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PRCM: 34XX: Fix wrong shift value used in dpll4_m4x2_ck enable bit
[linux-ginger.git] / drivers / media / video / zoran_driver.c
blob5394d7a5cfee686b34457f6289378193e648908a
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 "videocodec.h"
75
76 #include <asm/byteorder.h>
77 #include <asm/io.h>
78 #include <asm/uaccess.h>
79 #include <linux/proc_fs.h>
80
81 #include <linux/video_decoder.h>
82 #include <linux/video_encoder.h>
83 #include <linux/mutex.h>
84 #include "zoran.h"
85 #include "zoran_device.h"
86 #include "zoran_card.h"
87
88 /* we declare some card type definitions here, they mean
89 * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
90 #define ZORAN_V4L2_VID_FLAGS ( \
91 V4L2_CAP_STREAMING |\
92 V4L2_CAP_VIDEO_CAPTURE |\
93 V4L2_CAP_VIDEO_OUTPUT |\
94 V4L2_CAP_VIDEO_OVERLAY \
95 )
96
97 #include <asm/byteorder.h>
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
107 const 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_RGB565, 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
197 extern int v4l_nbufs;
198 extern int v4l_bufsize;
199 extern int jpg_nbufs;
200 extern int jpg_bufsize;
201 extern int pass_through;
202
203 static int lock_norm; /* 0 = default 1 = Don't change TV standard (norm) */
204 module_param(lock_norm, int, 0644);
205 MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
206
207 /* small helper function for calculating buffersizes for v4l2
208 * we calculate the nearest higher power-of-two, which
209 * will be the recommended buffersize */
210 static __u32
211 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
212 {
213 __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
214 __u32 num = (1024 * 512) / (div);
215 __u32 result = 2;
216
217 num--;
218 while (num) {
219 num >>= 1;
220 result <<= 1;
221 }
222
223 if (result > jpg_bufsize)
224 return jpg_bufsize;
225 if (result < 8192)
226 return 8192;
227 return result;
228 }
229
230 /* forward references */
231 static void v4l_fbuffer_free(struct file *file);
232 static void jpg_fbuffer_free(struct file *file);
233
234 /*
235 * Allocate the V4L grab buffers
236 *
237 * These have to be pysically contiguous.
238 * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
239 * else we try to allocate them with bigphysarea_alloc_pages
240 * if the bigphysarea patch is present in the kernel,
241 * else we try to use high memory (if the user has bootet
242 * Linux with the necessary memory left over).
243 */
244
245 static unsigned long
246 get_high_mem (unsigned long size)
247 {
248 /*
249 * Check if there is usable memory at the end of Linux memory
250 * of at least size. Return the physical address of this memory,
251 * return 0 on failure.
252 *
253 * The idea is from Alexandro Rubini's book "Linux device drivers".
254 * The driver from him which is downloadable from O'Reilly's
255 * web site misses the "virt_to_phys(high_memory)" part
256 * (and therefore doesn't work at all - at least with 2.2.x kernels).
257 *
258 * It should be unnecessary to mention that THIS IS DANGEROUS,
259 * if more than one driver at a time has the idea to use this memory!!!!
260 */
261
262 volatile unsigned char __iomem *mem;
263 unsigned char c;
264 unsigned long hi_mem_ph;
265 unsigned long i;
266
267 /* Map the high memory to user space */
268
269 hi_mem_ph = virt_to_phys(high_memory);
270
271 mem = ioremap(hi_mem_ph, size);
272 if (!mem) {
273 dprintk(1,
274 KERN_ERR "%s: get_high_mem() - ioremap failed\n",
275 ZORAN_NAME);
276 return 0;
277 }
278
279 for (i = 0; i < size; i++) {
280 /* Check if it is memory */
281 c = i & 0xff;
282 writeb(c, mem + i);
283 if (readb(mem + i) != c)
284 break;
285 c = 255 - c;
286 writeb(c, mem + i);
287 if (readb(mem + i) != c)
288 break;
289 writeb(0, mem + i); /* zero out memory */
290
291 /* give the kernel air to breath */
292 if ((i & 0x3ffff) == 0x3ffff)
293 schedule();
294 }
295
296 iounmap(mem);
297
298 if (i != size) {
299 dprintk(1,
300 KERN_ERR
301 "%s: get_high_mem() - requested %lu, avail %lu\n",
302 ZORAN_NAME, size, i);
303 return 0;
304 }
305
306 return hi_mem_ph;
307 }
308
309 static int
310 v4l_fbuffer_alloc (struct file *file)
311 {
312 struct zoran_fh *fh = file->private_data;
313 struct zoran *zr = fh->zr;
314 int i, off;
315 unsigned char *mem;
316 unsigned long pmem = 0;
317
318 /* we might have old buffers lying around... */
319 if (fh->v4l_buffers.ready_to_be_freed) {
320 v4l_fbuffer_free(file);
321 }
322
323 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
324 if (fh->v4l_buffers.buffer[i].fbuffer)
325 dprintk(2,
326 KERN_WARNING
327 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
328 ZR_DEVNAME(zr), i);
329
330 //udelay(20);
331 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
332 /* Use kmalloc */
333
334 mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
335 if (!mem) {
336 dprintk(1,
337 KERN_ERR
338 "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
339 ZR_DEVNAME(zr), i);
340 v4l_fbuffer_free(file);
341 return -ENOBUFS;
342 }
343 fh->v4l_buffers.buffer[i].fbuffer = mem;
344 fh->v4l_buffers.buffer[i].fbuffer_phys =
345 virt_to_phys(mem);
346 fh->v4l_buffers.buffer[i].fbuffer_bus =
347 virt_to_bus(mem);
348 for (off = 0; off < fh->v4l_buffers.buffer_size;
349 off += PAGE_SIZE)
350 SetPageReserved(MAP_NR(mem + off));
351 dprintk(4,
352 KERN_INFO
353 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
354 ZR_DEVNAME(zr), i, (unsigned long) mem,
355 virt_to_bus(mem));
356 } else {
357
358 /* Use high memory which has been left at boot time */
359
360 /* Ok., Ok. this is an evil hack - we make
361 * the assumption that physical addresses are
362 * the same as bus addresses (true at least
363 * for Intel processors). The whole method of
364 * obtaining and using this memory is not very
365 * nice - but I hope it saves some poor users
366 * from kernel hacking, which might have even
367 * more evil results */
368
369 if (i == 0) {
370 int size =
371 fh->v4l_buffers.num_buffers *
372 fh->v4l_buffers.buffer_size;
373
374 pmem = get_high_mem(size);
375 if (pmem == 0) {
376 dprintk(1,
377 KERN_ERR
378 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
379 ZR_DEVNAME(zr), size >> 10);
380 return -ENOBUFS;
381 }
382 fh->v4l_buffers.buffer[0].fbuffer = NULL;
383 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
384 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
385 dprintk(4,
386 KERN_INFO
387 "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
388 ZR_DEVNAME(zr), size >> 10);
389 } else {
390 fh->v4l_buffers.buffer[i].fbuffer = NULL;
391 fh->v4l_buffers.buffer[i].fbuffer_phys =
392 pmem + i * fh->v4l_buffers.buffer_size;
393 fh->v4l_buffers.buffer[i].fbuffer_bus =
394 pmem + i * fh->v4l_buffers.buffer_size;
395 }
396 }
397 }
398
399 fh->v4l_buffers.allocated = 1;
400
401 return 0;
402 }
403
404 /* free the V4L grab buffers */
405 static void
406 v4l_fbuffer_free (struct file *file)
407 {
408 struct zoran_fh *fh = file->private_data;
409 struct zoran *zr = fh->zr;
410 int i, off;
411 unsigned char *mem;
412
413 dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
414
415 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
416 if (!fh->v4l_buffers.buffer[i].fbuffer)
417 continue;
418
419 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
420 mem = fh->v4l_buffers.buffer[i].fbuffer;
421 for (off = 0; off < fh->v4l_buffers.buffer_size;
422 off += PAGE_SIZE)
423 ClearPageReserved(MAP_NR(mem + off));
424 kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
425 }
426 fh->v4l_buffers.buffer[i].fbuffer = NULL;
427 }
428
429 fh->v4l_buffers.allocated = 0;
430 fh->v4l_buffers.ready_to_be_freed = 0;
431 }
432
433 /*
434 * Allocate the MJPEG grab buffers.
435 *
436 * If the requested buffer size is smaller than MAX_KMALLOC_MEM,
437 * kmalloc is used to request a physically contiguous area,
438 * else we allocate the memory in framgents with get_zeroed_page.
439 *
440 * If a Natoma chipset is present and this is a revision 1 zr36057,
441 * each MJPEG buffer needs to be physically contiguous.
442 * (RJ: This statement is from Dave Perks' original driver,
443 * I could never check it because I have a zr36067)
444 * The driver cares about this because it reduces the buffer
445 * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
446 *
447 * RJ: The contents grab buffers needs never be accessed in the driver.
448 * Therefore there is no need to allocate them with vmalloc in order
449 * to get a contiguous virtual memory space.
450 * I don't understand why many other drivers first allocate them with
451 * vmalloc (which uses internally also get_zeroed_page, but delivers you
452 * virtual addresses) and then again have to make a lot of efforts
453 * to get the physical address.
454 *
455 * Ben Capper:
456 * On big-endian architectures (such as ppc) some extra steps
457 * are needed. When reading and writing to the stat_com array
458 * and fragment buffers, the device expects to see little-
459 * endian values. The use of cpu_to_le32() and le32_to_cpu()
460 * in this function (and one or two others in zoran_device.c)
461 * ensure that these values are always stored in little-endian
462 * form, regardless of architecture. The zr36057 does Very Bad
463 * Things on big endian architectures if the stat_com array
464 * and fragment buffers are not little-endian.
465 */
466
467 static int
468 jpg_fbuffer_alloc (struct file *file)
469 {
470 struct zoran_fh *fh = file->private_data;
471 struct zoran *zr = fh->zr;
472 int i, j, off;
473 unsigned long mem;
474
475 /* we might have old buffers lying around */
476 if (fh->jpg_buffers.ready_to_be_freed) {
477 jpg_fbuffer_free(file);
478 }
479
480 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
481 if (fh->jpg_buffers.buffer[i].frag_tab)
482 dprintk(2,
483 KERN_WARNING
484 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
485 ZR_DEVNAME(zr), i);
486
487 /* Allocate fragment table for this buffer */
488
489 mem = get_zeroed_page(GFP_KERNEL);
490 if (mem == 0) {
491 dprintk(1,
492 KERN_ERR
493 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
494 ZR_DEVNAME(zr), i);
495 jpg_fbuffer_free(file);
496 return -ENOBUFS;
497 }
498 fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem;
499 fh->jpg_buffers.buffer[i].frag_tab_bus =
500 virt_to_bus((void *) mem);
501
502 //if (alloc_contig) {
503 if (fh->jpg_buffers.need_contiguous) {
504 mem =
505 (unsigned long) kmalloc(fh->jpg_buffers.
506 buffer_size,
507 GFP_KERNEL);
508 if (mem == 0) {
509 dprintk(1,
510 KERN_ERR
511 "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
512 ZR_DEVNAME(zr), i);
513 jpg_fbuffer_free(file);
514 return -ENOBUFS;
515 }
516 fh->jpg_buffers.buffer[i].frag_tab[0] =
517 cpu_to_le32(virt_to_bus((void *) mem));
518 fh->jpg_buffers.buffer[i].frag_tab[1] =
519 cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
520 for (off = 0; off < fh->jpg_buffers.buffer_size;
521 off += PAGE_SIZE)
522 SetPageReserved(MAP_NR(mem + off));
523 } else {
524 /* jpg_bufsize is allreay page aligned */
525 for (j = 0;
526 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
527 j++) {
528 mem = get_zeroed_page(GFP_KERNEL);
529 if (mem == 0) {
530 dprintk(1,
531 KERN_ERR
532 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
533 ZR_DEVNAME(zr), i);
534 jpg_fbuffer_free(file);
535 return -ENOBUFS;
536 }
537
538 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
539 cpu_to_le32(virt_to_bus((void *) mem));
540 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
541 1] =
542 cpu_to_le32((PAGE_SIZE / 4) << 1);
543 SetPageReserved(MAP_NR(mem));
544 }
545
546 fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
547 }
548 }
549
550 dprintk(4,
551 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
552 ZR_DEVNAME(zr),
553 (fh->jpg_buffers.num_buffers *
554 fh->jpg_buffers.buffer_size) >> 10);
555
556 fh->jpg_buffers.allocated = 1;
557
558 return 0;
559 }
560
561 /* free the MJPEG grab buffers */
562 static void
563 jpg_fbuffer_free (struct file *file)
564 {
565 struct zoran_fh *fh = file->private_data;
566 struct zoran *zr = fh->zr;
567 int i, j, off;
568 unsigned char *mem;
569
570 dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
571
572 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
573 if (!fh->jpg_buffers.buffer[i].frag_tab)
574 continue;
575
576 //if (alloc_contig) {
577 if (fh->jpg_buffers.need_contiguous) {
578 if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
579 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
580 fh->jpg_buffers.buffer[i].frag_tab[0]));
581 for (off = 0;
582 off < fh->jpg_buffers.buffer_size;
583 off += PAGE_SIZE)
584 ClearPageReserved(MAP_NR
585 (mem + off));
586 kfree(mem);
587 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
588 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
589 }
590 } else {
591 for (j = 0;
592 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
593 j++) {
594 if (!fh->jpg_buffers.buffer[i].
595 frag_tab[2 * j])
596 break;
597 ClearPageReserved(MAP_NR
598 (bus_to_virt
599 (le32_to_cpu
600 (fh->jpg_buffers.
601 buffer[i].frag_tab[2 *
602 j]))));
603 free_page((unsigned long)
604 bus_to_virt
605 (le32_to_cpu
606 (fh->jpg_buffers.
607 buffer[i].
608 frag_tab[2 * j])));
609 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
610 0;
611 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
612 1] = 0;
613 }
614 }
615
616 free_page((unsigned long) fh->jpg_buffers.buffer[i].
617 frag_tab);
618 fh->jpg_buffers.buffer[i].frag_tab = NULL;
619 }
620
621 fh->jpg_buffers.allocated = 0;
622 fh->jpg_buffers.ready_to_be_freed = 0;
623 }
624
625 /*
626 * V4L Buffer grabbing
627 */
628
629 static int
630 zoran_v4l_set_format (struct file *file,
631 int width,
632 int height,
633 const struct zoran_format *format)
634 {
635 struct zoran_fh *fh = file->private_data;
636 struct zoran *zr = fh->zr;
637 int bpp;
638
639 /* Check size and format of the grab wanted */
640
641 if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
642 height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
643 dprintk(1,
644 KERN_ERR
645 "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
646 ZR_DEVNAME(zr), width, height);
647 return -EINVAL;
648 }
649
650 bpp = (format->depth + 7) / 8;
651
652 /* Check against available buffer size */
653 if (height * width * bpp > fh->v4l_buffers.buffer_size) {
654 dprintk(1,
655 KERN_ERR
656 "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
657 ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
658 return -EINVAL;
659 }
660
661 /* The video front end needs 4-byte alinged line sizes */
662
663 if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
664 dprintk(1,
665 KERN_ERR
666 "%s: v4l_set_format() - wrong frame alingment\n",
667 ZR_DEVNAME(zr));
668 return -EINVAL;
669 }
670
671 fh->v4l_settings.width = width;
672 fh->v4l_settings.height = height;
673 fh->v4l_settings.format = format;
674 fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
675
676 return 0;
677 }
678
679 static int
680 zoran_v4l_queue_frame (struct file *file,
681 int num)
682 {
683 struct zoran_fh *fh = file->private_data;
684 struct zoran *zr = fh->zr;
685 unsigned long flags;
686 int res = 0;
687
688 if (!fh->v4l_buffers.allocated) {
689 dprintk(1,
690 KERN_ERR
691 "%s: v4l_queue_frame() - buffers not yet allocated\n",
692 ZR_DEVNAME(zr));
693 res = -ENOMEM;
694 }
695
696 /* No grabbing outside the buffer range! */
697 if (num >= fh->v4l_buffers.num_buffers || num < 0) {
698 dprintk(1,
699 KERN_ERR
700 "%s: v4l_queue_frame() - buffer %d is out of range\n",
701 ZR_DEVNAME(zr), num);
702 res = -EINVAL;
703 }
704
705 spin_lock_irqsave(&zr->spinlock, flags);
706
707 if (fh->v4l_buffers.active == ZORAN_FREE) {
708 if (zr->v4l_buffers.active == ZORAN_FREE) {
709 zr->v4l_buffers = fh->v4l_buffers;
710 fh->v4l_buffers.active = ZORAN_ACTIVE;
711 } else {
712 dprintk(1,
713 KERN_ERR
714 "%s: v4l_queue_frame() - another session is already capturing\n",
715 ZR_DEVNAME(zr));
716 res = -EBUSY;
717 }
718 }
719
720 /* make sure a grab isn't going on currently with this buffer */
721 if (!res) {
722 switch (zr->v4l_buffers.buffer[num].state) {
723 default:
724 case BUZ_STATE_PEND:
725 if (zr->v4l_buffers.active == ZORAN_FREE) {
726 fh->v4l_buffers.active = ZORAN_FREE;
727 zr->v4l_buffers.allocated = 0;
728 }
729 res = -EBUSY; /* what are you doing? */
730 break;
731 case BUZ_STATE_DONE:
732 dprintk(2,
733 KERN_WARNING
734 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
735 ZR_DEVNAME(zr), num);
736 case BUZ_STATE_USER:
737 /* since there is at least one unused buffer there's room for at least
738 * one more pend[] entry */
739 zr->v4l_pend[zr->v4l_pend_head++ &
740 V4L_MASK_FRAME] = num;
741 zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
742 zr->v4l_buffers.buffer[num].bs.length =
743 fh->v4l_settings.bytesperline *
744 zr->v4l_settings.height;
745 fh->v4l_buffers.buffer[num] =
746 zr->v4l_buffers.buffer[num];
747 break;
748 }
749 }
750
751 spin_unlock_irqrestore(&zr->spinlock, flags);
752
753 if (!res && zr->v4l_buffers.active == ZORAN_FREE)
754 zr->v4l_buffers.active = fh->v4l_buffers.active;
755
756 return res;
757 }
758
759 static int
760 v4l_grab (struct file *file,
761 struct video_mmap *mp)
762 {
763 struct zoran_fh *fh = file->private_data;
764 struct zoran *zr = fh->zr;
765 int res = 0, i;
766
767 for (i = 0; i < NUM_FORMATS; i++) {
768 if (zoran_formats[i].palette == mp->format &&
769 zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
770 !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
771 break;
772 }
773 if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
774 dprintk(1,
775 KERN_ERR
776 "%s: v4l_grab() - wrong bytes-per-pixel format\n",
777 ZR_DEVNAME(zr));
778 return -EINVAL;
779 }
780
781 /*
782 * To minimize the time spent in the IRQ routine, we avoid setting up
783 * the video front end there.
