * - fix for unsuccessful selections in case of non-continuous id assignments
160 * on the scsi bus.
161 *
162 * Revision 0.99 1993/10/24 16:19:59 root
163 * - fixed DATA IN (rare read errors gone)
164 *
165 * Revision 0.98 1993/10/17 12:54:44 root
166 * - fixed some recent fixes (shame on me)
167 * - moved initialization of scratch area to aha152x_queue
168 *
169 * Revision 0.97 1993/10/09 18:53:53 root
170 * - DATA IN fixed. Rarely left data in the fifo.
171 *
172 * Revision 0.96 1993/10/03 00:53:59 root
173 * - minor changes on DATA IN
174 *
175 * Revision 0.95 1993/09/24 10:36:01 root
176 * - change handling of MSGI after reselection
177 * - fixed sti/cli
178 * - minor changes
179 *
180 * Revision 0.94 1993/09/18 14:08:22 root
181 * - fixed bug in multiple outstanding command code
182 * - changed detection
183 * - support for kernel command line configuration
184 * - reset corrected
185 * - changed message handling
186 *
187 * Revision 0.93 1993/09/15 20:41:19 root
188 * - fixed bugs with multiple outstanding commands
189 *
190 * Revision 0.92 1993/09/13 02:46:33 root
191 * - multiple outstanding commands work (no problems with IBM drive)
192 *
193 * Revision 0.91 1993/09/12 20:51:46 root
194 * added multiple outstanding commands
195 * (some problem with this $%&? IBM device remain)
196 *
197 * Revision 0.9 1993/09/12 11:11:22 root
198 * - corrected auto-configuration
199 * - changed the auto-configuration (added some '#define's)
200 * - added support for dis-/reconnection
201 *
202 * Revision 0.8 1993/09/06 23:09:39 root
203 * - added support for the drive activity light
204 * - minor changes
205 *
206 * Revision 0.7 1993/09/05 14:30:15 root
207 * - improved phase detection
208 * - now using the new snarf_region code of 0.99pl13
209 *
210 * Revision 0.6 1993/09/02 11:01:38 root
211 * first public release; added some signatures and biosparam()
212 *
213 * Revision 0.5 1993/08/30 10:23:30 root
214 * fixed timing problems with my IBM drive
215 *
216 * Revision 0.4 1993/08/29 14:06:52 root
217 * fixed some problems with timeouts due incomplete commands
218 *
219 * Revision 0.3 1993/08/28 15:55:03 root
220 * writing data works too. mounted and worked on a dos partition
221 *
222 * Revision 0.2 1993/08/27 22:42:07 root
223 * reading data works. Mounted a msdos partition.
224 *
225 * Revision 0.1 1993/08/25 13:38:30 root
226 * first "damn thing doesn't work" version
227 *
228 * Revision 0.0 1993/08/14 19:54:25 root
229 * empty function bodies; detect() works.
230 *
231 *
232 **************************************************************************
233
234 see Documentation/scsi/aha152x.txt for configuration details
235
236 **************************************************************************/
237
238 #include <linux/module.h>
239 #include <linux/sched.h>
240 #include <asm/irq.h>
241 #include <asm/io.h>
242 #include <linux/blkdev.h>
243 #include <asm/system.h>
244 #include <linux/errno.h>
245 #include <linux/string.h>
246 #include <linux/wait.h>
247 #include <linux/ioport.h>
248 #include <linux/delay.h>
249 #include <linux/proc_fs.h>
250 #include <linux/interrupt.h>
251 #include <linux/init.h>
252 #include <linux/kernel.h>
253 #include <linux/isapnp.h>
254 #include <linux/spinlock.h>
255 #include <linux/workqueue.h>
256 #include <asm/semaphore.h>
257 #include <scsi/scsicam.h>
258
259 #include "scsi.h"
260 #include <scsi/scsi_dbg.h>
261 #include <scsi/scsi_host.h>
262 #include <scsi/scsi_transport_spi.h>
263 #include "aha152x.h"
264
265
266 /* DEFINES */
267
268 /* For PCMCIA cards, always use AUTOCONF */
269 #if defined(PCMCIA) || defined(MODULE)
270 #if !defined(AUTOCONF)
271 #define AUTOCONF
272 #endif
273 #endif
274
275 #if !defined(AUTOCONF) && !defined(SETUP0)
276 #error define AUTOCONF or SETUP0
277 #endif
278
279 #if defined(AHA152X_DEBUG)
280 #define DEBUG_DEFAULT debug_eh
281
282 #define DPRINTK(when,msgs...) \
283 do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0)
284
285 #define DO_LOCK(flags) \
286 do { \
287 if(spin_is_locked(&QLOCK)) { \
288 DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
289 } \
290 DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
291 spin_lock_irqsave(&QLOCK,flags); \
292 DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
293 QLOCKER=__FUNCTION__; \
294 QLOCKERL=__LINE__; \
295 } while(0)
296
297 #define DO_UNLOCK(flags) \
298 do { \
299 DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
300 spin_unlock_irqrestore(&QLOCK,flags); \
301 DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
302 QLOCKER="(not locked)"; \
303 QLOCKERL=0; \
304 } while(0)
305
306 #else
307 #define DPRINTK(when,msgs...)
308 #define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags)
309 #define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags)
310 #endif
311
312 #define LEAD "(scsi%d:%d:%d) "
313 #define WARN_LEAD KERN_WARNING LEAD
314 #define INFO_LEAD KERN_INFO LEAD
315 #define NOTE_LEAD KERN_NOTICE LEAD
316 #define ERR_LEAD KERN_ERR LEAD
317 #define DEBUG_LEAD KERN_DEBUG LEAD
318 #define CMDINFO(cmd) \
319 (cmd) ? ((cmd)->device->host->host_no) : -1, \
320 (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
321 (cmd) ? ((cmd)->device->lun & 0x07) : -1
322
323 #define DELAY_DEFAULT 1000
324
325 #if defined(PCMCIA)
326 #define IRQ_MIN 0
327 #define IRQ_MAX 16
328 #else
329 #define IRQ_MIN 9
330 #if defined(__PPC)
331 #define IRQ_MAX (NR_IRQS-1)
332 #else
333 #define IRQ_MAX 12
334 #endif
335 #endif
336
337 enum {
338 not_issued = 0x0001, /* command not yet issued */
339 selecting = 0x0002, /* target is beeing selected */
340 identified = 0x0004, /* IDENTIFY was sent */
341 disconnected = 0x0008, /* target disconnected */
342 completed = 0x0010, /* target sent COMMAND COMPLETE */
343 aborted = 0x0020, /* ABORT was sent */
344 resetted = 0x0040, /* BUS DEVICE RESET was sent */
345 spiordy = 0x0080, /* waiting for SPIORDY to raise */
346 syncneg = 0x0100, /* synchronous negotiation in progress */
347 aborting = 0x0200, /* ABORT is pending */
348 resetting = 0x0400, /* BUS DEVICE RESET is pending */
349 check_condition = 0x0800, /* requesting sense after CHECK CONDITION */
350 };
351
352 MODULE_AUTHOR("Jürgen Fischer");
353 MODULE_DESCRIPTION(AHA152X_REVID);
354 MODULE_LICENSE("GPL");
355
356 #if !defined(PCMCIA)
357 #if defined(MODULE)
358 static int io[] = {0, 0};
359 module_param_array(io, int, NULL, 0);
360 MODULE_PARM_DESC(io,"base io address of controller");
361
362 static int irq[] = {0, 0};
363 module_param_array(irq, int, NULL, 0);
364 MODULE_PARM_DESC(irq,"interrupt for controller");
365
366 static int scsiid[] = {7, 7};
367 module_param_array(scsiid, int, NULL, 0);
368 MODULE_PARM_DESC(scsiid,"scsi id of controller");
369
370 static int reconnect[] = {1, 1};
371 module_param_array(reconnect, int, NULL, 0);
372 MODULE_PARM_DESC(reconnect,"allow targets to disconnect");
373
374 static int parity[] = {1, 1};
375 module_param_array(parity, int, NULL, 0);
376 MODULE_PARM_DESC(parity,"use scsi parity");
377
378 static int sync[] = {1, 1};
379 module_param_array(sync, int, NULL, 0);
380 MODULE_PARM_DESC(sync,"use synchronous transfers");
381
382 static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT};
383 module_param_array(delay, int, NULL, 0);
384 MODULE_PARM_DESC(delay,"scsi reset delay");
385
386 static int exttrans[] = {0, 0};
387 module_param_array(exttrans, int, NULL, 0);
388 MODULE_PARM_DESC(exttrans,"use extended translation");
389
390 #if !defined(AHA152X_DEBUG)
391 static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
392 module_param_array(aha152x, int, NULL, 0);
393 MODULE_PARM_DESC(aha152x, "parameters for first controller");
394
395 static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
396 module_param_array(aha152x1, int, NULL, 0);
397 MODULE_PARM_DESC(aha152x1, "parameters for second controller");
398 #else
399 static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT};
400 module_param_array(debug, int, NULL, 0);
401 MODULE_PARM_DESC(debug, "flags for driver debugging");
402
403 static int aha152x[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
404 module_param_array(aha152x, int, NULL, 0);
405 MODULE_PARM_DESC(aha152x, "parameters for first controller");
406
407 static int aha152x1[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
408 module_param_array(aha152x1, int, NULL, 0);
409 MODULE_PARM_DESC(aha152x1, "parameters for second controller");
410 #endif /* !defined(AHA152X_DEBUG) */
411 #endif /* MODULE */
412
413 #ifdef __ISAPNP__
414 static struct isapnp_device_id id_table[] __devinitdata = {
415 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
416 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 },
417 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
418 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 },
419 { ISAPNP_DEVICE_SINGLE_END, }
420 };
421 MODULE_DEVICE_TABLE(isapnp, id_table);
422 #endif /* ISAPNP */
423
424 #endif /* !PCMCIA */
425
426 static int registered_count=0;
427 static struct Scsi_Host *aha152x_host[2];
428 static struct scsi_host_template aha152x_driver_template;
429
430 /*
431 * internal states of the host
432 *
433 */
434 enum aha152x_state {
435 idle=0,
436 unknown,
437 seldo,
438 seldi,
439 selto,
440 busfree,
441 msgo,
442 cmd,
443 msgi,
444 status,
445 datai,
446 datao,
447 parerr,
448 rsti,
449 maxstate
450 };
451
452 /*
453 * current state information of the host
454 *
455 */
456 struct aha152x_hostdata {
457 Scsi_Cmnd *issue_SC;
458 /* pending commands to issue */
459
460 Scsi_Cmnd *current_SC;
461 /* current command on the bus */
462
463 Scsi_Cmnd *disconnected_SC;
464 /* commands that disconnected */
465
466 Scsi_Cmnd *done_SC;
467 /* command that was completed */
468
469 spinlock_t lock;
470 /* host lock */
471
472 #if defined(AHA152X_DEBUG)
473 const char *locker;
474 /* which function has the lock */
475 int lockerl; /* where did it get it */
476
477 int debug; /* current debugging setting */
478 #endif
479
480 #if defined(AHA152X_STAT)
481 int total_commands;
482 int disconnections;
483 int busfree_without_any_action;
484 int busfree_without_old_command;
485 int busfree_without_new_command;
486 int busfree_without_done_command;
487 int busfree_with_check_condition;
488 int count[maxstate];
489 int count_trans[maxstate];
490 unsigned long time[maxstate];
491 #endif
492
493 int commands; /* current number of commands */
494
495 int reconnect; /* disconnection allowed */
496 int parity; /* parity checking enabled */
497 int synchronous; /* synchronous transferes enabled */
498 int delay; /* reset out delay */
499 int ext_trans; /* extended translation enabled */
500
501 int swint; /* software-interrupt was fired during detect() */
502 int service; /* bh needs to be run */
503 int in_intr; /* bh is running */
504
505 /* current state,
506 previous state,
507 last state different from current state */
508 enum aha152x_state state, prevstate, laststate;
509
510 int target;
511 /* reconnecting target */
512
513 unsigned char syncrate[8];
514 /* current synchronous transfer agreements */
515
516 unsigned char syncneg[8];
517 /* 0: no negotiation;
518 * 1: negotiation in progress;
519 * 2: negotiation completed
520 */
521
522 int cmd_i;
523 /* number of sent bytes of current command */
524
525 int msgi_len;
526 /* number of received message bytes */
527 unsigned char msgi[256];
528 /* received message bytes */
529
530 int msgo_i, msgo_len;
531 /* number of sent bytes and length of current messages */
532 unsigned char msgo[256];
533 /* pending messages */
534
535 int data_len;
536 /* number of sent/received bytes in dataphase */
537
538 unsigned long io_port0;
539 unsigned long io_port1;
540
541 #ifdef __ISAPNP__
542 struct pnp_dev *pnpdev;
543 #endif
544 };
545
546
547 /*
548 * host specific command extension
549 *
550 */
551 struct aha152x_scdata {
552 Scsi_Cmnd *next; /* next sc in queue */
553 struct semaphore *sem; /* semaphore to block on */
554 };
555
556
557 /* access macros for hostdata */
558
559 #define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
560
561 #define HOSTNO ((shpnt)->host_no)
562
563 #define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
564 #define DONE_SC (HOSTDATA(shpnt)->done_SC)
565 #define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
566 #define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
567 #define QLOCK (HOSTDATA(shpnt)->lock)
568 #define QLOCKER (HOSTDATA(shpnt)->locker)
569 #define QLOCKERL (HOSTDATA(shpnt)->lockerl)
570
571 #define STATE (HOSTDATA(shpnt)->state)
572 #define PREVSTATE (HOSTDATA(shpnt)->prevstate)
573 #define LASTSTATE (HOSTDATA(shpnt)->laststate)
574
575 #define RECONN_TARGET (HOSTDATA(shpnt)->target)
576
577 #define CMD_I (HOSTDATA(shpnt)->cmd_i)
578
579 #define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
580 #define MSGO_I (HOSTDATA(shpnt)->msgo_i)
581 #define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
582 #define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
583
584 #define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
585 #define MSGILEN (HOSTDATA(shpnt)->msgi_len)
586 #define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
587
588 #define DATA_LEN (HOSTDATA(shpnt)->data_len)
589
590 #define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
591 #define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
592
593 #define DELAY (HOSTDATA(shpnt)->delay)
594 #define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
595 #define TC1550 (HOSTDATA(shpnt)->tc1550)
596 #define RECONNECT (HOSTDATA(shpnt)->reconnect)
597 #define PARITY (HOSTDATA(shpnt)->parity)
598 #define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
599
600 #define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
601 #define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
602
603 #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
