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