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zoran: racy refcount handling in vm_ops ->open()/->close()
[linux.git] / drivers / media / pci / zoran / zoran_driver.c
CommitLineData
1da177e4
LT		 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 <[email protected]>
7 *
8 * Changes for BUZ by Wolfgang Scherr <[email protected]>
9 *
10 * Changes for DC10/DC30 by Laurent Pinchart <[email protected]>
11 *
12 * Changes for LML33R10 by Maxim Yevtyushkin <[email protected]>
13 *
14 * Changes for videodev2/v4l2 by Ronald Bultje <[email protected]>
15 *
16 * Based on
17 *
18 * Miro DC10 driver
19 * Copyright (C) 1999 Wolfgang Scherr <[email protected]>
20 *
21 * Iomega Buz driver version 1.0
22 * Copyright (C) 1999 Rainer Johanni <[email protected]>
23 *
24 * buz.0.0.3
25 * Copyright (C) 1998 Dave Perks <[email protected]>
26 *
27 * bttv - Bt848 frame grabber driver
28 * Copyright (C) 1996,97,98 Ralph Metzler ([email protected])
29 * & Marcus Metzler ([email protected])
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
1da177e4
LT		 47#include <linux/init.h>
48#include <linux/module.h>
49#include <linux/delay.h>
50#include <linux/slab.h>
51#include <linux/pci.h>
52#include <linux/vmalloc.h>
53#include <linux/wait.h>
1da177e4
LT		 54
55#include <linux/interrupt.h>
56#include <linux/i2c.h>
57#include <linux/i2c-algo-bit.h>
58
59#include <linux/spinlock.h>
1da177e4 60
debff5a7 61#include <linux/videodev2.h>
5e87efa3 62#include <media/v4l2-common.h>
35ea11ff 63#include <media/v4l2-ioctl.h>
1da177e4
LT		 64#include "videocodec.h"
65
9a6ab769 66#include <asm/byteorder.h>
1da177e4
LT		 67#include <asm/io.h>
68#include <asm/uaccess.h>
69#include <linux/proc_fs.h>
70
384c3689 71#include <linux/mutex.h>
1da177e4
LT		 72#include "zoran.h"
73#include "zoran_device.h"
74#include "zoran_card.h"
75
603d6f2c
TP		 76
77const struct zoran_format zoran_formats[] = {
78 {
79 .name = "15-bit RGB LE",
602dd48a
HV		 80 .fourcc = V4L2_PIX_FMT_RGB555,
81 .colorspace = V4L2_COLORSPACE_SRGB,
1da177e4
LT		 82 .depth = 15,
83 .flags = ZORAN_FORMAT_CAPTURE |
84 ZORAN_FORMAT_OVERLAY,
603d6f2c
TP		 85 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
86 ZR36057_VFESPFR_LittleEndian,
1da177e4 87 }, {
603d6f2c 88 .name = "15-bit RGB BE",
602dd48a
HV		 89 .fourcc = V4L2_PIX_FMT_RGB555X,
90 .colorspace = V4L2_COLORSPACE_SRGB,
603d6f2c
TP		 91 .depth = 15,
92 .flags = ZORAN_FORMAT_CAPTURE |
93 ZORAN_FORMAT_OVERLAY,
94 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
95 }, {
96 .name = "16-bit RGB LE",
602dd48a
HV		 97 .fourcc = V4L2_PIX_FMT_RGB565,
98 .colorspace = V4L2_COLORSPACE_SRGB,
1da177e4
LT		 99 .depth = 16,
100 .flags = ZORAN_FORMAT_CAPTURE |
101 ZORAN_FORMAT_OVERLAY,
603d6f2c
TP		 102 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
103 ZR36057_VFESPFR_LittleEndian,
104 }, {
105 .name = "16-bit RGB BE",
602dd48a
HV		 106 .fourcc = V4L2_PIX_FMT_RGB565X,
107 .colorspace = V4L2_COLORSPACE_SRGB,
603d6f2c
TP		 108 .depth = 16,
109 .flags = ZORAN_FORMAT_CAPTURE |
110 ZORAN_FORMAT_OVERLAY,
111 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
1da177e4
LT		 112 }, {
113 .name = "24-bit RGB",
602dd48a
HV		 114 .fourcc = V4L2_PIX_FMT_BGR24,
115 .colorspace = V4L2_COLORSPACE_SRGB,
1da177e4
LT		 116 .depth = 24,
117 .flags = ZORAN_FORMAT_CAPTURE |
118 ZORAN_FORMAT_OVERLAY,
603d6f2c 119 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
1da177e4 120 }, {
603d6f2c 121 .name = "32-bit RGB LE",
602dd48a
HV		 122 .fourcc = V4L2_PIX_FMT_BGR32,
123 .colorspace = V4L2_COLORSPACE_SRGB,
1da177e4
LT		 124 .depth = 32,
125 .flags = ZORAN_FORMAT_CAPTURE |
126 ZORAN_FORMAT_OVERLAY,
603d6f2c
TP		 127 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
128 }, {
129 .name = "32-bit RGB BE",
602dd48a
HV		 130 .fourcc = V4L2_PIX_FMT_RGB32,
131 .colorspace = V4L2_COLORSPACE_SRGB,
603d6f2c
TP		 132 .depth = 32,
133 .flags = ZORAN_FORMAT_CAPTURE |
134 ZORAN_FORMAT_OVERLAY,
135 .vfespfr = ZR36057_VFESPFR_RGB888,
1da177e4
LT		 136 }, {
137 .name = "4:2:2, packed, YUYV",
602dd48a
HV		 138 .fourcc = V4L2_PIX_FMT_YUYV,
139 .colorspace = V4L2_COLORSPACE_SMPTE170M,
1da177e4
LT		 140 .depth = 16,
141 .flags = ZORAN_FORMAT_CAPTURE |
d56410e0 142 ZORAN_FORMAT_OVERLAY,
603d6f2c
TP		 143 .vfespfr = ZR36057_VFESPFR_YUV422,
144 }, {
145 .name = "4:2:2, packed, UYVY",
602dd48a
HV		 146 .fourcc = V4L2_PIX_FMT_UYVY,
147 .colorspace = V4L2_COLORSPACE_SMPTE170M,
603d6f2c
TP		 148 .depth = 16,
149 .flags = ZORAN_FORMAT_CAPTURE |
150 ZORAN_FORMAT_OVERLAY,
151 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
1da177e4
LT		 152 }, {
153 .name = "Hardware-encoded Motion-JPEG",
602dd48a
HV		 154 .fourcc = V4L2_PIX_FMT_MJPEG,
155 .colorspace = V4L2_COLORSPACE_SMPTE170M,
1da177e4
LT		 156 .depth = 0,
157 .flags = ZORAN_FORMAT_CAPTURE |
158 ZORAN_FORMAT_PLAYBACK |
159 ZORAN_FORMAT_COMPRESSED,
160 }
161};
603d6f2c 162#define NUM_FORMATS ARRAY_SIZE(zoran_formats)
1da177e4 163
1da177e4
LT		 164 /* small helper function for calculating buffersizes for v4l2
165 * we calculate the nearest higher power-of-two, which
166 * will be the recommended buffersize */
167static __u32
168zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
169{
170 __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
171 __u32 num = (1024 * 512) / (div);
172 __u32 result = 2;
173
174 num--;
175 while (num) {
176 num >>= 1;
177 result <<= 1;
178 }
179
180 if (result > jpg_bufsize)
181 return jpg_bufsize;
182 if (result < 8192)
183 return 8192;
184 return result;
185}
1da177e4
LT		 186
187/* forward references */
e5ee3f64
TP		 188static void v4l_fbuffer_free(struct zoran_fh *fh);
189static void jpg_fbuffer_free(struct zoran_fh *fh);
1da177e4 190
1159b7f1
TP		 191/* Set mapping mode */
192static void map_mode_raw(struct zoran_fh *fh)
193{
194 fh->map_mode = ZORAN_MAP_MODE_RAW;
195 fh->buffers.buffer_size = v4l_bufsize;
196 fh->buffers.num_buffers = v4l_nbufs;
197}
198static void map_mode_jpg(struct zoran_fh *fh, int play)
199{
200 fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
201 fh->buffers.buffer_size = jpg_bufsize;
202 fh->buffers.num_buffers = jpg_nbufs;
203}
204static inline const char *mode_name(enum zoran_map_mode mode)
205{
206 return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
207}
208
1da177e4
LT		 209/*
210 * Allocate the V4L grab buffers
211 *
212 * These have to be pysically contiguous.
1da177e4
LT		 213 */
214
e5ee3f64 215static int v4l_fbuffer_alloc(struct zoran_fh *fh)
1da177e4 216{
1da177e4
LT		 217 struct zoran *zr = fh->zr;
218 int i, off;
219 unsigned char *mem;
1da177e4 220
1159b7f1
TP		 221 for (i = 0; i < fh->buffers.num_buffers; i++) {
222 if (fh->buffers.buffer[i].v4l.fbuffer)
1da177e4
LT		 223 dprintk(2,
224 KERN_WARNING
c61402ba
TP		 225 "%s: %s - buffer %d already allocated!?\n",
226 ZR_DEVNAME(zr), __func__, i);
1da177e4
LT		 227
228 //udelay(20);
ee9a9d66
JD		 229 mem = kmalloc(fh->buffers.buffer_size,
230 GFP_KERNEL | __GFP_NOWARN);
b80696b7
HV		 231 if (!mem) {
232 dprintk(1,
233 KERN_ERR
c61402ba
TP		 234 "%s: %s - kmalloc for V4L buf %d failed\n",
235 ZR_DEVNAME(zr), __func__, i);
e5ee3f64 236 v4l_fbuffer_free(fh);
b80696b7 237 return -ENOBUFS;
1da177e4 238 }
1159b7f1
TP		 239 fh->buffers.buffer[i].v4l.fbuffer = mem;
240 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
241 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
242 for (off = 0; off < fh->buffers.buffer_size;
b80696b7 243 off += PAGE_SIZE)
602dd48a 244 SetPageReserved(virt_to_page(mem + off));
b80696b7
HV		 245 dprintk(4,
246 KERN_INFO
8737f66e 247 "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
c61402ba 248 ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
8737f66e 249 (unsigned long long)virt_to_bus(mem));
1da177e4
LT		 250 }
251
1159b7f1 252 fh->buffers.allocated = 1;
1da177e4
LT		 253
254 return 0;
255}
256
257/* free the V4L grab buffers */
e5ee3f64 258static void v4l_fbuffer_free(struct zoran_fh *fh)
1da177e4 259{
1da177e4
LT		 260 struct zoran *zr = fh->zr;
261 int i, off;
262 unsigned char *mem;
263
c61402ba 264 dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
1da177e4 265
1159b7f1
TP		 266 for (i = 0; i < fh->buffers.num_buffers; i++) {
267 if (!fh->buffers.buffer[i].v4l.fbuffer)
1da177e4
LT		 268 continue;
269
1159b7f1
TP		 270 mem = fh->buffers.buffer[i].v4l.fbuffer;
271 for (off = 0; off < fh->buffers.buffer_size;
b80696b7 272 off += PAGE_SIZE)
602dd48a 273 ClearPageReserved(virt_to_page(mem + off));
1159b7f1
TP		 274 kfree(fh->buffers.buffer[i].v4l.fbuffer);
275 fh->buffers.buffer[i].v4l.fbuffer = NULL;
1da177e4
LT		 276 }
277
1159b7f1 278 fh->buffers.allocated = 0;
1da177e4
LT		 279}
280
281/*
282 * Allocate the MJPEG grab buffers.
283 *
1da177e4
LT		 284 * If a Natoma chipset is present and this is a revision 1 zr36057,
285 * each MJPEG buffer needs to be physically contiguous.
286 * (RJ: This statement is from Dave Perks' original driver,
287 * I could never check it because I have a zr36067)
1da177e4
LT		 288 *
289 * RJ: The contents grab buffers needs never be accessed in the driver.
290 * Therefore there is no need to allocate them with vmalloc in order
291 * to get a contiguous virtual memory space.
292 * I don't understand why many other drivers first allocate them with
293 * vmalloc (which uses internally also get_zeroed_page, but delivers you
294 * virtual addresses) and then again have to make a lot of efforts
295 * to get the physical address.
296 *
297 * Ben Capper:
298 * On big-endian architectures (such as ppc) some extra steps
299 * are needed. When reading and writing to the stat_com array
300 * and fragment buffers, the device expects to see little-
301 * endian values. The use of cpu_to_le32() and le32_to_cpu()
302 * in this function (and one or two others in zoran_device.c)
303 * ensure that these values are always stored in little-endian
304 * form, regardless of architecture. The zr36057 does Very Bad
305 * Things on big endian architectures if the stat_com array
306 * and fragment buffers are not little-endian.
