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Linux 4.2.1
[linux/fpc-iii.git] / drivers / usb / misc / sisusbvga / sisusb.c
blob306d6852ebc726b0f365633c4ca452164071597a
1 /*
2 * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
3 *
4 * Main part
5 *
6 * Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria
7 *
8 * If distributed as part of the Linux kernel, this code is licensed under the
9 * terms of the GPL v2.
10 *
11 * Otherwise, the following license terms apply:
12 *
13 * * Redistribution and use in source and binary forms, with or without
14 * * modification, are permitted provided that the following conditions
15 * * are met:
16 * * 1) Redistributions of source code must retain the above copyright
17 * * notice, this list of conditions and the following disclaimer.
18 * * 2) Redistributions in binary form must reproduce the above copyright
19 * * notice, this list of conditions and the following disclaimer in the
20 * * documentation and/or other materials provided with the distribution.
21 * * 3) The name of the author may not be used to endorse or promote products
22 * * derived from this software without specific psisusbr written permission.
23 * *
24 * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR
25 * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * Author: Thomas Winischhofer <thomas@winischhofer.net>
36 *
37 */
38
39 #include <linux/mutex.h>
40 #include <linux/module.h>
41 #include <linux/kernel.h>
42 #include <linux/signal.h>
43 #include <linux/errno.h>
44 #include <linux/poll.h>
45 #include <linux/init.h>
46 #include <linux/slab.h>
47 #include <linux/spinlock.h>
48 #include <linux/kref.h>
49 #include <linux/usb.h>
50 #include <linux/vmalloc.h>
51
52 #include "sisusb.h"
53 #include "sisusb_init.h"
54
55 #ifdef INCL_SISUSB_CON
56 #include <linux/font.h>
57 #endif
58
59 #define SISUSB_DONTSYNC
60
61 /* Forward declarations / clean-up routines */
62
63 #ifdef INCL_SISUSB_CON
64 static int sisusb_first_vc = 0;
65 static int sisusb_last_vc = 0;
66 module_param_named(first, sisusb_first_vc, int, 0);
67 module_param_named(last, sisusb_last_vc, int, 0);
68 MODULE_PARM_DESC(first, "Number of first console to take over (1 - MAX_NR_CONSOLES)");
69 MODULE_PARM_DESC(last, "Number of last console to take over (1 - MAX_NR_CONSOLES)");
70 #endif
71
72 static struct usb_driver sisusb_driver;
73
74 static void
75 sisusb_free_buffers(struct sisusb_usb_data *sisusb)
76 {
77 int i;
78
79 for (i = 0; i < NUMOBUFS; i++) {
80 if (sisusb->obuf[i]) {
81 kfree(sisusb->obuf[i]);
82 sisusb->obuf[i] = NULL;
83 }
84 }
85 if (sisusb->ibuf) {
86 kfree(sisusb->ibuf);
87 sisusb->ibuf = NULL;
88 }
89 }
90
91 static void
92 sisusb_free_urbs(struct sisusb_usb_data *sisusb)
93 {
94 int i;
95
96 for (i = 0; i < NUMOBUFS; i++) {
97 usb_free_urb(sisusb->sisurbout[i]);
98 sisusb->sisurbout[i] = NULL;
99 }
100 usb_free_urb(sisusb->sisurbin);
101 sisusb->sisurbin = NULL;
102 }
103
104 /* Level 0: USB transport layer */
105
106 /* 1. out-bulks */
107
108 /* out-urb management */
109
110 /* Return 1 if all free, 0 otherwise */
111 static int
112 sisusb_all_free(struct sisusb_usb_data *sisusb)
113 {
114 int i;
115
116 for (i = 0; i < sisusb->numobufs; i++) {
117
118 if (sisusb->urbstatus[i] & SU_URB_BUSY)
119 return 0;
120
121 }
122
123 return 1;
124 }
125
126 /* Kill all busy URBs */
127 static void
128 sisusb_kill_all_busy(struct sisusb_usb_data *sisusb)
129 {
130 int i;
131
132 if (sisusb_all_free(sisusb))
133 return;
134
135 for (i = 0; i < sisusb->numobufs; i++) {
136
137 if (sisusb->urbstatus[i] & SU_URB_BUSY)
138 usb_kill_urb(sisusb->sisurbout[i]);
139
140 }
141 }
142
143 /* Return 1 if ok, 0 if error (not all complete within timeout) */
144 static int
145 sisusb_wait_all_out_complete(struct sisusb_usb_data *sisusb)
146 {
147 int timeout = 5 * HZ, i = 1;
148
149 wait_event_timeout(sisusb->wait_q,
150 (i = sisusb_all_free(sisusb)),
151 timeout);
152
153 return i;
154 }
155
156 static int
157 sisusb_outurb_available(struct sisusb_usb_data *sisusb)
158 {
159 int i;
160
161 for (i = 0; i < sisusb->numobufs; i++) {
162
163 if ((sisusb->urbstatus[i] & (SU_URB_BUSY|SU_URB_ALLOC)) == 0)
164 return i;
165
166 }
167
168 return -1;
169 }
170
171 static int
172 sisusb_get_free_outbuf(struct sisusb_usb_data *sisusb)
173 {
174 int i, timeout = 5 * HZ;
175
176 wait_event_timeout(sisusb->wait_q,
177 ((i = sisusb_outurb_available(sisusb)) >= 0),
178 timeout);
179
180 return i;
181 }
182
183 static int
184 sisusb_alloc_outbuf(struct sisusb_usb_data *sisusb)
185 {
186 int i;
187
188 i = sisusb_outurb_available(sisusb);
189
190 if (i >= 0)
191 sisusb->urbstatus[i] |= SU_URB_ALLOC;
192
193 return i;
194 }
195
196 static void
197 sisusb_free_outbuf(struct sisusb_usb_data *sisusb, int index)
198 {
199 if ((index >= 0) && (index < sisusb->numobufs))
200 sisusb->urbstatus[index] &= ~SU_URB_ALLOC;
201 }
202
203 /* completion callback */
204
205 static void
206 sisusb_bulk_completeout(struct urb *urb)
207 {
208 struct sisusb_urb_context *context = urb->context;
209 struct sisusb_usb_data *sisusb;
210
211 if (!context)
212 return;
213
214 sisusb = context->sisusb;
215
216 if (!sisusb || !sisusb->sisusb_dev || !sisusb->present)
217 return;
218
219 #ifndef SISUSB_DONTSYNC
220 if (context->actual_length)
221 *(context->actual_length) += urb->actual_length;
222 #endif
223
224 sisusb->urbstatus[context->urbindex] &= ~SU_URB_BUSY;
225 wake_up(&sisusb->wait_q);
226 }
227
228 static int
229 sisusb_bulkout_msg(struct sisusb_usb_data *sisusb, int index, unsigned int pipe, void *data,
230 int len, int *actual_length, int timeout, unsigned int tflags)
231 {
232 struct urb *urb = sisusb->sisurbout[index];
233 int retval, byteswritten = 0;
234
235 /* Set up URB */
236 urb->transfer_flags = 0;
237
238 usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len,
239 sisusb_bulk_completeout, &sisusb->urbout_context[index]);
240
241 urb->transfer_flags |= tflags;
242 urb->actual_length = 0;
243
244 /* Set up context */
245 sisusb->urbout_context[index].actual_length = (timeout) ?
246 NULL : actual_length;
247
248 /* Declare this urb/buffer in use */
249 sisusb->urbstatus[index] |= SU_URB_BUSY;
250
251 /* Submit URB */
252 retval = usb_submit_urb(urb, GFP_KERNEL);
253
254 /* If OK, and if timeout > 0, wait for completion */
255 if ((retval == 0) && timeout) {
256 wait_event_timeout(sisusb->wait_q,
257 (!(sisusb->urbstatus[index] & SU_URB_BUSY)),
258 timeout);
259 if (sisusb->urbstatus[index] & SU_URB_BUSY) {
260 /* URB timed out... kill it and report error */
261 usb_kill_urb(urb);
262 retval = -ETIMEDOUT;
263 } else {
264 /* Otherwise, report urb status */
265 retval = urb->status;
266 byteswritten = urb->actual_length;
267 }
268 }
269
270 if (actual_length)
271 *actual_length = byteswritten;
272
273 return retval;
274 }
275
276 /* 2. in-bulks */
277
278 /* completion callback */
279
280 static void
281 sisusb_bulk_completein(struct urb *urb)
282 {
283 struct sisusb_usb_data *sisusb = urb->context;
284
285 if (!sisusb || !sisusb->sisusb_dev || !sisusb->present)
286 return;
287
288 sisusb->completein = 1;
289 wake_up(&sisusb->wait_q);
290 }
291
292 static int
293 sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data,
294 int len, int *actual_length, int timeout, unsigned int tflags)
295 {
296 struct urb *urb = sisusb->sisurbin;
297 int retval, readbytes = 0;
298
299 urb->transfer_flags = 0;
300
301 usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len,
302 sisusb_bulk_completein, sisusb);
303
304 urb->transfer_flags |= tflags;
305 urb->actual_length = 0;
306
307 sisusb->completein = 0;
308 retval = usb_submit_urb(urb, GFP_KERNEL);
309 if (retval == 0) {
310 wait_event_timeout(sisusb->wait_q, sisusb->completein, timeout);
311 if (!sisusb->completein) {
312 /* URB timed out... kill it and report error */
313 usb_kill_urb(urb);
314 retval = -ETIMEDOUT;
315 } else {
316 /* URB completed within timeout */
317 retval = urb->status;
318 readbytes = urb->actual_length;
319 }
320 }
321
322 if (actual_length)
323 *actual_length = readbytes;
324
325 return retval;
326 }
327
328
329 /* Level 1: */
330
331 /* Send a bulk message of variable size
332 *
333 * To copy the data from userspace, give pointer to "userbuffer",
334 * to copy from (non-DMA) kernel memory, give "kernbuffer". If
335 * both of these are NULL, it is assumed, that the transfer
336 * buffer "sisusb->obuf[index]" is set up with the data to send.
337 * Index is ignored if either kernbuffer or userbuffer is set.
338 * If async is nonzero, URBs will be sent without waiting for
339 * completion of the previous URB.
340 *
341 * (return 0 on success)
342 */
343
344 static int sisusb_send_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len,
345 char *kernbuffer, const char __user *userbuffer, int index,
346 ssize_t *bytes_written, unsigned int tflags, int async)
347 {
348 int result = 0, retry, count = len;
349 int passsize, thispass, transferred_len = 0;
350 int fromuser = (userbuffer != NULL) ? 1 : 0;
351 int fromkern = (kernbuffer != NULL) ? 1 : 0;
352 unsigned int pipe;
353 char *buffer;
354
355 (*bytes_written) = 0;
356
357 /* Sanity check */
358 if (!sisusb || !sisusb->present || !sisusb->sisusb_dev)
359 return -ENODEV;
360
361 /* If we copy data from kernel or userspace, force the
362 * allocation of a buffer/urb. If we have the data in
363 * the transfer buffer[index] already, reuse the buffer/URB
364 * if the length is > buffer size. (So, transmitting
365 * large data amounts directly from the transfer buffer
366 * treats the buffer as a ring buffer. However, we need
367 * to sync in this case.)
368 */
369 if (fromuser || fromkern)
370 index = -1;
371 else if (len > sisusb->obufsize)
372 async = 0;
373
374 pipe = usb_sndbulkpipe(sisusb->sisusb_dev, ep);
375
376 do {
377 passsize = thispass = (sisusb->obufsize < count) ?
378 sisusb->obufsize : count;
379
380 if (index < 0)
381 index = sisusb_get_free_outbuf(sisusb);
382
383 if (index < 0)
384 return -EIO;
385
386 buffer = sisusb->obuf[index];
387
388 if (fromuser) {
389
390 if (copy_from_user(buffer, userbuffer, passsize))
391 return -EFAULT;
392
393 userbuffer += passsize;
394
395 } else if (fromkern) {
396
397 memcpy(buffer, kernbuffer, passsize);
398 kernbuffer += passsize;
399
400 }
401
402 retry = 5;
403 while (thispass) {
404
405 if (!sisusb->sisusb_dev)
406 return -ENODEV;
407
408 result = sisusb_bulkout_msg(sisusb,
409 index,
410 pipe,
411 buffer,
412 thispass,
413 &transferred_len,
414 async ? 0 : 5 * HZ,
415 tflags);
416
417 if (result == -ETIMEDOUT) {
418
419 /* Will not happen if async */
420 if (!retry--)
421 return -ETIME;
422
423 continue;
424 }
425
426 if ((result == 0) && !async && transferred_len) {
427
428 thispass -= transferred_len;
429 buffer += transferred_len;
430
431 } else
432 break;
433 }
434
435 if (result)
436 return result;
437
438 (*bytes_written) += passsize;
439 count -= passsize;
440
441 /* Force new allocation in next iteration */
442 if (fromuser || fromkern)
443 index = -1;
444
445 } while (count > 0);
446
447 if (async) {
448 #ifdef SISUSB_DONTSYNC
449 (*bytes_written) = len;
450 /* Some URBs/buffers might be busy */
451 #else
452 sisusb_wait_all_out_complete(sisusb);
453 (*bytes_written) = transferred_len;
454 /* All URBs and all buffers are available */
455 #endif
456 }
457
458 return ((*bytes_written) == len) ? 0 : -EIO;
459 }
460
461 /* Receive a bulk message of variable size
462 *
463 * To copy the data to userspace, give pointer to "userbuffer",
464 * to copy to kernel memory, give "kernbuffer". One of them
465 * MUST be set. (There is no technique for letting the caller
466 * read directly from the ibuf.)
