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1 | /* aha152x.c -- Adaptec AHA-152x driver | |
2 | * Author: Jürgen E. Fischer, fischer@norbit.de | |
3 | * Copyright 1993-2004 Jürgen E. Fischer | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by the | |
7 | * Free Software Foundation; either version 2, or (at your option) any | |
8 | * later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * | |
16 | * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $ | |
17 | * | |
18 | * $Log: aha152x.c,v $ | |
19 | * Revision 2.7 2004/01/24 11:42:59 fischer | |
20 | * - gather code that is not used by PCMCIA at the end | |
21 | * - move request_region for !PCMCIA case to detection | |
22 | * - migration to new scsi host api (remove legacy code) | |
23 | * - free host scribble before scsi_done | |
24 | * - fix error handling | |
25 | * - one isapnp device added to id_table | |
26 | * | |
27 | * Revision 2.6 2003/10/30 20:52:47 fischer | |
28 | * - interfaces changes for kernel 2.6 | |
29 | * - aha152x_probe_one introduced for pcmcia stub | |
30 | * - fixed pnpdev handling | |
31 | * - instead of allocation a new one, reuse command for request sense after check condition and reset | |
32 | * - fixes race in is_complete | |
33 | * | |
34 | * Revision 2.5 2002/04/14 11:24:53 fischer | |
35 | * - isapnp support | |
36 | * - abort fixed | |
37 | * - 2.5 support | |
38 | * | |
39 | * Revision 2.4 2000/12/16 12:53:56 fischer | |
40 | * - allow REQUEST SENSE to be queued | |
41 | * - handle shared PCI interrupts | |
42 | * | |
43 | * Revision 2.3 2000/11/04 16:40:26 fischer | |
44 | * - handle data overruns | |
45 | * - extend timeout for data phases | |
46 | * | |
47 | * Revision 2.2 2000/08/08 19:54:53 fischer | |
48 | * - minor changes | |
49 | * | |
50 | * Revision 2.1 2000/05/17 16:23:17 fischer | |
51 | * - signature update | |
52 | * - fix for data out w/o scatter gather | |
53 | * | |
54 | * Revision 2.0 1999/12/25 15:07:32 fischer | |
55 | * - interrupt routine completly reworked | |
56 | * - basic support for new eh code | |
57 | * | |
58 | * Revision 1.21 1999/11/10 23:46:36 fischer | |
59 | * - default to synchronous operation | |
60 | * - synchronous negotiation fixed | |
61 | * - added timeout to loops | |
62 | * - debugging output can be controlled through procfs | |
63 | * | |
64 | * Revision 1.20 1999/11/07 18:37:31 fischer | |
65 | * - synchronous operation works | |
66 | * - resid support for sg driver | |
67 | * | |
68 | * Revision 1.19 1999/11/02 22:39:59 fischer | |
69 | * - moved leading comments to README.aha152x | |
70 | * - new additional module parameters | |
71 | * - updates for 2.3 | |
72 | * - support for the Tripace TC1550 controller | |
73 | * - interrupt handling changed | |
74 | * | |
75 | * Revision 1.18 1996/09/07 20:10:40 fischer | |
76 | * - fixed can_queue handling (multiple outstanding commands working again) | |
77 | * | |
78 | * Revision 1.17 1996/08/17 16:05:14 fischer | |
79 | * - biosparam improved | |
80 | * - interrupt verification | |
81 | * - updated documentation | |
82 | * - cleanups | |
83 | * | |
84 | * Revision 1.16 1996/06/09 00:04:56 root | |
85 | * - added configuration symbols for insmod (aha152x/aha152x1) | |
86 | * | |
87 | * Revision 1.15 1996/04/30 14:52:06 fischer | |
88 | * - proc info fixed | |
89 | * - support for extended translation for >1GB disks | |
90 | * | |
91 | * Revision 1.14 1996/01/17 15:11:20 fischer | |
92 | * - fixed lockup in MESSAGE IN phase after reconnection | |
93 | * | |
94 | * Revision 1.13 1996/01/09 02:15:53 fischer | |
95 | * - some cleanups | |
96 | * - moved request_irq behind controller initialization | |
97 | * (to avoid spurious interrupts) | |
98 | * | |
99 | * Revision 1.12 1995/12/16 12:26:07 fischer | |
100 | * - barrier()s added | |
101 | * - configurable RESET delay added | |
102 | * | |
103 | * Revision 1.11 1995/12/06 21:18:35 fischer | |
104 | * - some minor updates | |
105 | * | |
106 | * Revision 1.10 1995/07/22 19:18:45 fischer | |
107 | * - support for 2 controllers | |
108 | * - started synchronous data transfers (not working yet) | |
109 | * | |
110 | * Revision 1.9 1995/03/18 09:20:24 root | |
111 | * - patches for PCMCIA and modules | |
112 | * | |
113 | * Revision 1.8 1995/01/21 22:07:19 root | |
114 | * - snarf_region => request_region | |
115 | * - aha152x_intr interface change | |
116 | * | |
117 | * Revision 1.7 1995/01/02 23:19:36 root | |
118 | * - updated COMMAND_SIZE to cmd_len | |
119 | * - changed sti() to restore_flags() | |
120 | * - fixed some #ifdef which generated warnings | |
121 | * | |
122 | * Revision 1.6 1994/11/24 20:35:27 root | |
123 | * - problem with odd number of bytes in fifo fixed | |
124 | * | |
125 | * Revision 1.5 1994/10/30 14:39:56 root | |
126 | * - abort code fixed | |
127 | * - debugging improved | |
128 | * | |
129 | * Revision 1.4 1994/09/12 11:33:01 root | |
130 | * - irqaction to request_irq | |
131 | * - abortion updated | |
132 | * | |
133 | * Revision 1.3 1994/08/04 13:53:05 root | |
134 | * - updates for mid-level-driver changes | |
135 | * - accept unexpected BUSFREE phase as error condition | |
136 | * - parity check now configurable | |
137 | * | |
138 | * Revision 1.2 1994/07/03 12:56:36 root | |
139 | * - cleaned up debugging code | |
140 | * - more tweaking on reset delays | |
141 | * - updated abort/reset code (pretty untested...) | |
142 | * | |
143 | * Revision 1.1 1994/05/28 21:18:49 root | |
144 | * - update for mid-level interface change (abort-reset) | |
145 | * - delays after resets adjusted for some slow devices | |
146 | * | |
147 | * Revision 1.0 1994/03/25 12:52:00 root | |
148 | * - Fixed "more data than expected" problem | |
149 | * - added new BIOS signatures | |
150 | * | |
151 | * Revision 0.102 1994/01/31 20:44:12 root | |
152 | * - minor changes in insw/outsw handling | |
153 | * | |
154 | * Revision 0.101 1993/12/13 01:16:27 root | |
155 | * - fixed STATUS phase (non-GOOD stati were dropped sometimes; | |
156 | * fixes problems with CD-ROM sector size detection & media change) | |
157 | * | |
158 | * Revision 0.100 1993/12/10 16:58:47 root | |
159 | * - fix for unsuccessful selections in case of non-continuous id assignments | |
160 | * on the scsi bus. | |
161 | * | |
162 | * Revision 0.99 1993/10/24 16:19:59 root | |
163 | * - fixed DATA IN (rare read errors gone) | |
164 | * | |
165 | * Revision 0.98 1993/10/17 12:54:44 root | |
166 | * - fixed some recent fixes (shame on me) | |
167 | * - moved initialization of scratch area to aha152x_queue | |
168 | * | |
169 | * Revision 0.97 1993/10/09 18:53:53 root | |
170 | * - DATA IN fixed. Rarely left data in the fifo. | |
171 | * | |
172 | * Revision 0.96 1993/10/03 00:53:59 root | |
173 | * - minor changes on DATA IN | |
174 | * | |
175 | * Revision 0.95 1993/09/24 10:36:01 root | |
176 | * - change handling of MSGI after reselection | |
177 | * - fixed sti/cli | |
178 | * - minor changes | |
179 | * | |
180 | * Revision 0.94 1993/09/18 14:08:22 root | |
181 | * - fixed bug in multiple outstanding command code | |
182 | * - changed detection | |
183 | * - support for kernel command line configuration | |
184 | * - reset corrected | |
185 | * - changed message handling | |
186 | * | |
187 | * Revision 0.93 1993/09/15 20:41:19 root | |
188 | * - fixed bugs with multiple outstanding commands | |
189 | * | |
190 | * Revision 0.92 1993/09/13 02:46:33 root | |
191 | * - multiple outstanding commands work (no problems with IBM drive) | |
192 | * | |
193 | * Revision 0.91 1993/09/12 20:51:46 root | |
194 | * added multiple outstanding commands | |
195 | * (some problem with this $%&? IBM device remain) | |
196 | * | |
197 | * Revision 0.9 1993/09/12 11:11:22 root | |
198 | * - corrected auto-configuration | |
199 | * - changed the auto-configuration (added some '#define's) | |
200 | * - added support for dis-/reconnection | |
201 | * | |
202 | * Revision 0.8 1993/09/06 23:09:39 root | |
203 | * - added support for the drive activity light | |
204 | * - minor changes | |
205 | * | |
206 | * Revision 0.7 1993/09/05 14:30:15 root | |
207 | * - improved phase detection | |
208 | * - now using the new snarf_region code of 0.99pl13 | |
209 | * | |
210 | * Revision 0.6 1993/09/02 11:01:38 root | |
211 | * first public release; added some signatures and biosparam() | |
212 | * | |
213 | * Revision 0.5 1993/08/30 10:23:30 root | |
214 | * fixed timing problems with my IBM drive | |
215 | * | |
216 | * Revision 0.4 1993/08/29 14:06:52 root | |
217 | * fixed some problems with timeouts due incomplete commands | |
218 | * | |
219 | * Revision 0.3 1993/08/28 15:55:03 root | |
220 | * writing data works too. mounted and worked on a dos partition | |
221 | * | |
222 | * Revision 0.2 1993/08/27 22:42:07 root | |
223 | * reading data works. Mounted a msdos partition. | |
224 | * | |
225 | * Revision 0.1 1993/08/25 13:38:30 root | |
226 | * first "damn thing doesn't work" version | |
227 | * | |
228 | * Revision 0.0 1993/08/14 19:54:25 root | |
229 | * empty function bodies; detect() works. | |
230 | * | |
231 | * | |
232 | ************************************************************************** | |
233 | ||
234 | see Documentation/scsi/aha152x.txt for configuration details | |
235 | ||
236 | **************************************************************************/ | |
237 | ||
238 | #include <linux/module.h> | |
239 | #include <asm/irq.h> | |
240 | #include <linux/io.h> | |
241 | #include <linux/blkdev.h> | |
242 | #include <asm/system.h> | |
243 | #include <linux/completion.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 <linux/list.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 | static LIST_HEAD(aha152x_host_list); | |
266 | ||
267 | ||
268 | /* DEFINES */ | |
269 | ||
270 | /* For PCMCIA cards, always use AUTOCONF */ | |
271 | #if defined(PCMCIA) || defined(MODULE) | |
272 | #if !defined(AUTOCONF) | |
273 | #define AUTOCONF | |
274 | #endif | |
275 | #endif | |
276 | ||
277 | #if !defined(AUTOCONF) && !defined(SETUP0) | |
278 | #error define AUTOCONF or SETUP0 | |
279 | #endif | |
280 | ||
281 | #if defined(AHA152X_DEBUG) | |
282 | #define DEBUG_DEFAULT debug_eh | |
283 | ||
284 | #define DPRINTK(when,msgs...) \ | |
285 | do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0) | |
286 | ||
287 | #define DO_LOCK(flags) \ | |
288 | do { \ | |
289 | if(spin_is_locked(&QLOCK)) { \ | |
290 | DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \ | |
291 | } \ | |
292 | DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ | |
293 | spin_lock_irqsave(&QLOCK,flags); \ | |
294 | DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ | |
295 | QLOCKER=__FUNCTION__; \ | |
296 | QLOCKERL=__LINE__; \ | |
297 | } while(0) | |
298 | ||
299 | #define DO_UNLOCK(flags) \ | |
300 | do { \ | |
301 | DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \ | |
302 | spin_unlock_irqrestore(&QLOCK,flags); \ | |
303 | DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ | |
304 | QLOCKER="(not locked)"; \ | |
305 | QLOCKERL=0; \ | |
306 | } while(0) | |
307 | ||
308 | #else | |
309 | #define DPRINTK(when,msgs...) | |
310 | #define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags) | |
311 | #define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags) | |
312 | #endif | |
313 | ||
314 | #define LEAD "(scsi%d:%d:%d) " | |
315 | #define WARN_LEAD KERN_WARNING LEAD | |
316 | #define INFO_LEAD KERN_INFO LEAD | |
317 | #define NOTE_LEAD KERN_NOTICE LEAD | |
318 | #define ERR_LEAD KERN_ERR LEAD | |
319 | #define DEBUG_LEAD KERN_DEBUG LEAD | |
320 | #define CMDINFO(cmd) \ | |
321 | (cmd) ? ((cmd)->device->host->host_no) : -1, \ | |
322 | (cmd) ? ((cmd)->device->id & 0x0f) : -1, \ | |
323 | (cmd) ? ((cmd)->device->lun & 0x07) : -1 | |
324 | ||
325 | static inline void | |
326 | CMD_INC_RESID(struct scsi_cmnd *cmd, int inc) | |
327 | { | |
328 | scsi_set_resid(cmd, scsi_get_resid(cmd) + inc); | |
329 | } | |
330 | ||
331 | #define DELAY_DEFAULT 1000 | |
332 | ||
333 | #if defined(PCMCIA) | |
334 | #define IRQ_MIN 0 | |
335 | #define IRQ_MAX 16 | |
336 | #else | |
337 | #define IRQ_MIN 9 | |
338 | #if defined(__PPC) | |
339 | #define IRQ_MAX (NR_IRQS-1) | |
340 | #else | |
341 | #define IRQ_MAX 12 | |
342 | #endif | |
343 | #endif | |
344 | ||
345 | enum { | |
346 | not_issued = 0x0001, /* command not yet issued */ | |
347 | selecting = 0x0002, /* target is beeing selected */ | |
348 | identified = 0x0004, /* IDENTIFY was sent */ | |
349 | disconnected = 0x0008, /* target disconnected */ | |
350 | completed = 0x0010, /* target sent COMMAND COMPLETE */ | |
351 | aborted = 0x0020, /* ABORT was sent */ | |
352 | resetted = 0x0040, /* BUS DEVICE RESET was sent */ | |
353 | spiordy = 0x0080, /* waiting for SPIORDY to raise */ | |
354 | syncneg = 0x0100, /* synchronous negotiation in progress */ | |
355 | aborting = 0x0200, /* ABORT is pending */ | |
356 | resetting = 0x0400, /* BUS DEVICE RESET is pending */ | |
357 | check_condition = 0x0800, /* requesting sense after CHECK CONDITION */ | |
358 | }; | |
359 | ||
360 | MODULE_AUTHOR("Jürgen Fischer"); | |
361 | MODULE_DESCRIPTION(AHA152X_REVID); | |
362 | MODULE_LICENSE("GPL"); | |
363 | ||
364 | #if !defined(PCMCIA) | |
365 | #if defined(MODULE) | |
366 | static int io[] = {0, 0}; | |
367 | module_param_array(io, int, NULL, 0); | |
368 | MODULE_PARM_DESC(io,"base io address of controller"); | |
369 | ||
370 | static int irq[] = {0, 0}; | |
371 | module_param_array(irq, int, NULL, 0); | |
372 | MODULE_PARM_DESC(irq,"interrupt for controller"); | |
373 | ||
374 | static int scsiid[] = {7, 7}; | |
375 | module_param_array(scsiid, int, NULL, 0); | |
376 | MODULE_PARM_DESC(scsiid,"scsi id of controller"); | |
377 | ||
378 | static int reconnect[] = {1, 1}; | |
379 | module_param_array(reconnect, int, NULL, 0); | |
380 | MODULE_PARM_DESC(reconnect,"allow targets to disconnect"); | |
381 | ||
382 | static int parity[] = {1, 1}; | |
383 | module_param_array(parity, int, NULL, 0); | |
384 | MODULE_PARM_DESC(parity,"use scsi parity"); | |
385 | ||
386 | static int sync[] = {1, 1}; | |
387 | module_param_array(sync, int, NULL, 0); | |
388 | MODULE_PARM_DESC(sync,"use synchronous transfers"); | |
389 | ||
390 | static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT}; | |
391 | module_param_array(delay, int, NULL, 0); | |
392 | MODULE_PARM_DESC(delay,"scsi reset delay"); | |
393 | ||
394 | static int exttrans[] = {0, 0}; | |
395 | module_param_array(exttrans, int, NULL, 0); | |
396 | MODULE_PARM_DESC(exttrans,"use extended translation"); | |
397 | ||
398 | #if !defined(AHA152X_DEBUG) | |
399 | static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; | |
400 | module_param_array(aha152x, int, NULL, 0); | |
401 | MODULE_PARM_DESC(aha152x, "parameters for first controller"); | |
402 | ||
403 | static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; | |
404 | module_param_array(aha152x1, int, NULL, 0); | |
405 | MODULE_PARM_DESC(aha152x1, "parameters for second controller"); | |
406 | #else | |
407 | static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT}; | |
408 | module_param_array(debug, int, NULL, 0); | |
409 | MODULE_PARM_DESC(debug, "flags for driver debugging"); | |
410 | ||
411 | static int aha152x[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT}; | |
412 | module_param_array(aha152x, int, NULL, 0); | |
413 | MODULE_PARM_DESC(aha152x, "parameters for first controller"); | |
414 | ||
415 | static int aha152x1[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT}; | |
416 | module_param_array(aha152x1, int, NULL, 0); | |
417 | MODULE_PARM_DESC(aha152x1, "parameters for second controller"); | |
418 | #endif /* !defined(AHA152X_DEBUG) */ | |
419 | #endif /* MODULE */ | |
420 | ||
421 | #ifdef __ISAPNP__ | |
422 | static struct isapnp_device_id id_table[] __devinitdata = { | |
423 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
424 | ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 }, | |
425 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
426 | ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 }, | |
427 | { ISAPNP_DEVICE_SINGLE_END, } | |
428 | }; | |
429 | MODULE_DEVICE_TABLE(isapnp, id_table); | |
430 | #endif /* ISAPNP */ | |
431 | ||
432 | #endif /* !PCMCIA */ | |
433 | ||
434 | static struct scsi_host_template aha152x_driver_template; | |
435 | ||
436 | /* | |
437 | * internal states of the host | |
438 | * | |
439 | */ | |
440 | enum aha152x_state { | |