307 */
308
e5ee3f64 309static int jpg_fbuffer_alloc(struct zoran_fh *fh)
1da177e4 310{
1da177e4
LT		 311 struct zoran *zr = fh->zr;
312 int i, j, off;
1159b7f1 313 u8 *mem;
1da177e4 314
1159b7f1
TP		 315 for (i = 0; i < fh->buffers.num_buffers; i++) {
316 if (fh->buffers.buffer[i].jpg.frag_tab)
1da177e4
LT		 317 dprintk(2,
318 KERN_WARNING
c61402ba
TP		 319 "%s: %s - buffer %d already allocated!?\n",
320 ZR_DEVNAME(zr), __func__, i);
1da177e4
LT		 321
322 /* Allocate fragment table for this buffer */
323
1159b7f1 324 mem = (void *)get_zeroed_page(GFP_KERNEL);
cebedf15 325 if (!mem) {
1da177e4
LT		 326 dprintk(1,
327 KERN_ERR
c61402ba
TP		 328 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
329 ZR_DEVNAME(zr), __func__, i);
e5ee3f64 330 jpg_fbuffer_free(fh);
1da177e4
LT		 331 return -ENOBUFS;
332 }
1159b7f1
TP		 333 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
334 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
335
336 if (fh->buffers.need_contiguous) {
337 mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
338 if (mem == NULL) {
1da177e4
LT		 339 dprintk(1,
340 KERN_ERR
c61402ba
TP		 341 "%s: %s - kmalloc failed for buffer %d\n",
342 ZR_DEVNAME(zr), __func__, i);
e5ee3f64 343 jpg_fbuffer_free(fh);
1da177e4
LT		 344 return -ENOBUFS;
345 }
1159b7f1
TP		 346 fh->buffers.buffer[i].jpg.frag_tab[0] =
347 cpu_to_le32(virt_to_bus(mem));
348 fh->buffers.buffer[i].jpg.frag_tab[1] =
349 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
350 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
602dd48a 351 SetPageReserved(virt_to_page(mem + off));
1da177e4 352 } else {
b80696b7 353 /* jpg_bufsize is already page aligned */
1159b7f1
TP		 354 for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
355 mem = (void *)get_zeroed_page(GFP_KERNEL);
356 if (mem == NULL) {
1da177e4
LT		 357 dprintk(1,
358 KERN_ERR
c61402ba
TP		 359 "%s: %s - get_zeroed_page failed for buffer %d\n",
360 ZR_DEVNAME(zr), __func__, i);
e5ee3f64 361 jpg_fbuffer_free(fh);
1da177e4
LT		 362 return -ENOBUFS;
363 }
364
1159b7f1
TP		 365 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
366 cpu_to_le32(virt_to_bus(mem));
367 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
368 cpu_to_le32((PAGE_SIZE >> 2) << 1);
602dd48a 369 SetPageReserved(virt_to_page(mem));
1da177e4
LT		 370 }
371
1159b7f1 372 fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
1da177e4
LT		 373 }
374 }
375
376 dprintk(4,
c61402ba
TP		 377 KERN_DEBUG "%s: %s - %d KB allocated\n",
378 ZR_DEVNAME(zr), __func__,
1159b7f1 379 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
1da177e4 380
1159b7f1 381 fh->buffers.allocated = 1;
1da177e4
LT		 382
383 return 0;
384}
385
386/* free the MJPEG grab buffers */
e5ee3f64 387static void jpg_fbuffer_free(struct zoran_fh *fh)
1da177e4 388{
1da177e4
LT		 389 struct zoran *zr = fh->zr;
390 int i, j, off;
391 unsigned char *mem;
602dd48a 392 __le32 frag_tab;
1159b7f1 393 struct zoran_buffer *buffer;
1da177e4 394
c61402ba 395 dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
1da177e4 396
1159b7f1
TP		 397 for (i = 0, buffer = &fh->buffers.buffer[0];
398 i < fh->buffers.num_buffers; i++, buffer++) {
399 if (!buffer->jpg.frag_tab)
1da177e4
LT		 400 continue;
401
1159b7f1
TP		 402 if (fh->buffers.need_contiguous) {
403 frag_tab = buffer->jpg.frag_tab[0];
602dd48a
HV		 404
405 if (frag_tab) {
1159b7f1
TP		 406 mem = bus_to_virt(le32_to_cpu(frag_tab));
407 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
602dd48a 408 ClearPageReserved(virt_to_page(mem + off));
f9101210 409 kfree(mem);
1159b7f1
TP		 410 buffer->jpg.frag_tab[0] = 0;
411 buffer->jpg.frag_tab[1] = 0;
1da177e4
LT		 412 }
413 } else {
1159b7f1
TP		 414 for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
415 frag_tab = buffer->jpg.frag_tab[2 * j];
602dd48a
HV		 416
417 if (!frag_tab)
1da177e4 418 break;
602dd48a
HV		 419 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
420 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
1159b7f1
TP		 421 buffer->jpg.frag_tab[2 * j] = 0;
422 buffer->jpg.frag_tab[2 * j + 1] = 0;
1da177e4
LT		 423 }
424 }
425
1159b7f1
TP		 426 free_page((unsigned long)buffer->jpg.frag_tab);
427 buffer->jpg.frag_tab = NULL;
1da177e4
LT		 428 }
429
1159b7f1 430 fh->buffers.allocated = 0;
1da177e4
LT		 431}
432
433/*
434 * V4L Buffer grabbing
435 */
436
437static int
1159b7f1 438zoran_v4l_set_format (struct zoran_fh *fh,
1da177e4
LT		 439 int width,
440 int height,
441 const struct zoran_format *format)
442{
1da177e4
LT		 443 struct zoran *zr = fh->zr;
444 int bpp;
445
446 /* Check size and format of the grab wanted */
447
448 if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
449 height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
450 dprintk(1,
451 KERN_ERR
c61402ba
TP		 452 "%s: %s - wrong frame size (%dx%d)\n",
453 ZR_DEVNAME(zr), __func__, width, height);
1da177e4
LT		 454 return -EINVAL;
455 }
456
457 bpp = (format->depth + 7) / 8;
458
459 /* Check against available buffer size */
1159b7f1 460 if (height * width * bpp > fh->buffers.buffer_size) {
1da177e4
LT		 461 dprintk(1,
462 KERN_ERR
c61402ba
TP		 463 "%s: %s - video buffer size (%d kB) is too small\n",
464 ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
1da177e4
LT		 465 return -EINVAL;
466 }
467
468 /* The video front end needs 4-byte alinged line sizes */
469
470 if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
471 dprintk(1,
472 KERN_ERR
c61402ba
TP		 473 "%s: %s - wrong frame alignment\n",
474 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 475 return -EINVAL;
476 }
477
478 fh->v4l_settings.width = width;
479 fh->v4l_settings.height = height;
480 fh->v4l_settings.format = format;
481 fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
482
483 return 0;
484}
485
e5ee3f64 486static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
1da177e4 487{
1da177e4
LT		 488 struct zoran *zr = fh->zr;
489 unsigned long flags;
490 int res = 0;
491
1159b7f1 492 if (!fh->buffers.allocated) {
1da177e4
LT		 493 dprintk(1,
494 KERN_ERR
c61402ba
TP		 495 "%s: %s - buffers not yet allocated\n",
496 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 497 res = -ENOMEM;
498 }
499
500 /* No grabbing outside the buffer range! */
1159b7f1 501 if (num >= fh->buffers.num_buffers || num < 0) {
1da177e4
LT		 502 dprintk(1,
503 KERN_ERR
c61402ba
TP		 504 "%s: %s - buffer %d is out of range\n",
505 ZR_DEVNAME(zr), __func__, num);
1da177e4
LT		 506 res = -EINVAL;
507 }
508
509 spin_lock_irqsave(&zr->spinlock, flags);
510
1159b7f1 511 if (fh->buffers.active == ZORAN_FREE) {
1da177e4 512 if (zr->v4l_buffers.active == ZORAN_FREE) {
1159b7f1
TP		 513 zr->v4l_buffers = fh->buffers;
514 fh->buffers.active = ZORAN_ACTIVE;
1da177e4
LT		 515 } else {
516 dprintk(1,
517 KERN_ERR
c61402ba
TP		 518 "%s: %s - another session is already capturing\n",
519 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 520 res = -EBUSY;
521 }
522 }
523
524 /* make sure a grab isn't going on currently with this buffer */
525 if (!res) {
526 switch (zr->v4l_buffers.buffer[num].state) {
527 default:
528 case BUZ_STATE_PEND:
529 if (zr->v4l_buffers.active == ZORAN_FREE) {
1159b7f1 530 fh->buffers.active = ZORAN_FREE;
1da177e4
LT		 531 zr->v4l_buffers.allocated = 0;
532 }
533 res = -EBUSY; /* what are you doing? */
534 break;
535 case BUZ_STATE_DONE:
536 dprintk(2,
537 KERN_WARNING
c61402ba
TP		 538 "%s: %s - queueing buffer %d in state DONE!?\n",
539 ZR_DEVNAME(zr), __func__, num);
1da177e4
LT		 540 case BUZ_STATE_USER:
541 /* since there is at least one unused buffer there's room for at least
542 * one more pend[] entry */
1159b7f1 543 zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
1da177e4
LT		 544 zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
545 zr->v4l_buffers.buffer[num].bs.length =
546 fh->v4l_settings.bytesperline *
547 zr->v4l_settings.height;
1159b7f1 548 fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
1da177e4
LT		 549 break;
550 }
551 }
552
553 spin_unlock_irqrestore(&zr->spinlock, flags);
554
555 if (!res && zr->v4l_buffers.active == ZORAN_FREE)
1159b7f1 556 zr->v4l_buffers.active = fh->buffers.active;
1da177e4
LT		 557
558 return res;
559}
560
1da177e4
LT		 561/*
562 * Sync on a V4L buffer
563 */
564
e5ee3f64 565static int v4l_sync(struct zoran_fh *fh, int frame)
1da177e4 566{
1da177e4
LT		 567 struct zoran *zr = fh->zr;
568 unsigned long flags;
569
1159b7f1 570 if (fh->buffers.active == ZORAN_FREE) {
1da177e4
LT		 571 dprintk(1,
572 KERN_ERR
c61402ba
TP		 573 "%s: %s - no grab active for this session\n",
574 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 575 return -EINVAL;
576 }
577
578 /* check passed-in frame number */
1159b7f1 579 if (frame >= fh->buffers.num_buffers || frame < 0) {
1da177e4 580 dprintk(1,
c61402ba
TP		 581 KERN_ERR "%s: %s - frame %d is invalid\n",
582 ZR_DEVNAME(zr), __func__, frame);
1da177e4
LT		 583 return -EINVAL;
584 }
585
586 /* Check if is buffer was queued at all */
587 if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
588 dprintk(1,
589 KERN_ERR
c61402ba
TP		 590 "%s: %s - attempt to sync on a buffer which was not queued?\n",
591 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 592 return -EPROTO;
593 }
594
595 /* wait on this buffer to get ready */
596 if (!wait_event_interruptible_timeout(zr->v4l_capq,
1159b7f1 597 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
1da177e4
LT		 598 return -ETIME;
599 if (signal_pending(current))
600 return -ERESTARTSYS;
601
602 /* buffer should now be in BUZ_STATE_DONE */
603 if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
604 dprintk(2,
c61402ba
TP		 605 KERN_ERR "%s: %s - internal state error\n",
606 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 607
608 zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
1159b7f1 609 fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
1da177e4
LT		 610
611 spin_lock_irqsave(&zr->spinlock, flags);
612
613 /* Check if streaming capture has finished */
614 if (zr->v4l_pend_tail == zr->v4l_pend_head) {
615 zr36057_set_memgrab(zr, 0);
616 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
1159b7f1 617 fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
1da177e4
LT		 618 zr->v4l_buffers.allocated = 0;
619 }
620 }
621
622 spin_unlock_irqrestore(&zr->spinlock, flags);
623
624 return 0;
625}
626
627/*
628 * Queue a MJPEG buffer for capture/playback
629 */
630
e5ee3f64
TP		 631static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
632 enum zoran_codec_mode mode)
1da177e4 633{
1da177e4
LT		 634 struct zoran *zr = fh->zr;
635 unsigned long flags;
636 int res = 0;
637
638 /* Check if buffers are allocated */
1159b7f1 639 if (!fh->buffers.allocated) {
1da177e4
LT		 640 dprintk(1,
641 KERN_ERR
c61402ba
TP		 642 "%s: %s - buffers not yet allocated\n",
643 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 644 return -ENOMEM;
645 }
646
647 /* No grabbing outside the buffer range! */
1159b7f1 648 if (num >= fh->buffers.num_buffers || num < 0) {
1da177e4
LT		 649 dprintk(1,
650 KERN_ERR
c61402ba
TP		 651 "%s: %s - buffer %d out of range\n",
652 ZR_DEVNAME(zr), __func__, num);
1da177e4
LT		 653 return -EINVAL;
654 }
655
656 /* what is the codec mode right now? */
657 if (zr->codec_mode == BUZ_MODE_IDLE) {
658 zr->jpg_settings = fh->jpg_settings;
659 } else if (zr->codec_mode != mode) {
660 /* wrong codec mode active - invalid */
661 dprintk(1,
662 KERN_ERR
c61402ba
TP		 663 "%s: %s - codec in wrong mode\n",
664 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 665 return -EINVAL;
666 }
667
1159b7f1 668 if (fh->buffers.active == ZORAN_FREE) {
1da177e4 669 if (zr->jpg_buffers.active == ZORAN_FREE) {
1159b7f1
TP		 670 zr->jpg_buffers = fh->buffers;
671 fh->buffers.active = ZORAN_ACTIVE;
1da177e4
LT		 672 } else {
673 dprintk(1,
674 KERN_ERR
c61402ba
TP		 675 "%s: %s - another session is already capturing\n",
676 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 677 res = -EBUSY;
678 }
679 }
680
681 if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
682 /* Ok load up the jpeg codec */
683 zr36057_enable_jpg(zr, mode);
684 }
685
8bc3efcf
RB		 686 spin_lock_irqsave(&zr->spinlock, flags);
687
1da177e4
LT		 688 if (!res) {
689 switch (zr->jpg_buffers.buffer[num].state) {
690 case BUZ_STATE_DONE:
691 dprintk(2,
692 KERN_WARNING
c61402ba
TP		 693 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
694 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 695 case BUZ_STATE_USER:
696 /* since there is at least one unused buffer there's room for at
697 *least one more pend[] entry */
1159b7f1 698 zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
1da177e4 699 zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
1159b7f1 700 fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
1da177e4
LT		 701 zoran_feed_stat_com(zr);
702 break;
703 default:
704 case BUZ_STATE_DMA:
705 case BUZ_STATE_PEND:
706 if (zr->jpg_buffers.active == ZORAN_FREE) {
1159b7f1 707 fh->buffers.active = ZORAN_FREE;
1da177e4
LT		 708 zr->jpg_buffers.allocated = 0;
709 }
710 res = -EBUSY; /* what are you doing? */
711 break;
712 }
713 }
714
715 spin_unlock_irqrestore(&zr->spinlock, flags);
716
1159b7f1
TP		 717 if (!res && zr->jpg_buffers.active == ZORAN_FREE)
718 zr->jpg_buffers.active = fh->buffers.active;
1da177e4
LT		 719
720 return res;
721}
722
e5ee3f64 723static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
1da177e4 724{
1da177e4
LT		 725 struct zoran *zr = fh->zr;
726 int res = 0;
727
728 /* Does the user want to stop streaming? */
