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1da177e4 LT |
1 | /* |
2 | * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles | |
3 | * | |
4 | * Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria | |
5 | * | |
6 | * If distributed as part of the Linux kernel, this code is licensed under the | |
7 | * terms of the GPL v2. | |
8 | * | |
9 | * Otherwise, the following license terms apply: | |
10 | * | |
11 | * * Redistribution and use in source and binary forms, with or without | |
12 | * * modification, are permitted provided that the following conditions | |
13 | * * are met: | |
14 | * * 1) Redistributions of source code must retain the above copyright | |
15 | * * notice, this list of conditions and the following disclaimer. | |
16 | * * 2) Redistributions in binary form must reproduce the above copyright | |
17 | * * notice, this list of conditions and the following disclaimer in the | |
18 | * * documentation and/or other materials provided with the distribution. | |
19 | * * 3) The name of the author may not be used to endorse or promote products | |
20 | * * derived from this software without specific psisusbr written permission. | |
21 | * * | |
22 | * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR | |
23 | * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
24 | * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
25 | * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
27 | * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
31 | * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | * | |
33 | * Author: Thomas Winischhofer <thomas@winischhofer.net> | |
34 | * | |
35 | */ | |
36 | ||
37 | #include <linux/config.h> | |
38 | #include <linux/version.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/kernel.h> | |
41 | #include <linux/signal.h> | |
42 | #include <linux/sched.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/smp_lock.h> | |
51 | ||
52 | #include "sisusb.h" | |
53 | ||
54 | #define SISUSB_DONTSYNC | |
55 | ||
56 | /* Forward declarations / clean-up routines */ | |
57 | ||
58 | static struct usb_driver sisusb_driver; | |
59 | ||
60 | static DECLARE_MUTEX(disconnect_sem); | |
61 | ||
62 | static void | |
63 | sisusb_free_buffers(struct sisusb_usb_data *sisusb) | |
64 | { | |
65 | int i; | |
66 | ||
67 | for (i = 0; i < NUMOBUFS; i++) { | |
68 | if (sisusb->obuf[i]) { | |
69 | usb_buffer_free(sisusb->sisusb_dev, sisusb->obufsize, | |
70 | sisusb->obuf[i], sisusb->transfer_dma_out[i]); | |
71 | sisusb->obuf[i] = NULL; | |
72 | } | |
73 | } | |
74 | if (sisusb->ibuf) { | |
75 | usb_buffer_free(sisusb->sisusb_dev, sisusb->ibufsize, | |
76 | sisusb->ibuf, sisusb->transfer_dma_in); | |
77 | sisusb->ibuf = NULL; | |
78 | } | |
79 | } | |
80 | ||
81 | static void | |
82 | sisusb_free_urbs(struct sisusb_usb_data *sisusb) | |
83 | { | |
84 | int i; | |
85 | ||
86 | for (i = 0; i < NUMOBUFS; i++) { | |
87 | usb_free_urb(sisusb->sisurbout[i]); | |
88 | sisusb->sisurbout[i] = NULL; | |
89 | } | |
90 | usb_free_urb(sisusb->sisurbin); | |
91 | sisusb->sisurbin = NULL; | |
92 | } | |
93 | ||
94 | /* Level 0: USB transport layer */ | |
95 | ||
96 | /* 1. out-bulks */ | |
97 | ||
98 | /* out-urb management */ | |
99 | ||
100 | /* Return 1 if all free, 0 otherwise */ | |
101 | static int | |
102 | sisusb_all_free(struct sisusb_usb_data *sisusb) | |
103 | { | |
104 | int i; | |
105 | ||
106 | for (i = 0; i < sisusb->numobufs; i++) { | |
107 | ||
108 | if (sisusb->urbstatus[i] & SU_URB_BUSY) | |
109 | return 0; | |
110 | ||
111 | } | |
112 | ||
113 | return 1; | |
114 | } | |
115 | ||
116 | /* Kill all busy URBs */ | |
117 | static void | |
118 | sisusb_kill_all_busy(struct sisusb_usb_data *sisusb) | |
119 | { | |
120 | int i; | |
121 | ||
122 | if (sisusb_all_free(sisusb)) | |
123 | return; | |
124 | ||
125 | for (i = 0; i < sisusb->numobufs; i++) { | |
126 | ||
127 | if (sisusb->urbstatus[i] & SU_URB_BUSY) | |
128 | usb_kill_urb(sisusb->sisurbout[i]); | |
129 | ||
130 | } | |
131 | } | |
132 | ||
133 | /* Return 1 if ok, 0 if error (not all complete within timeout) */ | |
134 | static int | |
135 | sisusb_wait_all_out_complete(struct sisusb_usb_data *sisusb) | |
136 | { | |
137 | int timeout = 5 * HZ, i = 1; | |
138 | ||
139 | wait_event_timeout(sisusb->wait_q, | |
140 | (i = sisusb_all_free(sisusb)), | |
141 | timeout); | |
142 | ||
143 | return i; | |
144 | } | |
145 | ||
146 | static int | |
147 | sisusb_outurb_available(struct sisusb_usb_data *sisusb) | |
148 | { | |
149 | int i; | |
150 | ||
151 | for (i = 0; i < sisusb->numobufs; i++) { | |
152 | ||
153 | if ((sisusb->urbstatus[i] & (SU_URB_BUSY|SU_URB_ALLOC)) == 0) | |
154 | return i; | |
155 | ||
156 | } | |
157 | ||
158 | return -1; | |
159 | } | |
160 | ||
161 | static int | |
162 | sisusb_get_free_outbuf(struct sisusb_usb_data *sisusb) | |
163 | { | |
164 | int i, timeout = 5 * HZ; | |
165 | ||
166 | wait_event_timeout(sisusb->wait_q, | |
167 | ((i = sisusb_outurb_available(sisusb)) >= 0), | |
168 | timeout); | |
169 | ||
170 | return i; | |
171 | } | |
172 | ||
173 | static int | |
174 | sisusb_alloc_outbuf(struct sisusb_usb_data *sisusb) | |
175 | { | |
176 | int i; | |
177 | ||
178 | i = sisusb_outurb_available(sisusb); | |
179 | ||
180 | if (i >= 0) | |
181 | sisusb->urbstatus[i] |= SU_URB_ALLOC; | |
182 | ||
183 | return i; | |
184 | } | |
185 | ||
186 | static void | |
187 | sisusb_free_outbuf(struct sisusb_usb_data *sisusb, int index) | |
188 | { | |
189 | if ((index >= 0) && (index < sisusb->numobufs)) | |
190 | sisusb->urbstatus[index] &= ~SU_URB_ALLOC; | |
191 | } | |
192 | ||
193 | /* completion callback */ | |
194 | ||
195 | static void | |
196 | sisusb_bulk_completeout(struct urb *urb, struct pt_regs *regs) | |
197 | { | |
198 | struct sisusb_urb_context *context = urb->context; | |
199 | struct sisusb_usb_data *sisusb; | |
200 | ||
201 | if (!context) | |
202 | return; | |
203 | ||
204 | sisusb = context->sisusb; | |
205 | ||
206 | if (!sisusb || !sisusb->sisusb_dev || !sisusb->present) | |
207 | return; | |
208 | ||
209 | #ifndef SISUSB_DONTSYNC | |
210 | if (context->actual_length) | |
211 | *(context->actual_length) += urb->actual_length; | |
212 | #endif | |
213 | ||
214 | sisusb->urbstatus[context->urbindex] &= ~SU_URB_BUSY; | |
215 | wake_up(&sisusb->wait_q); | |
216 | } | |
217 | ||
218 | static int | |
219 | sisusb_bulkout_msg(struct sisusb_usb_data *sisusb, int index, unsigned int pipe, void *data, | |
220 | int len, int *actual_length, int timeout, unsigned int tflags, | |
221 | dma_addr_t transfer_dma) | |
222 | { | |
223 | struct urb *urb = sisusb->sisurbout[index]; | |
224 | int retval, byteswritten = 0; | |
225 | ||
226 | /* Set up URB */ | |
227 | urb->transfer_flags = 0; | |
228 | ||
229 | usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len, | |
230 | sisusb_bulk_completeout, &sisusb->urbout_context[index]); | |
231 | ||
232 | urb->transfer_flags |= (tflags | URB_ASYNC_UNLINK); | |
233 | urb->actual_length = 0; | |
234 | ||
235 | if ((urb->transfer_dma = transfer_dma)) | |
236 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
237 | ||
238 | /* Set up context */ | |
239 | sisusb->urbout_context[index].actual_length = (timeout) ? | |
240 | NULL : actual_length; | |
241 | ||
242 | /* Declare this urb/buffer in use */ | |
243 | sisusb->urbstatus[index] |= SU_URB_BUSY; | |
244 | ||
245 | /* Submit URB */ | |
246 | retval = usb_submit_urb(urb, GFP_ATOMIC); | |
247 | ||
248 | /* If OK, and if timeout > 0, wait for completion */ | |
249 | if ((retval == 0) && timeout) { | |
250 | wait_event_timeout(sisusb->wait_q, | |
251 | (!(sisusb->urbstatus[index] & SU_URB_BUSY)), | |
252 | timeout); | |
253 | if (sisusb->urbstatus[index] & SU_URB_BUSY) { | |
254 | /* URB timed out... kill it and report error */ | |
255 | usb_kill_urb(urb); | |
256 | retval = -ETIMEDOUT; | |
257 | } else { | |
258 | /* Otherwise, report urb status */ | |
259 | retval = urb->status; | |
260 | byteswritten = urb->actual_length; | |
261 | } | |
262 | } | |
263 | ||
264 | if (actual_length) | |
265 | *actual_length = byteswritten; | |
266 | ||
267 | return retval; | |
268 | } | |
269 | ||
270 | /* 2. in-bulks */ | |
271 | ||
272 | /* completion callback */ | |
273 | ||
274 | static void | |
275 | sisusb_bulk_completein(struct urb *urb, struct pt_regs *regs) | |
276 | { | |
277 | struct sisusb_usb_data *sisusb = urb->context; | |
278 | ||
279 | if (!sisusb || !sisusb->sisusb_dev || !sisusb->present) | |
280 | return; | |
281 | ||
282 | sisusb->completein = 1; | |
283 | wake_up(&sisusb->wait_q); | |
284 | } | |
285 | ||
286 | static int | |
287 | sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data, int len, | |
288 | int *actual_length, int timeout, unsigned int tflags, dma_addr_t transfer_dma) | |
289 | { | |
290 | struct urb *urb = sisusb->sisurbin; | |
291 | int retval, readbytes = 0; | |
292 | ||
293 | urb->transfer_flags = 0; | |
294 | ||
295 | usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len, | |
296 | sisusb_bulk_completein, sisusb); | |
297 | ||
298 | urb->transfer_flags |= (tflags | URB_ASYNC_UNLINK); | |
299 | urb->actual_length = 0; | |
300 | ||
301 | if ((urb->transfer_dma = transfer_dma)) | |
302 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
303 | ||
304 | sisusb->completein = 0; | |
305 | retval = usb_submit_urb(urb, GFP_ATOMIC); | |
306 | if (retval == 0) { | |
307 | wait_event_timeout(sisusb->wait_q, sisusb->completein, timeout); | |
308 | if (!sisusb->completein) { | |
309 | /* URB timed out... kill it and report error */ | |
310 | usb_kill_urb(urb); | |
311 | retval = -ETIMEDOUT; | |
312 | } else { | |
313 | /* URB completed within timout */ | |
314 | retval = urb->status; | |
315 | readbytes = urb->actual_length; | |
316 | } | |
317 | } | |
318 | ||
319 | if (actual_length) | |
320 | *actual_length = readbytes; | |
321 | ||
322 | return retval; | |
323 | } | |
324 | ||
325 | ||
326 | /* Level 1: */ | |
327 | ||
328 | /* Send a bulk message of variable size | |
329 | * | |
330 | * To copy the data from userspace, give pointer to "userbuffer", | |
331 | * to copy from (non-DMA) kernel memory, give "kernbuffer". If | |
332 | * both of these are NULL, it is assumed, that the transfer | |
333 | * buffer "sisusb->obuf[index]" is set up with the data to send. | |
334 | * Index is ignored if either kernbuffer or userbuffer is set. | |
335 | * If async is nonzero, URBs will be sent without waiting for | |
336 | * completion of the previous URB. | |
337 | * | |
338 | * (return 0 on success) | |
339 | */ | |
340 | ||
341 | static int sisusb_send_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, | |
342 | char *kernbuffer, const char __user *userbuffer, int index, | |
343 | ssize_t *bytes_written, unsigned int tflags, int async) | |
344 | { | |
345 | int result = 0, retry, count = len; | |
346 | int passsize, thispass, transferred_len = 0; | |
347 | int fromuser = (userbuffer != NULL) ? 1 : 0; | |
348 | int fromkern = (kernbuffer != NULL) ? 1 : 0; | |
349 | unsigned int pipe; | |
350 | char *buffer; | |
351 | ||
352 | (*bytes_written) = 0; | |
353 | ||
354 | /* Sanity check */ | |
355 | if (!sisusb || !sisusb->present || !sisusb->sisusb_dev) | |
356 | return -ENODEV; | |
357 | ||
358 | /* If we copy data from kernel or userspace, force the | |
359 | * allocation of a buffer/urb. If we have the data in | |
360 | * the transfer buffer[index] already, reuse the buffer/URB | |
361 | * if the length is > buffer size. (So, transmitting | |
362 | * large data amounts directly from the transfer buffer | |
363 | * treats the buffer as a ring buffer. However, we need | |
364 | * to sync in this case.) | |
365 | */ | |
366 | if (fromuser || fromkern) | |
367 | index = -1; | |
368 | else if (len > sisusb->obufsize) | |
369 | async = 0; | |
370 | ||
371 | pipe = usb_sndbulkpipe(sisusb->sisusb_dev, ep); | |
372 | ||
373 | do { | |
374 | passsize = thispass = (sisusb->obufsize < count) ? | |
375 | sisusb->obufsize : count; | |
376 | ||
377 | if (index < 0) | |
378 | index = sisusb_get_free_outbuf(sisusb); | |
379 | ||
380 | if (index < 0) | |
381 | return -EIO; | |
382 | ||
383 | buffer = sisusb->obuf[index]; | |
384 | ||
385 | if (fromuser) { | |
386 | ||
387 | if (copy_from_user(buffer, userbuffer, passsize)) | |
388 | return -EFAULT; | |
389 | ||
390 | userbuffer += passsize; | |
391 | ||
392 | } else if (fromkern) { | |
393 | ||
394 | memcpy(buffer, kernbuffer, passsize); | |
395 | kernbuffer += passsize; | |
396 | ||
397 | } | |
398 | ||
399 | retry = 5; | |
400 | while (thispass) { | |
401 | ||
402 | if (!sisusb->sisusb_dev) | |
