V4L/DVB (11380): v4l2-subdev: change s_routing prototype
[linux-2.6.git] / drivers / media / video / zoran / zoran_driver.c
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
62 #include <linux/videodev.h>
63 #include <media/v4l2-common.h>
64 #include <media/v4l2-ioctl.h>
65 #include "videocodec.h"
66
67 #include <asm/byteorder.h>
68 #include <asm/io.h>
69 #include <asm/uaccess.h>
70 #include <linux/proc_fs.h>
71
72 #include <linux/mutex.h>
73 #include "zoran.h"
74 #include "zoran_device.h"
75 #include "zoran_card.h"
76
77
78 const struct zoran_format zoran_formats[] = {
79         {
80                 .name = "15-bit RGB LE",
81                 .fourcc = V4L2_PIX_FMT_RGB555,
82                 .colorspace = V4L2_COLORSPACE_SRGB,
83                 .depth = 15,
84                 .flags = ZORAN_FORMAT_CAPTURE |
85                          ZORAN_FORMAT_OVERLAY,
86                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
87                            ZR36057_VFESPFR_LittleEndian,
88         }, {
89                 .name = "15-bit RGB BE",
90                 .fourcc = V4L2_PIX_FMT_RGB555X,
91                 .colorspace = V4L2_COLORSPACE_SRGB,
92                 .depth = 15,
93                 .flags = ZORAN_FORMAT_CAPTURE |
94                          ZORAN_FORMAT_OVERLAY,
95                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
96         }, {
97                 .name = "16-bit RGB LE",
98                 .fourcc = V4L2_PIX_FMT_RGB565,
99                 .colorspace = V4L2_COLORSPACE_SRGB,
100                 .depth = 16,
101                 .flags = ZORAN_FORMAT_CAPTURE |
102                          ZORAN_FORMAT_OVERLAY,
103                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
104                            ZR36057_VFESPFR_LittleEndian,
105         }, {
106                 .name = "16-bit RGB BE",
107                 .fourcc = V4L2_PIX_FMT_RGB565X,
108                 .colorspace = V4L2_COLORSPACE_SRGB,
109                 .depth = 16,
110                 .flags = ZORAN_FORMAT_CAPTURE |
111                          ZORAN_FORMAT_OVERLAY,
112                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
113         }, {
114                 .name = "24-bit RGB",
115                 .fourcc = V4L2_PIX_FMT_BGR24,
116                 .colorspace = V4L2_COLORSPACE_SRGB,
117                 .depth = 24,
118                 .flags = ZORAN_FORMAT_CAPTURE |
119                          ZORAN_FORMAT_OVERLAY,
120                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
121         }, {
122                 .name = "32-bit RGB LE",
123                 .fourcc = V4L2_PIX_FMT_BGR32,
124                 .colorspace = V4L2_COLORSPACE_SRGB,
125                 .depth = 32,
126                 .flags = ZORAN_FORMAT_CAPTURE |
127                          ZORAN_FORMAT_OVERLAY,
128                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
129         }, {
130                 .name = "32-bit RGB BE",
131                 .fourcc = V4L2_PIX_FMT_RGB32,
132                 .colorspace = V4L2_COLORSPACE_SRGB,
133                 .depth = 32,
134                 .flags = ZORAN_FORMAT_CAPTURE |
135                          ZORAN_FORMAT_OVERLAY,
136                 .vfespfr = ZR36057_VFESPFR_RGB888,
137         }, {
138                 .name = "4:2:2, packed, YUYV",
139                 .fourcc = V4L2_PIX_FMT_YUYV,
140                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
141                 .depth = 16,
142                 .flags = ZORAN_FORMAT_CAPTURE |
143                          ZORAN_FORMAT_OVERLAY,
144                 .vfespfr = ZR36057_VFESPFR_YUV422,
145         }, {
146                 .name = "4:2:2, packed, UYVY",
147                 .fourcc = V4L2_PIX_FMT_UYVY,
148                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
149                 .depth = 16,
150                 .flags = ZORAN_FORMAT_CAPTURE |
151                          ZORAN_FORMAT_OVERLAY,
152                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
153         }, {
154                 .name = "Hardware-encoded Motion-JPEG",
155                 .fourcc = V4L2_PIX_FMT_MJPEG,
156                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
157                 .depth = 0,
158                 .flags = ZORAN_FORMAT_CAPTURE |
159                          ZORAN_FORMAT_PLAYBACK |
160                          ZORAN_FORMAT_COMPRESSED,
161         }
162 };
163 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
164
165         /* small helper function for calculating buffersizes for v4l2
166          * we calculate the nearest higher power-of-two, which
167          * will be the recommended buffersize */
168 static __u32
169 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
170 {
171         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
172         __u32 num = (1024 * 512) / (div);
173         __u32 result = 2;
174
175         num--;
176         while (num) {
177                 num >>= 1;
178                 result <<= 1;
179         }
180
181         if (result > jpg_bufsize)
182                 return jpg_bufsize;
183         if (result < 8192)
184                 return 8192;
185         return result;
186 }
187
188 /* forward references */
189 static void v4l_fbuffer_free(struct zoran_fh *fh);
190 static void jpg_fbuffer_free(struct zoran_fh *fh);
191
192 /* Set mapping mode */
193 static void map_mode_raw(struct zoran_fh *fh)
194 {
195         fh->map_mode = ZORAN_MAP_MODE_RAW;
196         fh->buffers.buffer_size = v4l_bufsize;
197         fh->buffers.num_buffers = v4l_nbufs;
198 }
199 static void map_mode_jpg(struct zoran_fh *fh, int play)
200 {
201         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
202         fh->buffers.buffer_size = jpg_bufsize;
203         fh->buffers.num_buffers = jpg_nbufs;
204 }
205 static inline const char *mode_name(enum zoran_map_mode mode)
206 {
207         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
208 }
209
210 /*
211  *   Allocate the V4L grab buffers
212  *
213  *   These have to be pysically contiguous.
214  */
215
216 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
217 {
218         struct zoran *zr = fh->zr;
219         int i, off;
220         unsigned char *mem;
221
222         for (i = 0; i < fh->buffers.num_buffers; i++) {
223                 if (fh->buffers.buffer[i].v4l.fbuffer)
224                         dprintk(2,
225                                 KERN_WARNING
226                                 "%s: %s - buffer %d already allocated!?\n",
227                                 ZR_DEVNAME(zr), __func__, i);
228
229                 //udelay(20);
230                 mem = kmalloc(fh->buffers.buffer_size,
231                               GFP_KERNEL | __GFP_NOWARN);
232                 if (!mem) {
233                         dprintk(1,
234                                 KERN_ERR
235                                 "%s: %s - kmalloc for V4L buf %d failed\n",
236                                 ZR_DEVNAME(zr), __func__, i);
237                         v4l_fbuffer_free(fh);
238                         return -ENOBUFS;
239                 }
240                 fh->buffers.buffer[i].v4l.fbuffer = mem;
241                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
242                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
243                 for (off = 0; off < fh->buffers.buffer_size;
244                      off += PAGE_SIZE)
245                         SetPageReserved(virt_to_page(mem + off));
246                 dprintk(4,
247                         KERN_INFO
248                         "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
249                         ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
250                         (unsigned long long)virt_to_bus(mem));
251         }
252
253         fh->buffers.allocated = 1;
254
255         return 0;
256 }
257
258 /* free the V4L grab buffers */
259 static void v4l_fbuffer_free(struct zoran_fh *fh)
260 {
261         struct zoran *zr = fh->zr;
262         int i, off;
263         unsigned char *mem;
264
265         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
266
267         for (i = 0; i < fh->buffers.num_buffers; i++) {
268                 if (!fh->buffers.buffer[i].v4l.fbuffer)
269                         continue;
270
271                 mem = fh->buffers.buffer[i].v4l.fbuffer;
272                 for (off = 0; off < fh->buffers.buffer_size;
273                      off += PAGE_SIZE)
274                         ClearPageReserved(virt_to_page(mem + off));
275                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
276                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
277         }
278
279         fh->buffers.allocated = 0;
280 }
281
282 /*
283  *   Allocate the MJPEG grab buffers.
284  *
285  *   If a Natoma chipset is present and this is a revision 1 zr36057,
286  *   each MJPEG buffer needs to be physically contiguous.
287  *   (RJ: This statement is from Dave Perks' original driver,
288  *   I could never check it because I have a zr36067)
289  *
290  *   RJ: The contents grab buffers needs never be accessed in the driver.
291  *       Therefore there is no need to allocate them with vmalloc in order
292  *       to get a contiguous virtual memory space.
293  *       I don't understand why many other drivers first allocate them with
294  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
295  *       virtual addresses) and then again have to make a lot of efforts
296  *       to get the physical address.
297  *
298  *   Ben Capper:
299  *       On big-endian architectures (such as ppc) some extra steps
300  *       are needed. When reading and writing to the stat_com array
301  *       and fragment buffers, the device expects to see little-
302  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
303  *       in this function (and one or two others in zoran_device.c)
304  *       ensure that these values are always stored in little-endian
305  *       form, regardless of architecture. The zr36057 does Very Bad
306  *       Things on big endian architectures if the stat_com array
307  *       and fragment buffers are not little-endian.
