1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* aha152x.c -- Adaptec AHA-152x driver |
3 | * Author: Jürgen E. Fischer, fischer@norbit.de |
4 | * Copyright 1993-2004 Jürgen E. Fischer |
5 | * |
6 | * $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $ |
7 | * |
8 | * $Log: aha152x.c,v $ |
9 | * Revision 2.7 2004/01/24 11:42:59 fischer |
10 | * - gather code that is not used by PCMCIA at the end |
11 | * - move request_region for !PCMCIA case to detection |
12 | * - migration to new scsi host api (remove legacy code) |
13 | * - free host scribble before scsi_done |
14 | * - fix error handling |
15 | * - one isapnp device added to id_table |
16 | * |
17 | * Revision 2.6 2003/10/30 20:52:47 fischer |
18 | * - interfaces changes for kernel 2.6 |
19 | * - aha152x_probe_one introduced for pcmcia stub |
20 | * - fixed pnpdev handling |
21 | * - instead of allocation a new one, reuse command for request sense after check condition and reset |
22 | * - fixes race in is_complete |
23 | * |
24 | * Revision 2.5 2002/04/14 11:24:53 fischer |
25 | * - isapnp support |
26 | * - abort fixed |
27 | * - 2.5 support |
28 | * |
29 | * Revision 2.4 2000/12/16 12:53:56 fischer |
30 | * - allow REQUEST SENSE to be queued |
31 | * - handle shared PCI interrupts |
32 | * |
33 | * Revision 2.3 2000/11/04 16:40:26 fischer |
34 | * - handle data overruns |
35 | * - extend timeout for data phases |
36 | * |
37 | * Revision 2.2 2000/08/08 19:54:53 fischer |
38 | * - minor changes |
39 | * |
40 | * Revision 2.1 2000/05/17 16:23:17 fischer |
41 | * - signature update |
42 | * - fix for data out w/o scatter gather |
43 | * |
44 | * Revision 2.0 1999/12/25 15:07:32 fischer |
45 | * - interrupt routine completly reworked |
46 | * - basic support for new eh code |
47 | * |
48 | * Revision 1.21 1999/11/10 23:46:36 fischer |
49 | * - default to synchronous operation |
50 | * - synchronous negotiation fixed |
51 | * - added timeout to loops |
52 | * - debugging output can be controlled through procfs |
53 | * |
54 | * Revision 1.20 1999/11/07 18:37:31 fischer |
55 | * - synchronous operation works |
56 | * - resid support for sg driver |
57 | * |
58 | * Revision 1.19 1999/11/02 22:39:59 fischer |
59 | * - moved leading comments to README.aha152x |
60 | * - new additional module parameters |
61 | * - updates for 2.3 |
62 | * - support for the Tripace TC1550 controller |
63 | * - interrupt handling changed |
64 | * |
65 | * Revision 1.18 1996/09/07 20:10:40 fischer |
66 | * - fixed can_queue handling (multiple outstanding commands working again) |
67 | * |
68 | * Revision 1.17 1996/08/17 16:05:14 fischer |
69 | * - biosparam improved |
70 | * - interrupt verification |
71 | * - updated documentation |
72 | * - cleanups |
73 | * |
74 | * Revision 1.16 1996/06/09 00:04:56 root |
75 | * - added configuration symbols for insmod (aha152x/aha152x1) |
76 | * |
77 | * Revision 1.15 1996/04/30 14:52:06 fischer |
78 | * - proc info fixed |
79 | * - support for extended translation for >1GB disks |
80 | * |
81 | * Revision 1.14 1996/01/17 15:11:20 fischer |
82 | * - fixed lockup in MESSAGE IN phase after reconnection |
83 | * |
84 | * Revision 1.13 1996/01/09 02:15:53 fischer |
85 | * - some cleanups |
86 | * - moved request_irq behind controller initialization |
87 | * (to avoid spurious interrupts) |
88 | * |
89 | * Revision 1.12 1995/12/16 12:26:07 fischer |
90 | * - barrier()s added |
91 | * - configurable RESET delay added |
92 | * |
93 | * Revision 1.11 1995/12/06 21:18:35 fischer |
94 | * - some minor updates |
95 | * |
96 | * Revision 1.10 1995/07/22 19:18:45 fischer |
97 | * - support for 2 controllers |
98 | * - started synchronous data transfers (not working yet) |
99 | * |
100 | * Revision 1.9 1995/03/18 09:20:24 root |
101 | * - patches for PCMCIA and modules |
102 | * |
103 | * Revision 1.8 1995/01/21 22:07:19 root |
104 | * - snarf_region => request_region |
105 | * - aha152x_intr interface change |
106 | * |
107 | * Revision 1.7 1995/01/02 23:19:36 root |
108 | * - updated COMMAND_SIZE to cmd_len |
109 | * - changed sti() to restore_flags() |
110 | * - fixed some #ifdef which generated warnings |
111 | * |
112 | * Revision 1.6 1994/11/24 20:35:27 root |
113 | * - problem with odd number of bytes in fifo fixed |
114 | * |
115 | * Revision 1.5 1994/10/30 14:39:56 root |
116 | * - abort code fixed |
117 | * - debugging improved |
118 | * |
119 | * Revision 1.4 1994/09/12 11:33:01 root |
120 | * - irqaction to request_irq |
121 | * - abortion updated |
122 | * |
123 | * Revision 1.3 1994/08/04 13:53:05 root |
124 | * - updates for mid-level-driver changes |
125 | * - accept unexpected BUSFREE phase as error condition |
126 | * - parity check now configurable |
127 | * |
128 | * Revision 1.2 1994/07/03 12:56:36 root |
129 | * - cleaned up debugging code |
130 | * - more tweaking on reset delays |
131 | * - updated abort/reset code (pretty untested...) |
132 | * |
133 | * Revision 1.1 1994/05/28 21:18:49 root |
134 | * - update for mid-level interface change (abort-reset) |
135 | * - delays after resets adjusted for some slow devices |
136 | * |
137 | * Revision 1.0 1994/03/25 12:52:00 root |
138 | * - Fixed "more data than expected" problem |
139 | * - added new BIOS signatures |
140 | * |
141 | * Revision 0.102 1994/01/31 20:44:12 root |
142 | * - minor changes in insw/outsw handling |
143 | * |
144 | * Revision 0.101 1993/12/13 01:16:27 root |
145 | * - fixed STATUS phase (non-GOOD stati were dropped sometimes; |
146 | * fixes problems with CD-ROM sector size detection & media change) |
147 | * |
148 | * Revision 0.100 1993/12/10 16:58:47 root |
149 | * - fix for unsuccessful selections in case of non-continuous id assignments |
150 | * on the scsi bus. |
151 | * |
152 | * Revision 0.99 1993/10/24 16:19:59 root |
153 | * - fixed DATA IN (rare read errors gone) |
154 | * |
155 | * Revision 0.98 1993/10/17 12:54:44 root |
156 | * - fixed some recent fixes (shame on me) |
157 | * - moved initialization of scratch area to aha152x_queue |
158 | * |
159 | * Revision 0.97 1993/10/09 18:53:53 root |
160 | * - DATA IN fixed. Rarely left data in the fifo. |
161 | * |
162 | * Revision 0.96 1993/10/03 00:53:59 root |
163 | * - minor changes on DATA IN |
164 | * |
165 | * Revision 0.95 1993/09/24 10:36:01 root |
166 | * - change handling of MSGI after reselection |
167 | * - fixed sti/cli |
168 | * - minor changes |
169 | * |
170 | * Revision 0.94 1993/09/18 14:08:22 root |
171 | * - fixed bug in multiple outstanding command code |
172 | * - changed detection |
173 | * - support for kernel command line configuration |
174 | * - reset corrected |
175 | * - changed message handling |
176 | * |
177 | * Revision 0.93 1993/09/15 20:41:19 root |
178 | * - fixed bugs with multiple outstanding commands |
179 | * |
180 | * Revision 0.92 1993/09/13 02:46:33 root |
181 | * - multiple outstanding commands work (no problems with IBM drive) |
182 | * |
183 | * Revision 0.91 1993/09/12 20:51:46 root |
184 | * added multiple outstanding commands |
185 | * (some problem with this $%&? IBM device remain) |
186 | * |
187 | * Revision 0.9 1993/09/12 11:11:22 root |
188 | * - corrected auto-configuration |
189 | * - changed the auto-configuration (added some '#define's) |
190 | * - added support for dis-/reconnection |
191 | * |
192 | * Revision 0.8 1993/09/06 23:09:39 root |
193 | * - added support for the drive activity light |
194 | * - minor changes |
195 | * |
196 | * Revision 0.7 1993/09/05 14:30:15 root |
197 | * - improved phase detection |
198 | * - now using the new snarf_region code of 0.99pl13 |
199 | * |
200 | * Revision 0.6 1993/09/02 11:01:38 root |
201 | * first public release; added some signatures and biosparam() |
202 | * |
203 | * Revision 0.5 1993/08/30 10:23:30 root |
204 | * fixed timing problems with my IBM drive |
205 | * |
206 | * Revision 0.4 1993/08/29 14:06:52 root |
207 | * fixed some problems with timeouts due incomplete commands |
208 | * |
209 | * Revision 0.3 1993/08/28 15:55:03 root |
210 | * writing data works too. mounted and worked on a dos partition |
211 | * |
212 | * Revision 0.2 1993/08/27 22:42:07 root |
213 | * reading data works. Mounted a msdos partition. |
214 | * |
215 | * Revision 0.1 1993/08/25 13:38:30 root |
216 | * first "damn thing doesn't work" version |
217 | * |
218 | * Revision 0.0 1993/08/14 19:54:25 root |
219 | * empty function bodies; detect() works. |
220 | * |
221 | ************************************************************************** |
222 | |
223 | see Documentation/scsi/aha152x.rst for configuration details |
224 | |
225 | **************************************************************************/ |
226 | |
227 | #include <linux/module.h> |
228 | #include <asm/irq.h> |
229 | #include <linux/io.h> |
230 | #include <linux/blkdev.h> |
231 | #include <linux/completion.h> |
232 | #include <linux/errno.h> |
233 | #include <linux/string.h> |
234 | #include <linux/wait.h> |
235 | #include <linux/ioport.h> |
236 | #include <linux/delay.h> |
237 | #include <linux/proc_fs.h> |
238 | #include <linux/interrupt.h> |
239 | #include <linux/init.h> |
240 | #include <linux/kernel.h> |
241 | #include <linux/isapnp.h> |
242 | #include <linux/spinlock.h> |
243 | #include <linux/workqueue.h> |
244 | #include <linux/list.h> |
245 | #include <linux/slab.h> |
246 | |
247 | #include <scsi/scsi.h> |
248 | #include <scsi/scsi_cmnd.h> |
249 | #include <scsi/scsi_dbg.h> |
250 | #include <scsi/scsi_device.h> |
251 | #include <scsi/scsi_eh.h> |
252 | #include <scsi/scsi_host.h> |
253 | #include <scsi/scsi_tcq.h> |
254 | #include <scsi/scsi_transport_spi.h> |
255 | #include <scsi/scsicam.h> |
256 | #include "aha152x.h" |
257 | |
258 | static LIST_HEAD(aha152x_host_list); |
259 | |
260 | |
261 | /* DEFINES */ |
262 | |
263 | /* For PCMCIA cards, always use AUTOCONF */ |
264 | #if defined(AHA152X_PCMCIA) || defined(MODULE) |
265 | #if !defined(AUTOCONF) |
266 | #define AUTOCONF |
267 | #endif |
268 | #endif |
269 | |
270 | #if !defined(AUTOCONF) && !defined(SETUP0) |
271 | #error define AUTOCONF or SETUP0 |
272 | #endif |
273 | |
274 | #define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags) |
275 | #define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags) |
276 | |
277 | #define LEAD "(scsi%d:%d:%d) " |
278 | #define INFO_LEAD KERN_INFO LEAD |
279 | #define CMDINFO(cmd) \ |
280 | (cmd) ? ((cmd)->device->host->host_no) : -1, \ |
281 | (cmd) ? ((cmd)->device->id & 0x0f) : -1, \ |
282 | (cmd) ? ((u8)(cmd)->device->lun & 0x07) : -1 |
283 | |
284 | static inline void |
285 | CMD_INC_RESID(struct scsi_cmnd *cmd, int inc) |
286 | { |
287 | scsi_set_resid(cmd, resid: scsi_get_resid(cmd) + inc); |
288 | } |
289 | |
290 | #define DELAY_DEFAULT 1000 |
291 | |
292 | #if defined(AHA152X_PCMCIA) |
293 | #define IRQ_MIN 0 |
294 | #define IRQ_MAX 16 |
295 | #else |
296 | #define IRQ_MIN 9 |
297 | #if defined(__PPC) |
298 | #define IRQ_MAX (nr_irqs-1) |
299 | #else |
300 | #define IRQ_MAX 12 |
301 | #endif |
302 | #endif |
303 | |
304 | enum { |
305 | not_issued = 0x0001, /* command not yet issued */ |
306 | selecting = 0x0002, /* target is being selected */ |
307 | identified = 0x0004, /* IDENTIFY was sent */ |
308 | disconnected = 0x0008, /* target disconnected */ |
309 | completed = 0x0010, /* target sent COMMAND COMPLETE */ |
310 | aborted = 0x0020, /* ABORT was sent */ |
311 | resetted = 0x0040, /* BUS DEVICE RESET was sent */ |
312 | spiordy = 0x0080, /* waiting for SPIORDY to raise */ |
313 | syncneg = 0x0100, /* synchronous negotiation in progress */ |
314 | aborting = 0x0200, /* ABORT is pending */ |
315 | resetting = 0x0400, /* BUS DEVICE RESET is pending */ |
316 | check_condition = 0x0800, /* requesting sense after CHECK CONDITION */ |
317 | }; |
318 | |
319 | struct aha152x_cmd_priv { |
320 | char *ptr; |
321 | int this_residual; |
322 | struct scatterlist *buffer; |
323 | int status; |
324 | int message; |
325 | int sent_command; |
326 | int phase; |
327 | }; |
328 | |
329 | static struct aha152x_cmd_priv *aha152x_priv(struct scsi_cmnd *cmd) |
330 | { |
331 | return scsi_cmd_priv(cmd); |
332 | } |
333 | |
334 | MODULE_AUTHOR("Jürgen Fischer" ); |
335 | MODULE_DESCRIPTION(AHA152X_REVID); |
336 | MODULE_LICENSE("GPL" ); |
337 | |
338 | #if !defined(AHA152X_PCMCIA) |
339 | #if defined(MODULE) |
340 | static int io[] = {0, 0}; |
341 | module_param_hw_array(io, int, ioport, NULL, 0); |
342 | MODULE_PARM_DESC(io,"base io address of controller" ); |
343 | |
344 | static int irq[] = {0, 0}; |
345 | module_param_hw_array(irq, int, irq, NULL, 0); |
346 | MODULE_PARM_DESC(irq,"interrupt for controller" ); |
347 | |
348 | static int scsiid[] = {7, 7}; |
349 | module_param_array(scsiid, int, NULL, 0); |
350 | MODULE_PARM_DESC(scsiid,"scsi id of controller" ); |
351 | |
352 | static int reconnect[] = {1, 1}; |
353 | module_param_array(reconnect, int, NULL, 0); |
354 | MODULE_PARM_DESC(reconnect,"allow targets to disconnect" ); |
355 | |
356 | static int parity[] = {1, 1}; |
357 | module_param_array(parity, int, NULL, 0); |
358 | MODULE_PARM_DESC(parity,"use scsi parity" ); |
359 | |
360 | static int sync[] = {1, 1}; |
361 | module_param_array(sync, int, NULL, 0); |
362 | MODULE_PARM_DESC(sync,"use synchronous transfers" ); |
363 | |
364 | static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT}; |
365 | module_param_array(delay, int, NULL, 0); |
366 | MODULE_PARM_DESC(delay,"scsi reset delay" ); |
367 | |
368 | static int exttrans[] = {0, 0}; |
369 | module_param_array(exttrans, int, NULL, 0); |
370 | MODULE_PARM_DESC(exttrans,"use extended translation" ); |
371 | |
372 | static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; |