403 | return -ENODEV; | |
404 | ||
405 | result = sisusb_bulkout_msg(sisusb, | |
406 | index, | |
407 | pipe, | |
408 | buffer, | |
409 | thispass, | |
410 | &transferred_len, | |
411 | async ? 0 : 5 * HZ, | |
412 | tflags, | |
413 | sisusb->transfer_dma_out[index]); | |
414 | ||
415 | if (result == -ETIMEDOUT) { | |
416 | ||
417 | /* Will not happen if async */ | |
418 | if (!retry--) | |
419 | return -ETIME; | |
420 | ||
421 | continue; | |
422 | ||
423 | } else if ((result == 0) && !async && transferred_len) { | |
424 | ||
425 | thispass -= transferred_len; | |
426 | if (thispass) { | |
427 | if (sisusb->transfer_dma_out) { | |
428 | /* If DMA, copy remaining | |
429 | * to beginning of buffer | |
430 | */ | |
431 | memcpy(buffer, | |
432 | buffer + transferred_len, | |
433 | thispass); | |
434 | } else { | |
435 | /* If not DMA, simply increase | |
436 | * the pointer | |
437 | */ | |
438 | buffer += transferred_len; | |
439 | } | |
440 | } | |
441 | ||
442 | } else | |
443 | break; | |
444 | }; | |
445 | ||
446 | if (result) | |
447 | return result; | |
448 | ||
449 | (*bytes_written) += passsize; | |
450 | count -= passsize; | |
451 | ||
452 | /* Force new allocation in next iteration */ | |
453 | if (fromuser || fromkern) | |
454 | index = -1; | |
455 | ||
456 | } while (count > 0); | |
457 | ||
458 | if (async) { | |
459 | #ifdef SISUSB_DONTSYNC | |
460 | (*bytes_written) = len; | |
461 | /* Some URBs/buffers might be busy */ | |
462 | #else | |
463 | sisusb_wait_all_out_complete(sisusb); | |
464 | (*bytes_written) = transferred_len; | |
465 | /* All URBs and all buffers are available */ | |
466 | #endif | |
467 | } | |
468 | ||
469 | return ((*bytes_written) == len) ? 0 : -EIO; | |
470 | } | |
471 | ||
472 | /* Receive a bulk message of variable size | |
473 | * | |
474 | * To copy the data to userspace, give pointer to "userbuffer", | |
475 | * to copy to kernel memory, give "kernbuffer". One of them | |
476 | * MUST be set. (There is no technique for letting the caller | |
477 | * read directly from the ibuf.) | |
478 | * | |
479 | */ | |
480 | ||
481 | static int sisusb_recv_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, | |
482 | void *kernbuffer, char __user *userbuffer, ssize_t *bytes_read, | |
483 | unsigned int tflags) | |
484 | { | |
485 | int result = 0, retry, count = len; | |
486 | int bufsize, thispass, transferred_len; | |
487 | unsigned int pipe; | |
488 | char *buffer; | |
489 | ||
490 | (*bytes_read) = 0; | |
491 | ||
492 | /* Sanity check */ | |
493 | if (!sisusb || !sisusb->present || !sisusb->sisusb_dev) | |
494 | return -ENODEV; | |
495 | ||
496 | pipe = usb_rcvbulkpipe(sisusb->sisusb_dev, ep); | |
497 | buffer = sisusb->ibuf; | |
498 | bufsize = sisusb->ibufsize; | |
499 | ||
500 | retry = 5; | |
501 | ||
502 | #ifdef SISUSB_DONTSYNC | |
503 | if (!(sisusb_wait_all_out_complete(sisusb))) | |
504 | return -EIO; | |
505 | #endif | |
506 | ||
507 | while (count > 0) { | |
508 | ||
509 | if (!sisusb->sisusb_dev) | |
510 | return -ENODEV; | |
511 | ||
512 | thispass = (bufsize < count) ? bufsize : count; | |
513 | ||
514 | result = sisusb_bulkin_msg(sisusb, | |
515 | pipe, | |
516 | buffer, | |
517 | thispass, | |
518 | &transferred_len, | |
519 | 5 * HZ, | |
520 | tflags, | |
521 | sisusb->transfer_dma_in); | |
522 | ||
523 | if (transferred_len) | |
524 | thispass = transferred_len; | |
525 | ||
526 | else if (result == -ETIMEDOUT) { | |
527 | ||
528 | if (!retry--) | |
529 | return -ETIME; | |
530 | ||
531 | continue; | |
532 | ||
533 | } else | |
534 | return -EIO; | |
535 | ||
536 | ||
537 | if (thispass) { | |
538 | ||
539 | (*bytes_read) += thispass; | |
540 | count -= thispass; | |
541 | ||
542 | if (userbuffer) { | |
543 | ||
544 | if (copy_to_user(userbuffer, buffer, thispass)) | |
545 | return -EFAULT; | |
546 | ||
547 | userbuffer += thispass; | |
548 | ||
549 | } else { | |
550 | ||
551 | memcpy(kernbuffer, buffer, thispass); | |
552 | kernbuffer += thispass; | |
553 | ||
554 | } | |
555 | ||
556 | } | |
557 | ||
558 | } | |
559 | ||
560 | return ((*bytes_read) == len) ? 0 : -EIO; | |
561 | } | |
562 | ||
563 | static int sisusb_send_packet(struct sisusb_usb_data *sisusb, int len, | |
564 | struct sisusb_packet *packet) | |
565 | { | |
566 | int ret; | |
567 | ssize_t bytes_transferred = 0; | |
568 | __le32 tmp; | |
569 | ||
570 | if (len == 6) | |
571 | packet->data = 0; | |
572 | ||
573 | #ifdef SISUSB_DONTSYNC | |
574 | if (!(sisusb_wait_all_out_complete(sisusb))) | |
575 | return 1; | |
576 | #endif | |
577 | ||
578 | /* Eventually correct endianness */ | |
579 | SISUSB_CORRECT_ENDIANNESS_PACKET(packet); | |
580 | ||
581 | /* 1. send the packet */ | |
582 | ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_GFX_OUT, len, | |
583 | (char *)packet, NULL, 0, &bytes_transferred, 0, 0); | |
584 | ||
585 | if ((ret == 0) && (len == 6)) { | |
586 | ||
587 | /* 2. if packet len == 6, it means we read, so wait for 32bit | |
588 | * return value and write it to packet->data | |
589 | */ | |
590 | ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_GFX_IN, 4, | |
591 | (char *)&tmp, NULL, &bytes_transferred, 0); | |
592 | ||
593 | packet->data = le32_to_cpu(tmp); | |
594 | } | |
595 | ||
596 | return ret; | |
597 | } | |
598 | ||
599 | static int sisusb_send_bridge_packet(struct sisusb_usb_data *sisusb, int len, | |
600 | struct sisusb_packet *packet, | |
601 | unsigned int tflags) | |
602 | { | |
603 | int ret; | |
604 | ssize_t bytes_transferred = 0; | |
605 | __le32 tmp; | |
606 | ||
607 | if (len == 6) | |
608 | packet->data = 0; | |
609 | ||
610 | #ifdef SISUSB_DONTSYNC | |
611 | if (!(sisusb_wait_all_out_complete(sisusb))) | |
612 | return 1; | |
613 | #endif | |
614 | ||
615 | /* Eventually correct endianness */ | |
616 | SISUSB_CORRECT_ENDIANNESS_PACKET(packet); | |
617 | ||
618 | /* 1. send the packet */ | |
619 | ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_BRIDGE_OUT, len, | |
620 | (char *)packet, NULL, 0, &bytes_transferred, tflags, 0); | |
621 | ||
622 | if ((ret == 0) && (len == 6)) { | |
623 | ||
624 | /* 2. if packet len == 6, it means we read, so wait for 32bit | |
625 | * return value and write it to packet->data | |
626 | */ | |
627 | ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_BRIDGE_IN, 4, | |
628 | (char *)&tmp, NULL, &bytes_transferred, 0); | |
629 | ||
630 | packet->data = le32_to_cpu(tmp); | |
631 | } | |
632 | ||
633 | return ret; | |
634 | } | |
635 | ||
636 | /* access video memory and mmio (return 0 on success) */ | |
637 | ||
638 | /* Low level */ | |
639 | ||
640 | /* The following routines assume being used to transfer byte, word, | |
641 | * long etc. | |
642 | * This means that they assume "data" in machine endianness format. | |
643 | */ | |
644 | ||
645 | static int sisusb_write_memio_byte(struct sisusb_usb_data *sisusb, int type, | |
646 | u32 addr, u8 data) | |
647 | { | |
648 | struct sisusb_packet packet; | |
649 | int ret; | |
650 | ||
651 | packet.header = (1 << (addr & 3)) | (type << 6); | |
652 | packet.address = addr & ~3; | |
653 | packet.data = data << ((addr & 3) << 3); | |
654 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
655 | return ret; | |
656 | } | |
657 | ||
658 | static int sisusb_write_memio_word(struct sisusb_usb_data *sisusb, int type, | |
659 | u32 addr, u16 data) | |
660 | { | |
661 | struct sisusb_packet packet; | |
662 | int ret = 0; | |
663 | ||
664 | packet.address = addr & ~3; | |
665 | ||
666 | switch (addr & 3) { | |
667 | case 0: | |
668 | packet.header = (type << 6) | 0x0003; | |
669 | packet.data = (u32)data; | |
670 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
671 | break; | |
672 | case 1: | |
673 | packet.header = (type << 6) | 0x0006; | |
674 | packet.data = (u32)data << 8; | |
675 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
676 | break; | |
677 | case 2: | |
678 | packet.header = (type << 6) | 0x000c; | |
679 | packet.data = (u32)data << 16; | |
680 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
681 | break; | |
682 | case 3: | |
683 | packet.header = (type << 6) | 0x0008; | |
684 | packet.data = (u32)data << 24; | |
685 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
686 | packet.header = (type << 6) | 0x0001; | |
687 | packet.address = (addr & ~3) + 4; | |
688 | packet.data = (u32)data >> 8; | |
689 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
690 | } | |
691 | ||
692 | return ret; | |
693 | } | |
694 | ||
695 | static int sisusb_write_memio_24bit(struct sisusb_usb_data *sisusb, int type, | |
696 | u32 addr, u32 data) | |
697 | { | |
698 | struct sisusb_packet packet; | |
699 | int ret = 0; | |
700 | ||
701 | packet.address = addr & ~3; | |
702 | ||
703 | switch (addr & 3) { | |
704 | case 0: | |
705 | packet.header = (type << 6) | 0x0007; | |
706 | packet.data = data & 0x00ffffff; | |
707 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
708 | break; | |
709 | case 1: | |
710 | packet.header = (type << 6) | 0x000e; | |
711 | packet.data = data << 8; | |
712 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
713 | break; | |
714 | case 2: | |
715 | packet.header = (type << 6) | 0x000c; | |
716 | packet.data = data << 16; | |
717 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
718 | packet.header = (type << 6) | 0x0001; | |
719 | packet.address = (addr & ~3) + 4; | |
720 | packet.data = (data >> 16) & 0x00ff; | |
721 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
722 | break; | |
723 | case 3: | |
724 | packet.header = (type << 6) | 0x0008; | |
725 | packet.data = data << 24; | |
726 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
727 | packet.header = (type << 6) | 0x0003; | |
728 | packet.address = (addr & ~3) + 4; | |
729 | packet.data = (data >> 8) & 0xffff; | |
730 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
731 | } | |
732 | ||
733 | return ret; | |
734 | } | |
735 | ||
736 | static int sisusb_write_memio_long(struct sisusb_usb_data *sisusb, int type, | |
737 | u32 addr, u32 data) | |
738 | { | |
739 | struct sisusb_packet packet; | |
740 | int ret = 0; | |
741 | ||
742 | packet.address = addr & ~3; | |
743 | ||
744 | switch (addr & 3) { | |
745 | case 0: | |
746 | packet.header = (type << 6) | 0x000f; | |
747 | packet.data = data; | |
748 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
749 | break; | |
750 | case 1: | |
751 | packet.header = (type << 6) | 0x000e; | |
752 | packet.data = data << 8; | |
753 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
754 | packet.header = (type << 6) | 0x0001; | |
755 | packet.address = (addr & ~3) + 4; | |
756 | packet.data = data >> 24; | |
757 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
758 | break; | |
759 | case 2: | |
760 | packet.header = (type << 6) | 0x000c; | |
761 | packet.data = data << 16; | |
762 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
763 | packet.header = (type << 6) | 0x0003; | |
764 | packet.address = (addr & ~3) + 4; | |
765 | packet.data = data >> 16; | |
766 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
767 | break; | |
768 | case 3: | |
769 | packet.header = (type << 6) | 0x0008; | |
770 | packet.data = data << 24; | |
771 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
772 | packet.header = (type << 6) | 0x0007; | |
773 | packet.address = (addr & ~3) + 4; | |
774 | packet.data = data >> 8; | |
775 | ret |= sisusb_send_packet(sisusb, 10, &packet); | |
776 | } | |
777 | ||
778 | return ret; | |
779 | } | |
780 | ||
781 | /* The xxx_bulk routines copy a buffer of variable size. They treat the | |
782 | * buffer as chars, therefore lsb/msb has to be corrected if using the | |
783 | * byte/word/long/etc routines for speed-up | |
784 | * | |
785 | * If data is from userland, set "userbuffer" (and clear "kernbuffer"), | |
786 | * if data is in kernel space, set "kernbuffer" (and clear "userbuffer"); | |
787 | * if neither "kernbuffer" nor "userbuffer" are given, it is assumed | |
788 | * that the data already is in the transfer buffer "sisusb->obuf[index]". | |
789 | */ | |
790 | ||
791 | static int sisusb_write_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr, | |
792 | char *kernbuffer, int length, | |
793 | const char __user *userbuffer, int index, | |
794 | ssize_t *bytes_written) | |
795 | { | |
796 | struct sisusb_packet packet; | |
797 | int ret = 0; | |
798 | static int msgcount = 0; | |
799 | u8 swap8, fromkern = kernbuffer ? 1 : 0; | |
800 | u16 swap16; | |
801 | u32 swap32, flag = (length >> 28) & 1; | |
802 | char buf[4]; | |
803 | ||
804 | /* if neither kernbuffer not userbuffer are given, assume | |
805 | * data in obuf | |
806 | */ | |