784 * If this grab has different parameters from a running streaming capture
785 * we stop the streaming capture and start it over again.
786 */
787 if (zr->v4l_memgrab_active &&
788 (zr->v4l_settings.width != mp->width ||
789 zr->v4l_settings.height != mp->height ||
790 zr->v4l_settings.format->palette != mp->format)) {
791 res = wait_grab_pending(zr);
792 if (res)
793 return res;
794 }
795 if ((res = zoran_v4l_set_format(file,
796 mp->width,
797 mp->height,
798 &zoran_formats[i])))
799 return res;
800 zr->v4l_settings = fh->v4l_settings;
801
802 /* queue the frame in the pending queue */
803 if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
804 fh->v4l_buffers.active = ZORAN_FREE;
805 return res;
806 }
807
808 /* put the 36057 into frame grabbing mode */
809 if (!res && !zr->v4l_memgrab_active)
810 zr36057_set_memgrab(zr, 1);
811
812 //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
813
814 return res;
815 }
816
817 /*
818 * Sync on a V4L buffer
819 */
820
821 static int
822 v4l_sync (struct file *file,
823 int frame)
824 {
825 struct zoran_fh *fh = file->private_data;
826 struct zoran *zr = fh->zr;
827 unsigned long flags;
828
829 if (fh->v4l_buffers.active == ZORAN_FREE) {
830 dprintk(1,
831 KERN_ERR
832 "%s: v4l_sync() - no grab active for this session\n",
833 ZR_DEVNAME(zr));
834 return -EINVAL;
835 }
836
837 /* check passed-in frame number */
838 if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
839 dprintk(1,
840 KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
841 ZR_DEVNAME(zr), frame);
842 return -EINVAL;
843 }
844
845 /* Check if is buffer was queued at all */
846 if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
847 dprintk(1,
848 KERN_ERR
849 "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
850 ZR_DEVNAME(zr));
851 return -EPROTO;
852 }
853
854 /* wait on this buffer to get ready */
855 if (!wait_event_interruptible_timeout(zr->v4l_capq,
856 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
857 10*HZ))
858 return -ETIME;
859 if (signal_pending(current))
860 return -ERESTARTSYS;
861
862 /* buffer should now be in BUZ_STATE_DONE */
863 if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
864 dprintk(2,
865 KERN_ERR "%s: v4l_sync() - internal state error\n",
866 ZR_DEVNAME(zr));
867
868 zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
869 fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
870
871 spin_lock_irqsave(&zr->spinlock, flags);
872
873 /* Check if streaming capture has finished */
874 if (zr->v4l_pend_tail == zr->v4l_pend_head) {
875 zr36057_set_memgrab(zr, 0);
876 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
877 fh->v4l_buffers.active = zr->v4l_buffers.active =
878 ZORAN_FREE;
879 zr->v4l_buffers.allocated = 0;
880 }
881 }
882
883 spin_unlock_irqrestore(&zr->spinlock, flags);
884
885 return 0;
886 }
887
888 /*
889 * Queue a MJPEG buffer for capture/playback
890 */
891
892 static int
893 zoran_jpg_queue_frame (struct file *file,
894 int num,
895 enum zoran_codec_mode mode)
896 {
897 struct zoran_fh *fh = file->private_data;
898 struct zoran *zr = fh->zr;
899 unsigned long flags;
900 int res = 0;
901
902 /* Check if buffers are allocated */
903 if (!fh->jpg_buffers.allocated) {
904 dprintk(1,
905 KERN_ERR
906 "%s: jpg_queue_frame() - buffers not yet allocated\n",
907 ZR_DEVNAME(zr));
908 return -ENOMEM;
909 }
910
911 /* No grabbing outside the buffer range! */
912 if (num >= fh->jpg_buffers.num_buffers || num < 0) {
913 dprintk(1,
914 KERN_ERR
915 "%s: jpg_queue_frame() - buffer %d out of range\n",
916 ZR_DEVNAME(zr), num);
917 return -EINVAL;
918 }
919
920 /* what is the codec mode right now? */
921 if (zr->codec_mode == BUZ_MODE_IDLE) {
922 zr->jpg_settings = fh->jpg_settings;
923 } else if (zr->codec_mode != mode) {
924 /* wrong codec mode active - invalid */
925 dprintk(1,
926 KERN_ERR
927 "%s: jpg_queue_frame() - codec in wrong mode\n",
928 ZR_DEVNAME(zr));
929 return -EINVAL;
930 }
931
932 if (fh->jpg_buffers.active == ZORAN_FREE) {
933 if (zr->jpg_buffers.active == ZORAN_FREE) {
934 zr->jpg_buffers = fh->jpg_buffers;
935 fh->jpg_buffers.active = ZORAN_ACTIVE;
936 } else {
937 dprintk(1,
938 KERN_ERR
939 "%s: jpg_queue_frame() - another session is already capturing\n",
940 ZR_DEVNAME(zr));
941 res = -EBUSY;
942 }
943 }
944
945 if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
946 /* Ok load up the jpeg codec */
947 zr36057_enable_jpg(zr, mode);
948 }
949
950 spin_lock_irqsave(&zr->spinlock, flags);
951
952 if (!res) {
953 switch (zr->jpg_buffers.buffer[num].state) {
954 case BUZ_STATE_DONE:
955 dprintk(2,
956 KERN_WARNING
957 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
958 ZR_DEVNAME(zr));
959 case BUZ_STATE_USER:
960 /* since there is at least one unused buffer there's room for at
961 *least one more pend[] entry */
962 zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
963 num;
964 zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
965 fh->jpg_buffers.buffer[num] =
966 zr->jpg_buffers.buffer[num];
967 zoran_feed_stat_com(zr);
968 break;
969 default:
970 case BUZ_STATE_DMA:
971 case BUZ_STATE_PEND:
972 if (zr->jpg_buffers.active == ZORAN_FREE) {
973 fh->jpg_buffers.active = ZORAN_FREE;
974 zr->jpg_buffers.allocated = 0;
975 }
976 res = -EBUSY; /* what are you doing? */
977 break;
978 }
979 }
980
981 spin_unlock_irqrestore(&zr->spinlock, flags);
982
983 if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
984 zr->jpg_buffers.active = fh->jpg_buffers.active;
985 }
986
987 return res;
988 }
989
990 static int
991 jpg_qbuf (struct file *file,
992 int frame,
993 enum zoran_codec_mode mode)
994 {
995 struct zoran_fh *fh = file->private_data;
996 struct zoran *zr = fh->zr;
997 int res = 0;
998
999 /* Does the user want to stop streaming? */
1000 if (frame < 0) {
1001 if (zr->codec_mode == mode) {
1002 if (fh->jpg_buffers.active == ZORAN_FREE) {
1003 dprintk(1,
1004 KERN_ERR
1005 "%s: jpg_qbuf(-1) - session not active\n",
1006 ZR_DEVNAME(zr));
1007 return -EINVAL;
1008 }
1009 fh->jpg_buffers.active = zr->jpg_buffers.active =
1010 ZORAN_FREE;
1011 zr->jpg_buffers.allocated = 0;
1012 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1013 return 0;
1014 } else {
1015 dprintk(1,
1016 KERN_ERR
1017 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1018 ZR_DEVNAME(zr));
1019 return -EINVAL;
1020 }
1021 }
1022
1023 if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1024 return res;
1025
1026 /* Start the jpeg codec when the first frame is queued */
1027 if (!res && zr->jpg_que_head == 1)
1028 jpeg_start(zr);
1029
1030 return res;
1031 }
1032
1033 /*
1034 * Sync on a MJPEG buffer
1035 */
1036
1037 static int
1038 jpg_sync (struct file *file,
1039 struct zoran_sync *bs)
1040 {
1041 struct zoran_fh *fh = file->private_data;
1042 struct zoran *zr = fh->zr;
1043 unsigned long flags;
1044 int frame;
1045
1046 if (fh->jpg_buffers.active == ZORAN_FREE) {
1047 dprintk(1,
1048 KERN_ERR
1049 "%s: jpg_sync() - capture is not currently active\n",
1050 ZR_DEVNAME(zr));
1051 return -EINVAL;
1052 }
1053 if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1054 zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1055 dprintk(1,
1056 KERN_ERR
1057 "%s: jpg_sync() - codec not in streaming mode\n",
1058 ZR_DEVNAME(zr));
1059 return -EINVAL;
1060 }
1061 if (!wait_event_interruptible_timeout(zr->jpg_capq,
1062 (zr->jpg_que_tail != zr->jpg_dma_tail ||
1063 zr->jpg_dma_tail == zr->jpg_dma_head),
1064 10*HZ)) {
1065 int isr;
1066
1067 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1068 udelay(1);
1069 zr->codec->control(zr->codec, CODEC_G_STATUS,
1070 sizeof(isr), &isr);
1071 dprintk(1,
1072 KERN_ERR
1073 "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1074 ZR_DEVNAME(zr), isr);
1075
1076 return -ETIME;
1077
1078 }
1079 if (signal_pending(current))
1080 return -ERESTARTSYS;
1081
1082 spin_lock_irqsave(&zr->spinlock, flags);
1083
1084 if (zr->jpg_dma_tail != zr->jpg_dma_head)
1085 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1086 else
1087 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1088
1089 /* buffer should now be in BUZ_STATE_DONE */
1090 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1091 dprintk(2,
1092 KERN_ERR "%s: jpg_sync() - internal state error\n",
1093 ZR_DEVNAME(zr));
1094
1095 *bs = zr->jpg_buffers.buffer[frame].bs;
1096 bs->frame = frame;
1097 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1098 fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1099
1100 spin_unlock_irqrestore(&zr->spinlock, flags);
1101
1102 return 0;
1103 }
1104
1105 static void
1106 zoran_open_init_session (struct file *file)
1107 {
1108 int i;
1109 struct zoran_fh *fh = file->private_data;
1110 struct zoran *zr = fh->zr;
1111
1112 /* Per default, map the V4L Buffers */
1113 fh->map_mode = ZORAN_MAP_MODE_RAW;
1114
1115 /* take over the card's current settings */
1116 fh->overlay_settings = zr->overlay_settings;
1117 fh->overlay_settings.is_set = 0;
1118 fh->overlay_settings.format = zr->overlay_settings.format;
1119 fh->overlay_active = ZORAN_FREE;
1120
1121 /* v4l settings */
1122 fh->v4l_settings = zr->v4l_settings;
1123
1124 /* v4l_buffers */
1125 memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1126 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1127 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1128 fh->v4l_buffers.buffer[i].bs.frame = i;
1129 }
1130 fh->v4l_buffers.allocated = 0;
1131 fh->v4l_buffers.ready_to_be_freed = 0;
1132 fh->v4l_buffers.active = ZORAN_FREE;
1133 fh->v4l_buffers.buffer_size = v4l_bufsize;
1134 fh->v4l_buffers.num_buffers = v4l_nbufs;
1135
1136 /* jpg settings */
1137 fh->jpg_settings = zr->jpg_settings;
1138
1139 /* jpg_buffers */
1140 memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1141 for (i = 0; i < BUZ_MAX_FRAME; i++) {
1142 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
1143 fh->jpg_buffers.buffer[i].bs.frame = i;
1144 }
1145 fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1146 fh->jpg_buffers.allocated = 0;
1147 fh->jpg_buffers.ready_to_be_freed = 0;
1148 fh->jpg_buffers.active = ZORAN_FREE;
1149 fh->jpg_buffers.buffer_size = jpg_bufsize;
1150 fh->jpg_buffers.num_buffers = jpg_nbufs;
1151 }
1152
1153 static void
1154 zoran_close_end_session (struct file *file)
1155 {
1156 struct zoran_fh *fh = file->private_data;
1157 struct zoran *zr = fh->zr;
1158
1159 /* overlay */
1160 if (fh->overlay_active != ZORAN_FREE) {
1161 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1162 zr->v4l_overlay_active = 0;
1163 if (!zr->v4l_memgrab_active)
1164 zr36057_overlay(zr, 0);
1165 zr->overlay_mask = NULL;
1166 }
1167
1168 /* v4l capture */
1169 if (fh->v4l_buffers.active != ZORAN_FREE) {
1170 unsigned long flags;
1171
1172 spin_lock_irqsave(&zr->spinlock, flags);
1173 zr36057_set_memgrab(zr, 0);
1174 zr->v4l_buffers.allocated = 0;
1175 zr->v4l_buffers.active = fh->v4l_buffers.active =
1176 ZORAN_FREE;
1177 spin_unlock_irqrestore(&zr->spinlock, flags);
1178 }
1179
1180 /* v4l buffers */
1181 if (fh->v4l_buffers.allocated ||
1182 fh->v4l_buffers.ready_to_be_freed) {
1183 v4l_fbuffer_free(file);
1184 }
1185
1186 /* jpg capture */
1187 if (fh->jpg_buffers.active != ZORAN_FREE) {
1188 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1189 zr->jpg_buffers.allocated = 0;
1190 zr->jpg_buffers.active = fh->jpg_buffers.active =
1191 ZORAN_FREE;
1192 }
1193
1194 /* jpg buffers */
1195 if (fh->jpg_buffers.allocated ||
1196 fh->jpg_buffers.ready_to_be_freed) {
1197 jpg_fbuffer_free(file);
1198 }
1199 }
1200
1201 /*
1202 * Open a zoran card. Right now the flags stuff is just playing
1203 */
1204
1205 static int
1206 zoran_open (struct inode *inode,
1207 struct file *file)
1208 {
1209 unsigned int minor = iminor(inode);
1210 struct zoran *zr = NULL;
1211 struct zoran_fh *fh;
1212 int i, res, first_open = 0, have_module_locks = 0;
1213
1214 /* find the device */
1215 for (i = 0; i < zoran_num; i++) {
1216 if (zoran[i].video_dev->minor == minor) {
1217 zr = &zoran[i];
1218 break;
1219 }
1220 }
1221
1222 if (!zr) {
1223 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1224 res = -ENODEV;
1225 goto open_unlock_and_return;
1226 }
1227
1228 /* see fs/device.c - the kernel already locks during open(),
1229 * so locking ourselves only causes deadlocks */
1230 /*mutex_lock(&zr->resource_lock);*/
1231
1232 if (!zr->decoder) {
1233 dprintk(1,
1234 KERN_ERR "%s: no TV decoder loaded for device!\n",
1235 ZR_DEVNAME(zr));
1236 res = -EIO;
1237 goto open_unlock_and_return;
1238 }
1239
1240 /* try to grab a module lock */
1241 if (!try_module_get(THIS_MODULE)) {
1242 dprintk(1,
1243 KERN_ERR
1244 "%s: failed to acquire my own lock! PANIC!\n",
1245 ZR_DEVNAME(zr));
1246 res = -ENODEV;
1247 goto open_unlock_and_return;
1248 }
1249 if (!try_module_get(zr->decoder->driver->driver.owner)) {
1250 dprintk(1,
1251 KERN_ERR
1252 "%s: failed to grab ownership of i2c decoder\n",
1253 ZR_DEVNAME(zr));
1254 res = -EIO;
1255 module_put(THIS_MODULE);
1256 goto open_unlock_and_return;
1257 }
1258 if (zr->encoder &&
1259 !try_module_get(zr->encoder->driver->driver.owner)) {
1260 dprintk(1,
1261 KERN_ERR
1262 "%s: failed to grab ownership of i2c encoder\n",
1263 ZR_DEVNAME(zr));
1264 res = -EIO;
1265 module_put(zr->decoder->driver->driver.owner);
1266 module_put(THIS_MODULE);
1267 goto open_unlock_and_return;
1268 }
1269
1270 have_module_locks = 1;
1271
1272 if (zr->user >= 2048) {
1273 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1274 ZR_DEVNAME(zr), zr->user);
1275 res = -EBUSY;
1276 goto open_unlock_and_return;
1277 }
1278
1279 dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1280 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1281
1282 /* now, create the open()-specific file_ops struct */
1283 fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1284 if (!fh) {
1285 dprintk(1,
1286 KERN_ERR
1287 "%s: zoran_open() - allocation of zoran_fh failed\n",
1288 ZR_DEVNAME(zr));
1289 res = -ENOMEM;
1290 goto open_unlock_and_return;
1291 }
