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Diffstat (limited to 'drivers/media/video/zoran/zoran_driver.c')
-rw-r--r--drivers/media/video/zoran/zoran_driver.c4648
1 files changed, 4648 insertions, 0 deletions
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
new file mode 100644
index 000000000000..db11ab9e60da
--- /dev/null
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -0,0 +1,4648 @@
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
56#include <linux/interrupt.h>
57#include <linux/i2c.h>
58#include <linux/i2c-algo-bit.h>
59
60#include <linux/spinlock.h>
61#define MAP_NR(x) virt_to_page(x)
62#define ZORAN_VID_TYPE ( \
63 VID_TYPE_CAPTURE | \
64 VID_TYPE_OVERLAY | \
65 VID_TYPE_CLIPPING | \
66 VID_TYPE_FRAMERAM | \
67 VID_TYPE_SCALES | \
68 VID_TYPE_MJPEG_DECODER | \
69 VID_TYPE_MJPEG_ENCODER \
70 )
71
72#include <linux/videodev.h>
73#include <media/v4l2-common.h>
74#include <media/v4l2-ioctl.h>
75#include "videocodec.h"
76
77#include <asm/byteorder.h>
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 /* we declare some card type definitions here, they mean
90 * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
91#define ZORAN_V4L2_VID_FLAGS ( \
92 V4L2_CAP_STREAMING |\
93 V4L2_CAP_VIDEO_CAPTURE |\
94 V4L2_CAP_VIDEO_OUTPUT |\
95 V4L2_CAP_VIDEO_OVERLAY \
96 )
97
98
99#if defined(CONFIG_VIDEO_V4L1_COMPAT)
100#define ZFMT(pal, fcc, cs) \
101 .palette = (pal), .fourcc = (fcc), .colorspace = (cs)
102#else
103#define ZFMT(pal, fcc, cs) \
104 .fourcc = (fcc), .colorspace = (cs)
105#endif
106
107const struct zoran_format zoran_formats[] = {
108 {
109 .name = "15-bit RGB LE",
110 ZFMT(VIDEO_PALETTE_RGB555,
111 V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB),
112 .depth = 15,
113 .flags = ZORAN_FORMAT_CAPTURE |
114 ZORAN_FORMAT_OVERLAY,
115 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
116 ZR36057_VFESPFR_LittleEndian,
117 }, {
118 .name = "15-bit RGB BE",
119 ZFMT(-1,
120 V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB),
121 .depth = 15,
122 .flags = ZORAN_FORMAT_CAPTURE |
123 ZORAN_FORMAT_OVERLAY,
124 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
125 }, {
126 .name = "16-bit RGB LE",
127 ZFMT(VIDEO_PALETTE_RGB565,
128 V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
129 .depth = 16,
130 .flags = ZORAN_FORMAT_CAPTURE |
131 ZORAN_FORMAT_OVERLAY,
132 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
133 ZR36057_VFESPFR_LittleEndian,
134 }, {
135 .name = "16-bit RGB BE",
136 ZFMT(-1,
137 V4L2_PIX_FMT_RGB565X, V4L2_COLORSPACE_SRGB),
138 .depth = 16,
139 .flags = ZORAN_FORMAT_CAPTURE |
140 ZORAN_FORMAT_OVERLAY,
141 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
142 }, {
143 .name = "24-bit RGB",
144 ZFMT(VIDEO_PALETTE_RGB24,
145 V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB),
146 .depth = 24,
147 .flags = ZORAN_FORMAT_CAPTURE |
148 ZORAN_FORMAT_OVERLAY,
149 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
150 }, {
151 .name = "32-bit RGB LE",
152 ZFMT(VIDEO_PALETTE_RGB32,
153 V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB),
154 .depth = 32,
155 .flags = ZORAN_FORMAT_CAPTURE |
156 ZORAN_FORMAT_OVERLAY,
157 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
158 }, {
159 .name = "32-bit RGB BE",
160 ZFMT(-1,
161 V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB),
162 .depth = 32,
163 .flags = ZORAN_FORMAT_CAPTURE |
164 ZORAN_FORMAT_OVERLAY,
165 .vfespfr = ZR36057_VFESPFR_RGB888,
166 }, {
167 .name = "4:2:2, packed, YUYV",
168 ZFMT(VIDEO_PALETTE_YUV422,
169 V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M),
170 .depth = 16,
171 .flags = ZORAN_FORMAT_CAPTURE |
172 ZORAN_FORMAT_OVERLAY,
173 .vfespfr = ZR36057_VFESPFR_YUV422,
174 }, {
175 .name = "4:2:2, packed, UYVY",
176 ZFMT(VIDEO_PALETTE_UYVY,
177 V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M),
178 .depth = 16,
179 .flags = ZORAN_FORMAT_CAPTURE |
180 ZORAN_FORMAT_OVERLAY,
181 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
182 }, {
183 .name = "Hardware-encoded Motion-JPEG",
184 ZFMT(-1,
185 V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M),
186 .depth = 0,
187 .flags = ZORAN_FORMAT_CAPTURE |
188 ZORAN_FORMAT_PLAYBACK |
189 ZORAN_FORMAT_COMPRESSED,
190 }
191};
192#define NUM_FORMATS ARRAY_SIZE(zoran_formats)
193
194// RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
195
196
197static int lock_norm; /* 0 = default 1 = Don't change TV standard (norm) */
198module_param(lock_norm, int, 0644);
199MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
200
201 /* small helper function for calculating buffersizes for v4l2
202 * we calculate the nearest higher power-of-two, which
203 * will be the recommended buffersize */
204static __u32
205zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
206{
207 __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
208 __u32 num = (1024 * 512) / (div);
209 __u32 result = 2;
210
211 num--;
212 while (num) {
213 num >>= 1;
214 result <<= 1;
215 }
216
217 if (result > jpg_bufsize)
218 return jpg_bufsize;
219 if (result < 8192)
220 return 8192;
221 return result;
222}
223
224/* forward references */
225static void v4l_fbuffer_free(struct file *file);
226static void jpg_fbuffer_free(struct file *file);
227
228/*
229 * Allocate the V4L grab buffers
230 *
231 * These have to be pysically contiguous.
232 * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
233 * else we try to allocate them with bigphysarea_alloc_pages
234 * if the bigphysarea patch is present in the kernel,
235 * else we try to use high memory (if the user has bootet
236 * Linux with the necessary memory left over).
237 */
238
239static unsigned long
240get_high_mem (unsigned long size)
241{
242/*
243 * Check if there is usable memory at the end of Linux memory
244 * of at least size. Return the physical address of this memory,
245 * return 0 on failure.
246 *
247 * The idea is from Alexandro Rubini's book "Linux device drivers".
248 * The driver from him which is downloadable from O'Reilly's
249 * web site misses the "virt_to_phys(high_memory)" part
250 * (and therefore doesn't work at all - at least with 2.2.x kernels).
251 *
252 * It should be unnecessary to mention that THIS IS DANGEROUS,
253 * if more than one driver at a time has the idea to use this memory!!!!
254 */
255
256 volatile unsigned char __iomem *mem;
257 unsigned char c;
258 unsigned long hi_mem_ph;
259 unsigned long i;
260
261 /* Map the high memory to user space */
262
263 hi_mem_ph = virt_to_phys(high_memory);
264
265 mem = ioremap(hi_mem_ph, size);
266 if (!mem) {
267 dprintk(1,
268 KERN_ERR "%s: get_high_mem() - ioremap failed\n",
269 ZORAN_NAME);
270 return 0;
271 }
272
273 for (i = 0; i < size; i++) {
274 /* Check if it is memory */
275 c = i & 0xff;
276 writeb(c, mem + i);
277 if (readb(mem + i) != c)
278 break;
279 c = 255 - c;
280 writeb(c, mem + i);
281 if (readb(mem + i) != c)
282 break;
283 writeb(0, mem + i); /* zero out memory */
284
285 /* give the kernel air to breath */
286 if ((i & 0x3ffff) == 0x3ffff)
287 schedule();
288 }
289
290 iounmap(mem);
291
292 if (i != size) {
293 dprintk(1,
294 KERN_ERR
295 "%s: get_high_mem() - requested %lu, avail %lu\n",
296 ZORAN_NAME, size, i);
297 return 0;
298 }
299
300 return hi_mem_ph;
301}
302
303static int
304v4l_fbuffer_alloc (struct file *file)
305{
306 struct zoran_fh *fh = file->private_data;
307 struct zoran *zr = fh->zr;
308 int i, off;
309 unsigned char *mem;
310 unsigned long pmem = 0;
311
312 /* we might have old buffers lying around... */
313 if (fh->v4l_buffers.ready_to_be_freed) {
314 v4l_fbuffer_free(file);
315 }
316
317 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
318 if (fh->v4l_buffers.buffer[i].fbuffer)
319 dprintk(2,
320 KERN_WARNING
321 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
322 ZR_DEVNAME(zr), i);
323
324 //udelay(20);
325 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
326 /* Use kmalloc */
327
328 mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
329 if (!mem) {
330 dprintk(1,
331 KERN_ERR
332 "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
333 ZR_DEVNAME(zr), i);
334 v4l_fbuffer_free(file);
335 return -ENOBUFS;
336 }
337 fh->v4l_buffers.buffer[i].fbuffer = mem;
338 fh->v4l_buffers.buffer[i].fbuffer_phys =
339 virt_to_phys(mem);
340 fh->v4l_buffers.buffer[i].fbuffer_bus =
341 virt_to_bus(mem);
342 for (off = 0; off < fh->v4l_buffers.buffer_size;
343 off += PAGE_SIZE)
344 SetPageReserved(MAP_NR(mem + off));
345 dprintk(4,
346 KERN_INFO
347 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
348 ZR_DEVNAME(zr), i, (unsigned long) mem,
349 virt_to_bus(mem));
350 } else {
351
352 /* Use high memory which has been left at boot time */
353
354 /* Ok., Ok. this is an evil hack - we make
355 * the assumption that physical addresses are
356 * the same as bus addresses (true at least
357 * for Intel processors). The whole method of
358 * obtaining and using this memory is not very
359 * nice - but I hope it saves some poor users
360 * from kernel hacking, which might have even
361 * more evil results */
362
363 if (i == 0) {
364 int size =
365 fh->v4l_buffers.num_buffers *
366 fh->v4l_buffers.buffer_size;
367
368 pmem = get_high_mem(size);
369 if (pmem == 0) {
370 dprintk(1,
371 KERN_ERR
372 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
373 ZR_DEVNAME(zr), size >> 10);
374 return -ENOBUFS;
375 }
376 fh->v4l_buffers.buffer[0].fbuffer = NULL;
377 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
378 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
379 dprintk(4,
380 KERN_INFO
381 "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
382 ZR_DEVNAME(zr), size >> 10);
383 } else {
384 fh->v4l_buffers.buffer[i].fbuffer = NULL;
385 fh->v4l_buffers.buffer[i].fbuffer_phys =
386 pmem + i * fh->v4l_buffers.buffer_size;
387 fh->v4l_buffers.buffer[i].fbuffer_bus =
388 pmem + i * fh->v4l_buffers.buffer_size;
389 }
390 }
391 }
392
393 fh->v4l_buffers.allocated = 1;
394
395 return 0;
396}
397
398/* free the V4L grab buffers */
399static void
400v4l_fbuffer_free (struct file *file)
401{
402 struct zoran_fh *fh = file->private_data;
403 struct zoran *zr = fh->zr;
404 int i, off;
405 unsigned char *mem;
406
407 dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
408
409 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
410 if (!fh->v4l_buffers.buffer[i].fbuffer)
411 continue;
412
413 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
414 mem = fh->v4l_buffers.buffer[i].fbuffer;
415 for (off = 0; off < fh->v4l_buffers.buffer_size;
416 off += PAGE_SIZE)
417 ClearPageReserved(MAP_NR(mem + off));
418 kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
419 }
420 fh->v4l_buffers.buffer[i].fbuffer = NULL;
421 }
422
423 fh->v4l_buffers.allocated = 0;
424 fh->v4l_buffers.ready_to_be_freed = 0;
425}
426
427/*
428 * Allocate the MJPEG grab buffers.
429 *
430 * If the requested buffer size is smaller than MAX_KMALLOC_MEM,
431 * kmalloc is used to request a physically contiguous area,
432 * else we allocate the memory in framgents with get_zeroed_page.
433 *
434 * If a Natoma chipset is present and this is a revision 1 zr36057,
435 * each MJPEG buffer needs to be physically contiguous.
436 * (RJ: This statement is from Dave Perks' original driver,
437 * I could never check it because I have a zr36067)
438 * The driver cares about this because it reduces the buffer
439 * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
440 *
441 * RJ: The contents grab buffers needs never be accessed in the driver.
442 * Therefore there is no need to allocate them with vmalloc in order
443 * to get a contiguous virtual memory space.
444 * I don't understand why many other drivers first allocate them with
445 * vmalloc (which uses internally also get_zeroed_page, but delivers you
446 * virtual addresses) and then again have to make a lot of efforts
447 * to get the physical address.
448 *
449 * Ben Capper:
450 * On big-endian architectures (such as ppc) some extra steps
451 * are needed. When reading and writing to the stat_com array
452 * and fragment buffers, the device expects to see little-
453 * endian values. The use of cpu_to_le32() and le32_to_cpu()
454 * in this function (and one or two others in zoran_device.c)
455 * ensure that these values are always stored in little-endian
456 * form, regardless of architecture. The zr36057 does Very Bad
457 * Things on big endian architectures if the stat_com array
458 * and fragment buffers are not little-endian.
459 */
460
461static int
462jpg_fbuffer_alloc (struct file *file)
463{
464 struct zoran_fh *fh = file->private_data;
465 struct zoran *zr = fh->zr;
466 int i, j, off;
467 unsigned long mem;
468
469 /* we might have old buffers lying around */
470 if (fh->jpg_buffers.ready_to_be_freed) {
471 jpg_fbuffer_free(file);
472 }
473
474 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
475 if (fh->jpg_buffers.buffer[i].frag_tab)
476 dprintk(2,
477 KERN_WARNING
478 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
479 ZR_DEVNAME(zr), i);
480
481 /* Allocate fragment table for this buffer */
482
483 mem = get_zeroed_page(GFP_KERNEL);
484 if (mem == 0) {
485 dprintk(1,
486 KERN_ERR
487 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
488 ZR_DEVNAME(zr), i);
489 jpg_fbuffer_free(file);
490 return -ENOBUFS;
491 }
492 fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem;
493 fh->jpg_buffers.buffer[i].frag_tab_bus =
494 virt_to_bus((void *) mem);
495
496 //if (alloc_contig) {
497 if (fh->jpg_buffers.need_contiguous) {
498 mem =
499 (unsigned long) kmalloc(fh->jpg_buffers.
500 buffer_size,
501 GFP_KERNEL);
502 if (mem == 0) {
503 dprintk(1,
504 KERN_ERR
505 "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
506 ZR_DEVNAME(zr), i);
507 jpg_fbuffer_free(file);
508 return -ENOBUFS;
509 }
510 fh->jpg_buffers.buffer[i].frag_tab[0] =
511 cpu_to_le32(virt_to_bus((void *) mem));
512 fh->jpg_buffers.buffer[i].frag_tab[1] =
513 cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
514 for (off = 0; off < fh->jpg_buffers.buffer_size;
515 off += PAGE_SIZE)
516 SetPageReserved(MAP_NR(mem + off));
517 } else {
518 /* jpg_bufsize is allreay page aligned */
519 for (j = 0;
520 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
521 j++) {
522 mem = get_zeroed_page(GFP_KERNEL);
523 if (mem == 0) {
524 dprintk(1,
525 KERN_ERR
526 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
527 ZR_DEVNAME(zr), i);
528 jpg_fbuffer_free(file);
529 return -ENOBUFS;
530 }
531
532 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
533 cpu_to_le32(virt_to_bus((void *) mem));
534 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
535 1] =
536 cpu_to_le32((PAGE_SIZE / 4) << 1);
537 SetPageReserved(MAP_NR(mem));
538 }
539
540 fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
541 }
542 }
543
544 dprintk(4,
545 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
546 ZR_DEVNAME(zr),
547 (fh->jpg_buffers.num_buffers *
548 fh->jpg_buffers.buffer_size) >> 10);
549
550 fh->jpg_buffers.allocated = 1;
551
552 return 0;
553}
554
555/* free the MJPEG grab buffers */
556static void
557jpg_fbuffer_free (struct file *file)
558{
559 struct zoran_fh *fh = file->private_data;
560 struct zoran *zr = fh->zr;
561 int i, j, off;
562 unsigned char *mem;
563
564 dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
565
566 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
567 if (!fh->jpg_buffers.buffer[i].frag_tab)
568 continue;
569
570 //if (alloc_contig) {
571 if (fh->jpg_buffers.need_contiguous) {
572 if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
573 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
574 fh->jpg_buffers.buffer[i].frag_tab[0]));
575 for (off = 0;
576 off < fh->jpg_buffers.buffer_size;
577 off += PAGE_SIZE)
578 ClearPageReserved(MAP_NR
579 (mem + off));
580 kfree(mem);
581 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
582 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
583 }
584 } else {
585 for (j = 0;
586 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
587 j++) {
588 if (!fh->jpg_buffers.buffer[i].
589 frag_tab[2 * j])
590 break;
591 ClearPageReserved(MAP_NR
592 (bus_to_virt
593 (le32_to_cpu
594 (fh->jpg_buffers.
595 buffer[i].frag_tab[2 *
596 j]))));
597 free_page((unsigned long)
598 bus_to_virt
599 (le32_to_cpu
600 (fh->jpg_buffers.
601 buffer[i].
602 frag_tab[2 * j])));
603 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
604 0;
605 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
606 1] = 0;
607 }
608 }
609
610 free_page((unsigned long) fh->jpg_buffers.buffer[i].