807 | if (!fromkern && !userbuffer) | |
808 | kernbuffer = sisusb->obuf[index]; | |
809 | ||
810 | (*bytes_written = 0); | |
811 | ||
812 | length &= 0x00ffffff; | |
813 | ||
814 | while (length) { | |
815 | ||
816 | switch (length) { | |
817 | ||
818 | case 0: | |
819 | return ret; | |
820 | ||
821 | case 1: | |
822 | if (userbuffer) { | |
823 | if (get_user(swap8, (u8 __user *)userbuffer)) | |
824 | return -EFAULT; | |
825 | } else | |
826 | swap8 = kernbuffer[0]; | |
827 | ||
828 | ret = sisusb_write_memio_byte(sisusb, | |
829 | SISUSB_TYPE_MEM, | |
830 | addr, swap8); | |
831 | ||
832 | if (!ret) | |
833 | (*bytes_written)++; | |
834 | ||
835 | return ret; | |
836 | ||
837 | case 2: | |
838 | if (userbuffer) { | |
839 | if (get_user(swap16, (u16 __user *)userbuffer)) | |
840 | return -EFAULT; | |
841 | } else | |
842 | swap16 = (kernbuffer[0] << 8) | kernbuffer[1]; | |
843 | ||
844 | ret = sisusb_write_memio_word(sisusb, | |
845 | SISUSB_TYPE_MEM, | |
846 | addr, | |
847 | swap16); | |
848 | ||
849 | if (!ret) | |
850 | (*bytes_written) += 2; | |
851 | ||
852 | return ret; | |
853 | ||
854 | case 3: | |
855 | if (userbuffer) { | |
856 | if (copy_from_user(&buf, userbuffer, 3)) | |
857 | return -EFAULT; | |
858 | ||
859 | swap32 = (buf[0] << 16) | | |
860 | (buf[1] << 8) | | |
861 | buf[2]; | |
862 | } else | |
863 | swap32 = (kernbuffer[0] << 16) | | |
864 | (kernbuffer[1] << 8) | | |
865 | kernbuffer[2]; | |
866 | ||
867 | ret = sisusb_write_memio_24bit(sisusb, | |
868 | SISUSB_TYPE_MEM, | |
869 | addr, | |
870 | swap32); | |
871 | ||
872 | if (!ret) | |
873 | (*bytes_written) += 3; | |
874 | ||
875 | return ret; | |
876 | ||
877 | case 4: | |
878 | if (userbuffer) { | |
879 | if (get_user(swap32, (u32 __user *)userbuffer)) | |
880 | return -EFAULT; | |
881 | } else | |
882 | swap32 = (kernbuffer[0] << 24) | | |
883 | (kernbuffer[1] << 16) | | |
884 | (kernbuffer[2] << 8) | | |
885 | kernbuffer[3]; | |
886 | ||
887 | ret = sisusb_write_memio_long(sisusb, | |
888 | SISUSB_TYPE_MEM, | |
889 | addr, | |
890 | swap32); | |
891 | if (!ret) | |
892 | (*bytes_written) += 4; | |
893 | ||
894 | return ret; | |
895 | ||
896 | default: | |
897 | if ((length & ~3) > 0x10000) { | |
898 | ||
899 | packet.header = 0x001f; | |
900 | packet.address = 0x000001d4; | |
901 | packet.data = addr; | |
902 | ret = sisusb_send_bridge_packet(sisusb, 10, | |
903 | &packet, 0); | |
904 | packet.header = 0x001f; | |
905 | packet.address = 0x000001d0; | |
906 | packet.data = (length & ~3); | |
907 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
908 | &packet, 0); | |
909 | packet.header = 0x001f; | |
910 | packet.address = 0x000001c0; | |
911 | packet.data = flag | 0x16; | |
912 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
913 | &packet, 0); | |
914 | if (userbuffer) { | |
915 | ret |= sisusb_send_bulk_msg(sisusb, | |
916 | SISUSB_EP_GFX_LBULK_OUT, | |
917 | (length & ~3), | |
918 | NULL, userbuffer, 0, | |
919 | bytes_written, 0, 1); | |
920 | userbuffer += (*bytes_written); | |
921 | } else if (fromkern) { | |
922 | ret |= sisusb_send_bulk_msg(sisusb, | |
923 | SISUSB_EP_GFX_LBULK_OUT, | |
924 | (length & ~3), | |
925 | kernbuffer, NULL, 0, | |
926 | bytes_written, 0, 1); | |
927 | kernbuffer += (*bytes_written); | |
928 | } else { | |
929 | ret |= sisusb_send_bulk_msg(sisusb, | |
930 | SISUSB_EP_GFX_LBULK_OUT, | |
931 | (length & ~3), | |
932 | NULL, NULL, index, | |
933 | bytes_written, 0, 1); | |
934 | kernbuffer += ((*bytes_written) & | |
935 | (sisusb->obufsize-1)); | |
936 | } | |
937 | ||
938 | } else { | |
939 | ||
940 | packet.header = 0x001f; | |
941 | packet.address = 0x00000194; | |
942 | packet.data = addr; | |
943 | ret = sisusb_send_bridge_packet(sisusb, 10, | |
944 | &packet, 0); | |
945 | packet.header = 0x001f; | |
946 | packet.address = 0x00000190; | |
947 | packet.data = (length & ~3); | |
948 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
949 | &packet, 0); | |
950 | if (sisusb->flagb0 != 0x16) { | |
951 | packet.header = 0x001f; | |
952 | packet.address = 0x00000180; | |
953 | packet.data = flag | 0x16; | |
954 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
955 | &packet, 0); | |
956 | sisusb->flagb0 = 0x16; | |
957 | } | |
958 | if (userbuffer) { | |
959 | ret |= sisusb_send_bulk_msg(sisusb, | |
960 | SISUSB_EP_GFX_BULK_OUT, | |
961 | (length & ~3), | |
962 | NULL, userbuffer, 0, | |
963 | bytes_written, 0, 1); | |
964 | userbuffer += (*bytes_written); | |
965 | } else if (fromkern) { | |
966 | ret |= sisusb_send_bulk_msg(sisusb, | |
967 | SISUSB_EP_GFX_BULK_OUT, | |
968 | (length & ~3), | |
969 | kernbuffer, NULL, 0, | |
970 | bytes_written, 0, 1); | |
971 | kernbuffer += (*bytes_written); | |
972 | } else { | |
973 | ret |= sisusb_send_bulk_msg(sisusb, | |
974 | SISUSB_EP_GFX_BULK_OUT, | |
975 | (length & ~3), | |
976 | NULL, NULL, index, | |
977 | bytes_written, 0, 1); | |
978 | kernbuffer += ((*bytes_written) & | |
979 | (sisusb->obufsize-1)); | |
980 | } | |
981 | } | |
982 | if (ret) { | |
983 | msgcount++; | |
984 | if (msgcount < 500) | |
985 | printk(KERN_ERR | |
986 | "sisusbvga[%d]: Wrote %Zd of " | |
987 | "%d bytes, error %d\n", | |
988 | sisusb->minor, *bytes_written, | |
989 | length, ret); | |
990 | else if (msgcount == 500) | |
991 | printk(KERN_ERR | |
992 | "sisusbvga[%d]: Too many errors" | |
993 | ", logging stopped\n", | |
994 | sisusb->minor); | |
995 | } | |
996 | addr += (*bytes_written); | |
997 | length -= (*bytes_written); | |
998 | } | |
999 | ||
1000 | if (ret) | |
1001 | break; | |
1002 | ||
1003 | } | |
1004 | ||
1005 | return ret ? -EIO : 0; | |
1006 | } | |
1007 | ||
1008 | static int sisusb_read_memio_byte(struct sisusb_usb_data *sisusb, int type, | |
1009 | u32 addr, u8 *data) | |
1010 | { | |
1011 | struct sisusb_packet packet; | |
1012 | int ret; | |
1013 | ||
1014 | CLEARPACKET(&packet); | |
1015 | packet.header = (1 << (addr & 3)) | (type << 6); | |
1016 | packet.address = addr & ~3; | |
1017 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1018 | *data = (u8)(packet.data >> ((addr & 3) << 3)); | |
1019 | return ret; | |
1020 | } | |
1021 | ||
1022 | static int sisusb_read_memio_word(struct sisusb_usb_data *sisusb, int type, | |
1023 | u32 addr, u16 *data) | |
1024 | { | |
1025 | struct sisusb_packet packet; | |
1026 | int ret = 0; | |
1027 | ||
1028 | CLEARPACKET(&packet); | |
1029 | ||
1030 | packet.address = addr & ~3; | |
1031 | ||
1032 | switch (addr & 3) { | |
1033 | case 0: | |
1034 | packet.header = (type << 6) | 0x0003; | |
1035 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1036 | *data = (u16)(packet.data); | |
1037 | break; | |
1038 | case 1: | |
1039 | packet.header = (type << 6) | 0x0006; | |
1040 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1041 | *data = (u16)(packet.data >> 8); | |
1042 | break; | |
1043 | case 2: | |
1044 | packet.header = (type << 6) | 0x000c; | |
1045 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1046 | *data = (u16)(packet.data >> 16); | |
1047 | break; | |
1048 | case 3: | |
1049 | packet.header = (type << 6) | 0x0008; | |
1050 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1051 | *data = (u16)(packet.data >> 24); | |
1052 | packet.header = (type << 6) | 0x0001; | |
1053 | packet.address = (addr & ~3) + 4; | |
1054 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1055 | *data |= (u16)(packet.data << 8); | |
1056 | } | |
1057 | ||
1058 | return ret; | |
1059 | } | |
1060 | ||
1061 | static int sisusb_read_memio_24bit(struct sisusb_usb_data *sisusb, int type, | |
1062 | u32 addr, u32 *data) | |
1063 | { | |
1064 | struct sisusb_packet packet; | |
1065 | int ret = 0; | |
1066 | ||
1067 | packet.address = addr & ~3; | |
1068 | ||
1069 | switch (addr & 3) { | |
1070 | case 0: | |
1071 | packet.header = (type << 6) | 0x0007; | |
1072 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1073 | *data = packet.data & 0x00ffffff; | |
1074 | break; | |
1075 | case 1: | |
1076 | packet.header = (type << 6) | 0x000e; | |
1077 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1078 | *data = packet.data >> 8; | |
1079 | break; | |
1080 | case 2: | |
1081 | packet.header = (type << 6) | 0x000c; | |
1082 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1083 | *data = packet.data >> 16; | |
1084 | packet.header = (type << 6) | 0x0001; | |
1085 | packet.address = (addr & ~3) + 4; | |
1086 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1087 | *data |= ((packet.data & 0xff) << 16); | |
1088 | break; | |
1089 | case 3: | |
1090 | packet.header = (type << 6) | 0x0008; | |
1091 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1092 | *data = packet.data >> 24; | |
1093 | packet.header = (type << 6) | 0x0003; | |
1094 | packet.address = (addr & ~3) + 4; | |
1095 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1096 | *data |= ((packet.data & 0xffff) << 8); | |
1097 | } | |
1098 | ||
1099 | return ret; | |
1100 | } | |
1101 | ||
1102 | static int sisusb_read_memio_long(struct sisusb_usb_data *sisusb, int type, | |
1103 | u32 addr, u32 *data) | |
1104 | { | |
1105 | struct sisusb_packet packet; | |
1106 | int ret = 0; | |
1107 | ||
1108 | packet.address = addr & ~3; | |
1109 | ||
1110 | switch (addr & 3) { | |
1111 | case 0: | |
1112 | packet.header = (type << 6) | 0x000f; | |
1113 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1114 | *data = packet.data; | |
1115 | break; | |
1116 | case 1: | |
1117 | packet.header = (type << 6) | 0x000e; | |
1118 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1119 | *data = packet.data >> 8; | |
1120 | packet.header = (type << 6) | 0x0001; | |
1121 | packet.address = (addr & ~3) + 4; | |
1122 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1123 | *data |= (packet.data << 24); | |
1124 | break; | |
1125 | case 2: | |
1126 | packet.header = (type << 6) | 0x000c; | |
1127 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1128 | *data = packet.data >> 16; | |
1129 | packet.header = (type << 6) | 0x0003; | |
1130 | packet.address = (addr & ~3) + 4; | |
1131 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1132 | *data |= (packet.data << 16); | |
1133 | break; | |
1134 | case 3: | |
1135 | packet.header = (type << 6) | 0x0008; | |
1136 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1137 | *data = packet.data >> 24; | |
1138 | packet.header = (type << 6) | 0x0007; | |
1139 | packet.address = (addr & ~3) + 4; | |
1140 | ret |= sisusb_send_packet(sisusb, 6, &packet); | |
1141 | *data |= (packet.data << 8); | |
1142 | } | |
1143 | ||
1144 | return ret; | |
1145 | } | |
1146 | ||
1147 | static int sisusb_read_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr, | |
1148 | char *kernbuffer, int length, | |
1149 | char __user *userbuffer, ssize_t *bytes_read) | |
1150 | { | |
1151 | int ret = 0; | |
1152 | char buf[4]; | |
1153 | u16 swap16; | |
1154 | u32 swap32; | |
1155 | ||
1156 | (*bytes_read = 0); | |
1157 | ||
1158 | length &= 0x00ffffff; | |
1159 | ||
1160 | while (length) { | |
1161 | ||
1162 | switch (length) { | |
1163 | ||
1164 | case 0: | |
1165 | return ret; | |
1166 | ||
1167 | case 1: | |
1168 | ||
1169 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, | |
1170 | addr, &buf[0]); | |
1171 | if (!ret) { | |
1172 | (*bytes_read)++; | |
1173 | if (userbuffer) { | |
1174 | if (put_user(buf[0], | |
1175 | (u8 __user *)userbuffer)) { | |
1176 | return -EFAULT; | |
1177 | } | |
1178 | } else { | |
1179 | kernbuffer[0] = buf[0]; | |
1180 | } | |
1181 | } | |
1182 | return ret; | |
1183 | ||
1184 | case 2: | |
1185 | ret |= sisusb_read_memio_word(sisusb, SISUSB_TYPE_MEM, | |
1186 | addr, &swap16); | |
1187 | if (!ret) { | |
1188 | (*bytes_read) += 2; | |
1189 | if (userbuffer) { | |
1190 | if (put_user(swap16, | |
1191 | (u16 __user *)userbuffer)) | |
1192 | return -EFAULT; | |
1193 | } else { | |
1194 | kernbuffer[0] = swap16 >> 8; | |
1195 | kernbuffer[1] = swap16 & 0xff; | |
1196 | } | |
1197 | } | |
1198 | return ret; | |
1199 | ||
1200 | case 3: | |
1201 | ret |= sisusb_read_memio_24bit(sisusb, SISUSB_TYPE_MEM, | |
1202 | addr, &swap32); | |
1203 | if (!ret) { | |
1204 | (*bytes_read) += 3; | |
1205 | buf[0] = (swap32 >> 16) & 0xff; | |
1206 | buf[1] = (swap32 >> 8) & 0xff; | |
1207 | buf[2] = swap32 & 0xff; | |
1208 | if (userbuffer) { | |
1209 | if (copy_to_user(userbuffer, &buf[0], 3)) | |
1210 | return -EFAULT; | |
1211 | } else { | |
1212 | kernbuffer[0] = buf[0]; | |
1213 | kernbuffer[1] = buf[1]; | |
1214 | kernbuffer[2] = buf[2]; | |
1215 | } | |
1216 | } | |
1217 | return ret; | |
1218 | ||
1219 | default: | |
1220 | ret |= sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM, | |