604 #define SCNEXT(SCpnt) SCDATA(SCpnt)->next
605 #define SCSEM(SCpnt) SCDATA(SCpnt)->sem
606
607 #define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset))
608
609 /* state handling */
610 static void seldi_run(struct Scsi_Host *shpnt);
611 static void seldo_run(struct Scsi_Host *shpnt);
612 static void selto_run(struct Scsi_Host *shpnt);
613 static void busfree_run(struct Scsi_Host *shpnt);
614
615 static void msgo_init(struct Scsi_Host *shpnt);
616 static void msgo_run(struct Scsi_Host *shpnt);
617 static void msgo_end(struct Scsi_Host *shpnt);
618
619 static void cmd_init(struct Scsi_Host *shpnt);
620 static void cmd_run(struct Scsi_Host *shpnt);
621 static void cmd_end(struct Scsi_Host *shpnt);
622
623 static void datai_init(struct Scsi_Host *shpnt);
624 static void datai_run(struct Scsi_Host *shpnt);
625 static void datai_end(struct Scsi_Host *shpnt);
626
627 static void datao_init(struct Scsi_Host *shpnt);
628 static void datao_run(struct Scsi_Host *shpnt);
629 static void datao_end(struct Scsi_Host *shpnt);
630
631 static void status_run(struct Scsi_Host *shpnt);
632
633 static void msgi_run(struct Scsi_Host *shpnt);
634 static void msgi_end(struct Scsi_Host *shpnt);
635
636 static void parerr_run(struct Scsi_Host *shpnt);
637 static void rsti_run(struct Scsi_Host *shpnt);
638
639 static void is_complete(struct Scsi_Host *shpnt);
640
641 /*
642 * driver states
643 *
644 */
645 static struct {
646 char *name;
647 void (*init)(struct Scsi_Host *);
648 void (*run)(struct Scsi_Host *);
649 void (*end)(struct Scsi_Host *);
650 int spio;
651 } states[] = {
652 { "idle", NULL, NULL, NULL, 0},
653 { "unknown", NULL, NULL, NULL, 0},
654 { "seldo", NULL, seldo_run, NULL, 0},
655 { "seldi", NULL, seldi_run, NULL, 0},
656 { "selto", NULL, selto_run, NULL, 0},
657 { "busfree", NULL, busfree_run, NULL, 0},
658 { "msgo", msgo_init, msgo_run, msgo_end, 1},
659 { "cmd", cmd_init, cmd_run, cmd_end, 1},
660 { "msgi", NULL, msgi_run, msgi_end, 1},
661 { "status", NULL, status_run, NULL, 1},
662 { "datai", datai_init, datai_run, datai_end, 0},
663 { "datao", datao_init, datao_run, datao_end, 0},
664 { "parerr", NULL, parerr_run, NULL, 0},
665 { "rsti", NULL, rsti_run, NULL, 0},
666 };
667
668 /* setup & interrupt */
669 static irqreturn_t intr(int irq, void *dev_id, struct pt_regs *);
670 static void reset_ports(struct Scsi_Host *shpnt);
671 static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
672 static void done(struct Scsi_Host *shpnt, int error);
673
674 /* diagnostics */
675 static void disp_ports(struct Scsi_Host *shpnt);
676 static void show_command(Scsi_Cmnd * ptr);
677 static void show_queues(struct Scsi_Host *shpnt);
678 static void disp_enintr(struct Scsi_Host *shpnt);
679
680
681 /*
682 * queue services:
683 *
684 */
685 static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
686 {
687 Scsi_Cmnd *end;
688
689 SCNEXT(new_SC) = NULL;
690 if (!*SC)
691 *SC = new_SC;
692 else {
693 for (end = *SC; SCNEXT(end); end = SCNEXT(end))
694 ;
695 SCNEXT(end) = new_SC;
696 }
697 }
698
699 static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
700 {
701 Scsi_Cmnd *ptr;
702
703 ptr = *SC;
704 if (ptr) {
705 *SC = SCNEXT(*SC);
706 SCNEXT(ptr)=NULL;
707 }
708 return ptr;
709 }
710
711 static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
712 {
713 Scsi_Cmnd *ptr, *prev;
714
715 for (ptr = *SC, prev = NULL;
716 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
717 prev = ptr, ptr = SCNEXT(ptr))
718 ;
719
720 if (ptr) {
721 if (prev)
722 SCNEXT(prev) = SCNEXT(ptr);
723 else
724 *SC = SCNEXT(ptr);
725
726 SCNEXT(ptr)=NULL;
727 }
728
729 return ptr;
730 }
731
732 static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
733 {
734 Scsi_Cmnd *ptr, *prev;
735
736 for (ptr = *SC, prev = NULL;
737 ptr && SCp!=ptr;
738 prev = ptr, ptr = SCNEXT(ptr))
739 ;
740
741 if (ptr) {
742 if (prev)
743 SCNEXT(prev) = SCNEXT(ptr);
744 else
745 *SC = SCNEXT(ptr);
746
747 SCNEXT(ptr)=NULL;
748 }
749
750 return ptr;
751 }
752
753 static inline struct Scsi_Host *lookup_irq(int irqno)
754 {
755 int i;
756
757 for(i=0; i<ARRAY_SIZE(aha152x_host); i++)
758 if(aha152x_host[i] && aha152x_host[i]->irq==irqno)
759 return aha152x_host[i];
760
761 return NULL;
762 }
763
764 static irqreturn_t swintr(int irqno, void *dev_id, struct pt_regs *regs)
765 {
766 struct Scsi_Host *shpnt = lookup_irq(irqno);
767
768 if (!shpnt) {
769 printk(KERN_ERR "aha152x: catched software interrupt %d for unknown controller.\n", irqno);
770 return IRQ_NONE;
771 }
772
773 HOSTDATA(shpnt)->swint++;
774
775 SETPORT(DMACNTRL0, INTEN);
776 return IRQ_HANDLED;
777 }
778
779 struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
780 {
781 struct Scsi_Host *shpnt;
782
783 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
784 if (!shpnt) {
785 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
786 return NULL;
787 }
788
789 /* need to have host registered before triggering any interrupt */
790 aha152x_host[registered_count] = shpnt;
791
792 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
793
794 shpnt->io_port = setup->io_port;
795 shpnt->n_io_port = IO_RANGE;
796 shpnt->irq = setup->irq;
797
798 if (!setup->tc1550) {
799 HOSTIOPORT0 = setup->io_port;
800 HOSTIOPORT1 = setup->io_port;
801 } else {
802 HOSTIOPORT0 = setup->io_port+0x10;
803 HOSTIOPORT1 = setup->io_port-0x10;
804 }
805
806 spin_lock_init(&QLOCK);
807 RECONNECT = setup->reconnect;
808 SYNCHRONOUS = setup->synchronous;
809 PARITY = setup->parity;
810 DELAY = setup->delay;
811 EXT_TRANS = setup->ext_trans;
812
813 #if defined(AHA152X_DEBUG)
814 HOSTDATA(shpnt)->debug = setup->debug;
815 #endif
816
817 SETPORT(SCSIID, setup->scsiid << 4);
818 shpnt->this_id = setup->scsiid;
819
820 if (setup->reconnect)
821 shpnt->can_queue = AHA152X_MAXQUEUE;
822
823 /* RESET OUT */
824 printk("aha152x: resetting bus...\n");
825 SETPORT(SCSISEQ, SCSIRSTO);
826 mdelay(256);
827 SETPORT(SCSISEQ, 0);
828 mdelay(DELAY);
829
830 reset_ports(shpnt);
831
832 printk(KERN_INFO
833 "aha152x%d%s: "
834 "vital data: rev=%x, "
835 "io=0x%03lx (0x%03lx/0x%03lx), "
836 "irq=%d, "
837 "scsiid=%d, "
838 "reconnect=%s, "
839 "parity=%s, "
840 "synchronous=%s, "
841 "delay=%d, "
842 "extended translation=%s\n",
843 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
844 GETPORT(REV) & 0x7,
845 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
846 shpnt->irq,
847 shpnt->this_id,
848 RECONNECT ? "enabled" : "disabled",
849 PARITY ? "enabled" : "disabled",
850 SYNCHRONOUS ? "enabled" : "disabled",
851 DELAY,
852 EXT_TRANS ? "enabled" : "disabled");
853
854 /* not expecting any interrupts */
855 SETPORT(SIMODE0, 0);
856 SETPORT(SIMODE1, 0);
857
858 if( request_irq(shpnt->irq, swintr, SA_INTERRUPT|SA_SHIRQ, "aha152x", shpnt) ) {
859 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
860 goto out_host_put;
861 }
862
863 HOSTDATA(shpnt)->swint = 0;
864
865 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
866
867 mb();
868 SETPORT(DMACNTRL0, SWINT|INTEN);
869 mdelay(1000);
870 free_irq(shpnt->irq, shpnt);
871
872 if (!HOSTDATA(shpnt)->swint) {
873 if (TESTHI(DMASTAT, INTSTAT)) {
874 printk("lost.\n");
875 } else {
876 printk("failed.\n");
877 }
878
879 SETPORT(DMACNTRL0, INTEN);
880
881 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
882 "Please verify.\n", shpnt->host_no, shpnt->irq);
883 goto out_host_put;
884 }
885 printk("ok.\n");
886
887
888 /* clear interrupts */
889 SETPORT(SSTAT0, 0x7f);
890 SETPORT(SSTAT1, 0xef);
891
892 if ( request_irq(shpnt->irq, intr, SA_INTERRUPT|SA_SHIRQ, "aha152x", shpnt) ) {
893 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
894 goto out_host_put;
895 }
896
897 if( scsi_add_host(shpnt, NULL) ) {
898 free_irq(shpnt->irq, shpnt);
899 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
900 goto out_host_put;
901 }
902
903 scsi_scan_host(shpnt);
904
905 registered_count++;
906
907 return shpnt;
908
909 out_host_put:
910 aha152x_host[registered_count]=NULL;
911 scsi_host_put(shpnt);
912
913 return NULL;
914 }
915
916 void aha152x_release(struct Scsi_Host *shpnt)
917 {
918 if(!shpnt)
919 return;
920
921 if (shpnt->irq)
922 free_irq(shpnt->irq, shpnt);
923
924 #if !defined(PCMCIA)
925 if (shpnt->io_port)
926 release_region(shpnt->io_port, IO_RANGE);
927 #endif
928
929 #ifdef __ISAPNP__
930 if (HOSTDATA(shpnt)->pnpdev)
931 pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
932 #endif
933
934 scsi_remove_host(shpnt);
935 scsi_host_put(shpnt);
936 }
937
938
939 /*
940 * setup controller to generate interrupts depending
941 * on current state (lock has to be acquired)
942 *
943 */
944 static int setup_expected_interrupts(struct Scsi_Host *shpnt)
945 {
946 if(CURRENT_SC) {
947 CURRENT_SC->SCp.phase |= 1 << 16;
948
949 if(CURRENT_SC->SCp.phase & selecting) {
950 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
951 SETPORT(SSTAT1, SELTO);
952 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
953 SETPORT(SIMODE1, ENSELTIMO);
954 } else {
955 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
956 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
957 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
958 }
959 } else if(STATE==seldi) {
960 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
961 SETPORT(SIMODE0, 0);
962 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
963 } else {
964 DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
965 CMDINFO(CURRENT_SC),
966 DISCONNECTED_SC ? "(reselection)" : "",
967 ISSUE_SC ? "(busfree)" : "");
968 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
969 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
970 }
971
972 if(!HOSTDATA(shpnt)->in_intr)
973 SETBITS(DMACNTRL0, INTEN);
974
975 return TESTHI(DMASTAT, INTSTAT);
976 }
977
978
979 /*
980 * Queue a command and setup interrupts for a free bus.
981 */
982 static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int phase, void (*done)(Scsi_Cmnd *))
983 {
984 struct Scsi_Host *shpnt = SCpnt->device->host;
985 unsigned long flags;
986
987 #if defined(AHA152X_DEBUG)
988 if (HOSTDATA(shpnt)->debug & debug_queue) {
989 printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
990 CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len, SCpnt->use_sg, SCpnt->request_bufflen);
991 __scsi_print_command(SCpnt->cmnd);
992 }
993 #endif
994
995 SCpnt->scsi_done = done;
996 SCpnt->resid = SCpnt->request_bufflen;
997 SCpnt->SCp.phase = not_issued | phase;
998 SCpnt->SCp.Status = CHECK_CONDITION;
999 SCpnt->SCp.Message = 0;
1000 SCpnt->SCp.have_data_in = 0;
1001 SCpnt->SCp.sent_command = 0;
1002
1003 if(SCpnt->SCp.phase & (resetting|check_condition)) {
1004 if(SCpnt->host_scribble==0 || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
1005 printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
1006 return FAILED;
1007 }
1008 } else {
1009 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
1010 if(SCpnt->host_scribble==0) {
1011 printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
1012 return FAILED;
1013 }
1014 }
1015
1016 SCNEXT(SCpnt) = NULL;
1017 SCSEM(SCpnt) = sem;
1018
1019 /* setup scratch area
1020 SCp.ptr : buffer pointer
1021 SCp.this_residual : buffer length
1022 SCp.buffer : next buffer
1023 SCp.buffers_residual : left buffers in list
1024 SCp.phase : current state of the command */
1025 if (SCpnt->use_sg) {
1026 SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer;
1027 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
1028 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
1029 SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
1030 } else {
1031 SCpnt->SCp.ptr = (char *) SCpnt->request_buffer;
1032 SCpnt->SCp.this_residual = SCpnt->request_bufflen;
1033 SCpnt->SCp.buffer = NULL;
1034 SCpnt->SCp.buffers_residual = 0;
1035 }
1036
1037 DO_LOCK(flags);
1038
1039 #if defined(AHA152X_STAT)
1040 HOSTDATA(shpnt)->total_commands++;
1041 #endif
1042
1043 /* Turn led on, when this is the first command. */
1044 HOSTDATA(shpnt)->commands++;
1045 if (HOSTDATA(shpnt)->commands==1)
1046 SETPORT(PORTA, 1);
1047
1048 append_SC(&ISSUE_SC, SCpnt);
1049
1050 if(!HOSTDATA(shpnt)->in_intr)
1051 setup_expected_interrupts(shpnt);
1052
1053 DO_UNLOCK(flags);
1054
1055 return 0;
1056 }
1057
1058 /*
1059 * queue a command
1060 *
1061 */
1062 static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
1063 {
1064 #if 0
1065 if(*SCpnt->cmnd == REQUEST_SENSE) {
1066 SCpnt->result = 0;
1067 done(SCpnt);
1068
1069 return 0;
1070 }
1071 #endif
1072
1073 return aha152x_internal_queue(SCpnt, NULL, 0, done);
1074 }
1075
1076
1077 /*
1078 *
1079 *
1080 */
1081 static void reset_done(Scsi_Cmnd *SCpnt)
1082 {
1083 #if 0
1084 struct Scsi_Host *shpnt = SCpnt->host;
1085 DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
1086 #endif
1087 if(SCSEM(SCpnt)) {
1088 up(SCSEM(SCpnt));
1089 } else {
1090 printk(KERN_ERR "aha152x: reset_done w/o semaphore\n");
1091 }
1092 }
1093
1094 /*
1095 * Abort a command
1096 *
1097 */
1098 static int aha152x_abort(Scsi_Cmnd *SCpnt)
1099 {
1100 struct Scsi_Host *shpnt = SCpnt->device->host;
1101 Scsi_Cmnd *ptr;
1102 unsigned long flags;
1103
1104 #if defined(AHA152X_DEBUG)
1105 if(HOSTDATA(shpnt)->debug & debug_eh) {
1106 printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
1107 show_queues(shpnt);
1108 }
1109 #endif
1110
1111 DO_LOCK(flags);
1112
1113 ptr=remove_SC(&ISSUE_SC, SCpnt);
1114
1115 if(ptr) {
1116 DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
1117
1118 HOSTDATA(shpnt)->commands--;
1119 if (!HOSTDATA(shpnt)->commands)
1120 SETPORT(PORTA, 0);
1121 DO_UNLOCK(flags);
1122
1123 kfree(SCpnt->host_scribble);
1124 SCpnt->host_scribble=NULL;
1125
1126 return SUCCESS;
1127 }
1128
1129 DO_UNLOCK(flags);
1130
1131 /*
1132 * FIXME:
1133 * for current command: queue ABORT for message out and raise ATN
1134 * for disconnected command: pseudo SC with ABORT message or ABORT on reselection?