1292 /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1293 * on norm-change! */
1294 fh->overlay_mask =
1295 kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1296 if (!fh->overlay_mask) {
1297 dprintk(1,
1298 KERN_ERR
1299 "%s: zoran_open() - allocation of overlay_mask failed\n",
1300 ZR_DEVNAME(zr));
1301 kfree(fh);
1302 res = -ENOMEM;
1303 goto open_unlock_and_return;
1304 }
1305
1306 if (zr->user++ == 0)
1307 first_open = 1;
1308
1309 /*mutex_unlock(&zr->resource_lock);*/
1310
1311 /* default setup - TODO: look at flags */
1312 if (first_open) { /* First device open */
1313 zr36057_restart(zr);
1314 zoran_open_init_params(zr);
1315 zoran_init_hardware(zr);
1316
1317 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1318 }
1319
1320 /* set file_ops stuff */
1321 file->private_data = fh;
1322 fh->zr = zr;
1323 zoran_open_init_session(file);
1324
1325 return 0;
1326
1327 open_unlock_and_return:
1328 /* if we grabbed locks, release them accordingly */
1329 if (have_module_locks) {
1330 module_put(zr->decoder->driver->driver.owner);
1331 if (zr->encoder) {
1332 module_put(zr->encoder->driver->driver.owner);
1333 }
1334 module_put(THIS_MODULE);
1335 }
1336
1337 /* if there's no device found, we didn't obtain the lock either */
1338 if (zr) {
1339 /*mutex_unlock(&zr->resource_lock);*/
1340 }
1341
1342 return res;
1343 }
1344
1345 static int
1346 zoran_close (struct inode *inode,
1347 struct file *file)
1348 {
1349 struct zoran_fh *fh = file->private_data;
1350 struct zoran *zr = fh->zr;
1351
1352 dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1353 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1354
1355 /* kernel locks (fs/device.c), so don't do that ourselves
1356 * (prevents deadlocks) */
1357 /*mutex_lock(&zr->resource_lock);*/
1358
1359 zoran_close_end_session(file);
1360
1361 if (zr->user-- == 1) { /* Last process */
1362 /* Clean up JPEG process */
1363 wake_up_interruptible(&zr->jpg_capq);
1364 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1365 zr->jpg_buffers.allocated = 0;
1366 zr->jpg_buffers.active = ZORAN_FREE;
1367
1368 /* disable interrupts */
1369 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1370
1371 if (zr36067_debug > 1)
1372 print_interrupts(zr);
1373
1374 /* Overlay off */
1375 zr->v4l_overlay_active = 0;
1376 zr36057_overlay(zr, 0);
1377 zr->overlay_mask = NULL;
1378
1379 /* capture off */
1380 wake_up_interruptible(&zr->v4l_capq);
1381 zr36057_set_memgrab(zr, 0);
1382 zr->v4l_buffers.allocated = 0;
1383 zr->v4l_buffers.active = ZORAN_FREE;
1384 zoran_set_pci_master(zr, 0);
1385
1386 if (!pass_through) { /* Switch to color bar */
1387 int zero = 0, two = 2;
1388 decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1389 encoder_command(zr, ENCODER_SET_INPUT, &two);
1390 }
1391 }
1392
1393 file->private_data = NULL;
1394 kfree(fh->overlay_mask);
1395 kfree(fh);
1396
1397 /* release locks on the i2c modules */
1398 module_put(zr->decoder->driver->driver.owner);
1399 if (zr->encoder) {
1400 module_put(zr->encoder->driver->driver.owner);
1401 }
1402 module_put(THIS_MODULE);
1403
1404 /*mutex_unlock(&zr->resource_lock);*/
1405
1406 dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1407
1408 return 0;
1409 }
1410
1411
1412 static ssize_t
1413 zoran_read (struct file *file,
1414 char __user *data,
1415 size_t count,
1416 loff_t *ppos)
1417 {
1418 /* we simply don't support read() (yet)... */
1419
1420 return -EINVAL;
1421 }
1422
1423 static ssize_t
1424 zoran_write (struct file *file,
1425 const char __user *data,
1426 size_t count,
1427 loff_t *ppos)
1428 {
1429 /* ...and the same goes for write() */
1430
1431 return -EINVAL;
1432 }
1433
1434 static int
1435 setup_fbuffer (struct file *file,
1436 void *base,
1437 const struct zoran_format *fmt,
1438 int width,
1439 int height,
1440 int bytesperline)
1441 {
1442 struct zoran_fh *fh = file->private_data;
1443 struct zoran *zr = fh->zr;
1444
1445 /* (Ronald) v4l/v4l2 guidelines */
1446 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1447 return -EPERM;
1448
1449 /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1450 ALi Magik (that needs very low latency while the card needs a
1451 higher value always) */
1452
1453 if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1454 return -ENXIO;
1455
1456 /* we need a bytesperline value, even if not given */
1457 if (!bytesperline)
1458 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1459
1460 #if 0
1461 if (zr->overlay_active) {
1462 /* dzjee... stupid users... don't even bother to turn off
1463 * overlay before changing the memory location...
1464 * normally, we would return errors here. However, one of
1465 * the tools that does this is... xawtv! and since xawtv
1466 * is used by +/- 99% of the users, we'd rather be user-
1467 * friendly and silently do as if nothing went wrong */
1468 dprintk(3,
1469 KERN_ERR
1470 "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1471 ZR_DEVNAME(zr));
1472 zr36057_overlay(zr, 0);
1473 }
1474 #endif
1475
1476 if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1477 dprintk(1,
1478 KERN_ERR
1479 "%s: setup_fbuffer() - no valid overlay format given\n",
1480 ZR_DEVNAME(zr));
1481 return -EINVAL;
1482 }
1483 if (height <= 0 || width <= 0 || bytesperline <= 0) {
1484 dprintk(1,
1485 KERN_ERR
1486 "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1487 ZR_DEVNAME(zr), width, height, bytesperline);
1488 return -EINVAL;
1489 }
1490 if (bytesperline & 3) {
1491 dprintk(1,
1492 KERN_ERR
1493 "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1494 ZR_DEVNAME(zr), bytesperline);
1495 return -EINVAL;
1496 }
1497
1498 zr->buffer.base = (void *) ((unsigned long) base & ~3);
1499 zr->buffer.height = height;
1500 zr->buffer.width = width;
1501 zr->buffer.depth = fmt->depth;
1502 zr->overlay_settings.format = fmt;
1503 zr->buffer.bytesperline = bytesperline;
1504
1505 /* The user should set new window parameters */
1506 zr->overlay_settings.is_set = 0;
1507
1508 return 0;
1509 }
1510
1511
1512 static int
1513 setup_window (struct file *file,
1514 int x,
1515 int y,
1516 int width,
1517 int height,
1518 struct video_clip __user *clips,
1519 int clipcount,
1520 void __user *bitmap)
1521 {
1522 struct zoran_fh *fh = file->private_data;
1523 struct zoran *zr = fh->zr;
1524 struct video_clip *vcp = NULL;
1525 int on, end;
1526
1527
1528 if (!zr->buffer.base) {
1529 dprintk(1,
1530 KERN_ERR
1531 "%s: setup_window() - frame buffer has to be set first\n",
1532 ZR_DEVNAME(zr));
1533 return -EINVAL;
1534 }
1535
1536 if (!fh->overlay_settings.format) {
1537 dprintk(1,
1538 KERN_ERR
1539 "%s: setup_window() - no overlay format set\n",
1540 ZR_DEVNAME(zr));
1541 return -EINVAL;
1542 }
1543
1544 /*
1545 * The video front end needs 4-byte alinged line sizes, we correct that
1546 * silently here if necessary
1547 */
1548 if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1549 end = (x + width) & ~1; /* round down */
1550 x = (x + 1) & ~1; /* round up */
1551 width = end - x;
1552 }
1553
1554 if (zr->buffer.depth == 24) {
1555 end = (x + width) & ~3; /* round down */
1556 x = (x + 3) & ~3; /* round up */
1557 width = end - x;
1558 }
1559
1560 if (width > BUZ_MAX_WIDTH)
1561 width = BUZ_MAX_WIDTH;
1562 if (height > BUZ_MAX_HEIGHT)
1563 height = BUZ_MAX_HEIGHT;
1564
1565 /* Check for vaild parameters */
1566 if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1567 width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1568 dprintk(1,
1569 KERN_ERR
1570 "%s: setup_window() - width = %d or height = %d invalid\n",
1571 ZR_DEVNAME(zr), width, height);
1572 return -EINVAL;
1573 }
1574
1575 fh->overlay_settings.x = x;
1576 fh->overlay_settings.y = y;
1577 fh->overlay_settings.width = width;
1578 fh->overlay_settings.height = height;
1579 fh->overlay_settings.clipcount = clipcount;
1580
1581 /*
1582 * If an overlay is running, we have to switch it off
1583 * and switch it on again in order to get the new settings in effect.
1584 *
1585 * We also want to avoid that the overlay mask is written
1586 * when an overlay is running.
1587 */
1588
1589 on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1590 zr->overlay_active != ZORAN_FREE &&
1591 fh->overlay_active != ZORAN_FREE;
1592 if (on)
1593 zr36057_overlay(zr, 0);
1594
1595 /*
1596 * Write the overlay mask if clips are wanted.
1597 * We prefer a bitmap.
1598 */
1599 if (bitmap) {
1600 /* fake value - it just means we want clips */
1601 fh->overlay_settings.clipcount = 1;
1602
1603 if (copy_from_user(fh->overlay_mask, bitmap,
1604 (width * height + 7) / 8)) {
1605 return -EFAULT;
1606 }
1607 } else if (clipcount > 0) {
1608 /* write our own bitmap from the clips */
1609 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1610 if (vcp == NULL) {
1611 dprintk(1,
1612 KERN_ERR
1613 "%s: setup_window() - Alloc of clip mask failed\n",
1614 ZR_DEVNAME(zr));
1615 return -ENOMEM;
1616 }
1617 if (copy_from_user
1618 (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1619 vfree(vcp);
1620 return -EFAULT;
1621 }
1622 write_overlay_mask(file, vcp, clipcount);
1623 vfree(vcp);
1624 }
1625
1626 fh->overlay_settings.is_set = 1;
1627 if (fh->overlay_active != ZORAN_FREE &&
1628 zr->overlay_active != ZORAN_FREE)
1629 zr->overlay_settings = fh->overlay_settings;
1630
1631 if (on)
1632 zr36057_overlay(zr, 1);
1633
1634 /* Make sure the changes come into effect */
1635 return wait_grab_pending(zr);
1636 }
1637
1638 static int
1639 setup_overlay (struct file *file,
1640 int on)
1641 {
1642 struct zoran_fh *fh = file->private_data;
1643 struct zoran *zr = fh->zr;
1644
1645 /* If there is nothing to do, return immediatly */
1646 if ((on && fh->overlay_active != ZORAN_FREE) ||
1647 (!on && fh->overlay_active == ZORAN_FREE))
1648 return 0;
1649
1650 /* check whether we're touching someone else's overlay */
1651 if (on && zr->overlay_active != ZORAN_FREE &&
1652 fh->overlay_active == ZORAN_FREE) {
1653 dprintk(1,
1654 KERN_ERR
1655 "%s: setup_overlay() - overlay is already active for another session\n",
1656 ZR_DEVNAME(zr));
1657 return -EBUSY;
1658 }
1659 if (!on && zr->overlay_active != ZORAN_FREE &&
1660 fh->overlay_active == ZORAN_FREE) {
1661 dprintk(1,
1662 KERN_ERR
1663 "%s: setup_overlay() - you cannot cancel someone else's session\n",
1664 ZR_DEVNAME(zr));
1665 return -EPERM;
1666 }
1667
1668 if (on == 0) {
1669 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1670 zr->v4l_overlay_active = 0;
1671 /* When a grab is running, the video simply
1672 * won't be switched on any more */
1673 if (!zr->v4l_memgrab_active)
1674 zr36057_overlay(zr, 0);
1675 zr->overlay_mask = NULL;
1676 } else {
1677 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1678 dprintk(1,
1679 KERN_ERR
1680 "%s: setup_overlay() - buffer or window not set\n",
1681 ZR_DEVNAME(zr));
1682 return -EINVAL;
1683 }
1684 if (!fh->overlay_settings.format) {
1685 dprintk(1,
1686 KERN_ERR
1687 "%s: setup_overlay() - no overlay format set\n",
1688 ZR_DEVNAME(zr));
1689 return -EINVAL;
1690 }
1691 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1692 zr->v4l_overlay_active = 1;
1693 zr->overlay_mask = fh->overlay_mask;
1694 zr->overlay_settings = fh->overlay_settings;
1695 if (!zr->v4l_memgrab_active)
1696 zr36057_overlay(zr, 1);
1697 /* When a grab is running, the video will be
1698 * switched on when grab is finished */
1699 }
1700
1701 /* Make sure the changes come into effect */
1702 return wait_grab_pending(zr);
1703 }
1704
1705 /* get the status of a buffer in the clients buffer queue */
1706 static int
1707 zoran_v4l2_buffer_status (struct file *file,
1708 struct v4l2_buffer *buf,
1709 int num)
1710 {
1711 struct zoran_fh *fh = file->private_data;
1712 struct zoran *zr = fh->zr;
1713
1714 buf->flags = V4L2_BUF_FLAG_MAPPED;
1715
1716 switch (fh->map_mode) {
1717 case ZORAN_MAP_MODE_RAW:
1718
1719 /* check range */
1720 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1721 !fh->v4l_buffers.allocated) {
1722 dprintk(1,
1723 KERN_ERR
1724 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1725 ZR_DEVNAME(zr));
1726 return -EINVAL;
1727 }
1728
1729 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1730 buf->length = fh->v4l_buffers.buffer_size;
1731
1732 /* get buffer */
1733 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1734 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1735 fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1736 buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1737 buf->flags |= V4L2_BUF_FLAG_DONE;
1738 buf->timestamp =
1739 fh->v4l_buffers.buffer[num].bs.timestamp;
1740 } else {
1741 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1742 }
1743
1744 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1745 buf->field = V4L2_FIELD_TOP;
1746 else
1747 buf->field = V4L2_FIELD_INTERLACED;
1748
1749 break;
1750
1751 case ZORAN_MAP_MODE_JPG_REC:
1752 case ZORAN_MAP_MODE_JPG_PLAY:
1753
1754 /* check range */
1755 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1756 !fh->jpg_buffers.allocated) {
1757 dprintk(1,
1758 KERN_ERR
1759 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1760 ZR_DEVNAME(zr));
1761 return -EINVAL;
1762 }
1763
1764 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1765 V4L2_BUF_TYPE_VIDEO_CAPTURE :
1766 V4L2_BUF_TYPE_VIDEO_OUTPUT;
1767 buf->length = fh->jpg_buffers.buffer_size;
1768
1769 /* these variables are only written after frame has been captured */
1770 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1771 fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1772 buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1773 buf->timestamp =
1774 fh->jpg_buffers.buffer[num].bs.timestamp;
1775 buf->bytesused =
1776 fh->jpg_buffers.buffer[num].bs.length;
1777 buf->flags |= V4L2_BUF_FLAG_DONE;
1778 } else {
1779 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1780 }
1781
1782 /* which fields are these? */
1783 if (fh->jpg_settings.TmpDcm != 1)
1784 buf->field =
1785 fh->jpg_settings.
1786 odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1787 else
1788 buf->field =
1789 fh->jpg_settings.