467 *
468 */
469
470 static int sisusb_recv_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len,
471 void *kernbuffer, char __user *userbuffer, ssize_t *bytes_read,
472 unsigned int tflags)
473 {
474 int result = 0, retry, count = len;
475 int bufsize, thispass, transferred_len;
476 unsigned int pipe;
477 char *buffer;
478
479 (*bytes_read) = 0;
480
481 /* Sanity check */
482 if (!sisusb || !sisusb->present || !sisusb->sisusb_dev)
483 return -ENODEV;
484
485 pipe = usb_rcvbulkpipe(sisusb->sisusb_dev, ep);
486 buffer = sisusb->ibuf;
487 bufsize = sisusb->ibufsize;
488
489 retry = 5;
490
491 #ifdef SISUSB_DONTSYNC
492 if (!(sisusb_wait_all_out_complete(sisusb)))
493 return -EIO;
494 #endif
495
496 while (count > 0) {
497
498 if (!sisusb->sisusb_dev)
499 return -ENODEV;
500
501 thispass = (bufsize < count) ? bufsize : count;
502
503 result = sisusb_bulkin_msg(sisusb,
504 pipe,
505 buffer,
506 thispass,
507 &transferred_len,
508 5 * HZ,
509 tflags);
510
511 if (transferred_len)
512 thispass = transferred_len;
513
514 else if (result == -ETIMEDOUT) {
515
516 if (!retry--)
517 return -ETIME;
518
519 continue;
520
521 } else
522 return -EIO;
523
524
525 if (thispass) {
526
527 (*bytes_read) += thispass;
528 count -= thispass;
529
530 if (userbuffer) {
531
532 if (copy_to_user(userbuffer, buffer, thispass))
533 return -EFAULT;
534
535 userbuffer += thispass;
536
537 } else {
538
539 memcpy(kernbuffer, buffer, thispass);
540 kernbuffer += thispass;
541
542 }
543
544 }
545
546 }
547
548 return ((*bytes_read) == len) ? 0 : -EIO;
549 }
550
551 static int sisusb_send_packet(struct sisusb_usb_data *sisusb, int len,
552 struct sisusb_packet *packet)
553 {
554 int ret;
555 ssize_t bytes_transferred = 0;
556 __le32 tmp;
557
558 if (len == 6)
559 packet->data = 0;
560
561 #ifdef SISUSB_DONTSYNC
562 if (!(sisusb_wait_all_out_complete(sisusb)))
563 return 1;
564 #endif
565
566 /* Eventually correct endianness */
567 SISUSB_CORRECT_ENDIANNESS_PACKET(packet);
568
569 /* 1. send the packet */
570 ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_GFX_OUT, len,
571 (char *)packet, NULL, 0, &bytes_transferred, 0, 0);
572
573 if ((ret == 0) && (len == 6)) {
574
575 /* 2. if packet len == 6, it means we read, so wait for 32bit
576 * return value and write it to packet->data
577 */
578 ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_GFX_IN, 4,
579 (char *)&tmp, NULL, &bytes_transferred, 0);
580
581 packet->data = le32_to_cpu(tmp);
582 }
583
584 return ret;
585 }
586
587 static int sisusb_send_bridge_packet(struct sisusb_usb_data *sisusb, int len,
588 struct sisusb_packet *packet,
589 unsigned int tflags)
590 {
591 int ret;
592 ssize_t bytes_transferred = 0;
593 __le32 tmp;
594
595 if (len == 6)
596 packet->data = 0;
597
598 #ifdef SISUSB_DONTSYNC
599 if (!(sisusb_wait_all_out_complete(sisusb)))
600 return 1;
601 #endif
602
603 /* Eventually correct endianness */
604 SISUSB_CORRECT_ENDIANNESS_PACKET(packet);
605
606 /* 1. send the packet */
607 ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_BRIDGE_OUT, len,
608 (char *)packet, NULL, 0, &bytes_transferred, tflags, 0);
609
610 if ((ret == 0) && (len == 6)) {
611
612 /* 2. if packet len == 6, it means we read, so wait for 32bit
613 * return value and write it to packet->data
614 */
615 ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_BRIDGE_IN, 4,
616 (char *)&tmp, NULL, &bytes_transferred, 0);
617
618 packet->data = le32_to_cpu(tmp);
619 }
620
621 return ret;
622 }
623
624 /* access video memory and mmio (return 0 on success) */
625
626 /* Low level */
627
628 /* The following routines assume being used to transfer byte, word,
629 * long etc.
630 * This means that
631 * - the write routines expect "data" in machine endianness format.
632 * The data will be converted to leXX in sisusb_xxx_packet.
633 * - the read routines can expect read data in machine-endianess.
634 */
635
636 static int sisusb_write_memio_byte(struct sisusb_usb_data *sisusb, int type,
637 u32 addr, u8 data)
638 {
639 struct sisusb_packet packet;
640 int ret;
641
642 packet.header = (1 << (addr & 3)) | (type << 6);
643 packet.address = addr & ~3;
644 packet.data = data << ((addr & 3) << 3);
645 ret = sisusb_send_packet(sisusb, 10, &packet);
646 return ret;
647 }
648
649 static int sisusb_write_memio_word(struct sisusb_usb_data *sisusb, int type,
650 u32 addr, u16 data)
651 {
652 struct sisusb_packet packet;
653 int ret = 0;
654
655 packet.address = addr & ~3;
656
657 switch (addr & 3) {
658 case 0:
659 packet.header = (type << 6) | 0x0003;
660 packet.data = (u32)data;
661 ret = sisusb_send_packet(sisusb, 10, &packet);
662 break;
663 case 1:
664 packet.header = (type << 6) | 0x0006;
665 packet.data = (u32)data << 8;
666 ret = sisusb_send_packet(sisusb, 10, &packet);
667 break;
668 case 2:
669 packet.header = (type << 6) | 0x000c;
670 packet.data = (u32)data << 16;
671 ret = sisusb_send_packet(sisusb, 10, &packet);
672 break;
673 case 3:
674 packet.header = (type << 6) | 0x0008;
675 packet.data = (u32)data << 24;
676 ret = sisusb_send_packet(sisusb, 10, &packet);
677 packet.header = (type << 6) | 0x0001;
678 packet.address = (addr & ~3) + 4;
679 packet.data = (u32)data >> 8;
680 ret |= sisusb_send_packet(sisusb, 10, &packet);
681 }
682
683 return ret;
684 }
685
686 static int sisusb_write_memio_24bit(struct sisusb_usb_data *sisusb, int type,
687 u32 addr, u32 data)
688 {
689 struct sisusb_packet packet;
690 int ret = 0;
691
692 packet.address = addr & ~3;
693
694 switch (addr & 3) {
695 case 0:
696 packet.header = (type << 6) | 0x0007;
697 packet.data = data & 0x00ffffff;
698 ret = sisusb_send_packet(sisusb, 10, &packet);
699 break;
700 case 1:
701 packet.header = (type << 6) | 0x000e;
702 packet.data = data << 8;
703 ret = sisusb_send_packet(sisusb, 10, &packet);
704 break;
705 case 2:
706 packet.header = (type << 6) | 0x000c;
707 packet.data = data << 16;
708 ret = sisusb_send_packet(sisusb, 10, &packet);
709 packet.header = (type << 6) | 0x0001;
710 packet.address = (addr & ~3) + 4;
711 packet.data = (data >> 16) & 0x00ff;
712 ret |= sisusb_send_packet(sisusb, 10, &packet);
713 break;
714 case 3:
715 packet.header = (type << 6) | 0x0008;
716 packet.data = data << 24;
717 ret = sisusb_send_packet(sisusb, 10, &packet);
718 packet.header = (type << 6) | 0x0003;
719 packet.address = (addr & ~3) + 4;
720 packet.data = (data >> 8) & 0xffff;
721 ret |= sisusb_send_packet(sisusb, 10, &packet);
722 }
723
724 return ret;
725 }
726
727 static int sisusb_write_memio_long(struct sisusb_usb_data *sisusb, int type,
728 u32 addr, u32 data)
729 {
730 struct sisusb_packet packet;
731 int ret = 0;
732
733 packet.address = addr & ~3;
734
735 switch (addr & 3) {
736 case 0:
737 packet.header = (type << 6) | 0x000f;
738 packet.data = data;
739 ret = sisusb_send_packet(sisusb, 10, &packet);
740 break;
741 case 1:
742 packet.header = (type << 6) | 0x000e;
743 packet.data = data << 8;
744 ret = sisusb_send_packet(sisusb, 10, &packet);
745 packet.header = (type << 6) | 0x0001;
746 packet.address = (addr & ~3) + 4;
747 packet.data = data >> 24;
748 ret |= sisusb_send_packet(sisusb, 10, &packet);
749 break;
750 case 2:
751 packet.header = (type << 6) | 0x000c;
752 packet.data = data << 16;
753 ret = sisusb_send_packet(sisusb, 10, &packet);
754 packet.header = (type << 6) | 0x0003;
755 packet.address = (addr & ~3) + 4;
756 packet.data = data >> 16;
757 ret |= sisusb_send_packet(sisusb, 10, &packet);
758 break;
759 case 3:
760 packet.header = (type << 6) | 0x0008;
761 packet.data = data << 24;
762 ret = sisusb_send_packet(sisusb, 10, &packet);
763 packet.header = (type << 6) | 0x0007;
764 packet.address = (addr & ~3) + 4;
765 packet.data = data >> 8;
766 ret |= sisusb_send_packet(sisusb, 10, &packet);
767 }
768
769 return ret;
770 }
771
772 /* The xxx_bulk routines copy a buffer of variable size. They treat the
773 * buffer as chars, therefore lsb/msb has to be corrected if using the
774 * byte/word/long/etc routines for speed-up
775 *
776 * If data is from userland, set "userbuffer" (and clear "kernbuffer"),
777 * if data is in kernel space, set "kernbuffer" (and clear "userbuffer");
778 * if neither "kernbuffer" nor "userbuffer" are given, it is assumed
779 * that the data already is in the transfer buffer "sisusb->obuf[index]".
780 */
781
782 static int sisusb_write_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr,
783 char *kernbuffer, int length,
784 const char __user *userbuffer, int index,
785 ssize_t *bytes_written)
786 {
787 struct sisusb_packet packet;
788 int ret = 0;
789 static int msgcount = 0;
790 u8 swap8, fromkern = kernbuffer ? 1 : 0;
791 u16 swap16;
792 u32 swap32, flag = (length >> 28) & 1;
793 char buf[4];
794
795 /* if neither kernbuffer not userbuffer are given, assume
796 * data in obuf
797 */
798 if (!fromkern && !userbuffer)
799 kernbuffer = sisusb->obuf[index];
800
801 (*bytes_written = 0);
802
803 length &= 0x00ffffff;
804
805 while (length) {
806
807 switch (length) {
808
809 case 1:
810 if (userbuffer) {
811 if (get_user(swap8, (u8 __user *)userbuffer))
812 return -EFAULT;
813 } else
814 swap8 = kernbuffer[0];
815
816 ret = sisusb_write_memio_byte(sisusb,
817 SISUSB_TYPE_MEM,
818 addr, swap8);
819
820 if (!ret)
821 (*bytes_written)++;
822
823 return ret;
824
825 case 2:
826 if (userbuffer) {
827 if (get_user(swap16, (u16 __user *)userbuffer))
828 return -EFAULT;
829 } else
830 swap16 = *((u16 *)kernbuffer);
831
832 ret = sisusb_write_memio_word(sisusb,
833 SISUSB_TYPE_MEM,
834 addr,
835 swap16);
836
837 if (!ret)
838 (*bytes_written) += 2;
839
840 return ret;
841
842 case 3:
843 if (userbuffer) {
844 if (copy_from_user(&buf, userbuffer, 3))
845 return -EFAULT;
846 #ifdef __BIG_ENDIAN
847 swap32 = (buf[0] << 16) |
848 (buf[1] << 8) |
849 buf[2];
850 #else
851 swap32 = (buf[2] << 16) |
852 (buf[1] << 8) |
853 buf[0];
854 #endif
855 } else
856 #ifdef __BIG_ENDIAN
857 swap32 = (kernbuffer[0] << 16) |
858 (kernbuffer[1] << 8) |
859 kernbuffer[2];
860 #else
861 swap32 = (kernbuffer[2] << 16) |
862 (kernbuffer[1] << 8) |
863 kernbuffer[0];
864 #endif
865
866 ret = sisusb_write_memio_24bit(sisusb,
867 SISUSB_TYPE_MEM,
868 addr,
869 swap32);
870
871 if (!ret)
872 (*bytes_written) += 3;
873
874 return ret;
875
876 case 4:
877 if (userbuffer) {
878 if (get_user(swap32, (u32 __user *)userbuffer))
879 return -EFAULT;
880 } else
881 swap32 = *((u32 *)kernbuffer);
882
883 ret = sisusb_write_memio_long(sisusb,
884 SISUSB_TYPE_MEM,
885 addr,
886 swap32);
887 if (!ret)
888 (*bytes_written) += 4;
889
890 return ret;
891
892 default:
893 if ((length & ~3) > 0x10000) {
894
895 packet.header = 0x001f;
896 packet.address = 0x000001d4;
897 packet.data = addr;
898 ret = sisusb_send_bridge_packet(sisusb, 10,
899 &packet, 0);
900 packet.header = 0x001f;
901 packet.address = 0x000001d0;
902 packet.data = (length & ~3);
903 ret |= sisusb_send_bridge_packet(sisusb, 10,
904 &packet, 0);
905 packet.header = 0x001f;
906 packet.address = 0x000001c0;
907 packet.data = flag | 0x16;
908 ret |= sisusb_send_bridge_packet(sisusb, 10,
909 &packet, 0);
910 if (userbuffer) {
911 ret |= sisusb_send_bulk_msg(sisusb,
912 SISUSB_EP_GFX_LBULK_OUT,
913 (length & ~3),
914 NULL, userbuffer, 0,
915 bytes_written, 0, 1);
916 userbuffer += (*bytes_written);
917 } else if (fromkern) {
918 ret |= sisusb_send_bulk_msg(sisusb,
919 SISUSB_EP_GFX_LBULK_OUT,
920 (length & ~3),
921 kernbuffer, NULL, 0,
922 bytes_written, 0, 1);
923 kernbuffer += (*bytes_written);
924 } else {
925 ret |= sisusb_send_bulk_msg(sisusb,
926 SISUSB_EP_GFX_LBULK_OUT,
927 (length & ~3),
928 NULL, NULL, index,
929 bytes_written, 0, 1);
930 kernbuffer += ((*bytes_written) &
931 (sisusb->obufsize-1));
932 }
933
934 } else {
935
936 packet.header = 0x001f;
937 packet.address = 0x00000194;
938 packet.data = addr;
939 ret = sisusb_send_bridge_packet(sisusb, 10,
940 &packet, 0);
941 packet.header = 0x001f;
942 packet.address = 0x00000190;
943 packet.data = (length & ~3);
944 ret |= sisusb_send_bridge_packet(sisusb, 10,
945 &packet, 0);
946 if (sisusb->flagb0 != 0x16) {
947 packet.header = 0x001f;
948 packet.address = 0x00000180;
949 packet.data = flag | 0x16;
950 ret |= sisusb_send_bridge_packet(sisusb, 10,
951 &packet, 0);
952 sisusb->flagb0 = 0x16;
953 }
954 if (userbuffer) {
955 ret |= sisusb_send_bulk_msg(sisusb,
956 SISUSB_EP_GFX_BULK_OUT,
957 (length & ~3),
958 NULL, userbuffer, 0,
959 bytes_written, 0, 1);
960 userbuffer += (*bytes_written);
961 } else if (fromkern) {
962 ret |= sisusb_send_bulk_msg(sisusb,
963 SISUSB_EP_GFX_BULK_OUT,
964 (length & ~3),
965 kernbuffer, NULL, 0,
966 bytes_written, 0, 1);
967 kernbuffer += (*bytes_written);
968 } else {
969 ret |= sisusb_send_bulk_msg(sisusb,
970 SISUSB_EP_GFX_BULK_OUT,
971 (length & ~3),
972 NULL, NULL, index,
973 bytes_written, 0, 1);
974 kernbuffer += ((*bytes_written) &
975 (sisusb->obufsize-1));
976 }
977 }
978 if (ret) {
979 msgcount++;
980 if (msgcount < 500)
981 dev_err(&sisusb->sisusb_dev->dev, "Wrote %zd of %d bytes, error %d\n",
982 *bytes_written, length, ret);
983 else if (msgcount == 500)
984 dev_err(&sisusb->sisusb_dev->dev, "Too many errors, logging stopped\n");
985 }
986 addr += (*bytes_written);
987 length -= (*bytes_written);
988 }
989
990 if (ret)
991 break;
992
993 }
994
995 return ret ? -EIO : 0;
996 }
997
998 /* Remember: Read data in packet is in machine-endianess! So for
999 * byte, word, 24bit, long no endian correction is necessary.