373 | module_param_array(aha152x, int, NULL, 0); |
374 | MODULE_PARM_DESC(aha152x, "parameters for first controller" ); |
375 | |
376 | static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0}; |
377 | module_param_array(aha152x1, int, NULL, 0); |
378 | MODULE_PARM_DESC(aha152x1, "parameters for second controller" ); |
379 | #endif /* MODULE */ |
380 | |
381 | #ifdef __ISAPNP__ |
382 | static struct isapnp_device_id id_table[] = { |
383 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 }, |
384 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 }, |
385 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 }, |
386 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 }, |
387 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 }, |
388 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 }, |
389 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 }, |
390 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 }, |
391 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 }, |
392 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 }, |
393 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 }, |
394 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 }, |
395 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 }, |
396 | { ISAPNP_DEVICE_SINGLE_END, } |
397 | }; |
398 | MODULE_DEVICE_TABLE(isapnp, id_table); |
399 | #endif /* ISAPNP */ |
400 | |
401 | #endif /* !AHA152X_PCMCIA */ |
402 | |
403 | static const struct scsi_host_template aha152x_driver_template; |
404 | |
405 | /* |
406 | * internal states of the host |
407 | * |
408 | */ |
409 | enum aha152x_state { |
410 | idle=0, |
411 | unknown, |
412 | seldo, |
413 | seldi, |
414 | selto, |
415 | busfree, |
416 | msgo, |
417 | cmd, |
418 | msgi, |
419 | status, |
420 | datai, |
421 | datao, |
422 | parerr, |
423 | rsti, |
424 | maxstate |
425 | }; |
426 | |
427 | /* |
428 | * current state information of the host |
429 | * |
430 | */ |
431 | struct aha152x_hostdata { |
432 | struct scsi_cmnd *issue_SC; |
433 | /* pending commands to issue */ |
434 | |
435 | struct scsi_cmnd *current_SC; |
436 | /* current command on the bus */ |
437 | |
438 | struct scsi_cmnd *disconnected_SC; |
439 | /* commands that disconnected */ |
440 | |
441 | struct scsi_cmnd *done_SC; |
442 | /* command that was completed */ |
443 | |
444 | spinlock_t lock; |
445 | /* host lock */ |
446 | |
447 | #if defined(AHA152X_STAT) |
448 | int total_commands; |
449 | int disconnections; |
450 | int busfree_without_any_action; |
451 | int busfree_without_old_command; |
452 | int busfree_without_new_command; |
453 | int busfree_without_done_command; |
454 | int busfree_with_check_condition; |
455 | int count[maxstate]; |
456 | int count_trans[maxstate]; |
457 | unsigned long time[maxstate]; |
458 | #endif |
459 | |
460 | int commands; /* current number of commands */ |
461 | |
462 | int reconnect; /* disconnection allowed */ |
463 | int parity; /* parity checking enabled */ |
464 | int synchronous; /* synchronous transferes enabled */ |
465 | int delay; /* reset out delay */ |
466 | int ext_trans; /* extended translation enabled */ |
467 | |
468 | int swint; /* software-interrupt was fired during detect() */ |
469 | int service; /* bh needs to be run */ |
470 | int in_intr; /* bh is running */ |
471 | |
472 | /* current state, |
473 | previous state, |
474 | last state different from current state */ |
475 | enum aha152x_state state, prevstate, laststate; |
476 | |
477 | int target; |
478 | /* reconnecting target */ |
479 | |
480 | unsigned char syncrate[8]; |
481 | /* current synchronous transfer agreements */ |
482 | |
483 | unsigned char syncneg[8]; |
484 | /* 0: no negotiation; |
485 | * 1: negotiation in progress; |
486 | * 2: negotiation completed |
487 | */ |
488 | |
489 | int cmd_i; |
490 | /* number of sent bytes of current command */ |
491 | |
492 | int msgi_len; |
493 | /* number of received message bytes */ |
494 | unsigned char msgi[256]; |
495 | /* received message bytes */ |
496 | |
497 | int msgo_i, msgo_len; |
498 | /* number of sent bytes and length of current messages */ |
499 | unsigned char msgo[256]; |
500 | /* pending messages */ |
501 | |
502 | int data_len; |
503 | /* number of sent/received bytes in dataphase */ |
504 | |
505 | unsigned long io_port0; |
506 | unsigned long io_port1; |
507 | |
508 | #ifdef __ISAPNP__ |
509 | struct pnp_dev *pnpdev; |
510 | #endif |
511 | struct list_head host_list; |
512 | }; |
513 | |
514 | |
515 | /* |
516 | * host specific command extension |
517 | * |
518 | */ |
519 | struct aha152x_scdata { |
520 | struct scsi_cmnd *next; /* next sc in queue */ |
521 | struct completion *done;/* semaphore to block on */ |
522 | struct scsi_eh_save ses; |
523 | }; |
524 | |
525 | /* access macros for hostdata */ |
526 | |
527 | #define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata) |
528 | |
529 | #define HOSTNO ((shpnt)->host_no) |
530 | |
531 | #define CURRENT_SC (HOSTDATA(shpnt)->current_SC) |
532 | #define DONE_SC (HOSTDATA(shpnt)->done_SC) |
533 | #define ISSUE_SC (HOSTDATA(shpnt)->issue_SC) |
534 | #define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC) |
535 | #define QLOCK (HOSTDATA(shpnt)->lock) |
536 | #define QLOCKER (HOSTDATA(shpnt)->locker) |
537 | #define QLOCKERL (HOSTDATA(shpnt)->lockerl) |
538 | |
539 | #define STATE (HOSTDATA(shpnt)->state) |
540 | #define PREVSTATE (HOSTDATA(shpnt)->prevstate) |
541 | #define LASTSTATE (HOSTDATA(shpnt)->laststate) |
542 | |
543 | #define RECONN_TARGET (HOSTDATA(shpnt)->target) |
544 | |
545 | #define CMD_I (HOSTDATA(shpnt)->cmd_i) |
546 | |
547 | #define MSGO(i) (HOSTDATA(shpnt)->msgo[i]) |
548 | #define MSGO_I (HOSTDATA(shpnt)->msgo_i) |
549 | #define MSGOLEN (HOSTDATA(shpnt)->msgo_len) |
550 | #define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow")) |
551 | |
552 | #define MSGI(i) (HOSTDATA(shpnt)->msgi[i]) |
553 | #define MSGILEN (HOSTDATA(shpnt)->msgi_len) |
554 | #define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow")) |
555 | |
556 | #define DATA_LEN (HOSTDATA(shpnt)->data_len) |
557 | |
558 | #define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id]) |
559 | #define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id]) |
560 | |
561 | #define DELAY (HOSTDATA(shpnt)->delay) |
562 | #define EXT_TRANS (HOSTDATA(shpnt)->ext_trans) |
563 | #define TC1550 (HOSTDATA(shpnt)->tc1550) |
564 | #define RECONNECT (HOSTDATA(shpnt)->reconnect) |
565 | #define PARITY (HOSTDATA(shpnt)->parity) |
566 | #define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous) |
567 | |
568 | #define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0) |
569 | #define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1) |
570 | |
571 | #define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble) |
572 | #define SCNEXT(SCpnt) SCDATA(SCpnt)->next |
573 | #define SCSEM(SCpnt) SCDATA(SCpnt)->done |
574 | |
575 | #define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) |
576 | |
577 | /* state handling */ |
578 | static void seldi_run(struct Scsi_Host *shpnt); |
579 | static void seldo_run(struct Scsi_Host *shpnt); |
580 | static void selto_run(struct Scsi_Host *shpnt); |
581 | static void busfree_run(struct Scsi_Host *shpnt); |
582 | |
583 | static void msgo_init(struct Scsi_Host *shpnt); |
584 | static void msgo_run(struct Scsi_Host *shpnt); |
585 | static void msgo_end(struct Scsi_Host *shpnt); |
586 | |
587 | static void cmd_init(struct Scsi_Host *shpnt); |
588 | static void cmd_run(struct Scsi_Host *shpnt); |
589 | static void cmd_end(struct Scsi_Host *shpnt); |
590 | |
591 | static void datai_init(struct Scsi_Host *shpnt); |
592 | static void datai_run(struct Scsi_Host *shpnt); |
593 | static void datai_end(struct Scsi_Host *shpnt); |
594 | |
595 | static void datao_init(struct Scsi_Host *shpnt); |
596 | static void datao_run(struct Scsi_Host *shpnt); |
597 | static void datao_end(struct Scsi_Host *shpnt); |
598 | |
599 | static void status_run(struct Scsi_Host *shpnt); |
600 | |
601 | static void msgi_run(struct Scsi_Host *shpnt); |
602 | static void msgi_end(struct Scsi_Host *shpnt); |
603 | |
604 | static void parerr_run(struct Scsi_Host *shpnt); |
605 | static void rsti_run(struct Scsi_Host *shpnt); |
606 | |
607 | static void is_complete(struct Scsi_Host *shpnt); |
608 | |
609 | /* |
610 | * driver states |
611 | * |
612 | */ |
613 | static struct { |
614 | char *name; |
615 | void (*init)(struct Scsi_Host *); |
616 | void (*run)(struct Scsi_Host *); |
617 | void (*end)(struct Scsi_Host *); |
618 | int spio; |
619 | } states[] = { |
620 | { "idle" , NULL, NULL, NULL, 0}, |
621 | { "unknown" , NULL, NULL, NULL, 0}, |
622 | { "seldo" , NULL, seldo_run, NULL, 0}, |
623 | { "seldi" , NULL, seldi_run, NULL, 0}, |
624 | { "selto" , NULL, selto_run, NULL, 0}, |
625 | { "busfree" , NULL, busfree_run, NULL, 0}, |
626 | { "msgo" , msgo_init, msgo_run, msgo_end, 1}, |
627 | { "cmd" , cmd_init, cmd_run, cmd_end, 1}, |
628 | { "msgi" , NULL, msgi_run, msgi_end, 1}, |
629 | { "status" , NULL, status_run, NULL, 1}, |
630 | { "datai" , datai_init, datai_run, datai_end, 0}, |
631 | { "datao" , datao_init, datao_run, datao_end, 0}, |
632 | { "parerr" , NULL, parerr_run, NULL, 0}, |
633 | { "rsti" , NULL, rsti_run, NULL, 0}, |
634 | }; |
635 | |
636 | /* setup & interrupt */ |
637 | static irqreturn_t intr(int irq, void *dev_id); |
638 | static void reset_ports(struct Scsi_Host *shpnt); |
639 | static void aha152x_error(struct Scsi_Host *shpnt, char *msg); |
640 | static void done(struct Scsi_Host *shpnt, unsigned char status_byte, |
641 | unsigned char host_byte); |
642 | |
643 | /* diagnostics */ |
644 | static void show_command(struct scsi_cmnd * ptr); |
645 | static void show_queues(struct Scsi_Host *shpnt); |
646 | static void disp_enintr(struct Scsi_Host *shpnt); |
647 | |
648 | |
649 | /* |
650 | * queue services: |
651 | * |
652 | */ |
653 | static inline void append_SC(struct scsi_cmnd **SC, struct scsi_cmnd *new_SC) |
654 | { |
655 | struct scsi_cmnd *end; |
656 | |
657 | SCNEXT(new_SC) = NULL; |
658 | if (!*SC) |
659 | *SC = new_SC; |
660 | else { |
661 | for (end = *SC; SCNEXT(end); end = SCNEXT(end)) |
662 | ; |
663 | SCNEXT(end) = new_SC; |
664 | } |
665 | } |
666 | |
667 | static inline struct scsi_cmnd *remove_first_SC(struct scsi_cmnd ** SC) |
668 | { |
669 | struct scsi_cmnd *ptr; |
670 | |
671 | ptr = *SC; |
672 | if (ptr) { |
673 | *SC = SCNEXT(*SC); |
674 | SCNEXT(ptr)=NULL; |
675 | } |
676 | return ptr; |
677 | } |
678 | |
679 | static inline struct scsi_cmnd *remove_lun_SC(struct scsi_cmnd ** SC, |
680 | int target, int lun) |
681 | { |
682 | struct scsi_cmnd *ptr, *prev; |
683 | |
684 | for (ptr = *SC, prev = NULL; |
685 | ptr && ((ptr->device->id != target) || (ptr->device->lun != lun)); |
686 | prev = ptr, ptr = SCNEXT(ptr)) |
687 | ; |
688 | |
689 | if (ptr) { |
690 | if (prev) |
691 | SCNEXT(prev) = SCNEXT(ptr); |
692 | else |
693 | *SC = SCNEXT(ptr); |
694 | |
695 | SCNEXT(ptr)=NULL; |
696 | } |
697 | |
698 | return ptr; |
699 | } |
700 | |
701 | static inline struct scsi_cmnd *remove_SC(struct scsi_cmnd **SC, |
702 | struct scsi_cmnd *SCp) |
703 | { |
704 | struct scsi_cmnd *ptr, *prev; |
705 | |
706 | for (ptr = *SC, prev = NULL; |
707 | ptr && SCp!=ptr; |
708 | prev = ptr, ptr = SCNEXT(ptr)) |
709 | ; |
710 | |
711 | if (ptr) { |
712 | if (prev) |
713 | SCNEXT(prev) = SCNEXT(ptr); |
714 | else |
715 | *SC = SCNEXT(ptr); |
716 | |
717 | SCNEXT(ptr)=NULL; |
718 | } |
719 | |
720 | return ptr; |
721 | } |
722 | |
723 | static irqreturn_t swintr(int irqno, void *dev_id) |
724 | { |
725 | struct Scsi_Host *shpnt = dev_id; |
726 | |
727 | HOSTDATA(shpnt)->swint++; |
728 | |
729 | SETPORT(DMACNTRL0, INTEN); |
730 | return IRQ_HANDLED; |
731 | } |
732 | |
733 | struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup) |
734 | { |
735 | struct Scsi_Host *shpnt; |
736 | |
737 | shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata)); |
738 | if (!shpnt) { |
739 | printk(KERN_ERR "aha152x: scsi_host_alloc failed\n" ); |
740 | return NULL; |
741 | } |
742 | |
743 | memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt)); |
744 | INIT_LIST_HEAD(list: &HOSTDATA(shpnt)->host_list); |
745 | |
746 | /* need to have host registered before triggering any interrupt */ |
747 | list_add_tail(new: &HOSTDATA(shpnt)->host_list, head: &aha152x_host_list); |
748 | |
749 | shpnt->io_port = setup->io_port; |
750 | shpnt->n_io_port = IO_RANGE; |
751 | shpnt->irq = setup->irq; |
752 | |
753 | if (!setup->tc1550) { |
754 | HOSTIOPORT0 = setup->io_port; |
755 | HOSTIOPORT1 = setup->io_port; |
756 | } else { |
757 | HOSTIOPORT0 = setup->io_port+0x10; |
758 | HOSTIOPORT1 = setup->io_port-0x10; |
759 | } |
760 | |
761 | spin_lock_init(&QLOCK); |
762 | RECONNECT = setup->reconnect; |
763 | SYNCHRONOUS = setup->synchronous; |
764 | PARITY = setup->parity; |
765 | DELAY = setup->delay; |
766 | EXT_TRANS = setup->ext_trans; |
767 | |
768 | SETPORT(SCSIID, setup->scsiid << 4); |
769 | shpnt->this_id = setup->scsiid; |
770 | |
771 | if (setup->reconnect) |
772 | shpnt->can_queue = AHA152X_MAXQUEUE; |
773 | |
774 | /* RESET OUT */ |
775 | printk("aha152x: resetting bus...\n" ); |
776 | SETPORT(SCSISEQ, SCSIRSTO); |
777 | mdelay(256); |
778 | SETPORT(SCSISEQ, 0); |
779 | mdelay(DELAY); |
780 | |
781 | reset_ports(shpnt); |
782 | |
783 | printk(KERN_INFO |
784 | "aha152x%d%s: " |
785 | "vital data: rev=%x, " |
786 | "io=0x%03lx (0x%03lx/0x%03lx), " |
787 | "irq=%d, " |
788 | "scsiid=%d, " |
789 | "reconnect=%s, " |
790 | "parity=%s, " |
791 | "synchronous=%s, " |
792 | "delay=%d, " |
