Commit | Line | Data |
---|---|---|
781aa1d1 | 1 | /* |
483dfdb6 | 2 | * usbvision-core.c - driver for NT100x USB video capture devices |
7ca659e3 | 3 | * |
781aa1d1 MCC |
4 | * |
5 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> | |
483dfdb6 | 6 | * Dwaine Garden <dwainegarden@rogers.com> |
781aa1d1 MCC |
7 | * |
8 | * This module is part of usbvision driver project. | |
483dfdb6 | 9 | * Updates to driver completed by Dwaine P. Garden |
781aa1d1 MCC |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
781aa1d1 MCC |
24 | */ |
25 | ||
26 | #include <linux/kernel.h> | |
781aa1d1 MCC |
27 | #include <linux/list.h> |
28 | #include <linux/timer.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/mm.h> | |
31 | #include <linux/utsname.h> | |
32 | #include <linux/highmem.h> | |
33 | #include <linux/smp_lock.h> | |
34 | #include <linux/videodev.h> | |
35 | #include <linux/vmalloc.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/spinlock.h> | |
781aa1d1 MCC |
39 | #include <asm/io.h> |
40 | #include <linux/videodev2.h> | |
41 | #include <linux/video_decoder.h> | |
42 | #include <linux/i2c.h> | |
781aa1d1 | 43 | |
18d8a454 DG |
44 | #include <media/saa7115.h> |
45 | #include <media/v4l2-common.h> | |
781aa1d1 MCC |
46 | #include <media/tuner.h> |
47 | #include <media/audiochip.h> | |
48 | ||
a1ed551c MCC |
49 | #include <linux/moduleparam.h> |
50 | #include <linux/workqueue.h> | |
781aa1d1 MCC |
51 | |
52 | #ifdef CONFIG_KMOD | |
53 | #include <linux/kmod.h> | |
54 | #endif | |
55 | ||
56 | #include "usbvision.h" | |
781aa1d1 | 57 | |
483dfdb6 TM |
58 | static unsigned int core_debug = 0; |
59 | module_param(core_debug,int,0644); | |
60 | MODULE_PARM_DESC(core_debug,"enable debug messages [core]"); | |
781aa1d1 | 61 | |
483dfdb6 TM |
62 | static unsigned int force_testpattern = 0; |
63 | module_param(force_testpattern,int,0644); | |
64 | MODULE_PARM_DESC(force_testpattern,"enable test pattern display [core]"); | |
65 | ||
66 | static int adjustCompression = 1; // Set the compression to be adaptive | |
67 | module_param(adjustCompression, int, 0444); | |
68 | MODULE_PARM_DESC(adjustCompression, " Set the ADPCM compression for the device. Default: 1 (On)"); | |
69 | ||
70 | static int SwitchSVideoInput = 0; // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. | |
71 | module_param(SwitchSVideoInput, int, 0444); | |
72 | MODULE_PARM_DESC(SwitchSVideoInput, " Set the S-Video input. Some cables and input device are wired differently. Default: 0 (Off)"); | |
781aa1d1 | 73 | |
483dfdb6 | 74 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ |
781aa1d1 | 75 | |
781aa1d1 MCC |
76 | |
77 | #ifdef USBVISION_DEBUG | |
78 | #define PDEBUG(level, fmt, args...) \ | |
483dfdb6 | 79 | if (core_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) |
781aa1d1 MCC |
80 | #else |
81 | #define PDEBUG(level, fmt, args...) do {} while(0) | |
82 | #endif | |
83 | ||
483dfdb6 TM |
84 | #define DBG_HEADER 1<<0 |
85 | #define DBG_IRQ 1<<1 | |
86 | #define DBG_ISOC 1<<2 | |
87 | #define DBG_PARSE 1<<3 | |
88 | #define DBG_SCRATCH 1<<4 | |
c876a346 | 89 | #define DBG_FUNC 1<<5 |
781aa1d1 MCC |
90 | |
91 | static const int max_imgwidth = MAX_FRAME_WIDTH; | |
92 | static const int max_imgheight = MAX_FRAME_HEIGHT; | |
93 | static const int min_imgwidth = MIN_FRAME_WIDTH; | |
94 | static const int min_imgheight = MIN_FRAME_HEIGHT; | |
95 | ||
483dfdb6 | 96 | /* The value of 'scratch_buf_size' affects quality of the picture |
781aa1d1 MCC |
97 | * in many ways. Shorter buffers may cause loss of data when client |
98 | * is too slow. Larger buffers are memory-consuming and take longer | |
99 | * to work with. This setting can be adjusted, but the default value | |
100 | * should be OK for most desktop users. | |
101 | */ | |
102 | #define DEFAULT_SCRATCH_BUF_SIZE (0x20000) // 128kB memory scratch buffer | |
103 | static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE; | |
104 | ||
781aa1d1 | 105 | // Function prototypes |
781aa1d1 MCC |
106 | static int usbvision_request_intra (struct usb_usbvision *usbvision); |
107 | static int usbvision_unrequest_intra (struct usb_usbvision *usbvision); | |
108 | static int usbvision_adjust_compression (struct usb_usbvision *usbvision); | |
109 | static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision); | |
781aa1d1 MCC |
110 | |
111 | /*******************************/ | |
112 | /* Memory management functions */ | |
113 | /*******************************/ | |
114 | ||
115 | /* | |
116 | * Here we want the physical address of the memory. | |
117 | * This is used when initializing the contents of the area. | |
118 | */ | |
119 | ||
0a0ceade | 120 | static void *usbvision_rvmalloc(unsigned long size) |
781aa1d1 MCC |
121 | { |
122 | void *mem; | |
123 | unsigned long adr; | |
124 | ||
125 | size = PAGE_ALIGN(size); | |
126 | mem = vmalloc_32(size); | |
127 | if (!mem) | |
128 | return NULL; | |
129 | ||
130 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
483dfdb6 TM |
131 | adr = (unsigned long) mem; |
132 | while (size > 0) { | |
133 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
134 | adr += PAGE_SIZE; | |
135 | size -= PAGE_SIZE; | |
136 | } | |
137 | ||
138 | return mem; | |
781aa1d1 MCC |
139 | } |
140 | ||
141 | void usbvision_rvfree(void *mem, unsigned long size) | |
142 | { | |
483dfdb6 TM |
143 | unsigned long adr; |
144 | ||
145 | if (!mem) | |
146 | return; | |
781aa1d1 | 147 | |
483dfdb6 | 148 | size = PAGE_ALIGN(size); |
781aa1d1 | 149 | |
483dfdb6 TM |
150 | adr = (unsigned long) mem; |
151 | while ((long) size > 0) { | |
152 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
153 | adr += PAGE_SIZE; | |
154 | size -= PAGE_SIZE; | |
155 | } | |
781aa1d1 | 156 | |
483dfdb6 TM |
157 | vfree(mem); |
158 | } | |
781aa1d1 MCC |
159 | |
160 | ||
161 | ||
162 | #if ENABLE_HEXDUMP | |
163 | static void usbvision_hexdump(const unsigned char *data, int len) | |
164 | { | |
483dfdb6 TM |
165 | char tmp[80]; |
166 | int i, k; | |
167 | ||
168 | for (i = k = 0; len > 0; i++, len--) { | |
169 | if (i > 0 && (i % 16 == 0)) { | |
170 | printk("%s\n", tmp); | |
171 | k = 0; | |
172 | } | |
173 | k += sprintf(&tmp[k], "%02x ", data[i]); | |
174 | } | |
175 | if (k > 0) | |
176 | printk("%s\n", tmp); | |
781aa1d1 MCC |
177 | } |
178 | #endif | |
179 | ||
483dfdb6 TM |
180 | /******************************** |
181 | * scratch ring buffer handling | |
182 | ********************************/ | |
0a0ceade | 183 | static int scratch_len(struct usb_usbvision *usbvision) /*This returns the amount of data actually in the buffer */ |
781aa1d1 MCC |
184 | { |
185 | int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr; | |
186 | if (len < 0) { | |
187 | len += scratch_buf_size; | |
188 | } | |
189 | PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len); | |
190 | ||
191 | return len; | |
192 | } | |
193 | ||
194 | ||
195 | /* This returns the free space left in the buffer */ | |
0a0ceade | 196 | static int scratch_free(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
197 | { |
198 | int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr; | |
199 | if (free <= 0) { | |
200 | free += scratch_buf_size; | |
201 | } | |
202 | if (free) { | |
203 | free -= 1; /* at least one byte in the buffer must */ | |
204 | /* left blank, otherwise there is no chance to differ between full and empty */ | |
205 | } | |
206 | PDEBUG(DBG_SCRATCH, "return %d\n", free); | |
207 | ||
208 | return free; | |
209 | } | |
210 | ||
211 | ||
781aa1d1 | 212 | /* This puts data into the buffer */ |
0a0ceade AB |
213 | static int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, |
214 | int len) | |
781aa1d1 MCC |
215 | { |
216 | int len_part; | |
217 | ||
218 | if (usbvision->scratch_write_ptr + len < scratch_buf_size) { | |
219 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len); | |
220 | usbvision->scratch_write_ptr += len; | |
221 | } | |
222 | else { | |
223 | len_part = scratch_buf_size - usbvision->scratch_write_ptr; | |
224 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part); | |
225 | if (len == len_part) { | |
226 | usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */ | |
227 | } | |
228 | else { | |
229 | memcpy(usbvision->scratch, data + len_part, len - len_part); | |
230 | usbvision->scratch_write_ptr = len - len_part; | |
231 | } | |
232 | } | |
233 | ||
234 | PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr); | |
235 | ||
236 | return len; | |
237 | } | |
238 | ||
239 | /* This marks the write_ptr as position of new frame header */ | |
0a0ceade | 240 | static void scratch_mark_header(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
241 | { |
242 | PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr); | |
243 | ||
244 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] = | |
245 | usbvision->scratch_write_ptr; | |
246 | usbvision->scratch_headermarker_write_ptr += 1; | |
247 | usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER; | |
248 | } | |
249 | ||
250 | /* This gets data from the buffer at the given "ptr" position */ | |
0a0ceade AB |
251 | static int scratch_get_extra(struct usb_usbvision *usbvision, |
252 | unsigned char *data, int *ptr, int len) | |
781aa1d1 MCC |
253 | { |
254 | int len_part; | |
255 | if (*ptr + len < scratch_buf_size) { | |
256 | memcpy(data, usbvision->scratch + *ptr, len); | |
257 | *ptr += len; | |
258 | } | |
259 | else { | |
260 | len_part = scratch_buf_size - *ptr; | |
261 | memcpy(data, usbvision->scratch + *ptr, len_part); | |
262 | if (len == len_part) { | |
263 | *ptr = 0; /* just set the y_ptr to zero */ | |
264 | } | |
265 | else { | |
266 | memcpy(data + len_part, usbvision->scratch, len - len_part); | |
267 | *ptr = len - len_part; | |
268 | } | |
269 | } | |
270 | ||
271 | PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr); | |
272 | ||
273 | return len; | |
274 | } | |
275 | ||
276 | ||
277 | /* This sets the scratch extra read pointer */ | |
0a0ceade AB |
278 | static void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, |
279 | int len) | |
781aa1d1 MCC |
280 | { |
281 | *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size; | |
282 | ||
283 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); | |
284 | } | |
285 | ||
286 | ||
287 | /*This increments the scratch extra read pointer */ | |
0a0ceade | 288 | static void scratch_inc_extra_ptr(int *ptr, int len) |
781aa1d1 MCC |
289 | { |
290 | *ptr = (*ptr + len) % scratch_buf_size; | |
291 | ||
292 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); | |
293 | } | |
294 | ||
295 | ||
296 | /* This gets data from the buffer */ | |
0a0ceade AB |
297 | static int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, |
298 | int len) | |
781aa1d1 MCC |
299 | { |
300 | int len_part; | |
301 | if (usbvision->scratch_read_ptr + len < scratch_buf_size) { | |
302 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len); | |
303 | usbvision->scratch_read_ptr += len; | |
304 | } | |
305 | else { | |
306 | len_part = scratch_buf_size - usbvision->scratch_read_ptr; | |
307 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part); | |
308 | if (len == len_part) { | |
309 | usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */ | |
310 | } | |
311 | else { | |
312 | memcpy(data + len_part, usbvision->scratch, len - len_part); | |
313 | usbvision->scratch_read_ptr = len - len_part; | |
314 | } | |
315 | } | |
316 | ||
317 | PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr); | |
318 | ||
319 | return len; | |
320 | } | |
321 | ||
322 | ||
323 | /* This sets read pointer to next header and returns it */ | |
0a0ceade AB |
324 | static int scratch_get_header(struct usb_usbvision *usbvision, |
325 | struct usbvision_frame_header *header) | |
781aa1d1 MCC |
326 | { |
327 | int errCode = 0; | |
328 | ||