441 | idle=0, | |
442 | unknown, | |
443 | seldo, | |
444 | seldi, | |
445 | selto, | |
446 | busfree, | |
447 | msgo, | |
448 | cmd, | |
449 | msgi, | |
450 | status, | |
451 | datai, | |
452 | datao, | |
453 | parerr, | |
454 | rsti, | |
455 | maxstate | |
456 | }; | |
457 | ||
458 | /* | |
459 | * current state information of the host | |
460 | * | |
461 | */ | |
462 | struct aha152x_hostdata { | |
463 | Scsi_Cmnd *issue_SC; | |
464 | /* pending commands to issue */ | |
465 | ||
466 | Scsi_Cmnd *current_SC; | |
467 | /* current command on the bus */ | |
468 | ||
469 | Scsi_Cmnd *disconnected_SC; | |
470 | /* commands that disconnected */ | |
471 | ||
472 | Scsi_Cmnd *done_SC; | |
473 | /* command that was completed */ | |
474 | ||
475 | spinlock_t lock; | |
476 | /* host lock */ | |
477 | ||
478 | #if defined(AHA152X_DEBUG) | |
479 | const char *locker; | |
480 | /* which function has the lock */ | |
481 | int lockerl; /* where did it get it */ | |
482 | ||
483 | int debug; /* current debugging setting */ | |
484 | #endif | |
485 | ||
486 | #if defined(AHA152X_STAT) | |
487 | int total_commands; | |
488 | int disconnections; | |
489 | int busfree_without_any_action; | |
490 | int busfree_without_old_command; | |
491 | int busfree_without_new_command; | |
492 | int busfree_without_done_command; | |
493 | int busfree_with_check_condition; | |
494 | int count[maxstate]; | |
495 | int count_trans[maxstate]; | |
496 | unsigned long time[maxstate]; | |
497 | #endif | |
498 | ||
499 | int commands; /* current number of commands */ | |
500 | ||
501 | int reconnect; /* disconnection allowed */ | |
502 | int parity; /* parity checking enabled */ | |
503 | int synchronous; /* synchronous transferes enabled */ | |
504 | int delay; /* reset out delay */ | |
505 | int ext_trans; /* extended translation enabled */ | |
506 | ||
507 | int swint; /* software-interrupt was fired during detect() */ | |
508 | int service; /* bh needs to be run */ | |
509 | int in_intr; /* bh is running */ | |
510 | ||
511 | /* current state, | |
512 | previous state, | |
513 | last state different from current state */ | |
514 | enum aha152x_state state, prevstate, laststate; | |
515 | ||
516 | int target; | |
517 | /* reconnecting target */ | |
518 | ||
519 | unsigned char syncrate[8]; | |
520 | /* current synchronous transfer agreements */ | |
521 | ||
522 | unsigned char syncneg[8]; | |
523 | /* 0: no negotiation; | |
524 | * 1: negotiation in progress; | |
525 | * 2: negotiation completed | |
526 | */ | |
527 | ||
528 | int cmd_i; | |
529 | /* number of sent bytes of current command */ | |
530 | ||
531 | int msgi_len; | |
532 | /* number of received message bytes */ | |
533 | unsigned char msgi[256]; | |
534 | /* received message bytes */ | |
535 | ||
536 | int msgo_i, msgo_len; | |
537 | /* number of sent bytes and length of current messages */ | |
538 | unsigned char msgo[256]; | |
539 | /* pending messages */ | |
540 | ||
541 | int data_len; | |
542 | /* number of sent/received bytes in dataphase */ | |
543 | ||
544 | unsigned long io_port0; | |
545 | unsigned long io_port1; | |
546 | ||
547 | #ifdef __ISAPNP__ | |
548 | struct pnp_dev *pnpdev; | |
549 | #endif | |
550 | struct list_head host_list; | |
551 | }; | |
552 | ||
553 | ||
554 | /* | |
555 | * host specific command extension | |
556 | * | |
557 | */ | |
558 | struct aha152x_scdata { | |
559 | Scsi_Cmnd *next; /* next sc in queue */ | |
560 | struct completion *done;/* semaphore to block on */ | |
561 | unsigned char aha_orig_cmd_len; | |
562 | unsigned char aha_orig_cmnd[MAX_COMMAND_SIZE]; | |
563 | int aha_orig_resid; | |
564 | }; | |
565 | ||
566 | /* access macros for hostdata */ | |
567 | ||
568 | #define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata) | |
569 | ||
570 | #define HOSTNO ((shpnt)->host_no) | |
571 | ||
572 | #define CURRENT_SC (HOSTDATA(shpnt)->current_SC) | |
573 | #define DONE_SC (HOSTDATA(shpnt)->done_SC) | |
574 | #define ISSUE_SC (HOSTDATA(shpnt)->issue_SC) | |
575 | #define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC) | |
576 | #define QLOCK (HOSTDATA(shpnt)->lock) | |
577 | #define QLOCKER (HOSTDATA(shpnt)->locker) | |
578 | #define QLOCKERL (HOSTDATA(shpnt)->lockerl) | |
579 | ||
580 | #define STATE (HOSTDATA(shpnt)->state) | |
581 | #define PREVSTATE (HOSTDATA(shpnt)->prevstate) | |
582 | #define LASTSTATE (HOSTDATA(shpnt)->laststate) | |
583 | ||
584 | #define RECONN_TARGET (HOSTDATA(shpnt)->target) | |
585 | ||
586 | #define CMD_I (HOSTDATA(shpnt)->cmd_i) | |
587 | ||
588 | #define MSGO(i) (HOSTDATA(shpnt)->msgo[i]) | |
589 | #define MSGO_I (HOSTDATA(shpnt)->msgo_i) | |
590 | #define MSGOLEN (HOSTDATA(shpnt)->msgo_len) | |
591 | #define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow")) | |
592 | ||
593 | #define MSGI(i) (HOSTDATA(shpnt)->msgi[i]) | |
594 | #define MSGILEN (HOSTDATA(shpnt)->msgi_len) | |
595 | #define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow")) | |
596 | ||
597 | #define DATA_LEN (HOSTDATA(shpnt)->data_len) | |
598 | ||
599 | #define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id]) | |
600 | #define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id]) | |
601 | ||
602 | #define DELAY (HOSTDATA(shpnt)->delay) | |
603 | #define EXT_TRANS (HOSTDATA(shpnt)->ext_trans) | |
604 | #define TC1550 (HOSTDATA(shpnt)->tc1550) | |
605 | #define RECONNECT (HOSTDATA(shpnt)->reconnect) | |
606 | #define PARITY (HOSTDATA(shpnt)->parity) | |
607 | #define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous) | |
608 | ||
609 | #define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0) | |
610 | #define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1) | |
611 | ||
612 | #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble) | |
613 | #define SCNEXT(SCpnt) SCDATA(SCpnt)->next | |
614 | #define SCSEM(SCpnt) SCDATA(SCpnt)->done | |
615 | ||
616 | #define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) | |
617 | ||
618 | /* state handling */ | |
619 | static void seldi_run(struct Scsi_Host *shpnt); | |
620 | static void seldo_run(struct Scsi_Host *shpnt); | |
621 | static void selto_run(struct Scsi_Host *shpnt); | |
622 | static void busfree_run(struct Scsi_Host *shpnt); | |
623 | ||
624 | static void msgo_init(struct Scsi_Host *shpnt); | |
625 | static void msgo_run(struct Scsi_Host *shpnt); | |
626 | static void msgo_end(struct Scsi_Host *shpnt); | |
627 | ||
628 | static void cmd_init(struct Scsi_Host *shpnt); | |
629 | static void cmd_run(struct Scsi_Host *shpnt); | |
630 | static void cmd_end(struct Scsi_Host *shpnt); | |
631 | ||
632 | static void datai_init(struct Scsi_Host *shpnt); | |
633 | static void datai_run(struct Scsi_Host *shpnt); | |
634 | static void datai_end(struct Scsi_Host *shpnt); | |
635 | ||
636 | static void datao_init(struct Scsi_Host *shpnt); | |
637 | static void datao_run(struct Scsi_Host *shpnt); | |
638 | static void datao_end(struct Scsi_Host *shpnt); | |
639 | ||
640 | static void status_run(struct Scsi_Host *shpnt); | |
641 | ||
642 | static void msgi_run(struct Scsi_Host *shpnt); | |
643 | static void msgi_end(struct Scsi_Host *shpnt); | |
644 | ||
645 | static void parerr_run(struct Scsi_Host *shpnt); | |
646 | static void rsti_run(struct Scsi_Host *shpnt); | |
647 | ||
648 | static void is_complete(struct Scsi_Host *shpnt); | |
649 | ||
650 | /* | |
651 | * driver states | |
652 | * | |
653 | */ | |
654 | static struct { | |
655 | char *name; | |
656 | void (*init)(struct Scsi_Host *); | |
657 | void (*run)(struct Scsi_Host *); | |
658 | void (*end)(struct Scsi_Host *); | |
659 | int spio; | |
660 | } states[] = { | |
661 | { "idle", NULL, NULL, NULL, 0}, | |
662 | { "unknown", NULL, NULL, NULL, 0}, | |
663 | { "seldo", NULL, seldo_run, NULL, 0}, | |
664 | { "seldi", NULL, seldi_run, NULL, 0}, | |
665 | { "selto", NULL, selto_run, NULL, 0}, | |
666 | { "busfree", NULL, busfree_run, NULL, 0}, | |
667 | { "msgo", msgo_init, msgo_run, msgo_end, 1}, | |
668 | { "cmd", cmd_init, cmd_run, cmd_end, 1}, | |
669 | { "msgi", NULL, msgi_run, msgi_end, 1}, | |
670 | { "status", NULL, status_run, NULL, 1}, | |
671 | { "datai", datai_init, datai_run, datai_end, 0}, | |
672 | { "datao", datao_init, datao_run, datao_end, 0}, | |
673 | { "parerr", NULL, parerr_run, NULL, 0}, | |
674 | { "rsti", NULL, rsti_run, NULL, 0}, | |
675 | }; | |
676 | ||
677 | /* setup & interrupt */ | |
678 | static irqreturn_t intr(int irq, void *dev_id); | |
679 | static void reset_ports(struct Scsi_Host *shpnt); | |
680 | static void aha152x_error(struct Scsi_Host *shpnt, char *msg); | |
681 | static void done(struct Scsi_Host *shpnt, int error); | |
682 | ||
683 | /* diagnostics */ | |
684 | static void disp_ports(struct Scsi_Host *shpnt); | |
685 | static void show_command(Scsi_Cmnd * ptr); | |
686 | static void show_queues(struct Scsi_Host *shpnt); | |
687 | static void disp_enintr(struct Scsi_Host *shpnt); | |
688 | ||
689 | ||
690 | /* | |
691 | * queue services: | |
692 | * | |
693 | */ | |
694 | static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC) | |
695 | { | |
696 | Scsi_Cmnd *end; | |
697 | ||
698 | SCNEXT(new_SC) = NULL; | |
699 | if (!*SC) | |
700 | *SC = new_SC; | |
701 | else { | |
702 | for (end = *SC; SCNEXT(end); end = SCNEXT(end)) | |
703 | ; | |
704 | SCNEXT(end) = new_SC; | |
705 | } | |
706 | } | |
707 | ||
708 | static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC) | |
709 | { | |
710 | Scsi_Cmnd *ptr; | |
711 | ||
712 | ptr = *SC; | |
713 | if (ptr) { | |
714 | *SC = SCNEXT(*SC); | |
715 | SCNEXT(ptr)=NULL; | |
716 | } | |
717 | return ptr; | |
718 | } | |
719 | ||
720 | static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun) | |
721 | { | |
722 | Scsi_Cmnd *ptr, *prev; | |
723 | ||
724 | for (ptr = *SC, prev = NULL; | |
725 | ptr && ((ptr->device->id != target) || (ptr->device->lun != lun)); | |
726 | prev = ptr, ptr = SCNEXT(ptr)) | |
727 | ; | |
728 | ||
729 | if (ptr) { | |
730 | if (prev) | |
731 | SCNEXT(prev) = SCNEXT(ptr); | |
732 | else | |
733 | *SC = SCNEXT(ptr); | |
734 | ||
735 | SCNEXT(ptr)=NULL; | |
736 | } | |
737 | ||
738 | return ptr; | |
739 | } | |
740 | ||
741 | static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp) | |
742 | { | |
743 | Scsi_Cmnd *ptr, *prev; | |
744 | ||
745 | for (ptr = *SC, prev = NULL; | |
746 | ptr && SCp!=ptr; | |
747 | prev = ptr, ptr = SCNEXT(ptr)) | |
748 | ; | |
749 | ||
750 | if (ptr) { | |
751 | if (prev) | |
752 | SCNEXT(prev) = SCNEXT(ptr); | |
753 | else | |
754 | *SC = SCNEXT(ptr); | |
755 | ||
756 | SCNEXT(ptr)=NULL; | |
757 | } | |
758 | ||
759 | return ptr; | |
760 | } | |
761 | ||
762 | static irqreturn_t swintr(int irqno, void *dev_id) | |
763 | { | |
764 | struct Scsi_Host *shpnt = dev_id; | |
765 | ||
766 | HOSTDATA(shpnt)->swint++; | |
767 | ||
768 | SETPORT(DMACNTRL0, INTEN); | |
769 | return IRQ_HANDLED; | |
770 | } | |
771 | ||
772 | struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup) | |
773 | { | |
774 | struct Scsi_Host *shpnt; | |
775 | ||
776 | shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata)); | |
777 | if (!shpnt) { | |
778 | printk(KERN_ERR "aha152x: scsi_host_alloc failed\n"); | |
779 | return NULL; | |
780 | } | |
781 | ||
782 | memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt)); | |
783 | INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list); | |
784 | ||
785 | /* need to have host registered before triggering any interrupt */ | |
786 | list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list); | |
787 | ||
788 | shpnt->io_port = setup->io_port; | |
789 | shpnt->n_io_port = IO_RANGE; | |
790 | shpnt->irq = setup->irq; | |
791 | ||
792 | if (!setup->tc1550) { | |
793 | HOSTIOPORT0 = setup->io_port; | |
794 | HOSTIOPORT1 = setup->io_port; | |
795 | } else { | |
796 | HOSTIOPORT0 = setup->io_port+0x10; | |
797 | HOSTIOPORT1 = setup->io_port-0x10; | |
798 | } | |
799 | ||
800 | spin_lock_init(&QLOCK); | |
801 | RECONNECT = setup->reconnect; | |
802 | SYNCHRONOUS = setup->synchronous; | |
803 | PARITY = setup->parity; | |
804 | DELAY = setup->delay; | |
805 | EXT_TRANS = setup->ext_trans; | |
806 | ||
807 | #if defined(AHA152X_DEBUG) | |
808 | HOSTDATA(shpnt)->debug = setup->debug; | |
809 | #endif | |
810 | ||
811 | SETPORT(SCSIID, setup->scsiid << 4); | |
812 | shpnt->this_id = setup->scsiid; | |
813 | ||
814 | if (setup->reconnect) | |
815 | shpnt->can_queue = AHA152X_MAXQUEUE; | |
816 | ||
817 | /* RESET OUT */ | |
818 | printk("aha152x: resetting bus...\n"); | |
819 | SETPORT(SCSISEQ, SCSIRSTO); | |
820 | mdelay(256); | |
821 | SETPORT(SCSISEQ, 0); | |
822 | mdelay(DELAY); | |
823 | ||
824 | reset_ports(shpnt); | |
825 | ||
826 | printk(KERN_INFO | |
827 | "aha152x%d%s: " | |
828 | "vital data: rev=%x, " | |
829 | "io=0x%03lx (0x%03lx/0x%03lx), " | |
830 | "irq=%d, " | |
831 | "scsiid=%d, " | |
832 | "reconnect=%s, " | |
833 | "parity=%s, " | |
834 | "synchronous=%s, " | |
835 | "delay=%d, " | |
836 | "extended translation=%s\n", | |
837 | shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "", | |
838 | GETPORT(REV) & 0x7, | |
839 | shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1, | |
840 | shpnt->irq, | |
841 | shpnt->this_id, | |
842 | RECONNECT ? "enabled" : "disabled", | |
843 | PARITY ? "enabled" : "disabled", | |
844 | SYNCHRONOUS ? "enabled" : "disabled", | |
845 | DELAY, | |
846 | EXT_TRANS ? "enabled" : "disabled"); | |
847 | ||
848 | /* not expecting any interrupts */ | |
849 | SETPORT(SIMODE0, 0); | |
850 | SETPORT(SIMODE1, 0); | |
851 | ||
852 | if( request_irq(shpnt->irq, swintr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) { | |
853 | printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq); | |
854 | goto out_host_put; | |
855 | } | |
856 | ||
857 | HOSTDATA(shpnt)->swint = 0; | |
858 | ||
859 | printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no); | |
860 | ||
861 | mb(); | |
862 | SETPORT(DMACNTRL0, SWINT|INTEN); | |
863 | mdelay(1000); | |
864 | free_irq(shpnt->irq, shpnt); | |
865 | ||
866 | if (!HOSTDATA(shpnt)->swint) { | |
867 | if (TESTHI(DMASTAT, INTSTAT)) { | |
868 | printk("lost.\n"); | |
869 | } else { | |
870 | printk("failed.\n"); | |
871 | } | |
872 | ||
873 | SETPORT(DMACNTRL0, INTEN); | |
874 | ||
875 | printk(KERN_ERR "aha152x%d: irq %d possibly wrong. " | |
876 | "Please verify.\n", shpnt->host_no, shpnt->irq); | |
877 | goto out_host_put; | |
878 | } | |
879 | printk("ok.\n"); | |
880 | ||
881 | ||
882 | /* clear interrupts */ | |
883 | SETPORT(SSTAT0, 0x7f); | |
884 | SETPORT(SSTAT1, 0xef); | |
885 | ||
886 | if ( request_irq(shpnt->irq, intr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) { | |
887 | printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq); | |
888 | goto out_host_put; | |
889 | } | |
890 | ||
891 | if( scsi_add_host(shpnt, NULL) ) { | |
892 | free_irq(shpnt->irq, shpnt); | |
893 | printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no); | |
894 | goto out_host_put; | |
895 | } | |
896 | ||
897 | scsi_scan_host(shpnt); | |
898 | ||
899 | return shpnt; | |
900 | ||
901 | out_host_put: | |
902 | list_del(&HOSTDATA(shpnt)->host_list); | |
903 | scsi_host_put(shpnt); | |
904 | ||
905 | return NULL; | |
906 | } | |
907 | ||
908 | void aha152x_release(struct Scsi_Host *shpnt) | |
909 | { | |
910 | if (!shpnt) | |
911 | return; | |
912 | ||
913 | scsi_remove_host(shpnt); | |
914 | if (shpnt->irq) | |
915 | free_irq(shpnt->irq, shpnt); | |
916 | ||
917 | #if !defined(PCMCIA) | |
918 | if (shpnt->io_port) | |
919 | release_region(shpnt->io_port, IO_RANGE); | |
920 | #endif | |
921 | ||
922 | #ifdef __ISAPNP__ | |
923 | if (HOSTDATA(shpnt)->pnpdev) | |
924 | pnp_device_detach(HOSTDATA(shpnt)->pnpdev); | |
925 | #endif | |
926 | ||
927 | list_del(&HOSTDATA(shpnt)->host_list); | |
928 | scsi_host_put(shpnt); | |
929 | } | |
930 | ||
931 | ||
932 | /* | |
933 | * setup controller to generate interrupts depending | |
934 | * on current state (lock has to be acquired) | |
935 | * | |
936 | */ | |
937 | static int setup_expected_interrupts(struct Scsi_Host *shpnt) | |
938 | { | |
939 | if(CURRENT_SC) { | |
940 | CURRENT_SC->SCp.phase |= 1 << 16; | |
941 | ||
942 | if(CURRENT_SC->SCp.phase & selecting) { | |
943 | DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC)); | |
944 | SETPORT(SSTAT1, SELTO); | |
945 | SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0)); | |
946 | SETPORT(SIMODE1, ENSELTIMO); | |
947 | } else { | |