611 frag_tab);
612 fh->jpg_buffers.buffer[i].frag_tab = NULL;
613 }
614
615 fh->jpg_buffers.allocated = 0;
616 fh->jpg_buffers.ready_to_be_freed = 0;
617}
618
619/*
620 * V4L Buffer grabbing
621 */
622
623static int
624zoran_v4l_set_format (struct file *file,
625 int width,
626 int height,
627 const struct zoran_format *format)
628{
629 struct zoran_fh *fh = file->private_data;
630 struct zoran *zr = fh->zr;
631 int bpp;
632
633 /* Check size and format of the grab wanted */
634
635 if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
636 height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
637 dprintk(1,
638 KERN_ERR
639 "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
640 ZR_DEVNAME(zr), width, height);
641 return -EINVAL;
642 }
643
644 bpp = (format->depth + 7) / 8;
645
646 /* Check against available buffer size */
647 if (height * width * bpp > fh->v4l_buffers.buffer_size) {
648 dprintk(1,
649 KERN_ERR
650 "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
651 ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
652 return -EINVAL;
653 }
654
655 /* The video front end needs 4-byte alinged line sizes */
656
657 if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
658 dprintk(1,
659 KERN_ERR
660 "%s: v4l_set_format() - wrong frame alingment\n",
661 ZR_DEVNAME(zr));
662 return -EINVAL;
663 }
664
665 fh->v4l_settings.width = width;
666 fh->v4l_settings.height = height;
667 fh->v4l_settings.format = format;
668 fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
669
670 return 0;
671}
672
673static int
674zoran_v4l_queue_frame (struct file *file,
675 int num)
676{
677 struct zoran_fh *fh = file->private_data;
678 struct zoran *zr = fh->zr;
679 unsigned long flags;
680 int res = 0;
681
682 if (!fh->v4l_buffers.allocated) {
683 dprintk(1,
684 KERN_ERR
685 "%s: v4l_queue_frame() - buffers not yet allocated\n",
686 ZR_DEVNAME(zr));
687 res = -ENOMEM;
688 }
689
690 /* No grabbing outside the buffer range! */
691 if (num >= fh->v4l_buffers.num_buffers || num < 0) {
692 dprintk(1,
693 KERN_ERR
694 "%s: v4l_queue_frame() - buffer %d is out of range\n",
695 ZR_DEVNAME(zr), num);
696 res = -EINVAL;
697 }
698
699 spin_lock_irqsave(&zr->spinlock, flags);
700
701 if (fh->v4l_buffers.active == ZORAN_FREE) {
702 if (zr->v4l_buffers.active == ZORAN_FREE) {
703 zr->v4l_buffers = fh->v4l_buffers;
704 fh->v4l_buffers.active = ZORAN_ACTIVE;
705 } else {
706 dprintk(1,
707 KERN_ERR
708 "%s: v4l_queue_frame() - another session is already capturing\n",
709 ZR_DEVNAME(zr));
710 res = -EBUSY;
711 }
712 }
713
714 /* make sure a grab isn't going on currently with this buffer */
715 if (!res) {
716 switch (zr->v4l_buffers.buffer[num].state) {
717 default:
718 case BUZ_STATE_PEND:
719 if (zr->v4l_buffers.active == ZORAN_FREE) {
720 fh->v4l_buffers.active = ZORAN_FREE;
721 zr->v4l_buffers.allocated = 0;
722 }
723 res = -EBUSY; /* what are you doing? */
724 break;
725 case BUZ_STATE_DONE:
726 dprintk(2,
727 KERN_WARNING
728 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
729 ZR_DEVNAME(zr), num);
730 case BUZ_STATE_USER:
731 /* since there is at least one unused buffer there's room for at least
732 * one more pend[] entry */
733 zr->v4l_pend[zr->v4l_pend_head++ &
734 V4L_MASK_FRAME] = num;
735 zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
736 zr->v4l_buffers.buffer[num].bs.length =
737 fh->v4l_settings.bytesperline *
738 zr->v4l_settings.height;
739 fh->v4l_buffers.buffer[num] =
740 zr->v4l_buffers.buffer[num];
741 break;
742 }
743 }
744
745 spin_unlock_irqrestore(&zr->spinlock, flags);
746
747 if (!res && zr->v4l_buffers.active == ZORAN_FREE)
748 zr->v4l_buffers.active = fh->v4l_buffers.active;
749
750 return res;
751}
752
753static int
754v4l_grab (struct file *file,
755 struct video_mmap *mp)
756{
757 struct zoran_fh *fh = file->private_data;
758 struct zoran *zr = fh->zr;
759 int res = 0, i;
760
761 for (i = 0; i < NUM_FORMATS; i++) {
762 if (zoran_formats[i].palette == mp->format &&
763 zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
764 !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
765 break;
766 }
767 if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
768 dprintk(1,
769 KERN_ERR
770 "%s: v4l_grab() - wrong bytes-per-pixel format\n",
771 ZR_DEVNAME(zr));
772 return -EINVAL;
773 }
774
775 /*
776 * To minimize the time spent in the IRQ routine, we avoid setting up
777 * the video front end there.
778 * If this grab has different parameters from a running streaming capture
779 * we stop the streaming capture and start it over again.
780 */
781 if (zr->v4l_memgrab_active &&
782 (zr->v4l_settings.width != mp->width ||
783 zr->v4l_settings.height != mp->height ||
784 zr->v4l_settings.format->palette != mp->format)) {
785 res = wait_grab_pending(zr);
786 if (res)
787 return res;
788 }
789 if ((res = zoran_v4l_set_format(file,
790 mp->width,
791 mp->height,
792 &zoran_formats[i])))
793 return res;
794 zr->v4l_settings = fh->v4l_settings;
795
796 /* queue the frame in the pending queue */
797 if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
798 fh->v4l_buffers.active = ZORAN_FREE;
799 return res;
800 }
801
802 /* put the 36057 into frame grabbing mode */
803 if (!res && !zr->v4l_memgrab_active)
804 zr36057_set_memgrab(zr, 1);
805
806 //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
807
808 return res;
809}
810
811/*
812 * Sync on a V4L buffer
813 */
814
815static int
816v4l_sync (struct file *file,
817 int frame)
818{
819 struct zoran_fh *fh = file->private_data;
820 struct zoran *zr = fh->zr;
821 unsigned long flags;
822
823 if (fh->v4l_buffers.active == ZORAN_FREE) {
824 dprintk(1,
825 KERN_ERR
826 "%s: v4l_sync() - no grab active for this session\n",
827 ZR_DEVNAME(zr));
828 return -EINVAL;
829 }
830
831 /* check passed-in frame number */
832 if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
833 dprintk(1,
834 KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
835 ZR_DEVNAME(zr), frame);
836 return -EINVAL;
837 }
838
839 /* Check if is buffer was queued at all */
840 if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
841 dprintk(1,
842 KERN_ERR
843 "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
844 ZR_DEVNAME(zr));
845 return -EPROTO;
846 }
847
848 /* wait on this buffer to get ready */
849 if (!wait_event_interruptible_timeout(zr->v4l_capq,
850 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
851 10*HZ))
852 return -ETIME;
853 if (signal_pending(current))
854 return -ERESTARTSYS;
855
856 /* buffer should now be in BUZ_STATE_DONE */
857 if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
858 dprintk(2,
859 KERN_ERR "%s: v4l_sync() - internal state error\n",
860 ZR_DEVNAME(zr));
861
862 zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
863 fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
864
865 spin_lock_irqsave(&zr->spinlock, flags);
866
867 /* Check if streaming capture has finished */
868 if (zr->v4l_pend_tail == zr->v4l_pend_head) {
869 zr36057_set_memgrab(zr, 0);
870 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
871 fh->v4l_buffers.active = zr->v4l_buffers.active =
872 ZORAN_FREE;
873 zr->v4l_buffers.allocated = 0;
874 }
875 }
876
877 spin_unlock_irqrestore(&zr->spinlock, flags);
878
879 return 0;
880}
881
882/*
883 * Queue a MJPEG buffer for capture/playback
884 */
885
886static int
887zoran_jpg_queue_frame (struct file *file,
888 int num,
889 enum zoran_codec_mode mode)
890{
891 struct zoran_fh *fh = file->private_data;
892 struct zoran *zr = fh->zr;
893 unsigned long flags;
894 int res = 0;
895
896 /* Check if buffers are allocated */
897 if (!fh->jpg_buffers.allocated) {
898 dprintk(1,
899 KERN_ERR
900 "%s: jpg_queue_frame() - buffers not yet allocated\n",
901 ZR_DEVNAME(zr));
902 return -ENOMEM;
903 }
904
905 /* No grabbing outside the buffer range! */
906 if (num >= fh->jpg_buffers.num_buffers || num < 0) {
907 dprintk(1,
908 KERN_ERR
909 "%s: jpg_queue_frame() - buffer %d out of range\n",
910 ZR_DEVNAME(zr), num);
911 return -EINVAL;
912 }
913
914 /* what is the codec mode right now? */
915 if (zr->codec_mode == BUZ_MODE_IDLE) {
916 zr->jpg_settings = fh->jpg_settings;
917 } else if (zr->codec_mode != mode) {
918 /* wrong codec mode active - invalid */
919 dprintk(1,
920 KERN_ERR
921 "%s: jpg_queue_frame() - codec in wrong mode\n",
922 ZR_DEVNAME(zr));
923 return -EINVAL;
924 }
925
926 if (fh->jpg_buffers.active == ZORAN_FREE) {
927 if (zr->jpg_buffers.active == ZORAN_FREE) {
928 zr->jpg_buffers = fh->jpg_buffers;
929 fh->jpg_buffers.active = ZORAN_ACTIVE;
930 } else {
931 dprintk(1,
932 KERN_ERR
933 "%s: jpg_queue_frame() - another session is already capturing\n",
934 ZR_DEVNAME(zr));
935 res = -EBUSY;
936 }
937 }
938
939 if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
940 /* Ok load up the jpeg codec */
941 zr36057_enable_jpg(zr, mode);
942 }
943
944 spin_lock_irqsave(&zr->spinlock, flags);
945
946 if (!res) {
947 switch (zr->jpg_buffers.buffer[num].state) {
948 case BUZ_STATE_DONE:
949 dprintk(2,
950 KERN_WARNING
951 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
952 ZR_DEVNAME(zr));
953 case BUZ_STATE_USER:
954 /* since there is at least one unused buffer there's room for at
955 *least one more pend[] entry */
956 zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
957 num;
958 zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
959 fh->jpg_buffers.buffer[num] =
960 zr->jpg_buffers.buffer[num];
961 zoran_feed_stat_com(zr);
962 break;
963 default:
964 case BUZ_STATE_DMA:
965 case BUZ_STATE_PEND:
966 if (zr->jpg_buffers.active == ZORAN_FREE) {
967 fh->jpg_buffers.active = ZORAN_FREE;
968 zr->jpg_buffers.allocated = 0;
969 }
970 res = -EBUSY; /* what are you doing? */
971 break;
972 }
973 }
974
975 spin_unlock_irqrestore(&zr->spinlock, flags);
976
977 if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
978 zr->jpg_buffers.active = fh->jpg_buffers.active;
979 }
980
981 return res;
982}
983
984static int
985jpg_qbuf (struct file *file,
986 int frame,
987 enum zoran_codec_mode mode)
988{
989 struct zoran_fh *fh = file->private_data;
990 struct zoran *zr = fh->zr;
991 int res = 0;
992
993 /* Does the user want to stop streaming? */
994 if (frame < 0) {
995 if (zr->codec_mode == mode) {
996 if (fh->jpg_buffers.active == ZORAN_FREE) {
997 dprintk(1,
998 KERN_ERR
999 "%s: jpg_qbuf(-1) - session not active\n",
1000 ZR_DEVNAME(zr));
1001 return -EINVAL;
1002 }
1003 fh->jpg_buffers.active = zr->jpg_buffers.active =
1004 ZORAN_FREE;
1005 zr->jpg_buffers.allocated = 0;
1006 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1007 return 0;
1008 } else {
1009 dprintk(1,
1010 KERN_ERR
1011 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1012 ZR_DEVNAME(zr));
1013 return -EINVAL;
1014 }
1015 }
1016
1017 if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1018 return res;
1019
1020 /* Start the jpeg codec when the first frame is queued */
1021 if (!res && zr->jpg_que_head == 1)
1022 jpeg_start(zr);
1023
1024 return res;
1025}
1026
1027/*
1028 * Sync on a MJPEG buffer
1029 */
1030
1031static int
1032jpg_sync (struct file *file,
1033 struct zoran_sync *bs)
1034{
1035 struct zoran_fh *fh = file->private_data;
1036 struct zoran *zr = fh->zr;
1037 unsigned long flags;
1038 int frame;
1039
1040 if (fh->jpg_buffers.active == ZORAN_FREE) {
1041 dprintk(1,
1042 KERN_ERR
1043 "%s: jpg_sync() - capture is not currently active\n",
1044 ZR_DEVNAME(zr));
1045 return -EINVAL;
1046 }
1047 if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1048 zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1049 dprintk(1,
1050 KERN_ERR
1051 "%s: jpg_sync() - codec not in streaming mode\n",
1052 ZR_DEVNAME(zr));
1053 return -EINVAL;
1054 }
1055 if (!wait_event_interruptible_timeout(zr->jpg_capq,
1056 (zr->jpg_que_tail != zr->jpg_dma_tail ||
1057 zr->jpg_dma_tail == zr->jpg_dma_head),
1058 10*HZ)) {
1059 int isr;
1060
1061 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1062 udelay(1);
1063 zr->codec->control(zr->codec, CODEC_G_STATUS,
1064 sizeof(isr), &isr);
1065 dprintk(1,
1066 KERN_ERR
1067 "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1068 ZR_DEVNAME(zr), isr);
1069
1070 return -ETIME;
1071
1072 }
1073 if (signal_pending(current))
1074 return -ERESTARTSYS;
1075
1076 spin_lock_irqsave(&zr->spinlock, flags);
1077
1078 if (zr->jpg_dma_tail != zr->jpg_dma_head)
1079 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1080 else
1081 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1082
1083 /* buffer should now be in BUZ_STATE_DONE */
1084 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1085 dprintk(2,
1086 KERN_ERR "%s: jpg_sync() - internal state error\n",
1087 ZR_DEVNAME(zr));
1088
1089 *bs = zr->jpg_buffers.buffer[frame].bs;
1090 bs->frame = frame;
1091 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1092 fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1093
1094 spin_unlock_irqrestore(&zr->spinlock, flags);
1095
1096 return 0;
1097}
1098
1099static void
1100zoran_open_init_session (struct file *file)
1101{
1102 int i;
1103 struct zoran_fh *fh = file->private_data;
1104 struct zoran *zr = fh->zr;
1105
1106 /* Per default, map the V4L Buffers */
1107 fh->map_mode = ZORAN_MAP_MODE_RAW;
1108
1109 /* take over the card's current settings */
1110 fh->overlay_settings = zr->overlay_settings;
1111 fh->overlay_settings.is_set = 0;
1112 fh->overlay_settings.format = zr->overlay_settings.format;
1113 fh->overlay_active = ZORAN_FREE;
1114
1115 /* v4l settings */
1116 fh->v4l_settings = zr->v4l_settings;
1117
1118 /* v4l_buffers */
1119 memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1120 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1121 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1122 fh->v4l_buffers.buffer[i].bs.frame = i;
1123 }
1124 fh->v4l_buffers.allocated = 0;
1125 fh->v4l_buffers.ready_to_be_freed = 0;
1126 fh->v4l_buffers.active = ZORAN_FREE;
1127 fh->v4l_buffers.buffer_size = v4l_bufsize;
1128 fh->v4l_buffers.num_buffers = v4l_nbufs;
1129
1130 /* jpg settings */
1131 fh->jpg_settings = zr->jpg_settings;
1132
1133 /* jpg_buffers */
1134 memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1135 for (i = 0; i < BUZ_MAX_FRAME; i++) {
1136 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1137 fh->jpg_buffers.buffer[i].bs.frame = i;
1138 }
1139 fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1140 fh->jpg_buffers.allocated = 0;
1141 fh->jpg_buffers.ready_to_be_freed = 0;
1142 fh->jpg_buffers.active = ZORAN_FREE;
1143 fh->jpg_buffers.buffer_size = jpg_bufsize;
1144 fh->jpg_buffers.num_buffers = jpg_nbufs;
1145}
1146
1147static void
1148zoran_close_end_session (struct file *file)
1149{
1150 struct zoran_fh *fh = file->private_data;
1151 struct zoran *zr = fh->zr;
1152
1153 /* overlay */
1154 if (fh->overlay_active != ZORAN_FREE) {
1155 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1156 zr->v4l_overlay_active = 0;
1157 if (!zr->v4l_memgrab_active)
1158 zr36057_overlay(zr, 0);
1159 zr->overlay_mask = NULL;
1160 }
1161
1162 /* v4l capture */
1163 if (fh->v4l_buffers.active != ZORAN_FREE) {
1164 unsigned long flags;
1165
1166 spin_lock_irqsave(&zr->spinlock, flags);
1167 zr36057_set_memgrab(zr, 0);
1168 zr->v4l_buffers.allocated = 0;
1169 zr->v4l_buffers.active = fh->v4l_buffers.active =
1170 ZORAN_FREE;
1171 spin_unlock_irqrestore(&zr->spinlock, flags);
1172 }
1173
1174 /* v4l buffers */
1175 if (fh->v4l_buffers.allocated ||
1176 fh->v4l_buffers.ready_to_be_freed) {
1177 v4l_fbuffer_free(file);
1178 }
1179
1180 /* jpg capture */
1181 if (fh->jpg_buffers.active != ZORAN_FREE) {
1182 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1183 zr->jpg_buffers.allocated = 0;
1184 zr->jpg_buffers.active = fh->jpg_buffers.active =
1185 ZORAN_FREE;
1186 }
1187
1188 /* jpg buffers */
1189 if (fh->jpg_buffers.allocated ||
1190 fh->jpg_buffers.ready_to_be_freed) {
1191 jpg_fbuffer_free(file);
1192 }
1193}
1194
1195/*
1196 * Open a zoran card. Right now the flags stuff is just playing
1197 */
1198
1199static int
1200zoran_open (struct inode *inode,
1201 struct file *file)
1202{
1203 unsigned int minor = iminor(inode);
1204 struct zoran *zr = NULL;
1205 struct zoran_fh *fh;