308  */
309
310 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
311 {
312         struct zoran *zr = fh->zr;
313         int i, j, off;
314         u8 *mem;
315
316         for (i = 0; i < fh->buffers.num_buffers; i++) {
317                 if (fh->buffers.buffer[i].jpg.frag_tab)
318                         dprintk(2,
319                                 KERN_WARNING
320                                 "%s: %s - buffer %d already allocated!?\n",
321                                 ZR_DEVNAME(zr), __func__, i);
322
323                 /* Allocate fragment table for this buffer */
324
325                 mem = (void *)get_zeroed_page(GFP_KERNEL);
326                 if (mem == 0) {
327                         dprintk(1,
328                                 KERN_ERR
329                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
330                                 ZR_DEVNAME(zr), __func__, i);
331                         jpg_fbuffer_free(fh);
332                         return -ENOBUFS;
333                 }
334                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
335                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
336
337                 if (fh->buffers.need_contiguous) {
338                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
339                         if (mem == NULL) {
340                                 dprintk(1,
341                                         KERN_ERR
342                                         "%s: %s - kmalloc failed for buffer %d\n",
343                                         ZR_DEVNAME(zr), __func__, i);
344                                 jpg_fbuffer_free(fh);
345                                 return -ENOBUFS;
346                         }
347                         fh->buffers.buffer[i].jpg.frag_tab[0] =
348                                 cpu_to_le32(virt_to_bus(mem));
349                         fh->buffers.buffer[i].jpg.frag_tab[1] =
350                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
351                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
352                                 SetPageReserved(virt_to_page(mem + off));
353                 } else {
354                         /* jpg_bufsize is already page aligned */
355                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
356                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
357                                 if (mem == NULL) {
358                                         dprintk(1,
359                                                 KERN_ERR
360                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
361                                                 ZR_DEVNAME(zr), __func__, i);
362                                         jpg_fbuffer_free(fh);
363                                         return -ENOBUFS;
364                                 }
365
366                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
367                                         cpu_to_le32(virt_to_bus(mem));
368                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
369                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
370                                 SetPageReserved(virt_to_page(mem));
371                         }
372
373                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
374                 }
375         }
376
377         dprintk(4,
378                 KERN_DEBUG "%s: %s - %d KB allocated\n",
379                 ZR_DEVNAME(zr), __func__,
380                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
381
382         fh->buffers.allocated = 1;
383
384         return 0;
385 }
386
387 /* free the MJPEG grab buffers */
388 static void jpg_fbuffer_free(struct zoran_fh *fh)
389 {
390         struct zoran *zr = fh->zr;
391         int i, j, off;
392         unsigned char *mem;
393         __le32 frag_tab;
394         struct zoran_buffer *buffer;
395
396         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
397
398         for (i = 0, buffer = &fh->buffers.buffer[0];
399              i < fh->buffers.num_buffers; i++, buffer++) {
400                 if (!buffer->jpg.frag_tab)
401                         continue;
402
403                 if (fh->buffers.need_contiguous) {
404                         frag_tab = buffer->jpg.frag_tab[0];
405
406                         if (frag_tab) {
407                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
408                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
409                                         ClearPageReserved(virt_to_page(mem + off));
410                                 kfree(mem);
411                                 buffer->jpg.frag_tab[0] = 0;
412                                 buffer->jpg.frag_tab[1] = 0;
413                         }
414                 } else {
415                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
416                                 frag_tab = buffer->jpg.frag_tab[2 * j];
417
418                                 if (!frag_tab)
419                                         break;
420                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
421                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
422                                 buffer->jpg.frag_tab[2 * j] = 0;
423                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
424                         }
425                 }
426
427                 free_page((unsigned long)buffer->jpg.frag_tab);
428                 buffer->jpg.frag_tab = NULL;
429         }
430
431         fh->buffers.allocated = 0;
432 }
433
434 /*
435  *   V4L Buffer grabbing
436  */
437
438 static int
439 zoran_v4l_set_format (struct zoran_fh           *fh,
440                       int                        width,
441                       int                        height,
442                       const struct zoran_format *format)
443 {
444         struct zoran *zr = fh->zr;
445         int bpp;
446
447         /* Check size and format of the grab wanted */
448
449         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
450             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
451                 dprintk(1,
452                         KERN_ERR
453                         "%s: %s - wrong frame size (%dx%d)\n",
454                         ZR_DEVNAME(zr), __func__, width, height);
455                 return -EINVAL;
456         }
457
458         bpp = (format->depth + 7) / 8;
459
460         /* Check against available buffer size */
461         if (height * width * bpp > fh->buffers.buffer_size) {
462                 dprintk(1,
463                         KERN_ERR
464                         "%s: %s - video buffer size (%d kB) is too small\n",
465                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
466                 return -EINVAL;
467         }
468
469         /* The video front end needs 4-byte alinged line sizes */
470
471         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
472                 dprintk(1,
473                         KERN_ERR
474                         "%s: %s - wrong frame alignment\n",
475                         ZR_DEVNAME(zr), __func__);
476                 return -EINVAL;
477         }
478
479         fh->v4l_settings.width = width;
480         fh->v4l_settings.height = height;
481         fh->v4l_settings.format = format;
482         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
483
484         return 0;
485 }
486
487 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
488 {
489         struct zoran *zr = fh->zr;
490         unsigned long flags;
491         int res = 0;
492
493         if (!fh->buffers.allocated) {
494                 dprintk(1,
495                         KERN_ERR
496                         "%s: %s - buffers not yet allocated\n",
497                         ZR_DEVNAME(zr), __func__);
498                 res = -ENOMEM;
499         }
500
501         /* No grabbing outside the buffer range! */
502         if (num >= fh->buffers.num_buffers || num < 0) {
503                 dprintk(1,
504                         KERN_ERR
505                         "%s: %s - buffer %d is out of range\n",
506                         ZR_DEVNAME(zr), __func__, num);
507                 res = -EINVAL;
508         }
509
510         spin_lock_irqsave(&zr->spinlock, flags);
511
512         if (fh->buffers.active == ZORAN_FREE) {
513                 if (zr->v4l_buffers.active == ZORAN_FREE) {
514                         zr->v4l_buffers = fh->buffers;
515                         fh->buffers.active = ZORAN_ACTIVE;
516                 } else {
517                         dprintk(1,
518                                 KERN_ERR
519                                 "%s: %s - another session is already capturing\n",
520                                 ZR_DEVNAME(zr), __func__);
521                         res = -EBUSY;
522                 }
523         }
524
525         /* make sure a grab isn't going on currently with this buffer */
526         if (!res) {
527                 switch (zr->v4l_buffers.buffer[num].state) {
528                 default:
529                 case BUZ_STATE_PEND:
530                         if (zr->v4l_buffers.active == ZORAN_FREE) {
531                                 fh->buffers.active = ZORAN_FREE;
532                                 zr->v4l_buffers.allocated = 0;
533                         }
534                         res = -EBUSY;   /* what are you doing? */
535                         break;
536                 case BUZ_STATE_DONE:
537                         dprintk(2,
538                                 KERN_WARNING
539                                 "%s: %s - queueing buffer %d in state DONE!?\n",
540                                 ZR_DEVNAME(zr), __func__, num);
541                 case BUZ_STATE_USER:
542                         /* since there is at least one unused buffer there's room for at least
543                          * one more pend[] entry */
544                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
545                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
546                         zr->v4l_buffers.buffer[num].bs.length =
547                             fh->v4l_settings.bytesperline *
548                             zr->v4l_settings.height;
549                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
550                         break;
551                 }
552         }
553
554         spin_unlock_irqrestore(&zr->spinlock, flags);
555
556         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
557                 zr->v4l_buffers.active = fh->buffers.active;
558
559         return res;
560 }
561
562 /*
563  * Sync on a V4L buffer
564  */
565
566 static int v4l_sync(struct zoran_fh *fh, int frame)
567 {
568         struct zoran *zr = fh->zr;
569         unsigned long flags;
570
571         if (fh->buffers.active == ZORAN_FREE) {
572                 dprintk(1,
573                         KERN_ERR
574                         "%s: %s - no grab active for this session\n",
575                         ZR_DEVNAME(zr), __func__);
576                 return -EINVAL;
577         }
578
579         /* check passed-in frame number */
580         if (frame >= fh->buffers.num_buffers || frame < 0) {
581                 dprintk(1,
582                         KERN_ERR "%s: %s - frame %d is invalid\n",
583                         ZR_DEVNAME(zr), __func__, frame);
584                 return -EINVAL;
585         }
586
587         /* Check if is buffer was queued at all */
588         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
589                 dprintk(1,
590                         KERN_ERR
591                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
592                         ZR_DEVNAME(zr), __func__);
593                 return -EPROTO;
594         }
595
596         /* wait on this buffer to get ready */
597         if (!wait_event_interruptible_timeout(zr->v4l_capq,
598                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
599                 return -ETIME;
600         if (signal_pending(current))
601                 return -ERESTARTSYS;
602
603         /* buffer should now be in BUZ_STATE_DONE */
604         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
605                 dprintk(2,
606                         KERN_ERR "%s: %s - internal state error\n",
607                         ZR_DEVNAME(zr), __func__);
608
609         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
610         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
611
612         spin_lock_irqsave(&zr->spinlock, flags);
613
614         /* Check if streaming capture has finished */
615         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
616                 zr36057_set_memgrab(zr, 0);
617                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
618                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
619                         zr->v4l_buffers.allocated = 0;
620                 }
621         }
622
623         spin_unlock_irqrestore(&zr->spinlock, flags);
624
625         return 0;
626 }
627
628 /*
629  *   Queue a MJPEG buffer for capture/playback
630  */
631
632 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
633                                  enum zoran_codec_mode mode)
634 {
635         struct zoran *zr = fh->zr;
636         unsigned long flags;
637         int res = 0;
638
639         /* Check if buffers are allocated */
640         if (!fh->buffers.allocated) {
641                 dprintk(1,
642                         KERN_ERR
643                         "%s: %s - buffers not yet allocated\n",
644                         ZR_DEVNAME(zr), __func__);
645                 return -ENOMEM;
646         }
647
648         /* No grabbing outside the buffer range! */
649         if (num >= fh->buffers.num_buffers || num < 0) {
650                 dprintk(1,
651                         KERN_ERR
652                         "%s: %s - buffer %d out of range\n",
653                         ZR_DEVNAME(zr), __func__, num);
654                 return -EINVAL;
655         }
656
657         /* what is the codec mode right now? */
658         if (zr->codec_mode == BUZ_MODE_IDLE) {
659                 zr->jpg_settings = fh->jpg_settings;
660         } else if (zr->codec_mode != mode) {
661                 /* wrong codec mode active - invalid */
662                 dprintk(1,
663                         KERN_ERR
664                         "%s: %s - codec in wrong mode\n",
665                         ZR_DEVNAME(zr), __func__);
666                 return -EINVAL;
667         }
668
669         if (fh->buffers.active == ZORAN_FREE) {
670                 if (zr->jpg_buffers.active == ZORAN_FREE) {
671                         zr->jpg_buffers = fh->buffers;
672                         fh->buffers.active = ZORAN_ACTIVE;
673                 } else {
674                         dprintk(1,
675                                 KERN_ERR
676                                 "%s: %s - another session is already capturing\n",
677                                 ZR_DEVNAME(zr), __func__);
678                         res = -EBUSY;
679                 }
680         }
681
682         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
683                 /* Ok load up the jpeg codec */
684                 zr36057_enable_jpg(zr, mode);
685         }
686
687         spin_lock_irqsave(&zr->spinlock, flags);
688
689         if (!res) {
690                 switch (zr->jpg_buffers.buffer[num].state) {
691                 case BUZ_STATE_DONE:
692                         dprintk(2,
693                                 KERN_WARNING
694                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
695                                 ZR_DEVNAME(zr), __func__);
696                 case BUZ_STATE_USER:
697                         /* since there is at least one unused buffer there's room for at
698                          *least one more pend[] entry */
699                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
700                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
701                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
702                         zoran_feed_stat_com(zr);
703                         break;
704                 default:
705                 case BUZ_STATE_DMA:
706                 case BUZ_STATE_PEND:
707                         if (zr->jpg_buffers.active == ZORAN_FREE) {
708                                 fh->buffers.active = ZORAN_FREE;
709                                 zr->jpg_buffers.allocated = 0;
710                         }
711                         res = -EBUSY;   /* what are you doing? */
712                         break;
713                 }
714         }
715
716         spin_unlock_irqrestore(&zr->spinlock, flags);
717
718         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
719                 zr->jpg_buffers.active = fh->buffers.active;
720
721         return res;
722 }
723
724 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
725 {
726         struct zoran *zr = fh->zr;
727         int res = 0;
728
729         /* Does the user want to stop streaming? */
730         if (frame < 0) {
731                 if (zr->codec_mode == mode) {
732                         if (fh->buffers.active == ZORAN_FREE) {
733                                 dprintk(1,
734                                         KERN_ERR
735                                         "%s: %s(-1) - session not active\n",