948 | DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : ""); | |
949 | SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0); | |
950 | SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); | |
951 | } | |
952 | } else if(STATE==seldi) { | |
953 | DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC)); | |
954 | SETPORT(SIMODE0, 0); | |
955 | SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); | |
956 | } else { | |
957 | DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n", | |
958 | CMDINFO(CURRENT_SC), | |
959 | DISCONNECTED_SC ? "(reselection)" : "", | |
960 | ISSUE_SC ? "(busfree)" : ""); | |
961 | SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0); | |
962 | SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0)); | |
963 | } | |
964 | ||
965 | if(!HOSTDATA(shpnt)->in_intr) | |
966 | SETBITS(DMACNTRL0, INTEN); | |
967 | ||
968 | return TESTHI(DMASTAT, INTSTAT); | |
969 | } | |
970 | ||
971 | ||
972 | /* | |
973 | * Queue a command and setup interrupts for a free bus. | |
974 | */ | |
975 | static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete, | |
976 | int phase, void (*done)(Scsi_Cmnd *)) | |
977 | { | |
978 | struct Scsi_Host *shpnt = SCpnt->device->host; | |
979 | unsigned long flags; | |
980 | ||
981 | #if defined(AHA152X_DEBUG) | |
982 | if (HOSTDATA(shpnt)->debug & debug_queue) { | |
983 | printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=", | |
984 | CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len, | |
985 | scsi_sg_count(SCpnt), scsi_bufflen(SCpnt)); | |
986 | __scsi_print_command(SCpnt->cmnd); | |
987 | } | |
988 | #endif | |
989 | ||
990 | SCpnt->scsi_done = done; | |
991 | SCpnt->SCp.phase = not_issued | phase; | |
992 | SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */ | |
993 | SCpnt->SCp.Message = 0; | |
994 | SCpnt->SCp.have_data_in = 0; | |
995 | SCpnt->SCp.sent_command = 0; | |
996 | ||
997 | if(SCpnt->SCp.phase & (resetting|check_condition)) { | |
998 | if(SCpnt->host_scribble==0 || SCSEM(SCpnt) || SCNEXT(SCpnt)) { | |
999 | printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt)); | |
1000 | return FAILED; | |
1001 | } | |
1002 | } else { | |
1003 | SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC); | |
1004 | if(SCpnt->host_scribble==0) { | |
1005 | printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt)); | |
1006 | return FAILED; | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | SCNEXT(SCpnt) = NULL; | |
1011 | SCSEM(SCpnt) = complete; | |
1012 | ||
1013 | /* setup scratch area | |
1014 | SCp.ptr : buffer pointer | |
1015 | SCp.this_residual : buffer length | |
1016 | SCp.buffer : next buffer | |
1017 | SCp.buffers_residual : left buffers in list | |
1018 | SCp.phase : current state of the command */ | |
1019 | ||
1020 | if ((phase & (check_condition|resetting)) || !scsi_sglist(SCpnt)) { | |
1021 | if (phase & check_condition) { | |
1022 | SCpnt->SCp.ptr = SCpnt->sense_buffer; | |
1023 | SCpnt->SCp.this_residual = sizeof(SCpnt->sense_buffer); | |
1024 | scsi_set_resid(SCpnt, sizeof(SCpnt->sense_buffer)); | |
1025 | } else { | |
1026 | SCpnt->SCp.ptr = NULL; | |
1027 | SCpnt->SCp.this_residual = 0; | |
1028 | scsi_set_resid(SCpnt, 0); | |
1029 | } | |
1030 | SCpnt->SCp.buffer = NULL; | |
1031 | SCpnt->SCp.buffers_residual = 0; | |
1032 | } else { | |
1033 | scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); | |
1034 | SCpnt->SCp.buffer = scsi_sglist(SCpnt); | |
1035 | SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer); | |
1036 | SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; | |
1037 | SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; | |
1038 | } | |
1039 | ||
1040 | DO_LOCK(flags); | |
1041 | ||
1042 | #if defined(AHA152X_STAT) | |
1043 | HOSTDATA(shpnt)->total_commands++; | |
1044 | #endif | |
1045 | ||
1046 | /* Turn led on, when this is the first command. */ | |
1047 | HOSTDATA(shpnt)->commands++; | |
1048 | if (HOSTDATA(shpnt)->commands==1) | |
1049 | SETPORT(PORTA, 1); | |
1050 | ||
1051 | append_SC(&ISSUE_SC, SCpnt); | |
1052 | ||
1053 | if(!HOSTDATA(shpnt)->in_intr) | |
1054 | setup_expected_interrupts(shpnt); | |
1055 | ||
1056 | DO_UNLOCK(flags); | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | /* | |
1062 | * queue a command | |
1063 | * | |
1064 | */ | |
1065 | static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) | |
1066 | { | |
1067 | #if 0 | |
1068 | if(*SCpnt->cmnd == REQUEST_SENSE) { | |
1069 | SCpnt->result = 0; | |
1070 | done(SCpnt); | |
1071 | ||
1072 | return 0; | |
1073 | } | |
1074 | #endif | |
1075 | ||
1076 | return aha152x_internal_queue(SCpnt, NULL, 0, done); | |
1077 | } | |
1078 | ||
1079 | ||
1080 | /* | |
1081 | * | |
1082 | * | |
1083 | */ | |
1084 | static void reset_done(Scsi_Cmnd *SCpnt) | |
1085 | { | |
1086 | #if 0 | |
1087 | struct Scsi_Host *shpnt = SCpnt->host; | |
1088 | DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt)); | |
1089 | #endif | |
1090 | if(SCSEM(SCpnt)) { | |
1091 | complete(SCSEM(SCpnt)); | |
1092 | } else { | |
1093 | printk(KERN_ERR "aha152x: reset_done w/o completion\n"); | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | /* | |
1098 | * Abort a command | |
1099 | * | |
1100 | */ | |
1101 | static int aha152x_abort(Scsi_Cmnd *SCpnt) | |
1102 | { | |
1103 | struct Scsi_Host *shpnt = SCpnt->device->host; | |
1104 | Scsi_Cmnd *ptr; | |
1105 | unsigned long flags; | |
1106 | ||
1107 | #if defined(AHA152X_DEBUG) | |
1108 | if(HOSTDATA(shpnt)->debug & debug_eh) { | |
1109 | printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt); | |
1110 | show_queues(shpnt); | |
1111 | } | |
1112 | #endif | |
1113 | ||
1114 | DO_LOCK(flags); | |
1115 | ||
1116 | ptr=remove_SC(&ISSUE_SC, SCpnt); | |
1117 | ||
1118 | if(ptr) { | |
1119 | DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt)); | |
1120 | ||
1121 | HOSTDATA(shpnt)->commands--; | |
1122 | if (!HOSTDATA(shpnt)->commands) | |
1123 | SETPORT(PORTA, 0); | |
1124 | DO_UNLOCK(flags); | |
1125 | ||
1126 | kfree(SCpnt->host_scribble); | |
1127 | SCpnt->host_scribble=NULL; | |
1128 | ||
1129 | return SUCCESS; | |
1130 | } | |
1131 | ||
1132 | DO_UNLOCK(flags); | |
1133 | ||
1134 | /* | |
1135 | * FIXME: | |
1136 | * for current command: queue ABORT for message out and raise ATN | |
1137 | * for disconnected command: pseudo SC with ABORT message or ABORT on reselection? | |
1138 | * | |
1139 | */ | |
1140 | ||
1141 | printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt)); | |
1142 | ||
1143 | return FAILED; | |
1144 | } | |
1145 | ||
1146 | /* | |
1147 | * Reset a device | |
1148 | * | |
1149 | */ | |
1150 | static int aha152x_device_reset(Scsi_Cmnd * SCpnt) | |
1151 | { | |
1152 | struct Scsi_Host *shpnt = SCpnt->device->host; | |
1153 | DECLARE_COMPLETION(done); | |
1154 | int ret, issued, disconnected; | |
1155 | unsigned char old_cmd_len = SCpnt->cmd_len; | |
1156 | unsigned long flags; | |
1157 | unsigned long timeleft; | |
1158 | ||
1159 | #if defined(AHA152X_DEBUG) | |
1160 | if(HOSTDATA(shpnt)->debug & debug_eh) { | |
1161 | printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt); | |
1162 | show_queues(shpnt); | |
1163 | } | |
1164 | #endif | |
1165 | ||
1166 | if(CURRENT_SC==SCpnt) { | |
1167 | printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt)); | |
1168 | return FAILED; | |
1169 | } | |
1170 | ||
1171 | DO_LOCK(flags); | |
1172 | issued = remove_SC(&ISSUE_SC, SCpnt)==0; | |
1173 | disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt); | |
1174 | DO_UNLOCK(flags); | |
1175 | ||
1176 | SCpnt->cmd_len = 0; | |
1177 | ||
1178 | aha152x_internal_queue(SCpnt, &done, resetting, reset_done); | |
1179 | ||
1180 | timeleft = wait_for_completion_timeout(&done, 100*HZ); | |
1181 | if (!timeleft) { | |
1182 | /* remove command from issue queue */ | |
1183 | DO_LOCK(flags); | |
1184 | remove_SC(&ISSUE_SC, SCpnt); | |
1185 | DO_UNLOCK(flags); | |
1186 | } | |
1187 | ||
1188 | SCpnt->cmd_len = old_cmd_len; | |
1189 | ||
1190 | DO_LOCK(flags); | |
1191 | ||
1192 | if(SCpnt->SCp.phase & resetted) { | |
1193 | HOSTDATA(shpnt)->commands--; | |
1194 | if (!HOSTDATA(shpnt)->commands) | |
1195 | SETPORT(PORTA, 0); | |
1196 | kfree(SCpnt->host_scribble); | |
1197 | SCpnt->host_scribble=NULL; | |
1198 | ||
1199 | ret = SUCCESS; | |
1200 | } else { | |
1201 | /* requeue */ | |
1202 | if(!issued) { | |
1203 | append_SC(&ISSUE_SC, SCpnt); | |
1204 | } else if(disconnected) { | |
1205 | append_SC(&DISCONNECTED_SC, SCpnt); | |
1206 | } | |
1207 | ||
1208 | ret = FAILED; | |
1209 | } | |
1210 | ||
1211 | DO_UNLOCK(flags); | |
1212 | return ret; | |
1213 | } | |
1214 | ||
1215 | static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs) | |
1216 | { | |
1217 | Scsi_Cmnd *ptr; | |
1218 | ||
1219 | ptr=*SCs; | |
1220 | while(ptr) { | |
1221 | Scsi_Cmnd *next; | |
1222 | ||
1223 | if(SCDATA(ptr)) { | |
1224 | next = SCNEXT(ptr); | |
1225 | } else { | |
1226 | printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr); | |
1227 | next = NULL; | |
1228 | } | |
1229 | ||
1230 | if (!ptr->device->soft_reset) { | |
1231 | DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr); | |
1232 | remove_SC(SCs, ptr); | |
1233 | HOSTDATA(shpnt)->commands--; | |
1234 | kfree(ptr->host_scribble); | |
1235 | ptr->host_scribble=NULL; | |
1236 | } | |
1237 | ||
1238 | ptr = next; | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | /* | |
1243 | * Reset the bus | |
1244 | * | |
1245 | */ | |
1246 | static int aha152x_bus_reset_host(struct Scsi_Host *shpnt) | |
1247 | { | |
1248 | unsigned long flags; | |
1249 | ||
1250 | DO_LOCK(flags); | |
1251 | ||
1252 | #if defined(AHA152X_DEBUG) | |
1253 | if(HOSTDATA(shpnt)->debug & debug_eh) { | |
1254 | printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no); | |
1255 | show_queues(shpnt); | |
1256 | } | |
1257 | #endif | |
1258 | ||
1259 | free_hard_reset_SCs(shpnt, &ISSUE_SC); | |
1260 | free_hard_reset_SCs(shpnt, &DISCONNECTED_SC); | |
1261 | ||
1262 | DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no); | |
1263 | ||
1264 | SETPORT(SCSISEQ, SCSIRSTO); | |
1265 | mdelay(256); | |
1266 | SETPORT(SCSISEQ, 0); | |
1267 | mdelay(DELAY); | |
1268 | ||
1269 | DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no); | |
1270 | ||
1271 | setup_expected_interrupts(shpnt); | |
1272 | if(HOSTDATA(shpnt)->commands==0) | |
1273 | SETPORT(PORTA, 0); | |
1274 | ||
1275 | DO_UNLOCK(flags); | |
1276 | ||
1277 | return SUCCESS; | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * Reset the bus | |
1282 | * | |
1283 | */ | |
1284 | static int aha152x_bus_reset(Scsi_Cmnd *SCpnt) | |
1285 | { | |
1286 | return aha152x_bus_reset_host(SCpnt->device->host); | |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | * Restore default values to the AIC-6260 registers and reset the fifos | |
1291 | * | |
1292 | */ | |
1293 | static void reset_ports(struct Scsi_Host *shpnt) | |
1294 | { | |
1295 | unsigned long flags; | |
1296 | ||
1297 | /* disable interrupts */ | |
1298 | SETPORT(DMACNTRL0, RSTFIFO); | |
1299 | ||
1300 | SETPORT(SCSISEQ, 0); | |
1301 | ||
1302 | SETPORT(SXFRCTL1, 0); | |
1303 | SETPORT(SCSISIG, 0); | |
1304 | SETRATE(0); | |
1305 | ||
1306 | /* clear all interrupt conditions */ | |
1307 | SETPORT(SSTAT0, 0x7f); | |
1308 | SETPORT(SSTAT1, 0xef); | |
1309 | ||
1310 | SETPORT(SSTAT4, SYNCERR | FWERR | FRERR); | |
1311 | ||
1312 | SETPORT(DMACNTRL0, 0); | |
1313 | SETPORT(DMACNTRL1, 0); | |
1314 | ||
1315 | SETPORT(BRSTCNTRL, 0xf1); | |
1316 | ||
1317 | /* clear SCSI fifos and transfer count */ | |
1318 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); | |
1319 | SETPORT(SXFRCTL0, CH1); | |
1320 | ||
1321 | DO_LOCK(flags); | |
1322 | setup_expected_interrupts(shpnt); | |
1323 | DO_UNLOCK(flags); | |
1324 | } | |
1325 | ||
1326 | /* | |
1327 | * Reset the host (bus and controller) | |
1328 | * | |
1329 | */ | |
1330 | int aha152x_host_reset_host(struct Scsi_Host *shpnt) | |
1331 | { | |
1332 | DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no); | |
1333 | ||
1334 | aha152x_bus_reset_host(shpnt); | |
1335 | ||
1336 | DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no); | |
1337 | reset_ports(shpnt); | |
1338 | ||
1339 | return SUCCESS; | |
1340 | } | |
1341 | ||
1342 | /* | |
1343 | * Reset the host (bus and controller) | |
1344 | * | |
1345 | */ | |
1346 | static int aha152x_host_reset(Scsi_Cmnd *SCpnt) | |
1347 | { | |
1348 | return aha152x_host_reset_host(SCpnt->device->host); | |
1349 | } | |
1350 | ||
1351 | /* | |
1352 | * Return the "logical geometry" | |
1353 | * | |
1354 | */ | |
1355 | static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
1356 | sector_t capacity, int *info_array) | |
1357 | { | |
1358 | struct Scsi_Host *shpnt = sdev->host; | |
1359 | ||
1360 | /* try default translation */ | |
1361 | info_array[0] = 64; | |
1362 | info_array[1] = 32; | |
1363 | info_array[2] = (unsigned long)capacity / (64 * 32); | |
1364 | ||
1365 | /* for disks >1GB do some guessing */ | |
1366 | if (info_array[2] >= 1024) { | |
1367 | int info[3]; | |
1368 | ||
1369 | /* try to figure out the geometry from the partition table */ | |
1370 | if (scsicam_bios_param(bdev, capacity, info) < 0 || | |
1371 | !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) { | |
1372 | if (EXT_TRANS) { | |
1373 | printk(KERN_NOTICE | |
1374 | "aha152x: unable to verify geometry for disk with >1GB.\n" | |
1375 | " using extended translation.\n"); | |
1376 | info_array[0] = 255; | |
1377 | info_array[1] = 63; | |
1378 | info_array[2] = (unsigned long)capacity / (255 * 63); | |
1379 | } else { | |
1380 | printk(KERN_NOTICE | |
1381 | "aha152x: unable to verify geometry for disk with >1GB.\n" | |
1382 | " Using default translation. Please verify yourself.\n" | |
1383 | " Perhaps you need to enable extended translation in the driver.\n" | |
1384 | " See Documentation/scsi/aha152x.txt for details.\n"); | |
1385 | } | |
1386 | } else { | |
1387 | info_array[0] = info[0]; | |
1388 | info_array[1] = info[1]; | |
1389 | info_array[2] = info[2]; | |
1390 | ||
1391 | if (info[0] == 255 && !EXT_TRANS) { | |
1392 | printk(KERN_NOTICE | |
1393 | "aha152x: current partition table is using extended translation.\n" | |
1394 | " using it also, although it's not explicitly enabled.\n"); | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | /* | |
1403 | * Internal done function | |
1404 | * | |
1405 | */ | |
1406 | static void done(struct Scsi_Host *shpnt, int error) | |
1407 | { | |
1408 | if (CURRENT_SC) { | |
1409 | if(DONE_SC) | |
1410 | printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC); | |
1411 | ||
1412 | DONE_SC = CURRENT_SC; | |
1413 | CURRENT_SC = NULL; | |
1414 | DONE_SC->result = error; | |
1415 | } else | |
1416 | printk(KERN_ERR "aha152x: done() called outside of command\n"); | |
1417 | } | |
1418 | ||
1419 | static struct work_struct aha152x_tq; | |
1420 | ||
1421 | /* | |
1422 | * Run service completions on the card with interrupts enabled. | |
1423 | * | |
1424 | */ | |
1425 | static void run(struct work_struct *work) | |
1426 | { | |
1427 | struct aha152x_hostdata *hd; | |
1428 | ||
1429 | list_for_each_entry(hd, &aha152x_host_list, host_list) { | |
1430 | struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); | |
1431 | ||
1432 | is_complete(shost); | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | /* | |
1437 | * Interrupt handler | |
1438 | * | |
1439 | */ | |
1440 | static irqreturn_t intr(int irqno, void *dev_id) | |
1441 | { | |
1442 | struct Scsi_Host *shpnt = (struct Scsi_Host *)dev_id; | |
1443 | unsigned long flags; | |
1444 | unsigned char rev, dmacntrl0; | |
1445 | ||
1446 | if (!shpnt) { | |
1447 | printk(KERN_ERR "aha152x: catched interrupt %d for unknown controller.\n", irqno); | |
1448 | return IRQ_NONE; | |
1449 | } | |
1450 | ||
1451 | /* | |
1452 | * Read a couple of registers that are known to not be all 1's. If | |
1453 | * we read all 1's (-1), that means that either: | |
1454 | * | |
1455 | * a. The host adapter chip has gone bad, and we cannot control it, | |
1456 | * OR | |
1457 | * b. The host adapter is a PCMCIA card that has been ejected | |
1458 | * | |
1459 | * In either case, we cannot do anything with the host adapter at | |
1460 | * this point in time. So just ignore the interrupt and return. | |
1461 | * In the latter case, the interrupt might actually be meant for | |
1462 | * someone else sharing this IRQ, and that driver will handle it. | |
1463 | */ | |
1464 | rev = GETPORT(REV); | |