1206 int i, res, first_open = 0, have_module_locks = 0;
1207
1208 lock_kernel();
1209 /* find the device */
1210 for (i = 0; i < zoran_num; i++) {
1211 if (zoran[i]->video_dev->minor == minor) {
1212 zr = zoran[i];
1213 break;
1214 }
1215 }
1216
1217 if (!zr) {
1218 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1219 res = -ENODEV;
1220 goto open_unlock_and_return;
1221 }
1222
1223 /* see fs/device.c - the kernel already locks during open(),
1224 * so locking ourselves only causes deadlocks */
1225 /*mutex_lock(&zr->resource_lock);*/
1226
1227 if (!zr->decoder) {
1228 dprintk(1,
1229 KERN_ERR "%s: no TV decoder loaded for device!\n",
1230 ZR_DEVNAME(zr));
1231 res = -EIO;
1232 goto open_unlock_and_return;
1233 }
1234
1235 /* try to grab a module lock */
1236 if (!try_module_get(THIS_MODULE)) {
1237 dprintk(1,
1238 KERN_ERR
1239 "%s: failed to acquire my own lock! PANIC!\n",
1240 ZR_DEVNAME(zr));
1241 res = -ENODEV;
1242 goto open_unlock_and_return;
1243 }
1244 if (!try_module_get(zr->decoder->driver->driver.owner)) {
1245 dprintk(1,
1246 KERN_ERR
1247 "%s: failed to grab ownership of i2c decoder\n",
1248 ZR_DEVNAME(zr));
1249 res = -EIO;
1250 module_put(THIS_MODULE);
1251 goto open_unlock_and_return;
1252 }
1253 if (zr->encoder &&
1254 !try_module_get(zr->encoder->driver->driver.owner)) {
1255 dprintk(1,
1256 KERN_ERR
1257 "%s: failed to grab ownership of i2c encoder\n",
1258 ZR_DEVNAME(zr));
1259 res = -EIO;
1260 module_put(zr->decoder->driver->driver.owner);
1261 module_put(THIS_MODULE);
1262 goto open_unlock_and_return;
1263 }
1264
1265 have_module_locks = 1;
1266
1267 if (zr->user >= 2048) {
1268 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1269 ZR_DEVNAME(zr), zr->user);
1270 res = -EBUSY;
1271 goto open_unlock_and_return;
1272 }
1273
1274 dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1275 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1276
1277 /* now, create the open()-specific file_ops struct */
1278 fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1279 if (!fh) {
1280 dprintk(1,
1281 KERN_ERR
1282 "%s: zoran_open() - allocation of zoran_fh failed\n",
1283 ZR_DEVNAME(zr));
1284 res = -ENOMEM;
1285 goto open_unlock_and_return;
1286 }
1287 /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1288 * on norm-change! */
1289 fh->overlay_mask =
1290 kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1291 if (!fh->overlay_mask) {
1292 dprintk(1,
1293 KERN_ERR
1294 "%s: zoran_open() - allocation of overlay_mask failed\n",
1295 ZR_DEVNAME(zr));
1296 kfree(fh);
1297 res = -ENOMEM;
1298 goto open_unlock_and_return;
1299 }
1300
1301 if (zr->user++ == 0)
1302 first_open = 1;
1303
1304 /*mutex_unlock(&zr->resource_lock);*/
1305
1306 /* default setup - TODO: look at flags */
1307 if (first_open) { /* First device open */
1308 zr36057_restart(zr);
1309 zoran_open_init_params(zr);
1310 zoran_init_hardware(zr);
1311
1312 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1313 }
1314
1315 /* set file_ops stuff */
1316 file->private_data = fh;
1317 fh->zr = zr;
1318 zoran_open_init_session(file);
1319 unlock_kernel();
1320
1321 return 0;
1322
1323open_unlock_and_return:
1324 /* if we grabbed locks, release them accordingly */
1325 if (have_module_locks) {
1326 module_put(zr->decoder->driver->driver.owner);
1327 if (zr->encoder) {
1328 module_put(zr->encoder->driver->driver.owner);
1329 }
1330 module_put(THIS_MODULE);
1331 }
1332
1333 /* if there's no device found, we didn't obtain the lock either */
1334 if (zr) {
1335 /*mutex_unlock(&zr->resource_lock);*/
1336 }
1337 unlock_kernel();
1338
1339 return res;
1340}
1341
1342static int
1343zoran_close (struct inode *inode,
1344 struct file *file)
1345{
1346 struct zoran_fh *fh = file->private_data;
1347 struct zoran *zr = fh->zr;
1348
1349 dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1350 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1351
1352 /* kernel locks (fs/device.c), so don't do that ourselves
1353 * (prevents deadlocks) */
1354 /*mutex_lock(&zr->resource_lock);*/
1355
1356 zoran_close_end_session(file);
1357
1358 if (zr->user-- == 1) { /* Last process */
1359 /* Clean up JPEG process */
1360 wake_up_interruptible(&zr->jpg_capq);
1361 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1362 zr->jpg_buffers.allocated = 0;
1363 zr->jpg_buffers.active = ZORAN_FREE;
1364
1365 /* disable interrupts */
1366 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1367
1368 if (zr36067_debug > 1)
1369 print_interrupts(zr);
1370
1371 /* Overlay off */
1372 zr->v4l_overlay_active = 0;
1373 zr36057_overlay(zr, 0);
1374 zr->overlay_mask = NULL;
1375
1376 /* capture off */
1377 wake_up_interruptible(&zr->v4l_capq);
1378 zr36057_set_memgrab(zr, 0);
1379 zr->v4l_buffers.allocated = 0;
1380 zr->v4l_buffers.active = ZORAN_FREE;
1381 zoran_set_pci_master(zr, 0);
1382
1383 if (!pass_through) { /* Switch to color bar */
1384 int zero = 0, two = 2;
1385 decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1386 encoder_command(zr, ENCODER_SET_INPUT, &two);
1387 }
1388 }
1389
1390 file->private_data = NULL;
1391 kfree(fh->overlay_mask);
1392 kfree(fh);
1393
1394 /* release locks on the i2c modules */
1395 module_put(zr->decoder->driver->driver.owner);
1396 if (zr->encoder) {
1397 module_put(zr->encoder->driver->driver.owner);
1398 }
1399 module_put(THIS_MODULE);
1400
1401 /*mutex_unlock(&zr->resource_lock);*/
1402
1403 dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1404
1405 return 0;
1406}
1407
1408
1409static ssize_t
1410zoran_read (struct file *file,
1411 char __user *data,
1412 size_t count,
1413 loff_t *ppos)
1414{
1415 /* we simply don't support read() (yet)... */
1416
1417 return -EINVAL;
1418}
1419
1420static ssize_t
1421zoran_write (struct file *file,
1422 const char __user *data,
1423 size_t count,
1424 loff_t *ppos)
1425{
1426 /* ...and the same goes for write() */
1427
1428 return -EINVAL;
1429}
1430
1431static int
1432setup_fbuffer (struct file *file,
1433 void *base,
1434 const struct zoran_format *fmt,
1435 int width,
1436 int height,
1437 int bytesperline)
1438{
1439 struct zoran_fh *fh = file->private_data;
1440 struct zoran *zr = fh->zr;
1441
1442 /* (Ronald) v4l/v4l2 guidelines */
1443 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1444 return -EPERM;
1445
1446 /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1447 ALi Magik (that needs very low latency while the card needs a
1448 higher value always) */
1449
1450 if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1451 return -ENXIO;
1452
1453 /* we need a bytesperline value, even if not given */
1454 if (!bytesperline)
1455 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1456
1457#if 0
1458 if (zr->overlay_active) {
1459 /* dzjee... stupid users... don't even bother to turn off
1460 * overlay before changing the memory location...
1461 * normally, we would return errors here. However, one of
1462 * the tools that does this is... xawtv! and since xawtv
1463 * is used by +/- 99% of the users, we'd rather be user-
1464 * friendly and silently do as if nothing went wrong */
1465 dprintk(3,
1466 KERN_ERR
1467 "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1468 ZR_DEVNAME(zr));
1469 zr36057_overlay(zr, 0);
1470 }
1471#endif
1472
1473 if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1474 dprintk(1,
1475 KERN_ERR
1476 "%s: setup_fbuffer() - no valid overlay format given\n",
1477 ZR_DEVNAME(zr));
1478 return -EINVAL;
1479 }
1480 if (height <= 0 || width <= 0 || bytesperline <= 0) {
1481 dprintk(1,
1482 KERN_ERR
1483 "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1484 ZR_DEVNAME(zr), width, height, bytesperline);
1485 return -EINVAL;
1486 }
1487 if (bytesperline & 3) {
1488 dprintk(1,
1489 KERN_ERR
1490 "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1491 ZR_DEVNAME(zr), bytesperline);
1492 return -EINVAL;
1493 }
1494
1495 zr->buffer.base = (void *) ((unsigned long) base & ~3);
1496 zr->buffer.height = height;
1497 zr->buffer.width = width;
1498 zr->buffer.depth = fmt->depth;
1499 zr->overlay_settings.format = fmt;
1500 zr->buffer.bytesperline = bytesperline;
1501
1502 /* The user should set new window parameters */
1503 zr->overlay_settings.is_set = 0;
1504
1505 return 0;
1506}
1507
1508
1509static int
1510setup_window (struct file *file,
1511 int x,
1512 int y,
1513 int width,
1514 int height,
1515 struct video_clip __user *clips,
1516 int clipcount,
1517 void __user *bitmap)
1518{
1519 struct zoran_fh *fh = file->private_data;
1520 struct zoran *zr = fh->zr;
1521 struct video_clip *vcp = NULL;
1522 int on, end;
1523
1524
1525 if (!zr->buffer.base) {
1526 dprintk(1,
1527 KERN_ERR
1528 "%s: setup_window() - frame buffer has to be set first\n",
1529 ZR_DEVNAME(zr));
1530 return -EINVAL;
1531 }
1532
1533 if (!fh->overlay_settings.format) {
1534 dprintk(1,
1535 KERN_ERR
1536 "%s: setup_window() - no overlay format set\n",
1537 ZR_DEVNAME(zr));
1538 return -EINVAL;
1539 }
1540
1541 /*
1542 * The video front end needs 4-byte alinged line sizes, we correct that
1543 * silently here if necessary
1544 */
1545 if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1546 end = (x + width) & ~1; /* round down */
1547 x = (x + 1) & ~1; /* round up */
1548 width = end - x;
1549 }
1550
1551 if (zr->buffer.depth == 24) {
1552 end = (x + width) & ~3; /* round down */
1553 x = (x + 3) & ~3; /* round up */
1554 width = end - x;
1555 }
1556
1557 if (width > BUZ_MAX_WIDTH)
1558 width = BUZ_MAX_WIDTH;
1559 if (height > BUZ_MAX_HEIGHT)
1560 height = BUZ_MAX_HEIGHT;
1561
1562 /* Check for vaild parameters */
1563 if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1564 width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1565 dprintk(1,
1566 KERN_ERR
1567 "%s: setup_window() - width = %d or height = %d invalid\n",
1568 ZR_DEVNAME(zr), width, height);
1569 return -EINVAL;
1570 }
1571
1572 fh->overlay_settings.x = x;
1573 fh->overlay_settings.y = y;
1574 fh->overlay_settings.width = width;
1575 fh->overlay_settings.height = height;
1576 fh->overlay_settings.clipcount = clipcount;
1577
1578 /*
1579 * If an overlay is running, we have to switch it off
1580 * and switch it on again in order to get the new settings in effect.
1581 *
1582 * We also want to avoid that the overlay mask is written
1583 * when an overlay is running.
1584 */
1585
1586 on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1587 zr->overlay_active != ZORAN_FREE &&
1588 fh->overlay_active != ZORAN_FREE;
1589 if (on)
1590 zr36057_overlay(zr, 0);
1591
1592 /*
1593 * Write the overlay mask if clips are wanted.
1594 * We prefer a bitmap.
1595 */
1596 if (bitmap) {
1597 /* fake value - it just means we want clips */
1598 fh->overlay_settings.clipcount = 1;
1599
1600 if (copy_from_user(fh->overlay_mask, bitmap,
1601 (width * height + 7) / 8)) {
1602 return -EFAULT;
1603 }
1604 } else if (clipcount > 0) {
1605 /* write our own bitmap from the clips */
1606 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1607 if (vcp == NULL) {
1608 dprintk(1,
1609 KERN_ERR
1610 "%s: setup_window() - Alloc of clip mask failed\n",
1611 ZR_DEVNAME(zr));
1612 return -ENOMEM;
1613 }
1614 if (copy_from_user
1615 (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1616 vfree(vcp);
1617 return -EFAULT;
1618 }
1619 write_overlay_mask(file, vcp, clipcount);
1620 vfree(vcp);
1621 }
1622
1623 fh->overlay_settings.is_set = 1;
1624 if (fh->overlay_active != ZORAN_FREE &&
1625 zr->overlay_active != ZORAN_FREE)
1626 zr->overlay_settings = fh->overlay_settings;
1627
1628 if (on)
1629 zr36057_overlay(zr, 1);
1630
1631 /* Make sure the changes come into effect */
1632 return wait_grab_pending(zr);
1633}
1634
1635static int
1636setup_overlay (struct file *file,
1637 int on)
1638{
1639 struct zoran_fh *fh = file->private_data;
1640 struct zoran *zr = fh->zr;
1641
1642 /* If there is nothing to do, return immediatly */
1643 if ((on && fh->overlay_active != ZORAN_FREE) ||
1644 (!on && fh->overlay_active == ZORAN_FREE))
1645 return 0;
1646
1647 /* check whether we're touching someone else's overlay */
1648 if (on && zr->overlay_active != ZORAN_FREE &&
1649 fh->overlay_active == ZORAN_FREE) {
1650 dprintk(1,
1651 KERN_ERR
1652 "%s: setup_overlay() - overlay is already active for another session\n",
1653 ZR_DEVNAME(zr));
1654 return -EBUSY;
1655 }
1656 if (!on && zr->overlay_active != ZORAN_FREE &&
1657 fh->overlay_active == ZORAN_FREE) {
1658 dprintk(1,
1659 KERN_ERR
1660 "%s: setup_overlay() - you cannot cancel someone else's session\n",
1661 ZR_DEVNAME(zr));
1662 return -EPERM;
1663 }
1664
1665 if (on == 0) {
1666 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1667 zr->v4l_overlay_active = 0;
1668 /* When a grab is running, the video simply
1669 * won't be switched on any more */
1670 if (!zr->v4l_memgrab_active)
1671 zr36057_overlay(zr, 0);
1672 zr->overlay_mask = NULL;
1673 } else {
1674 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1675 dprintk(1,
1676 KERN_ERR
1677 "%s: setup_overlay() - buffer or window not set\n",
1678 ZR_DEVNAME(zr));
1679 return -EINVAL;
1680 }
1681 if (!fh->overlay_settings.format) {
1682 dprintk(1,
1683 KERN_ERR
1684 "%s: setup_overlay() - no overlay format set\n",
1685 ZR_DEVNAME(zr));
1686 return -EINVAL;
1687 }
1688 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1689 zr->v4l_overlay_active = 1;
1690 zr->overlay_mask = fh->overlay_mask;
1691 zr->overlay_settings = fh->overlay_settings;
1692 if (!zr->v4l_memgrab_active)
1693 zr36057_overlay(zr, 1);
1694 /* When a grab is running, the video will be
1695 * switched on when grab is finished */
1696 }
1697
1698 /* Make sure the changes come into effect */
1699 return wait_grab_pending(zr);
1700}
1701
1702 /* get the status of a buffer in the clients buffer queue */
1703static int
1704zoran_v4l2_buffer_status (struct file *file,
1705 struct v4l2_buffer *buf,
1706 int num)
1707{
1708 struct zoran_fh *fh = file->private_data;
1709 struct zoran *zr = fh->zr;
1710
1711 buf->flags = V4L2_BUF_FLAG_MAPPED;
1712
1713 switch (fh->map_mode) {
1714 case ZORAN_MAP_MODE_RAW:
1715
1716 /* check range */
1717 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1718 !fh->v4l_buffers.allocated) {
1719 dprintk(1,
1720 KERN_ERR
1721 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1722 ZR_DEVNAME(zr));
1723 return -EINVAL;
1724 }
1725
1726 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1727 buf->length = fh->v4l_buffers.buffer_size;
1728
1729 /* get buffer */
1730 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1731 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1732 fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1733 buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1734 buf->flags |= V4L2_BUF_FLAG_DONE;
1735 buf->timestamp =
1736 fh->v4l_buffers.buffer[num].bs.timestamp;
1737 } else {
1738 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1739 }
1740
1741 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1742 buf->field = V4L2_FIELD_TOP;
1743 else
1744 buf->field = V4L2_FIELD_INTERLACED;
1745
1746 break;
1747
1748 case ZORAN_MAP_MODE_JPG_REC:
1749 case ZORAN_MAP_MODE_JPG_PLAY:
1750
1751 /* check range */
1752 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1753 !fh->jpg_buffers.allocated) {
1754 dprintk(1,
1755 KERN_ERR
1756 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1757 ZR_DEVNAME(zr));
1758 return -EINVAL;
1759 }
1760
1761 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1762 V4L2_BUF_TYPE_VIDEO_CAPTURE :
1763 V4L2_BUF_TYPE_VIDEO_OUTPUT;
1764 buf->length = fh->jpg_buffers.buffer_size;
1765
1766 /* these variables are only written after frame has been captured */
1767 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1768 fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1769 buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1770 buf->timestamp =
1771 fh->jpg_buffers.buffer[num].bs.timestamp;
1772 buf->bytesused =
1773 fh->jpg_buffers.buffer[num].bs.length;
1774 buf->flags |= V4L2_BUF_FLAG_DONE;
1775 } else {
1776 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1777 }
1778
1779 /* which fields are these? */
1780 if (fh->jpg_settings.TmpDcm != 1)
1781 buf->field =
1782 fh->jpg_settings.