1135 *
1136 */
1137
1138 printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
1139
1140 return FAILED;
1141 }
1142
1143 static void timer_expired(unsigned long p)
1144 {
1145 Scsi_Cmnd *SCp = (Scsi_Cmnd *)p;
1146 struct semaphore *sem = SCSEM(SCp);
1147 struct Scsi_Host *shpnt = SCp->device->host;
1148 unsigned long flags;
1149
1150 /* remove command from issue queue */
1151 DO_LOCK(flags);
1152 remove_SC(&ISSUE_SC, SCp);
1153 DO_UNLOCK(flags);
1154
1155 up(sem);
1156 }
1157
1158 /*
1159 * Reset a device
1160 *
1161 */
1162 static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
1163 {
1164 struct Scsi_Host *shpnt = SCpnt->device->host;
1165 DECLARE_MUTEX_LOCKED(sem);
1166 struct timer_list timer;
1167 int ret, issued, disconnected;
1168 unsigned long flags;
1169
1170 #if defined(AHA152X_DEBUG)
1171 if(HOSTDATA(shpnt)->debug & debug_eh) {
1172 printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
1173 show_queues(shpnt);
1174 }
1175 #endif
1176
1177 if(CURRENT_SC==SCpnt) {
1178 printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
1179 return FAILED;
1180 }
1181
1182 DO_LOCK(flags);
1183 issued = remove_SC(&ISSUE_SC, SCpnt)==0;
1184 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
1185 DO_UNLOCK(flags);
1186
1187 SCpnt->cmd_len = 0;
1188 SCpnt->use_sg = 0;
1189 SCpnt->request_buffer = NULL;
1190 SCpnt->request_bufflen = 0;
1191
1192 init_timer(&timer);
1193 timer.data = (unsigned long) SCpnt;
1194 timer.expires = jiffies + 100*HZ; /* 10s */
1195 timer.function = (void (*)(unsigned long)) timer_expired;
1196
1197 aha152x_internal_queue(SCpnt, &sem, resetting, reset_done);
1198 add_timer(&timer);
1199 down(&sem);
1200 del_timer(&timer);
1201
1202 SCpnt->cmd_len = SCpnt->old_cmd_len;
1203 SCpnt->use_sg = SCpnt->old_use_sg;
1204 SCpnt->request_buffer = SCpnt->buffer;
1205 SCpnt->request_bufflen = SCpnt->bufflen;
1206
1207 DO_LOCK(flags);
1208
1209 if(SCpnt->SCp.phase & resetted) {
1210 HOSTDATA(shpnt)->commands--;
1211 if (!HOSTDATA(shpnt)->commands)
1212 SETPORT(PORTA, 0);
1213 kfree(SCpnt->host_scribble);
1214 SCpnt->host_scribble=NULL;
1215
1216 ret = SUCCESS;
1217 } else {
1218 /* requeue */
1219 if(!issued) {
1220 append_SC(&ISSUE_SC, SCpnt);
1221 } else if(disconnected) {
1222 append_SC(&DISCONNECTED_SC, SCpnt);
1223 }
1224
1225 ret = FAILED;
1226 }
1227
1228 DO_UNLOCK(flags);
1229 return ret;
1230 }
1231
1232 static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
1233 {
1234 Scsi_Cmnd *ptr;
1235
1236 ptr=*SCs;
1237 while(ptr) {
1238 Scsi_Cmnd *next;
1239
1240 if(SCDATA(ptr)) {
1241 next = SCNEXT(ptr);
1242 } else {
1243 printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
1244 next = NULL;
1245 }
1246
1247 if (!ptr->device->soft_reset) {
1248 DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
1249 remove_SC(SCs, ptr);
1250 HOSTDATA(shpnt)->commands--;
1251 kfree(ptr->host_scribble);
1252 ptr->host_scribble=NULL;
1253 }
1254
1255 ptr = next;
1256 }
1257 }
1258
1259 /*
1260 * Reset the bus
1261 *
1262 */
1263 static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
1264 {
1265 unsigned long flags;
1266
1267 DO_LOCK(flags);
1268
1269 #if defined(AHA152X_DEBUG)
1270 if(HOSTDATA(shpnt)->debug & debug_eh) {
1271 printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
1272 show_queues(shpnt);
1273 }
1274 #endif
1275
1276 free_hard_reset_SCs(shpnt, &ISSUE_SC);
1277 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
1278
1279 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
1280
1281 SETPORT(SCSISEQ, SCSIRSTO);
1282 mdelay(256);
1283 SETPORT(SCSISEQ, 0);
1284 mdelay(DELAY);
1285
1286 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
1287
1288 setup_expected_interrupts(shpnt);
1289 if(HOSTDATA(shpnt)->commands==0)
1290 SETPORT(PORTA, 0);
1291
1292 DO_UNLOCK(flags);
1293
1294 return SUCCESS;
1295 }
1296
1297 /*
1298 * Reset the bus
1299 *
1300 */
1301 static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
1302 {
1303 return aha152x_bus_reset_host(SCpnt->device->host);
1304 }
1305
1306 /*
1307 * Restore default values to the AIC-6260 registers and reset the fifos
1308 *
1309 */
1310 static void reset_ports(struct Scsi_Host *shpnt)
1311 {
1312 unsigned long flags;
1313
1314 /* disable interrupts */
1315 SETPORT(DMACNTRL0, RSTFIFO);
1316
1317 SETPORT(SCSISEQ, 0);
1318
1319 SETPORT(SXFRCTL1, 0);
1320 SETPORT(SCSISIG, 0);
1321 SETRATE(0);
1322
1323 /* clear all interrupt conditions */
1324 SETPORT(SSTAT0, 0x7f);
1325 SETPORT(SSTAT1, 0xef);
1326
1327 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR);
1328
1329 SETPORT(DMACNTRL0, 0);
1330 SETPORT(DMACNTRL1, 0);
1331
1332 SETPORT(BRSTCNTRL, 0xf1);
1333
1334 /* clear SCSI fifos and transfer count */
1335 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1336 SETPORT(SXFRCTL0, CH1);
1337
1338 DO_LOCK(flags);
1339 setup_expected_interrupts(shpnt);
1340 DO_UNLOCK(flags);
1341 }
1342
1343 /*
1344 * Reset the host (bus and controller)
1345 *
1346 */
1347 int aha152x_host_reset_host(struct Scsi_Host *shpnt)
1348 {
1349 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
1350
1351 aha152x_bus_reset_host(shpnt);
1352
1353 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
1354 reset_ports(shpnt);
1355
1356 return SUCCESS;
1357 }
1358
1359 /*
1360 * Reset the host (bus and controller)
1361 *
1362 */
1363 static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
1364 {
1365 return aha152x_host_reset_host(SCpnt->device->host);
1366 }
1367
1368 /*
1369 * Return the "logical geometry"
1370 *
1371 */
1372 static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1373 sector_t capacity, int *info_array)
1374 {
1375 struct Scsi_Host *shpnt = sdev->host;
1376
1377 /* try default translation */
1378 info_array[0] = 64;
1379 info_array[1] = 32;
1380 info_array[2] = (unsigned long)capacity / (64 * 32);
1381
1382 /* for disks >1GB do some guessing */
1383 if (info_array[2] >= 1024) {
1384 int info[3];
1385
1386 /* try to figure out the geometry from the partition table */
1387 if (scsicam_bios_param(bdev, capacity, info) < 0 ||
1388 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
1389 if (EXT_TRANS) {
1390 printk(KERN_NOTICE
1391 "aha152x: unable to verify geometry for disk with >1GB.\n"
1392 " using extended translation.\n");
1393 info_array[0] = 255;
1394 info_array[1] = 63;
1395 info_array[2] = (unsigned long)capacity / (255 * 63);
1396 } else {
1397 printk(KERN_NOTICE
1398 "aha152x: unable to verify geometry for disk with >1GB.\n"
1399 " Using default translation. Please verify yourself.\n"
1400 " Perhaps you need to enable extended translation in the driver.\n"
1401 " See Documentation/scsi/aha152x.txt for details.\n");
1402 }
1403 } else {
1404 info_array[0] = info[0];
1405 info_array[1] = info[1];
1406 info_array[2] = info[2];
1407
1408 if (info[0] == 255 && !EXT_TRANS) {
1409 printk(KERN_NOTICE
1410 "aha152x: current partition table is using extended translation.\n"
1411 " using it also, although it's not explicitly enabled.\n");
1412 }
1413 }
1414 }
1415
1416 return 0;
1417 }
1418
1419 /*
1420 * Internal done function
1421 *
1422 */
1423 static void done(struct Scsi_Host *shpnt, int error)
1424 {
1425 if (CURRENT_SC) {
1426 if(DONE_SC)
1427 printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
1428
1429 DONE_SC = CURRENT_SC;
1430 CURRENT_SC = NULL;
1431 DONE_SC->result = error;
1432 } else
1433 printk(KERN_ERR "aha152x: done() called outside of command\n");
1434 }
1435
1436 static struct work_struct aha152x_tq;
1437
1438 /*
1439 * Run service completions on the card with interrupts enabled.
1440 *
1441 */
1442 static void run(void)
1443 {
1444 int i;
1445 for (i = 0; i<ARRAY_SIZE(aha152x_host); i++) {
1446 is_complete(aha152x_host[i]);
1447 }
1448 }
1449
1450 /*
1451 * Interrupt handler
1452 *
1453 */
1454 static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
1455 {
1456 struct Scsi_Host *shpnt = lookup_irq(irqno);
1457 unsigned long flags;
1458 unsigned char rev, dmacntrl0;
1459
1460 if (!shpnt) {
1461 printk(KERN_ERR "aha152x: catched interrupt %d for unknown controller.\n", irqno);
1462 return IRQ_NONE;
1463 }
1464
1465 /*
1466 * Read a couple of registers that are known to not be all 1's. If
1467 * we read all 1's (-1), that means that either:
1468 *
1469 * a. The host adapter chip has gone bad, and we cannot control it,
1470 * OR
1471 * b. The host adapter is a PCMCIA card that has been ejected
1472 *
1473 * In either case, we cannot do anything with the host adapter at
1474 * this point in time. So just ignore the interrupt and return.
1475 * In the latter case, the interrupt might actually be meant for
1476 * someone else sharing this IRQ, and that driver will handle it.
1477 */
1478 rev = GETPORT(REV);
1479 dmacntrl0 = GETPORT(DMACNTRL0);
1480 if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
1481 return IRQ_NONE;
1482
1483 if( TESTLO(DMASTAT, INTSTAT) )
1484 return IRQ_NONE;
1485
1486 /* no more interrupts from the controller, while we're busy.