1790 odd_even ? V4L2_FIELD_SEQ_TB :
1791 V4L2_FIELD_SEQ_BT;
1792
1793 break;
1794
1795 default:
1796
1797 dprintk(5,
1798 KERN_ERR
1799 "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1800 ZR_DEVNAME(zr), buf->type, fh->map_mode);
1801 return -EINVAL;
1802 }
1803
1804 buf->memory = V4L2_MEMORY_MMAP;
1805 buf->index = num;
1806 buf->m.offset = buf->length * num;
1807
1808 return 0;
1809 }
1810
1811 static int
1812 zoran_set_norm (struct zoran *zr,
1813 int norm) /* VIDEO_MODE_* */
1814 {
1815 int norm_encoder, on;
1816
1817 if (zr->v4l_buffers.active != ZORAN_FREE ||
1818 zr->jpg_buffers.active != ZORAN_FREE) {
1819 dprintk(1,
1820 KERN_WARNING
1821 "%s: set_norm() called while in playback/capture mode\n",
1822 ZR_DEVNAME(zr));
1823 return -EBUSY;
1824 }
1825
1826 if (lock_norm && norm != zr->norm) {
1827 if (lock_norm > 1) {
1828 dprintk(1,
1829 KERN_WARNING
1830 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1831 ZR_DEVNAME(zr));
1832 return -EPERM;
1833 } else {
1834 dprintk(1,
1835 KERN_WARNING
1836 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1837 ZR_DEVNAME(zr));
1838 norm = zr->norm;
1839 }
1840 }
1841
1842 if (norm != VIDEO_MODE_AUTO &&
1843 (norm < 0 || norm >= zr->card.norms ||
1844 !zr->card.tvn[norm])) {
1845 dprintk(1,
1846 KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1847 ZR_DEVNAME(zr), norm);
1848 return -EINVAL;
1849 }
1850
1851 if (norm == VIDEO_MODE_AUTO) {
1852 int status;
1853
1854 /* if we have autodetect, ... */
1855 struct video_decoder_capability caps;
1856 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1857 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1858 dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1859 ZR_DEVNAME(zr));
1860 return -EINVAL;
1861 }
1862
1863 decoder_command(zr, DECODER_SET_NORM, &norm);
1864
1865 /* let changes come into effect */
1866 ssleep(2);
1867
1868 decoder_command(zr, DECODER_GET_STATUS, &status);
1869 if (!(status & DECODER_STATUS_GOOD)) {
1870 dprintk(1,
1871 KERN_ERR
1872 "%s: set_norm() - no norm detected\n",
1873 ZR_DEVNAME(zr));
1874 /* reset norm */
1875 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1876 return -EIO;
1877 }
1878
1879 if (status & DECODER_STATUS_NTSC)
1880 norm = VIDEO_MODE_NTSC;
1881 else if (status & DECODER_STATUS_SECAM)
1882 norm = VIDEO_MODE_SECAM;
1883 else
1884 norm = VIDEO_MODE_PAL;
1885 }
1886 zr->timing = zr->card.tvn[norm];
1887 norm_encoder = norm;
1888
1889 /* We switch overlay off and on since a change in the
1890 * norm needs different VFE settings */
1891 on = zr->overlay_active && !zr->v4l_memgrab_active;
1892 if (on)
1893 zr36057_overlay(zr, 0);
1894
1895 decoder_command(zr, DECODER_SET_NORM, &norm);
1896 encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1897
1898 if (on)
1899 zr36057_overlay(zr, 1);
1900
1901 /* Make sure the changes come into effect */
1902 zr->norm = norm;
1903
1904 return 0;
1905 }
1906
1907 static int
1908 zoran_set_input (struct zoran *zr,
1909 int input)
1910 {
1911 int realinput;
1912
1913 if (input == zr->input) {
1914 return 0;
1915 }
1916
1917 if (zr->v4l_buffers.active != ZORAN_FREE ||
1918 zr->jpg_buffers.active != ZORAN_FREE) {
1919 dprintk(1,
1920 KERN_WARNING
1921 "%s: set_input() called while in playback/capture mode\n",
1922 ZR_DEVNAME(zr));
1923 return -EBUSY;
1924 }
1925
1926 if (input < 0 || input >= zr->card.inputs) {
1927 dprintk(1,
1928 KERN_ERR
1929 "%s: set_input() - unnsupported input %d\n",
1930 ZR_DEVNAME(zr), input);
1931 return -EINVAL;
1932 }
1933
1934 realinput = zr->card.input[input].muxsel;
1935 zr->input = input;
1936
1937 decoder_command(zr, DECODER_SET_INPUT, &realinput);
1938
1939 return 0;
1940 }
1941
1942 /*
1943 * ioctl routine
1944 */
1945
1946 static int
1947 zoran_do_ioctl (struct inode *inode,
1948 struct file *file,
1949 unsigned int cmd,
1950 void *arg)
1951 {
1952 struct zoran_fh *fh = file->private_data;
1953 struct zoran *zr = fh->zr;
1954 /* CAREFUL: used in multiple places here */
1955 struct zoran_jpg_settings settings;
1956
1957 /* we might have older buffers lying around... We don't want
1958 * to wait, but we do want to try cleaning them up ASAP. So
1959 * we try to obtain the lock and free them. If that fails, we
1960 * don't do anything and wait for the next turn. In the end,
1961 * zoran_close() or a new allocation will still free them...
1962 * This is just a 'the sooner the better' extra 'feature'
1963 *
1964 * We don't free the buffers right on munmap() because that
1965 * causes oopses (kfree() inside munmap() oopses for no
1966 * apparent reason - it's also not reproduceable in any way,
1967 * but moving the free code outside the munmap() handler fixes
1968 * all this... If someone knows why, please explain me (Ronald)
1969 */
1970 if (mutex_trylock(&zr->resource_lock)) {
1971 /* we obtained it! Let's try to free some things */
1972 if (fh->jpg_buffers.ready_to_be_freed)
1973 jpg_fbuffer_free(file);
1974 if (fh->v4l_buffers.ready_to_be_freed)
1975 v4l_fbuffer_free(file);
1976
1977 mutex_unlock(&zr->resource_lock);
1978 }
1979
1980 switch (cmd) {
1981
1982 case VIDIOCGCAP:
1983 {
1984 struct video_capability *vcap = arg;
1985
1986 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1987
1988 memset(vcap, 0, sizeof(struct video_capability));
1989 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
1990 vcap->type = ZORAN_VID_TYPE;
1991
1992 vcap->channels = zr->card.inputs;
1993 vcap->audios = 0;
1994 mutex_lock(&zr->resource_lock);
1995 vcap->maxwidth = BUZ_MAX_WIDTH;
1996 vcap->maxheight = BUZ_MAX_HEIGHT;
1997 vcap->minwidth = BUZ_MIN_WIDTH;
1998 vcap->minheight = BUZ_MIN_HEIGHT;
1999 mutex_unlock(&zr->resource_lock);
2000
2001 return 0;
2002 }
2003 break;
2004
2005 case VIDIOCGCHAN:
2006 {
2007 struct video_channel *vchan = arg;
2008 int channel = vchan->channel;
2009
2010 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2011 ZR_DEVNAME(zr), vchan->channel);
2012
2013 memset(vchan, 0, sizeof(struct video_channel));
2014 if (channel > zr->card.inputs || channel < 0) {
2015 dprintk(1,
2016 KERN_ERR
2017 "%s: VIDIOCGCHAN on not existing channel %d\n",
2018 ZR_DEVNAME(zr), channel);
2019 return -EINVAL;
2020 }
2021
2022 strcpy(vchan->name, zr->card.input[channel].name);
2023
2024 vchan->tuners = 0;
2025 vchan->flags = 0;
2026 vchan->type = VIDEO_TYPE_CAMERA;
2027 mutex_lock(&zr->resource_lock);
2028 vchan->norm = zr->norm;
2029 mutex_unlock(&zr->resource_lock);
2030 vchan->channel = channel;
2031
2032 return 0;
2033 }
2034 break;
2035
2036 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2037 *
2038 * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2039 * * ^^^^^^^
2040 * * The famos BTTV driver has it implemented with a struct video_channel argument
2041 * * and we follow it for compatibility reasons
2042 * *
2043 * * BTW: this is the only way the user can set the norm!
2044 */
2045
2046 case VIDIOCSCHAN:
2047 {
2048 struct video_channel *vchan = arg;
2049 int res;
2050
2051 dprintk(3,
2052 KERN_DEBUG
2053 "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2054 ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2055
2056 mutex_lock(&zr->resource_lock);
2057 if ((res = zoran_set_input(zr, vchan->channel)))
2058 goto schan_unlock_and_return;
2059 if ((res = zoran_set_norm(zr, vchan->norm)))
2060 goto schan_unlock_and_return;
2061
2062 /* Make sure the changes come into effect */
2063 res = wait_grab_pending(zr);
2064 schan_unlock_and_return:
2065 mutex_unlock(&zr->resource_lock);
2066 return res;
2067 }
2068 break;
2069
2070 case VIDIOCGPICT:
2071 {
2072 struct video_picture *vpict = arg;
2073
2074 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2075
2076 memset(vpict, 0, sizeof(struct video_picture));
2077 mutex_lock(&zr->resource_lock);
2078 vpict->hue = zr->hue;
2079 vpict->brightness = zr->brightness;
2080 vpict->contrast = zr->contrast;
2081 vpict->colour = zr->saturation;
2082 if (fh->overlay_settings.format) {
2083 vpict->depth = fh->overlay_settings.format->depth;
2084 vpict->palette = fh->overlay_settings.format->palette;
2085 } else {
2086 vpict->depth = 0;
2087 }
2088 mutex_unlock(&zr->resource_lock);
2089
2090 return 0;
2091 }
2092 break;
2093
2094 case VIDIOCSPICT:
2095 {
2096 struct video_picture *vpict = arg;
2097 int i;
2098
2099 dprintk(3,
2100 KERN_DEBUG
2101 "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2102 ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2103 vpict->colour, vpict->contrast, vpict->depth,
2104 vpict->palette);
2105
2106 for (i = 0; i < NUM_FORMATS; i++) {
2107 const struct zoran_format *fmt = &zoran_formats[i];
2108
2109 if (fmt->palette != -1 &&
2110 fmt->flags & ZORAN_FORMAT_OVERLAY &&
2111 fmt->palette == vpict->palette &&
2112 fmt->depth == vpict->depth)
2113 break;
2114 }
2115 if (i == NUM_FORMATS) {
2116 dprintk(1,
2117 KERN_ERR
2118 "%s: VIDIOCSPICT - Invalid palette %d\n",
2119 ZR_DEVNAME(zr), vpict->palette);
2120 return -EINVAL;
2121 }
2122
2123 mutex_lock(&zr->resource_lock);
2124
2125 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2126
2127 zr->hue = vpict->hue;
2128 zr->contrast = vpict->contrast;
2129 zr->saturation = vpict->colour;
2130 zr->brightness = vpict->brightness;
2131
2132 fh->overlay_settings.format = &zoran_formats[i];
2133
2134 mutex_unlock(&zr->resource_lock);
2135
2136 return 0;
2137 }
2138 break;
2139
2140 case VIDIOCCAPTURE:
2141 {
2142 int *on = arg, res;
2143
2144 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2145 ZR_DEVNAME(zr), *on);
2146
2147 mutex_lock(&zr->resource_lock);
2148 res = setup_overlay(file, *on);
2149 mutex_unlock(&zr->resource_lock);
2150
2151 return res;
2152 }
2153 break;
2154
2155 case VIDIOCGWIN:
2156 {
2157 struct video_window *vwin = arg;
2158
2159 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2160
2161 memset(vwin, 0, sizeof(struct video_window));
2162 mutex_lock(&zr->resource_lock);
2163 vwin->x = fh->overlay_settings.x;
2164 vwin->y = fh->overlay_settings.y;
2165 vwin->width = fh->overlay_settings.width;
2166 vwin->height = fh->overlay_settings.height;
2167 mutex_unlock(&zr->resource_lock);
2168 vwin->clipcount = 0;
2169 return 0;
2170 }
2171 break;
2172
2173 case VIDIOCSWIN:
2174 {
2175 struct video_window *vwin = arg;
2176 int res;
2177
2178 dprintk(3,
2179 KERN_DEBUG
2180 "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2181 ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2182 vwin->height, vwin->clipcount);
2183
2184 mutex_lock(&zr->resource_lock);
2185 res =
2186 setup_window(file, vwin->x, vwin->y, vwin->width,
2187 vwin->height, vwin->clips,
2188 vwin->clipcount, NULL);
2189 mutex_unlock(&zr->resource_lock);
2190
2191 return res;
2192 }
2193 break;
2194
2195 case VIDIOCGFBUF:
2196 {
2197 struct video_buffer *vbuf = arg;
2198
2199 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2200
2201 mutex_lock(&zr->resource_lock);
2202 *vbuf = zr->buffer;
2203 mutex_unlock(&zr->resource_lock);
2204 return 0;
2205 }
2206 break;
2207
2208 case VIDIOCSFBUF:
2209 {
2210 struct video_buffer *vbuf = arg;
2211 int i, res = 0;
2212
2213 dprintk(3,
2214 KERN_DEBUG
2215 "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2216 ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2217 vbuf->height, vbuf->depth, vbuf->bytesperline);
2218
2219 for (i = 0; i < NUM_FORMATS; i++)
2220 if (zoran_formats[i].depth == vbuf->depth)
2221 break;
2222 if (i == NUM_FORMATS) {
2223 dprintk(1,
2224 KERN_ERR
2225 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2226 ZR_DEVNAME(zr), vbuf->depth);
2227 return -EINVAL;
2228 }
2229
2230 mutex_lock(&zr->resource_lock);
2231 res =
2232 setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2233 vbuf->width, vbuf->height,
2234 vbuf->bytesperline);
2235 mutex_unlock(&zr->resource_lock);
2236
2237 return res;
2238 }
2239 break;
2240
2241 case VIDIOCSYNC:
2242 {
2243 int *frame = arg, res;
2244
2245 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2246 ZR_DEVNAME(zr), *frame);
2247
2248 mutex_lock(&zr->resource_lock);
2249 res = v4l_sync(file, *frame);
2250 mutex_unlock(&zr->resource_lock);
2251 if (!res)
2252 zr->v4l_sync_tail++;
2253 return res;
2254 }
2255 break;
2256
2257 case VIDIOCMCAPTURE:
2258 {
2259 struct video_mmap *vmap = arg;
2260 int res;
2261
2262 dprintk(3,
2263 KERN_DEBUG
2264 "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2265 ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2266 vmap->format);
2267
2268 mutex_lock(&zr->resource_lock);
2269 res = v4l_grab(file, vmap);
2270 mutex_unlock(&zr->resource_lock);
2271 return res;
2272 }
2273 break;
2274
2275 case VIDIOCGMBUF:
2276 {
2277 struct video_mbuf *vmbuf = arg;
2278 int i, res = 0;
2279
2280 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2281
2282 vmbuf->size =
2283 fh->v4l_buffers.num_buffers *
2284 fh->v4l_buffers.buffer_size;
2285 vmbuf->frames = fh->v4l_buffers.num_buffers;
2286 for (i = 0; i < vmbuf->frames; i++) {
2287 vmbuf->offsets[i] =
2288 i * fh->v4l_buffers.buffer_size;
2289 }
2290
2291 mutex_lock(&zr->resource_lock);
2292
2293 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2294 dprintk(1,
2295 KERN_ERR
2296 "%s: VIDIOCGMBUF - buffers already allocated\n",
2297 ZR_DEVNAME(zr));
2298 res = -EINVAL;
2299 goto v4l1reqbuf_unlock_and_return;
2300 }
2301
2302 if (v4l_fbuffer_alloc(file)) {
2303 res = -ENOMEM;
2304 goto v4l1reqbuf_unlock_and_return;
2305 }
2306
2307 /* The next mmap will map the V4L buffers */
2308 fh->map_mode = ZORAN_MAP_MODE_RAW;
2309 v4l1reqbuf_unlock_and_return:
2310 mutex_unlock(&zr->resource_lock);
2311
2312 return res;
2313 }
2314 break;
2315
2316 case VIDIOCGUNIT:
2317 {
2318 struct video_unit *vunit = arg;
2319
2320 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2321
2322 vunit->video = zr->video_dev->minor;
2323 vunit->vbi = VIDEO_NO_UNIT;
2324 vunit->radio = VIDEO_NO_UNIT;
2325 vunit->audio = VIDEO_NO_UNIT;
2326 vunit->teletext = VIDEO_NO_UNIT;
2327
2328 return 0;
2329 }
2330 break;
2331
2332 /*
2333 * RJ: In principal we could support subcaptures for V4L grabbing.
2334 * Not even the famous BTTV driver has them, however.
2335 * If there should be a strong demand, one could consider
2336 * to implement them.