1783 odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1784 else
1785 buf->field =
1786 fh->jpg_settings.
1787 odd_even ? V4L2_FIELD_SEQ_TB :
1788 V4L2_FIELD_SEQ_BT;
1789
1790 break;
1791
1792 default:
1793
1794 dprintk(5,
1795 KERN_ERR
1796 "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1797 ZR_DEVNAME(zr), buf->type, fh->map_mode);
1798 return -EINVAL;
1799 }
1800
1801 buf->memory = V4L2_MEMORY_MMAP;
1802 buf->index = num;
1803 buf->m.offset = buf->length * num;
1804
1805 return 0;
1806}
1807
1808static int
1809zoran_set_norm (struct zoran *zr,
1810 int norm) /* VIDEO_MODE_* */
1811{
1812 int norm_encoder, on;
1813
1814 if (zr->v4l_buffers.active != ZORAN_FREE ||
1815 zr->jpg_buffers.active != ZORAN_FREE) {
1816 dprintk(1,
1817 KERN_WARNING
1818 "%s: set_norm() called while in playback/capture mode\n",
1819 ZR_DEVNAME(zr));
1820 return -EBUSY;
1821 }
1822
1823 if (lock_norm && norm != zr->norm) {
1824 if (lock_norm > 1) {
1825 dprintk(1,
1826 KERN_WARNING
1827 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1828 ZR_DEVNAME(zr));
1829 return -EPERM;
1830 } else {
1831 dprintk(1,
1832 KERN_WARNING
1833 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1834 ZR_DEVNAME(zr));
1835 norm = zr->norm;
1836 }
1837 }
1838
1839 if (norm != VIDEO_MODE_AUTO &&
1840 (norm < 0 || norm >= zr->card.norms ||
1841 !zr->card.tvn[norm])) {
1842 dprintk(1,
1843 KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1844 ZR_DEVNAME(zr), norm);
1845 return -EINVAL;
1846 }
1847
1848 if (norm == VIDEO_MODE_AUTO) {
1849 int status;
1850
1851 /* if we have autodetect, ... */
1852 struct video_decoder_capability caps;
1853 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1854 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1855 dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1856 ZR_DEVNAME(zr));
1857 return -EINVAL;
1858 }
1859
1860 decoder_command(zr, DECODER_SET_NORM, &norm);
1861
1862 /* let changes come into effect */
1863 ssleep(2);
1864
1865 decoder_command(zr, DECODER_GET_STATUS, &status);
1866 if (!(status & DECODER_STATUS_GOOD)) {
1867 dprintk(1,
1868 KERN_ERR
1869 "%s: set_norm() - no norm detected\n",
1870 ZR_DEVNAME(zr));
1871 /* reset norm */
1872 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1873 return -EIO;
1874 }
1875
1876 if (status & DECODER_STATUS_NTSC)
1877 norm = VIDEO_MODE_NTSC;
1878 else if (status & DECODER_STATUS_SECAM)
1879 norm = VIDEO_MODE_SECAM;
1880 else
1881 norm = VIDEO_MODE_PAL;
1882 }
1883 zr->timing = zr->card.tvn[norm];
1884 norm_encoder = norm;
1885
1886 /* We switch overlay off and on since a change in the
1887 * norm needs different VFE settings */
1888 on = zr->overlay_active && !zr->v4l_memgrab_active;
1889 if (on)
1890 zr36057_overlay(zr, 0);
1891
1892 decoder_command(zr, DECODER_SET_NORM, &norm);
1893 encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1894
1895 if (on)
1896 zr36057_overlay(zr, 1);
1897
1898 /* Make sure the changes come into effect */
1899 zr->norm = norm;
1900
1901 return 0;
1902}
1903
1904static int
1905zoran_set_input (struct zoran *zr,
1906 int input)
1907{
1908 int realinput;
1909
1910 if (input == zr->input) {
1911 return 0;
1912 }
1913
1914 if (zr->v4l_buffers.active != ZORAN_FREE ||
1915 zr->jpg_buffers.active != ZORAN_FREE) {
1916 dprintk(1,
1917 KERN_WARNING
1918 "%s: set_input() called while in playback/capture mode\n",
1919 ZR_DEVNAME(zr));
1920 return -EBUSY;
1921 }
1922
1923 if (input < 0 || input >= zr->card.inputs) {
1924 dprintk(1,
1925 KERN_ERR
1926 "%s: set_input() - unnsupported input %d\n",
1927 ZR_DEVNAME(zr), input);
1928 return -EINVAL;
1929 }
1930
1931 realinput = zr->card.input[input].muxsel;
1932 zr->input = input;
1933
1934 decoder_command(zr, DECODER_SET_INPUT, &realinput);
1935
1936 return 0;
1937}
1938
1939/*
1940 * ioctl routine
1941 */
1942
1943static int
1944zoran_do_ioctl (struct inode *inode,
1945 struct file *file,
1946 unsigned int cmd,
1947 void *arg)
1948{
1949 struct zoran_fh *fh = file->private_data;
1950 struct zoran *zr = fh->zr;
1951 /* CAREFUL: used in multiple places here */
1952 struct zoran_jpg_settings settings;
1953
1954 /* we might have older buffers lying around... We don't want
1955 * to wait, but we do want to try cleaning them up ASAP. So
1956 * we try to obtain the lock and free them. If that fails, we
1957 * don't do anything and wait for the next turn. In the end,
1958 * zoran_close() or a new allocation will still free them...
1959 * This is just a 'the sooner the better' extra 'feature'
1960 *
1961 * We don't free the buffers right on munmap() because that
1962 * causes oopses (kfree() inside munmap() oopses for no
1963 * apparent reason - it's also not reproduceable in any way,
1964 * but moving the free code outside the munmap() handler fixes
1965 * all this... If someone knows why, please explain me (Ronald)
1966 */
1967 if (mutex_trylock(&zr->resource_lock)) {
1968 /* we obtained it! Let's try to free some things */
1969 if (fh->jpg_buffers.ready_to_be_freed)
1970 jpg_fbuffer_free(file);
1971 if (fh->v4l_buffers.ready_to_be_freed)
1972 v4l_fbuffer_free(file);
1973
1974 mutex_unlock(&zr->resource_lock);
1975 }
1976
1977 switch (cmd) {
1978
1979 case VIDIOCGCAP:
1980 {
1981 struct video_capability *vcap = arg;
1982
1983 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1984
1985 memset(vcap, 0, sizeof(struct video_capability));
1986 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
1987 vcap->type = ZORAN_VID_TYPE;
1988
1989 vcap->channels = zr->card.inputs;
1990 vcap->audios = 0;
1991 mutex_lock(&zr->resource_lock);
1992 vcap->maxwidth = BUZ_MAX_WIDTH;
1993 vcap->maxheight = BUZ_MAX_HEIGHT;
1994 vcap->minwidth = BUZ_MIN_WIDTH;
1995 vcap->minheight = BUZ_MIN_HEIGHT;
1996 mutex_unlock(&zr->resource_lock);
1997
1998 return 0;
1999 }
2000 break;
2001
2002 case VIDIOCGCHAN:
2003 {
2004 struct video_channel *vchan = arg;
2005 int channel = vchan->channel;
2006
2007 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2008 ZR_DEVNAME(zr), vchan->channel);
2009
2010 memset(vchan, 0, sizeof(struct video_channel));
2011 if (channel > zr->card.inputs || channel < 0) {
2012 dprintk(1,
2013 KERN_ERR
2014 "%s: VIDIOCGCHAN on not existing channel %d\n",
2015 ZR_DEVNAME(zr), channel);
2016 return -EINVAL;
2017 }
2018
2019 strcpy(vchan->name, zr->card.input[channel].name);
2020
2021 vchan->tuners = 0;
2022 vchan->flags = 0;
2023 vchan->type = VIDEO_TYPE_CAMERA;
2024 mutex_lock(&zr->resource_lock);
2025 vchan->norm = zr->norm;
2026 mutex_unlock(&zr->resource_lock);
2027 vchan->channel = channel;
2028
2029 return 0;
2030 }
2031 break;
2032
2033 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2034 *
2035 * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2036 * * ^^^^^^^
2037 * * The famos BTTV driver has it implemented with a struct video_channel argument
2038 * * and we follow it for compatibility reasons
2039 * *
2040 * * BTW: this is the only way the user can set the norm!
2041 */
2042
2043 case VIDIOCSCHAN:
2044 {
2045 struct video_channel *vchan = arg;
2046 int res;
2047
2048 dprintk(3,
2049 KERN_DEBUG
2050 "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2051 ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2052
2053 mutex_lock(&zr->resource_lock);
2054 if ((res = zoran_set_input(zr, vchan->channel)))
2055 goto schan_unlock_and_return;
2056 if ((res = zoran_set_norm(zr, vchan->norm)))
2057 goto schan_unlock_and_return;
2058
2059 /* Make sure the changes come into effect */
2060 res = wait_grab_pending(zr);
2061 schan_unlock_and_return:
2062 mutex_unlock(&zr->resource_lock);
2063 return res;
2064 }
2065 break;
2066
2067 case VIDIOCGPICT:
2068 {
2069 struct video_picture *vpict = arg;
2070
2071 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2072
2073 memset(vpict, 0, sizeof(struct video_picture));
2074 mutex_lock(&zr->resource_lock);
2075 vpict->hue = zr->hue;
2076 vpict->brightness = zr->brightness;
2077 vpict->contrast = zr->contrast;
2078 vpict->colour = zr->saturation;
2079 if (fh->overlay_settings.format) {
2080 vpict->depth = fh->overlay_settings.format->depth;
2081 vpict->palette = fh->overlay_settings.format->palette;
2082 } else {
2083 vpict->depth = 0;
2084 }
2085 mutex_unlock(&zr->resource_lock);
2086
2087 return 0;
2088 }
2089 break;
2090
2091 case VIDIOCSPICT:
2092 {
2093 struct video_picture *vpict = arg;
2094 int i;
2095
2096 dprintk(3,
2097 KERN_DEBUG
2098 "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2099 ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2100 vpict->colour, vpict->contrast, vpict->depth,
2101 vpict->palette);
2102
2103 for (i = 0; i < NUM_FORMATS; i++) {
2104 const struct zoran_format *fmt = &zoran_formats[i];
2105
2106 if (fmt->palette != -1 &&
2107 fmt->flags & ZORAN_FORMAT_OVERLAY &&
2108 fmt->palette == vpict->palette &&
2109 fmt->depth == vpict->depth)
2110 break;
2111 }
2112 if (i == NUM_FORMATS) {
2113 dprintk(1,
2114 KERN_ERR
2115 "%s: VIDIOCSPICT - Invalid palette %d\n",
2116 ZR_DEVNAME(zr), vpict->palette);
2117 return -EINVAL;
2118 }
2119
2120 mutex_lock(&zr->resource_lock);
2121
2122 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2123
2124 zr->hue = vpict->hue;
2125 zr->contrast = vpict->contrast;
2126 zr->saturation = vpict->colour;
2127 zr->brightness = vpict->brightness;
2128
2129 fh->overlay_settings.format = &zoran_formats[i];
2130
2131 mutex_unlock(&zr->resource_lock);
2132
2133 return 0;
2134 }
2135 break;
2136
2137 case VIDIOCCAPTURE:
2138 {
2139 int *on = arg, res;
2140
2141 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2142 ZR_DEVNAME(zr), *on);
2143
2144 mutex_lock(&zr->resource_lock);
2145 res = setup_overlay(file, *on);
2146 mutex_unlock(&zr->resource_lock);
2147
2148 return res;
2149 }
2150 break;
2151
2152 case VIDIOCGWIN:
2153 {
2154 struct video_window *vwin = arg;
2155
2156 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2157
2158 memset(vwin, 0, sizeof(struct video_window));
2159 mutex_lock(&zr->resource_lock);
2160 vwin->x = fh->overlay_settings.x;
2161 vwin->y = fh->overlay_settings.y;
2162 vwin->width = fh->overlay_settings.width;
2163 vwin->height = fh->overlay_settings.height;
2164 mutex_unlock(&zr->resource_lock);
2165 vwin->clipcount = 0;
2166 return 0;
2167 }
2168 break;
2169
2170 case VIDIOCSWIN:
2171 {
2172 struct video_window *vwin = arg;
2173 int res;
2174
2175 dprintk(3,
2176 KERN_DEBUG
2177 "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2178 ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2179 vwin->height, vwin->clipcount);
2180
2181 mutex_lock(&zr->resource_lock);
2182 res =
2183 setup_window(file, vwin->x, vwin->y, vwin->width,
2184 vwin->height, vwin->clips,
2185 vwin->clipcount, NULL);
2186 mutex_unlock(&zr->resource_lock);
2187
2188 return res;
2189 }
2190 break;
2191
2192 case VIDIOCGFBUF:
2193 {
2194 struct video_buffer *vbuf = arg;
2195
2196 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2197
2198 mutex_lock(&zr->resource_lock);
2199 *vbuf = zr->buffer;
2200 mutex_unlock(&zr->resource_lock);
2201 return 0;
2202 }
2203 break;
2204
2205 case VIDIOCSFBUF:
2206 {
2207 struct video_buffer *vbuf = arg;
2208 int i, res = 0;
2209
2210 dprintk(3,
2211 KERN_DEBUG
2212 "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2213 ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2214 vbuf->height, vbuf->depth, vbuf->bytesperline);
2215
2216 for (i = 0; i < NUM_FORMATS; i++)
2217 if (zoran_formats[i].depth == vbuf->depth)
2218 break;
2219 if (i == NUM_FORMATS) {
2220 dprintk(1,
2221 KERN_ERR
2222 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2223 ZR_DEVNAME(zr), vbuf->depth);
2224 return -EINVAL;
2225 }
2226
2227 mutex_lock(&zr->resource_lock);
2228 res =
2229 setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2230 vbuf->width, vbuf->height,
2231 vbuf->bytesperline);
2232 mutex_unlock(&zr->resource_lock);
2233
2234 return res;
2235 }
2236 break;
2237
2238 case VIDIOCSYNC:
2239 {
2240 int *frame = arg, res;
2241
2242 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2243 ZR_DEVNAME(zr), *frame);
2244
2245 mutex_lock(&zr->resource_lock);
2246 res = v4l_sync(file, *frame);
2247 mutex_unlock(&zr->resource_lock);
2248 if (!res)
2249 zr->v4l_sync_tail++;
2250 return res;
2251 }
2252 break;
2253
2254 case VIDIOCMCAPTURE:
2255 {
2256 struct video_mmap *vmap = arg;
2257 int res;
2258
2259 dprintk(3,
2260 KERN_DEBUG
2261 "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2262 ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2263 vmap->format);
2264
2265 mutex_lock(&zr->resource_lock);
2266 res = v4l_grab(file, vmap);
2267 mutex_unlock(&zr->resource_lock);
2268 return res;
2269 }
2270 break;
2271
2272 case VIDIOCGMBUF:
2273 {
2274 struct video_mbuf *vmbuf = arg;
2275 int i, res = 0;
2276
2277 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2278
2279 vmbuf->size =
2280 fh->v4l_buffers.num_buffers *
2281 fh->v4l_buffers.buffer_size;
2282 vmbuf->frames = fh->v4l_buffers.num_buffers;
2283 for (i = 0; i < vmbuf->frames; i++) {
2284 vmbuf->offsets[i] =
2285 i * fh->v4l_buffers.buffer_size;
2286 }
2287
2288 mutex_lock(&zr->resource_lock);
2289
2290 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2291 dprintk(1,
2292 KERN_ERR
2293 "%s: VIDIOCGMBUF - buffers already allocated\n",
2294 ZR_DEVNAME(zr));
2295 res = -EINVAL;
2296 goto v4l1reqbuf_unlock_and_return;
2297 }
2298
2299 if (v4l_fbuffer_alloc(file)) {
2300 res = -ENOMEM;
2301 goto v4l1reqbuf_unlock_and_return;
2302 }
2303
2304 /* The next mmap will map the V4L buffers */
2305 fh->map_mode = ZORAN_MAP_MODE_RAW;
2306 v4l1reqbuf_unlock_and_return:
2307 mutex_unlock(&zr->resource_lock);
2308
2309 return res;
2310 }
2311 break;
2312
2313 case VIDIOCGUNIT:
2314 {
2315 struct video_unit *vunit = arg;
2316
2317 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2318
2319 vunit->video = zr->video_dev->minor;
2320 vunit->vbi = VIDEO_NO_UNIT;
2321 vunit->radio = VIDEO_NO_UNIT;
2322 vunit->audio = VIDEO_NO_UNIT;
2323 vunit->teletext = VIDEO_NO_UNIT;
2324
2325 return 0;
2326 }
2327 break;
2328
2329 /*
2330 * RJ: In principal we could support subcaptures for V4L grabbing.
2331 * Not even the famous BTTV driver has them, however.
2332 * If there should be a strong demand, one could consider
2333 * to implement them.