729 if (frame < 0) {
730 if (zr->codec_mode == mode) {
1159b7f1 731 if (fh->buffers.active == ZORAN_FREE) {
1da177e4
LT		 732 dprintk(1,
733 KERN_ERR
c61402ba
TP		 734 "%s: %s(-1) - session not active\n",
735 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 736 return -EINVAL;
737 }
1159b7f1 738 fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
1da177e4
LT		 739 zr->jpg_buffers.allocated = 0;
740 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
741 return 0;
742 } else {
743 dprintk(1,
744 KERN_ERR
c61402ba
TP		 745 "%s: %s - stop streaming but not in streaming mode\n",
746 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 747 return -EINVAL;
748 }
749 }
750
e5ee3f64 751 if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
1da177e4
LT		 752 return res;
753
754 /* Start the jpeg codec when the first frame is queued */
755 if (!res && zr->jpg_que_head == 1)
756 jpeg_start(zr);
757
758 return res;
759}
760
761/*
762 * Sync on a MJPEG buffer
763 */
764
e5ee3f64 765static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
1da177e4 766{
1da177e4
LT		 767 struct zoran *zr = fh->zr;
768 unsigned long flags;
769 int frame;
770
1159b7f1 771 if (fh->buffers.active == ZORAN_FREE) {
1da177e4
LT		 772 dprintk(1,
773 KERN_ERR
c61402ba
TP		 774 "%s: %s - capture is not currently active\n",
775 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 776 return -EINVAL;
777 }
778 if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
779 zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
780 dprintk(1,
781 KERN_ERR
c61402ba
TP		 782 "%s: %s - codec not in streaming mode\n",
783 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 784 return -EINVAL;
785 }
786 if (!wait_event_interruptible_timeout(zr->jpg_capq,
787 (zr->jpg_que_tail != zr->jpg_dma_tail ||
788 zr->jpg_dma_tail == zr->jpg_dma_head),
789 10*HZ)) {
790 int isr;
791
792 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
793 udelay(1);
794 zr->codec->control(zr->codec, CODEC_G_STATUS,
795 sizeof(isr), &isr);
796 dprintk(1,
797 KERN_ERR
c61402ba
TP		 798 "%s: %s - timeout: codec isr=0x%02x\n",
799 ZR_DEVNAME(zr), __func__, isr);
1da177e4
LT		 800
801 return -ETIME;
802
803 }
804 if (signal_pending(current))
805 return -ERESTARTSYS;
806
807 spin_lock_irqsave(&zr->spinlock, flags);
808
809 if (zr->jpg_dma_tail != zr->jpg_dma_head)
810 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
811 else
812 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
813
814 /* buffer should now be in BUZ_STATE_DONE */
18b548ca
JD		 815 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
816 dprintk(2,
c61402ba
TP		 817 KERN_ERR "%s: %s - internal state error\n",
818 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 819
820 *bs = zr->jpg_buffers.buffer[frame].bs;
821 bs->frame = frame;
822 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1159b7f1 823 fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1da177e4
LT		 824
825 spin_unlock_irqrestore(&zr->spinlock, flags);
826
827 return 0;
828}
829
e5ee3f64 830static void zoran_open_init_session(struct zoran_fh *fh)
1da177e4
LT		 831{
832 int i;
1da177e4
LT		 833 struct zoran *zr = fh->zr;
834
835 /* Per default, map the V4L Buffers */
1159b7f1 836 map_mode_raw(fh);
1da177e4
LT		 837
838 /* take over the card's current settings */
839 fh->overlay_settings = zr->overlay_settings;
840 fh->overlay_settings.is_set = 0;
841 fh->overlay_settings.format = zr->overlay_settings.format;
842 fh->overlay_active = ZORAN_FREE;
843
844 /* v4l settings */
845 fh->v4l_settings = zr->v4l_settings;
1da177e4
LT		 846 /* jpg settings */
847 fh->jpg_settings = zr->jpg_settings;
848
1159b7f1
TP		 849 /* buffers */
850 memset(&fh->buffers, 0, sizeof(fh->buffers));
851 for (i = 0; i < MAX_FRAME; i++) {
852 fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
853 fh->buffers.buffer[i].bs.frame = i;
1da177e4 854 }
1159b7f1
TP		 855 fh->buffers.allocated = 0;
856 fh->buffers.active = ZORAN_FREE;
1da177e4
LT		 857}
858
e5ee3f64 859static void zoran_close_end_session(struct zoran_fh *fh)
1da177e4 860{
1da177e4
LT		 861 struct zoran *zr = fh->zr;
862
863 /* overlay */
864 if (fh->overlay_active != ZORAN_FREE) {
865 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
866 zr->v4l_overlay_active = 0;
867 if (!zr->v4l_memgrab_active)
868 zr36057_overlay(zr, 0);
869 zr->overlay_mask = NULL;
870 }
871
1159b7f1
TP		 872 if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
873 /* v4l capture */
874 if (fh->buffers.active != ZORAN_FREE) {
875 unsigned long flags;
9896bbc1 876
1159b7f1
TP		 877 spin_lock_irqsave(&zr->spinlock, flags);
878 zr36057_set_memgrab(zr, 0);
879 zr->v4l_buffers.allocated = 0;
880 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
881 spin_unlock_irqrestore(&zr->spinlock, flags);
882 }
1da177e4 883
1159b7f1
TP		 884 /* v4l buffers */
885 if (fh->buffers.allocated)
e5ee3f64 886 v4l_fbuffer_free(fh);
1159b7f1
TP		 887 } else {
888 /* jpg capture */
889 if (fh->buffers.active != ZORAN_FREE) {
890 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
891 zr->jpg_buffers.allocated = 0;
892 zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
893 }
1da177e4 894
1159b7f1
TP		 895 /* jpg buffers */
896 if (fh->buffers.allocated)
e5ee3f64 897 jpg_fbuffer_free(fh);
1da177e4 898 }
1da177e4
LT		 899}
900
901/*
902 * Open a zoran card. Right now the flags stuff is just playing
903 */
904
601139e0 905static int zoran_open(struct file *file)
1da177e4 906{
601139e0 907 struct zoran *zr = video_drvdata(file);
1da177e4 908 struct zoran_fh *fh;
fc96ab73
TP		 909 int res, first_open = 0;
910
c61402ba
TP		 911 dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
912 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
1da177e4 913
0edf2e5e 914 mutex_lock(&zr->other_lock);
1da177e4 915
fc96ab73
TP		 916 if (zr->user >= 2048) {
917 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
918 ZR_DEVNAME(zr), zr->user);
919 res = -EBUSY;
920 goto fail_unlock;
921 }
922
1da177e4 923 /* now, create the open()-specific file_ops struct */
7408187d 924 fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1da177e4
LT		 925 if (!fh) {
926 dprintk(1,
927 KERN_ERR
c61402ba
TP		 928 "%s: %s - allocation of zoran_fh failed\n",
929 ZR_DEVNAME(zr), __func__);
1da177e4 930 res = -ENOMEM;
0ab6e1c3 931 goto fail_unlock;
1da177e4 932 }
1da177e4
LT		 933 /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
934 * on norm-change! */
935 fh->overlay_mask =
936 kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
937 if (!fh->overlay_mask) {
938 dprintk(1,
939 KERN_ERR
c61402ba
TP		 940 "%s: %s - allocation of overlay_mask failed\n",
941 ZR_DEVNAME(zr), __func__);
1da177e4 942 res = -ENOMEM;
fc96ab73 943 goto fail_fh;
1da177e4
LT		 944 }
945
946 if (zr->user++ == 0)
947 first_open = 1;
948
384c3689 949 /*mutex_unlock(&zr->resource_lock);*/
1da177e4
LT		 950
951 /* default setup - TODO: look at flags */
952 if (first_open) { /* First device open */
953 zr36057_restart(zr);
954 zoran_open_init_params(zr);
955 zoran_init_hardware(zr);
956
957 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
958 }
959
960 /* set file_ops stuff */
961 file->private_data = fh;
962 fh->zr = zr;
e5ee3f64 963 zoran_open_init_session(fh);
0edf2e5e 964 mutex_unlock(&zr->other_lock);
1da177e4
LT		 965
966 return 0;
967
fc96ab73
TP		 968fail_fh:
969 kfree(fh);
fc96ab73 970fail_unlock:
0edf2e5e 971 mutex_unlock(&zr->other_lock);
1da177e4 972
fc96ab73
TP		 973 dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
974 ZR_DEVNAME(zr), res, zr->user);
975
1da177e4
LT		 976 return res;
977}
978
979static int
bec43661 980zoran_close(struct file *file)
1da177e4
LT		 981{
982 struct zoran_fh *fh = file->private_data;
983 struct zoran *zr = fh->zr;
984
c61402ba
TP		 985 dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
986 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
1da177e4
LT		 987
988 /* kernel locks (fs/device.c), so don't do that ourselves
989 * (prevents deadlocks) */
0edf2e5e 990 mutex_lock(&zr->other_lock);
1da177e4 991
e5ee3f64 992 zoran_close_end_session(fh);
1da177e4
LT		 993
994 if (zr->user-- == 1) { /* Last process */
995 /* Clean up JPEG process */
996 wake_up_interruptible(&zr->jpg_capq);
997 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
998 zr->jpg_buffers.allocated = 0;
999 zr->jpg_buffers.active = ZORAN_FREE;
1000
1001 /* disable interrupts */
1002 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1003
18b548ca 1004 if (zr36067_debug > 1)
1da177e4
LT		 1005 print_interrupts(zr);
1006
1007 /* Overlay off */
1008 zr->v4l_overlay_active = 0;
1009 zr36057_overlay(zr, 0);
1010 zr->overlay_mask = NULL;
1011
1012 /* capture off */
1013 wake_up_interruptible(&zr->v4l_capq);
1014 zr36057_set_memgrab(zr, 0);
1015 zr->v4l_buffers.allocated = 0;
1016 zr->v4l_buffers.active = ZORAN_FREE;
1017 zoran_set_pci_master(zr, 0);
1018
1019 if (!pass_through) { /* Switch to color bar */
0ab6e1c3 1020 decoder_call(zr, video, s_stream, 0);
5325b427 1021 encoder_call(zr, video, s_routing, 2, 0, 0);
1da177e4
LT		 1022 }
1023 }
0edf2e5e 1024 mutex_unlock(&zr->other_lock);
1da177e4
LT		 1025
1026 file->private_data = NULL;
1027 kfree(fh->overlay_mask);
1028 kfree(fh);
1029
c61402ba 1030 dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1031
1032 return 0;
1033}
1034
1035
1036static ssize_t
1037zoran_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
1047static ssize_t
1048zoran_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
e5ee3f64 1058static int setup_fbuffer(struct zoran_fh *fh,
1da177e4
LT		 1059 void *base,
1060 const struct zoran_format *fmt,
1061 int width,
1062 int height,
1063 int bytesperline)
1064{
1da177e4
LT		 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
e355880b
AC		 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
1da177e4
LT		 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
c61402ba
TP		 1092 "%s: %s - forced overlay turnoff because framebuffer changed\n",
1093 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1094 zr36057_overlay(zr, 0);
1095 }
1096#endif
1097
1098 if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1099 dprintk(1,
1100 KERN_ERR
c61402ba
TP		 1101 "%s: %s - no valid overlay format given\n",
1102 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1103 return -EINVAL;
1104 }
1105 if (height <= 0 || width <= 0 || bytesperline <= 0) {
1106 dprintk(1,
1107 KERN_ERR
c61402ba
TP		 1108 "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1109 ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1da177e4
LT		 1110 return -EINVAL;
1111 }
1112 if (bytesperline & 3) {
1113 dprintk(1,
1114 KERN_ERR
c61402ba
TP		 1115 "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1116 ZR_DEVNAME(zr), __func__, bytesperline);
1da177e4
LT		 1117 return -EINVAL;
1118 }
1119
7f6adeaf
HV		 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;
1da177e4 1124 zr->overlay_settings.format = fmt;
7f6adeaf 1125 zr->vbuf_bytesperline = bytesperline;
1da177e4
LT		 1126
1127 /* The user should set new window parameters */
1128 zr->overlay_settings.is_set = 0;
1129
1130 return 0;
1131}
1132
1133
32898a14
XW		 1134static int setup_window(struct zoran_fh *fh,
1135 int x,
1136 int y,
1137 int width,
1138 int height,
1139 struct v4l2_clip __user *clips,
1140 unsigned int clipcount,
1141 void __user *bitmap)
1da177e4 1142{
1da177e4 1143 struct zoran *zr = fh->zr;
7f6adeaf 1144 struct v4l2_clip *vcp = NULL;
1da177e4
LT		 1145 int on, end;
1146
1147
7f6adeaf 1148 if (!zr->vbuf_base) {
1da177e4
LT		 1149 dprintk(1,
1150 KERN_ERR
c61402ba
TP		 1151 "%s: %s - frame buffer has to be set first\n",
1152 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1153 return -EINVAL;
1154 }
1155
1156 if (!fh->overlay_settings.format) {
1157 dprintk(1,
1158 KERN_ERR
c61402ba
TP		 1159 "%s: %s - no overlay format set\n",
1160 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1161 return -EINVAL;
1162 }
1163
32898a14
XW		 1164 if (clipcount > 2048) {
1165 dprintk(1,
1166 KERN_ERR
1167 "%s: %s - invalid clipcount\n",
1168 ZR_DEVNAME(zr), __func__);
1169 return -EINVAL;
1170 }
1171
1da177e4
LT		 1172 /*
1173 * The video front end needs 4-byte alinged line sizes, we correct that
1174 * silently here if necessary
1175 */
7f6adeaf 1176 if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1da177e4
LT		 1177 end = (x + width) & ~1; /* round down */
1178 x = (x + 1) & ~1; /* round up */
1179 width = end - x;
1180 }
1181
7f6adeaf 1182 if (zr->vbuf_depth == 24) {
1da177e4
LT		 1183 end = (x + width) & ~3; /* round down */
1184 x = (x + 3) & ~3; /* round up */
1185 width = end - x;
1186 }
1187
1188 if (width > BUZ_MAX_WIDTH)
1189 width = BUZ_MAX_WIDTH;
1190 if (height > BUZ_MAX_HEIGHT)
1191 height = BUZ_MAX_HEIGHT;
1192
817f2c84 1193 /* Check for invalid parameters */
1da177e4
LT		 1194 if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1195 width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1196 dprintk(1,
1197 KERN_ERR
c61402ba
TP		 1198 "%s: %s - width = %d or height = %d invalid\n",
1199 ZR_DEVNAME(zr), __func__, width, height);
1da177e4
LT		 1200 return -EINVAL;
1201 }
1202
1203 fh->overlay_settings.x = x;
1204 fh->overlay_settings.y = y;
1205 fh->overlay_settings.width = width;
1206 fh->overlay_settings.height = height;
1207 fh->overlay_settings.clipcount = clipcount;
1208
1209 /*
1210 * If an overlay is running, we have to switch it off
1211 * and switch it on again in order to get the new settings in effect.