1487 INTEN is restored by the BH handler */
1488 CLRBITS(DMACNTRL0, INTEN);
1489
1490 DO_LOCK(flags);
1491 if( HOSTDATA(shpnt)->service==0 ) {
1492 HOSTDATA(shpnt)->service=1;
1493
1494 /* Poke the BH handler */
1495 INIT_WORK(&aha152x_tq, (void *) run, NULL);
1496 schedule_work(&aha152x_tq);
1497 }
1498 DO_UNLOCK(flags);
1499
1500 return IRQ_HANDLED;
1501 }
1502
1503 /*
1504 * busfree phase
1505 * - handle completition/disconnection/error of current command
1506 * - start selection for next command (if any)
1507 */
1508 static void busfree_run(struct Scsi_Host *shpnt)
1509 {
1510 unsigned long flags;
1511 #if defined(AHA152X_STAT)
1512 int action=0;
1513 #endif
1514
1515 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1516 SETPORT(SXFRCTL0, CH1);
1517
1518 SETPORT(SSTAT1, CLRBUSFREE);
1519
1520 if(CURRENT_SC) {
1521 #if defined(AHA152X_STAT)
1522 action++;
1523 #endif
1524 CURRENT_SC->SCp.phase &= ~syncneg;
1525
1526 if(CURRENT_SC->SCp.phase & completed) {
1527 /* target sent COMMAND COMPLETE */
1528 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
1529
1530 } else if(CURRENT_SC->SCp.phase & aborted) {
1531 DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
1532 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
1533
1534 } else if(CURRENT_SC->SCp.phase & resetted) {
1535 DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
1536 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
1537
1538 } else if(CURRENT_SC->SCp.phase & disconnected) {
1539 /* target sent DISCONNECT */
1540 DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
1541 CMDINFO(CURRENT_SC),
1542 CURRENT_SC->resid,
1543 CURRENT_SC->request_bufflen);
1544 #if defined(AHA152X_STAT)
1545 HOSTDATA(shpnt)->disconnections++;
1546 #endif
1547 append_SC(&DISCONNECTED_SC, CURRENT_SC);
1548 CURRENT_SC->SCp.phase |= 1 << 16;
1549 CURRENT_SC = NULL;
1550
1551 } else {
1552 done(shpnt, DID_ERROR << 16);
1553 }
1554 #if defined(AHA152X_STAT)
1555 } else {
1556 HOSTDATA(shpnt)->busfree_without_old_command++;
1557 #endif
1558 }
1559
1560 DO_LOCK(flags);
1561
1562 if(DONE_SC) {
1563 #if defined(AHA152X_STAT)
1564 action++;
1565 #endif
1566
1567 if(DONE_SC->SCp.phase & check_condition) {
1568 #if 0
1569 if(HOSTDATA(shpnt)->debug & debug_eh) {
1570 printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
1571 scsi_print_sense("bh", DONE_SC);
1572 }
1573 #endif
1574
1575 /* restore old command */
1576 memcpy((void *) DONE_SC->cmnd, (void *) DONE_SC->data_cmnd, sizeof(DONE_SC->data_cmnd));
1577 DONE_SC->request_buffer = DONE_SC->buffer;
1578 DONE_SC->request_bufflen = DONE_SC->bufflen;
1579 DONE_SC->use_sg = DONE_SC->old_use_sg;
1580 DONE_SC->cmd_len = DONE_SC->old_cmd_len;
1581
1582 DONE_SC->SCp.Status = 0x02;
1583
1584 HOSTDATA(shpnt)->commands--;
1585 if (!HOSTDATA(shpnt)->commands)
1586 SETPORT(PORTA, 0); /* turn led off */
1587 } else if(DONE_SC->SCp.Status==0x02) {
1588 #if defined(AHA152X_STAT)
1589 HOSTDATA(shpnt)->busfree_with_check_condition++;
1590 #endif
1591 #if 0
1592 DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
1593 #endif
1594
1595 if(!(DONE_SC->SCp.Status & not_issued)) {
1596 Scsi_Cmnd *ptr = DONE_SC;
1597 DONE_SC=NULL;
1598 #if 0
1599 DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
1600 #endif
1601
1602 ptr->cmnd[0] = REQUEST_SENSE;
1603 ptr->cmnd[1] = 0;
1604 ptr->cmnd[2] = 0;
1605 ptr->cmnd[3] = 0;
1606 ptr->cmnd[4] = sizeof(ptr->sense_buffer);
1607 ptr->cmnd[5] = 0;
1608 ptr->cmd_len = 6;
1609 ptr->use_sg = 0;
1610 ptr->request_buffer = ptr->sense_buffer;
1611 ptr->request_bufflen = sizeof(ptr->sense_buffer);
1612
1613 DO_UNLOCK(flags);
1614 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
1615 DO_LOCK(flags);
1616 #if 0
1617 } else {
1618 DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
1619 #endif
1620 }
1621 }
1622
1623 if(DONE_SC && DONE_SC->scsi_done) {
1624 #if defined(AHA152X_DEBUG)
1625 int hostno=DONE_SC->device->host->host_no;
1626 int id=DONE_SC->device->id & 0xf;
1627 int lun=DONE_SC->device->lun & 0x7;
1628 #endif
1629 Scsi_Cmnd *ptr = DONE_SC;
1630 DONE_SC=NULL;
1631
1632 /* turn led off, when no commands are in the driver */
1633 HOSTDATA(shpnt)->commands--;
1634 if (!HOSTDATA(shpnt)->commands)
1635 SETPORT(PORTA, 0); /* turn led off */
1636
1637 if(ptr->scsi_done != reset_done) {
1638 kfree(ptr->host_scribble);
1639 ptr->host_scribble=NULL;
1640 }
1641
1642 DO_UNLOCK(flags);
1643 DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
1644 ptr->scsi_done(ptr);
1645 DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
1646 DO_LOCK(flags);
1647 }
1648
1649 DONE_SC=NULL;
1650 #if defined(AHA152X_STAT)
1651 } else {
1652 HOSTDATA(shpnt)->busfree_without_done_command++;
1653 #endif
1654 }
1655
1656 if(ISSUE_SC)
1657 CURRENT_SC = remove_first_SC(&ISSUE_SC);
1658
1659 DO_UNLOCK(flags);
1660
1661 if(CURRENT_SC) {
1662 #if defined(AHA152X_STAT)
1663 action++;
1664 #endif
1665 CURRENT_SC->SCp.phase |= selecting;
1666
1667 DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
1668
1669 /* clear selection timeout */
1670 SETPORT(SSTAT1, SELTO);
1671
1672 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
1673 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
1674 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
1675 } else {
1676 #if defined(AHA152X_STAT)
1677 HOSTDATA(shpnt)->busfree_without_new_command++;
1678 #endif
1679 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
1680 }
1681
1682 #if defined(AHA152X_STAT)
1683 if(!action)
1684 HOSTDATA(shpnt)->busfree_without_any_action++;
1685 #endif
1686 }
1687
1688 /*
1689 * Selection done (OUT)
1690 * - queue IDENTIFY message and SDTR to selected target for message out
1691 * (ATN asserted automagically via ENAUTOATNO in busfree())
1692 */
1693 static void seldo_run(struct Scsi_Host *shpnt)
1694 {
1695 SETPORT(SCSISIG, 0);
1696 SETPORT(SSTAT1, CLRBUSFREE);
1697 SETPORT(SSTAT1, CLRPHASECHG);
1698
1699 CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
1700
1701 SETPORT(SCSISEQ, 0);
1702
1703 if (TESTLO(SSTAT0, SELDO)) {
1704 printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
1705 done(shpnt, DID_NO_CONNECT << 16);
1706 return;
1707 }
1708
1709 SETPORT(SSTAT0, CLRSELDO);
1710
1711 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1712
1713 if (CURRENT_SC->SCp.phase & aborting) {
1714 ADDMSGO(ABORT);
1715 } else if (CURRENT_SC->SCp.phase & resetting) {
1716 ADDMSGO(BUS_DEVICE_RESET);
1717 } else if (SYNCNEG==0 && SYNCHRONOUS) {
1718 CURRENT_SC->SCp.phase |= syncneg;
1719 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
1720 SYNCNEG=1; /* negotiation in progress */
1721 }
1722
1723 SETRATE(SYNCRATE);
1724 }
1725
1726 /*
1727 * Selection timeout
1728 * - return command to mid-level with failure cause
1729 *
1730 */
1731 static void selto_run(struct Scsi_Host *shpnt)
1732 {
1733 SETPORT(SCSISEQ, 0);
1734 SETPORT(SSTAT1, CLRSELTIMO);
1735
1736 DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
1737
1738 if(!CURRENT_SC) {
1739 DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
1740 return;
1741 }
1742
1743 CURRENT_SC->SCp.phase &= ~selecting;
1744
1745 if (CURRENT_SC->SCp.phase & aborted) {
1746 DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
1747 done(shpnt, DID_ABORT << 16);
1748 } else if (TESTLO(SSTAT0, SELINGO)) {
1749 DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
1750 done(shpnt, DID_BUS_BUSY << 16);
1751 } else {
1752 /* ARBITRATION won, but SELECTION failed */
1753 DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
1754 done(shpnt, DID_NO_CONNECT << 16);
1755 }
1756 }
1757
1758 /*
1759 * Selection in done
1760 * - put current command back to issue queue
1761 * (reconnection of a disconnected nexus instead
1762 * of successful selection out)
1763 *
1764 */
1765 static void seldi_run(struct Scsi_Host *shpnt)
1766 {
1767 int selid;
1768 int target;
1769 unsigned long flags;
1770
1771 SETPORT(SCSISIG, 0);
1772 SETPORT(SSTAT0, CLRSELDI);
1773 SETPORT(SSTAT1, CLRBUSFREE);
1774 SETPORT(SSTAT1, CLRPHASECHG);
1775
1776 if(CURRENT_SC) {
1777 if(!(CURRENT_SC->SCp.phase & not_issued))
1778 printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
1779
1780 DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
1781
1782 DO_LOCK(flags);
1783 append_SC(&ISSUE_SC, CURRENT_SC);
1784 DO_UNLOCK(flags);
1785
1786 CURRENT_SC = NULL;
1787 }
1788
1789 if(!DISCONNECTED_SC) {
1790 DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
1791 return;
1792 }
1793
1794 RECONN_TARGET=-1;
1795
1796 selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
1797
1798 if (selid==0) {
1799 printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
1800 return;
1801 }
1802
1803 for(target=7; !(selid & (1 << target)); target--)
1804 ;
1805
1806 if(selid & ~(1 << target)) {
1807 printk("aha152x%d: multiple targets reconnected (%02x)\n",
1808 HOSTNO, selid);
1809 }
1810
1811
1812 SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
1813 SETPORT(SCSISEQ, 0);
1814
1815 SETRATE(HOSTDATA(shpnt)->syncrate[target]);
1816
1817 RECONN_TARGET=target;
1818 DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
1819 }
1820
1821 /*
1822 * message in phase
1823 * - handle initial message after reconnection to identify
1824 * reconnecting nexus
1825 * - queue command on DISCONNECTED_SC on DISCONNECT message
1826 * - set completed flag on COMMAND COMPLETE
1827 * (other completition code moved to busfree_run)
1828 * - handle response to SDTR
1829 * - clear synchronous transfer agreements on BUS RESET
1830 *
1831 * FIXME: what about SAVE POINTERS, RESTORE POINTERS?
1832 *
1833 */
1834 static void msgi_run(struct Scsi_Host *shpnt)
1835 {
1836 for(;;) {
1837 int sstat1 = GETPORT(SSTAT1);
1838
1839 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
1840 return;
1841
1842 if(TESTLO(SSTAT0,SPIORDY)) {
1843 DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
1844 return;
1845 }
1846
1847 ADDMSGI(GETPORT(SCSIDAT));
1848
1849 #if defined(AHA152X_DEBUG)
1850 if (HOSTDATA(shpnt)->debug & debug_msgi) {
1851 printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
1852 spi_print_msg(&MSGI(0));
1853 printk("\n");
1854 }
1855 #endif
1856
1857 if(!CURRENT_SC) {
1858 if(LASTSTATE!=seldi) {
1859 printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
1860 }
1861
1862 /*
1863 * Handle reselection
1864 */
1865 if(!(MSGI(0) & IDENTIFY_BASE)) {
1866 printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
1867 continue;
1868 }
1869
1870 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
1871
1872 if (!CURRENT_SC) {
1873 show_queues(shpnt);
1874 printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
1875 continue;
1876 }
1877
1878 DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
1879
1880 CURRENT_SC->SCp.Message = MSGI(0);
1881 CURRENT_SC->SCp.phase &= ~disconnected;
1882
1883 MSGILEN=0;
1884
1885 /* next message if any */
1886 continue;
1887 }
1888
1889 CURRENT_SC->SCp.Message = MSGI(0);
1890
1891 switch (MSGI(0)) {
1892 case DISCONNECT:
1893 if (!RECONNECT)
1894 printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
1895
1896 CURRENT_SC->SCp.phase |= disconnected;
1897 break;
1898
1899 case COMMAND_COMPLETE:
1900 if(CURRENT_SC->SCp.phase & completed)
1901 DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
1902
1903 CURRENT_SC->SCp.phase |= completed;
1904 break;
1905
1906 case MESSAGE_REJECT:
1907 if (SYNCNEG==1) {
1908 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
1909 SYNCNEG=2; /* negotiation completed */
1910 } else
1911 printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
1912 break;
1913
1914 case SAVE_POINTERS:
1915 break;
1916
1917 case RESTORE_POINTERS:
1918 break;
1919
1920 case EXTENDED_MESSAGE:
1921 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
1922 /* not yet completed */
1923 continue;
1924 }
1925
1926 switch (MSGI(2)) {
1927 case EXTENDED_SDTR:
1928 {
1929 long ticks;
1930
1931 if (MSGI(1) != 3) {
1932 printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
1933 break;
1934 }
1935
1936 if (!HOSTDATA(shpnt)->synchronous)
1937 break;
1938
1939 printk(INFO_LEAD, CMDINFO(CURRENT_SC));
1940 spi_print_msg(&MSGI(0));
1941 printk("\n");
1942
1943 ticks = (MSGI(3) * 4 + 49) / 50;
1944
1945 if (syncneg) {
1946 /* negotiation in progress */
1947 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
1948 ADDMSGO(MESSAGE_REJECT);
1949 printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
1950 break;
1951 }
1952
1953 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1954 } else if (ticks <= 9 && MSGI(4) >= 1) {
1955 ADDMSGO(EXTENDED_MESSAGE);
1956 ADDMSGO(3);
1957 ADDMSGO(EXTENDED_SDTR);
1958 if (ticks < 4) {
1959 ticks = 4;
1960 ADDMSGO(50);
1961 } else
1962 ADDMSGO(MSGI(3));
1963
1964 if (MSGI(4) > 8)
1965 MSGI(4) = 8;
1966
1967 ADDMSGO(MSGI(4));
1968
1969 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1970 } else {
1971 /* requested SDTR is too slow, do it asynchronously */
1972 printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
1973 ADDMSGO(MESSAGE_REJECT);
1974 }
1975
1976 SYNCNEG=2; /* negotiation completed */
1977 SETRATE(SYNCRATE);
1978 }
1979 break;
1980
1981 case BUS_DEVICE_RESET:
1982 {
1983 int i;
1984
1985 for(i=0; i<8; i++) {
1986 HOSTDATA(shpnt)->syncrate[i]=0;
1987 HOSTDATA(shpnt)->syncneg[i]=0;
1988 }
1989
1990 }
1991 break;
1992
1993 case EXTENDED_MODIFY_DATA_POINTER:
1994 case EXTENDED_EXTENDED_IDENTIFY:
1995 case EXTENDED_WDTR:
1996 default:
1997 ADDMSGO(MESSAGE_REJECT);
1998 break;
1999 }
2000 break;
2001 }
2002
2003 MSGILEN=0;
2004 }
2005 }
2006
2007 static void msgi_end(struct Scsi_Host *shpnt)
2008 {
2009 if(MSGILEN>0)
2010 printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
2011
2012 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
2013 DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
2014 SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
2015 }
2016 }
2017
2018 /*
2019 * message out phase
2020 *
2021 */
2022 static void msgo_init(struct Scsi_Host *shpnt)
2023 {
2024 if(MSGOLEN==0) {
2025 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
2026 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
2027 } else {
2028 printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
2029 ADDMSGO(MESSAGE_REJECT);
2030 }
2031 }
2032
2033 #if defined(AHA152X_DEBUG)
2034 if(HOSTDATA(shpnt)->debug & debug_msgo) {
2035 int i;
2036
2037 printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
2038 for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
2039 ;
2040 printk(")\n");
2041 }
2042 #endif
2043 }
2044
2045 /*
2046 * message out phase
2047 *
2048 */
2049 static void msgo_run(struct Scsi_Host *shpnt)
2050 {
2051 if(MSGO_I==MSGOLEN)
2052 DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2053
2054 while(MSGO_I<MSGOLEN) {
2055 DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
2056
2057 if(TESTLO(SSTAT0, SPIORDY)) {
2058 DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2059 return;
2060 }
2061
2062 if (MSGO_I==MSGOLEN-1) {
2063 /* Leave MESSAGE OUT after transfer */
2064 SETPORT(SSTAT1, CLRATNO);
2065 }
2066
2067
2068 if (MSGO(MSGO_I) & IDENTIFY_BASE)
2069 CURRENT_SC->SCp.phase |= identified;
2070
2071 if (MSGO(MSGO_I)==ABORT)
2072 CURRENT_SC->SCp.phase |= aborted;
2073
2074 if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
2075 CURRENT_SC->SCp.phase |= resetted;
2076
2077 SETPORT(SCSIDAT, MSGO(MSGO_I++));
2078 }
2079 }
2080
2081 static void msgo_end(struct Scsi_Host *shpnt)
2082 {
2083 if(MSGO_I<MSGOLEN) {
2084 printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2085 if(SYNCNEG==1) {
2086 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
2087 SYNCNEG=2;
2088 }
2089 }
2090
2091 MSGO_I = 0;
2092 MSGOLEN = 0;
2093 }
2094
2095 /*
2096 * command phase
2097 *
2098 */
2099 static void cmd_init(struct Scsi_Host *shpnt)
2100 {
2101 if (CURRENT_SC->SCp.sent_command) {
2102 printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
2103 done(shpnt, DID_ERROR << 16);
2104 return;
2105 }
2106
2107 #if defined(AHA152X_DEBUG)
2108 if (HOSTDATA(shpnt)->debug & debug_cmd) {
2109 printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
2110 __scsi_print_command(CURRENT_SC->cmnd);
2111 }
2112 #endif
2113
2114 CMD_I=0;
2115 }
2116
2117 /*
2118 * command phase
2119 *
2120 */
2121 static void cmd_run(struct Scsi_Host *shpnt)
2122 {
2123 if(CMD_I==CURRENT_SC->cmd_len) {
2124 DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2125 disp_ports(shpnt);
2126 }
2127
2128 while(CMD_I<CURRENT_SC->cmd_len) {
2129 DPRINTK(debug_cmd, DEBUG_LEAD "command byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), CURRENT_SC->cmnd[CMD_I], CMD_I, CURRENT_SC->cmd_len);
2130
2131 if(TESTLO(SSTAT0, SPIORDY)) {
2132 DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2133 return;
2134 }
2135
2136 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
2137 }
2138 }
2139
2140 static void cmd_end(struct Scsi_Host *shpnt)
2141 {
2142 if(CMD_I<CURRENT_SC->cmd_len)
2143 printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2144 else
2145 CURRENT_SC->SCp.sent_command++;
2146 }
2147
2148 /*
2149 * status phase
2150 *
2151 */
2152 static void status_run(struct Scsi_Host *shpnt)
2153 {
2154 if(TESTLO(SSTAT0,SPIORDY)) {
2155 DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2156 return;
2157 }
2158
2159 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
2160
2161 #if defined(AHA152X_DEBUG)
2162 if (HOSTDATA(shpnt)->debug & debug_status) {
2163 printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
2164 scsi_print_status(CURRENT_SC->SCp.Status);
2165 printk("\n");
2166 }
2167 #endif
2168 }
2169
2170 /*
2171 * data in phase
2172 *
2173 */
2174 static void datai_init(struct Scsi_Host *shpnt)
2175 {
2176 SETPORT(DMACNTRL0, RSTFIFO);
2177 SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
2178
2179 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2180 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2181
2182 SETPORT(SIMODE0, 0);
2183 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
2184
2185 DATA_LEN=0;
2186 DPRINTK(debug_datai,
2187 DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
2188 CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid);
2189 }
2190
2191 static void datai_run(struct Scsi_Host *shpnt)
2192 {
2193 unsigned long the_time;
2194 int fifodata, data_count;
2195
2196 /*
2197 * loop while the phase persists or the fifos are not empty
2198 *
2199 */
2200 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
2201 /* FIXME: maybe this should be done by setting up
2202 * STCNT to trigger ENSWRAP interrupt, instead of
2203 * polling for DFIFOFULL
2204 */
2205 the_time=jiffies + 100*HZ;
2206 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
2207 barrier();
2208
2209 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
2210 printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
2211 disp_ports(shpnt);
2212 break;
2213 }
2214
2215 if(TESTHI(DMASTAT, DFIFOFULL)) {
2216 fifodata = 128;
2217 } else {
2218 the_time=jiffies + 100*HZ;
2219 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
2220 barrier();
2221
2222 if(TESTLO(SSTAT2, SEMPTY)) {
2223 printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
2224 disp_ports(shpnt);
2225 break;
2226 }
2227
2228 fifodata = GETPORT(FIFOSTAT);
2229 }
2230
2231 if(CURRENT_SC->SCp.this_residual>0) {
2232 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
2233 data_count = fifodata>CURRENT_SC->SCp.this_residual ?