2334 */
2335 case VIDIOCGCAPTURE:
2336 {
2337 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2338 ZR_DEVNAME(zr));
2339 return -EINVAL;
2340 }
2341 break;
2342
2343 case VIDIOCSCAPTURE:
2344 {
2345 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2346 ZR_DEVNAME(zr));
2347 return -EINVAL;
2348 }
2349 break;
2350
2351 case BUZIOC_G_PARAMS:
2352 {
2353 struct zoran_params *bparams = arg;
2354
2355 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2356
2357 memset(bparams, 0, sizeof(struct zoran_params));
2358 bparams->major_version = MAJOR_VERSION;
2359 bparams->minor_version = MINOR_VERSION;
2360
2361 mutex_lock(&zr->resource_lock);
2362
2363 bparams->norm = zr->norm;
2364 bparams->input = zr->input;
2365
2366 bparams->decimation = fh->jpg_settings.decimation;
2367 bparams->HorDcm = fh->jpg_settings.HorDcm;
2368 bparams->VerDcm = fh->jpg_settings.VerDcm;
2369 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2370 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2371 bparams->img_x = fh->jpg_settings.img_x;
2372 bparams->img_y = fh->jpg_settings.img_y;
2373 bparams->img_width = fh->jpg_settings.img_width;
2374 bparams->img_height = fh->jpg_settings.img_height;
2375 bparams->odd_even = fh->jpg_settings.odd_even;
2376
2377 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2378 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2379 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2380 memcpy(bparams->APP_data,
2381 fh->jpg_settings.jpg_comp.APP_data,
2382 sizeof(bparams->APP_data));
2383 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2384 memcpy(bparams->COM_data,
2385 fh->jpg_settings.jpg_comp.COM_data,
2386 sizeof(bparams->COM_data));
2387 bparams->jpeg_markers =
2388 fh->jpg_settings.jpg_comp.jpeg_markers;
2389
2390 mutex_unlock(&zr->resource_lock);
2391
2392 bparams->VFIFO_FB = 0;
2393
2394 return 0;
2395 }
2396 break;
2397
2398 case BUZIOC_S_PARAMS:
2399 {
2400 struct zoran_params *bparams = arg;
2401 int res = 0;
2402
2403 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2404
2405 settings.decimation = bparams->decimation;
2406 settings.HorDcm = bparams->HorDcm;
2407 settings.VerDcm = bparams->VerDcm;
2408 settings.TmpDcm = bparams->TmpDcm;
2409 settings.field_per_buff = bparams->field_per_buff;
2410 settings.img_x = bparams->img_x;
2411 settings.img_y = bparams->img_y;
2412 settings.img_width = bparams->img_width;
2413 settings.img_height = bparams->img_height;
2414 settings.odd_even = bparams->odd_even;
2415
2416 settings.jpg_comp.quality = bparams->quality;
2417 settings.jpg_comp.APPn = bparams->APPn;
2418 settings.jpg_comp.APP_len = bparams->APP_len;
2419 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2420 sizeof(bparams->APP_data));
2421 settings.jpg_comp.COM_len = bparams->COM_len;
2422 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2423 sizeof(bparams->COM_data));
2424 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2425
2426 mutex_lock(&zr->resource_lock);
2427
2428 if (zr->codec_mode != BUZ_MODE_IDLE) {
2429 dprintk(1,
2430 KERN_ERR
2431 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2432 ZR_DEVNAME(zr));
2433 res = -EINVAL;
2434 goto sparams_unlock_and_return;
2435 }
2436
2437 /* Check the params first before overwriting our
2438 * nternal values */
2439 if (zoran_check_jpg_settings(zr, &settings)) {
2440 res = -EINVAL;
2441 goto sparams_unlock_and_return;
2442 }
2443
2444 fh->jpg_settings = settings;
2445 sparams_unlock_and_return:
2446 mutex_unlock(&zr->resource_lock);
2447
2448 return res;
2449 }
2450 break;
2451
2452 case BUZIOC_REQBUFS:
2453 {
2454 struct zoran_requestbuffers *breq = arg;
2455 int res = 0;
2456
2457 dprintk(3,
2458 KERN_DEBUG
2459 "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2460 ZR_DEVNAME(zr), breq->count, breq->size);
2461
2462 /* Enforce reasonable lower and upper limits */
2463 if (breq->count < 4)
2464 breq->count = 4; /* Could be choosen smaller */
2465 if (breq->count > jpg_nbufs)
2466 breq->count = jpg_nbufs;
2467 breq->size = PAGE_ALIGN(breq->size);
2468 if (breq->size < 8192)
2469 breq->size = 8192; /* Arbitrary */
2470 /* breq->size is limited by 1 page for the stat_com
2471 * tables to a Maximum of 2 MB */
2472 if (breq->size > jpg_bufsize)
2473 breq->size = jpg_bufsize;
2474 if (fh->jpg_buffers.need_contiguous &&
2475 breq->size > MAX_KMALLOC_MEM)
2476 breq->size = MAX_KMALLOC_MEM;
2477
2478 mutex_lock(&zr->resource_lock);
2479
2480 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2481 dprintk(1,
2482 KERN_ERR
2483 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2484 ZR_DEVNAME(zr));
2485 res = -EBUSY;
2486 goto jpgreqbuf_unlock_and_return;
2487 }
2488
2489 fh->jpg_buffers.num_buffers = breq->count;
2490 fh->jpg_buffers.buffer_size = breq->size;
2491
2492 if (jpg_fbuffer_alloc(file)) {
2493 res = -ENOMEM;
2494 goto jpgreqbuf_unlock_and_return;
2495 }
2496
2497 /* The next mmap will map the MJPEG buffers - could
2498 * also be *_PLAY, but it doesn't matter here */
2499 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2500 jpgreqbuf_unlock_and_return:
2501 mutex_unlock(&zr->resource_lock);
2502
2503 return res;
2504 }
2505 break;
2506
2507 case BUZIOC_QBUF_CAPT:
2508 {
2509 int *frame = arg, res;
2510
2511 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2512 ZR_DEVNAME(zr), *frame);
2513
2514 mutex_lock(&zr->resource_lock);
2515 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2516 mutex_unlock(&zr->resource_lock);
2517
2518 return res;
2519 }
2520 break;
2521
2522 case BUZIOC_QBUF_PLAY:
2523 {
2524 int *frame = arg, res;
2525
2526 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2527 ZR_DEVNAME(zr), *frame);
2528
2529 mutex_lock(&zr->resource_lock);
2530 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2531 mutex_unlock(&zr->resource_lock);
2532
2533 return res;
2534 }
2535 break;
2536
2537 case BUZIOC_SYNC:
2538 {
2539 struct zoran_sync *bsync = arg;
2540 int res;
2541
2542 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2543
2544 mutex_lock(&zr->resource_lock);
2545 res = jpg_sync(file, bsync);
2546 mutex_unlock(&zr->resource_lock);
2547
2548 return res;
2549 }
2550 break;
2551
2552 case BUZIOC_G_STATUS:
2553 {
2554 struct zoran_status *bstat = arg;
2555 int norm, input, status, res = 0;
2556
2557 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2558
2559 if (zr->codec_mode != BUZ_MODE_IDLE) {
2560 dprintk(1,
2561 KERN_ERR
2562 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2563 ZR_DEVNAME(zr));
2564 return -EINVAL;
2565 }
2566
2567 input = zr->card.input[bstat->input].muxsel;
2568 norm = VIDEO_MODE_AUTO;
2569
2570 mutex_lock(&zr->resource_lock);
2571
2572 if (zr->codec_mode != BUZ_MODE_IDLE) {
2573 dprintk(1,
2574 KERN_ERR
2575 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2576 ZR_DEVNAME(zr));
2577 res = -EINVAL;
2578 goto gstat_unlock_and_return;
2579 }
2580
2581 decoder_command(zr, DECODER_SET_INPUT, &input);
2582 decoder_command(zr, DECODER_SET_NORM, &norm);
2583
2584 /* sleep 1 second */
2585 ssleep(1);
2586
2587 /* Get status of video decoder */
2588 decoder_command(zr, DECODER_GET_STATUS, &status);
2589
2590 /* restore previous input and norm */
2591 input = zr->card.input[zr->input].muxsel;
2592 decoder_command(zr, DECODER_SET_INPUT, &input);
2593 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2594 gstat_unlock_and_return:
2595 mutex_unlock(&zr->resource_lock);
2596
2597 if (!res) {
2598 bstat->signal =
2599 (status & DECODER_STATUS_GOOD) ? 1 : 0;
2600 if (status & DECODER_STATUS_NTSC)
2601 bstat->norm = VIDEO_MODE_NTSC;
2602 else if (status & DECODER_STATUS_SECAM)
2603 bstat->norm = VIDEO_MODE_SECAM;
2604 else
2605 bstat->norm = VIDEO_MODE_PAL;
2606
2607 bstat->color =
2608 (status & DECODER_STATUS_COLOR) ? 1 : 0;
2609 }
2610
2611 return res;
2612 }
2613 break;
2614
2615 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2616 * it allows for integrating the JPEG capturing calls inside standard v4l2
2617 */
2618
2619 case VIDIOC_QUERYCAP:
2620 {
2621 struct v4l2_capability *cap = arg;
2622
2623 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2624
2625 memset(cap, 0, sizeof(*cap));
2626 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2627 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2628 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2629 pci_name(zr->pci_dev));
2630 cap->version =
2631 KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2632 RELEASE_VERSION);
2633 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2634
2635 return 0;
2636 }
2637 break;
2638
2639 case VIDIOC_ENUM_FMT:
2640 {
2641 struct v4l2_fmtdesc *fmt = arg;
2642 int index = fmt->index, num = -1, i, flag = 0, type =
2643 fmt->type;
2644
2645 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2646 ZR_DEVNAME(zr), fmt->index);
2647
2648 switch (fmt->type) {
2649 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2650 flag = ZORAN_FORMAT_CAPTURE;
2651 break;
2652 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2653 flag = ZORAN_FORMAT_PLAYBACK;
2654 break;
2655 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2656 flag = ZORAN_FORMAT_OVERLAY;
2657 break;
2658 default:
2659 dprintk(1,
2660 KERN_ERR
2661 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2662 ZR_DEVNAME(zr), fmt->type);
2663 return -EINVAL;
2664 }
2665
2666 for (i = 0; i < NUM_FORMATS; i++) {
2667 if (zoran_formats[i].flags & flag)
2668 num++;
2669 if (num == fmt->index)
2670 break;
2671 }
2672 if (fmt->index < 0 /* late, but not too late */ ||
2673 i == NUM_FORMATS)
2674 return -EINVAL;
2675
2676 memset(fmt, 0, sizeof(*fmt));
2677 fmt->index = index;
2678 fmt->type = type;
2679 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2680 fmt->pixelformat = zoran_formats[i].fourcc;
2681 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2682 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2683
2684 return 0;
2685 }
2686 break;
2687
2688 case VIDIOC_G_FMT:
2689 {
2690 struct v4l2_format *fmt = arg;
2691 int type = fmt->type;
2692
2693 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2694
2695 memset(fmt, 0, sizeof(*fmt));
2696 fmt->type = type;
2697
2698 switch (fmt->type) {
2699 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2700
2701 mutex_lock(&zr->resource_lock);
2702
2703 fmt->fmt.win.w.left = fh->overlay_settings.x;
2704 fmt->fmt.win.w.top = fh->overlay_settings.y;
2705 fmt->fmt.win.w.width = fh->overlay_settings.width;
2706 fmt->fmt.win.w.height =
2707 fh->overlay_settings.height;
2708 if (fh->overlay_settings.width * 2 >
2709 BUZ_MAX_HEIGHT)
2710 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2711 else
2712 fmt->fmt.win.field = V4L2_FIELD_TOP;
2713
2714 mutex_unlock(&zr->resource_lock);
2715
2716 break;
2717
2718 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2719 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2720
2721 mutex_lock(&zr->resource_lock);
2722
2723 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2724 fh->map_mode == ZORAN_MAP_MODE_RAW) {
2725
2726 fmt->fmt.pix.width =
2727 fh->v4l_settings.width;
2728 fmt->fmt.pix.height =
2729 fh->v4l_settings.height;
2730 fmt->fmt.pix.sizeimage =
2731 fh->v4l_settings.bytesperline *
2732 fh->v4l_settings.height;
2733 fmt->fmt.pix.pixelformat =
2734 fh->v4l_settings.format->fourcc;
2735 fmt->fmt.pix.colorspace =
2736 fh->v4l_settings.format->colorspace;
2737 fmt->fmt.pix.bytesperline =
2738 fh->v4l_settings.bytesperline;
2739 if (BUZ_MAX_HEIGHT <
2740 (fh->v4l_settings.height * 2))
2741 fmt->fmt.pix.field =
2742 V4L2_FIELD_INTERLACED;
2743 else
2744 fmt->fmt.pix.field =
2745 V4L2_FIELD_TOP;
2746
2747 } else {
2748
2749 fmt->fmt.pix.width =
2750 fh->jpg_settings.img_width /
2751 fh->jpg_settings.HorDcm;
2752 fmt->fmt.pix.height =
2753 fh->jpg_settings.img_height /
2754 (fh->jpg_settings.VerDcm *
2755 fh->jpg_settings.TmpDcm);
2756 fmt->fmt.pix.sizeimage =
2757 zoran_v4l2_calc_bufsize(&fh->
2758 jpg_settings);
2759 fmt->fmt.pix.pixelformat =
2760 V4L2_PIX_FMT_MJPEG;
2761 if (fh->jpg_settings.TmpDcm == 1)
2762 fmt->fmt.pix.field =
2763 (fh->jpg_settings.
2764 odd_even ? V4L2_FIELD_SEQ_BT :
2765 V4L2_FIELD_SEQ_BT);
2766 else
2767 fmt->fmt.pix.field =
2768 (fh->jpg_settings.
2769 odd_even ? V4L2_FIELD_TOP :
2770 V4L2_FIELD_BOTTOM);
2771
2772 fmt->fmt.pix.bytesperline = 0;
2773 fmt->fmt.pix.colorspace =
2774 V4L2_COLORSPACE_SMPTE170M;
2775 }
2776
2777 mutex_unlock(&zr->resource_lock);
2778
2779 break;
2780
2781 default:
2782 dprintk(1,
2783 KERN_ERR
2784 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2785 ZR_DEVNAME(zr), fmt->type);
2786 return -EINVAL;
2787 }
2788 return 0;
2789 }
2790 break;
2791
2792 case VIDIOC_S_FMT:
2793 {
2794 struct v4l2_format *fmt = arg;
2795 int i, res = 0;
2796 __le32 printformat;
2797
2798 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2799 ZR_DEVNAME(zr), fmt->type);
2800
2801 switch (fmt->type) {
2802 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2803
2804 dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2805 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2806 fmt->fmt.win.w.width,
2807 fmt->fmt.win.w.height,
2808 fmt->fmt.win.clipcount,
2809 fmt->fmt.win.bitmap);
2810 mutex_lock(&zr->resource_lock);
2811 res =
2812 setup_window(file, fmt->fmt.win.w.left,
2813 fmt->fmt.win.w.top,
2814 fmt->fmt.win.w.width,
2815 fmt->fmt.win.w.height,
2816 (struct video_clip __user *)
2817 fmt->fmt.win.clips,
2818 fmt->fmt.win.clipcount,
2819 fmt->fmt.win.bitmap);
2820 mutex_unlock(&zr->resource_lock);
2821 return res;
2822 break;
2823
2824 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2825 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2826
2827 printformat =
2828 __cpu_to_le32(fmt->fmt.pix.pixelformat);
2829 dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2830 fmt->fmt.pix.width, fmt->fmt.pix.height,
2831 fmt->fmt.pix.pixelformat,
2832 (char *) &printformat);
2833
2834 /* we can be requested to do JPEG/raw playback/capture */
2835 if (!
2836 (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2837 (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2838 fmt->fmt.pix.pixelformat ==
2839 V4L2_PIX_FMT_MJPEG))) {
2840 dprintk(1,
2841 KERN_ERR
2842 "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2843 ZR_DEVNAME(zr), fmt->type,
2844 fmt->fmt.pix.pixelformat,
2845 (char *) &printformat);
2846 return -EINVAL;
2847 }
2848
2849 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2850 mutex_lock(&zr->resource_lock);
2851
2852 settings = fh->jpg_settings;
2853
2854 if (fh->v4l_buffers.allocated ||
2855 fh->jpg_buffers.allocated) {
2856 dprintk(1,
2857 KERN_ERR
2858 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2859 ZR_DEVNAME(zr));
2860 res = -EBUSY;
2861 goto sfmtjpg_unlock_and_return;
2862 }
2863
2864 /* we actually need to set 'real' parameters now */
2865 if ((fmt->fmt.pix.height * 2) >
2866 BUZ_MAX_HEIGHT)
2867 settings.TmpDcm = 1;
2868 else
2869 settings.TmpDcm = 2;
2870 settings.decimation = 0;
2871 if (fmt->fmt.pix.height <=
2872 fh->jpg_settings.img_height / 2)
2873 settings.VerDcm = 2;
2874 else
2875 settings.VerDcm = 1;
2876 if (fmt->fmt.pix.width <=
2877 fh->jpg_settings.img_width / 4)
2878 settings.HorDcm = 4;
2879 else if (fmt->fmt.pix.width <=
2880 fh->jpg_settings.img_width / 2)
2881 settings.HorDcm = 2;
2882 else
2883 settings.HorDcm = 1;
2884 if (settings.TmpDcm == 1)
2885 settings.field_per_buff = 2;
2886 else
2887 settings.field_per_buff = 1;
2888
2889 /* check */
2890 if ((res =
2891 zoran_check_jpg_settings(zr,
2892 &settings)))
2893 goto sfmtjpg_unlock_and_return;
2894
2895 /* it's ok, so set them */
2896 fh->jpg_settings = settings;
2897
2898 /* tell the user what we actually did */
2899 fmt->fmt.pix.width =
2900 settings.img_width / settings.HorDcm;
2901 fmt->fmt.pix.height =
2902 settings.img_height * 2 /
2903 (settings.TmpDcm * settings.VerDcm);
2904 if (settings.TmpDcm == 1)
2905 fmt->fmt.pix.field =
2906 (fh->jpg_settings.