736                                         ZR_DEVNAME(zr), __func__);
737                                 return -EINVAL;
738                         }
739                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
740                         zr->jpg_buffers.allocated = 0;
741                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
742                         return 0;
743                 } else {
744                         dprintk(1,
745                                 KERN_ERR
746                                 "%s: %s - stop streaming but not in streaming mode\n",
747                                 ZR_DEVNAME(zr), __func__);
748                         return -EINVAL;
749                 }
750         }
751
752         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
753                 return res;
754
755         /* Start the jpeg codec when the first frame is queued  */
756         if (!res && zr->jpg_que_head == 1)
757                 jpeg_start(zr);
758
759         return res;
760 }
761
762 /*
763  *   Sync on a MJPEG buffer
764  */
765
766 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
767 {
768         struct zoran *zr = fh->zr;
769         unsigned long flags;
770         int frame;
771
772         if (fh->buffers.active == ZORAN_FREE) {
773                 dprintk(1,
774                         KERN_ERR
775                         "%s: %s - capture is not currently active\n",
776                         ZR_DEVNAME(zr), __func__);
777                 return -EINVAL;
778         }
779         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
780             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
781                 dprintk(1,
782                         KERN_ERR
783                         "%s: %s - codec not in streaming mode\n",
784                         ZR_DEVNAME(zr), __func__);
785                 return -EINVAL;
786         }
787         if (!wait_event_interruptible_timeout(zr->jpg_capq,
788                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
789                          zr->jpg_dma_tail == zr->jpg_dma_head),
790                         10*HZ)) {
791                 int isr;
792
793                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
794                 udelay(1);
795                 zr->codec->control(zr->codec, CODEC_G_STATUS,
796                                            sizeof(isr), &isr);
797                 dprintk(1,
798                         KERN_ERR
799                         "%s: %s - timeout: codec isr=0x%02x\n",
800                         ZR_DEVNAME(zr), __func__, isr);
801
802                 return -ETIME;
803
804         }
805         if (signal_pending(current))
806                 return -ERESTARTSYS;
807
808         spin_lock_irqsave(&zr->spinlock, flags);
809
810         if (zr->jpg_dma_tail != zr->jpg_dma_head)
811                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
812         else
813                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
814
815         /* buffer should now be in BUZ_STATE_DONE */
816         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
817                 dprintk(2,
818                         KERN_ERR "%s: %s - internal state error\n",
819                         ZR_DEVNAME(zr), __func__);
820
821         *bs = zr->jpg_buffers.buffer[frame].bs;
822         bs->frame = frame;
823         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
824         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
825
826         spin_unlock_irqrestore(&zr->spinlock, flags);
827
828         return 0;
829 }
830
831 static void zoran_open_init_session(struct zoran_fh *fh)
832 {
833         int i;
834         struct zoran *zr = fh->zr;
835
836         /* Per default, map the V4L Buffers */
837         map_mode_raw(fh);
838
839         /* take over the card's current settings */
840         fh->overlay_settings = zr->overlay_settings;
841         fh->overlay_settings.is_set = 0;
842         fh->overlay_settings.format = zr->overlay_settings.format;
843         fh->overlay_active = ZORAN_FREE;
844
845         /* v4l settings */
846         fh->v4l_settings = zr->v4l_settings;
847         /* jpg settings */
848         fh->jpg_settings = zr->jpg_settings;
849
850         /* buffers */
851         memset(&fh->buffers, 0, sizeof(fh->buffers));
852         for (i = 0; i < MAX_FRAME; i++) {
853                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
854                 fh->buffers.buffer[i].bs.frame = i;
855         }
856         fh->buffers.allocated = 0;
857         fh->buffers.active = ZORAN_FREE;
858 }
859
860 static void zoran_close_end_session(struct zoran_fh *fh)
861 {
862         struct zoran *zr = fh->zr;
863
864         /* overlay */
865         if (fh->overlay_active != ZORAN_FREE) {
866                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
867                 zr->v4l_overlay_active = 0;
868                 if (!zr->v4l_memgrab_active)
869                         zr36057_overlay(zr, 0);
870                 zr->overlay_mask = NULL;
871         }
872
873         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
874                 /* v4l capture */
875                 if (fh->buffers.active != ZORAN_FREE) {
876                         unsigned long flags;
877
878                         spin_lock_irqsave(&zr->spinlock, flags);
879                         zr36057_set_memgrab(zr, 0);
880                         zr->v4l_buffers.allocated = 0;
881                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
882                         spin_unlock_irqrestore(&zr->spinlock, flags);
883                 }
884
885                 /* v4l buffers */
886                 if (fh->buffers.allocated)
887                         v4l_fbuffer_free(fh);
888         } else {
889                 /* jpg capture */
890                 if (fh->buffers.active != ZORAN_FREE) {
891                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
892                         zr->jpg_buffers.allocated = 0;
893                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
894                 }
895
896                 /* jpg buffers */
897                 if (fh->buffers.allocated)
898                         jpg_fbuffer_free(fh);
899         }
900 }
901
902 /*
903  *   Open a zoran card. Right now the flags stuff is just playing
904  */
905
906 static int zoran_open(struct file *file)
907 {
908         struct zoran *zr = video_drvdata(file);
909         struct zoran_fh *fh;
910         int res, first_open = 0;
911
912         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
913                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
914
915         lock_kernel();
916
917         if (zr->user >= 2048) {
918                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
919                         ZR_DEVNAME(zr), zr->user);
920                 res = -EBUSY;
921                 goto fail_unlock;
922         }
923
924         /* now, create the open()-specific file_ops struct */
925         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
926         if (!fh) {
927                 dprintk(1,
928                         KERN_ERR
929                         "%s: %s - allocation of zoran_fh failed\n",
930                         ZR_DEVNAME(zr), __func__);
931                 res = -ENOMEM;
932                 goto fail_unlock;
933         }
934         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
935          * on norm-change! */
936         fh->overlay_mask =
937             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
938         if (!fh->overlay_mask) {
939                 dprintk(1,
940                         KERN_ERR
941                         "%s: %s - allocation of overlay_mask failed\n",
942                         ZR_DEVNAME(zr), __func__);
943                 res = -ENOMEM;
944                 goto fail_fh;
945         }
946
947         if (zr->user++ == 0)
948                 first_open = 1;
949
950         /*mutex_unlock(&zr->resource_lock);*/
951
952         /* default setup - TODO: look at flags */
953         if (first_open) {       /* First device open */
954                 zr36057_restart(zr);
955                 zoran_open_init_params(zr);
956                 zoran_init_hardware(zr);
957
958                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
959         }
960
961         /* set file_ops stuff */
962         file->private_data = fh;
963         fh->zr = zr;
964         zoran_open_init_session(fh);
965         unlock_kernel();
966
967         return 0;
968
969 fail_fh:
970         kfree(fh);
971 fail_unlock:
972         unlock_kernel();
973
974         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
975                 ZR_DEVNAME(zr), res, zr->user);
976
977         return res;
978 }
979
980 static int
981 zoran_close(struct file  *file)
982 {
983         struct zoran_fh *fh = file->private_data;
984         struct zoran *zr = fh->zr;
985
986         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
987                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
988
989         /* kernel locks (fs/device.c), so don't do that ourselves
990          * (prevents deadlocks) */
991         /*mutex_lock(&zr->resource_lock);*/
992
993         zoran_close_end_session(fh);
994
995         if (zr->user-- == 1) {  /* Last process */
996                 /* Clean up JPEG process */
997                 wake_up_interruptible(&zr->jpg_capq);
998                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
999                 zr->jpg_buffers.allocated = 0;
1000                 zr->jpg_buffers.active = ZORAN_FREE;
1001
1002                 /* disable interrupts */
1003                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1004
1005                 if (zr36067_debug > 1)
1006                         print_interrupts(zr);
1007
1008                 /* Overlay off */
1009                 zr->v4l_overlay_active = 0;
1010                 zr36057_overlay(zr, 0);
1011                 zr->overlay_mask = NULL;
1012
1013                 /* capture off */
1014                 wake_up_interruptible(&zr->v4l_capq);
1015                 zr36057_set_memgrab(zr, 0);
1016                 zr->v4l_buffers.allocated = 0;
1017                 zr->v4l_buffers.active = ZORAN_FREE;
1018                 zoran_set_pci_master(zr, 0);
1019
1020                 if (!pass_through) {    /* Switch to color bar */
1021                         decoder_call(zr, video, s_stream, 0);
1022                         encoder_call(zr, video, s_routing, 2, 0, 0);
1023                 }
1024         }
1025
1026         file->private_data = NULL;
1027         kfree(fh->overlay_mask);
1028         kfree(fh);
1029
1030         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1031
1032         return 0;
1033 }
1034
1035
1036 static ssize_t
1037 zoran_read (struct file *file,
1038             char        __user *data,
1039             size_t       count,
1040             loff_t      *ppos)
1041 {
1042         /* we simply don't support read() (yet)... */
1043
1044         return -EINVAL;
1045 }
1046
1047 static ssize_t
1048 zoran_write (struct file *file,
1049              const char  __user *data,
1050              size_t       count,
1051              loff_t      *ppos)
1052 {
1053         /* ...and the same goes for write() */
1054
1055         return -EINVAL;
1056 }
1057
1058 static int setup_fbuffer(struct zoran_fh *fh,
1059                void                      *base,
1060                const struct zoran_format *fmt,
1061                int                        width,
1062                int                        height,
1063                int                        bytesperline)
1064 {
1065         struct zoran *zr = fh->zr;
1066
1067         /* (Ronald) v4l/v4l2 guidelines */
1068         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1069                 return -EPERM;
1070
1071         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1072            ALi Magik (that needs very low latency while the card needs a
1073            higher value always) */
1074
1075         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1076                 return -ENXIO;
1077
1078         /* we need a bytesperline value, even if not given */
1079         if (!bytesperline)
1080                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1081
1082 #if 0
1083         if (zr->overlay_active) {
1084                 /* dzjee... stupid users... don't even bother to turn off
1085                  * overlay before changing the memory location...
1086                  * normally, we would return errors here. However, one of
1087                  * the tools that does this is... xawtv! and since xawtv
1088                  * is used by +/- 99% of the users, we'd rather be user-
1089                  * friendly and silently do as if nothing went wrong */
1090                 dprintk(3,
1091                         KERN_ERR
1092                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1093                         ZR_DEVNAME(zr), __func__);
1094                 zr36057_overlay(zr, 0);
1095         }
1096 #endif
1097
1098         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1099                 dprintk(1,
1100                         KERN_ERR
1101                         "%s: %s - no valid overlay format given\n",
1102                         ZR_DEVNAME(zr), __func__);
1103                 return -EINVAL;
1104         }
1105         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1106                 dprintk(1,
1107                         KERN_ERR
1108                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1109                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1110                 return -EINVAL;
1111         }
1112         if (bytesperline & 3) {
1113                 dprintk(1,
1114                         KERN_ERR
1115                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1116                         ZR_DEVNAME(zr), __func__, bytesperline);
1117                 return -EINVAL;
1118         }
1119
1120         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1121         zr->vbuf_height = height;
1122         zr->vbuf_width = width;
1123         zr->vbuf_depth = fmt->depth;
1124         zr->overlay_settings.format = fmt;
1125         zr->vbuf_bytesperline = bytesperline;
1126
1127         /* The user should set new window parameters */
1128         zr->overlay_settings.is_set = 0;
1129
1130         return 0;
1131 }
1132
1133
1134 static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height,
1135         struct v4l2_clip __user *clips, int clipcount, void __user *bitmap)
1136 {
1137         struct zoran *zr = fh->zr;
1138         struct v4l2_clip *vcp = NULL;
1139         int on, end;
1140
1141
1142         if (!zr->vbuf_base) {
1143                 dprintk(1,
1144                         KERN_ERR
1145                         "%s: %s - frame buffer has to be set first\n",
1146                         ZR_DEVNAME(zr), __func__);
1147                 return -EINVAL;
1148         }
1149
1150         if (!fh->overlay_settings.format) {
1151                 dprintk(1,
1152                         KERN_ERR
1153                         "%s: %s - no overlay format set\n",
1154                         ZR_DEVNAME(zr), __func__);
1155                 return -EINVAL;
1156         }
1157
1158         /*
1159          * The video front end needs 4-byte alinged line sizes, we correct that
1160          * silently here if necessary
1161          */
1162         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1163                 end = (x + width) & ~1; /* round down */
1164                 x = (x + 1) & ~1;       /* round up */
1165                 width = end - x;
1166         }
1167
1168         if (zr->vbuf_depth == 24) {
1169                 end = (x + width) & ~3; /* round down */
1170                 x = (x + 3) & ~3;       /* round up */
1171                 width = end - x;
1172         }
1173
1174         if (width > BUZ_MAX_WIDTH)
1175                 width = BUZ_MAX_WIDTH;
1176         if (height > BUZ_MAX_HEIGHT)
1177                 height = BUZ_MAX_HEIGHT;
1178
1179         /* Check for vaild parameters */
1180         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1181             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1182                 dprintk(1,
1183                         KERN_ERR
1184                         "%s: %s - width = %d or height = %d invalid\n",
1185                         ZR_DEVNAME(zr), __func__, width, height);
1186                 return -EINVAL;
1187         }
1188
1189         fh->overlay_settings.x = x;
1190         fh->overlay_settings.y = y;
1191         fh->overlay_settings.width = width;
1192         fh->overlay_settings.height = height;
1193         fh->overlay_settings.clipcount = clipcount;
1194
1195         /*
1196          * If an overlay is running, we have to switch it off
1197          * and switch it on again in order to get the new settings in effect.
1198          *
1199          * We also want to avoid that the overlay mask is written
1200          * when an overlay is running.
1201          */
1202
1203         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1204             zr->overlay_active != ZORAN_FREE &&
1205             fh->overlay_active != ZORAN_FREE;
1206         if (on)
1207                 zr36057_overlay(zr, 0);
1208
1209         /*
1210          *   Write the overlay mask if clips are wanted.
1211          *   We prefer a bitmap.