2234 CURRENT_SC->SCp.this_residual :
2235 fifodata;
2236 fifodata -= data_count;
2237
2238 if(data_count & 1) {
2239 DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
2240 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2241 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
2242 CURRENT_SC->SCp.this_residual--;
2243 DATA_LEN++;
2244 SETPORT(DMACNTRL0, ENDMA);
2245 }
2246
2247 if(data_count > 1) {
2248 DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
2249 data_count >>= 1;
2250 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2251 CURRENT_SC->SCp.ptr += 2 * data_count;
2252 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2253 DATA_LEN += 2 * data_count;
2254 }
2255
2256 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2257 /* advance to next buffer */
2258 CURRENT_SC->SCp.buffers_residual--;
2259 CURRENT_SC->SCp.buffer++;
2260 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2261 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2262 }
2263 }
2264 } else if(fifodata>0) {
2265 printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
2266 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2267 while(fifodata>0) {
2268 int data;
2269 data=GETPORT(DATAPORT);
2270 DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
2271 fifodata--;
2272 DATA_LEN++;
2273 }
2274 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2275 }
2276 }
2277
2278 if(TESTLO(DMASTAT, INTSTAT) ||
2279 TESTLO(DMASTAT, DFIFOEMP) ||
2280 TESTLO(SSTAT2, SEMPTY) ||
2281 GETPORT(FIFOSTAT)>0) {
2282 /*
2283 * something went wrong, if there's something left in the fifos
2284 * or the phase didn't change
2285 */
2286 printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
2287 disp_ports(shpnt);
2288 }
2289
2290 if(DATA_LEN!=GETSTCNT()) {
2291 printk(ERR_LEAD
2292 "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
2293 CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
2294 disp_ports(shpnt);
2295 mdelay(10000);
2296 }
2297 }
2298
2299 static void datai_end(struct Scsi_Host *shpnt)
2300 {
2301 CURRENT_SC->resid -= GETSTCNT();
2302
2303 DPRINTK(debug_datai,
2304 DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
2305 CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid, GETSTCNT());
2306
2307 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2308 SETPORT(DMACNTRL0, 0);
2309 }
2310
2311 /*
2312 * data out phase
2313 *
2314 */
2315 static void datao_init(struct Scsi_Host *shpnt)
2316 {
2317 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
2318 SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
2319
2320 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2321 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2322
2323 SETPORT(SIMODE0, 0);
2324 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
2325
2326 DATA_LEN = CURRENT_SC->resid;
2327
2328 DPRINTK(debug_datao,
2329 DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
2330 CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid);
2331 }
2332
2333 static void datao_run(struct Scsi_Host *shpnt)
2334 {
2335 unsigned long the_time;
2336 int data_count;
2337
2338 /* until phase changes or all data sent */
2339 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
2340 data_count = 128;
2341 if(data_count > CURRENT_SC->SCp.this_residual)
2342 data_count=CURRENT_SC->SCp.this_residual;
2343
2344 if(TESTLO(DMASTAT, DFIFOEMP)) {
2345 printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
2346 disp_ports(shpnt);
2347 break;
2348 }
2349
2350 if(data_count & 1) {
2351 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
2352 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
2353 CURRENT_SC->SCp.this_residual--;
2354 CURRENT_SC->resid--;
2355 SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
2356 }
2357
2358 if(data_count > 1) {
2359 data_count >>= 1;
2360 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2361 CURRENT_SC->SCp.ptr += 2 * data_count;
2362 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2363 CURRENT_SC->resid -= 2 * data_count;
2364 }
2365
2366 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2367 /* advance to next buffer */
2368 CURRENT_SC->SCp.buffers_residual--;
2369 CURRENT_SC->SCp.buffer++;
2370 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2371 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2372 }
2373
2374 the_time=jiffies + 100*HZ;
2375 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
2376 barrier();
2377
2378 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
2379 printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
2380 disp_ports(shpnt);
2381 break;
2382 }
2383 }
2384 }
2385
2386 static void datao_end(struct Scsi_Host *shpnt)
2387 {
2388 if(TESTLO(DMASTAT, DFIFOEMP)) {
2389 int data_count = (DATA_LEN - CURRENT_SC->resid) - GETSTCNT();
2390
2391 DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
2392 CMDINFO(CURRENT_SC),
2393 data_count,
2394 DATA_LEN-CURRENT_SC->resid,
2395 GETSTCNT());
2396
2397 CURRENT_SC->resid += data_count;
2398
2399 if(CURRENT_SC->use_sg) {
2400 data_count -= CURRENT_SC->SCp.ptr - SG_ADDRESS(CURRENT_SC->SCp.buffer);
2401 while(data_count>0) {
2402 CURRENT_SC->SCp.buffer--;
2403 CURRENT_SC->SCp.buffers_residual++;
2404 data_count -= CURRENT_SC->SCp.buffer->length;
2405 }
2406 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - data_count;
2407 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + data_count;
2408 } else {
2409 CURRENT_SC->SCp.ptr -= data_count;
2410 CURRENT_SC->SCp.this_residual += data_count;
2411 }
2412 }
2413
2414 DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
2415 CMDINFO(CURRENT_SC),
2416 CURRENT_SC->request_bufflen,
2417 CURRENT_SC->resid,
2418 GETSTCNT());
2419
2420 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
2421 SETPORT(SXFRCTL0, CH1);
2422
2423 SETPORT(DMACNTRL0, 0);
2424 }
2425
2426 /*
2427 * figure out what state we're in
2428 *
2429 */
2430 static int update_state(struct Scsi_Host *shpnt)
2431 {
2432 int dataphase=0;
2433 unsigned int stat0 = GETPORT(SSTAT0);
2434 unsigned int stat1 = GETPORT(SSTAT1);
2435
2436 PREVSTATE = STATE;
2437 STATE=unknown;
2438
2439 if(stat1 & SCSIRSTI) {
2440 STATE=rsti;
2441 SETPORT(SCSISEQ,0);
2442 SETPORT(SSTAT1,SCSIRSTI);
2443 } else if(stat0 & SELDI && PREVSTATE==busfree) {
2444 STATE=seldi;
2445 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
2446 STATE=seldo;
2447 } else if(stat1 & SELTO) {
2448 STATE=selto;
2449 } else if(stat1 & BUSFREE) {
2450 STATE=busfree;
2451 SETPORT(SSTAT1,BUSFREE);
2452 } else if(stat1 & SCSIPERR) {
2453 STATE=parerr;
2454 SETPORT(SSTAT1,SCSIPERR);
2455 } else if(stat1 & REQINIT) {
2456 switch(GETPORT(SCSISIG) & P_MASK) {
2457 case P_MSGI: STATE=msgi; break;
2458 case P_MSGO: STATE=msgo; break;
2459 case P_DATAO: STATE=datao; break;
2460 case P_DATAI: STATE=datai; break;
2461 case P_STATUS: STATE=status; break;
2462 case P_CMD: STATE=cmd; break;
2463 }
2464 dataphase=1;
2465 }
2466
2467 if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
2468 printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
2469 disp_ports(shpnt);
2470 }
2471
2472 if(STATE!=PREVSTATE) {
2473 LASTSTATE=PREVSTATE;
2474 }
2475
2476 return dataphase;
2477 }
2478
2479 /*
2480 * handle parity error
2481 *
2482 * FIXME: in which phase?