2907 odd_even ? V4L2_FIELD_SEQ_TB :
2908 V4L2_FIELD_SEQ_BT);
2909 else
2910 fmt->fmt.pix.field =
2911 (fh->jpg_settings.
2912 odd_even ? V4L2_FIELD_TOP :
2913 V4L2_FIELD_BOTTOM);
2914 fh->jpg_buffers.buffer_size =
2915 zoran_v4l2_calc_bufsize(&fh->
2916 jpg_settings);
2917 fmt->fmt.pix.bytesperline = 0;
2918 fmt->fmt.pix.sizeimage =
2919 fh->jpg_buffers.buffer_size;
2920 fmt->fmt.pix.colorspace =
2921 V4L2_COLORSPACE_SMPTE170M;
2922
2923 /* we hereby abuse this variable to show that
2924 * we're gonna do mjpeg capture */
2925 fh->map_mode =
2926 (fmt->type ==
2927 V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2928 ZORAN_MAP_MODE_JPG_REC :
2929 ZORAN_MAP_MODE_JPG_PLAY;
2930 sfmtjpg_unlock_and_return:
2931 mutex_unlock(&zr->resource_lock);
2932 } else {
2933 for (i = 0; i < NUM_FORMATS; i++)
2934 if (fmt->fmt.pix.pixelformat ==
2935 zoran_formats[i].fourcc)
2936 break;
2937 if (i == NUM_FORMATS) {
2938 dprintk(1,
2939 KERN_ERR
2940 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2941 ZR_DEVNAME(zr),
2942 fmt->fmt.pix.pixelformat,
2943 (char *) &printformat);
2944 return -EINVAL;
2945 }
2946 mutex_lock(&zr->resource_lock);
2947 if (fh->jpg_buffers.allocated ||
2948 (fh->v4l_buffers.allocated &&
2949 fh->v4l_buffers.active !=
2950 ZORAN_FREE)) {
2951 dprintk(1,
2952 KERN_ERR
2953 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2954 ZR_DEVNAME(zr));
2955 res = -EBUSY;
2956 goto sfmtv4l_unlock_and_return;
2957 }
2958 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2959 fmt->fmt.pix.height =
2960 BUZ_MAX_HEIGHT;
2961 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2962 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2963
2964 if ((res =
2965 zoran_v4l_set_format(file,
2966 fmt->fmt.pix.
2967 width,
2968 fmt->fmt.pix.
2969 height,
2970 &zoran_formats
2971 [i])))
2972 goto sfmtv4l_unlock_and_return;
2973
2974 /* tell the user the
2975 * results/missing stuff */
2976 fmt->fmt.pix.bytesperline =
2977 fh->v4l_settings.bytesperline;
2978 fmt->fmt.pix.sizeimage =
2979 fh->v4l_settings.height *
2980 fh->v4l_settings.bytesperline;
2981 fmt->fmt.pix.colorspace =
2982 fh->v4l_settings.format->colorspace;
2983 if (BUZ_MAX_HEIGHT <
2984 (fh->v4l_settings.height * 2))
2985 fmt->fmt.pix.field =
2986 V4L2_FIELD_INTERLACED;
2987 else
2988 fmt->fmt.pix.field =
2989 V4L2_FIELD_TOP;
2990
2991 fh->map_mode = ZORAN_MAP_MODE_RAW;
2992 sfmtv4l_unlock_and_return:
2993 mutex_unlock(&zr->resource_lock);
2994 }
2995
2996 break;
2997
2998 default:
2999 dprintk(1,
3000 KERN_ERR
3001 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3002 ZR_DEVNAME(zr), fmt->type);
3003 return -EINVAL;
3004 }
3005
3006 return res;
3007 }
3008 break;
3009
3010 case VIDIOC_G_FBUF:
3011 {
3012 struct v4l2_framebuffer *fb = arg;
3013
3014 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3015
3016 memset(fb, 0, sizeof(*fb));
3017 mutex_lock(&zr->resource_lock);
3018 fb->base = zr->buffer.base;
3019 fb->fmt.width = zr->buffer.width;
3020 fb->fmt.height = zr->buffer.height;
3021 if (zr->overlay_settings.format) {
3022 fb->fmt.pixelformat =
3023 fh->overlay_settings.format->fourcc;
3024 }
3025 fb->fmt.bytesperline = zr->buffer.bytesperline;
3026 mutex_unlock(&zr->resource_lock);
3027 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3028 fb->fmt.field = V4L2_FIELD_INTERLACED;
3029 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3030 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3031
3032 return 0;
3033 }
3034 break;
3035
3036 case VIDIOC_S_FBUF:
3037 {
3038 int i, res = 0;
3039 struct v4l2_framebuffer *fb = arg;
3040 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3041
3042 dprintk(3,
3043 KERN_DEBUG
3044 "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3045 ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3046 fb->fmt.bytesperline, fb->fmt.pixelformat,
3047 (char *) &printformat);
3048
3049 for (i = 0; i < NUM_FORMATS; i++)
3050 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3051 break;
3052 if (i == NUM_FORMATS) {
3053 dprintk(1,
3054 KERN_ERR
3055 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3056 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3057 (char *) &printformat);
3058 return -EINVAL;
3059 }
3060
3061 mutex_lock(&zr->resource_lock);
3062 res =
3063 setup_fbuffer(file, fb->base, &zoran_formats[i],
3064 fb->fmt.width, fb->fmt.height,
3065 fb->fmt.bytesperline);
3066 mutex_unlock(&zr->resource_lock);
3067
3068 return res;
3069 }
3070 break;
3071
3072 case VIDIOC_OVERLAY:
3073 {
3074 int *on = arg, res;
3075
3076 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3077 ZR_DEVNAME(zr), *on);
3078
3079 mutex_lock(&zr->resource_lock);
3080 res = setup_overlay(file, *on);
3081 mutex_unlock(&zr->resource_lock);
3082
3083 return res;
3084 }
3085 break;
3086
3087 case VIDIOC_REQBUFS:
3088 {
3089 struct v4l2_requestbuffers *req = arg;
3090 int res = 0;
3091
3092 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3093 ZR_DEVNAME(zr), req->type);
3094
3095 if (req->memory != V4L2_MEMORY_MMAP) {
3096 dprintk(1,
3097 KERN_ERR
3098 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3099 ZR_DEVNAME(zr), req->memory);
3100 return -EINVAL;
3101 }
3102
3103 mutex_lock(&zr->resource_lock);
3104
3105 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3106 dprintk(1,
3107 KERN_ERR
3108 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3109 ZR_DEVNAME(zr));
3110 res = -EBUSY;
3111 goto v4l2reqbuf_unlock_and_return;
3112 }
3113
3114 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3115 req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3116
3117 /* control user input */
3118 if (req->count < 2)
3119 req->count = 2;
3120 if (req->count > v4l_nbufs)
3121 req->count = v4l_nbufs;
3122 fh->v4l_buffers.num_buffers = req->count;
3123
3124 if (v4l_fbuffer_alloc(file)) {
3125 res = -ENOMEM;
3126 goto v4l2reqbuf_unlock_and_return;
3127 }
3128
3129 /* The next mmap will map the V4L buffers */
3130 fh->map_mode = ZORAN_MAP_MODE_RAW;
3131
3132 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3133 fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3134
3135 /* we need to calculate size ourselves now */
3136 if (req->count < 4)
3137 req->count = 4;
3138 if (req->count > jpg_nbufs)
3139 req->count = jpg_nbufs;
3140 fh->jpg_buffers.num_buffers = req->count;
3141 fh->jpg_buffers.buffer_size =
3142 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3143
3144 if (jpg_fbuffer_alloc(file)) {
3145 res = -ENOMEM;
3146 goto v4l2reqbuf_unlock_and_return;
3147 }
3148
3149 /* The next mmap will map the MJPEG buffers */
3150 if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3151 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3152 else
3153 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3154
3155 } else {
3156 dprintk(1,
3157 KERN_ERR
3158 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3159 ZR_DEVNAME(zr), req->type);
3160 res = -EINVAL;
3161 goto v4l2reqbuf_unlock_and_return;
3162 }
3163 v4l2reqbuf_unlock_and_return:
3164 mutex_unlock(&zr->resource_lock);
3165
3166 return 0;
3167 }
3168 break;
3169
3170 case VIDIOC_QUERYBUF:
3171 {
3172 struct v4l2_buffer *buf = arg;
3173 __u32 type = buf->type;
3174 int index = buf->index, res;
3175
3176 dprintk(3,
3177 KERN_DEBUG
3178 "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3179 ZR_DEVNAME(zr), buf->index, buf->type);
3180
3181 memset(buf, 0, sizeof(*buf));
3182 buf->type = type;
3183 buf->index = index;
3184
3185 mutex_lock(&zr->resource_lock);
3186 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3187 mutex_unlock(&zr->resource_lock);
3188
3189 return res;
3190 }
3191 break;
3192
3193 case VIDIOC_QBUF:
3194 {
3195 struct v4l2_buffer *buf = arg;
3196 int res = 0, codec_mode, buf_type;
3197
3198 dprintk(3,
3199 KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3200 ZR_DEVNAME(zr), buf->type, buf->index);
3201
3202 mutex_lock(&zr->resource_lock);
3203
3204 switch (fh->map_mode) {
3205 case ZORAN_MAP_MODE_RAW:
3206 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3207 dprintk(1,
3208 KERN_ERR
3209 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3210 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3211 res = -EINVAL;
3212 goto qbuf_unlock_and_return;
3213 }
3214
3215 res = zoran_v4l_queue_frame(file, buf->index);
3216 if (res)
3217 goto qbuf_unlock_and_return;
3218 if (!zr->v4l_memgrab_active &&
3219 fh->v4l_buffers.active == ZORAN_LOCKED)
3220 zr36057_set_memgrab(zr, 1);
3221 break;
3222
3223 case ZORAN_MAP_MODE_JPG_REC:
3224 case ZORAN_MAP_MODE_JPG_PLAY:
3225 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3226 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3227 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3228 } else {
3229 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3230 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3231 }
3232
3233 if (buf->type != buf_type) {
3234 dprintk(1,
3235 KERN_ERR
3236 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3237 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3238 res = -EINVAL;
3239 goto qbuf_unlock_and_return;
3240 }
3241
3242 res =
3243 zoran_jpg_queue_frame(file, buf->index,
3244 codec_mode);
3245 if (res != 0)
3246 goto qbuf_unlock_and_return;
3247 if (zr->codec_mode == BUZ_MODE_IDLE &&
3248 fh->jpg_buffers.active == ZORAN_LOCKED) {
3249 zr36057_enable_jpg(zr, codec_mode);
3250 }
3251 break;
3252
3253 default:
3254 dprintk(1,
3255 KERN_ERR
3256 "%s: VIDIOC_QBUF - unsupported type %d\n",
3257 ZR_DEVNAME(zr), buf->type);
3258 res = -EINVAL;
3259 goto qbuf_unlock_and_return;
3260 }
3261 qbuf_unlock_and_return:
3262 mutex_unlock(&zr->resource_lock);
3263
3264 return res;
3265 }
3266 break;
3267
3268 case VIDIOC_DQBUF:
3269 {
3270 struct v4l2_buffer *buf = arg;
3271 int res = 0, buf_type, num = -1; /* compiler borks here (?) */
3272
3273 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3274 ZR_DEVNAME(zr), buf->type);
3275
3276 mutex_lock(&zr->resource_lock);
3277
3278 switch (fh->map_mode) {
3279 case ZORAN_MAP_MODE_RAW:
3280 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3281 dprintk(1,
3282 KERN_ERR
3283 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3284 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3285 res = -EINVAL;
3286 goto dqbuf_unlock_and_return;
3287 }
3288
3289 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3290 if (file->f_flags & O_NONBLOCK &&
3291 zr->v4l_buffers.buffer[num].state !=
3292 BUZ_STATE_DONE) {
3293 res = -EAGAIN;
3294 goto dqbuf_unlock_and_return;
3295 }
3296 res = v4l_sync(file, num);
3297 if (res)
3298 goto dqbuf_unlock_and_return;
3299 else
3300 zr->v4l_sync_tail++;
3301 res = zoran_v4l2_buffer_status(file, buf, num);
3302 break;
3303
3304 case ZORAN_MAP_MODE_JPG_REC:
3305 case ZORAN_MAP_MODE_JPG_PLAY:
3306 {
3307 struct zoran_sync bs;
3308
3309 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3310 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3311 else
3312 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3313
3314 if (buf->type != buf_type) {
3315 dprintk(1,
3316 KERN_ERR
3317 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3318 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3319 res = -EINVAL;
3320 goto dqbuf_unlock_and_return;
3321 }
3322
3323 num =
3324 zr->jpg_pend[zr->
3325 jpg_que_tail & BUZ_MASK_FRAME];
3326
3327 if (file->f_flags & O_NONBLOCK &&
3328 zr->jpg_buffers.buffer[num].state !=
3329 BUZ_STATE_DONE) {
3330 res = -EAGAIN;
3331 goto dqbuf_unlock_and_return;
3332 }
3333 res = jpg_sync(file, &bs);
3334 if (res)
3335 goto dqbuf_unlock_and_return;
3336 res =
3337 zoran_v4l2_buffer_status(file, buf, bs.frame);
3338 break;
3339 }
3340
3341 default:
3342 dprintk(1,
3343 KERN_ERR
3344 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3345 ZR_DEVNAME(zr), buf->type);
3346 res = -EINVAL;
3347 goto dqbuf_unlock_and_return;
3348 }
3349 dqbuf_unlock_and_return:
3350 mutex_unlock(&zr->resource_lock);
3351
3352 return res;
3353 }
3354 break;
3355
3356 case VIDIOC_STREAMON:
3357 {
3358 int res = 0;
3359
3360 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3361
3362 mutex_lock(&zr->resource_lock);
3363
3364 switch (fh->map_mode) {
3365 case ZORAN_MAP_MODE_RAW: /* raw capture */
3366 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3367 fh->v4l_buffers.active != ZORAN_ACTIVE) {
3368 res = -EBUSY;
3369 goto strmon_unlock_and_return;
3370 }
3371
3372 zr->v4l_buffers.active = fh->v4l_buffers.active =
3373 ZORAN_LOCKED;
3374 zr->v4l_settings = fh->v4l_settings;
3375
3376 zr->v4l_sync_tail = zr->v4l_pend_tail;
3377 if (!zr->v4l_memgrab_active &&
3378 zr->v4l_pend_head != zr->v4l_pend_tail) {
3379 zr36057_set_memgrab(zr, 1);
3380 }
3381 break;
3382
3383 case ZORAN_MAP_MODE_JPG_REC:
3384 case ZORAN_MAP_MODE_JPG_PLAY:
3385 /* what is the codec mode right now? */
3386 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3387 fh->jpg_buffers.active != ZORAN_ACTIVE) {
3388 res = -EBUSY;
3389 goto strmon_unlock_and_return;
3390 }
3391
3392 zr->jpg_buffers.active = fh->jpg_buffers.active =
3393 ZORAN_LOCKED;
3394
3395 if (zr->jpg_que_head != zr->jpg_que_tail) {
3396 /* Start the jpeg codec when the first frame is queued */
3397 jpeg_start(zr);
3398 }
3399
3400 break;
3401 default:
3402 dprintk(1,
3403 KERN_ERR
3404 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3405 ZR_DEVNAME(zr), fh->map_mode);
3406 res = -EINVAL;
3407 goto strmon_unlock_and_return;
3408 }
3409 strmon_unlock_and_return:
3410 mutex_unlock(&zr->resource_lock);
3411
3412 return res;
3413 }
3414 break;
3415
3416 case VIDIOC_STREAMOFF:
3417 {
3418 int i, res = 0;
3419
3420 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3421
3422 mutex_lock(&zr->resource_lock);
3423
3424 switch (fh->map_mode) {
3425 case ZORAN_MAP_MODE_RAW: /* raw capture */
3426 if (fh->v4l_buffers.active == ZORAN_FREE &&
3427 zr->v4l_buffers.active != ZORAN_FREE) {
3428 res = -EPERM; /* stay off other's settings! */
3429 goto strmoff_unlock_and_return;
3430 }
3431 if (zr->v4l_buffers.active == ZORAN_FREE)
3432 goto strmoff_unlock_and_return;
3433
3434 /* unload capture */
3435 if (zr->v4l_memgrab_active) {
3436 unsigned long flags;
3437
3438 spin_lock_irqsave(&zr->spinlock, flags);
3439 zr36057_set_memgrab(zr, 0);
3440 spin_unlock_irqrestore(&zr->spinlock, flags);
3441 }
3442
3443 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3444 zr->v4l_buffers.buffer[i].state =
3445 BUZ_STATE_USER;
3446 fh->v4l_buffers = zr->v4l_buffers;
3447
3448 zr->v4l_buffers.active = fh->v4l_buffers.active =
3449 ZORAN_FREE;
3450
3451 zr->v4l_grab_seq = 0;
3452 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3453 zr->v4l_sync_tail = 0;
3454
3455 break;
3456
3457 case ZORAN_MAP_MODE_JPG_REC:
3458 case ZORAN_MAP_MODE_JPG_PLAY:
3459 if (fh->jpg_buffers.active == ZORAN_FREE &&
3460 zr->jpg_buffers.active != ZORAN_FREE) {
3461 res = -EPERM; /* stay off other's settings! */
3462 goto strmoff_unlock_and_return;
3463 }
3464 if (zr->jpg_buffers.active == ZORAN_FREE)
3465 goto strmoff_unlock_and_return;