1465 | dmacntrl0 = GETPORT(DMACNTRL0); | |
1466 | if ((rev == 0xFF) && (dmacntrl0 == 0xFF)) | |
1467 | return IRQ_NONE; | |
1468 | ||
1469 | if( TESTLO(DMASTAT, INTSTAT) ) | |
1470 | return IRQ_NONE; | |
1471 | ||
1472 | /* no more interrupts from the controller, while we're busy. | |
1473 | INTEN is restored by the BH handler */ | |
1474 | CLRBITS(DMACNTRL0, INTEN); | |
1475 | ||
1476 | DO_LOCK(flags); | |
1477 | if( HOSTDATA(shpnt)->service==0 ) { | |
1478 | HOSTDATA(shpnt)->service=1; | |
1479 | ||
1480 | /* Poke the BH handler */ | |
1481 | INIT_WORK(&aha152x_tq, run); | |
1482 | schedule_work(&aha152x_tq); | |
1483 | } | |
1484 | DO_UNLOCK(flags); | |
1485 | ||
1486 | return IRQ_HANDLED; | |
1487 | } | |
1488 | ||
1489 | /* | |
1490 | * busfree phase | |
1491 | * - handle completition/disconnection/error of current command | |
1492 | * - start selection for next command (if any) | |
1493 | */ | |
1494 | static void busfree_run(struct Scsi_Host *shpnt) | |
1495 | { | |
1496 | unsigned long flags; | |
1497 | #if defined(AHA152X_STAT) | |
1498 | int action=0; | |
1499 | #endif | |
1500 | ||
1501 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); | |
1502 | SETPORT(SXFRCTL0, CH1); | |
1503 | ||
1504 | SETPORT(SSTAT1, CLRBUSFREE); | |
1505 | ||
1506 | if(CURRENT_SC) { | |
1507 | #if defined(AHA152X_STAT) | |
1508 | action++; | |
1509 | #endif | |
1510 | CURRENT_SC->SCp.phase &= ~syncneg; | |
1511 | ||
1512 | if(CURRENT_SC->SCp.phase & completed) { | |
1513 | /* target sent COMMAND COMPLETE */ | |
1514 | done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16)); | |
1515 | ||
1516 | } else if(CURRENT_SC->SCp.phase & aborted) { | |
1517 | DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC)); | |
1518 | done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16)); | |
1519 | ||
1520 | } else if(CURRENT_SC->SCp.phase & resetted) { | |
1521 | DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC)); | |
1522 | done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16)); | |
1523 | ||
1524 | } else if(CURRENT_SC->SCp.phase & disconnected) { | |
1525 | /* target sent DISCONNECT */ | |
1526 | DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n", | |
1527 | CMDINFO(CURRENT_SC), | |
1528 | scsi_get_resid(CURRENT_SC), | |
1529 | scsi_bufflen(CURRENT_SC)); | |
1530 | #if defined(AHA152X_STAT) | |
1531 | HOSTDATA(shpnt)->disconnections++; | |
1532 | #endif | |
1533 | append_SC(&DISCONNECTED_SC, CURRENT_SC); | |
1534 | CURRENT_SC->SCp.phase |= 1 << 16; | |
1535 | CURRENT_SC = NULL; | |
1536 | ||
1537 | } else { | |
1538 | done(shpnt, DID_ERROR << 16); | |
1539 | } | |
1540 | #if defined(AHA152X_STAT) | |
1541 | } else { | |
1542 | HOSTDATA(shpnt)->busfree_without_old_command++; | |
1543 | #endif | |
1544 | } | |
1545 | ||
1546 | DO_LOCK(flags); | |
1547 | ||
1548 | if(DONE_SC) { | |
1549 | #if defined(AHA152X_STAT) | |
1550 | action++; | |
1551 | #endif | |
1552 | ||
1553 | if(DONE_SC->SCp.phase & check_condition) { | |
1554 | struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC; | |
1555 | struct aha152x_scdata *sc = SCDATA(cmd); | |
1556 | ||
1557 | #if 0 | |
1558 | if(HOSTDATA(shpnt)->debug & debug_eh) { | |
1559 | printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC)); | |
1560 | scsi_print_sense("bh", DONE_SC); | |
1561 | } | |
1562 | #endif | |
1563 | ||
1564 | /* restore old command */ | |
1565 | memcpy(cmd->cmnd, sc->aha_orig_cmnd, sizeof(cmd->cmnd)); | |
1566 | cmd->cmd_len = sc->aha_orig_cmd_len; | |
1567 | scsi_set_resid(cmd, sc->aha_orig_resid); | |
1568 | ||
1569 | cmd->SCp.Status = SAM_STAT_CHECK_CONDITION; | |
1570 | ||
1571 | HOSTDATA(shpnt)->commands--; | |
1572 | if (!HOSTDATA(shpnt)->commands) | |
1573 | SETPORT(PORTA, 0); /* turn led off */ | |
1574 | } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) { | |
1575 | #if defined(AHA152X_STAT) | |
1576 | HOSTDATA(shpnt)->busfree_with_check_condition++; | |
1577 | #endif | |
1578 | #if 0 | |
1579 | DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC)); | |
1580 | #endif | |
1581 | ||
1582 | if(!(DONE_SC->SCp.phase & not_issued)) { | |
1583 | struct aha152x_scdata *sc; | |
1584 | Scsi_Cmnd *ptr = DONE_SC; | |
1585 | DONE_SC=NULL; | |
1586 | #if 0 | |
1587 | DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr)); | |
1588 | #endif | |
1589 | ||
1590 | /* save old command */ | |
1591 | sc = SCDATA(ptr); | |
1592 | /* It was allocated in aha152x_internal_queue? */ | |
1593 | BUG_ON(!sc); | |
1594 | memcpy(sc->aha_orig_cmnd, ptr->cmnd, | |
1595 | sizeof(ptr->cmnd)); | |
1596 | sc->aha_orig_cmd_len = ptr->cmd_len; | |
1597 | sc->aha_orig_resid = scsi_get_resid(ptr); | |
1598 | ||
1599 | ptr->cmnd[0] = REQUEST_SENSE; | |
1600 | ptr->cmnd[1] = 0; | |
1601 | ptr->cmnd[2] = 0; | |
1602 | ptr->cmnd[3] = 0; | |
1603 | ptr->cmnd[4] = sizeof(ptr->sense_buffer); | |
1604 | ptr->cmnd[5] = 0; | |
1605 | ptr->cmd_len = 6; | |
1606 | ||
1607 | DO_UNLOCK(flags); | |
1608 | aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done); | |
1609 | DO_LOCK(flags); | |
1610 | #if 0 | |
1611 | } else { | |
1612 | DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC)); | |
1613 | #endif | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | if(DONE_SC && DONE_SC->scsi_done) { | |
1618 | #if defined(AHA152X_DEBUG) | |
1619 | int hostno=DONE_SC->device->host->host_no; | |
1620 | int id=DONE_SC->device->id & 0xf; | |
1621 | int lun=DONE_SC->device->lun & 0x7; | |
1622 | #endif | |
1623 | Scsi_Cmnd *ptr = DONE_SC; | |
1624 | DONE_SC=NULL; | |
1625 | ||
1626 | /* turn led off, when no commands are in the driver */ | |
1627 | HOSTDATA(shpnt)->commands--; | |
1628 | if (!HOSTDATA(shpnt)->commands) | |
1629 | SETPORT(PORTA, 0); /* turn led off */ | |
1630 | ||
1631 | if(ptr->scsi_done != reset_done) { | |
1632 | kfree(ptr->host_scribble); | |
1633 | ptr->host_scribble=NULL; | |
1634 | } | |
1635 | ||
1636 | DO_UNLOCK(flags); | |
1637 | DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr); | |
1638 | ptr->scsi_done(ptr); | |
1639 | DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr); | |
1640 | DO_LOCK(flags); | |
1641 | } | |
1642 | ||
1643 | DONE_SC=NULL; | |
1644 | #if defined(AHA152X_STAT) | |
1645 | } else { | |
1646 | HOSTDATA(shpnt)->busfree_without_done_command++; | |
1647 | #endif | |
1648 | } | |
1649 | ||
1650 | if(ISSUE_SC) | |
1651 | CURRENT_SC = remove_first_SC(&ISSUE_SC); | |
1652 | ||
1653 | DO_UNLOCK(flags); | |
1654 | ||
1655 | if(CURRENT_SC) { | |
1656 | #if defined(AHA152X_STAT) | |
1657 | action++; | |
1658 | #endif | |
1659 | CURRENT_SC->SCp.phase |= selecting; | |
1660 | ||
1661 | DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC)); | |
1662 | ||
1663 | /* clear selection timeout */ | |
1664 | SETPORT(SSTAT1, SELTO); | |
1665 | ||
1666 | SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id); | |
1667 | SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER); | |
1668 | SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0)); | |
1669 | } else { | |
1670 | #if defined(AHA152X_STAT) | |
1671 | HOSTDATA(shpnt)->busfree_without_new_command++; | |
1672 | #endif | |
1673 | SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0); | |
1674 | } | |
1675 | ||
1676 | #if defined(AHA152X_STAT) | |
1677 | if(!action) | |
1678 | HOSTDATA(shpnt)->busfree_without_any_action++; | |
1679 | #endif | |
1680 | } | |
1681 | ||
1682 | /* | |
1683 | * Selection done (OUT) | |
1684 | * - queue IDENTIFY message and SDTR to selected target for message out | |
1685 | * (ATN asserted automagically via ENAUTOATNO in busfree()) | |
1686 | */ | |
1687 | static void seldo_run(struct Scsi_Host *shpnt) | |
1688 | { | |
1689 | SETPORT(SCSISIG, 0); | |
1690 | SETPORT(SSTAT1, CLRBUSFREE); | |
1691 | SETPORT(SSTAT1, CLRPHASECHG); | |
1692 | ||
1693 | CURRENT_SC->SCp.phase &= ~(selecting|not_issued); | |
1694 | ||
1695 | SETPORT(SCSISEQ, 0); | |
1696 | ||
1697 | if (TESTLO(SSTAT0, SELDO)) { | |
1698 | printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC)); | |
1699 | done(shpnt, DID_NO_CONNECT << 16); | |
1700 | return; | |
1701 | } | |
1702 | ||
1703 | SETPORT(SSTAT0, CLRSELDO); | |
1704 | ||
1705 | ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); | |
1706 | ||
1707 | if (CURRENT_SC->SCp.phase & aborting) { | |
1708 | ADDMSGO(ABORT); | |
1709 | } else if (CURRENT_SC->SCp.phase & resetting) { | |
1710 | ADDMSGO(BUS_DEVICE_RESET); | |
1711 | } else if (SYNCNEG==0 && SYNCHRONOUS) { | |
1712 | CURRENT_SC->SCp.phase |= syncneg; | |
1713 | MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8); | |
1714 | SYNCNEG=1; /* negotiation in progress */ | |
1715 | } | |
1716 | ||
1717 | SETRATE(SYNCRATE); | |
1718 | } | |
1719 | ||
1720 | /* | |
1721 | * Selection timeout | |
1722 | * - return command to mid-level with failure cause | |
1723 | * | |
1724 | */ | |
1725 | static void selto_run(struct Scsi_Host *shpnt) | |
1726 | { | |
1727 | SETPORT(SCSISEQ, 0); | |
1728 | SETPORT(SSTAT1, CLRSELTIMO); | |
1729 | ||
1730 | DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC)); | |
1731 | ||
1732 | if(!CURRENT_SC) { | |
1733 | DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC)); | |
1734 | return; | |
1735 | } | |
1736 | ||
1737 | CURRENT_SC->SCp.phase &= ~selecting; | |
1738 | ||
1739 | if (CURRENT_SC->SCp.phase & aborted) { | |
1740 | DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC)); | |
1741 | done(shpnt, DID_ABORT << 16); | |
1742 | } else if (TESTLO(SSTAT0, SELINGO)) { | |
1743 | DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC)); | |
1744 | done(shpnt, DID_BUS_BUSY << 16); | |
1745 | } else { | |
1746 | /* ARBITRATION won, but SELECTION failed */ | |
1747 | DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC)); | |
1748 | done(shpnt, DID_NO_CONNECT << 16); | |
1749 | } | |
1750 | } | |
1751 | ||
1752 | /* | |
1753 | * Selection in done | |
1754 | * - put current command back to issue queue | |
1755 | * (reconnection of a disconnected nexus instead | |
1756 | * of successful selection out) | |
1757 | * | |
1758 | */ | |
1759 | static void seldi_run(struct Scsi_Host *shpnt) | |
1760 | { | |
1761 | int selid; | |
1762 | int target; | |
1763 | unsigned long flags; | |
1764 | ||
1765 | SETPORT(SCSISIG, 0); | |
1766 | SETPORT(SSTAT0, CLRSELDI); | |
1767 | SETPORT(SSTAT1, CLRBUSFREE); | |
1768 | SETPORT(SSTAT1, CLRPHASECHG); | |
1769 | ||
1770 | if(CURRENT_SC) { | |
1771 | if(!(CURRENT_SC->SCp.phase & not_issued)) | |
1772 | printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC)); | |
1773 | ||
1774 | DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC)); | |
1775 | ||
1776 | DO_LOCK(flags); | |
1777 | append_SC(&ISSUE_SC, CURRENT_SC); | |
1778 | DO_UNLOCK(flags); | |
1779 | ||
1780 | CURRENT_SC = NULL; | |
1781 | } | |
1782 | ||
1783 | if(!DISCONNECTED_SC) { | |
1784 | DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC)); | |
1785 | return; | |
1786 | } | |
1787 | ||
1788 | RECONN_TARGET=-1; | |
1789 | ||
1790 | selid = GETPORT(SELID) & ~(1 << shpnt->this_id); | |
1791 | ||
1792 | if (selid==0) { | |
1793 | printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid); | |
1794 | return; | |
1795 | } | |
1796 | ||
1797 | for(target=7; !(selid & (1 << target)); target--) | |
1798 | ; | |
1799 | ||
1800 | if(selid & ~(1 << target)) { | |
1801 | printk("aha152x%d: multiple targets reconnected (%02x)\n", | |
1802 | HOSTNO, selid); | |
1803 | } | |
1804 | ||
1805 | ||
1806 | SETPORT(SCSIID, (shpnt->this_id << OID_) | target); | |
1807 | SETPORT(SCSISEQ, 0); | |
1808 | ||
1809 | SETRATE(HOSTDATA(shpnt)->syncrate[target]); | |
1810 | ||
1811 | RECONN_TARGET=target; | |
1812 | DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid); | |
1813 | } | |
1814 | ||
1815 | /* | |
1816 | * message in phase | |
1817 | * - handle initial message after reconnection to identify | |
1818 | * reconnecting nexus | |
1819 | * - queue command on DISCONNECTED_SC on DISCONNECT message | |
1820 | * - set completed flag on COMMAND COMPLETE | |
1821 | * (other completition code moved to busfree_run) | |
1822 | * - handle response to SDTR | |
1823 | * - clear synchronous transfer agreements on BUS RESET | |
1824 | * | |
1825 | * FIXME: what about SAVE POINTERS, RESTORE POINTERS? | |
1826 | * | |
1827 | */ | |
1828 | static void msgi_run(struct Scsi_Host *shpnt) | |
1829 | { | |
1830 | for(;;) { | |
1831 | int sstat1 = GETPORT(SSTAT1); | |
1832 | ||
1833 | if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT)) | |
1834 | return; | |
1835 | ||
1836 | if(TESTLO(SSTAT0,SPIORDY)) { | |
1837 | DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC)); | |
1838 | return; | |
1839 | } | |
1840 | ||
1841 | ADDMSGI(GETPORT(SCSIDAT)); | |
1842 | ||
1843 | #if defined(AHA152X_DEBUG) | |
1844 | if (HOSTDATA(shpnt)->debug & debug_msgi) { | |
1845 | printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0)); | |
1846 | spi_print_msg(&MSGI(0)); | |
1847 | printk("\n"); | |
1848 | } | |
1849 | #endif | |
1850 | ||
1851 | if(!CURRENT_SC) { | |
1852 | if(LASTSTATE!=seldi) { | |
1853 | printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO); | |
1854 | } | |
1855 | ||
1856 | /* | |
1857 | * Handle reselection | |
1858 | */ | |
1859 | if(!(MSGI(0) & IDENTIFY_BASE)) { | |
1860 | printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO); | |
1861 | continue; | |
1862 | } | |
1863 | ||
1864 | CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f); | |
1865 | ||
1866 | if (!CURRENT_SC) { | |
1867 | show_queues(shpnt); | |
1868 | printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f); | |
1869 | continue; | |
1870 | } | |
1871 | ||
1872 | DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC)); | |
1873 | ||
1874 | CURRENT_SC->SCp.Message = MSGI(0); | |
1875 | CURRENT_SC->SCp.phase &= ~disconnected; | |
1876 | ||
1877 | MSGILEN=0; | |
1878 | ||
1879 | /* next message if any */ | |
1880 | continue; | |
1881 | } | |
1882 | ||
1883 | CURRENT_SC->SCp.Message = MSGI(0); | |
1884 | ||
1885 | switch (MSGI(0)) { | |
1886 | case DISCONNECT: | |
1887 | if (!RECONNECT) | |
1888 | printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC)); | |
1889 | ||
1890 | CURRENT_SC->SCp.phase |= disconnected; | |
1891 | break; | |
1892 | ||
1893 | case COMMAND_COMPLETE: | |
1894 | if(CURRENT_SC->SCp.phase & completed) | |
1895 | DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC)); | |
1896 | ||
1897 | CURRENT_SC->SCp.phase |= completed; | |
1898 | break; | |
1899 | ||
1900 | case MESSAGE_REJECT: | |
1901 | if (SYNCNEG==1) { | |
1902 | printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC)); | |
1903 | SYNCNEG=2; /* negotiation completed */ | |
1904 | } else | |
1905 | printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC)); | |
1906 | break; | |
1907 | ||
1908 | case SAVE_POINTERS: | |
1909 | break; | |
1910 | ||
1911 | case RESTORE_POINTERS: | |
1912 | break; | |
1913 | ||
1914 | case EXTENDED_MESSAGE: | |
1915 | if(MSGILEN<2 || MSGILEN<MSGI(1)+2) { | |
1916 | /* not yet completed */ | |
1917 | continue; | |
1918 | } | |
1919 | ||
1920 | switch (MSGI(2)) { | |
1921 | case EXTENDED_SDTR: | |
1922 | { | |
1923 | long ticks; | |
1924 | ||
1925 | if (MSGI(1) != 3) { | |
1926 | printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC)); | |
1927 | break; | |
1928 | } | |
1929 | ||
1930 | if (!HOSTDATA(shpnt)->synchronous) | |
1931 | break; | |
1932 | ||
1933 | printk(INFO_LEAD, CMDINFO(CURRENT_SC)); | |
1934 | spi_print_msg(&MSGI(0)); | |
1935 | printk("\n"); | |
1936 | ||
1937 | ticks = (MSGI(3) * 4 + 49) / 50; | |
1938 | ||
1939 | if (syncneg) { | |
1940 | /* negotiation in progress */ | |
1941 | if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) { | |
1942 | ADDMSGO(MESSAGE_REJECT); | |
1943 | printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC)); | |
1944 | break; | |
1945 | } | |
1946 | ||
1947 | SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); | |
1948 | } else if (ticks <= 9 && MSGI(4) >= 1) { | |
1949 | ADDMSGO(EXTENDED_MESSAGE); | |
1950 | ADDMSGO(3); | |
1951 | ADDMSGO(EXTENDED_SDTR); | |
1952 | if (ticks < 4) { | |
1953 | ticks = 4; | |
1954 | ADDMSGO(50); | |
1955 | } else | |
1956 | ADDMSGO(MSGI(3)); | |
1957 | ||
1958 | if (MSGI(4) > 8) | |
1959 | MSGI(4) = 8; | |
1960 | ||
1961 | ADDMSGO(MSGI(4)); | |
1962 | ||
1963 | SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); | |
1964 | } else { | |
1965 | /* requested SDTR is too slow, do it asynchronously */ | |
1966 | printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC)); | |