1221 | addr, &swap32); | |
1222 | if (!ret) { | |
1223 | (*bytes_read) += 4; | |
1224 | if (userbuffer) { | |
1225 | if (put_user(swap32, | |
1226 | (u32 __user *)userbuffer)) | |
1227 | return -EFAULT; | |
1228 | ||
1229 | userbuffer += 4; | |
1230 | } else { | |
1231 | kernbuffer[0] = (swap32 >> 24) & 0xff; | |
1232 | kernbuffer[1] = (swap32 >> 16) & 0xff; | |
1233 | kernbuffer[2] = (swap32 >> 8) & 0xff; | |
1234 | kernbuffer[3] = swap32 & 0xff; | |
1235 | kernbuffer += 4; | |
1236 | } | |
1237 | addr += 4; | |
1238 | length -= 4; | |
1239 | } | |
1240 | #if 0 /* That does not work, as EP 2 is an OUT EP! */ | |
1241 | default: | |
1242 | CLEARPACKET(&packet); | |
1243 | packet.header = 0x001f; | |
1244 | packet.address = 0x000001a0; | |
1245 | packet.data = 0x00000006; | |
1246 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
1247 | &packet, 0); | |
1248 | packet.header = 0x001f; | |
1249 | packet.address = 0x000001b0; | |
1250 | packet.data = (length & ~3) | 0x40000000; | |
1251 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
1252 | &packet, 0); | |
1253 | packet.header = 0x001f; | |
1254 | packet.address = 0x000001b4; | |
1255 | packet.data = addr; | |
1256 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
1257 | &packet, 0); | |
1258 | packet.header = 0x001f; | |
1259 | packet.address = 0x000001a4; | |
1260 | packet.data = 0x00000001; | |
1261 | ret |= sisusb_send_bridge_packet(sisusb, 10, | |
1262 | &packet, 0); | |
1263 | if (userbuffer) { | |
1264 | ret |= sisusb_recv_bulk_msg(sisusb, | |
1265 | SISUSB_EP_GFX_BULK_IN, | |
1266 | (length & ~3), | |
1267 | NULL, userbuffer, | |
1268 | bytes_read, 0); | |
1269 | if (!ret) userbuffer += (*bytes_read); | |
1270 | } else { | |
1271 | ret |= sisusb_recv_bulk_msg(sisusb, | |
1272 | SISUSB_EP_GFX_BULK_IN, | |
1273 | (length & ~3), | |
1274 | kernbuffer, NULL, | |
1275 | bytes_read, 0); | |
1276 | if (!ret) kernbuffer += (*bytes_read); | |
1277 | } | |
1278 | addr += (*bytes_read); | |
1279 | length -= (*bytes_read); | |
1280 | #endif | |
1281 | } | |
1282 | ||
1283 | if (ret) | |
1284 | break; | |
1285 | } | |
1286 | ||
1287 | return ret; | |
1288 | } | |
1289 | ||
1290 | /* High level: Gfx (indexed) register access */ | |
1291 | ||
1292 | static int | |
1293 | sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 data) | |
1294 | { | |
1295 | int ret; | |
1296 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index); | |
1297 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data); | |
1298 | return ret; | |
1299 | } | |
1300 | ||
1301 | static int | |
1302 | sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 *data) | |
1303 | { | |
1304 | int ret; | |
1305 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index); | |
1306 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data); | |
1307 | return ret; | |
1308 | } | |
1309 | ||
1310 | static int | |
1311 | sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port, u8 idx, | |
1312 | u8 myand, u8 myor) | |
1313 | { | |
1314 | int ret; | |
1315 | u8 tmp; | |
1316 | ||
1317 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx); | |
1318 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp); | |
1319 | tmp &= myand; | |
1320 | tmp |= myor; | |
1321 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp); | |
1322 | return ret; | |
1323 | } | |
1324 | ||
1325 | static int | |
1326 | sisusb_setidxregmask(struct sisusb_usb_data *sisusb, int port, u8 idx, | |
1327 | u8 data, u8 mask) | |
1328 | { | |
1329 | int ret; | |
1330 | u8 tmp; | |
1331 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx); | |
1332 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp); | |
1333 | tmp &= ~(mask); | |
1334 | tmp |= (data & mask); | |
1335 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp); | |
1336 | return ret; | |
1337 | } | |
1338 | ||
1339 | static int | |
1340 | sisusb_setidxregor(struct sisusb_usb_data *sisusb, int port, u8 index, u8 myor) | |
1341 | { | |
1342 | return(sisusb_setidxregandor(sisusb, port, index, 0xff, myor)); | |
1343 | } | |
1344 | ||
1345 | static int | |
1346 | sisusb_setidxregand(struct sisusb_usb_data *sisusb, int port, u8 idx, u8 myand) | |
1347 | { | |
1348 | return(sisusb_setidxregandor(sisusb, port, idx, myand, 0x00)); | |
1349 | } | |
1350 | ||
1351 | /* access pci config registers (reg numbers 0, 4, 8, etc) */ | |
1352 | ||
1353 | static int | |
1354 | sisusb_write_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 data) | |
1355 | { | |
1356 | struct sisusb_packet packet; | |
1357 | int ret; | |
1358 | ||
1359 | packet.header = 0x008f; | |
1360 | packet.address = regnum | 0x10000; | |
1361 | packet.data = data; | |
1362 | ret = sisusb_send_packet(sisusb, 10, &packet); | |
1363 | return ret; | |
1364 | } | |
1365 | ||
1366 | static int | |
1367 | sisusb_read_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 *data) | |
1368 | { | |
1369 | struct sisusb_packet packet; | |
1370 | int ret; | |
1371 | ||
1372 | packet.header = 0x008f; | |
1373 | packet.address = (u32)regnum | 0x10000; | |
1374 | ret = sisusb_send_packet(sisusb, 6, &packet); | |
1375 | *data = packet.data; | |
1376 | return ret; | |
1377 | } | |
1378 | ||
1379 | /* Clear video RAM */ | |
1380 | ||
1381 | static int | |
1382 | sisusb_clear_vram(struct sisusb_usb_data *sisusb, u32 address, int length) | |
1383 | { | |
1384 | int ret, i; | |
1385 | ssize_t j; | |
1386 | ||
1387 | if (address < sisusb->vrambase) | |
1388 | return 1; | |
1389 | ||
1390 | if (address >= sisusb->vrambase + sisusb->vramsize) | |
1391 | return 1; | |
1392 | ||
1393 | if (address + length > sisusb->vrambase + sisusb->vramsize) | |
1394 | length = sisusb->vrambase + sisusb->vramsize - address; | |
1395 | ||
1396 | if (length <= 0) | |
1397 | return 0; | |
1398 | ||
1399 | /* allocate free buffer/urb and clear the buffer */ | |
1400 | if ((i = sisusb_alloc_outbuf(sisusb)) < 0) | |
1401 | return -EBUSY; | |
1402 | ||
1403 | memset(sisusb->obuf[i], 0, sisusb->obufsize); | |
1404 | ||
1405 | /* We can write a length > buffer size here. The buffer | |
1406 | * data will simply be re-used (like a ring-buffer). | |
1407 | */ | |
1408 | ret = sisusb_write_mem_bulk(sisusb, address, NULL, length, NULL, i, &j); | |
1409 | ||
1410 | /* Free the buffer/urb */ | |
1411 | sisusb_free_outbuf(sisusb, i); | |
1412 | ||
1413 | return ret; | |
1414 | } | |
1415 | ||
1416 | /* Initialize the graphics core (return 0 on success) | |
1417 | * This resets the graphics hardware and puts it into | |
1418 | * a defined mode (640x480@60Hz) | |
1419 | */ | |
1420 | ||
1421 | #define GETREG(r,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, r, d) | |
1422 | #define SETREG(r,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, r, d) | |
1423 | #define SETIREG(r,i,d) sisusb_setidxreg(sisusb, r, i, d) | |
1424 | #define GETIREG(r,i,d) sisusb_getidxreg(sisusb, r, i, d) | |
1425 | #define SETIREGOR(r,i,o) sisusb_setidxregor(sisusb, r, i, o) | |
1426 | #define SETIREGAND(r,i,a) sisusb_setidxregand(sisusb, r, i, a) | |
1427 | #define SETIREGANDOR(r,i,a,o) sisusb_setidxregandor(sisusb, r, i, a, o) | |
1428 | #define READL(a,d) sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM, a, d) | |
1429 | #define WRITEL(a,d) sisusb_write_memio_long(sisusb, SISUSB_TYPE_MEM, a, d) | |
1430 | #define READB(a,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d) | |
1431 | #define WRITEB(a,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d) | |
1432 | ||
1433 | static int | |
1434 | sisusb_triggersr16(struct sisusb_usb_data *sisusb, u8 ramtype) | |
1435 | { | |
1436 | int ret; | |
1437 | u8 tmp8; | |
1438 | ||
1439 | ret = GETIREG(SISSR, 0x16, &tmp8); | |
1440 | if (ramtype <= 1) { | |
1441 | tmp8 &= 0x3f; | |
1442 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1443 | tmp8 |= 0x80; | |
1444 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1445 | } else { | |
1446 | tmp8 |= 0xc0; | |
1447 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1448 | tmp8 &= 0x0f; | |
1449 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1450 | tmp8 |= 0x80; | |
1451 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1452 | tmp8 &= 0x0f; | |
1453 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1454 | tmp8 |= 0xd0; | |
1455 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1456 | tmp8 &= 0x0f; | |
1457 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1458 | tmp8 |= 0xa0; | |
1459 | ret |= SETIREG(SISSR, 0x16, tmp8); | |
1460 | } | |
1461 | return ret; | |
1462 | } | |
1463 | ||
1464 | static int | |
1465 | sisusb_getbuswidth(struct sisusb_usb_data *sisusb, int *bw, int *chab) | |
1466 | { | |
1467 | int ret; | |
1468 | u8 ramtype, done = 0; | |
1469 | u32 t0, t1, t2, t3; | |
1470 | u32 ramptr = SISUSB_PCI_MEMBASE; | |
1471 | ||
1472 | ret = GETIREG(SISSR, 0x3a, &ramtype); | |
1473 | ramtype &= 3; | |
1474 | ||
1475 | ret |= SETIREG(SISSR, 0x13, 0x00); | |
1476 | ||
1477 | if (ramtype <= 1) { | |
1478 | ret |= SETIREG(SISSR, 0x14, 0x12); | |
1479 | ret |= SETIREGAND(SISSR, 0x15, 0xef); | |
1480 | } else { | |
1481 | ret |= SETIREG(SISSR, 0x14, 0x02); | |
1482 | } | |
1483 | ||
1484 | ret |= sisusb_triggersr16(sisusb, ramtype); | |
1485 | ret |= WRITEL(ramptr + 0, 0x01234567); | |
1486 | ret |= WRITEL(ramptr + 4, 0x456789ab); | |
1487 | ret |= WRITEL(ramptr + 8, 0x89abcdef); | |
1488 | ret |= WRITEL(ramptr + 12, 0xcdef0123); | |
1489 | ret |= WRITEL(ramptr + 16, 0x55555555); | |
1490 | ret |= WRITEL(ramptr + 20, 0x55555555); | |
1491 | ret |= WRITEL(ramptr + 24, 0xffffffff); | |
1492 | ret |= WRITEL(ramptr + 28, 0xffffffff); | |
1493 | ret |= READL(ramptr + 0, &t0); | |
1494 | ret |= READL(ramptr + 4, &t1); | |
1495 | ret |= READL(ramptr + 8, &t2); | |
1496 | ret |= READL(ramptr + 12, &t3); | |
1497 | ||
1498 | if (ramtype <= 1) { | |
1499 | ||
1500 | *chab = 0; *bw = 64; | |
1501 | ||
1502 | if ((t3 != 0xcdef0123) || (t2 != 0x89abcdef)) { | |
1503 | if ((t1 == 0x456789ab) && (t0 == 0x01234567)) { | |
1504 | *chab = 0; *bw = 64; | |
1505 | ret |= SETIREGAND(SISSR, 0x14, 0xfd); | |
1506 | } | |
1507 | } | |
1508 | if ((t1 != 0x456789ab) || (t0 != 0x01234567)) { | |
1509 | *chab = 1; *bw = 64; | |
1510 | ret |= SETIREGANDOR(SISSR, 0x14, 0xfc,0x01); | |
1511 | ||
1512 | ret |= sisusb_triggersr16(sisusb, ramtype); | |
1513 | ret |= WRITEL(ramptr + 0, 0x89abcdef); | |
1514 | ret |= WRITEL(ramptr + 4, 0xcdef0123); | |
1515 | ret |= WRITEL(ramptr + 8, 0x55555555); | |
1516 | ret |= WRITEL(ramptr + 12, 0x55555555); | |
1517 | ret |= WRITEL(ramptr + 16, 0xaaaaaaaa); | |
1518 | ret |= WRITEL(ramptr + 20, 0xaaaaaaaa); | |
1519 | ret |= READL(ramptr + 4, &t1); | |
1520 | ||
1521 | if (t1 != 0xcdef0123) { | |
1522 | *bw = 32; | |
1523 | ret |= SETIREGOR(SISSR, 0x15, 0x10); | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | } else { | |
1528 | ||
1529 | *chab = 0; *bw = 64; /* default: cha, bw = 64 */ | |
1530 | ||
1531 | done = 0; | |
1532 | ||
1533 | if (t1 == 0x456789ab) { | |
1534 | if (t0 == 0x01234567) { | |
1535 | *chab = 0; *bw = 64; | |
1536 | done = 1; | |
1537 | } | |
1538 | } else { | |
1539 | if (t0 == 0x01234567) { | |
1540 | *chab = 0; *bw = 32; | |
1541 | ret |= SETIREG(SISSR, 0x14, 0x00); | |
1542 | done = 1; | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | if (!done) { | |
1547 | ret |= SETIREG(SISSR, 0x14, 0x03); | |
1548 | ret |= sisusb_triggersr16(sisusb, ramtype); | |
1549 | ||
1550 | ret |= WRITEL(ramptr + 0, 0x01234567); | |
1551 | ret |= WRITEL(ramptr + 4, 0x456789ab); | |
1552 | ret |= WRITEL(ramptr + 8, 0x89abcdef); | |
1553 | ret |= WRITEL(ramptr + 12, 0xcdef0123); | |
1554 | ret |= WRITEL(ramptr + 16, 0x55555555); | |
1555 | ret |= WRITEL(ramptr + 20, 0x55555555); | |
1556 | ret |= WRITEL(ramptr + 24, 0xffffffff); | |
1557 | ret |= WRITEL(ramptr + 28, 0xffffffff); | |
1558 | ret |= READL(ramptr + 0, &t0); | |
1559 | ret |= READL(ramptr + 4, &t1); | |
1560 | ||
1561 | if (t1 == 0x456789ab) { | |
1562 | if (t0 == 0x01234567) { | |
1563 | *chab = 1; *bw = 64; | |
1564 | return ret; | |
1565 | } /* else error */ | |
1566 | } else { | |
1567 | if (t0 == 0x01234567) { | |
1568 | *chab = 1; *bw = 32; | |
1569 | ret |= SETIREG(SISSR, 0x14, 0x01); | |
1570 | } /* else error */ | |
1571 | } | |
1572 | } | |
1573 | } | |
1574 | return ret; | |
1575 | } | |
1576 | ||
1577 | static int | |
1578 | sisusb_verify_mclk(struct sisusb_usb_data *sisusb) | |
1579 | { | |
1580 | int ret = 0; | |
1581 | u32 ramptr = SISUSB_PCI_MEMBASE; | |
1582 | u8 tmp1, tmp2, i, j; | |
1583 | ||
1584 | ret |= WRITEB(ramptr, 0xaa); | |
1585 | ret |= WRITEB(ramptr + 16, 0x55); | |