1000 */
1001
1002 static int sisusb_read_memio_byte(struct sisusb_usb_data *sisusb, int type,
1003 u32 addr, u8 *data)
1004 {
1005 struct sisusb_packet packet;
1006 int ret;
1007
1008 CLEARPACKET(&packet);
1009 packet.header = (1 << (addr & 3)) | (type << 6);
1010 packet.address = addr & ~3;
1011 ret = sisusb_send_packet(sisusb, 6, &packet);
1012 *data = (u8)(packet.data >> ((addr & 3) << 3));
1013 return ret;
1014 }
1015
1016 static int sisusb_read_memio_word(struct sisusb_usb_data *sisusb, int type,
1017 u32 addr, u16 *data)
1018 {
1019 struct sisusb_packet packet;
1020 int ret = 0;
1021
1022 CLEARPACKET(&packet);
1023
1024 packet.address = addr & ~3;
1025
1026 switch (addr & 3) {
1027 case 0:
1028 packet.header = (type << 6) | 0x0003;
1029 ret = sisusb_send_packet(sisusb, 6, &packet);
1030 *data = (u16)(packet.data);
1031 break;
1032 case 1:
1033 packet.header = (type << 6) | 0x0006;
1034 ret = sisusb_send_packet(sisusb, 6, &packet);
1035 *data = (u16)(packet.data >> 8);
1036 break;
1037 case 2:
1038 packet.header = (type << 6) | 0x000c;
1039 ret = sisusb_send_packet(sisusb, 6, &packet);
1040 *data = (u16)(packet.data >> 16);
1041 break;
1042 case 3:
1043 packet.header = (type << 6) | 0x0008;
1044 ret = sisusb_send_packet(sisusb, 6, &packet);
1045 *data = (u16)(packet.data >> 24);
1046 packet.header = (type << 6) | 0x0001;
1047 packet.address = (addr & ~3) + 4;
1048 ret |= sisusb_send_packet(sisusb, 6, &packet);
1049 *data |= (u16)(packet.data << 8);
1050 }
1051
1052 return ret;
1053 }
1054
1055 static int sisusb_read_memio_24bit(struct sisusb_usb_data *sisusb, int type,
1056 u32 addr, u32 *data)
1057 {
1058 struct sisusb_packet packet;
1059 int ret = 0;
1060
1061 packet.address = addr & ~3;
1062
1063 switch (addr & 3) {
1064 case 0:
1065 packet.header = (type << 6) | 0x0007;
1066 ret = sisusb_send_packet(sisusb, 6, &packet);
1067 *data = packet.data & 0x00ffffff;
1068 break;
1069 case 1:
1070 packet.header = (type << 6) | 0x000e;
1071 ret = sisusb_send_packet(sisusb, 6, &packet);
1072 *data = packet.data >> 8;
1073 break;
1074 case 2:
1075 packet.header = (type << 6) | 0x000c;
1076 ret = sisusb_send_packet(sisusb, 6, &packet);
1077 *data = packet.data >> 16;
1078 packet.header = (type << 6) | 0x0001;
1079 packet.address = (addr & ~3) + 4;
1080 ret |= sisusb_send_packet(sisusb, 6, &packet);
1081 *data |= ((packet.data & 0xff) << 16);
1082 break;
1083 case 3:
1084 packet.header = (type << 6) | 0x0008;
1085 ret = sisusb_send_packet(sisusb, 6, &packet);
1086 *data = packet.data >> 24;
1087 packet.header = (type << 6) | 0x0003;
1088 packet.address = (addr & ~3) + 4;
1089 ret |= sisusb_send_packet(sisusb, 6, &packet);
1090 *data |= ((packet.data & 0xffff) << 8);
1091 }
1092
1093 return ret;
1094 }
1095
1096 static int sisusb_read_memio_long(struct sisusb_usb_data *sisusb, int type,
1097 u32 addr, u32 *data)
1098 {
1099 struct sisusb_packet packet;
1100 int ret = 0;
1101
1102 packet.address = addr & ~3;
1103
1104 switch (addr & 3) {
1105 case 0:
1106 packet.header = (type << 6) | 0x000f;
1107 ret = sisusb_send_packet(sisusb, 6, &packet);
1108 *data = packet.data;
1109 break;
1110 case 1:
1111 packet.header = (type << 6) | 0x000e;
1112 ret = sisusb_send_packet(sisusb, 6, &packet);
1113 *data = packet.data >> 8;
1114 packet.header = (type << 6) | 0x0001;
1115 packet.address = (addr & ~3) + 4;
1116 ret |= sisusb_send_packet(sisusb, 6, &packet);
1117 *data |= (packet.data << 24);
1118 break;
1119 case 2:
1120 packet.header = (type << 6) | 0x000c;
1121 ret = sisusb_send_packet(sisusb, 6, &packet);
1122 *data = packet.data >> 16;
1123 packet.header = (type << 6) | 0x0003;
1124 packet.address = (addr & ~3) + 4;
1125 ret |= sisusb_send_packet(sisusb, 6, &packet);
1126 *data |= (packet.data << 16);
1127 break;
1128 case 3:
1129 packet.header = (type << 6) | 0x0008;
1130 ret = sisusb_send_packet(sisusb, 6, &packet);
1131 *data = packet.data >> 24;
1132 packet.header = (type << 6) | 0x0007;
1133 packet.address = (addr & ~3) + 4;
1134 ret |= sisusb_send_packet(sisusb, 6, &packet);
1135 *data |= (packet.data << 8);
1136 }
1137
1138 return ret;
1139 }
1140
1141 static int sisusb_read_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr,
1142 char *kernbuffer, int length,
1143 char __user *userbuffer, ssize_t *bytes_read)
1144 {
1145 int ret = 0;
1146 char buf[4];
1147 u16 swap16;
1148 u32 swap32;
1149
1150 (*bytes_read = 0);
1151
1152 length &= 0x00ffffff;
1153
1154 while (length) {
1155
1156 switch (length) {
1157
1158 case 1:
1159
1160 ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM,
1161 addr, &buf[0]);
1162 if (!ret) {
1163 (*bytes_read)++;
1164 if (userbuffer) {
1165 if (put_user(buf[0],
1166 (u8 __user *)userbuffer)) {
1167 return -EFAULT;
1168 }
1169 } else {
1170 kernbuffer[0] = buf[0];
1171 }
1172 }
1173 return ret;
1174
1175 case 2:
1176 ret |= sisusb_read_memio_word(sisusb, SISUSB_TYPE_MEM,
1177 addr, &swap16);
1178 if (!ret) {
1179 (*bytes_read) += 2;
1180 if (userbuffer) {
1181 if (put_user(swap16,
1182 (u16 __user *)userbuffer))
1183 return -EFAULT;
1184 } else {
1185 *((u16 *)kernbuffer) = swap16;
1186 }
1187 }
1188 return ret;
1189
1190 case 3:
1191 ret |= sisusb_read_memio_24bit(sisusb, SISUSB_TYPE_MEM,
1192 addr, &swap32);
1193 if (!ret) {
1194 (*bytes_read) += 3;
1195 #ifdef __BIG_ENDIAN
1196 buf[0] = (swap32 >> 16) & 0xff;
1197 buf[1] = (swap32 >> 8) & 0xff;
1198 buf[2] = swap32 & 0xff;
1199 #else
1200 buf[2] = (swap32 >> 16) & 0xff;
1201 buf[1] = (swap32 >> 8) & 0xff;
1202 buf[0] = swap32 & 0xff;
1203 #endif
1204 if (userbuffer) {
1205 if (copy_to_user(userbuffer, &buf[0], 3))
1206 return -EFAULT;
1207 } else {
1208 kernbuffer[0] = buf[0];
1209 kernbuffer[1] = buf[1];
1210 kernbuffer[2] = buf[2];
1211 }
1212 }
1213 return ret;
1214
1215 default:
1216 ret |= sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM,
1217 addr, &swap32);
1218 if (!ret) {
1219 (*bytes_read) += 4;
1220 if (userbuffer) {
1221 if (put_user(swap32,
1222 (u32 __user *)userbuffer))
1223 return -EFAULT;
1224
1225 userbuffer += 4;
1226 } else {
1227 *((u32 *)kernbuffer) = swap32;
1228 kernbuffer += 4;
1229 }
1230 addr += 4;
1231 length -= 4;
1232 }
1233 }
1234
1235 if (ret)
1236 break;
1237 }
1238
1239 return ret;
1240 }
1241
1242 /* High level: Gfx (indexed) register access */
1243
1244 #ifdef INCL_SISUSB_CON
1245 int
1246 sisusb_setreg(struct sisusb_usb_data *sisusb, int port, u8 data)
1247 {
1248 return sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, data);
1249 }
1250
1251 int
1252 sisusb_getreg(struct sisusb_usb_data *sisusb, int port, u8 *data)
1253 {
1254 return sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port, data);
1255 }
1256 #endif
1257
1258 int
1259 sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 data)
1260 {
1261 int ret;
1262 ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index);
1263 ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data);
1264 return ret;
1265 }
1266
1267 int
1268 sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 *data)
1269 {
1270 int ret;
1271 ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index);
1272 ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data);
1273 return ret;
1274 }
1275
1276 int
1277 sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port, u8 idx,
1278 u8 myand, u8 myor)
1279 {
1280 int ret;
1281 u8 tmp;
1282
1283 ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx);
1284 ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp);
1285 tmp &= myand;
1286 tmp |= myor;
1287 ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp);
1288 return ret;
1289 }
1290
1291 static int
1292 sisusb_setidxregmask(struct sisusb_usb_data *sisusb, int port, u8 idx,
1293 u8 data, u8 mask)
1294 {
1295 int ret;
1296 u8 tmp;
1297 ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx);
1298 ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp);
1299 tmp &= ~(mask);
1300 tmp |= (data & mask);
1301 ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp);
1302 return ret;
1303 }
1304
1305 int
1306 sisusb_setidxregor(struct sisusb_usb_data *sisusb, int port, u8 index, u8 myor)
1307 {
1308 return(sisusb_setidxregandor(sisusb, port, index, 0xff, myor));
1309 }
1310
1311 int
1312 sisusb_setidxregand(struct sisusb_usb_data *sisusb, int port, u8 idx, u8 myand)
1313 {
1314 return(sisusb_setidxregandor(sisusb, port, idx, myand, 0x00));
1315 }
1316
1317 /* Write/read video ram */
1318
1319 #ifdef INCL_SISUSB_CON
1320 int
1321 sisusb_writeb(struct sisusb_usb_data *sisusb, u32 adr, u8 data)
1322 {
1323 return(sisusb_write_memio_byte(sisusb, SISUSB_TYPE_MEM, adr, data));
1324 }
1325
1326 int
1327 sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 *data)
1328 {
1329 return(sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, adr, data));
1330 }
1331
1332 int
1333 sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src,
1334 u32 dest, int length, size_t *bytes_written)
1335 {
1336 return(sisusb_write_mem_bulk(sisusb, dest, src, length, NULL, 0, bytes_written));
1337 }
1338
1339 #ifdef SISUSBENDIANTEST
1340 int
1341 sisusb_read_memory(struct sisusb_usb_data *sisusb, char *dest,
1342 u32 src, int length, size_t *bytes_written)
1343 {
1344 return(sisusb_read_mem_bulk(sisusb, src, dest, length, NULL, bytes_written));
1345 }
1346 #endif
1347 #endif
1348
1349 #ifdef SISUSBENDIANTEST
1350 static void
1351 sisusb_testreadwrite(struct sisusb_usb_data *sisusb)
1352 {
1353 static char srcbuffer[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
1354 char destbuffer[10];
1355 size_t dummy;
1356 int i,j;
1357
1358 sisusb_copy_memory(sisusb, srcbuffer, sisusb->vrambase, 7, &dummy);
1359
1360 for(i = 1; i <= 7; i++) {
1361 dev_dbg(&sisusb->sisusb_dev->dev, "sisusb: rwtest %d bytes\n", i);
1362 sisusb_read_memory(sisusb, destbuffer, sisusb->vrambase, i, &dummy);
1363 for(j = 0; j < i; j++) {
1364 dev_dbg(&sisusb->sisusb_dev->dev, "rwtest read[%d] = %x\n", j, destbuffer[j]);
1365 }
1366 }
1367 }
1368 #endif
1369
1370 /* access pci config registers (reg numbers 0, 4, 8, etc) */
1371
1372 static int
1373 sisusb_write_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 data)
1374 {
1375 struct sisusb_packet packet;
1376 int ret;
1377
1378 packet.header = 0x008f;
1379 packet.address = regnum | 0x10000;
1380 packet.data = data;
1381 ret = sisusb_send_packet(sisusb, 10, &packet);
1382 return ret;
1383 }
1384
1385 static int
1386 sisusb_read_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 *data)
1387 {
1388 struct sisusb_packet packet;
1389 int ret;
1390
1391 packet.header = 0x008f;
1392 packet.address = (u32)regnum | 0x10000;
1393 ret = sisusb_send_packet(sisusb, 6, &packet);
1394 *data = packet.data;
1395 return ret;
1396 }
1397
1398 /* Clear video RAM */
1399
1400 static int
1401 sisusb_clear_vram(struct sisusb_usb_data *sisusb, u32 address, int length)
1402 {
1403 int ret, i;
1404 ssize_t j;
1405
1406 if (address < sisusb->vrambase)
1407 return 1;
1408
1409 if (address >= sisusb->vrambase + sisusb->vramsize)
1410 return 1;
1411
1412 if (address + length > sisusb->vrambase + sisusb->vramsize)
1413 length = sisusb->vrambase + sisusb->vramsize - address;
1414
1415 if (length <= 0)
1416 return 0;
1417
1418 /* allocate free buffer/urb and clear the buffer */
1419 if ((i = sisusb_alloc_outbuf(sisusb)) < 0)
1420 return -EBUSY;
1421
1422 memset(sisusb->obuf[i], 0, sisusb->obufsize);
1423
1424 /* We can write a length > buffer size here. The buffer
1425 * data will simply be re-used (like a ring-buffer).