1212          */
1213         if (bitmap) {
1214                 /* fake value - it just means we want clips */
1215                 fh->overlay_settings.clipcount = 1;
1216
1217                 if (copy_from_user(fh->overlay_mask, bitmap,
1218                                    (width * height + 7) / 8)) {
1219                         return -EFAULT;
1220                 }
1221         } else if (clipcount > 0) {
1222                 /* write our own bitmap from the clips */
1223                 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1224                 if (vcp == NULL) {
1225                         dprintk(1,
1226                                 KERN_ERR
1227                                 "%s: %s - Alloc of clip mask failed\n",
1228                                 ZR_DEVNAME(zr), __func__);
1229                         return -ENOMEM;
1230                 }
1231                 if (copy_from_user
1232                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1233                         vfree(vcp);
1234                         return -EFAULT;
1235                 }
1236                 write_overlay_mask(fh, vcp, clipcount);
1237                 vfree(vcp);
1238         }
1239
1240         fh->overlay_settings.is_set = 1;
1241         if (fh->overlay_active != ZORAN_FREE &&
1242             zr->overlay_active != ZORAN_FREE)
1243                 zr->overlay_settings = fh->overlay_settings;
1244
1245         if (on)
1246                 zr36057_overlay(zr, 1);
1247
1248         /* Make sure the changes come into effect */
1249         return wait_grab_pending(zr);
1250 }
1251
1252 static int setup_overlay(struct zoran_fh *fh, int on)
1253 {
1254         struct zoran *zr = fh->zr;
1255
1256         /* If there is nothing to do, return immediatly */
1257         if ((on && fh->overlay_active != ZORAN_FREE) ||
1258             (!on && fh->overlay_active == ZORAN_FREE))
1259                 return 0;
1260
1261         /* check whether we're touching someone else's overlay */
1262         if (on && zr->overlay_active != ZORAN_FREE &&
1263             fh->overlay_active == ZORAN_FREE) {
1264                 dprintk(1,
1265                         KERN_ERR
1266                         "%s: %s - overlay is already active for another session\n",
1267                         ZR_DEVNAME(zr), __func__);
1268                 return -EBUSY;
1269         }
1270         if (!on && zr->overlay_active != ZORAN_FREE &&
1271             fh->overlay_active == ZORAN_FREE) {
1272                 dprintk(1,
1273                         KERN_ERR
1274                         "%s: %s - you cannot cancel someone else's session\n",
1275                         ZR_DEVNAME(zr), __func__);
1276                 return -EPERM;
1277         }
1278
1279         if (on == 0) {
1280                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1281                 zr->v4l_overlay_active = 0;
1282                 /* When a grab is running, the video simply
1283                  * won't be switched on any more */
1284                 if (!zr->v4l_memgrab_active)
1285                         zr36057_overlay(zr, 0);
1286                 zr->overlay_mask = NULL;
1287         } else {
1288                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1289                         dprintk(1,
1290                                 KERN_ERR
1291                                 "%s: %s - buffer or window not set\n",
1292                                 ZR_DEVNAME(zr), __func__);
1293                         return -EINVAL;
1294                 }
1295                 if (!fh->overlay_settings.format) {
1296                         dprintk(1,
1297                                 KERN_ERR
1298                                 "%s: %s - no overlay format set\n",
1299                                 ZR_DEVNAME(zr), __func__);
1300                         return -EINVAL;
1301                 }
1302                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1303                 zr->v4l_overlay_active = 1;
1304                 zr->overlay_mask = fh->overlay_mask;
1305                 zr->overlay_settings = fh->overlay_settings;
1306                 if (!zr->v4l_memgrab_active)
1307                         zr36057_overlay(zr, 1);
1308                 /* When a grab is running, the video will be
1309                  * switched on when grab is finished */
1310         }
1311
1312         /* Make sure the changes come into effect */
1313         return wait_grab_pending(zr);
1314 }
1315
1316 /* get the status of a buffer in the clients buffer queue */
1317 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1318                                     struct v4l2_buffer *buf, int num)
1319 {
1320         struct zoran *zr = fh->zr;
1321         unsigned long flags;
1322
1323         buf->flags = V4L2_BUF_FLAG_MAPPED;
1324
1325         switch (fh->map_mode) {
1326         case ZORAN_MAP_MODE_RAW:
1327                 /* check range */
1328                 if (num < 0 || num >= fh->buffers.num_buffers ||
1329                     !fh->buffers.allocated) {
1330                         dprintk(1,
1331                                 KERN_ERR
1332                                 "%s: %s - wrong number or buffers not allocated\n",
1333                                 ZR_DEVNAME(zr), __func__);
1334                         return -EINVAL;
1335                 }
1336
1337                 spin_lock_irqsave(&zr->spinlock, flags);
1338                 dprintk(3,
1339                         KERN_DEBUG
1340                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1341                         ZR_DEVNAME(zr), __func__,
1342                         "FAL"[fh->buffers.active], num,
1343                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1344                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1345                 spin_unlock_irqrestore(&zr->spinlock, flags);
1346
1347                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1348                 buf->length = fh->buffers.buffer_size;
1349
1350                 /* get buffer */
1351                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1352                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1353                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1354                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1355                         buf->flags |= V4L2_BUF_FLAG_DONE;
1356                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1357                 } else {
1358                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1359                 }
1360
1361                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1362                         buf->field = V4L2_FIELD_TOP;
1363                 else
1364                         buf->field = V4L2_FIELD_INTERLACED;
1365
1366                 break;
1367
1368         case ZORAN_MAP_MODE_JPG_REC:
1369         case ZORAN_MAP_MODE_JPG_PLAY:
1370
1371                 /* check range */
1372                 if (num < 0 || num >= fh->buffers.num_buffers ||
1373                     !fh->buffers.allocated) {
1374                         dprintk(1,
1375                                 KERN_ERR
1376                                 "%s: %s - wrong number or buffers not allocated\n",
1377                                 ZR_DEVNAME(zr), __func__);
1378                         return -EINVAL;
1379                 }
1380
1381                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1382                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1383                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1384                 buf->length = fh->buffers.buffer_size;
1385
1386                 /* these variables are only written after frame has been captured */
1387                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1388                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1389                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1390                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1391                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1392                         buf->flags |= V4L2_BUF_FLAG_DONE;
1393                 } else {
1394                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1395                 }
1396
1397                 /* which fields are these? */
1398                 if (fh->jpg_settings.TmpDcm != 1)
1399                         buf->field = fh->jpg_settings.odd_even ?
1400                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1401                 else
1402                         buf->field = fh->jpg_settings.odd_even ?
1403                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1404
1405                 break;
1406
1407         default:
1408
1409                 dprintk(5,
1410                         KERN_ERR
1411                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1412                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1413                 return -EINVAL;
1414         }
1415
1416         buf->memory = V4L2_MEMORY_MMAP;
1417         buf->index = num;
1418         buf->m.offset = buf->length * num;
1419
1420         return 0;
1421 }
1422
1423 static int
1424 zoran_set_norm (struct zoran *zr,
1425                 v4l2_std_id norm)
1426 {
1427         int on;
1428
1429         if (zr->v4l_buffers.active != ZORAN_FREE ||
1430             zr->jpg_buffers.active != ZORAN_FREE) {
1431                 dprintk(1,
1432                         KERN_WARNING
1433                         "%s: %s called while in playback/capture mode\n",
1434                         ZR_DEVNAME(zr), __func__);
1435                 return -EBUSY;
1436         }
1437
1438         if (!(norm & zr->card.norms)) {
1439                 dprintk(1,
1440                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1441                         ZR_DEVNAME(zr), __func__, norm);
1442                 return -EINVAL;
1443         }
1444
1445         if (norm == V4L2_STD_ALL) {
1446                 int status = 0;
1447                 v4l2_std_id std = 0;
1448
1449                 decoder_call(zr, video, querystd, &std);
1450                 decoder_call(zr, core, s_std, std);
1451
1452                 /* let changes come into effect */
1453                 ssleep(2);
1454
1455                 decoder_call(zr, video, g_input_status, &status);
1456                 if (status & V4L2_IN_ST_NO_SIGNAL) {
1457                         dprintk(1,
1458                                 KERN_ERR
1459                                 "%s: %s - no norm detected\n",
1460                                 ZR_DEVNAME(zr), __func__);
1461                         /* reset norm */
1462                         decoder_call(zr, core, s_std, zr->norm);
1463                         return -EIO;
1464                 }
1465
1466                 norm = std;
1467         }
1468         if (norm & V4L2_STD_SECAM)
1469                 zr->timing = zr->card.tvn[2];
1470         else if (norm & V4L2_STD_NTSC)
1471                 zr->timing = zr->card.tvn[1];
1472         else
1473                 zr->timing = zr->card.tvn[0];
1474
1475         /* We switch overlay off and on since a change in the
1476          * norm needs different VFE settings */
1477         on = zr->overlay_active && !zr->v4l_memgrab_active;
1478         if (on)
1479                 zr36057_overlay(zr, 0);
1480
1481         decoder_call(zr, core, s_std, norm);
1482         encoder_call(zr, video, s_std_output, norm);
1483
1484         if (on)
1485                 zr36057_overlay(zr, 1);
1486
1487         /* Make sure the changes come into effect */
1488         zr->norm = norm;
1489
1490         return 0;
1491 }
1492
1493 static int
1494 zoran_set_input (struct zoran *zr,
1495                  int           input)
1496 {
1497         if (input == zr->input) {
1498                 return 0;
1499         }
1500
1501         if (zr->v4l_buffers.active != ZORAN_FREE ||
1502             zr->jpg_buffers.active != ZORAN_FREE) {
1503                 dprintk(1,
1504                         KERN_WARNING
1505                         "%s: %s called while in playback/capture mode\n",
1506                         ZR_DEVNAME(zr), __func__);
1507                 return -EBUSY;
1508         }
1509
1510         if (input < 0 || input >= zr->card.inputs) {
1511                 dprintk(1,
1512                         KERN_ERR
1513                         "%s: %s - unnsupported input %d\n",
1514                         ZR_DEVNAME(zr), __func__, input);
1515                 return -EINVAL;
1516         }
1517
1518         zr->input = input;
1519
1520         decoder_call(zr, video, s_routing,
1521                         zr->card.input[input].muxsel, 0, 0);
1522
1523         return 0;
1524 }
1525
1526 /*
1527  *   ioctl routine
1528  */
1529
1530 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1531 static long zoran_default(struct file *file, void *__fh, int cmd, void *arg)
1532 {
1533         struct zoran_fh *fh = __fh;
1534         struct zoran *zr = fh->zr;
1535         struct zoran_jpg_settings settings;
1536
1537         switch (cmd) {
1538         case BUZIOC_G_PARAMS:
1539         {
1540                 struct zoran_params *bparams = arg;
1541
1542                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
1543
1544                 memset(bparams, 0, sizeof(struct zoran_params));
1545                 bparams->major_version = MAJOR_VERSION;
1546                 bparams->minor_version = MINOR_VERSION;
1547
1548                 mutex_lock(&zr->resource_lock);
1549
1550                 if (zr->norm & V4L2_STD_NTSC)
1551                         bparams->norm = VIDEO_MODE_NTSC;
1552                 else if (zr->norm & V4L2_STD_PAL)
1553                         bparams->norm = VIDEO_MODE_PAL;
1554                 else
1555                         bparams->norm = VIDEO_MODE_SECAM;
1556
1557                 bparams->input = zr->input;
1558
1559                 bparams->decimation = fh->jpg_settings.decimation;
1560                 bparams->HorDcm = fh->jpg_settings.HorDcm;
1561                 bparams->VerDcm = fh->jpg_settings.VerDcm;
1562                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
1563                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
1564                 bparams->img_x = fh->jpg_settings.img_x;
1565                 bparams->img_y = fh->jpg_settings.img_y;
1566                 bparams->img_width = fh->jpg_settings.img_width;
1567                 bparams->img_height = fh->jpg_settings.img_height;
1568                 bparams->odd_even = fh->jpg_settings.odd_even;
1569
1570                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
1571                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
1572                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
1573                 memcpy(bparams->APP_data,
1574                        fh->jpg_settings.jpg_comp.APP_data,
1575                        sizeof(bparams->APP_data));
1576                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
1577                 memcpy(bparams->COM_data,
1578                        fh->jpg_settings.jpg_comp.COM_data,
1579                        sizeof(bparams->COM_data));
1580                 bparams->jpeg_markers =
1581                     fh->jpg_settings.jpg_comp.jpeg_markers;
1582
1583                 mutex_unlock(&zr->resource_lock);
1584
1585                 bparams->VFIFO_FB = 0;
1586
1587                 return 0;
1588         }
1589
1590         case BUZIOC_S_PARAMS:
1591         {
1592                 struct zoran_params *bparams = arg;
1593                 int res = 0;
1594
1595                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
1596
1597                 settings.decimation = bparams->decimation;
1598                 settings.HorDcm = bparams->HorDcm;
1599                 settings.VerDcm = bparams->VerDcm;
1600                 settings.TmpDcm = bparams->TmpDcm;
1601                 settings.field_per_buff = bparams->field_per_buff;
1602                 settings.img_x = bparams->img_x;
1603                 settings.img_y = bparams->img_y;
1604                 settings.img_width = bparams->img_width;
1605                 settings.img_height = bparams->img_height;
1606                 settings.odd_even = bparams->odd_even;
1607
1608                 settings.jpg_comp.quality = bparams->quality;
1609                 settings.jpg_comp.APPn = bparams->APPn;
1610                 settings.jpg_comp.APP_len = bparams->APP_len;
1611                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
1612                        sizeof(bparams->APP_data));
1613                 settings.jpg_comp.COM_len = bparams->COM_len;
1614                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
1615                        sizeof(bparams->COM_data));
1616                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
1617
1618                 mutex_lock(&zr->resource_lock);
1619
1620                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1621                         dprintk(1,
1622                                 KERN_ERR
1623                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
1624                                 ZR_DEVNAME(zr));
1625                         res = -EINVAL;
1626                         goto sparams_unlock_and_return;
1627                 }
1628
1629                 /* Check the params first before overwriting our
1630                  * nternal values */
1631                 if (zoran_check_jpg_settings(zr, &settings, 0)) {
1632                         res = -EINVAL;
1633                         goto sparams_unlock_and_return;
1634                 }
1635
1636                 fh->jpg_settings = settings;
1637 sparams_unlock_and_return:
1638                 mutex_unlock(&zr->resource_lock);
1639
1640                 return res;
1641         }
1642
1643         case BUZIOC_REQBUFS:
1644         {
1645                 struct zoran_requestbuffers *breq = arg;
1646                 int res = 0;
1647
1648                 dprintk(3,
1649                         KERN_DEBUG
1650                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
1651                         ZR_DEVNAME(zr), breq->count, breq->size);
1652
1653                 /* Enforce reasonable lower and upper limits */
1654                 if (breq->count < 4)
1655                         breq->count = 4;        /* Could be choosen smaller */
1656                 if (breq->count > jpg_nbufs)
1657                         breq->count = jpg_nbufs;
1658                 breq->size = PAGE_ALIGN(breq->size);