2337 */
2338 case VIDIOCGCAPTURE:
2339 {
2340 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2341 ZR_DEVNAME(zr));
2342 return -EINVAL;
2343 }
2344 break;
2345
2346 case VIDIOCSCAPTURE:
2347 {
2348 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2349 ZR_DEVNAME(zr));
2350 return -EINVAL;
2351 }
2352 break;
2353
2354 case BUZIOC_G_PARAMS:
2355 {
2356 struct zoran_params *bparams = arg;
2357
2358 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2359
2360 memset(bparams, 0, sizeof(struct zoran_params));
2361 bparams->major_version = MAJOR_VERSION;
2362 bparams->minor_version = MINOR_VERSION;
2363
2364 mutex_lock(&zr->resource_lock);
2365
2366 bparams->norm = zr->norm;
2367 bparams->input = zr->input;
2368
2369 bparams->decimation = fh->jpg_settings.decimation;
2370 bparams->HorDcm = fh->jpg_settings.HorDcm;
2371 bparams->VerDcm = fh->jpg_settings.VerDcm;
2372 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2373 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2374 bparams->img_x = fh->jpg_settings.img_x;
2375 bparams->img_y = fh->jpg_settings.img_y;
2376 bparams->img_width = fh->jpg_settings.img_width;
2377 bparams->img_height = fh->jpg_settings.img_height;
2378 bparams->odd_even = fh->jpg_settings.odd_even;
2379
2380 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2381 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2382 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2383 memcpy(bparams->APP_data,
2384 fh->jpg_settings.jpg_comp.APP_data,
2385 sizeof(bparams->APP_data));
2386 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2387 memcpy(bparams->COM_data,
2388 fh->jpg_settings.jpg_comp.COM_data,
2389 sizeof(bparams->COM_data));
2390 bparams->jpeg_markers =
2391 fh->jpg_settings.jpg_comp.jpeg_markers;
2392
2393 mutex_unlock(&zr->resource_lock);
2394
2395 bparams->VFIFO_FB = 0;
2396
2397 return 0;
2398 }
2399 break;
2400
2401 case BUZIOC_S_PARAMS:
2402 {
2403 struct zoran_params *bparams = arg;
2404 int res = 0;
2405
2406 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2407
2408 settings.decimation = bparams->decimation;
2409 settings.HorDcm = bparams->HorDcm;
2410 settings.VerDcm = bparams->VerDcm;
2411 settings.TmpDcm = bparams->TmpDcm;
2412 settings.field_per_buff = bparams->field_per_buff;
2413 settings.img_x = bparams->img_x;
2414 settings.img_y = bparams->img_y;
2415 settings.img_width = bparams->img_width;
2416 settings.img_height = bparams->img_height;
2417 settings.odd_even = bparams->odd_even;
2418
2419 settings.jpg_comp.quality = bparams->quality;
2420 settings.jpg_comp.APPn = bparams->APPn;
2421 settings.jpg_comp.APP_len = bparams->APP_len;
2422 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2423 sizeof(bparams->APP_data));
2424 settings.jpg_comp.COM_len = bparams->COM_len;
2425 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2426 sizeof(bparams->COM_data));
2427 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2428
2429 mutex_lock(&zr->resource_lock);
2430
2431 if (zr->codec_mode != BUZ_MODE_IDLE) {
2432 dprintk(1,
2433 KERN_ERR
2434 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2435 ZR_DEVNAME(zr));
2436 res = -EINVAL;
2437 goto sparams_unlock_and_return;
2438 }
2439
2440 /* Check the params first before overwriting our
2441 * nternal values */
2442 if (zoran_check_jpg_settings(zr, &settings)) {
2443 res = -EINVAL;
2444 goto sparams_unlock_and_return;
2445 }
2446
2447 fh->jpg_settings = settings;
2448 sparams_unlock_and_return:
2449 mutex_unlock(&zr->resource_lock);
2450
2451 return res;
2452 }
2453 break;
2454
2455 case BUZIOC_REQBUFS:
2456 {
2457 struct zoran_requestbuffers *breq = arg;
2458 int res = 0;
2459
2460 dprintk(3,
2461 KERN_DEBUG
2462 "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2463 ZR_DEVNAME(zr), breq->count, breq->size);
2464
2465 /* Enforce reasonable lower and upper limits */
2466 if (breq->count < 4)
2467 breq->count = 4; /* Could be choosen smaller */
2468 if (breq->count > jpg_nbufs)
2469 breq->count = jpg_nbufs;
2470 breq->size = PAGE_ALIGN(breq->size);
2471 if (breq->size < 8192)
2472 breq->size = 8192; /* Arbitrary */
2473 /* breq->size is limited by 1 page for the stat_com
2474 * tables to a Maximum of 2 MB */
2475 if (breq->size > jpg_bufsize)
2476 breq->size = jpg_bufsize;
2477 if (fh->jpg_buffers.need_contiguous &&
2478 breq->size > MAX_KMALLOC_MEM)
2479 breq->size = MAX_KMALLOC_MEM;
2480
2481 mutex_lock(&zr->resource_lock);
2482
2483 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2484 dprintk(1,
2485 KERN_ERR
2486 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2487 ZR_DEVNAME(zr));
2488 res = -EBUSY;
2489 goto jpgreqbuf_unlock_and_return;
2490 }
2491
2492 fh->jpg_buffers.num_buffers = breq->count;
2493 fh->jpg_buffers.buffer_size = breq->size;
2494
2495 if (jpg_fbuffer_alloc(file)) {
2496 res = -ENOMEM;
2497 goto jpgreqbuf_unlock_and_return;
2498 }
2499
2500 /* The next mmap will map the MJPEG buffers - could
2501 * also be *_PLAY, but it doesn't matter here */
2502 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2503 jpgreqbuf_unlock_and_return:
2504 mutex_unlock(&zr->resource_lock);
2505
2506 return res;
2507 }
2508 break;
2509
2510 case BUZIOC_QBUF_CAPT:
2511 {
2512 int *frame = arg, res;
2513
2514 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2515 ZR_DEVNAME(zr), *frame);
2516
2517 mutex_lock(&zr->resource_lock);
2518 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2519 mutex_unlock(&zr->resource_lock);
2520
2521 return res;
2522 }
2523 break;
2524
2525 case BUZIOC_QBUF_PLAY:
2526 {
2527 int *frame = arg, res;
2528
2529 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2530 ZR_DEVNAME(zr), *frame);
2531
2532 mutex_lock(&zr->resource_lock);
2533 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2534 mutex_unlock(&zr->resource_lock);
2535
2536 return res;
2537 }
2538 break;
2539
2540 case BUZIOC_SYNC:
2541 {
2542 struct zoran_sync *bsync = arg;
2543 int res;
2544
2545 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2546
2547 mutex_lock(&zr->resource_lock);
2548 res = jpg_sync(file, bsync);
2549 mutex_unlock(&zr->resource_lock);
2550
2551 return res;
2552 }
2553 break;
2554
2555 case BUZIOC_G_STATUS:
2556 {
2557 struct zoran_status *bstat = arg;
2558 int norm, input, status, res = 0;
2559
2560 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2561
2562 if (zr->codec_mode != BUZ_MODE_IDLE) {
2563 dprintk(1,
2564 KERN_ERR
2565 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2566 ZR_DEVNAME(zr));
2567 return -EINVAL;
2568 }
2569
2570 input = zr->card.input[bstat->input].muxsel;
2571 norm = VIDEO_MODE_AUTO;
2572
2573 mutex_lock(&zr->resource_lock);
2574
2575 if (zr->codec_mode != BUZ_MODE_IDLE) {
2576 dprintk(1,
2577 KERN_ERR
2578 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2579 ZR_DEVNAME(zr));
2580 res = -EINVAL;
2581 goto gstat_unlock_and_return;
2582 }
2583
2584 decoder_command(zr, DECODER_SET_INPUT, &input);
2585 decoder_command(zr, DECODER_SET_NORM, &norm);
2586
2587 /* sleep 1 second */
2588 ssleep(1);
2589
2590 /* Get status of video decoder */
2591 decoder_command(zr, DECODER_GET_STATUS, &status);
2592
2593 /* restore previous input and norm */
2594 input = zr->card.input[zr->input].muxsel;
2595 decoder_command(zr, DECODER_SET_INPUT, &input);
2596 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2597 gstat_unlock_and_return:
2598 mutex_unlock(&zr->resource_lock);
2599
2600 if (!res) {
2601 bstat->signal =
2602 (status & DECODER_STATUS_GOOD) ? 1 : 0;
2603 if (status & DECODER_STATUS_NTSC)
2604 bstat->norm = VIDEO_MODE_NTSC;
2605 else if (status & DECODER_STATUS_SECAM)
2606 bstat->norm = VIDEO_MODE_SECAM;
2607 else
2608 bstat->norm = VIDEO_MODE_PAL;
2609
2610 bstat->color =
2611 (status & DECODER_STATUS_COLOR) ? 1 : 0;
2612 }
2613
2614 return res;
2615 }
2616 break;
2617
2618 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2619 * it allows for integrating the JPEG capturing calls inside standard v4l2
2620 */
2621
2622 case VIDIOC_QUERYCAP:
2623 {
2624 struct v4l2_capability *cap = arg;
2625
2626 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2627
2628 memset(cap, 0, sizeof(*cap));
2629 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2630 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2631 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2632 pci_name(zr->pci_dev));
2633 cap->version =
2634 KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2635 RELEASE_VERSION);
2636 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2637
2638 return 0;
2639 }
2640 break;
2641
2642 case VIDIOC_ENUM_FMT:
2643 {
2644 struct v4l2_fmtdesc *fmt = arg;
2645 int index = fmt->index, num = -1, i, flag = 0, type =
2646 fmt->type;
2647
2648 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2649 ZR_DEVNAME(zr), fmt->index);
2650
2651 switch (fmt->type) {
2652 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2653 flag = ZORAN_FORMAT_CAPTURE;
2654 break;
2655 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2656 flag = ZORAN_FORMAT_PLAYBACK;
2657 break;
2658 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2659 flag = ZORAN_FORMAT_OVERLAY;
2660 break;
2661 default:
2662 dprintk(1,
2663 KERN_ERR
2664 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2665 ZR_DEVNAME(zr), fmt->type);
2666 return -EINVAL;
2667 }
2668
2669 for (i = 0; i < NUM_FORMATS; i++) {
2670 if (zoran_formats[i].flags & flag)
2671 num++;
2672 if (num == fmt->index)
2673 break;
2674 }
2675 if (fmt->index < 0 /* late, but not too late */ ||
2676 i == NUM_FORMATS)
2677 return -EINVAL;
2678
2679 memset(fmt, 0, sizeof(*fmt));
2680 fmt->index = index;
2681 fmt->type = type;
2682 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2683 fmt->pixelformat = zoran_formats[i].fourcc;
2684 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2685 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2686
2687 return 0;
2688 }
2689 break;
2690
2691 case VIDIOC_G_FMT:
2692 {
2693 struct v4l2_format *fmt = arg;
2694 int type = fmt->type;
2695
2696 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2697
2698 memset(fmt, 0, sizeof(*fmt));
2699 fmt->type = type;
2700
2701 switch (fmt->type) {
2702 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2703
2704 mutex_lock(&zr->resource_lock);
2705
2706 fmt->fmt.win.w.left = fh->overlay_settings.x;
2707 fmt->fmt.win.w.top = fh->overlay_settings.y;
2708 fmt->fmt.win.w.width = fh->overlay_settings.width;
2709 fmt->fmt.win.w.height =
2710 fh->overlay_settings.height;
2711 if (fh->overlay_settings.width * 2 >
2712 BUZ_MAX_HEIGHT)
2713 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2714 else
2715 fmt->fmt.win.field = V4L2_FIELD_TOP;
2716
2717 mutex_unlock(&zr->resource_lock);
2718
2719 break;
2720
2721 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2722 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2723
2724 mutex_lock(&zr->resource_lock);
2725
2726 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2727 fh->map_mode == ZORAN_MAP_MODE_RAW) {
2728
2729 fmt->fmt.pix.width =
2730 fh->v4l_settings.width;
2731 fmt->fmt.pix.height =
2732 fh->v4l_settings.height;
2733 fmt->fmt.pix.sizeimage =
2734 fh->v4l_settings.bytesperline *
2735 fh->v4l_settings.height;
2736 fmt->fmt.pix.pixelformat =
2737 fh->v4l_settings.format->fourcc;
2738 fmt->fmt.pix.colorspace =
2739 fh->v4l_settings.format->colorspace;
2740 fmt->fmt.pix.bytesperline = 0;
2741 if (BUZ_MAX_HEIGHT <
2742 (fh->v4l_settings.height * 2))
2743 fmt->fmt.pix.field =
2744 V4L2_FIELD_INTERLACED;
2745 else
2746 fmt->fmt.pix.field =
2747 V4L2_FIELD_TOP;
2748
2749 } else {
2750
2751 fmt->fmt.pix.width =
2752 fh->jpg_settings.img_width /
2753 fh->jpg_settings.HorDcm;
2754 fmt->fmt.pix.height =
2755 fh->jpg_settings.img_height /
2756 (fh->jpg_settings.VerDcm *
2757 fh->jpg_settings.TmpDcm);
2758 fmt->fmt.pix.sizeimage =
2759 zoran_v4l2_calc_bufsize(&fh->
2760 jpg_settings);
2761 fmt->fmt.pix.pixelformat =
2762 V4L2_PIX_FMT_MJPEG;
2763 if (fh->jpg_settings.TmpDcm == 1)
2764 fmt->fmt.pix.field =
2765 (fh->jpg_settings.
2766 odd_even ? V4L2_FIELD_SEQ_BT :
2767 V4L2_FIELD_SEQ_BT);
2768 else
2769 fmt->fmt.pix.field =
2770 (fh->jpg_settings.
2771 odd_even ? V4L2_FIELD_TOP :
2772 V4L2_FIELD_BOTTOM);
2773
2774 fmt->fmt.pix.bytesperline = 0;
2775 fmt->fmt.pix.colorspace =
2776 V4L2_COLORSPACE_SMPTE170M;
2777 }
2778
2779 mutex_unlock(&zr->resource_lock);
2780
2781 break;
2782
2783 default:
2784 dprintk(1,
2785 KERN_ERR
2786 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2787 ZR_DEVNAME(zr), fmt->type);
2788 return -EINVAL;
2789 }
2790 return 0;
2791 }
2792 break;
2793
2794 case VIDIOC_S_FMT:
2795 {
2796 struct v4l2_format *fmt = arg;
2797 int i, res = 0;
2798 __u32 printformat;
2799
2800 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2801 ZR_DEVNAME(zr), fmt->type);
2802
2803 switch (fmt->type) {
2804 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2805
2806 dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2807 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2808 fmt->fmt.win.w.width,
2809 fmt->fmt.win.w.height,
2810 fmt->fmt.win.clipcount,
2811 fmt->fmt.win.bitmap);
2812 mutex_lock(&zr->resource_lock);
2813 res =
2814 setup_window(file, fmt->fmt.win.w.left,
2815 fmt->fmt.win.w.top,
2816 fmt->fmt.win.w.width,
2817 fmt->fmt.win.w.height,
2818 (struct video_clip __user *)
2819 fmt->fmt.win.clips,
2820 fmt->fmt.win.clipcount,
2821 fmt->fmt.win.bitmap);
2822 mutex_unlock(&zr->resource_lock);
2823 return res;
2824 break;
2825
2826 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2827 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2828
2829 printformat =
2830 __cpu_to_le32(fmt->fmt.pix.pixelformat);
2831 dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2832 fmt->fmt.pix.width, fmt->fmt.pix.height,
2833 fmt->fmt.pix.pixelformat,
2834 (char *) &printformat);
2835
2836 if (fmt->fmt.pix.bytesperline > 0) {
2837 dprintk(5,
2838 KERN_ERR "%s: bpl not supported\n",
2839 ZR_DEVNAME(zr));
2840 return -EINVAL;
2841 }
2842
2843 /* we can be requested to do JPEG/raw playback/capture */
2844 if (!
2845 (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2846 (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2847 fmt->fmt.pix.pixelformat ==
2848 V4L2_PIX_FMT_MJPEG))) {
2849 dprintk(1,
2850 KERN_ERR
2851 "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2852 ZR_DEVNAME(zr), fmt->type,
2853 fmt->fmt.pix.pixelformat,
2854 (char *) &printformat);
2855 return -EINVAL;
2856 }
2857
2858 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2859 mutex_lock(&zr->resource_lock);
2860
2861 settings = fh->jpg_settings;
2862
2863 if (fh->v4l_buffers.allocated ||
2864 fh->jpg_buffers.allocated) {
2865 dprintk(1,
2866 KERN_ERR
2867 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2868 ZR_DEVNAME(zr));
2869 res = -EBUSY;
2870 goto sfmtjpg_unlock_and_return;
2871 }
2872
2873 /* we actually need to set 'real' parameters now */
2874 if ((fmt->fmt.pix.height * 2) >
2875 BUZ_MAX_HEIGHT)
2876 settings.TmpDcm = 1;
2877 else
2878 settings.TmpDcm = 2;
2879 settings.decimation = 0;
2880 if (fmt->fmt.pix.height <=
2881 fh->jpg_settings.img_height / 2)
2882 settings.VerDcm = 2;
2883 else
2884 settings.VerDcm = 1;
2885 if (fmt->fmt.pix.width <=
2886 fh->jpg_settings.img_width / 4)
2887 settings.HorDcm = 4;
2888 else if (fmt->fmt.pix.width <=
2889 fh->jpg_settings.img_width / 2)
2890 settings.HorDcm = 2;
2891 else
2892 settings.HorDcm = 1;
2893 if (settings.TmpDcm == 1)
2894 settings.field_per_buff = 2;
2895 else
2896 settings.field_per_buff = 1;
2897
2898 /* check */
2899 if ((res =
2900 zoran_check_jpg_settings(zr,
2901 &settings)))
2902 goto sfmtjpg_unlock_and_return;
2903
2904 /* it's ok, so set them */
2905 fh->jpg_settings = settings;
2906
2907 /* tell the user what we actually did */
2908 fmt->fmt.pix.width =
2909 settings.img_width / settings.HorDcm;
2910 fmt->fmt.pix.height =
2911 settings.img_height * 2 /
2912 (settings.TmpDcm * settings.VerDcm);
2913 if (settings.TmpDcm == 1)
2914 fmt->fmt.pix.field =
2915 (fh->jpg_settings.
2916 odd_even ? V4L2_FIELD_SEQ_TB :
2917 V4L2_FIELD_SEQ_BT);
2918 else
2919 fmt->fmt.pix.field =
2920 (fh->jpg_settings.