1426 */
1427 ret = sisusb_write_mem_bulk(sisusb, address, NULL, length, NULL, i, &j);
1428
1429 /* Free the buffer/urb */
1430 sisusb_free_outbuf(sisusb, i);
1431
1432 return ret;
1433 }
1434
1435 /* Initialize the graphics core (return 0 on success)
1436 * This resets the graphics hardware and puts it into
1437 * a defined mode (640x480@60Hz)
1438 */
1439
1440 #define GETREG(r,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, r, d)
1441 #define SETREG(r,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, r, d)
1442 #define SETIREG(r,i,d) sisusb_setidxreg(sisusb, r, i, d)
1443 #define GETIREG(r,i,d) sisusb_getidxreg(sisusb, r, i, d)
1444 #define SETIREGOR(r,i,o) sisusb_setidxregor(sisusb, r, i, o)
1445 #define SETIREGAND(r,i,a) sisusb_setidxregand(sisusb, r, i, a)
1446 #define SETIREGANDOR(r,i,a,o) sisusb_setidxregandor(sisusb, r, i, a, o)
1447 #define READL(a,d) sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM, a, d)
1448 #define WRITEL(a,d) sisusb_write_memio_long(sisusb, SISUSB_TYPE_MEM, a, d)
1449 #define READB(a,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d)
1450 #define WRITEB(a,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d)
1451
1452 static int
1453 sisusb_triggersr16(struct sisusb_usb_data *sisusb, u8 ramtype)
1454 {
1455 int ret;
1456 u8 tmp8;
1457
1458 ret = GETIREG(SISSR, 0x16, &tmp8);
1459 if (ramtype <= 1) {
1460 tmp8 &= 0x3f;
1461 ret |= SETIREG(SISSR, 0x16, tmp8);
1462 tmp8 |= 0x80;
1463 ret |= SETIREG(SISSR, 0x16, tmp8);
1464 } else {
1465 tmp8 |= 0xc0;
1466 ret |= SETIREG(SISSR, 0x16, tmp8);
1467 tmp8 &= 0x0f;
1468 ret |= SETIREG(SISSR, 0x16, tmp8);
1469 tmp8 |= 0x80;
1470 ret |= SETIREG(SISSR, 0x16, tmp8);
1471 tmp8 &= 0x0f;
1472 ret |= SETIREG(SISSR, 0x16, tmp8);
1473 tmp8 |= 0xd0;
1474 ret |= SETIREG(SISSR, 0x16, tmp8);
1475 tmp8 &= 0x0f;
1476 ret |= SETIREG(SISSR, 0x16, tmp8);
1477 tmp8 |= 0xa0;
1478 ret |= SETIREG(SISSR, 0x16, tmp8);
1479 }
1480 return ret;
1481 }
1482
1483 static int
1484 sisusb_getbuswidth(struct sisusb_usb_data *sisusb, int *bw, int *chab)
1485 {
1486 int ret;
1487 u8 ramtype, done = 0;
1488 u32 t0, t1, t2, t3;
1489 u32 ramptr = SISUSB_PCI_MEMBASE;
1490
1491 ret = GETIREG(SISSR, 0x3a, &ramtype);
1492 ramtype &= 3;
1493
1494 ret |= SETIREG(SISSR, 0x13, 0x00);
1495
1496 if (ramtype <= 1) {
1497 ret |= SETIREG(SISSR, 0x14, 0x12);
1498 ret |= SETIREGAND(SISSR, 0x15, 0xef);
1499 } else {
1500 ret |= SETIREG(SISSR, 0x14, 0x02);
1501 }
1502
1503 ret |= sisusb_triggersr16(sisusb, ramtype);
1504 ret |= WRITEL(ramptr + 0, 0x01234567);
1505 ret |= WRITEL(ramptr + 4, 0x456789ab);
1506 ret |= WRITEL(ramptr + 8, 0x89abcdef);
1507 ret |= WRITEL(ramptr + 12, 0xcdef0123);
1508 ret |= WRITEL(ramptr + 16, 0x55555555);
1509 ret |= WRITEL(ramptr + 20, 0x55555555);
1510 ret |= WRITEL(ramptr + 24, 0xffffffff);
1511 ret |= WRITEL(ramptr + 28, 0xffffffff);
1512 ret |= READL(ramptr + 0, &t0);
1513 ret |= READL(ramptr + 4, &t1);
1514 ret |= READL(ramptr + 8, &t2);
1515 ret |= READL(ramptr + 12, &t3);
1516
1517 if (ramtype <= 1) {
1518
1519 *chab = 0; *bw = 64;
1520
1521 if ((t3 != 0xcdef0123) || (t2 != 0x89abcdef)) {
1522 if ((t1 == 0x456789ab) && (t0 == 0x01234567)) {
1523 *chab = 0; *bw = 64;
1524 ret |= SETIREGAND(SISSR, 0x14, 0xfd);
1525 }
1526 }
1527 if ((t1 != 0x456789ab) || (t0 != 0x01234567)) {
1528 *chab = 1; *bw = 64;
1529 ret |= SETIREGANDOR(SISSR, 0x14, 0xfc,0x01);
1530
1531 ret |= sisusb_triggersr16(sisusb, ramtype);
1532 ret |= WRITEL(ramptr + 0, 0x89abcdef);
1533 ret |= WRITEL(ramptr + 4, 0xcdef0123);
1534 ret |= WRITEL(ramptr + 8, 0x55555555);
1535 ret |= WRITEL(ramptr + 12, 0x55555555);
1536 ret |= WRITEL(ramptr + 16, 0xaaaaaaaa);
1537 ret |= WRITEL(ramptr + 20, 0xaaaaaaaa);
1538 ret |= READL(ramptr + 4, &t1);
1539
1540 if (t1 != 0xcdef0123) {
1541 *bw = 32;
1542 ret |= SETIREGOR(SISSR, 0x15, 0x10);
1543 }
1544 }
1545
1546 } else {
1547
1548 *chab = 0; *bw = 64; /* default: cha, bw = 64 */
1549
1550 done = 0;
1551
1552 if (t1 == 0x456789ab) {
1553 if (t0 == 0x01234567) {
1554 *chab = 0; *bw = 64;
1555 done = 1;
1556 }
1557 } else {
1558 if (t0 == 0x01234567) {
1559 *chab = 0; *bw = 32;
1560 ret |= SETIREG(SISSR, 0x14, 0x00);
1561 done = 1;
1562 }
1563 }
1564
1565 if (!done) {
1566 ret |= SETIREG(SISSR, 0x14, 0x03);
1567 ret |= sisusb_triggersr16(sisusb, ramtype);
1568
1569 ret |= WRITEL(ramptr + 0, 0x01234567);
1570 ret |= WRITEL(ramptr + 4, 0x456789ab);
1571 ret |= WRITEL(ramptr + 8, 0x89abcdef);
1572 ret |= WRITEL(ramptr + 12, 0xcdef0123);
1573 ret |= WRITEL(ramptr + 16, 0x55555555);
1574 ret |= WRITEL(ramptr + 20, 0x55555555);
1575 ret |= WRITEL(ramptr + 24, 0xffffffff);
1576 ret |= WRITEL(ramptr + 28, 0xffffffff);
1577 ret |= READL(ramptr + 0, &t0);
1578 ret |= READL(ramptr + 4, &t1);
1579
1580 if (t1 == 0x456789ab) {
1581 if (t0 == 0x01234567) {
1582 *chab = 1; *bw = 64;
1583 return ret;
1584 } /* else error */
1585 } else {
1586 if (t0 == 0x01234567) {
1587 *chab = 1; *bw = 32;
1588 ret |= SETIREG(SISSR, 0x14, 0x01);
1589 } /* else error */
1590 }
1591 }
1592 }
1593 return ret;
1594 }
1595
1596 static int
1597 sisusb_verify_mclk(struct sisusb_usb_data *sisusb)
1598 {
1599 int ret = 0;
1600 u32 ramptr = SISUSB_PCI_MEMBASE;
1601 u8 tmp1, tmp2, i, j;
1602
1603 ret |= WRITEB(ramptr, 0xaa);
1604 ret |= WRITEB(ramptr + 16, 0x55);
1605 ret |= READB(ramptr, &tmp1);
1606 ret |= READB(ramptr + 16, &tmp2);
1607 if ((tmp1 != 0xaa) || (tmp2 != 0x55)) {
1608 for (i = 0, j = 16; i < 2; i++, j += 16) {
1609 ret |= GETIREG(SISSR, 0x21, &tmp1);
1610 ret |= SETIREGAND(SISSR, 0x21, (tmp1 & 0xfb));
1611 ret |= SETIREGOR(SISSR, 0x3c, 0x01); /* not on 330 */
1612 ret |= SETIREGAND(SISSR, 0x3c, 0xfe); /* not on 330 */
1613 ret |= SETIREG(SISSR, 0x21, tmp1);
1614 ret |= WRITEB(ramptr + 16 + j, j);
1615 ret |= READB(ramptr + 16 + j, &tmp1);
1616 if (tmp1 == j) {
1617 ret |= WRITEB(ramptr + j, j);
1618 break;
1619 }
1620 }
1621 }
1622 return ret;
1623 }
1624
1625 static int
1626 sisusb_set_rank(struct sisusb_usb_data *sisusb, int *iret, int index,
1627 u8 rankno, u8 chab, const u8 dramtype[][5],
1628 int bw)
1629 {
1630 int ret = 0, ranksize;
1631 u8 tmp;
1632
1633 *iret = 0;
1634
1635 if ((rankno == 2) && (dramtype[index][0] == 2))
1636 return ret;
1637
1638 ranksize = dramtype[index][3] / 2 * bw / 32;
1639
1640 if ((ranksize * rankno) > 128)
1641 return ret;
1642
1643 tmp = 0;
1644 while ((ranksize >>= 1) > 0) tmp += 0x10;
1645 tmp |= ((rankno - 1) << 2);
1646 tmp |= ((bw / 64) & 0x02);
1647 tmp |= (chab & 0x01);
1648
1649 ret = SETIREG(SISSR, 0x14, tmp);
1650 ret |= sisusb_triggersr16(sisusb, 0); /* sic! */
1651
1652 *iret = 1;
1653
1654 return ret;
1655 }
1656
1657 static int
1658 sisusb_check_rbc(struct sisusb_usb_data *sisusb, int *iret, u32 inc, int testn)
1659 {
1660 int ret = 0, i;
1661 u32 j, tmp;
1662
1663 *iret = 0;
1664
1665 for (i = 0, j = 0; i < testn; i++) {
1666 ret |= WRITEL(sisusb->vrambase + j, j);
1667 j += inc;
1668 }
1669
1670 for (i = 0, j = 0; i < testn; i++) {
1671 ret |= READL(sisusb->vrambase + j, &tmp);
1672 if (tmp != j) return ret;
1673 j += inc;
1674 }
1675
1676 *iret = 1;
1677 return ret;
1678 }
1679
1680 static int
1681 sisusb_check_ranks(struct sisusb_usb_data *sisusb, int *iret, int rankno,
1682 int idx, int bw, const u8 rtype[][5])
1683 {
1684 int ret = 0, i, i2ret;
1685 u32 inc;
1686
1687 *iret = 0;
1688
1689 for (i = rankno; i >= 1; i--) {
1690 inc = 1 << (rtype[idx][2] +
1691 rtype[idx][1] +
1692 rtype[idx][0] +
1693 bw / 64 + i);
1694 ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2);
1695 if (!i2ret)
1696 return ret;
1697 }
1698
1699 inc = 1 << (rtype[idx][2] + bw / 64 + 2);
1700 ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 4);
1701 if (!i2ret)
1702 return ret;
1703
1704 inc = 1 << (10 + bw / 64);
1705 ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2);
1706 if (!i2ret)
1707 return ret;
1708
1709 *iret = 1;
1710 return ret;
1711 }
1712
1713 static int
1714 sisusb_get_sdram_size(struct sisusb_usb_data *sisusb, int *iret, int bw,
1715 int chab)
1716 {
1717 int ret = 0, i2ret = 0, i, j;
1718 static const u8 sdramtype[13][5] = {
1719 { 2, 12, 9, 64, 0x35 },
1720 { 1, 13, 9, 64, 0x44 },
1721 { 2, 12, 8, 32, 0x31 },
1722 { 2, 11, 9, 32, 0x25 },
1723 { 1, 12, 9, 32, 0x34 },
1724 { 1, 13, 8, 32, 0x40 },
1725 { 2, 11, 8, 16, 0x21 },
1726 { 1, 12, 8, 16, 0x30 },
1727 { 1, 11, 9, 16, 0x24 },
1728 { 1, 11, 8, 8, 0x20 },
1729 { 2, 9, 8, 4, 0x01 },
1730 { 1, 10, 8, 4, 0x10 },
1731 { 1, 9, 8, 2, 0x00 }
1732 };
1733
1734 *iret = 1; /* error */
1735
1736 for (i = 0; i < 13; i++) {
1737 ret |= SETIREGANDOR(SISSR, 0x13, 0x80, sdramtype[i][4]);
1738 for (j = 2; j > 0; j--) {
1739 ret |= sisusb_set_rank(sisusb, &i2ret, i, j,
1740 chab, sdramtype, bw);
1741 if (!i2ret)
1742 continue;
1743
1744 ret |= sisusb_check_ranks(sisusb, &i2ret, j, i,
1745 bw, sdramtype);
1746 if (i2ret) {
1747 *iret = 0; /* ram size found */
1748 return ret;
1749 }
1750 }
1751 }
1752
1753 return ret;
1754 }
1755
1756 static int
1757 sisusb_setup_screen(struct sisusb_usb_data *sisusb, int clrall, int drwfr)
1758 {
1759 int ret = 0;
1760 u32 address;
1761 int i, length, modex, modey, bpp;
1762
1763 modex = 640; modey = 480; bpp = 2;
1764
1765 address = sisusb->vrambase; /* Clear video ram */
1766
1767 if (clrall)
1768 length = sisusb->vramsize;
1769 else
1770 length = modex * bpp * modey;
1771
1772 ret = sisusb_clear_vram(sisusb, address, length);
1773
1774 if (!ret && drwfr) {
1775 for (i = 0; i < modex; i++) {
1776 address = sisusb->vrambase + (i * bpp);
1777 ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM,
1778 address, 0xf100);
1779 address += (modex * (modey-1) * bpp);
1780 ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM,
1781 address, 0xf100);
1782 }
1783 for (i = 0; i < modey; i++) {
1784 address = sisusb->vrambase + ((i * modex) * bpp);
1785 ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM,
1786 address, 0xf100);
1787 address += ((modex - 1) * bpp);
1788 ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM,
1789 address, 0xf100);
1790 }
1791 }
1792
1793 return ret;
1794 }
1795
1796 static int
1797 sisusb_set_default_mode(struct sisusb_usb_data *sisusb, int touchengines)
1798 {
1799 int ret = 0, i, j, modex, modey, bpp, du;
1800 u8 sr31, cr63, tmp8;
1801 static const char attrdata[] = {
1802 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
1803 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
1804 0x01,0x00,0x00,0x00
1805 };
1806 static const char crtcrdata[] = {
1807 0x5f,0x4f,0x50,0x82,0x54,0x80,0x0b,0x3e,
1808 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,