1212 *
1213 * We also want to avoid that the overlay mask is written
1214 * when an overlay is running.
1215 */
1216
1217 on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1218 zr->overlay_active != ZORAN_FREE &&
1219 fh->overlay_active != ZORAN_FREE;
1220 if (on)
1221 zr36057_overlay(zr, 0);
1222
1223 /*
1224 * Write the overlay mask if clips are wanted.
1225 * We prefer a bitmap.
1226 */
1227 if (bitmap) {
1228 /* fake value - it just means we want clips */
1229 fh->overlay_settings.clipcount = 1;
1230
1231 if (copy_from_user(fh->overlay_mask, bitmap,
1232 (width * height + 7) / 8)) {
1233 return -EFAULT;
1234 }
32898a14 1235 } else if (clipcount) {
1da177e4 1236 /* write our own bitmap from the clips */
7f6adeaf 1237 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1da177e4
LT		 1238 if (vcp == NULL) {
1239 dprintk(1,
1240 KERN_ERR
c61402ba
TP		 1241 "%s: %s - Alloc of clip mask failed\n",
1242 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1243 return -ENOMEM;
1244 }
1245 if (copy_from_user
7f6adeaf 1246 (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1da177e4
LT		 1247 vfree(vcp);
1248 return -EFAULT;
1249 }
e5ee3f64 1250 write_overlay_mask(fh, vcp, clipcount);
1da177e4
LT		 1251 vfree(vcp);
1252 }
1253
1254 fh->overlay_settings.is_set = 1;
1255 if (fh->overlay_active != ZORAN_FREE &&
1256 zr->overlay_active != ZORAN_FREE)
1257 zr->overlay_settings = fh->overlay_settings;
1258
1259 if (on)
1260 zr36057_overlay(zr, 1);
1261
1262 /* Make sure the changes come into effect */
1263 return wait_grab_pending(zr);
1264}
1265
e5ee3f64 1266static int setup_overlay(struct zoran_fh *fh, int on)
1da177e4 1267{
1da177e4
LT		 1268 struct zoran *zr = fh->zr;
1269
25985edc 1270 /* If there is nothing to do, return immediately */
1da177e4
LT		 1271 if ((on && fh->overlay_active != ZORAN_FREE) ||
1272 (!on && fh->overlay_active == ZORAN_FREE))
1273 return 0;
1274
1275 /* check whether we're touching someone else's overlay */
1276 if (on && zr->overlay_active != ZORAN_FREE &&
1277 fh->overlay_active == ZORAN_FREE) {
1278 dprintk(1,
1279 KERN_ERR
c61402ba
TP		 1280 "%s: %s - overlay is already active for another session\n",
1281 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1282 return -EBUSY;
1283 }
1284 if (!on && zr->overlay_active != ZORAN_FREE &&
1285 fh->overlay_active == ZORAN_FREE) {
1286 dprintk(1,
1287 KERN_ERR
c61402ba
TP		 1288 "%s: %s - you cannot cancel someone else's session\n",
1289 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1290 return -EPERM;
1291 }
1292
1293 if (on == 0) {
1294 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1295 zr->v4l_overlay_active = 0;
1296 /* When a grab is running, the video simply
1297 * won't be switched on any more */
1298 if (!zr->v4l_memgrab_active)
1299 zr36057_overlay(zr, 0);
1300 zr->overlay_mask = NULL;
1301 } else {
7f6adeaf 1302 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1da177e4
LT		 1303 dprintk(1,
1304 KERN_ERR
c61402ba
TP		 1305 "%s: %s - buffer or window not set\n",
1306 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1307 return -EINVAL;
1308 }
1309 if (!fh->overlay_settings.format) {
1310 dprintk(1,
1311 KERN_ERR
c61402ba
TP		 1312 "%s: %s - no overlay format set\n",
1313 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1314 return -EINVAL;
1315 }
1316 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1317 zr->v4l_overlay_active = 1;
1318 zr->overlay_mask = fh->overlay_mask;
1319 zr->overlay_settings = fh->overlay_settings;
1320 if (!zr->v4l_memgrab_active)
1321 zr36057_overlay(zr, 1);
1322 /* When a grab is running, the video will be
1323 * switched on when grab is finished */
1324 }
1325
1326 /* Make sure the changes come into effect */
1327 return wait_grab_pending(zr);
1328}
1329
e5ee3f64
TP		 1330/* get the status of a buffer in the clients buffer queue */
1331static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1332 struct v4l2_buffer *buf, int num)
1da177e4 1333{
1da177e4 1334 struct zoran *zr = fh->zr;
1159b7f1 1335 unsigned long flags;
1da177e4 1336
1b18e7a0 1337 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1da177e4
LT		 1338
1339 switch (fh->map_mode) {
1340 case ZORAN_MAP_MODE_RAW:
1da177e4 1341 /* check range */
1159b7f1
TP		 1342 if (num < 0 || num >= fh->buffers.num_buffers ||
1343 !fh->buffers.allocated) {
1da177e4
LT		 1344 dprintk(1,
1345 KERN_ERR
c61402ba
TP		 1346 "%s: %s - wrong number or buffers not allocated\n",
1347 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1348 return -EINVAL;
1349 }
1350
1159b7f1
TP		 1351 spin_lock_irqsave(&zr->spinlock, flags);
1352 dprintk(3,
1353 KERN_DEBUG
1354 "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1355 ZR_DEVNAME(zr), __func__,
1356 "FAL"[fh->buffers.active], num,
1357 "UPMD"[zr->v4l_buffers.buffer[num].state],
1358 fh->buffers.buffer[num].map ? 'Y' : 'N');
1359 spin_unlock_irqrestore(&zr->spinlock, flags);
1360
1da177e4 1361 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1159b7f1 1362 buf->length = fh->buffers.buffer_size;
1da177e4
LT		 1363
1364 /* get buffer */
1159b7f1
TP		 1365 buf->bytesused = fh->buffers.buffer[num].bs.length;
1366 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1367 fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1368 buf->sequence = fh->buffers.buffer[num].bs.seq;
1da177e4 1369 buf->flags |= V4L2_BUF_FLAG_DONE;
1159b7f1 1370 buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1da177e4
LT		 1371 } else {
1372 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1373 }
1374
1375 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1376 buf->field = V4L2_FIELD_TOP;
1377 else
1378 buf->field = V4L2_FIELD_INTERLACED;
1379
1380 break;
1381
1382 case ZORAN_MAP_MODE_JPG_REC:
1383 case ZORAN_MAP_MODE_JPG_PLAY:
1384
1385 /* check range */
1159b7f1
TP		 1386 if (num < 0 || num >= fh->buffers.num_buffers ||
1387 !fh->buffers.allocated) {
1da177e4
LT		 1388 dprintk(1,
1389 KERN_ERR
c61402ba
TP		 1390 "%s: %s - wrong number or buffers not allocated\n",
1391 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1392 return -EINVAL;
1393 }
1394
1395 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1396 V4L2_BUF_TYPE_VIDEO_CAPTURE :
1397 V4L2_BUF_TYPE_VIDEO_OUTPUT;
1159b7f1 1398 buf->length = fh->buffers.buffer_size;
1da177e4
LT		 1399
1400 /* these variables are only written after frame has been captured */
1159b7f1
TP		 1401 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1402 fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1403 buf->sequence = fh->buffers.buffer[num].bs.seq;
1404 buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1405 buf->bytesused = fh->buffers.buffer[num].bs.length;
1da177e4
LT		 1406 buf->flags |= V4L2_BUF_FLAG_DONE;
1407 } else {
1408 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1409 }
1410
1411 /* which fields are these? */
1412 if (fh->jpg_settings.TmpDcm != 1)
1159b7f1
TP		 1413 buf->field = fh->jpg_settings.odd_even ?
1414 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1da177e4 1415 else
1159b7f1
TP		 1416 buf->field = fh->jpg_settings.odd_even ?
1417 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1da177e4
LT		 1418
1419 break;
1420
1421 default:
1422
1423 dprintk(5,
1424 KERN_ERR
c61402ba
TP		 1425 "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1426 ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1da177e4
LT		 1427 return -EINVAL;
1428 }
1429
1430 buf->memory = V4L2_MEMORY_MMAP;
1431 buf->index = num;
1432 buf->m.offset = buf->length * num;
1433
1434 return 0;
1435}
1da177e4
LT		 1436
1437static int
1438zoran_set_norm (struct zoran *zr,
107063c6 1439 v4l2_std_id norm)
1da177e4 1440{
107063c6 1441 int on;
1da177e4
LT		 1442
1443 if (zr->v4l_buffers.active != ZORAN_FREE ||
1444 zr->jpg_buffers.active != ZORAN_FREE) {
1445 dprintk(1,
1446 KERN_WARNING
c61402ba
TP		 1447 "%s: %s called while in playback/capture mode\n",
1448 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1449 return -EBUSY;
1450 }
1451
107063c6 1452 if (!(norm & zr->card.norms)) {
1da177e4 1453 dprintk(1,
c61402ba
TP		 1454 KERN_ERR "%s: %s - unsupported norm %llx\n",
1455 ZR_DEVNAME(zr), __func__, norm);
1da177e4
LT		 1456 return -EINVAL;
1457 }
1458
107063c6 1459 if (norm == V4L2_STD_ALL) {
db1b7265 1460 unsigned int status = 0;
107063c6 1461 v4l2_std_id std = 0;
1da177e4 1462
0ab6e1c3 1463 decoder_call(zr, video, querystd, &std);
f41737ec 1464 decoder_call(zr, core, s_std, std);
1da177e4
LT		 1465
1466 /* let changes come into effect */
1467 ssleep(2);
1468
0ab6e1c3 1469 decoder_call(zr, video, g_input_status, &status);
107063c6 1470 if (status & V4L2_IN_ST_NO_SIGNAL) {
1da177e4
LT		 1471 dprintk(1,
1472 KERN_ERR
c61402ba
TP		 1473 "%s: %s - no norm detected\n",
1474 ZR_DEVNAME(zr), __func__);
1da177e4 1475 /* reset norm */
f41737ec 1476 decoder_call(zr, core, s_std, zr->norm);
1da177e4
LT		 1477 return -EIO;
1478 }
1479
107063c6 1480 norm = std;
1da177e4 1481 }
107063c6
HV		 1482 if (norm & V4L2_STD_SECAM)
1483 zr->timing = zr->card.tvn[2];
1484 else if (norm & V4L2_STD_NTSC)
1485 zr->timing = zr->card.tvn[1];
1486 else
1487 zr->timing = zr->card.tvn[0];
1da177e4
LT		 1488
1489 /* We switch overlay off and on since a change in the
1490 * norm needs different VFE settings */
1491 on = zr->overlay_active && !zr->v4l_memgrab_active;
1492 if (on)
1493 zr36057_overlay(zr, 0);
1494
f41737ec 1495 decoder_call(zr, core, s_std, norm);
0ab6e1c3 1496 encoder_call(zr, video, s_std_output, norm);
1da177e4
LT		 1497
1498 if (on)
1499 zr36057_overlay(zr, 1);
1500
1501 /* Make sure the changes come into effect */
1502 zr->norm = norm;
1503
1504 return 0;
1505}
1506
1507static int
1508zoran_set_input (struct zoran *zr,
1509 int input)
1510{
1da177e4
LT		 1511 if (input == zr->input) {
1512 return 0;
1513 }
1514
1515 if (zr->v4l_buffers.active != ZORAN_FREE ||
1516 zr->jpg_buffers.active != ZORAN_FREE) {
1517 dprintk(1,
1518 KERN_WARNING
c61402ba
TP		 1519 "%s: %s called while in playback/capture mode\n",
1520 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 1521 return -EBUSY;
1522 }
1523
1524 if (input < 0 || input >= zr->card.inputs) {
1525 dprintk(1,
1526 KERN_ERR
c61402ba
TP		 1527 "%s: %s - unnsupported input %d\n",
1528 ZR_DEVNAME(zr), __func__, input);
1da177e4
LT		 1529 return -EINVAL;
1530 }
1531
1da177e4
LT		 1532 zr->input = input;
1533
5325b427
HV		 1534 decoder_call(zr, video, s_routing,
1535 zr->card.input[input].muxsel, 0, 0);
1da177e4
LT		 1536
1537 return 0;
1538}
1539
1540/*
1541 * ioctl routine
1542 */
1543
96b8e145
HV		 1544static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1545{
1546 struct zoran_fh *fh = __fh;
1547 struct zoran *zr = fh->zr;
1da177e4 1548
96b8e145
HV		 1549 memset(cap, 0, sizeof(*cap));
1550 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1551 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1552 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1553 pci_name(zr->pci_dev));
602dd48a
HV		 1554 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1555 V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
96b8e145
HV		 1556 return 0;
1557}
1da177e4 1558
96b8e145
HV		 1559static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1560{
171f48e2
TP		 1561 unsigned int num, i;
1562
1563 for (num = i = 0; i < NUM_FORMATS; i++) {
1564 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1565 strncpy(fmt->description, zoran_formats[i].name,
1566 sizeof(fmt->description) - 1);
42b2aa86 1567 /* fmt struct pre-zeroed, so adding '\0' not needed */
171f48e2
TP		 1568 fmt->pixelformat = zoran_formats[i].fourcc;
1569 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1570 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1571 return 0;
1572 }
1da177e4 1573 }
171f48e2 1574 return -EINVAL;
96b8e145 1575}
1da177e4 1576
96b8e145
HV		 1577static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1578 struct v4l2_fmtdesc *f)
1579{
1580 struct zoran_fh *fh = __fh;
1581 struct zoran *zr = fh->zr;
1da177e4 1582
96b8e145
HV		 1583 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1584}
1da177e4 1585
96b8e145
HV		 1586static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1587 struct v4l2_fmtdesc *f)
1588{
1589 struct zoran_fh *fh = __fh;
1590 struct zoran *zr = fh->zr;
1da177e4 1591
96b8e145
HV		 1592 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1593}
1da177e4 1594
96b8e145
HV		 1595static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1596 struct v4l2_fmtdesc *f)
1597{
1598 struct zoran_fh *fh = __fh;
1599 struct zoran *zr = fh->zr;
1da177e4 1600
96b8e145
HV		 1601 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1602}
1da177e4 1603
96b8e145
HV		 1604static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1605 struct v4l2_format *fmt)
1606{
1607 struct zoran_fh *fh = __fh;
1608 struct zoran *zr = fh->zr;
1da177e4 1609
96b8e145 1610 mutex_lock(&zr->resource_lock);
1da177e4 1611
96b8e145 1612 fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
5ca75b00 1613 fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
96b8e145
HV		 1614 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1615 fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1616 fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1617 if (fh->jpg_settings.TmpDcm == 1)
1618 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
3e66793b 1619 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