2921 odd_even ? V4L2_FIELD_TOP :
2922 V4L2_FIELD_BOTTOM);
2923 fh->jpg_buffers.buffer_size =
2924 zoran_v4l2_calc_bufsize(&fh->
2925 jpg_settings);
2926 fmt->fmt.pix.sizeimage =
2927 fh->jpg_buffers.buffer_size;
2928
2929 /* we hereby abuse this variable to show that
2930 * we're gonna do mjpeg capture */
2931 fh->map_mode =
2932 (fmt->type ==
2933 V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2934 ZORAN_MAP_MODE_JPG_REC :
2935 ZORAN_MAP_MODE_JPG_PLAY;
2936 sfmtjpg_unlock_and_return:
2937 mutex_unlock(&zr->resource_lock);
2938 } else {
2939 for (i = 0; i < NUM_FORMATS; i++)
2940 if (fmt->fmt.pix.pixelformat ==
2941 zoran_formats[i].fourcc)
2942 break;
2943 if (i == NUM_FORMATS) {
2944 dprintk(1,
2945 KERN_ERR
2946 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2947 ZR_DEVNAME(zr),
2948 fmt->fmt.pix.pixelformat,
2949 (char *) &printformat);
2950 return -EINVAL;
2951 }
2952 mutex_lock(&zr->resource_lock);
2953 if (fh->jpg_buffers.allocated ||
2954 (fh->v4l_buffers.allocated &&
2955 fh->v4l_buffers.active !=
2956 ZORAN_FREE)) {
2957 dprintk(1,
2958 KERN_ERR
2959 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2960 ZR_DEVNAME(zr));
2961 res = -EBUSY;
2962 goto sfmtv4l_unlock_and_return;
2963 }
2964 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2965 fmt->fmt.pix.height =
2966 BUZ_MAX_HEIGHT;
2967 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2968 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2969
2970 if ((res =
2971 zoran_v4l_set_format(file,
2972 fmt->fmt.pix.
2973 width,
2974 fmt->fmt.pix.
2975 height,
2976 &zoran_formats
2977 [i])))
2978 goto sfmtv4l_unlock_and_return;
2979
2980 /* tell the user the
2981 * results/missing stuff */
2982 fmt->fmt.pix.sizeimage =
2983 fh->v4l_settings.height *
2984 fh->v4l_settings.bytesperline;
2985 if (BUZ_MAX_HEIGHT <
2986 (fh->v4l_settings.height * 2))
2987 fmt->fmt.pix.field =
2988 V4L2_FIELD_INTERLACED;
2989 else
2990 fmt->fmt.pix.field =
2991 V4L2_FIELD_TOP;
2992
2993 fh->map_mode = ZORAN_MAP_MODE_RAW;
2994 sfmtv4l_unlock_and_return:
2995 mutex_unlock(&zr->resource_lock);
2996 }
2997
2998 break;
2999
3000 default:
3001 dprintk(3, "unsupported\n");
3002 dprintk(1,
3003 KERN_ERR
3004 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3005 ZR_DEVNAME(zr), fmt->type);
3006 return -EINVAL;
3007 }
3008
3009 return res;
3010 }
3011 break;
3012
3013 case VIDIOC_G_FBUF:
3014 {
3015 struct v4l2_framebuffer *fb = arg;
3016
3017 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3018
3019 memset(fb, 0, sizeof(*fb));
3020 mutex_lock(&zr->resource_lock);
3021 fb->base = zr->buffer.base;
3022 fb->fmt.width = zr->buffer.width;
3023 fb->fmt.height = zr->buffer.height;
3024 if (zr->overlay_settings.format) {
3025 fb->fmt.pixelformat =
3026 fh->overlay_settings.format->fourcc;
3027 }
3028 fb->fmt.bytesperline = zr->buffer.bytesperline;
3029 mutex_unlock(&zr->resource_lock);
3030 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3031 fb->fmt.field = V4L2_FIELD_INTERLACED;
3032 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3033 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3034
3035 return 0;
3036 }
3037 break;
3038
3039 case VIDIOC_S_FBUF:
3040 {
3041 int i, res = 0;
3042 struct v4l2_framebuffer *fb = arg;
3043 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3044
3045 dprintk(3,
3046 KERN_DEBUG
3047 "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3048 ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3049 fb->fmt.bytesperline, fb->fmt.pixelformat,
3050 (char *) &printformat);
3051
3052 for (i = 0; i < NUM_FORMATS; i++)
3053 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3054 break;
3055 if (i == NUM_FORMATS) {
3056 dprintk(1,
3057 KERN_ERR
3058 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3059 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3060 (char *) &printformat);
3061 return -EINVAL;
3062 }
3063
3064 mutex_lock(&zr->resource_lock);
3065 res =
3066 setup_fbuffer(file, fb->base, &zoran_formats[i],
3067 fb->fmt.width, fb->fmt.height,
3068 fb->fmt.bytesperline);
3069 mutex_unlock(&zr->resource_lock);
3070
3071 return res;
3072 }
3073 break;
3074
3075 case VIDIOC_OVERLAY:
3076 {
3077 int *on = arg, res;
3078
3079 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3080 ZR_DEVNAME(zr), *on);
3081
3082 mutex_lock(&zr->resource_lock);
3083 res = setup_overlay(file, *on);
3084 mutex_unlock(&zr->resource_lock);
3085
3086 return res;
3087 }
3088 break;
3089
3090 case VIDIOC_REQBUFS:
3091 {
3092 struct v4l2_requestbuffers *req = arg;
3093 int res = 0;
3094
3095 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3096 ZR_DEVNAME(zr), req->type);
3097
3098 if (req->memory != V4L2_MEMORY_MMAP) {
3099 dprintk(1,
3100 KERN_ERR
3101 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3102 ZR_DEVNAME(zr), req->memory);
3103 return -EINVAL;
3104 }
3105
3106 mutex_lock(&zr->resource_lock);
3107
3108 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3109 dprintk(1,
3110 KERN_ERR
3111 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3112 ZR_DEVNAME(zr));
3113 res = -EBUSY;
3114 goto v4l2reqbuf_unlock_and_return;
3115 }
3116
3117 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3118 req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3119
3120 /* control user input */
3121 if (req->count < 2)
3122 req->count = 2;
3123 if (req->count > v4l_nbufs)
3124 req->count = v4l_nbufs;
3125 fh->v4l_buffers.num_buffers = req->count;
3126
3127 if (v4l_fbuffer_alloc(file)) {
3128 res = -ENOMEM;
3129 goto v4l2reqbuf_unlock_and_return;
3130 }
3131
3132 /* The next mmap will map the V4L buffers */
3133 fh->map_mode = ZORAN_MAP_MODE_RAW;
3134
3135 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3136 fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3137
3138 /* we need to calculate size ourselves now */
3139 if (req->count < 4)
3140 req->count = 4;
3141 if (req->count > jpg_nbufs)
3142 req->count = jpg_nbufs;
3143 fh->jpg_buffers.num_buffers = req->count;
3144 fh->jpg_buffers.buffer_size =
3145 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3146
3147 if (jpg_fbuffer_alloc(file)) {
3148 res = -ENOMEM;
3149 goto v4l2reqbuf_unlock_and_return;
3150 }
3151
3152 /* The next mmap will map the MJPEG buffers */
3153 if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3154 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3155 else
3156 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3157
3158 } else {
3159 dprintk(1,
3160 KERN_ERR
3161 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3162 ZR_DEVNAME(zr), req->type);
3163 res = -EINVAL;
3164 goto v4l2reqbuf_unlock_and_return;
3165 }
3166 v4l2reqbuf_unlock_and_return:
3167 mutex_unlock(&zr->resource_lock);
3168
3169 return 0;
3170 }
3171 break;
3172
3173 case VIDIOC_QUERYBUF:
3174 {
3175 struct v4l2_buffer *buf = arg;
3176 __u32 type = buf->type;
3177 int index = buf->index, res;
3178
3179 dprintk(3,
3180 KERN_DEBUG
3181 "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3182 ZR_DEVNAME(zr), buf->index, buf->type);
3183
3184 memset(buf, 0, sizeof(*buf));
3185 buf->type = type;
3186 buf->index = index;
3187
3188 mutex_lock(&zr->resource_lock);
3189 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3190 mutex_unlock(&zr->resource_lock);
3191
3192 return res;
3193 }
3194 break;
3195
3196 case VIDIOC_QBUF:
3197 {
3198 struct v4l2_buffer *buf = arg;
3199 int res = 0, codec_mode, buf_type;
3200
3201 dprintk(3,
3202 KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3203 ZR_DEVNAME(zr), buf->type, buf->index);
3204
3205 mutex_lock(&zr->resource_lock);
3206
3207 switch (fh->map_mode) {
3208 case ZORAN_MAP_MODE_RAW:
3209 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3210 dprintk(1,
3211 KERN_ERR
3212 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3213 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3214 res = -EINVAL;
3215 goto qbuf_unlock_and_return;
3216 }
3217
3218 res = zoran_v4l_queue_frame(file, buf->index);
3219 if (res)
3220 goto qbuf_unlock_and_return;
3221 if (!zr->v4l_memgrab_active &&
3222 fh->v4l_buffers.active == ZORAN_LOCKED)
3223 zr36057_set_memgrab(zr, 1);
3224 break;
3225
3226 case ZORAN_MAP_MODE_JPG_REC:
3227 case ZORAN_MAP_MODE_JPG_PLAY:
3228 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3229 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3230 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3231 } else {
3232 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3233 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3234 }
3235
3236 if (buf->type != buf_type) {
3237 dprintk(1,
3238 KERN_ERR
3239 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3240 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3241 res = -EINVAL;
3242 goto qbuf_unlock_and_return;
3243 }
3244
3245 res =
3246 zoran_jpg_queue_frame(file, buf->index,
3247 codec_mode);
3248 if (res != 0)
3249 goto qbuf_unlock_and_return;
3250 if (zr->codec_mode == BUZ_MODE_IDLE &&
3251 fh->jpg_buffers.active == ZORAN_LOCKED) {
3252 zr36057_enable_jpg(zr, codec_mode);
3253 }
3254 break;
3255
3256 default:
3257 dprintk(1,
3258 KERN_ERR
3259 "%s: VIDIOC_QBUF - unsupported type %d\n",
3260 ZR_DEVNAME(zr), buf->type);
3261 res = -EINVAL;
3262 goto qbuf_unlock_and_return;
3263 }
3264 qbuf_unlock_and_return:
3265 mutex_unlock(&zr->resource_lock);
3266
3267 return res;
3268 }
3269 break;
3270
3271 case VIDIOC_DQBUF:
3272 {
3273 struct v4l2_buffer *buf = arg;
3274 int res = 0, buf_type, num = -1; /* compiler borks here (?) */
3275
3276 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3277 ZR_DEVNAME(zr), buf->type);
3278
3279 mutex_lock(&zr->resource_lock);
3280
3281 switch (fh->map_mode) {
3282 case ZORAN_MAP_MODE_RAW:
3283 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3284 dprintk(1,
3285 KERN_ERR
3286 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3287 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3288 res = -EINVAL;
3289 goto dqbuf_unlock_and_return;
3290 }
3291
3292 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3293 if (file->f_flags & O_NONBLOCK &&
3294 zr->v4l_buffers.buffer[num].state !=
3295 BUZ_STATE_DONE) {
3296 res = -EAGAIN;
3297 goto dqbuf_unlock_and_return;
3298 }
3299 res = v4l_sync(file, num);
3300 if (res)
3301 goto dqbuf_unlock_and_return;
3302 else
3303 zr->v4l_sync_tail++;
3304 res = zoran_v4l2_buffer_status(file, buf, num);
3305 break;
3306
3307 case ZORAN_MAP_MODE_JPG_REC:
3308 case ZORAN_MAP_MODE_JPG_PLAY:
3309 {
3310 struct zoran_sync bs;
3311
3312 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3313 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3314 else
3315 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3316
3317 if (buf->type != buf_type) {
3318 dprintk(1,
3319 KERN_ERR
3320 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3321 ZR_DEVNAME(zr), buf->type, fh->map_mode);
3322 res = -EINVAL;
3323 goto dqbuf_unlock_and_return;
3324 }
3325
3326 num =
3327 zr->jpg_pend[zr->
3328 jpg_que_tail & BUZ_MASK_FRAME];
3329
3330 if (file->f_flags & O_NONBLOCK &&
3331 zr->jpg_buffers.buffer[num].state !=
3332 BUZ_STATE_DONE) {
3333 res = -EAGAIN;
3334 goto dqbuf_unlock_and_return;
3335 }
3336 res = jpg_sync(file, &bs);
3337 if (res)
3338 goto dqbuf_unlock_and_return;
3339 res =
3340 zoran_v4l2_buffer_status(file, buf, bs.frame);
3341 break;
3342 }
3343
3344 default:
3345 dprintk(1,
3346 KERN_ERR
3347 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3348 ZR_DEVNAME(zr), buf->type);
3349 res = -EINVAL;
3350 goto dqbuf_unlock_and_return;
3351 }
3352 dqbuf_unlock_and_return:
3353 mutex_unlock(&zr->resource_lock);
3354
3355 return res;
3356 }
3357 break;
3358
3359 case VIDIOC_STREAMON:
3360 {
3361 int res = 0;
3362
3363 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3364
3365 mutex_lock(&zr->resource_lock);
3366
3367 switch (fh->map_mode) {
3368 case ZORAN_MAP_MODE_RAW: /* raw capture */
3369 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3370 fh->v4l_buffers.active != ZORAN_ACTIVE) {
3371 res = -EBUSY;
3372 goto strmon_unlock_and_return;
3373 }
3374
3375 zr->v4l_buffers.active = fh->v4l_buffers.active =
3376 ZORAN_LOCKED;
3377 zr->v4l_settings = fh->v4l_settings;
3378
3379 zr->v4l_sync_tail = zr->v4l_pend_tail;
3380 if (!zr->v4l_memgrab_active &&
3381 zr->v4l_pend_head != zr->v4l_pend_tail) {
3382 zr36057_set_memgrab(zr, 1);
3383 }
3384 break;
3385
3386 case ZORAN_MAP_MODE_JPG_REC:
3387 case ZORAN_MAP_MODE_JPG_PLAY:
3388 /* what is the codec mode right now? */
3389 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3390 fh->jpg_buffers.active != ZORAN_ACTIVE) {
3391 res = -EBUSY;
3392 goto strmon_unlock_and_return;
3393 }
3394
3395 zr->jpg_buffers.active = fh->jpg_buffers.active =
3396 ZORAN_LOCKED;
3397
3398 if (zr->jpg_que_head != zr->jpg_que_tail) {
3399 /* Start the jpeg codec when the first frame is queued */
3400 jpeg_start(zr);
3401 }
3402
3403 break;
3404 default:
3405 dprintk(1,
3406 KERN_ERR
3407 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3408 ZR_DEVNAME(zr), fh->map_mode);
3409 res = -EINVAL;
3410 goto strmon_unlock_and_return;
3411 }
3412 strmon_unlock_and_return:
3413 mutex_unlock(&zr->resource_lock);
3414
3415 return res;
3416 }
3417 break;
3418
3419 case VIDIOC_STREAMOFF:
3420 {
3421 int i, res = 0;
3422
3423 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3424
3425 mutex_lock(&zr->resource_lock);
3426
3427 switch (fh->map_mode) {
3428 case ZORAN_MAP_MODE_RAW: /* raw capture */
3429 if (fh->v4l_buffers.active == ZORAN_FREE &&
3430 zr->v4l_buffers.active != ZORAN_FREE) {
3431 res = -EPERM; /* stay off other's settings! */
3432 goto strmoff_unlock_and_return;
3433 }
3434 if (zr->v4l_buffers.active == ZORAN_FREE)
3435 goto strmoff_unlock_and_return;
3436
3437 /* unload capture */
3438 if (zr->v4l_memgrab_active) {
3439 unsigned long flags;
3440
3441 spin_lock_irqsave(&zr->spinlock, flags);
3442 zr36057_set_memgrab(zr, 0);
3443 spin_unlock_irqrestore(&zr->spinlock, flags);
3444 }
3445
3446 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3447 zr->v4l_buffers.buffer[i].state =
3448 BUZ_STATE_USER;
3449 fh->v4l_buffers = zr->v4l_buffers;
3450
3451 zr->v4l_buffers.active = fh->v4l_buffers.active =
3452 ZORAN_FREE;
3453
3454 zr->v4l_grab_seq = 0;
3455 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3456 zr->v4l_sync_tail = 0;
3457
3458 break;
3459
3460 case ZORAN_MAP_MODE_JPG_REC:
3461 case ZORAN_MAP_MODE_JPG_PLAY:
3462 if (fh->jpg_buffers.active == ZORAN_FREE &&
3463 zr->jpg_buffers.active != ZORAN_FREE) {
3464 res = -EPERM; /* stay off other's settings! */
3465 goto strmoff_unlock_and_return;
3466 }
3467 if (zr->jpg_buffers.active == ZORAN_FREE)
3468 goto strmoff_unlock_and_return;