1586 | ret |= READB(ramptr, &tmp1); | |
1587 | ret |= READB(ramptr + 16, &tmp2); | |
1588 | if ((tmp1 != 0xaa) || (tmp2 != 0x55)) { | |
1589 | for (i = 0, j = 16; i < 2; i++, j += 16) { | |
1590 | ret |= GETIREG(SISSR, 0x21, &tmp1); | |
1591 | ret |= SETIREGAND(SISSR, 0x21, (tmp1 & 0xfb)); | |
1592 | ret |= SETIREGOR(SISSR, 0x3c, 0x01); /* not on 330 */ | |
1593 | ret |= SETIREGAND(SISSR, 0x3c, 0xfe); /* not on 330 */ | |
1594 | ret |= SETIREG(SISSR, 0x21, tmp1); | |
1595 | ret |= WRITEB(ramptr + 16 + j, j); | |
1596 | ret |= READB(ramptr + 16 + j, &tmp1); | |
1597 | if (tmp1 == j) { | |
1598 | ret |= WRITEB(ramptr + j, j); | |
1599 | break; | |
1600 | } | |
1601 | } | |
1602 | } | |
1603 | return ret; | |
1604 | } | |
1605 | ||
1606 | static int | |
1607 | sisusb_set_rank(struct sisusb_usb_data *sisusb, int *iret, int index, | |
1608 | u8 rankno, u8 chab, const u8 dramtype[][5], | |
1609 | int bw) | |
1610 | { | |
1611 | int ret = 0, ranksize; | |
1612 | u8 tmp; | |
1613 | ||
1614 | *iret = 0; | |
1615 | ||
1616 | if ((rankno == 2) && (dramtype[index][0] == 2)) | |
1617 | return ret; | |
1618 | ||
1619 | ranksize = dramtype[index][3] / 2 * bw / 32; | |
1620 | ||
1621 | if ((ranksize * rankno) > 128) | |
1622 | return ret; | |
1623 | ||
1624 | tmp = 0; | |
1625 | while ((ranksize >>= 1) > 0) tmp += 0x10; | |
1626 | tmp |= ((rankno - 1) << 2); | |
1627 | tmp |= ((bw / 64) & 0x02); | |
1628 | tmp |= (chab & 0x01); | |
1629 | ||
1630 | ret = SETIREG(SISSR, 0x14, tmp); | |
1631 | ret |= sisusb_triggersr16(sisusb, 0); /* sic! */ | |
1632 | ||
1633 | *iret = 1; | |
1634 | ||
1635 | return ret; | |
1636 | } | |
1637 | ||
1638 | static int | |
1639 | sisusb_check_rbc(struct sisusb_usb_data *sisusb, int *iret, u32 inc, int testn) | |
1640 | { | |
1641 | int ret = 0, i; | |
1642 | u32 j, tmp; | |
1643 | ||
1644 | *iret = 0; | |
1645 | ||
1646 | for (i = 0, j = 0; i < testn; i++) { | |
1647 | ret |= WRITEL(sisusb->vrambase + j, j); | |
1648 | j += inc; | |
1649 | } | |
1650 | ||
1651 | for (i = 0, j = 0; i < testn; i++) { | |
1652 | ret |= READL(sisusb->vrambase + j, &tmp); | |
1653 | if (tmp != j) return ret; | |
1654 | j += inc; | |
1655 | } | |
1656 | ||
1657 | *iret = 1; | |
1658 | return ret; | |
1659 | } | |
1660 | ||
1661 | static int | |
1662 | sisusb_check_ranks(struct sisusb_usb_data *sisusb, int *iret, int rankno, | |
1663 | int idx, int bw, const u8 rtype[][5]) | |
1664 | { | |
1665 | int ret = 0, i, i2ret; | |
1666 | u32 inc; | |
1667 | ||
1668 | *iret = 0; | |
1669 | ||
1670 | for (i = rankno; i >= 1; i--) { | |
1671 | inc = 1 << (rtype[idx][2] + | |
1672 | rtype[idx][1] + | |
1673 | rtype[idx][0] + | |
1674 | bw / 64 + i); | |
1675 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2); | |
1676 | if (!i2ret) | |
1677 | return ret; | |
1678 | } | |
1679 | ||
1680 | inc = 1 << (rtype[idx][2] + bw / 64 + 2); | |
1681 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 4); | |
1682 | if (!i2ret) | |
1683 | return ret; | |
1684 | ||
1685 | inc = 1 << (10 + bw / 64); | |
1686 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2); | |
1687 | if (!i2ret) | |
1688 | return ret; | |
1689 | ||
1690 | *iret = 1; | |
1691 | return ret; | |
1692 | } | |
1693 | ||
1694 | static int | |
1695 | sisusb_get_sdram_size(struct sisusb_usb_data *sisusb, int *iret, int bw, | |
1696 | int chab) | |
1697 | { | |
1698 | int ret = 0, i2ret = 0, i, j; | |
1699 | static const u8 sdramtype[13][5] = { | |
1700 | { 2, 12, 9, 64, 0x35 }, | |
1701 | { 1, 13, 9, 64, 0x44 }, | |
1702 | { 2, 12, 8, 32, 0x31 }, | |
1703 | { 2, 11, 9, 32, 0x25 }, | |
1704 | { 1, 12, 9, 32, 0x34 }, | |
1705 | { 1, 13, 8, 32, 0x40 }, | |
1706 | { 2, 11, 8, 16, 0x21 }, | |
1707 | { 1, 12, 8, 16, 0x30 }, | |
1708 | { 1, 11, 9, 16, 0x24 }, | |
1709 | { 1, 11, 8, 8, 0x20 }, | |
1710 | { 2, 9, 8, 4, 0x01 }, | |
1711 | { 1, 10, 8, 4, 0x10 }, | |
1712 | { 1, 9, 8, 2, 0x00 } | |
1713 | }; | |
1714 | ||
1715 | *iret = 1; /* error */ | |
1716 | ||
1717 | for (i = 0; i < 13; i++) { | |
1718 | ret |= SETIREGANDOR(SISSR, 0x13, 0x80, sdramtype[i][4]); | |
1719 | for (j = 2; j > 0; j--) { | |
1720 | ret |= sisusb_set_rank(sisusb, &i2ret, i, j, | |
1721 | chab, sdramtype, bw); | |
1722 | if (!i2ret) | |
1723 | continue; | |
1724 | ||
1725 | ret |= sisusb_check_ranks(sisusb, &i2ret, j, i, | |
1726 | bw, sdramtype); | |
1727 | if (i2ret) { | |
1728 | *iret = 0; /* ram size found */ | |
1729 | return ret; | |
1730 | } | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | return ret; | |
1735 | } | |
1736 | ||
1737 | static int | |
1738 | sisusb_setup_screen(struct sisusb_usb_data *sisusb, int clrall, int drwfr) | |
1739 | { | |
1740 | int ret = 0; | |
1741 | u32 address; | |
1742 | int i, length, modex, modey, bpp; | |
1743 | ||
1744 | modex = 640; modey = 480; bpp = 2; | |
1745 | ||
1746 | address = sisusb->vrambase; /* Clear video ram */ | |
1747 | ||
1748 | if (clrall) | |
1749 | length = sisusb->vramsize; | |
1750 | else | |
1751 | length = modex * bpp * modey; | |
1752 | ||
1753 | ret = sisusb_clear_vram(sisusb, address, length); | |
1754 | ||
1755 | if (!ret && drwfr) { | |
1756 | for (i = 0; i < modex; i++) { | |
1757 | address = sisusb->vrambase + (i * bpp); | |
1758 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, | |
1759 | address, 0xf100); | |
1760 | address += (modex * (modey-1) * bpp); | |
1761 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, | |
1762 | address, 0xf100); | |
1763 | } | |
1764 | for (i = 0; i < modey; i++) { | |
1765 | address = sisusb->vrambase + ((i * modex) * bpp); | |
1766 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, | |
1767 | address, 0xf100); | |
1768 | address += ((modex - 1) * bpp); | |
1769 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, | |
1770 | address, 0xf100); | |
1771 | } | |
1772 | } | |
1773 | ||
1774 | return ret; | |
1775 | } | |
1776 | ||
1777 | static int | |
1778 | sisusb_set_default_mode(struct sisusb_usb_data *sisusb, int touchengines) | |
1779 | { | |
1780 | int ret = 0, i, j, modex, modey, bpp, du; | |
1781 | u8 sr31, cr63, tmp8; | |
1782 | static const char attrdata[] = { | |
1783 | 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07, | |
1784 | 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f, | |
1785 | 0x01,0x00,0x00,0x00 | |
1786 | }; | |
1787 | static const char crtcrdata[] = { | |
1788 | 0x5f,0x4f,0x50,0x82,0x54,0x80,0x0b,0x3e, | |
1789 | 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00, | |
1790 | 0xea,0x8c,0xdf,0x28,0x40,0xe7,0x04,0xa3, | |
1791 | 0xff | |
1792 | }; | |
1793 | static const char grcdata[] = { | |
1794 | 0x00,0x00,0x00,0x00,0x00,0x40,0x05,0x0f, | |
1795 | 0xff | |
1796 | }; | |
1797 | static const char crtcdata[] = { | |
1798 | 0x5f,0x4f,0x4f,0x83,0x55,0x81,0x0b,0x3e, | |
1799 | 0xe9,0x8b,0xdf,0xe8,0x0c,0x00,0x00,0x05, | |
1800 | 0x00 | |
1801 | }; | |
1802 | ||
1803 | modex = 640; modey = 480; bpp = 2; | |
1804 | ||
1805 | GETIREG(SISSR, 0x31, &sr31); | |
1806 | GETIREG(SISCR, 0x63, &cr63); | |
1807 | SETIREGOR(SISSR, 0x01, 0x20); | |
1808 | SETIREG(SISCR, 0x63, cr63 & 0xbf); | |
1809 | SETIREGOR(SISCR, 0x17, 0x80); | |
1810 | SETIREGOR(SISSR, 0x1f, 0x04); | |
1811 | SETIREGAND(SISSR, 0x07, 0xfb); | |
1812 | SETIREG(SISSR, 0x00, 0x03); /* seq */ | |
1813 | SETIREG(SISSR, 0x01, 0x21); | |
1814 | SETIREG(SISSR, 0x02, 0x0f); | |
1815 | SETIREG(SISSR, 0x03, 0x00); | |
1816 | SETIREG(SISSR, 0x04, 0x0e); | |
1817 | SETREG(SISMISCW, 0x23); /* misc */ | |
1818 | for (i = 0; i <= 0x18; i++) { /* crtc */ | |
1819 | SETIREG(SISCR, i, crtcrdata[i]); | |
1820 | } | |
1821 | for (i = 0; i <= 0x13; i++) { /* att */ | |
1822 | GETREG(SISINPSTAT, &tmp8); | |
1823 | SETREG(SISAR, i); | |
1824 | SETREG(SISAR, attrdata[i]); | |
1825 | } | |
1826 | GETREG(SISINPSTAT, &tmp8); | |
1827 | SETREG(SISAR, 0x14); | |
1828 | SETREG(SISAR, 0x00); | |
1829 | GETREG(SISINPSTAT, &tmp8); | |
1830 | SETREG(SISAR, 0x20); | |
1831 | GETREG(SISINPSTAT, &tmp8); | |
1832 | for (i = 0; i <= 0x08; i++) { /* grc */ | |
1833 | SETIREG(SISGR, i, grcdata[i]); | |
1834 | } | |
1835 | SETIREGAND(SISGR, 0x05, 0xbf); | |
1836 | for (i = 0x0A; i <= 0x0E; i++) { /* clr ext */ | |
1837 | SETIREG(SISSR, i, 0x00); | |
1838 | } | |
1839 | SETIREGAND(SISSR, 0x37, 0xfe); | |
1840 | SETREG(SISMISCW, 0xef); /* sync */ | |
1841 | SETIREG(SISCR, 0x11, 0x00); /* crtc */ | |
1842 | for (j = 0x00, i = 0; i <= 7; i++, j++) { | |
1843 | SETIREG(SISCR, j, crtcdata[i]); | |
1844 | } | |
1845 | for (j = 0x10; i <= 10; i++, j++) { | |
1846 | SETIREG(SISCR, j, crtcdata[i]); | |
1847 | } | |
1848 | for (j = 0x15; i <= 12; i++, j++) { | |
1849 | SETIREG(SISCR, j, crtcdata[i]); | |
1850 | } | |
1851 | for (j = 0x0A; i <= 15; i++, j++) { | |
1852 | SETIREG(SISSR, j, crtcdata[i]); | |
1853 | } | |
1854 | SETIREG(SISSR, 0x0E, (crtcdata[16] & 0xE0)); | |
1855 | SETIREGANDOR(SISCR, 0x09, 0x5f, ((crtcdata[16] & 0x01) << 5)); | |
1856 | SETIREG(SISCR, 0x14, 0x4f); | |
1857 | du = (modex / 16) * (bpp * 2); /* offset/pitch */ | |
1858 | if (modex % 16) du += bpp; | |
1859 | SETIREGANDOR(SISSR, 0x0e, 0xf0, ((du >> 8) & 0x0f)); | |
1860 | SETIREG(SISCR, 0x13, (du & 0xff)); | |
1861 | du <<= 5; | |
1862 | tmp8 = du >> 8; | |
1863 | if (du & 0xff) tmp8++; | |
1864 | SETIREG(SISSR, 0x10, tmp8); | |
1865 | SETIREG(SISSR, 0x31, 0x00); /* VCLK */ | |
1866 | SETIREG(SISSR, 0x2b, 0x1b); | |
1867 | SETIREG(SISSR, 0x2c, 0xe1); | |
1868 | SETIREG(SISSR, 0x2d, 0x01); | |
1869 | SETIREGAND(SISSR, 0x3d, 0xfe); /* FIFO */ | |
1870 | SETIREG(SISSR, 0x08, 0xae); | |
1871 | SETIREGAND(SISSR, 0x09, 0xf0); | |
1872 | SETIREG(SISSR, 0x08, 0x34); | |
1873 | SETIREGOR(SISSR, 0x3d, 0x01); | |
1874 | SETIREGAND(SISSR, 0x1f, 0x3f); /* mode regs */ | |
1875 | SETIREGANDOR(SISSR, 0x06, 0xc0, 0x0a); | |
1876 | SETIREG(SISCR, 0x19, 0x00); | |
1877 | SETIREGAND(SISCR, 0x1a, 0xfc); | |
1878 | SETIREGAND(SISSR, 0x0f, 0xb7); | |
1879 | SETIREGAND(SISSR, 0x31, 0xfb); | |
1880 | SETIREGANDOR(SISSR, 0x21, 0x1f, 0xa0); | |
1881 | SETIREGAND(SISSR, 0x32, 0xf3); | |
1882 | SETIREGANDOR(SISSR, 0x07, 0xf8, 0x03); | |
1883 | SETIREG(SISCR, 0x52, 0x6c); | |
1884 | ||
1885 | SETIREG(SISCR, 0x0d, 0x00); /* adjust frame */ | |
1886 | SETIREG(SISCR, 0x0c, 0x00); | |
1887 | SETIREG(SISSR, 0x0d, 0x00); | |
1888 | SETIREGAND(SISSR, 0x37, 0xfe); | |
1889 | ||
1890 | SETIREG(SISCR, 0x32, 0x20); | |
1891 | SETIREGAND(SISSR, 0x01, 0xdf); /* enable display */ | |
1892 | SETIREG(SISCR, 0x63, (cr63 & 0xbf)); | |
1893 | SETIREG(SISSR, 0x31, (sr31 & 0xfb)); | |
1894 | ||
1895 | if (touchengines) { | |
1896 | SETIREG(SISSR, 0x20, 0xa1); /* enable engines */ | |
1897 | SETIREGOR(SISSR, 0x1e, 0x5a); | |
1898 | ||
1899 | SETIREG(SISSR, 0x26, 0x01); /* disable cmdqueue */ | |
1900 | SETIREG(SISSR, 0x27, 0x1f); | |
1901 | SETIREG(SISSR, 0x26, 0x00); | |
1902 | } | |
1903 | ||
1904 | SETIREG(SISCR, 0x34, 0x44); /* we just set std mode #44 */ | |
1905 | ||
1906 | return ret; | |
1907 | } | |
1908 | ||
1909 | static int | |
1910 | sisusb_init_gfxcore(struct sisusb_usb_data *sisusb) | |
1911 | { | |
1912 | int ret = 0, i, j, bw, chab, iret, retry = 3; | |
1913 | u8 tmp8, ramtype; | |
1914 | u32 tmp32; | |
1915 | static const char mclktable[] = { | |
1916 | 0x3b, 0x22, 0x01, 143, | |
1917 | 0x3b, 0x22, 0x01, 143, | |
1918 | 0x3b, 0x22, 0x01, 143, | |
1919 | 0x3b, 0x22, 0x01, 143 | |
1920 | }; | |
1921 | static const char eclktable[] = { | |
1922 | 0x3b, 0x22, 0x01, 143, | |
1923 | 0x3b, 0x22, 0x01, 143, | |
1924 | 0x3b, 0x22, 0x01, 143, | |
1925 | 0x3b, 0x22, 0x01, 143 | |
1926 | }; | |
1927 | static const char ramtypetable1[] = { | |
1928 | 0x00, 0x04, 0x60, 0x60, | |
1929 | 0x0f, 0x0f, 0x1f, 0x1f, | |
1930 | 0xba, 0xba, 0xba, 0xba, | |
1931 | 0xa9, 0xa9, 0xac, 0xac, | |
1932 | 0xa0, 0xa0, 0xa0, 0xa8, | |
1933 | 0x00, 0x00, 0x02, 0x02, | |
1934 | 0x30, 0x30, 0x40, 0x40 | |
1935 | }; | |
1936 | static const char ramtypetable2[] = { | |
1937 | 0x77, 0x77, 0x44, 0x44, | |
1938 | 0x77, 0x77, 0x44, 0x44, | |
1939 | 0x00, 0x00, 0x00, 0x00, | |
1940 | 0x5b, 0x5b, 0xab, 0xab, | |
1941 | 0x00, 0x00, 0xf0, 0xf8 | |
1942 | }; | |
1943 | ||
1944 | while (retry--) { | |
1945 | ||
1946 | /* Enable VGA */ | |
1947 | ret = GETREG(SISVGAEN, &tmp8); | |
1948 | ret |= SETREG(SISVGAEN, (tmp8 | 0x01)); | |
1949 | ||
1950 | /* Enable GPU access to VRAM */ | |
1951 | ret |= GETREG(SISMISCR, &tmp8); | |
1952 | ret |= SETREG(SISMISCW, (tmp8 | 0x01)); | |
1953 | ||
1954 | if (ret) continue; | |
1955 | ||
1956 | /* Reset registers */ | |
1957 | ret |= SETIREGAND(SISCR, 0x5b, 0xdf); | |
1958 | ret |= SETIREG(SISSR, 0x05, 0x86); | |
1959 | ret |= SETIREGOR(SISSR, 0x20, 0x01); | |