3466
3467 res =
3468 jpg_qbuf(file, -1,
3469 (fh->map_mode ==
3470 ZORAN_MAP_MODE_JPG_REC) ?
3471 BUZ_MODE_MOTION_COMPRESS :
3472 BUZ_MODE_MOTION_DECOMPRESS);
3473 if (res)
3474 goto strmoff_unlock_and_return;
3475 break;
3476 default:
3477 dprintk(1,
3478 KERN_ERR
3479 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3480 ZR_DEVNAME(zr), fh->map_mode);
3481 res = -EINVAL;
3482 goto strmoff_unlock_and_return;
3483 }
3484 strmoff_unlock_and_return:
3485 mutex_unlock(&zr->resource_lock);
3486
3487 return res;
3488 }
3489 break;
3490
3491 case VIDIOC_QUERYCTRL:
3492 {
3493 struct v4l2_queryctrl *ctrl = arg;
3494
3495 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3496 ZR_DEVNAME(zr), ctrl->id);
3497
3498 /* we only support hue/saturation/contrast/brightness */
3499 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3500 ctrl->id > V4L2_CID_HUE)
3501 return -EINVAL;
3502 else {
3503 int id = ctrl->id;
3504 memset(ctrl, 0, sizeof(*ctrl));
3505 ctrl->id = id;
3506 }
3507
3508 switch (ctrl->id) {
3509 case V4L2_CID_BRIGHTNESS:
3510 strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3511 break;
3512 case V4L2_CID_CONTRAST:
3513 strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3514 break;
3515 case V4L2_CID_SATURATION:
3516 strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3517 break;
3518 case V4L2_CID_HUE:
3519 strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3520 break;
3521 }
3522
3523 ctrl->minimum = 0;
3524 ctrl->maximum = 65535;
3525 ctrl->step = 1;
3526 ctrl->default_value = 32768;
3527 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3528
3529 return 0;
3530 }
3531 break;
3532
3533 case VIDIOC_G_CTRL:
3534 {
3535 struct v4l2_control *ctrl = arg;
3536
3537 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3538 ZR_DEVNAME(zr), ctrl->id);
3539
3540 /* we only support hue/saturation/contrast/brightness */
3541 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3542 ctrl->id > V4L2_CID_HUE)
3543 return -EINVAL;
3544
3545 mutex_lock(&zr->resource_lock);
3546 switch (ctrl->id) {
3547 case V4L2_CID_BRIGHTNESS:
3548 ctrl->value = zr->brightness;
3549 break;
3550 case V4L2_CID_CONTRAST:
3551 ctrl->value = zr->contrast;
3552 break;
3553 case V4L2_CID_SATURATION:
3554 ctrl->value = zr->saturation;
3555 break;
3556 case V4L2_CID_HUE:
3557 ctrl->value = zr->hue;
3558 break;
3559 }
3560 mutex_unlock(&zr->resource_lock);
3561
3562 return 0;
3563 }
3564 break;
3565
3566 case VIDIOC_S_CTRL:
3567 {
3568 struct v4l2_control *ctrl = arg;
3569 struct video_picture pict;
3570
3571 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3572 ZR_DEVNAME(zr), ctrl->id);
3573
3574 /* we only support hue/saturation/contrast/brightness */
3575 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3576 ctrl->id > V4L2_CID_HUE)
3577 return -EINVAL;
3578
3579 if (ctrl->value < 0 || ctrl->value > 65535) {
3580 dprintk(1,
3581 KERN_ERR
3582 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3583 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3584 return -EINVAL;
3585 }
3586
3587 mutex_lock(&zr->resource_lock);
3588 switch (ctrl->id) {
3589 case V4L2_CID_BRIGHTNESS:
3590 zr->brightness = ctrl->value;
3591 break;
3592 case V4L2_CID_CONTRAST:
3593 zr->contrast = ctrl->value;
3594 break;
3595 case V4L2_CID_SATURATION:
3596 zr->saturation = ctrl->value;
3597 break;
3598 case V4L2_CID_HUE:
3599 zr->hue = ctrl->value;
3600 break;
3601 }
3602 pict.brightness = zr->brightness;
3603 pict.contrast = zr->contrast;
3604 pict.colour = zr->saturation;
3605 pict.hue = zr->hue;
3606
3607 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3608
3609 mutex_unlock(&zr->resource_lock);
3610
3611 return 0;
3612 }
3613 break;
3614
3615 case VIDIOC_ENUMSTD:
3616 {
3617 struct v4l2_standard *std = arg;
3618
3619 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3620 ZR_DEVNAME(zr), std->index);
3621
3622 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3623 return -EINVAL;
3624 else {
3625 int id = std->index;
3626 memset(std, 0, sizeof(*std));
3627 std->index = id;
3628 }
3629
3630 if (std->index == zr->card.norms) {
3631 /* if we have autodetect, ... */
3632 struct video_decoder_capability caps;
3633 decoder_command(zr, DECODER_GET_CAPABILITIES,
3634 &caps);
3635 if (caps.flags & VIDEO_DECODER_AUTO) {
3636 std->id = V4L2_STD_ALL;
3637 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3638 return 0;
3639 } else
3640 return -EINVAL;
3641 }
3642 switch (std->index) {
3643 case 0:
3644 std->id = V4L2_STD_PAL;
3645 strncpy(std->name, "PAL", sizeof(std->name)-1);
3646 std->frameperiod.numerator = 1;
3647 std->frameperiod.denominator = 25;
3648 std->framelines = zr->card.tvn[0]->Ht;
3649 break;
3650 case 1:
3651 std->id = V4L2_STD_NTSC;
3652 strncpy(std->name, "NTSC", sizeof(std->name)-1);
3653 std->frameperiod.numerator = 1001;
3654 std->frameperiod.denominator = 30000;
3655 std->framelines = zr->card.tvn[1]->Ht;
3656 break;
3657 case 2:
3658 std->id = V4L2_STD_SECAM;
3659 strncpy(std->name, "SECAM", sizeof(std->name)-1);
3660 std->frameperiod.numerator = 1;
3661 std->frameperiod.denominator = 25;
3662 std->framelines = zr->card.tvn[2]->Ht;
3663 break;
3664 }
3665
3666 return 0;
3667 }
3668 break;
3669
3670 case VIDIOC_G_STD:
3671 {
3672 v4l2_std_id *std = arg;
3673 int norm;
3674
3675 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3676
3677 mutex_lock(&zr->resource_lock);
3678 norm = zr->norm;
3679 mutex_unlock(&zr->resource_lock);
3680
3681 switch (norm) {
3682 case VIDEO_MODE_PAL:
3683 *std = V4L2_STD_PAL;
3684 break;
3685 case VIDEO_MODE_NTSC:
3686 *std = V4L2_STD_NTSC;
3687 break;
3688 case VIDEO_MODE_SECAM:
3689 *std = V4L2_STD_SECAM;
3690 break;
3691 }
3692
3693 return 0;
3694 }
3695 break;
3696
3697 case VIDIOC_S_STD:
3698 {
3699 int norm = -1, res = 0;
3700 v4l2_std_id *std = arg;
3701
3702 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3703 ZR_DEVNAME(zr), (unsigned long long)*std);
3704
3705 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3706 norm = VIDEO_MODE_PAL;
3707 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3708 norm = VIDEO_MODE_NTSC;
3709 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3710 norm = VIDEO_MODE_SECAM;
3711 else if (*std == V4L2_STD_ALL)
3712 norm = VIDEO_MODE_AUTO;
3713 else {
3714 dprintk(1,
3715 KERN_ERR
3716 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3717 ZR_DEVNAME(zr), (unsigned long long)*std);
3718 return -EINVAL;
3719 }
3720
3721 mutex_lock(&zr->resource_lock);
3722 if ((res = zoran_set_norm(zr, norm)))
3723 goto sstd_unlock_and_return;
3724
3725 res = wait_grab_pending(zr);
3726 sstd_unlock_and_return:
3727 mutex_unlock(&zr->resource_lock);
3728 return res;
3729 }
3730 break;
3731
3732 case VIDIOC_ENUMINPUT:
3733 {
3734 struct v4l2_input *inp = arg;
3735 int status;
3736
3737 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3738 ZR_DEVNAME(zr), inp->index);
3739
3740 if (inp->index < 0 || inp->index >= zr->card.inputs)
3741 return -EINVAL;
3742 else {
3743 int id = inp->index;
3744 memset(inp, 0, sizeof(*inp));
3745 inp->index = id;
3746 }
3747
3748 strncpy(inp->name, zr->card.input[inp->index].name,
3749 sizeof(inp->name) - 1);
3750 inp->type = V4L2_INPUT_TYPE_CAMERA;
3751 inp->std = V4L2_STD_ALL;
3752
3753 /* Get status of video decoder */
3754 mutex_lock(&zr->resource_lock);
3755 decoder_command(zr, DECODER_GET_STATUS, &status);
3756 mutex_unlock(&zr->resource_lock);
3757
3758 if (!(status & DECODER_STATUS_GOOD)) {
3759 inp->status |= V4L2_IN_ST_NO_POWER;
3760 inp->status |= V4L2_IN_ST_NO_SIGNAL;
3761 }
3762 if (!(status & DECODER_STATUS_COLOR))
3763 inp->status |= V4L2_IN_ST_NO_COLOR;
3764
3765 return 0;
3766 }
3767 break;
3768
3769 case VIDIOC_G_INPUT:
3770 {
3771 int *input = arg;
3772
3773 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3774
3775 mutex_lock(&zr->resource_lock);
3776 *input = zr->input;
3777 mutex_unlock(&zr->resource_lock);
3778
3779 return 0;
3780 }
3781 break;
3782
3783 case VIDIOC_S_INPUT:
3784 {
3785 int *input = arg, res = 0;
3786
3787 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3788 ZR_DEVNAME(zr), *input);
3789
3790 mutex_lock(&zr->resource_lock);
3791 if ((res = zoran_set_input(zr, *input)))
3792 goto sinput_unlock_and_return;
3793
3794 /* Make sure the changes come into effect */
3795 res = wait_grab_pending(zr);
3796 sinput_unlock_and_return:
3797 mutex_unlock(&zr->resource_lock);
3798 return res;
3799 }
3800 break;
3801
3802 case VIDIOC_ENUMOUTPUT:
3803 {
3804 struct v4l2_output *outp = arg;
3805
3806 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3807 ZR_DEVNAME(zr), outp->index);
3808
3809 if (outp->index != 0)
3810 return -EINVAL;
3811
3812 memset(outp, 0, sizeof(*outp));
3813 outp->index = 0;
3814 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3815 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3816
3817 return 0;
3818 }
3819 break;
3820
3821 case VIDIOC_G_OUTPUT:
3822 {
3823 int *output = arg;
3824
3825 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3826
3827 *output = 0;
3828
3829 return 0;
3830 }
3831 break;
3832
3833 case VIDIOC_S_OUTPUT:
3834 {
3835 int *output = arg;
3836
3837 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3838 ZR_DEVNAME(zr), *output);
3839
3840 if (*output != 0)
3841 return -EINVAL;
3842
3843 return 0;
3844 }
3845 break;
3846
3847 /* cropping (sub-frame capture) */
3848 case VIDIOC_CROPCAP:
3849 {
3850 struct v4l2_cropcap *cropcap = arg;
3851 int type = cropcap->type, res = 0;
3852
3853 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3854 ZR_DEVNAME(zr), cropcap->type);
3855
3856 memset(cropcap, 0, sizeof(*cropcap));
3857 cropcap->type = type;
3858
3859 mutex_lock(&zr->resource_lock);
3860
3861 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3862 (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3863 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3864 dprintk(1,
3865 KERN_ERR
3866 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3867 ZR_DEVNAME(zr));
3868 res = -EINVAL;
3869 goto cropcap_unlock_and_return;
3870 }
3871
3872 cropcap->bounds.top = cropcap->bounds.left = 0;
3873 cropcap->bounds.width = BUZ_MAX_WIDTH;
3874 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3875 cropcap->defrect.top = cropcap->defrect.left = 0;
3876 cropcap->defrect.width = BUZ_MIN_WIDTH;
3877 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3878 cropcap_unlock_and_return:
3879 mutex_unlock(&zr->resource_lock);
3880 return res;
3881 }
3882 break;
3883
3884 case VIDIOC_G_CROP:
3885 {
3886 struct v4l2_crop *crop = arg;
3887 int type = crop->type, res = 0;
3888
3889 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3890 ZR_DEVNAME(zr), crop->type);
3891
3892 memset(crop, 0, sizeof(*crop));
3893 crop->type = type;
3894
3895 mutex_lock(&zr->resource_lock);
3896
3897 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3898 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3899 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3900 dprintk(1,
3901 KERN_ERR
3902 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3903 ZR_DEVNAME(zr));
3904 res = -EINVAL;
3905 goto gcrop_unlock_and_return;
3906 }
3907
3908 crop->c.top = fh->jpg_settings.img_y;
3909 crop->c.left = fh->jpg_settings.img_x;
3910 crop->c.width = fh->jpg_settings.img_width;
3911 crop->c.height = fh->jpg_settings.img_height;
3912
3913 gcrop_unlock_and_return:
3914 mutex_unlock(&zr->resource_lock);
3915
3916 return res;
3917 }
3918 break;
3919
3920 case VIDIOC_S_CROP:
3921 {
3922 struct v4l2_crop *crop = arg;
3923 int res = 0;
3924
3925 settings = fh->jpg_settings;
3926
3927 dprintk(3,
3928 KERN_ERR
3929 "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3930 ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3931 crop->c.width, crop->c.height);
3932
3933 mutex_lock(&zr->resource_lock);
3934
3935 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3936 dprintk(1,
3937 KERN_ERR
3938 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3939 ZR_DEVNAME(zr));
3940 res = -EBUSY;
3941 goto scrop_unlock_and_return;
3942 }
3943
3944 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3945 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3946 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3947 dprintk(1,
3948 KERN_ERR
3949 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3950 ZR_DEVNAME(zr));
3951 res = -EINVAL;
3952 goto scrop_unlock_and_return;
3953 }
3954
3955 /* move into a form that we understand */
3956 settings.img_x = crop->c.left;
3957 settings.img_y = crop->c.top;
3958 settings.img_width = crop->c.width;
3959 settings.img_height = crop->c.height;
3960
3961 /* check validity */
3962 if ((res = zoran_check_jpg_settings(zr, &settings)))
3963 goto scrop_unlock_and_return;
3964
3965 /* accept */
3966 fh->jpg_settings = settings;
3967
3968 scrop_unlock_and_return:
3969 mutex_unlock(&zr->resource_lock);
3970 return res;
3971 }
3972 break;
3973
3974 case VIDIOC_G_JPEGCOMP:
3975 {
3976 struct v4l2_jpegcompression *params = arg;
3977
3978 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3979 ZR_DEVNAME(zr));
3980
3981 memset(params, 0, sizeof(*params));
3982
3983 mutex_lock(&zr->resource_lock);
3984
3985 params->quality = fh->jpg_settings.jpg_comp.quality;
3986 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3987 memcpy(params->APP_data,
3988 fh->jpg_settings.jpg_comp.APP_data,
3989 fh->jpg_settings.jpg_comp.APP_len);
3990 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3991 memcpy(params->COM_data,
3992 fh->jpg_settings.jpg_comp.COM_data,
3993 fh->jpg_settings.jpg_comp.COM_len);
3994 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3995 params->jpeg_markers =
3996 fh->jpg_settings.jpg_comp.jpeg_markers;
3997
3998 mutex_unlock(&zr->resource_lock);
3999
4000 return 0;
4001 }
4002 break;
4003
4004 case VIDIOC_S_JPEGCOMP:
4005 {
4006 struct v4l2_jpegcompression *params = arg;
4007 int res = 0;
4008
4009 settings = fh->jpg_settings;
4010
4011 dprintk(3,
4012 KERN_DEBUG
4013 "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4014 ZR_DEVNAME(zr), params->quality, params->APPn,
4015 params->APP_len, params->COM_len);
4016
4017 settings.jpg_comp = *params;
4018
4019 mutex_lock(&zr->resource_lock);
4020
4021 if (fh->v4l_buffers.active != ZORAN_FREE ||
4022 fh->jpg_buffers.active != ZORAN_FREE) {
4023 dprintk(1,
4024 KERN_WARNING
4025 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4026 ZR_DEVNAME(zr));
4027 res = -EBUSY;
4028 goto sjpegc_unlock_and_return;
4029 }
4030
4031 if ((res = zoran_check_jpg_settings(zr, &settings)))
4032 goto sjpegc_unlock_and_return;
4033 if (!fh->jpg_buffers.allocated)
4034 fh->jpg_buffers.buffer_size =
4035 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4036 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4037 sjpegc_unlock_and_return:
4038 mutex_unlock(&zr->resource_lock);
4039
4040 return 0;
4041 }
4042 break;
4043
4044 case VIDIOC_QUERYSTD: /* why is this useful? */
4045 {
4046 v4l2_std_id *std = arg;
4047
4048 dprintk(3,
4049 KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4050 ZR_DEVNAME(zr), (unsigned long long)*std);
4051
4052 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4053 *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4054 zr->card.norms == 3)) {
4055 return 0;
4056 }
4057
4058 return -EINVAL;
4059 }
4060 break;
4061
4062 case VIDIOC_TRY_FMT:
4063 {
4064 struct v4l2_format *fmt = arg;
4065 int res = 0;
4066
4067 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4068 ZR_DEVNAME(zr), fmt->type);
4069
4070 switch (fmt->type) {
4071 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4072 mutex_lock(&zr->resource_lock);
4073
4074 if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4075 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4076 if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4077 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4078 if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4079 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4080 if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4081 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4082
4083 mutex_unlock(&zr->resource_lock);
4084 break;
4085
4086 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4087 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4088 if (fmt->fmt.pix.bytesperline > 0)
4089 return -EINVAL;
4090
4091 mutex_lock(&zr->resource_lock);
4092
4093 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4094 settings = fh->jpg_settings;
4095
4096 /* we actually need to set 'real' parameters now */
4097 if ((fmt->fmt.pix.height * 2) >
4098 BUZ_MAX_HEIGHT)
4099 settings.TmpDcm = 1;
4100 else
4101 settings.TmpDcm = 2;
4102 settings.decimation = 0;
4103 if (fmt->fmt.pix.height <=
4104 fh->jpg_settings.img_height / 2)
4105 settings.VerDcm = 2;
4106 else
4107 settings.VerDcm = 1;
4108 if (fmt->fmt.pix.width <=
4109 fh->jpg_settings.img_width / 4)
4110 settings.HorDcm = 4;
4111 else if (fmt->fmt.pix.width <=
4112 fh->jpg_settings.img_width / 2)
4113 settings.HorDcm = 2;
4114 else
4115 settings.HorDcm = 1;
4116 if (settings.TmpDcm == 1)
4117 settings.field_per_buff = 2;
4118 else
4119 settings.field_per_buff = 1;
4120
4121 /* check */
4122 if ((res =
4123 zoran_check_jpg_settings(zr,
4124 &settings)))
4125 goto tryfmt_unlock_and_return;
4126
4127 /* tell the user what we actually did */
4128 fmt->fmt.pix.width =
4129 settings.img_width / settings.HorDcm;
4130 fmt->fmt.pix.height =
4131 settings.img_height * 2 /
4132 (settings.TmpDcm * settings.VerDcm);
4133 if (settings.TmpDcm == 1)
4134 fmt->fmt.pix.field =
4135 (fh->jpg_settings.