1967 | ADDMSGO(MESSAGE_REJECT); | |
1968 | } | |
1969 | ||
1970 | SYNCNEG=2; /* negotiation completed */ | |
1971 | SETRATE(SYNCRATE); | |
1972 | } | |
1973 | break; | |
1974 | ||
1975 | case BUS_DEVICE_RESET: | |
1976 | { | |
1977 | int i; | |
1978 | ||
1979 | for(i=0; i<8; i++) { | |
1980 | HOSTDATA(shpnt)->syncrate[i]=0; | |
1981 | HOSTDATA(shpnt)->syncneg[i]=0; | |
1982 | } | |
1983 | ||
1984 | } | |
1985 | break; | |
1986 | ||
1987 | case EXTENDED_MODIFY_DATA_POINTER: | |
1988 | case EXTENDED_EXTENDED_IDENTIFY: | |
1989 | case EXTENDED_WDTR: | |
1990 | default: | |
1991 | ADDMSGO(MESSAGE_REJECT); | |
1992 | break; | |
1993 | } | |
1994 | break; | |
1995 | } | |
1996 | ||
1997 | MSGILEN=0; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | static void msgi_end(struct Scsi_Host *shpnt) | |
2002 | { | |
2003 | if(MSGILEN>0) | |
2004 | printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN); | |
2005 | ||
2006 | if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) { | |
2007 | DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC)); | |
2008 | SETPORT(SCSISIG, P_MSGI | SIG_ATNO); | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | /* | |
2013 | * message out phase | |
2014 | * | |
2015 | */ | |
2016 | static void msgo_init(struct Scsi_Host *shpnt) | |
2017 | { | |
2018 | if(MSGOLEN==0) { | |
2019 | if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) { | |
2020 | ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); | |
2021 | } else { | |
2022 | printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC)); | |
2023 | ADDMSGO(MESSAGE_REJECT); | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | #if defined(AHA152X_DEBUG) | |
2028 | if(HOSTDATA(shpnt)->debug & debug_msgo) { | |
2029 | int i; | |
2030 | ||
2031 | printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC)); | |
2032 | for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" ")) | |
2033 | ; | |
2034 | printk(")\n"); | |
2035 | } | |
2036 | #endif | |
2037 | } | |
2038 | ||
2039 | /* | |
2040 | * message out phase | |
2041 | * | |
2042 | */ | |
2043 | static void msgo_run(struct Scsi_Host *shpnt) | |
2044 | { | |
2045 | if(MSGO_I==MSGOLEN) | |
2046 | DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN); | |
2047 | ||
2048 | while(MSGO_I<MSGOLEN) { | |
2049 | DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN); | |
2050 | ||
2051 | if(TESTLO(SSTAT0, SPIORDY)) { | |
2052 | DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC)); | |
2053 | return; | |
2054 | } | |
2055 | ||
2056 | if (MSGO_I==MSGOLEN-1) { | |
2057 | /* Leave MESSAGE OUT after transfer */ | |
2058 | SETPORT(SSTAT1, CLRATNO); | |
2059 | } | |
2060 | ||
2061 | ||
2062 | if (MSGO(MSGO_I) & IDENTIFY_BASE) | |
2063 | CURRENT_SC->SCp.phase |= identified; | |
2064 | ||
2065 | if (MSGO(MSGO_I)==ABORT) | |
2066 | CURRENT_SC->SCp.phase |= aborted; | |
2067 | ||
2068 | if (MSGO(MSGO_I)==BUS_DEVICE_RESET) | |
2069 | CURRENT_SC->SCp.phase |= resetted; | |
2070 | ||
2071 | SETPORT(SCSIDAT, MSGO(MSGO_I++)); | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | static void msgo_end(struct Scsi_Host *shpnt) | |
2076 | { | |
2077 | if(MSGO_I<MSGOLEN) { | |
2078 | printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN); | |
2079 | if(SYNCNEG==1) { | |
2080 | printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC)); | |
2081 | SYNCNEG=2; | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | MSGO_I = 0; | |
2086 | MSGOLEN = 0; | |
2087 | } | |
2088 | ||
2089 | /* | |
2090 | * command phase | |
2091 | * | |
2092 | */ | |
2093 | static void cmd_init(struct Scsi_Host *shpnt) | |
2094 | { | |
2095 | if (CURRENT_SC->SCp.sent_command) { | |
2096 | printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC)); | |
2097 | done(shpnt, DID_ERROR << 16); | |
2098 | return; | |
2099 | } | |
2100 | ||
2101 | #if defined(AHA152X_DEBUG) | |
2102 | if (HOSTDATA(shpnt)->debug & debug_cmd) { | |
2103 | printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC)); | |
2104 | __scsi_print_command(CURRENT_SC->cmnd); | |
2105 | } | |
2106 | #endif | |
2107 | ||
2108 | CMD_I=0; | |
2109 | } | |
2110 | ||
2111 | /* | |
2112 | * command phase | |
2113 | * | |
2114 | */ | |
2115 | static void cmd_run(struct Scsi_Host *shpnt) | |
2116 | { | |
2117 | if(CMD_I==CURRENT_SC->cmd_len) { | |
2118 | DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len); | |
2119 | disp_ports(shpnt); | |
2120 | } | |
2121 | ||
2122 | while(CMD_I<CURRENT_SC->cmd_len) { | |
2123 | 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); | |
2124 | ||
2125 | if(TESTLO(SSTAT0, SPIORDY)) { | |
2126 | DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC)); | |
2127 | return; | |
2128 | } | |
2129 | ||
2130 | SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]); | |
2131 | } | |
2132 | } | |
2133 | ||
2134 | static void cmd_end(struct Scsi_Host *shpnt) | |
2135 | { | |
2136 | if(CMD_I<CURRENT_SC->cmd_len) | |
2137 | printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len); | |
2138 | else | |
2139 | CURRENT_SC->SCp.sent_command++; | |
2140 | } | |
2141 | ||
2142 | /* | |
2143 | * status phase | |
2144 | * | |
2145 | */ | |
2146 | static void status_run(struct Scsi_Host *shpnt) | |
2147 | { | |
2148 | if(TESTLO(SSTAT0,SPIORDY)) { | |
2149 | DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC)); | |
2150 | return; | |
2151 | } | |
2152 | ||
2153 | CURRENT_SC->SCp.Status = GETPORT(SCSIDAT); | |
2154 | ||
2155 | #if defined(AHA152X_DEBUG) | |
2156 | if (HOSTDATA(shpnt)->debug & debug_status) { | |
2157 | printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status); | |
2158 | scsi_print_status(CURRENT_SC->SCp.Status); | |
2159 | printk("\n"); | |
2160 | } | |
2161 | #endif | |
2162 | } | |
2163 | ||
2164 | /* | |
2165 | * data in phase | |
2166 | * | |
2167 | */ | |
2168 | static void datai_init(struct Scsi_Host *shpnt) | |
2169 | { | |
2170 | SETPORT(DMACNTRL0, RSTFIFO); | |
2171 | SETPORT(DMACNTRL0, RSTFIFO|ENDMA); | |
2172 | ||
2173 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); | |
2174 | SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); | |
2175 | ||
2176 | SETPORT(SIMODE0, 0); | |
2177 | SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE); | |
2178 | ||
2179 | DATA_LEN=0; | |
2180 | DPRINTK(debug_datai, | |
2181 | DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n", | |
2182 | CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), | |
2183 | scsi_get_resid(CURRENT_SC)); | |
2184 | } | |
2185 | ||
2186 | static void datai_run(struct Scsi_Host *shpnt) | |
2187 | { | |
2188 | unsigned long the_time; | |
2189 | int fifodata, data_count; | |
2190 | ||
2191 | /* | |
2192 | * loop while the phase persists or the fifos are not empty | |
2193 | * | |
2194 | */ | |
2195 | while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) { | |
2196 | /* FIXME: maybe this should be done by setting up | |
2197 | * STCNT to trigger ENSWRAP interrupt, instead of | |
2198 | * polling for DFIFOFULL | |
2199 | */ | |
2200 | the_time=jiffies + 100*HZ; | |
2201 | while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time)) | |
2202 | barrier(); | |
2203 | ||
2204 | if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) { | |
2205 | printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC)); | |
2206 | disp_ports(shpnt); | |
2207 | break; | |
2208 | } | |
2209 | ||
2210 | if(TESTHI(DMASTAT, DFIFOFULL)) { | |
2211 | fifodata = 128; | |
2212 | } else { | |
2213 | the_time=jiffies + 100*HZ; | |
2214 | while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time)) | |
2215 | barrier(); | |
2216 | ||
2217 | if(TESTLO(SSTAT2, SEMPTY)) { | |
2218 | printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC)); | |
2219 | disp_ports(shpnt); | |
2220 | break; | |
2221 | } | |
2222 | ||
2223 | fifodata = GETPORT(FIFOSTAT); | |
2224 | } | |
2225 | ||
2226 | if(CURRENT_SC->SCp.this_residual>0) { | |
2227 | while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) { | |
2228 | data_count = fifodata>CURRENT_SC->SCp.this_residual ? | |
2229 | CURRENT_SC->SCp.this_residual : | |
2230 | fifodata; | |
2231 | fifodata -= data_count; | |
2232 | ||
2233 | if(data_count & 1) { | |
2234 | DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC)); | |
2235 | SETPORT(DMACNTRL0, ENDMA|_8BIT); | |
2236 | *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT); | |
2237 | CURRENT_SC->SCp.this_residual--; | |
2238 | DATA_LEN++; | |
2239 | SETPORT(DMACNTRL0, ENDMA); | |
2240 | } | |
2241 | ||
2242 | if(data_count > 1) { | |
2243 | DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count); | |
2244 | data_count >>= 1; | |
2245 | insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); | |
2246 | CURRENT_SC->SCp.ptr += 2 * data_count; | |
2247 | CURRENT_SC->SCp.this_residual -= 2 * data_count; | |
2248 | DATA_LEN += 2 * data_count; | |
2249 | } | |
2250 | ||
2251 | if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) { | |
2252 | /* advance to next buffer */ | |
2253 | CURRENT_SC->SCp.buffers_residual--; | |
2254 | CURRENT_SC->SCp.buffer++; | |
2255 | CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); | |
2256 | CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; | |
2257 | } | |
2258 | } | |
2259 | } else if(fifodata>0) { | |
2260 | printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT)); | |
2261 | SETPORT(DMACNTRL0, ENDMA|_8BIT); | |
2262 | while(fifodata>0) { | |
2263 | int data; | |
2264 | data=GETPORT(DATAPORT); | |
2265 | DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data); | |
2266 | fifodata--; | |
2267 | DATA_LEN++; | |
2268 | } | |
2269 | SETPORT(DMACNTRL0, ENDMA|_8BIT); | |
2270 | } | |
2271 | } | |
2272 | ||
2273 | if(TESTLO(DMASTAT, INTSTAT) || | |
2274 | TESTLO(DMASTAT, DFIFOEMP) || | |
2275 | TESTLO(SSTAT2, SEMPTY) || | |
2276 | GETPORT(FIFOSTAT)>0) { | |
2277 | /* | |
2278 | * something went wrong, if there's something left in the fifos | |
2279 | * or the phase didn't change | |
2280 | */ | |
2281 | printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC)); | |
2282 | disp_ports(shpnt); | |
2283 | } | |
2284 | ||
2285 | if(DATA_LEN!=GETSTCNT()) { | |
2286 | printk(ERR_LEAD | |
2287 | "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)", | |
2288 | CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT)); | |
2289 | disp_ports(shpnt); | |
2290 | mdelay(10000); | |
2291 | } | |
2292 | } | |
2293 | ||
2294 | static void datai_end(struct Scsi_Host *shpnt) | |
2295 | { | |
2296 | CMD_INC_RESID(CURRENT_SC, -GETSTCNT()); | |
2297 | ||
2298 | DPRINTK(debug_datai, | |
2299 | DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n", | |
2300 | CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), | |
2301 | scsi_get_resid(CURRENT_SC), GETSTCNT()); | |
2302 | ||
2303 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); | |
2304 | SETPORT(DMACNTRL0, 0); | |
2305 | } | |
2306 | ||
2307 | /* | |
2308 | * data out phase | |
2309 | * | |
2310 | */ | |
2311 | static void datao_init(struct Scsi_Host *shpnt) | |
2312 | { | |
2313 | SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO); | |
2314 | SETPORT(DMACNTRL0, WRITE_READ | ENDMA); | |
2315 | ||
2316 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); | |
2317 | SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); | |
2318 | ||
2319 | SETPORT(SIMODE0, 0); | |
2320 | SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE ); | |
2321 | ||
2322 | DATA_LEN = scsi_get_resid(CURRENT_SC); | |
2323 | ||
2324 | DPRINTK(debug_datao, | |
2325 | DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n", | |
2326 | CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), | |
2327 | scsi_get_resid(CURRENT_SC)); | |
2328 | } | |
2329 | ||
2330 | static void datao_run(struct Scsi_Host *shpnt) | |
2331 | { | |
2332 | unsigned long the_time; | |
2333 | int data_count; | |
2334 | ||
2335 | /* until phase changes or all data sent */ | |
2336 | while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) { | |
2337 | data_count = 128; | |
2338 | if(data_count > CURRENT_SC->SCp.this_residual) | |
2339 | data_count=CURRENT_SC->SCp.this_residual; | |
2340 | ||
2341 | if(TESTLO(DMASTAT, DFIFOEMP)) { | |
2342 | printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT)); | |
2343 | disp_ports(shpnt); | |
2344 | break; | |
2345 | } | |
2346 | ||
2347 | if(data_count & 1) { | |
2348 | SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT); | |
2349 | SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++); | |
2350 | CURRENT_SC->SCp.this_residual--; | |
2351 | CMD_INC_RESID(CURRENT_SC, -1); | |
2352 | SETPORT(DMACNTRL0,WRITE_READ|ENDMA); | |
2353 | } | |
2354 | ||
2355 | if(data_count > 1) { | |
2356 | data_count >>= 1; | |
2357 | outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); | |
2358 | CURRENT_SC->SCp.ptr += 2 * data_count; | |
2359 | CURRENT_SC->SCp.this_residual -= 2 * data_count; | |
2360 | CMD_INC_RESID(CURRENT_SC, -2 * data_count); | |
2361 | } | |
2362 | ||
2363 | if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) { | |
2364 | /* advance to next buffer */ | |
2365 | CURRENT_SC->SCp.buffers_residual--; | |
2366 | CURRENT_SC->SCp.buffer++; | |
2367 | CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer); | |
2368 | CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length; | |
2369 | } | |
2370 | ||
2371 | the_time=jiffies + 100*HZ; | |
2372 | while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time)) | |
2373 | barrier(); | |
2374 | ||
2375 | if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) { | |
2376 | printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC)); | |
2377 | disp_ports(shpnt); | |
2378 | break; | |
2379 | } | |
2380 | } | |
2381 | } | |
2382 | ||
2383 | static void datao_end(struct Scsi_Host *shpnt) | |
2384 | { | |
2385 | if(TESTLO(DMASTAT, DFIFOEMP)) { | |
2386 | int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) - | |
2387 | GETSTCNT(); | |
2388 | ||
2389 | DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n", | |
2390 | CMDINFO(CURRENT_SC), | |
2391 | data_count, | |
2392 | DATA_LEN - scsi_get_resid(CURRENT_SC), | |
2393 | GETSTCNT()); | |
2394 | ||
2395 | CMD_INC_RESID(CURRENT_SC, data_count); | |
2396 | ||
2397 | data_count -= CURRENT_SC->SCp.ptr - | |
2398 | SG_ADDRESS(CURRENT_SC->SCp.buffer); | |
2399 | while(data_count>0) { | |
2400 | CURRENT_SC->SCp.buffer--; | |
2401 | CURRENT_SC->SCp.buffers_residual++; | |
2402 | data_count -= CURRENT_SC->SCp.buffer->length; | |
2403 | } | |
2404 | CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - | |
2405 | data_count; | |
2406 | CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + | |
2407 | data_count; | |
2408 | } | |
2409 | ||
2410 | DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n", | |
2411 | CMDINFO(CURRENT_SC), | |
2412 | scsi_bufflen(CURRENT_SC), | |
2413 | scsi_get_resid(CURRENT_SC), | |
2414 | GETSTCNT()); | |
2415 | ||
2416 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); | |
2417 | SETPORT(SXFRCTL0, CH1); | |
2418 | ||
2419 | SETPORT(DMACNTRL0, 0); | |
2420 | } | |
2421 | ||
2422 | /* | |
2423 | * figure out what state we're in | |
2424 | * | |
2425 | */ | |
2426 | static int update_state(struct Scsi_Host *shpnt) | |
2427 | { | |
2428 | int dataphase=0; | |
2429 | unsigned int stat0 = GETPORT(SSTAT0); | |
2430 | unsigned int stat1 = GETPORT(SSTAT1); | |
2431 | ||
2432 | PREVSTATE = STATE; | |
2433 | STATE=unknown; | |
2434 | ||
2435 | if(stat1 & SCSIRSTI) { | |
2436 | STATE=rsti; | |
2437 | SETPORT(SCSISEQ,0); | |
2438 | SETPORT(SSTAT1,SCSIRSTI); | |
2439 | } else if(stat0 & SELDI && PREVSTATE==busfree) { | |
2440 | STATE=seldi; | |
2441 | } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) { | |
2442 | STATE=seldo; | |
2443 | } else if(stat1 & SELTO) { | |
2444 | STATE=selto; | |
2445 | } else if(stat1 & BUSFREE) { | |
2446 | STATE=busfree; | |
2447 | SETPORT(SSTAT1,BUSFREE); | |
2448 | } else if(stat1 & SCSIPERR) { | |
2449 | STATE=parerr; | |
2450 | SETPORT(SSTAT1,SCSIPERR); | |
2451 | } else if(stat1 & REQINIT) { | |
2452 | switch(GETPORT(SCSISIG) & P_MASK) { | |
2453 | case P_MSGI: STATE=msgi; break; | |
2454 | case P_MSGO: STATE=msgo; break; | |
2455 | case P_DATAO: STATE=datao; break; | |
2456 | case P_DATAI: STATE=datai; break; | |
2457 | case P_STATUS: STATE=status; break; | |
2458 | case P_CMD: STATE=cmd; break; | |
2459 | } | |
2460 | dataphase=1; | |
2461 | } | |
2462 | ||
2463 | if((stat0 & SELDI) && STATE!=seldi && !dataphase) { | |