1659                 if (breq->size < 8192)
1660                         breq->size = 8192;      /* Arbitrary */
1661                 /* breq->size is limited by 1 page for the stat_com
1662                  * tables to a Maximum of 2 MB */
1663                 if (breq->size > jpg_bufsize)
1664                         breq->size = jpg_bufsize;
1665
1666                 mutex_lock(&zr->resource_lock);
1667
1668                 if (fh->buffers.allocated) {
1669                         dprintk(1,
1670                                 KERN_ERR
1671                                 "%s: BUZIOC_REQBUFS - buffers already allocated\n",
1672                                 ZR_DEVNAME(zr));
1673                         res = -EBUSY;
1674                         goto jpgreqbuf_unlock_and_return;
1675                 }
1676
1677                 /* The next mmap will map the MJPEG buffers - could
1678                  * also be *_PLAY, but it doesn't matter here */
1679                 map_mode_jpg(fh, 0);
1680                 fh->buffers.num_buffers = breq->count;
1681                 fh->buffers.buffer_size = breq->size;
1682
1683                 if (jpg_fbuffer_alloc(fh)) {
1684                         res = -ENOMEM;
1685                         goto jpgreqbuf_unlock_and_return;
1686                 }
1687
1688 jpgreqbuf_unlock_and_return:
1689                 mutex_unlock(&zr->resource_lock);
1690
1691                 return res;
1692         }
1693
1694         case BUZIOC_QBUF_CAPT:
1695         {
1696                 int *frame = arg, res;
1697
1698                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
1699                         ZR_DEVNAME(zr), *frame);
1700
1701                 mutex_lock(&zr->resource_lock);
1702                 res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_COMPRESS);
1703                 mutex_unlock(&zr->resource_lock);
1704
1705                 return res;
1706         }
1707
1708         case BUZIOC_QBUF_PLAY:
1709         {
1710                 int *frame = arg, res;
1711
1712                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
1713                         ZR_DEVNAME(zr), *frame);
1714
1715                 mutex_lock(&zr->resource_lock);
1716                 res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_DECOMPRESS);
1717                 mutex_unlock(&zr->resource_lock);
1718
1719                 return res;
1720         }
1721
1722         case BUZIOC_SYNC:
1723         {
1724                 struct zoran_sync *bsync = arg;
1725                 int res;
1726
1727                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
1728
1729                 mutex_lock(&zr->resource_lock);
1730
1731                 if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
1732                         dprintk(2, KERN_WARNING
1733                                 "%s: %s - not in jpg capture mode\n",
1734                                 ZR_DEVNAME(zr), __func__);
1735                         res = -EINVAL;
1736                 } else {
1737                         res = jpg_sync(fh, bsync);
1738                 }
1739                 mutex_unlock(&zr->resource_lock);
1740
1741                 return res;
1742         }
1743
1744         case BUZIOC_G_STATUS:
1745         {
1746                 struct zoran_status *bstat = arg;
1747                 int status = 0, res = 0;
1748                 v4l2_std_id norm;
1749
1750                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
1751
1752                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1753                         dprintk(1,
1754                                 KERN_ERR
1755                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
1756                                 ZR_DEVNAME(zr));
1757                         return -EINVAL;
1758                 }
1759
1760                 mutex_lock(&zr->resource_lock);
1761
1762                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1763                         dprintk(1,
1764                                 KERN_ERR
1765                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
1766                                 ZR_DEVNAME(zr));
1767                         res = -EINVAL;
1768                         goto gstat_unlock_and_return;
1769                 }
1770
1771                 decoder_call(zr, video, s_routing,
1772                                 zr->card.input[bstat->input].muxsel, 0, 0);
1773
1774                 /* sleep 1 second */
1775                 ssleep(1);
1776
1777                 /* Get status of video decoder */
1778                 decoder_call(zr, video, querystd, &norm);
1779                 decoder_call(zr, video, g_input_status, &status);
1780
1781                 /* restore previous input and norm */
1782                 decoder_call(zr, video, s_routing,
1783                                 zr->card.input[zr->input].muxsel, 0, 0);
1784 gstat_unlock_and_return:
1785                 mutex_unlock(&zr->resource_lock);
1786
1787                 if (!res) {
1788                         bstat->signal =
1789                             (status & V4L2_IN_ST_NO_SIGNAL) ? 0 : 1;
1790                         if (norm & V4L2_STD_NTSC)
1791                                 bstat->norm = VIDEO_MODE_NTSC;
1792                         else if (norm & V4L2_STD_SECAM)
1793                                 bstat->norm = VIDEO_MODE_SECAM;
1794                         else
1795                                 bstat->norm = VIDEO_MODE_PAL;
1796
1797                         bstat->color =
1798                             (status & V4L2_IN_ST_NO_COLOR) ? 0 : 1;
1799                 }
1800
1801                 return res;
1802         }
1803
1804         default:
1805                 return -EINVAL;
1806         }
1807 }
1808
1809 static int zoran_vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *vmbuf)
1810 {
1811         struct zoran_fh *fh = __fh;
1812         struct zoran *zr = fh->zr;
1813         int i, res = 0;
1814
1815
1816         mutex_lock(&zr->resource_lock);
1817
1818         if (fh->buffers.allocated) {
1819                 dprintk(1,
1820                         KERN_ERR
1821                         "%s: VIDIOCGMBUF - buffers already allocated\n",
1822                         ZR_DEVNAME(zr));
1823                 res = -EINVAL;
1824                 goto v4l1reqbuf_unlock_and_return;
1825         }
1826
1827         /* The next mmap will map the V4L buffers */
1828         map_mode_raw(fh);
1829
1830         if (v4l_fbuffer_alloc(fh)) {
1831                 res = -ENOMEM;
1832                 goto v4l1reqbuf_unlock_and_return;
1833         }
1834
1835         vmbuf->size = fh->buffers.num_buffers * fh->buffers.buffer_size;
1836         vmbuf->frames = fh->buffers.num_buffers;
1837         for (i = 0; i < vmbuf->frames; i++)
1838                 vmbuf->offsets[i] = i * fh->buffers.buffer_size;
1839
1840 v4l1reqbuf_unlock_and_return:
1841         mutex_unlock(&zr->resource_lock);
1842
1843         return res;
1844 }
1845 #endif
1846
1847 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1848 {
1849         struct zoran_fh *fh = __fh;
1850         struct zoran *zr = fh->zr;
1851
1852         memset(cap, 0, sizeof(*cap));
1853         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1854         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1855         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1856                  pci_name(zr->pci_dev));
1857         cap->version = KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
1858                            RELEASE_VERSION);
1859         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1860                             V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1861         return 0;
1862 }
1863
1864 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1865 {
1866         int num = -1, i;
1867
1868         for (i = 0; i < NUM_FORMATS; i++) {
1869                 if (zoran_formats[i].flags & flag)
1870                         num++;
1871                 if (num == fmt->index)
1872                         break;
1873         }
1874         if (fmt->index < 0 /* late, but not too late */  || i == NUM_FORMATS)
1875                 return -EINVAL;
1876
1877         strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
1878         fmt->pixelformat = zoran_formats[i].fourcc;
1879         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1880                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1881         return 0;
1882 }
1883
1884 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1885                                             struct v4l2_fmtdesc *f)
1886 {
1887         struct zoran_fh *fh = __fh;
1888         struct zoran *zr = fh->zr;
1889
1890         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1891 }
1892
1893 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1894                                             struct v4l2_fmtdesc *f)
1895 {
1896         struct zoran_fh *fh = __fh;
1897         struct zoran *zr = fh->zr;
1898
1899         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1900 }
1901
1902 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1903                                             struct v4l2_fmtdesc *f)
1904 {
1905         struct zoran_fh *fh = __fh;
1906         struct zoran *zr = fh->zr;
1907
1908         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1909 }
1910
1911 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1912                                         struct v4l2_format *fmt)
1913 {
1914         struct zoran_fh *fh = __fh;
1915         struct zoran *zr = fh->zr;
1916
1917         mutex_lock(&zr->resource_lock);
1918
1919         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1920         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1921                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1922         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1923         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1924         if (fh->jpg_settings.TmpDcm == 1)
1925                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1926                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1927         else
1928                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1929                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1930         fmt->fmt.pix.bytesperline = 0;
1931         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1932
1933         mutex_unlock(&zr->resource_lock);
1934         return 0;
1935 }
1936
1937 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1938                                         struct v4l2_format *fmt)
1939 {
1940         struct zoran_fh *fh = __fh;
1941         struct zoran *zr = fh->zr;
1942
1943         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1944                 return zoran_g_fmt_vid_out(file, fh, fmt);
1945
1946         mutex_lock(&zr->resource_lock);
1947         fmt->fmt.pix.width = fh->v4l_settings.width;
1948         fmt->fmt.pix.height = fh->v4l_settings.height;
1949         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1950                                         fh->v4l_settings.height;
1951         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1952         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1953         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1954         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1955                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1956         else
1957                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1958         mutex_unlock(&zr->resource_lock);
1959         return 0;
1960 }
1961
1962 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1963                                         struct v4l2_format *fmt)
1964 {
1965         struct zoran_fh *fh = __fh;
1966         struct zoran *zr = fh->zr;
1967
1968         mutex_lock(&zr->resource_lock);
1969
1970         fmt->fmt.win.w.left = fh->overlay_settings.x;
1971         fmt->fmt.win.w.top = fh->overlay_settings.y;
1972         fmt->fmt.win.w.width = fh->overlay_settings.width;
1973         fmt->fmt.win.w.height = fh->overlay_settings.height;
1974         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1975                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1976         else
1977                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1978
1979         mutex_unlock(&zr->resource_lock);
1980         return 0;
1981 }
1982
1983 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1984                                         struct v4l2_format *fmt)
1985 {
1986         struct zoran_fh *fh = __fh;
1987         struct zoran *zr = fh->zr;
1988
1989         mutex_lock(&zr->resource_lock);
1990
1991         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1992                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1993         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1994                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1995         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1996                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1997         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1998                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1999
2000         mutex_unlock(&zr->resource_lock);
2001         return 0;
2002 }
2003
2004 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
2005                                         struct v4l2_format *fmt)
2006 {
2007         struct zoran_fh *fh = __fh;
2008         struct zoran *zr = fh->zr;
2009         struct zoran_jpg_settings settings;
2010         int res = 0;
2011
2012         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
2013                 return -EINVAL;
2014
2015         mutex_lock(&zr->resource_lock);
2016         settings = fh->jpg_settings;
2017
2018         /* we actually need to set 'real' parameters now */
2019         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
2020                 settings.TmpDcm = 1;
2021         else
2022                 settings.TmpDcm = 2;
2023         settings.decimation = 0;
2024         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
2025                 settings.VerDcm = 2;
2026         else
2027                 settings.VerDcm = 1;
2028         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
2029                 settings.HorDcm = 4;
2030         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
2031                 settings.HorDcm = 2;
2032         else
2033                 settings.HorDcm = 1;
2034         if (settings.TmpDcm == 1)
2035                 settings.field_per_buff = 2;
2036         else
2037                 settings.field_per_buff = 1;
2038
2039         if (settings.HorDcm > 1) {
2040                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
2041                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
2042         } else {
2043                 settings.img_x = 0;
2044                 settings.img_width = BUZ_MAX_WIDTH;
2045         }
2046
2047         /* check */
2048         res = zoran_check_jpg_settings(zr, &settings, 1);
2049         if (res)
2050                 goto tryfmt_unlock_and_return;
2051
2052         /* tell the user what we actually did */
2053         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
2054         fmt->fmt.pix.height = settings.img_height * 2 /
2055                 (settings.TmpDcm * settings.VerDcm);
2056         if (settings.TmpDcm == 1)
2057                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2058                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
2059         else
2060                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2061                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
2062
2063         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
2064         fmt->fmt.pix.bytesperline = 0;
2065         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2066 tryfmt_unlock_and_return:
2067         mutex_unlock(&zr->resource_lock);
2068         return res;
2069 }
2070
2071 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
2072                                         struct v4l2_format *fmt)
2073 {
2074         struct zoran_fh *fh = __fh;
2075         struct zoran *zr = fh->zr;
2076         int bpp;
2077         int i;
2078
2079         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
2080                 return zoran_try_fmt_vid_out(file, fh, fmt);
2081
2082         mutex_lock(&zr->resource_lock);
2083
2084         for (i = 0; i < NUM_FORMATS; i++)
2085                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
2086                         break;
2087
2088         if (i == NUM_FORMATS) {
2089                 mutex_unlock(&zr->resource_lock);
2090                 return -EINVAL;
2091         }
2092
2093         bpp = (zoran_formats[i].depth + 7) / 8;
2094         fmt->fmt.pix.width &= ~((bpp == 2) ? 1 : 3);
2095         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2096                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2097         if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
2098                 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
2099         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2100                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
2101         if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
2102                 fmt->fmt.pix.height = BUZ_MIN_HEIGHT;
2103         mutex_unlock(&zr->resource_lock);
2104
2105         return 0;
2106 }
2107
2108 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
2109                                         struct v4l2_format *fmt)
2110 {
2111         struct zoran_fh *fh = __fh;
2112         struct zoran *zr = fh->zr;
2113         int res;
2114
2115         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2116                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2117                         fmt->fmt.win.w.width,
2118                         fmt->fmt.win.w.height,
2119                         fmt->fmt.win.clipcount,
2120                         fmt->fmt.win.bitmap);
2121         mutex_lock(&zr->resource_lock);
2122         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2123                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
2124                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
2125                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
2126         mutex_unlock(&zr->resource_lock);
2127         return res;