96b8e145
HV		 1620 else
1621 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1622 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1623 fmt->fmt.pix.bytesperline = 0;
1624 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1da177e4 1625
96b8e145
HV		 1626 mutex_unlock(&zr->resource_lock);
1627 return 0;
1628}
1da177e4 1629
96b8e145
HV		 1630static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1631 struct v4l2_format *fmt)
1632{
1633 struct zoran_fh *fh = __fh;
1634 struct zoran *zr = fh->zr;
1da177e4 1635
96b8e145
HV		 1636 if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1637 return zoran_g_fmt_vid_out(file, fh, fmt);
1da177e4 1638
96b8e145
HV		 1639 mutex_lock(&zr->resource_lock);
1640 fmt->fmt.pix.width = fh->v4l_settings.width;
1641 fmt->fmt.pix.height = fh->v4l_settings.height;
1642 fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1643 fh->v4l_settings.height;
1644 fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1645 fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1646 fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1647 if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1648 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1649 else
1650 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1651 mutex_unlock(&zr->resource_lock);
1652 return 0;
1653}
1da177e4 1654
96b8e145
HV		 1655static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1656 struct v4l2_format *fmt)
1657{
1658 struct zoran_fh *fh = __fh;
1659 struct zoran *zr = fh->zr;
1da177e4 1660
96b8e145 1661 mutex_lock(&zr->resource_lock);
1da177e4 1662
96b8e145
HV		 1663 fmt->fmt.win.w.left = fh->overlay_settings.x;
1664 fmt->fmt.win.w.top = fh->overlay_settings.y;
1665 fmt->fmt.win.w.width = fh->overlay_settings.width;
1666 fmt->fmt.win.w.height = fh->overlay_settings.height;
1667 if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1668 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1669 else
1670 fmt->fmt.win.field = V4L2_FIELD_TOP;
1da177e4 1671
96b8e145
HV		 1672 mutex_unlock(&zr->resource_lock);
1673 return 0;
1674}
1da177e4 1675
96b8e145
HV		 1676static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1677 struct v4l2_format *fmt)
1678{
1679 struct zoran_fh *fh = __fh;
1680 struct zoran *zr = fh->zr;
1da177e4 1681
96b8e145 1682 mutex_lock(&zr->resource_lock);
1da177e4 1683
96b8e145
HV		 1684 if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1685 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1686 if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1687 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1688 if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1689 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1690 if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1691 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1da177e4 1692
96b8e145
HV		 1693 mutex_unlock(&zr->resource_lock);
1694 return 0;
1695}
1da177e4 1696
96b8e145
HV		 1697static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1698 struct v4l2_format *fmt)
1699{
1700 struct zoran_fh *fh = __fh;
1701 struct zoran *zr = fh->zr;
1702 struct zoran_jpg_settings settings;
1703 int res = 0;
1da177e4 1704
96b8e145
HV		 1705 if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1706 return -EINVAL;
1da177e4 1707
96b8e145
HV		 1708 mutex_lock(&zr->resource_lock);
1709 settings = fh->jpg_settings;
1da177e4 1710
96b8e145
HV		 1711 /* we actually need to set 'real' parameters now */
1712 if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1713 settings.TmpDcm = 1;
1714 else
1715 settings.TmpDcm = 2;
1716 settings.decimation = 0;
1717 if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1718 settings.VerDcm = 2;
1719 else
1720 settings.VerDcm = 1;
1721 if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1722 settings.HorDcm = 4;
1723 else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1724 settings.HorDcm = 2;
1725 else
1726 settings.HorDcm = 1;
1727 if (settings.TmpDcm == 1)
1728 settings.field_per_buff = 2;
1729 else
1730 settings.field_per_buff = 1;
1731
886fe23d
HV		 1732 if (settings.HorDcm > 1) {
1733 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1734 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1735 } else {
1736 settings.img_x = 0;
1737 settings.img_width = BUZ_MAX_WIDTH;
1738 }
1739
96b8e145 1740 /* check */
0ba514d5 1741 res = zoran_check_jpg_settings(zr, &settings, 1);
96b8e145
HV		 1742 if (res)
1743 goto tryfmt_unlock_and_return;
1744
1745 /* tell the user what we actually did */
1746 fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1747 fmt->fmt.pix.height = settings.img_height * 2 /
1748 (settings.TmpDcm * settings.VerDcm);
1749 if (settings.TmpDcm == 1)
1750 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1751 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1752 else
1753 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1754 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1da177e4 1755
96b8e145 1756 fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
886fe23d
HV		 1757 fmt->fmt.pix.bytesperline = 0;
1758 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
96b8e145
HV		 1759tryfmt_unlock_and_return:
1760 mutex_unlock(&zr->resource_lock);
1761 return res;
1762}
1da177e4 1763
96b8e145
HV		 1764static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1765 struct v4l2_format *fmt)
1766{
1767 struct zoran_fh *fh = __fh;
1768 struct zoran *zr = fh->zr;
0ba514d5 1769 int bpp;
96b8e145 1770 int i;
1da177e4 1771
96b8e145
HV		 1772 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1773 return zoran_try_fmt_vid_out(file, fh, fmt);
1da177e4 1774
96b8e145 1775 mutex_lock(&zr->resource_lock);
1da177e4 1776
96b8e145
HV		 1777 for (i = 0; i < NUM_FORMATS; i++)
1778 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1779 break;
1da177e4 1780
96b8e145 1781 if (i == NUM_FORMATS) {
384c3689 1782 mutex_unlock(&zr->resource_lock);
96b8e145 1783 return -EINVAL;
1da177e4 1784 }
1da177e4 1785
728f5b93
TP		 1786 bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1787 v4l_bound_align_image(
1788 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1789 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
96b8e145 1790 mutex_unlock(&zr->resource_lock);
1da177e4 1791
96b8e145
HV		 1792 return 0;
1793}
1da177e4 1794
96b8e145
HV		 1795static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1796 struct v4l2_format *fmt)
1797{
1798 struct zoran_fh *fh = __fh;
1799 struct zoran *zr = fh->zr;
1800 int res;
1801
1802 dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1803 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1804 fmt->fmt.win.w.width,
1805 fmt->fmt.win.w.height,
1806 fmt->fmt.win.clipcount,
1807 fmt->fmt.win.bitmap);
1808 mutex_lock(&zr->resource_lock);
e5ee3f64
TP		 1809 res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1810 fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1811 (struct v4l2_clip __user *)fmt->fmt.win.clips,
1812 fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
96b8e145
HV		 1813 mutex_unlock(&zr->resource_lock);
1814 return res;
1815}
1da177e4 1816
96b8e145
HV		 1817static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1818 struct v4l2_format *fmt)
1819{
1820 struct zoran_fh *fh = __fh;
1821 struct zoran *zr = fh->zr;
1822 __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1823 struct zoran_jpg_settings settings;
1824 int res = 0;
1da177e4 1825
96b8e145
HV		 1826 dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1827 fmt->fmt.pix.width, fmt->fmt.pix.height,
1828 fmt->fmt.pix.pixelformat,
1829 (char *) &printformat);
1830 if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1831 return -EINVAL;
1da177e4 1832
96b8e145 1833 mutex_lock(&zr->resource_lock);
1da177e4 1834
1159b7f1 1835 if (fh->buffers.allocated) {
96b8e145 1836 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1159b7f1 1837 ZR_DEVNAME(zr));
96b8e145
HV		 1838 res = -EBUSY;
1839 goto sfmtjpg_unlock_and_return;
1840 }
1da177e4 1841
1159b7f1
TP		 1842 settings = fh->jpg_settings;
1843
96b8e145 1844 /* we actually need to set 'real' parameters now */
7f37cc9b 1845 if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
96b8e145
HV		 1846 settings.TmpDcm = 1;
1847 else
1848 settings.TmpDcm = 2;
1849 settings.decimation = 0;
1850 if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1851 settings.VerDcm = 2;
1852 else
1853 settings.VerDcm = 1;
1854 if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1855 settings.HorDcm = 4;
1856 else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1857 settings.HorDcm = 2;
1858 else
1859 settings.HorDcm = 1;
1860 if (settings.TmpDcm == 1)
1861 settings.field_per_buff = 2;
1862 else
1863 settings.field_per_buff = 1;
1864
0ba514d5
HV		 1865 if (settings.HorDcm > 1) {
1866 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1867 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1868 } else {
1869 settings.img_x = 0;
1870 settings.img_width = BUZ_MAX_WIDTH;
1871 }
1872
96b8e145 1873 /* check */
0ba514d5 1874 res = zoran_check_jpg_settings(zr, &settings, 0);
96b8e145
HV		 1875 if (res)
1876 goto sfmtjpg_unlock_and_return;
1877
1878 /* it's ok, so set them */
1879 fh->jpg_settings = settings;
1880
1159b7f1
TP		 1881 map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1882 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1883
96b8e145
HV		 1884 /* tell the user what we actually did */
1885 fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1886 fmt->fmt.pix.height = settings.img_height * 2 /
1887 (settings.TmpDcm * settings.VerDcm);
1888 if (settings.TmpDcm == 1)
1889 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1890 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1891 else
1892 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1893 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
96b8e145 1894 fmt->fmt.pix.bytesperline = 0;
1159b7f1 1895 fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
96b8e145
HV		 1896 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1897
96b8e145
HV		 1898sfmtjpg_unlock_and_return:
1899 mutex_unlock(&zr->resource_lock);
1900 return res;
1901}
1da177e4 1902
96b8e145
HV		 1903static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1904 struct v4l2_format *fmt)
1905{
1906 struct zoran_fh *fh = __fh;
1907 struct zoran *zr = fh->zr;
1908 int i;
1909 int res = 0;
1da177e4 1910
96b8e145
HV		 1911 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1912 return zoran_s_fmt_vid_out(file, fh, fmt);
1da177e4 1913
96b8e145
HV		 1914 for (i = 0; i < NUM_FORMATS; i++)
1915 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1916 break;
1917 if (i == NUM_FORMATS) {
1918 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1919 ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1920 return -EINVAL;
1da177e4 1921 }
1159b7f1 1922
96b8e145 1923 mutex_lock(&zr->resource_lock);
1159b7f1
TP		 1924
1925 if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1926 fh->buffers.active != ZORAN_FREE) {
96b8e145
HV		 1927 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1928 ZR_DEVNAME(zr));
1929 res = -EBUSY;
1930 goto sfmtv4l_unlock_and_return;
1931 }
1932 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1933 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1934 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1935 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1936
1159b7f1
TP		 1937 map_mode_raw(fh);
1938
1939 res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1940 &zoran_formats[i]);
96b8e145
HV		 1941 if (res)
1942 goto sfmtv4l_unlock_and_return;
1943
1159b7f1 1944 /* tell the user the results/missing stuff */
96b8e145
HV		 1945 fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1946 fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1947 fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1948 if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1949 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1950 else
1951 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1da177e4 1952
96b8e145
HV		 1953sfmtv4l_unlock_and_return:
1954 mutex_unlock(&zr->resource_lock);
1955 return res;
1956}
1da177e4 1957
96b8e145
HV		 1958static int zoran_g_fbuf(struct file *file, void *__fh,
1959 struct v4l2_framebuffer *fb)
1960{
1961 struct zoran_fh *fh = __fh;
1962 struct zoran *zr = fh->zr;
1da177e4 1963
96b8e145
HV		 1964 memset(fb, 0, sizeof(*fb));
1965 mutex_lock(&zr->resource_lock);
7f6adeaf
HV		 1966 fb->base = zr->vbuf_base;
1967 fb->fmt.width = zr->vbuf_width;
1968 fb->fmt.height = zr->vbuf_height;
96b8e145
HV		 1969 if (zr->overlay_settings.format)
1970 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
7f6adeaf 1971 fb->fmt.bytesperline = zr->vbuf_bytesperline;
96b8e145
HV		 1972 mutex_unlock(&zr->resource_lock);
1973 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1974 fb->fmt.field = V4L2_FIELD_INTERLACED;
96b8e145 1975 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1da177e4 1976
96b8e145
HV		 1977 return 0;
1978}
1da177e4 1979
96b8e145 1980static int zoran_s_fbuf(struct file *file, void *__fh,
e6eb28c2 1981 const struct v4l2_framebuffer *fb)
96b8e145
HV		 1982{
1983 struct zoran_fh *fh = __fh;
1984 struct zoran *zr = fh->zr;
1985 int i, res = 0;
1986 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1da177e4 1987
96b8e145
HV		 1988 for (i = 0; i < NUM_FORMATS; i++)