2464 | printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC)); | |
2465 | disp_ports(shpnt); | |
2466 | } | |
2467 | ||
2468 | if(STATE!=PREVSTATE) { | |
2469 | LASTSTATE=PREVSTATE; | |
2470 | } | |
2471 | ||
2472 | return dataphase; | |
2473 | } | |
2474 | ||
2475 | /* | |
2476 | * handle parity error | |
2477 | * | |
2478 | * FIXME: in which phase? | |
2479 | * | |
2480 | */ | |
2481 | static void parerr_run(struct Scsi_Host *shpnt) | |
2482 | { | |
2483 | printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC)); | |
2484 | done(shpnt, DID_PARITY << 16); | |
2485 | } | |
2486 | ||
2487 | /* | |
2488 | * handle reset in | |
2489 | * | |
2490 | */ | |
2491 | static void rsti_run(struct Scsi_Host *shpnt) | |
2492 | { | |
2493 | Scsi_Cmnd *ptr; | |
2494 | ||
2495 | printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO); | |
2496 | ||
2497 | ptr=DISCONNECTED_SC; | |
2498 | while(ptr) { | |
2499 | Scsi_Cmnd *next = SCNEXT(ptr); | |
2500 | ||
2501 | if (!ptr->device->soft_reset) { | |
2502 | remove_SC(&DISCONNECTED_SC, ptr); | |
2503 | ||
2504 | kfree(ptr->host_scribble); | |
2505 | ptr->host_scribble=NULL; | |
2506 | ||
2507 | ptr->result = DID_RESET << 16; | |
2508 | ptr->scsi_done(ptr); | |
2509 | } | |
2510 | ||
2511 | ptr = next; | |
2512 | } | |
2513 | ||
2514 | if(CURRENT_SC && !CURRENT_SC->device->soft_reset) | |
2515 | done(shpnt, DID_RESET << 16 ); | |
2516 | } | |
2517 | ||
2518 | ||
2519 | /* | |
2520 | * bottom-half handler | |
2521 | * | |
2522 | */ | |
2523 | static void is_complete(struct Scsi_Host *shpnt) | |
2524 | { | |
2525 | int dataphase; | |
2526 | unsigned long flags; | |
2527 | int pending; | |
2528 | ||
2529 | if(!shpnt) | |
2530 | return; | |
2531 | ||
2532 | DO_LOCK(flags); | |
2533 | ||
2534 | if( HOSTDATA(shpnt)->service==0 ) { | |
2535 | DO_UNLOCK(flags); | |
2536 | return; | |
2537 | } | |
2538 | ||
2539 | HOSTDATA(shpnt)->service = 0; | |
2540 | ||
2541 | if(HOSTDATA(shpnt)->in_intr) { | |
2542 | DO_UNLOCK(flags); | |
2543 | /* aha152x_error never returns.. */ | |
2544 | aha152x_error(shpnt, "bottom-half already running!?"); | |
2545 | } | |
2546 | HOSTDATA(shpnt)->in_intr++; | |
2547 | ||
2548 | /* | |
2549 | * loop while there are interrupt conditions pending | |
2550 | * | |
2551 | */ | |
2552 | do { | |
2553 | unsigned long start = jiffies; | |
2554 | DO_UNLOCK(flags); | |
2555 | ||
2556 | dataphase=update_state(shpnt); | |
2557 | ||
2558 | DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name); | |
2559 | ||
2560 | /* | |
2561 | * end previous state | |
2562 | * | |
2563 | */ | |
2564 | if(PREVSTATE!=STATE && states[PREVSTATE].end) | |
2565 | states[PREVSTATE].end(shpnt); | |
2566 | ||
2567 | /* | |
2568 | * disable SPIO mode if previous phase used it | |
2569 | * and this one doesn't | |
2570 | * | |
2571 | */ | |
2572 | if(states[PREVSTATE].spio && !states[STATE].spio) { | |
2573 | SETPORT(SXFRCTL0, CH1); | |
2574 | SETPORT(DMACNTRL0, 0); | |
2575 | if(CURRENT_SC) | |
2576 | CURRENT_SC->SCp.phase &= ~spiordy; | |
2577 | } | |
2578 | ||
2579 | /* | |
2580 | * accept current dataphase phase | |
2581 | * | |
2582 | */ | |
2583 | if(dataphase) { | |
2584 | SETPORT(SSTAT0, REQINIT); | |
2585 | SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK); | |
2586 | SETPORT(SSTAT1, PHASECHG); | |
2587 | } | |
2588 | ||
2589 | /* | |
2590 | * enable SPIO mode if previous didn't use it | |
2591 | * and this one does | |
2592 | * | |
2593 | */ | |
2594 | if(!states[PREVSTATE].spio && states[STATE].spio) { | |
2595 | SETPORT(DMACNTRL0, 0); | |
2596 | SETPORT(SXFRCTL0, CH1|SPIOEN); | |
2597 | if(CURRENT_SC) | |
2598 | CURRENT_SC->SCp.phase |= spiordy; | |
2599 | } | |
2600 | ||
2601 | /* | |
2602 | * initialize for new state | |
2603 | * | |
2604 | */ | |
2605 | if(PREVSTATE!=STATE && states[STATE].init) | |
2606 | states[STATE].init(shpnt); | |
2607 | ||
2608 | /* | |
2609 | * handle current state | |
2610 | * | |
2611 | */ | |
2612 | if(states[STATE].run) | |
2613 | states[STATE].run(shpnt); | |
2614 | else | |
2615 | printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE); | |
2616 | ||
2617 | /* | |
2618 | * setup controller to interrupt on | |
2619 | * the next expected condition and | |
2620 | * loop if it's already there | |
2621 | * | |
2622 | */ | |
2623 | DO_LOCK(flags); | |
2624 | pending=setup_expected_interrupts(shpnt); | |
2625 | #if defined(AHA152X_STAT) | |
2626 | HOSTDATA(shpnt)->count[STATE]++; | |
2627 | if(PREVSTATE!=STATE) | |
2628 | HOSTDATA(shpnt)->count_trans[STATE]++; | |
2629 | HOSTDATA(shpnt)->time[STATE] += jiffies-start; | |
2630 | #endif | |
2631 | ||
2632 | DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name); | |
2633 | } while(pending); | |
2634 | ||
2635 | /* | |
2636 | * enable interrupts and leave bottom-half | |
2637 | * | |
2638 | */ | |
2639 | HOSTDATA(shpnt)->in_intr--; | |
2640 | SETBITS(DMACNTRL0, INTEN); | |
2641 | DO_UNLOCK(flags); | |
2642 | } | |
2643 | ||
2644 | ||
2645 | /* | |
2646 | * Dump the current driver status and panic | |
2647 | */ | |
2648 | static void aha152x_error(struct Scsi_Host *shpnt, char *msg) | |
2649 | { | |
2650 | printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg); | |
2651 | show_queues(shpnt); | |
2652 | panic("aha152x panic\n"); | |
2653 | } | |
2654 | ||
2655 | /* | |
2656 | * Display registers of AIC-6260 | |
2657 | */ | |
2658 | static void disp_ports(struct Scsi_Host *shpnt) | |
2659 | { | |
2660 | #if defined(AHA152X_DEBUG) | |
2661 | int s; | |
2662 | ||
2663 | printk("\n%s: %s(%s) ", | |
2664 | CURRENT_SC ? "busy" : "waiting", | |
2665 | states[STATE].name, | |
2666 | states[PREVSTATE].name); | |
2667 | ||
2668 | s = GETPORT(SCSISEQ); | |
2669 | printk("SCSISEQ( "); | |
2670 | if (s & TEMODEO) | |
2671 | printk("TARGET MODE "); | |
2672 | if (s & ENSELO) | |
2673 | printk("SELO "); | |
2674 | if (s & ENSELI) | |
2675 | printk("SELI "); | |
2676 | if (s & ENRESELI) | |
2677 | printk("RESELI "); | |
2678 | if (s & ENAUTOATNO) | |
2679 | printk("AUTOATNO "); | |
2680 | if (s & ENAUTOATNI) | |
2681 | printk("AUTOATNI "); | |
2682 | if (s & ENAUTOATNP) | |
2683 | printk("AUTOATNP "); | |
2684 | if (s & SCSIRSTO) | |
2685 | printk("SCSIRSTO "); | |
2686 | printk(");"); | |
2687 | ||
2688 | printk(" SCSISIG("); | |
2689 | s = GETPORT(SCSISIG); | |
2690 | switch (s & P_MASK) { | |
2691 | case P_DATAO: | |
2692 | printk("DATA OUT"); | |
2693 | break; | |
2694 | case P_DATAI: | |
2695 | printk("DATA IN"); | |
2696 | break; | |
2697 | case P_CMD: | |
2698 | printk("COMMAND"); | |
2699 | break; | |
2700 | case P_STATUS: | |
2701 | printk("STATUS"); | |
2702 | break; | |
2703 | case P_MSGO: | |
2704 | printk("MESSAGE OUT"); | |
2705 | break; | |
2706 | case P_MSGI: | |
2707 | printk("MESSAGE IN"); | |
2708 | break; | |
2709 | default: | |
2710 | printk("*invalid*"); | |
2711 | break; | |
2712 | } | |
2713 | ||
2714 | printk("); "); | |
2715 | ||
2716 | printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo"); | |
2717 | ||
2718 | printk("SSTAT( "); | |
2719 | s = GETPORT(SSTAT0); | |
2720 | if (s & TARGET) | |
2721 | printk("TARGET "); | |
2722 | if (s & SELDO) | |
2723 | printk("SELDO "); | |
2724 | if (s & SELDI) | |
2725 | printk("SELDI "); | |
2726 | if (s & SELINGO) | |
2727 | printk("SELINGO "); | |
2728 | if (s & SWRAP) | |
2729 | printk("SWRAP "); | |
2730 | if (s & SDONE) | |
2731 | printk("SDONE "); | |
2732 | if (s & SPIORDY) | |
2733 | printk("SPIORDY "); | |
2734 | if (s & DMADONE) | |
2735 | printk("DMADONE "); | |
2736 | ||
2737 | s = GETPORT(SSTAT1); | |
2738 | if (s & SELTO) | |
2739 | printk("SELTO "); | |
2740 | if (s & ATNTARG) | |
2741 | printk("ATNTARG "); | |
2742 | if (s & SCSIRSTI) | |
2743 | printk("SCSIRSTI "); | |
2744 | if (s & PHASEMIS) | |
2745 | printk("PHASEMIS "); | |
2746 | if (s & BUSFREE) | |
2747 | printk("BUSFREE "); | |
2748 | if (s & SCSIPERR) | |
2749 | printk("SCSIPERR "); | |
2750 | if (s & PHASECHG) | |
2751 | printk("PHASECHG "); | |
2752 | if (s & REQINIT) | |
2753 | printk("REQINIT "); | |
2754 | printk("); "); | |
2755 | ||
2756 | ||
2757 | printk("SSTAT( "); | |
2758 | ||
2759 | s = GETPORT(SSTAT0) & GETPORT(SIMODE0); | |
2760 | ||
2761 | if (s & TARGET) | |
2762 | printk("TARGET "); | |
2763 | if (s & SELDO) | |
2764 | printk("SELDO "); | |
2765 | if (s & SELDI) | |
2766 | printk("SELDI "); | |
2767 | if (s & SELINGO) | |
2768 | printk("SELINGO "); | |
2769 | if (s & SWRAP) | |
2770 | printk("SWRAP "); | |
2771 | if (s & SDONE) | |
2772 | printk("SDONE "); | |
2773 | if (s & SPIORDY) | |
2774 | printk("SPIORDY "); | |
2775 | if (s & DMADONE) | |
2776 | printk("DMADONE "); | |
2777 | ||
2778 | s = GETPORT(SSTAT1) & GETPORT(SIMODE1); | |
2779 | ||
2780 | if (s & SELTO) | |
2781 | printk("SELTO "); | |
2782 | if (s & ATNTARG) | |
2783 | printk("ATNTARG "); | |
2784 | if (s & SCSIRSTI) | |
2785 | printk("SCSIRSTI "); | |
2786 | if (s & PHASEMIS) | |
2787 | printk("PHASEMIS "); | |
2788 | if (s & BUSFREE) | |
2789 | printk("BUSFREE "); | |
2790 | if (s & SCSIPERR) | |
2791 | printk("SCSIPERR "); | |
2792 | if (s & PHASECHG) | |
2793 | printk("PHASECHG "); | |
2794 | if (s & REQINIT) | |
2795 | printk("REQINIT "); | |
2796 | printk("); "); | |
2797 | ||
2798 | printk("SXFRCTL0( "); | |
2799 | ||
2800 | s = GETPORT(SXFRCTL0); | |
2801 | if (s & SCSIEN) | |
2802 | printk("SCSIEN "); | |
2803 | if (s & DMAEN) | |
2804 | printk("DMAEN "); | |
2805 | if (s & CH1) | |
2806 | printk("CH1 "); | |
2807 | if (s & CLRSTCNT) | |
2808 | printk("CLRSTCNT "); | |
2809 | if (s & SPIOEN) | |
2810 | printk("SPIOEN "); | |
2811 | if (s & CLRCH1) | |
2812 | printk("CLRCH1 "); | |
2813 | printk("); "); | |
2814 | ||
2815 | printk("SIGNAL( "); | |
2816 | ||
2817 | s = GETPORT(SCSISIG); | |
2818 | if (s & SIG_ATNI) | |
2819 | printk("ATNI "); | |
2820 | if (s & SIG_SELI) | |
2821 | printk("SELI "); | |
2822 | if (s & SIG_BSYI) | |
2823 | printk("BSYI "); | |
2824 | if (s & SIG_REQI) | |
2825 | printk("REQI "); | |
2826 | if (s & SIG_ACKI) | |
2827 | printk("ACKI "); | |
2828 | printk("); "); | |
2829 | ||
2830 | printk("SELID (%02x), ", GETPORT(SELID)); | |
2831 | ||
2832 | printk("STCNT (%d), ", GETSTCNT()); | |
2833 | ||
2834 | printk("SSTAT2( "); | |
2835 | ||
2836 | s = GETPORT(SSTAT2); | |
2837 | if (s & SOFFSET) | |
2838 | printk("SOFFSET "); | |
2839 | if (s & SEMPTY) | |
2840 | printk("SEMPTY "); | |
2841 | if (s & SFULL) | |
2842 | printk("SFULL "); | |
2843 | printk("); SFCNT (%d); ", s & (SFULL | SFCNT)); | |
2844 | ||
2845 | s = GETPORT(SSTAT3); | |
2846 | printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f); | |
2847 | ||
2848 | printk("SSTAT4( "); | |
2849 | s = GETPORT(SSTAT4); | |
2850 | if (s & SYNCERR) | |
2851 | printk("SYNCERR "); | |
2852 | if (s & FWERR) | |
2853 | printk("FWERR "); | |
2854 | if (s & FRERR) | |
2855 | printk("FRERR "); | |
2856 | printk("); "); | |
2857 | ||
2858 | printk("DMACNTRL0( "); | |
2859 | s = GETPORT(DMACNTRL0); | |
2860 | printk("%s ", s & _8BIT ? "8BIT" : "16BIT"); | |
2861 | printk("%s ", s & DMA ? "DMA" : "PIO"); | |
2862 | printk("%s ", s & WRITE_READ ? "WRITE" : "READ"); | |
2863 | if (s & ENDMA) | |
2864 | printk("ENDMA "); | |
2865 | if (s & INTEN) | |
2866 | printk("INTEN "); | |
2867 | if (s & RSTFIFO) | |
2868 | printk("RSTFIFO "); | |
2869 | if (s & SWINT) | |
2870 | printk("SWINT "); | |
2871 | printk("); "); | |
2872 | ||
2873 | printk("DMASTAT( "); | |
2874 | s = GETPORT(DMASTAT); | |
2875 | if (s & ATDONE) | |
2876 | printk("ATDONE "); | |
2877 | if (s & WORDRDY) | |
2878 | printk("WORDRDY "); | |
2879 | if (s & DFIFOFULL) | |
2880 | printk("DFIFOFULL "); | |
2881 | if (s & DFIFOEMP) | |
2882 | printk("DFIFOEMP "); | |
2883 | printk(")\n"); | |
2884 | #endif | |
2885 | } | |
2886 | ||
2887 | /* | |
2888 | * display enabled interrupts | |
2889 | */ | |
2890 | static void disp_enintr(struct Scsi_Host *shpnt) | |
2891 | { | |
2892 | int s; | |
2893 | ||
2894 | printk(KERN_DEBUG "enabled interrupts ( "); | |
2895 | ||
2896 | s = GETPORT(SIMODE0); | |
2897 | if (s & ENSELDO) | |
2898 | printk("ENSELDO "); | |
2899 | if (s & ENSELDI) | |
2900 | printk("ENSELDI "); | |
2901 | if (s & ENSELINGO) | |
2902 | printk("ENSELINGO "); | |
2903 | if (s & ENSWRAP) | |
2904 | printk("ENSWRAP "); | |
2905 | if (s & ENSDONE) | |
2906 | printk("ENSDONE "); | |
2907 | if (s & ENSPIORDY) | |
2908 | printk("ENSPIORDY "); | |
2909 | if (s & ENDMADONE) | |
2910 | printk("ENDMADONE "); | |
2911 | ||
2912 | s = GETPORT(SIMODE1); | |
2913 | if (s & ENSELTIMO) | |
2914 | printk("ENSELTIMO "); | |
2915 | if (s & ENATNTARG) | |
2916 | printk("ENATNTARG "); | |
2917 | if (s & ENPHASEMIS) | |
2918 | printk("ENPHASEMIS "); | |
2919 | if (s & ENBUSFREE) | |
2920 | printk("ENBUSFREE "); | |
2921 | if (s & ENSCSIPERR) | |
2922 | printk("ENSCSIPERR "); | |
2923 | if (s & ENPHASECHG) | |
2924 | printk("ENPHASECHG "); | |
2925 | if (s & ENREQINIT) | |
2926 | printk("ENREQINIT "); | |
2927 | printk(")\n"); | |
2928 | } | |
2929 | ||
2930 | /* | |
2931 | * Show the command data of a command | |
2932 | */ | |
2933 | static void show_command(Scsi_Cmnd *ptr) | |
2934 | { | |
2935 | scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr); | |
2936 | ||
2937 | __scsi_print_command(ptr->cmnd); | |
2938 | ||
2939 | printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |", | |
2940 | scsi_bufflen(ptr), scsi_get_resid(ptr)); | |
2941 | ||
2942 | if (ptr->SCp.phase & not_issued) | |
2943 | printk("not issued|"); | |
2944 | if (ptr->SCp.phase & selecting) | |
2945 | printk("selecting|"); | |
2946 | if (ptr->SCp.phase & identified) | |
2947 | printk("identified|"); | |
2948 | if (ptr->SCp.phase & disconnected) | |
2949 | printk("disconnected|"); | |
2950 | if (ptr->SCp.phase & completed) | |
2951 | printk("completed|"); | |
2952 | if (ptr->SCp.phase & spiordy) | |
2953 | printk("spiordy|"); | |
2954 | if (ptr->SCp.phase & syncneg) | |
2955 | printk("syncneg|"); | |
2956 | if (ptr->SCp.phase & aborted) | |
2957 | printk("aborted|"); | |
2958 | if (ptr->SCp.phase & resetted) | |
2959 | printk("resetted|"); | |
2960 | if( SCDATA(ptr) ) { | |
2961 | printk("; next=0x%p\n", SCNEXT(ptr)); | |
2962 | } else { | |
2963 | printk("; next=(host scribble NULL)\n"); | |
2964 | } | |
2965 | } | |
2966 | ||
2967 | /* | |
2968 | * Dump the queued data | |
2969 | */ | |
2970 | static void show_queues(struct Scsi_Host *shpnt) | |
2971 | { | |
2972 | Scsi_Cmnd *ptr; | |
2973 | unsigned long flags; | |
2974 | ||
2975 | DO_LOCK(flags); | |
2976 | printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n"); | |
2977 | for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) | |
2978 | show_command(ptr); | |
2979 | DO_UNLOCK(flags); | |
2980 | ||
2981 | printk(KERN_DEBUG "current_SC:\n"); | |
2982 | if (CURRENT_SC) | |
2983 | show_command(CURRENT_SC); | |
2984 | else | |
2985 | printk(KERN_DEBUG "none\n"); | |
2986 | ||
2987 | printk(KERN_DEBUG "disconnected_SC:\n"); | |
2988 | for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL) | |
2989 | show_command(ptr); | |
2990 | ||
2991 | disp_ports(shpnt); | |
2992 | disp_enintr(shpnt); | |
2993 | } | |
2994 | ||
2995 | #undef SPRINTF | |
2996 | #define SPRINTF(args...) pos += sprintf(pos, ## args) | |
2997 | ||
2998 | static int get_command(char *pos, Scsi_Cmnd * ptr) | |
2999 | { | |
3000 | char *start = pos; | |
3001 | int i; | |
3002 | ||
3003 | SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ", | |
3004 | (unsigned int) ptr, ptr->device->id, ptr->device->lun); | |
3005 | ||
3006 | for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++) | |
3007 | SPRINTF("0x%02x ", ptr->cmnd[i]); | |
3008 | ||
3009 | SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |", | |
3010 | scsi_get_resid(ptr), ptr->SCp.this_residual, | |
3011 | ptr->SCp.buffers_residual); | |
3012 | ||
3013 | if (ptr->SCp.phase & not_issued) | |
3014 | SPRINTF("not issued|"); | |
3015 | if (ptr->SCp.phase & selecting) | |
3016 | SPRINTF("selecting|"); | |
3017 | if (ptr->SCp.phase & disconnected) | |
3018 | SPRINTF("disconnected|"); | |
3019 | if (ptr->SCp.phase & aborted) | |
3020 | SPRINTF("aborted|"); | |
3021 | if (ptr->SCp.phase & identified) | |
3022 | SPRINTF("identified|"); | |
3023 | if (ptr->SCp.phase & completed) | |
3024 | SPRINTF("completed|"); | |
3025 | if (ptr->SCp.phase & spiordy) | |
3026 | SPRINTF("spiordy|"); | |
3027 | if (ptr->SCp.phase & syncneg) | |
3028 | SPRINTF("syncneg|"); | |
3029 | SPRINTF("; next=0x%p\n", SCNEXT(ptr)); | |
3030 | ||