2128 }
2129
2130 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
2131                                         struct v4l2_format *fmt)
2132 {
2133         struct zoran_fh *fh = __fh;
2134         struct zoran *zr = fh->zr;
2135         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
2136         struct zoran_jpg_settings settings;
2137         int res = 0;
2138
2139         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2140                         fmt->fmt.pix.width, fmt->fmt.pix.height,
2141                         fmt->fmt.pix.pixelformat,
2142                         (char *) &printformat);
2143         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
2144                 return -EINVAL;
2145
2146         mutex_lock(&zr->resource_lock);
2147
2148         if (fh->buffers.allocated) {
2149                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2150                         ZR_DEVNAME(zr));
2151                 res = -EBUSY;
2152                 goto sfmtjpg_unlock_and_return;
2153         }
2154
2155         settings = fh->jpg_settings;
2156
2157         /* we actually need to set 'real' parameters now */
2158         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
2159                 settings.TmpDcm = 1;
2160         else
2161                 settings.TmpDcm = 2;
2162         settings.decimation = 0;
2163         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
2164                 settings.VerDcm = 2;
2165         else
2166                 settings.VerDcm = 1;
2167         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
2168                 settings.HorDcm = 4;
2169         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
2170                 settings.HorDcm = 2;
2171         else
2172                 settings.HorDcm = 1;
2173         if (settings.TmpDcm == 1)
2174                 settings.field_per_buff = 2;
2175         else
2176                 settings.field_per_buff = 1;
2177
2178         if (settings.HorDcm > 1) {
2179                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
2180                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
2181         } else {
2182                 settings.img_x = 0;
2183                 settings.img_width = BUZ_MAX_WIDTH;
2184         }
2185
2186         /* check */
2187         res = zoran_check_jpg_settings(zr, &settings, 0);
2188         if (res)
2189                 goto sfmtjpg_unlock_and_return;
2190
2191         /* it's ok, so set them */
2192         fh->jpg_settings = settings;
2193
2194         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2195         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2196
2197         /* tell the user what we actually did */
2198         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
2199         fmt->fmt.pix.height = settings.img_height * 2 /
2200                 (settings.TmpDcm * settings.VerDcm);
2201         if (settings.TmpDcm == 1)
2202                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2203                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
2204         else
2205                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2206                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
2207         fmt->fmt.pix.bytesperline = 0;
2208         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
2209         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2210
2211 sfmtjpg_unlock_and_return:
2212         mutex_unlock(&zr->resource_lock);
2213         return res;
2214 }
2215
2216 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
2217                                         struct v4l2_format *fmt)
2218 {
2219         struct zoran_fh *fh = __fh;
2220         struct zoran *zr = fh->zr;
2221         int i;
2222         int res = 0;
2223
2224         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
2225                 return zoran_s_fmt_vid_out(file, fh, fmt);
2226
2227         for (i = 0; i < NUM_FORMATS; i++)
2228                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
2229                         break;
2230         if (i == NUM_FORMATS) {
2231                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
2232                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
2233                 return -EINVAL;
2234         }
2235
2236         mutex_lock(&zr->resource_lock);
2237
2238         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
2239             fh->buffers.active != ZORAN_FREE) {
2240                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2241                                 ZR_DEVNAME(zr));
2242                 res = -EBUSY;
2243                 goto sfmtv4l_unlock_and_return;
2244         }
2245         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2246                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
2247         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2248                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2249
2250         map_mode_raw(fh);
2251
2252         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
2253                                    &zoran_formats[i]);
2254         if (res)
2255                 goto sfmtv4l_unlock_and_return;
2256
2257         /* tell the user the results/missing stuff */
2258         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
2259         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
2260         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
2261         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
2262                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
2263         else
2264                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
2265
2266 sfmtv4l_unlock_and_return:
2267         mutex_unlock(&zr->resource_lock);
2268         return res;
2269 }
2270
2271 static int zoran_g_fbuf(struct file *file, void *__fh,
2272                 struct v4l2_framebuffer *fb)
2273 {
2274         struct zoran_fh *fh = __fh;
2275         struct zoran *zr = fh->zr;
2276
2277         memset(fb, 0, sizeof(*fb));
2278         mutex_lock(&zr->resource_lock);
2279         fb->base = zr->vbuf_base;
2280         fb->fmt.width = zr->vbuf_width;
2281         fb->fmt.height = zr->vbuf_height;
2282         if (zr->overlay_settings.format)
2283                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
2284         fb->fmt.bytesperline = zr->vbuf_bytesperline;
2285         mutex_unlock(&zr->resource_lock);
2286         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
2287         fb->fmt.field = V4L2_FIELD_INTERLACED;
2288         fb->flags = V4L2_FBUF_FLAG_OVERLAY;
2289         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2290
2291         return 0;
2292 }
2293
2294 static int zoran_s_fbuf(struct file *file, void *__fh,
2295                 struct v4l2_framebuffer *fb)
2296 {
2297         struct zoran_fh *fh = __fh;
2298         struct zoran *zr = fh->zr;
2299         int i, res = 0;
2300         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
2301
2302         for (i = 0; i < NUM_FORMATS; i++)
2303                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
2304                         break;
2305         if (i == NUM_FORMATS) {
2306                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
2307                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
2308                         (char *)&printformat);
2309                 return -EINVAL;
2310         }
2311
2312         mutex_lock(&zr->resource_lock);
2313         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
2314                             fb->fmt.height, fb->fmt.bytesperline);
2315         mutex_unlock(&zr->resource_lock);
2316
2317         return res;
2318 }
2319
2320 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
2321 {
2322         struct zoran_fh *fh = __fh;
2323         struct zoran *zr = fh->zr;
2324         int res;
2325
2326         mutex_lock(&zr->resource_lock);
2327         res = setup_overlay(fh, on);
2328         mutex_unlock(&zr->resource_lock);
2329
2330         return res;
2331 }
2332
2333 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
2334
2335 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2336 {
2337         struct zoran_fh *fh = __fh;
2338         struct zoran *zr = fh->zr;
2339         int res = 0;
2340
2341         if (req->memory != V4L2_MEMORY_MMAP) {
2342                 dprintk(2,
2343                                 KERN_ERR
2344                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2345                                 ZR_DEVNAME(zr), req->memory);
2346                 return -EINVAL;
2347         }
2348
2349         if (req->count == 0)
2350                 return zoran_streamoff(file, fh, req->type);
2351
2352         mutex_lock(&zr->resource_lock);
2353         if (fh->buffers.allocated) {
2354                 dprintk(2,
2355                                 KERN_ERR
2356                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
2357                                 ZR_DEVNAME(zr));
2358                 res = -EBUSY;
2359                 goto v4l2reqbuf_unlock_and_return;
2360         }
2361
2362         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
2363             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2364                 /* control user input */
2365                 if (req->count < 2)
2366                         req->count = 2;
2367                 if (req->count > v4l_nbufs)
2368                         req->count = v4l_nbufs;
2369
2370                 /* The next mmap will map the V4L buffers */
2371                 map_mode_raw(fh);
2372                 fh->buffers.num_buffers = req->count;
2373
2374                 if (v4l_fbuffer_alloc(fh)) {
2375                         res = -ENOMEM;
2376                         goto v4l2reqbuf_unlock_and_return;
2377                 }
2378         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
2379                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2380                 /* we need to calculate size ourselves now */
2381                 if (req->count < 4)
2382                         req->count = 4;
2383                 if (req->count > jpg_nbufs)
2384                         req->count = jpg_nbufs;
2385
2386                 /* The next mmap will map the MJPEG buffers */
2387                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2388                 fh->buffers.num_buffers = req->count;
2389                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2390
2391                 if (jpg_fbuffer_alloc(fh)) {
2392                         res = -ENOMEM;
2393                         goto v4l2reqbuf_unlock_and_return;
2394                 }
2395         } else {
2396                 dprintk(1,
2397                                 KERN_ERR
2398                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2399                                 ZR_DEVNAME(zr), req->type);
2400                 res = -EINVAL;
2401                 goto v4l2reqbuf_unlock_and_return;
2402         }
2403 v4l2reqbuf_unlock_and_return:
2404         mutex_unlock(&zr->resource_lock);
2405
2406         return res;
2407 }
2408
2409 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2410 {
2411         struct zoran_fh *fh = __fh;
2412         struct zoran *zr = fh->zr;
2413         int res;
2414
2415         mutex_lock(&zr->resource_lock);
2416         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2417         mutex_unlock(&zr->resource_lock);
2418
2419         return res;
2420 }
2421
2422 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2423 {
2424         struct zoran_fh *fh = __fh;
2425         struct zoran *zr = fh->zr;
2426         int res = 0, codec_mode, buf_type;
2427
2428         mutex_lock(&zr->resource_lock);
2429
2430         switch (fh->map_mode) {
2431         case ZORAN_MAP_MODE_RAW:
2432                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2433                         dprintk(1, KERN_ERR
2434                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2435                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2436                         res = -EINVAL;
2437                         goto qbuf_unlock_and_return;
2438                 }
2439
2440                 res = zoran_v4l_queue_frame(fh, buf->index);
2441                 if (res)
2442                         goto qbuf_unlock_and_return;
2443                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2444                         zr36057_set_memgrab(zr, 1);
2445                 break;
2446
2447         case ZORAN_MAP_MODE_JPG_REC:
2448         case ZORAN_MAP_MODE_JPG_PLAY:
2449                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2450                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2451                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2452                 } else {
2453                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2454                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2455                 }
2456
2457                 if (buf->type != buf_type) {
2458                         dprintk(1, KERN_ERR
2459                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2460                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2461                         res = -EINVAL;
2462                         goto qbuf_unlock_and_return;
2463                 }
2464
2465                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2466                 if (res != 0)
2467                         goto qbuf_unlock_and_return;
2468                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2469                     fh->buffers.active == ZORAN_LOCKED)
2470                         zr36057_enable_jpg(zr, codec_mode);
2471
2472                 break;
2473
2474         default:
2475                 dprintk(1, KERN_ERR
2476                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2477                         ZR_DEVNAME(zr), buf->type);
2478                 res = -EINVAL;
2479                 break;
2480         }
2481 qbuf_unlock_and_return:
2482         mutex_unlock(&zr->resource_lock);
2483
2484         return res;
2485 }
2486
2487 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2488 {
2489         struct zoran_fh *fh = __fh;
2490         struct zoran *zr = fh->zr;
2491         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2492
2493         mutex_lock(&zr->resource_lock);
2494
2495         switch (fh->map_mode) {
2496         case ZORAN_MAP_MODE_RAW:
2497                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2498                         dprintk(1, KERN_ERR
2499                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2500                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2501                         res = -EINVAL;
2502                         goto dqbuf_unlock_and_return;
2503                 }
2504
2505                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2506                 if (file->f_flags & O_NONBLOCK &&
2507                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2508                         res = -EAGAIN;
2509                         goto dqbuf_unlock_and_return;
2510                 }
2511                 res = v4l_sync(fh, num);
2512                 if (res)
2513                         goto dqbuf_unlock_and_return;
2514                 zr->v4l_sync_tail++;
2515                 res = zoran_v4l2_buffer_status(fh, buf, num);
2516                 break;
2517
2518         case ZORAN_MAP_MODE_JPG_REC:
2519         case ZORAN_MAP_MODE_JPG_PLAY:
2520         {
2521                 struct zoran_sync bs;
2522
2523                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2524                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2525                 else
2526                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2527
2528                 if (buf->type != buf_type) {
2529                         dprintk(1, KERN_ERR
2530                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2531                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2532                         res = -EINVAL;
2533                         goto dqbuf_unlock_and_return;
2534                 }
2535
2536                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2537
2538                 if (file->f_flags & O_NONBLOCK &&
2539                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2540                         res = -EAGAIN;
2541                         goto dqbuf_unlock_and_return;
2542                 }
2543                 res = jpg_sync(fh, &bs);
2544                 if (res)
2545                         goto dqbuf_unlock_and_return;
2546                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2547                 break;
2548         }
2549
2550         default:
2551                 dprintk(1, KERN_ERR
2552                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2553                         ZR_DEVNAME(zr), buf->type);
2554                 res = -EINVAL;
2555                 break;
2556         }
2557 dqbuf_unlock_and_return:
2558         mutex_unlock(&zr->resource_lock);
2559
2560         return res;
2561 }
2562
2563 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2564 {
2565         struct zoran_fh *fh = __fh;
2566         struct zoran *zr = fh->zr;
2567         int res = 0;
2568
2569         mutex_lock(&zr->resource_lock);
2570
2571         switch (fh->map_mode) {
2572         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2573                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2574                     fh->buffers.active != ZORAN_ACTIVE) {
2575                         res = -EBUSY;
2576                         goto strmon_unlock_and_return;
2577                 }
2578
2579                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2580                 zr->v4l_settings = fh->v4l_settings;
2581
2582                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2583                 if (!zr->v4l_memgrab_active &&
2584                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2585                         zr36057_set_memgrab(zr, 1);
2586                 }
2587                 break;
2588
2589         case ZORAN_MAP_MODE_JPG_REC:
2590         case ZORAN_MAP_MODE_JPG_PLAY:
2591                 /* what is the codec mode right now? */
2592                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2593                     fh->buffers.active != ZORAN_ACTIVE) {