2483 *
2484 */
2485 static void parerr_run(struct Scsi_Host *shpnt)
2486 {
2487 printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
2488 done(shpnt, DID_PARITY << 16);
2489 }
2490
2491 /*
2492 * handle reset in
2493 *
2494 */
2495 static void rsti_run(struct Scsi_Host *shpnt)
2496 {
2497 Scsi_Cmnd *ptr;
2498
2499 printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
2500
2501 ptr=DISCONNECTED_SC;
2502 while(ptr) {
2503 Scsi_Cmnd *next = SCNEXT(ptr);
2504
2505 if (!ptr->device->soft_reset) {
2506 remove_SC(&DISCONNECTED_SC, ptr);
2507
2508 kfree(ptr->host_scribble);
2509 ptr->host_scribble=NULL;
2510
2511 ptr->result = DID_RESET << 16;
2512 ptr->scsi_done(ptr);
2513 }
2514
2515 ptr = next;
2516 }
2517
2518 if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
2519 done(shpnt, DID_RESET << 16 );
2520 }
2521
2522
2523 /*
2524 * bottom-half handler
2525 *
2526 */
2527 static void is_complete(struct Scsi_Host *shpnt)
2528 {
2529 int dataphase;
2530 unsigned long flags;
2531 int pending;
2532
2533 if(!shpnt)
2534 return;
2535
2536 DO_LOCK(flags);
2537
2538 if( HOSTDATA(shpnt)->service==0 ) {
2539 DO_UNLOCK(flags);
2540 return;
2541 }
2542
2543 HOSTDATA(shpnt)->service = 0;
2544
2545 if(HOSTDATA(shpnt)->in_intr) {
2546 DO_UNLOCK(flags);
2547 /* aha152x_error never returns.. */
2548 aha152x_error(shpnt, "bottom-half already running!?");
2549 }
2550 HOSTDATA(shpnt)->in_intr++;
2551
2552 /*
2553 * loop while there are interrupt conditions pending
2554 *
2555 */
2556 do {
2557 unsigned long start = jiffies;
2558 DO_UNLOCK(flags);
2559
2560 dataphase=update_state(shpnt);
2561
2562 DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2563
2564 /*
2565 * end previous state
2566 *
2567 */
2568 if(PREVSTATE!=STATE && states[PREVSTATE].end)
2569 states[PREVSTATE].end(shpnt);
2570
2571 /*
2572 * disable SPIO mode if previous phase used it
2573 * and this one doesn't
2574 *
2575 */
2576 if(states[PREVSTATE].spio && !states[STATE].spio) {
2577 SETPORT(SXFRCTL0, CH1);
2578 SETPORT(DMACNTRL0, 0);
2579 if(CURRENT_SC)
2580 CURRENT_SC->SCp.phase &= ~spiordy;
2581 }
2582
2583 /*
2584 * accept current dataphase phase
2585 *
2586 */
2587 if(dataphase) {
2588 SETPORT(SSTAT0, REQINIT);
2589 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
2590 SETPORT(SSTAT1, PHASECHG);
2591 }
2592
2593 /*
2594 * enable SPIO mode if previous didn't use it
2595 * and this one does
2596 *
2597 */
2598 if(!states[PREVSTATE].spio && states[STATE].spio) {
2599 SETPORT(DMACNTRL0, 0);
2600 SETPORT(SXFRCTL0, CH1|SPIOEN);
2601 if(CURRENT_SC)
2602 CURRENT_SC->SCp.phase |= spiordy;
2603 }
2604
2605 /*
2606 * initialize for new state
2607 *
2608 */
2609 if(PREVSTATE!=STATE && states[STATE].init)
2610 states[STATE].init(shpnt);
2611
2612 /*
2613 * handle current state
2614 *
2615 */
2616 if(states[STATE].run)
2617 states[STATE].run(shpnt);
2618 else
2619 printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
2620
2621 /*
2622 * setup controller to interrupt on
2623 * the next expected condition and
2624 * loop if it's already there
2625 *
2626 */
2627 DO_LOCK(flags);
2628 pending=setup_expected_interrupts(shpnt);
2629 #if defined(AHA152X_STAT)
2630 HOSTDATA(shpnt)->count[STATE]++;
2631 if(PREVSTATE!=STATE)
2632 HOSTDATA(shpnt)->count_trans[STATE]++;
2633 HOSTDATA(shpnt)->time[STATE] += jiffies-start;
2634 #endif
2635
2636 DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2637 } while(pending);
2638
2639 /*
2640 * enable interrupts and leave bottom-half
2641 *
2642 */
2643 HOSTDATA(shpnt)->in_intr--;
2644 SETBITS(DMACNTRL0, INTEN);
2645 DO_UNLOCK(flags);
2646 }
2647
2648
2649 /*
2650 * Dump the current driver status and panic
2651 */
2652 static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
2653 {
2654 printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
2655 show_queues(shpnt);
2656 panic("aha152x panic\n");
2657 }
2658
2659 /*
2660 * Display registers of AIC-6260
2661 */
2662 static void disp_ports(struct Scsi_Host *shpnt)
2663 {
2664 #if defined(AHA152X_DEBUG)
2665 int s;
2666
2667 printk("\n%s: %s(%s) ",
2668 CURRENT_SC ? "busy" : "waiting",
2669 states[STATE].name,
2670 states[PREVSTATE].name);
2671
2672 s = GETPORT(SCSISEQ);
2673 printk("SCSISEQ( ");
2674 if (s & TEMODEO)
2675 printk("TARGET MODE ");
2676 if (s & ENSELO)
2677 printk("SELO ");
2678 if (s & ENSELI)
2679 printk("SELI ");
2680 if (s & ENRESELI)
2681 printk("RESELI ");
2682 if (s & ENAUTOATNO)
2683 printk("AUTOATNO ");
2684 if (s & ENAUTOATNI)
2685 printk("AUTOATNI ");
2686 if (s & ENAUTOATNP)
2687 printk("AUTOATNP ");
2688 if (s & SCSIRSTO)
2689 printk("SCSIRSTO ");
2690 printk(");");
2691
2692 printk(" SCSISIG(");
2693 s = GETPORT(SCSISIG);
2694 switch (s & P_MASK) {
2695 case P_DATAO:
2696 printk("DATA OUT");
2697 break;
2698 case P_DATAI:
2699 printk("DATA IN");
2700 break;
2701 case P_CMD:
2702 printk("COMMAND");
2703 break;
2704 case P_STATUS:
2705 printk("STATUS");
2706 break;
2707 case P_MSGO:
2708 printk("MESSAGE OUT");
2709 break;
2710 case P_MSGI:
2711 printk("MESSAGE IN");
2712 break;
2713 default:
2714 printk("*invalid*");
2715 break;
2716 }
2717
2718 printk("); ");
2719
2720 printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
2721
2722 printk("SSTAT( ");
2723 s = GETPORT(SSTAT0);
2724 if (s & TARGET)
2725 printk("TARGET ");
2726 if (s & SELDO)
2727 printk("SELDO ");
2728 if (s & SELDI)
2729 printk("SELDI ");
2730 if (s & SELINGO)
2731 printk("SELINGO ");
2732 if (s & SWRAP)
2733 printk("SWRAP ");
2734 if (s & SDONE)
2735 printk("SDONE ");
2736 if (s & SPIORDY)
2737 printk("SPIORDY ");
2738 if (s & DMADONE)
2739 printk("DMADONE ");
2740
2741 s = GETPORT(SSTAT1);
2742 if (s & SELTO)
2743 printk("SELTO ");
2744 if (s & ATNTARG)
2745 printk("ATNTARG ");
2746 if (s & SCSIRSTI)
2747 printk("SCSIRSTI ");
2748 if (s & PHASEMIS)
2749 printk("PHASEMIS ");
2750 if (s & BUSFREE)
2751 printk("BUSFREE ");
2752 if (s & SCSIPERR)
2753 printk("SCSIPERR ");
2754 if (s & PHASECHG)
2755 printk("PHASECHG ");
2756 if (s & REQINIT)
2757 printk("REQINIT ");
2758 printk("); ");
2759
2760
2761 printk("SSTAT( ");
2762
2763 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
2764
2765 if (s & TARGET)
2766 printk("TARGET ");
2767 if (s & SELDO)
2768 printk("SELDO ");
2769 if (s & SELDI)
2770 printk("SELDI ");
2771 if (s & SELINGO)
2772 printk("SELINGO ");
2773 if (s & SWRAP)
2774 printk("SWRAP ");
2775 if (s & SDONE)
2776 printk("SDONE ");
2777 if (s & SPIORDY)
2778 printk("SPIORDY ");
2779 if (s & DMADONE)
2780 printk("DMADONE ");
2781
2782 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
2783
2784 if (s & SELTO)
2785 printk("SELTO ");
2786 if (s & ATNTARG)
2787 printk("ATNTARG ");
2788 if (s & SCSIRSTI)
2789 printk("SCSIRSTI ");
2790 if (s & PHASEMIS)
2791 printk("PHASEMIS ");
2792 if (s & BUSFREE)
2793 printk("BUSFREE ");
2794 if (s & SCSIPERR)
2795 printk("SCSIPERR ");
2796 if (s & PHASECHG)
2797 printk("PHASECHG ");
2798 if (s & REQINIT)
2799 printk("REQINIT ");
2800 printk("); ");
2801
2802 printk("SXFRCTL0( ");
2803
2804 s = GETPORT(SXFRCTL0);
2805 if (s & SCSIEN)
2806 printk("SCSIEN ");
2807 if (s & DMAEN)
2808 printk("DMAEN ");
2809 if (s & CH1)
2810 printk("CH1 ");
2811 if (s & CLRSTCNT)
2812 printk("CLRSTCNT ");
2813 if (s & SPIOEN)
2814 printk("SPIOEN ");
2815 if (s & CLRCH1)
2816 printk("CLRCH1 ");
2817 printk("); ");
2818
2819 printk("SIGNAL( ");
2820
2821 s = GETPORT(SCSISIG);
2822 if (s & SIG_ATNI)
2823 printk("ATNI ");
2824 if (s & SIG_SELI)
2825 printk("SELI ");
2826 if (s & SIG_BSYI)
2827 printk("BSYI ");
2828 if (s & SIG_REQI)
2829 printk("REQI ");
2830 if (s & SIG_ACKI)
2831 printk("ACKI ");
2832 printk("); ");
2833
2834 printk("SELID (%02x), ", GETPORT(SELID));
2835
2836 printk("STCNT (%d), ", GETSTCNT());
2837
2838 printk("SSTAT2( ");
2839
2840 s = GETPORT(SSTAT2);
2841 if (s & SOFFSET)
2842 printk("SOFFSET ");
2843 if (s & SEMPTY)
2844 printk("SEMPTY ");
2845 if (s & SFULL)
2846 printk("SFULL ");
2847 printk("); SFCNT (%d); ", s & (SFULL | SFCNT));
2848
2849 s = GETPORT(SSTAT3);
2850 printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
2851
2852 printk("SSTAT4( ");
2853 s = GETPORT(SSTAT4);
2854 if (s & SYNCERR)
2855 printk("SYNCERR ");
2856 if (s & FWERR)
2857 printk("FWERR ");
2858 if (s & FRERR)
2859 printk("FRERR ");
2860 printk("); ");
2861
2862 printk("DMACNTRL0( ");
2863 s = GETPORT(DMACNTRL0);
2864 printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
2865 printk("%s ", s & DMA ? "DMA" : "PIO");
2866 printk("%s ", s & WRITE_READ ? "WRITE" : "READ");
2867 if (s & ENDMA)
2868 printk("ENDMA ");
2869 if (s & INTEN)
2870 printk("INTEN ");
2871 if (s & RSTFIFO)
2872 printk("RSTFIFO ");
2873 if (s & SWINT)
2874 printk("SWINT ");
2875 printk("); ");
2876
2877 printk("DMASTAT( ");
2878 s = GETPORT(DMASTAT);
2879 if (s & ATDONE)
2880 printk("ATDONE ");
2881 if (s & WORDRDY)
2882 printk("WORDRDY ");
2883 if (s & DFIFOFULL)
2884 printk("DFIFOFULL ");
2885 if (s & DFIFOEMP)
2886 printk("DFIFOEMP ");
2887 printk(")\n");
2888 #endif
2889 }
2890
2891 /*
2892 * display enabled interrupts
2893 */
2894 static void disp_enintr(struct Scsi_Host *shpnt)
2895 {
2896 int s;
2897
2898 printk(KERN_DEBUG "enabled interrupts ( ");
2899
2900 s = GETPORT(SIMODE0);
2901 if (s & ENSELDO)
2902 printk("ENSELDO ");
2903 if (s & ENSELDI)
2904 printk("ENSELDI ");
2905 if (s & ENSELINGO)
2906 printk("ENSELINGO ");
2907 if (s & ENSWRAP)
2908 printk("ENSWRAP ");
2909 if (s & ENSDONE)
2910 printk("ENSDONE ");
2911 if (s & ENSPIORDY)
2912 printk("ENSPIORDY ");
2913 if (s & ENDMADONE)
2914 printk("ENDMADONE ");
2915
2916 s = GETPORT(SIMODE1);
2917 if (s & ENSELTIMO)
2918 printk("ENSELTIMO ");
2919 if (s & ENATNTARG)
2920 printk("ENATNTARG ");
2921 if (s & ENPHASEMIS)
2922 printk("ENPHASEMIS ");
2923 if (s & ENBUSFREE)
2924 printk("ENBUSFREE ");
2925 if (s & ENSCSIPERR)
2926 printk("ENSCSIPERR ");
2927 if (s & ENPHASECHG)
2928 printk("ENPHASECHG ");
2929 if (s & ENREQINIT)
2930 printk("ENREQINIT ");
2931 printk(")\n");
2932 }
2933
2934 /*
2935 * Show the command data of a command
2936 */
2937 static void show_command(Scsi_Cmnd *ptr)
2938 {
2939 scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
2940
2941 __scsi_print_command(ptr->cmnd);
2942
2943 printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
2944 ptr->request_bufflen, ptr->resid);
2945
2946 if (ptr->SCp.phase & not_issued)
2947 printk("not issued|");
2948 if (ptr->SCp.phase & selecting)
2949 printk("selecting|");
2950 if (ptr->SCp.phase & identified)
2951 printk("identified|");
2952 if (ptr->SCp.phase & disconnected)
2953 printk("disconnected|");
2954 if (ptr->SCp.phase & completed)
2955 printk("completed|");
2956 if (ptr->SCp.phase & spiordy)
2957 printk("spiordy|");
2958 if (ptr->SCp.phase & syncneg)
2959 printk("syncneg|");
2960 if (ptr->SCp.phase & aborted)
2961 printk("aborted|");
2962 if (ptr->SCp.phase & resetted)
2963 printk("resetted|");
2964 if( SCDATA(ptr) ) {
2965 printk("; next=0x%p\n", SCNEXT(ptr));
2966 } else {
2967 printk("; next=(host scribble NULL)\n");
2968 }
2969 }
2970
2971 /*
2972 * Dump the queued data
2973 */
2974 static void show_queues(struct Scsi_Host *shpnt)
2975 {
2976 Scsi_Cmnd *ptr;
2977 unsigned long flags;
2978
2979 DO_LOCK(flags);
2980 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
2981 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
2982 show_command(ptr);
2983 DO_UNLOCK(flags);
2984
2985 printk(KERN_DEBUG "current_SC:\n");
2986 if (CURRENT_SC)
2987 show_command(CURRENT_SC);
2988 else
2989 printk(KERN_DEBUG "none\n");
2990
2991 printk(KERN_DEBUG "disconnected_SC:\n");
2992 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
2993 show_command(ptr);
2994
2995 disp_ports(shpnt);
2996 disp_enintr(shpnt);
2997 }
2998
2999 #undef SPRINTF
3000 #define SPRINTF(args...) pos += sprintf(pos, ## args)
3001
3002 static int get_command(char *pos, Scsi_Cmnd * ptr)
3003 {
3004 char *start = pos;
3005 int i;
3006
3007 SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ",
3008 (unsigned int) ptr, ptr->device->id, ptr->device->lun);
3009
3010 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
3011 SPRINTF("0x%02x ", ptr->cmnd[i]);
3012
3013 SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
3014 ptr->resid, ptr->SCp.this_residual, ptr->SCp.buffers_residual);
3015
3016 if (ptr->SCp.phase & not_issued)
3017 SPRINTF("not issued|");
3018 if (ptr->SCp.phase & selecting)
3019 SPRINTF("selecting|");
3020 if (ptr->SCp.phase & disconnected)
3021 SPRINTF("disconnected|");
3022 if (ptr->SCp.phase & aborted)
3023 SPRINTF("aborted|");
3024 if (ptr->SCp.phase & identified)
3025 SPRINTF("identified|");
3026 if (ptr->SCp.phase & completed)
3027 SPRINTF("completed|");
3028 if (ptr->SCp.phase & spiordy)
3029 SPRINTF("spiordy|");
3030 if (ptr->SCp.phase & syncneg)
3031 SPRINTF("syncneg|");
3032 SPRINTF("; next=0x%p\n", SCNEXT(ptr));
3033
3034 return (pos - start);