1989 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1da177e4 1990 break;
96b8e145
HV		 1991 if (i == NUM_FORMATS) {
1992 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1993 ZR_DEVNAME(zr), fb->fmt.pixelformat,
1994 (char *)&printformat);
1995 return -EINVAL;
1da177e4 1996 }
1da177e4 1997
96b8e145 1998 mutex_lock(&zr->resource_lock);
e5ee3f64
TP		 1999 res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
2000 fb->fmt.height, fb->fmt.bytesperline);
96b8e145 2001 mutex_unlock(&zr->resource_lock);
1da177e4 2002
96b8e145
HV		 2003 return res;
2004}
1da177e4 2005
96b8e145
HV		 2006static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
2007{
2008 struct zoran_fh *fh = __fh;
2009 struct zoran *zr = fh->zr;
2010 int res;
1da177e4 2011
96b8e145 2012 mutex_lock(&zr->resource_lock);
e5ee3f64 2013 res = setup_overlay(fh, on);
96b8e145 2014 mutex_unlock(&zr->resource_lock);
1da177e4 2015
96b8e145
HV		 2016 return res;
2017}
1da177e4 2018
84c1b094
HV		 2019static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
2020
96b8e145
HV		 2021static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2022{
2023 struct zoran_fh *fh = __fh;
2024 struct zoran *zr = fh->zr;
2025 int res = 0;
1da177e4 2026
96b8e145 2027 if (req->memory != V4L2_MEMORY_MMAP) {
84c1b094 2028 dprintk(2,
96b8e145
HV		 2029 KERN_ERR
2030 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2031 ZR_DEVNAME(zr), req->memory);
2032 return -EINVAL;
2033 }
1da177e4 2034
84c1b094
HV		 2035 if (req->count == 0)
2036 return zoran_streamoff(file, fh, req->type);
1da177e4 2037
84c1b094 2038 mutex_lock(&zr->resource_lock);
1159b7f1 2039 if (fh->buffers.allocated) {
84c1b094 2040 dprintk(2,
1da177e4 2041 KERN_ERR
7f37cc9b 2042 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
96b8e145
HV		 2043 ZR_DEVNAME(zr));
2044 res = -EBUSY;
2045 goto v4l2reqbuf_unlock_and_return;
1da177e4 2046 }
1da177e4 2047
96b8e145 2048 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
1159b7f1 2049 req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
96b8e145
HV		 2050 /* control user input */
2051 if (req->count < 2)
2052 req->count = 2;
2053 if (req->count > v4l_nbufs)
2054 req->count = v4l_nbufs;
1159b7f1
TP		 2055
2056 /* The next mmap will map the V4L buffers */
2057 map_mode_raw(fh);
2058 fh->buffers.num_buffers = req->count;
1da177e4 2059
e5ee3f64 2060 if (v4l_fbuffer_alloc(fh)) {
96b8e145
HV		 2061 res = -ENOMEM;
2062 goto v4l2reqbuf_unlock_and_return;
2063 }
96b8e145 2064 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
1159b7f1 2065 fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
96b8e145
HV		 2066 /* we need to calculate size ourselves now */
2067 if (req->count < 4)
2068 req->count = 4;
2069 if (req->count > jpg_nbufs)
2070 req->count = jpg_nbufs;
1159b7f1
TP		 2071
2072 /* The next mmap will map the MJPEG buffers */
2073 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2074 fh->buffers.num_buffers = req->count;
2075 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1da177e4 2076
e5ee3f64 2077 if (jpg_fbuffer_alloc(fh)) {
96b8e145
HV		 2078 res = -ENOMEM;
2079 goto v4l2reqbuf_unlock_and_return;
2080 }
96b8e145
HV		 2081 } else {
2082 dprintk(1,
1da177e4 2083 KERN_ERR
96b8e145
HV		 2084 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2085 ZR_DEVNAME(zr), req->type);
2086 res = -EINVAL;
2087 goto v4l2reqbuf_unlock_and_return;
1da177e4 2088 }
96b8e145
HV		 2089v4l2reqbuf_unlock_and_return:
2090 mutex_unlock(&zr->resource_lock);
1da177e4 2091
96b8e145
HV		 2092 return res;
2093}
1da177e4 2094
96b8e145
HV		 2095static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2096{
2097 struct zoran_fh *fh = __fh;
2098 struct zoran *zr = fh->zr;
9cfb6a3f 2099 int res;
1da177e4 2100
96b8e145 2101 mutex_lock(&zr->resource_lock);
e276f7b5 2102 res = zoran_v4l2_buffer_status(fh, buf, buf->index);
96b8e145 2103 mutex_unlock(&zr->resource_lock);
1da177e4 2104
96b8e145
HV		 2105 return res;
2106}
1da177e4 2107
96b8e145
HV		 2108static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2109{
2110 struct zoran_fh *fh = __fh;
2111 struct zoran *zr = fh->zr;
2112 int res = 0, codec_mode, buf_type;
1da177e4 2113
96b8e145 2114 mutex_lock(&zr->resource_lock);
1da177e4 2115
96b8e145
HV		 2116 switch (fh->map_mode) {
2117 case ZORAN_MAP_MODE_RAW:
2118 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2119 dprintk(1, KERN_ERR
2120 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2121 ZR_DEVNAME(zr), buf->type, fh->map_mode);
1da177e4 2122 res = -EINVAL;
96b8e145 2123 goto qbuf_unlock_and_return;
1da177e4 2124 }
1da177e4 2125
e5ee3f64 2126 res = zoran_v4l_queue_frame(fh, buf->index);
96b8e145
HV		 2127 if (res)
2128 goto qbuf_unlock_and_return;
1159b7f1 2129 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
96b8e145 2130 zr36057_set_memgrab(zr, 1);
1da177e4
LT		 2131 break;
2132
96b8e145
HV		 2133 case ZORAN_MAP_MODE_JPG_REC:
2134 case ZORAN_MAP_MODE_JPG_PLAY:
2135 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2136 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2137 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2138 } else {
2139 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2140 codec_mode = BUZ_MODE_MOTION_COMPRESS;
1da177e4
LT		 2141 }
2142
96b8e145
HV		 2143 if (buf->type != buf_type) {
2144 dprintk(1, KERN_ERR
2145 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2146 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2147 res = -EINVAL;
2148 goto qbuf_unlock_and_return;
1da177e4
LT		 2149 }
2150
e5ee3f64 2151 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
96b8e145
HV		 2152 if (res != 0)
2153 goto qbuf_unlock_and_return;
2154 if (zr->codec_mode == BUZ_MODE_IDLE &&
1159b7f1 2155 fh->buffers.active == ZORAN_LOCKED)
96b8e145 2156 zr36057_enable_jpg(zr, codec_mode);
1159b7f1 2157
96b8e145 2158 break;
1da177e4 2159
96b8e145
HV		 2160 default:
2161 dprintk(1, KERN_ERR
2162 "%s: VIDIOC_QBUF - unsupported type %d\n",
2163 ZR_DEVNAME(zr), buf->type);
2164 res = -EINVAL;
1da177e4 2165 break;
96b8e145
HV		 2166 }
2167qbuf_unlock_and_return:
2168 mutex_unlock(&zr->resource_lock);
1da177e4 2169
96b8e145
HV		 2170 return res;
2171}
1da177e4 2172
96b8e145
HV		 2173static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2174{
2175 struct zoran_fh *fh = __fh;
2176 struct zoran *zr = fh->zr;
2177 int res = 0, buf_type, num = -1; /* compiler borks here (?) */
1da177e4 2178
96b8e145 2179 mutex_lock(&zr->resource_lock);
1da177e4 2180
96b8e145
HV		 2181 switch (fh->map_mode) {
2182 case ZORAN_MAP_MODE_RAW:
2183 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2184 dprintk(1, KERN_ERR
2185 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2186 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2187 res = -EINVAL;
2188 goto dqbuf_unlock_and_return;
1da177e4
LT		 2189 }
2190
96b8e145
HV		 2191 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2192 if (file->f_flags & O_NONBLOCK &&
2193 zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2194 res = -EAGAIN;
2195 goto dqbuf_unlock_and_return;
1da177e4 2196 }
e5ee3f64 2197 res = v4l_sync(fh, num);
96b8e145
HV		 2198 if (res)
2199 goto dqbuf_unlock_and_return;
2200 zr->v4l_sync_tail++;
e276f7b5 2201 res = zoran_v4l2_buffer_status(fh, buf, num);
1da177e4
LT		 2202 break;
2203
96b8e145
HV		 2204 case ZORAN_MAP_MODE_JPG_REC:
2205 case ZORAN_MAP_MODE_JPG_PLAY:
1da177e4 2206 {
96b8e145 2207 struct zoran_sync bs;
1da177e4 2208
96b8e145
HV		 2209 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2210 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2211 else
2212 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1da177e4 2213
96b8e145
HV		 2214 if (buf->type != buf_type) {
2215 dprintk(1, KERN_ERR
2216 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2217 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2218 res = -EINVAL;
2219 goto dqbuf_unlock_and_return;
1da177e4
LT		 2220 }
2221
96b8e145 2222 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1da177e4 2223
96b8e145
HV		 2224 if (file->f_flags & O_NONBLOCK &&
2225 zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2226 res = -EAGAIN;
2227 goto dqbuf_unlock_and_return;
2228 }
1a5e5af0 2229 bs.frame = 0; /* suppress compiler warning */
e5ee3f64 2230 res = jpg_sync(fh, &bs);
96b8e145
HV		 2231 if (res)
2232 goto dqbuf_unlock_and_return;
e276f7b5 2233 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
96b8e145 2234 break;
1da177e4 2235 }
96b8e145
HV		 2236
2237 default:
2238 dprintk(1, KERN_ERR
2239 "%s: VIDIOC_DQBUF - unsupported type %d\n",
2240 ZR_DEVNAME(zr), buf->type);
2241 res = -EINVAL;
1da177e4 2242 break;
96b8e145
HV		 2243 }
2244dqbuf_unlock_and_return:
2245 mutex_unlock(&zr->resource_lock);
1da177e4 2246
96b8e145
HV		 2247 return res;
2248}
1da177e4 2249
96b8e145
HV		 2250static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2251{
2252 struct zoran_fh *fh = __fh;
2253 struct zoran *zr = fh->zr;
2254 int res = 0;
1da177e4 2255
96b8e145 2256 mutex_lock(&zr->resource_lock);
1da177e4 2257
96b8e145
HV		 2258 switch (fh->map_mode) {
2259 case ZORAN_MAP_MODE_RAW: /* raw capture */
2260 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
1159b7f1 2261 fh->buffers.active != ZORAN_ACTIVE) {
96b8e145
HV		 2262 res = -EBUSY;
2263 goto strmon_unlock_and_return;
1da177e4
LT		 2264 }
2265
1159b7f1 2266 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
96b8e145
HV		 2267 zr->v4l_settings = fh->v4l_settings;
2268
2269 zr->v4l_sync_tail = zr->v4l_pend_tail;
2270 if (!zr->v4l_memgrab_active &&
2271 zr->v4l_pend_head != zr->v4l_pend_tail) {
2272 zr36057_set_memgrab(zr, 1);
2273 }
1da177e4
LT		 2274 break;
2275
96b8e145
HV		 2276 case ZORAN_MAP_MODE_JPG_REC:
2277 case ZORAN_MAP_MODE_JPG_PLAY:
2278 /* what is the codec mode right now? */
2279 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
1159b7f1 2280 fh->buffers.active != ZORAN_ACTIVE) {
96b8e145
HV		 2281 res = -EBUSY;
2282 goto strmon_unlock_and_return;
2283 }
1da177e4 2284
1159b7f1 2285 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
1da177e4 2286
96b8e145
HV		 2287 if (zr->jpg_que_head != zr->jpg_que_tail) {
2288 /* Start the jpeg codec when the first frame is queued */
2289 jpeg_start(zr);
1da177e4 2290 }
96b8e145 2291 break;
1da177e4 2292
96b8e145
HV		 2293 default:
2294 dprintk(1,
2295 KERN_ERR
2296 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2297 ZR_DEVNAME(zr), fh->map_mode);
2298 res = -EINVAL;
1da177e4 2299 break;
96b8e145
HV		 2300 }
2301strmon_unlock_and_return:
2302 mutex_unlock(&zr->resource_lock);
1da177e4 2303
96b8e145
HV		 2304 return res;
2305}
2306
2307static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2308{
2309 struct zoran_fh *fh = __fh;
2310 struct zoran *zr = fh->zr;
2311 int i, res = 0;
1159b7f1 2312 unsigned long flags;
1da177e4 2313
96b8e145 2314 mutex_lock(&zr->resource_lock);
1da177e4 2315
96b8e145
HV		 2316 switch (fh->map_mode) {
2317 case ZORAN_MAP_MODE_RAW: /* raw capture */
1159b7f1 2318 if (fh->buffers.active == ZORAN_FREE &&
96b8e145
HV		 2319 zr->v4l_buffers.active != ZORAN_FREE) {
2320 res = -EPERM; /* stay off other's settings! */
2321 goto strmoff_unlock_and_return;
1da177e4 2322 }
96b8e145
HV		 2323 if (zr->v4l_buffers.active == ZORAN_FREE)
2324 goto strmoff_unlock_and_return;
1da177e4 2325
1159b7f1 2326 spin_lock_irqsave(&zr->spinlock, flags);
96b8e145
HV		 2327 /* unload capture */
2328 if (zr->v4l_memgrab_active) {
1da177e4 2329
96b8e145 2330 zr36057_set_memgrab(zr, 0);
1da177e4 2331 }
1da177e4 2332
1159b7f1 2333 for (i = 0; i < fh->buffers.num_buffers; i++)
96b8e145 2334 zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
1159b7f1 2335 fh->buffers = zr->v4l_buffers;
1da177e4 2336
1159b7f1 2337 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
1da177e4 2338
96b8e145
HV		 2339 zr->v4l_grab_seq = 0;
2340 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2341 zr->v4l_sync_tail = 0;
1da177e4 2342
1159b7f1
TP		 2343 spin_unlock_irqrestore(&zr->spinlock, flags);
2344
96b8e145 2345 break;
1da177e4 2346
96b8e145
HV		 2347 case ZORAN_MAP_MODE_JPG_REC:
2348 case ZORAN_MAP_MODE_JPG_PLAY:
1159b7f1 2349 if (fh->buffers.active == ZORAN_FREE &&
96b8e145
HV		 2350 zr->jpg_buffers.active != ZORAN_FREE) {
2351 res = -EPERM; /* stay off other's settings! */
2352 goto strmoff_unlock_and_return;
2353 }
2354 if (zr->jpg_buffers.active == ZORAN_FREE)
2355 goto strmoff_unlock_and_return;
2356
e5ee3f64 2357 res = jpg_qbuf(fh, -1,
96b8e145
HV		 2358 (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2359 BUZ_MODE_MOTION_COMPRESS :
2360 BUZ_MODE_MOTION_DECOMPRESS);
2361 if (res)
2362 goto strmoff_unlock_and_return;
2363 break;
2364 default:
2365 dprintk(1, KERN_ERR
2366 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2367 ZR_DEVNAME(zr), fh->map_mode);
2368 res = -EINVAL;
1da177e4 2369 break;
96b8e145
HV		 2370 }
2371strmoff_unlock_and_return:
2372 mutex_unlock(&zr->resource_lock);
1da177e4 2373
96b8e145
HV		 2374 return res;
2375}
1da177e4 2376
96b8e145
HV		 2377static int zoran_queryctrl(struct file *file, void *__fh,
2378 struct v4l2_queryctrl *ctrl)
2379{
107063c6
HV		 2380 struct zoran_fh *fh = __fh;
2381 struct zoran *zr = fh->zr;
2382
96b8e145
HV		 2383 /* we only support hue/saturation/contrast/brightness */
2384 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2385 ctrl->id > V4L2_CID_HUE)
2386 return -EINVAL;
1da177e4 2387