2594                         res = -EBUSY;
2595                         goto strmon_unlock_and_return;
2596                 }
2597
2598                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2599
2600                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2601                         /* Start the jpeg codec when the first frame is queued  */
2602                         jpeg_start(zr);
2603                 }
2604                 break;
2605
2606         default:
2607                 dprintk(1,
2608                         KERN_ERR
2609                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2610                         ZR_DEVNAME(zr), fh->map_mode);
2611                 res = -EINVAL;
2612                 break;
2613         }
2614 strmon_unlock_and_return:
2615         mutex_unlock(&zr->resource_lock);
2616
2617         return res;
2618 }
2619
2620 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2621 {
2622         struct zoran_fh *fh = __fh;
2623         struct zoran *zr = fh->zr;
2624         int i, res = 0;
2625         unsigned long flags;
2626
2627         mutex_lock(&zr->resource_lock);
2628
2629         switch (fh->map_mode) {
2630         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2631                 if (fh->buffers.active == ZORAN_FREE &&
2632                     zr->v4l_buffers.active != ZORAN_FREE) {
2633                         res = -EPERM;   /* stay off other's settings! */
2634                         goto strmoff_unlock_and_return;
2635                 }
2636                 if (zr->v4l_buffers.active == ZORAN_FREE)
2637                         goto strmoff_unlock_and_return;
2638
2639                 spin_lock_irqsave(&zr->spinlock, flags);
2640                 /* unload capture */
2641                 if (zr->v4l_memgrab_active) {
2642
2643                         zr36057_set_memgrab(zr, 0);
2644                 }
2645
2646                 for (i = 0; i < fh->buffers.num_buffers; i++)
2647                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2648                 fh->buffers = zr->v4l_buffers;
2649
2650                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2651
2652                 zr->v4l_grab_seq = 0;
2653                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2654                 zr->v4l_sync_tail = 0;
2655
2656                 spin_unlock_irqrestore(&zr->spinlock, flags);
2657
2658                 break;
2659
2660         case ZORAN_MAP_MODE_JPG_REC:
2661         case ZORAN_MAP_MODE_JPG_PLAY:
2662                 if (fh->buffers.active == ZORAN_FREE &&
2663                     zr->jpg_buffers.active != ZORAN_FREE) {
2664                         res = -EPERM;   /* stay off other's settings! */
2665                         goto strmoff_unlock_and_return;
2666                 }
2667                 if (zr->jpg_buffers.active == ZORAN_FREE)
2668                         goto strmoff_unlock_and_return;
2669
2670                 res = jpg_qbuf(fh, -1,
2671                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2672                              BUZ_MODE_MOTION_COMPRESS :
2673                              BUZ_MODE_MOTION_DECOMPRESS);
2674                 if (res)
2675                         goto strmoff_unlock_and_return;
2676                 break;
2677         default:
2678                 dprintk(1, KERN_ERR
2679                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2680                         ZR_DEVNAME(zr), fh->map_mode);
2681                 res = -EINVAL;
2682                 break;
2683         }
2684 strmoff_unlock_and_return:
2685         mutex_unlock(&zr->resource_lock);
2686
2687         return res;
2688 }
2689
2690 static int zoran_queryctrl(struct file *file, void *__fh,
2691                                         struct v4l2_queryctrl *ctrl)
2692 {
2693         struct zoran_fh *fh = __fh;
2694         struct zoran *zr = fh->zr;
2695
2696         /* we only support hue/saturation/contrast/brightness */
2697         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2698             ctrl->id > V4L2_CID_HUE)
2699                 return -EINVAL;
2700
2701         decoder_call(zr, core, queryctrl, ctrl);
2702
2703         return 0;
2704 }
2705
2706 static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2707 {
2708         struct zoran_fh *fh = __fh;
2709         struct zoran *zr = fh->zr;
2710
2711         /* we only support hue/saturation/contrast/brightness */
2712         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2713             ctrl->id > V4L2_CID_HUE)
2714                 return -EINVAL;
2715
2716         mutex_lock(&zr->resource_lock);
2717         decoder_call(zr, core, g_ctrl, ctrl);
2718         mutex_unlock(&zr->resource_lock);
2719
2720         return 0;
2721 }
2722
2723 static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2724 {
2725         struct zoran_fh *fh = __fh;
2726         struct zoran *zr = fh->zr;
2727
2728         /* we only support hue/saturation/contrast/brightness */
2729         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2730             ctrl->id > V4L2_CID_HUE)
2731                 return -EINVAL;
2732
2733         mutex_lock(&zr->resource_lock);
2734         decoder_call(zr, core, s_ctrl, ctrl);
2735         mutex_unlock(&zr->resource_lock);
2736
2737         return 0;
2738 }
2739
2740 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2741 {
2742         struct zoran_fh *fh = __fh;
2743         struct zoran *zr = fh->zr;
2744
2745         mutex_lock(&zr->resource_lock);
2746         *std = zr->norm;
2747         mutex_unlock(&zr->resource_lock);
2748         return 0;
2749 }
2750
2751 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id *std)
2752 {
2753         struct zoran_fh *fh = __fh;
2754         struct zoran *zr = fh->zr;
2755         int res = 0;
2756
2757         mutex_lock(&zr->resource_lock);
2758         res = zoran_set_norm(zr, *std);
2759         if (res)
2760                 goto sstd_unlock_and_return;
2761
2762         res = wait_grab_pending(zr);
2763 sstd_unlock_and_return:
2764         mutex_unlock(&zr->resource_lock);
2765         return res;
2766 }
2767
2768 static int zoran_enum_input(struct file *file, void *__fh,
2769                                  struct v4l2_input *inp)
2770 {
2771         struct zoran_fh *fh = __fh;
2772         struct zoran *zr = fh->zr;
2773
2774         if (inp->index < 0 || inp->index >= zr->card.inputs)
2775                 return -EINVAL;
2776         else {
2777                 int id = inp->index;
2778                 memset(inp, 0, sizeof(*inp));
2779                 inp->index = id;
2780         }
2781
2782         strncpy(inp->name, zr->card.input[inp->index].name,
2783                 sizeof(inp->name) - 1);
2784         inp->type = V4L2_INPUT_TYPE_CAMERA;
2785         inp->std = V4L2_STD_ALL;
2786
2787         /* Get status of video decoder */
2788         mutex_lock(&zr->resource_lock);
2789         decoder_call(zr, video, g_input_status, &inp->status);
2790         mutex_unlock(&zr->resource_lock);
2791         return 0;
2792 }
2793
2794 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2795 {
2796         struct zoran_fh *fh = __fh;
2797         struct zoran *zr = fh->zr;
2798
2799         mutex_lock(&zr->resource_lock);
2800         *input = zr->input;
2801         mutex_unlock(&zr->resource_lock);
2802
2803         return 0;
2804 }
2805
2806 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2807 {
2808         struct zoran_fh *fh = __fh;
2809         struct zoran *zr = fh->zr;
2810         int res;
2811
2812         mutex_lock(&zr->resource_lock);
2813         res = zoran_set_input(zr, input);
2814         if (res)
2815                 goto sinput_unlock_and_return;
2816
2817         /* Make sure the changes come into effect */
2818         res = wait_grab_pending(zr);
2819 sinput_unlock_and_return:
2820         mutex_unlock(&zr->resource_lock);
2821         return res;
2822 }
2823
2824 static int zoran_enum_output(struct file *file, void *__fh,
2825                                   struct v4l2_output *outp)
2826 {
2827         if (outp->index != 0)
2828                 return -EINVAL;
2829
2830         memset(outp, 0, sizeof(*outp));
2831         outp->index = 0;
2832         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2833         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2834
2835         return 0;
2836 }
2837
2838 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2839 {
2840         *output = 0;
2841
2842         return 0;
2843 }
2844
2845 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2846 {
2847         if (output != 0)
2848                 return -EINVAL;
2849
2850         return 0;
2851 }
2852
2853 /* cropping (sub-frame capture) */
2854 static int zoran_cropcap(struct file *file, void *__fh,
2855                                         struct v4l2_cropcap *cropcap)
2856 {
2857         struct zoran_fh *fh = __fh;
2858         struct zoran *zr = fh->zr;
2859         int type = cropcap->type, res = 0;
2860
2861         memset(cropcap, 0, sizeof(*cropcap));
2862         cropcap->type = type;
2863
2864         mutex_lock(&zr->resource_lock);
2865
2866         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2867             (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2868              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2869                 dprintk(1, KERN_ERR
2870                         "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
2871                         ZR_DEVNAME(zr));
2872                 res = -EINVAL;
2873                 goto cropcap_unlock_and_return;
2874         }
2875
2876         cropcap->bounds.top = cropcap->bounds.left = 0;
2877         cropcap->bounds.width = BUZ_MAX_WIDTH;
2878         cropcap->bounds.height = BUZ_MAX_HEIGHT;
2879         cropcap->defrect.top = cropcap->defrect.left = 0;
2880         cropcap->defrect.width = BUZ_MIN_WIDTH;
2881         cropcap->defrect.height = BUZ_MIN_HEIGHT;
2882 cropcap_unlock_and_return:
2883         mutex_unlock(&zr->resource_lock);
2884         return res;
2885 }
2886
2887 static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2888 {
2889         struct zoran_fh *fh = __fh;
2890         struct zoran *zr = fh->zr;
2891         int type = crop->type, res = 0;
2892
2893         memset(crop, 0, sizeof(*crop));
2894         crop->type = type;
2895
2896         mutex_lock(&zr->resource_lock);
2897
2898         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2899             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2900              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2901                 dprintk(1,
2902                         KERN_ERR
2903                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2904                         ZR_DEVNAME(zr));
2905                 res = -EINVAL;
2906                 goto gcrop_unlock_and_return;
2907         }
2908
2909         crop->c.top = fh->jpg_settings.img_y;
2910         crop->c.left = fh->jpg_settings.img_x;
2911         crop->c.width = fh->jpg_settings.img_width;
2912         crop->c.height = fh->jpg_settings.img_height;
2913
2914 gcrop_unlock_and_return:
2915         mutex_unlock(&zr->resource_lock);
2916
2917         return res;
2918 }
2919
2920 static int zoran_s_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2921 {
2922         struct zoran_fh *fh = __fh;
2923         struct zoran *zr = fh->zr;
2924         int res = 0;
2925         struct zoran_jpg_settings settings;
2926
2927         settings = fh->jpg_settings;
2928
2929         mutex_lock(&zr->resource_lock);
2930
2931         if (fh->buffers.allocated) {
2932                 dprintk(1, KERN_ERR
2933                         "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2934                         ZR_DEVNAME(zr));
2935                 res = -EBUSY;
2936                 goto scrop_unlock_and_return;
2937         }
2938
2939         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2940             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2941              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2942                 dprintk(1, KERN_ERR
2943                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2944                         ZR_DEVNAME(zr));
2945                 res = -EINVAL;
2946                 goto scrop_unlock_and_return;
2947         }
2948
2949         /* move into a form that we understand */
2950         settings.img_x = crop->c.left;
2951         settings.img_y = crop->c.top;
2952         settings.img_width = crop->c.width;
2953         settings.img_height = crop->c.height;
2954
2955         /* check validity */
2956         res = zoran_check_jpg_settings(zr, &settings, 0);
2957         if (res)
2958                 goto scrop_unlock_and_return;
2959
2960         /* accept */
2961         fh->jpg_settings = settings;
2962
2963 scrop_unlock_and_return:
2964         mutex_unlock(&zr->resource_lock);
2965         return res;
2966 }
2967
2968 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2969                                         struct v4l2_jpegcompression *params)
2970 {
2971         struct zoran_fh *fh = __fh;
2972         struct zoran *zr = fh->zr;
2973         memset(params, 0, sizeof(*params));
2974
2975         mutex_lock(&zr->resource_lock);
2976
2977         params->quality = fh->jpg_settings.jpg_comp.quality;
2978         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2979         memcpy(params->APP_data,
2980                fh->jpg_settings.jpg_comp.APP_data,
2981                fh->jpg_settings.jpg_comp.APP_len);
2982         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2983         memcpy(params->COM_data,
2984                fh->jpg_settings.jpg_comp.COM_data,
2985                fh->jpg_settings.jpg_comp.COM_len);
2986         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2987         params->jpeg_markers =
2988             fh->jpg_settings.jpg_comp.jpeg_markers;
2989
2990         mutex_unlock(&zr->resource_lock);
2991
2992         return 0;
2993 }
2994
2995 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2996                                         struct v4l2_jpegcompression *params)
2997 {
2998         struct zoran_fh *fh = __fh;
2999         struct zoran *zr = fh->zr;
3000         int res = 0;
3001         struct zoran_jpg_settings settings;
3002
3003         settings = fh->jpg_settings;
3004
3005         settings.jpg_comp = *params;
3006
3007         mutex_lock(&zr->resource_lock);
3008
3009         if (fh->buffers.active != ZORAN_FREE) {
3010                 dprintk(1, KERN_WARNING
3011                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
3012                         ZR_DEVNAME(zr));
3013                 res = -EBUSY;
3014                 goto sjpegc_unlock_and_return;
3015         }
3016
3017         res = zoran_check_jpg_settings(zr, &settings, 0);
3018         if (res)
3019                 goto sjpegc_unlock_and_return;
3020         if (!fh->buffers.allocated)
3021                 fh->buffers.buffer_size =
3022                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3023         fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
3024 sjpegc_unlock_and_return:
3025         mutex_unlock(&zr->resource_lock);
3026
3027         return res;
3028 }
3029
3030 static unsigned int
3031 zoran_poll (struct file *file,
3032             poll_table  *wait)
3033 {
3034         struct zoran_fh *fh = file->private_data;
3035         struct zoran *zr = fh->zr;
3036         int res = 0, frame;
3037         unsigned long flags;
3038
3039         /* we should check whether buffers are ready to be synced on
3040          * (w/o waits - O_NONBLOCK) here
3041          * if ready for read (sync), return POLLIN|POLLRDNORM,
3042          * if ready for write (sync), return POLLOUT|POLLWRNORM,
3043          * if error, return POLLERR,
3044          * if no buffers queued or so, return POLLNVAL
3045          */
3046
3047         mutex_lock(&zr->resource_lock);
3048
3049         switch (fh->map_mode) {
3050         case ZORAN_MAP_MODE_RAW:
3051                 poll_wait(file, &zr->v4l_capq, wait);
3052                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3053
3054                 spin_lock_irqsave(&zr->spinlock, flags);
3055                 dprintk(3,
3056                         KERN_DEBUG
3057                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
3058                         ZR_DEVNAME(zr), __func__,
3059                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
3060                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
3061                         zr->v4l_pend_tail, zr->v4l_pend_head);
3062                 /* Process is the one capturing? */
3063                 if (fh->buffers.active != ZORAN_FREE &&
3064                     /* Buffer ready to DQBUF? */
3065                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
3066                         res = POLLIN | POLLRDNORM;
3067                 spin_unlock_irqrestore(&zr->spinlock, flags);
3068
3069                 break;
3070
3071         case ZORAN_MAP_MODE_JPG_REC:
3072         case ZORAN_MAP_MODE_JPG_PLAY:
3073                 poll_wait(file, &zr->jpg_capq, wait);
3074                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
3075
3076                 spin_lock_irqsave(&zr->spinlock, flags);
3077                 dprintk(3,
3078                         KERN_DEBUG
3079                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
3080                         ZR_DEVNAME(zr), __func__,
3081                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
3082                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
3083                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
3084                 if (fh->buffers.active != ZORAN_FREE &&
3085                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
3086                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
3087                                 res = POLLIN | POLLRDNORM;
3088                         else
3089                                 res = POLLOUT | POLLWRNORM;
3090                 }
3091                 spin_unlock_irqrestore(&zr->spinlock, flags);
3092
3093                 break;
3094
3095         default:
3096                 dprintk(1,
3097                         KERN_ERR
3098                         "%s: %s - internal error, unknown map_mode=%d\n",
3099                         ZR_DEVNAME(zr), __func__, fh->map_mode);
3100                 res = POLLNVAL;
3101         }
3102
3103         mutex_unlock(&zr->resource_lock);
3104
3105         return res;
3106 }
3107
3108
3109 /*
3110  * This maps the buffers to user space.