3031 | return (pos - start); | |
3032 | } | |
3033 | ||
3034 | static int get_ports(struct Scsi_Host *shpnt, char *pos) | |
3035 | { | |
3036 | char *start = pos; | |
3037 | int s; | |
3038 | ||
3039 | SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name); | |
3040 | ||
3041 | s = GETPORT(SCSISEQ); | |
3042 | SPRINTF("SCSISEQ( "); | |
3043 | if (s & TEMODEO) | |
3044 | SPRINTF("TARGET MODE "); | |
3045 | if (s & ENSELO) | |
3046 | SPRINTF("SELO "); | |
3047 | if (s & ENSELI) | |
3048 | SPRINTF("SELI "); | |
3049 | if (s & ENRESELI) | |
3050 | SPRINTF("RESELI "); | |
3051 | if (s & ENAUTOATNO) | |
3052 | SPRINTF("AUTOATNO "); | |
3053 | if (s & ENAUTOATNI) | |
3054 | SPRINTF("AUTOATNI "); | |
3055 | if (s & ENAUTOATNP) | |
3056 | SPRINTF("AUTOATNP "); | |
3057 | if (s & SCSIRSTO) | |
3058 | SPRINTF("SCSIRSTO "); | |
3059 | SPRINTF(");"); | |
3060 | ||
3061 | SPRINTF(" SCSISIG("); | |
3062 | s = GETPORT(SCSISIG); | |
3063 | switch (s & P_MASK) { | |
3064 | case P_DATAO: | |
3065 | SPRINTF("DATA OUT"); | |
3066 | break; | |
3067 | case P_DATAI: | |
3068 | SPRINTF("DATA IN"); | |
3069 | break; | |
3070 | case P_CMD: | |
3071 | SPRINTF("COMMAND"); | |
3072 | break; | |
3073 | case P_STATUS: | |
3074 | SPRINTF("STATUS"); | |
3075 | break; | |
3076 | case P_MSGO: | |
3077 | SPRINTF("MESSAGE OUT"); | |
3078 | break; | |
3079 | case P_MSGI: | |
3080 | SPRINTF("MESSAGE IN"); | |
3081 | break; | |
3082 | default: | |
3083 | SPRINTF("*invalid*"); | |
3084 | break; | |
3085 | } | |
3086 | ||
3087 | SPRINTF("); "); | |
3088 | ||
3089 | SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo"); | |
3090 | ||
3091 | SPRINTF("SSTAT( "); | |
3092 | s = GETPORT(SSTAT0); | |
3093 | if (s & TARGET) | |
3094 | SPRINTF("TARGET "); | |
3095 | if (s & SELDO) | |
3096 | SPRINTF("SELDO "); | |
3097 | if (s & SELDI) | |
3098 | SPRINTF("SELDI "); | |
3099 | if (s & SELINGO) | |
3100 | SPRINTF("SELINGO "); | |
3101 | if (s & SWRAP) | |
3102 | SPRINTF("SWRAP "); | |
3103 | if (s & SDONE) | |
3104 | SPRINTF("SDONE "); | |
3105 | if (s & SPIORDY) | |
3106 | SPRINTF("SPIORDY "); | |
3107 | if (s & DMADONE) | |
3108 | SPRINTF("DMADONE "); | |
3109 | ||
3110 | s = GETPORT(SSTAT1); | |
3111 | if (s & SELTO) | |
3112 | SPRINTF("SELTO "); | |
3113 | if (s & ATNTARG) | |
3114 | SPRINTF("ATNTARG "); | |
3115 | if (s & SCSIRSTI) | |
3116 | SPRINTF("SCSIRSTI "); | |
3117 | if (s & PHASEMIS) | |
3118 | SPRINTF("PHASEMIS "); | |
3119 | if (s & BUSFREE) | |
3120 | SPRINTF("BUSFREE "); | |
3121 | if (s & SCSIPERR) | |
3122 | SPRINTF("SCSIPERR "); | |
3123 | if (s & PHASECHG) | |
3124 | SPRINTF("PHASECHG "); | |
3125 | if (s & REQINIT) | |
3126 | SPRINTF("REQINIT "); | |
3127 | SPRINTF("); "); | |
3128 | ||
3129 | ||
3130 | SPRINTF("SSTAT( "); | |
3131 | ||
3132 | s = GETPORT(SSTAT0) & GETPORT(SIMODE0); | |
3133 | ||
3134 | if (s & TARGET) | |
3135 | SPRINTF("TARGET "); | |
3136 | if (s & SELDO) | |
3137 | SPRINTF("SELDO "); | |
3138 | if (s & SELDI) | |
3139 | SPRINTF("SELDI "); | |
3140 | if (s & SELINGO) | |
3141 | SPRINTF("SELINGO "); | |
3142 | if (s & SWRAP) | |
3143 | SPRINTF("SWRAP "); | |
3144 | if (s & SDONE) | |
3145 | SPRINTF("SDONE "); | |
3146 | if (s & SPIORDY) | |
3147 | SPRINTF("SPIORDY "); | |
3148 | if (s & DMADONE) | |
3149 | SPRINTF("DMADONE "); | |
3150 | ||
3151 | s = GETPORT(SSTAT1) & GETPORT(SIMODE1); | |
3152 | ||
3153 | if (s & SELTO) | |
3154 | SPRINTF("SELTO "); | |
3155 | if (s & ATNTARG) | |
3156 | SPRINTF("ATNTARG "); | |
3157 | if (s & SCSIRSTI) | |
3158 | SPRINTF("SCSIRSTI "); | |
3159 | if (s & PHASEMIS) | |
3160 | SPRINTF("PHASEMIS "); | |
3161 | if (s & BUSFREE) | |
3162 | SPRINTF("BUSFREE "); | |
3163 | if (s & SCSIPERR) | |
3164 | SPRINTF("SCSIPERR "); | |
3165 | if (s & PHASECHG) | |
3166 | SPRINTF("PHASECHG "); | |
3167 | if (s & REQINIT) | |
3168 | SPRINTF("REQINIT "); | |
3169 | SPRINTF("); "); | |
3170 | ||
3171 | SPRINTF("SXFRCTL0( "); | |
3172 | ||
3173 | s = GETPORT(SXFRCTL0); | |
3174 | if (s & SCSIEN) | |
3175 | SPRINTF("SCSIEN "); | |
3176 | if (s & DMAEN) | |
3177 | SPRINTF("DMAEN "); | |
3178 | if (s & CH1) | |
3179 | SPRINTF("CH1 "); | |
3180 | if (s & CLRSTCNT) | |
3181 | SPRINTF("CLRSTCNT "); | |
3182 | if (s & SPIOEN) | |
3183 | SPRINTF("SPIOEN "); | |
3184 | if (s & CLRCH1) | |
3185 | SPRINTF("CLRCH1 "); | |
3186 | SPRINTF("); "); | |
3187 | ||
3188 | SPRINTF("SIGNAL( "); | |
3189 | ||
3190 | s = GETPORT(SCSISIG); | |
3191 | if (s & SIG_ATNI) | |
3192 | SPRINTF("ATNI "); | |
3193 | if (s & SIG_SELI) | |
3194 | SPRINTF("SELI "); | |
3195 | if (s & SIG_BSYI) | |
3196 | SPRINTF("BSYI "); | |
3197 | if (s & SIG_REQI) | |
3198 | SPRINTF("REQI "); | |
3199 | if (s & SIG_ACKI) | |
3200 | SPRINTF("ACKI "); | |
3201 | SPRINTF("); "); | |
3202 | ||
3203 | SPRINTF("SELID(%02x), ", GETPORT(SELID)); | |
3204 | ||
3205 | SPRINTF("STCNT(%d), ", GETSTCNT()); | |
3206 | ||
3207 | SPRINTF("SSTAT2( "); | |
3208 | ||
3209 | s = GETPORT(SSTAT2); | |
3210 | if (s & SOFFSET) | |
3211 | SPRINTF("SOFFSET "); | |
3212 | if (s & SEMPTY) | |
3213 | SPRINTF("SEMPTY "); | |
3214 | if (s & SFULL) | |
3215 | SPRINTF("SFULL "); | |
3216 | SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT)); | |
3217 | ||
3218 | s = GETPORT(SSTAT3); | |
3219 | SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f); | |
3220 | ||
3221 | SPRINTF("SSTAT4( "); | |
3222 | s = GETPORT(SSTAT4); | |
3223 | if (s & SYNCERR) | |
3224 | SPRINTF("SYNCERR "); | |
3225 | if (s & FWERR) | |
3226 | SPRINTF("FWERR "); | |
3227 | if (s & FRERR) | |
3228 | SPRINTF("FRERR "); | |
3229 | SPRINTF("); "); | |
3230 | ||
3231 | SPRINTF("DMACNTRL0( "); | |
3232 | s = GETPORT(DMACNTRL0); | |
3233 | SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT"); | |
3234 | SPRINTF("%s ", s & DMA ? "DMA" : "PIO"); | |
3235 | SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ"); | |
3236 | if (s & ENDMA) | |
3237 | SPRINTF("ENDMA "); | |
3238 | if (s & INTEN) | |
3239 | SPRINTF("INTEN "); | |
3240 | if (s & RSTFIFO) | |
3241 | SPRINTF("RSTFIFO "); | |
3242 | if (s & SWINT) | |
3243 | SPRINTF("SWINT "); | |
3244 | SPRINTF("); "); | |
3245 | ||
3246 | SPRINTF("DMASTAT( "); | |
3247 | s = GETPORT(DMASTAT); | |
3248 | if (s & ATDONE) | |
3249 | SPRINTF("ATDONE "); | |
3250 | if (s & WORDRDY) | |
3251 | SPRINTF("WORDRDY "); | |
3252 | if (s & DFIFOFULL) | |
3253 | SPRINTF("DFIFOFULL "); | |
3254 | if (s & DFIFOEMP) | |
3255 | SPRINTF("DFIFOEMP "); | |
3256 | SPRINTF(")\n"); | |
3257 | ||
3258 | SPRINTF("enabled interrupts( "); | |
3259 | ||
3260 | s = GETPORT(SIMODE0); | |
3261 | if (s & ENSELDO) | |
3262 | SPRINTF("ENSELDO "); | |
3263 | if (s & ENSELDI) | |
3264 | SPRINTF("ENSELDI "); | |
3265 | if (s & ENSELINGO) | |
3266 | SPRINTF("ENSELINGO "); | |
3267 | if (s & ENSWRAP) | |
3268 | SPRINTF("ENSWRAP "); | |
3269 | if (s & ENSDONE) | |
3270 | SPRINTF("ENSDONE "); | |
3271 | if (s & ENSPIORDY) | |
3272 | SPRINTF("ENSPIORDY "); | |
3273 | if (s & ENDMADONE) | |
3274 | SPRINTF("ENDMADONE "); | |
3275 | ||
3276 | s = GETPORT(SIMODE1); | |
3277 | if (s & ENSELTIMO) | |
3278 | SPRINTF("ENSELTIMO "); | |
3279 | if (s & ENATNTARG) | |
3280 | SPRINTF("ENATNTARG "); | |
3281 | if (s & ENPHASEMIS) | |
3282 | SPRINTF("ENPHASEMIS "); | |
3283 | if (s & ENBUSFREE) | |
3284 | SPRINTF("ENBUSFREE "); | |
3285 | if (s & ENSCSIPERR) | |
3286 | SPRINTF("ENSCSIPERR "); | |
3287 | if (s & ENPHASECHG) | |
3288 | SPRINTF("ENPHASECHG "); | |
3289 | if (s & ENREQINIT) | |
3290 | SPRINTF("ENREQINIT "); | |
3291 | SPRINTF(")\n"); | |
3292 | ||
3293 | return (pos - start); | |
3294 | } | |
3295 | ||
3296 | static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt) | |
3297 | { | |
3298 | if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0) | |
3299 | return -EINVAL; | |
3300 | ||
3301 | #if defined(AHA152X_DEBUG) | |
3302 | if(length>14 && strncmp("debug ", buffer+8, 6)==0) { | |
3303 | int debug = HOSTDATA(shpnt)->debug; | |
3304 | ||
3305 | HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0); | |
3306 | ||
3307 | printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug); | |
3308 | } else | |
3309 | #endif | |
3310 | #if defined(AHA152X_STAT) | |
3311 | if(length>13 && strncmp("reset", buffer+8, 5)==0) { | |
3312 | int i; | |
3313 | ||
3314 | HOSTDATA(shpnt)->total_commands=0; | |
3315 | HOSTDATA(shpnt)->disconnections=0; | |
3316 | HOSTDATA(shpnt)->busfree_without_any_action=0; | |
3317 | HOSTDATA(shpnt)->busfree_without_old_command=0; | |
3318 | HOSTDATA(shpnt)->busfree_without_new_command=0; | |
3319 | HOSTDATA(shpnt)->busfree_without_done_command=0; | |
3320 | HOSTDATA(shpnt)->busfree_with_check_condition=0; | |
3321 | for (i = idle; i<maxstate; i++) { | |
3322 | HOSTDATA(shpnt)->count[i]=0; | |
3323 | HOSTDATA(shpnt)->count_trans[i]=0; | |
3324 | HOSTDATA(shpnt)->time[i]=0; | |
3325 | } | |
3326 | ||
3327 | printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO); | |
3328 | ||
3329 | } else | |
3330 | #endif | |
3331 | { | |
3332 | return -EINVAL; | |
3333 | } | |
3334 | ||
3335 | ||
3336 | return length; | |
3337 | } | |
3338 | ||
3339 | #undef SPRINTF | |
3340 | #define SPRINTF(args...) \ | |
3341 | do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0) | |
3342 | ||
3343 | static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, | |
3344 | off_t offset, int length, int inout) | |
3345 | { | |
3346 | int i; | |
3347 | char *pos = buffer; | |
3348 | Scsi_Cmnd *ptr; | |
3349 | unsigned long flags; | |
3350 | int thislength; | |
3351 | ||
3352 | DPRINTK(debug_procinfo, | |
3353 | KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n", | |
3354 | buffer, offset, length, shpnt->host_no, inout); | |
3355 | ||
3356 | ||
3357 | if (inout) | |
3358 | return aha152x_set_info(buffer, length, shpnt); | |
3359 | ||
3360 | SPRINTF(AHA152X_REVID "\n"); | |
3361 | ||
3362 | SPRINTF("ioports 0x%04lx to 0x%04lx\n", | |
3363 | shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1); | |
3364 | SPRINTF("interrupt 0x%02x\n", shpnt->irq); | |
3365 | SPRINTF("disconnection/reconnection %s\n", | |
3366 | RECONNECT ? "enabled" : "disabled"); | |
3367 | SPRINTF("parity checking %s\n", | |
3368 | PARITY ? "enabled" : "disabled"); | |
3369 | SPRINTF("synchronous transfers %s\n", | |
3370 | SYNCHRONOUS ? "enabled" : "disabled"); | |
3371 | SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands); | |
3372 | ||
3373 | if(SYNCHRONOUS) { | |
3374 | SPRINTF("synchronously operating targets (tick=50 ns):\n"); | |
3375 | for (i = 0; i < 8; i++) | |
3376 | if (HOSTDATA(shpnt)->syncrate[i] & 0x7f) | |
3377 | SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n", | |
3378 | i, | |
3379 | (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2), | |
3380 | (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50, | |
3381 | HOSTDATA(shpnt)->syncrate[i] & 0x0f); | |
3382 | } | |
3383 | #if defined(AHA152X_DEBUG) | |
3384 | #define PDEBUG(flags,txt) \ | |
3385 | if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt); | |
3386 | ||
3387 | SPRINTF("enabled debugging options: "); | |
3388 | ||
3389 | PDEBUG(debug_procinfo, "procinfo"); | |
3390 | PDEBUG(debug_queue, "queue"); | |
3391 | PDEBUG(debug_intr, "interrupt"); | |
3392 | PDEBUG(debug_selection, "selection"); | |
3393 | PDEBUG(debug_msgo, "message out"); | |
3394 | PDEBUG(debug_msgi, "message in"); | |
3395 | PDEBUG(debug_status, "status"); | |
3396 | PDEBUG(debug_cmd, "command"); | |
3397 | PDEBUG(debug_datai, "data in"); | |
3398 | PDEBUG(debug_datao, "data out"); | |
3399 | PDEBUG(debug_eh, "eh"); | |
3400 | PDEBUG(debug_locking, "locks"); | |
3401 | PDEBUG(debug_phases, "phases"); | |
3402 | ||
3403 | SPRINTF("\n"); | |
3404 | #endif | |
3405 | ||
3406 | SPRINTF("\nqueue status:\n"); | |
3407 | DO_LOCK(flags); | |
3408 | if (ISSUE_SC) { | |
3409 | SPRINTF("not yet issued commands:\n"); | |
3410 | for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) | |
3411 | pos += get_command(pos, ptr); | |
3412 | } else | |
3413 | SPRINTF("no not yet issued commands\n"); | |
3414 | DO_UNLOCK(flags); | |
3415 | ||
3416 | if (CURRENT_SC) { | |
3417 | SPRINTF("current command:\n"); | |
3418 | pos += get_command(pos, CURRENT_SC); | |
3419 | } else | |
3420 | SPRINTF("no current command\n"); | |
3421 | ||
3422 | if (DISCONNECTED_SC) { | |
3423 | SPRINTF("disconnected commands:\n"); | |
3424 | for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr)) | |
3425 | pos += get_command(pos, ptr); | |
3426 | } else | |
3427 | SPRINTF("no disconnected commands\n"); | |
3428 | ||
3429 | pos += get_ports(shpnt, pos); | |
3430 | ||
3431 | #if defined(AHA152X_STAT) | |
3432 | SPRINTF("statistics:\n" | |
3433 | "total commands: %d\n" | |
3434 | "disconnections: %d\n" | |
3435 | "busfree with check condition: %d\n" | |
3436 | "busfree without old command: %d\n" | |
3437 | "busfree without new command: %d\n" | |
3438 | "busfree without done command: %d\n" | |
3439 | "busfree without any action: %d\n" | |
3440 | "state " | |
3441 | "transitions " | |
3442 | "count " | |
3443 | "time\n", | |
3444 | HOSTDATA(shpnt)->total_commands, | |
3445 | HOSTDATA(shpnt)->disconnections, | |
3446 | HOSTDATA(shpnt)->busfree_with_check_condition, | |
3447 | HOSTDATA(shpnt)->busfree_without_old_command, | |
3448 | HOSTDATA(shpnt)->busfree_without_new_command, | |
3449 | HOSTDATA(shpnt)->busfree_without_done_command, | |
3450 | HOSTDATA(shpnt)->busfree_without_any_action); | |
3451 | for(i=0; i<maxstate; i++) { | |
3452 | SPRINTF("%-10s %-12d %-12d %-12ld\n", | |
3453 | states[i].name, | |
3454 | HOSTDATA(shpnt)->count_trans[i], | |
3455 | HOSTDATA(shpnt)->count[i], | |
3456 | HOSTDATA(shpnt)->time[i]); | |
3457 | } | |
3458 | #endif | |
3459 | ||
3460 | DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos); | |
3461 | ||
3462 | thislength = pos - (buffer + offset); | |
3463 | DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength); | |
3464 | ||
3465 | if(thislength<0) { | |
3466 | DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n"); | |
3467 | *start = NULL; | |
3468 | return 0; | |
3469 | } | |
3470 | ||
3471 | thislength = thislength<length ? thislength : length; | |
3472 | ||
3473 | DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength); | |
3474 | ||
3475 | *start = buffer + offset; | |
3476 | return thislength < length ? thislength : length; | |
3477 | } | |
3478 | ||
3479 | static int aha152x_adjust_queue(struct scsi_device *device) | |
3480 | { | |
3481 | blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH); | |
3482 | return 0; | |
3483 | } | |
3484 | ||
3485 | static struct scsi_host_template aha152x_driver_template = { | |
3486 | .module = THIS_MODULE, | |
3487 | .name = AHA152X_REVID, | |
3488 | .proc_name = "aha152x", | |
3489 | .proc_info = aha152x_proc_info, | |
3490 | .queuecommand = aha152x_queue, | |
3491 | .eh_abort_handler = aha152x_abort, | |
3492 | .eh_device_reset_handler = aha152x_device_reset, | |
3493 | .eh_bus_reset_handler = aha152x_bus_reset, | |
3494 | .eh_host_reset_handler = aha152x_host_reset, | |
3495 | .bios_param = aha152x_biosparam, | |
3496 | .can_queue = 1, | |
3497 | .this_id = 7, | |
3498 | .sg_tablesize = SG_ALL, | |
3499 | .cmd_per_lun = 1, | |
3500 | .use_clustering = DISABLE_CLUSTERING, | |
3501 | .slave_alloc = aha152x_adjust_queue, | |
3502 | }; | |
3503 | ||
3504 | #if !defined(PCMCIA) | |
3505 | static int setup_count; | |
3506 | static struct aha152x_setup setup[2]; | |
3507 | ||
3508 | /* possible i/o addresses for the AIC-6260; default first */ | |
3509 | static unsigned short ports[] = { 0x340, 0x140 }; | |
3510 | ||
3511 | #if !defined(SKIP_BIOSTEST) | |
3512 | /* possible locations for the Adaptec BIOS; defaults first */ | |
3513 | static unsigned int addresses[] = | |
3514 | { | |
3515 | 0xdc000, /* default first */ | |
3516 | 0xc8000, | |
3517 | 0xcc000, | |
3518 | 0xd0000, | |
3519 | 0xd4000, | |
3520 | 0xd8000, | |
3521 | 0xe0000, | |
3522 | 0xeb800, /* VTech Platinum SMP */ | |
3523 | 0xf0000, | |
3524 | }; | |
3525 | ||
3526 | /* signatures for various AIC-6[23]60 based controllers. | |
3527 | The point in detecting signatures is to avoid useless and maybe | |
3528 | harmful probes on ports. I'm not sure that all listed boards pass | |
3529 | auto-configuration. For those which fail the BIOS signature is | |
3530 | obsolete, because user intervention to supply the configuration is | |
3531 | needed anyway. May be an information whether or not the BIOS supports | |
3532 | extended translation could be also useful here. */ | |