4136 odd_even ? V4L2_FIELD_SEQ_TB :
4137 V4L2_FIELD_SEQ_BT);
4138 else
4139 fmt->fmt.pix.field =
4140 (fh->jpg_settings.
4141 odd_even ? V4L2_FIELD_TOP :
4142 V4L2_FIELD_BOTTOM);
4143
4144 fmt->fmt.pix.sizeimage =
4145 zoran_v4l2_calc_bufsize(&settings);
4146 } else if (fmt->type ==
4147 V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4148 int i;
4149
4150 for (i = 0; i < NUM_FORMATS; i++)
4151 if (zoran_formats[i].fourcc ==
4152 fmt->fmt.pix.pixelformat)
4153 break;
4154 if (i == NUM_FORMATS) {
4155 res = -EINVAL;
4156 goto tryfmt_unlock_and_return;
4157 }
4158
4159 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4160 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4161 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4162 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4163 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4164 fmt->fmt.pix.height =
4165 BUZ_MAX_HEIGHT;
4166 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4167 fmt->fmt.pix.height =
4168 BUZ_MIN_HEIGHT;
4169 } else {
4170 res = -EINVAL;
4171 goto tryfmt_unlock_and_return;
4172 }
4173 tryfmt_unlock_and_return:
4174 mutex_unlock(&zr->resource_lock);
4175
4176 return res;
4177 break;
4178
4179 default:
4180 return -EINVAL;
4181 }
4182
4183 return 0;
4184 }
4185 break;
4186
4187 default:
4188 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4189 ZR_DEVNAME(zr), cmd);
4190 return -ENOIOCTLCMD;
4191 break;
4192
4193 }
4194 return 0;
4195}
4196
4197
4198static int
4199zoran_ioctl (struct inode *inode,
4200 struct file *file,
4201 unsigned int cmd,
4202 unsigned long arg)
4203{
4204 return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4205}
4206
4207static unsigned int
4208zoran_poll (struct file *file,
4209 poll_table *wait)
4210{
4211 struct zoran_fh *fh = file->private_data;
4212 struct zoran *zr = fh->zr;
4213 int res = 0, frame;
4214 unsigned long flags;
4215
4216 /* we should check whether buffers are ready to be synced on
4217 * (w/o waits - O_NONBLOCK) here
4218 * if ready for read (sync), return POLLIN|POLLRDNORM,
4219 * if ready for write (sync), return POLLOUT|POLLWRNORM,
4220 * if error, return POLLERR,
4221 * if no buffers queued or so, return POLLNVAL
4222 */
4223
4224 mutex_lock(&zr->resource_lock);
4225
4226 switch (fh->map_mode) {
4227 case ZORAN_MAP_MODE_RAW:
4228 poll_wait(file, &zr->v4l_capq, wait);
4229 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4230
4231 spin_lock_irqsave(&zr->spinlock, flags);
4232 dprintk(3,
4233 KERN_DEBUG
4234 "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4235 ZR_DEVNAME(zr), __func__,
4236 "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4237 "UPMD"[zr->v4l_buffers.buffer[frame].state],
4238 zr->v4l_pend_tail, zr->v4l_pend_head);
4239 /* Process is the one capturing? */
4240 if (fh->v4l_buffers.active != ZORAN_FREE &&
4241 /* Buffer ready to DQBUF? */
4242 zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4243 res = POLLIN | POLLRDNORM;
4244 spin_unlock_irqrestore(&zr->spinlock, flags);
4245
4246 break;
4247
4248 case ZORAN_MAP_MODE_JPG_REC:
4249 case ZORAN_MAP_MODE_JPG_PLAY:
4250 poll_wait(file, &zr->jpg_capq, wait);
4251 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4252
4253 spin_lock_irqsave(&zr->spinlock, flags);
4254 dprintk(3,
4255 KERN_DEBUG
4256 "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4257 ZR_DEVNAME(zr), __func__,
4258 "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4259 "UPMD"[zr->jpg_buffers.buffer[frame].state],
4260 zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4261 if (fh->jpg_buffers.active != ZORAN_FREE &&
4262 zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4263 if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4264 res = POLLIN | POLLRDNORM;
4265 else
4266 res = POLLOUT | POLLWRNORM;
4267 }
4268 spin_unlock_irqrestore(&zr->spinlock, flags);
4269
4270 break;
4271
4272 default:
4273 dprintk(1,
4274 KERN_ERR
4275 "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4276 ZR_DEVNAME(zr), fh->map_mode);
4277 res = POLLNVAL;
4278 }
4279
4280 mutex_unlock(&zr->resource_lock);
4281
4282 return res;
4283}
4284
4285
4286/*
4287 * This maps the buffers to user space.
4288 *
4289 * Depending on the state of fh->map_mode
4290 * the V4L or the MJPEG buffers are mapped
4291 * per buffer or all together
4292 *
4293 * Note that we need to connect to some
4294 * unmap signal event to unmap the de-allocate
4295 * the buffer accordingly (zoran_vm_close())
4296 */
4297
4298static void
4299zoran_vm_open (struct vm_area_struct *vma)
4300{
4301 struct zoran_mapping *map = vma->vm_private_data;
4302
4303 map->count++;
4304}
4305
4306static void
4307zoran_vm_close (struct vm_area_struct *vma)
4308{
4309 struct zoran_mapping *map = vma->vm_private_data;
4310 struct file *file = map->file;
4311 struct zoran_fh *fh = file->private_data;
4312 struct zoran *zr = fh->zr;
4313 int i;
4314
4315 map->count--;
4316 if (map->count == 0) {
4317 switch (fh->map_mode) {
4318 case ZORAN_MAP_MODE_JPG_REC:
4319 case ZORAN_MAP_MODE_JPG_PLAY:
4320
4321 dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4322 ZR_DEVNAME(zr));
4323
4324 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4325 if (fh->jpg_buffers.buffer[i].map == map) {
4326 fh->jpg_buffers.buffer[i].map =
4327 NULL;
4328 }
4329 }
4330 kfree(map);
4331
4332 for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4333 if (fh->jpg_buffers.buffer[i].map)
4334 break;
4335 if (i == fh->jpg_buffers.num_buffers) {
4336 mutex_lock(&zr->resource_lock);
4337
4338 if (fh->jpg_buffers.active != ZORAN_FREE) {
4339 jpg_qbuf(file, -1, zr->codec_mode);
4340 zr->jpg_buffers.allocated = 0;
4341 zr->jpg_buffers.active =
4342 fh->jpg_buffers.active =
4343 ZORAN_FREE;
4344 }
4345 //jpg_fbuffer_free(file);
4346 fh->jpg_buffers.allocated = 0;
4347 fh->jpg_buffers.ready_to_be_freed = 1;
4348
4349 mutex_unlock(&zr->resource_lock);
4350 }
4351
4352 break;
4353
4354 case ZORAN_MAP_MODE_RAW:
4355
4356 dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4357 ZR_DEVNAME(zr));
4358
4359 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4360 if (fh->v4l_buffers.buffer[i].map == map) {
4361 /* unqueue/unmap */
4362 fh->v4l_buffers.buffer[i].map =
4363 NULL;
4364 }
4365 }
4366 kfree(map);
4367
4368 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4369 if (fh->v4l_buffers.buffer[i].map)
4370 break;
4371 if (i == fh->v4l_buffers.num_buffers) {
4372 mutex_lock(&zr->resource_lock);
4373
4374 if (fh->v4l_buffers.active != ZORAN_FREE) {
4375 unsigned long flags;
4376
4377 spin_lock_irqsave(&zr->spinlock, flags);
4378 zr36057_set_memgrab(zr, 0);
4379 zr->v4l_buffers.allocated = 0;
4380 zr->v4l_buffers.active =
4381 fh->v4l_buffers.active =
4382 ZORAN_FREE;
4383 spin_unlock_irqrestore(&zr->spinlock, flags);
4384 }
4385 //v4l_fbuffer_free(file);
4386 fh->v4l_buffers.allocated = 0;
4387 fh->v4l_buffers.ready_to_be_freed = 1;
4388
4389 mutex_unlock(&zr->resource_lock);
4390 }
4391
4392 break;
4393
4394 default:
4395 printk(KERN_ERR
4396 "%s: munmap() - internal error - unknown map mode %d\n",
4397 ZR_DEVNAME(zr), fh->map_mode);
4398 break;
4399
4400 }
4401 }
4402}
4403
4404static struct vm_operations_struct zoran_vm_ops = {
4405 .open = zoran_vm_open,
4406 .close = zoran_vm_close,
4407};
4408
4409static int
4410zoran_mmap (struct file *file,
4411 struct vm_area_struct *vma)
4412{
4413 struct zoran_fh *fh = file->private_data;
4414 struct zoran *zr = fh->zr;
4415 unsigned long size = (vma->vm_end - vma->vm_start);
4416 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4417 int i, j;
4418 unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4419 int first, last;
4420 struct zoran_mapping *map;
4421 int res = 0;
4422
4423 dprintk(3,
4424 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4425 ZR_DEVNAME(zr),
4426 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4427 vma->vm_start, vma->vm_end, size);
4428
4429 if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4430 !(vma->vm_flags & VM_WRITE)) {
4431 dprintk(1,
4432 KERN_ERR
4433 "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4434 ZR_DEVNAME(zr));
4435 return -EINVAL;
4436 }
4437
4438 switch (fh->map_mode) {
4439
4440 case ZORAN_MAP_MODE_JPG_REC:
4441 case ZORAN_MAP_MODE_JPG_PLAY:
4442
4443 /* lock */
4444 mutex_lock(&zr->resource_lock);
4445
4446 /* Map the MJPEG buffers */
4447 if (!fh->jpg_buffers.allocated) {
4448 dprintk(1,
4449 KERN_ERR
4450 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4451 ZR_DEVNAME(zr));
4452 res = -ENOMEM;
4453 goto jpg_mmap_unlock_and_return;
4454 }
4455
4456 first = offset / fh->jpg_buffers.buffer_size;
4457 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4458 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4459 size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4460 last < 0 || first >= fh->jpg_buffers.num_buffers ||
4461 last >= fh->jpg_buffers.num_buffers) {
4462 dprintk(1,
4463 KERN_ERR
4464 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4465 ZR_DEVNAME(zr), offset, size,
4466 fh->jpg_buffers.buffer_size,
4467 fh->jpg_buffers.num_buffers);
4468 res = -EINVAL;
4469 goto jpg_mmap_unlock_and_return;
4470 }
4471 for (i = first; i <= last; i++) {
4472 if (fh->jpg_buffers.buffer[i].map) {
4473 dprintk(1,
4474 KERN_ERR
4475 "%s: mmap(MJPEG) - buffer %d already mapped\n",
4476 ZR_DEVNAME(zr), i);
4477 res = -EBUSY;
4478 goto jpg_mmap_unlock_and_return;
4479 }
4480 }
4481
4482 /* map these buffers (v4l_buffers[i]) */
4483 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4484 if (!map) {
4485 res = -ENOMEM;
4486 goto jpg_mmap_unlock_and_return;
4487 }
4488 map->file = file;
4489 map->count = 1;
4490
4491 vma->vm_ops = &zoran_vm_ops;
4492 vma->vm_flags |= VM_DONTEXPAND;
4493 vma->vm_private_data = map;
4494
4495 for (i = first; i <= last; i++) {
4496 for (j = 0;
4497 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4498 j++) {
4499 fraglen =
4500 (le32_to_cpu(fh->jpg_buffers.buffer[i].
4501 frag_tab[2 * j + 1]) & ~1) << 1;
4502 todo = size;
4503 if (todo > fraglen)
4504 todo = fraglen;
4505 pos =
4506 le32_to_cpu(fh->jpg_buffers.
4507 buffer[i].frag_tab[2 * j]);
4508 /* should just be pos on i386 */
4509 page = virt_to_phys(bus_to_virt(pos))
4510 >> PAGE_SHIFT;
4511 if (remap_pfn_range(vma, start, page,
4512 todo, PAGE_SHARED)) {
4513 dprintk(1,
4514 KERN_ERR
4515 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4516 ZR_DEVNAME(zr));
4517 res = -EAGAIN;
4518 goto jpg_mmap_unlock_and_return;
4519 }
4520 size -= todo;
4521 start += todo;
4522 if (size == 0)
4523 break;
4524 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4525 frag_tab[2 * j + 1]) & 1)
4526 break; /* was last fragment */
4527 }
4528 fh->jpg_buffers.buffer[i].map = map;
4529 if (size == 0)
4530 break;
4531
4532 }
4533 jpg_mmap_unlock_and_return:
4534 mutex_unlock(&zr->resource_lock);
4535
4536 break;
4537
4538 case ZORAN_MAP_MODE_RAW:
4539
4540 mutex_lock(&zr->resource_lock);
4541
4542 /* Map the V4L buffers */
4543 if (!fh->v4l_buffers.allocated) {
4544 dprintk(1,
4545 KERN_ERR
4546 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4547 ZR_DEVNAME(zr));
4548 res = -ENOMEM;
4549 goto v4l_mmap_unlock_and_return;
4550 }
4551
4552 first = offset / fh->v4l_buffers.buffer_size;
4553 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4554 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4555 size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4556 last < 0 || first >= fh->v4l_buffers.num_buffers ||
4557 last >= fh->v4l_buffers.buffer_size) {
4558 dprintk(1,
4559 KERN_ERR
4560 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4561 ZR_DEVNAME(zr), offset, size,
4562 fh->v4l_buffers.buffer_size,
4563 fh->v4l_buffers.num_buffers);
4564 res = -EINVAL;
4565 goto v4l_mmap_unlock_and_return;
4566 }
4567 for (i = first; i <= last; i++) {
4568 if (fh->v4l_buffers.buffer[i].map) {
4569 dprintk(1,
4570 KERN_ERR
4571 "%s: mmap(V4L) - buffer %d already mapped\n",
4572 ZR_DEVNAME(zr), i);
4573 res = -EBUSY;
4574 goto v4l_mmap_unlock_and_return;
4575 }
4576 }
4577
4578 /* map these buffers (v4l_buffers[i]) */
4579 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4580 if (!map) {
4581 res = -ENOMEM;
4582 goto v4l_mmap_unlock_and_return;
4583 }
4584 map->file = file;
4585 map->count = 1;
4586
4587 vma->vm_ops = &zoran_vm_ops;
4588 vma->vm_flags |= VM_DONTEXPAND;
4589 vma->vm_private_data = map;
4590
4591 for (i = first; i <= last; i++) {
4592 todo = size;
4593 if (todo > fh->v4l_buffers.buffer_size)
4594 todo = fh->v4l_buffers.buffer_size;
4595 page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4596 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4597 todo, PAGE_SHARED)) {
4598 dprintk(1,
4599 KERN_ERR
4600 "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4601 ZR_DEVNAME(zr));
4602 res = -EAGAIN;
4603 goto v4l_mmap_unlock_and_return;
4604 }
4605 size -= todo;
4606 start += todo;
4607 fh->v4l_buffers.buffer[i].map = map;
4608 if (size == 0)
4609 break;
4610 }
4611 v4l_mmap_unlock_and_return:
4612 mutex_unlock(&zr->resource_lock);
4613
4614 break;
4615
4616 default:
4617 dprintk(1,
4618 KERN_ERR
4619 "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4620 ZR_DEVNAME(zr), fh->map_mode);
4621 break;
4622 }
4623
4624 return 0;
4625}
4626
4627static const struct file_operations zoran_fops = {
4628 .owner = THIS_MODULE,
4629 .open = zoran_open,
4630 .release = zoran_close,
4631 .ioctl = zoran_ioctl,
4632#ifdef CONFIG_COMPAT
4633 .compat_ioctl = v4l_compat_ioctl32,
4634#endif
4635 .llseek = no_llseek,
4636 .read = zoran_read,
4637 .write = zoran_write,
4638 .mmap = zoran_mmap,
4639 .poll = zoran_poll,
4640};
4641
4642struct video_device zoran_template __devinitdata = {
4643 .name = ZORAN_NAME,
4644 .fops = &zoran_fops,
4645 .release = &zoran_vdev_release,
4646 .minor = -1
4647};
4648
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-04 05:01:50 -0500