793 | "extended translation=%s\n" , |
794 | shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "" , |
795 | GETPORT(REV) & 0x7, |
796 | shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1, |
797 | shpnt->irq, |
798 | shpnt->this_id, |
799 | RECONNECT ? "enabled" : "disabled" , |
800 | PARITY ? "enabled" : "disabled" , |
801 | SYNCHRONOUS ? "enabled" : "disabled" , |
802 | DELAY, |
803 | EXT_TRANS ? "enabled" : "disabled" ); |
804 | |
805 | /* not expecting any interrupts */ |
806 | SETPORT(SIMODE0, 0); |
807 | SETPORT(SIMODE1, 0); |
808 | |
809 | if (request_irq(irq: shpnt->irq, handler: swintr, IRQF_SHARED, name: "aha152x" , dev: shpnt)) { |
810 | printk(KERN_ERR "aha152x%d: irq %d busy.\n" , shpnt->host_no, shpnt->irq); |
811 | goto out_host_put; |
812 | } |
813 | |
814 | HOSTDATA(shpnt)->swint = 0; |
815 | |
816 | printk(KERN_INFO "aha152x%d: trying software interrupt, " , shpnt->host_no); |
817 | |
818 | mb(); |
819 | SETPORT(DMACNTRL0, SWINT|INTEN); |
820 | mdelay(1000); |
821 | free_irq(shpnt->irq, shpnt); |
822 | |
823 | if (!HOSTDATA(shpnt)->swint) { |
824 | if (TESTHI(DMASTAT, INTSTAT)) { |
825 | printk("lost.\n" ); |
826 | } else { |
827 | printk("failed.\n" ); |
828 | } |
829 | |
830 | SETPORT(DMACNTRL0, INTEN); |
831 | |
832 | printk(KERN_ERR "aha152x%d: irq %d possibly wrong. " |
833 | "Please verify.\n" , shpnt->host_no, shpnt->irq); |
834 | goto out_host_put; |
835 | } |
836 | printk("ok.\n" ); |
837 | |
838 | |
839 | /* clear interrupts */ |
840 | SETPORT(SSTAT0, 0x7f); |
841 | SETPORT(SSTAT1, 0xef); |
842 | |
843 | if (request_irq(irq: shpnt->irq, handler: intr, IRQF_SHARED, name: "aha152x" , dev: shpnt)) { |
844 | printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n" , shpnt->host_no, shpnt->irq); |
845 | goto out_host_put; |
846 | } |
847 | |
848 | if( scsi_add_host(host: shpnt, NULL) ) { |
849 | free_irq(shpnt->irq, shpnt); |
850 | printk(KERN_ERR "aha152x%d: failed to add host.\n" , shpnt->host_no); |
851 | goto out_host_put; |
852 | } |
853 | |
854 | scsi_scan_host(shpnt); |
855 | |
856 | return shpnt; |
857 | |
858 | out_host_put: |
859 | list_del(entry: &HOSTDATA(shpnt)->host_list); |
860 | scsi_host_put(t: shpnt); |
861 | |
862 | return NULL; |
863 | } |
864 | |
865 | void aha152x_release(struct Scsi_Host *shpnt) |
866 | { |
867 | if (!shpnt) |
868 | return; |
869 | |
870 | scsi_remove_host(shpnt); |
871 | if (shpnt->irq) |
872 | free_irq(shpnt->irq, shpnt); |
873 | |
874 | #if !defined(AHA152X_PCMCIA) |
875 | if (shpnt->io_port) |
876 | release_region(shpnt->io_port, IO_RANGE); |
877 | #endif |
878 | |
879 | #ifdef __ISAPNP__ |
880 | if (HOSTDATA(shpnt)->pnpdev) |
881 | pnp_device_detach(HOSTDATA(shpnt)->pnpdev); |
882 | #endif |
883 | |
884 | list_del(entry: &HOSTDATA(shpnt)->host_list); |
885 | scsi_host_put(t: shpnt); |
886 | } |
887 | |
888 | |
889 | /* |
890 | * setup controller to generate interrupts depending |
891 | * on current state (lock has to be acquired) |
892 | * |
893 | */ |
894 | static int setup_expected_interrupts(struct Scsi_Host *shpnt) |
895 | { |
896 | if(CURRENT_SC) { |
897 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
898 | |
899 | acp->phase |= 1 << 16; |
900 | |
901 | if (acp->phase & selecting) { |
902 | SETPORT(SSTAT1, SELTO); |
903 | SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0)); |
904 | SETPORT(SIMODE1, ENSELTIMO); |
905 | } else { |
906 | SETPORT(SIMODE0, (acp->phase & spiordy) ? ENSPIORDY : 0); |
907 | SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); |
908 | } |
909 | } else if(STATE==seldi) { |
910 | SETPORT(SIMODE0, 0); |
911 | SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); |
912 | } else { |
913 | SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0); |
914 | SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0)); |
915 | } |
916 | |
917 | if(!HOSTDATA(shpnt)->in_intr) |
918 | SETBITS(DMACNTRL0, INTEN); |
919 | |
920 | return TESTHI(DMASTAT, INTSTAT); |
921 | } |
922 | |
923 | |
924 | /* |
925 | * Queue a command and setup interrupts for a free bus. |
926 | */ |
927 | static int aha152x_internal_queue(struct scsi_cmnd *SCpnt, |
928 | struct completion *complete, int phase) |
929 | { |
930 | struct aha152x_cmd_priv *acp = aha152x_priv(cmd: SCpnt); |
931 | struct Scsi_Host *shpnt = SCpnt->device->host; |
932 | unsigned long flags; |
933 | |
934 | acp->phase = not_issued | phase; |
935 | acp->status = 0x1; /* Illegal status by SCSI standard */ |
936 | acp->message = 0; |
937 | acp->sent_command = 0; |
938 | |
939 | if (acp->phase & (resetting | check_condition)) { |
940 | if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) { |
941 | scmd_printk(KERN_ERR, SCpnt, "cannot reuse command\n" ); |
942 | return FAILED; |
943 | } |
944 | } else { |
945 | SCpnt->host_scribble = kmalloc(size: sizeof(struct aha152x_scdata), GFP_ATOMIC); |
946 | if(!SCpnt->host_scribble) { |
947 | scmd_printk(KERN_ERR, SCpnt, "allocation failed\n" ); |
948 | return FAILED; |
949 | } |
950 | } |
951 | |
952 | SCNEXT(SCpnt) = NULL; |
953 | SCSEM(SCpnt) = complete; |
954 | |
955 | /* setup scratch area |
956 | SCp.ptr : buffer pointer |
957 | SCp.this_residual : buffer length |
958 | SCp.buffer : next buffer |
959 | SCp.phase : current state of the command */ |
960 | |
961 | if ((phase & resetting) || !scsi_sglist(cmd: SCpnt)) { |
962 | acp->ptr = NULL; |
963 | acp->this_residual = 0; |
964 | scsi_set_resid(cmd: SCpnt, resid: 0); |
965 | acp->buffer = NULL; |
966 | } else { |
967 | scsi_set_resid(cmd: SCpnt, resid: scsi_bufflen(cmd: SCpnt)); |
968 | acp->buffer = scsi_sglist(cmd: SCpnt); |
969 | acp->ptr = SG_ADDRESS(acp->buffer); |
970 | acp->this_residual = acp->buffer->length; |
971 | } |
972 | |
973 | DO_LOCK(flags); |
974 | |
975 | #if defined(AHA152X_STAT) |
976 | HOSTDATA(shpnt)->total_commands++; |
977 | #endif |
978 | |
979 | /* Turn led on, when this is the first command. */ |
980 | HOSTDATA(shpnt)->commands++; |
981 | if (HOSTDATA(shpnt)->commands==1) |
982 | SETPORT(PORTA, 1); |
983 | |
984 | append_SC(SC: &ISSUE_SC, new_SC: SCpnt); |
985 | |
986 | if(!HOSTDATA(shpnt)->in_intr) |
987 | setup_expected_interrupts(shpnt); |
988 | |
989 | DO_UNLOCK(flags); |
990 | |
991 | return 0; |
992 | } |
993 | |
994 | /* |
995 | * queue a command |
996 | * |
997 | */ |
998 | static int aha152x_queue_lck(struct scsi_cmnd *SCpnt) |
999 | { |
1000 | return aha152x_internal_queue(SCpnt, NULL, phase: 0); |
1001 | } |
1002 | |
1003 | static DEF_SCSI_QCMD(aha152x_queue) |
1004 | |
1005 | |
1006 | /* |
1007 | * |
1008 | */ |
1009 | static void reset_done(struct scsi_cmnd *SCpnt) |
1010 | { |
1011 | if(SCSEM(SCpnt)) { |
1012 | complete(SCSEM(SCpnt)); |
1013 | } else { |
1014 | printk(KERN_ERR "aha152x: reset_done w/o completion\n" ); |
1015 | } |
1016 | } |
1017 | |
1018 | static void aha152x_scsi_done(struct scsi_cmnd *SCpnt) |
1019 | { |
1020 | if (aha152x_priv(cmd: SCpnt)->phase & resetting) |
1021 | reset_done(SCpnt); |
1022 | else |
1023 | scsi_done(cmd: SCpnt); |
1024 | } |
1025 | |
1026 | /* |
1027 | * Abort a command |
1028 | * |
1029 | */ |
1030 | static int aha152x_abort(struct scsi_cmnd *SCpnt) |
1031 | { |
1032 | struct Scsi_Host *shpnt = SCpnt->device->host; |
1033 | struct scsi_cmnd *ptr; |
1034 | unsigned long flags; |
1035 | |
1036 | DO_LOCK(flags); |
1037 | |
1038 | ptr=remove_SC(SC: &ISSUE_SC, SCp: SCpnt); |
1039 | |
1040 | if(ptr) { |
1041 | HOSTDATA(shpnt)->commands--; |
1042 | if (!HOSTDATA(shpnt)->commands) |
1043 | SETPORT(PORTA, 0); |
1044 | DO_UNLOCK(flags); |
1045 | |
1046 | kfree(objp: SCpnt->host_scribble); |
1047 | SCpnt->host_scribble=NULL; |
1048 | |
1049 | return SUCCESS; |
1050 | } |
1051 | |
1052 | DO_UNLOCK(flags); |
1053 | |
1054 | /* |
1055 | * FIXME: |
1056 | * for current command: queue ABORT for message out and raise ATN |
1057 | * for disconnected command: pseudo SC with ABORT message or ABORT on reselection? |
1058 | * |
1059 | */ |
1060 | |
1061 | scmd_printk(KERN_ERR, SCpnt, |
1062 | "cannot abort running or disconnected command\n" ); |
1063 | |
1064 | return FAILED; |
1065 | } |
1066 | |
1067 | /* |
1068 | * Reset a device |
1069 | * |
1070 | */ |
1071 | static int aha152x_device_reset(struct scsi_cmnd * SCpnt) |
1072 | { |
1073 | struct Scsi_Host *shpnt = SCpnt->device->host; |
1074 | DECLARE_COMPLETION(done); |
1075 | int ret, issued, disconnected; |
1076 | unsigned char old_cmd_len = SCpnt->cmd_len; |
1077 | unsigned long flags; |
1078 | unsigned long timeleft; |
1079 | |
1080 | if(CURRENT_SC==SCpnt) { |
1081 | scmd_printk(KERN_ERR, SCpnt, "cannot reset current device\n" ); |
1082 | return FAILED; |
1083 | } |
1084 | |
1085 | DO_LOCK(flags); |
1086 | issued = remove_SC(SC: &ISSUE_SC, SCp: SCpnt) == NULL; |
1087 | disconnected = issued && remove_SC(SC: &DISCONNECTED_SC, SCp: SCpnt); |
1088 | DO_UNLOCK(flags); |
1089 | |
1090 | SCpnt->cmd_len = 0; |
1091 | |
1092 | aha152x_internal_queue(SCpnt, complete: &done, phase: resetting); |
1093 | |
1094 | timeleft = wait_for_completion_timeout(x: &done, timeout: 100*HZ); |
1095 | if (!timeleft) { |
1096 | /* remove command from issue queue */ |
1097 | DO_LOCK(flags); |
1098 | remove_SC(SC: &ISSUE_SC, SCp: SCpnt); |
1099 | DO_UNLOCK(flags); |
1100 | } |
1101 | |
1102 | SCpnt->cmd_len = old_cmd_len; |
1103 | |
1104 | DO_LOCK(flags); |
1105 | |
1106 | if (aha152x_priv(cmd: SCpnt)->phase & resetted) { |
1107 | HOSTDATA(shpnt)->commands--; |
1108 | if (!HOSTDATA(shpnt)->commands) |
1109 | SETPORT(PORTA, 0); |
1110 | kfree(objp: SCpnt->host_scribble); |
1111 | SCpnt->host_scribble=NULL; |
1112 | |
1113 | ret = SUCCESS; |
1114 | } else { |
1115 | /* requeue */ |
1116 | if(!issued) { |
1117 | append_SC(SC: &ISSUE_SC, new_SC: SCpnt); |
1118 | } else if(disconnected) { |
1119 | append_SC(SC: &DISCONNECTED_SC, new_SC: SCpnt); |
1120 | } |
1121 | |
1122 | ret = FAILED; |
1123 | } |
1124 | |
1125 | DO_UNLOCK(flags); |
1126 | return ret; |
1127 | } |
1128 | |
1129 | static void free_hard_reset_SCs(struct Scsi_Host *shpnt, |
1130 | struct scsi_cmnd **SCs) |
1131 | { |
1132 | struct scsi_cmnd *ptr; |
1133 | |
1134 | ptr=*SCs; |
1135 | while(ptr) { |
1136 | struct scsi_cmnd *next; |
1137 | |
1138 | if(SCDATA(ptr)) { |
1139 | next = SCNEXT(ptr); |
1140 | } else { |
1141 | scmd_printk(KERN_DEBUG, ptr, |
1142 | "queue corrupted at %p\n" , ptr); |
1143 | next = NULL; |
1144 | } |
1145 | |
1146 | if (!ptr->device->soft_reset) { |
1147 | remove_SC(SC: SCs, SCp: ptr); |
1148 | HOSTDATA(shpnt)->commands--; |
1149 | kfree(objp: ptr->host_scribble); |
1150 | ptr->host_scribble=NULL; |
1151 | } |
1152 | |
1153 | ptr = next; |
1154 | } |
1155 | } |
1156 | |
1157 | /* |
1158 | * Reset the bus |
1159 | * |
1160 | * AIC-6260 has a hard reset (MRST signal), but apparently |
1161 | * one cannot trigger it via software. So live with |
1162 | * a soft reset; no-one seemed to have cared. |
1163 | */ |
1164 | static int aha152x_bus_reset_host(struct Scsi_Host *shpnt) |
1165 | { |
1166 | unsigned long flags; |
1167 | |
1168 | DO_LOCK(flags); |
1169 | |
1170 | free_hard_reset_SCs(shpnt, SCs: &ISSUE_SC); |
1171 | free_hard_reset_SCs(shpnt, SCs: &DISCONNECTED_SC); |
1172 | |
1173 | SETPORT(SCSISEQ, SCSIRSTO); |
1174 | mdelay(256); |
1175 | SETPORT(SCSISEQ, 0); |
1176 | mdelay(DELAY); |
1177 | |
1178 | setup_expected_interrupts(shpnt); |
1179 | if(HOSTDATA(shpnt)->commands==0) |
1180 | SETPORT(PORTA, 0); |
1181 | |
1182 | DO_UNLOCK(flags); |
1183 | |
1184 | return SUCCESS; |
1185 | } |
1186 | |
1187 | /* |
1188 | * Reset the bus |
1189 | * |
1190 | */ |
1191 | static int aha152x_bus_reset(struct scsi_cmnd *SCpnt) |
1192 | { |
1193 | return aha152x_bus_reset_host(shpnt: SCpnt->device->host); |
1194 | } |
1195 | |
1196 | /* |
1197 | * Restore default values to the AIC-6260 registers and reset the fifos |
1198 | * |
1199 | */ |
1200 | static void reset_ports(struct Scsi_Host *shpnt) |
1201 | { |
1202 | unsigned long flags; |
1203 | |
1204 | /* disable interrupts */ |
1205 | SETPORT(DMACNTRL0, RSTFIFO); |
1206 | |
1207 | SETPORT(SCSISEQ, 0); |
1208 | |
1209 | SETPORT(SXFRCTL1, 0); |
1210 | SETPORT(SCSISIG, 0); |
1211 | SETRATE(0); |
1212 | |
1213 | /* clear all interrupt conditions */ |
1214 | SETPORT(SSTAT0, 0x7f); |
1215 | SETPORT(SSTAT1, 0xef); |
1216 | |
1217 | SETPORT(SSTAT4, SYNCERR | FWERR | FRERR); |
1218 | |
1219 | SETPORT(DMACNTRL0, 0); |
1220 | SETPORT(DMACNTRL1, 0); |
1221 | |
1222 | SETPORT(BRSTCNTRL, 0xf1); |
1223 | |
1224 | /* clear SCSI fifos and transfer count */ |
1225 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); |
1226 | SETPORT(SXFRCTL0, CH1); |
1227 | |
1228 | DO_LOCK(flags); |
1229 | setup_expected_interrupts(shpnt); |
1230 | DO_UNLOCK(flags); |
1231 | } |
1232 | |
1233 | /* |
1234 | * Reset the host (bus and controller) |
1235 | * |
1236 | */ |
1237 | int aha152x_host_reset_host(struct Scsi_Host *shpnt) |
1238 | { |
1239 | aha152x_bus_reset_host(shpnt); |
1240 | reset_ports(shpnt); |
1241 | |
1242 | return SUCCESS; |
1243 | } |
1244 | |
1245 | /* |
1246 | * Return the "logical geometry" |
1247 | * |
1248 | */ |
1249 | static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev, |
1250 | sector_t capacity, int *info_array) |
1251 | { |
1252 | struct Scsi_Host *shpnt = sdev->host; |
1253 | |
1254 | /* try default translation */ |
1255 | info_array[0] = 64; |
1256 | info_array[1] = 32; |
1257 | info_array[2] = (unsigned long)capacity / (64 * 32); |
1258 | |
1259 | /* for disks >1GB do some guessing */ |
1260 | if (info_array[2] >= 1024) { |
1261 | int info[3]; |
1262 | |
1263 | /* try to figure out the geometry from the partition table */ |
1264 | if (scsicam_bios_param(bdev, capacity, ip: info) < 0 || |
1265 | !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) { |