1809 0xea,0x8c,0xdf,0x28,0x40,0xe7,0x04,0xa3,
1810 0xff
1811 };
1812 static const char grcdata[] = {
1813 0x00,0x00,0x00,0x00,0x00,0x40,0x05,0x0f,
1814 0xff
1815 };
1816 static const char crtcdata[] = {
1817 0x5f,0x4f,0x4f,0x83,0x55,0x81,0x0b,0x3e,
1818 0xe9,0x8b,0xdf,0xe8,0x0c,0x00,0x00,0x05,
1819 0x00
1820 };
1821
1822 modex = 640; modey = 480; bpp = 2;
1823
1824 GETIREG(SISSR, 0x31, &sr31);
1825 GETIREG(SISCR, 0x63, &cr63);
1826 SETIREGOR(SISSR, 0x01, 0x20);
1827 SETIREG(SISCR, 0x63, cr63 & 0xbf);
1828 SETIREGOR(SISCR, 0x17, 0x80);
1829 SETIREGOR(SISSR, 0x1f, 0x04);
1830 SETIREGAND(SISSR, 0x07, 0xfb);
1831 SETIREG(SISSR, 0x00, 0x03); /* seq */
1832 SETIREG(SISSR, 0x01, 0x21);
1833 SETIREG(SISSR, 0x02, 0x0f);
1834 SETIREG(SISSR, 0x03, 0x00);
1835 SETIREG(SISSR, 0x04, 0x0e);
1836 SETREG(SISMISCW, 0x23); /* misc */
1837 for (i = 0; i <= 0x18; i++) { /* crtc */
1838 SETIREG(SISCR, i, crtcrdata[i]);
1839 }
1840 for (i = 0; i <= 0x13; i++) { /* att */
1841 GETREG(SISINPSTAT, &tmp8);
1842 SETREG(SISAR, i);
1843 SETREG(SISAR, attrdata[i]);
1844 }
1845 GETREG(SISINPSTAT, &tmp8);
1846 SETREG(SISAR, 0x14);
1847 SETREG(SISAR, 0x00);
1848 GETREG(SISINPSTAT, &tmp8);
1849 SETREG(SISAR, 0x20);
1850 GETREG(SISINPSTAT, &tmp8);
1851 for (i = 0; i <= 0x08; i++) { /* grc */
1852 SETIREG(SISGR, i, grcdata[i]);
1853 }
1854 SETIREGAND(SISGR, 0x05, 0xbf);
1855 for (i = 0x0A; i <= 0x0E; i++) { /* clr ext */
1856 SETIREG(SISSR, i, 0x00);
1857 }
1858 SETIREGAND(SISSR, 0x37, 0xfe);
1859 SETREG(SISMISCW, 0xef); /* sync */
1860 SETIREG(SISCR, 0x11, 0x00); /* crtc */
1861 for (j = 0x00, i = 0; i <= 7; i++, j++) {
1862 SETIREG(SISCR, j, crtcdata[i]);
1863 }
1864 for (j = 0x10; i <= 10; i++, j++) {
1865 SETIREG(SISCR, j, crtcdata[i]);
1866 }
1867 for (j = 0x15; i <= 12; i++, j++) {
1868 SETIREG(SISCR, j, crtcdata[i]);
1869 }
1870 for (j = 0x0A; i <= 15; i++, j++) {
1871 SETIREG(SISSR, j, crtcdata[i]);
1872 }
1873 SETIREG(SISSR, 0x0E, (crtcdata[16] & 0xE0));
1874 SETIREGANDOR(SISCR, 0x09, 0x5f, ((crtcdata[16] & 0x01) << 5));
1875 SETIREG(SISCR, 0x14, 0x4f);
1876 du = (modex / 16) * (bpp * 2); /* offset/pitch */
1877 if (modex % 16) du += bpp;
1878 SETIREGANDOR(SISSR, 0x0e, 0xf0, ((du >> 8) & 0x0f));
1879 SETIREG(SISCR, 0x13, (du & 0xff));
1880 du <<= 5;
1881 tmp8 = du >> 8;
1882 if (du & 0xff) tmp8++;
1883 SETIREG(SISSR, 0x10, tmp8);
1884 SETIREG(SISSR, 0x31, 0x00); /* VCLK */
1885 SETIREG(SISSR, 0x2b, 0x1b);
1886 SETIREG(SISSR, 0x2c, 0xe1);
1887 SETIREG(SISSR, 0x2d, 0x01);
1888 SETIREGAND(SISSR, 0x3d, 0xfe); /* FIFO */
1889 SETIREG(SISSR, 0x08, 0xae);
1890 SETIREGAND(SISSR, 0x09, 0xf0);
1891 SETIREG(SISSR, 0x08, 0x34);
1892 SETIREGOR(SISSR, 0x3d, 0x01);
1893 SETIREGAND(SISSR, 0x1f, 0x3f); /* mode regs */
1894 SETIREGANDOR(SISSR, 0x06, 0xc0, 0x0a);
1895 SETIREG(SISCR, 0x19, 0x00);
1896 SETIREGAND(SISCR, 0x1a, 0xfc);
1897 SETIREGAND(SISSR, 0x0f, 0xb7);
1898 SETIREGAND(SISSR, 0x31, 0xfb);
1899 SETIREGANDOR(SISSR, 0x21, 0x1f, 0xa0);
1900 SETIREGAND(SISSR, 0x32, 0xf3);
1901 SETIREGANDOR(SISSR, 0x07, 0xf8, 0x03);
1902 SETIREG(SISCR, 0x52, 0x6c);
1903
1904 SETIREG(SISCR, 0x0d, 0x00); /* adjust frame */
1905 SETIREG(SISCR, 0x0c, 0x00);
1906 SETIREG(SISSR, 0x0d, 0x00);
1907 SETIREGAND(SISSR, 0x37, 0xfe);
1908
1909 SETIREG(SISCR, 0x32, 0x20);
1910 SETIREGAND(SISSR, 0x01, 0xdf); /* enable display */
1911 SETIREG(SISCR, 0x63, (cr63 & 0xbf));
1912 SETIREG(SISSR, 0x31, (sr31 & 0xfb));
1913
1914 if (touchengines) {
1915 SETIREG(SISSR, 0x20, 0xa1); /* enable engines */
1916 SETIREGOR(SISSR, 0x1e, 0x5a);
1917
1918 SETIREG(SISSR, 0x26, 0x01); /* disable cmdqueue */
1919 SETIREG(SISSR, 0x27, 0x1f);
1920 SETIREG(SISSR, 0x26, 0x00);
1921 }
1922
1923 SETIREG(SISCR, 0x34, 0x44); /* we just set std mode #44 */
1924
1925 return ret;
1926 }
1927
1928 static int
1929 sisusb_init_gfxcore(struct sisusb_usb_data *sisusb)
1930 {
1931 int ret = 0, i, j, bw, chab, iret, retry = 3;
1932 u8 tmp8, ramtype;
1933 u32 tmp32;
1934 static const char mclktable[] = {
1935 0x3b, 0x22, 0x01, 143,
1936 0x3b, 0x22, 0x01, 143,
1937 0x3b, 0x22, 0x01, 143,
1938 0x3b, 0x22, 0x01, 143
1939 };
1940 static const char eclktable[] = {
1941 0x3b, 0x22, 0x01, 143,
1942 0x3b, 0x22, 0x01, 143,
1943 0x3b, 0x22, 0x01, 143,
1944 0x3b, 0x22, 0x01, 143
1945 };
1946 static const char ramtypetable1[] = {
1947 0x00, 0x04, 0x60, 0x60,
1948 0x0f, 0x0f, 0x1f, 0x1f,
1949 0xba, 0xba, 0xba, 0xba,
1950 0xa9, 0xa9, 0xac, 0xac,
1951 0xa0, 0xa0, 0xa0, 0xa8,
1952 0x00, 0x00, 0x02, 0x02,
1953 0x30, 0x30, 0x40, 0x40
1954 };
1955 static const char ramtypetable2[] = {
1956 0x77, 0x77, 0x44, 0x44,
1957 0x77, 0x77, 0x44, 0x44,
1958 0x00, 0x00, 0x00, 0x00,
1959 0x5b, 0x5b, 0xab, 0xab,
1960 0x00, 0x00, 0xf0, 0xf8
1961 };
1962
1963 while (retry--) {
1964
1965 /* Enable VGA */
1966 ret = GETREG(SISVGAEN, &tmp8);
1967 ret |= SETREG(SISVGAEN, (tmp8 | 0x01));
1968
1969 /* Enable GPU access to VRAM */
1970 ret |= GETREG(SISMISCR, &tmp8);
1971 ret |= SETREG(SISMISCW, (tmp8 | 0x01));
1972
1973 if (ret) continue;
1974
1975 /* Reset registers */
1976 ret |= SETIREGAND(SISCR, 0x5b, 0xdf);
1977 ret |= SETIREG(SISSR, 0x05, 0x86);
1978 ret |= SETIREGOR(SISSR, 0x20, 0x01);
1979
1980 ret |= SETREG(SISMISCW, 0x67);
1981
1982 for (i = 0x06; i <= 0x1f; i++) {
1983 ret |= SETIREG(SISSR, i, 0x00);
1984 }
1985 for (i = 0x21; i <= 0x27; i++) {
1986 ret |= SETIREG(SISSR, i, 0x00);
1987 }
1988 for (i = 0x31; i <= 0x3d; i++) {
1989 ret |= SETIREG(SISSR, i, 0x00);
1990 }
1991 for (i = 0x12; i <= 0x1b; i++) {
1992 ret |= SETIREG(SISSR, i, 0x00);
1993 }
1994 for (i = 0x79; i <= 0x7c; i++) {
1995 ret |= SETIREG(SISCR, i, 0x00);
1996 }
1997
1998 if (ret) continue;
1999
2000 ret |= SETIREG(SISCR, 0x63, 0x80);
2001
2002 ret |= GETIREG(SISSR, 0x3a, &ramtype);
2003 ramtype &= 0x03;
2004
2005 ret |= SETIREG(SISSR, 0x28, mclktable[ramtype * 4]);
2006 ret |= SETIREG(SISSR, 0x29, mclktable[(ramtype * 4) + 1]);
2007 ret |= SETIREG(SISSR, 0x2a, mclktable[(ramtype * 4) + 2]);
2008
2009 ret |= SETIREG(SISSR, 0x2e, eclktable[ramtype * 4]);
2010 ret |= SETIREG(SISSR, 0x2f, eclktable[(ramtype * 4) + 1]);
2011 ret |= SETIREG(SISSR, 0x30, eclktable[(ramtype * 4) + 2]);
2012
2013 ret |= SETIREG(SISSR, 0x07, 0x18);
2014 ret |= SETIREG(SISSR, 0x11, 0x0f);
2015
2016 if (ret) continue;
2017
2018 for (i = 0x15, j = 0; i <= 0x1b; i++, j++) {
2019 ret |= SETIREG(SISSR, i, ramtypetable1[(j*4) + ramtype]);
2020 }
2021 for (i = 0x40, j = 0; i <= 0x44; i++, j++) {
2022 ret |= SETIREG(SISCR, i, ramtypetable2[(j*4) + ramtype]);
2023 }
2024
2025 ret |= SETIREG(SISCR, 0x49, 0xaa);
2026
2027 ret |= SETIREG(SISSR, 0x1f, 0x00);
2028 ret |= SETIREG(SISSR, 0x20, 0xa0);
2029 ret |= SETIREG(SISSR, 0x23, 0xf6);
2030 ret |= SETIREG(SISSR, 0x24, 0x0d);
2031 ret |= SETIREG(SISSR, 0x25, 0x33);
2032
2033 ret |= SETIREG(SISSR, 0x11, 0x0f);
2034
2035 ret |= SETIREGOR(SISPART1, 0x2f, 0x01);
2036
2037 ret |= SETIREGAND(SISCAP, 0x3f, 0xef);
2038
2039 if (ret) continue;
2040
2041 ret |= SETIREG(SISPART1, 0x00, 0x00);
2042
2043 ret |= GETIREG(SISSR, 0x13, &tmp8);
2044 tmp8 >>= 4;
2045
2046 ret |= SETIREG(SISPART1, 0x02, 0x00);
2047 ret |= SETIREG(SISPART1, 0x2e, 0x08);
2048
2049 ret |= sisusb_read_pci_config(sisusb, 0x50, &tmp32);
2050 tmp32 &= 0x00f00000;
2051 tmp8 = (tmp32 == 0x100000) ? 0x33 : 0x03;
2052 ret |= SETIREG(SISSR, 0x25, tmp8);
2053 tmp8 = (tmp32 == 0x100000) ? 0xaa : 0x88;
2054 ret |= SETIREG(SISCR, 0x49, tmp8);
2055
2056 ret |= SETIREG(SISSR, 0x27, 0x1f);
2057 ret |= SETIREG(SISSR, 0x31, 0x00);
2058 ret |= SETIREG(SISSR, 0x32, 0x11);
2059 ret |= SETIREG(SISSR, 0x33, 0x00);
2060
2061 if (ret) continue;
2062
2063 ret |= SETIREG(SISCR, 0x83, 0x00);
2064
2065 ret |= sisusb_set_default_mode(sisusb, 0);
2066
2067 ret |= SETIREGAND(SISSR, 0x21, 0xdf);
2068 ret |= SETIREGOR(SISSR, 0x01, 0x20);
2069 ret |= SETIREGOR(SISSR, 0x16, 0x0f);
2070
2071 ret |= sisusb_triggersr16(sisusb, ramtype);
2072
2073 /* Disable refresh */
2074 ret |= SETIREGAND(SISSR, 0x17, 0xf8);
2075 ret |= SETIREGOR(SISSR, 0x19, 0x03);
2076
2077 ret |= sisusb_getbuswidth(sisusb, &bw, &chab);
2078 ret |= sisusb_verify_mclk(sisusb);
2079
2080 if (ramtype <= 1) {
2081 ret |= sisusb_get_sdram_size(sisusb, &iret, bw, chab);
2082 if (iret) {
2083 dev_err(&sisusb->sisusb_dev->dev,"RAM size detection failed, assuming 8MB video RAM\n");
2084 ret |= SETIREG(SISSR,0x14,0x31);
2085 /* TODO */
2086 }
2087 } else {
2088 dev_err(&sisusb->sisusb_dev->dev, "DDR RAM device found, assuming 8MB video RAM\n");
2089 ret |= SETIREG(SISSR,0x14,0x31);
2090 /* *** TODO *** */
2091 }
2092
2093 /* Enable refresh */
2094 ret |= SETIREG(SISSR, 0x16, ramtypetable1[4 + ramtype]);
2095 ret |= SETIREG(SISSR, 0x17, ramtypetable1[8 + ramtype]);
2096 ret |= SETIREG(SISSR, 0x19, ramtypetable1[16 + ramtype]);
2097
2098 ret |= SETIREGOR(SISSR, 0x21, 0x20);
2099
2100 ret |= SETIREG(SISSR, 0x22, 0xfb);
2101 ret |= SETIREG(SISSR, 0x21, 0xa5);
2102
2103 if (ret == 0)
2104 break;
2105 }
2106
2107 return ret;
2108 }
2109
2110 #undef SETREG
2111 #undef GETREG
2112 #undef SETIREG
2113 #undef GETIREG
2114 #undef SETIREGOR
2115 #undef SETIREGAND
2116 #undef SETIREGANDOR
2117 #undef READL
2118 #undef WRITEL
2119
2120 static void
2121 sisusb_get_ramconfig(struct sisusb_usb_data *sisusb)
2122 {
2123 u8 tmp8, tmp82, ramtype;
2124 int bw = 0;
2125 char *ramtypetext1 = NULL;
2126 static const char ram_datarate[4] = {'S', 'S', 'D', 'D'};
2127 static const char ram_dynamictype[4] = {'D', 'G', 'D', 'G'};
2128 static const int busSDR[4] = {64, 64, 128, 128};
2129 static const int busDDR[4] = {32, 32, 64, 64};
2130 static const int busDDRA[4] = {64+32, 64+32 , (64+32)*2, (64+32)*2};
2131
2132 sisusb_getidxreg(sisusb, SISSR, 0x14, &tmp8);
2133 sisusb_getidxreg(sisusb, SISSR, 0x15, &tmp82);
2134 sisusb_getidxreg(sisusb, SISSR, 0x3a, &ramtype);
2135 sisusb->vramsize = (1 << ((tmp8 & 0xf0) >> 4)) * 1024 * 1024;
2136 ramtype &= 0x03;
2137 switch ((tmp8 >> 2) & 0x03) {
2138 case 0: ramtypetext1 = "1 ch/1 r";
2139 if (tmp82 & 0x10) {
2140 bw = 32;
2141 } else {
2142 bw = busSDR[(tmp8 & 0x03)];
2143 }
2144 break;
2145 case 1: ramtypetext1 = "1 ch/2 r";
2146 sisusb->vramsize <<= 1;
2147 bw = busSDR[(tmp8 & 0x03)];
2148 break;
2149 case 2: ramtypetext1 = "asymmeric";
2150 sisusb->vramsize += sisusb->vramsize/2;
2151 bw = busDDRA[(tmp8 & 0x03)];
2152 break;
2153 case 3: ramtypetext1 = "2 channel";
2154 sisusb->vramsize <<= 1;
2155 bw = busDDR[(tmp8 & 0x03)];
2156 break;
2157 }
2158
2159
2160 dev_info(&sisusb->sisusb_dev->dev, "%dMB %s %cDR S%cRAM, bus width %d\n",
2161 sisusb->vramsize >> 20, ramtypetext1,