0ab6e1c3 2388 decoder_call(zr, core, queryctrl, ctrl);
1da177e4 2389
96b8e145
HV		 2390 return 0;
2391}
1da177e4 2392
96b8e145
HV		 2393static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2394{
2395 struct zoran_fh *fh = __fh;
2396 struct zoran *zr = fh->zr;
1da177e4 2397
96b8e145
HV		 2398 /* we only support hue/saturation/contrast/brightness */
2399 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2400 ctrl->id > V4L2_CID_HUE)
2401 return -EINVAL;
1da177e4 2402
96b8e145 2403 mutex_lock(&zr->resource_lock);
0ab6e1c3 2404 decoder_call(zr, core, g_ctrl, ctrl);
96b8e145 2405 mutex_unlock(&zr->resource_lock);
1da177e4 2406
96b8e145
HV		 2407 return 0;
2408}
1da177e4 2409
96b8e145
HV		 2410static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2411{
2412 struct zoran_fh *fh = __fh;
2413 struct zoran *zr = fh->zr;
1da177e4 2414
96b8e145
HV		 2415 /* we only support hue/saturation/contrast/brightness */
2416 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2417 ctrl->id > V4L2_CID_HUE)
2418 return -EINVAL;
1da177e4 2419
96b8e145 2420 mutex_lock(&zr->resource_lock);
0ab6e1c3 2421 decoder_call(zr, core, s_ctrl, ctrl);
96b8e145 2422 mutex_unlock(&zr->resource_lock);
1da177e4 2423
96b8e145
HV		 2424 return 0;
2425}
1da177e4 2426
96b8e145
HV		 2427static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2428{
2429 struct zoran_fh *fh = __fh;
2430 struct zoran *zr = fh->zr;
96b8e145
HV		 2431
2432 mutex_lock(&zr->resource_lock);
107063c6 2433 *std = zr->norm;
96b8e145 2434 mutex_unlock(&zr->resource_lock);
96b8e145
HV		 2435 return 0;
2436}
1da177e4 2437
314527ac 2438static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
96b8e145
HV		 2439{
2440 struct zoran_fh *fh = __fh;
2441 struct zoran *zr = fh->zr;
107063c6 2442 int res = 0;
1da177e4 2443
96b8e145 2444 mutex_lock(&zr->resource_lock);
314527ac 2445 res = zoran_set_norm(zr, std);
96b8e145
HV		 2446 if (res)
2447 goto sstd_unlock_and_return;
1da177e4 2448
96b8e145
HV		 2449 res = wait_grab_pending(zr);
2450sstd_unlock_and_return:
2451 mutex_unlock(&zr->resource_lock);
2452 return res;
2453}
1da177e4 2454
96b8e145
HV		 2455static int zoran_enum_input(struct file *file, void *__fh,
2456 struct v4l2_input *inp)
2457{
2458 struct zoran_fh *fh = __fh;
2459 struct zoran *zr = fh->zr;
1da177e4 2460
f14a2972 2461 if (inp->index >= zr->card.inputs)
96b8e145 2462 return -EINVAL;
1da177e4 2463
96b8e145
HV		 2464 strncpy(inp->name, zr->card.input[inp->index].name,
2465 sizeof(inp->name) - 1);
2466 inp->type = V4L2_INPUT_TYPE_CAMERA;
2467 inp->std = V4L2_STD_ALL;
1da177e4 2468
96b8e145
HV		 2469 /* Get status of video decoder */
2470 mutex_lock(&zr->resource_lock);
0ab6e1c3 2471 decoder_call(zr, video, g_input_status, &inp->status);
96b8e145 2472 mutex_unlock(&zr->resource_lock);
96b8e145
HV		 2473 return 0;
2474}
1da177e4 2475
96b8e145
HV		 2476static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2477{
2478 struct zoran_fh *fh = __fh;
2479 struct zoran *zr = fh->zr;
1da177e4 2480
96b8e145
HV		 2481 mutex_lock(&zr->resource_lock);
2482 *input = zr->input;
2483 mutex_unlock(&zr->resource_lock);
1da177e4 2484
96b8e145
HV		 2485 return 0;
2486}
1da177e4 2487
96b8e145
HV		 2488static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2489{
2490 struct zoran_fh *fh = __fh;
2491 struct zoran *zr = fh->zr;
2492 int res;
1da177e4 2493
96b8e145
HV		 2494 mutex_lock(&zr->resource_lock);
2495 res = zoran_set_input(zr, input);
2496 if (res)
2497 goto sinput_unlock_and_return;
1da177e4 2498
96b8e145
HV		 2499 /* Make sure the changes come into effect */
2500 res = wait_grab_pending(zr);
2501sinput_unlock_and_return:
2502 mutex_unlock(&zr->resource_lock);
2503 return res;
2504}
1da177e4 2505
96b8e145
HV		 2506static int zoran_enum_output(struct file *file, void *__fh,
2507 struct v4l2_output *outp)
2508{
2509 if (outp->index != 0)
2510 return -EINVAL;
1da177e4 2511
96b8e145
HV		 2512 outp->index = 0;
2513 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2514 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
1da177e4 2515
96b8e145
HV		 2516 return 0;
2517}
1da177e4 2518
96b8e145
HV		 2519static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2520{
2521 *output = 0;
2522
2523 return 0;
2524}
1da177e4 2525
96b8e145
HV		 2526static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2527{
2528 if (output != 0)
2529 return -EINVAL;
1da177e4 2530
96b8e145
HV		 2531 return 0;
2532}
1da177e4 2533
96b8e145
HV		 2534/* cropping (sub-frame capture) */
2535static int zoran_cropcap(struct file *file, void *__fh,
2536 struct v4l2_cropcap *cropcap)
2537{
2538 struct zoran_fh *fh = __fh;
2539 struct zoran *zr = fh->zr;
2540 int type = cropcap->type, res = 0;
1da177e4 2541
96b8e145
HV		 2542 memset(cropcap, 0, sizeof(*cropcap));
2543 cropcap->type = type;
1da177e4 2544
96b8e145 2545 mutex_lock(&zr->resource_lock);
1da177e4 2546
96b8e145
HV		 2547 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2548 (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2549 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2550 dprintk(1, KERN_ERR
2551 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
1da177e4 2552 ZR_DEVNAME(zr));
96b8e145
HV		 2553 res = -EINVAL;
2554 goto cropcap_unlock_and_return;
2555 }
1da177e4 2556
96b8e145
HV		 2557 cropcap->bounds.top = cropcap->bounds.left = 0;
2558 cropcap->bounds.width = BUZ_MAX_WIDTH;
2559 cropcap->bounds.height = BUZ_MAX_HEIGHT;
2560 cropcap->defrect.top = cropcap->defrect.left = 0;
2561 cropcap->defrect.width = BUZ_MIN_WIDTH;
2562 cropcap->defrect.height = BUZ_MIN_HEIGHT;
2563cropcap_unlock_and_return:
2564 mutex_unlock(&zr->resource_lock);
2565 return res;
2566}
1da177e4 2567
96b8e145
HV		 2568static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2569{
2570 struct zoran_fh *fh = __fh;
2571 struct zoran *zr = fh->zr;
2572 int type = crop->type, res = 0;
1da177e4 2573
96b8e145
HV		 2574 memset(crop, 0, sizeof(*crop));
2575 crop->type = type;
1da177e4 2576
96b8e145 2577 mutex_lock(&zr->resource_lock);
1da177e4 2578
96b8e145
HV		 2579 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2580 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2581 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2582 dprintk(1,
2583 KERN_ERR
2584 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2585 ZR_DEVNAME(zr));
2586 res = -EINVAL;
2587 goto gcrop_unlock_and_return;
1da177e4 2588 }
1da177e4 2589
96b8e145
HV		 2590 crop->c.top = fh->jpg_settings.img_y;
2591 crop->c.left = fh->jpg_settings.img_x;
2592 crop->c.width = fh->jpg_settings.img_width;
2593 crop->c.height = fh->jpg_settings.img_height;
1da177e4 2594
96b8e145
HV		 2595gcrop_unlock_and_return:
2596 mutex_unlock(&zr->resource_lock);
1da177e4 2597
96b8e145
HV		 2598 return res;
2599}
1da177e4 2600
4f996594 2601static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *crop)
96b8e145
HV		 2602{
2603 struct zoran_fh *fh = __fh;
2604 struct zoran *zr = fh->zr;
2605 int res = 0;
2606 struct zoran_jpg_settings settings;
1da177e4 2607
96b8e145 2608 settings = fh->jpg_settings;
1da177e4 2609
96b8e145 2610 mutex_lock(&zr->resource_lock);
1da177e4 2611
1159b7f1 2612 if (fh->buffers.allocated) {
96b8e145
HV		 2613 dprintk(1, KERN_ERR
2614 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2615 ZR_DEVNAME(zr));
2616 res = -EBUSY;
2617 goto scrop_unlock_and_return;
1da177e4 2618 }
1da177e4 2619
96b8e145
HV		 2620 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2621 (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2622 fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2623 dprintk(1, KERN_ERR
2624 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2625 ZR_DEVNAME(zr));
2626 res = -EINVAL;
2627 goto scrop_unlock_and_return;
2628 }
1da177e4 2629
96b8e145
HV		 2630 /* move into a form that we understand */
2631 settings.img_x = crop->c.left;
2632 settings.img_y = crop->c.top;
2633 settings.img_width = crop->c.width;
2634 settings.img_height = crop->c.height;
1da177e4 2635
96b8e145 2636 /* check validity */
0ba514d5 2637 res = zoran_check_jpg_settings(zr, &settings, 0);
96b8e145
HV		 2638 if (res)
2639 goto scrop_unlock_and_return;
1da177e4 2640
96b8e145
HV		 2641 /* accept */
2642 fh->jpg_settings = settings;
1da177e4 2643
96b8e145
HV		 2644scrop_unlock_and_return:
2645 mutex_unlock(&zr->resource_lock);
2646 return res;
2647}
1da177e4 2648
96b8e145
HV		 2649static int zoran_g_jpegcomp(struct file *file, void *__fh,
2650 struct v4l2_jpegcompression *params)
2651{
2652 struct zoran_fh *fh = __fh;
2653 struct zoran *zr = fh->zr;
2654 memset(params, 0, sizeof(*params));
1da177e4 2655
96b8e145 2656 mutex_lock(&zr->resource_lock);
1da177e4 2657
96b8e145
HV		 2658 params->quality = fh->jpg_settings.jpg_comp.quality;
2659 params->APPn = fh->jpg_settings.jpg_comp.APPn;
2660 memcpy(params->APP_data,
2661 fh->jpg_settings.jpg_comp.APP_data,
2662 fh->jpg_settings.jpg_comp.APP_len);
2663 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2664 memcpy(params->COM_data,
2665 fh->jpg_settings.jpg_comp.COM_data,
2666 fh->jpg_settings.jpg_comp.COM_len);
2667 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2668 params->jpeg_markers =
2669 fh->jpg_settings.jpg_comp.jpeg_markers;
1da177e4 2670
96b8e145 2671 mutex_unlock(&zr->resource_lock);
1da177e4 2672
96b8e145
HV		 2673 return 0;
2674}
1da177e4 2675
96b8e145 2676static int zoran_s_jpegcomp(struct file *file, void *__fh,
d88aab53 2677 const struct v4l2_jpegcompression *params)
96b8e145
HV		 2678{
2679 struct zoran_fh *fh = __fh;
2680 struct zoran *zr = fh->zr;
2681 int res = 0;
2682 struct zoran_jpg_settings settings;
1da177e4 2683
96b8e145 2684 settings = fh->jpg_settings;
1da177e4 2685
96b8e145 2686 settings.jpg_comp = *params;
1da177e4 2687
96b8e145 2688 mutex_lock(&zr->resource_lock);
1da177e4 2689
1159b7f1 2690 if (fh->buffers.active != ZORAN_FREE) {
96b8e145
HV		 2691 dprintk(1, KERN_WARNING
2692 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2693 ZR_DEVNAME(zr));
2694 res = -EBUSY;
2695 goto sjpegc_unlock_and_return;
1da177e4 2696 }
1da177e4 2697
0ba514d5 2698 res = zoran_check_jpg_settings(zr, &settings, 0);
96b8e145
HV		 2699 if (res)
2700 goto sjpegc_unlock_and_return;
1159b7f1
TP		 2701 if (!fh->buffers.allocated)
2702 fh->buffers.buffer_size =
2703 zoran_v4l2_calc_bufsize(&fh->jpg_settings);
d88aab53 2704 fh->jpg_settings.jpg_comp = settings.jpg_comp;
96b8e145
HV		 2705sjpegc_unlock_and_return:
2706 mutex_unlock(&zr->resource_lock);
1da177e4 2707
27f79525 2708 return res;
1da177e4
LT		 2709}
2710
1da177e4
LT		 2711static unsigned int
2712zoran_poll (struct file *file,
2713 poll_table *wait)
2714{
2715 struct zoran_fh *fh = file->private_data;
2716 struct zoran *zr = fh->zr;
1da177e4 2717 int res = 0, frame;
e42af83f 2718 unsigned long flags;
1da177e4
LT		 2719
2720 /* we should check whether buffers are ready to be synced on
2721 * (w/o waits - O_NONBLOCK) here
2722 * if ready for read (sync), return POLLIN|POLLRDNORM,
2723 * if ready for write (sync), return POLLOUT|POLLWRNORM,
2724 * if error, return POLLERR,
2725 * if no buffers queued or so, return POLLNVAL
2726 */
2727
384c3689 2728 mutex_lock(&zr->resource_lock);
1da177e4
LT		 2729
2730 switch (fh->map_mode) {
2731 case ZORAN_MAP_MODE_RAW:
e42af83f
TP		 2732 poll_wait(file, &zr->v4l_capq, wait);
2733 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2734
2735 spin_lock_irqsave(&zr->spinlock, flags);
2736 dprintk(3,
2737 KERN_DEBUG
2738 "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
7e28adb2 2739 ZR_DEVNAME(zr), __func__,
1159b7f1 2740 "FAL"[fh->buffers.active], zr->v4l_sync_tail,
e42af83f
TP		 2741 "UPMD"[zr->v4l_buffers.buffer[frame].state],
2742 zr->v4l_pend_tail, zr->v4l_pend_head);
2743 /* Process is the one capturing? */
1159b7f1 2744 if (fh->buffers.active != ZORAN_FREE &&
e42af83f
TP		 2745 /* Buffer ready to DQBUF? */
2746 zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
1da177e4 2747 res = POLLIN | POLLRDNORM;
e42af83f
TP		 2748 spin_unlock_irqrestore(&zr->spinlock, flags);
2749
1da177e4
LT		 2750 break;
2751
2752 case ZORAN_MAP_MODE_JPG_REC:
2753 case ZORAN_MAP_MODE_JPG_PLAY:
e42af83f 2754 poll_wait(file, &zr->jpg_capq, wait);
1da177e4 2755 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
e42af83f
TP		 2756
2757 spin_lock_irqsave(&zr->spinlock, flags);
2758 dprintk(3,
2759 KERN_DEBUG
2760 "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
7e28adb2 2761 ZR_DEVNAME(zr), __func__,
1159b7f1 2762 "FAL"[fh->buffers.active], zr->jpg_que_tail,
e42af83f
TP		 2763 "UPMD"[zr->jpg_buffers.buffer[frame].state],
2764 zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
1159b7f1 2765 if (fh->buffers.active != ZORAN_FREE &&
e42af83f 2766 zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
1da177e4
LT		 2767 if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2768 res = POLLIN | POLLRDNORM;
2769 else
2770 res = POLLOUT | POLLWRNORM;
2771 }
e42af83f
TP		 2772 spin_unlock_irqrestore(&zr->spinlock, flags);
2773
1da177e4
LT		 2774 break;
2775
2776 default:
2777 dprintk(1,
e42af83f 2778 KERN_ERR
c61402ba
TP		 2779 "%s: %s - internal error, unknown map_mode=%d\n",
2780 ZR_DEVNAME(zr), __func__, fh->map_mode);
1da177e4 2781 res = POLLNVAL;
1da177e4
LT		 2782 }
2783
384c3689 2784 mutex_unlock(&zr->resource_lock);
1da177e4
LT		 2785
2786 return res;
2787}
2788
2789
2790/*
2791 * This maps the buffers to user space.