1266 | if (EXT_TRANS) { |
1267 | printk(KERN_NOTICE |
1268 | "aha152x: unable to verify geometry for disk with >1GB.\n" |
1269 | " using extended translation.\n" ); |
1270 | info_array[0] = 255; |
1271 | info_array[1] = 63; |
1272 | info_array[2] = (unsigned long)capacity / (255 * 63); |
1273 | } else { |
1274 | printk(KERN_NOTICE |
1275 | "aha152x: unable to verify geometry for disk with >1GB.\n" |
1276 | " Using default translation. Please verify yourself.\n" |
1277 | " Perhaps you need to enable extended translation in the driver.\n" |
1278 | " See Documentation/scsi/aha152x.rst for details.\n" ); |
1279 | } |
1280 | } else { |
1281 | info_array[0] = info[0]; |
1282 | info_array[1] = info[1]; |
1283 | info_array[2] = info[2]; |
1284 | |
1285 | if (info[0] == 255 && !EXT_TRANS) { |
1286 | printk(KERN_NOTICE |
1287 | "aha152x: current partition table is using extended translation.\n" |
1288 | " using it also, although it's not explicitly enabled.\n" ); |
1289 | } |
1290 | } |
1291 | } |
1292 | |
1293 | return 0; |
1294 | } |
1295 | |
1296 | /* |
1297 | * Internal done function |
1298 | * |
1299 | */ |
1300 | static void done(struct Scsi_Host *shpnt, unsigned char status_byte, |
1301 | unsigned char host_byte) |
1302 | { |
1303 | if (CURRENT_SC) { |
1304 | if(DONE_SC) |
1305 | scmd_printk(KERN_ERR, CURRENT_SC, |
1306 | "there's already a completed command %p " |
1307 | "- will cause abort\n" , DONE_SC); |
1308 | |
1309 | DONE_SC = CURRENT_SC; |
1310 | CURRENT_SC = NULL; |
1311 | set_status_byte(DONE_SC, status: status_byte); |
1312 | set_host_byte(DONE_SC, status: host_byte); |
1313 | } else |
1314 | printk(KERN_ERR "aha152x: done() called outside of command\n" ); |
1315 | } |
1316 | |
1317 | static struct work_struct aha152x_tq; |
1318 | |
1319 | /* |
1320 | * Run service completions on the card with interrupts enabled. |
1321 | * |
1322 | */ |
1323 | static void run(struct work_struct *work) |
1324 | { |
1325 | struct aha152x_hostdata *hd; |
1326 | |
1327 | list_for_each_entry(hd, &aha152x_host_list, host_list) { |
1328 | struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); |
1329 | |
1330 | is_complete(shpnt: shost); |
1331 | } |
1332 | } |
1333 | |
1334 | /* |
1335 | * Interrupt handler |
1336 | * |
1337 | */ |
1338 | static irqreturn_t intr(int irqno, void *dev_id) |
1339 | { |
1340 | struct Scsi_Host *shpnt = dev_id; |
1341 | unsigned long flags; |
1342 | unsigned char rev, dmacntrl0; |
1343 | |
1344 | /* |
1345 | * Read a couple of registers that are known to not be all 1's. If |
1346 | * we read all 1's (-1), that means that either: |
1347 | * |
1348 | * a. The host adapter chip has gone bad, and we cannot control it, |
1349 | * OR |
1350 | * b. The host adapter is a PCMCIA card that has been ejected |
1351 | * |
1352 | * In either case, we cannot do anything with the host adapter at |
1353 | * this point in time. So just ignore the interrupt and return. |
1354 | * In the latter case, the interrupt might actually be meant for |
1355 | * someone else sharing this IRQ, and that driver will handle it. |
1356 | */ |
1357 | rev = GETPORT(REV); |
1358 | dmacntrl0 = GETPORT(DMACNTRL0); |
1359 | if ((rev == 0xFF) && (dmacntrl0 == 0xFF)) |
1360 | return IRQ_NONE; |
1361 | |
1362 | if( TESTLO(DMASTAT, INTSTAT) ) |
1363 | return IRQ_NONE; |
1364 | |
1365 | /* no more interrupts from the controller, while we're busy. |
1366 | INTEN is restored by the BH handler */ |
1367 | CLRBITS(DMACNTRL0, INTEN); |
1368 | |
1369 | DO_LOCK(flags); |
1370 | if( HOSTDATA(shpnt)->service==0 ) { |
1371 | HOSTDATA(shpnt)->service=1; |
1372 | |
1373 | /* Poke the BH handler */ |
1374 | INIT_WORK(&aha152x_tq, run); |
1375 | schedule_work(work: &aha152x_tq); |
1376 | } |
1377 | DO_UNLOCK(flags); |
1378 | |
1379 | return IRQ_HANDLED; |
1380 | } |
1381 | |
1382 | /* |
1383 | * busfree phase |
1384 | * - handle completition/disconnection/error of current command |
1385 | * - start selection for next command (if any) |
1386 | */ |
1387 | static void busfree_run(struct Scsi_Host *shpnt) |
1388 | { |
1389 | unsigned long flags; |
1390 | #if defined(AHA152X_STAT) |
1391 | int action=0; |
1392 | #endif |
1393 | |
1394 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); |
1395 | SETPORT(SXFRCTL0, CH1); |
1396 | |
1397 | SETPORT(SSTAT1, CLRBUSFREE); |
1398 | |
1399 | if(CURRENT_SC) { |
1400 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
1401 | |
1402 | #if defined(AHA152X_STAT) |
1403 | action++; |
1404 | #endif |
1405 | acp->phase &= ~syncneg; |
1406 | |
1407 | if (acp->phase & completed) { |
1408 | /* target sent COMMAND COMPLETE */ |
1409 | done(shpnt, status_byte: acp->status, host_byte: DID_OK); |
1410 | |
1411 | } else if (acp->phase & aborted) { |
1412 | done(shpnt, status_byte: acp->status, host_byte: DID_ABORT); |
1413 | |
1414 | } else if (acp->phase & resetted) { |
1415 | done(shpnt, status_byte: acp->status, host_byte: DID_RESET); |
1416 | |
1417 | } else if (acp->phase & disconnected) { |
1418 | /* target sent DISCONNECT */ |
1419 | #if defined(AHA152X_STAT) |
1420 | HOSTDATA(shpnt)->disconnections++; |
1421 | #endif |
1422 | append_SC(SC: &DISCONNECTED_SC, CURRENT_SC); |
1423 | acp->phase |= 1 << 16; |
1424 | CURRENT_SC = NULL; |
1425 | |
1426 | } else { |
1427 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_ERROR); |
1428 | } |
1429 | #if defined(AHA152X_STAT) |
1430 | } else { |
1431 | HOSTDATA(shpnt)->busfree_without_old_command++; |
1432 | #endif |
1433 | } |
1434 | |
1435 | DO_LOCK(flags); |
1436 | |
1437 | if(DONE_SC) { |
1438 | #if defined(AHA152X_STAT) |
1439 | action++; |
1440 | #endif |
1441 | |
1442 | if (aha152x_priv(DONE_SC)->phase & check_condition) { |
1443 | struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC; |
1444 | struct aha152x_scdata *sc = SCDATA(cmd); |
1445 | |
1446 | scsi_eh_restore_cmnd(scmd: cmd, ses: &sc->ses); |
1447 | |
1448 | aha152x_priv(cmd)->status = SAM_STAT_CHECK_CONDITION; |
1449 | |
1450 | HOSTDATA(shpnt)->commands--; |
1451 | if (!HOSTDATA(shpnt)->commands) |
1452 | SETPORT(PORTA, 0); /* turn led off */ |
1453 | } else if (aha152x_priv(DONE_SC)->status == SAM_STAT_CHECK_CONDITION) { |
1454 | #if defined(AHA152X_STAT) |
1455 | HOSTDATA(shpnt)->busfree_with_check_condition++; |
1456 | #endif |
1457 | |
1458 | if (!(aha152x_priv(DONE_SC)->phase & not_issued)) { |
1459 | struct aha152x_scdata *sc; |
1460 | struct scsi_cmnd *ptr = DONE_SC; |
1461 | DONE_SC=NULL; |
1462 | |
1463 | sc = SCDATA(ptr); |
1464 | /* It was allocated in aha152x_internal_queue? */ |
1465 | BUG_ON(!sc); |
1466 | scsi_eh_prep_cmnd(scmd: ptr, ses: &sc->ses, NULL, cmnd_size: 0, sense_bytes: ~0); |
1467 | |
1468 | DO_UNLOCK(flags); |
1469 | aha152x_internal_queue(SCpnt: ptr, NULL, phase: check_condition); |
1470 | DO_LOCK(flags); |
1471 | } |
1472 | } |
1473 | |
1474 | if (DONE_SC) { |
1475 | struct scsi_cmnd *ptr = DONE_SC; |
1476 | DONE_SC=NULL; |
1477 | |
1478 | /* turn led off, when no commands are in the driver */ |
1479 | HOSTDATA(shpnt)->commands--; |
1480 | if (!HOSTDATA(shpnt)->commands) |
1481 | SETPORT(PORTA, 0); /* turn led off */ |
1482 | |
1483 | if (!(aha152x_priv(cmd: ptr)->phase & resetting)) { |
1484 | kfree(objp: ptr->host_scribble); |
1485 | ptr->host_scribble=NULL; |
1486 | } |
1487 | |
1488 | DO_UNLOCK(flags); |
1489 | aha152x_scsi_done(SCpnt: ptr); |
1490 | DO_LOCK(flags); |
1491 | } |
1492 | |
1493 | DONE_SC=NULL; |
1494 | #if defined(AHA152X_STAT) |
1495 | } else { |
1496 | HOSTDATA(shpnt)->busfree_without_done_command++; |
1497 | #endif |
1498 | } |
1499 | |
1500 | if(ISSUE_SC) |
1501 | CURRENT_SC = remove_first_SC(SC: &ISSUE_SC); |
1502 | |
1503 | DO_UNLOCK(flags); |
1504 | |
1505 | if(CURRENT_SC) { |
1506 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
1507 | |
1508 | #if defined(AHA152X_STAT) |
1509 | action++; |
1510 | #endif |
1511 | acp->phase |= selecting; |
1512 | |
1513 | /* clear selection timeout */ |
1514 | SETPORT(SSTAT1, SELTO); |
1515 | |
1516 | SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id); |
1517 | SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER); |
1518 | SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0)); |
1519 | } else { |
1520 | #if defined(AHA152X_STAT) |
1521 | HOSTDATA(shpnt)->busfree_without_new_command++; |
1522 | #endif |
1523 | SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0); |
1524 | } |
1525 | |
1526 | #if defined(AHA152X_STAT) |
1527 | if(!action) |
1528 | HOSTDATA(shpnt)->busfree_without_any_action++; |
1529 | #endif |
1530 | } |
1531 | |
1532 | /* |
1533 | * Selection done (OUT) |
1534 | * - queue IDENTIFY message and SDTR to selected target for message out |
1535 | * (ATN asserted automagically via ENAUTOATNO in busfree()) |
1536 | */ |
1537 | static void seldo_run(struct Scsi_Host *shpnt) |
1538 | { |
1539 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
1540 | |
1541 | SETPORT(SCSISIG, 0); |
1542 | SETPORT(SSTAT1, CLRBUSFREE); |
1543 | SETPORT(SSTAT1, CLRPHASECHG); |
1544 | |
1545 | acp->phase &= ~(selecting | not_issued); |
1546 | |
1547 | SETPORT(SCSISEQ, 0); |
1548 | |
1549 | if (TESTLO(SSTAT0, SELDO)) { |
1550 | scmd_printk(KERN_ERR, CURRENT_SC, |
1551 | "aha152x: passing bus free condition\n" ); |
1552 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_NO_CONNECT); |
1553 | return; |
1554 | } |
1555 | |
1556 | SETPORT(SSTAT0, CLRSELDO); |
1557 | |
1558 | ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); |
1559 | |
1560 | if (acp->phase & aborting) { |
1561 | ADDMSGO(ABORT); |
1562 | } else if (acp->phase & resetting) { |
1563 | ADDMSGO(BUS_DEVICE_RESET); |
1564 | } else if (SYNCNEG==0 && SYNCHRONOUS) { |
1565 | acp->phase |= syncneg; |
1566 | MSGOLEN += spi_populate_sync_msg(msg: &MSGO(MSGOLEN), period: 50, offset: 8); |
1567 | SYNCNEG=1; /* negotiation in progress */ |
1568 | } |
1569 | |
1570 | SETRATE(SYNCRATE); |
1571 | } |
1572 | |
1573 | /* |
1574 | * Selection timeout |
1575 | * - return command to mid-level with failure cause |
1576 | * |
1577 | */ |
1578 | static void selto_run(struct Scsi_Host *shpnt) |
1579 | { |
1580 | struct aha152x_cmd_priv *acp; |
1581 | |
1582 | SETPORT(SCSISEQ, 0); |
1583 | SETPORT(SSTAT1, CLRSELTIMO); |
1584 | |
1585 | if (!CURRENT_SC) |
1586 | return; |
1587 | |
1588 | acp = aha152x_priv(CURRENT_SC); |
1589 | acp->phase &= ~selecting; |
1590 | |
1591 | if (acp->phase & aborted) |
1592 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_ABORT); |
1593 | else if (TESTLO(SSTAT0, SELINGO)) |
1594 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_BUS_BUSY); |
1595 | else |
1596 | /* ARBITRATION won, but SELECTION failed */ |
1597 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_NO_CONNECT); |
1598 | } |
1599 | |
1600 | /* |
1601 | * Selection in done |
1602 | * - put current command back to issue queue |
1603 | * (reconnection of a disconnected nexus instead |
1604 | * of successful selection out) |
1605 | * |
1606 | */ |
1607 | static void seldi_run(struct Scsi_Host *shpnt) |
1608 | { |
1609 | int selid; |
1610 | int target; |
1611 | unsigned long flags; |
1612 | |
1613 | SETPORT(SCSISIG, 0); |
1614 | SETPORT(SSTAT0, CLRSELDI); |
1615 | SETPORT(SSTAT1, CLRBUSFREE); |
1616 | SETPORT(SSTAT1, CLRPHASECHG); |
1617 | |
1618 | if(CURRENT_SC) { |
1619 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
1620 | |
1621 | if (!(acp->phase & not_issued)) |
1622 | scmd_printk(KERN_ERR, CURRENT_SC, |
1623 | "command should not have been issued yet\n" ); |
1624 | |
1625 | DO_LOCK(flags); |
1626 | append_SC(SC: &ISSUE_SC, CURRENT_SC); |
1627 | DO_UNLOCK(flags); |
1628 | |
1629 | CURRENT_SC = NULL; |
1630 | } |
1631 | |
1632 | if (!DISCONNECTED_SC) |
1633 | return; |
1634 | |
1635 | RECONN_TARGET=-1; |
1636 | |
1637 | selid = GETPORT(SELID) & ~(1 << shpnt->this_id); |
1638 | |
1639 | if (selid==0) { |
1640 | shost_printk(KERN_INFO, shpnt, |
1641 | "target id unknown (%02x)\n" , selid); |
1642 | return; |
1643 | } |
1644 | |
1645 | for(target=7; !(selid & (1 << target)); target--) |
1646 | ; |
1647 | |
1648 | if(selid & ~(1 << target)) { |
1649 | shost_printk(KERN_INFO, shpnt, |
1650 | "multiple targets reconnected (%02x)\n" , selid); |
1651 | } |
1652 | |
1653 | |
1654 | SETPORT(SCSIID, (shpnt->this_id << OID_) | target); |
1655 | SETPORT(SCSISEQ, 0); |
1656 | |
1657 | SETRATE(HOSTDATA(shpnt)->syncrate[target]); |
1658 | |
1659 | RECONN_TARGET=target; |
1660 | } |
1661 | |
1662 | /* |
1663 | * message in phase |
1664 | * - handle initial message after reconnection to identify |
1665 | * reconnecting nexus |
1666 | * - queue command on DISCONNECTED_SC on DISCONNECT message |
1667 | * - set completed flag on COMMAND COMPLETE |
1668 | * (other completition code moved to busfree_run) |
1669 | * - handle response to SDTR |
1670 | * - clear synchronous transfer agreements on BUS RESET |
1671 | * |
1672 | * FIXME: what about SAVE POINTERS, RESTORE POINTERS? |
1673 | * |
1674 | */ |
1675 | static void msgi_run(struct Scsi_Host *shpnt) |
1676 | { |
1677 | for(;;) { |
1678 | struct aha152x_cmd_priv *acp; |
1679 | int sstat1 = GETPORT(SSTAT1); |
1680 | |
1681 | if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT)) |
1682 | return; |
1683 | |
1684 | if (TESTLO(SSTAT0, SPIORDY)) |
1685 | return; |
1686 | |
1687 | ADDMSGI(GETPORT(SCSIDAT)); |
1688 | |
1689 | if(!CURRENT_SC) { |
1690 | if(LASTSTATE!=seldi) { |
1691 | shost_printk(KERN_ERR, shpnt, |
1692 | "message in w/o current command" |
1693 | " not after reselection\n" ); |
1694 | } |
1695 | |
1696 | /* |
1697 | * Handle reselection |
1698 | */ |
1699 | if(!(MSGI(0) & IDENTIFY_BASE)) { |
1700 | shost_printk(KERN_ERR, shpnt, |
1701 | "target didn't identify after reselection\n" ); |