3469
3470 res =
3471 jpg_qbuf(file, -1,
3472 (fh->map_mode ==
3473 ZORAN_MAP_MODE_JPG_REC) ?
3474 BUZ_MODE_MOTION_COMPRESS :
3475 BUZ_MODE_MOTION_DECOMPRESS);
3476 if (res)
3477 goto strmoff_unlock_and_return;
3478 break;
3479 default:
3480 dprintk(1,
3481 KERN_ERR
3482 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3483 ZR_DEVNAME(zr), fh->map_mode);
3484 res = -EINVAL;
3485 goto strmoff_unlock_and_return;
3486 }
3487 strmoff_unlock_and_return:
3488 mutex_unlock(&zr->resource_lock);
3489
3490 return res;
3491 }
3492 break;
3493
3494 case VIDIOC_QUERYCTRL:
3495 {
3496 struct v4l2_queryctrl *ctrl = arg;
3497
3498 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3499 ZR_DEVNAME(zr), ctrl->id);
3500
3501 /* we only support hue/saturation/contrast/brightness */
3502 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3503 ctrl->id > V4L2_CID_HUE)
3504 return -EINVAL;
3505 else {
3506 int id = ctrl->id;
3507 memset(ctrl, 0, sizeof(*ctrl));
3508 ctrl->id = id;
3509 }
3510
3511 switch (ctrl->id) {
3512 case V4L2_CID_BRIGHTNESS:
3513 strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3514 break;
3515 case V4L2_CID_CONTRAST:
3516 strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3517 break;
3518 case V4L2_CID_SATURATION:
3519 strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3520 break;
3521 case V4L2_CID_HUE:
3522 strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3523 break;
3524 }
3525
3526 ctrl->minimum = 0;
3527 ctrl->maximum = 65535;
3528 ctrl->step = 1;
3529 ctrl->default_value = 32768;
3530 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3531
3532 return 0;
3533 }
3534 break;
3535
3536 case VIDIOC_G_CTRL:
3537 {
3538 struct v4l2_control *ctrl = arg;
3539
3540 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3541 ZR_DEVNAME(zr), ctrl->id);
3542
3543 /* we only support hue/saturation/contrast/brightness */
3544 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3545 ctrl->id > V4L2_CID_HUE)
3546 return -EINVAL;
3547
3548 mutex_lock(&zr->resource_lock);
3549 switch (ctrl->id) {
3550 case V4L2_CID_BRIGHTNESS:
3551 ctrl->value = zr->brightness;
3552 break;
3553 case V4L2_CID_CONTRAST:
3554 ctrl->value = zr->contrast;
3555 break;
3556 case V4L2_CID_SATURATION:
3557 ctrl->value = zr->saturation;
3558 break;
3559 case V4L2_CID_HUE:
3560 ctrl->value = zr->hue;
3561 break;
3562 }
3563 mutex_unlock(&zr->resource_lock);
3564
3565 return 0;
3566 }
3567 break;
3568
3569 case VIDIOC_S_CTRL:
3570 {
3571 struct v4l2_control *ctrl = arg;
3572 struct video_picture pict;
3573
3574 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3575 ZR_DEVNAME(zr), ctrl->id);
3576
3577 /* we only support hue/saturation/contrast/brightness */
3578 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3579 ctrl->id > V4L2_CID_HUE)
3580 return -EINVAL;
3581
3582 if (ctrl->value < 0 || ctrl->value > 65535) {
3583 dprintk(1,
3584 KERN_ERR
3585 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3586 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3587 return -EINVAL;
3588 }
3589
3590 mutex_lock(&zr->resource_lock);
3591 switch (ctrl->id) {
3592 case V4L2_CID_BRIGHTNESS:
3593 zr->brightness = ctrl->value;
3594 break;
3595 case V4L2_CID_CONTRAST:
3596 zr->contrast = ctrl->value;
3597 break;
3598 case V4L2_CID_SATURATION:
3599 zr->saturation = ctrl->value;
3600 break;
3601 case V4L2_CID_HUE:
3602 zr->hue = ctrl->value;
3603 break;
3604 }
3605 pict.brightness = zr->brightness;
3606 pict.contrast = zr->contrast;
3607 pict.colour = zr->saturation;
3608 pict.hue = zr->hue;
3609
3610 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3611
3612 mutex_unlock(&zr->resource_lock);
3613
3614 return 0;
3615 }
3616 break;
3617
3618 case VIDIOC_ENUMSTD:
3619 {
3620 struct v4l2_standard *std = arg;
3621
3622 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3623 ZR_DEVNAME(zr), std->index);
3624
3625 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3626 return -EINVAL;
3627 else {
3628 int id = std->index;
3629 memset(std, 0, sizeof(*std));
3630 std->index = id;
3631 }
3632
3633 if (std->index == zr->card.norms) {
3634 /* if we have autodetect, ... */
3635 struct video_decoder_capability caps;
3636 decoder_command(zr, DECODER_GET_CAPABILITIES,
3637 &caps);
3638 if (caps.flags & VIDEO_DECODER_AUTO) {
3639 std->id = V4L2_STD_ALL;
3640 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3641 return 0;
3642 } else
3643 return -EINVAL;
3644 }
3645 switch (std->index) {
3646 case 0:
3647 std->id = V4L2_STD_PAL;
3648 strncpy(std->name, "PAL", sizeof(std->name)-1);
3649 std->frameperiod.numerator = 1;
3650 std->frameperiod.denominator = 25;
3651 std->framelines = zr->card.tvn[0]->Ht;
3652 break;
3653 case 1:
3654 std->id = V4L2_STD_NTSC;
3655 strncpy(std->name, "NTSC", sizeof(std->name)-1);
3656 std->frameperiod.numerator = 1001;
3657 std->frameperiod.denominator = 30000;
3658 std->framelines = zr->card.tvn[1]->Ht;
3659 break;
3660 case 2:
3661 std->id = V4L2_STD_SECAM;
3662 strncpy(std->name, "SECAM", sizeof(std->name)-1);
3663 std->frameperiod.numerator = 1;
3664 std->frameperiod.denominator = 25;
3665 std->framelines = zr->card.tvn[2]->Ht;
3666 break;
3667 }
3668
3669 return 0;
3670 }
3671 break;
3672
3673 case VIDIOC_G_STD:
3674 {
3675 v4l2_std_id *std = arg;
3676 int norm;
3677
3678 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3679
3680 mutex_lock(&zr->resource_lock);
3681 norm = zr->norm;
3682 mutex_unlock(&zr->resource_lock);
3683
3684 switch (norm) {
3685 case VIDEO_MODE_PAL:
3686 *std = V4L2_STD_PAL;
3687 break;
3688 case VIDEO_MODE_NTSC:
3689 *std = V4L2_STD_NTSC;
3690 break;
3691 case VIDEO_MODE_SECAM:
3692 *std = V4L2_STD_SECAM;
3693 break;
3694 }
3695
3696 return 0;
3697 }
3698 break;
3699
3700 case VIDIOC_S_STD:
3701 {
3702 int norm = -1, res = 0;
3703 v4l2_std_id *std = arg;
3704
3705 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3706 ZR_DEVNAME(zr), (unsigned long long)*std);
3707
3708 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3709 norm = VIDEO_MODE_PAL;
3710 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3711 norm = VIDEO_MODE_NTSC;
3712 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3713 norm = VIDEO_MODE_SECAM;
3714 else if (*std == V4L2_STD_ALL)
3715 norm = VIDEO_MODE_AUTO;
3716 else {
3717 dprintk(1,
3718 KERN_ERR
3719 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3720 ZR_DEVNAME(zr), (unsigned long long)*std);
3721 return -EINVAL;
3722 }
3723
3724 mutex_lock(&zr->resource_lock);
3725 if ((res = zoran_set_norm(zr, norm)))
3726 goto sstd_unlock_and_return;
3727
3728 res = wait_grab_pending(zr);
3729 sstd_unlock_and_return:
3730 mutex_unlock(&zr->resource_lock);
3731 return res;
3732 }
3733 break;
3734
3735 case VIDIOC_ENUMINPUT:
3736 {
3737 struct v4l2_input *inp = arg;
3738 int status;
3739
3740 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3741 ZR_DEVNAME(zr), inp->index);
3742
3743 if (inp->index < 0 || inp->index >= zr->card.inputs)
3744 return -EINVAL;
3745 else {
3746 int id = inp->index;
3747 memset(inp, 0, sizeof(*inp));
3748 inp->index = id;
3749 }
3750
3751 strncpy(inp->name, zr->card.input[inp->index].name,
3752 sizeof(inp->name) - 1);
3753 inp->type = V4L2_INPUT_TYPE_CAMERA;
3754 inp->std = V4L2_STD_ALL;
3755
3756 /* Get status of video decoder */
3757 mutex_lock(&zr->resource_lock);
3758 decoder_command(zr, DECODER_GET_STATUS, &status);
3759 mutex_unlock(&zr->resource_lock);
3760
3761 if (!(status & DECODER_STATUS_GOOD)) {
3762 inp->status |= V4L2_IN_ST_NO_POWER;
3763 inp->status |= V4L2_IN_ST_NO_SIGNAL;
3764 }
3765 if (!(status & DECODER_STATUS_COLOR))
3766 inp->status |= V4L2_IN_ST_NO_COLOR;
3767
3768 return 0;
3769 }
3770 break;
3771
3772 case VIDIOC_G_INPUT:
3773 {
3774 int *input = arg;
3775
3776 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3777
3778 mutex_lock(&zr->resource_lock);
3779 *input = zr->input;
3780 mutex_unlock(&zr->resource_lock);
3781
3782 return 0;
3783 }
3784 break;
3785
3786 case VIDIOC_S_INPUT:
3787 {
3788 int *input = arg, res = 0;
3789
3790 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3791 ZR_DEVNAME(zr), *input);
3792
3793 mutex_lock(&zr->resource_lock);
3794 if ((res = zoran_set_input(zr, *input)))
3795 goto sinput_unlock_and_return;
3796
3797 /* Make sure the changes come into effect */
3798 res = wait_grab_pending(zr);
3799 sinput_unlock_and_return:
3800 mutex_unlock(&zr->resource_lock);
3801 return res;
3802 }
3803 break;
3804
3805 case VIDIOC_ENUMOUTPUT:
3806 {
3807 struct v4l2_output *outp = arg;
3808
3809 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3810 ZR_DEVNAME(zr), outp->index);
3811
3812 if (outp->index != 0)
3813 return -EINVAL;
3814
3815 memset(outp, 0, sizeof(*outp));
3816 outp->index = 0;
3817 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3818 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3819
3820 return 0;
3821 }
3822 break;
3823
3824 case VIDIOC_G_OUTPUT:
3825 {
3826 int *output = arg;
3827
3828 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3829
3830 *output = 0;
3831
3832 return 0;
3833 }
3834 break;
3835
3836 case VIDIOC_S_OUTPUT:
3837 {
3838 int *output = arg;
3839
3840 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3841 ZR_DEVNAME(zr), *output);
3842
3843 if (*output != 0)
3844 return -EINVAL;
3845
3846 return 0;
3847 }
3848 break;
3849
3850 /* cropping (sub-frame capture) */
3851 case VIDIOC_CROPCAP:
3852 {
3853 struct v4l2_cropcap *cropcap = arg;
3854 int type = cropcap->type, res = 0;
3855
3856 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3857 ZR_DEVNAME(zr), cropcap->type);
3858
3859 memset(cropcap, 0, sizeof(*cropcap));
3860 cropcap->type = type;
3861
3862 mutex_lock(&zr->resource_lock);
3863
3864 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3865 (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3866 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3867 dprintk(1,
3868 KERN_ERR
3869 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3870 ZR_DEVNAME(zr));
3871 res = -EINVAL;
3872 goto cropcap_unlock_and_return;
3873 }
3874
3875 cropcap->bounds.top = cropcap->bounds.left = 0;
3876 cropcap->bounds.width = BUZ_MAX_WIDTH;
3877 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3878 cropcap->defrect.top = cropcap->defrect.left = 0;
3879 cropcap->defrect.width = BUZ_MIN_WIDTH;
3880 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3881 cropcap_unlock_and_return:
3882 mutex_unlock(&zr->resource_lock);
3883 return res;
3884 }
3885 break;
3886
3887 case VIDIOC_G_CROP:
3888 {
3889 struct v4l2_crop *crop = arg;
3890 int type = crop->type, res = 0;
3891
3892 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3893 ZR_DEVNAME(zr), crop->type);
3894
3895 memset(crop, 0, sizeof(*crop));
3896 crop->type = type;
3897
3898 mutex_lock(&zr->resource_lock);
3899
3900 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3901 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3902 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3903 dprintk(1,
3904 KERN_ERR
3905 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3906 ZR_DEVNAME(zr));
3907 res = -EINVAL;
3908 goto gcrop_unlock_and_return;
3909 }
3910
3911 crop->c.top = fh->jpg_settings.img_y;
3912 crop->c.left = fh->jpg_settings.img_x;
3913 crop->c.width = fh->jpg_settings.img_width;
3914 crop->c.height = fh->jpg_settings.img_height;
3915
3916 gcrop_unlock_and_return:
3917 mutex_unlock(&zr->resource_lock);
3918
3919 return res;
3920 }
3921 break;
3922
3923 case VIDIOC_S_CROP:
3924 {
3925 struct v4l2_crop *crop = arg;
3926 int res = 0;
3927
3928 settings = fh->jpg_settings;
3929
3930 dprintk(3,
3931 KERN_ERR
3932 "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3933 ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3934 crop->c.width, crop->c.height);
3935
3936 mutex_lock(&zr->resource_lock);
3937
3938 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3939 dprintk(1,
3940 KERN_ERR
3941 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3942 ZR_DEVNAME(zr));
3943 res = -EBUSY;
3944 goto scrop_unlock_and_return;
3945 }
3946
3947 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3948 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3949 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3950 dprintk(1,
3951 KERN_ERR
3952 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3953 ZR_DEVNAME(zr));
3954 res = -EINVAL;
3955 goto scrop_unlock_and_return;
3956 }
3957
3958 /* move into a form that we understand */
3959 settings.img_x = crop->c.left;
3960 settings.img_y = crop->c.top;
3961 settings.img_width = crop->c.width;
3962 settings.img_height = crop->c.height;
3963
3964 /* check validity */
3965 if ((res = zoran_check_jpg_settings(zr, &settings)))
3966 goto scrop_unlock_and_return;
3967
3968 /* accept */
3969 fh->jpg_settings = settings;
3970
3971 scrop_unlock_and_return:
3972 mutex_unlock(&zr->resource_lock);
3973 return res;
3974 }
3975 break;
3976
3977 case VIDIOC_G_JPEGCOMP:
3978 {
3979 struct v4l2_jpegcompression *params = arg;
3980
3981 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3982 ZR_DEVNAME(zr));
3983
3984 memset(params, 0, sizeof(*params));
3985
3986 mutex_lock(&zr->resource_lock);
3987
3988 params->quality = fh->jpg_settings.jpg_comp.quality;
3989 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3990 memcpy(params->APP_data,
3991 fh->jpg_settings.jpg_comp.APP_data,
3992 fh->jpg_settings.jpg_comp.APP_len);
3993 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3994 memcpy(params->COM_data,
3995 fh->jpg_settings.jpg_comp.COM_data,
3996 fh->jpg_settings.jpg_comp.COM_len);
3997 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3998 params->jpeg_markers =
3999 fh->jpg_settings.jpg_comp.jpeg_markers;
4000
4001 mutex_unlock(&zr->resource_lock);
4002
4003 return 0;
4004 }
4005 break;
4006
4007 case VIDIOC_S_JPEGCOMP:
4008 {
4009 struct v4l2_jpegcompression *params = arg;
4010 int res = 0;
4011
4012 settings = fh->jpg_settings;
4013
4014 dprintk(3,
4015 KERN_DEBUG
4016 "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4017 ZR_DEVNAME(zr), params->quality, params->APPn,
4018 params->APP_len, params->COM_len);
4019
4020 settings.jpg_comp = *params;
4021
4022 mutex_lock(&zr->resource_lock);
4023
4024 if (fh->v4l_buffers.active != ZORAN_FREE ||
4025 fh->jpg_buffers.active != ZORAN_FREE) {
4026 dprintk(1,
4027 KERN_WARNING
4028 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4029 ZR_DEVNAME(zr));
4030 res = -EBUSY;
4031 goto sjpegc_unlock_and_return;
4032 }
4033
4034 if ((res = zoran_check_jpg_settings(zr, &settings)))
4035 goto sjpegc_unlock_and_return;
4036 if (!fh->jpg_buffers.allocated)
4037 fh->jpg_buffers.buffer_size =
4038 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4039 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4040 sjpegc_unlock_and_return:
4041 mutex_unlock(&zr->resource_lock);
4042
4043 return 0;
4044 }
4045 break;
4046
4047 case VIDIOC_QUERYSTD: /* why is this useful? */
4048 {
4049 v4l2_std_id *std = arg;
4050
4051 dprintk(3,
4052 KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4053 ZR_DEVNAME(zr), (unsigned long long)*std);
4054
4055 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4056 *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4057 zr->card.norms == 3)) {
4058 return 0;
4059 }
4060
4061 return -EINVAL;
4062 }
4063 break;
4064
4065 case VIDIOC_TRY_FMT:
4066 {
4067 struct v4l2_format *fmt = arg;
4068 int res = 0;
4069
4070 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4071 ZR_DEVNAME(zr), fmt->type);
4072
4073 switch (fmt->type) {
4074 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4075 mutex_lock(&zr->resource_lock);
4076
4077 if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4078 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4079 if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4080 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4081 if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4082 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4083 if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4084 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4085
4086 mutex_unlock(&zr->resource_lock);
4087 break;
4088
4089 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4090 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4091 if (fmt->fmt.pix.bytesperline > 0)
4092 return -EINVAL;
4093
4094 mutex_lock(&zr->resource_lock);
4095
4096 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4097 settings = fh->jpg_settings;
4098
4099 /* we actually need to set 'real' parameters now */
4100 if ((fmt->fmt.pix.height * 2) >
4101 BUZ_MAX_HEIGHT)
4102 settings.TmpDcm = 1;
4103 else
4104 settings.TmpDcm = 2;
4105 settings.decimation = 0;
4106 if (fmt->fmt.pix.height <=
4107 fh->jpg_settings.img_height / 2)
4108 settings.VerDcm = 2;
4109 else
4110 settings.VerDcm = 1;
4111 if (fmt->fmt.pix.width <=
4112 fh->jpg_settings.img_width / 4)
4113 settings.HorDcm = 4;
4114 else if (fmt->fmt.pix.width <=
4115 fh->jpg_settings.img_width / 2)
4116 settings.HorDcm = 2;
4117 else
4118 settings.HorDcm = 1;
4119 if (settings.TmpDcm == 1)
4120 settings.field_per_buff = 2;
4121 else
4122 settings.field_per_buff = 1;
4123
4124 /* check */
4125 if ((res =
4126 zoran_check_jpg_settings(zr,
4127 &settings)))
4128 goto tryfmt_unlock_and_return;
4129
4130 /* tell the user what we actually did */
4131 fmt->fmt.pix.width =
4132 settings.img_width / settings.HorDcm;
4133 fmt->fmt.pix.height =
4134 settings.img_height * 2 /
4135 (settings.TmpDcm * settings.VerDcm);
4136 if (settings.TmpDcm == 1)
4137 fmt->fmt.pix.field =
4138 (fh->jpg_settings.