329 | PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr); | |
330 | ||
331 | while (usbvision->scratch_headermarker_write_ptr - | |
332 | usbvision->scratch_headermarker_read_ptr != 0) { | |
333 | usbvision->scratch_read_ptr = | |
334 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr]; | |
335 | usbvision->scratch_headermarker_read_ptr += 1; | |
336 | usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER; | |
337 | scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH); | |
338 | if ((header->magic_1 == USBVISION_MAGIC_1) | |
339 | && (header->magic_2 == USBVISION_MAGIC_2) | |
340 | && (header->headerLength == USBVISION_HEADER_LENGTH)) { | |
341 | errCode = USBVISION_HEADER_LENGTH; | |
342 | header->frameWidth = header->frameWidthLo + (header->frameWidthHi << 8); | |
343 | header->frameHeight = header->frameHeightLo + (header->frameHeightHi << 8); | |
344 | break; | |
345 | } | |
346 | } | |
347 | ||
348 | return errCode; | |
349 | } | |
350 | ||
351 | ||
352 | /*This removes len bytes of old data from the buffer */ | |
0a0ceade | 353 | static void scratch_rm_old(struct usb_usbvision *usbvision, int len) |
781aa1d1 MCC |
354 | { |
355 | ||
356 | usbvision->scratch_read_ptr += len; | |
357 | usbvision->scratch_read_ptr %= scratch_buf_size; | |
358 | PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr); | |
359 | } | |
360 | ||
361 | ||
362 | /*This resets the buffer - kills all data in it too */ | |
0a0ceade | 363 | static void scratch_reset(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
364 | { |
365 | PDEBUG(DBG_SCRATCH, "\n"); | |
366 | ||
367 | usbvision->scratch_read_ptr = 0; | |
368 | usbvision->scratch_write_ptr = 0; | |
369 | usbvision->scratch_headermarker_read_ptr = 0; | |
370 | usbvision->scratch_headermarker_write_ptr = 0; | |
371 | usbvision->isocstate = IsocState_NoFrame; | |
372 | } | |
373 | ||
483dfdb6 | 374 | int usbvision_scratch_alloc(struct usb_usbvision *usbvision) |
781aa1d1 | 375 | { |
38284ba3 | 376 | usbvision->scratch = vmalloc_32(scratch_buf_size); |
483dfdb6 TM |
377 | scratch_reset(usbvision); |
378 | if(usbvision->scratch == NULL) { | |
379 | err("%s: unable to allocate %d bytes for scratch", | |
380 | __FUNCTION__, scratch_buf_size); | |
381 | return -ENOMEM; | |
781aa1d1 | 382 | } |
483dfdb6 | 383 | return 0; |
781aa1d1 MCC |
384 | } |
385 | ||
483dfdb6 | 386 | void usbvision_scratch_free(struct usb_usbvision *usbvision) |
781aa1d1 | 387 | { |
483dfdb6 TM |
388 | if (usbvision->scratch != NULL) { |
389 | vfree(usbvision->scratch); | |
390 | usbvision->scratch = NULL; | |
781aa1d1 MCC |
391 | } |
392 | } | |
393 | ||
781aa1d1 MCC |
394 | /* |
395 | * usbvision_testpattern() | |
396 | * | |
397 | * Procedure forms a test pattern (yellow grid on blue background). | |
398 | * | |
399 | * Parameters: | |
400 | * fullframe: if TRUE then entire frame is filled, otherwise the procedure | |
18d8a454 | 401 | * continues from the current scanline. |
781aa1d1 | 402 | * pmode 0: fill the frame with solid blue color (like on VCR or TV) |
18d8a454 | 403 | * 1: Draw a colored grid |
781aa1d1 MCC |
404 | * |
405 | */ | |
0a0ceade AB |
406 | static void usbvision_testpattern(struct usb_usbvision *usbvision, |
407 | int fullframe, int pmode) | |
781aa1d1 MCC |
408 | { |
409 | static const char proc[] = "usbvision_testpattern"; | |
410 | struct usbvision_frame *frame; | |
411 | unsigned char *f; | |
412 | int num_cell = 0; | |
413 | int scan_length = 0; | |
414 | static int num_pass = 0; | |
415 | ||
416 | if (usbvision == NULL) { | |
417 | printk(KERN_ERR "%s: usbvision == NULL\n", proc); | |
418 | return; | |
419 | } | |
f2242ee5 TM |
420 | if (usbvision->curFrame == NULL) { |
421 | printk(KERN_ERR "%s: usbvision->curFrame is NULL.\n", proc); | |
781aa1d1 MCC |
422 | return; |
423 | } | |
424 | ||
425 | /* Grab the current frame */ | |
f2242ee5 | 426 | frame = usbvision->curFrame; |
781aa1d1 MCC |
427 | |
428 | /* Optionally start at the beginning */ | |
429 | if (fullframe) { | |
430 | frame->curline = 0; | |
431 | frame->scanlength = 0; | |
432 | } | |
433 | ||
434 | /* Form every scan line */ | |
435 | for (; frame->curline < frame->frmheight; frame->curline++) { | |
436 | int i; | |
437 | ||
438 | f = frame->data + (usbvision->curwidth * 3 * frame->curline); | |
439 | for (i = 0; i < usbvision->curwidth; i++) { | |
440 | unsigned char cb = 0x80; | |
441 | unsigned char cg = 0; | |
442 | unsigned char cr = 0; | |
443 | ||
444 | if (pmode == 1) { | |
445 | if (frame->curline % 32 == 0) | |
446 | cb = 0, cg = cr = 0xFF; | |
447 | else if (i % 32 == 0) { | |
448 | if (frame->curline % 32 == 1) | |
449 | num_cell++; | |
450 | cb = 0, cg = cr = 0xFF; | |
451 | } else { | |
452 | cb = | |
453 | ((num_cell * 7) + | |
454 | num_pass) & 0xFF; | |
455 | cg = | |
456 | ((num_cell * 5) + | |
457 | num_pass * 2) & 0xFF; | |
458 | cr = | |
459 | ((num_cell * 3) + | |
460 | num_pass * 3) & 0xFF; | |
461 | } | |
462 | } else { | |
463 | /* Just the blue screen */ | |
464 | } | |
465 | ||
466 | *f++ = cb; | |
467 | *f++ = cg; | |
468 | *f++ = cr; | |
469 | scan_length += 3; | |
470 | } | |
471 | } | |
472 | ||
473 | frame->grabstate = FrameState_Done; | |
474 | frame->scanlength += scan_length; | |
475 | ++num_pass; | |
476 | ||
781aa1d1 MCC |
477 | } |
478 | ||
479 | /* | |
483dfdb6 TM |
480 | * usbvision_decompress_alloc() |
481 | * | |
482 | * allocates intermediate buffer for decompression | |
781aa1d1 | 483 | */ |
483dfdb6 TM |
484 | int usbvision_decompress_alloc(struct usb_usbvision *usbvision) |
485 | { | |
486 | int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2; | |
38284ba3 | 487 | usbvision->IntraFrameBuffer = vmalloc_32(IFB_size); |
483dfdb6 TM |
488 | if (usbvision->IntraFrameBuffer == NULL) { |
489 | err("%s: unable to allocate %d for compr. frame buffer", __FUNCTION__, IFB_size); | |
490 | return -ENOMEM; | |
491 | } | |
492 | return 0; | |
493 | } | |
494 | ||
495 | /* | |
496 | * usbvision_decompress_free() | |
497 | * | |
498 | * frees intermediate buffer for decompression | |
499 | */ | |
500 | void usbvision_decompress_free(struct usb_usbvision *usbvision) | |
501 | { | |
502 | if (usbvision->IntraFrameBuffer != NULL) { | |
503 | vfree(usbvision->IntraFrameBuffer); | |
504 | usbvision->IntraFrameBuffer = NULL; | |
505 | } | |
506 | } | |
507 | ||
508 | /************************************************************ | |
509 | * Here comes the data parsing stuff that is run as interrupt | |
510 | ************************************************************/ | |
781aa1d1 MCC |
511 | /* |
512 | * usbvision_find_header() | |
513 | * | |
514 | * Locate one of supported header markers in the scratch buffer. | |
515 | */ | |
516 | static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision) | |
517 | { | |
518 | struct usbvision_frame *frame; | |
519 | int foundHeader = 0; | |
520 | ||
483dfdb6 | 521 | frame = usbvision->curFrame; |
781aa1d1 MCC |
522 | |
523 | while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) { | |
524 | // found header in scratch | |
525 | PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u", | |
526 | frame->isocHeader.magic_2, | |
527 | frame->isocHeader.magic_1, | |
528 | frame->isocHeader.headerLength, | |
529 | frame->isocHeader.frameNum, | |
530 | frame->isocHeader.framePhase, | |
531 | frame->isocHeader.frameLatency, | |
532 | frame->isocHeader.dataFormat, | |
533 | frame->isocHeader.formatParam, | |
534 | frame->isocHeader.frameWidth, | |
535 | frame->isocHeader.frameHeight); | |
536 | ||
537 | if (usbvision->requestIntra) { | |
538 | if (frame->isocHeader.formatParam & 0x80) { | |
539 | foundHeader = 1; | |
540 | usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time | |
541 | usbvision_unrequest_intra(usbvision); | |
542 | break; | |
543 | } | |
544 | } | |
545 | else { | |
546 | foundHeader = 1; | |
547 | break; | |
548 | } | |
549 | } | |
550 | ||
551 | if (foundHeader) { | |
552 | frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width; | |
553 | frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height; | |
554 | frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth)>> 3; | |
781aa1d1 MCC |
555 | } |
556 | else { // no header found | |
557 | PDEBUG(DBG_HEADER, "skipping scratch data, no header"); | |
558 | scratch_reset(usbvision); | |
559 | return ParseState_EndParse; | |
560 | } | |
561 | ||
562 | // found header | |
563 | if (frame->isocHeader.dataFormat==ISOC_MODE_COMPRESS) { | |
564 | //check isocHeader.frameNum for lost frames | |
565 | if (usbvision->lastIsocFrameNum >= 0) { | |
566 | if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) { | |
567 | // unexpected frame drop: need to request new intra frame | |
568 | PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isocHeader.frameNum); | |
569 | usbvision_request_intra(usbvision); | |
570 | return ParseState_NextFrame; | |
571 | } | |
572 | } | |
573 | usbvision->lastIsocFrameNum = frame->isocHeader.frameNum; | |
574 | } | |
575 | usbvision->header_count++; | |
576 | frame->scanstate = ScanState_Lines; | |
577 | frame->curline = 0; | |
578 | ||
483dfdb6 | 579 | if (force_testpattern) { |
781aa1d1 MCC |
580 | usbvision_testpattern(usbvision, 1, 1); |
581 | return ParseState_NextFrame; | |
582 | } | |
583 | return ParseState_Continue; | |
584 | } | |
585 | ||
586 | static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision, | |
587 | long *pcopylen) | |
588 | { | |
589 | volatile struct usbvision_frame *frame; | |
590 | unsigned char *f; | |
591 | int len; | |
592 | int i; | |
593 | unsigned char yuyv[4]={180, 128, 10, 128}; // YUV components | |
594 | unsigned char rv, gv, bv; // RGB components | |
595 | int clipmask_index, bytes_per_pixel; | |
781aa1d1 MCC |
596 | int stretch_bytes, clipmask_add; |
597 | ||
483dfdb6 TM |
598 | frame = usbvision->curFrame; |
599 | f = frame->data + (frame->v4l2_linesize * frame->curline); | |
781aa1d1 MCC |
600 | |
601 | /* Make sure there's enough data for the entire line */ | |
602 | len = (frame->isocHeader.frameWidth * 2)+5; | |
603 | if (scratch_len(usbvision) < len) { | |
604 | PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len); | |
605 | return ParseState_Out; | |
606 | } | |
607 | ||
608 | if ((frame->curline + 1) >= frame->frmheight) { | |
609 | return ParseState_NextFrame; | |
610 | } | |
611 | ||
612 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; | |
613 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; | |
614 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; | |
615 | clipmask_add = usbvision->stretch_width; | |
616 | ||
617 | for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) { | |
618 | ||
619 | scratch_get(usbvision, &yuyv[0], 4); | |
620 | ||
483dfdb6 | 621 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
622 | *f++ = yuyv[0]; // Y |
623 | *f++ = yuyv[3]; // U | |
624 | } | |
625 | else { | |
626 | ||
627 | YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv); | |
628 | switch (frame->v4l2_format.format) { | |
629 | case V4L2_PIX_FMT_RGB565: | |
630 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3)); | |
631 | *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv); | |
632 | break; | |
633 | case V4L2_PIX_FMT_RGB24: | |
634 | *f++ = bv; | |
635 | *f++ = gv; | |
636 | *f++ = rv; | |
637 | break; | |
638 | case V4L2_PIX_FMT_RGB32: | |
639 | *f++ = bv; | |
640 | *f++ = gv; | |
641 | *f++ = rv; | |
642 | f++; | |
643 | break; | |
644 | case V4L2_PIX_FMT_RGB555: | |
645 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2)); | |
646 | *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1)); | |
647 | break; | |
648 | } | |
649 | } | |
650 | clipmask_index += clipmask_add; | |
651 | f += stretch_bytes; | |
652 | ||
483dfdb6 | 653 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