1702 | continue; |
1703 | } |
1704 | |
1705 | CURRENT_SC = remove_lun_SC(SC: &DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f); |
1706 | |
1707 | if (!CURRENT_SC) { |
1708 | show_queues(shpnt); |
1709 | shost_printk(KERN_ERR, shpnt, |
1710 | "no disconnected command" |
1711 | " for target %d/%d\n" , |
1712 | RECONN_TARGET, MSGI(0) & 0x3f); |
1713 | continue; |
1714 | } |
1715 | |
1716 | acp = aha152x_priv(CURRENT_SC); |
1717 | acp->message = MSGI(0); |
1718 | acp->phase &= ~disconnected; |
1719 | |
1720 | MSGILEN=0; |
1721 | |
1722 | /* next message if any */ |
1723 | continue; |
1724 | } |
1725 | |
1726 | acp = aha152x_priv(CURRENT_SC); |
1727 | acp->message = MSGI(0); |
1728 | |
1729 | switch (MSGI(0)) { |
1730 | case DISCONNECT: |
1731 | if (!RECONNECT) |
1732 | scmd_printk(KERN_WARNING, CURRENT_SC, |
1733 | "target was not allowed to disconnect\n" ); |
1734 | |
1735 | acp->phase |= disconnected; |
1736 | break; |
1737 | |
1738 | case COMMAND_COMPLETE: |
1739 | acp->phase |= completed; |
1740 | break; |
1741 | |
1742 | case MESSAGE_REJECT: |
1743 | if (SYNCNEG==1) { |
1744 | scmd_printk(KERN_INFO, CURRENT_SC, |
1745 | "Synchronous Data Transfer Request" |
1746 | " was rejected\n" ); |
1747 | SYNCNEG=2; /* negotiation completed */ |
1748 | } else |
1749 | scmd_printk(KERN_INFO, CURRENT_SC, |
1750 | "inbound message (MESSAGE REJECT)\n" ); |
1751 | break; |
1752 | |
1753 | case SAVE_POINTERS: |
1754 | break; |
1755 | |
1756 | case RESTORE_POINTERS: |
1757 | break; |
1758 | |
1759 | case EXTENDED_MESSAGE: |
1760 | if(MSGILEN<2 || MSGILEN<MSGI(1)+2) { |
1761 | /* not yet completed */ |
1762 | continue; |
1763 | } |
1764 | |
1765 | switch (MSGI(2)) { |
1766 | case EXTENDED_SDTR: |
1767 | { |
1768 | long ticks; |
1769 | |
1770 | if (MSGI(1) != 3) { |
1771 | scmd_printk(KERN_ERR, CURRENT_SC, |
1772 | "SDTR message length!=3\n" ); |
1773 | break; |
1774 | } |
1775 | |
1776 | if (!HOSTDATA(shpnt)->synchronous) |
1777 | break; |
1778 | |
1779 | printk(INFO_LEAD, CMDINFO(CURRENT_SC)); |
1780 | spi_print_msg(&MSGI(0)); |
1781 | printk("\n" ); |
1782 | |
1783 | ticks = (MSGI(3) * 4 + 49) / 50; |
1784 | |
1785 | if (syncneg) { |
1786 | /* negotiation in progress */ |
1787 | if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) { |
1788 | ADDMSGO(MESSAGE_REJECT); |
1789 | scmd_printk(KERN_INFO, |
1790 | CURRENT_SC, |
1791 | "received Synchronous Data Transfer Request invalid - rejected\n" ); |
1792 | break; |
1793 | } |
1794 | |
1795 | SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); |
1796 | } else if (ticks <= 9 && MSGI(4) >= 1) { |
1797 | ADDMSGO(EXTENDED_MESSAGE); |
1798 | ADDMSGO(3); |
1799 | ADDMSGO(EXTENDED_SDTR); |
1800 | if (ticks < 4) { |
1801 | ticks = 4; |
1802 | ADDMSGO(50); |
1803 | } else |
1804 | ADDMSGO(MSGI(3)); |
1805 | |
1806 | if (MSGI(4) > 8) |
1807 | MSGI(4) = 8; |
1808 | |
1809 | ADDMSGO(MSGI(4)); |
1810 | |
1811 | SYNCRATE |= ((ticks - 2) << 4) + MSGI(4); |
1812 | } else { |
1813 | /* requested SDTR is too slow, do it asynchronously */ |
1814 | scmd_printk(KERN_INFO, |
1815 | CURRENT_SC, |
1816 | "Synchronous Data Transfer Request too slow - Rejecting\n" ); |
1817 | ADDMSGO(MESSAGE_REJECT); |
1818 | } |
1819 | |
1820 | /* negotiation completed */ |
1821 | SYNCNEG=2; |
1822 | SETRATE(SYNCRATE); |
1823 | } |
1824 | break; |
1825 | |
1826 | case BUS_DEVICE_RESET: |
1827 | { |
1828 | int i; |
1829 | |
1830 | for(i=0; i<8; i++) { |
1831 | HOSTDATA(shpnt)->syncrate[i]=0; |
1832 | HOSTDATA(shpnt)->syncneg[i]=0; |
1833 | } |
1834 | |
1835 | } |
1836 | break; |
1837 | |
1838 | case EXTENDED_MODIFY_DATA_POINTER: |
1839 | case EXTENDED_EXTENDED_IDENTIFY: |
1840 | case EXTENDED_WDTR: |
1841 | default: |
1842 | ADDMSGO(MESSAGE_REJECT); |
1843 | break; |
1844 | } |
1845 | break; |
1846 | } |
1847 | |
1848 | MSGILEN=0; |
1849 | } |
1850 | } |
1851 | |
1852 | static void msgi_end(struct Scsi_Host *shpnt) |
1853 | { |
1854 | if(MSGILEN>0) |
1855 | scmd_printk(KERN_WARNING, CURRENT_SC, |
1856 | "target left before message completed (%d)\n" , |
1857 | MSGILEN); |
1858 | |
1859 | if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) |
1860 | SETPORT(SCSISIG, P_MSGI | SIG_ATNO); |
1861 | } |
1862 | |
1863 | /* |
1864 | * message out phase |
1865 | * |
1866 | */ |
1867 | static void msgo_init(struct Scsi_Host *shpnt) |
1868 | { |
1869 | if(MSGOLEN==0) { |
1870 | if ((aha152x_priv(CURRENT_SC)->phase & syncneg) && |
1871 | SYNCNEG == 2 && SYNCRATE == 0) { |
1872 | ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun)); |
1873 | } else { |
1874 | scmd_printk(KERN_INFO, CURRENT_SC, |
1875 | "unexpected MESSAGE OUT phase; rejecting\n" ); |
1876 | ADDMSGO(MESSAGE_REJECT); |
1877 | } |
1878 | } |
1879 | |
1880 | } |
1881 | |
1882 | /* |
1883 | * message out phase |
1884 | * |
1885 | */ |
1886 | static void msgo_run(struct Scsi_Host *shpnt) |
1887 | { |
1888 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
1889 | |
1890 | while(MSGO_I<MSGOLEN) { |
1891 | if (TESTLO(SSTAT0, SPIORDY)) |
1892 | return; |
1893 | |
1894 | if (MSGO_I==MSGOLEN-1) { |
1895 | /* Leave MESSAGE OUT after transfer */ |
1896 | SETPORT(SSTAT1, CLRATNO); |
1897 | } |
1898 | |
1899 | |
1900 | if (MSGO(MSGO_I) & IDENTIFY_BASE) |
1901 | acp->phase |= identified; |
1902 | |
1903 | if (MSGO(MSGO_I)==ABORT) |
1904 | acp->phase |= aborted; |
1905 | |
1906 | if (MSGO(MSGO_I)==BUS_DEVICE_RESET) |
1907 | acp->phase |= resetted; |
1908 | |
1909 | SETPORT(SCSIDAT, MSGO(MSGO_I++)); |
1910 | } |
1911 | } |
1912 | |
1913 | static void msgo_end(struct Scsi_Host *shpnt) |
1914 | { |
1915 | if(MSGO_I<MSGOLEN) { |
1916 | scmd_printk(KERN_ERR, CURRENT_SC, |
1917 | "message sent incompletely (%d/%d)\n" , |
1918 | MSGO_I, MSGOLEN); |
1919 | if(SYNCNEG==1) { |
1920 | scmd_printk(KERN_INFO, CURRENT_SC, |
1921 | "Synchronous Data Transfer Request was rejected\n" ); |
1922 | SYNCNEG=2; |
1923 | } |
1924 | } |
1925 | |
1926 | MSGO_I = 0; |
1927 | MSGOLEN = 0; |
1928 | } |
1929 | |
1930 | /* |
1931 | * command phase |
1932 | * |
1933 | */ |
1934 | static void cmd_init(struct Scsi_Host *shpnt) |
1935 | { |
1936 | if (aha152x_priv(CURRENT_SC)->sent_command) { |
1937 | scmd_printk(KERN_ERR, CURRENT_SC, |
1938 | "command already sent\n" ); |
1939 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_ERROR); |
1940 | return; |
1941 | } |
1942 | |
1943 | CMD_I=0; |
1944 | } |
1945 | |
1946 | /* |
1947 | * command phase |
1948 | * |
1949 | */ |
1950 | static void cmd_run(struct Scsi_Host *shpnt) |
1951 | { |
1952 | while(CMD_I<CURRENT_SC->cmd_len) { |
1953 | if (TESTLO(SSTAT0, SPIORDY)) |
1954 | return; |
1955 | |
1956 | SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]); |
1957 | } |
1958 | } |
1959 | |
1960 | static void cmd_end(struct Scsi_Host *shpnt) |
1961 | { |
1962 | if(CMD_I<CURRENT_SC->cmd_len) |
1963 | scmd_printk(KERN_ERR, CURRENT_SC, |
1964 | "command sent incompletely (%d/%d)\n" , |
1965 | CMD_I, CURRENT_SC->cmd_len); |
1966 | else |
1967 | aha152x_priv(CURRENT_SC)->sent_command++; |
1968 | } |
1969 | |
1970 | /* |
1971 | * status phase |
1972 | * |
1973 | */ |
1974 | static void status_run(struct Scsi_Host *shpnt) |
1975 | { |
1976 | if (TESTLO(SSTAT0, SPIORDY)) |
1977 | return; |
1978 | |
1979 | aha152x_priv(CURRENT_SC)->status = GETPORT(SCSIDAT); |
1980 | |
1981 | } |
1982 | |
1983 | /* |
1984 | * data in phase |
1985 | * |
1986 | */ |
1987 | static void datai_init(struct Scsi_Host *shpnt) |
1988 | { |
1989 | SETPORT(DMACNTRL0, RSTFIFO); |
1990 | SETPORT(DMACNTRL0, RSTFIFO|ENDMA); |
1991 | |
1992 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); |
1993 | SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); |
1994 | |
1995 | SETPORT(SIMODE0, 0); |
1996 | SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE); |
1997 | |
1998 | DATA_LEN=0; |
1999 | } |
2000 | |
2001 | static void datai_run(struct Scsi_Host *shpnt) |
2002 | { |
2003 | struct aha152x_cmd_priv *acp; |
2004 | unsigned long the_time; |
2005 | int fifodata, data_count; |
2006 | |
2007 | /* |
2008 | * loop while the phase persists or the fifos are not empty |
2009 | * |
2010 | */ |
2011 | while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) { |
2012 | /* FIXME: maybe this should be done by setting up |
2013 | * STCNT to trigger ENSWRAP interrupt, instead of |
2014 | * polling for DFIFOFULL |
2015 | */ |
2016 | the_time=jiffies + 100*HZ; |
2017 | while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time)) |
2018 | barrier(); |
2019 | |
2020 | if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) { |
2021 | scmd_printk(KERN_ERR, CURRENT_SC, "datai timeout\n" ); |
2022 | break; |
2023 | } |
2024 | |
2025 | if(TESTHI(DMASTAT, DFIFOFULL)) { |
2026 | fifodata = 128; |
2027 | } else { |
2028 | the_time=jiffies + 100*HZ; |
2029 | while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time)) |
2030 | barrier(); |
2031 | |
2032 | if(TESTLO(SSTAT2, SEMPTY)) { |
2033 | scmd_printk(KERN_ERR, CURRENT_SC, |
2034 | "datai sempty timeout" ); |
2035 | break; |
2036 | } |
2037 | |
2038 | fifodata = GETPORT(FIFOSTAT); |
2039 | } |
2040 | |
2041 | acp = aha152x_priv(CURRENT_SC); |
2042 | if (acp->this_residual > 0) { |
2043 | while (fifodata > 0 && acp->this_residual > 0) { |
2044 | data_count = fifodata > acp->this_residual ? |
2045 | acp->this_residual : fifodata; |
2046 | fifodata -= data_count; |
2047 | |
2048 | if (data_count & 1) { |
2049 | SETPORT(DMACNTRL0, ENDMA|_8BIT); |
2050 | *acp->ptr++ = GETPORT(DATAPORT); |
2051 | acp->this_residual--; |
2052 | DATA_LEN++; |
2053 | SETPORT(DMACNTRL0, ENDMA); |
2054 | } |
2055 | |
2056 | if (data_count > 1) { |
2057 | data_count >>= 1; |
2058 | insw(DATAPORT, addr: acp->ptr, count: data_count); |
2059 | acp->ptr += 2 * data_count; |
2060 | acp->this_residual -= 2 * data_count; |
2061 | DATA_LEN += 2 * data_count; |
2062 | } |
2063 | |
2064 | if (acp->this_residual == 0 && |
2065 | !sg_is_last(sg: acp->buffer)) { |
2066 | /* advance to next buffer */ |
2067 | acp->buffer = sg_next(acp->buffer); |
2068 | acp->ptr = SG_ADDRESS(acp->buffer); |
2069 | acp->this_residual = acp->buffer->length; |
2070 | } |
2071 | } |
2072 | } else if (fifodata > 0) { |
2073 | scmd_printk(KERN_ERR, CURRENT_SC, |
2074 | "no buffers left for %d(%d) bytes" |
2075 | " (data overrun!?)\n" , |
2076 | fifodata, GETPORT(FIFOSTAT)); |
2077 | SETPORT(DMACNTRL0, ENDMA|_8BIT); |
2078 | while(fifodata>0) { |
2079 | GETPORT(DATAPORT); |
2080 | fifodata--; |
2081 | DATA_LEN++; |
2082 | } |
2083 | SETPORT(DMACNTRL0, ENDMA|_8BIT); |
2084 | } |
2085 | } |
2086 | |
2087 | if(TESTLO(DMASTAT, INTSTAT) || |
2088 | TESTLO(DMASTAT, DFIFOEMP) || |
2089 | TESTLO(SSTAT2, SEMPTY) || |
2090 | GETPORT(FIFOSTAT)>0) { |
2091 | /* |
2092 | * something went wrong, if there's something left in the fifos |
2093 | * or the phase didn't change |
2094 | */ |
2095 | scmd_printk(KERN_ERR, CURRENT_SC, |
2096 | "fifos should be empty and phase should have changed\n" ); |
2097 | } |
2098 | |
2099 | if(DATA_LEN!=GETSTCNT()) { |
2100 | scmd_printk(KERN_ERR, CURRENT_SC, |
2101 | "manual transfer count differs from automatic " |
2102 | "(count=%d;stcnt=%d;diff=%d;fifostat=%d)" , |
2103 | DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, |
2104 | GETPORT(FIFOSTAT)); |
2105 | mdelay(10000); |
2106 | } |
2107 | } |
2108 | |
2109 | static void datai_end(struct Scsi_Host *shpnt) |
2110 | { |
2111 | CMD_INC_RESID(CURRENT_SC, inc: -GETSTCNT()); |
2112 | |
2113 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); |
2114 | SETPORT(DMACNTRL0, 0); |
2115 | } |
2116 | |
2117 | /* |
2118 | * data out phase |
2119 | * |
2120 | */ |
2121 | static void datao_init(struct Scsi_Host *shpnt) |
2122 | { |
2123 | SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO); |
2124 | SETPORT(DMACNTRL0, WRITE_READ | ENDMA); |
2125 | |
2126 | SETPORT(SXFRCTL0, CH1|CLRSTCNT); |
2127 | SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN); |
2128 | |
2129 | SETPORT(SIMODE0, 0); |
2130 | SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE ); |
2131 | |
2132 | DATA_LEN = scsi_get_resid(CURRENT_SC); |
2133 | } |
2134 | |
2135 | static void datao_run(struct Scsi_Host *shpnt) |
2136 | { |
2137 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
2138 | unsigned long the_time; |
2139 | int data_count; |
2140 | |
2141 | /* until phase changes or all data sent */ |
2142 | while (TESTLO(DMASTAT, INTSTAT) && acp->this_residual > 0) { |
2143 | data_count = 128; |
2144 | if (data_count > acp->this_residual) |
2145 | data_count = acp->this_residual; |
2146 | |
2147 | if(TESTLO(DMASTAT, DFIFOEMP)) { |
2148 | scmd_printk(KERN_ERR, CURRENT_SC, |
2149 | "datao fifo not empty (%d)" , |
2150 | GETPORT(FIFOSTAT)); |
2151 | break; |
2152 | } |
2153 | |
2154 | if(data_count & 1) { |
2155 | SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT); |
2156 | SETPORT(DATAPORT, *acp->ptr++); |
2157 | acp->this_residual--; |
2158 | CMD_INC_RESID(CURRENT_SC, inc: -1); |
2159 | SETPORT(DMACNTRL0,WRITE_READ|ENDMA); |
2160 | } |
2161 | |
2162 | if(data_count > 1) { |
2163 | data_count >>= 1; |
2164 | outsw(DATAPORT, addr: acp->ptr, count: data_count); |
2165 | acp->ptr += 2 * data_count; |
2166 | acp->this_residual -= 2 * data_count; |
2167 | CMD_INC_RESID(CURRENT_SC, inc: -2 * data_count); |
2168 | } |
2169 | |
2170 | if (acp->this_residual == 0 && !sg_is_last(sg: acp->buffer)) { |
2171 | /* advance to next buffer */ |
2172 | acp->buffer = sg_next(acp->buffer); |
2173 | acp->ptr = SG_ADDRESS(acp->buffer); |
2174 | acp->this_residual = acp->buffer->length; |
2175 | } |
2176 | |
2177 | the_time=jiffies + 100*HZ; |
2178 | while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time)) |