1960 | ||
1961 | ret |= SETREG(SISMISCW, 0x67); | |
1962 | ||
1963 | for (i = 0x06; i <= 0x1f; i++) { | |
1964 | ret |= SETIREG(SISSR, i, 0x00); | |
1965 | } | |
1966 | for (i = 0x21; i <= 0x27; i++) { | |
1967 | ret |= SETIREG(SISSR, i, 0x00); | |
1968 | } | |
1969 | for (i = 0x31; i <= 0x3d; i++) { | |
1970 | ret |= SETIREG(SISSR, i, 0x00); | |
1971 | } | |
1972 | for (i = 0x12; i <= 0x1b; i++) { | |
1973 | ret |= SETIREG(SISSR, i, 0x00); | |
1974 | } | |
1975 | for (i = 0x79; i <= 0x7c; i++) { | |
1976 | ret |= SETIREG(SISCR, i, 0x00); | |
1977 | } | |
1978 | ||
1979 | if (ret) continue; | |
1980 | ||
1981 | ret |= SETIREG(SISCR, 0x63, 0x80); | |
1982 | ||
1983 | ret |= GETIREG(SISSR, 0x3a, &ramtype); | |
1984 | ramtype &= 0x03; | |
1985 | ||
1986 | ret |= SETIREG(SISSR, 0x28, mclktable[ramtype * 4]); | |
1987 | ret |= SETIREG(SISSR, 0x29, mclktable[(ramtype * 4) + 1]); | |
1988 | ret |= SETIREG(SISSR, 0x2a, mclktable[(ramtype * 4) + 2]); | |
1989 | ||
1990 | ret |= SETIREG(SISSR, 0x2e, eclktable[ramtype * 4]); | |
1991 | ret |= SETIREG(SISSR, 0x2f, eclktable[(ramtype * 4) + 1]); | |
1992 | ret |= SETIREG(SISSR, 0x30, eclktable[(ramtype * 4) + 2]); | |
1993 | ||
1994 | ret |= SETIREG(SISSR, 0x07, 0x18); | |
1995 | ret |= SETIREG(SISSR, 0x11, 0x0f); | |
1996 | ||
1997 | if (ret) continue; | |
1998 | ||
1999 | for (i = 0x15, j = 0; i <= 0x1b; i++, j++) { | |
2000 | ret |= SETIREG(SISSR, i, ramtypetable1[(j*4) + ramtype]); | |
2001 | } | |
2002 | for (i = 0x40, j = 0; i <= 0x44; i++, j++) { | |
2003 | ret |= SETIREG(SISCR, i, ramtypetable2[(j*4) + ramtype]); | |
2004 | } | |
2005 | ||
2006 | ret |= SETIREG(SISCR, 0x49, 0xaa); | |
2007 | ||
2008 | ret |= SETIREG(SISSR, 0x1f, 0x00); | |
2009 | ret |= SETIREG(SISSR, 0x20, 0xa0); | |
2010 | ret |= SETIREG(SISSR, 0x23, 0xf6); | |
2011 | ret |= SETIREG(SISSR, 0x24, 0x0d); | |
2012 | ret |= SETIREG(SISSR, 0x25, 0x33); | |
2013 | ||
2014 | ret |= SETIREG(SISSR, 0x11, 0x0f); | |
2015 | ||
2016 | ret |= SETIREGOR(SISPART1, 0x2f, 0x01); | |
2017 | ||
2018 | ret |= SETIREGAND(SISCAP, 0x3f, 0xef); | |
2019 | ||
2020 | if (ret) continue; | |
2021 | ||
2022 | ret |= SETIREG(SISPART1, 0x00, 0x00); | |
2023 | ||
2024 | ret |= GETIREG(SISSR, 0x13, &tmp8); | |
2025 | tmp8 >>= 4; | |
2026 | ||
2027 | ret |= SETIREG(SISPART1, 0x02, 0x00); | |
2028 | ret |= SETIREG(SISPART1, 0x2e, 0x08); | |
2029 | ||
2030 | ret |= sisusb_read_pci_config(sisusb, 0x50, &tmp32); | |
2031 | tmp32 &= 0x00f00000; | |
2032 | tmp8 = (tmp32 == 0x100000) ? 0x33 : 0x03; | |
2033 | ret |= SETIREG(SISSR, 0x25, tmp8); | |
2034 | tmp8 = (tmp32 == 0x100000) ? 0xaa : 0x88; | |
2035 | ret |= SETIREG(SISCR, 0x49, tmp8); | |
2036 | ||
2037 | ret |= SETIREG(SISSR, 0x27, 0x1f); | |
2038 | ret |= SETIREG(SISSR, 0x31, 0x00); | |
2039 | ret |= SETIREG(SISSR, 0x32, 0x11); | |
2040 | ret |= SETIREG(SISSR, 0x33, 0x00); | |
2041 | ||
2042 | if (ret) continue; | |
2043 | ||
2044 | ret |= SETIREG(SISCR, 0x83, 0x00); | |
2045 | ||
2046 | ret |= sisusb_set_default_mode(sisusb, 0); | |
2047 | ||
2048 | ret |= SETIREGAND(SISSR, 0x21, 0xdf); | |
2049 | ret |= SETIREGOR(SISSR, 0x01, 0x20); | |
2050 | ret |= SETIREGOR(SISSR, 0x16, 0x0f); | |
2051 | ||
2052 | ret |= sisusb_triggersr16(sisusb, ramtype); | |
2053 | ||
2054 | /* Disable refresh */ | |
2055 | ret |= SETIREGAND(SISSR, 0x17, 0xf8); | |
2056 | ret |= SETIREGOR(SISSR, 0x19, 0x03); | |
2057 | ||
2058 | ret |= sisusb_getbuswidth(sisusb, &bw, &chab); | |
2059 | ret |= sisusb_verify_mclk(sisusb); | |
2060 | ||
2061 | if (ramtype <= 1) { | |
2062 | ret |= sisusb_get_sdram_size(sisusb, &iret, bw, chab); | |
2063 | if (iret) { | |
2064 | printk(KERN_ERR "sisusbvga[%d]: RAM size " | |
2065 | "detection failed, " | |
2066 | "assuming 8MB video RAM\n", | |
2067 | sisusb->minor); | |
2068 | ret |= SETIREG(SISSR,0x14,0x31); | |
2069 | /* TODO */ | |
2070 | } | |
2071 | } else { | |
2072 | printk(KERN_ERR "sisusbvga[%d]: DDR RAM device found, " | |
2073 | "assuming 8MB video RAM\n", | |
2074 | sisusb->minor); | |
2075 | ret |= SETIREG(SISSR,0x14,0x31); | |
2076 | /* *** TODO *** */ | |
2077 | } | |
2078 | ||
2079 | /* Enable refresh */ | |
2080 | ret |= SETIREG(SISSR, 0x16, ramtypetable1[4 + ramtype]); | |
2081 | ret |= SETIREG(SISSR, 0x17, ramtypetable1[8 + ramtype]); | |
2082 | ret |= SETIREG(SISSR, 0x19, ramtypetable1[16 + ramtype]); | |
2083 | ||
2084 | ret |= SETIREGOR(SISSR, 0x21, 0x20); | |
2085 | ||
2086 | ret |= SETIREG(SISSR, 0x22, 0xfb); | |
2087 | ret |= SETIREG(SISSR, 0x21, 0xa5); | |
2088 | ||
2089 | if (ret == 0) | |
2090 | break; | |
2091 | } | |
2092 | ||
2093 | return ret; | |
2094 | } | |
2095 | ||
2096 | #undef SETREG | |
2097 | #undef GETREG | |
2098 | #undef SETIREG | |
2099 | #undef GETIREG | |
2100 | #undef SETIREGOR | |
2101 | #undef SETIREGAND | |
2102 | #undef SETIREGANDOR | |
2103 | #undef READL | |
2104 | #undef WRITEL | |
2105 | ||
2106 | static void | |
2107 | sisusb_get_ramconfig(struct sisusb_usb_data *sisusb) | |
2108 | { | |
2109 | u8 tmp8, tmp82, ramtype; | |
2110 | int bw = 0; | |
2111 | char *ramtypetext1 = NULL; | |
2112 | const char *ramtypetext2[] = { "SDR SDRAM", "SDR SGRAM", | |
2113 | "DDR SDRAM", "DDR SGRAM" }; | |
2114 | static const int busSDR[4] = {64, 64, 128, 128}; | |
2115 | static const int busDDR[4] = {32, 32, 64, 64}; | |
2116 | static const int busDDRA[4] = {64+32, 64+32 , (64+32)*2, (64+32)*2}; | |
2117 | ||
2118 | sisusb_getidxreg(sisusb, SISSR, 0x14, &tmp8); | |
2119 | sisusb_getidxreg(sisusb, SISSR, 0x15, &tmp82); | |
2120 | sisusb_getidxreg(sisusb, SISSR, 0x3a, &ramtype); | |
2121 | sisusb->vramsize = (1 << ((tmp8 & 0xf0) >> 4)) * 1024 * 1024; | |
2122 | ramtype &= 0x03; | |
2123 | switch ((tmp8 >> 2) & 0x03) { | |
2124 | case 0: ramtypetext1 = "1 ch/1 r"; | |
2125 | if (tmp82 & 0x10) { | |
2126 | bw = 32; | |
2127 | } else { | |
2128 | bw = busSDR[(tmp8 & 0x03)]; | |
2129 | } | |
2130 | break; | |
2131 | case 1: ramtypetext1 = "1 ch/2 r"; | |
2132 | sisusb->vramsize <<= 1; | |
2133 | bw = busSDR[(tmp8 & 0x03)]; | |
2134 | break; | |
2135 | case 2: ramtypetext1 = "asymmeric"; | |
2136 | sisusb->vramsize += sisusb->vramsize/2; | |
2137 | bw = busDDRA[(tmp8 & 0x03)]; | |
2138 | break; | |
2139 | case 3: ramtypetext1 = "2 channel"; | |
2140 | sisusb->vramsize <<= 1; | |
2141 | bw = busDDR[(tmp8 & 0x03)]; | |
2142 | break; | |
2143 | } | |
2144 | ||
2145 | printk(KERN_INFO "sisusbvga[%d]: %dMB %s %s, bus width %d\n", | |
2146 | sisusb->minor, (sisusb->vramsize >> 20), ramtypetext1, | |
2147 | ramtypetext2[ramtype], bw); | |
2148 | } | |
2149 | ||
2150 | static int | |
2151 | sisusb_do_init_gfxdevice(struct sisusb_usb_data *sisusb) | |
2152 | { | |
2153 | struct sisusb_packet packet; | |
2154 | int ret; | |
2155 | u32 tmp32; | |
2156 | ||
2157 | /* Do some magic */ | |
2158 | packet.header = 0x001f; | |
2159 | packet.address = 0x00000324; | |
2160 | packet.data = 0x00000004; | |
2161 | ret = sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2162 | ||
2163 | packet.header = 0x001f; | |
2164 | packet.address = 0x00000364; | |
2165 | packet.data = 0x00000004; | |
2166 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2167 | ||
2168 | packet.header = 0x001f; | |
2169 | packet.address = 0x00000384; | |
2170 | packet.data = 0x00000004; | |
2171 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2172 | ||
2173 | packet.header = 0x001f; | |
2174 | packet.address = 0x00000100; | |
2175 | packet.data = 0x00000700; | |
2176 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2177 | ||
2178 | packet.header = 0x000f; | |
2179 | packet.address = 0x00000004; | |
2180 | ret |= sisusb_send_bridge_packet(sisusb, 6, &packet, 0); | |
2181 | packet.data |= 0x17; | |
2182 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2183 | ||
2184 | /* Init BAR 0 (VRAM) */ | |
2185 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); | |
2186 | ret |= sisusb_write_pci_config(sisusb, 0x10, 0xfffffff0); | |
2187 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); | |
2188 | tmp32 &= 0x0f; | |
2189 | tmp32 |= SISUSB_PCI_MEMBASE; | |
2190 | ret |= sisusb_write_pci_config(sisusb, 0x10, tmp32); | |
2191 | ||
2192 | /* Init BAR 1 (MMIO) */ | |
2193 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); | |
2194 | ret |= sisusb_write_pci_config(sisusb, 0x14, 0xfffffff0); | |
2195 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); | |
2196 | tmp32 &= 0x0f; | |
2197 | tmp32 |= SISUSB_PCI_MMIOBASE; | |
2198 | ret |= sisusb_write_pci_config(sisusb, 0x14, tmp32); | |
2199 | ||
2200 | /* Init BAR 2 (i/o ports) */ | |
2201 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); | |
2202 | ret |= sisusb_write_pci_config(sisusb, 0x18, 0xfffffff0); | |
2203 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); | |
2204 | tmp32 &= 0x0f; | |
2205 | tmp32 |= SISUSB_PCI_IOPORTBASE; | |
2206 | ret |= sisusb_write_pci_config(sisusb, 0x18, tmp32); | |
2207 | ||
2208 | /* Enable memory and i/o access */ | |
2209 | ret |= sisusb_read_pci_config(sisusb, 0x04, &tmp32); | |
2210 | tmp32 |= 0x3; | |
2211 | ret |= sisusb_write_pci_config(sisusb, 0x04, tmp32); | |
2212 | ||
2213 | if (ret == 0) { | |
2214 | /* Some further magic */ | |
2215 | packet.header = 0x001f; | |
2216 | packet.address = 0x00000050; | |
2217 | packet.data = 0x000000ff; | |
2218 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); | |
2219 | } | |
2220 | ||
2221 | return ret; | |
2222 | } | |
2223 | ||
2224 | /* Initialize the graphics device (return 0 on success) | |
2225 | * This initializes the net2280 as well as the PCI registers | |
2226 | * of the graphics board. | |
2227 | */ | |
2228 | ||
2229 | static int | |
2230 | sisusb_init_gfxdevice(struct sisusb_usb_data *sisusb, int initscreen) | |
2231 | { | |
2232 | int ret = 0, test = 0; | |
2233 | u32 tmp32; | |
2234 | ||
2235 | if (sisusb->devinit == 1) { | |
2236 | /* Read PCI BARs and see if they have been set up */ | |
2237 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); | |
2238 | if (ret) return ret; | |
2239 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MEMBASE) test++; | |
2240 | ||
2241 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); | |
2242 | if (ret) return ret; | |
2243 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MMIOBASE) test++; | |
2244 | ||
2245 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); | |
2246 | if (ret) return ret; | |
2247 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_IOPORTBASE) test++; | |
2248 | } | |
2249 | ||
2250 | /* No? So reset the device */ | |
2251 | if ((sisusb->devinit == 0) || (test != 3)) { | |
2252 | ||
2253 | ret |= sisusb_do_init_gfxdevice(sisusb); | |
2254 | ||
2255 | if (ret == 0) | |
2256 | sisusb->devinit = 1; | |
2257 | ||
2258 | } | |
2259 | ||
2260 | if (sisusb->devinit) { | |
2261 | /* Initialize the graphics core */ | |
2262 | if (sisusb_init_gfxcore(sisusb) == 0) { | |
2263 | sisusb->gfxinit = 1; | |
2264 | sisusb_get_ramconfig(sisusb); | |
2265 | ret |= sisusb_set_default_mode(sisusb, 1); | |
2266 | ret |= sisusb_setup_screen(sisusb, 1, initscreen); | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | return ret; | |
2271 | } | |
2272 | ||
2273 | /* fops */ | |
2274 | ||
2275 | static int | |
2276 | sisusb_open(struct inode *inode, struct file *file) | |
2277 | { | |
2278 | struct sisusb_usb_data *sisusb; | |
2279 | struct usb_interface *interface; | |
2280 | int subminor = iminor(inode); | |
2281 | ||
2282 | down(&disconnect_sem); | |
2283 | ||
2284 | if (!(interface = usb_find_interface(&sisusb_driver, subminor))) { | |
2285 | printk(KERN_ERR "sisusb[%d]: Failed to find interface\n", | |
2286 | subminor); | |
2287 | up(&disconnect_sem); | |
2288 | return -ENODEV; | |
2289 | } | |
2290 | ||
2291 | if (!(sisusb = usb_get_intfdata(interface))) { | |
2292 | up(&disconnect_sem); | |
2293 | return -ENODEV; | |
2294 | } | |
2295 | ||
2296 | down(&sisusb->lock); | |
2297 | ||
2298 | if (!sisusb->present || !sisusb->ready) { | |
2299 | up(&sisusb->lock); | |
2300 | up(&disconnect_sem); | |
2301 | return -ENODEV; | |
2302 | } | |
2303 | ||
2304 | if (sisusb->isopen) { | |
2305 | up(&sisusb->lock); | |
2306 | up(&disconnect_sem); | |
2307 | return -EBUSY; | |
2308 | } | |
2309 | ||
2310 | if (!sisusb->devinit) { | |
2311 | if (sisusb->sisusb_dev->speed == USB_SPEED_HIGH) { | |
2312 | if (sisusb_init_gfxdevice(sisusb, 0)) { | |
2313 | up(&sisusb->lock); | |
2314 | up(&disconnect_sem); | |
2315 | printk(KERN_ERR | |
2316 | "sisusbvga[%d]: Failed to initialize " | |
2317 | "device\n", | |
2318 | sisusb->minor); | |
2319 | return -EIO; | |
2320 | } | |
2321 | } else { | |
2322 | up(&sisusb->lock); | |