3533 | static struct signature { | |
3534 | unsigned char *signature; | |
3535 | int sig_offset; | |
3536 | int sig_length; | |
3537 | } signatures[] = | |
3538 | { | |
3539 | { "Adaptec AHA-1520 BIOS", 0x102e, 21 }, | |
3540 | /* Adaptec 152x */ | |
3541 | { "Adaptec AHA-1520B", 0x000b, 17 }, | |
3542 | /* Adaptec 152x rev B */ | |
3543 | { "Adaptec AHA-1520B", 0x0026, 17 }, | |
3544 | /* Iomega Jaz Jet ISA (AIC6370Q) */ | |
3545 | { "Adaptec ASW-B626 BIOS", 0x1029, 21 }, | |
3546 | /* on-board controller */ | |
3547 | { "Adaptec BIOS: ASW-B626", 0x000f, 22 }, | |
3548 | /* on-board controller */ | |
3549 | { "Adaptec ASW-B626 S2", 0x2e6c, 19 }, | |
3550 | /* on-board controller */ | |
3551 | { "Adaptec BIOS:AIC-6360", 0x000c, 21 }, | |
3552 | /* on-board controller */ | |
3553 | { "ScsiPro SP-360 BIOS", 0x2873, 19 }, | |
3554 | /* ScsiPro-Controller */ | |
3555 | { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 }, | |
3556 | /* Gigabyte Local-Bus-SCSI */ | |
3557 | { "Adaptec BIOS:AVA-282X", 0x000c, 21 }, | |
3558 | /* Adaptec 282x */ | |
3559 | { "Adaptec IBM Dock II SCSI", 0x2edd, 24 }, | |
3560 | /* IBM Thinkpad Dock II */ | |
3561 | { "Adaptec BIOS:AHA-1532P", 0x001c, 22 }, | |
3562 | /* IBM Thinkpad Dock II SCSI */ | |
3563 | { "DTC3520A Host Adapter BIOS", 0x318a, 26 }, | |
3564 | /* DTC 3520A ISA SCSI */ | |
3565 | }; | |
3566 | #endif /* !SKIP_BIOSTEST */ | |
3567 | ||
3568 | /* | |
3569 | * Test, if port_base is valid. | |
3570 | * | |
3571 | */ | |
3572 | static int aha152x_porttest(int io_port) | |
3573 | { | |
3574 | int i; | |
3575 | ||
3576 | SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ | |
3577 | for (i = 0; i < 16; i++) | |
3578 | SETPORT(io_port + O_STACK, i); | |
3579 | ||
3580 | SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ | |
3581 | for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++) | |
3582 | ; | |
3583 | ||
3584 | return (i == 16); | |
3585 | } | |
3586 | ||
3587 | static int tc1550_porttest(int io_port) | |
3588 | { | |
3589 | int i; | |
3590 | ||
3591 | SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ | |
3592 | for (i = 0; i < 16; i++) | |
3593 | SETPORT(io_port + O_STACK, i); | |
3594 | ||
3595 | SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ | |
3596 | for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++) | |
3597 | ; | |
3598 | ||
3599 | return (i == 16); | |
3600 | } | |
3601 | ||
3602 | ||
3603 | static int checksetup(struct aha152x_setup *setup) | |
3604 | { | |
3605 | int i; | |
3606 | for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++) | |
3607 | ; | |
3608 | ||
3609 | if (i == ARRAY_SIZE(ports)) | |
3610 | return 0; | |
3611 | ||
3612 | if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) { | |
3613 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port); | |
3614 | return 0; | |
3615 | } | |
3616 | ||
3617 | if( aha152x_porttest(setup->io_port) ) { | |
3618 | setup->tc1550=0; | |
3619 | } else if( tc1550_porttest(setup->io_port) ) { | |
3620 | setup->tc1550=1; | |
3621 | } else { | |
3622 | release_region(setup->io_port, IO_RANGE); | |
3623 | return 0; | |
3624 | } | |
3625 | ||
3626 | release_region(setup->io_port, IO_RANGE); | |
3627 | ||
3628 | if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX)) | |
3629 | return 0; | |
3630 | ||
3631 | if ((setup->scsiid < 0) || (setup->scsiid > 7)) | |
3632 | return 0; | |
3633 | ||
3634 | if ((setup->reconnect < 0) || (setup->reconnect > 1)) | |
3635 | return 0; | |
3636 | ||
3637 | if ((setup->parity < 0) || (setup->parity > 1)) | |
3638 | return 0; | |
3639 | ||
3640 | if ((setup->synchronous < 0) || (setup->synchronous > 1)) | |
3641 | return 0; | |
3642 | ||
3643 | if ((setup->ext_trans < 0) || (setup->ext_trans > 1)) | |
3644 | return 0; | |
3645 | ||
3646 | ||
3647 | return 1; | |
3648 | } | |
3649 | ||
3650 | ||
3651 | static int __init aha152x_init(void) | |
3652 | { | |
3653 | int i, j, ok; | |
3654 | #if defined(AUTOCONF) | |
3655 | aha152x_config conf; | |
3656 | #endif | |
3657 | #ifdef __ISAPNP__ | |
3658 | struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL}; | |
3659 | #endif | |
3660 | ||
3661 | if ( setup_count ) { | |
3662 | printk(KERN_INFO "aha152x: processing commandline: "); | |
3663 | ||
3664 | for (i = 0; i<setup_count; i++) { | |
3665 | if (!checksetup(&setup[i])) { | |
3666 | printk(KERN_ERR "\naha152x: %s\n", setup[i].conf); | |
3667 | printk(KERN_ERR "aha152x: invalid line\n"); | |
3668 | } | |
3669 | } | |
3670 | printk("ok\n"); | |
3671 | } | |
3672 | ||
3673 | #if defined(SETUP0) | |
3674 | if (setup_count < ARRAY_SIZE(setup)) { | |
3675 | struct aha152x_setup override = SETUP0; | |
3676 | ||
3677 | if (setup_count == 0 || (override.io_port != setup[0].io_port)) { | |
3678 | if (!checksetup(&override)) { | |
3679 | printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", | |
3680 | override.io_port, | |
3681 | override.irq, | |
3682 | override.scsiid, | |
3683 | override.reconnect, | |
3684 | override.parity, | |
3685 | override.synchronous, | |
3686 | override.delay, | |
3687 | override.ext_trans); | |
3688 | } else | |
3689 | setup[setup_count++] = override; | |
3690 | } | |
3691 | } | |
3692 | #endif | |
3693 | ||
3694 | #if defined(SETUP1) | |
3695 | if (setup_count < ARRAY_SIZE(setup)) { | |
3696 | struct aha152x_setup override = SETUP1; | |
3697 | ||
3698 | if (setup_count == 0 || (override.io_port != setup[0].io_port)) { | |
3699 | if (!checksetup(&override)) { | |
3700 | printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n", | |
3701 | override.io_port, | |
3702 | override.irq, | |
3703 | override.scsiid, | |
3704 | override.reconnect, | |
3705 | override.parity, | |
3706 | override.synchronous, | |
3707 | override.delay, | |
3708 | override.ext_trans); | |
3709 | } else | |
3710 | setup[setup_count++] = override; | |
3711 | } | |
3712 | } | |
3713 | #endif | |
3714 | ||
3715 | #if defined(MODULE) | |
3716 | if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) { | |
3717 | if(aha152x[0]!=0) { | |
3718 | setup[setup_count].conf = ""; | |
3719 | setup[setup_count].io_port = aha152x[0]; | |
3720 | setup[setup_count].irq = aha152x[1]; | |
3721 | setup[setup_count].scsiid = aha152x[2]; | |
3722 | setup[setup_count].reconnect = aha152x[3]; | |
3723 | setup[setup_count].parity = aha152x[4]; | |
3724 | setup[setup_count].synchronous = aha152x[5]; | |
3725 | setup[setup_count].delay = aha152x[6]; | |
3726 | setup[setup_count].ext_trans = aha152x[7]; | |
3727 | #if defined(AHA152X_DEBUG) | |
3728 | setup[setup_count].debug = aha152x[8]; | |
3729 | #endif | |
3730 | } else if(io[0]!=0 || irq[0]!=0) { | |
3731 | if(io[0]!=0) setup[setup_count].io_port = io[0]; | |
3732 | if(irq[0]!=0) setup[setup_count].irq = irq[0]; | |
3733 | ||
3734 | setup[setup_count].scsiid = scsiid[0]; | |
3735 | setup[setup_count].reconnect = reconnect[0]; | |
3736 | setup[setup_count].parity = parity[0]; | |
3737 | setup[setup_count].synchronous = sync[0]; | |
3738 | setup[setup_count].delay = delay[0]; | |
3739 | setup[setup_count].ext_trans = exttrans[0]; | |
3740 | #if defined(AHA152X_DEBUG) | |
3741 | setup[setup_count].debug = debug[0]; | |
3742 | #endif | |
3743 | } | |
3744 | ||
3745 | if (checksetup(&setup[setup_count])) | |
3746 | setup_count++; | |
3747 | else | |
3748 | 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", | |
3749 | setup[setup_count].io_port, | |
3750 | setup[setup_count].irq, | |
3751 | setup[setup_count].scsiid, | |
3752 | setup[setup_count].reconnect, | |
3753 | setup[setup_count].parity, | |
3754 | setup[setup_count].synchronous, | |
3755 | setup[setup_count].delay, | |
3756 | setup[setup_count].ext_trans); | |
3757 | } | |
3758 | ||
3759 | if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) { | |
3760 | if(aha152x1[0]!=0) { | |
3761 | setup[setup_count].conf = ""; | |
3762 | setup[setup_count].io_port = aha152x1[0]; | |
3763 | setup[setup_count].irq = aha152x1[1]; | |
3764 | setup[setup_count].scsiid = aha152x1[2]; | |
3765 | setup[setup_count].reconnect = aha152x1[3]; | |
3766 | setup[setup_count].parity = aha152x1[4]; | |
3767 | setup[setup_count].synchronous = aha152x1[5]; | |
3768 | setup[setup_count].delay = aha152x1[6]; | |
3769 | setup[setup_count].ext_trans = aha152x1[7]; | |
3770 | #if defined(AHA152X_DEBUG) | |
3771 | setup[setup_count].debug = aha152x1[8]; | |
3772 | #endif | |
3773 | } else if(io[1]!=0 || irq[1]!=0) { | |
3774 | if(io[1]!=0) setup[setup_count].io_port = io[1]; | |
3775 | if(irq[1]!=0) setup[setup_count].irq = irq[1]; | |
3776 | ||
3777 | setup[setup_count].scsiid = scsiid[1]; | |
3778 | setup[setup_count].reconnect = reconnect[1]; | |
3779 | setup[setup_count].parity = parity[1]; | |
3780 | setup[setup_count].synchronous = sync[1]; | |
3781 | setup[setup_count].delay = delay[1]; | |
3782 | setup[setup_count].ext_trans = exttrans[1]; | |
3783 | #if defined(AHA152X_DEBUG) | |
3784 | setup[setup_count].debug = debug[1]; | |
3785 | #endif | |
3786 | } | |
3787 | if (checksetup(&setup[setup_count])) | |
3788 | setup_count++; | |
3789 | else | |
3790 | 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", | |
3791 | setup[setup_count].io_port, | |
3792 | setup[setup_count].irq, | |
3793 | setup[setup_count].scsiid, | |
3794 | setup[setup_count].reconnect, | |
3795 | setup[setup_count].parity, | |
3796 | setup[setup_count].synchronous, | |
3797 | setup[setup_count].delay, | |
3798 | setup[setup_count].ext_trans); | |
3799 | } | |
3800 | #endif | |
3801 | ||
3802 | #ifdef __ISAPNP__ | |
3803 | for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) { | |
3804 | while ( setup_count<ARRAY_SIZE(setup) && | |
3805 | (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) { | |
3806 | if (pnp_device_attach(dev) < 0) | |
3807 | continue; | |
3808 | ||
3809 | if (pnp_activate_dev(dev) < 0) { | |
3810 | pnp_device_detach(dev); | |
3811 | continue; | |
3812 | } | |
3813 | ||
3814 | if (!pnp_port_valid(dev, 0)) { | |
3815 | pnp_device_detach(dev); | |
3816 | continue; | |
3817 | } | |
3818 | ||
3819 | if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) { | |
3820 | pnp_device_detach(dev); | |
3821 | continue; | |
3822 | } | |
3823 | ||
3824 | setup[setup_count].io_port = pnp_port_start(dev, 0); | |
3825 | setup[setup_count].irq = pnp_irq(dev, 0); | |
3826 | setup[setup_count].scsiid = 7; | |
3827 | setup[setup_count].reconnect = 1; | |
3828 | setup[setup_count].parity = 1; | |
3829 | setup[setup_count].synchronous = 1; | |
3830 | setup[setup_count].delay = DELAY_DEFAULT; | |
3831 | setup[setup_count].ext_trans = 0; | |
3832 | #if defined(AHA152X_DEBUG) | |
3833 | setup[setup_count].debug = DEBUG_DEFAULT; | |
3834 | #endif | |
3835 | #if defined(__ISAPNP__) | |
3836 | pnpdev[setup_count] = dev; | |
3837 | #endif | |
3838 | printk (KERN_INFO | |
3839 | "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n", | |
3840 | setup[setup_count].io_port, setup[setup_count].irq); | |
3841 | setup_count++; | |
3842 | } | |
3843 | } | |
3844 | #endif | |
3845 | ||
3846 | #if defined(AUTOCONF) | |
3847 | if (setup_count<ARRAY_SIZE(setup)) { | |
3848 | #if !defined(SKIP_BIOSTEST) | |
3849 | ok = 0; | |
3850 | for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) { | |
3851 | void __iomem *p = ioremap(addresses[i], 0x4000); | |
3852 | if (!p) | |
3853 | continue; | |
3854 | for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++) | |
3855 | ok = check_signature(p + signatures[j].sig_offset, | |
3856 | signatures[j].signature, signatures[j].sig_length); | |
3857 | iounmap(p); | |
3858 | } | |
3859 | if (!ok && setup_count == 0) | |
3860 | return 0; | |
3861 | ||
3862 | printk(KERN_INFO "aha152x: BIOS test: passed, "); | |
3863 | #else | |
3864 | printk(KERN_INFO "aha152x: "); | |
3865 | #endif /* !SKIP_BIOSTEST */ | |
3866 | ||
3867 | ok = 0; | |
3868 | for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) { | |
3869 | if ((setup_count == 1) && (setup[0].io_port == ports[i])) | |
3870 | continue; | |
3871 | ||
3872 | if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) { | |
3873 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]); | |
3874 | continue; | |
3875 | } | |
3876 | ||
3877 | if (aha152x_porttest(ports[i])) { | |
3878 | setup[setup_count].tc1550 = 0; | |
3879 | ||
3880 | conf.cf_port = | |
3881 | (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB); | |
3882 | } else if (tc1550_porttest(ports[i])) { | |
3883 | setup[setup_count].tc1550 = 1; | |
3884 | ||
3885 | conf.cf_port = | |
3886 | (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB); | |
3887 | } else { | |
3888 | release_region(ports[i], IO_RANGE); | |
3889 | continue; | |
3890 | } | |
3891 | ||
3892 | release_region(ports[i], IO_RANGE); | |
3893 | ||
3894 | ok++; | |
3895 | setup[setup_count].io_port = ports[i]; | |
3896 | setup[setup_count].irq = IRQ_MIN + conf.cf_irq; | |
3897 | setup[setup_count].scsiid = conf.cf_id; | |
3898 | setup[setup_count].reconnect = conf.cf_tardisc; | |
3899 | setup[setup_count].parity = !conf.cf_parity; | |
3900 | setup[setup_count].synchronous = conf.cf_syncneg; | |
3901 | setup[setup_count].delay = DELAY_DEFAULT; | |
3902 | setup[setup_count].ext_trans = 0; | |
3903 | #if defined(AHA152X_DEBUG) | |
3904 | setup[setup_count].debug = DEBUG_DEFAULT; | |
3905 | #endif | |
3906 | setup_count++; | |
3907 | ||
3908 | } | |
3909 | ||
3910 | if (ok) | |
3911 | printk("auto configuration: ok, "); | |
3912 | } | |
3913 | #endif | |
3914 | ||
3915 | printk("%d controller(s) configured\n", setup_count); | |
3916 | ||
3917 | for (i=0; i<setup_count; i++) { | |
3918 | if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) { | |
3919 | struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]); | |
3920 | ||
3921 | if( !shpnt ) { | |
3922 | release_region(setup[i].io_port, IO_RANGE); | |
3923 | #if defined(__ISAPNP__) | |
3924 | } else if( pnpdev[i] ) { | |
3925 | HOSTDATA(shpnt)->pnpdev=pnpdev[i]; | |
3926 | pnpdev[i]=NULL; | |
3927 | #endif | |
3928 | } | |
3929 | } else { | |
3930 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port); | |
3931 | } | |
3932 | ||
3933 | #if defined(__ISAPNP__) | |
3934 | if( pnpdev[i] ) | |
3935 | pnp_device_detach(pnpdev[i]); | |
3936 | #endif | |
3937 | } | |
3938 | ||
3939 | return 1; | |
3940 | } | |
3941 | ||
3942 | static void __exit aha152x_exit(void) | |
3943 | { | |
3944 | struct aha152x_hostdata *hd; | |
3945 | ||
3946 | list_for_each_entry(hd, &aha152x_host_list, host_list) { | |
3947 | struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); | |
3948 | ||
3949 | aha152x_release(shost); | |
3950 | } | |
3951 | } | |
3952 | ||
3953 | module_init(aha152x_init); | |
3954 | module_exit(aha152x_exit); | |
3955 | ||
3956 | #if !defined(MODULE) | |
3957 | static int __init aha152x_setup(char *str) | |
3958 | { | |
3959 | #if defined(AHA152X_DEBUG) | |
3960 | int ints[11]; | |
3961 | #else | |
3962 | int ints[10]; | |
3963 | #endif | |
3964 | get_options(str, ARRAY_SIZE(ints), ints); | |
3965 | ||
3966 | if(setup_count>=ARRAY_SIZE(setup)) { | |
3967 | printk(KERN_ERR "aha152x: you can only configure up to two controllers\n"); | |
3968 | return 1; | |
3969 | } | |
3970 | ||
3971 | setup[setup_count].conf = str; | |
3972 | setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340; | |
3973 | setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11; | |
3974 | setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7; | |
3975 | setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1; | |
3976 | setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1; | |
3977 | setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1; | |
3978 | setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT; | |
3979 | setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0; | |
3980 | #if defined(AHA152X_DEBUG) | |
3981 | setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT; | |
3982 | if (ints[0] > 9) { | |
3983 | printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" | |
3984 | "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n"); | |
3985 | #else | |
3986 | if (ints[0] > 8) { /*}*/ | |
3987 | printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" | |
3988 | "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n"); | |
3989 | #endif | |
3990 | } else { | |
3991 | setup_count++; | |
3992 | return 0; | |
3993 | } | |
3994 | ||
3995 | return 1; | |
3996 | } | |
3997 | __setup("aha152x=", aha152x_setup); | |
3998 | #endif | |
3999 | ||
4000 | #endif /* !PCMCIA */ |