2179 | barrier(); |
2180 | |
2181 | if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) { |
2182 | scmd_printk(KERN_ERR, CURRENT_SC, "dataout timeout\n" ); |
2183 | break; |
2184 | } |
2185 | } |
2186 | } |
2187 | |
2188 | static void datao_end(struct Scsi_Host *shpnt) |
2189 | { |
2190 | struct aha152x_cmd_priv *acp = aha152x_priv(CURRENT_SC); |
2191 | |
2192 | if(TESTLO(DMASTAT, DFIFOEMP)) { |
2193 | u32 datao_cnt = GETSTCNT(); |
2194 | int datao_out = DATA_LEN - scsi_get_resid(CURRENT_SC); |
2195 | int done; |
2196 | struct scatterlist *sg = scsi_sglist(CURRENT_SC); |
2197 | |
2198 | CMD_INC_RESID(CURRENT_SC, inc: datao_out - datao_cnt); |
2199 | |
2200 | done = scsi_bufflen(CURRENT_SC) - scsi_get_resid(CURRENT_SC); |
2201 | /* Locate the first SG entry not yet sent */ |
2202 | while (done > 0 && !sg_is_last(sg)) { |
2203 | if (done < sg->length) |
2204 | break; |
2205 | done -= sg->length; |
2206 | sg = sg_next(sg); |
2207 | } |
2208 | |
2209 | acp->buffer = sg; |
2210 | acp->ptr = SG_ADDRESS(acp->buffer) + done; |
2211 | acp->this_residual = acp->buffer->length - done; |
2212 | } |
2213 | |
2214 | SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); |
2215 | SETPORT(SXFRCTL0, CH1); |
2216 | |
2217 | SETPORT(DMACNTRL0, 0); |
2218 | } |
2219 | |
2220 | /* |
2221 | * figure out what state we're in |
2222 | * |
2223 | */ |
2224 | static int update_state(struct Scsi_Host *shpnt) |
2225 | { |
2226 | int dataphase=0; |
2227 | unsigned int stat0 = GETPORT(SSTAT0); |
2228 | unsigned int stat1 = GETPORT(SSTAT1); |
2229 | |
2230 | PREVSTATE = STATE; |
2231 | STATE=unknown; |
2232 | |
2233 | if(stat1 & SCSIRSTI) { |
2234 | STATE=rsti; |
2235 | SETPORT(SCSISEQ,0); |
2236 | SETPORT(SSTAT1,SCSIRSTI); |
2237 | } else if (stat0 & SELDI && PREVSTATE == busfree) { |
2238 | STATE=seldi; |
2239 | } else if (stat0 & SELDO && CURRENT_SC && |
2240 | (aha152x_priv(CURRENT_SC)->phase & selecting)) { |
2241 | STATE=seldo; |
2242 | } else if(stat1 & SELTO) { |
2243 | STATE=selto; |
2244 | } else if(stat1 & BUSFREE) { |
2245 | STATE=busfree; |
2246 | SETPORT(SSTAT1,BUSFREE); |
2247 | } else if(stat1 & SCSIPERR) { |
2248 | STATE=parerr; |
2249 | SETPORT(SSTAT1,SCSIPERR); |
2250 | } else if(stat1 & REQINIT) { |
2251 | switch(GETPORT(SCSISIG) & P_MASK) { |
2252 | case P_MSGI: STATE=msgi; break; |
2253 | case P_MSGO: STATE=msgo; break; |
2254 | case P_DATAO: STATE=datao; break; |
2255 | case P_DATAI: STATE=datai; break; |
2256 | case P_STATUS: STATE=status; break; |
2257 | case P_CMD: STATE=cmd; break; |
2258 | } |
2259 | dataphase=1; |
2260 | } |
2261 | |
2262 | if((stat0 & SELDI) && STATE!=seldi && !dataphase) { |
2263 | scmd_printk(KERN_INFO, CURRENT_SC, "reselection missed?" ); |
2264 | } |
2265 | |
2266 | if(STATE!=PREVSTATE) { |
2267 | LASTSTATE=PREVSTATE; |
2268 | } |
2269 | |
2270 | return dataphase; |
2271 | } |
2272 | |
2273 | /* |
2274 | * handle parity error |
2275 | * |
2276 | * FIXME: in which phase? |
2277 | * |
2278 | */ |
2279 | static void parerr_run(struct Scsi_Host *shpnt) |
2280 | { |
2281 | scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n" ); |
2282 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_PARITY); |
2283 | } |
2284 | |
2285 | /* |
2286 | * handle reset in |
2287 | * |
2288 | */ |
2289 | static void rsti_run(struct Scsi_Host *shpnt) |
2290 | { |
2291 | struct scsi_cmnd *ptr; |
2292 | |
2293 | shost_printk(KERN_NOTICE, shpnt, "scsi reset in\n" ); |
2294 | |
2295 | ptr=DISCONNECTED_SC; |
2296 | while(ptr) { |
2297 | struct scsi_cmnd *next = SCNEXT(ptr); |
2298 | |
2299 | if (!ptr->device->soft_reset) { |
2300 | remove_SC(SC: &DISCONNECTED_SC, SCp: ptr); |
2301 | |
2302 | kfree(objp: ptr->host_scribble); |
2303 | ptr->host_scribble=NULL; |
2304 | |
2305 | set_host_byte(cmd: ptr, status: DID_RESET); |
2306 | aha152x_scsi_done(SCpnt: ptr); |
2307 | } |
2308 | |
2309 | ptr = next; |
2310 | } |
2311 | |
2312 | if(CURRENT_SC && !CURRENT_SC->device->soft_reset) |
2313 | done(shpnt, status_byte: SAM_STAT_GOOD, host_byte: DID_RESET); |
2314 | } |
2315 | |
2316 | |
2317 | /* |
2318 | * bottom-half handler |
2319 | * |
2320 | */ |
2321 | static void is_complete(struct Scsi_Host *shpnt) |
2322 | { |
2323 | int dataphase; |
2324 | unsigned long flags; |
2325 | int pending; |
2326 | |
2327 | if(!shpnt) |
2328 | return; |
2329 | |
2330 | DO_LOCK(flags); |
2331 | |
2332 | if( HOSTDATA(shpnt)->service==0 ) { |
2333 | DO_UNLOCK(flags); |
2334 | return; |
2335 | } |
2336 | |
2337 | HOSTDATA(shpnt)->service = 0; |
2338 | |
2339 | if(HOSTDATA(shpnt)->in_intr) { |
2340 | DO_UNLOCK(flags); |
2341 | /* aha152x_error never returns.. */ |
2342 | aha152x_error(shpnt, msg: "bottom-half already running!?" ); |
2343 | } |
2344 | HOSTDATA(shpnt)->in_intr++; |
2345 | |
2346 | /* |
2347 | * loop while there are interrupt conditions pending |
2348 | * |
2349 | */ |
2350 | do { |
2351 | unsigned long start = jiffies; |
2352 | DO_UNLOCK(flags); |
2353 | |
2354 | dataphase=update_state(shpnt); |
2355 | |
2356 | /* |
2357 | * end previous state |
2358 | * |
2359 | */ |
2360 | if(PREVSTATE!=STATE && states[PREVSTATE].end) |
2361 | states[PREVSTATE].end(shpnt); |
2362 | |
2363 | /* |
2364 | * disable SPIO mode if previous phase used it |
2365 | * and this one doesn't |
2366 | * |
2367 | */ |
2368 | if(states[PREVSTATE].spio && !states[STATE].spio) { |
2369 | SETPORT(SXFRCTL0, CH1); |
2370 | SETPORT(DMACNTRL0, 0); |
2371 | if(CURRENT_SC) |
2372 | aha152x_priv(CURRENT_SC)->phase &= ~spiordy; |
2373 | } |
2374 | |
2375 | /* |
2376 | * accept current dataphase phase |
2377 | * |
2378 | */ |
2379 | if(dataphase) { |
2380 | SETPORT(SSTAT0, REQINIT); |
2381 | SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK); |
2382 | SETPORT(SSTAT1, PHASECHG); |
2383 | } |
2384 | |
2385 | /* |
2386 | * enable SPIO mode if previous didn't use it |
2387 | * and this one does |
2388 | * |
2389 | */ |
2390 | if(!states[PREVSTATE].spio && states[STATE].spio) { |
2391 | SETPORT(DMACNTRL0, 0); |
2392 | SETPORT(SXFRCTL0, CH1|SPIOEN); |
2393 | if(CURRENT_SC) |
2394 | aha152x_priv(CURRENT_SC)->phase |= spiordy; |
2395 | } |
2396 | |
2397 | /* |
2398 | * initialize for new state |
2399 | * |
2400 | */ |
2401 | if(PREVSTATE!=STATE && states[STATE].init) |
2402 | states[STATE].init(shpnt); |
2403 | |
2404 | /* |
2405 | * handle current state |
2406 | * |
2407 | */ |
2408 | if(states[STATE].run) |
2409 | states[STATE].run(shpnt); |
2410 | else |
2411 | scmd_printk(KERN_ERR, CURRENT_SC, |
2412 | "unexpected state (%x)\n" , STATE); |
2413 | |
2414 | /* |
2415 | * setup controller to interrupt on |
2416 | * the next expected condition and |
2417 | * loop if it's already there |
2418 | * |
2419 | */ |
2420 | DO_LOCK(flags); |
2421 | pending=setup_expected_interrupts(shpnt); |
2422 | #if defined(AHA152X_STAT) |
2423 | HOSTDATA(shpnt)->count[STATE]++; |
2424 | if(PREVSTATE!=STATE) |
2425 | HOSTDATA(shpnt)->count_trans[STATE]++; |
2426 | HOSTDATA(shpnt)->time[STATE] += jiffies-start; |
2427 | #endif |
2428 | |
2429 | } while(pending); |
2430 | |
2431 | /* |
2432 | * enable interrupts and leave bottom-half |
2433 | * |
2434 | */ |
2435 | HOSTDATA(shpnt)->in_intr--; |
2436 | SETBITS(DMACNTRL0, INTEN); |
2437 | DO_UNLOCK(flags); |
2438 | } |
2439 | |
2440 | |
2441 | /* |
2442 | * Dump the current driver status and panic |
2443 | */ |
2444 | static void aha152x_error(struct Scsi_Host *shpnt, char *msg) |
2445 | { |
2446 | shost_printk(KERN_EMERG, shpnt, "%s\n" , msg); |
2447 | show_queues(shpnt); |
2448 | panic(fmt: "aha152x panic\n" ); |
2449 | } |
2450 | |
2451 | /* |
2452 | * display enabled interrupts |
2453 | */ |
2454 | static void disp_enintr(struct Scsi_Host *shpnt) |
2455 | { |
2456 | int s0, s1; |
2457 | |
2458 | s0 = GETPORT(SIMODE0); |
2459 | s1 = GETPORT(SIMODE1); |
2460 | |
2461 | shost_printk(KERN_DEBUG, shpnt, |
2462 | "enabled interrupts (%s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n" , |
2463 | (s0 & ENSELDO) ? "ENSELDO " : "" , |
2464 | (s0 & ENSELDI) ? "ENSELDI " : "" , |
2465 | (s0 & ENSELINGO) ? "ENSELINGO " : "" , |
2466 | (s0 & ENSWRAP) ? "ENSWRAP " : "" , |
2467 | (s0 & ENSDONE) ? "ENSDONE " : "" , |
2468 | (s0 & ENSPIORDY) ? "ENSPIORDY " : "" , |
2469 | (s0 & ENDMADONE) ? "ENDMADONE " : "" , |
2470 | (s1 & ENSELTIMO) ? "ENSELTIMO " : "" , |
2471 | (s1 & ENATNTARG) ? "ENATNTARG " : "" , |
2472 | (s1 & ENPHASEMIS) ? "ENPHASEMIS " : "" , |
2473 | (s1 & ENBUSFREE) ? "ENBUSFREE " : "" , |
2474 | (s1 & ENSCSIPERR) ? "ENSCSIPERR " : "" , |
2475 | (s1 & ENPHASECHG) ? "ENPHASECHG " : "" , |
2476 | (s1 & ENREQINIT) ? "ENREQINIT " : "" ); |
2477 | } |
2478 | |
2479 | /* |
2480 | * Show the command data of a command |
2481 | */ |
2482 | static void show_command(struct scsi_cmnd *ptr) |
2483 | { |
2484 | const int phase = aha152x_priv(cmd: ptr)->phase; |
2485 | |
2486 | scsi_print_command(ptr); |
2487 | scmd_printk(KERN_DEBUG, ptr, |
2488 | "request_bufflen=%d; resid=%d; " |
2489 | "phase |%s%s%s%s%s%s%s%s%s; next=0x%p" , |
2490 | scsi_bufflen(cmd: ptr), scsi_get_resid(cmd: ptr), |
2491 | phase & not_issued ? "not issued|" : "" , |
2492 | phase & selecting ? "selecting|" : "" , |
2493 | phase & identified ? "identified|" : "" , |
2494 | phase & disconnected ? "disconnected|" : "" , |
2495 | phase & completed ? "completed|" : "" , |
2496 | phase & spiordy ? "spiordy|" : "" , |
2497 | phase & syncneg ? "syncneg|" : "" , |
2498 | phase & aborted ? "aborted|" : "" , |
2499 | phase & resetted ? "resetted|" : "" , |
2500 | SCDATA(ptr) ? SCNEXT(ptr) : NULL); |
2501 | } |
2502 | |
2503 | /* |
2504 | * Dump the queued data |
2505 | */ |
2506 | static void show_queues(struct Scsi_Host *shpnt) |
2507 | { |
2508 | struct scsi_cmnd *ptr; |
2509 | unsigned long flags; |
2510 | |
2511 | DO_LOCK(flags); |
2512 | printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n" ); |
2513 | for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) |
2514 | show_command(ptr); |
2515 | DO_UNLOCK(flags); |
2516 | |
2517 | printk(KERN_DEBUG "current_SC:\n" ); |
2518 | if (CURRENT_SC) |
2519 | show_command(CURRENT_SC); |
2520 | else |
2521 | printk(KERN_DEBUG "none\n" ); |
2522 | |
2523 | printk(KERN_DEBUG "disconnected_SC:\n" ); |
2524 | for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL) |
2525 | show_command(ptr); |
2526 | |
2527 | disp_enintr(shpnt); |
2528 | } |
2529 | |
2530 | static void get_command(struct seq_file *m, struct scsi_cmnd * ptr) |
2531 | { |
2532 | struct aha152x_cmd_priv *acp = aha152x_priv(cmd: ptr); |
2533 | const int phase = acp->phase; |
2534 | int i; |
2535 | |
2536 | seq_printf(m, fmt: "%p: target=%d; lun=%d; cmnd=( " , |
2537 | ptr, ptr->device->id, (u8)ptr->device->lun); |
2538 | |
2539 | for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++) |
2540 | seq_printf(m, fmt: "0x%02x " , ptr->cmnd[i]); |
2541 | |
2542 | seq_printf(m, fmt: "); resid=%d; residual=%d; buffers=%d; phase |" , |
2543 | scsi_get_resid(cmd: ptr), acp->this_residual, |
2544 | sg_nents(sg: acp->buffer) - 1); |
2545 | |
2546 | if (phase & not_issued) |
2547 | seq_puts(m, s: "not issued|" ); |
2548 | if (phase & selecting) |
2549 | seq_puts(m, s: "selecting|" ); |
2550 | if (phase & disconnected) |
2551 | seq_puts(m, s: "disconnected|" ); |
2552 | if (phase & aborted) |
2553 | seq_puts(m, s: "aborted|" ); |
2554 | if (phase & identified) |
2555 | seq_puts(m, s: "identified|" ); |
2556 | if (phase & completed) |
2557 | seq_puts(m, s: "completed|" ); |
2558 | if (phase & spiordy) |
2559 | seq_puts(m, s: "spiordy|" ); |
2560 | if (phase & syncneg) |
2561 | seq_puts(m, s: "syncneg|" ); |
2562 | seq_printf(m, fmt: "; next=0x%p\n" , SCNEXT(ptr)); |
2563 | } |
2564 | |
2565 | static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt) |
2566 | { |
2567 | int s; |
2568 | |
2569 | seq_printf(m, fmt: "\n%s: %s(%s) " , CURRENT_SC ? "on bus" : "waiting" , states[STATE].name, states[PREVSTATE].name); |
2570 | |
2571 | s = GETPORT(SCSISEQ); |
2572 | seq_puts(m, s: "SCSISEQ( " ); |
2573 | if (s & TEMODEO) |
2574 | seq_puts(m, s: "TARGET MODE " ); |
2575 | if (s & ENSELO) |
2576 | seq_puts(m, s: "SELO " ); |
2577 | if (s & ENSELI) |
2578 | seq_puts(m, s: "SELI " ); |
2579 | if (s & ENRESELI) |
2580 | seq_puts(m, s: "RESELI " ); |
2581 | if (s & ENAUTOATNO) |
2582 | seq_puts(m, s: "AUTOATNO " ); |
2583 | if (s & ENAUTOATNI) |
2584 | seq_puts(m, s: "AUTOATNI " ); |
2585 | if (s & ENAUTOATNP) |
2586 | seq_puts(m, s: "AUTOATNP " ); |
2587 | if (s & SCSIRSTO) |
2588 | seq_puts(m, s: "SCSIRSTO " ); |
2589 | seq_puts(m, s: ");" ); |
2590 | |
2591 | seq_puts(m, s: " SCSISIG(" ); |
2592 | s = GETPORT(SCSISIG); |
2593 | switch (s & P_MASK) { |
2594 | case P_DATAO: |
2595 | seq_puts(m, s: "DATA OUT" ); |
2596 | break; |
2597 | case P_DATAI: |
2598 | seq_puts(m, s: "DATA IN" ); |
2599 | break; |
2600 | case P_CMD: |
2601 | seq_puts(m, s: "COMMAND" ); |
2602 | break; |
2603 | case P_STATUS: |
2604 | seq_puts(m, s: "STATUS" ); |
2605 | break; |
2606 | case P_MSGO: |
2607 | seq_puts(m, s: "MESSAGE OUT" ); |
2608 | break; |
2609 | case P_MSGI: |
2610 | seq_puts(m, s: "MESSAGE IN" ); |
2611 | break; |
2612 | default: |
2613 | seq_puts(m, s: "*invalid*" ); |
2614 | break; |
2615 | } |
2616 | |
2617 | seq_puts(m, s: "); " ); |
2618 | |
2619 | seq_printf(m, fmt: "INTSTAT (%s); " , TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo" ); |
2620 | |
2621 | seq_puts(m, s: "SSTAT( " ); |
2622 | s = GETPORT(SSTAT0); |
2623 | if (s & TARGET) |
2624 | seq_puts(m, s: "TARGET " ); |
2625 | if (s & SELDO) |
2626 | seq_puts(m, s: "SELDO " ); |
2627 | if (s & SELDI) |
2628 | seq_puts(m, s: "SELDI " ); |
2629 | if (s & SELINGO) |
2630 | seq_puts(m, s: "SELINGO " ); |
2631 | if (s & SWRAP) |