2323 | up(&disconnect_sem); | |
2324 | printk(KERN_ERR | |
2325 | "sisusbvga[%d]: Device not attached to " | |
2326 | "USB 2.0 hub\n", | |
2327 | sisusb->minor); | |
2328 | return -EIO; | |
2329 | } | |
2330 | } | |
2331 | ||
2332 | /* increment usage count for the device */ | |
2333 | kref_get(&sisusb->kref); | |
2334 | ||
2335 | sisusb->isopen = 1; | |
2336 | ||
2337 | file->private_data = sisusb; | |
2338 | ||
2339 | up(&sisusb->lock); | |
2340 | ||
2341 | up(&disconnect_sem); | |
2342 | ||
2343 | printk(KERN_DEBUG "sisusbvga[%d]: opened", sisusb->minor); | |
2344 | ||
2345 | return 0; | |
2346 | } | |
2347 | ||
2348 | static void | |
2349 | sisusb_delete(struct kref *kref) | |
2350 | { | |
2351 | struct sisusb_usb_data *sisusb = to_sisusb_dev(kref); | |
2352 | ||
2353 | if (!sisusb) | |
2354 | return; | |
2355 | ||
2356 | if (sisusb->sisusb_dev) | |
2357 | usb_put_dev(sisusb->sisusb_dev); | |
2358 | ||
2359 | sisusb->sisusb_dev = NULL; | |
2360 | sisusb_free_buffers(sisusb); | |
2361 | sisusb_free_urbs(sisusb); | |
2362 | kfree(sisusb); | |
2363 | } | |
2364 | ||
2365 | static int | |
2366 | sisusb_release(struct inode *inode, struct file *file) | |
2367 | { | |
2368 | struct sisusb_usb_data *sisusb; | |
2369 | int myminor; | |
2370 | ||
2371 | down(&disconnect_sem); | |
2372 | ||
2373 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) { | |
2374 | up(&disconnect_sem); | |
2375 | return -ENODEV; | |
2376 | } | |
2377 | ||
2378 | down(&sisusb->lock); | |
2379 | ||
2380 | if (sisusb->present) { | |
2381 | /* Wait for all URBs to finish if device still present */ | |
2382 | if (!sisusb_wait_all_out_complete(sisusb)) | |
2383 | sisusb_kill_all_busy(sisusb); | |
2384 | } | |
2385 | ||
2386 | myminor = sisusb->minor; | |
2387 | ||
2388 | sisusb->isopen = 0; | |
2389 | file->private_data = NULL; | |
2390 | ||
2391 | up(&sisusb->lock); | |
2392 | ||
2393 | /* decrement the usage count on our device */ | |
2394 | kref_put(&sisusb->kref, sisusb_delete); | |
2395 | ||
2396 | up(&disconnect_sem); | |
2397 | ||
2398 | printk(KERN_DEBUG "sisusbvga[%d]: released", myminor); | |
2399 | ||
2400 | return 0; | |
2401 | } | |
2402 | ||
2403 | static ssize_t | |
2404 | sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) | |
2405 | { | |
2406 | struct sisusb_usb_data *sisusb; | |
2407 | ssize_t bytes_read = 0; | |
2408 | int errno = 0; | |
2409 | u8 buf8; | |
2410 | u16 buf16; | |
2411 | u32 buf32, address; | |
2412 | ||
2413 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) | |
2414 | return -ENODEV; | |
2415 | ||
2416 | down(&sisusb->lock); | |
2417 | ||
2418 | /* Sanity check */ | |
2419 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { | |
2420 | up(&sisusb->lock); | |
2421 | return -ENODEV; | |
2422 | } | |
2423 | ||
2424 | if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE && | |
2425 | (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) { | |
2426 | ||
2427 | address = (*ppos) - | |
2428 | SISUSB_PCI_PSEUDO_IOPORTBASE + | |
2429 | SISUSB_PCI_IOPORTBASE; | |
2430 | ||
2431 | /* Read i/o ports | |
2432 | * Byte, word and long(32) can be read. As this | |
2433 | * emulates inX instructions, the data returned is | |
2434 | * in machine-endianness. | |
2435 | */ | |
2436 | switch (count) { | |
2437 | ||
2438 | case 1: | |
2439 | if (sisusb_read_memio_byte(sisusb, | |
2440 | SISUSB_TYPE_IO, | |
2441 | address, &buf8)) | |
2442 | errno = -EIO; | |
2443 | else if (put_user(buf8, (u8 __user *)buffer)) | |
2444 | errno = -EFAULT; | |
2445 | else | |
2446 | bytes_read = 1; | |
2447 | ||
2448 | break; | |
2449 | ||
2450 | case 2: | |
2451 | if (sisusb_read_memio_word(sisusb, | |
2452 | SISUSB_TYPE_IO, | |
2453 | address, &buf16)) | |
2454 | errno = -EIO; | |
2455 | else if (put_user(buf16, (u16 __user *)buffer)) | |
2456 | errno = -EFAULT; | |
2457 | else | |
2458 | bytes_read = 2; | |
2459 | ||
2460 | break; | |
2461 | ||
2462 | case 4: | |
2463 | if (sisusb_read_memio_long(sisusb, | |
2464 | SISUSB_TYPE_IO, | |
2465 | address, &buf32)) | |
2466 | errno = -EIO; | |
2467 | else if (put_user(buf32, (u32 __user *)buffer)) | |
2468 | errno = -EFAULT; | |
2469 | else | |
2470 | bytes_read = 4; | |
2471 | ||
2472 | break; | |
2473 | ||
2474 | default: | |
2475 | errno = -EIO; | |
2476 | ||
2477 | } | |
2478 | ||
2479 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE && | |
2480 | (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) { | |
2481 | ||
2482 | address = (*ppos) - | |
2483 | SISUSB_PCI_PSEUDO_MEMBASE + | |
2484 | SISUSB_PCI_MEMBASE; | |
2485 | ||
2486 | /* Read video ram | |
2487 | * Remember: Data delivered is never endian-corrected | |
2488 | */ | |
2489 | errno = sisusb_read_mem_bulk(sisusb, address, | |
2490 | NULL, count, buffer, &bytes_read); | |
2491 | ||
2492 | if (bytes_read) | |
2493 | errno = bytes_read; | |
2494 | ||
2495 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE && | |
2496 | (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) { | |
2497 | ||
2498 | address = (*ppos) - | |
2499 | SISUSB_PCI_PSEUDO_MMIOBASE + | |
2500 | SISUSB_PCI_MMIOBASE; | |
2501 | ||
2502 | /* Read MMIO | |
2503 | * Remember: Data delivered is never endian-corrected | |
2504 | */ | |
2505 | errno = sisusb_read_mem_bulk(sisusb, address, | |
2506 | NULL, count, buffer, &bytes_read); | |
2507 | ||
2508 | if (bytes_read) | |
2509 | errno = bytes_read; | |
2510 | ||
2511 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE && | |
2512 | (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + 0x5c) { | |
2513 | ||
2514 | if (count != 4) { | |
2515 | up(&sisusb->lock); | |
2516 | return -EINVAL; | |
2517 | } | |
2518 | ||
2519 | address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE; | |
2520 | ||
2521 | /* Read PCI config register | |
2522 | * Return value delivered in machine endianness. | |
2523 | */ | |
2524 | if (sisusb_read_pci_config(sisusb, address, &buf32)) | |
2525 | errno = -EIO; | |
2526 | else if (put_user(buf32, (u32 __user *)buffer)) | |
2527 | errno = -EFAULT; | |
2528 | else | |
2529 | bytes_read = 4; | |
2530 | ||
2531 | } else { | |
2532 | ||
2533 | errno = -EBADFD; | |
2534 | ||
2535 | } | |
2536 | ||
2537 | (*ppos) += bytes_read; | |
2538 | ||
2539 | up(&sisusb->lock); | |
2540 | ||
2541 | return errno ? errno : bytes_read; | |
2542 | } | |
2543 | ||
2544 | static ssize_t | |
2545 | sisusb_write(struct file *file, const char __user *buffer, size_t count, | |
2546 | loff_t *ppos) | |
2547 | { | |
2548 | struct sisusb_usb_data *sisusb; | |
2549 | int errno = 0; | |
2550 | ssize_t bytes_written = 0; | |
2551 | u8 buf8; | |
2552 | u16 buf16; | |
2553 | u32 buf32, address; | |
2554 | ||
2555 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) | |
2556 | return -ENODEV; | |
2557 | ||
2558 | down(&sisusb->lock); | |
2559 | ||
2560 | /* Sanity check */ | |
2561 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { | |
2562 | up(&sisusb->lock); | |
2563 | return -ENODEV; | |
2564 | } | |
2565 | ||
2566 | if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE && | |
2567 | (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) { | |
2568 | ||
2569 | address = (*ppos) - | |
2570 | SISUSB_PCI_PSEUDO_IOPORTBASE + | |
2571 | SISUSB_PCI_IOPORTBASE; | |
2572 | ||
2573 | /* Write i/o ports | |
2574 | * Byte, word and long(32) can be written. As this | |
2575 | * emulates outX instructions, the data is expected | |
2576 | * in machine-endianness. | |
2577 | */ | |
2578 | switch (count) { | |
2579 | ||
2580 | case 1: | |
2581 | if (get_user(buf8, (u8 __user *)buffer)) | |
2582 | errno = -EFAULT; | |
2583 | else if (sisusb_write_memio_byte(sisusb, | |
2584 | SISUSB_TYPE_IO, | |
2585 | address, buf8)) | |
2586 | errno = -EIO; | |
2587 | else | |
2588 | bytes_written = 1; | |
2589 | ||
2590 | break; | |
2591 | ||
2592 | case 2: | |
2593 | if (get_user(buf16, (u16 __user *)buffer)) | |
2594 | errno = -EFAULT; | |
2595 | else if (sisusb_write_memio_word(sisusb, | |
2596 | SISUSB_TYPE_IO, | |
2597 | address, buf16)) | |
2598 | errno = -EIO; | |
2599 | else | |
2600 | bytes_written = 2; | |
2601 | ||
2602 | break; | |
2603 | ||
2604 | case 4: | |
2605 | if (get_user(buf32, (u32 __user *)buffer)) | |
2606 | errno = -EFAULT; | |
2607 | else if (sisusb_write_memio_long(sisusb, | |
2608 | SISUSB_TYPE_IO, | |
2609 | address, buf32)) | |
2610 | errno = -EIO; | |
2611 | else | |
2612 | bytes_written = 4; | |
2613 | ||
2614 | break; | |
2615 | ||
2616 | default: | |
2617 | errno = -EIO; | |
2618 | } | |
2619 | ||
2620 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE && | |
2621 | (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) { | |
2622 | ||
2623 | address = (*ppos) - | |
2624 | SISUSB_PCI_PSEUDO_MEMBASE + | |
2625 | SISUSB_PCI_MEMBASE; | |
2626 | ||
2627 | /* Write video ram. | |
2628 | * Buffer is copied 1:1, therefore, on big-endian | |
2629 | * machines, the data must be swapped by userland | |
2630 | * in advance (if applicable; no swapping in 8bpp | |
2631 | * mode or if YUV data is being transferred). | |
2632 | */ | |
2633 | errno = sisusb_write_mem_bulk(sisusb, address, NULL, | |
2634 | count, buffer, 0, &bytes_written); | |
2635 | ||
2636 | if (bytes_written) | |
2637 | errno = bytes_written; | |
2638 | ||
2639 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE && | |
2640 | (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) { | |
2641 | ||
2642 | address = (*ppos) - | |
2643 | SISUSB_PCI_PSEUDO_MMIOBASE + | |
2644 | SISUSB_PCI_MMIOBASE; | |
2645 | ||
2646 | /* Write MMIO. | |
2647 | * Buffer is copied 1:1, therefore, on big-endian | |
2648 | * machines, the data must be swapped by userland | |
2649 | * in advance. | |
2650 | */ | |
2651 | errno = sisusb_write_mem_bulk(sisusb, address, NULL, | |
2652 | count, buffer, 0, &bytes_written); | |
2653 | ||
2654 | if (bytes_written) | |
2655 | errno = bytes_written; | |
2656 | ||
2657 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE && | |
2658 | (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + SISUSB_PCI_PCONFSIZE) { | |
2659 | ||
2660 | if (count != 4) { | |
2661 | up(&sisusb->lock); | |
2662 | return -EINVAL; | |
2663 | } | |
2664 | ||
2665 | address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE; | |
2666 | ||
2667 | /* Write PCI config register. | |
2668 | * Given value expected in machine endianness. | |
2669 | */ | |
2670 | if (get_user(buf32, (u32 __user *)buffer)) | |
2671 | errno = -EFAULT; | |
2672 | else if (sisusb_write_pci_config(sisusb, address, buf32)) | |
2673 | errno = -EIO; | |
2674 | else | |
2675 | bytes_written = 4; | |
2676 | ||
2677 | ||
2678 | } else { | |
2679 | ||
2680 | /* Error */ | |
2681 | errno = -EBADFD; | |
2682 | ||
2683 | } | |
2684 | ||
2685 | (*ppos) += bytes_written; | |
2686 | ||
2687 | up(&sisusb->lock); | |
2688 | ||
2689 | return errno ? errno : bytes_written; | |
2690 | } | |
2691 | ||
2692 | static loff_t | |
2693 | sisusb_lseek(struct file *file, loff_t offset, int orig) | |
2694 | { | |
2695 | struct sisusb_usb_data *sisusb; | |
2696 | loff_t ret; | |
2697 | ||
2698 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) | |
2699 | return -ENODEV; | |
2700 | ||
2701 | down(&sisusb->lock); | |
2702 | ||
2703 | /* Sanity check */ | |
2704 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { | |
2705 | up(&sisusb->lock); | |
2706 | return -ENODEV; | |
2707 | } | |
2708 | ||
2709 | switch (orig) { | |
2710 | case 0: | |
2711 | file->f_pos = offset; | |
2712 | ret = file->f_pos; | |
2713 | /* never negative, no force_successful_syscall needed */ | |
2714 | break; | |
2715 | case 1: | |
2716 | file->f_pos += offset; | |
2717 | ret = file->f_pos; | |
2718 | /* never negative, no force_successful_syscall needed */ | |
2719 | break; | |
2720 | default: | |
2721 | /* seeking relative to "end of file" is not supported */ | |
2722 | ret = -EINVAL; | |
2723 | } | |
2724 | ||
2725 | up(&sisusb->lock); | |
2726 | return ret; | |
2727 | } | |
2728 | ||
2729 | static int | |
2730 | sisusb_handle_command(struct sisusb_usb_data *sisusb, struct sisusb_command *y, | |
2731 | unsigned long arg) | |
2732 | { | |
2733 | int retval, port, length; | |
2734 | u32 address; | |
2735 | ||
2736 | port = y->data3 - | |
2737 | SISUSB_PCI_PSEUDO_IOPORTBASE + | |
2738 | SISUSB_PCI_IOPORTBASE; | |
2739 | ||
2740 | switch (y->operation) { | |
2741 | case SUCMD_GET: | |
2742 | retval = sisusb_getidxreg(sisusb, port, | |
2743 | y->data0, &y->data1); | |
2744 | if (!retval) { | |
2745 | if (copy_to_user((void __user *)arg, y, | |
2746 | sizeof(*y))) | |
2747 | retval = -EFAULT; | |
2748 | } | |
2749 | break; | |
2750 | ||
2751 | case SUCMD_SET: | |