654 | *f++ = yuyv[2]; // Y |
655 | *f++ = yuyv[1]; // V | |
656 | } | |
657 | else { | |
658 | ||
659 | YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv); | |
660 | switch (frame->v4l2_format.format) { | |
661 | case V4L2_PIX_FMT_RGB565: | |
662 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3)); | |
663 | *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv); | |
664 | break; | |
665 | case V4L2_PIX_FMT_RGB24: | |
666 | *f++ = bv; | |
667 | *f++ = gv; | |
668 | *f++ = rv; | |
669 | break; | |
670 | case V4L2_PIX_FMT_RGB32: | |
671 | *f++ = bv; | |
672 | *f++ = gv; | |
673 | *f++ = rv; | |
674 | f++; | |
675 | break; | |
676 | case V4L2_PIX_FMT_RGB555: | |
677 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2)); | |
678 | *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1)); | |
679 | break; | |
680 | } | |
681 | } | |
682 | clipmask_index += clipmask_add; | |
683 | f += stretch_bytes; | |
684 | } | |
685 | ||
686 | frame->curline += usbvision->stretch_height; | |
687 | *pcopylen += frame->v4l2_linesize * usbvision->stretch_height; | |
688 | ||
689 | if (frame->curline >= frame->frmheight) { | |
690 | return ParseState_NextFrame; | |
691 | } | |
692 | else { | |
693 | return ParseState_Continue; | |
694 | } | |
695 | } | |
696 | ||
483dfdb6 | 697 | /* The decompression routine */ |
781aa1d1 MCC |
698 | static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed, |
699 | unsigned char *Decompressed, int *StartPos, | |
700 | int *BlockTypeStartPos, int Len) | |
701 | { | |
702 | int RestPixel, Idx, MaxPos, Pos, ExtraPos, BlockLen, BlockTypePos, BlockTypeLen; | |
703 | unsigned char BlockByte, BlockCode, BlockType, BlockTypeByte, Integrator; | |
704 | ||
705 | Integrator = 0; | |
706 | Pos = *StartPos; | |
707 | BlockTypePos = *BlockTypeStartPos; | |
708 | MaxPos = 396; //Pos + Len; | |
709 | ExtraPos = Pos; | |
710 | BlockLen = 0; | |
711 | BlockByte = 0; | |
712 | BlockCode = 0; | |
713 | BlockType = 0; | |
714 | BlockTypeByte = 0; | |
715 | BlockTypeLen = 0; | |
716 | RestPixel = Len; | |
717 | ||
718 | for (Idx = 0; Idx < Len; Idx++) { | |
719 | ||
720 | if (BlockLen == 0) { | |
721 | if (BlockTypeLen==0) { | |
722 | BlockTypeByte = Compressed[BlockTypePos]; | |
723 | BlockTypePos++; | |
724 | BlockTypeLen = 4; | |
725 | } | |
726 | BlockType = (BlockTypeByte & 0xC0) >> 6; | |
727 | ||
728 | //statistic: | |
729 | usbvision->ComprBlockTypes[BlockType]++; | |
730 | ||
731 | Pos = ExtraPos; | |
732 | if (BlockType == 0) { | |
733 | if(RestPixel >= 24) { | |
734 | Idx += 23; | |
735 | RestPixel -= 24; | |
736 | Integrator = Decompressed[Idx]; | |
737 | } else { | |
738 | Idx += RestPixel - 1; | |
739 | RestPixel = 0; | |
740 | } | |
741 | } else { | |
742 | BlockCode = Compressed[Pos]; | |
743 | Pos++; | |
744 | if (RestPixel >= 24) { | |
745 | BlockLen = 24; | |
746 | } else { | |
747 | BlockLen = RestPixel; | |
748 | } | |
749 | RestPixel -= BlockLen; | |
750 | ExtraPos = Pos + (BlockLen / 4); | |
751 | } | |
752 | BlockTypeByte <<= 2; | |
753 | BlockTypeLen -= 1; | |
754 | } | |
755 | if (BlockLen > 0) { | |
756 | if ((BlockLen%4) == 0) { | |
757 | BlockByte = Compressed[Pos]; | |
758 | Pos++; | |
759 | } | |
760 | if (BlockType == 1) { //inter Block | |
761 | Integrator = Decompressed[Idx]; | |
762 | } | |
763 | switch (BlockByte & 0xC0) { | |
764 | case 0x03<<6: | |
765 | Integrator += Compressed[ExtraPos]; | |
766 | ExtraPos++; | |
767 | break; | |
768 | case 0x02<<6: | |
769 | Integrator += BlockCode; | |
770 | break; | |
771 | case 0x00: | |
772 | Integrator -= BlockCode; | |
773 | break; | |
774 | } | |
775 | Decompressed[Idx] = Integrator; | |
776 | BlockByte <<= 2; | |
777 | BlockLen -= 1; | |
778 | } | |
779 | } | |
780 | *StartPos = ExtraPos; | |
781 | *BlockTypeStartPos = BlockTypePos; | |
782 | return Idx; | |
783 | } | |
784 | ||
785 | ||
786 | /* | |
787 | * usbvision_parse_compress() | |
788 | * | |
789 | * Parse compressed frame from the scratch buffer, put | |
790 | * decoded RGB value into the current frame buffer and add the written | |
791 | * number of bytes (RGB) to the *pcopylen. | |
792 | * | |
793 | */ | |
794 | static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision, | |
795 | long *pcopylen) | |
796 | { | |
797 | #define USBVISION_STRIP_MAGIC 0x5A | |
798 | #define USBVISION_STRIP_LEN_MAX 400 | |
799 | #define USBVISION_STRIP_HEADER_LEN 3 | |
800 | ||
801 | struct usbvision_frame *frame; | |
802 | unsigned char *f,*u = NULL ,*v = NULL; | |
803 | unsigned char StripData[USBVISION_STRIP_LEN_MAX]; | |
804 | unsigned char StripHeader[USBVISION_STRIP_HEADER_LEN]; | |
805 | int Idx, IdxEnd, StripLen, StripPtr, StartBlockPos, BlockPos, BlockTypePos; | |
806 | int clipmask_index, bytes_per_pixel, rc; | |
781aa1d1 MCC |
807 | int imageSize; |
808 | unsigned char rv, gv, bv; | |
809 | static unsigned char *Y, *U, *V; | |
810 | ||
483dfdb6 TM |
811 | frame = usbvision->curFrame; |
812 | imageSize = frame->frmwidth * frame->frmheight; | |
813 | if ( (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || | |
814 | (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) ) { // this is a planar format | |
815 | //... v4l2_linesize not used here. | |
816 | f = frame->data + (frame->width * frame->curline); | |
817 | } else | |
818 | f = frame->data + (frame->v4l2_linesize * frame->curline); | |
819 | ||
820 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV){ //initialise u and v pointers | |
821 | // get base of u and b planes add halfoffset | |
822 | ||
823 | u = frame->data | |
824 | + imageSize | |
825 | + (frame->frmwidth >>1) * frame->curline ; | |
826 | v = u + (imageSize >>1 ); | |
827 | ||
828 | } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420){ | |
829 | ||
830 | v = frame->data + imageSize + ((frame->curline* (frame->width))>>2) ; | |
831 | u = v + (imageSize >>2) ; | |
781aa1d1 MCC |
832 | } |
833 | ||
834 | if (frame->curline == 0) { | |
835 | usbvision_adjust_compression(usbvision); | |
836 | } | |
837 | ||
838 | if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) { | |
839 | return ParseState_Out; | |
840 | } | |
841 | ||
842 | //get strip header without changing the scratch_read_ptr | |
843 | scratch_set_extra_ptr(usbvision, &StripPtr, 0); | |
844 | scratch_get_extra(usbvision, &StripHeader[0], &StripPtr, | |
845 | USBVISION_STRIP_HEADER_LEN); | |
846 | ||
847 | if (StripHeader[0] != USBVISION_STRIP_MAGIC) { | |
848 | // wrong strip magic | |
849 | usbvision->stripMagicErrors++; | |
850 | return ParseState_NextFrame; | |
851 | } | |
852 | ||
853 | if (frame->curline != (int)StripHeader[2]) { | |
854 | //line number missmatch error | |
855 | usbvision->stripLineNumberErrors++; | |
856 | } | |
857 | ||
858 | StripLen = 2 * (unsigned int)StripHeader[1]; | |
859 | if (StripLen > USBVISION_STRIP_LEN_MAX) { | |
860 | // strip overrun | |
861 | // I think this never happens | |
862 | usbvision_request_intra(usbvision); | |
863 | } | |
864 | ||
865 | if (scratch_len(usbvision) < StripLen) { | |
866 | //there is not enough data for the strip | |
867 | return ParseState_Out; | |
868 | } | |
869 | ||
870 | if (usbvision->IntraFrameBuffer) { | |
871 | Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline; | |
872 | U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2); | |
873 | V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2); | |
874 | } | |
875 | else { | |
876 | return ParseState_NextFrame; | |
877 | } | |
878 | ||
18d8a454 | 879 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
781aa1d1 MCC |
880 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; |
881 | ||
882 | scratch_get(usbvision, StripData, StripLen); | |
883 | ||
884 | IdxEnd = frame->frmwidth; | |
885 | BlockTypePos = USBVISION_STRIP_HEADER_LEN; | |
886 | StartBlockPos = BlockTypePos + (IdxEnd - 1) / 96 + (IdxEnd / 2 - 1) / 96 + 2; | |
887 | BlockPos = StartBlockPos; | |
888 | ||
889 | usbvision->BlockPos = BlockPos; | |
890 | ||
891 | if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) { | |
892 | //return ParseState_Continue; | |
893 | } | |
894 | if (StripLen > usbvision->maxStripLen) { | |
895 | usbvision->maxStripLen = StripLen; | |
896 | } | |
897 | ||
898 | if (frame->curline%2) { | |
899 | if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) { | |
900 | //return ParseState_Continue; | |
901 | } | |
902 | } | |
903 | else { | |
904 | if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) { | |
905 | //return ParseState_Continue; | |
906 | } | |
907 | } | |
908 | ||
909 | if (BlockPos > usbvision->comprBlockPos) { | |
910 | usbvision->comprBlockPos = BlockPos; | |
911 | } | |
912 | if (BlockPos > StripLen) { | |
913 | usbvision->stripLenErrors++; | |
914 | } | |
18d8a454 | 915 | |
781aa1d1 | 916 | for (Idx = 0; Idx < IdxEnd; Idx++) { |
483dfdb6 | 917 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
918 | *f++ = Y[Idx]; |
919 | *f++ = Idx & 0x01 ? U[Idx/2] : V[Idx/2]; | |
920 | } | |
921 | else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) { | |
922 | *f++ = Y[Idx]; | |
923 | if ( Idx & 0x01) | |
924 | *u++ = U[Idx>>1] ; | |
925 | else | |
926 | *v++ = V[Idx>>1]; | |
927 | } | |
928 | else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) { | |
929 | *f++ = Y [Idx]; | |
18d8a454 DG |
930 | if ( !(( Idx & 0x01 ) | ( frame->curline & 0x01 )) ){ |
931 | ||
781aa1d1 MCC |
932 | /* only need do this for 1 in 4 pixels */ |
933 | /* intraframe buffer is YUV420 format */ | |
934 | ||
935 | *u++ = U[Idx >>1]; | |
936 | *v++ = V[Idx >>1]; | |
937 | } | |
18d8a454 | 938 | |
781aa1d1 MCC |
939 | } |
940 | else { | |
941 | YUV_TO_RGB_BY_THE_BOOK(Y[Idx], U[Idx/2], V[Idx/2], rv, gv, bv); | |
942 | switch (frame->v4l2_format.format) { | |
943 | case V4L2_PIX_FMT_GREY: | |
944 | *f++ = Y[Idx]; | |
945 | break; | |
946 | case V4L2_PIX_FMT_RGB555: | |
947 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2)); | |
948 | *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1)); | |
949 | break; | |
950 | case V4L2_PIX_FMT_RGB565: | |
951 | *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3)); | |
952 | *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv); | |
953 | break; | |
954 | case V4L2_PIX_FMT_RGB24: | |
955 | *f++ = bv; | |
956 | *f++ = gv; | |
957 | *f++ = rv; | |
958 | break; | |
959 | case V4L2_PIX_FMT_RGB32: | |
960 | *f++ = bv; | |
961 | *f++ = gv; | |
962 | *f++ = rv; | |
963 | f++; | |
964 | break; | |
965 | } | |
966 | } | |
967 | clipmask_index++; | |
968 | } | |
18d8a454 DG |
969 | /* Deal with non-integer no. of bytes for YUV420P */ |
970 | if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420 ) | |
971 | *pcopylen += frame->v4l2_linesize; | |
972 | else | |
973 | *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1; | |
974 | ||
781aa1d1 MCC |
975 | frame->curline += 1; |
976 | ||
977 | if (frame->curline >= frame->frmheight) { | |
978 | return ParseState_NextFrame; | |
979 | } | |
980 | else { | |
981 | return ParseState_Continue; | |
982 | } | |
983 | ||
984 | } | |
985 | ||
986 | ||
987 | /* | |
988 | * usbvision_parse_lines_420() | |
989 | * | |
990 | * Parse two lines from the scratch buffer, put | |
991 | * decoded RGB value into the current frame buffer and add the written | |
992 | * number of bytes (RGB) to the *pcopylen. | |
993 | * | |
994 | */ | |
995 | static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision, | |
996 | long *pcopylen) | |
997 | { | |
998 | struct usbvision_frame *frame; | |
999 | unsigned char *f_even = NULL, *f_odd = NULL; | |
1000 | unsigned int pixel_per_line, block; | |
1001 | int pixel, block_split; | |
1002 | int y_ptr, u_ptr, v_ptr, y_odd_offset; | |
1003 | const int y_block_size = 128; | |
1004 | const int uv_block_size = 64; | |
1005 | const int sub_block_size = 32; | |
1006 | const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4; | |
1007 | const int uv_step[]= { 0, 0, 0, 4 }, uv_step_size = 4; | |
1008 | unsigned char y[2], u, v; /* YUV components */ | |
1009 | int y_, u_, v_, vb, uvg, ur; | |
1010 | int r_, g_, b_; /* RGB components */ | |
1011 | unsigned char g; | |
1012 | int clipmask_even_index, clipmask_odd_index, bytes_per_pixel; | |
1013 | int clipmask_add, stretch_bytes; | |
781aa1d1 | 1014 | |
483dfdb6 TM |
1015 | frame = usbvision->curFrame; |
1016 | f_even = frame->data + (frame->v4l2_linesize * frame->curline); | |
1017 | f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height; | |
781aa1d1 MCC |
1018 | |
1019 | /* Make sure there's enough data for the entire line */ | |
1020 | /* In this mode usbvision transfer 3 bytes for every 2 pixels */ | |
1021 | /* I need two lines to decode the color */ | |
18d8a454 | 1022 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
781aa1d1 MCC |
1023 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; |
1024 | clipmask_even_index = frame->curline * MAX_FRAME_WIDTH; | |
1025 | clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH; | |
1026 | clipmask_add = usbvision->stretch_width; | |
1027 | pixel_per_line = frame->isocHeader.frameWidth; | |
1028 | ||
1029 | if (scratch_len(usbvision) < (int)pixel_per_line * 3) { | |
1030 | //printk(KERN_DEBUG "out of data, need %d\n", len); | |
1031 | return ParseState_Out; | |
1032 | } | |
1033 | ||
1034 | if ((frame->curline + 1) >= frame->frmheight) { | |
1035 | return ParseState_NextFrame; | |
1036 | } | |
1037 | ||
1038 | block_split = (pixel_per_line%y_block_size) ? 1 : 0; //are some blocks splitted into different lines? | |
1039 | ||
1040 | y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size) | |
1041 | + block_split * uv_block_size; | |
1042 | ||
1043 | scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset); | |
1044 | scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size); | |
1045 | scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset | |
1046 | + (4 - block_split) * sub_block_size); | |
1047 | ||
1048 | for (block = 0; block < (pixel_per_line / sub_block_size); | |
1049 | block++) { | |
1050 | ||
1051 | ||
1052 | for (pixel = 0; pixel < sub_block_size; pixel +=2) { | |
1053 | scratch_get(usbvision, &y[0], 2); | |
1054 | scratch_get_extra(usbvision, &u, &u_ptr, 1); | |
1055 | scratch_get_extra(usbvision, &v, &v_ptr, 1); | |
1056 | ||
1057 | //I don't use the YUV_TO_RGB macro for better performance | |
1058 | v_ = v - 128; | |
1059 | u_ = u - 128; | |
1060 | vb = 132252 * v_; | |
1061 | uvg= -53281 * u_ - 25625 * v_; | |
1062 | ur = 104595 * u_; | |
1063 | ||
483dfdb6 | 1064 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1065 | *f_even++ = y[0]; |
1066 | *f_even++ = v; | |
1067 | } | |
1068 | else { | |
1069 | y_ = 76284 * (y[0] - 16); | |
1070 | ||
1071 | b_ = (y_ + vb) >> 16; | |
1072 | g_ = (y_ + uvg)>> 16; | |
1073 | r_ = (y_ + ur) >> 16; | |
1074 | ||
1075 | switch (frame->v4l2_format.format) { | |
1076 | case V4L2_PIX_FMT_RGB565: | |
1077 | g = LIMIT_RGB(g_); | |
1078 | *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3)); | |
1079 | *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_)); | |
1080 | break; | |
1081 | case V4L2_PIX_FMT_RGB24: | |
1082 | *f_even++ = LIMIT_RGB(b_); | |
1083 | *f_even++ = LIMIT_RGB(g_); | |
1084 | *f_even++ = LIMIT_RGB(r_); | |
1085 | break; | |
1086 | case V4L2_PIX_FMT_RGB32: | |
1087 | *f_even++ = LIMIT_RGB(b_); | |
1088 | *f_even++ = LIMIT_RGB(g_); | |
1089 | *f_even++ = LIMIT_RGB(r_); | |
1090 | f_even++; | |
1091 | break; | |
1092 | case V4L2_PIX_FMT_RGB555: | |
1093 | g = LIMIT_RGB(g_); | |
1094 | *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2)); | |
1095 | *f_even++ = (0x03 & ( g >> 6)) | | |
1096 | (0x7C & (LIMIT_RGB(r_) >> 1)); | |
1097 | break; | |
1098 | } | |
1099 | } | |
1100 | clipmask_even_index += clipmask_add; | |
1101 | f_even += stretch_bytes; | |
1102 | ||
483dfdb6 | 1103 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1104 | *f_even++ = y[1]; |
1105 | *f_even++ = u; | |
1106 | } | |
1107 | else { | |
1108 | y_ = 76284 * (y[1] - 16); | |
1109 | ||
1110 | b_ = (y_ + vb) >> 16; | |
1111 | g_ = (y_ + uvg)>> 16; | |
1112 | r_ = (y_ + ur) >> 16; | |
1113 | ||
1114 | switch (frame->v4l2_format.format) { | |
1115 | case V4L2_PIX_FMT_RGB565: | |
1116 | g = LIMIT_RGB(g_); | |
1117 | *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3)); | |
1118 | *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_)); | |
1119 | break; | |
1120 | case V4L2_PIX_FMT_RGB24: | |
1121 | *f_even++ = LIMIT_RGB(b_); | |
1122 | *f_even++ = LIMIT_RGB(g_); | |
1123 | *f_even++ = LIMIT_RGB(r_); | |
1124 | break; | |
1125 | case V4L2_PIX_FMT_RGB32: | |
1126 | *f_even++ = LIMIT_RGB(b_); | |
1127 | *f_even++ = LIMIT_RGB(g_); | |
1128 | *f_even++ = LIMIT_RGB(r_); | |
1129 | f_even++; | |
1130 | break; | |
1131 | case V4L2_PIX_FMT_RGB555: | |
1132 | g = LIMIT_RGB(g_); | |
1133 | *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2)); | |
1134 | *f_even++ = (0x03 & ( g >> 6)) | | |
1135 | (0x7C & (LIMIT_RGB(r_) >> 1)); | |
1136 | break; | |
1137 | } | |
1138 | } | |
1139 | clipmask_even_index += clipmask_add; | |
1140 | f_even += stretch_bytes; | |
1141 | ||
1142 | scratch_get_extra(usbvision, &y[0], &y_ptr, 2); | |
1143 | ||
483dfdb6 | 1144 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1145 | *f_odd++ = y[0]; |
1146 | *f_odd++ = v; | |
1147 | } | |
1148 | else { | |
1149 | y_ = 76284 * (y[0] - 16); | |
1150 | ||
1151 | b_ = (y_ + vb) >> 16; | |
1152 | g_ = (y_ + uvg)>> 16; | |
1153 | r_ = (y_ + ur) >> 16; | |
1154 | ||
1155 | switch (frame->v4l2_format.format) { | |
1156 | case V4L2_PIX_FMT_RGB565: | |
1157 | g = LIMIT_RGB(g_); | |
1158 | *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3)); | |
1159 | *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_)); | |
1160 | break; | |
1161 | case V4L2_PIX_FMT_RGB24: | |
1162 | *f_odd++ = LIMIT_RGB(b_); | |
1163 | *f_odd++ = LIMIT_RGB(g_); | |
1164 | *f_odd++ = LIMIT_RGB(r_); | |
1165 | break; | |
1166 | case V4L2_PIX_FMT_RGB32: | |
1167 | *f_odd++ = LIMIT_RGB(b_); | |
1168 | *f_odd++ = LIMIT_RGB(g_); | |
1169 | *f_odd++ = LIMIT_RGB(r_); | |
1170 | f_odd++; | |
1171 | break; | |
1172 | case V4L2_PIX_FMT_RGB555: | |
1173 | g = LIMIT_RGB(g_); | |
1174 | *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2)); | |
1175 | *f_odd++ = (0x03 & ( g >> 6)) | | |
1176 | (0x7C & (LIMIT_RGB(r_) >> 1)); | |
1177 | break; | |
1178 | } | |
1179 | } | |
1180 | clipmask_odd_index += clipmask_add; | |
1181 | f_odd += stretch_bytes; | |
1182 | ||
483dfdb6 | 1183 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1184 | *f_odd++ = y[1]; |
1185 | *f_odd++ = u; | |
1186 | } | |
1187 | else { | |
1188 | y_ = 76284 * (y[1] - 16); | |
1189 | ||
1190 | b_ = (y_ + vb) >> 16; | |
1191 | g_ = (y_ + uvg)>> 16; | |
1192 | r_ = (y_ + ur) >> 16; | |
1193 | ||
1194 | switch (frame->v4l2_format.format) { | |
1195 | case V4L2_PIX_FMT_RGB565: | |
1196 | g = LIMIT_RGB(g_); | |
1197 | *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3)); | |
1198 | *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_)); | |
1199 | break; | |
1200 | case V4L2_PIX_FMT_RGB24: | |
1201 | *f_odd++ = LIMIT_RGB(b_); | |
1202 | *f_odd++ = LIMIT_RGB(g_); | |
1203 | *f_odd++ = LIMIT_RGB(r_); | |
1204 | break; | |
1205 | case V4L2_PIX_FMT_RGB32: | |
1206 | *f_odd++ = LIMIT_RGB(b_); | |
1207 | *f_odd++ = LIMIT_RGB(g_); | |
1208 | *f_odd++ = LIMIT_RGB(r_); | |
1209 | f_odd++; | |
1210 | break; | |
1211 | case V4L2_PIX_FMT_RGB555: | |
1212 | g = LIMIT_RGB(g_); | |
1213 | *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2)); | |
1214 | *f_odd++ = (0x03 & ( g >> 6)) | | |
1215 | (0x7C & (LIMIT_RGB(r_) >> 1)); | |
1216 | break; | |
1217 | } | |
1218 | } | |
1219 | clipmask_odd_index += clipmask_add; | |
1220 | f_odd += stretch_bytes; | |
1221 | } | |
1222 | ||
1223 | scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size); | |
1224 | scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size] | |
1225 | * sub_block_size); | |
1226 | scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size] | |
1227 | * sub_block_size); | |
1228 | scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size] | |
1229 | * sub_block_size); | |
1230 | } | |
1231 | ||
1232 | scratch_rm_old(usbvision, pixel_per_line * 3 / 2 | |
1233 | + block_split * sub_block_size); | |
1234 | ||
1235 | frame->curline += 2 * usbvision->stretch_height; | |
1236 | *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height; | |
1237 | ||
1238 | if (frame->curline >= frame->frmheight) | |
1239 | return ParseState_NextFrame; | |
1240 | else | |
1241 | return ParseState_Continue; | |
1242 | } | |
1243 | ||
1244 | /* | |
1245 | * usbvision_parse_data() | |
1246 | * | |
1247 | * Generic routine to parse the scratch buffer. It employs either | |
1248 | * usbvision_find_header() or usbvision_parse_lines() to do most | |
1249 | * of work. | |
1250 | * | |
1251 | */ | |
1252 | static void usbvision_parse_data(struct usb_usbvision *usbvision) | |
1253 | { | |
1254 | struct usbvision_frame *frame; | |
1255 | enum ParseState newstate; | |
1256 | long copylen = 0; | |
f2242ee5 | 1257 | unsigned long lock_flags; |
781aa1d1 | 1258 | |
483dfdb6 | 1259 | frame = usbvision->curFrame; |
781aa1d1 MCC |
1260 | |
1261 | PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision)); | |
1262 | ||
781aa1d1 MCC |
1263 | while (1) { |
1264 | ||
1265 | newstate = ParseState_Out; | |
1266 | if (scratch_len(usbvision)) { | |
1267 | if (frame->scanstate == ScanState_Scanning) { | |
1268 | newstate = usbvision_find_header(usbvision); | |
1269 | } | |
1270 | else if (frame->scanstate == ScanState_Lines) { | |
1271 | if (usbvision->isocMode == ISOC_MODE_YUV420) { | |
1272 | newstate = usbvision_parse_lines_420(usbvision, ©len); | |
1273 | } | |
1274 | else if (usbvision->isocMode == ISOC_MODE_YUV422) { | |
1275 | newstate = usbvision_parse_lines_422(usbvision, ©len); | |
1276 | } | |
1277 | else if (usbvision->isocMode == ISOC_MODE_COMPRESS) { | |
1278 | newstate = usbvision_parse_compress(usbvision, ©len); | |
1279 | } | |
1280 | ||
1281 | } | |
1282 | } | |
1283 | if (newstate == ParseState_Continue) { | |
1284 | continue; | |
1285 | } | |
1286 | else if ((newstate == ParseState_NextFrame) || (newstate == ParseState_Out)) { | |
1287 | break; | |
1288 | } | |
1289 | else { | |
1290 | return; /* ParseState_EndParse */ | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | if (newstate == ParseState_NextFrame) { | |
1295 | frame->grabstate = FrameState_Done; | |
1296 | do_gettimeofday(&(frame->timestamp)); | |
1297 | frame->sequence = usbvision->frame_num; | |
781aa1d1 | 1298 | |
483dfdb6 TM |
1299 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); |
1300 | list_move_tail(&(frame->frame), &usbvision->outqueue); | |
1301 | usbvision->curFrame = NULL; | |
1302 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1303 | ||
1304 | usbvision->frame_num++; | |
781aa1d1 MCC |
1305 | |
1306 | /* This will cause the process to request another frame. */ | |
f2242ee5 TM |
1307 | if (waitqueue_active(&usbvision->wait_frame)) { |
1308 | PDEBUG(DBG_PARSE, "Wake up !"); | |
1309 | wake_up_interruptible(&usbvision->wait_frame); | |
781aa1d1 MCC |
1310 | } |
1311 | } | |
f2242ee5 TM |
1312 | else |
1313 | frame->grabstate = FrameState_Grabbing; | |
1314 | ||
781aa1d1 MCC |
1315 | |
1316 | /* Update the frame's uncompressed length. */ | |
1317 | frame->scanlength += copylen; | |
1318 | } | |
1319 | ||
1320 | ||
1321 | /* | |
1322 | * Make all of the blocks of data contiguous | |
1323 | */ | |
1324 | static int usbvision_compress_isochronous(struct usb_usbvision *usbvision, | |
f2242ee5 | 1325 | struct urb *urb) |
781aa1d1 MCC |
1326 | { |
1327 | unsigned char *packet_data; | |
1328 | int i, totlen = 0; | |
1329 | ||
1330 | for (i = 0; i < urb->number_of_packets; i++) { | |
1331 | int packet_len = urb->iso_frame_desc[i].actual_length; | |
1332 | int packet_stat = urb->iso_frame_desc[i].status; | |
1333 | ||
1334 | packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
1335 | ||
1336 | /* Detect and ignore errored packets */ | |
1337 | if (packet_stat) { // packet_stat != 0 ????????????? | |
1338 | PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat); | |
1339 | usbvision->isocErrCount++; | |
1340 | continue; | |
1341 | } | |
1342 | ||
1343 | /* Detect and ignore empty packets */ | |
1344 | if (packet_len < 0) { | |
1345 | PDEBUG(DBG_ISOC, "error packet [%d]", i); | |
1346 | usbvision->isocSkipCount++; | |
1347 | continue; | |
1348 | } | |
1349 | else if (packet_len == 0) { /* Frame end ????? */ | |
1350 | PDEBUG(DBG_ISOC, "null packet [%d]", i); | |
1351 | usbvision->isocstate=IsocState_NoFrame; | |
1352 | usbvision->isocSkipCount++; | |
1353 | continue; | |
1354 | } | |
1355 | else if (packet_len > usbvision->isocPacketSize) { | |
1356 | PDEBUG(DBG_ISOC, "packet[%d] > isocPacketSize", i); | |
1357 | usbvision->isocSkipCount++; | |
1358 | continue; | |
1359 | } | |
1360 | ||
1361 | PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len); | |
1362 | ||
1363 | if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins | |
1364 | usbvision->isocstate=IsocState_InFrame; | |
1365 | scratch_mark_header(usbvision); | |
1366 | usbvision_measure_bandwidth(usbvision); | |
1367 | PDEBUG(DBG_ISOC, "packet with header"); | |
1368 | } | |
1369 | ||
1370 | /* | |
1371 | * If usbvision continues to feed us with data but there is no | |
1372 | * consumption (if, for example, V4L client fell asleep) we | |
1373 | * may overflow the buffer. We have to move old data over to | |
1374 | * free room for new data. This is bad for old data. If we | |
1375 | * just drop new data then it's bad for new data... choose | |
1376 | * your favorite evil here. | |
1377 | */ | |
1378 | if (scratch_free(usbvision) < packet_len) { | |
1379 | ||
1380 | usbvision->scratch_ovf_count++; | |
1381 | PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d", | |
1382 | scratch_len(usbvision), packet_len); | |
1383 | scratch_rm_old(usbvision, packet_len - scratch_free(usbvision)); | |
1384 | } | |
1385 | ||
1386 | /* Now we know that there is enough room in scratch buffer */ | |
1387 | scratch_put(usbvision, packet_data, packet_len); | |
1388 | totlen += packet_len; | |
1389 | usbvision->isocDataCount += packet_len; | |
1390 | usbvision->isocPacketCount++; | |
1391 | } | |
1392 | #if ENABLE_HEXDUMP | |
1393 | if (totlen > 0) { | |
1394 | static int foo = 0; | |
1395 | if (foo < 1) { | |
1396 | printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen); | |
1397 | usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen); | |
1398 | ++foo; | |
1399 | } | |
1400 | } | |
1401 | #endif | |
1402 | return totlen; | |
1403 | } | |
1404 | ||
a1ed551c | 1405 | static void usbvision_isocIrq(struct urb *urb) |
781aa1d1 | 1406 | { |
f2242ee5 TM |
1407 | int errCode = 0; |
1408 | int len; | |
1409 | struct usb_usbvision *usbvision = urb->context; | |
1410 | int i; | |
1411 | unsigned long startTime = jiffies; | |
1412 | struct usbvision_frame **f; | |
781aa1d1 | 1413 | |
f2242ee5 TM |
1414 | /* We don't want to do anything if we are about to be removed! */ |
1415 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1416 | return; | |
781aa1d1 | 1417 | |
f2242ee5 | 1418 | f = &usbvision->curFrame; |
781aa1d1 | 1419 | |
f2242ee5 TM |
1420 | /* Manage streaming interruption */ |
1421 | if (usbvision->streaming == Stream_Interrupt) { | |
5f7fb877 | 1422 | usbvision->streaming = Stream_Idle; |
f2242ee5 TM |
1423 | if ((*f)) { |
1424 | (*f)->grabstate = FrameState_Ready; | |
1425 | (*f)->scanstate = ScanState_Scanning; | |
1426 | } | |
1427 | PDEBUG(DBG_IRQ, "stream interrupted"); | |
1428 | wake_up_interruptible(&usbvision->wait_stream); | |
1429 | } | |
781aa1d1 | 1430 | |
f2242ee5 TM |
1431 | /* Copy the data received into our scratch buffer */ |
1432 | len = usbvision_compress_isochronous(usbvision, urb); | |
781aa1d1 | 1433 | |
f2242ee5 TM |
1434 | usbvision->isocUrbCount++; |
1435 | usbvision->urb_length = len; | |
781aa1d1 | 1436 | |
f2242ee5 TM |
1437 | if (usbvision->streaming == Stream_On) { |
1438 | ||
1439 | /* If we collected enough data let's parse! */ | |
1440 | if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH) { /* 12 == header_length */ | |
1441 | /*If we don't have a frame we're current working on, complain */ | |
483dfdb6 | 1442 | if(!list_empty(&(usbvision->inqueue))) { |
f2242ee5 TM |
1443 | if (!(*f)) { |
1444 | (*f) = list_entry(usbvision->inqueue.next,struct usbvision_frame, frame); | |
1445 | } | |
1446 | usbvision_parse_data(usbvision); | |
1447 | } | |
1448 | else { | |
1449 | PDEBUG(DBG_IRQ, "received data, but no one needs it"); | |
1450 | scratch_reset(usbvision); | |
1451 | } | |
781aa1d1 MCC |
1452 | } |
1453 | } | |
40bad678 TM |
1454 | else { |
1455 | PDEBUG(DBG_IRQ, "received data, but no one needs it"); | |
1456 | scratch_reset(usbvision); | |
1457 | } | |
f2242ee5 | 1458 | |
781aa1d1 | 1459 | usbvision->timeInIrq += jiffies - startTime; |
f2242ee5 TM |
1460 | |
1461 | for (i = 0; i < USBVISION_URB_FRAMES; i++) { | |
1462 | urb->iso_frame_desc[i].status = 0; | |
1463 | urb->iso_frame_desc[i].actual_length = 0; | |
1464 | } | |
1465 | ||
1466 | urb->status = 0; | |
1467 | urb->dev = usbvision->dev; | |
1468 | errCode = usb_submit_urb (urb, GFP_ATOMIC); | |
1469 | ||
1470 | /* Disable this warning. By design of the driver. */ | |
1471 | // if(errCode) { | |
1472 | // err("%s: usb_submit_urb failed: error %d", __FUNCTION__, errCode); | |
1473 | // } | |
1474 | ||
781aa1d1 MCC |
1475 | return; |
1476 | } | |
1477 | ||
1478 | /*************************************/ | |
1479 | /* Low level usbvision access functions */ | |
1480 | /*************************************/ | |
1481 | ||
1482 | /* | |
1483 | * usbvision_read_reg() | |
1484 | * | |
1485 | * return < 0 -> Error | |
1486 | * >= 0 -> Data | |
1487 | */ | |
1488 | ||
483dfdb6 | 1489 | int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg) |
781aa1d1 MCC |
1490 | { |
1491 | int errCode = 0; | |
1492 | unsigned char buffer[1]; | |
1493 | ||
1494 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1495 | return -1; | |
1496 | ||
1497 | errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1), | |
1498 | USBVISION_OP_CODE, | |
1499 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, | |
1500 | 0, (__u16) reg, buffer, 1, HZ); | |
1501 | ||
1502 | if (errCode < 0) { | |
1503 | err("%s: failed: error %d", __FUNCTION__, errCode); | |
1504 | return errCode; | |
1505 | } | |
1506 | return buffer[0]; | |
1507 | } | |
1508 | ||
1509 | /* | |
1510 | * usbvision_write_reg() | |
1511 | * | |
1512 | * return 1 -> Reg written | |
1513 | * 0 -> usbvision is not yet ready | |
1514 | * -1 -> Something went wrong | |
1515 | */ | |
1516 | ||
483dfdb6 | 1517 | int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, |
781aa1d1 MCC |
1518 | unsigned char value) |
1519 | { | |
1520 | int errCode = 0; | |
1521 | ||
1522 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1523 | return 0; | |
1524 | ||
1525 | errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1526 | USBVISION_OP_CODE, | |
1527 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1528 | USB_RECIP_ENDPOINT, 0, (__u16) reg, &value, 1, HZ); | |
1529 | ||
1530 | if (errCode < 0) { | |
1531 | err("%s: failed: error %d", __FUNCTION__, errCode); | |
1532 | } | |
1533 | return errCode; | |
1534 | } | |
1535 | ||
1536 | ||
a1ed551c | 1537 | static void usbvision_ctrlUrb_complete(struct urb *urb) |
781aa1d1 MCC |
1538 | { |
1539 | struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context; | |
1540 | ||
1541 | PDEBUG(DBG_IRQ, ""); | |
1542 | usbvision->ctrlUrbBusy = 0; | |
1543 | if (waitqueue_active(&usbvision->ctrlUrb_wq)) { | |
1544 | wake_up_interruptible(&usbvision->ctrlUrb_wq); | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | ||
1549 | static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address, | |
1550 | unsigned char *data, int len) | |
1551 | { | |
1552 | int errCode = 0; | |
1553 | ||
1554 | PDEBUG(DBG_IRQ, ""); | |
1555 | if (len > 8) { | |
1556 | return -EFAULT; | |
1557 | } | |
1558 | // down(&usbvision->ctrlUrbLock); | |
1559 | if (usbvision->ctrlUrbBusy) { | |
1560 | // up(&usbvision->ctrlUrbLock); | |
1561 | return -EBUSY; | |
1562 | } | |
1563 | usbvision->ctrlUrbBusy = 1; | |
1564 | // up(&usbvision->ctrlUrbLock); | |
1565 | ||
1566 | usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT; | |
1567 | usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE; | |
1568 | usbvision->ctrlUrbSetup.wValue = 0; | |
1569 | usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address); | |
1570 | usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len); | |
1571 | usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev, | |
1572 | usb_sndctrlpipe(usbvision->dev, 1), | |
1573 | (unsigned char *)&usbvision->ctrlUrbSetup, | |
1574 | (void *)usbvision->ctrlUrbBuffer, len, | |
1575 | usbvision_ctrlUrb_complete, | |
1576 | (void *)usbvision); | |
1577 | ||
1578 | memcpy(usbvision->ctrlUrbBuffer, data, len); | |
1579 | ||
1580 | errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC); | |
1581 | if (errCode < 0) { | |
1582 | // error in usb_submit_urb() | |
1583 | usbvision->ctrlUrbBusy = 0; | |
1584 | } | |
1585 | PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, errCode); | |
1586 | return errCode; | |
1587 | } | |
1588 | ||
1589 | ||
781aa1d1 MCC |
1590 | static int usbvision_init_compression(struct usb_usbvision *usbvision) |
1591 | { | |
1592 | int errCode = 0; | |
1593 | ||
1594 | usbvision->lastIsocFrameNum = -1; | |
1595 | usbvision->isocDataCount = 0; | |
1596 | usbvision->isocPacketCount = 0; | |
1597 | usbvision->isocSkipCount = 0; | |
1598 | usbvision->comprLevel = 50; | |
1599 | usbvision->lastComprLevel = -1; | |
1600 | usbvision->isocUrbCount = 0; | |
1601 | usbvision->requestIntra = 1; | |
1602 | usbvision->isocMeasureBandwidthCount = 0; | |
1603 | ||
1604 | return errCode; | |
1605 | } | |
1606 | ||
1607 | /* this function measures the used bandwidth since last call | |
1608 | * return: 0 : no error | |
1609 | * sets usedBandwidth to 1-100 : 1-100% of full bandwidth resp. to isocPacketSize | |
1610 | */ | |
1611 | static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision) | |
1612 | { | |
1613 | int errCode = 0; | |
1614 | ||
1615 | if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames | |
1616 | usbvision->isocMeasureBandwidthCount++; | |
1617 | return errCode; | |
1618 | } | |
1619 | if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) { | |
1620 | usbvision->usedBandwidth = usbvision->isocDataCount / | |
1621 | (usbvision->isocPacketCount + usbvision->isocSkipCount) * | |
1622 | 100 / usbvision->isocPacketSize; | |
1623 | } | |
1624 | usbvision->isocMeasureBandwidthCount = 0; | |
1625 | usbvision->isocDataCount = 0; | |
1626 | usbvision->isocPacketCount = 0; | |
1627 | usbvision->isocSkipCount = 0; | |
1628 | return errCode; | |
1629 | } | |
1630 | ||
1631 | static int usbvision_adjust_compression (struct usb_usbvision *usbvision) | |
1632 | { | |
1633 | int errCode = 0; | |
1634 | unsigned char buffer[6]; | |
1635 | ||
1636 | PDEBUG(DBG_IRQ, ""); | |
1637 | if ((adjustCompression) && (usbvision->usedBandwidth > 0)) { | |
1638 | usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2; | |
1639 | RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100); | |
1640 | if (usbvision->comprLevel != usbvision->lastComprLevel) { | |
1641 | int distorsion; | |
1642 | if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) { | |
1643 | buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1 | |
1644 | buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2 | |
1645 | distorsion = 7 + 248 * usbvision->comprLevel / 100; | |
1646 | buffer[2] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (inter) | |
1647 | buffer[3] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (intra) | |
1648 | distorsion = 1 + 42 * usbvision->comprLevel / 100; | |
1649 | buffer[4] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (inter) | |
1650 | buffer[5] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (intra) | |
1651 | } | |
1652 | else { //BRIDGE_NT1003 | |
1653 | buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1 | |
1654 | buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2 | |
1655 | distorsion = 2 + 253 * usbvision->comprLevel / 100; | |
1656 | buffer[2] = (unsigned char)(distorsion & 0xFF); // distorsion threshold bit0-7 | |
1657 | buffer[3] = 0; //(unsigned char)((distorsion >> 8) & 0x0F); // distorsion threshold bit 8-11 | |
1658 | distorsion = 0 + 43 * usbvision->comprLevel / 100; | |
1659 | buffer[4] = (unsigned char)(distorsion & 0xFF); // maximum distorsion bit0-7 | |
1660 | buffer[5] = 0; //(unsigned char)((distorsion >> 8) & 0x01); // maximum distorsion bit 8 | |
1661 | } | |
1662 | errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6); | |
1663 | if (errCode == 0){ | |
1664 | PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0], | |
1665 | buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]); | |
1666 | usbvision->lastComprLevel = usbvision->comprLevel; | |
1667 | } | |
1668 | } | |
1669 | } | |
1670 | return errCode; | |
1671 | } | |
1672 | ||
1673 | static int usbvision_request_intra (struct usb_usbvision *usbvision) | |
1674 | { | |
1675 | int errCode = 0; | |
1676 | unsigned char buffer[1]; | |
1677 | ||
1678 | PDEBUG(DBG_IRQ, ""); | |
1679 | usbvision->requestIntra = 1; | |
1680 | buffer[0] = 1; | |
1681 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); | |
1682 | return errCode; | |
1683 | } | |
1684 | ||
1685 | static int usbvision_unrequest_intra (struct usb_usbvision *usbvision) | |
1686 | { | |
1687 | int errCode = 0; | |
1688 | unsigned char buffer[1]; | |
1689 | ||
1690 | PDEBUG(DBG_IRQ, ""); | |
1691 | usbvision->requestIntra = 0; | |
1692 | buffer[0] = 0; | |
1693 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); | |
1694 | return errCode; | |
1695 | } | |
1696 | ||
483dfdb6 TM |
1697 | /******************************* |
1698 | * usbvision utility functions | |
1699 | *******************************/ | |
781aa1d1 | 1700 | |
483dfdb6 | 1701 | int usbvision_power_off(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
1702 | { |
1703 | int errCode = 0; | |
1704 | ||
1705 | PDEBUG(DBG_FUNC, ""); | |
1706 | ||
1707 | errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); | |
1708 | if (errCode == 1) { | |
1709 | usbvision->power = 0; | |
1710 | } | |
1711 | PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode!=1)?"ERROR":"power is off", errCode); | |
1712 | return errCode; | |
1713 | } | |
1714 | ||
781aa1d1 MCC |
1715 | /* |
1716 | * usbvision_set_video_format() | |
1717 | * | |
1718 | */ | |
1719 | static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format) | |
1720 | { | |
1721 | static const char proc[] = "usbvision_set_video_format"; | |
1722 | int rc; | |
1723 | unsigned char value[2]; | |
1724 | ||
1725 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1726 | return 0; | |
1727 | ||
1728 | PDEBUG(DBG_FUNC, "isocMode %#02x", format); | |
1729 | ||
1730 | if ((format != ISOC_MODE_YUV422) | |
1731 | && (format != ISOC_MODE_YUV420) | |
1732 | && (format != ISOC_MODE_COMPRESS)) { | |
1733 | printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420", | |
1734 | format); | |
1735 | format = ISOC_MODE_YUV420; | |
1736 | } | |
1737 | value[0] = 0x0A; //TODO: See the effect of the filter | |
1738 | value[1] = format; | |
1739 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1740 | USBVISION_OP_CODE, | |
1741 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1742 | USB_RECIP_ENDPOINT, 0, | |
1743 | (__u16) USBVISION_FILT_CONT, value, 2, HZ); | |
1744 | ||
1745 | if (rc < 0) { | |
1746 | printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - " | |
1747 | "reconnect or reload driver.\n", proc, rc); | |
1748 | } | |
1749 | usbvision->isocMode = format; | |
1750 | return rc; | |
1751 | } | |
1752 | ||
1753 | /* | |
1754 | * usbvision_set_output() | |
1755 | * | |
1756 | */ | |
1757 | ||
483dfdb6 TM |
1758 | int usbvision_set_output(struct usb_usbvision *usbvision, int width, |
1759 | int height) | |
781aa1d1 MCC |
1760 | { |
1761 | int errCode = 0; | |
1762 | int UsbWidth, UsbHeight; | |
1763 | unsigned int frameRate=0, frameDrop=0; | |
1764 | unsigned char value[4]; | |
1765 | ||
1766 | if (!USBVISION_IS_OPERATIONAL(usbvision)) { | |
1767 | return 0; | |
1768 | } | |
1769 | ||
1770 | if (width > MAX_USB_WIDTH) { | |
1771 | UsbWidth = width / 2; | |
1772 | usbvision->stretch_width = 2; | |
1773 | } | |
1774 | else { | |
1775 | UsbWidth = width; | |
1776 | usbvision->stretch_width = 1; | |
1777 | } | |
1778 | ||
1779 | if (height > MAX_USB_HEIGHT) { | |
1780 | UsbHeight = height / 2; | |
1781 | usbvision->stretch_height = 2; | |
1782 | } | |
1783 | else { | |
1784 | UsbHeight = height; | |
1785 | usbvision->stretch_height = 1; | |
1786 | } | |
1787 | ||
1788 | RESTRICT_TO_RANGE(UsbWidth, MIN_FRAME_WIDTH, MAX_USB_WIDTH); | |
1789 | UsbWidth &= ~(MIN_FRAME_WIDTH-1); | |
1790 | RESTRICT_TO_RANGE(UsbHeight, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT); | |
1791 | UsbHeight &= ~(1); | |
1792 | ||
1793 | PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d", | |
1794 | UsbWidth, UsbHeight, width, height, | |
1795 | usbvision->stretch_width, usbvision->stretch_height); | |
1796 | ||
1797 | /* I'll not rewrite the same values */ | |
1798 | if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) { | |
1799 | value[0] = UsbWidth & 0xff; //LSB | |
1800 | value[1] = (UsbWidth >> 8) & 0x03; //MSB | |
1801 | value[2] = UsbHeight & 0xff; //LSB | |
1802 | value[3] = (UsbHeight >> 8) & 0x03; //MSB | |
1803 | ||
1804 | errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1805 | USBVISION_OP_CODE, | |
1806 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, | |
1807 | 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ); | |
1808 | ||
1809 | if (errCode < 0) { | |
1810 | err("%s failed: error %d", __FUNCTION__, errCode); | |
1811 | return errCode; | |
1812 | } | |
1813 | usbvision->curwidth = usbvision->stretch_width * UsbWidth; | |
1814 | usbvision->curheight = usbvision->stretch_height * UsbHeight; | |
1815 | } | |
1816 | ||
1817 | if (usbvision->isocMode == ISOC_MODE_YUV422) { | |
1818 | frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2); | |
1819 | } | |
1820 | else if (usbvision->isocMode == ISOC_MODE_YUV420) { | |
1821 | frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8); | |
1822 | } | |
1823 | else { | |
1824 | frameRate = FRAMERATE_MAX; | |
1825 | } | |
1826 | ||
f2242ee5 | 1827 | if (usbvision->tvnorm->id & V4L2_STD_625_50) { |
18d8a454 | 1828 | frameDrop = frameRate * 32 / 25 - 1; |
781aa1d1 | 1829 | } |
f2242ee5 | 1830 | else if (usbvision->tvnorm->id & V4L2_STD_525_60) { |
781aa1d1 MCC |
1831 | frameDrop = frameRate * 32 / 30 - 1; |
1832 | } | |
1833 | ||
1834 | RESTRICT_TO_RANGE(frameDrop, FRAMERATE_MIN, FRAMERATE_MAX); | |
1835 | ||
1836 | PDEBUG(DBG_FUNC, "frameRate %d fps, frameDrop %d", frameRate, frameDrop); | |
1837 | ||
1838 | frameDrop = FRAMERATE_MAX; // We can allow the maximum here, because dropping is controlled | |
1839 | ||
1840 | /* frameDrop = 7; => framePhase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ... | |
1841 | => frameSkip = 4; | |
1842 | => frameRate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25; | |
1843 | ||
1844 | frameDrop = 9; => framePhase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ... | |
1845 | => frameSkip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ... | |
1846 | => frameRate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125; | |
1847 | */ | |
1848 | errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop); | |
1849 | return errCode; | |
1850 | } | |
1851 | ||
1852 | ||
483dfdb6 TM |
1853 | /* |
1854 | * usbvision_frames_alloc | |
1855 | * allocate the maximum frames this driver can manage | |
1856 | */ | |
1857 | int usbvision_frames_alloc(struct usb_usbvision *usbvision) | |
1858 | { | |
1859 | int i; | |
1860 | ||
1861 | /* Allocate memory for the frame buffers */ | |
1862 | usbvision->max_frame_size = MAX_FRAME_SIZE; | |
1863 | usbvision->fbuf_size = USBVISION_NUMFRAMES * usbvision->max_frame_size; | |
1864 | usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size); | |
1865 | ||
1866 | if(usbvision->fbuf == NULL) { | |
1867 | err("%s: unable to allocate %d bytes for fbuf ", | |
1868 | __FUNCTION__, usbvision->fbuf_size); | |
1869 | return -ENOMEM; | |
1870 | } | |
1871 | spin_lock_init(&usbvision->queue_lock); | |
1872 | init_waitqueue_head(&usbvision->wait_frame); | |
1873 | init_waitqueue_head(&usbvision->wait_stream); | |
1874 | ||
1875 | /* Allocate all buffers */ | |
1876 | for (i = 0; i < USBVISION_NUMFRAMES; i++) { | |
1877 | usbvision->frame[i].index = i; | |
1878 | usbvision->frame[i].grabstate = FrameState_Unused; | |
1879 | usbvision->frame[i].data = usbvision->fbuf + | |
1880 | i * usbvision->max_frame_size; | |
1881 | /* | |
1882 | * Set default sizes for read operation. | |
1883 | */ | |
1884 | usbvision->stretch_width = 1; | |
1885 | usbvision->stretch_height = 1; | |
1886 | usbvision->frame[i].width = usbvision->curwidth; | |
1887 | usbvision->frame[i].height = usbvision->curheight; | |
1888 | usbvision->frame[i].bytes_read = 0; | |
1889 | } | |
1890 | return 0; | |
1891 | } | |
1892 | ||
1893 | /* | |
1894 | * usbvision_frames_free | |
1895 | * frees memory allocated for the frames | |
1896 | */ | |
1897 | void usbvision_frames_free(struct usb_usbvision *usbvision) | |
1898 | { | |
1899 | /* Have to free all that memory */ | |
1900 | if (usbvision->fbuf != NULL) { | |
1901 | usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size); | |
1902 | usbvision->fbuf = NULL; | |
1903 | } | |
1904 | } | |
f2242ee5 TM |
1905 | /* |
1906 | * usbvision_empty_framequeues() | |
1907 | * prepare queues for incoming and outgoing frames | |
1908 | */ | |
483dfdb6 | 1909 | void usbvision_empty_framequeues(struct usb_usbvision *usbvision) |
f2242ee5 TM |
1910 | { |
1911 | u32 i; | |
1912 | ||
1913 | INIT_LIST_HEAD(&(usbvision->inqueue)); | |
1914 | INIT_LIST_HEAD(&(usbvision->outqueue)); | |
1915 | ||
1916 | for (i = 0; i < USBVISION_NUMFRAMES; i++) { | |
1917 | usbvision->frame[i].grabstate = FrameState_Unused; | |
1918 | usbvision->frame[i].bytes_read = 0; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | /* | |
1923 | * usbvision_stream_interrupt() | |
1924 | * stops streaming | |
1925 | */ | |
483dfdb6 | 1926 | int usbvision_stream_interrupt(struct usb_usbvision *usbvision) |
f2242ee5 TM |
1927 | { |
1928 | int ret = 0; | |
1929 | ||
1930 | /* stop reading from the device */ | |
1931 | ||
1932 | usbvision->streaming = Stream_Interrupt; | |
1933 | ret = wait_event_timeout(usbvision->wait_stream, | |
5f7fb877 | 1934 | (usbvision->streaming == Stream_Idle), |
f2242ee5 TM |
1935 | msecs_to_jiffies(USBVISION_NUMSBUF*USBVISION_URB_FRAMES)); |
1936 | return ret; | |
1937 | } | |
1938 | ||
781aa1d1 MCC |
1939 | /* |
1940 | * usbvision_set_compress_params() | |
1941 | * | |
1942 | */ | |
1943 | ||
1944 | static int usbvision_set_compress_params(struct usb_usbvision *usbvision) | |
1945 | { | |
1946 | static const char proc[] = "usbvision_set_compresion_params: "; | |
1947 | int rc; | |
1948 | unsigned char value[6]; | |
1949 | ||
1950 | value[0] = 0x0F; // Intra-Compression cycle | |
1951 | value[1] = 0x01; // Reg.45 one line per strip | |
1952 | value[2] = 0x00; // Reg.46 Force intra mode on all new frames | |
1953 | value[3] = 0x00; // Reg.47 FORCE_UP <- 0 normal operation (not force) | |
1954 | value[4] = 0xA2; // Reg.48 BUF_THR I'm not sure if this does something in not compressed mode. | |
18d8a454 | 1955 | value[5] = 0x00; // Reg.49 DVI_YUV This has nothing to do with compression |
781aa1d1 MCC |
1956 | |
1957 | //catched values for NT1004 | |
1958 | // value[0] = 0xFF; // Never apply intra mode automatically | |
1959 | // value[1] = 0xF1; // Use full frame height for virtual strip width; One line per strip | |
1960 | // value[2] = 0x01; // Force intra mode on all new frames | |
1961 | // value[3] = 0x00; // Strip size 400 Bytes; do not force up | |
1962 | // value[4] = 0xA2; // | |
1963 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1964 | return 0; | |
1965 | ||
1966 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1967 | USBVISION_OP_CODE, | |
1968 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1969 | USB_RECIP_ENDPOINT, 0, | |
1970 | (__u16) USBVISION_INTRA_CYC, value, 5, HZ); | |
1971 | ||
1972 | if (rc < 0) { | |
1973 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " | |
1974 | "reconnect or reload driver.\n", proc, rc); | |
1975 | return rc; | |
1976 | } | |
1977 | ||
1978 | if (usbvision->bridgeType == BRIDGE_NT1004) { | |
1979 | value[0] = 20; // PCM Threshold 1 | |
1980 | value[1] = 12; // PCM Threshold 2 | |
1981 | value[2] = 255; // Distorsion Threshold inter | |
1982 | value[3] = 255; // Distorsion Threshold intra | |
1983 | value[4] = 43; // Max Distorsion inter | |
1984 | value[5] = 43; // Max Distorsion intra | |
1985 | } | |
1986 | else { | |
1987 | value[0] = 20; // PCM Threshold 1 | |
1988 | value[1] = 12; // PCM Threshold 2 | |
1989 | value[2] = 255; // Distorsion Threshold d7-d0 | |
1990 | value[3] = 0; // Distorsion Threshold d11-d8 | |
1991 | value[4] = 43; // Max Distorsion d7-d0 | |
1992 | value[5] = 0; // Max Distorsion d8 | |
1993 | } | |
1994 | ||
1995 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1996 | return 0; | |
1997 | ||
1998 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1999 | USBVISION_OP_CODE, | |
2000 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
2001 | USB_RECIP_ENDPOINT, 0, | |
2002 | (__u16) USBVISION_PCM_THR1, value, 6, HZ); | |
2003 | ||
2004 | if (rc < 0) { | |
2005 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " | |
2006 | "reconnect or reload driver.\n", proc, rc); | |
2007 | return rc; | |
2008 | } | |
2009 | ||
2010 | ||
2011 | return rc; | |
2012 | } | |
2013 | ||
2014 | ||
2015 | /* | |
2016 | * usbvision_set_input() | |
2017 | * | |
2018 | * Set the input (saa711x, ...) size x y and other misc input params | |
2019 | * I've no idea if this parameters are right | |
2020 | * | |
2021 | */ | |
483dfdb6 | 2022 | int usbvision_set_input(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2023 | { |
2024 | static const char proc[] = "usbvision_set_input: "; | |
2025 | int rc; | |
2026 | unsigned char value[8]; | |
2027 | unsigned char dvi_yuv_value; | |
2028 | ||
2029 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
2030 | return 0; | |
2031 | ||
2032 | /* Set input format expected from decoder*/ | |
2033 | if (usbvision_device_data[usbvision->DevModel].Vin_Reg1 >= 0) { | |
2034 | value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1 & 0xff; | |
2035 | } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) { | |
2036 | /* SAA7113 uses 8 bit output */ | |
2037 | value[0] = USBVISION_8_422_SYNC; | |
2038 | } else { | |
2039 | /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses | |
2040 | * as that is how saa7111 is configured */ | |
2041 | value[0] = USBVISION_16_422_SYNC; | |
2042 | /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/ | |
2043 | } | |
2044 | ||
2045 | rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]); | |
2046 | if (rc < 0) { | |
2047 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " | |
2048 | "reconnect or reload driver.\n", proc, rc); | |
2049 | return rc; | |
2050 | } | |
2051 | ||
2052 | ||
f2242ee5 | 2053 | if (usbvision->tvnorm->id & V4L2_STD_PAL) { |
781aa1d1 MCC |
2054 | value[0] = 0xC0; |
2055 | value[1] = 0x02; //0x02C0 -> 704 Input video line length | |
2056 | value[2] = 0x20; | |
2057 | value[3] = 0x01; //0x0120 -> 288 Input video n. of lines | |
2058 | value[4] = 0x60; | |
2059 | value[5] = 0x00; //0x0060 -> 96 Input video h offset | |
2060 | value[6] = 0x16; | |
2061 | value[7] = 0x00; //0x0016 -> 22 Input video v offset | |
f2242ee5 | 2062 | } else if (usbvision->tvnorm->id & V4L2_STD_SECAM) { |
781aa1d1 MCC |
2063 | value[0] = 0xC0; |
2064 | value[1] = 0x02; //0x02C0 -> 704 Input video line length | |
2065 | value[2] = 0x20; | |
2066 | value[3] = 0x01; //0x0120 -> 288 Input video n. of lines | |
2067 | value[4] = 0x01; | |
2068 | value[5] = 0x00; //0x0001 -> 01 Input video h offset | |
2069 | value[6] = 0x01; | |
2070 | value[7] = 0x00; //0x0001 -> 01 Input video v offset | |
2071 | } else { /* V4L2_STD_NTSC */ | |
2072 | value[0] = 0xD0; | |
2073 | value[1] = 0x02; //0x02D0 -> 720 Input video line length | |
2074 | value[2] = 0xF0; | |
2075 | value[3] = 0x00; //0x00F0 -> 240 Input video number of lines | |
2076 | value[4] = 0x50; | |
2077 | value[5] = 0x00; //0x0050 -> 80 Input video h offset | |
2078 | value[6] = 0x10; | |
2079 | value[7] = 0x00; //0x0010 -> 16 Input video v offset | |
2080 | } | |
2081 | ||
2082 | if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) { | |
2083 | value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff; | |
2084 | value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8; | |
2085 | } | |
2086 | ||
2087 | if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) { | |
2088 | value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff; | |
2089 | value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8; | |
2090 | } | |
2091 | ||
2092 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
2093 | USBVISION_OP_CODE, /* USBVISION specific code */ | |
2094 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0, | |
2095 | (__u16) USBVISION_LXSIZE_I, value, 8, HZ); | |
2096 | if (rc < 0) { | |
2097 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " | |
2098 | "reconnect or reload driver.\n", proc, rc); | |
2099 | return rc; | |
2100 | } | |
2101 | ||
2102 | ||
2103 | dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */ | |
2104 | ||
2105 | if(usbvision_device_data[usbvision->DevModel].Dvi_yuv >= 0){ | |
2106 | dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv & 0xff; | |
2107 | } | |
2108 | else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) { | |
18d8a454 | 2109 | /* This changes as the fine sync control changes. Further investigation necessary */ |
781aa1d1 MCC |
2110 | dvi_yuv_value = 0x06; |
2111 | } | |
2112 | ||
2113 | return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value)); | |
2114 | } | |
2115 | ||
2116 | ||
2117 | /* | |
2118 | * usbvision_set_dram_settings() | |
2119 | * | |
2120 | * Set the buffer address needed by the usbvision dram to operate | |
2121 | * This values has been taken with usbsnoop. | |
2122 | * | |
2123 | */ | |
2124 | ||
2125 | static int usbvision_set_dram_settings(struct usb_usbvision *usbvision) | |
2126 | { | |
2127 | int rc; | |
2128 | unsigned char value[8]; | |
2129 | ||
2130 | if (usbvision->isocMode == ISOC_MODE_COMPRESS) { | |
2131 | value[0] = 0x42; | |
2132 | value[1] = 0x71; | |
2133 | value[2] = 0xff; | |
2134 | value[3] = 0x00; | |
2135 | value[4] = 0x98; | |
2136 | value[5] = 0xe0; | |
2137 | value[6] = 0x71; | |
2138 | value[7] = 0xff; | |
2139 | // UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte) | |
2140 | // FDL: 0x00000-0x0E099 = 57498 Words | |
2141 | // VDW: 0x0E3FF-0x3FFFF | |
2142 | } | |
2143 | else { | |
2144 | value[0] = 0x42; | |
2145 | value[1] = 0x00; | |
2146 | value[2] = 0xff; | |
2147 | value[3] = 0x00; | |
2148 | value[4] = 0x00; | |
2149 | value[5] = 0x00; | |
2150 | value[6] = 0x00; | |
2151 | value[7] = 0xff; | |
2152 | } | |
2153 | /* These are the values of the address of the video buffer, | |
2154 | * they have to be loaded into the USBVISION_DRM_PRM1-8 | |
2155 | * | |
2156 | * Start address of video output buffer for read: drm_prm1-2 -> 0x00000 | |
2157 | * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff | |
2158 | * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000 | |
2159 | * Only used in compressed mode | |
2160 | * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff | |
2161 | * Only used in compressed mode | |
2162 | * Start address of video output buffer for write: drm_prm1-7 -> 0x00000 | |
2163 | * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff | |
2164 | */ | |
2165 | ||
2166 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
2167 | return 0; | |
2168 | ||
2169 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
2170 | USBVISION_OP_CODE, /* USBVISION specific code */ | |
2171 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
2172 | USB_RECIP_ENDPOINT, 0, | |
2173 | (__u16) USBVISION_DRM_PRM1, value, 8, HZ); | |
2174 | ||
2175 | if (rc < 0) { | |
2176 | err("%sERROR=%d", __FUNCTION__, rc); | |
2177 | return rc; | |
2178 | } | |
2179 | ||
2180 | /* Restart the video buffer logic */ | |
2181 | if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR | | |
2182 | USBVISION_RES_FDL | USBVISION_RES_VDW)) < 0) | |
2183 | return rc; | |
2184 | rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00); | |
2185 | ||
2186 | return rc; | |
2187 | } | |
2188 | ||
2189 | /* | |
2190 | * () | |
2191 | * | |
2192 | * Power on the device, enables suspend-resume logic | |
2193 | * & reset the isoc End-Point | |
2194 | * | |
2195 | */ | |
2196 | ||
483dfdb6 | 2197 | int usbvision_power_on(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2198 | { |
2199 | int errCode = 0; | |
2200 | ||
2201 | PDEBUG(DBG_FUNC, ""); | |
2202 | ||
2203 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); | |
2204 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, | |
2205 | USBVISION_SSPND_EN | USBVISION_RES2); | |
38284ba3 | 2206 | |
781aa1d1 MCC |
2207 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
2208 | USBVISION_SSPND_EN | USBVISION_PWR_VID); | |
2209 | errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, | |
2210 | USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2); | |
2211 | if (errCode == 1) { | |
2212 | usbvision->power = 1; | |
2213 | } | |
2214 | PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode<0)?"ERROR":"power is on", errCode); | |
2215 | return errCode; | |
2216 | } | |
2217 | ||
2218 | ||
483dfdb6 TM |
2219 | /* |
2220 | * usbvision timer stuff | |
2221 | */ | |
2222 | ||
2223 | // to call usbvision_power_off from task queue | |
67952e8c | 2224 | static void call_usbvision_power_off(struct work_struct *work) |
483dfdb6 | 2225 | { |
1de1bf06 | 2226 | struct usb_usbvision *usbvision = container_of(work, struct usb_usbvision, powerOffWork); |
483dfdb6 TM |
2227 | |
2228 | PDEBUG(DBG_FUNC, ""); | |
2229 | down_interruptible(&usbvision->lock); | |
2230 | if(usbvision->user == 0) { | |
2231 | usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); | |
67952e8c | 2232 | |
483dfdb6 TM |
2233 | usbvision_power_off(usbvision); |
2234 | usbvision->initialized = 0; | |
2235 | } | |
2236 | up(&usbvision->lock); | |
2237 | } | |
2238 | ||
781aa1d1 MCC |
2239 | static void usbvision_powerOffTimer(unsigned long data) |
2240 | { | |
2241 | struct usb_usbvision *usbvision = (void *) data; | |
2242 | ||
2243 | PDEBUG(DBG_FUNC, ""); | |
2244 | del_timer(&usbvision->powerOffTimer); | |
67952e8c | 2245 | INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off); |
781aa1d1 | 2246 | (void) schedule_work(&usbvision->powerOffWork); |
18d8a454 | 2247 | |
781aa1d1 MCC |
2248 | } |
2249 | ||
483dfdb6 TM |
2250 | void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision) |
2251 | { | |
2252 | init_timer(&usbvision->powerOffTimer); | |
2253 | usbvision->powerOffTimer.data = (long) usbvision; | |
2254 | usbvision->powerOffTimer.function = usbvision_powerOffTimer; | |
2255 | } | |
2256 | ||
2257 | void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision) | |
2258 | { | |
2259 | mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME); | |
2260 | } | |
2261 | ||
2262 | void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision) | |
2263 | { | |
2264 | if (timer_pending(&usbvision->powerOffTimer)) { | |
2265 | del_timer(&usbvision->powerOffTimer); | |
2266 | } | |
2267 | } | |
781aa1d1 MCC |
2268 | |
2269 | /* | |
2270 | * usbvision_begin_streaming() | |
2271 | * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no | |
2272 | * idea about the rest | |
2273 | */ | |
483dfdb6 | 2274 | int usbvision_begin_streaming(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2275 | { |
2276 | int errCode = 0; | |
2277 | ||
2278 | if (usbvision->isocMode == ISOC_MODE_COMPRESS) { | |
2279 | usbvision_init_compression(usbvision); | |
2280 | } | |
2281 | errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID | | |
2282 | usbvision->Vin_Reg2_Preset); | |
2283 | return errCode; | |
2284 | } | |
2285 | ||
2286 | /* | |
2287 | * usbvision_restart_isoc() | |
2288 | * Not sure yet if touching here PWR_REG make loose the config | |
2289 | */ | |
2290 | ||
483dfdb6 | 2291 | int usbvision_restart_isoc(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2292 | { |
2293 | int ret; | |
2294 | ||
2295 | if ( | |
2296 | (ret = | |
2297 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, | |
2298 | USBVISION_SSPND_EN | USBVISION_PWR_VID)) < 0) | |
2299 | return ret; | |
2300 | if ( | |
2301 | (ret = | |
2302 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, | |
2303 | USBVISION_SSPND_EN | USBVISION_PWR_VID | | |
2304 | USBVISION_RES2)) < 0) | |
2305 | return ret; | |
2306 | if ( | |
2307 | (ret = | |
2308 | usbvision_write_reg(usbvision, USBVISION_VIN_REG2, | |
2309 | USBVISION_KEEP_BLANK | USBVISION_NOHVALID | | |
2310 | usbvision->Vin_Reg2_Preset)) < 0) return ret; | |
2311 | ||
2312 | /* TODO: schedule timeout */ | |
70bdd9c8 | 2313 | while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) & 0x01) != 1); |
781aa1d1 MCC |
2314 | |
2315 | return 0; | |
2316 | } | |
2317 | ||
483dfdb6 | 2318 | int usbvision_audio_off(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2319 | { |
2320 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) { | |
2321 | printk(KERN_ERR "usbvision_audio_off: can't wirte reg\n"); | |
2322 | return -1; | |
2323 | } | |
781aa1d1 MCC |
2324 | usbvision->AudioMute = 0; |
2325 | usbvision->AudioChannel = USBVISION_AUDIO_MUTE; | |
2326 | return 0; | |
2327 | } | |
2328 | ||
483dfdb6 | 2329 | int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel) |
781aa1d1 MCC |
2330 | { |
2331 | if (!usbvision->AudioMute) { | |
2332 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) { | |
2333 | printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n"); | |
2334 | return -1; | |
2335 | } | |
2336 | } | |
781aa1d1 MCC |
2337 | usbvision->AudioChannel = AudioChannel; |
2338 | return 0; | |
2339 | } | |
2340 | ||
483dfdb6 | 2341 | int usbvision_setup(struct usb_usbvision *usbvision,int format) |
781aa1d1 | 2342 | { |
483dfdb6 | 2343 | usbvision_set_video_format(usbvision, format); |
781aa1d1 MCC |
2344 | usbvision_set_dram_settings(usbvision); |
2345 | usbvision_set_compress_params(usbvision); | |
2346 | usbvision_set_input(usbvision); | |
2347 | usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT); | |
2348 | usbvision_restart_isoc(usbvision); | |
18d8a454 | 2349 | |
781aa1d1 MCC |
2350 | /* cosas del PCM */ |
2351 | return USBVISION_IS_OPERATIONAL(usbvision); | |
2352 | } | |
2353 | ||
483dfdb6 TM |
2354 | /* |
2355 | * usbvision_init_isoc() | |
2356 | * | |
2357 | */ | |
2358 | int usbvision_init_isoc(struct usb_usbvision *usbvision) | |
2359 | { | |
2360 | struct usb_device *dev = usbvision->dev; | |
2361 | int bufIdx, errCode, regValue; | |
38284ba3 | 2362 | const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE; |
483dfdb6 TM |
2363 | |
2364 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
2365 | return -EFAULT; | |
2366 | ||
2367 | usbvision->curFrame = NULL; | |
2368 | scratch_reset(usbvision); | |
2369 | ||
2370 | /* Alternate interface 1 is is the biggest frame size */ | |
781aa1d1 MCC |
2371 | errCode = usb_set_interface(dev, usbvision->iface, usbvision->ifaceAltActive); |
2372 | if (errCode < 0) { | |
2373 | usbvision->last_error = errCode; | |
2374 | return -EBUSY; | |
2375 | } | |
2376 | ||
2377 | regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; | |
2378 | usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1; | |
2379 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize); | |
2380 | ||
2381 | usbvision->usb_bandwidth = regValue >> 1; | |
2382 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth); | |
2383 | ||
2384 | ||
2385 | ||
2386 | /* We double buffer the Iso lists */ | |
2387 | ||
2388 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { | |
2389 | int j, k; | |
2390 | struct urb *urb; | |
2391 | ||
a1ed551c | 2392 | urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
781aa1d1 MCC |
2393 | if (urb == NULL) { |
2394 | err("%s: usb_alloc_urb() failed", __FUNCTION__); | |
2395 | return -ENOMEM; | |
2396 | } | |
2397 | usbvision->sbuf[bufIdx].urb = urb; | |
38284ba3 | 2398 | usbvision->sbuf[bufIdx].data = usb_buffer_alloc(usbvision->dev, sb_size, GFP_KERNEL,&urb->transfer_dma); |
781aa1d1 MCC |
2399 | urb->dev = dev; |
2400 | urb->context = usbvision; | |
2401 | urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp); | |
781aa1d1 MCC |
2402 | urb->transfer_flags = URB_ISO_ASAP; |
2403 | urb->interval = 1; | |
781aa1d1 MCC |
2404 | urb->transfer_buffer = usbvision->sbuf[bufIdx].data; |
2405 | urb->complete = usbvision_isocIrq; | |
2406 | urb->number_of_packets = USBVISION_URB_FRAMES; | |
2407 | urb->transfer_buffer_length = | |
2408 | usbvision->isocPacketSize * USBVISION_URB_FRAMES; | |
2409 | for (j = k = 0; j < USBVISION_URB_FRAMES; j++, | |
2410 | k += usbvision->isocPacketSize) { | |
2411 | urb->iso_frame_desc[j].offset = k; | |
2412 | urb->iso_frame_desc[j].length = usbvision->isocPacketSize; | |
2413 | } | |
2414 | } | |
2415 | ||
2416 | ||
2417 | /* Submit all URBs */ | |
2418 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { | |
781aa1d1 | 2419 | errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, GFP_KERNEL); |
781aa1d1 MCC |
2420 | if (errCode) { |
2421 | err("%s: usb_submit_urb(%d) failed: error %d", __FUNCTION__, bufIdx, errCode); | |
2422 | } | |
2423 | } | |
2424 | ||
5f7fb877 | 2425 | usbvision->streaming = Stream_Idle; |
781aa1d1 MCC |
2426 | PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", __FUNCTION__, usbvision->video_endp); |
2427 | return 0; | |
2428 | } | |
2429 | ||
2430 | /* | |
2431 | * usbvision_stop_isoc() | |
2432 | * | |
2433 | * This procedure stops streaming and deallocates URBs. Then it | |
2434 | * activates zero-bandwidth alt. setting of the video interface. | |
2435 | * | |
2436 | */ | |
483dfdb6 | 2437 | void usbvision_stop_isoc(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2438 | { |
2439 | int bufIdx, errCode, regValue; | |
38284ba3 | 2440 | const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE; |
781aa1d1 | 2441 | |
5f7fb877 | 2442 | if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL)) |
781aa1d1 MCC |
2443 | return; |
2444 | ||
2445 | /* Unschedule all of the iso td's */ | |
2446 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { | |
2447 | usb_kill_urb(usbvision->sbuf[bufIdx].urb); | |
38284ba3 TM |
2448 | if (usbvision->sbuf[bufIdx].data){ |
2449 | usb_buffer_free(usbvision->dev, | |
2450 | sb_size, | |
2451 | usbvision->sbuf[bufIdx].data, | |
2452 | usbvision->sbuf[bufIdx].urb->transfer_dma); | |
2453 | } | |
781aa1d1 MCC |
2454 | usb_free_urb(usbvision->sbuf[bufIdx].urb); |
2455 | usbvision->sbuf[bufIdx].urb = NULL; | |
18d8a454 | 2456 | } |
781aa1d1 MCC |
2457 | |
2458 | ||
f2242ee5 TM |
2459 | PDEBUG(DBG_ISOC, "%s: streaming=Stream_Off\n", __FUNCTION__); |
2460 | usbvision->streaming = Stream_Off; | |
781aa1d1 MCC |
2461 | |
2462 | if (!usbvision->remove_pending) { | |
2463 | ||
2464 | /* Set packet size to 0 */ | |
2465 | errCode = usb_set_interface(usbvision->dev, usbvision->iface, | |
2466 | usbvision->ifaceAltInactive); | |
2467 | if (errCode < 0) { | |
2468 | err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode); | |
2469 | usbvision->last_error = errCode; | |
2470 | } | |
2471 | regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; | |
2472 | usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1; | |
2473 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize); | |
2474 | ||
2475 | usbvision->usb_bandwidth = regValue >> 1; | |
2476 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth); | |
2477 | } | |
2478 | } | |
2479 | ||
483dfdb6 | 2480 | int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) |
781aa1d1 MCC |
2481 | { |
2482 | int mode[4]; | |
18d8a454 | 2483 | int audio[]= {1, 0, 0, 0}; |
781aa1d1 MCC |
2484 | struct v4l2_routing route; |
2485 | //channel 0 is TV with audiochannel 1 (tuner mono) | |
2486 | //channel 1 is Composite with audio channel 0 (line in) | |
2487 | //channel 2 is S-Video with audio channel 0 (line in) | |
2488 | //channel 3 is additional video inputs to the device with audio channel 0 (line in) | |
2489 | ||
2490 | RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs); | |
f2242ee5 | 2491 | usbvision->ctl_input = channel; |
781aa1d1 MCC |
2492 | route.input = SAA7115_COMPOSITE1; |
2493 | call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route); | |
f2242ee5 | 2494 | call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->ctl_input); |
781aa1d1 MCC |
2495 | |
2496 | // set the new channel | |
2497 | // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video | |
18d8a454 | 2498 | // Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red |
781aa1d1 MCC |
2499 | |
2500 | switch (usbvision_device_data[usbvision->DevModel].Codec) { | |
2501 | case CODEC_SAA7113: | |
2502 | if (SwitchSVideoInput) { // To handle problems with S-Video Input for some devices. Use SwitchSVideoInput parameter when loading the module. | |
2503 | mode[2] = 1; | |
2504 | } | |
2505 | else { | |
2506 | mode[2] = 7; | |
2507 | } | |
18d8a454 | 2508 | if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { |
781aa1d1 MCC |
2509 | mode[0] = 0; mode[1] = 2; mode[3] = 3; // Special for four input devices |
2510 | } | |
18d8a454 | 2511 | else { |
781aa1d1 MCC |
2512 | mode[0] = 0; mode[1] = 2; //modes for regular saa7113 devices |
2513 | } | |
2514 | break; | |
2515 | case CODEC_SAA7111: | |
2516 | mode[0] = 0; mode[1] = 1; mode[2] = 7; //modes for saa7111 | |
2517 | break; | |
2518 | default: | |
2519 | mode[0] = 0; mode[1] = 1; mode[2] = 7; //default modes | |
2520 | } | |
2521 | route.input = mode[channel]; | |
2522 | call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route); | |
2523 | usbvision->channel = channel; | |
2524 | usbvision_set_audio(usbvision, audio[channel]); | |
2525 | return 0; | |
2526 | } | |
2527 | ||
781aa1d1 MCC |
2528 | /* |
2529 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
2530 | * --------------------------------------------------------------------------- | |
2531 | * Local variables: | |
2532 | * c-basic-offset: 8 | |
2533 | * End: | |
2534 | */ |