2792 *
2793 * Depending on the state of fh->map_mode
2794 * the V4L or the MJPEG buffers are mapped
2795 * per buffer or all together
2796 *
2797 * Note that we need to connect to some
2798 * unmap signal event to unmap the de-allocate
2799 * the buffer accordingly (zoran_vm_close())
2800 */
2801
2802static void
2803zoran_vm_open (struct vm_area_struct *vma)
2804{
2805 struct zoran_mapping *map = vma->vm_private_data;
4ad1f70e 2806 atomic_inc(&map->count);
1da177e4
LT		 2807}
2808
2809static void
2810zoran_vm_close (struct vm_area_struct *vma)
2811{
2812 struct zoran_mapping *map = vma->vm_private_data;
3b6456d2 2813 struct zoran_fh *fh = map->fh;
1da177e4
LT		 2814 struct zoran *zr = fh->zr;
2815 int i;
2816
4ad1f70e 2817 if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock))
1159b7f1 2818 return;
1da177e4 2819
1159b7f1
TP		 2820 dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2821 __func__, mode_name(fh->map_mode));
1da177e4 2822
1159b7f1
TP		 2823 for (i = 0; i < fh->buffers.num_buffers; i++) {
2824 if (fh->buffers.buffer[i].map == map)
2825 fh->buffers.buffer[i].map = NULL;
2826 }
2827 kfree(map);
1da177e4 2828
1159b7f1 2829 /* Any buffers still mapped? */
4ad1f70e
AV		 2830 for (i = 0; i < fh->buffers.num_buffers; i++) {
2831 if (fh->buffers.buffer[i].map) {
2832 mutex_unlock(&zr->resource_lock);
1159b7f1 2833 return;
4ad1f70e
AV		 2834 }
2835 }
1da177e4 2836
1159b7f1
TP		 2837 dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2838 __func__, mode_name(fh->map_mode));
1da177e4 2839
1da177e4 2840
1159b7f1
TP		 2841 if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2842 if (fh->buffers.active != ZORAN_FREE) {
2843 unsigned long flags;
1da177e4 2844
1159b7f1
TP		 2845 spin_lock_irqsave(&zr->spinlock, flags);
2846 zr36057_set_memgrab(zr, 0);
2847 zr->v4l_buffers.allocated = 0;
2848 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2849 spin_unlock_irqrestore(&zr->spinlock, flags);
2850 }
e5ee3f64 2851 v4l_fbuffer_free(fh);
1159b7f1
TP		 2852 } else {
2853 if (fh->buffers.active != ZORAN_FREE) {
e5ee3f64 2854 jpg_qbuf(fh, -1, zr->codec_mode);
1159b7f1
TP		 2855 zr->jpg_buffers.allocated = 0;
2856 zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
1da177e4 2857 }
e5ee3f64 2858 jpg_fbuffer_free(fh);
1da177e4 2859 }
1159b7f1
TP		 2860
2861 mutex_unlock(&zr->resource_lock);
1da177e4
LT		 2862}
2863
f0f37e2f 2864static const struct vm_operations_struct zoran_vm_ops = {
1da177e4
LT		 2865 .open = zoran_vm_open,
2866 .close = zoran_vm_close,
2867};
2868
2869static int
2870zoran_mmap (struct file *file,
2871 struct vm_area_struct *vma)
2872{
2873 struct zoran_fh *fh = file->private_data;
2874 struct zoran *zr = fh->zr;
2875 unsigned long size = (vma->vm_end - vma->vm_start);
2876 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2877 int i, j;
2878 unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2879 int first, last;
2880 struct zoran_mapping *map;
2881 int res = 0;
2882
2883 dprintk(3,
c61402ba
TP		 2884 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2885 ZR_DEVNAME(zr), __func__,
1159b7f1 2886 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
1da177e4
LT		 2887
2888 if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2889 !(vma->vm_flags & VM_WRITE)) {
2890 dprintk(1,
2891 KERN_ERR
c61402ba
TP		 2892 "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2893 ZR_DEVNAME(zr), __func__);
1da177e4
LT		 2894 return -EINVAL;
2895 }
2896
1159b7f1 2897 mutex_lock(&zr->resource_lock);
1da177e4 2898
1159b7f1
TP		 2899 if (!fh->buffers.allocated) {
2900 dprintk(1,
2901 KERN_ERR
c61402ba
TP		 2902 "%s: %s(%s) - buffers not yet allocated\n",
2903 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
1159b7f1
TP		 2904 res = -ENOMEM;
2905 goto mmap_unlock_and_return;
2906 }
1da177e4 2907
1159b7f1
TP		 2908 first = offset / fh->buffers.buffer_size;
2909 last = first - 1 + size / fh->buffers.buffer_size;
2910 if (offset % fh->buffers.buffer_size != 0 ||
2911 size % fh->buffers.buffer_size != 0 || first < 0 ||
2912 last < 0 || first >= fh->buffers.num_buffers ||
2913 last >= fh->buffers.buffer_size) {
2914 dprintk(1,
2915 KERN_ERR
c61402ba
TP		 2916 "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2917 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
1159b7f1
TP		 2918 fh->buffers.buffer_size,
2919 fh->buffers.num_buffers);
2920 res = -EINVAL;
2921 goto mmap_unlock_and_return;
2922 }
1da177e4 2923
1159b7f1
TP		 2924 /* Check if any buffers are already mapped */
2925 for (i = first; i <= last; i++) {
2926 if (fh->buffers.buffer[i].map) {
1da177e4
LT		 2927 dprintk(1,
2928 KERN_ERR
c61402ba
TP		 2929 "%s: %s(%s) - buffer %d already mapped\n",
2930 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
1159b7f1
TP		 2931 res = -EBUSY;
2932 goto mmap_unlock_and_return;
1da177e4 2933 }
1159b7f1 2934 }
1da177e4 2935
1159b7f1
TP		 2936 /* map these buffers */
2937 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2938 if (!map) {
2939 res = -ENOMEM;
2940 goto mmap_unlock_and_return;
2941 }
3b6456d2 2942 map->fh = fh;
4ad1f70e 2943 atomic_set(&map->count, 1);
1159b7f1
TP		 2944
2945 vma->vm_ops = &zoran_vm_ops;
2946 vma->vm_flags |= VM_DONTEXPAND;
2947 vma->vm_private_data = map;
2948
2949 if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
1da177e4 2950 for (i = first; i <= last; i++) {
1159b7f1
TP		 2951 todo = size;
2952 if (todo > fh->buffers.buffer_size)
2953 todo = fh->buffers.buffer_size;
2954 page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2955 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2956 todo, PAGE_SHARED)) {
1da177e4
LT		 2957 dprintk(1,
2958 KERN_ERR
c61402ba
TP		 2959 "%s: %s(V4L) - remap_pfn_range failed\n",
2960 ZR_DEVNAME(zr), __func__);
1159b7f1
TP		 2961 res = -EAGAIN;
2962 goto mmap_unlock_and_return;
1da177e4 2963 }
1159b7f1
TP		 2964 size -= todo;
2965 start += todo;
2966 fh->buffers.buffer[i].map = map;
2967 if (size == 0)
2968 break;
1da177e4 2969 }
1159b7f1 2970 } else {
1da177e4
LT		 2971 for (i = first; i <= last; i++) {
2972 for (j = 0;
1159b7f1 2973 j < fh->buffers.buffer_size / PAGE_SIZE;
1da177e4
LT		 2974 j++) {
2975 fraglen =
1159b7f1 2976 (le32_to_cpu(fh->buffers.buffer[i].jpg.
1da177e4
LT		 2977 frag_tab[2 * j + 1]) & ~1) << 1;
2978 todo = size;
2979 if (todo > fraglen)
2980 todo = fraglen;
2981 pos =
1159b7f1
TP		 2982 le32_to_cpu(fh->buffers.
2983 buffer[i].jpg.frag_tab[2 * j]);
1da177e4
LT		 2984 /* should just be pos on i386 */
2985 page = virt_to_phys(bus_to_virt(pos))
2986 >> PAGE_SHIFT;
2987 if (remap_pfn_range(vma, start, page,
2988 todo, PAGE_SHARED)) {
2989 dprintk(1,
2990 KERN_ERR
c61402ba
TP		 2991 "%s: %s(V4L) - remap_pfn_range failed\n",
2992 ZR_DEVNAME(zr), __func__);
1da177e4 2993 res = -EAGAIN;
1159b7f1 2994 goto mmap_unlock_and_return;
1da177e4
LT		 2995 }
2996 size -= todo;
2997 start += todo;
2998 if (size == 0)
2999 break;
1159b7f1 3000 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
1da177e4
LT		 3001 frag_tab[2 * j + 1]) & 1)
3002 break; /* was last fragment */
3003 }
1159b7f1 3004 fh->buffers.buffer[i].map = map;
1da177e4
LT		 3005 if (size == 0)
3006 break;
3007
3008 }
1da177e4
LT		 3009 }
3010
1159b7f1
TP		 3011mmap_unlock_and_return:
3012 mutex_unlock(&zr->resource_lock);
3013
46a7a3cc 3014 return res;
1da177e4
LT		 3015}
3016
96b8e145
HV		 3017static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
3018 .vidioc_querycap = zoran_querycap,
3019 .vidioc_cropcap = zoran_cropcap,
3020 .vidioc_s_crop = zoran_s_crop,
3021 .vidioc_g_crop = zoran_g_crop,
3022 .vidioc_enum_input = zoran_enum_input,
3023 .vidioc_g_input = zoran_g_input,
3024 .vidioc_s_input = zoran_s_input,
3025 .vidioc_enum_output = zoran_enum_output,
3026 .vidioc_g_output = zoran_g_output,
3027 .vidioc_s_output = zoran_s_output,
3028 .vidioc_g_fbuf = zoran_g_fbuf,
3029 .vidioc_s_fbuf = zoran_s_fbuf,
3030 .vidioc_g_std = zoran_g_std,
3031 .vidioc_s_std = zoran_s_std,
3032 .vidioc_g_jpegcomp = zoran_g_jpegcomp,
3033 .vidioc_s_jpegcomp = zoran_s_jpegcomp,
3034 .vidioc_overlay = zoran_overlay,
3035 .vidioc_reqbufs = zoran_reqbufs,
3036 .vidioc_querybuf = zoran_querybuf,
3037 .vidioc_qbuf = zoran_qbuf,
3038 .vidioc_dqbuf = zoran_dqbuf,
3039 .vidioc_streamon = zoran_streamon,
3040 .vidioc_streamoff = zoran_streamoff,
3041 .vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap,
3042 .vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out,
3043 .vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay,
3044 .vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap,
3045 .vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out,
3046 .vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay,
3047 .vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap,
3048 .vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out,
3049 .vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay,
3050 .vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap,
3051 .vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out,
3052 .vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay,
3053 .vidioc_queryctrl = zoran_queryctrl,
3054 .vidioc_s_ctrl = zoran_s_ctrl,
3055 .vidioc_g_ctrl = zoran_g_ctrl,
96b8e145
HV		 3056};
3057
0edf2e5e
AB		 3058/* please use zr->resource_lock consistently and kill this wrapper */
3059static long zoran_ioctl(struct file *file, unsigned int cmd,
3060 unsigned long arg)
3061{
3062 struct zoran_fh *fh = file->private_data;
3063 struct zoran *zr = fh->zr;
3064 int ret;
3065
3066 mutex_lock(&zr->other_lock);
3067 ret = video_ioctl2(file, cmd, arg);
3068 mutex_unlock(&zr->other_lock);
3069
3070 return ret;
3071}
3072
bec43661 3073static const struct v4l2_file_operations zoran_fops = {
1da177e4
LT		 3074 .owner = THIS_MODULE,
3075 .open = zoran_open,
3076 .release = zoran_close,
0edf2e5e 3077 .unlocked_ioctl = zoran_ioctl,
1da177e4
LT		 3078 .read = zoran_read,
3079 .write = zoran_write,
3080 .mmap = zoran_mmap,
3081 .poll = zoran_poll,
3082};
3083
4c62e976 3084struct video_device zoran_template = {
1da177e4 3085 .name = ZORAN_NAME,
1da177e4 3086 .fops = &zoran_fops,
96b8e145 3087 .ioctl_ops = &zoran_ioctl_ops,
1da177e4 3088 .release = &zoran_vdev_release,
96b8e145 3089 .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
1da177e4
LT		 3090};
3091
Empty description
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