3111  *
3112  * Depending on the state of fh->map_mode
3113  * the V4L or the MJPEG buffers are mapped
3114  * per buffer or all together
3115  *
3116  * Note that we need to connect to some
3117  * unmap signal event to unmap the de-allocate
3118  * the buffer accordingly (zoran_vm_close())
3119  */
3120
3121 static void
3122 zoran_vm_open (struct vm_area_struct *vma)
3123 {
3124         struct zoran_mapping *map = vma->vm_private_data;
3125
3126         map->count++;
3127 }
3128
3129 static void
3130 zoran_vm_close (struct vm_area_struct *vma)
3131 {
3132         struct zoran_mapping *map = vma->vm_private_data;
3133         struct zoran_fh *fh = map->file->private_data;
3134         struct zoran *zr = fh->zr;
3135         int i;
3136
3137         if (--map->count > 0)
3138                 return;
3139
3140         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
3141                 __func__, mode_name(fh->map_mode));
3142
3143         for (i = 0; i < fh->buffers.num_buffers; i++) {
3144                 if (fh->buffers.buffer[i].map == map)
3145                         fh->buffers.buffer[i].map = NULL;
3146         }
3147         kfree(map);
3148
3149         /* Any buffers still mapped? */
3150         for (i = 0; i < fh->buffers.num_buffers; i++)
3151                 if (fh->buffers.buffer[i].map)
3152                         return;
3153
3154         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
3155                 __func__, mode_name(fh->map_mode));
3156
3157         mutex_lock(&zr->resource_lock);
3158
3159         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
3160                 if (fh->buffers.active != ZORAN_FREE) {
3161                         unsigned long flags;
3162
3163                         spin_lock_irqsave(&zr->spinlock, flags);
3164                         zr36057_set_memgrab(zr, 0);
3165                         zr->v4l_buffers.allocated = 0;
3166                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
3167                         spin_unlock_irqrestore(&zr->spinlock, flags);
3168                 }
3169                 v4l_fbuffer_free(fh);
3170         } else {
3171                 if (fh->buffers.active != ZORAN_FREE) {
3172                         jpg_qbuf(fh, -1, zr->codec_mode);
3173                         zr->jpg_buffers.allocated = 0;
3174                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
3175                 }
3176                 jpg_fbuffer_free(fh);
3177         }
3178
3179         mutex_unlock(&zr->resource_lock);
3180 }
3181
3182 static struct vm_operations_struct zoran_vm_ops = {
3183         .open = zoran_vm_open,
3184         .close = zoran_vm_close,
3185 };
3186
3187 static int
3188 zoran_mmap (struct file           *file,
3189             struct vm_area_struct *vma)
3190 {
3191         struct zoran_fh *fh = file->private_data;
3192         struct zoran *zr = fh->zr;
3193         unsigned long size = (vma->vm_end - vma->vm_start);
3194         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
3195         int i, j;
3196         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
3197         int first, last;
3198         struct zoran_mapping *map;
3199         int res = 0;
3200
3201         dprintk(3,
3202                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
3203                 ZR_DEVNAME(zr), __func__,
3204                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
3205
3206         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
3207             !(vma->vm_flags & VM_WRITE)) {
3208                 dprintk(1,
3209                         KERN_ERR
3210                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
3211                         ZR_DEVNAME(zr), __func__);
3212                 return -EINVAL;
3213         }
3214
3215         mutex_lock(&zr->resource_lock);
3216
3217         if (!fh->buffers.allocated) {
3218                 dprintk(1,
3219                         KERN_ERR
3220                         "%s: %s(%s) - buffers not yet allocated\n",
3221                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
3222                 res = -ENOMEM;
3223                 goto mmap_unlock_and_return;
3224         }
3225
3226         first = offset / fh->buffers.buffer_size;
3227         last = first - 1 + size / fh->buffers.buffer_size;
3228         if (offset % fh->buffers.buffer_size != 0 ||
3229             size % fh->buffers.buffer_size != 0 || first < 0 ||
3230             last < 0 || first >= fh->buffers.num_buffers ||
3231             last >= fh->buffers.buffer_size) {
3232                 dprintk(1,
3233                         KERN_ERR
3234                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
3235                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
3236                         fh->buffers.buffer_size,
3237                         fh->buffers.num_buffers);
3238                 res = -EINVAL;
3239                 goto mmap_unlock_and_return;
3240         }
3241
3242         /* Check if any buffers are already mapped */
3243         for (i = first; i <= last; i++) {
3244                 if (fh->buffers.buffer[i].map) {
3245                         dprintk(1,
3246                                 KERN_ERR
3247                                 "%s: %s(%s) - buffer %d already mapped\n",
3248                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
3249                         res = -EBUSY;
3250                         goto mmap_unlock_and_return;
3251                 }
3252         }
3253
3254         /* map these buffers */
3255         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
3256         if (!map) {
3257                 res = -ENOMEM;
3258                 goto mmap_unlock_and_return;
3259         }
3260         map->file = file;
3261         map->count = 1;
3262
3263         vma->vm_ops = &zoran_vm_ops;
3264         vma->vm_flags |= VM_DONTEXPAND;
3265         vma->vm_private_data = map;
3266
3267         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
3268                 for (i = first; i <= last; i++) {
3269                         todo = size;
3270                         if (todo > fh->buffers.buffer_size)
3271                                 todo = fh->buffers.buffer_size;
3272                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
3273                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
3274                                                         todo, PAGE_SHARED)) {
3275                                 dprintk(1,
3276                                         KERN_ERR
3277                                         "%s: %s(V4L) - remap_pfn_range failed\n",
3278                                         ZR_DEVNAME(zr), __func__);
3279                                 res = -EAGAIN;
3280                                 goto mmap_unlock_and_return;
3281                         }
3282                         size -= todo;
3283                         start += todo;
3284                         fh->buffers.buffer[i].map = map;
3285                         if (size == 0)
3286                                 break;
3287                 }
3288         } else {
3289                 for (i = first; i <= last; i++) {
3290                         for (j = 0;
3291                              j < fh->buffers.buffer_size / PAGE_SIZE;
3292                              j++) {
3293                                 fraglen =
3294                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
3295                                      frag_tab[2 * j + 1]) & ~1) << 1;
3296                                 todo = size;
3297                                 if (todo > fraglen)
3298                                         todo = fraglen;
3299                                 pos =
3300                                     le32_to_cpu(fh->buffers.
3301                                     buffer[i].jpg.frag_tab[2 * j]);
3302                                 /* should just be pos on i386 */
3303                                 page = virt_to_phys(bus_to_virt(pos))
3304                                                                 >> PAGE_SHIFT;
3305                                 if (remap_pfn_range(vma, start, page,
3306                                                         todo, PAGE_SHARED)) {
3307                                         dprintk(1,
3308                                                 KERN_ERR
3309                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
3310                                                 ZR_DEVNAME(zr), __func__);
3311                                         res = -EAGAIN;
3312                                         goto mmap_unlock_and_return;
3313                                 }
3314                                 size -= todo;
3315                                 start += todo;
3316                                 if (size == 0)
3317                                         break;
3318                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
3319                                     frag_tab[2 * j + 1]) & 1)
3320                                         break;  /* was last fragment */
3321                         }
3322                         fh->buffers.buffer[i].map = map;
3323                         if (size == 0)
3324                                 break;
3325
3326                 }
3327         }
3328
3329 mmap_unlock_and_return:
3330         mutex_unlock(&zr->resource_lock);
3331
3332         return 0;
3333 }
3334
3335 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
3336         .vidioc_querycap                    = zoran_querycap,
3337         .vidioc_cropcap                     = zoran_cropcap,
3338         .vidioc_s_crop                      = zoran_s_crop,
3339         .vidioc_g_crop                      = zoran_g_crop,
3340         .vidioc_enum_input                  = zoran_enum_input,
3341         .vidioc_g_input                     = zoran_g_input,
3342         .vidioc_s_input                     = zoran_s_input,
3343         .vidioc_enum_output                 = zoran_enum_output,
3344         .vidioc_g_output                    = zoran_g_output,
3345         .vidioc_s_output                    = zoran_s_output,
3346         .vidioc_g_fbuf                      = zoran_g_fbuf,
3347         .vidioc_s_fbuf                      = zoran_s_fbuf,
3348         .vidioc_g_std                       = zoran_g_std,
3349         .vidioc_s_std                       = zoran_s_std,
3350         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
3351         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
3352         .vidioc_overlay                     = zoran_overlay,
3353         .vidioc_reqbufs                     = zoran_reqbufs,
3354         .vidioc_querybuf                    = zoran_querybuf,
3355         .vidioc_qbuf                        = zoran_qbuf,
3356         .vidioc_dqbuf                       = zoran_dqbuf,
3357         .vidioc_streamon                    = zoran_streamon,
3358         .vidioc_streamoff                   = zoran_streamoff,
3359         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
3360         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
3361         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
3362         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
3363         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
3364         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
3365         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
3366         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
3367         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
3368         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
3369         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
3370         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
3371         .vidioc_queryctrl                   = zoran_queryctrl,
3372         .vidioc_s_ctrl                      = zoran_s_ctrl,
3373         .vidioc_g_ctrl                      = zoran_g_ctrl,
3374 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3375         .vidioc_default                     = zoran_default,
3376         .vidiocgmbuf                        = zoran_vidiocgmbuf,
3377 #endif
3378 };
3379
3380 static const struct v4l2_file_operations zoran_fops = {
3381         .owner = THIS_MODULE,
3382         .open = zoran_open,
3383         .release = zoran_close,
3384         .ioctl = video_ioctl2,
3385         .read = zoran_read,
3386         .write = zoran_write,
3387         .mmap = zoran_mmap,
3388         .poll = zoran_poll,
3389 };
3390
3391 struct video_device zoran_template __devinitdata = {
3392         .name = ZORAN_NAME,
3393         .fops = &zoran_fops,
3394         .ioctl_ops = &zoran_ioctl_ops,
3395         .release = &zoran_vdev_release,
3396         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
3397         .minor = -1
3398 };
3399