3035 }
3036
3037 static int get_ports(struct Scsi_Host *shpnt, char *pos)
3038 {
3039 char *start = pos;
3040 int s;
3041
3042 SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
3043
3044 s = GETPORT(SCSISEQ);
3045 SPRINTF("SCSISEQ( ");
3046 if (s & TEMODEO)
3047 SPRINTF("TARGET MODE ");
3048 if (s & ENSELO)
3049 SPRINTF("SELO ");
3050 if (s & ENSELI)
3051 SPRINTF("SELI ");
3052 if (s & ENRESELI)
3053 SPRINTF("RESELI ");
3054 if (s & ENAUTOATNO)
3055 SPRINTF("AUTOATNO ");
3056 if (s & ENAUTOATNI)
3057 SPRINTF("AUTOATNI ");
3058 if (s & ENAUTOATNP)
3059 SPRINTF("AUTOATNP ");
3060 if (s & SCSIRSTO)
3061 SPRINTF("SCSIRSTO ");
3062 SPRINTF(");");
3063
3064 SPRINTF(" SCSISIG(");
3065 s = GETPORT(SCSISIG);
3066 switch (s & P_MASK) {
3067 case P_DATAO:
3068 SPRINTF("DATA OUT");
3069 break;
3070 case P_DATAI:
3071 SPRINTF("DATA IN");
3072 break;
3073 case P_CMD:
3074 SPRINTF("COMMAND");
3075 break;
3076 case P_STATUS:
3077 SPRINTF("STATUS");
3078 break;
3079 case P_MSGO:
3080 SPRINTF("MESSAGE OUT");
3081 break;
3082 case P_MSGI:
3083 SPRINTF("MESSAGE IN");
3084 break;
3085 default:
3086 SPRINTF("*invalid*");
3087 break;
3088 }
3089
3090 SPRINTF("); ");
3091
3092 SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
3093
3094 SPRINTF("SSTAT( ");
3095 s = GETPORT(SSTAT0);
3096 if (s & TARGET)
3097 SPRINTF("TARGET ");
3098 if (s & SELDO)
3099 SPRINTF("SELDO ");
3100 if (s & SELDI)
3101 SPRINTF("SELDI ");
3102 if (s & SELINGO)
3103 SPRINTF("SELINGO ");
3104 if (s & SWRAP)
3105 SPRINTF("SWRAP ");
3106 if (s & SDONE)
3107 SPRINTF("SDONE ");
3108 if (s & SPIORDY)
3109 SPRINTF("SPIORDY ");
3110 if (s & DMADONE)
3111 SPRINTF("DMADONE ");
3112
3113 s = GETPORT(SSTAT1);
3114 if (s & SELTO)
3115 SPRINTF("SELTO ");
3116 if (s & ATNTARG)
3117 SPRINTF("ATNTARG ");
3118 if (s & SCSIRSTI)
3119 SPRINTF("SCSIRSTI ");
3120 if (s & PHASEMIS)
3121 SPRINTF("PHASEMIS ");
3122 if (s & BUSFREE)
3123 SPRINTF("BUSFREE ");
3124 if (s & SCSIPERR)
3125 SPRINTF("SCSIPERR ");
3126 if (s & PHASECHG)
3127 SPRINTF("PHASECHG ");
3128 if (s & REQINIT)
3129 SPRINTF("REQINIT ");
3130 SPRINTF("); ");
3131
3132
3133 SPRINTF("SSTAT( ");
3134
3135 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
3136
3137 if (s & TARGET)
3138 SPRINTF("TARGET ");
3139 if (s & SELDO)
3140 SPRINTF("SELDO ");
3141 if (s & SELDI)
3142 SPRINTF("SELDI ");
3143 if (s & SELINGO)
3144 SPRINTF("SELINGO ");
3145 if (s & SWRAP)
3146 SPRINTF("SWRAP ");
3147 if (s & SDONE)
3148 SPRINTF("SDONE ");
3149 if (s & SPIORDY)
3150 SPRINTF("SPIORDY ");
3151 if (s & DMADONE)
3152 SPRINTF("DMADONE ");
3153
3154 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
3155
3156 if (s & SELTO)
3157 SPRINTF("SELTO ");
3158 if (s & ATNTARG)
3159 SPRINTF("ATNTARG ");
3160 if (s & SCSIRSTI)
3161 SPRINTF("SCSIRSTI ");
3162 if (s & PHASEMIS)
3163 SPRINTF("PHASEMIS ");
3164 if (s & BUSFREE)
3165 SPRINTF("BUSFREE ");
3166 if (s & SCSIPERR)
3167 SPRINTF("SCSIPERR ");
3168 if (s & PHASECHG)
3169 SPRINTF("PHASECHG ");
3170 if (s & REQINIT)
3171 SPRINTF("REQINIT ");
3172 SPRINTF("); ");
3173
3174 SPRINTF("SXFRCTL0( ");
3175
3176 s = GETPORT(SXFRCTL0);
3177 if (s & SCSIEN)
3178 SPRINTF("SCSIEN ");
3179 if (s & DMAEN)
3180 SPRINTF("DMAEN ");
3181 if (s & CH1)
3182 SPRINTF("CH1 ");
3183 if (s & CLRSTCNT)
3184 SPRINTF("CLRSTCNT ");
3185 if (s & SPIOEN)
3186 SPRINTF("SPIOEN ");
3187 if (s & CLRCH1)
3188 SPRINTF("CLRCH1 ");
3189 SPRINTF("); ");
3190
3191 SPRINTF("SIGNAL( ");
3192
3193 s = GETPORT(SCSISIG);
3194 if (s & SIG_ATNI)
3195 SPRINTF("ATNI ");
3196 if (s & SIG_SELI)
3197 SPRINTF("SELI ");
3198 if (s & SIG_BSYI)
3199 SPRINTF("BSYI ");
3200 if (s & SIG_REQI)
3201 SPRINTF("REQI ");
3202 if (s & SIG_ACKI)
3203 SPRINTF("ACKI ");
3204 SPRINTF("); ");
3205
3206 SPRINTF("SELID(%02x), ", GETPORT(SELID));
3207
3208 SPRINTF("STCNT(%d), ", GETSTCNT());
3209
3210 SPRINTF("SSTAT2( ");
3211
3212 s = GETPORT(SSTAT2);
3213 if (s & SOFFSET)
3214 SPRINTF("SOFFSET ");
3215 if (s & SEMPTY)
3216 SPRINTF("SEMPTY ");
3217 if (s & SFULL)
3218 SPRINTF("SFULL ");
3219 SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT));
3220
3221 s = GETPORT(SSTAT3);
3222 SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
3223
3224 SPRINTF("SSTAT4( ");
3225 s = GETPORT(SSTAT4);
3226 if (s & SYNCERR)
3227 SPRINTF("SYNCERR ");
3228 if (s & FWERR)
3229 SPRINTF("FWERR ");
3230 if (s & FRERR)
3231 SPRINTF("FRERR ");
3232 SPRINTF("); ");
3233
3234 SPRINTF("DMACNTRL0( ");
3235 s = GETPORT(DMACNTRL0);
3236 SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT");
3237 SPRINTF("%s ", s & DMA ? "DMA" : "PIO");
3238 SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ");
3239 if (s & ENDMA)
3240 SPRINTF("ENDMA ");
3241 if (s & INTEN)
3242 SPRINTF("INTEN ");
3243 if (s & RSTFIFO)
3244 SPRINTF("RSTFIFO ");
3245 if (s & SWINT)
3246 SPRINTF("SWINT ");
3247 SPRINTF("); ");
3248
3249 SPRINTF("DMASTAT( ");
3250 s = GETPORT(DMASTAT);
3251 if (s & ATDONE)
3252 SPRINTF("ATDONE ");
3253 if (s & WORDRDY)
3254 SPRINTF("WORDRDY ");
3255 if (s & DFIFOFULL)
3256 SPRINTF("DFIFOFULL ");
3257 if (s & DFIFOEMP)
3258 SPRINTF("DFIFOEMP ");
3259 SPRINTF(")\n");
3260
3261 SPRINTF("enabled interrupts( ");
3262
3263 s = GETPORT(SIMODE0);
3264 if (s & ENSELDO)
3265 SPRINTF("ENSELDO ");
3266 if (s & ENSELDI)
3267 SPRINTF("ENSELDI ");
3268 if (s & ENSELINGO)
3269 SPRINTF("ENSELINGO ");
3270 if (s & ENSWRAP)
3271 SPRINTF("ENSWRAP ");
3272 if (s & ENSDONE)
3273 SPRINTF("ENSDONE ");
3274 if (s & ENSPIORDY)
3275 SPRINTF("ENSPIORDY ");
3276 if (s & ENDMADONE)
3277 SPRINTF("ENDMADONE ");
3278
3279 s = GETPORT(SIMODE1);
3280 if (s & ENSELTIMO)
3281 SPRINTF("ENSELTIMO ");
3282 if (s & ENATNTARG)
3283 SPRINTF("ENATNTARG ");
3284 if (s & ENPHASEMIS)
3285 SPRINTF("ENPHASEMIS ");
3286 if (s & ENBUSFREE)
3287 SPRINTF("ENBUSFREE ");
3288 if (s & ENSCSIPERR)
3289 SPRINTF("ENSCSIPERR ");
3290 if (s & ENPHASECHG)
3291 SPRINTF("ENPHASECHG ");
3292 if (s & ENREQINIT)
3293 SPRINTF("ENREQINIT ");
3294 SPRINTF(")\n");
3295
3296 return (pos - start);
3297 }
3298
3299 static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
3300 {
3301 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
3302 return -EINVAL;
3303
3304 #if defined(AHA152X_DEBUG)
3305 if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
3306 int debug = HOSTDATA(shpnt)->debug;
3307
3308 HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
3309
3310 printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
3311 } else
3312 #endif
3313 #if defined(AHA152X_STAT)
3314 if(length>13 && strncmp("reset", buffer+8, 5)==0) {
3315 int i;
3316
3317 HOSTDATA(shpnt)->total_commands=0;
3318 HOSTDATA(shpnt)->disconnections=0;
3319 HOSTDATA(shpnt)->busfree_without_any_action=0;
3320 HOSTDATA(shpnt)->busfree_without_old_command=0;
3321 HOSTDATA(shpnt)->busfree_without_new_command=0;
3322 HOSTDATA(shpnt)->busfree_without_done_command=0;
3323 HOSTDATA(shpnt)->busfree_with_check_condition=0;
3324 for (i = idle; i<maxstate; i++) {
3325 HOSTDATA(shpnt)->count[i]=0;
3326 HOSTDATA(shpnt)->count_trans[i]=0;
3327 HOSTDATA(shpnt)->time[i]=0;
3328 }
3329
3330 printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
3331
3332 } else
3333 #endif
3334 {
3335 return -EINVAL;
3336 }
3337
3338
3339 return length;
3340 }
3341
3342 #undef SPRINTF
3343 #define SPRINTF(args...) \
3344 do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
3345
3346 static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
3347 off_t offset, int length, int inout)
3348 {
3349 int i;
3350 char *pos = buffer;
3351 Scsi_Cmnd *ptr;
3352 unsigned long flags;
3353 int thislength;
3354
3355 DPRINTK(debug_procinfo,
3356 KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n",
3357 buffer, offset, length, shpnt->host_no, inout);
3358
3359
3360 if (inout)
3361 return aha152x_set_info(buffer, length, shpnt);
3362
3363 SPRINTF(AHA152X_REVID "\n");
3364
3365 SPRINTF("ioports 0x%04lx to 0x%04lx\n",
3366 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
3367 SPRINTF("interrupt 0x%02x\n", shpnt->irq);
3368 SPRINTF("disconnection/reconnection %s\n",
3369 RECONNECT ? "enabled" : "disabled");
3370 SPRINTF("parity checking %s\n",
3371 PARITY ? "enabled" : "disabled");
3372 SPRINTF("synchronous transfers %s\n",
3373 SYNCHRONOUS ? "enabled" : "disabled");
3374 SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
3375
3376 if(SYNCHRONOUS) {
3377 SPRINTF("synchronously operating targets (tick=50 ns):\n");
3378 for (i = 0; i < 8; i++)
3379 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f)
3380 SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n",
3381 i,
3382 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2),
3383 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
3384 HOSTDATA(shpnt)->syncrate[i] & 0x0f);
3385 }
3386 #if defined(AHA152X_DEBUG)
3387 #define PDEBUG(flags,txt) \
3388 if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
3389
3390 SPRINTF("enabled debugging options: ");
3391
3392 PDEBUG(debug_procinfo, "procinfo");
3393 PDEBUG(debug_queue, "queue");
3394 PDEBUG(debug_intr, "interrupt");
3395 PDEBUG(debug_selection, "selection");
3396 PDEBUG(debug_msgo, "message out");
3397 PDEBUG(debug_msgi, "message in");
3398 PDEBUG(debug_status, "status");
3399 PDEBUG(debug_cmd, "command");
3400 PDEBUG(debug_datai, "data in");
3401 PDEBUG(debug_datao, "data out");
3402 PDEBUG(debug_eh, "eh");
3403 PDEBUG(debug_locks, "locks");
3404 PDEBUG(debug_phases, "phases");
3405
3406 SPRINTF("\n");
3407 #endif
3408
3409 SPRINTF("\nqueue status:\n");
3410 DO_LOCK(flags);
3411 if (ISSUE_SC) {
3412 SPRINTF("not yet issued commands:\n");
3413 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
3414 pos += get_command(pos, ptr);
3415 } else
3416 SPRINTF("no not yet issued commands\n");
3417 DO_UNLOCK(flags);
3418
3419 if (CURRENT_SC) {
3420 SPRINTF("current command:\n");
3421 pos += get_command(pos, CURRENT_SC);
3422 } else
3423 SPRINTF("no current command\n");
3424
3425 if (DISCONNECTED_SC) {
3426 SPRINTF("disconnected commands:\n");
3427 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
3428 pos += get_command(pos, ptr);
3429 } else
3430 SPRINTF("no disconnected commands\n");
3431
3432 pos += get_ports(shpnt, pos);
3433
3434 #if defined(AHA152X_STAT)
3435 SPRINTF("statistics:\n"
3436 "total commands: %d\n"
3437 "disconnections: %d\n"
3438 "busfree with check condition: %d\n"
3439 "busfree without old command: %d\n"
3440 "busfree without new command: %d\n"
3441 "busfree without done command: %d\n"
3442 "busfree without any action: %d\n"
3443 "state "
3444 "transitions "
3445 "count "
3446 "time\n",
3447 HOSTDATA(shpnt)->total_commands,
3448 HOSTDATA(shpnt)->disconnections,
3449 HOSTDATA(shpnt)->busfree_with_check_condition,
3450 HOSTDATA(shpnt)->busfree_without_old_command,
3451 HOSTDATA(shpnt)->busfree_without_new_command,
3452 HOSTDATA(shpnt)->busfree_without_done_command,
3453 HOSTDATA(shpnt)->busfree_without_any_action);
3454 for(i=0; i<maxstate; i++) {
3455 SPRINTF("%-10s %-12d %-12d %-12ld\n",
3456 states[i].name,
3457 HOSTDATA(shpnt)->count_trans[i],
3458 HOSTDATA(shpnt)->count[i],
3459 HOSTDATA(shpnt)->time[i]);
3460 }
3461 #endif
3462
3463 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos);
3464
3465 thislength = pos - (buffer + offset);
3466 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength);
3467
3468 if(thislength<0) {
3469 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n");
3470 *start = NULL;
3471 return 0;
3472 }
3473
3474 thislength = thislength<length ? thislength : length;
3475
3476 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength);
3477
3478 *start = buffer + offset;
3479 return thislength < length ? thislength : length;
3480 }
3481
3482 static struct scsi_host_template aha152x_driver_template = {
3483 .module = THIS_MODULE,
3484 .name = AHA152X_REVID,
3485 .proc_name = "aha152x",
3486 .proc_info = aha152x_proc_info,
3487 .queuecommand = aha152x_queue,
3488 .eh_abort_handler = aha152x_abort,
3489 .eh_device_reset_handler = aha152x_device_reset,
3490 .eh_bus_reset_handler = aha152x_bus_reset,
3491 .eh_host_reset_handler = aha152x_host_reset,
3492 .bios_param = aha152x_biosparam,
3493 .can_queue = 1,
3494 .this_id = 7,
3495 .sg_tablesize = SG_ALL,
3496 .cmd_per_lun = 1,
3497 .use_clustering = DISABLE_CLUSTERING,
3498 };
3499
3500 #if !defined(PCMCIA)
3501 static int setup_count;
3502 static struct aha152x_setup setup[2];
3503
3504 /* possible i/o addresses for the AIC-6260; default first */
3505 static unsigned short ports[] = { 0x340, 0x140 };
3506
3507 #if !defined(SKIP_BIOSTEST)
3508 /* possible locations for the Adaptec BIOS; defaults first */
3509 static unsigned int addresses[] =
3510 {
3511 0xdc000, /* default first */
3512 0xc8000,
3513 0xcc000,
3514 0xd0000,
3515 0xd4000,
3516 0xd8000,
3517 0xe0000,
3518 0xeb800, /* VTech Platinum SMP */
3519 0xf0000,
3520 };
3521
3522 /* signatures for various AIC-6[23]60 based controllers.