2752 | retval = sisusb_setidxreg(sisusb, port, | |
2753 | y->data0, y->data1); | |
2754 | break; | |
2755 | ||
2756 | case SUCMD_SETOR: | |
2757 | retval = sisusb_setidxregor(sisusb, port, | |
2758 | y->data0, y->data1); | |
2759 | break; | |
2760 | ||
2761 | case SUCMD_SETAND: | |
2762 | retval = sisusb_setidxregand(sisusb, port, | |
2763 | y->data0, y->data1); | |
2764 | break; | |
2765 | ||
2766 | case SUCMD_SETANDOR: | |
2767 | retval = sisusb_setidxregandor(sisusb, port, | |
2768 | y->data0, y->data1, y->data2); | |
2769 | break; | |
2770 | ||
2771 | case SUCMD_SETMASK: | |
2772 | retval = sisusb_setidxregmask(sisusb, port, | |
2773 | y->data0, y->data1, y->data2); | |
2774 | break; | |
2775 | ||
2776 | case SUCMD_CLRSCR: | |
2777 | length = (y->data0 << 16) | (y->data1 << 8) | y->data2; | |
2778 | address = y->data3 - | |
2779 | SISUSB_PCI_PSEUDO_MEMBASE + | |
2780 | SISUSB_PCI_MEMBASE; | |
2781 | retval = sisusb_clear_vram(sisusb, address, length); | |
2782 | break; | |
2783 | ||
2784 | default: | |
2785 | retval = -EINVAL; | |
2786 | } | |
2787 | ||
2788 | if(retval > 0) | |
2789 | retval = -EIO; | |
2790 | ||
2791 | return retval; | |
2792 | } | |
2793 | ||
2794 | static int | |
2795 | sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, | |
2796 | unsigned long arg) | |
2797 | { | |
2798 | struct sisusb_usb_data *sisusb; | |
2799 | struct sisusb_info x; | |
2800 | struct sisusb_command y; | |
2801 | int retval = 0; | |
2802 | u32 __user *argp = (u32 __user *)arg; | |
2803 | ||
2804 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) | |
2805 | return -ENODEV; | |
2806 | ||
2807 | down(&sisusb->lock); | |
2808 | ||
2809 | /* Sanity check */ | |
2810 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { | |
2811 | retval = -ENODEV; | |
2812 | goto err_out; | |
2813 | } | |
2814 | ||
2815 | switch (cmd) { | |
2816 | ||
2817 | case SISUSB_GET_CONFIG_SIZE: | |
2818 | ||
2819 | if (put_user(sizeof(x), argp)) | |
2820 | retval = -EFAULT; | |
2821 | ||
2822 | break; | |
2823 | ||
2824 | case SISUSB_GET_CONFIG: | |
2825 | ||
2826 | x.sisusb_id = SISUSB_ID; | |
2827 | x.sisusb_version = SISUSB_VERSION; | |
2828 | x.sisusb_revision = SISUSB_REVISION; | |
2829 | x.sisusb_patchlevel = SISUSB_PATCHLEVEL; | |
2830 | x.sisusb_gfxinit = sisusb->gfxinit; | |
2831 | x.sisusb_vrambase = SISUSB_PCI_PSEUDO_MEMBASE; | |
2832 | x.sisusb_mmiobase = SISUSB_PCI_PSEUDO_MMIOBASE; | |
2833 | x.sisusb_iobase = SISUSB_PCI_PSEUDO_IOPORTBASE; | |
2834 | x.sisusb_pcibase = SISUSB_PCI_PSEUDO_PCIBASE; | |
2835 | x.sisusb_vramsize = sisusb->vramsize; | |
2836 | x.sisusb_minor = sisusb->minor; | |
2837 | x.sisusb_fbdevactive= 0; | |
2838 | ||
2839 | if (copy_to_user((void __user *)arg, &x, sizeof(x))) | |
2840 | retval = -EFAULT; | |
2841 | ||
2842 | break; | |
2843 | ||
2844 | case SISUSB_COMMAND: | |
2845 | ||
2846 | if (copy_from_user(&y, (void __user *)arg, sizeof(y))) | |
2847 | retval = -EFAULT; | |
2848 | else | |
2849 | retval = sisusb_handle_command(sisusb, &y, arg); | |
2850 | ||
2851 | break; | |
2852 | ||
2853 | default: | |
2854 | retval = -EINVAL; | |
2855 | break; | |
2856 | } | |
2857 | ||
2858 | err_out: | |
2859 | up(&sisusb->lock); | |
2860 | return retval; | |
2861 | } | |
2862 | ||
2863 | #ifdef SISUSB_NEW_CONFIG_COMPAT | |
2864 | static long | |
2865 | sisusb_compat_ioctl(struct file *f, unsigned int cmd, unsigned long arg) | |
2866 | { | |
2867 | long retval; | |
2868 | ||
2869 | switch (cmd) { | |
2870 | case SISUSB_GET_CONFIG_SIZE: | |
2871 | case SISUSB_GET_CONFIG: | |
2872 | case SISUSB_COMMAND: | |
2873 | lock_kernel(); | |
2874 | retval = sisusb_ioctl(f->f_dentry->d_inode, f, cmd, arg); | |
2875 | unlock_kernel(); | |
2876 | return retval; | |
2877 | ||
2878 | default: | |
2879 | return -ENOIOCTLCMD; | |
2880 | } | |
2881 | } | |
2882 | #endif | |
2883 | ||
2884 | static struct file_operations usb_sisusb_fops = { | |
2885 | .owner = THIS_MODULE, | |
2886 | .open = sisusb_open, | |
2887 | .release = sisusb_release, | |
2888 | .read = sisusb_read, | |
2889 | .write = sisusb_write, | |
2890 | .llseek = sisusb_lseek, | |
2891 | #ifdef SISUSB_NEW_CONFIG_COMPAT | |
2892 | .compat_ioctl = sisusb_compat_ioctl, | |
2893 | #endif | |
2894 | .ioctl = sisusb_ioctl | |
2895 | }; | |
2896 | ||
2897 | static struct usb_class_driver usb_sisusb_class = { | |
2898 | .name = "usb/sisusbvga%d", | |
2899 | .fops = &usb_sisusb_fops, | |
2900 | .mode = S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP, | |
2901 | .minor_base = SISUSB_MINOR | |
2902 | }; | |
2903 | ||
2904 | static int sisusb_probe(struct usb_interface *intf, | |
2905 | const struct usb_device_id *id) | |
2906 | { | |
2907 | struct usb_device *dev = interface_to_usbdev(intf); | |
2908 | struct sisusb_usb_data *sisusb; | |
2909 | int retval = 0, i; | |
2910 | const char *memfail = | |
2911 | KERN_ERR | |
2912 | "sisusbvga[%d]: Failed to allocate memory for %s buffer\n"; | |
2913 | ||
2914 | printk(KERN_INFO "sisusb: USB2VGA dongle found at address %d\n", | |
2915 | dev->devnum); | |
2916 | ||
2917 | /* Allocate memory for our private */ | |
2918 | if (!(sisusb = kmalloc(sizeof(*sisusb), GFP_KERNEL))) { | |
2919 | printk(KERN_ERR | |
2920 | "sisusb: Failed to allocate memory for private data\n"); | |
2921 | return -ENOMEM; | |
2922 | } | |
2923 | memset(sisusb, 0, sizeof(*sisusb)); | |
2924 | kref_init(&sisusb->kref); | |
2925 | ||
2926 | init_MUTEX(&(sisusb->lock)); | |
2927 | ||
2928 | /* Register device */ | |
2929 | if ((retval = usb_register_dev(intf, &usb_sisusb_class))) { | |
2930 | printk(KERN_ERR | |
2931 | "sisusb: Failed to get a minor for device %d\n", | |
2932 | dev->devnum); | |
2933 | retval = -ENODEV; | |
2934 | goto error_1; | |
2935 | } | |
2936 | ||
2937 | sisusb->sisusb_dev = dev; | |
2938 | sisusb->minor = intf->minor; | |
2939 | sisusb->vrambase = SISUSB_PCI_MEMBASE; | |
2940 | sisusb->mmiobase = SISUSB_PCI_MMIOBASE; | |
2941 | sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; | |
2942 | sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; | |
2943 | /* Everything else is zero */ | |
2944 | ||
2945 | /* Allocate buffers */ | |
2946 | sisusb->ibufsize = SISUSB_IBUF_SIZE; | |
2947 | if (!(sisusb->ibuf = usb_buffer_alloc(dev, SISUSB_IBUF_SIZE, | |
2948 | GFP_KERNEL, &sisusb->transfer_dma_in))) { | |
2949 | printk(memfail, "input", sisusb->minor); | |
2950 | retval = -ENOMEM; | |
2951 | goto error_2; | |
2952 | } | |
2953 | ||
2954 | sisusb->numobufs = 0; | |
2955 | sisusb->obufsize = SISUSB_OBUF_SIZE; | |
2956 | for (i = 0; i < NUMOBUFS; i++) { | |
2957 | if (!(sisusb->obuf[i] = usb_buffer_alloc(dev, SISUSB_OBUF_SIZE, | |
2958 | GFP_KERNEL, | |
2959 | &sisusb->transfer_dma_out[i]))) { | |
2960 | if (i == 0) { | |
2961 | printk(memfail, "output", sisusb->minor); | |
2962 | retval = -ENOMEM; | |
2963 | goto error_3; | |
2964 | } | |
2965 | break; | |
2966 | } else | |
2967 | sisusb->numobufs++; | |
2968 | ||
2969 | } | |
2970 | ||
2971 | /* Allocate URBs */ | |
2972 | if (!(sisusb->sisurbin = usb_alloc_urb(0, GFP_KERNEL))) { | |
2973 | printk(KERN_ERR | |
2974 | "sisusbvga[%d]: Failed to allocate URBs\n", | |
2975 | sisusb->minor); | |
2976 | retval = -ENOMEM; | |
2977 | goto error_3; | |
2978 | } | |
2979 | sisusb->completein = 1; | |
2980 | ||
2981 | for (i = 0; i < sisusb->numobufs; i++) { | |
2982 | if (!(sisusb->sisurbout[i] = usb_alloc_urb(0, GFP_KERNEL))) { | |
2983 | printk(KERN_ERR | |
2984 | "sisusbvga[%d]: Failed to allocate URBs\n", | |
2985 | sisusb->minor); | |
2986 | retval = -ENOMEM; | |
2987 | goto error_4; | |
2988 | } | |
2989 | sisusb->urbout_context[i].sisusb = (void *)sisusb; | |
2990 | sisusb->urbout_context[i].urbindex = i; | |
2991 | sisusb->urbstatus[i] = 0; | |
2992 | } | |
2993 | ||
2994 | printk(KERN_INFO "sisusbvga[%d]: Allocated %d output buffers\n", | |
2995 | sisusb->minor, sisusb->numobufs); | |
2996 | ||
2997 | /* Do remaining init stuff */ | |
2998 | ||
2999 | init_waitqueue_head(&sisusb->wait_q); | |
3000 | ||
3001 | usb_set_intfdata(intf, sisusb); | |
3002 | ||
3003 | #ifdef SISUSB_OLD_CONFIG_COMPAT | |
3004 | { | |
3005 | int ret; | |
3006 | /* Our ioctls are all "32/64bit compatible" */ | |
3007 | ret = register_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE, NULL); | |
3008 | ret |= register_ioctl32_conversion(SISUSB_GET_CONFIG, NULL); | |
3009 | ret |= register_ioctl32_conversion(SISUSB_COMMAND, NULL); | |
3010 | if (ret) | |
3011 | printk(KERN_ERR | |
3012 | "sisusbvga[%d]: Error registering ioctl32 " | |
3013 | "translations\n", | |
3014 | sisusb->minor); | |
3015 | else | |
3016 | sisusb->ioctl32registered = 1; | |
3017 | ||
3018 | } | |
3019 | #endif | |
3020 | ||
3021 | sisusb->present = 1; | |
3022 | ||
3023 | if (dev->speed == USB_SPEED_HIGH) { | |
3024 | if (sisusb_init_gfxdevice(sisusb, 1)) | |
3025 | printk(KERN_ERR | |
3026 | "sisusbvga[%d]: Failed to early " | |
3027 | "initialize device\n", | |
3028 | sisusb->minor); | |
3029 | ||
3030 | } else | |
3031 | printk(KERN_INFO | |
3032 | "sisusbvga[%d]: Not attached to USB 2.0 hub, " | |
3033 | "deferring init\n", | |
3034 | sisusb->minor); | |
3035 | ||
3036 | sisusb->ready = 1; | |
3037 | ||
3038 | return 0; | |
3039 | ||
3040 | error_4: | |
3041 | sisusb_free_urbs(sisusb); | |
3042 | error_3: | |
3043 | sisusb_free_buffers(sisusb); | |
3044 | error_2: | |
3045 | usb_deregister_dev(intf, &usb_sisusb_class); | |
3046 | error_1: | |
3047 | kfree(sisusb); | |
3048 | return retval; | |
3049 | } | |
3050 | ||
3051 | static void sisusb_disconnect(struct usb_interface *intf) | |
3052 | { | |
3053 | struct sisusb_usb_data *sisusb; | |
3054 | int minor; | |
3055 | ||
3056 | down(&disconnect_sem); | |
3057 | ||
3058 | /* This should *not* happen */ | |
3059 | if (!(sisusb = usb_get_intfdata(intf))) { | |
3060 | up(&disconnect_sem); | |
3061 | return; | |
3062 | } | |
3063 | ||
3064 | down(&sisusb->lock); | |
3065 | ||
3066 | /* Wait for all URBs to complete and kill them in case (MUST do) */ | |
3067 | if (!sisusb_wait_all_out_complete(sisusb)) | |
3068 | sisusb_kill_all_busy(sisusb); | |
3069 | ||
3070 | minor = sisusb->minor; | |
3071 | ||
3072 | usb_set_intfdata(intf, NULL); | |
3073 | ||
3074 | usb_deregister_dev(intf, &usb_sisusb_class); | |
3075 | ||
3076 | #ifdef SISUSB_OLD_CONFIG_COMPAT | |
3077 | if (sisusb->ioctl32registered) { | |
3078 | int ret; | |
3079 | sisusb->ioctl32registered = 0; | |
3080 | ret = unregister_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE); | |
3081 | ret |= unregister_ioctl32_conversion(SISUSB_GET_CONFIG); | |
3082 | ret |= unregister_ioctl32_conversion(SISUSB_COMMAND); | |
3083 | if (ret) { | |
3084 | printk(KERN_ERR | |
3085 | "sisusbvga[%d]: Error unregistering " | |
3086 | "ioctl32 translations\n", | |
3087 | minor); | |
3088 | } | |
3089 | } | |
3090 | #endif | |
3091 | ||
3092 | sisusb->present = 0; | |
3093 | sisusb->ready = 0; | |
3094 | ||
3095 | up(&sisusb->lock); | |
3096 | ||
3097 | /* decrement our usage count */ | |
3098 | kref_put(&sisusb->kref, sisusb_delete); | |
3099 | ||
3100 | up(&disconnect_sem); | |
3101 | ||
3102 | printk(KERN_INFO "sisusbvga[%d]: Disconnected\n", minor); | |
3103 | } | |
3104 | ||
3105 | static struct usb_device_id sisusb_table [] = { | |
3106 | { USB_DEVICE(0x0711, 0x0900) }, | |
7ab7c34c | 3107 | { USB_DEVICE(0x182d, 0x021c) }, |
cef11127 | 3108 | { USB_DEVICE(0x182d, 0x0269) }, |
1da177e4 LT |
3109 | { } |
3110 | }; | |
3111 | ||
3112 | MODULE_DEVICE_TABLE (usb, sisusb_table); | |
3113 | ||
3114 | static struct usb_driver sisusb_driver = { | |
3115 | .owner = THIS_MODULE, | |
3116 | .name = "sisusb", | |
3117 | .probe = sisusb_probe, | |
3118 | .disconnect = sisusb_disconnect, | |
7ab7c34c | 3119 | .id_table = sisusb_table, |
1da177e4 LT |
3120 | }; |
3121 | ||
3122 | static int __init usb_sisusb_init(void) | |
3123 | { | |
3124 | int retval; | |
3125 | ||
3126 | if (!(retval = usb_register(&sisusb_driver))) { | |
3127 | printk(KERN_INFO "sisusb: Driver version %d.%d.%d\n", | |
3128 | SISUSB_VERSION, SISUSB_REVISION, SISUSB_PATCHLEVEL); | |
3129 | printk(KERN_INFO | |
3130 | "sisusb: Copyright (C) 2005 Thomas Winischhofer\n"); | |
3131 | } | |
3132 | ||
3133 | return retval; | |
3134 | } | |
3135 | ||
3136 | static void __exit usb_sisusb_exit(void) | |
3137 | { | |
3138 | usb_deregister(&sisusb_driver); | |
3139 | } | |
3140 | ||
3141 | module_init(usb_sisusb_init); | |
3142 | module_exit(usb_sisusb_exit); | |
3143 | ||
3144 | MODULE_AUTHOR("Thomas Winischhofer <thomas@winischhofer.net>"); | |
3145 | MODULE_DESCRIPTION("sisusb - Driver for Net2280/SiS315-based USB2VGA dongles"); | |
3146 | MODULE_LICENSE("GPL"); | |
3147 |