2162 ram_datarate[ramtype], ram_dynamictype[ramtype], bw);
2163 }
2164
2165 static int
2166 sisusb_do_init_gfxdevice(struct sisusb_usb_data *sisusb)
2167 {
2168 struct sisusb_packet packet;
2169 int ret;
2170 u32 tmp32;
2171
2172 /* Do some magic */
2173 packet.header = 0x001f;
2174 packet.address = 0x00000324;
2175 packet.data = 0x00000004;
2176 ret = sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2177
2178 packet.header = 0x001f;
2179 packet.address = 0x00000364;
2180 packet.data = 0x00000004;
2181 ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2182
2183 packet.header = 0x001f;
2184 packet.address = 0x00000384;
2185 packet.data = 0x00000004;
2186 ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2187
2188 packet.header = 0x001f;
2189 packet.address = 0x00000100;
2190 packet.data = 0x00000700;
2191 ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2192
2193 packet.header = 0x000f;
2194 packet.address = 0x00000004;
2195 ret |= sisusb_send_bridge_packet(sisusb, 6, &packet, 0);
2196 packet.data |= 0x17;
2197 ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2198
2199 /* Init BAR 0 (VRAM) */
2200 ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32);
2201 ret |= sisusb_write_pci_config(sisusb, 0x10, 0xfffffff0);
2202 ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32);
2203 tmp32 &= 0x0f;
2204 tmp32 |= SISUSB_PCI_MEMBASE;
2205 ret |= sisusb_write_pci_config(sisusb, 0x10, tmp32);
2206
2207 /* Init BAR 1 (MMIO) */
2208 ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32);
2209 ret |= sisusb_write_pci_config(sisusb, 0x14, 0xfffffff0);
2210 ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32);
2211 tmp32 &= 0x0f;
2212 tmp32 |= SISUSB_PCI_MMIOBASE;
2213 ret |= sisusb_write_pci_config(sisusb, 0x14, tmp32);
2214
2215 /* Init BAR 2 (i/o ports) */
2216 ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32);
2217 ret |= sisusb_write_pci_config(sisusb, 0x18, 0xfffffff0);
2218 ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32);
2219 tmp32 &= 0x0f;
2220 tmp32 |= SISUSB_PCI_IOPORTBASE;
2221 ret |= sisusb_write_pci_config(sisusb, 0x18, tmp32);
2222
2223 /* Enable memory and i/o access */
2224 ret |= sisusb_read_pci_config(sisusb, 0x04, &tmp32);
2225 tmp32 |= 0x3;
2226 ret |= sisusb_write_pci_config(sisusb, 0x04, tmp32);
2227
2228 if (ret == 0) {
2229 /* Some further magic */
2230 packet.header = 0x001f;
2231 packet.address = 0x00000050;
2232 packet.data = 0x000000ff;
2233 ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0);
2234 }
2235
2236 return ret;
2237 }
2238
2239 /* Initialize the graphics device (return 0 on success)
2240 * This initializes the net2280 as well as the PCI registers
2241 * of the graphics board.
2242 */
2243
2244 static int
2245 sisusb_init_gfxdevice(struct sisusb_usb_data *sisusb, int initscreen)
2246 {
2247 int ret = 0, test = 0;
2248 u32 tmp32;
2249
2250 if (sisusb->devinit == 1) {
2251 /* Read PCI BARs and see if they have been set up */
2252 ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32);
2253 if (ret) return ret;
2254 if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MEMBASE) test++;
2255
2256 ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32);
2257 if (ret) return ret;
2258 if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MMIOBASE) test++;
2259
2260 ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32);
2261 if (ret) return ret;
2262 if ((tmp32 & 0xfffffff0) == SISUSB_PCI_IOPORTBASE) test++;
2263 }
2264
2265 /* No? So reset the device */
2266 if ((sisusb->devinit == 0) || (test != 3)) {
2267
2268 ret |= sisusb_do_init_gfxdevice(sisusb);
2269
2270 if (ret == 0)
2271 sisusb->devinit = 1;
2272
2273 }
2274
2275 if (sisusb->devinit) {
2276 /* Initialize the graphics core */
2277 if (sisusb_init_gfxcore(sisusb) == 0) {
2278 sisusb->gfxinit = 1;
2279 sisusb_get_ramconfig(sisusb);
2280 ret |= sisusb_set_default_mode(sisusb, 1);
2281 ret |= sisusb_setup_screen(sisusb, 1, initscreen);
2282 }
2283 }
2284
2285 return ret;
2286 }
2287
2288
2289 #ifdef INCL_SISUSB_CON
2290
2291 /* Set up default text mode:
2292 - Set text mode (0x03)
2293 - Upload default font
2294 - Upload user font (if available)
2295 */
2296
2297 int
2298 sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init)
2299 {
2300 int ret = 0, slot = sisusb->font_slot, i;
2301 const struct font_desc *myfont;
2302 u8 *tempbuf;
2303 u16 *tempbufb;
2304 size_t written;
2305 static const char bootstring[] = "SiSUSB VGA text console, (C) 2005 Thomas Winischhofer.";
2306 static const char bootlogo[] = "(o_ //\\ V_/_";
2307
2308 /* sisusb->lock is down */
2309
2310 if (!sisusb->SiS_Pr)
2311 return 1;
2312
2313 sisusb->SiS_Pr->IOAddress = SISUSB_PCI_IOPORTBASE + 0x30;
2314 sisusb->SiS_Pr->sisusb = (void *)sisusb;
2315
2316 /* Set mode 0x03 */
2317 SiSUSBSetMode(sisusb->SiS_Pr, 0x03);
2318
2319 myfont = find_font("VGA8x16");
2320 if (!myfont)
2321 return 1;
2322
2323 tempbuf = vmalloc(8192);
2324 if (!tempbuf)
2325 return 1;
2326
2327 for (i = 0; i < 256; i++)
2328 memcpy(tempbuf + (i * 32), myfont->data + (i * 16), 16);
2329
2330 /* Upload default font */
2331 ret = sisusbcon_do_font_op(sisusb, 1, 0, tempbuf, 8192, 0, 1, NULL, 16, 0);
2332
2333 vfree(tempbuf);
2334
2335 /* Upload user font (and reset current slot) */
2336 if (sisusb->font_backup) {
2337 ret |= sisusbcon_do_font_op(sisusb, 1, 2, sisusb->font_backup,
2338 8192, sisusb->font_backup_512, 1, NULL,
2339 sisusb->font_backup_height, 0);
2340 if (slot != 2)
2341 sisusbcon_do_font_op(sisusb, 1, 0, NULL, 0, 0, 1,
2342 NULL, 16, 0);
2343 }
2344
2345 if (init && !sisusb->scrbuf) {
2346
2347 tempbuf = vmalloc(8192);
2348 if (tempbuf) {
2349
2350 i = 4096;
2351 tempbufb = (u16 *)tempbuf;
2352 while (i--)
2353 *(tempbufb++) = 0x0720;
2354
2355 i = 0;
2356 tempbufb = (u16 *)tempbuf;
2357 while (bootlogo[i]) {
2358 *(tempbufb++) = 0x0700 | bootlogo[i++];
2359 if (!(i % 4))
2360 tempbufb += 76;
2361 }
2362
2363 i = 0;
2364 tempbufb = (u16 *)tempbuf + 6;
2365 while (bootstring[i])
2366 *(tempbufb++) = 0x0700 | bootstring[i++];
2367
2368 ret |= sisusb_copy_memory(sisusb, tempbuf,
2369 sisusb->vrambase, 8192, &written);
2370
2371 vfree(tempbuf);
2372
2373 }
2374
2375 } else if (sisusb->scrbuf) {
2376
2377 ret |= sisusb_copy_memory(sisusb, (char *)sisusb->scrbuf,
2378 sisusb->vrambase, sisusb->scrbuf_size, &written);
2379
2380 }
2381
2382 if (sisusb->sisusb_cursor_size_from >= 0 &&
2383 sisusb->sisusb_cursor_size_to >= 0) {
2384 sisusb_setidxreg(sisusb, SISCR, 0x0a,
2385 sisusb->sisusb_cursor_size_from);
2386 sisusb_setidxregandor(sisusb, SISCR, 0x0b, 0xe0,
2387 sisusb->sisusb_cursor_size_to);
2388 } else {
2389 sisusb_setidxreg(sisusb, SISCR, 0x0a, 0x2d);
2390 sisusb_setidxreg(sisusb, SISCR, 0x0b, 0x0e);
2391 sisusb->sisusb_cursor_size_to = -1;
2392 }
2393
2394 slot = sisusb->sisusb_cursor_loc;
2395 if(slot < 0) slot = 0;
2396
2397 sisusb->sisusb_cursor_loc = -1;
2398 sisusb->bad_cursor_pos = 1;
2399
2400 sisusb_set_cursor(sisusb, slot);
2401
2402 sisusb_setidxreg(sisusb, SISCR, 0x0c, (sisusb->cur_start_addr >> 8));
2403 sisusb_setidxreg(sisusb, SISCR, 0x0d, (sisusb->cur_start_addr & 0xff));
2404
2405 sisusb->textmodedestroyed = 0;
2406
2407 /* sisusb->lock is down */
2408
2409 return ret;
2410 }
2411
2412 #endif
2413
2414 /* fops */
2415
2416 static int
2417 sisusb_open(struct inode *inode, struct file *file)
2418 {
2419 struct sisusb_usb_data *sisusb;
2420 struct usb_interface *interface;
2421 int subminor = iminor(inode);
2422
2423 interface = usb_find_interface(&sisusb_driver, subminor);
2424 if (!interface) {
2425 return -ENODEV;
2426 }
2427
2428 sisusb = usb_get_intfdata(interface);
2429 if (!sisusb) {
2430 return -ENODEV;
2431 }
2432
2433 mutex_lock(&sisusb->lock);
2434
2435 if (!sisusb->present || !sisusb->ready) {
2436 mutex_unlock(&sisusb->lock);
2437 return -ENODEV;
2438 }
2439
2440 if (sisusb->isopen) {
2441 mutex_unlock(&sisusb->lock);
2442 return -EBUSY;
2443 }
2444
2445 if (!sisusb->devinit) {
2446 if (sisusb->sisusb_dev->speed == USB_SPEED_HIGH ||
2447 sisusb->sisusb_dev->speed == USB_SPEED_SUPER) {
2448 if (sisusb_init_gfxdevice(sisusb, 0)) {
2449 mutex_unlock(&sisusb->lock);
2450 dev_err(&sisusb->sisusb_dev->dev, "Failed to initialize device\n");
2451 return -EIO;
2452 }
2453 } else {
2454 mutex_unlock(&sisusb->lock);
2455 dev_err(&sisusb->sisusb_dev->dev, "Device not attached to USB 2.0 hub\n");
2456 return -EIO;
2457 }
2458 }
2459
2460 /* Increment usage count for our sisusb */
2461 kref_get(&sisusb->kref);
2462
2463 sisusb->isopen = 1;
2464
2465 file->private_data = sisusb;
2466
2467 mutex_unlock(&sisusb->lock);
2468
2469 return 0;
2470 }
2471
2472 void
2473 sisusb_delete(struct kref *kref)
2474 {
2475 struct sisusb_usb_data *sisusb = to_sisusb_dev(kref);
2476
2477 if (!sisusb)
2478 return;
2479
2480 usb_put_dev(sisusb->sisusb_dev);
2481
2482 sisusb->sisusb_dev = NULL;
2483 sisusb_free_buffers(sisusb);
2484 sisusb_free_urbs(sisusb);
2485 #ifdef INCL_SISUSB_CON
2486 kfree(sisusb->SiS_Pr);
2487 #endif
2488 kfree(sisusb);
2489 }
2490
2491 static int
2492 sisusb_release(struct inode *inode, struct file *file)
2493 {
2494 struct sisusb_usb_data *sisusb;
2495
2496 sisusb = file->private_data;
2497 if (!sisusb)
2498 return -ENODEV;
2499
2500 mutex_lock(&sisusb->lock);
2501
2502 if (sisusb->present) {
2503 /* Wait for all URBs to finish if device still present */
2504 if (!sisusb_wait_all_out_complete(sisusb))
2505 sisusb_kill_all_busy(sisusb);
2506 }
2507
2508 sisusb->isopen = 0;
2509 file->private_data = NULL;
2510
2511 mutex_unlock(&sisusb->lock);
2512
2513 /* decrement the usage count on our device */
2514 kref_put(&sisusb->kref, sisusb_delete);
2515
2516 return 0;
2517 }
2518
2519 static ssize_t
2520 sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
2521 {
2522 struct sisusb_usb_data *sisusb;
2523 ssize_t bytes_read = 0;
2524 int errno = 0;
2525 u8 buf8;
2526 u16 buf16;
2527 u32 buf32, address;
2528
2529 sisusb = file->private_data;
2530 if (!sisusb)
2531 return -ENODEV;
2532
2533 mutex_lock(&sisusb->lock);
2534
2535 /* Sanity check */
2536 if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) {
2537 mutex_unlock(&sisusb->lock);
2538 return -ENODEV;
2539 }
2540
2541 if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE &&
2542 (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) {
2543
2544 address = (*ppos) -
2545 SISUSB_PCI_PSEUDO_IOPORTBASE +
2546 SISUSB_PCI_IOPORTBASE;
2547
2548 /* Read i/o ports
2549 * Byte, word and long(32) can be read. As this
2550 * emulates inX instructions, the data returned is
2551 * in machine-endianness.
2552 */
2553 switch (count) {
2554
2555 case 1:
2556 if (sisusb_read_memio_byte(sisusb,
2557 SISUSB_TYPE_IO,
2558 address, &buf8))
2559 errno = -EIO;
2560 else if (put_user(buf8, (u8 __user *)buffer))
2561 errno = -EFAULT;
2562 else
2563 bytes_read = 1;
2564
2565 break;
2566
2567 case 2:
2568 if (sisusb_read_memio_word(sisusb,
2569 SISUSB_TYPE_IO,
2570 address, &buf16))
2571 errno = -EIO;
2572 else if (put_user(buf16, (u16 __user *)buffer))
2573 errno = -EFAULT;
2574 else
2575 bytes_read = 2;
2576
2577 break;
2578
2579 case 4:
2580 if (sisusb_read_memio_long(sisusb,
2581 SISUSB_TYPE_IO,
2582 address, &buf32))
2583 errno = -EIO;
2584 else if (put_user(buf32, (u32 __user *)buffer))
2585 errno = -EFAULT;
2586 else
2587 bytes_read = 4;
2588
2589 break;
2590
2591 default:
2592 errno = -EIO;
2593
2594 }
2595
2596 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE &&
2597 (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) {
2598
2599 address = (*ppos) -
2600 SISUSB_PCI_PSEUDO_MEMBASE +
2601 SISUSB_PCI_MEMBASE;
2602
2603 /* Read video ram
2604 * Remember: Data delivered is never endian-corrected
2605 */
2606 errno = sisusb_read_mem_bulk(sisusb, address,
2607 NULL, count, buffer, &bytes_read);
2608
2609 if (bytes_read)
2610 errno = bytes_read;
2611
2612 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE &&
2613 (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) {
2614
2615 address = (*ppos) -
2616 SISUSB_PCI_PSEUDO_MMIOBASE +
2617 SISUSB_PCI_MMIOBASE;
2618
2619 /* Read MMIO
2620 * Remember: Data delivered is never endian-corrected
2621 */
2622 errno = sisusb_read_mem_bulk(sisusb, address,
2623 NULL, count, buffer, &bytes_read);
2624
2625 if (bytes_read)
2626 errno = bytes_read;
2627
2628 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE &&
2629 (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + 0x5c) {
2630
2631 if (count != 4) {
2632 mutex_unlock(&sisusb->lock);
2633 return -EINVAL;
2634 }
2635
2636 address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE;
2637
2638 /* Read PCI config register
2639 * Return value delivered in machine endianness.
2640 */
2641 if (sisusb_read_pci_config(sisusb, address, &buf32))
2642 errno = -EIO;
2643 else if (put_user(buf32, (u32 __user *)buffer))
2644 errno = -EFAULT;
2645 else
2646 bytes_read = 4;
2647
2648 } else {
2649
2650 errno = -EBADFD;
2651
2652 }
2653
2654 (*ppos) += bytes_read;
2655
2656 mutex_unlock(&sisusb->lock);
2657
2658 return errno ? errno : bytes_read;
2659 }
2660
2661 static ssize_t
2662 sisusb_write(struct file *file, const char __user *buffer, size_t count,
2663 loff_t *ppos)
2664 {
2665 struct sisusb_usb_data *sisusb;
2666 int errno = 0;
2667 ssize_t bytes_written = 0;
2668 u8 buf8;
2669 u16 buf16;
2670 u32 buf32, address;
2671
2672 sisusb = file->private_data;
2673 if (!sisusb)
2674 return -ENODEV;
2675
2676 mutex_lock(&sisusb->lock);
2677
2678 /* Sanity check */
2679 if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) {
2680 mutex_unlock(&sisusb->lock);
2681 return -ENODEV;
2682 }
2683
2684 if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE &&
2685 (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) {
2686
2687 address = (*ppos) -
2688 SISUSB_PCI_PSEUDO_IOPORTBASE +
2689 SISUSB_PCI_IOPORTBASE;
2690
2691 /* Write i/o ports
2692 * Byte, word and long(32) can be written. As this
2693 * emulates outX instructions, the data is expected
2694 * in machine-endianness.
2695 */
2696 switch (count) {
2697
2698 case 1:
2699 if (get_user(buf8, (u8 __user *)buffer))
2700 errno = -EFAULT;
2701 else if (sisusb_write_memio_byte(sisusb,
2702 SISUSB_TYPE_IO,
2703 address, buf8))
2704 errno = -EIO;
2705 else
2706 bytes_written = 1;
2707
2708 break;
2709
2710 case 2:
2711 if (get_user(buf16, (u16 __user *)buffer))
2712 errno = -EFAULT;
2713 else if (sisusb_write_memio_word(sisusb,
2714 SISUSB_TYPE_IO,
2715 address, buf16))
2716 errno = -EIO;
2717 else
2718 bytes_written = 2;
2719
2720 break;
2721
2722 case 4:
2723 if (get_user(buf32, (u32 __user *)buffer))
2724 errno = -EFAULT;
2725 else if (sisusb_write_memio_long(sisusb,
2726 SISUSB_TYPE_IO,
2727 address, buf32))
2728 errno = -EIO;
2729 else
2730 bytes_written = 4;
2731
2732 break;
2733
2734 default:
2735 errno = -EIO;
2736 }
2737
2738 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE &&
2739 (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) {
2740
2741 address = (*ppos) -
2742 SISUSB_PCI_PSEUDO_MEMBASE +
2743 SISUSB_PCI_MEMBASE;
2744
2745 /* Write video ram.
2746 * Buffer is copied 1:1, therefore, on big-endian
2747 * machines, the data must be swapped by userland
2748 * in advance (if applicable; no swapping in 8bpp
2749 * mode or if YUV data is being transferred).
2750 */
2751 errno = sisusb_write_mem_bulk(sisusb, address, NULL,
2752 count, buffer, 0, &bytes_written);
2753
2754 if (bytes_written)
2755 errno = bytes_written;
2756
2757 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE &&
2758 (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) {
2759
2760 address = (*ppos) -
2761 SISUSB_PCI_PSEUDO_MMIOBASE +
2762 SISUSB_PCI_MMIOBASE;
2763
2764 /* Write MMIO.
2765 * Buffer is copied 1:1, therefore, on big-endian
2766 * machines, the data must be swapped by userland
2767 * in advance.
2768 */
2769 errno = sisusb_write_mem_bulk(sisusb, address, NULL,
2770 count, buffer, 0, &bytes_written);
2771
2772 if (bytes_written)
2773 errno = bytes_written;
2774
2775 } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE &&
2776 (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + SISUSB_PCI_PCONFSIZE) {
2777
2778 if (count != 4) {
2779 mutex_unlock(&sisusb->lock);
2780 return -EINVAL;
2781 }
2782
2783 address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE;
2784
2785 /* Write PCI config register.
2786 * Given value expected in machine endianness.
2787 */
2788 if (get_user(buf32, (u32 __user *)buffer))
2789 errno = -EFAULT;
2790 else if (sisusb_write_pci_config(sisusb, address, buf32))
2791 errno = -EIO;
2792 else
2793 bytes_written = 4;
2794
2795
2796 } else {
2797
2798 /* Error */
2799 errno = -EBADFD;
2800
2801 }
2802
2803 (*ppos) += bytes_written;
2804
2805 mutex_unlock(&sisusb->lock);
2806
2807 return errno ? errno : bytes_written;
2808 }
2809
2810 static loff_t
2811 sisusb_lseek(struct file *file, loff_t offset, int orig)
2812 {
2813 struct sisusb_usb_data *sisusb;
2814 loff_t ret;
2815
2816 sisusb = file->private_data;
2817 if (!sisusb)
2818 return -ENODEV;
2819
2820 mutex_lock(&sisusb->lock);
2821
2822 /* Sanity check */
2823 if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) {
2824 mutex_unlock(&sisusb->lock);
2825 return -ENODEV;
2826 }
2827
2828 switch (orig) {
2829 case 0:
2830 file->f_pos = offset;
2831 ret = file->f_pos;
2832 /* never negative, no force_successful_syscall needed */
2833 break;
2834 case 1:
2835 file->f_pos += offset;
2836 ret = file->f_pos;
2837 /* never negative, no force_successful_syscall needed */
2838 break;
2839 default:
2840 /* seeking relative to "end of file" is not supported */
2841 ret = -EINVAL;
2842 }
2843
2844 mutex_unlock(&sisusb->lock);
2845 return ret;
2846 }
2847
2848 static int
2849 sisusb_handle_command(struct sisusb_usb_data *sisusb, struct sisusb_command *y,
2850 unsigned long arg)
2851 {
2852 int retval, port, length;
2853 u32 address;
2854
2855 /* All our commands require the device
2856 * to be initialized.