3523 The point in detecting signatures is to avoid useless and maybe
3524 harmful probes on ports. I'm not sure that all listed boards pass
3525 auto-configuration. For those which fail the BIOS signature is
3526 obsolete, because user intervention to supply the configuration is
3527 needed anyway. May be an information whether or not the BIOS supports
3528 extended translation could be also useful here. */
3529 static struct signature {
3530 unsigned char *signature;
3531 int sig_offset;
3532 int sig_length;
3533 } signatures[] =
3534 {
3535 { "Adaptec AHA-1520 BIOS", 0x102e, 21 },
3536 /* Adaptec 152x */
3537 { "Adaptec AHA-1520B", 0x000b, 17 },
3538 /* Adaptec 152x rev B */
3539 { "Adaptec AHA-1520B", 0x0026, 17 },
3540 /* Iomega Jaz Jet ISA (AIC6370Q) */
3541 { "Adaptec ASW-B626 BIOS", 0x1029, 21 },
3542 /* on-board controller */
3543 { "Adaptec BIOS: ASW-B626", 0x000f, 22 },
3544 /* on-board controller */
3545 { "Adaptec ASW-B626 S2", 0x2e6c, 19 },
3546 /* on-board controller */
3547 { "Adaptec BIOS:AIC-6360", 0x000c, 21 },
3548 /* on-board controller */
3549 { "ScsiPro SP-360 BIOS", 0x2873, 19 },
3550 /* ScsiPro-Controller */
3551 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 },
3552 /* Gigabyte Local-Bus-SCSI */
3553 { "Adaptec BIOS:AVA-282X", 0x000c, 21 },
3554 /* Adaptec 282x */
3555 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
3556 /* IBM Thinkpad Dock II */
3557 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
3558 /* IBM Thinkpad Dock II SCSI */
3559 { "DTC3520A Host Adapter BIOS", 0x318a, 26 },
3560 /* DTC 3520A ISA SCSI */
3561 };
3562 #endif /* !SKIP_BIOSTEST */
3563
3564 /*
3565 * Test, if port_base is valid.
3566 *
3567 */
3568 static int aha152x_porttest(int io_port)
3569 {
3570 int i;
3571
3572 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
3573 for (i = 0; i < 16; i++)
3574 SETPORT(io_port + O_STACK, i);
3575
3576 SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */
3577 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++)
3578 ;
3579
3580 return (i == 16);
3581 }
3582
3583 static int tc1550_porttest(int io_port)
3584 {
3585 int i;
3586
3587 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
3588 for (i = 0; i < 16; i++)
3589 SETPORT(io_port + O_STACK, i);
3590
3591 SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
3592 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
3593 ;
3594
3595 return (i == 16);
3596 }
3597
3598
3599 static int checksetup(struct aha152x_setup *setup)
3600 {
3601 int i;
3602 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
3603 ;
3604
3605 if (i == ARRAY_SIZE(ports))
3606 return 0;
3607
3608 if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) {
3609 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
3610 return 0;
3611 }
3612
3613 if( aha152x_porttest(setup->io_port) ) {
3614 setup->tc1550=0;
3615 } else if( tc1550_porttest(setup->io_port) ) {
3616 setup->tc1550=1;
3617 } else {
3618 release_region(setup->io_port, IO_RANGE);
3619 return 0;
3620 }
3621
3622 release_region(setup->io_port, IO_RANGE);
3623
3624 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX))
3625 return 0;
3626
3627 if ((setup->scsiid < 0) || (setup->scsiid > 7))
3628 return 0;
3629
3630 if ((setup->reconnect < 0) || (setup->reconnect > 1))
3631 return 0;
3632
3633 if ((setup->parity < 0) || (setup->parity > 1))
3634 return 0;
3635
3636 if ((setup->synchronous < 0) || (setup->synchronous > 1))
3637 return 0;
3638
3639 if ((setup->ext_trans < 0) || (setup->ext_trans > 1))
3640 return 0;
3641
3642
3643 return 1;
3644 }
3645
3646
3647 static int __init aha152x_init(void)
3648 {
3649 int i, j, ok;
3650 #if defined(AUTOCONF)
3651 aha152x_config conf;
3652 #endif
3653 #ifdef __ISAPNP__
3654 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
3655 #endif
3656
3657 if ( setup_count ) {
3658 printk(KERN_INFO "aha152x: processing commandline: ");
3659
3660 for (i = 0; i<setup_count; i++) {
3661 if (!checksetup(&setup[i])) {
3662 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
3663 printk(KERN_ERR "aha152x: invalid line\n");
3664 }
3665 }
3666 printk("ok\n");
3667 }
3668
3669 #if defined(SETUP0)
3670 if (setup_count < ARRAY_SIZE(setup)) {
3671 struct aha152x_setup override = SETUP0;
3672
3673 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3674 if (!checksetup(&override)) {
3675 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3676 override.io_port,
3677 override.irq,
3678 override.scsiid,
3679 override.reconnect,
3680 override.parity,
3681 override.synchronous,
3682 override.delay,
3683 override.ext_trans);
3684 } else
3685 setup[setup_count++] = override;
3686 }
3687 }
3688 #endif
3689
3690 #if defined(SETUP1)
3691 if (setup_count < ARRAY_SIZE(setup)) {
3692 struct aha152x_setup override = SETUP1;
3693
3694 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3695 if (!checksetup(&override)) {
3696 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3697 override.io_port,
3698 override.irq,
3699 override.scsiid,
3700 override.reconnect,
3701 override.parity,
3702 override.synchronous,
3703 override.delay,
3704 override.ext_trans);
3705 } else
3706 setup[setup_count++] = override;
3707 }
3708 }
3709 #endif
3710
3711 #if defined(MODULE)
3712 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
3713 if(aha152x[0]!=0) {
3714 setup[setup_count].conf = "";
3715 setup[setup_count].io_port = aha152x[0];
3716 setup[setup_count].irq = aha152x[1];
3717 setup[setup_count].scsiid = aha152x[2];
3718 setup[setup_count].reconnect = aha152x[3];
3719 setup[setup_count].parity = aha152x[4];
3720 setup[setup_count].synchronous = aha152x[5];
3721 setup[setup_count].delay = aha152x[6];
3722 setup[setup_count].ext_trans = aha152x[7];
3723 #if defined(AHA152X_DEBUG)
3724 setup[setup_count].debug = aha152x[8];
3725 #endif
3726 } else if(io[0]!=0 || irq[0]!=0) {
3727 if(io[0]!=0) setup[setup_count].io_port = io[0];
3728 if(irq[0]!=0) setup[setup_count].irq = irq[0];
3729
3730 setup[setup_count].scsiid = scsiid[0];
3731 setup[setup_count].reconnect = reconnect[0];
3732 setup[setup_count].parity = parity[0];
3733 setup[setup_count].synchronous = sync[0];
3734 setup[setup_count].delay = delay[0];
3735 setup[setup_count].ext_trans = exttrans[0];
3736 #if defined(AHA152X_DEBUG)
3737 setup[setup_count].debug = debug[0];
3738 #endif
3739 }
3740
3741 if (checksetup(&setup[setup_count]))
3742 setup_count++;
3743 else
3744 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",
3745 setup[setup_count].io_port,
3746 setup[setup_count].irq,
3747 setup[setup_count].scsiid,
3748 setup[setup_count].reconnect,
3749 setup[setup_count].parity,
3750 setup[setup_count].synchronous,
3751 setup[setup_count].delay,
3752 setup[setup_count].ext_trans);
3753 }
3754
3755 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
3756 if(aha152x1[0]!=0) {
3757 setup[setup_count].conf = "";
3758 setup[setup_count].io_port = aha152x1[0];
3759 setup[setup_count].irq = aha152x1[1];
3760 setup[setup_count].scsiid = aha152x1[2];
3761 setup[setup_count].reconnect = aha152x1[3];
3762 setup[setup_count].parity = aha152x1[4];
3763 setup[setup_count].synchronous = aha152x1[5];
3764 setup[setup_count].delay = aha152x1[6];
3765 setup[setup_count].ext_trans = aha152x1[7];
3766 #if defined(AHA152X_DEBUG)
3767 setup[setup_count].debug = aha152x1[8];
3768 #endif
3769 } else if(io[1]!=0 || irq[1]!=0) {
3770 if(io[1]!=0) setup[setup_count].io_port = io[1];
3771 if(irq[1]!=0) setup[setup_count].irq = irq[1];
3772
3773 setup[setup_count].scsiid = scsiid[1];
3774 setup[setup_count].reconnect = reconnect[1];
3775 setup[setup_count].parity = parity[1];
3776 setup[setup_count].synchronous = sync[1];
3777 setup[setup_count].delay = delay[1];
3778 setup[setup_count].ext_trans = exttrans[1];
3779 #if defined(AHA152X_DEBUG)
3780 setup[setup_count].debug = debug[1];
3781 #endif
3782 }
3783 if (checksetup(&setup[setup_count]))
3784 setup_count++;
3785 else
3786 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",
3787 setup[setup_count].io_port,
3788 setup[setup_count].irq,
3789 setup[setup_count].scsiid,
3790 setup[setup_count].reconnect,
3791 setup[setup_count].parity,
3792 setup[setup_count].synchronous,
3793 setup[setup_count].delay,
3794 setup[setup_count].ext_trans);
3795 }
3796 #endif
3797
3798 #ifdef __ISAPNP__
3799 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
3800 while ( setup_count<ARRAY_SIZE(setup) &&
3801 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
3802 if (pnp_device_attach(dev) < 0)
3803 continue;
3804
3805 if (pnp_activate_dev(dev) < 0) {
3806 pnp_device_detach(dev);
3807 continue;
3808 }
3809
3810 if (!pnp_port_valid(dev, 0)) {
3811 pnp_device_detach(dev);
3812 continue;
3813 }
3814
3815 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
3816 pnp_device_detach(dev);
3817 continue;
3818 }
3819
3820 setup[setup_count].io_port = pnp_port_start(dev, 0);
3821 setup[setup_count].irq = pnp_irq(dev, 0);
3822 setup[setup_count].scsiid = 7;
3823 setup[setup_count].reconnect = 1;
3824 setup[setup_count].parity = 1;
3825 setup[setup_count].synchronous = 1;
3826 setup[setup_count].delay = DELAY_DEFAULT;
3827 setup[setup_count].ext_trans = 0;
3828 #if defined(AHA152X_DEBUG)
3829 setup[setup_count].debug = DEBUG_DEFAULT;
3830 #endif
3831 #if defined(__ISAPNP__)
3832 pnpdev[setup_count] = dev;
3833 #endif
3834 printk (KERN_INFO
3835 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
3836 setup[setup_count].io_port, setup[setup_count].irq);
3837 setup_count++;
3838 }
3839 }
3840 #endif
3841
3842 #if defined(AUTOCONF)
3843 if (setup_count<ARRAY_SIZE(setup)) {
3844 #if !defined(SKIP_BIOSTEST)
3845 ok = 0;
3846 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
3847 void __iomem *p = ioremap(addresses[i], 0x4000);
3848 if (!p)
3849 continue;
3850 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
3851 ok = check_signature(p + signatures[j].sig_offset,
3852 signatures[j].signature, signatures[j].sig_length);
3853 iounmap(p);
3854 }
3855 if (!ok && setup_count == 0)
3856 return 0;
3857
3858 printk(KERN_INFO "aha152x: BIOS test: passed, ");
3859 #else
3860 printk(KERN_INFO "aha152x: ");
3861 #endif /* !SKIP_BIOSTEST */
3862
3863 ok = 0;
3864 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
3865 if ((setup_count == 1) && (setup[0].io_port == ports[i]))
3866 continue;
3867
3868 if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) {
3869 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
3870 continue;
3871 }
3872
3873 if (aha152x_porttest(ports[i])) {
3874 setup[setup_count].tc1550 = 0;
3875
3876 conf.cf_port =
3877 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
3878 } else if (tc1550_porttest(ports[i])) {
3879 setup[setup_count].tc1550 = 1;
3880
3881 conf.cf_port =
3882 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
3883 } else {
3884 release_region(ports[i], IO_RANGE);
3885 continue;
3886 }
3887
3888 release_region(ports[i], IO_RANGE);
3889
3890 ok++;
3891 setup[setup_count].io_port = ports[i];
3892 setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
3893 setup[setup_count].scsiid = conf.cf_id;
3894 setup[setup_count].reconnect = conf.cf_tardisc;
3895 setup[setup_count].parity = !conf.cf_parity;
3896 setup[setup_count].synchronous = conf.cf_syncneg;
3897 setup[setup_count].delay = DELAY_DEFAULT;
3898 setup[setup_count].ext_trans = 0;
3899 #if defined(AHA152X_DEBUG)
3900 setup[setup_count].debug = DEBUG_DEFAULT;
3901 #endif
3902 setup_count++;
3903
3904 }
3905
3906 if (ok)
3907 printk("auto configuration: ok, ");
3908 }
3909 #endif
3910
3911 printk("%d controller(s) configured\n", setup_count);
3912
3913 for (i=0; i<setup_count; i++) {
3914 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
3915 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
3916
3917 if( !shpnt ) {
3918 release_region(setup[i].io_port, IO_RANGE);
3919 #if defined(__ISAPNP__)
3920 } else if( pnpdev[i] ) {
3921 HOSTDATA(shpnt)->pnpdev=pnpdev[i];
3922 pnpdev[i]=NULL;
3923 #endif
3924 }
3925 } else {
3926 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
3927 }
3928
3929 #if defined(__ISAPNP__)
3930 if( pnpdev[i] )
3931 pnp_device_detach(pnpdev[i]);
3932 #endif
3933 }
3934
3935 return registered_count>0;
3936 }
3937
3938 static void __exit aha152x_exit(void)
3939 {
3940 int i;
3941
3942 for(i=0; i<ARRAY_SIZE(setup); i++) {
3943 aha152x_release(aha152x_host[i]);
3944 aha152x_host[i]=NULL;
3945 }
3946 }
3947
3948 module_init(aha152x_init);
3949 module_exit(aha152x_exit);
3950
3951 #if !defined(MODULE)
3952 static int __init aha152x_setup(char *str)
3953 {
3954 #if defined(AHA152X_DEBUG)
3955 int ints[11];
3956 #else
3957 int ints[10];
3958 #endif
3959 get_options(str, ARRAY_SIZE(ints), ints);
3960
3961 if(setup_count>=ARRAY_SIZE(setup)) {
3962 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
3963 return 1;
3964 }
3965
3966 setup[setup_count].conf = str;
3967 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
3968 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
3969 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
3970 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
3971 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
3972 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
3973 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
3974 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
3975 #if defined(AHA152X_DEBUG)
3976 setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
3977 if (ints[0] > 9) {
3978 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3979 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
3980 #else
3981 if (ints[0] > 8) { /*}*/
3982 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3983 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
3984 #endif
3985 } else {
3986 setup_count++;
3987 return 0;
3988 }
3989
3990 return 1;
3991 }
3992 __setup("aha152x=", aha152x_setup);
3993 #endif
3994
3995 #endif /* !PCMCIA */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree