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Pull platform-drivers into test branch
[linux-2.6/x86.git] / drivers / media / video / zoran_driver.c
blob862a984c2155c6d8a739f54f4007f90b1a20f13b
1 /*
2 * Zoran zr36057/zr36067 PCI controller driver, for the
3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
4 * Media Labs LML33/LML33R10.
5 *
6 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
7 *
8 * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
9 *
10 * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
11 *
12 * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
13 *
14 * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
15 *
16 * Based on
17 *
18 * Miro DC10 driver
19 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
20 *
21 * Iomega Buz driver version 1.0
22 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
23 *
24 * buz.0.0.3
25 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
26 *
27 * bttv - Bt848 frame grabber driver
28 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
29 * & Marcus Metzler (mocm@thp.uni-koeln.de)
30 *
31 *
32 * This program is free software; you can redistribute it and/or modify
33 * it under the terms of the GNU General Public License as published by
34 * the Free Software Foundation; either version 2 of the License, or
35 * (at your option) any later version.
36 *
37 * This program is distributed in the hope that it will be useful,
38 * but WITHOUT ANY WARRANTY; without even the implied warranty of
39 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
40 * GNU General Public License for more details.
41 *
42 * You should have received a copy of the GNU General Public License
43 * along with this program; if not, write to the Free Software
44 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
45 */
46
47 #include <linux/version.h>
48 #include <linux/init.h>
49 #include <linux/module.h>
50 #include <linux/delay.h>
51 #include <linux/slab.h>
52 #include <linux/pci.h>
53 #include <linux/vmalloc.h>
54 #include <linux/wait.h>
55 #include <linux/byteorder/generic.h>
56
57 #include <linux/interrupt.h>
58 #include <linux/i2c.h>
59 #include <linux/i2c-algo-bit.h>
60
61 #include <linux/spinlock.h>
62 #define MAP_NR(x) virt_to_page(x)
63 #define ZORAN_HARDWARE VID_HARDWARE_ZR36067
64 #define ZORAN_VID_TYPE ( \
65 VID_TYPE_CAPTURE | \
66 VID_TYPE_OVERLAY | \
67 VID_TYPE_CLIPPING | \
68 VID_TYPE_FRAMERAM | \
69 VID_TYPE_SCALES | \
70 VID_TYPE_MJPEG_DECODER | \
71 VID_TYPE_MJPEG_ENCODER \
72 )
73
74 #include <linux/videodev.h>
75 #include <media/v4l2-common.h>
76 #include "videocodec.h"
77
78 #include <asm/io.h>
79 #include <asm/uaccess.h>
80 #include <linux/proc_fs.h>
81
82 #include <linux/video_decoder.h>
83 #include <linux/video_encoder.h>
84 #include <linux/mutex.h>
85 #include "zoran.h"
86 #include "zoran_device.h"
87 #include "zoran_card.h"
88
89 #ifdef CONFIG_VIDEO_V4L2
90 /* we declare some card type definitions here, they mean
91 * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
92 #define ZORAN_V4L2_VID_FLAGS ( \
93 V4L2_CAP_STREAMING |\
94 V4L2_CAP_VIDEO_CAPTURE |\
95 V4L2_CAP_VIDEO_OUTPUT |\
96 V4L2_CAP_VIDEO_OVERLAY \
97 )
98 #endif
99
100 #include <asm/byteorder.h>
101
102 const struct zoran_format zoran_formats[] = {
103 {
104 .name = "15-bit RGB",
105 .palette = VIDEO_PALETTE_RGB555,
106 #ifdef CONFIG_VIDEO_V4L2
107 #ifdef __LITTLE_ENDIAN
108 .fourcc = V4L2_PIX_FMT_RGB555,
109 #else
110 .fourcc = V4L2_PIX_FMT_RGB555X,
111 #endif
112 .colorspace = V4L2_COLORSPACE_SRGB,
113 #endif
114 .depth = 15,
115 .flags = ZORAN_FORMAT_CAPTURE |
116 ZORAN_FORMAT_OVERLAY,
117 }, {
118 .name = "16-bit RGB",
119 .palette = VIDEO_PALETTE_RGB565,
120 #ifdef CONFIG_VIDEO_V4L2
121 #ifdef __LITTLE_ENDIAN
122 .fourcc = V4L2_PIX_FMT_RGB565,
123 #else
124 .fourcc = V4L2_PIX_FMT_RGB565X,
125 #endif
126 .colorspace = V4L2_COLORSPACE_SRGB,
127 #endif
128 .depth = 16,
129 .flags = ZORAN_FORMAT_CAPTURE |
130 ZORAN_FORMAT_OVERLAY,
131 }, {
132 .name = "24-bit RGB",
133 .palette = VIDEO_PALETTE_RGB24,
134 #ifdef CONFIG_VIDEO_V4L2
135 #ifdef __LITTLE_ENDIAN
136 .fourcc = V4L2_PIX_FMT_BGR24,
137 #else
138 .fourcc = V4L2_PIX_FMT_RGB24,
139 #endif
140 .colorspace = V4L2_COLORSPACE_SRGB,
141 #endif
142 .depth = 24,
143 .flags = ZORAN_FORMAT_CAPTURE |
144 ZORAN_FORMAT_OVERLAY,
145 }, {
146 .name = "32-bit RGB",
147 .palette = VIDEO_PALETTE_RGB32,
148 #ifdef CONFIG_VIDEO_V4L2
149 #ifdef __LITTLE_ENDIAN
150 .fourcc = V4L2_PIX_FMT_BGR32,
151 #else
152 .fourcc = V4L2_PIX_FMT_RGB32,
153 #endif
154 .colorspace = V4L2_COLORSPACE_SRGB,
155 #endif
156 .depth = 32,
157 .flags = ZORAN_FORMAT_CAPTURE |
158 ZORAN_FORMAT_OVERLAY,
159 }, {
160 .name = "4:2:2, packed, YUYV",
161 .palette = VIDEO_PALETTE_YUV422,
162 #ifdef CONFIG_VIDEO_V4L2
163 .fourcc = V4L2_PIX_FMT_YUYV,
164 .colorspace = V4L2_COLORSPACE_SMPTE170M,
165 #endif
166 .depth = 16,
167 .flags = ZORAN_FORMAT_CAPTURE |
168 ZORAN_FORMAT_OVERLAY,
169 }, {
170 .name = "Hardware-encoded Motion-JPEG",
171 .palette = -1,
172 #ifdef CONFIG_VIDEO_V4L2
173 .fourcc = V4L2_PIX_FMT_MJPEG,
174 .colorspace = V4L2_COLORSPACE_SMPTE170M,
175 #endif
176 .depth = 0,
177 .flags = ZORAN_FORMAT_CAPTURE |
178 ZORAN_FORMAT_PLAYBACK |
179 ZORAN_FORMAT_COMPRESSED,
180 }
181 };
182 static const int zoran_num_formats =
183 (sizeof(zoran_formats) / sizeof(struct zoran_format));
184
185 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
186 #if !defined(CONFIG_BIGPHYS_AREA)
187 //#undef CONFIG_BIGPHYS_AREA
188 #define BUZ_USE_HIMEM
189 #endif
190
191 #if defined(CONFIG_BIGPHYS_AREA)
192 # include <linux/bigphysarea.h>
193 #endif
194
195 extern int *zr_debug;
196
197 #define dprintk(num, format, args...) \
198 do { \
199 if (*zr_debug >= num) \
200 printk(format, ##args); \
201 } while (0)
202
203 extern int v4l_nbufs;
204 extern int v4l_bufsize;
205 extern int jpg_nbufs;
206 extern int jpg_bufsize;
207 extern int pass_through;
208
209 static int lock_norm = 0; /* 1=Don't change TV standard (norm) */
210 module_param(lock_norm, int, 0);
211 MODULE_PARM_DESC(lock_norm, "Users can't change norm");
212
213 #ifdef CONFIG_VIDEO_V4L2
214 /* small helper function for calculating buffersizes for v4l2
215 * we calculate the nearest higher power-of-two, which
216 * will be the recommended buffersize */
217 static __u32
218 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
219 {
220 __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
221 __u32 num = (1024 * 512) / (div);
222 __u32 result = 2;
223
224 num--;
225 while (num) {
226 num >>= 1;
227 result <<= 1;
228 }
229
230 if (result > jpg_bufsize)
231 return jpg_bufsize;
232 if (result < 8192)
233 return 8192;
234 return result;
235 }
236 #endif
237
238 /* forward references */
239 static void v4l_fbuffer_free(struct file *file);
240 static void jpg_fbuffer_free(struct file *file);
241
242 /*
243 * Allocate the V4L grab buffers
244 *
245 * These have to be pysically contiguous.
246 * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
247 * else we try to allocate them with bigphysarea_alloc_pages
248 * if the bigphysarea patch is present in the kernel,
249 * else we try to use high memory (if the user has bootet
250 * Linux with the necessary memory left over).
251 */
252
253 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
254 static unsigned long
255 get_high_mem (unsigned long size)
256 {
257 /*
258 * Check if there is usable memory at the end of Linux memory
259 * of at least size. Return the physical address of this memory,
260 * return 0 on failure.
261 *
262 * The idea is from Alexandro Rubini's book "Linux device drivers".
263 * The driver from him which is downloadable from O'Reilly's
264 * web site misses the "virt_to_phys(high_memory)" part
265 * (and therefore doesn't work at all - at least with 2.2.x kernels).
266 *
267 * It should be unnecessary to mention that THIS IS DANGEROUS,
268 * if more than one driver at a time has the idea to use this memory!!!!
269 */
270
271 volatile unsigned char __iomem *mem;
272 unsigned char c;
273 unsigned long hi_mem_ph;
274 unsigned long i;
275
276 /* Map the high memory to user space */
277
278 hi_mem_ph = virt_to_phys(high_memory);
279
280 mem = ioremap(hi_mem_ph, size);
281 if (!mem) {
282 dprintk(1,
283 KERN_ERR "%s: get_high_mem() - ioremap failed\n",
284 ZORAN_NAME);
285 return 0;
286 }
287
288 for (i = 0; i < size; i++) {
289 /* Check if it is memory */
290 c = i & 0xff;
291 writeb(c, mem + i);
292 if (readb(mem + i) != c)
293 break;
294 c = 255 - c;
295 writeb(c, mem + i);
296 if (readb(mem + i) != c)
297 break;
298 writeb(0, mem + i); /* zero out memory */
299
300 /* give the kernel air to breath */
301 if ((i & 0x3ffff) == 0x3ffff)
302 schedule();
303 }
304
305 iounmap(mem);
306
307 if (i != size) {
308 dprintk(1,
309 KERN_ERR
310 "%s: get_high_mem() - requested %lu, avail %lu\n",
311 ZORAN_NAME, size, i);
312 return 0;
313 }
314
315 return hi_mem_ph;
316 }
317 #endif
318
319 static int
320 v4l_fbuffer_alloc (struct file *file)
321 {
322 struct zoran_fh *fh = file->private_data;
323 struct zoran *zr = fh->zr;
324 int i, off;
325 unsigned char *mem;
326 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
327 unsigned long pmem = 0;
328 #endif
329
330 /* we might have old buffers lying around... */
331 if (fh->v4l_buffers.ready_to_be_freed) {
332 v4l_fbuffer_free(file);
333 }
334
335 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
336 if (fh->v4l_buffers.buffer[i].fbuffer)
337 dprintk(2,
338 KERN_WARNING
339 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
340 ZR_DEVNAME(zr), i);
341
342 //udelay(20);
343 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
344 /* Use kmalloc */
345
346 mem =
347 (unsigned char *) kmalloc(fh->v4l_buffers.
348 buffer_size,
349 GFP_KERNEL);
350 if (mem == 0) {
351 dprintk(1,
352 KERN_ERR
353 "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
354 ZR_DEVNAME(zr), i);
355 v4l_fbuffer_free(file);
356 return -ENOBUFS;
357 }
358 fh->v4l_buffers.buffer[i].fbuffer = mem;
359 fh->v4l_buffers.buffer[i].fbuffer_phys =
360 virt_to_phys(mem);
361 fh->v4l_buffers.buffer[i].fbuffer_bus =
362 virt_to_bus(mem);
363 for (off = 0; off < fh->v4l_buffers.buffer_size;
364 off += PAGE_SIZE)
365 SetPageReserved(MAP_NR(mem + off));
366 dprintk(4,
367 KERN_INFO
368 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
369 ZR_DEVNAME(zr), i, (unsigned long) mem,
370 virt_to_bus(mem));
371 } else {
372 #if defined(CONFIG_BIGPHYS_AREA)
373 /* Use bigphysarea_alloc_pages */
374
375 int n =
376 (fh->v4l_buffers.buffer_size + PAGE_SIZE -
377 1) / PAGE_SIZE;
378
379 mem =
380 (unsigned char *) bigphysarea_alloc_pages(n, 0,
381 GFP_KERNEL);
382 if (mem == 0) {
383 dprintk(1,
384 KERN_ERR
385 "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
386 ZR_DEVNAME(zr), i);
387 v4l_fbuffer_free(file);
388 return -ENOBUFS;
389 }
390 fh->v4l_buffers.buffer[i].fbuffer = mem;
391 fh->v4l_buffers.buffer[i].fbuffer_phys =
392 virt_to_phys(mem);
393 fh->v4l_buffers.buffer[i].fbuffer_bus =
394 virt_to_bus(mem);
395 dprintk(4,
396 KERN_INFO
397 "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
398 ZR_DEVNAME(zr), i, (unsigned) mem,
399 (unsigned) virt_to_bus(mem));
400
401 /* Zero out the allocated memory */
402 memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
403 fh->v4l_buffers.buffer_size);
404 #elif defined(BUZ_USE_HIMEM)
405
406 /* Use high memory which has been left at boot time */
407
408 /* Ok., Ok. this is an evil hack - we make
409 * the assumption that physical addresses are
410 * the same as bus addresses (true at least
411 * for Intel processors). The whole method of
412 * obtaining and using this memory is not very
413 * nice - but I hope it saves some poor users
414 * from kernel hacking, which might have even
415 * more evil results */
416
417 if (i == 0) {
418 int size =
419 fh->v4l_buffers.num_buffers *
420 fh->v4l_buffers.buffer_size;
421
422 pmem = get_high_mem(size);
423 if (pmem == 0) {
424 dprintk(1,
425 KERN_ERR
426 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
427 ZR_DEVNAME(zr), size >> 10);
428 return -ENOBUFS;
429 }
430 fh->v4l_buffers.buffer[0].fbuffer = NULL;
431 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
432 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
433 dprintk(4,
434 KERN_INFO
435 "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
436 ZR_DEVNAME(zr), size >> 10);
437 } else {
438 fh->v4l_buffers.buffer[i].fbuffer = NULL;
439 fh->v4l_buffers.buffer[i].fbuffer_phys =
440 pmem + i * fh->v4l_buffers.buffer_size;
441 fh->v4l_buffers.buffer[i].fbuffer_bus =
442 pmem + i * fh->v4l_buffers.buffer_size;
443 }
444 #else
445 /* No bigphysarea present, usage of high memory disabled,
446 * but user wants buffers of more than MAX_KMALLOC_MEM */
447 dprintk(1,
448 KERN_ERR
449 "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
450 ZR_DEVNAME(zr));
451 dprintk(1,
452 KERN_ERR
453 "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
454 ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
455 fh->v4l_buffers.buffer_size >> 10);
456 return -ENOBUFS;
457 #endif
458 }
459 }
460
461 fh->v4l_buffers.allocated = 1;
462
463 return 0;
464 }
465
466 /* free the V4L grab buffers */
467 static void
468 v4l_fbuffer_free (struct file *file)
469 {
470 struct zoran_fh *fh = file->private_data;
471 struct zoran *zr = fh->zr;
472 int i, off;
473 unsigned char *mem;
474
475 dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
476
477 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
478 if (!fh->v4l_buffers.buffer[i].fbuffer)
479 continue;
480
481 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
482 mem = fh->v4l_buffers.buffer[i].fbuffer;
483 for (off = 0; off < fh->v4l_buffers.buffer_size;
484 off += PAGE_SIZE)
485 ClearPageReserved(MAP_NR(mem + off));
486 kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
487 }
488 #if defined(CONFIG_BIGPHYS_AREA)
489 else
490 bigphysarea_free_pages((void *) fh->v4l_buffers.
491 buffer[i].fbuffer);
492 #endif
493 fh->v4l_buffers.buffer[i].fbuffer = NULL;
494 }
495
496 fh->v4l_buffers.allocated = 0;
497 fh->v4l_buffers.ready_to_be_freed = 0;
498 }
499
500 /*
501 * Allocate the MJPEG grab buffers.
502 *
503 * If the requested buffer size is smaller than MAX_KMALLOC_MEM,
504 * kmalloc is used to request a physically contiguous area,
505 * else we allocate the memory in framgents with get_zeroed_page.
506 *
507 * If a Natoma chipset is present and this is a revision 1 zr36057,
508 * each MJPEG buffer needs to be physically contiguous.
509 * (RJ: This statement is from Dave Perks' original driver,
510 * I could never check it because I have a zr36067)
511 * The driver cares about this because it reduces the buffer
512 * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
513 *
514 * RJ: The contents grab buffers needs never be accessed in the driver.
515 * Therefore there is no need to allocate them with vmalloc in order
516 * to get a contiguous virtual memory space.
517 * I don't understand why many other drivers first allocate them with
518 * vmalloc (which uses internally also get_zeroed_page, but delivers you
519 * virtual addresses) and then again have to make a lot of efforts
520 * to get the physical address.
521 *
522 * Ben Capper:
523 * On big-endian architectures (such as ppc) some extra steps
524 * are needed. When reading and writing to the stat_com array
525 * and fragment buffers, the device expects to see little-
526 * endian values. The use of cpu_to_le32() and le32_to_cpu()
527 * in this function (and one or two others in zoran_device.c)
528 * ensure that these values are always stored in little-endian
529 * form, regardless of architecture. The zr36057 does Very Bad
530 * Things on big endian architectures if the stat_com array
531 * and fragment buffers are not little-endian.
532 */
533
534 static int
535 jpg_fbuffer_alloc (struct file *file)
536 {
537 struct zoran_fh *fh = file->private_data;
538 struct zoran *zr = fh->zr;
539 int i, j, off;
540 unsigned long mem;
541
542 /* we might have old buffers lying around */
543 if (fh->jpg_buffers.ready_to_be_freed) {
544 jpg_fbuffer_free(file);
545 }
546
547 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
548 if (fh->jpg_buffers.buffer[i].frag_tab)
549 dprintk(2,
550 KERN_WARNING
551 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
552 ZR_DEVNAME(zr), i);
553
554 /* Allocate fragment table for this buffer */
555
556 mem = get_zeroed_page(GFP_KERNEL);
557 if (mem == 0) {
558 dprintk(1,
559 KERN_ERR
560 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
561 ZR_DEVNAME(zr), i);
562 jpg_fbuffer_free(file);
563 return -ENOBUFS;
564 }
565 memset((void *) mem, 0, PAGE_SIZE);
566 fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
567 fh->jpg_buffers.buffer[i].frag_tab_bus =
568 virt_to_bus((void *) mem);
569
570 //if (alloc_contig) {
571 if (fh->jpg_buffers.need_contiguous) {
572 mem =
573 (unsigned long) kmalloc(fh->jpg_buffers.
574 buffer_size,
575 GFP_KERNEL);
576 if (mem == 0) {
577 dprintk(1,
578 KERN_ERR
579 "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
580 ZR_DEVNAME(zr), i);
581 jpg_fbuffer_free(file);
582 return -ENOBUFS;
583 }
584 fh->jpg_buffers.buffer[i].frag_tab[0] =
585 cpu_to_le32(virt_to_bus((void *) mem));
586 fh->jpg_buffers.buffer[i].frag_tab[1] =
587 cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
588 for (off = 0; off < fh->jpg_buffers.buffer_size;
589 off += PAGE_SIZE)
590 SetPageReserved(MAP_NR(mem + off));
591 } else {
592 /* jpg_bufsize is allreay page aligned */
593 for (j = 0;
594 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
595 j++) {
596 mem = get_zeroed_page(GFP_KERNEL);
597 if (mem == 0) {
598 dprintk(1,
599 KERN_ERR
600 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
601 ZR_DEVNAME(zr), i);
602 jpg_fbuffer_free(file);
603 return -ENOBUFS;
604 }
605
606 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
607 cpu_to_le32(virt_to_bus((void *) mem));
608 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
609 1] =
610 cpu_to_le32((PAGE_SIZE / 4) << 1);
611 SetPageReserved(MAP_NR(mem));
612 }
613
614 fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
615 }
616 }
617
618 dprintk(4,
619 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
620 ZR_DEVNAME(zr),
621 (fh->jpg_buffers.num_buffers *
622 fh->jpg_buffers.buffer_size) >> 10);
623
624 fh->jpg_buffers.allocated = 1;
625
626 return 0;
627 }
628
629 /* free the MJPEG grab buffers */
630 static void
631 jpg_fbuffer_free (struct file *file)
632 {
633 struct zoran_fh *fh = file->private_data;
634 struct zoran *zr = fh->zr;
635 int i, j, off;
636 unsigned char *mem;
637
638 dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
639
640 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
641 if (!fh->jpg_buffers.buffer[i].frag_tab)
642 continue;
643
644 //if (alloc_contig) {
645 if (fh->jpg_buffers.need_contiguous) {
646 if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
647 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
648 fh->jpg_buffers.buffer[i].frag_tab[0]));
649 for (off = 0;
650 off < fh->jpg_buffers.buffer_size;
651 off += PAGE_SIZE)
652 ClearPageReserved(MAP_NR
653 (mem + off));
654 kfree(mem);
655 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
656 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
657 }
658 } else {
659 for (j = 0;
660 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
661 j++) {
662 if (!fh->jpg_buffers.buffer[i].
663 frag_tab[2 * j])
664 break;
665 ClearPageReserved(MAP_NR
666 (bus_to_virt
667 (le32_to_cpu
668 (fh->jpg_buffers.
669 buffer[i].frag_tab[2 *
670 j]))));
671 free_page((unsigned long)
672 bus_to_virt
673 (le32_to_cpu
674 (fh->jpg_buffers.
675 buffer[i].
676 frag_tab[2 * j])));
677 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
678 0;
679 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
680 1] = 0;
681 }
682 }
683
684 free_page((unsigned long) fh->jpg_buffers.buffer[i].
685 frag_tab);
686 fh->jpg_buffers.buffer[i].frag_tab = NULL;
687 }
688
689 fh->jpg_buffers.allocated = 0;
690 fh->jpg_buffers.ready_to_be_freed = 0;
691 }
692
693 /*
694 * V4L Buffer grabbing
695 */
696
697 static int
698 zoran_v4l_set_format (struct file *file,
699 int width,
700 int height,
701 const struct zoran_format *format)
702 {
703 struct zoran_fh *fh = file->private_data;
704 struct zoran *zr = fh->zr;
705 int bpp;
706
707 /* Check size and format of the grab wanted */
708
709 if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
710 height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
711 dprintk(1,
712 KERN_ERR
713 "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
714 ZR_DEVNAME(zr), width, height);
715 return -EINVAL;
716 }
717
718 bpp = (format->depth + 7) / 8;
719
720 /* Check against available buffer size */
721 if (height * width * bpp > fh->v4l_buffers.buffer_size) {
722 dprintk(1,
723 KERN_ERR
724 "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
725 ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
726 return -EINVAL;
727 }
728
729 /* The video front end needs 4-byte alinged line sizes */
730
731 if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
732 dprintk(1,
733 KERN_ERR
734 "%s: v4l_set_format() - wrong frame alingment\n",
735 ZR_DEVNAME(zr));
736 return -EINVAL;
737 }
738
739 fh->v4l_settings.width = width;
740 fh->v4l_settings.height = height;
741 fh->v4l_settings.format = format;
742 fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
743
744 return 0;
745 }
746
747 static int
748 zoran_v4l_queue_frame (struct file *file,
749 int num)
750 {
751 struct zoran_fh *fh = file->private_data;
752 struct zoran *zr = fh->zr;
753 unsigned long flags;
754 int res = 0;
755
756 if (!fh->v4l_buffers.allocated) {
757 dprintk(1,
758 KERN_ERR
759 "%s: v4l_queue_frame() - buffers not yet allocated\n",
760 ZR_DEVNAME(zr));
761 res = -ENOMEM;
762 }
763
764 /* No grabbing outside the buffer range! */
765 if (num >= fh->v4l_buffers.num_buffers || num < 0) {
766 dprintk(1,
767 KERN_ERR
768 "%s: v4l_queue_frame() - buffer %d is out of range\n",
769 ZR_DEVNAME(zr), num);
770 res = -EINVAL;
771 }
772
773 spin_lock_irqsave(&zr->spinlock, flags);
774
775 if (fh->v4l_buffers.active == ZORAN_FREE) {
776 if (zr->v4l_buffers.active == ZORAN_FREE) {
777 zr->v4l_buffers = fh->v4l_buffers;
778 fh->v4l_buffers.active = ZORAN_ACTIVE;
779 } else {
780 dprintk(1,
781 KERN_ERR
782 "%s: v4l_queue_frame() - another session is already capturing\n",
783 ZR_DEVNAME(zr));
784 res = -EBUSY;
785 }
786 }
787
788 /* make sure a grab isn't going on currently with this buffer */
789 if (!res) {
790 switch (zr->v4l_buffers.buffer[num].state) {
791 default:
792 case BUZ_STATE_PEND:
793 if (zr->v4l_buffers.active == ZORAN_FREE) {
794 fh->v4l_buffers.active = ZORAN_FREE;
795 zr->v4l_buffers.allocated = 0;
796 }
797 res = -EBUSY; /* what are you doing? */
798 break;
799 case BUZ_STATE_DONE:
800 dprintk(2,
801 KERN_WARNING
802 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
803 ZR_DEVNAME(zr), num);
804 case BUZ_STATE_USER:
805 /* since there is at least one unused buffer there's room for at least
806 * one more pend[] entry */
807 zr->v4l_pend[zr->v4l_pend_head++ &
808 V4L_MASK_FRAME] = num;
809 zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
810 zr->v4l_buffers.buffer[num].bs.length =
811 fh->v4l_settings.bytesperline *
812 zr->v4l_settings.height;
813 fh->v4l_buffers.buffer[num] =
814 zr->v4l_buffers.buffer[num];
815 break;
816 }
817 }
818
819 spin_unlock_irqrestore(&zr->spinlock, flags);
820
821 if (!res && zr->v4l_buffers.active == ZORAN_FREE)
822 zr->v4l_buffers.active = fh->v4l_buffers.active;
823
824 return res;
825 }
826
827 static int
828 v4l_grab (struct file *file,
829 struct video_mmap *mp)
830 {
831 struct zoran_fh *fh = file->private_data;
832 struct zoran *zr = fh->zr;
833 int res = 0, i;
834
835 for (i = 0; i < zoran_num_formats; i++) {
836 if (zoran_formats[i].palette == mp->format &&
837 zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
838 !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
839 break;
840 }
841 if (i == zoran_num_formats || zoran_formats[i].depth == 0) {
842 dprintk(1,
843 KERN_ERR
844 "%s: v4l_grab() - wrong bytes-per-pixel format\n",
845 ZR_DEVNAME(zr));
846 return -EINVAL;
847 }
848
849 /*
850 * To minimize the time spent in the IRQ routine, we avoid setting up
851 * the video front end there.
852 * If this grab has different parameters from a running streaming capture
853 * we stop the streaming capture and start it over again.
854 */
855 if (zr->v4l_memgrab_active &&
856 (zr->v4l_settings.width != mp->width ||
857 zr->v4l_settings.height != mp->height ||
858 zr->v4l_settings.format->palette != mp->format)) {
859 res = wait_grab_pending(zr);
860 if (res)
861 return res;
862 }
863 if ((res = zoran_v4l_set_format(file,
864 mp->width,
865 mp->height,
866 &zoran_formats[i])))
867 return res;
868 zr->v4l_settings = fh->v4l_settings;
869
870 /* queue the frame in the pending queue */
871 if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
872 fh->v4l_buffers.active = ZORAN_FREE;
873 return res;
874 }
875
876 /* put the 36057 into frame grabbing mode */
877 if (!res && !zr->v4l_memgrab_active)
878 zr36057_set_memgrab(zr, 1);
879
880 //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
881
882 return res;
883 }
884
885 /*
886 * Sync on a V4L buffer
887 */
888
889 static int
890 v4l_sync (struct file *file,
891 int frame)
892 {
893 struct zoran_fh *fh = file->private_data;
894 struct zoran *zr = fh->zr;
895 unsigned long flags;
896
897 if (fh->v4l_buffers.active == ZORAN_FREE) {
898 dprintk(1,
899 KERN_ERR
900 "%s: v4l_sync() - no grab active for this session\n",
901 ZR_DEVNAME(zr));
902 return -EINVAL;
903 }
904
905 /* check passed-in frame number */
906 if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
907 dprintk(1,
908 KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
909 ZR_DEVNAME(zr), frame);
910 return -EINVAL;
911 }
912
913 /* Check if is buffer was queued at all */
914 if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
915 dprintk(1,
916 KERN_ERR
917 "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
918 ZR_DEVNAME(zr));
919 return -EPROTO;
920 }
921
922 /* wait on this buffer to get ready */
923 if (!wait_event_interruptible_timeout(zr->v4l_capq,
924 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
925 10*HZ))
926 return -ETIME;
927 if (signal_pending(current))
928 return -ERESTARTSYS;
929
930 /* buffer should now be in BUZ_STATE_DONE */
931 if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
932 dprintk(2,
933 KERN_ERR "%s: v4l_sync() - internal state error\n",
934 ZR_DEVNAME(zr));
935
936 zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
937 fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
938
939 spin_lock_irqsave(&zr->spinlock, flags);
940
941 /* Check if streaming capture has finished */
942 if (zr->v4l_pend_tail == zr->v4l_pend_head) {
943 zr36057_set_memgrab(zr, 0);
944 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
945 fh->v4l_buffers.active = zr->v4l_buffers.active =
946 ZORAN_FREE;
947 zr->v4l_buffers.allocated = 0;
948 }
949 }
950
951 spin_unlock_irqrestore(&zr->spinlock, flags);
952
953 return 0;
954 }
955
956 /*
957 * Queue a MJPEG buffer for capture/playback
958 */
959
960 static int
961 zoran_jpg_queue_frame (struct file *file,
962 int num,
963 enum zoran_codec_mode mode)
964 {
965 struct zoran_fh *fh = file->private_data;
966 struct zoran *zr = fh->zr;
967 unsigned long flags;
968 int res = 0;
969
970 /* Check if buffers are allocated */
971 if (!fh->jpg_buffers.allocated) {
972 dprintk(1,
973 KERN_ERR
974 "%s: jpg_queue_frame() - buffers not yet allocated\n",
975 ZR_DEVNAME(zr));
976 return -ENOMEM;
977 }
978
979 /* No grabbing outside the buffer range! */
980 if (num >= fh->jpg_buffers.num_buffers || num < 0) {
981 dprintk(1,
982 KERN_ERR
983 "%s: jpg_queue_frame() - buffer %d out of range\n",
984 ZR_DEVNAME(zr), num);
985 return -EINVAL;
986 }
987
988 /* what is the codec mode right now? */
989 if (zr->codec_mode == BUZ_MODE_IDLE) {
990 zr->jpg_settings = fh->jpg_settings;
991 } else if (zr->codec_mode != mode) {
992 /* wrong codec mode active - invalid */
993 dprintk(1,
994 KERN_ERR
995 "%s: jpg_queue_frame() - codec in wrong mode\n",
996 ZR_DEVNAME(zr));
997 return -EINVAL;
998 }
999
1000 if (fh->jpg_buffers.active == ZORAN_FREE) {
1001 if (zr->jpg_buffers.active == ZORAN_FREE) {
1002 zr->jpg_buffers = fh->jpg_buffers;
1003 fh->jpg_buffers.active = ZORAN_ACTIVE;
1004 } else {
1005 dprintk(1,
1006 KERN_ERR
1007 "%s: jpg_queue_frame() - another session is already capturing\n",
1008 ZR_DEVNAME(zr));
1009 res = -EBUSY;
1010 }
1011 }
1012
1013 if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
1014 /* Ok load up the jpeg codec */
1015 zr36057_enable_jpg(zr, mode);
1016 }
1017
1018 spin_lock_irqsave(&zr->spinlock, flags);
1019
1020 if (!res) {
1021 switch (zr->jpg_buffers.buffer[num].state) {
1022 case BUZ_STATE_DONE:
1023 dprintk(2,
1024 KERN_WARNING
1025 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
1026 ZR_DEVNAME(zr));
1027 case BUZ_STATE_USER:
1028 /* since there is at least one unused buffer there's room for at
1029 *least one more pend[] entry */
1030 zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
1031 num;
1032 zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
1033 fh->jpg_buffers.buffer[num] =
1034 zr->jpg_buffers.buffer[num];
1035 zoran_feed_stat_com(zr);
1036 break;
1037 default:
1038 case BUZ_STATE_DMA:
1039 case BUZ_STATE_PEND:
1040 if (zr->jpg_buffers.active == ZORAN_FREE) {
1041 fh->jpg_buffers.active = ZORAN_FREE;
1042 zr->jpg_buffers.allocated = 0;
1043 }
1044 res = -EBUSY; /* what are you doing? */
1045 break;
1046 }
1047 }
1048
1049 spin_unlock_irqrestore(&zr->spinlock, flags);
1050
1051 if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
1052 zr->jpg_buffers.active = fh->jpg_buffers.active;
1053 }
1054
1055 return res;
1056 }
1057
1058 static int
1059 jpg_qbuf (struct file *file,
1060 int frame,
1061 enum zoran_codec_mode mode)
1062 {
1063 struct zoran_fh *fh = file->private_data;
1064 struct zoran *zr = fh->zr;
1065 int res = 0;
1066
1067 /* Does the user want to stop streaming? */
1068 if (frame < 0) {
1069 if (zr->codec_mode == mode) {
1070 if (fh->jpg_buffers.active == ZORAN_FREE) {
1071 dprintk(1,
1072 KERN_ERR
1073 "%s: jpg_qbuf(-1) - session not active\n",
1074 ZR_DEVNAME(zr));
1075 return -EINVAL;
1076 }
1077 fh->jpg_buffers.active = zr->jpg_buffers.active =
1078 ZORAN_FREE;
1079 zr->jpg_buffers.allocated = 0;
1080 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1081 return 0;
1082 } else {
1083 dprintk(1,
1084 KERN_ERR
1085 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1086 ZR_DEVNAME(zr));
1087 return -EINVAL;
1088 }
1089 }
1090
1091 if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1092 return res;
1093
1094 /* Start the jpeg codec when the first frame is queued */
1095 if (!res && zr->jpg_que_head == 1)
1096 jpeg_start(zr);
1097
1098 return res;
1099 }
1100
1101 /*
1102 * Sync on a MJPEG buffer
1103 */
1104
1105 static int
1106 jpg_sync (struct file *file,
1107 struct zoran_sync *bs)
1108 {
1109 struct zoran_fh *fh = file->private_data;
1110 struct zoran *zr = fh->zr;
1111 unsigned long flags;
1112 int frame;
1113
1114 if (fh->jpg_buffers.active == ZORAN_FREE) {
1115 dprintk(1,
1116 KERN_ERR
1117 "%s: jpg_sync() - capture is not currently active\n",
1118 ZR_DEVNAME(zr));
1119 return -EINVAL;
1120 }
1121 if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1122 zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1123 dprintk(1,
1124 KERN_ERR
1125 "%s: jpg_sync() - codec not in streaming mode\n",
1126 ZR_DEVNAME(zr));
1127 return -EINVAL;
1128 }
1129 if (!wait_event_interruptible_timeout(zr->jpg_capq,
1130 (zr->jpg_que_tail != zr->jpg_dma_tail ||
1131 zr->jpg_dma_tail == zr->jpg_dma_head),
1132 10*HZ)) {
1133 int isr;
1134
1135 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1136 udelay(1);
1137 zr->codec->control(zr->codec, CODEC_G_STATUS,
1138 sizeof(isr), &isr);
1139 dprintk(1,
1140 KERN_ERR
1141 "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1142 ZR_DEVNAME(zr), isr);
1143
1144 return -ETIME;
1145
1146 }
1147 if (signal_pending(current))
1148 return -ERESTARTSYS;
1149
1150 spin_lock_irqsave(&zr->spinlock, flags);
1151
1152 if (zr->jpg_dma_tail != zr->jpg_dma_head)
1153 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1154 else
1155 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1156
1157 /* buffer should now be in BUZ_STATE_DONE */
1158 if (*zr_debug > 0)
1159 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1160 dprintk(2,
1161 KERN_ERR
1162 "%s: jpg_sync() - internal state error\n",
1163 ZR_DEVNAME(zr));
1164
1165 *bs = zr->jpg_buffers.buffer[frame].bs;
1166 bs->frame = frame;
1167 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1168 fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1169
1170 spin_unlock_irqrestore(&zr->spinlock, flags);
1171
1172 return 0;
1173 }
1174
1175 static void
1176 zoran_open_init_session (struct file *file)
1177 {
1178 int i;
1179 struct zoran_fh *fh = file->private_data;
1180 struct zoran *zr = fh->zr;
1181
1182 /* Per default, map the V4L Buffers */
1183 fh->map_mode = ZORAN_MAP_MODE_RAW;
1184
1185 /* take over the card's current settings */
1186 fh->overlay_settings = zr->overlay_settings;
1187 fh->overlay_settings.is_set = 0;
1188 fh->overlay_settings.format = zr->overlay_settings.format;
1189 fh->overlay_active = ZORAN_FREE;
1190
1191 /* v4l settings */
1192 fh->v4l_settings = zr->v4l_settings;
1193
1194 /* v4l_buffers */
1195 memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1196 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1197 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1198 fh->v4l_buffers.buffer[i].bs.frame = i;
1199 }
1200 fh->v4l_buffers.allocated = 0;
1201 fh->v4l_buffers.ready_to_be_freed = 0;
1202 fh->v4l_buffers.active = ZORAN_FREE;
1203 fh->v4l_buffers.buffer_size = v4l_bufsize;
1204 fh->v4l_buffers.num_buffers = v4l_nbufs;
1205
1206 /* jpg settings */
1207 fh->jpg_settings = zr->jpg_settings;
1208
1209 /* jpg_buffers */
1210 memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1211 for (i = 0; i < BUZ_MAX_FRAME; i++) {
1212 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1213 fh->jpg_buffers.buffer[i].bs.frame = i;
1214 }
1215 fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1216 fh->jpg_buffers.allocated = 0;
1217 fh->jpg_buffers.ready_to_be_freed = 0;
1218 fh->jpg_buffers.active = ZORAN_FREE;
1219 fh->jpg_buffers.buffer_size = jpg_bufsize;
1220 fh->jpg_buffers.num_buffers = jpg_nbufs;
1221 }
1222
1223 static void
1224 zoran_close_end_session (struct file *file)
1225 {
1226 struct zoran_fh *fh = file->private_data;
1227 struct zoran *zr = fh->zr;
1228
1229 /* overlay */
1230 if (fh->overlay_active != ZORAN_FREE) {
1231 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1232 zr->v4l_overlay_active = 0;
1233 if (!zr->v4l_memgrab_active)
1234 zr36057_overlay(zr, 0);
1235 zr->overlay_mask = NULL;
1236 }
1237
1238 /* v4l capture */
1239 if (fh->v4l_buffers.active != ZORAN_FREE) {
1240 zr36057_set_memgrab(zr, 0);
1241 zr->v4l_buffers.allocated = 0;
1242 zr->v4l_buffers.active = fh->v4l_buffers.active =
1243 ZORAN_FREE;
1244 }
1245
1246 /* v4l buffers */
1247 if (fh->v4l_buffers.allocated ||
1248 fh->v4l_buffers.ready_to_be_freed) {
1249 v4l_fbuffer_free(file);
1250 }
1251
1252 /* jpg capture */
1253 if (fh->jpg_buffers.active != ZORAN_FREE) {
1254 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1255 zr->jpg_buffers.allocated = 0;
1256 zr->jpg_buffers.active = fh->jpg_buffers.active =
1257 ZORAN_FREE;
1258 }
1259
1260 /* jpg buffers */
1261 if (fh->jpg_buffers.allocated ||
1262 fh->jpg_buffers.ready_to_be_freed) {
1263 jpg_fbuffer_free(file);
1264 }
1265 }
1266
1267 /*
1268 * Open a zoran card. Right now the flags stuff is just playing
1269 */
1270
1271 static int
1272 zoran_open (struct inode *inode,
1273 struct file *file)
1274 {
1275 unsigned int minor = iminor(inode);
1276 struct zoran *zr = NULL;
1277 struct zoran_fh *fh;
1278 int i, res, first_open = 0, have_module_locks = 0;
1279
1280 /* find the device */
1281 for (i = 0; i < zoran_num; i++) {
1282 if (zoran[i].video_dev->minor == minor) {
1283 zr = &zoran[i];
1284 break;
1285 }
1286 }
1287
1288 if (!zr) {
1289 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1290 res = -ENODEV;
1291 goto open_unlock_and_return;
1292 }
1293
1294 /* see fs/device.c - the kernel already locks during open(),
1295 * so locking ourselves only causes deadlocks */
1296 /*mutex_lock(&zr->resource_lock);*/
1297
1298 if (!zr->decoder) {
1299 dprintk(1,
1300 KERN_ERR "%s: no TV decoder loaded for device!\n",
1301 ZR_DEVNAME(zr));
1302 res = -EIO;
1303 goto open_unlock_and_return;
1304 }
1305
1306 /* try to grab a module lock */
1307 if (!try_module_get(THIS_MODULE)) {
1308 dprintk(1,
1309 KERN_ERR
1310 "%s: failed to acquire my own lock! PANIC!\n",
1311 ZR_DEVNAME(zr));
1312 res = -ENODEV;
1313 goto open_unlock_and_return;
1314 }
1315 if (!try_module_get(zr->decoder->driver->driver.owner)) {
1316 dprintk(1,
1317 KERN_ERR
1318 "%s: failed to grab ownership of i2c decoder\n",
1319 ZR_DEVNAME(zr));
1320 res = -EIO;
1321 module_put(THIS_MODULE);
1322 goto open_unlock_and_return;
1323 }
1324 if (zr->encoder &&
1325 !try_module_get(zr->encoder->driver->driver.owner)) {
1326 dprintk(1,
1327 KERN_ERR
1328 "%s: failed to grab ownership of i2c encoder\n",
1329 ZR_DEVNAME(zr));
1330 res = -EIO;
1331 module_put(zr->decoder->driver->driver.owner);
1332 module_put(THIS_MODULE);
1333 goto open_unlock_and_return;
1334 }
1335
1336 have_module_locks = 1;
1337
1338 if (zr->user >= 2048) {
1339 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1340 ZR_DEVNAME(zr), zr->user);
1341 res = -EBUSY;
1342 goto open_unlock_and_return;
1343 }
1344
1345 dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1346 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1347
1348 /* now, create the open()-specific file_ops struct */
1349 fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1350 if (!fh) {
1351 dprintk(1,
1352 KERN_ERR
1353 "%s: zoran_open() - allocation of zoran_fh failed\n",
1354 ZR_DEVNAME(zr));
1355 res = -ENOMEM;
1356 goto open_unlock_and_return;
1357 }
1358 /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1359 * on norm-change! */
1360 fh->overlay_mask =
1361 kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1362 if (!fh->overlay_mask) {
1363 dprintk(1,
1364 KERN_ERR
1365 "%s: zoran_open() - allocation of overlay_mask failed\n",
1366 ZR_DEVNAME(zr));
1367 kfree(fh);
1368 res = -ENOMEM;
1369 goto open_unlock_and_return;
1370 }
1371
1372 if (zr->user++ == 0)
1373 first_open = 1;
1374
1375 /*mutex_unlock(&zr->resource_lock);*/
1376
1377 /* default setup - TODO: look at flags */
1378 if (first_open) { /* First device open */
1379 zr36057_restart(zr);
1380 zoran_open_init_params(zr);
1381 zoran_init_hardware(zr);
1382
1383 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1384 }
1385
1386 /* set file_ops stuff */
1387 file->private_data = fh;
1388 fh->zr = zr;
1389 zoran_open_init_session(file);
1390
1391 return 0;
1392
1393 open_unlock_and_return:
1394 /* if we grabbed locks, release them accordingly */
1395 if (have_module_locks) {
1396 module_put(zr->decoder->driver->driver.owner);
1397 if (zr->encoder) {
1398 module_put(zr->encoder->driver->driver.owner);
1399 }
1400 module_put(THIS_MODULE);
1401 }
1402
1403 /* if there's no device found, we didn't obtain the lock either */
1404 if (zr) {
1405 /*mutex_unlock(&zr->resource_lock);*/
1406 }
1407
1408 return res;
1409 }
1410
1411 static int
1412 zoran_close (struct inode *inode,
1413 struct file *file)
1414 {
1415 struct zoran_fh *fh = file->private_data;
1416 struct zoran *zr = fh->zr;
1417
1418 dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1419 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1420
1421 /* kernel locks (fs/device.c), so don't do that ourselves
1422 * (prevents deadlocks) */
1423 /*mutex_lock(&zr->resource_lock);*/
1424
1425 zoran_close_end_session(file);
1426
1427 if (zr->user-- == 1) { /* Last process */
1428 /* Clean up JPEG process */
1429 wake_up_interruptible(&zr->jpg_capq);
1430 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1431 zr->jpg_buffers.allocated = 0;
1432 zr->jpg_buffers.active = ZORAN_FREE;
1433
1434 /* disable interrupts */
1435 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1436
1437 if (*zr_debug > 1)
1438 print_interrupts(zr);
1439
1440 /* Overlay off */
1441 zr->v4l_overlay_active = 0;
1442 zr36057_overlay(zr, 0);
1443 zr->overlay_mask = NULL;
1444
1445 /* capture off */
1446 wake_up_interruptible(&zr->v4l_capq);
1447 zr36057_set_memgrab(zr, 0);
1448 zr->v4l_buffers.allocated = 0;
1449 zr->v4l_buffers.active = ZORAN_FREE;
1450 zoran_set_pci_master(zr, 0);
1451
1452 if (!pass_through) { /* Switch to color bar */
1453 int zero = 0, two = 2;
1454 decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1455 encoder_command(zr, ENCODER_SET_INPUT, &two);
1456 }
1457 }
1458
1459 file->private_data = NULL;
1460 kfree(fh->overlay_mask);
1461 kfree(fh);
1462
1463 /* release locks on the i2c modules */
1464 module_put(zr->decoder->driver->driver.owner);
1465 if (zr->encoder) {
1466 module_put(zr->encoder->driver->driver.owner);
1467 }
1468 module_put(THIS_MODULE);
1469
1470 /*mutex_unlock(&zr->resource_lock);*/
1471
1472 dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1473
1474 return 0;
1475 }
1476
1477
1478 static ssize_t
1479 zoran_read (struct file *file,
1480 char __user *data,
1481 size_t count,
1482 loff_t *ppos)
1483 {
1484 /* we simply don't support read() (yet)... */
1485
1486 return -EINVAL;
1487 }
1488
1489 static ssize_t
1490 zoran_write (struct file *file,
1491 const char __user *data,
1492 size_t count,
1493 loff_t *ppos)
1494 {
1495 /* ...and the same goes for write() */
1496
1497 return -EINVAL;
1498 }
1499
1500 static int
1501 setup_fbuffer (struct file *file,
1502 void *base,
1503 const struct zoran_format *fmt,
1504 int width,
1505 int height,
1506 int bytesperline)
1507 {
1508 struct zoran_fh *fh = file->private_data;
1509 struct zoran *zr = fh->zr;
1510
1511 /* (Ronald) v4l/v4l2 guidelines */
1512 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1513 return -EPERM;
1514
1515 /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1516 ALi Magik (that needs very low latency while the card needs a
1517 higher value always) */
1518
1519 if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1520 return -ENXIO;
1521
1522 /* we need a bytesperline value, even if not given */
1523 if (!bytesperline)
1524 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1525
1526 #if 0
1527 if (zr->overlay_active) {
1528 /* dzjee... stupid users... don't even bother to turn off
1529 * overlay before changing the memory location...
1530 * normally, we would return errors here. However, one of
1531 * the tools that does this is... xawtv! and since xawtv
1532 * is used by +/- 99% of the users, we'd rather be user-
1533 * friendly and silently do as if nothing went wrong */
1534 dprintk(3,
1535 KERN_ERR
1536 "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1537 ZR_DEVNAME(zr));
1538 zr36057_overlay(zr, 0);
1539 }
1540 #endif
1541
1542 if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1543 dprintk(1,
1544 KERN_ERR
1545 "%s: setup_fbuffer() - no valid overlay format given\n",
1546 ZR_DEVNAME(zr));
1547 return -EINVAL;
1548 }
1549 if (height <= 0 || width <= 0 || bytesperline <= 0) {
1550 dprintk(1,
1551 KERN_ERR
1552 "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1553 ZR_DEVNAME(zr), width, height, bytesperline);
1554 return -EINVAL;
1555 }
1556 if (bytesperline & 3) {
1557 dprintk(1,
1558 KERN_ERR
1559 "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1560 ZR_DEVNAME(zr), bytesperline);
1561 return -EINVAL;
1562 }
1563
1564 zr->buffer.base = (void *) ((unsigned long) base & ~3);
1565 zr->buffer.height = height;
1566 zr->buffer.width = width;
1567 zr->buffer.depth = fmt->depth;
1568 zr->overlay_settings.format = fmt;
1569 zr->buffer.bytesperline = bytesperline;
1570
1571 /* The user should set new window parameters */
1572 zr->overlay_settings.is_set = 0;
1573
1574 return 0;
1575 }
1576
1577
1578 static int
1579 setup_window (struct file *file,
1580 int x,
1581 int y,
1582 int width,
1583 int height,
1584 struct video_clip __user *clips,
1585 int clipcount,
1586 void __user *bitmap)
1587 {
1588 struct zoran_fh *fh = file->private_data;
1589 struct zoran *zr = fh->zr;
1590 struct video_clip *vcp = NULL;
1591 int on, end;
1592
1593
1594 if (!zr->buffer.base) {
1595 dprintk(1,
1596 KERN_ERR
1597 "%s: setup_window() - frame buffer has to be set first\n",
1598 ZR_DEVNAME(zr));
1599 return -EINVAL;
1600 }
1601
1602 if (!fh->overlay_settings.format) {
1603 dprintk(1,
1604 KERN_ERR
1605 "%s: setup_window() - no overlay format set\n",
1606 ZR_DEVNAME(zr));
1607 return -EINVAL;
1608 }
1609
1610 /*
1611 * The video front end needs 4-byte alinged line sizes, we correct that
1612 * silently here if necessary
1613 */
1614 if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1615 end = (x + width) & ~1; /* round down */
1616 x = (x + 1) & ~1; /* round up */
1617 width = end - x;
1618 }
1619
1620 if (zr->buffer.depth == 24) {
1621 end = (x + width) & ~3; /* round down */
1622 x = (x + 3) & ~3; /* round up */
1623 width = end - x;
1624 }
1625
1626 if (width > BUZ_MAX_WIDTH)
1627 width = BUZ_MAX_WIDTH;
1628 if (height > BUZ_MAX_HEIGHT)
1629 height = BUZ_MAX_HEIGHT;
1630
1631 /* Check for vaild parameters */
1632 if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1633 width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1634 dprintk(1,
1635 KERN_ERR
1636 "%s: setup_window() - width = %d or height = %d invalid\n",
1637 ZR_DEVNAME(zr), width, height);
1638 return -EINVAL;
1639 }
1640
1641 fh->overlay_settings.x = x;
1642 fh->overlay_settings.y = y;
1643 fh->overlay_settings.width = width;
1644 fh->overlay_settings.height = height;
1645 fh->overlay_settings.clipcount = clipcount;
1646
1647 /*
1648 * If an overlay is running, we have to switch it off
1649 * and switch it on again in order to get the new settings in effect.
1650 *
1651 * We also want to avoid that the overlay mask is written
1652 * when an overlay is running.
1653 */
1654
1655 on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1656 zr->overlay_active != ZORAN_FREE &&
1657 fh->overlay_active != ZORAN_FREE;
1658 if (on)
1659 zr36057_overlay(zr, 0);
1660
1661 /*
1662 * Write the overlay mask if clips are wanted.
1663 * We prefer a bitmap.
1664 */
1665 if (bitmap) {
1666 /* fake value - it just means we want clips */
1667 fh->overlay_settings.clipcount = 1;
1668
1669 if (copy_from_user(fh->overlay_mask, bitmap,
1670 (width * height + 7) / 8)) {
1671 return -EFAULT;
1672 }
1673 } else if (clipcount > 0) {
1674 /* write our own bitmap from the clips */
1675 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1676 if (vcp == NULL) {
1677 dprintk(1,
1678 KERN_ERR
1679 "%s: setup_window() - Alloc of clip mask failed\n",
1680 ZR_DEVNAME(zr));
1681 return -ENOMEM;
1682 }
1683 if (copy_from_user
1684 (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1685 vfree(vcp);
1686 return -EFAULT;
1687 }
1688 write_overlay_mask(file, vcp, clipcount);
1689 vfree(vcp);
1690 }
1691
1692 fh->overlay_settings.is_set = 1;
1693 if (fh->overlay_active != ZORAN_FREE &&
1694 zr->overlay_active != ZORAN_FREE)
1695 zr->overlay_settings = fh->overlay_settings;
1696
1697 if (on)
1698 zr36057_overlay(zr, 1);
1699
1700 /* Make sure the changes come into effect */
1701 return wait_grab_pending(zr);
1702 }
1703
1704 static int
1705 setup_overlay (struct file *file,
1706 int on)
1707 {
1708 struct zoran_fh *fh = file->private_data;
1709 struct zoran *zr = fh->zr;
1710
1711 /* If there is nothing to do, return immediatly */
1712 if ((on && fh->overlay_active != ZORAN_FREE) ||
1713 (!on && fh->overlay_active == ZORAN_FREE))
1714 return 0;
1715
1716 /* check whether we're touching someone else's overlay */
1717 if (on && zr->overlay_active != ZORAN_FREE &&
1718 fh->overlay_active == ZORAN_FREE) {
1719 dprintk(1,
1720 KERN_ERR
1721 "%s: setup_overlay() - overlay is already active for another session\n",
1722 ZR_DEVNAME(zr));
1723 return -EBUSY;
1724 }
1725 if (!on && zr->overlay_active != ZORAN_FREE &&
1726 fh->overlay_active == ZORAN_FREE) {
1727 dprintk(1,
1728 KERN_ERR
1729 "%s: setup_overlay() - you cannot cancel someone else's session\n",
1730 ZR_DEVNAME(zr));
1731 return -EPERM;
1732 }
1733
1734 if (on == 0) {
1735 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1736 zr->v4l_overlay_active = 0;
1737 /* When a grab is running, the video simply
1738 * won't be switched on any more */
1739 if (!zr->v4l_memgrab_active)
1740 zr36057_overlay(zr, 0);
1741 zr->overlay_mask = NULL;
1742 } else {
1743 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1744 dprintk(1,
1745 KERN_ERR
1746 "%s: setup_overlay() - buffer or window not set\n",
1747 ZR_DEVNAME(zr));
1748 return -EINVAL;
1749 }
1750 if (!fh->overlay_settings.format) {
1751 dprintk(1,
1752 KERN_ERR
1753 "%s: setup_overlay() - no overlay format set\n",
1754 ZR_DEVNAME(zr));
1755 return -EINVAL;
1756 }
1757 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1758 zr->v4l_overlay_active = 1;
1759 zr->overlay_mask = fh->overlay_mask;
1760 zr->overlay_settings = fh->overlay_settings;
1761 if (!zr->v4l_memgrab_active)
1762 zr36057_overlay(zr, 1);
1763 /* When a grab is running, the video will be
1764 * switched on when grab is finished */
1765 }
1766
1767 /* Make sure the changes come into effect */
1768 return wait_grab_pending(zr);
1769 }
1770
1771 #ifdef CONFIG_VIDEO_V4L2
1772 /* get the status of a buffer in the clients buffer queue */
1773 static int
1774 zoran_v4l2_buffer_status (struct file *file,
1775 struct v4l2_buffer *buf,
1776 int num)
1777 {
1778 struct zoran_fh *fh = file->private_data;
1779 struct zoran *zr = fh->zr;
1780
1781 buf->flags = V4L2_BUF_FLAG_MAPPED;
1782
1783 switch (fh->map_mode) {
1784 case ZORAN_MAP_MODE_RAW:
1785
1786 /* check range */
1787 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1788 !fh->v4l_buffers.allocated) {
1789 dprintk(1,
1790 KERN_ERR
1791 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1792 ZR_DEVNAME(zr));
1793 return -EINVAL;
1794 }
1795
1796 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1797 buf->length = fh->v4l_buffers.buffer_size;
1798
1799 /* get buffer */
1800 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1801 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1802 fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1803 buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1804 buf->flags |= V4L2_BUF_FLAG_DONE;
1805 buf->timestamp =
1806 fh->v4l_buffers.buffer[num].bs.timestamp;
1807 } else {
1808 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1809 }
1810
1811 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1812 buf->field = V4L2_FIELD_TOP;
1813 else
1814 buf->field = V4L2_FIELD_INTERLACED;
1815
1816 break;
1817
1818 case ZORAN_MAP_MODE_JPG_REC:
1819 case ZORAN_MAP_MODE_JPG_PLAY:
1820
1821 /* check range */
1822 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1823 !fh->jpg_buffers.allocated) {
1824 dprintk(1,
1825 KERN_ERR
1826 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1827 ZR_DEVNAME(zr));
1828 return -EINVAL;
1829 }
1830
1831 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1832 V4L2_BUF_TYPE_VIDEO_CAPTURE :
1833 V4L2_BUF_TYPE_VIDEO_OUTPUT;
1834 buf->length = fh->jpg_buffers.buffer_size;
1835
1836 /* these variables are only written after frame has been captured */
1837 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1838 fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1839 buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1840 buf->timestamp =
1841 fh->jpg_buffers.buffer[num].bs.timestamp;
1842 buf->bytesused =
1843 fh->jpg_buffers.buffer[num].bs.length;
1844 buf->flags |= V4L2_BUF_FLAG_DONE;
1845 } else {
1846 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1847 }
1848
1849 /* which fields are these? */
1850 if (fh->jpg_settings.TmpDcm != 1)
1851 buf->field =
1852 fh->jpg_settings.
1853 odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1854 else
1855 buf->field =
1856 fh->jpg_settings.
1857 odd_even ? V4L2_FIELD_SEQ_TB :
1858 V4L2_FIELD_SEQ_BT;
1859
1860 break;
1861
1862 default:
1863
1864 dprintk(5,
1865 KERN_ERR
1866 "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1867 ZR_DEVNAME(zr), buf->type, fh->map_mode);
1868 return -EINVAL;
1869 }
1870
1871 buf->memory = V4L2_MEMORY_MMAP;
1872 buf->index = num;
1873 buf->m.offset = buf->length * num;
1874
1875 return 0;
1876 }
1877 #endif
1878
1879 static int
1880 zoran_set_norm (struct zoran *zr,
1881 int norm) /* VIDEO_MODE_* */
1882 {
1883 int norm_encoder, on;
1884
1885 if (zr->v4l_buffers.active != ZORAN_FREE ||
1886 zr->jpg_buffers.active != ZORAN_FREE) {
1887 dprintk(1,
1888 KERN_WARNING
1889 "%s: set_norm() called while in playback/capture mode\n",
1890 ZR_DEVNAME(zr));
1891 return -EBUSY;
1892 }
1893
1894 if (lock_norm && norm != zr->norm) {
1895 if (lock_norm > 1) {
1896 dprintk(1,
1897 KERN_WARNING
1898 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1899 ZR_DEVNAME(zr));
1900 return -EPERM;
1901 } else {
1902 dprintk(1,
1903 KERN_WARNING
1904 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1905 ZR_DEVNAME(zr));
1906 norm = zr->norm;
1907 }
1908 }
1909
1910 if (norm != VIDEO_MODE_AUTO &&
1911 (norm < 0 || norm >= zr->card.norms ||
1912 !zr->card.tvn[norm])) {
1913 dprintk(1,
1914 KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1915 ZR_DEVNAME(zr), norm);
1916 return -EINVAL;
1917 }
1918
1919 if (norm == VIDEO_MODE_AUTO) {
1920 int status;
1921
1922 /* if we have autodetect, ... */
1923 struct video_decoder_capability caps;
1924 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1925 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1926 dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1927 ZR_DEVNAME(zr));
1928 return -EINVAL;
1929 }
1930
1931 decoder_command(zr, DECODER_SET_NORM, &norm);
1932
1933 /* let changes come into effect */
1934 ssleep(2);
1935
1936 decoder_command(zr, DECODER_GET_STATUS, &status);
1937 if (!(status & DECODER_STATUS_GOOD)) {
1938 dprintk(1,
1939 KERN_ERR
1940 "%s: set_norm() - no norm detected\n",
1941 ZR_DEVNAME(zr));
1942 /* reset norm */
1943 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1944 return -EIO;
1945 }
1946
1947 if (status & DECODER_STATUS_NTSC)
1948 norm = VIDEO_MODE_NTSC;
1949 else if (status & DECODER_STATUS_SECAM)
1950 norm = VIDEO_MODE_SECAM;
1951 else
1952 norm = VIDEO_MODE_PAL;
1953 }
1954 zr->timing = zr->card.tvn[norm];
1955 norm_encoder = norm;
1956
1957 /* We switch overlay off and on since a change in the
1958 * norm needs different VFE settings */
1959 on = zr->overlay_active && !zr->v4l_memgrab_active;
1960 if (on)
1961 zr36057_overlay(zr, 0);
1962
1963 decoder_command(zr, DECODER_SET_NORM, &norm);
1964 encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1965
1966 if (on)
1967 zr36057_overlay(zr, 1);
1968
1969 /* Make sure the changes come into effect */
1970 zr->norm = norm;
1971
1972 return 0;
1973 }
1974
1975 static int
1976 zoran_set_input (struct zoran *zr,
1977 int input)
1978 {
1979 int realinput;
1980
1981 if (input == zr->input) {
1982 return 0;
1983 }
1984
1985 if (zr->v4l_buffers.active != ZORAN_FREE ||
1986 zr->jpg_buffers.active != ZORAN_FREE) {
1987 dprintk(1,
1988 KERN_WARNING
1989 "%s: set_input() called while in playback/capture mode\n",
1990 ZR_DEVNAME(zr));
1991 return -EBUSY;
1992 }
1993
1994 if (input < 0 || input >= zr->card.inputs) {
1995 dprintk(1,
1996 KERN_ERR
1997 "%s: set_input() - unnsupported input %d\n",
1998 ZR_DEVNAME(zr), input);
1999 return -EINVAL;
2000 }
2001
2002 realinput = zr->card.input[input].muxsel;
2003 zr->input = input;
2004
2005 decoder_command(zr, DECODER_SET_INPUT, &realinput);
2006
2007 return 0;
2008 }
2009
2010 /*
2011 * ioctl routine
2012 */
2013
2014 static int
2015 zoran_do_ioctl (struct inode *inode,
2016 struct file *file,
2017 unsigned int cmd,
2018 void *arg)
2019 {
2020 struct zoran_fh *fh = file->private_data;
2021 struct zoran *zr = fh->zr;
2022 /* CAREFUL: used in multiple places here */
2023 struct zoran_jpg_settings settings;
2024
2025 /* we might have older buffers lying around... We don't want
2026 * to wait, but we do want to try cleaning them up ASAP. So
2027 * we try to obtain the lock and free them. If that fails, we
2028 * don't do anything and wait for the next turn. In the end,
2029 * zoran_close() or a new allocation will still free them...
2030 * This is just a 'the sooner the better' extra 'feature'
2031 *
2032 * We don't free the buffers right on munmap() because that
2033 * causes oopses (kfree() inside munmap() oopses for no
2034 * apparent reason - it's also not reproduceable in any way,
2035 * but moving the free code outside the munmap() handler fixes
2036 * all this... If someone knows why, please explain me (Ronald)
2037 */
2038 if (!!mutex_trylock(&zr->resource_lock)) {
2039 /* we obtained it! Let's try to free some things */
2040 if (fh->jpg_buffers.ready_to_be_freed)
2041 jpg_fbuffer_free(file);
2042 if (fh->v4l_buffers.ready_to_be_freed)
2043 v4l_fbuffer_free(file);
2044
2045 mutex_unlock(&zr->resource_lock);
2046 }
2047
2048 switch (cmd) {
2049
2050 case VIDIOCGCAP:
2051 {
2052 struct video_capability *vcap = arg;
2053
2054 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
2055
2056 memset(vcap, 0, sizeof(struct video_capability));
2057 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
2058 vcap->type = ZORAN_VID_TYPE;
2059
2060 vcap->channels = zr->card.inputs;
2061 vcap->audios = 0;
2062 mutex_lock(&zr->resource_lock);
2063 vcap->maxwidth = BUZ_MAX_WIDTH;
2064 vcap->maxheight = BUZ_MAX_HEIGHT;
2065 vcap->minwidth = BUZ_MIN_WIDTH;
2066 vcap->minheight = BUZ_MIN_HEIGHT;
2067 mutex_unlock(&zr->resource_lock);
2068
2069 return 0;
2070 }
2071 break;
2072
2073 case VIDIOCGCHAN:
2074 {
2075 struct video_channel *vchan = arg;
2076 int channel = vchan->channel;
2077
2078 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2079 ZR_DEVNAME(zr), vchan->channel);
2080
2081 memset(vchan, 0, sizeof(struct video_channel));
2082 if (channel > zr->card.inputs || channel < 0) {
2083 dprintk(1,
2084 KERN_ERR
2085 "%s: VIDIOCGCHAN on not existing channel %d\n",
2086 ZR_DEVNAME(zr), channel);
2087 return -EINVAL;
2088 }
2089
2090 strcpy(vchan->name, zr->card.input[channel].name);
2091
2092 vchan->tuners = 0;
2093 vchan->flags = 0;
2094 vchan->type = VIDEO_TYPE_CAMERA;
2095 mutex_lock(&zr->resource_lock);
2096 vchan->norm = zr->norm;
2097 mutex_unlock(&zr->resource_lock);
2098 vchan->channel = channel;
2099
2100 return 0;
2101 }
2102 break;
2103
2104 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2105 *
2106 * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2107 * * ^^^^^^^
2108 * * The famos BTTV driver has it implemented with a struct video_channel argument
2109 * * and we follow it for compatibility reasons
2110 * *
2111 * * BTW: this is the only way the user can set the norm!
2112 */
2113
2114 case VIDIOCSCHAN:
2115 {
2116 struct video_channel *vchan = arg;
2117 int res;
2118
2119 dprintk(3,
2120 KERN_DEBUG
2121 "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2122 ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2123
2124 mutex_lock(&zr->resource_lock);
2125 if ((res = zoran_set_input(zr, vchan->channel)))
2126 goto schan_unlock_and_return;
2127 if ((res = zoran_set_norm(zr, vchan->norm)))
2128 goto schan_unlock_and_return;
2129
2130 /* Make sure the changes come into effect */
2131 res = wait_grab_pending(zr);
2132 schan_unlock_and_return:
2133 mutex_unlock(&zr->resource_lock);
2134 return res;
2135 }
2136 break;
2137
2138 case VIDIOCGPICT:
2139 {
2140 struct video_picture *vpict = arg;
2141
2142 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2143
2144 memset(vpict, 0, sizeof(struct video_picture));
2145 mutex_lock(&zr->resource_lock);
2146 vpict->hue = zr->hue;
2147 vpict->brightness = zr->brightness;
2148 vpict->contrast = zr->contrast;
2149 vpict->colour = zr->saturation;
2150 if (fh->overlay_settings.format) {
2151 vpict->depth = fh->overlay_settings.format->depth;
2152 vpict->palette = fh->overlay_settings.format->palette;
2153 } else {
2154 vpict->depth = 0;
2155 }
2156 mutex_unlock(&zr->resource_lock);
2157
2158 return 0;
2159 }
2160 break;
2161
2162 case VIDIOCSPICT:
2163 {
2164 struct video_picture *vpict = arg;
2165 int i;
2166
2167 dprintk(3,
2168 KERN_DEBUG
2169 "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2170 ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2171 vpict->colour, vpict->contrast, vpict->depth,
2172 vpict->palette);
2173
2174 for (i = 0; i < zoran_num_formats; i++) {
2175 const struct zoran_format *fmt = &zoran_formats[i];
2176
2177 if (fmt->palette != -1 &&
2178 fmt->flags & ZORAN_FORMAT_OVERLAY &&
2179 fmt->palette == vpict->palette &&
2180 fmt->depth == vpict->depth)
2181 break;
2182 }
2183 if (i == zoran_num_formats) {
2184 dprintk(1,
2185 KERN_ERR
2186 "%s: VIDIOCSPICT - Invalid palette %d\n",
2187 ZR_DEVNAME(zr), vpict->palette);
2188 return -EINVAL;
2189 }
2190
2191 mutex_lock(&zr->resource_lock);
2192
2193 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2194
2195 zr->hue = vpict->hue;
2196 zr->contrast = vpict->contrast;
2197 zr->saturation = vpict->colour;
2198 zr->brightness = vpict->brightness;
2199
2200 fh->overlay_settings.format = &zoran_formats[i];
2201
2202 mutex_unlock(&zr->resource_lock);
2203
2204 return 0;
2205 }
2206 break;
2207
2208 case VIDIOCCAPTURE:
2209 {
2210 int *on = arg, res;
2211
2212 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2213 ZR_DEVNAME(zr), *on);
2214
2215 mutex_lock(&zr->resource_lock);
2216 res = setup_overlay(file, *on);
2217 mutex_unlock(&zr->resource_lock);
2218
2219 return res;
2220 }
2221 break;
2222
2223 case VIDIOCGWIN:
2224 {
2225 struct video_window *vwin = arg;
2226
2227 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2228
2229 memset(vwin, 0, sizeof(struct video_window));
2230 mutex_lock(&zr->resource_lock);
2231 vwin->x = fh->overlay_settings.x;
2232 vwin->y = fh->overlay_settings.y;
2233 vwin->width = fh->overlay_settings.width;
2234 vwin->height = fh->overlay_settings.height;
2235 mutex_unlock(&zr->resource_lock);
2236 vwin->clipcount = 0;
2237 return 0;
2238 }
2239 break;
2240
2241 case VIDIOCSWIN:
2242 {
2243 struct video_window *vwin = arg;
2244 int res;
2245
2246 dprintk(3,
2247 KERN_DEBUG
2248 "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2249 ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2250 vwin->height, vwin->clipcount);
2251
2252 mutex_lock(&zr->resource_lock);
2253 res =
2254 setup_window(file, vwin->x, vwin->y, vwin->width,
2255 vwin->height, vwin->clips,
2256 vwin->clipcount, NULL);
2257 mutex_unlock(&zr->resource_lock);
2258
2259 return res;
2260 }
2261 break;
2262
2263 case VIDIOCGFBUF:
2264 {
2265 struct video_buffer *vbuf = arg;
2266
2267 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2268
2269 mutex_lock(&zr->resource_lock);
2270 *vbuf = zr->buffer;
2271 mutex_unlock(&zr->resource_lock);
2272 return 0;
2273 }
2274 break;
2275
2276 case VIDIOCSFBUF:
2277 {
2278 struct video_buffer *vbuf = arg;
2279 int i, res = 0;
2280
2281 dprintk(3,
2282 KERN_DEBUG
2283 "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2284 ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2285 vbuf->height, vbuf->depth, vbuf->bytesperline);
2286
2287 for (i = 0; i < zoran_num_formats; i++)
2288 if (zoran_formats[i].depth == vbuf->depth)
2289 break;
2290 if (i == zoran_num_formats) {
2291 dprintk(1,
2292 KERN_ERR
2293 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2294 ZR_DEVNAME(zr), vbuf->depth);
2295 return -EINVAL;
2296 }
2297
2298 mutex_lock(&zr->resource_lock);
2299 res =
2300 setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2301 vbuf->width, vbuf->height,
2302 vbuf->bytesperline);
2303 mutex_unlock(&zr->resource_lock);
2304
2305 return res;
2306 }
2307 break;
2308
2309 case VIDIOCSYNC:
2310 {
2311 int *frame = arg, res;
2312
2313 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2314 ZR_DEVNAME(zr), *frame);
2315
2316 mutex_lock(&zr->resource_lock);
2317 res = v4l_sync(file, *frame);
2318 mutex_unlock(&zr->resource_lock);
2319 if (!res)
2320 zr->v4l_sync_tail++;
2321 return res;
2322 }
2323 break;
2324
2325 case VIDIOCMCAPTURE:
2326 {
2327 struct video_mmap *vmap = arg;
2328 int res;
2329
2330 dprintk(3,
2331 KERN_DEBUG
2332 "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2333 ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2334 vmap->format);
2335
2336 mutex_lock(&zr->resource_lock);
2337 res = v4l_grab(file, vmap);
2338 mutex_unlock(&zr->resource_lock);
2339 return res;
2340 }
2341 break;
2342
2343 case VIDIOCGMBUF:
2344 {
2345 struct video_mbuf *vmbuf = arg;
2346 int i, res = 0;
2347
2348 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2349
2350 vmbuf->size =
2351 fh->v4l_buffers.num_buffers *
2352 fh->v4l_buffers.buffer_size;
2353 vmbuf->frames = fh->v4l_buffers.num_buffers;
2354 for (i = 0; i < vmbuf->frames; i++) {
2355 vmbuf->offsets[i] =
2356 i * fh->v4l_buffers.buffer_size;
2357 }
2358
2359 mutex_lock(&zr->resource_lock);
2360
2361 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2362 dprintk(1,
2363 KERN_ERR
2364 "%s: VIDIOCGMBUF - buffers already allocated\n",
2365 ZR_DEVNAME(zr));
2366 res = -EINVAL;
2367 goto v4l1reqbuf_unlock_and_return;
2368 }
2369
2370 if (v4l_fbuffer_alloc(file)) {
2371 res = -ENOMEM;
2372 goto v4l1reqbuf_unlock_and_return;
2373 }
2374
2375 /* The next mmap will map the V4L buffers */
2376 fh->map_mode = ZORAN_MAP_MODE_RAW;
2377 v4l1reqbuf_unlock_and_return:
2378 mutex_unlock(&zr->resource_lock);
2379
2380 return res;
2381 }
2382 break;
2383
2384 case VIDIOCGUNIT:
2385 {
2386 struct video_unit *vunit = arg;
2387
2388 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2389
2390 vunit->video = zr->video_dev->minor;
2391 vunit->vbi = VIDEO_NO_UNIT;
2392 vunit->radio = VIDEO_NO_UNIT;
2393 vunit->audio = VIDEO_NO_UNIT;
2394 vunit->teletext = VIDEO_NO_UNIT;
2395
2396 return 0;
2397 }
2398 break;
2399
2400 /*
2401 * RJ: In principal we could support subcaptures for V4L grabbing.
2402 * Not even the famous BTTV driver has them, however.
2403 * If there should be a strong demand, one could consider
2404 * to implement them.
2405 */
2406 case VIDIOCGCAPTURE:
2407 {
2408 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2409 ZR_DEVNAME(zr));
2410 return -EINVAL;
2411 }
2412 break;
2413
2414 case VIDIOCSCAPTURE:
2415 {
2416 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2417 ZR_DEVNAME(zr));
2418 return -EINVAL;
2419 }
2420 break;
2421
2422 case BUZIOC_G_PARAMS:
2423 {
2424 struct zoran_params *bparams = arg;
2425
2426 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2427
2428 memset(bparams, 0, sizeof(struct zoran_params));
2429 bparams->major_version = MAJOR_VERSION;
2430 bparams->minor_version = MINOR_VERSION;
2431
2432 mutex_lock(&zr->resource_lock);
2433
2434 bparams->norm = zr->norm;
2435 bparams->input = zr->input;
2436
2437 bparams->decimation = fh->jpg_settings.decimation;
2438 bparams->HorDcm = fh->jpg_settings.HorDcm;
2439 bparams->VerDcm = fh->jpg_settings.VerDcm;
2440 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2441 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2442 bparams->img_x = fh->jpg_settings.img_x;
2443 bparams->img_y = fh->jpg_settings.img_y;
2444 bparams->img_width = fh->jpg_settings.img_width;
2445 bparams->img_height = fh->jpg_settings.img_height;
2446 bparams->odd_even = fh->jpg_settings.odd_even;
2447
2448 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2449 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2450 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2451 memcpy(bparams->APP_data,
2452 fh->jpg_settings.jpg_comp.APP_data,
2453 sizeof(bparams->APP_data));
2454 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2455 memcpy(bparams->COM_data,
2456 fh->jpg_settings.jpg_comp.COM_data,
2457 sizeof(bparams->COM_data));
2458 bparams->jpeg_markers =
2459 fh->jpg_settings.jpg_comp.jpeg_markers;
2460
2461 mutex_unlock(&zr->resource_lock);
2462
2463 bparams->VFIFO_FB = 0;
2464
2465 return 0;
2466 }
2467 break;
2468
2469 case BUZIOC_S_PARAMS:
2470 {
2471 struct zoran_params *bparams = arg;
2472 int res = 0;
2473
2474 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2475
2476 settings.decimation = bparams->decimation;
2477 settings.HorDcm = bparams->HorDcm;
2478 settings.VerDcm = bparams->VerDcm;
2479 settings.TmpDcm = bparams->TmpDcm;
2480 settings.field_per_buff = bparams->field_per_buff;
2481 settings.img_x = bparams->img_x;
2482 settings.img_y = bparams->img_y;
2483 settings.img_width = bparams->img_width;
2484 settings.img_height = bparams->img_height;
2485 settings.odd_even = bparams->odd_even;
2486
2487 settings.jpg_comp.quality = bparams->quality;
2488 settings.jpg_comp.APPn = bparams->APPn;
2489 settings.jpg_comp.APP_len = bparams->APP_len;
2490 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2491 sizeof(bparams->APP_data));
2492 settings.jpg_comp.COM_len = bparams->COM_len;
2493 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2494 sizeof(bparams->COM_data));
2495 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2496
2497 mutex_lock(&zr->resource_lock);
2498
2499 if (zr->codec_mode != BUZ_MODE_IDLE) {
2500 dprintk(1,
2501 KERN_ERR
2502 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2503 ZR_DEVNAME(zr));
2504 res = -EINVAL;
2505 goto sparams_unlock_and_return;
2506 }
2507
2508 /* Check the params first before overwriting our
2509 * nternal values */
2510 if (zoran_check_jpg_settings(zr, &settings)) {
2511 res = -EINVAL;
2512 goto sparams_unlock_and_return;
2513 }
2514
2515 fh->jpg_settings = settings;
2516 sparams_unlock_and_return:
2517 mutex_unlock(&zr->resource_lock);
2518
2519 return res;
2520 }
2521 break;
2522
2523 case BUZIOC_REQBUFS:
2524 {
2525 struct zoran_requestbuffers *breq = arg;
2526 int res = 0;
2527
2528 dprintk(3,
2529 KERN_DEBUG
2530 "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2531 ZR_DEVNAME(zr), breq->count, breq->size);
2532
2533 /* Enforce reasonable lower and upper limits */
2534 if (breq->count < 4)
2535 breq->count = 4; /* Could be choosen smaller */
2536 if (breq->count > jpg_nbufs)
2537 breq->count = jpg_nbufs;
2538 breq->size = PAGE_ALIGN(breq->size);
2539 if (breq->size < 8192)
2540 breq->size = 8192; /* Arbitrary */
2541 /* breq->size is limited by 1 page for the stat_com
2542 * tables to a Maximum of 2 MB */
2543 if (breq->size > jpg_bufsize)
2544 breq->size = jpg_bufsize;
2545 if (fh->jpg_buffers.need_contiguous &&
2546 breq->size > MAX_KMALLOC_MEM)
2547 breq->size = MAX_KMALLOC_MEM;
2548
2549 mutex_lock(&zr->resource_lock);
2550
2551 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2552 dprintk(1,
2553 KERN_ERR
2554 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2555 ZR_DEVNAME(zr));
2556 res = -EBUSY;
2557 goto jpgreqbuf_unlock_and_return;
2558 }
2559
2560 fh->jpg_buffers.num_buffers = breq->count;
2561 fh->jpg_buffers.buffer_size = breq->size;
2562
2563 if (jpg_fbuffer_alloc(file)) {
2564 res = -ENOMEM;
2565 goto jpgreqbuf_unlock_and_return;
2566 }
2567
2568 /* The next mmap will map the MJPEG buffers - could
2569 * also be *_PLAY, but it doesn't matter here */
2570 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2571 jpgreqbuf_unlock_and_return:
2572 mutex_unlock(&zr->resource_lock);
2573
2574 return res;
2575 }
2576 break;
2577
2578 case BUZIOC_QBUF_CAPT:
2579 {
2580 int *frame = arg, res;
2581
2582 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2583 ZR_DEVNAME(zr), *frame);
2584
2585 mutex_lock(&zr->resource_lock);
2586 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2587 mutex_unlock(&zr->resource_lock);
2588
2589 return res;
2590 }
2591 break;
2592
2593 case BUZIOC_QBUF_PLAY:
2594 {
2595 int *frame = arg, res;
2596
2597 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2598 ZR_DEVNAME(zr), *frame);
2599
2600 mutex_lock(&zr->resource_lock);
2601 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2602 mutex_unlock(&zr->resource_lock);
2603
2604 return res;
2605 }
2606 break;
2607
2608 case BUZIOC_SYNC:
2609 {
2610 struct zoran_sync *bsync = arg;
2611 int res;
2612
2613 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2614
2615 mutex_lock(&zr->resource_lock);
2616 res = jpg_sync(file, bsync);
2617 mutex_unlock(&zr->resource_lock);
2618
2619 return res;
2620 }
2621 break;
2622
2623 case BUZIOC_G_STATUS:
2624 {
2625 struct zoran_status *bstat = arg;
2626 int norm, input, status, res = 0;
2627
2628 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2629
2630 if (zr->codec_mode != BUZ_MODE_IDLE) {
2631 dprintk(1,
2632 KERN_ERR
2633 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2634 ZR_DEVNAME(zr));
2635 return -EINVAL;
2636 }
2637
2638 input = zr->card.input[bstat->input].muxsel;
2639 norm = VIDEO_MODE_AUTO;
2640
2641 mutex_lock(&zr->resource_lock);
2642
2643 if (zr->codec_mode != BUZ_MODE_IDLE) {
2644 dprintk(1,
2645 KERN_ERR
2646 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2647 ZR_DEVNAME(zr));
2648 res = -EINVAL;
2649 goto gstat_unlock_and_return;
2650 }
2651
2652 decoder_command(zr, DECODER_SET_INPUT, &input);
2653 decoder_command(zr, DECODER_SET_NORM, &norm);
2654
2655 /* sleep 1 second */
2656 ssleep(1);
2657
2658 /* Get status of video decoder */
2659 decoder_command(zr, DECODER_GET_STATUS, &status);
2660
2661 /* restore previous input and norm */
2662 input = zr->card.input[zr->input].muxsel;
2663 decoder_command(zr, DECODER_SET_INPUT, &input);
2664 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2665 gstat_unlock_and_return:
2666 mutex_unlock(&zr->resource_lock);
2667
2668 if (!res) {
2669 bstat->signal =
2670 (status & DECODER_STATUS_GOOD) ? 1 : 0;
2671 if (status & DECODER_STATUS_NTSC)
2672 bstat->norm = VIDEO_MODE_NTSC;
2673 else if (status & DECODER_STATUS_SECAM)
2674 bstat->norm = VIDEO_MODE_SECAM;
2675 else
2676 bstat->norm = VIDEO_MODE_PAL;
2677
2678 bstat->color =
2679 (status & DECODER_STATUS_COLOR) ? 1 : 0;
2680 }
2681
2682 return res;
2683 }
2684 break;
2685
2686 #ifdef CONFIG_VIDEO_V4L2
2687
2688 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2689 * it allows for integrating the JPEG capturing calls inside standard v4l2
2690 */
2691
2692 case VIDIOC_QUERYCAP:
2693 {
2694 struct v4l2_capability *cap = arg;
2695
2696 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2697
2698 memset(cap, 0, sizeof(*cap));
2699 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2700 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2701 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2702 pci_name(zr->pci_dev));
2703 cap->version =
2704 KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2705 RELEASE_VERSION);
2706 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2707
2708 return 0;
2709 }
2710 break;
2711
2712 case VIDIOC_ENUM_FMT:
2713 {
2714 struct v4l2_fmtdesc *fmt = arg;
2715 int index = fmt->index, num = -1, i, flag = 0, type =
2716 fmt->type;
2717
2718 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2719 ZR_DEVNAME(zr), fmt->index);
2720
2721 switch (fmt->type) {
2722 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2723 flag = ZORAN_FORMAT_CAPTURE;
2724 break;
2725 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2726 flag = ZORAN_FORMAT_PLAYBACK;
2727 break;
2728 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2729 flag = ZORAN_FORMAT_OVERLAY;
2730 break;
2731 default:
2732 dprintk(1,
2733 KERN_ERR
2734 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2735 ZR_DEVNAME(zr), fmt->type);
2736 return -EINVAL;
2737 }
2738
2739 for (i = 0; i < zoran_num_formats; i++) {
2740 if (zoran_formats[i].flags & flag)
2741 num++;
2742 if (num == fmt->index)
2743 break;
2744 }
2745 if (fmt->index < 0 /* late, but not too late */ ||
2746 i == zoran_num_formats)
2747 return -EINVAL;
2748
2749 memset(fmt, 0, sizeof(*fmt));
2750 fmt->index = index;
2751 fmt->type = type;
2752 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2753 fmt->pixelformat = zoran_formats[i].fourcc;
2754 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2755 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2756
2757 return 0;
2758 }
2759 break;
2760
2761 case VIDIOC_G_FMT:
2762 {
2763 struct v4l2_format *fmt = arg;
2764 int type = fmt->type;
2765
2766 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2767
2768 memset(fmt, 0, sizeof(*fmt));
2769 fmt->type = type;
2770
2771 switch (fmt->type) {
2772 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2773
2774 mutex_lock(&zr->resource_lock);
2775
2776 fmt->fmt.win.w.left = fh->overlay_settings.x;
2777 fmt->fmt.win.w.top = fh->overlay_settings.y;
2778 fmt->fmt.win.w.width = fh->overlay_settings.width;
2779 fmt->fmt.win.w.height =
2780 fh->overlay_settings.height;
2781 if (fh->overlay_settings.width * 2 >
2782 BUZ_MAX_HEIGHT)
2783 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2784 else
2785 fmt->fmt.win.field = V4L2_FIELD_TOP;
2786
2787 mutex_unlock(&zr->resource_lock);
2788
2789 break;
2790
2791 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2792 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2793
2794 mutex_lock(&zr->resource_lock);
2795
2796 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2797 fh->map_mode == ZORAN_MAP_MODE_RAW) {
2798
2799 fmt->fmt.pix.width =
2800 fh->v4l_settings.width;
2801 fmt->fmt.pix.height =
2802 fh->v4l_settings.height;
2803 fmt->fmt.pix.sizeimage =
2804 fh->v4l_buffers.buffer_size;
2805 fmt->fmt.pix.pixelformat =
2806 fh->v4l_settings.format->fourcc;
2807 fmt->fmt.pix.colorspace =
2808 fh->v4l_settings.format->colorspace;
2809 fmt->fmt.pix.bytesperline = 0;
2810 if (BUZ_MAX_HEIGHT <
2811 (fh->v4l_settings.height * 2))
2812 fmt->fmt.pix.field =
2813 V4L2_FIELD_INTERLACED;
2814 else
2815 fmt->fmt.pix.field =
2816 V4L2_FIELD_TOP;
2817
2818 } else {
2819
2820 fmt->fmt.pix.width =
2821 fh->jpg_settings.img_width /
2822 fh->jpg_settings.HorDcm;
2823 fmt->fmt.pix.height =
2824 fh->jpg_settings.img_height /
2825 (fh->jpg_settings.VerDcm *
2826 fh->jpg_settings.TmpDcm);
2827 fmt->fmt.pix.sizeimage =
2828 zoran_v4l2_calc_bufsize(&fh->
2829 jpg_settings);
2830 fmt->fmt.pix.pixelformat =
2831 V4L2_PIX_FMT_MJPEG;
2832 if (fh->jpg_settings.TmpDcm == 1)
2833 fmt->fmt.pix.field =
2834 (fh->jpg_settings.
2835 odd_even ? V4L2_FIELD_SEQ_BT :
2836 V4L2_FIELD_SEQ_BT);
2837 else
2838 fmt->fmt.pix.field =
2839 (fh->jpg_settings.
2840 odd_even ? V4L2_FIELD_TOP :
2841 V4L2_FIELD_BOTTOM);
2842
2843 fmt->fmt.pix.bytesperline = 0;
2844 fmt->fmt.pix.colorspace =
2845 V4L2_COLORSPACE_SMPTE170M;
2846 }
2847
2848 mutex_unlock(&zr->resource_lock);
2849
2850 break;
2851
2852 default:
2853 dprintk(1,
2854 KERN_ERR
2855 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2856 ZR_DEVNAME(zr), fmt->type);
2857 return -EINVAL;
2858 }
2859 return 0;
2860 }
2861 break;
2862
2863 case VIDIOC_S_FMT:
2864 {
2865 struct v4l2_format *fmt = arg;
2866 int i, res = 0;
2867 __u32 printformat;
2868
2869 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2870 ZR_DEVNAME(zr), fmt->type);
2871
2872 switch (fmt->type) {
2873 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2874
2875 dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2876 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2877 fmt->fmt.win.w.width,
2878 fmt->fmt.win.w.height,
2879 fmt->fmt.win.clipcount,
2880 fmt->fmt.win.bitmap);
2881 mutex_lock(&zr->resource_lock);
2882 res =
2883 setup_window(file, fmt->fmt.win.w.left,
2884 fmt->fmt.win.w.top,
2885 fmt->fmt.win.w.width,
2886 fmt->fmt.win.w.height,
2887 (struct video_clip __user *)
2888 fmt->fmt.win.clips,
2889 fmt->fmt.win.clipcount,
2890 fmt->fmt.win.bitmap);
2891 mutex_unlock(&zr->resource_lock);
2892 return res;
2893 break;
2894
2895 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2896 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2897
2898 printformat =
2899 __cpu_to_le32(fmt->fmt.pix.pixelformat);
2900 dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2901 fmt->fmt.pix.width, fmt->fmt.pix.height,
2902 fmt->fmt.pix.pixelformat,
2903 (char *) &printformat);
2904
2905 if (fmt->fmt.pix.bytesperline > 0) {
2906 dprintk(5,
2907 KERN_ERR "%s: bpl not supported\n",
2908 ZR_DEVNAME(zr));
2909 return -EINVAL;
2910 }
2911
2912 /* we can be requested to do JPEG/raw playback/capture */
2913 if (!
2914 (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2915 (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2916 fmt->fmt.pix.pixelformat ==
2917 V4L2_PIX_FMT_MJPEG))) {
2918 dprintk(1,
2919 KERN_ERR
2920 "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2921 ZR_DEVNAME(zr), fmt->type,
2922 fmt->fmt.pix.pixelformat,
2923 (char *) &printformat);
2924 return -EINVAL;
2925 }
2926
2927 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2928 mutex_lock(&zr->resource_lock);
2929
2930 settings = fh->jpg_settings;
2931
2932 if (fh->v4l_buffers.allocated ||
2933 fh->jpg_buffers.allocated) {
2934 dprintk(1,
2935 KERN_ERR
2936 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2937 ZR_DEVNAME(zr));
2938 res = -EBUSY;
2939 goto sfmtjpg_unlock_and_return;
2940 }
2941
2942 /* we actually need to set 'real' parameters now */
2943 if ((fmt->fmt.pix.height * 2) >
2944 BUZ_MAX_HEIGHT)
2945 settings.TmpDcm = 1;
2946 else
2947 settings.TmpDcm = 2;
2948 settings.decimation = 0;
2949 if (fmt->fmt.pix.height <=
2950 fh->jpg_settings.img_height / 2)
2951 settings.VerDcm = 2;
2952 else
2953 settings.VerDcm = 1;
2954 if (fmt->fmt.pix.width <=
2955 fh->jpg_settings.img_width / 4)
2956 settings.HorDcm = 4;
2957 else if (fmt->fmt.pix.width <=
2958 fh->jpg_settings.img_width / 2)
2959 settings.HorDcm = 2;
2960 else
2961 settings.HorDcm = 1;
2962 if (settings.TmpDcm == 1)
2963 settings.field_per_buff = 2;
2964 else
2965 settings.field_per_buff = 1;
2966
2967 /* check */
2968 if ((res =
2969 zoran_check_jpg_settings(zr,
2970 &settings)))
2971 goto sfmtjpg_unlock_and_return;
2972
2973 /* it's ok, so set them */
2974 fh->jpg_settings = settings;
2975
2976 /* tell the user what we actually did */
2977 fmt->fmt.pix.width =
2978 settings.img_width / settings.HorDcm;
2979 fmt->fmt.pix.height =
2980 settings.img_height * 2 /
2981 (settings.TmpDcm * settings.VerDcm);
2982 if (settings.TmpDcm == 1)
2983 fmt->fmt.pix.field =
2984 (fh->jpg_settings.
2985 odd_even ? V4L2_FIELD_SEQ_TB :
2986 V4L2_FIELD_SEQ_BT);
2987 else
2988 fmt->fmt.pix.field =
2989 (fh->jpg_settings.
2990 odd_even ? V4L2_FIELD_TOP :
2991 V4L2_FIELD_BOTTOM);
2992 fh->jpg_buffers.buffer_size =
2993 zoran_v4l2_calc_bufsize(&fh->
2994 jpg_settings);
2995 fmt->fmt.pix.sizeimage =
2996 fh->jpg_buffers.buffer_size;
2997
2998 /* we hereby abuse this variable to show that
2999 * we're gonna do mjpeg capture */
3000 fh->map_mode =
3001 (fmt->type ==
3002 V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
3003 ZORAN_MAP_MODE_JPG_REC :
3004 ZORAN_MAP_MODE_JPG_PLAY;
3005 sfmtjpg_unlock_and_return:
3006 mutex_unlock(&zr->resource_lock);
3007 } else {
3008 for (i = 0; i < zoran_num_formats; i++)
3009 if (fmt->fmt.pix.pixelformat ==
3010 zoran_formats[i].fourcc)
3011 break;
3012 if (i == zoran_num_formats) {
3013 dprintk(1,
3014 KERN_ERR
3015 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
3016 ZR_DEVNAME(zr),
3017 fmt->fmt.pix.pixelformat,
3018 (char *) &printformat);
3019 return -EINVAL;
3020 }
3021 mutex_lock(&zr->resource_lock);
3022 if (fh->jpg_buffers.allocated ||
3023 (fh->v4l_buffers.allocated &&
3024 fh->v4l_buffers.active !=
3025 ZORAN_FREE)) {
3026 dprintk(1,
3027 KERN_ERR
3028 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
3029 ZR_DEVNAME(zr));
3030 res = -EBUSY;
3031 goto sfmtv4l_unlock_and_return;
3032 }
3033 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
3034 fmt->fmt.pix.height =
3035 BUZ_MAX_HEIGHT;
3036 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
3037 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
3038
3039 if ((res =
3040 zoran_v4l_set_format(file,
3041 fmt->fmt.pix.
3042 width,
3043 fmt->fmt.pix.
3044 height,
3045 &zoran_formats
3046 [i])))
3047 goto sfmtv4l_unlock_and_return;
3048
3049 /* tell the user the
3050 * results/missing stuff */
3051 fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size /*zr->gbpl * zr->gheight */
3052 ;
3053 if (BUZ_MAX_HEIGHT <
3054 (fh->v4l_settings.height * 2))
3055 fmt->fmt.pix.field =
3056 V4L2_FIELD_INTERLACED;
3057 else
3058 fmt->fmt.pix.field =
3059 V4L2_FIELD_TOP;
3060
3061 fh->map_mode = ZORAN_MAP_MODE_RAW;
3062 sfmtv4l_unlock_and_return:
3063 mutex_unlock(&zr->resource_lock);
3064 }
3065
3066 break;
3067
3068 default:
3069 dprintk(3, "unsupported\n");
3070 dprintk(1,
3071 KERN_ERR
3072 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3073 ZR_DEVNAME(zr), fmt->type);
3074 return -EINVAL;
3075 }
3076
3077 return res;
3078 }
3079 break;
3080
3081 case VIDIOC_G_FBUF:
3082 {
3083 struct v4l2_framebuffer *fb = arg;
3084
3085 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3086
3087 memset(fb, 0, sizeof(*fb));
3088 mutex_lock(&zr->resource_lock);
3089 fb->base = zr->buffer.base;
3090 fb->fmt.width = zr->buffer.width;
3091 fb->fmt.height = zr->buffer.height;
3092 if (zr->overlay_settings.format) {
3093 fb->fmt.pixelformat =
3094 fh->overlay_settings.format->fourcc;
3095 }
3096 fb->fmt.bytesperline = zr->buffer.bytesperline;
3097 mutex_unlock(&zr->resource_lock);
3098 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3099 fb->fmt.field = V4L2_FIELD_INTERLACED;
3100 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3101 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3102
3103 return 0;
3104 }
3105 break;
3106
3107 case VIDIOC_S_FBUF:
3108 {
3109 int i, res = 0;
3110 struct v4l2_framebuffer *fb = arg;
3111 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3112
3113 dprintk(3,
3114 KERN_DEBUG
3115 "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3116 ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3117 fb->fmt.bytesperline, fb->fmt.pixelformat,
3118 (char *) &printformat);
3119
3120 for (i = 0; i < zoran_num_formats; i++)
3121 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3122 break;
3123 if (i == zoran_num_formats) {
3124 dprintk(1,
3125 KERN_ERR
3126 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3127 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3128 (char *) &printformat);
3129 return -EINVAL;
3130 }
3131
3132 mutex_lock(&zr->resource_lock);
3133 res =
3134 setup_fbuffer(file, fb->base, &zoran_formats[i],
3135 fb->fmt.width, fb->fmt.height,
3136 fb->fmt.bytesperline);
3137 mutex_unlock(&zr->resource_lock);
3138
3139 return res;
3140 }
3141 break;
3142
3143 case VIDIOC_OVERLAY:
3144 {
3145 int *on = arg, res;
3146
3147 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3148 ZR_DEVNAME(zr), *on);
3149
3150 mutex_lock(&zr->resource_lock);
3151 res = setup_overlay(file, *on);
3152 mutex_unlock(&zr->resource_lock);
3153
3154 return res;
3155 }
3156 break;
3157
3158 case VIDIOC_REQBUFS:
3159 {
3160 struct v4l2_requestbuffers *req = arg;
3161 int res = 0;
3162
3163 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3164 ZR_DEVNAME(zr), req->type);
3165
3166 if (req->memory != V4L2_MEMORY_MMAP) {
3167 dprintk(1,
3168 KERN_ERR
3169 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3170 ZR_DEVNAME(zr), req->memory);
3171 return -EINVAL;
3172 }
3173
3174 mutex_lock(&zr->resource_lock);
3175
3176 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3177 dprintk(1,
3178 KERN_ERR
3179 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3180 ZR_DEVNAME(zr));
3181 res = -EBUSY;
3182 goto v4l2reqbuf_unlock_and_return;
3183 }
3184
3185 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3186 req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3187
3188 /* control user input */
3189 if (req->count < 2)
3190 req->count = 2;
3191 if (req->count > v4l_nbufs)
3192 req->count = v4l_nbufs;
3193 fh->v4l_buffers.num_buffers = req->count;
3194
3195 if (v4l_fbuffer_alloc(file)) {
3196 res = -ENOMEM;
3197 goto v4l2reqbuf_unlock_and_return;
3198 }
3199
3200 /* The next mmap will map the V4L buffers */
3201 fh->map_mode = ZORAN_MAP_MODE_RAW;
3202
3203 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3204 fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3205
3206 /* we need to calculate size ourselves now */
3207 if (req->count < 4)
3208 req->count = 4;
3209 if (req->count > jpg_nbufs)
3210 req->count = jpg_nbufs;
3211 fh->jpg_buffers.num_buffers = req->count;
3212 fh->jpg_buffers.buffer_size =
3213 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3214
3215 if (jpg_fbuffer_alloc(file)) {
3216 res = -ENOMEM;
3217 goto v4l2reqbuf_unlock_and_return;
3218 }
3219
3220 /* The next mmap will map the MJPEG buffers */
3221 if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3222 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3223 else
3224 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3225
3226 } else {
3227 dprintk(1,
3228 KERN_ERR
3229 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3230 ZR_DEVNAME(zr), req->type);
3231 res = -EINVAL;
3232 goto v4l2reqbuf_unlock_and_return;
3233 }
3234 v4l2reqbuf_unlock_and_return:
3235 mutex_unlock(&zr->resource_lock);
3236
3237 return 0;
3238 }
3239 break;
3240
3241 case VIDIOC_QUERYBUF:
3242 {
3243 struct v4l2_buffer *buf = arg;
3244 __u32 type = buf->type;
3245 int index = buf->index, res;
3246
3247 dprintk(3,
3248 KERN_DEBUG
3249 "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3250 ZR_DEVNAME(zr), buf->index, buf->type);
3251
3252 memset(buf, 0, sizeof(buf));
3253 buf->type = type;
3254 buf->index = index;
3255
3256 mutex_lock(&zr->resource_lock);
3257 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3258 mutex_unlock(&zr->resource_lock);
3259
3260 return res;
3261 }
3262 break;
3263
3264 case VIDIOC_QBUF:
3265 {
3266 struct v4l2_buffer *buf = arg;
3267 int res = 0, codec_mode, buf_type;
3268
3269 dprintk(3,
3270 KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3271 ZR_DEVNAME(zr), buf->type, buf->index);
3272
3273 mutex_lock(&zr->resource_lock);
3274
3275 switch (fh->map_mode) {
3276 case ZORAN_MAP_MODE_RAW:
3277 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3278 dprintk(1,
3279 KERN_ERR
3280 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3281 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3282 res = -EINVAL;
3283 goto qbuf_unlock_and_return;
3284 }
3285
3286 res = zoran_v4l_queue_frame(file, buf->index);
3287 if (res)
3288 goto qbuf_unlock_and_return;
3289 if (!zr->v4l_memgrab_active &&
3290 fh->v4l_buffers.active == ZORAN_LOCKED)
3291 zr36057_set_memgrab(zr, 1);
3292 break;
3293
3294 case ZORAN_MAP_MODE_JPG_REC:
3295 case ZORAN_MAP_MODE_JPG_PLAY:
3296 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3297 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3298 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3299 } else {
3300 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3301 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3302 }
3303
3304 if (buf->type != buf_type) {
3305 dprintk(1,
3306 KERN_ERR
3307 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3308 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3309 res = -EINVAL;
3310 goto qbuf_unlock_and_return;
3311 }
3312
3313 res =
3314 zoran_jpg_queue_frame(file, buf->index,
3315 codec_mode);
3316 if (res != 0)
3317 goto qbuf_unlock_and_return;
3318 if (zr->codec_mode == BUZ_MODE_IDLE &&
3319 fh->jpg_buffers.active == ZORAN_LOCKED) {
3320 zr36057_enable_jpg(zr, codec_mode);
3321 }
3322 break;
3323
3324 default:
3325 dprintk(1,
3326 KERN_ERR
3327 "%s: VIDIOC_QBUF - unsupported type %d\n",
3328 ZR_DEVNAME(zr), buf->type);
3329 res = -EINVAL;
3330 goto qbuf_unlock_and_return;
3331 }
3332 qbuf_unlock_and_return:
3333 mutex_unlock(&zr->resource_lock);
3334
3335 return res;
3336 }
3337 break;
3338
3339 case VIDIOC_DQBUF:
3340 {
3341 struct v4l2_buffer *buf = arg;
3342 int res = 0, buf_type, num = -1; /* compiler borks here (?) */
3343
3344 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3345 ZR_DEVNAME(zr), buf->type);
3346
3347 mutex_lock(&zr->resource_lock);
3348
3349 switch (fh->map_mode) {
3350 case ZORAN_MAP_MODE_RAW:
3351 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3352 dprintk(1,
3353 KERN_ERR
3354 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3355 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3356 res = -EINVAL;
3357 goto dqbuf_unlock_and_return;
3358 }
3359
3360 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3361 if (file->f_flags & O_NONBLOCK &&
3362 zr->v4l_buffers.buffer[num].state !=
3363 BUZ_STATE_DONE) {
3364 res = -EAGAIN;
3365 goto dqbuf_unlock_and_return;
3366 }
3367 res = v4l_sync(file, num);
3368 if (res)
3369 goto dqbuf_unlock_and_return;
3370 else
3371 zr->v4l_sync_tail++;
3372 res = zoran_v4l2_buffer_status(file, buf, num);
3373 break;
3374
3375 case ZORAN_MAP_MODE_JPG_REC:
3376 case ZORAN_MAP_MODE_JPG_PLAY:
3377 {
3378 struct zoran_sync bs;
3379
3380 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3381 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3382 else
3383 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3384
3385 if (buf->type != buf_type) {
3386 dprintk(1,
3387 KERN_ERR
3388 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3389 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3390 res = -EINVAL;
3391 goto dqbuf_unlock_and_return;
3392 }
3393
3394 num =
3395 zr->jpg_pend[zr->
3396 jpg_que_tail & BUZ_MASK_FRAME];
3397
3398 if (file->f_flags & O_NONBLOCK &&
3399 zr->jpg_buffers.buffer[num].state !=
3400 BUZ_STATE_DONE) {
3401 res = -EAGAIN;
3402 goto dqbuf_unlock_and_return;
3403 }
3404 res = jpg_sync(file, &bs);
3405 if (res)
3406 goto dqbuf_unlock_and_return;
3407 res =
3408 zoran_v4l2_buffer_status(file, buf, bs.frame);
3409 break;
3410 }
3411
3412 default:
3413 dprintk(1,
3414 KERN_ERR
3415 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3416 ZR_DEVNAME(zr), buf->type);
3417 res = -EINVAL;
3418 goto dqbuf_unlock_and_return;
3419 }
3420 dqbuf_unlock_and_return:
3421 mutex_unlock(&zr->resource_lock);
3422
3423 return res;
3424 }
3425 break;
3426
3427 case VIDIOC_STREAMON:
3428 {
3429 int res = 0;
3430
3431 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3432
3433 mutex_lock(&zr->resource_lock);
3434
3435 switch (fh->map_mode) {
3436 case ZORAN_MAP_MODE_RAW: /* raw capture */
3437 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3438 fh->v4l_buffers.active != ZORAN_ACTIVE) {
3439 res = -EBUSY;
3440 goto strmon_unlock_and_return;
3441 }
3442
3443 zr->v4l_buffers.active = fh->v4l_buffers.active =
3444 ZORAN_LOCKED;
3445 zr->v4l_settings = fh->v4l_settings;
3446
3447 zr->v4l_sync_tail = zr->v4l_pend_tail;
3448 if (!zr->v4l_memgrab_active &&
3449 zr->v4l_pend_head != zr->v4l_pend_tail) {
3450 zr36057_set_memgrab(zr, 1);
3451 }
3452 break;
3453
3454 case ZORAN_MAP_MODE_JPG_REC:
3455 case ZORAN_MAP_MODE_JPG_PLAY:
3456 /* what is the codec mode right now? */
3457 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3458 fh->jpg_buffers.active != ZORAN_ACTIVE) {
3459 res = -EBUSY;
3460 goto strmon_unlock_and_return;
3461 }
3462
3463 zr->jpg_buffers.active = fh->jpg_buffers.active =
3464 ZORAN_LOCKED;
3465
3466 if (zr->jpg_que_head != zr->jpg_que_tail) {
3467 /* Start the jpeg codec when the first frame is queued */
3468 jpeg_start(zr);
3469 }
3470
3471 break;
3472 default:
3473 dprintk(1,
3474 KERN_ERR
3475 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3476 ZR_DEVNAME(zr), fh->map_mode);
3477 res = -EINVAL;
3478 goto strmon_unlock_and_return;
3479 }
3480 strmon_unlock_and_return:
3481 mutex_unlock(&zr->resource_lock);
3482
3483 return res;
3484 }
3485 break;
3486
3487 case VIDIOC_STREAMOFF:
3488 {
3489 int i, res = 0;
3490
3491 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3492
3493 mutex_lock(&zr->resource_lock);
3494
3495 switch (fh->map_mode) {
3496 case ZORAN_MAP_MODE_RAW: /* raw capture */
3497 if (fh->v4l_buffers.active == ZORAN_FREE &&
3498 zr->v4l_buffers.active != ZORAN_FREE) {
3499 res = -EPERM; /* stay off other's settings! */
3500 goto strmoff_unlock_and_return;
3501 }
3502 if (zr->v4l_buffers.active == ZORAN_FREE)
3503 goto strmoff_unlock_and_return;
3504
3505 /* unload capture */
3506 if (zr->v4l_memgrab_active)
3507 zr36057_set_memgrab(zr, 0);
3508
3509 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3510 zr->v4l_buffers.buffer[i].state =
3511 BUZ_STATE_USER;
3512 fh->v4l_buffers = zr->v4l_buffers;
3513
3514 zr->v4l_buffers.active = fh->v4l_buffers.active =
3515 ZORAN_FREE;
3516
3517 zr->v4l_grab_seq = 0;
3518 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3519 zr->v4l_sync_tail = 0;
3520
3521 break;
3522
3523 case ZORAN_MAP_MODE_JPG_REC:
3524 case ZORAN_MAP_MODE_JPG_PLAY:
3525 if (fh->jpg_buffers.active == ZORAN_FREE &&
3526 zr->jpg_buffers.active != ZORAN_FREE) {
3527 res = -EPERM; /* stay off other's settings! */
3528 goto strmoff_unlock_and_return;
3529 }
3530 if (zr->jpg_buffers.active == ZORAN_FREE)
3531 goto strmoff_unlock_and_return;
3532
3533 res =
3534 jpg_qbuf(file, -1,
3535 (fh->map_mode ==
3536 ZORAN_MAP_MODE_JPG_REC) ?
3537 BUZ_MODE_MOTION_COMPRESS :
3538 BUZ_MODE_MOTION_DECOMPRESS);
3539 if (res)
3540 goto strmoff_unlock_and_return;
3541 break;
3542 default:
3543 dprintk(1,
3544 KERN_ERR
3545 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3546 ZR_DEVNAME(zr), fh->map_mode);
3547 res = -EINVAL;
3548 goto strmoff_unlock_and_return;
3549 }
3550 strmoff_unlock_and_return:
3551 mutex_unlock(&zr->resource_lock);
3552
3553 return res;
3554 }
3555 break;
3556
3557 case VIDIOC_QUERYCTRL:
3558 {
3559 struct v4l2_queryctrl *ctrl = arg;
3560
3561 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3562 ZR_DEVNAME(zr), ctrl->id);
3563
3564 /* we only support hue/saturation/contrast/brightness */
3565 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3566 ctrl->id > V4L2_CID_HUE)
3567 return -EINVAL;
3568 else {
3569 int id = ctrl->id;
3570 memset(ctrl, 0, sizeof(*ctrl));
3571 ctrl->id = id;
3572 }
3573
3574 switch (ctrl->id) {
3575 case V4L2_CID_BRIGHTNESS:
3576 strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3577 break;
3578 case V4L2_CID_CONTRAST:
3579 strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3580 break;
3581 case V4L2_CID_SATURATION:
3582 strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3583 break;
3584 case V4L2_CID_HUE:
3585 strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3586 break;
3587 }
3588
3589 ctrl->minimum = 0;
3590 ctrl->maximum = 65535;
3591 ctrl->step = 1;
3592 ctrl->default_value = 32768;
3593 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3594
3595 return 0;
3596 }
3597 break;
3598
3599 case VIDIOC_G_CTRL:
3600 {
3601 struct v4l2_control *ctrl = arg;
3602
3603 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3604 ZR_DEVNAME(zr), ctrl->id);
3605
3606 /* we only support hue/saturation/contrast/brightness */
3607 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3608 ctrl->id > V4L2_CID_HUE)
3609 return -EINVAL;
3610
3611 mutex_lock(&zr->resource_lock);
3612 switch (ctrl->id) {
3613 case V4L2_CID_BRIGHTNESS:
3614 ctrl->value = zr->brightness;
3615 break;
3616 case V4L2_CID_CONTRAST:
3617 ctrl->value = zr->contrast;
3618 break;
3619 case V4L2_CID_SATURATION:
3620 ctrl->value = zr->saturation;
3621 break;
3622 case V4L2_CID_HUE:
3623 ctrl->value = zr->hue;
3624 break;
3625 }
3626 mutex_unlock(&zr->resource_lock);
3627
3628 return 0;
3629 }
3630 break;
3631
3632 case VIDIOC_S_CTRL:
3633 {
3634 struct v4l2_control *ctrl = arg;
3635 struct video_picture pict;
3636
3637 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3638 ZR_DEVNAME(zr), ctrl->id);
3639
3640 /* we only support hue/saturation/contrast/brightness */
3641 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3642 ctrl->id > V4L2_CID_HUE)
3643 return -EINVAL;
3644
3645 if (ctrl->value < 0 || ctrl->value > 65535) {
3646 dprintk(1,
3647 KERN_ERR
3648 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3649 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3650 return -EINVAL;
3651 }
3652
3653 mutex_lock(&zr->resource_lock);
3654 switch (ctrl->id) {
3655 case V4L2_CID_BRIGHTNESS:
3656 zr->brightness = ctrl->value;
3657 break;
3658 case V4L2_CID_CONTRAST:
3659 zr->contrast = ctrl->value;
3660 break;
3661 case V4L2_CID_SATURATION:
3662 zr->saturation = ctrl->value;
3663 break;
3664 case V4L2_CID_HUE:
3665 zr->hue = ctrl->value;
3666 break;
3667 }
3668 pict.brightness = zr->brightness;
3669 pict.contrast = zr->contrast;
3670 pict.colour = zr->saturation;
3671 pict.hue = zr->hue;
3672
3673 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3674
3675 mutex_unlock(&zr->resource_lock);
3676
3677 return 0;
3678 }
3679 break;
3680
3681 case VIDIOC_ENUMSTD:
3682 {
3683 struct v4l2_standard *std = arg;
3684
3685 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3686 ZR_DEVNAME(zr), std->index);
3687
3688 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3689 return -EINVAL;
3690 else {
3691 int id = std->index;
3692 memset(std, 0, sizeof(*std));
3693 std->index = id;
3694 }
3695
3696 if (std->index == zr->card.norms) {
3697 /* if we have autodetect, ... */
3698 struct video_decoder_capability caps;
3699 decoder_command(zr, DECODER_GET_CAPABILITIES,
3700 &caps);
3701 if (caps.flags & VIDEO_DECODER_AUTO) {
3702 std->id = V4L2_STD_ALL;
3703 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3704 return 0;
3705 } else
3706 return -EINVAL;
3707 }
3708 switch (std->index) {
3709 case 0:
3710 std->id = V4L2_STD_PAL;
3711 strncpy(std->name, "PAL", sizeof(std->name)-1);
3712 std->frameperiod.numerator = 1;
3713 std->frameperiod.denominator = 25;
3714 std->framelines = zr->card.tvn[0]->Ht;
3715 break;
3716 case 1:
3717 std->id = V4L2_STD_NTSC;
3718 strncpy(std->name, "NTSC", sizeof(std->name)-1);
3719 std->frameperiod.numerator = 1001;
3720 std->frameperiod.denominator = 30000;
3721 std->framelines = zr->card.tvn[1]->Ht;
3722 break;
3723 case 2:
3724 std->id = V4L2_STD_SECAM;
3725 strncpy(std->name, "SECAM", sizeof(std->name)-1);
3726 std->frameperiod.numerator = 1;
3727 std->frameperiod.denominator = 25;
3728 std->framelines = zr->card.tvn[2]->Ht;
3729 break;
3730 }
3731
3732 return 0;
3733 }
3734 break;
3735
3736 case VIDIOC_G_STD:
3737 {
3738 v4l2_std_id *std = arg;
3739 int norm;
3740
3741 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3742
3743 mutex_lock(&zr->resource_lock);
3744 norm = zr->norm;
3745 mutex_unlock(&zr->resource_lock);
3746
3747 switch (norm) {
3748 case VIDEO_MODE_PAL:
3749 *std = V4L2_STD_PAL;
3750 break;
3751 case VIDEO_MODE_NTSC:
3752 *std = V4L2_STD_NTSC;
3753 break;
3754 case VIDEO_MODE_SECAM:
3755 *std = V4L2_STD_SECAM;
3756 break;
3757 }
3758
3759 return 0;
3760 }
3761 break;
3762
3763 case VIDIOC_S_STD:
3764 {
3765 int norm = -1, res = 0;
3766 v4l2_std_id *std = arg;
3767
3768 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3769 ZR_DEVNAME(zr), (unsigned long long)*std);
3770
3771 if (*std == V4L2_STD_PAL)
3772 norm = VIDEO_MODE_PAL;
3773 else if (*std == V4L2_STD_NTSC)
3774 norm = VIDEO_MODE_NTSC;
3775 else if (*std == V4L2_STD_SECAM)
3776 norm = VIDEO_MODE_SECAM;
3777 else if (*std == V4L2_STD_ALL)
3778 norm = VIDEO_MODE_AUTO;
3779 else {
3780 dprintk(1,
3781 KERN_ERR
3782 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3783 ZR_DEVNAME(zr), (unsigned long long)*std);
3784 return -EINVAL;
3785 }
3786
3787 mutex_lock(&zr->resource_lock);
3788 if ((res = zoran_set_norm(zr, norm)))
3789 goto sstd_unlock_and_return;
3790
3791 res = wait_grab_pending(zr);
3792 sstd_unlock_and_return:
3793 mutex_unlock(&zr->resource_lock);
3794 return res;
3795 }
3796 break;
3797
3798 case VIDIOC_ENUMINPUT:
3799 {
3800 struct v4l2_input *inp = arg;
3801 int status;
3802
3803 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3804 ZR_DEVNAME(zr), inp->index);
3805
3806 if (inp->index < 0 || inp->index >= zr->card.inputs)
3807 return -EINVAL;
3808 else {
3809 int id = inp->index;
3810 memset(inp, 0, sizeof(*inp));
3811 inp->index = id;
3812 }
3813
3814 strncpy(inp->name, zr->card.input[inp->index].name,
3815 sizeof(inp->name) - 1);
3816 inp->type = V4L2_INPUT_TYPE_CAMERA;
3817 inp->std = V4L2_STD_ALL;
3818
3819 /* Get status of video decoder */
3820 mutex_lock(&zr->resource_lock);
3821 decoder_command(zr, DECODER_GET_STATUS, &status);
3822 mutex_unlock(&zr->resource_lock);
3823
3824 if (!(status & DECODER_STATUS_GOOD)) {
3825 inp->status |= V4L2_IN_ST_NO_POWER;
3826 inp->status |= V4L2_IN_ST_NO_SIGNAL;
3827 }
3828 if (!(status & DECODER_STATUS_COLOR))
3829 inp->status |= V4L2_IN_ST_NO_COLOR;
3830
3831 return 0;
3832 }
3833 break;
3834
3835 case VIDIOC_G_INPUT:
3836 {
3837 int *input = arg;
3838
3839 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3840
3841 mutex_lock(&zr->resource_lock);
3842 *input = zr->input;
3843 mutex_unlock(&zr->resource_lock);
3844
3845 return 0;
3846 }
3847 break;
3848
3849 case VIDIOC_S_INPUT:
3850 {
3851 int *input = arg, res = 0;
3852
3853 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3854 ZR_DEVNAME(zr), *input);
3855
3856 mutex_lock(&zr->resource_lock);
3857 if ((res = zoran_set_input(zr, *input)))
3858 goto sinput_unlock_and_return;
3859
3860 /* Make sure the changes come into effect */
3861 res = wait_grab_pending(zr);
3862 sinput_unlock_and_return:
3863 mutex_unlock(&zr->resource_lock);
3864 return res;
3865 }
3866 break;
3867
3868 case VIDIOC_ENUMOUTPUT:
3869 {
3870 struct v4l2_output *outp = arg;
3871
3872 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3873 ZR_DEVNAME(zr), outp->index);
3874
3875 if (outp->index != 0)
3876 return -EINVAL;
3877
3878 memset(outp, 0, sizeof(*outp));
3879 outp->index = 0;
3880 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3881 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3882
3883 return 0;
3884 }
3885 break;
3886
3887 case VIDIOC_G_OUTPUT:
3888 {
3889 int *output = arg;
3890
3891 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3892
3893 *output = 0;
3894
3895 return 0;
3896 }
3897 break;
3898
3899 case VIDIOC_S_OUTPUT:
3900 {
3901 int *output = arg;
3902
3903 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3904 ZR_DEVNAME(zr), *output);
3905
3906 if (*output != 0)
3907 return -EINVAL;
3908
3909 return 0;
3910 }
3911 break;
3912
3913 /* cropping (sub-frame capture) */
3914 case VIDIOC_CROPCAP:
3915 {
3916 struct v4l2_cropcap *cropcap = arg;
3917 int type = cropcap->type, res = 0;
3918
3919 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3920 ZR_DEVNAME(zr), cropcap->type);
3921
3922 memset(cropcap, 0, sizeof(*cropcap));
3923 cropcap->type = type;
3924
3925 mutex_lock(&zr->resource_lock);
3926
3927 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3928 (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3929 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3930 dprintk(1,
3931 KERN_ERR
3932 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3933 ZR_DEVNAME(zr));
3934 res = -EINVAL;
3935 goto cropcap_unlock_and_return;
3936 }
3937
3938 cropcap->bounds.top = cropcap->bounds.left = 0;
3939 cropcap->bounds.width = BUZ_MAX_WIDTH;
3940 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3941 cropcap->defrect.top = cropcap->defrect.left = 0;
3942 cropcap->defrect.width = BUZ_MIN_WIDTH;
3943 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3944 cropcap_unlock_and_return:
3945 mutex_unlock(&zr->resource_lock);
3946 return res;
3947 }
3948 break;
3949
3950 case VIDIOC_G_CROP:
3951 {
3952 struct v4l2_crop *crop = arg;
3953 int type = crop->type, res = 0;
3954
3955 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3956 ZR_DEVNAME(zr), crop->type);
3957
3958 memset(crop, 0, sizeof(*crop));
3959 crop->type = type;
3960
3961 mutex_lock(&zr->resource_lock);
3962
3963 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3964 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3965 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3966 dprintk(1,
3967 KERN_ERR
3968 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3969 ZR_DEVNAME(zr));
3970 res = -EINVAL;
3971 goto gcrop_unlock_and_return;
3972 }
3973
3974 crop->c.top = fh->jpg_settings.img_y;
3975 crop->c.left = fh->jpg_settings.img_x;
3976 crop->c.width = fh->jpg_settings.img_width;
3977 crop->c.height = fh->jpg_settings.img_height;
3978
3979 gcrop_unlock_and_return:
3980 mutex_unlock(&zr->resource_lock);
3981
3982 return res;
3983 }
3984 break;
3985
3986 case VIDIOC_S_CROP:
3987 {
3988 struct v4l2_crop *crop = arg;
3989 int res = 0;
3990
3991 settings = fh->jpg_settings;
3992
3993 dprintk(3,
3994 KERN_ERR
3995 "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3996 ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3997 crop->c.width, crop->c.height);
3998
3999 mutex_lock(&zr->resource_lock);
4000
4001 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
4002 dprintk(1,
4003 KERN_ERR
4004 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
4005 ZR_DEVNAME(zr));
4006 res = -EBUSY;
4007 goto scrop_unlock_and_return;
4008 }
4009
4010 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
4011 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
4012 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
4013 dprintk(1,
4014 KERN_ERR
4015 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
4016 ZR_DEVNAME(zr));
4017 res = -EINVAL;
4018 goto scrop_unlock_and_return;
4019 }
4020
4021 /* move into a form that we understand */
4022 settings.img_x = crop->c.left;
4023 settings.img_y = crop->c.top;
4024 settings.img_width = crop->c.width;
4025 settings.img_height = crop->c.height;
4026
4027 /* check validity */
4028 if ((res = zoran_check_jpg_settings(zr, &settings)))
4029 goto scrop_unlock_and_return;
4030
4031 /* accept */
4032 fh->jpg_settings = settings;
4033
4034 scrop_unlock_and_return:
4035 mutex_unlock(&zr->resource_lock);
4036 return res;
4037 }
4038 break;
4039
4040 case VIDIOC_G_JPEGCOMP:
4041 {
4042 struct v4l2_jpegcompression *params = arg;
4043
4044 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
4045 ZR_DEVNAME(zr));
4046
4047 memset(params, 0, sizeof(*params));
4048
4049 mutex_lock(&zr->resource_lock);
4050
4051 params->quality = fh->jpg_settings.jpg_comp.quality;
4052 params->APPn = fh->jpg_settings.jpg_comp.APPn;
4053 memcpy(params->APP_data,
4054 fh->jpg_settings.jpg_comp.APP_data,
4055 fh->jpg_settings.jpg_comp.APP_len);
4056 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
4057 memcpy(params->COM_data,
4058 fh->jpg_settings.jpg_comp.COM_data,
4059 fh->jpg_settings.jpg_comp.COM_len);
4060 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
4061 params->jpeg_markers =
4062 fh->jpg_settings.jpg_comp.jpeg_markers;
4063
4064 mutex_unlock(&zr->resource_lock);
4065
4066 return 0;
4067 }
4068 break;
4069
4070 case VIDIOC_S_JPEGCOMP:
4071 {
4072 struct v4l2_jpegcompression *params = arg;
4073 int res = 0;
4074
4075 settings = fh->jpg_settings;
4076
4077 dprintk(3,
4078 KERN_DEBUG
4079 "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4080 ZR_DEVNAME(zr), params->quality, params->APPn,
4081 params->APP_len, params->COM_len);
4082
4083 settings.jpg_comp = *params;
4084
4085 mutex_lock(&zr->resource_lock);
4086
4087 if (fh->v4l_buffers.active != ZORAN_FREE ||
4088 fh->jpg_buffers.active != ZORAN_FREE) {
4089 dprintk(1,
4090 KERN_WARNING
4091 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4092 ZR_DEVNAME(zr));
4093 res = -EBUSY;
4094 goto sjpegc_unlock_and_return;
4095 }
4096
4097 if ((res = zoran_check_jpg_settings(zr, &settings)))
4098 goto sjpegc_unlock_and_return;
4099 if (!fh->jpg_buffers.allocated)
4100 fh->jpg_buffers.buffer_size =
4101 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4102 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4103 sjpegc_unlock_and_return:
4104 mutex_unlock(&zr->resource_lock);
4105
4106 return 0;
4107 }
4108 break;
4109
4110 case VIDIOC_QUERYSTD: /* why is this useful? */
4111 {
4112 v4l2_std_id *std = arg;
4113
4114 dprintk(3,
4115 KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4116 ZR_DEVNAME(zr), (unsigned long long)*std);
4117
4118 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4119 *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4120 zr->card.norms == 3)) {
4121 return 0;
4122 }
4123
4124 return -EINVAL;
4125 }
4126 break;
4127
4128 case VIDIOC_TRY_FMT:
4129 {
4130 struct v4l2_format *fmt = arg;
4131 int res = 0;
4132
4133 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4134 ZR_DEVNAME(zr), fmt->type);
4135
4136 switch (fmt->type) {
4137 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4138 mutex_lock(&zr->resource_lock);
4139
4140 if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4141 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4142 if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4143 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4144 if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4145 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4146 if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4147 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4148
4149 mutex_unlock(&zr->resource_lock);
4150 break;
4151
4152 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4153 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4154 if (fmt->fmt.pix.bytesperline > 0)
4155 return -EINVAL;
4156
4157 mutex_lock(&zr->resource_lock);
4158
4159 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4160 settings = fh->jpg_settings;
4161
4162 /* we actually need to set 'real' parameters now */
4163 if ((fmt->fmt.pix.height * 2) >
4164 BUZ_MAX_HEIGHT)
4165 settings.TmpDcm = 1;
4166 else
4167 settings.TmpDcm = 2;
4168 settings.decimation = 0;
4169 if (fmt->fmt.pix.height <=
4170 fh->jpg_settings.img_height / 2)
4171 settings.VerDcm = 2;
4172 else
4173 settings.VerDcm = 1;
4174 if (fmt->fmt.pix.width <=
4175 fh->jpg_settings.img_width / 4)
4176 settings.HorDcm = 4;
4177 else if (fmt->fmt.pix.width <=
4178 fh->jpg_settings.img_width / 2)
4179 settings.HorDcm = 2;
4180 else
4181 settings.HorDcm = 1;
4182 if (settings.TmpDcm == 1)
4183 settings.field_per_buff = 2;
4184 else
4185 settings.field_per_buff = 1;
4186
4187 /* check */
4188 if ((res =
4189 zoran_check_jpg_settings(zr,
4190 &settings)))
4191 goto tryfmt_unlock_and_return;
4192
4193 /* tell the user what we actually did */
4194 fmt->fmt.pix.width =
4195 settings.img_width / settings.HorDcm;
4196 fmt->fmt.pix.height =
4197 settings.img_height * 2 /
4198 (settings.TmpDcm * settings.VerDcm);
4199 if (settings.TmpDcm == 1)
4200 fmt->fmt.pix.field =
4201 (fh->jpg_settings.
4202 odd_even ? V4L2_FIELD_SEQ_TB :
4203 V4L2_FIELD_SEQ_BT);
4204 else
4205 fmt->fmt.pix.field =
4206 (fh->jpg_settings.
4207 odd_even ? V4L2_FIELD_TOP :
4208 V4L2_FIELD_BOTTOM);
4209
4210 fmt->fmt.pix.sizeimage =
4211 zoran_v4l2_calc_bufsize(&settings);
4212 } else if (fmt->type ==
4213 V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4214 int i;
4215
4216 for (i = 0; i < zoran_num_formats; i++)
4217 if (zoran_formats[i].fourcc ==
4218 fmt->fmt.pix.pixelformat)
4219 break;
4220 if (i == zoran_num_formats) {
4221 res = -EINVAL;
4222 goto tryfmt_unlock_and_return;
4223 }
4224
4225 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4226 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4227 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4228 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4229 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4230 fmt->fmt.pix.height =
4231 BUZ_MAX_HEIGHT;
4232 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4233 fmt->fmt.pix.height =
4234 BUZ_MIN_HEIGHT;
4235 } else {
4236 res = -EINVAL;
4237 goto tryfmt_unlock_and_return;
4238 }
4239 tryfmt_unlock_and_return:
4240 mutex_unlock(&zr->resource_lock);
4241
4242 return res;
4243 break;
4244
4245 default:
4246 return -EINVAL;
4247 }
4248
4249 return 0;
4250 }
4251 break;
4252 #endif
4253
4254 default:
4255 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4256 ZR_DEVNAME(zr), cmd);
4257 return -ENOIOCTLCMD;
4258 break;
4259
4260 }
4261 return 0;
4262 }
4263
4264
4265 static int
4266 zoran_ioctl (struct inode *inode,
4267 struct file *file,
4268 unsigned int cmd,
4269 unsigned long arg)
4270 {
4271 return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4272 }
4273
4274 static unsigned int
4275 zoran_poll (struct file *file,
4276 poll_table *wait)
4277 {
4278 struct zoran_fh *fh = file->private_data;
4279 struct zoran *zr = fh->zr;
4280 wait_queue_head_t *queue = NULL;
4281 int res = 0, frame;
4282
4283 /* we should check whether buffers are ready to be synced on
4284 * (w/o waits - O_NONBLOCK) here
4285 * if ready for read (sync), return POLLIN|POLLRDNORM,
4286 * if ready for write (sync), return POLLOUT|POLLWRNORM,
4287 * if error, return POLLERR,
4288 * if no buffers queued or so, return POLLNVAL
4289 */
4290
4291 mutex_lock(&zr->resource_lock);
4292
4293 switch (fh->map_mode) {
4294 case ZORAN_MAP_MODE_RAW:
4295 if (fh->v4l_buffers.active == ZORAN_FREE ||
4296 zr->v4l_pend_head == zr->v4l_pend_tail) {
4297 dprintk(1,
4298 "%s: zoran_poll() - no buffers queued\n",
4299 ZR_DEVNAME(zr));
4300 res = POLLNVAL;
4301 goto poll_unlock_and_return;
4302 }
4303 queue = &zr->v4l_capq;
4304 frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
4305 poll_wait(file, queue, wait);
4306 if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4307 res = POLLIN | POLLRDNORM;
4308 break;
4309
4310 case ZORAN_MAP_MODE_JPG_REC:
4311 case ZORAN_MAP_MODE_JPG_PLAY:
4312 if (fh->jpg_buffers.active == ZORAN_FREE ||
4313 zr->jpg_que_head == zr->jpg_que_tail) {
4314 dprintk(1,
4315 "%s: zoran_poll() - no buffers queued\n",
4316 ZR_DEVNAME(zr));
4317 res = POLLNVAL;
4318 goto poll_unlock_and_return;
4319 }
4320 queue = &zr->jpg_capq;
4321 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4322 poll_wait(file, queue, wait);
4323 if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4324 if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4325 res = POLLIN | POLLRDNORM;
4326 else
4327 res = POLLOUT | POLLWRNORM;
4328 }
4329 break;
4330
4331 default:
4332 dprintk(1,
4333 "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4334 ZR_DEVNAME(zr), fh->map_mode);
4335 res = POLLNVAL;
4336 goto poll_unlock_and_return;
4337 }
4338
4339 poll_unlock_and_return:
4340 mutex_unlock(&zr->resource_lock);
4341
4342 return res;
4343 }
4344
4345
4346 /*
4347 * This maps the buffers to user space.
4348 *
4349 * Depending on the state of fh->map_mode
4350 * the V4L or the MJPEG buffers are mapped
4351 * per buffer or all together
4352 *
4353 * Note that we need to connect to some
4354 * unmap signal event to unmap the de-allocate
4355 * the buffer accordingly (zoran_vm_close())
4356 */
4357
4358 static void
4359 zoran_vm_open (struct vm_area_struct *vma)
4360 {
4361 struct zoran_mapping *map = vma->vm_private_data;
4362
4363 map->count++;
4364 }
4365
4366 static void
4367 zoran_vm_close (struct vm_area_struct *vma)
4368 {
4369 struct zoran_mapping *map = vma->vm_private_data;
4370 struct file *file = map->file;
4371 struct zoran_fh *fh = file->private_data;
4372 struct zoran *zr = fh->zr;
4373 int i;
4374
4375 map->count--;
4376 if (map->count == 0) {
4377 switch (fh->map_mode) {
4378 case ZORAN_MAP_MODE_JPG_REC:
4379 case ZORAN_MAP_MODE_JPG_PLAY:
4380
4381 dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4382 ZR_DEVNAME(zr));
4383
4384 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4385 if (fh->jpg_buffers.buffer[i].map == map) {
4386 fh->jpg_buffers.buffer[i].map =
4387 NULL;
4388 }
4389 }
4390 kfree(map);
4391
4392 for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4393 if (fh->jpg_buffers.buffer[i].map)
4394 break;
4395 if (i == fh->jpg_buffers.num_buffers) {
4396 mutex_lock(&zr->resource_lock);
4397
4398 if (fh->jpg_buffers.active != ZORAN_FREE) {
4399 jpg_qbuf(file, -1, zr->codec_mode);
4400 zr->jpg_buffers.allocated = 0;
4401 zr->jpg_buffers.active =
4402 fh->jpg_buffers.active =
4403 ZORAN_FREE;
4404 }
4405 //jpg_fbuffer_free(file);
4406 fh->jpg_buffers.allocated = 0;
4407 fh->jpg_buffers.ready_to_be_freed = 1;
4408
4409 mutex_unlock(&zr->resource_lock);
4410 }
4411
4412 break;
4413
4414 case ZORAN_MAP_MODE_RAW:
4415
4416 dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4417 ZR_DEVNAME(zr));
4418
4419 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4420 if (fh->v4l_buffers.buffer[i].map == map) {
4421 /* unqueue/unmap */
4422 fh->v4l_buffers.buffer[i].map =
4423 NULL;
4424 }
4425 }
4426 kfree(map);
4427
4428 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4429 if (fh->v4l_buffers.buffer[i].map)
4430 break;
4431 if (i == fh->v4l_buffers.num_buffers) {
4432 mutex_lock(&zr->resource_lock);
4433
4434 if (fh->v4l_buffers.active != ZORAN_FREE) {
4435 zr36057_set_memgrab(zr, 0);
4436 zr->v4l_buffers.allocated = 0;
4437 zr->v4l_buffers.active =
4438 fh->v4l_buffers.active =
4439 ZORAN_FREE;
4440 }
4441 //v4l_fbuffer_free(file);
4442 fh->v4l_buffers.allocated = 0;
4443 fh->v4l_buffers.ready_to_be_freed = 1;
4444
4445 mutex_unlock(&zr->resource_lock);
4446 }
4447
4448 break;
4449
4450 default:
4451 printk(KERN_ERR
4452 "%s: munmap() - internal error - unknown map mode %d\n",
4453 ZR_DEVNAME(zr), fh->map_mode);
4454 break;
4455
4456 }
4457 }
4458 }
4459
4460 static struct vm_operations_struct zoran_vm_ops = {
4461 .open = zoran_vm_open,
4462 .close = zoran_vm_close,
4463 };
4464
4465 static int
4466 zoran_mmap (struct file *file,
4467 struct vm_area_struct *vma)
4468 {
4469 struct zoran_fh *fh = file->private_data;
4470 struct zoran *zr = fh->zr;
4471 unsigned long size = (vma->vm_end - vma->vm_start);
4472 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4473 int i, j;
4474 unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4475 int first, last;
4476 struct zoran_mapping *map;
4477 int res = 0;
4478
4479 dprintk(3,
4480 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4481 ZR_DEVNAME(zr),
4482 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4483 vma->vm_start, vma->vm_end, size);
4484
4485 if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4486 !(vma->vm_flags & VM_WRITE)) {
4487 dprintk(1,
4488 KERN_ERR
4489 "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4490 ZR_DEVNAME(zr));
4491 return -EINVAL;
4492 }
4493
4494 switch (fh->map_mode) {
4495
4496 case ZORAN_MAP_MODE_JPG_REC:
4497 case ZORAN_MAP_MODE_JPG_PLAY:
4498
4499 /* lock */
4500 mutex_lock(&zr->resource_lock);
4501
4502 /* Map the MJPEG buffers */
4503 if (!fh->jpg_buffers.allocated) {
4504 dprintk(1,
4505 KERN_ERR
4506 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4507 ZR_DEVNAME(zr));
4508 res = -ENOMEM;
4509 goto jpg_mmap_unlock_and_return;
4510 }
4511
4512 first = offset / fh->jpg_buffers.buffer_size;
4513 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4514 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4515 size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4516 last < 0 || first >= fh->jpg_buffers.num_buffers ||
4517 last >= fh->jpg_buffers.num_buffers) {
4518 dprintk(1,
4519 KERN_ERR
4520 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4521 ZR_DEVNAME(zr), offset, size,
4522 fh->jpg_buffers.buffer_size,
4523 fh->jpg_buffers.num_buffers);
4524 res = -EINVAL;
4525 goto jpg_mmap_unlock_and_return;
4526 }
4527 for (i = first; i <= last; i++) {
4528 if (fh->jpg_buffers.buffer[i].map) {
4529 dprintk(1,
4530 KERN_ERR
4531 "%s: mmap(MJPEG) - buffer %d already mapped\n",
4532 ZR_DEVNAME(zr), i);
4533 res = -EBUSY;
4534 goto jpg_mmap_unlock_and_return;
4535 }
4536 }
4537
4538 /* map these buffers (v4l_buffers[i]) */
4539 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4540 if (!map) {
4541 res = -ENOMEM;
4542 goto jpg_mmap_unlock_and_return;
4543 }
4544 map->file = file;
4545 map->count = 1;
4546
4547 vma->vm_ops = &zoran_vm_ops;
4548 vma->vm_flags |= VM_DONTEXPAND;
4549 vma->vm_private_data = map;
4550
4551 for (i = first; i <= last; i++) {
4552 for (j = 0;
4553 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4554 j++) {
4555 fraglen =
4556 (le32_to_cpu(fh->jpg_buffers.buffer[i].
4557 frag_tab[2 * j + 1]) & ~1) << 1;
4558 todo = size;
4559 if (todo > fraglen)
4560 todo = fraglen;
4561 pos =
4562 le32_to_cpu((unsigned long) fh->jpg_buffers.
4563 buffer[i].frag_tab[2 * j]);
4564 /* should just be pos on i386 */
4565 page = virt_to_phys(bus_to_virt(pos))
4566 >> PAGE_SHIFT;
4567 if (remap_pfn_range(vma, start, page,
4568 todo, PAGE_SHARED)) {
4569 dprintk(1,
4570 KERN_ERR
4571 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4572 ZR_DEVNAME(zr));
4573 res = -EAGAIN;
4574 goto jpg_mmap_unlock_and_return;
4575 }
4576 size -= todo;
4577 start += todo;
4578 if (size == 0)
4579 break;
4580 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4581 frag_tab[2 * j + 1]) & 1)
4582 break; /* was last fragment */
4583 }
4584 fh->jpg_buffers.buffer[i].map = map;
4585 if (size == 0)
4586 break;
4587
4588 }
4589 jpg_mmap_unlock_and_return:
4590 mutex_unlock(&zr->resource_lock);
4591
4592 break;
4593
4594 case ZORAN_MAP_MODE_RAW:
4595
4596 mutex_lock(&zr->resource_lock);
4597
4598 /* Map the V4L buffers */
4599 if (!fh->v4l_buffers.allocated) {
4600 dprintk(1,
4601 KERN_ERR
4602 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4603 ZR_DEVNAME(zr));
4604 res = -ENOMEM;
4605 goto v4l_mmap_unlock_and_return;
4606 }
4607
4608 first = offset / fh->v4l_buffers.buffer_size;
4609 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4610 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4611 size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4612 last < 0 || first >= fh->v4l_buffers.num_buffers ||
4613 last >= fh->v4l_buffers.buffer_size) {
4614 dprintk(1,
4615 KERN_ERR
4616 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4617 ZR_DEVNAME(zr), offset, size,
4618 fh->v4l_buffers.buffer_size,
4619 fh->v4l_buffers.num_buffers);
4620 res = -EINVAL;
4621 goto v4l_mmap_unlock_and_return;
4622 }
4623 for (i = first; i <= last; i++) {
4624 if (fh->v4l_buffers.buffer[i].map) {
4625 dprintk(1,
4626 KERN_ERR
4627 "%s: mmap(V4L) - buffer %d already mapped\n",
4628 ZR_DEVNAME(zr), i);
4629 res = -EBUSY;
4630 goto v4l_mmap_unlock_and_return;
4631 }
4632 }
4633
4634 /* map these buffers (v4l_buffers[i]) */
4635 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4636 if (!map) {
4637 res = -ENOMEM;
4638 goto v4l_mmap_unlock_and_return;
4639 }
4640 map->file = file;
4641 map->count = 1;
4642
4643 vma->vm_ops = &zoran_vm_ops;
4644 vma->vm_flags |= VM_DONTEXPAND;
4645 vma->vm_private_data = map;
4646
4647 for (i = first; i <= last; i++) {
4648 todo = size;
4649 if (todo > fh->v4l_buffers.buffer_size)
4650 todo = fh->v4l_buffers.buffer_size;
4651 page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4652 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4653 todo, PAGE_SHARED)) {
4654 dprintk(1,
4655 KERN_ERR
4656 "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4657 ZR_DEVNAME(zr));
4658 res = -EAGAIN;
4659 goto v4l_mmap_unlock_and_return;
4660 }
4661 size -= todo;
4662 start += todo;
4663 fh->v4l_buffers.buffer[i].map = map;
4664 if (size == 0)
4665 break;
4666 }
4667 v4l_mmap_unlock_and_return:
4668 mutex_unlock(&zr->resource_lock);
4669
4670 break;
4671
4672 default:
4673 dprintk(1,
4674 KERN_ERR
4675 "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4676 ZR_DEVNAME(zr), fh->map_mode);
4677 break;
4678 }
4679
4680 return 0;
4681 }
4682
4683 static struct file_operations zoran_fops = {
4684 .owner = THIS_MODULE,
4685 .open = zoran_open,
4686 .release = zoran_close,
4687 .ioctl = zoran_ioctl,
4688 .compat_ioctl = v4l_compat_ioctl32,
4689 .llseek = no_llseek,
4690 .read = zoran_read,
4691 .write = zoran_write,
4692 .mmap = zoran_mmap,
4693 .poll = zoran_poll,
4694 };
4695
4696 struct video_device zoran_template __devinitdata = {
4697 .name = ZORAN_NAME,
4698 .type = ZORAN_VID_TYPE,
4699 #ifdef CONFIG_VIDEO_V4L2
4700 .type2 = ZORAN_V4L2_VID_FLAGS,
4701 #endif
4702 .hardware = ZORAN_HARDWARE,
4703 .fops = &zoran_fops,
4704 .release = &zoran_vdev_release,
4705 .minor = -1
4706 };
4707
x86 "subsystem" repository