2632 | seq_puts(m, s: "SWRAP " ); |
2633 | if (s & SDONE) |
2634 | seq_puts(m, s: "SDONE " ); |
2635 | if (s & SPIORDY) |
2636 | seq_puts(m, s: "SPIORDY " ); |
2637 | if (s & DMADONE) |
2638 | seq_puts(m, s: "DMADONE " ); |
2639 | |
2640 | s = GETPORT(SSTAT1); |
2641 | if (s & SELTO) |
2642 | seq_puts(m, s: "SELTO " ); |
2643 | if (s & ATNTARG) |
2644 | seq_puts(m, s: "ATNTARG " ); |
2645 | if (s & SCSIRSTI) |
2646 | seq_puts(m, s: "SCSIRSTI " ); |
2647 | if (s & PHASEMIS) |
2648 | seq_puts(m, s: "PHASEMIS " ); |
2649 | if (s & BUSFREE) |
2650 | seq_puts(m, s: "BUSFREE " ); |
2651 | if (s & SCSIPERR) |
2652 | seq_puts(m, s: "SCSIPERR " ); |
2653 | if (s & PHASECHG) |
2654 | seq_puts(m, s: "PHASECHG " ); |
2655 | if (s & REQINIT) |
2656 | seq_puts(m, s: "REQINIT " ); |
2657 | seq_puts(m, s: "); " ); |
2658 | |
2659 | |
2660 | seq_puts(m, s: "SSTAT( " ); |
2661 | |
2662 | s = GETPORT(SSTAT0) & GETPORT(SIMODE0); |
2663 | |
2664 | if (s & TARGET) |
2665 | seq_puts(m, s: "TARGET " ); |
2666 | if (s & SELDO) |
2667 | seq_puts(m, s: "SELDO " ); |
2668 | if (s & SELDI) |
2669 | seq_puts(m, s: "SELDI " ); |
2670 | if (s & SELINGO) |
2671 | seq_puts(m, s: "SELINGO " ); |
2672 | if (s & SWRAP) |
2673 | seq_puts(m, s: "SWRAP " ); |
2674 | if (s & SDONE) |
2675 | seq_puts(m, s: "SDONE " ); |
2676 | if (s & SPIORDY) |
2677 | seq_puts(m, s: "SPIORDY " ); |
2678 | if (s & DMADONE) |
2679 | seq_puts(m, s: "DMADONE " ); |
2680 | |
2681 | s = GETPORT(SSTAT1) & GETPORT(SIMODE1); |
2682 | |
2683 | if (s & SELTO) |
2684 | seq_puts(m, s: "SELTO " ); |
2685 | if (s & ATNTARG) |
2686 | seq_puts(m, s: "ATNTARG " ); |
2687 | if (s & SCSIRSTI) |
2688 | seq_puts(m, s: "SCSIRSTI " ); |
2689 | if (s & PHASEMIS) |
2690 | seq_puts(m, s: "PHASEMIS " ); |
2691 | if (s & BUSFREE) |
2692 | seq_puts(m, s: "BUSFREE " ); |
2693 | if (s & SCSIPERR) |
2694 | seq_puts(m, s: "SCSIPERR " ); |
2695 | if (s & PHASECHG) |
2696 | seq_puts(m, s: "PHASECHG " ); |
2697 | if (s & REQINIT) |
2698 | seq_puts(m, s: "REQINIT " ); |
2699 | seq_puts(m, s: "); " ); |
2700 | |
2701 | seq_puts(m, s: "SXFRCTL0( " ); |
2702 | |
2703 | s = GETPORT(SXFRCTL0); |
2704 | if (s & SCSIEN) |
2705 | seq_puts(m, s: "SCSIEN " ); |
2706 | if (s & DMAEN) |
2707 | seq_puts(m, s: "DMAEN " ); |
2708 | if (s & CH1) |
2709 | seq_puts(m, s: "CH1 " ); |
2710 | if (s & CLRSTCNT) |
2711 | seq_puts(m, s: "CLRSTCNT " ); |
2712 | if (s & SPIOEN) |
2713 | seq_puts(m, s: "SPIOEN " ); |
2714 | if (s & CLRCH1) |
2715 | seq_puts(m, s: "CLRCH1 " ); |
2716 | seq_puts(m, s: "); " ); |
2717 | |
2718 | seq_puts(m, s: "SIGNAL( " ); |
2719 | |
2720 | s = GETPORT(SCSISIG); |
2721 | if (s & SIG_ATNI) |
2722 | seq_puts(m, s: "ATNI " ); |
2723 | if (s & SIG_SELI) |
2724 | seq_puts(m, s: "SELI " ); |
2725 | if (s & SIG_BSYI) |
2726 | seq_puts(m, s: "BSYI " ); |
2727 | if (s & SIG_REQI) |
2728 | seq_puts(m, s: "REQI " ); |
2729 | if (s & SIG_ACKI) |
2730 | seq_puts(m, s: "ACKI " ); |
2731 | seq_puts(m, s: "); " ); |
2732 | |
2733 | seq_printf(m, fmt: "SELID(%02x), " , GETPORT(SELID)); |
2734 | |
2735 | seq_printf(m, fmt: "STCNT(%d), " , GETSTCNT()); |
2736 | |
2737 | seq_puts(m, s: "SSTAT2( " ); |
2738 | |
2739 | s = GETPORT(SSTAT2); |
2740 | if (s & SOFFSET) |
2741 | seq_puts(m, s: "SOFFSET " ); |
2742 | if (s & SEMPTY) |
2743 | seq_puts(m, s: "SEMPTY " ); |
2744 | if (s & SFULL) |
2745 | seq_puts(m, s: "SFULL " ); |
2746 | seq_printf(m, fmt: "); SFCNT (%d); " , s & (SFULL | SFCNT)); |
2747 | |
2748 | s = GETPORT(SSTAT3); |
2749 | seq_printf(m, fmt: "SCSICNT (%d), OFFCNT(%d), " , (s & 0xf0) >> 4, s & 0x0f); |
2750 | |
2751 | seq_puts(m, s: "SSTAT4( " ); |
2752 | s = GETPORT(SSTAT4); |
2753 | if (s & SYNCERR) |
2754 | seq_puts(m, s: "SYNCERR " ); |
2755 | if (s & FWERR) |
2756 | seq_puts(m, s: "FWERR " ); |
2757 | if (s & FRERR) |
2758 | seq_puts(m, s: "FRERR " ); |
2759 | seq_puts(m, s: "); " ); |
2760 | |
2761 | seq_puts(m, s: "DMACNTRL0( " ); |
2762 | s = GETPORT(DMACNTRL0); |
2763 | seq_printf(m, fmt: "%s " , s & _8BIT ? "8BIT" : "16BIT" ); |
2764 | seq_printf(m, fmt: "%s " , s & DMA ? "DMA" : "PIO" ); |
2765 | seq_printf(m, fmt: "%s " , s & WRITE_READ ? "WRITE" : "READ" ); |
2766 | if (s & ENDMA) |
2767 | seq_puts(m, s: "ENDMA " ); |
2768 | if (s & INTEN) |
2769 | seq_puts(m, s: "INTEN " ); |
2770 | if (s & RSTFIFO) |
2771 | seq_puts(m, s: "RSTFIFO " ); |
2772 | if (s & SWINT) |
2773 | seq_puts(m, s: "SWINT " ); |
2774 | seq_puts(m, s: "); " ); |
2775 | |
2776 | seq_puts(m, s: "DMASTAT( " ); |
2777 | s = GETPORT(DMASTAT); |
2778 | if (s & ATDONE) |
2779 | seq_puts(m, s: "ATDONE " ); |
2780 | if (s & WORDRDY) |
2781 | seq_puts(m, s: "WORDRDY " ); |
2782 | if (s & DFIFOFULL) |
2783 | seq_puts(m, s: "DFIFOFULL " ); |
2784 | if (s & DFIFOEMP) |
2785 | seq_puts(m, s: "DFIFOEMP " ); |
2786 | seq_puts(m, s: ")\n" ); |
2787 | |
2788 | seq_puts(m, s: "enabled interrupts( " ); |
2789 | |
2790 | s = GETPORT(SIMODE0); |
2791 | if (s & ENSELDO) |
2792 | seq_puts(m, s: "ENSELDO " ); |
2793 | if (s & ENSELDI) |
2794 | seq_puts(m, s: "ENSELDI " ); |
2795 | if (s & ENSELINGO) |
2796 | seq_puts(m, s: "ENSELINGO " ); |
2797 | if (s & ENSWRAP) |
2798 | seq_puts(m, s: "ENSWRAP " ); |
2799 | if (s & ENSDONE) |
2800 | seq_puts(m, s: "ENSDONE " ); |
2801 | if (s & ENSPIORDY) |
2802 | seq_puts(m, s: "ENSPIORDY " ); |
2803 | if (s & ENDMADONE) |
2804 | seq_puts(m, s: "ENDMADONE " ); |
2805 | |
2806 | s = GETPORT(SIMODE1); |
2807 | if (s & ENSELTIMO) |
2808 | seq_puts(m, s: "ENSELTIMO " ); |
2809 | if (s & ENATNTARG) |
2810 | seq_puts(m, s: "ENATNTARG " ); |
2811 | if (s & ENPHASEMIS) |
2812 | seq_puts(m, s: "ENPHASEMIS " ); |
2813 | if (s & ENBUSFREE) |
2814 | seq_puts(m, s: "ENBUSFREE " ); |
2815 | if (s & ENSCSIPERR) |
2816 | seq_puts(m, s: "ENSCSIPERR " ); |
2817 | if (s & ENPHASECHG) |
2818 | seq_puts(m, s: "ENPHASECHG " ); |
2819 | if (s & ENREQINIT) |
2820 | seq_puts(m, s: "ENREQINIT " ); |
2821 | seq_puts(m, s: ")\n" ); |
2822 | } |
2823 | |
2824 | static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length) |
2825 | { |
2826 | if(!shpnt || !buffer || length<8 || strncmp("aha152x " , buffer, 8)!=0) |
2827 | return -EINVAL; |
2828 | |
2829 | #if defined(AHA152X_STAT) |
2830 | if(length>13 && strncmp("reset" , buffer+8, 5)==0) { |
2831 | int i; |
2832 | |
2833 | HOSTDATA(shpnt)->total_commands=0; |
2834 | HOSTDATA(shpnt)->disconnections=0; |
2835 | HOSTDATA(shpnt)->busfree_without_any_action=0; |
2836 | HOSTDATA(shpnt)->busfree_without_old_command=0; |
2837 | HOSTDATA(shpnt)->busfree_without_new_command=0; |
2838 | HOSTDATA(shpnt)->busfree_without_done_command=0; |
2839 | HOSTDATA(shpnt)->busfree_with_check_condition=0; |
2840 | for (i = idle; i<maxstate; i++) { |
2841 | HOSTDATA(shpnt)->count[i]=0; |
2842 | HOSTDATA(shpnt)->count_trans[i]=0; |
2843 | HOSTDATA(shpnt)->time[i]=0; |
2844 | } |
2845 | |
2846 | shost_printk(KERN_INFO, shpnt, "aha152x: stats reset.\n" ); |
2847 | |
2848 | } else |
2849 | #endif |
2850 | { |
2851 | return -EINVAL; |
2852 | } |
2853 | |
2854 | |
2855 | return length; |
2856 | } |
2857 | |
2858 | static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt) |
2859 | { |
2860 | int i; |
2861 | struct scsi_cmnd *ptr; |
2862 | unsigned long flags; |
2863 | |
2864 | seq_puts(m, AHA152X_REVID "\n" ); |
2865 | |
2866 | seq_printf(m, fmt: "ioports 0x%04lx to 0x%04lx\n" , |
2867 | shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1); |
2868 | seq_printf(m, fmt: "interrupt 0x%02x\n" , shpnt->irq); |
2869 | seq_printf(m, fmt: "disconnection/reconnection %s\n" , |
2870 | RECONNECT ? "enabled" : "disabled" ); |
2871 | seq_printf(m, fmt: "parity checking %s\n" , |
2872 | PARITY ? "enabled" : "disabled" ); |
2873 | seq_printf(m, fmt: "synchronous transfers %s\n" , |
2874 | SYNCHRONOUS ? "enabled" : "disabled" ); |
2875 | seq_printf(m, fmt: "%d commands currently queued\n" , HOSTDATA(shpnt)->commands); |
2876 | |
2877 | if(SYNCHRONOUS) { |
2878 | seq_puts(m, s: "synchronously operating targets (tick=50 ns):\n" ); |
2879 | for (i = 0; i < 8; i++) |
2880 | if (HOSTDATA(shpnt)->syncrate[i] & 0x7f) |
2881 | seq_printf(m, fmt: "target %d: period %dT/%dns; req/ack offset %d\n" , |
2882 | i, |
2883 | (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2), |
2884 | (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50, |
2885 | HOSTDATA(shpnt)->syncrate[i] & 0x0f); |
2886 | } |
2887 | seq_puts(m, s: "\nqueue status:\n" ); |
2888 | DO_LOCK(flags); |
2889 | if (ISSUE_SC) { |
2890 | seq_puts(m, s: "not yet issued commands:\n" ); |
2891 | for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) |
2892 | get_command(m, ptr); |
2893 | } else |
2894 | seq_puts(m, s: "no not yet issued commands\n" ); |
2895 | DO_UNLOCK(flags); |
2896 | |
2897 | if (CURRENT_SC) { |
2898 | seq_puts(m, s: "current command:\n" ); |
2899 | get_command(m, CURRENT_SC); |
2900 | } else |
2901 | seq_puts(m, s: "no current command\n" ); |
2902 | |
2903 | if (DISCONNECTED_SC) { |
2904 | seq_puts(m, s: "disconnected commands:\n" ); |
2905 | for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr)) |
2906 | get_command(m, ptr); |
2907 | } else |
2908 | seq_puts(m, s: "no disconnected commands\n" ); |
2909 | |
2910 | get_ports(m, shpnt); |
2911 | |
2912 | #if defined(AHA152X_STAT) |
2913 | seq_printf(m, "statistics:\n" |
2914 | "total commands: %d\n" |
2915 | "disconnections: %d\n" |
2916 | "busfree with check condition: %d\n" |
2917 | "busfree without old command: %d\n" |
2918 | "busfree without new command: %d\n" |
2919 | "busfree without done command: %d\n" |
2920 | "busfree without any action: %d\n" |
2921 | "state " |
2922 | "transitions " |
2923 | "count " |
2924 | "time\n" , |
2925 | HOSTDATA(shpnt)->total_commands, |
2926 | HOSTDATA(shpnt)->disconnections, |
2927 | HOSTDATA(shpnt)->busfree_with_check_condition, |
2928 | HOSTDATA(shpnt)->busfree_without_old_command, |
2929 | HOSTDATA(shpnt)->busfree_without_new_command, |
2930 | HOSTDATA(shpnt)->busfree_without_done_command, |
2931 | HOSTDATA(shpnt)->busfree_without_any_action); |
2932 | for(i=0; i<maxstate; i++) { |
2933 | seq_printf(m, "%-10s %-12d %-12d %-12ld\n" , |
2934 | states[i].name, |
2935 | HOSTDATA(shpnt)->count_trans[i], |
2936 | HOSTDATA(shpnt)->count[i], |
2937 | HOSTDATA(shpnt)->time[i]); |
2938 | } |
2939 | #endif |
2940 | return 0; |
2941 | } |
2942 | |
2943 | static int aha152x_adjust_queue(struct scsi_device *device) |
2944 | { |
2945 | blk_queue_bounce_limit(q: device->request_queue, limit: BLK_BOUNCE_HIGH); |
2946 | return 0; |
2947 | } |
2948 | |
2949 | static const struct scsi_host_template aha152x_driver_template = { |
2950 | .module = THIS_MODULE, |
2951 | .name = AHA152X_REVID, |
2952 | .proc_name = "aha152x" , |
2953 | .show_info = aha152x_show_info, |
2954 | .write_info = aha152x_set_info, |
2955 | .queuecommand = aha152x_queue, |
2956 | .eh_abort_handler = aha152x_abort, |
2957 | .eh_device_reset_handler = aha152x_device_reset, |
2958 | .eh_bus_reset_handler = aha152x_bus_reset, |
2959 | .bios_param = aha152x_biosparam, |
2960 | .can_queue = 1, |
2961 | .this_id = 7, |
2962 | .sg_tablesize = SG_ALL, |
2963 | .dma_boundary = PAGE_SIZE - 1, |
2964 | .slave_alloc = aha152x_adjust_queue, |
2965 | .cmd_size = sizeof(struct aha152x_cmd_priv), |
2966 | }; |
2967 | |
2968 | #if !defined(AHA152X_PCMCIA) |
2969 | static int setup_count; |
2970 | static struct aha152x_setup setup[2]; |
2971 | |
2972 | /* possible i/o addresses for the AIC-6260; default first */ |
2973 | static unsigned short ports[] = { 0x340, 0x140 }; |
2974 | |
2975 | #if !defined(SKIP_BIOSTEST) |
2976 | /* possible locations for the Adaptec BIOS; defaults first */ |
2977 | static unsigned int addresses[] = |
2978 | { |
2979 | 0xdc000, /* default first */ |
2980 | 0xc8000, |
2981 | 0xcc000, |
2982 | 0xd0000, |
2983 | 0xd4000, |
2984 | 0xd8000, |
2985 | 0xe0000, |
2986 | 0xeb800, /* VTech Platinum SMP */ |
2987 | 0xf0000, |
2988 | }; |
2989 | |
2990 | /* signatures for various AIC-6[23]60 based controllers. |
2991 | The point in detecting signatures is to avoid useless and maybe |
2992 | harmful probes on ports. I'm not sure that all listed boards pass |
2993 | auto-configuration. For those which fail the BIOS signature is |
2994 | obsolete, because user intervention to supply the configuration is |
2995 | needed anyway. May be an information whether or not the BIOS supports |
2996 | extended translation could be also useful here. */ |
2997 | static struct signature { |
2998 | unsigned char *signature; |
2999 | int sig_offset; |
3000 | int sig_length; |
3001 | } signatures[] = |
3002 | { |
3003 | { "Adaptec AHA-1520 BIOS" , 0x102e, 21 }, |
3004 | /* Adaptec 152x */ |
3005 | { "Adaptec AHA-1520B" , 0x000b, 17 }, |
3006 | /* Adaptec 152x rev B */ |
3007 | { "Adaptec AHA-1520B" , 0x0026, 17 }, |
3008 | /* Iomega Jaz Jet ISA (AIC6370Q) */ |
3009 | { "Adaptec ASW-B626 BIOS" , 0x1029, 21 }, |
3010 | /* on-board controller */ |
3011 | { "Adaptec BIOS: ASW-B626" , 0x000f, 22 }, |
3012 | /* on-board controller */ |
3013 | { "Adaptec ASW-B626 S2" , 0x2e6c, 19 }, |
3014 | /* on-board controller */ |
3015 | { "Adaptec BIOS:AIC-6360" , 0x000c, 21 }, |
3016 | /* on-board controller */ |
3017 | { "ScsiPro SP-360 BIOS" , 0x2873, 19 }, |
3018 | /* ScsiPro-Controller */ |
3019 | { "GA-400 LOCAL BUS SCSI BIOS" , 0x102e, 26 }, |
3020 | /* Gigabyte Local-Bus-SCSI */ |
3021 | { "Adaptec BIOS:AVA-282X" , 0x000c, 21 }, |
3022 | /* Adaptec 282x */ |
3023 | { "Adaptec IBM Dock II SCSI" , 0x2edd, 24 }, |
3024 | /* IBM Thinkpad Dock II */ |
3025 | { "Adaptec BIOS:AHA-1532P" , 0x001c, 22 }, |
3026 | /* IBM Thinkpad Dock II SCSI */ |
3027 | { "DTC3520A Host Adapter BIOS" , 0x318a, 26 }, |
3028 | /* DTC 3520A ISA SCSI */ |