4139 odd_even ? V4L2_FIELD_SEQ_TB :
4140 V4L2_FIELD_SEQ_BT);
4141 else
4142 fmt->fmt.pix.field =
4143 (fh->jpg_settings.
4144 odd_even ? V4L2_FIELD_TOP :
4145 V4L2_FIELD_BOTTOM);
4146
4147 fmt->fmt.pix.sizeimage =
4148 zoran_v4l2_calc_bufsize(&settings);
4149 } else if (fmt->type ==
4150 V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4151 int i;
4152
4153 for (i = 0; i < NUM_FORMATS; i++)
4154 if (zoran_formats[i].fourcc ==
4155 fmt->fmt.pix.pixelformat)
4156 break;
4157 if (i == NUM_FORMATS) {
4158 res = -EINVAL;
4159 goto tryfmt_unlock_and_return;
4160 }
4161
4162 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4163 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4164 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4165 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4166 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4167 fmt->fmt.pix.height =
4168 BUZ_MAX_HEIGHT;
4169 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4170 fmt->fmt.pix.height =
4171 BUZ_MIN_HEIGHT;
4172 } else {
4173 res = -EINVAL;
4174 goto tryfmt_unlock_and_return;
4175 }
4176 tryfmt_unlock_and_return:
4177 mutex_unlock(&zr->resource_lock);
4178
4179 return res;
4180 break;
4181
4182 default:
4183 return -EINVAL;
4184 }
4185
4186 return 0;
4187 }
4188 break;
4189
4190 default:
4191 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4192 ZR_DEVNAME(zr), cmd);
4193 return -ENOIOCTLCMD;
4194 break;
4195
4196 }
4197 return 0;
4198 }
4199
4200
4201 static int
4202 zoran_ioctl (struct inode *inode,
4203 struct file *file,
4204 unsigned int cmd,
4205 unsigned long arg)
4206 {
4207 return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4208 }
4209
4210 static unsigned int
4211 zoran_poll (struct file *file,
4212 poll_table *wait)
4213 {
4214 struct zoran_fh *fh = file->private_data;
4215 struct zoran *zr = fh->zr;
4216 int res = 0, frame;
4217 unsigned long flags;
4218
4219 /* we should check whether buffers are ready to be synced on
4220 * (w/o waits - O_NONBLOCK) here
4221 * if ready for read (sync), return POLLIN|POLLRDNORM,
4222 * if ready for write (sync), return POLLOUT|POLLWRNORM,
4223 * if error, return POLLERR,
4224 * if no buffers queued or so, return POLLNVAL
4225 */
4226
4227 mutex_lock(&zr->resource_lock);
4228
4229 switch (fh->map_mode) {
4230 case ZORAN_MAP_MODE_RAW:
4231 poll_wait(file, &zr->v4l_capq, wait);
4232 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4233
4234 spin_lock_irqsave(&zr->spinlock, flags);
4235 dprintk(3,
4236 KERN_DEBUG
4237 "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4238 ZR_DEVNAME(zr), __func__,
4239 "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4240 "UPMD"[zr->v4l_buffers.buffer[frame].state],
4241 zr->v4l_pend_tail, zr->v4l_pend_head);
4242 /* Process is the one capturing? */
4243 if (fh->v4l_buffers.active != ZORAN_FREE &&
4244 /* Buffer ready to DQBUF? */
4245 zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4246 res = POLLIN | POLLRDNORM;
4247 spin_unlock_irqrestore(&zr->spinlock, flags);
4248
4249 break;
4250
4251 case ZORAN_MAP_MODE_JPG_REC:
4252 case ZORAN_MAP_MODE_JPG_PLAY:
4253 poll_wait(file, &zr->jpg_capq, wait);
4254 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4255
4256 spin_lock_irqsave(&zr->spinlock, flags);
4257 dprintk(3,
4258 KERN_DEBUG
4259 "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4260 ZR_DEVNAME(zr), __func__,
4261 "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4262 "UPMD"[zr->jpg_buffers.buffer[frame].state],
4263 zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4264 if (fh->jpg_buffers.active != ZORAN_FREE &&
4265 zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4266 if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4267 res = POLLIN | POLLRDNORM;
4268 else
4269 res = POLLOUT | POLLWRNORM;
4270 }
4271 spin_unlock_irqrestore(&zr->spinlock, flags);
4272
4273 break;
4274
4275 default:
4276 dprintk(1,
4277 KERN_ERR
4278 "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4279 ZR_DEVNAME(zr), fh->map_mode);
4280 res = POLLNVAL;
4281 }
4282
4283 mutex_unlock(&zr->resource_lock);
4284
4285 return res;
4286 }
4287
4288
4289 /*
4290 * This maps the buffers to user space.
4291 *
4292 * Depending on the state of fh->map_mode
4293 * the V4L or the MJPEG buffers are mapped
4294 * per buffer or all together
4295 *
4296 * Note that we need to connect to some
4297 * unmap signal event to unmap the de-allocate
4298 * the buffer accordingly (zoran_vm_close())
4299 */
4300
4301 static void
4302 zoran_vm_open (struct vm_area_struct *vma)
4303 {
4304 struct zoran_mapping *map = vma->vm_private_data;
4305
4306 map->count++;
4307 }
4308
4309 static void
4310 zoran_vm_close (struct vm_area_struct *vma)
4311 {
4312 struct zoran_mapping *map = vma->vm_private_data;
4313 struct file *file = map->file;
4314 struct zoran_fh *fh = file->private_data;
4315 struct zoran *zr = fh->zr;
4316 int i;
4317
4318 map->count--;
4319 if (map->count == 0) {
4320 switch (fh->map_mode) {
4321 case ZORAN_MAP_MODE_JPG_REC:
4322 case ZORAN_MAP_MODE_JPG_PLAY:
4323
4324 dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4325 ZR_DEVNAME(zr));
4326
4327 for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4328 if (fh->jpg_buffers.buffer[i].map == map) {
4329 fh->jpg_buffers.buffer[i].map =
4330 NULL;
4331 }
4332 }
4333 kfree(map);
4334
4335 for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4336 if (fh->jpg_buffers.buffer[i].map)
4337 break;
4338 if (i == fh->jpg_buffers.num_buffers) {
4339 mutex_lock(&zr->resource_lock);
4340
4341 if (fh->jpg_buffers.active != ZORAN_FREE) {
4342 jpg_qbuf(file, -1, zr->codec_mode);
4343 zr->jpg_buffers.allocated = 0;
4344 zr->jpg_buffers.active =
4345 fh->jpg_buffers.active =
4346 ZORAN_FREE;
4347 }
4348 //jpg_fbuffer_free(file);
4349 fh->jpg_buffers.allocated = 0;
4350 fh->jpg_buffers.ready_to_be_freed = 1;
4351
4352 mutex_unlock(&zr->resource_lock);
4353 }
4354
4355 break;
4356
4357 case ZORAN_MAP_MODE_RAW:
4358
4359 dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4360 ZR_DEVNAME(zr));
4361
4362 for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4363 if (fh->v4l_buffers.buffer[i].map == map) {
4364 /* unqueue/unmap */
4365 fh->v4l_buffers.buffer[i].map =
4366 NULL;
4367 }
4368 }
4369 kfree(map);
4370
4371 for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4372 if (fh->v4l_buffers.buffer[i].map)
4373 break;
4374 if (i == fh->v4l_buffers.num_buffers) {
4375 mutex_lock(&zr->resource_lock);
4376
4377 if (fh->v4l_buffers.active != ZORAN_FREE) {
4378 unsigned long flags;
4379
4380 spin_lock_irqsave(&zr->spinlock, flags);
4381 zr36057_set_memgrab(zr, 0);
4382 zr->v4l_buffers.allocated = 0;
4383 zr->v4l_buffers.active =
4384 fh->v4l_buffers.active =
4385 ZORAN_FREE;
4386 spin_unlock_irqrestore(&zr->spinlock, flags);
4387 }
4388 //v4l_fbuffer_free(file);
4389 fh->v4l_buffers.allocated = 0;
4390 fh->v4l_buffers.ready_to_be_freed = 1;
4391
4392 mutex_unlock(&zr->resource_lock);
4393 }
4394
4395 break;
4396
4397 default:
4398 printk(KERN_ERR
4399 "%s: munmap() - internal error - unknown map mode %d\n",
4400 ZR_DEVNAME(zr), fh->map_mode);
4401 break;
4402
4403 }
4404 }
4405 }
4406
4407 static struct vm_operations_struct zoran_vm_ops = {
4408 .open = zoran_vm_open,
4409 .close = zoran_vm_close,
4410 };
4411
4412 static int
4413 zoran_mmap (struct file *file,
4414 struct vm_area_struct *vma)
4415 {
4416 struct zoran_fh *fh = file->private_data;
4417 struct zoran *zr = fh->zr;
4418 unsigned long size = (vma->vm_end - vma->vm_start);
4419 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4420 int i, j;
4421 unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4422 int first, last;
4423 struct zoran_mapping *map;
4424 int res = 0;
4425
4426 dprintk(3,
4427 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4428 ZR_DEVNAME(zr),
4429 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4430 vma->vm_start, vma->vm_end, size);
4431
4432 if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4433 !(vma->vm_flags & VM_WRITE)) {
4434 dprintk(1,
4435 KERN_ERR
4436 "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4437 ZR_DEVNAME(zr));
4438 return -EINVAL;
4439 }
4440
4441 switch (fh->map_mode) {
4442
4443 case ZORAN_MAP_MODE_JPG_REC:
4444 case ZORAN_MAP_MODE_JPG_PLAY:
4445
4446 /* lock */
4447 mutex_lock(&zr->resource_lock);
4448
4449 /* Map the MJPEG buffers */
4450 if (!fh->jpg_buffers.allocated) {
4451 dprintk(1,
4452 KERN_ERR
4453 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4454 ZR_DEVNAME(zr));
4455 res = -ENOMEM;
4456 goto jpg_mmap_unlock_and_return;
4457 }
4458
4459 first = offset / fh->jpg_buffers.buffer_size;
4460 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4461 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4462 size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4463 last < 0 || first >= fh->jpg_buffers.num_buffers ||
4464 last >= fh->jpg_buffers.num_buffers) {
4465 dprintk(1,
4466 KERN_ERR
4467 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4468 ZR_DEVNAME(zr), offset, size,
4469 fh->jpg_buffers.buffer_size,
4470 fh->jpg_buffers.num_buffers);
4471 res = -EINVAL;
4472 goto jpg_mmap_unlock_and_return;
4473 }
4474 for (i = first; i <= last; i++) {
4475 if (fh->jpg_buffers.buffer[i].map) {
4476 dprintk(1,
4477 KERN_ERR
4478 "%s: mmap(MJPEG) - buffer %d already mapped\n",
4479 ZR_DEVNAME(zr), i);
4480 res = -EBUSY;
4481 goto jpg_mmap_unlock_and_return;
4482 }
4483 }
4484
4485 /* map these buffers (v4l_buffers[i]) */
4486 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4487 if (!map) {
4488 res = -ENOMEM;
4489 goto jpg_mmap_unlock_and_return;
4490 }
4491 map->file = file;
4492 map->count = 1;
4493
4494 vma->vm_ops = &zoran_vm_ops;
4495 vma->vm_flags |= VM_DONTEXPAND;
4496 vma->vm_private_data = map;
4497
4498 for (i = first; i <= last; i++) {
4499 for (j = 0;
4500 j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4501 j++) {
4502 fraglen =
4503 (le32_to_cpu(fh->jpg_buffers.buffer[i].
4504 frag_tab[2 * j + 1]) & ~1) << 1;
4505 todo = size;
4506 if (todo > fraglen)
4507 todo = fraglen;
4508 pos =
4509 le32_to_cpu(fh->jpg_buffers.
4510 buffer[i].frag_tab[2 * j]);
4511 /* should just be pos on i386 */
4512 page = virt_to_phys(bus_to_virt(pos))
4513 >> PAGE_SHIFT;
4514 if (remap_pfn_range(vma, start, page,
4515 todo, PAGE_SHARED)) {
4516 dprintk(1,
4517 KERN_ERR
4518 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4519 ZR_DEVNAME(zr));
4520 res = -EAGAIN;
4521 goto jpg_mmap_unlock_and_return;
4522 }
4523 size -= todo;
4524 start += todo;
4525 if (size == 0)
4526 break;
4527 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4528 frag_tab[2 * j + 1]) & 1)
4529 break; /* was last fragment */
4530 }
4531 fh->jpg_buffers.buffer[i].map = map;
4532 if (size == 0)
4533 break;
4534
4535 }
4536 jpg_mmap_unlock_and_return:
4537 mutex_unlock(&zr->resource_lock);
4538
4539 break;
4540
4541 case ZORAN_MAP_MODE_RAW:
4542
4543 mutex_lock(&zr->resource_lock);
4544
4545 /* Map the V4L buffers */
4546 if (!fh->v4l_buffers.allocated) {
4547 dprintk(1,
4548 KERN_ERR
4549 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4550 ZR_DEVNAME(zr));
4551 res = -ENOMEM;
4552 goto v4l_mmap_unlock_and_return;
4553 }
4554
4555 first = offset / fh->v4l_buffers.buffer_size;
4556 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4557 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4558 size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4559 last < 0 || first >= fh->v4l_buffers.num_buffers ||
4560 last >= fh->v4l_buffers.buffer_size) {
4561 dprintk(1,
4562 KERN_ERR
4563 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4564 ZR_DEVNAME(zr), offset, size,
4565 fh->v4l_buffers.buffer_size,
4566 fh->v4l_buffers.num_buffers);
4567 res = -EINVAL;
4568 goto v4l_mmap_unlock_and_return;
4569 }
4570 for (i = first; i <= last; i++) {
4571 if (fh->v4l_buffers.buffer[i].map) {
4572 dprintk(1,
4573 KERN_ERR
4574 "%s: mmap(V4L) - buffer %d already mapped\n",
4575 ZR_DEVNAME(zr), i);
4576 res = -EBUSY;
4577 goto v4l_mmap_unlock_and_return;
4578 }
4579 }
4580
4581 /* map these buffers (v4l_buffers[i]) */
4582 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4583 if (!map) {
4584 res = -ENOMEM;
4585 goto v4l_mmap_unlock_and_return;
4586 }
4587 map->file = file;
4588 map->count = 1;
4589
4590 vma->vm_ops = &zoran_vm_ops;
4591 vma->vm_flags |= VM_DONTEXPAND;
4592 vma->vm_private_data = map;
4593
4594 for (i = first; i <= last; i++) {
4595 todo = size;
4596 if (todo > fh->v4l_buffers.buffer_size)
4597 todo = fh->v4l_buffers.buffer_size;
4598 page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4599 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4600 todo, PAGE_SHARED)) {
4601 dprintk(1,
4602 KERN_ERR
4603 "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4604 ZR_DEVNAME(zr));
4605 res = -EAGAIN;
4606 goto v4l_mmap_unlock_and_return;
4607 }
4608 size -= todo;
4609 start += todo;
4610 fh->v4l_buffers.buffer[i].map = map;
4611 if (size == 0)
4612 break;
4613 }
4614 v4l_mmap_unlock_and_return:
4615 mutex_unlock(&zr->resource_lock);
4616
4617 break;
4618
4619 default:
4620 dprintk(1,
4621 KERN_ERR
4622 "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4623 ZR_DEVNAME(zr), fh->map_mode);
4624 break;
4625 }
4626
4627 return 0;
4628 }
4629
4630 static const struct file_operations zoran_fops = {
4631 .owner = THIS_MODULE,
4632 .open = zoran_open,
4633 .release = zoran_close,
4634 .ioctl = zoran_ioctl,
4635 #ifdef CONFIG_COMPAT
4636 .compat_ioctl = v4l_compat_ioctl32,
4637 #endif
4638 .llseek = no_llseek,
4639 .read = zoran_read,
4640 .write = zoran_write,
4641 .mmap = zoran_mmap,
4642 .poll = zoran_poll,
4643 };
4644
4645 struct video_device zoran_template __devinitdata = {
4646 .name = ZORAN_NAME,
4647 .type = ZORAN_VID_TYPE,
4648 .type2 = ZORAN_V4L2_VID_FLAGS,
4649 .fops = &zoran_fops,
4650 .release = &zoran_vdev_release,
4651 .minor = -1
4652 };
4653
Linux for Ginger Game Console