2857 */
2858 if (!sisusb->devinit)
2859 return -ENODEV;
2860
2861 port = y->data3 -
2862 SISUSB_PCI_PSEUDO_IOPORTBASE +
2863 SISUSB_PCI_IOPORTBASE;
2864
2865 switch (y->operation) {
2866 case SUCMD_GET:
2867 retval = sisusb_getidxreg(sisusb, port,
2868 y->data0, &y->data1);
2869 if (!retval) {
2870 if (copy_to_user((void __user *)arg, y,
2871 sizeof(*y)))
2872 retval = -EFAULT;
2873 }
2874 break;
2875
2876 case SUCMD_SET:
2877 retval = sisusb_setidxreg(sisusb, port,
2878 y->data0, y->data1);
2879 break;
2880
2881 case SUCMD_SETOR:
2882 retval = sisusb_setidxregor(sisusb, port,
2883 y->data0, y->data1);
2884 break;
2885
2886 case SUCMD_SETAND:
2887 retval = sisusb_setidxregand(sisusb, port,
2888 y->data0, y->data1);
2889 break;
2890
2891 case SUCMD_SETANDOR:
2892 retval = sisusb_setidxregandor(sisusb, port,
2893 y->data0, y->data1, y->data2);
2894 break;
2895
2896 case SUCMD_SETMASK:
2897 retval = sisusb_setidxregmask(sisusb, port,
2898 y->data0, y->data1, y->data2);
2899 break;
2900
2901 case SUCMD_CLRSCR:
2902 /* Gfx core must be initialized */
2903 if (!sisusb->gfxinit)
2904 return -ENODEV;
2905
2906 length = (y->data0 << 16) | (y->data1 << 8) | y->data2;
2907 address = y->data3 -
2908 SISUSB_PCI_PSEUDO_MEMBASE +
2909 SISUSB_PCI_MEMBASE;
2910 retval = sisusb_clear_vram(sisusb, address, length);
2911 break;
2912
2913 case SUCMD_HANDLETEXTMODE:
2914 retval = 0;
2915 #ifdef INCL_SISUSB_CON
2916 /* Gfx core must be initialized, SiS_Pr must exist */
2917 if (!sisusb->gfxinit || !sisusb->SiS_Pr)
2918 return -ENODEV;
2919
2920 switch (y->data0) {
2921 case 0:
2922 retval = sisusb_reset_text_mode(sisusb, 0);
2923 break;
2924 case 1:
2925 sisusb->textmodedestroyed = 1;
2926 break;
2927 }
2928 #endif
2929 break;
2930
2931 #ifdef INCL_SISUSB_CON
2932 case SUCMD_SETMODE:
2933 /* Gfx core must be initialized, SiS_Pr must exist */
2934 if (!sisusb->gfxinit || !sisusb->SiS_Pr)
2935 return -ENODEV;
2936
2937 retval = 0;
2938
2939 sisusb->SiS_Pr->IOAddress = SISUSB_PCI_IOPORTBASE + 0x30;
2940 sisusb->SiS_Pr->sisusb = (void *)sisusb;
2941
2942 if (SiSUSBSetMode(sisusb->SiS_Pr, y->data3))
2943 retval = -EINVAL;
2944
2945 break;
2946
2947 case SUCMD_SETVESAMODE:
2948 /* Gfx core must be initialized, SiS_Pr must exist */
2949 if (!sisusb->gfxinit || !sisusb->SiS_Pr)
2950 return -ENODEV;
2951
2952 retval = 0;
2953
2954 sisusb->SiS_Pr->IOAddress = SISUSB_PCI_IOPORTBASE + 0x30;
2955 sisusb->SiS_Pr->sisusb = (void *)sisusb;
2956
2957 if (SiSUSBSetVESAMode(sisusb->SiS_Pr, y->data3))
2958 retval = -EINVAL;
2959
2960 break;
2961 #endif
2962
2963 default:
2964 retval = -EINVAL;
2965 }
2966
2967 if (retval > 0)
2968 retval = -EIO;
2969
2970 return retval;
2971 }
2972
2973 static long
2974 sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2975 {
2976 struct sisusb_usb_data *sisusb;
2977 struct sisusb_info x;
2978 struct sisusb_command y;
2979 long retval = 0;
2980 u32 __user *argp = (u32 __user *)arg;
2981
2982 sisusb = file->private_data;
2983 if (!sisusb)
2984 return -ENODEV;
2985
2986 mutex_lock(&sisusb->lock);
2987
2988 /* Sanity check */
2989 if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) {
2990 retval = -ENODEV;
2991 goto err_out;
2992 }
2993
2994 switch (cmd) {
2995
2996 case SISUSB_GET_CONFIG_SIZE:
2997
2998 if (put_user(sizeof(x), argp))
2999 retval = -EFAULT;
3000
3001 break;
3002
3003 case SISUSB_GET_CONFIG:
3004
3005 x.sisusb_id = SISUSB_ID;
3006 x.sisusb_version = SISUSB_VERSION;
3007 x.sisusb_revision = SISUSB_REVISION;
3008 x.sisusb_patchlevel = SISUSB_PATCHLEVEL;
3009 x.sisusb_gfxinit = sisusb->gfxinit;
3010 x.sisusb_vrambase = SISUSB_PCI_PSEUDO_MEMBASE;
3011 x.sisusb_mmiobase = SISUSB_PCI_PSEUDO_MMIOBASE;
3012 x.sisusb_iobase = SISUSB_PCI_PSEUDO_IOPORTBASE;
3013 x.sisusb_pcibase = SISUSB_PCI_PSEUDO_PCIBASE;
3014 x.sisusb_vramsize = sisusb->vramsize;
3015 x.sisusb_minor = sisusb->minor;
3016 x.sisusb_fbdevactive= 0;
3017 #ifdef INCL_SISUSB_CON
3018 x.sisusb_conactive = sisusb->haveconsole ? 1 : 0;
3019 #else
3020 x.sisusb_conactive = 0;
3021 #endif
3022 memset(x.sisusb_reserved, 0, sizeof(x.sisusb_reserved));
3023
3024 if (copy_to_user((void __user *)arg, &x, sizeof(x)))
3025 retval = -EFAULT;
3026
3027 break;
3028
3029 case SISUSB_COMMAND:
3030
3031 if (copy_from_user(&y, (void __user *)arg, sizeof(y)))
3032 retval = -EFAULT;
3033 else
3034 retval = sisusb_handle_command(sisusb, &y, arg);
3035
3036 break;
3037
3038 default:
3039 retval = -ENOTTY;
3040 break;
3041 }
3042
3043 err_out:
3044 mutex_unlock(&sisusb->lock);
3045 return retval;
3046 }
3047
3048 #ifdef SISUSB_NEW_CONFIG_COMPAT
3049 static long
3050 sisusb_compat_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
3051 {
3052 long retval;
3053
3054 switch (cmd) {
3055 case SISUSB_GET_CONFIG_SIZE:
3056 case SISUSB_GET_CONFIG:
3057 case SISUSB_COMMAND:
3058 retval = sisusb_ioctl(f, cmd, arg);
3059 return retval;
3060
3061 default:
3062 return -ENOIOCTLCMD;
3063 }
3064 }
3065 #endif
3066
3067 static const struct file_operations usb_sisusb_fops = {
3068 .owner = THIS_MODULE,
3069 .open = sisusb_open,
3070 .release = sisusb_release,
3071 .read = sisusb_read,
3072 .write = sisusb_write,
3073 .llseek = sisusb_lseek,
3074 #ifdef SISUSB_NEW_CONFIG_COMPAT
3075 .compat_ioctl = sisusb_compat_ioctl,
3076 #endif
3077 .unlocked_ioctl = sisusb_ioctl
3078 };
3079
3080 static struct usb_class_driver usb_sisusb_class = {
3081 .name = "sisusbvga%d",
3082 .fops = &usb_sisusb_fops,
3083 .minor_base = SISUSB_MINOR
3084 };
3085
3086 static int sisusb_probe(struct usb_interface *intf,
3087 const struct usb_device_id *id)
3088 {
3089 struct usb_device *dev = interface_to_usbdev(intf);
3090 struct sisusb_usb_data *sisusb;
3091 int retval = 0, i;
3092
3093 dev_info(&dev->dev, "USB2VGA dongle found at address %d\n",
3094 dev->devnum);
3095
3096 /* Allocate memory for our private */
3097 sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL);
3098 if (!sisusb) {
3099 dev_err(&dev->dev, "Failed to allocate memory for private data\n");
3100 return -ENOMEM;
3101 }
3102 kref_init(&sisusb->kref);
3103
3104 mutex_init(&(sisusb->lock));
3105
3106 /* Register device */
3107 retval = usb_register_dev(intf, &usb_sisusb_class);
3108 if (retval) {
3109 dev_err(&sisusb->sisusb_dev->dev, "Failed to get a minor for device %d\n",
3110 dev->devnum);
3111 retval = -ENODEV;
3112 goto error_1;
3113 }
3114
3115 sisusb->sisusb_dev = dev;
3116 sisusb->minor = intf->minor;
3117 sisusb->vrambase = SISUSB_PCI_MEMBASE;
3118 sisusb->mmiobase = SISUSB_PCI_MMIOBASE;
3119 sisusb->mmiosize = SISUSB_PCI_MMIOSIZE;
3120 sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
3121 /* Everything else is zero */
3122
3123 /* Allocate buffers */
3124 sisusb->ibufsize = SISUSB_IBUF_SIZE;
3125 if (!(sisusb->ibuf = kmalloc(SISUSB_IBUF_SIZE, GFP_KERNEL))) {
3126 dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate memory for input buffer");
3127 retval = -ENOMEM;
3128 goto error_2;
3129 }
3130
3131 sisusb->numobufs = 0;
3132 sisusb->obufsize = SISUSB_OBUF_SIZE;
3133 for (i = 0; i < NUMOBUFS; i++) {
3134 if (!(sisusb->obuf[i] = kmalloc(SISUSB_OBUF_SIZE, GFP_KERNEL))) {
3135 if (i == 0) {
3136 dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate memory for output buffer\n");
3137 retval = -ENOMEM;
3138 goto error_3;
3139 }
3140 break;
3141 } else
3142 sisusb->numobufs++;
3143
3144 }
3145
3146 /* Allocate URBs */
3147 if (!(sisusb->sisurbin = usb_alloc_urb(0, GFP_KERNEL))) {
3148 dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate URBs\n");
3149 retval = -ENOMEM;
3150 goto error_3;
3151 }
3152 sisusb->completein = 1;
3153
3154 for (i = 0; i < sisusb->numobufs; i++) {
3155 if (!(sisusb->sisurbout[i] = usb_alloc_urb(0, GFP_KERNEL))) {
3156 dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate URBs\n");
3157 retval = -ENOMEM;
3158 goto error_4;
3159 }
3160 sisusb->urbout_context[i].sisusb = (void *)sisusb;
3161 sisusb->urbout_context[i].urbindex = i;
3162 sisusb->urbstatus[i] = 0;
3163 }
3164
3165 dev_info(&sisusb->sisusb_dev->dev, "Allocated %d output buffers\n", sisusb->numobufs);
3166
3167 #ifdef INCL_SISUSB_CON
3168 /* Allocate our SiS_Pr */
3169 if (!(sisusb->SiS_Pr = kmalloc(sizeof(struct SiS_Private), GFP_KERNEL))) {
3170 dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate SiS_Pr\n");
3171 }
3172 #endif
3173
3174 /* Do remaining init stuff */
3175
3176 init_waitqueue_head(&sisusb->wait_q);
3177
3178 usb_set_intfdata(intf, sisusb);
3179
3180 usb_get_dev(sisusb->sisusb_dev);
3181
3182 sisusb->present = 1;
3183
3184 if (dev->speed == USB_SPEED_HIGH || dev->speed == USB_SPEED_SUPER) {
3185 int initscreen = 1;
3186 #ifdef INCL_SISUSB_CON
3187 if (sisusb_first_vc > 0 &&
3188 sisusb_last_vc > 0 &&
3189 sisusb_first_vc <= sisusb_last_vc &&
3190 sisusb_last_vc <= MAX_NR_CONSOLES)
3191 initscreen = 0;
3192 #endif
3193 if (sisusb_init_gfxdevice(sisusb, initscreen))
3194 dev_err(&sisusb->sisusb_dev->dev, "Failed to early initialize device\n");
3195
3196 } else
3197 dev_info(&sisusb->sisusb_dev->dev, "Not attached to USB 2.0 hub, deferring init\n");
3198
3199 sisusb->ready = 1;
3200
3201 #ifdef SISUSBENDIANTEST
3202 dev_dbg(&sisusb->sisusb_dev->dev, "*** RWTEST ***\n");
3203 sisusb_testreadwrite(sisusb);
3204 dev_dbg(&sisusb->sisusb_dev->dev, "*** RWTEST END ***\n");
3205 #endif
3206
3207 #ifdef INCL_SISUSB_CON
3208 sisusb_console_init(sisusb, sisusb_first_vc, sisusb_last_vc);
3209 #endif
3210
3211 return 0;
3212
3213 error_4:
3214 sisusb_free_urbs(sisusb);
3215 error_3:
3216 sisusb_free_buffers(sisusb);
3217 error_2:
3218 usb_deregister_dev(intf, &usb_sisusb_class);
3219 error_1:
3220 kfree(sisusb);
3221 return retval;
3222 }
3223
3224 static void sisusb_disconnect(struct usb_interface *intf)
3225 {
3226 struct sisusb_usb_data *sisusb;
3227
3228 /* This should *not* happen */
3229 sisusb = usb_get_intfdata(intf);
3230 if (!sisusb)
3231 return;
3232
3233 #ifdef INCL_SISUSB_CON
3234 sisusb_console_exit(sisusb);
3235 #endif
3236
3237 usb_deregister_dev(intf, &usb_sisusb_class);
3238
3239 mutex_lock(&sisusb->lock);
3240
3241 /* Wait for all URBs to complete and kill them in case (MUST do) */
3242 if (!sisusb_wait_all_out_complete(sisusb))
3243 sisusb_kill_all_busy(sisusb);
3244
3245 usb_set_intfdata(intf, NULL);
3246
3247 sisusb->present = 0;
3248 sisusb->ready = 0;
3249
3250 mutex_unlock(&sisusb->lock);
3251
3252 /* decrement our usage count */
3253 kref_put(&sisusb->kref, sisusb_delete);
3254 }
3255
3256 static const struct usb_device_id sisusb_table[] = {
3257 { USB_DEVICE(0x0711, 0x0550) },
3258 { USB_DEVICE(0x0711, 0x0900) },
3259 { USB_DEVICE(0x0711, 0x0901) },
3260 { USB_DEVICE(0x0711, 0x0902) },
3261 { USB_DEVICE(0x0711, 0x0903) },
3262 { USB_DEVICE(0x0711, 0x0918) },
3263 { USB_DEVICE(0x0711, 0x0920) },
3264 { USB_DEVICE(0x0711, 0x0950) },
3265 { USB_DEVICE(0x0711, 0x5200) },
3266 { USB_DEVICE(0x182d, 0x021c) },
3267 { USB_DEVICE(0x182d, 0x0269) },
3268 { }
3269 };
3270
3271 MODULE_DEVICE_TABLE (usb, sisusb_table);
3272
3273 static struct usb_driver sisusb_driver = {
3274 .name = "sisusb",
3275 .probe = sisusb_probe,
3276 .disconnect = sisusb_disconnect,
3277 .id_table = sisusb_table,
3278 };
3279
3280 static int __init usb_sisusb_init(void)
3281 {
3282
3283 #ifdef INCL_SISUSB_CON
3284 sisusb_init_concode();
3285 #endif
3286
3287 return usb_register(&sisusb_driver);
3288 }
3289
3290 static void __exit usb_sisusb_exit(void)
3291 {
3292 usb_deregister(&sisusb_driver);
3293 }
3294
3295 module_init(usb_sisusb_init);
3296 module_exit(usb_sisusb_exit);
3297
3298 MODULE_AUTHOR("Thomas Winischhofer <thomas@winischhofer.net>");
3299 MODULE_DESCRIPTION("sisusbvga - Driver for Net2280/SiS315-based USB2VGA dongles");
3300 MODULE_LICENSE("GPL");
3301
Linux with added FPC-III support