3029 | }; |
3030 | #endif /* !SKIP_BIOSTEST */ |
3031 | |
3032 | /* |
3033 | * Test, if port_base is valid. |
3034 | * |
3035 | */ |
3036 | static int aha152x_porttest(int io_port) |
3037 | { |
3038 | int i; |
3039 | |
3040 | SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ |
3041 | for (i = 0; i < 16; i++) |
3042 | SETPORT(io_port + O_STACK, i); |
3043 | |
3044 | SETPORT(io_port + O_DMACNTRL1, 0); /* reset stack pointer */ |
3045 | for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++) |
3046 | ; |
3047 | |
3048 | return (i == 16); |
3049 | } |
3050 | |
3051 | static int tc1550_porttest(int io_port) |
3052 | { |
3053 | int i; |
3054 | |
3055 | SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ |
3056 | for (i = 0; i < 16; i++) |
3057 | SETPORT(io_port + O_STACK, i); |
3058 | |
3059 | SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */ |
3060 | for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++) |
3061 | ; |
3062 | |
3063 | return (i == 16); |
3064 | } |
3065 | |
3066 | |
3067 | static int checksetup(struct aha152x_setup *setup) |
3068 | { |
3069 | int i; |
3070 | for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++) |
3071 | ; |
3072 | |
3073 | if (i == ARRAY_SIZE(ports)) |
3074 | return 0; |
3075 | |
3076 | if (!request_region(setup->io_port, IO_RANGE, "aha152x" )) { |
3077 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n" , setup->io_port); |
3078 | return 0; |
3079 | } |
3080 | |
3081 | if( aha152x_porttest(io_port: setup->io_port) ) { |
3082 | setup->tc1550=0; |
3083 | } else if( tc1550_porttest(io_port: setup->io_port) ) { |
3084 | setup->tc1550=1; |
3085 | } else { |
3086 | release_region(setup->io_port, IO_RANGE); |
3087 | return 0; |
3088 | } |
3089 | |
3090 | release_region(setup->io_port, IO_RANGE); |
3091 | |
3092 | if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX)) |
3093 | return 0; |
3094 | |
3095 | if ((setup->scsiid < 0) || (setup->scsiid > 7)) |
3096 | return 0; |
3097 | |
3098 | if ((setup->reconnect < 0) || (setup->reconnect > 1)) |
3099 | return 0; |
3100 | |
3101 | if ((setup->parity < 0) || (setup->parity > 1)) |
3102 | return 0; |
3103 | |
3104 | if ((setup->synchronous < 0) || (setup->synchronous > 1)) |
3105 | return 0; |
3106 | |
3107 | if ((setup->ext_trans < 0) || (setup->ext_trans > 1)) |
3108 | return 0; |
3109 | |
3110 | |
3111 | return 1; |
3112 | } |
3113 | |
3114 | |
3115 | static int __init aha152x_init(void) |
3116 | { |
3117 | int i, j, ok; |
3118 | #if defined(AUTOCONF) |
3119 | aha152x_config conf; |
3120 | #endif |
3121 | #ifdef __ISAPNP__ |
3122 | struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL}; |
3123 | #endif |
3124 | |
3125 | if ( setup_count ) { |
3126 | printk(KERN_INFO "aha152x: processing commandline: " ); |
3127 | |
3128 | for (i = 0; i<setup_count; i++) { |
3129 | if (!checksetup(setup: &setup[i])) { |
3130 | printk(KERN_ERR "\naha152x: %s\n" , setup[i].conf); |
3131 | printk(KERN_ERR "aha152x: invalid line\n" ); |
3132 | } |
3133 | } |
3134 | printk("ok\n" ); |
3135 | } |
3136 | |
3137 | #if defined(SETUP0) |
3138 | if (setup_count < ARRAY_SIZE(setup)) { |
3139 | struct aha152x_setup override = SETUP0; |
3140 | |
3141 | if (setup_count == 0 || (override.io_port != setup[0].io_port)) { |
3142 | if (!checksetup(&override)) { |
3143 | printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n" , |
3144 | override.io_port, |
3145 | override.irq, |
3146 | override.scsiid, |
3147 | override.reconnect, |
3148 | override.parity, |
3149 | override.synchronous, |
3150 | override.delay, |
3151 | override.ext_trans); |
3152 | } else |
3153 | setup[setup_count++] = override; |
3154 | } |
3155 | } |
3156 | #endif |
3157 | |
3158 | #if defined(SETUP1) |
3159 | if (setup_count < ARRAY_SIZE(setup)) { |
3160 | struct aha152x_setup override = SETUP1; |
3161 | |
3162 | if (setup_count == 0 || (override.io_port != setup[0].io_port)) { |
3163 | if (!checksetup(&override)) { |
3164 | printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n" , |
3165 | override.io_port, |
3166 | override.irq, |
3167 | override.scsiid, |
3168 | override.reconnect, |
3169 | override.parity, |
3170 | override.synchronous, |
3171 | override.delay, |
3172 | override.ext_trans); |
3173 | } else |
3174 | setup[setup_count++] = override; |
3175 | } |
3176 | } |
3177 | #endif |
3178 | |
3179 | #if defined(MODULE) |
3180 | if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) { |
3181 | if(aha152x[0]!=0) { |
3182 | setup[setup_count].conf = "" ; |
3183 | setup[setup_count].io_port = aha152x[0]; |
3184 | setup[setup_count].irq = aha152x[1]; |
3185 | setup[setup_count].scsiid = aha152x[2]; |
3186 | setup[setup_count].reconnect = aha152x[3]; |
3187 | setup[setup_count].parity = aha152x[4]; |
3188 | setup[setup_count].synchronous = aha152x[5]; |
3189 | setup[setup_count].delay = aha152x[6]; |
3190 | setup[setup_count].ext_trans = aha152x[7]; |
3191 | } else if (io[0] != 0 || irq[0] != 0) { |
3192 | if(io[0]!=0) setup[setup_count].io_port = io[0]; |
3193 | if(irq[0]!=0) setup[setup_count].irq = irq[0]; |
3194 | |
3195 | setup[setup_count].scsiid = scsiid[0]; |
3196 | setup[setup_count].reconnect = reconnect[0]; |
3197 | setup[setup_count].parity = parity[0]; |
3198 | setup[setup_count].synchronous = sync[0]; |
3199 | setup[setup_count].delay = delay[0]; |
3200 | setup[setup_count].ext_trans = exttrans[0]; |
3201 | } |
3202 | |
3203 | if (checksetup(setup: &setup[setup_count])) |
3204 | setup_count++; |
3205 | else |
3206 | 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" , |
3207 | setup[setup_count].io_port, |
3208 | setup[setup_count].irq, |
3209 | setup[setup_count].scsiid, |
3210 | setup[setup_count].reconnect, |
3211 | setup[setup_count].parity, |
3212 | setup[setup_count].synchronous, |
3213 | setup[setup_count].delay, |
3214 | setup[setup_count].ext_trans); |
3215 | } |
3216 | |
3217 | if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) { |
3218 | if(aha152x1[0]!=0) { |
3219 | setup[setup_count].conf = "" ; |
3220 | setup[setup_count].io_port = aha152x1[0]; |
3221 | setup[setup_count].irq = aha152x1[1]; |
3222 | setup[setup_count].scsiid = aha152x1[2]; |
3223 | setup[setup_count].reconnect = aha152x1[3]; |
3224 | setup[setup_count].parity = aha152x1[4]; |
3225 | setup[setup_count].synchronous = aha152x1[5]; |
3226 | setup[setup_count].delay = aha152x1[6]; |
3227 | setup[setup_count].ext_trans = aha152x1[7]; |
3228 | } else if (io[1] != 0 || irq[1] != 0) { |
3229 | if(io[1]!=0) setup[setup_count].io_port = io[1]; |
3230 | if(irq[1]!=0) setup[setup_count].irq = irq[1]; |
3231 | |
3232 | setup[setup_count].scsiid = scsiid[1]; |
3233 | setup[setup_count].reconnect = reconnect[1]; |
3234 | setup[setup_count].parity = parity[1]; |
3235 | setup[setup_count].synchronous = sync[1]; |
3236 | setup[setup_count].delay = delay[1]; |
3237 | setup[setup_count].ext_trans = exttrans[1]; |
3238 | } |
3239 | if (checksetup(setup: &setup[setup_count])) |
3240 | setup_count++; |
3241 | else |
3242 | 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" , |
3243 | setup[setup_count].io_port, |
3244 | setup[setup_count].irq, |
3245 | setup[setup_count].scsiid, |
3246 | setup[setup_count].reconnect, |
3247 | setup[setup_count].parity, |
3248 | setup[setup_count].synchronous, |
3249 | setup[setup_count].delay, |
3250 | setup[setup_count].ext_trans); |
3251 | } |
3252 | #endif |
3253 | |
3254 | #ifdef __ISAPNP__ |
3255 | for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) { |
3256 | while ( setup_count<ARRAY_SIZE(setup) && |
3257 | (dev=pnp_find_dev(NULL, vendor: id_table[i].vendor, function: id_table[i].function, from: dev)) ) { |
3258 | if (pnp_device_attach(pnp_dev: dev) < 0) |
3259 | continue; |
3260 | |
3261 | if (pnp_activate_dev(dev) < 0) { |
3262 | pnp_device_detach(pnp_dev: dev); |
3263 | continue; |
3264 | } |
3265 | |
3266 | if (!pnp_port_valid(dev, bar: 0)) { |
3267 | pnp_device_detach(pnp_dev: dev); |
3268 | continue; |
3269 | } |
3270 | |
3271 | if (setup_count==1 && pnp_port_start(dev, bar: 0)==setup[0].io_port) { |
3272 | pnp_device_detach(pnp_dev: dev); |
3273 | continue; |
3274 | } |
3275 | |
3276 | setup[setup_count].io_port = pnp_port_start(dev, bar: 0); |
3277 | setup[setup_count].irq = pnp_irq(dev, bar: 0); |
3278 | setup[setup_count].scsiid = 7; |
3279 | setup[setup_count].reconnect = 1; |
3280 | setup[setup_count].parity = 1; |
3281 | setup[setup_count].synchronous = 1; |
3282 | setup[setup_count].delay = DELAY_DEFAULT; |
3283 | setup[setup_count].ext_trans = 0; |
3284 | #if defined(__ISAPNP__) |
3285 | pnpdev[setup_count] = dev; |
3286 | #endif |
3287 | printk (KERN_INFO |
3288 | "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n" , |
3289 | setup[setup_count].io_port, setup[setup_count].irq); |
3290 | setup_count++; |
3291 | } |
3292 | } |
3293 | #endif |
3294 | |
3295 | #if defined(AUTOCONF) |
3296 | if (setup_count<ARRAY_SIZE(setup)) { |
3297 | #if !defined(SKIP_BIOSTEST) |
3298 | ok = 0; |
3299 | for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) { |
3300 | void __iomem *p = ioremap(offset: addresses[i], size: 0x4000); |
3301 | if (!p) |
3302 | continue; |
3303 | for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++) |
3304 | ok = check_signature(io_addr: p + signatures[j].sig_offset, |
3305 | signature: signatures[j].signature, length: signatures[j].sig_length); |
3306 | iounmap(addr: p); |
3307 | } |
3308 | if (!ok && setup_count == 0) |
3309 | return -ENODEV; |
3310 | |
3311 | printk(KERN_INFO "aha152x: BIOS test: passed, " ); |
3312 | #else |
3313 | printk(KERN_INFO "aha152x: " ); |
3314 | #endif /* !SKIP_BIOSTEST */ |
3315 | |
3316 | ok = 0; |
3317 | for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) { |
3318 | if ((setup_count == 1) && (setup[0].io_port == ports[i])) |
3319 | continue; |
3320 | |
3321 | if (!request_region(ports[i], IO_RANGE, "aha152x" )) { |
3322 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n" , ports[i]); |
3323 | continue; |
3324 | } |
3325 | |
3326 | if (aha152x_porttest(io_port: ports[i])) { |
3327 | setup[setup_count].tc1550 = 0; |
3328 | |
3329 | conf.cf_port = |
3330 | (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB); |
3331 | } else if (tc1550_porttest(io_port: ports[i])) { |
3332 | setup[setup_count].tc1550 = 1; |
3333 | |
3334 | conf.cf_port = |
3335 | (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB); |
3336 | } else { |
3337 | release_region(ports[i], IO_RANGE); |
3338 | continue; |
3339 | } |
3340 | |
3341 | release_region(ports[i], IO_RANGE); |
3342 | |
3343 | ok++; |
3344 | setup[setup_count].io_port = ports[i]; |
3345 | setup[setup_count].irq = IRQ_MIN + conf.cf_irq; |
3346 | setup[setup_count].scsiid = conf.cf_id; |
3347 | setup[setup_count].reconnect = conf.cf_tardisc; |
3348 | setup[setup_count].parity = !conf.cf_parity; |
3349 | setup[setup_count].synchronous = conf.cf_syncneg; |
3350 | setup[setup_count].delay = DELAY_DEFAULT; |
3351 | setup[setup_count].ext_trans = 0; |
3352 | setup_count++; |
3353 | |
3354 | } |
3355 | |
3356 | if (ok) |
3357 | printk("auto configuration: ok, " ); |
3358 | } |
3359 | #endif |
3360 | |
3361 | printk("%d controller(s) configured\n" , setup_count); |
3362 | |
3363 | for (i=0; i<setup_count; i++) { |
3364 | if ( request_region(setup[i].io_port, IO_RANGE, "aha152x" ) ) { |
3365 | struct Scsi_Host *shpnt = aha152x_probe_one(setup: &setup[i]); |
3366 | |
3367 | if( !shpnt ) { |
3368 | release_region(setup[i].io_port, IO_RANGE); |
3369 | #if defined(__ISAPNP__) |
3370 | } else if( pnpdev[i] ) { |
3371 | HOSTDATA(shpnt)->pnpdev=pnpdev[i]; |
3372 | pnpdev[i]=NULL; |
3373 | #endif |
3374 | } |
3375 | } else { |
3376 | printk(KERN_ERR "aha152x: io port 0x%x busy.\n" , setup[i].io_port); |
3377 | } |
3378 | |
3379 | #if defined(__ISAPNP__) |
3380 | if( pnpdev[i] ) |
3381 | pnp_device_detach(pnp_dev: pnpdev[i]); |
3382 | #endif |
3383 | } |
3384 | |
3385 | return 0; |
3386 | } |
3387 | |
3388 | static void __exit aha152x_exit(void) |
3389 | { |
3390 | struct aha152x_hostdata *hd, *tmp; |
3391 | |
3392 | list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) { |
3393 | struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata); |
3394 | |
3395 | aha152x_release(shpnt: shost); |
3396 | } |
3397 | } |
3398 | |
3399 | module_init(aha152x_init); |
3400 | module_exit(aha152x_exit); |
3401 | |
3402 | #if !defined(MODULE) |
3403 | static int __init aha152x_setup(char *str) |
3404 | { |
3405 | int ints[10]; |
3406 | |
3407 | get_options(str, ARRAY_SIZE(ints), ints); |
3408 | |
3409 | if(setup_count>=ARRAY_SIZE(setup)) { |
3410 | printk(KERN_ERR "aha152x: you can only configure up to two controllers\n" ); |
3411 | return 1; |
3412 | } |
3413 | |
3414 | setup[setup_count].conf = str; |
3415 | setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340; |
3416 | setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11; |
3417 | setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7; |
3418 | setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1; |
3419 | setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1; |
3420 | setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1; |
3421 | setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT; |
3422 | setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0; |
3423 | if (ints[0] > 8) |
3424 | printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" |
3425 | "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n" ); |
3426 | else |
3427 | setup_count++; |
3428 | |
3429 | return 1; |
3430 | } |
3431 | __setup("aha152x=" , aha152x_setup); |
3432 | #endif |
3433 | |
3434 | #endif /* !AHA152X_PCMCIA */ |
3435 | |