Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Zoran zr36057/zr36067 PCI controller driver, for the |
| 3 | * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux |
| 4 | * Media Labs LML33/LML33R10. |
| 5 | * |
| 6 | * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> |
| 7 | * |
| 8 | * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> |
| 9 | * |
| 10 | * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> |
| 11 | * |
| 12 | * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> |
| 13 | * |
| 14 | * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> |
| 15 | * |
| 16 | * Based on |
| 17 | * |
| 18 | * Miro DC10 driver |
| 19 | * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> |
| 20 | * |
| 21 | * Iomega Buz driver version 1.0 |
| 22 | * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> |
| 23 | * |
| 24 | * buz.0.0.3 |
| 25 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> |
| 26 | * |
| 27 | * bttv - Bt848 frame grabber driver |
| 28 | * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) |
| 29 | * & Marcus Metzler (mocm@thp.uni-koeln.de) |
| 30 | * |
| 31 | * |
| 32 | * This program is free software; you can redistribute it and/or modify |
| 33 | * it under the terms of the GNU General Public License as published by |
| 34 | * the Free Software Foundation; either version 2 of the License, or |
| 35 | * (at your option) any later version. |
| 36 | * |
| 37 | * This program is distributed in the hope that it will be useful, |
| 38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 40 | * GNU General Public License for more details. |
| 41 | * |
| 42 | * You should have received a copy of the GNU General Public License |
| 43 | * along with this program; if not, write to the Free Software |
| 44 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 45 | */ |
| 46 | |
| 47 | #include <linux/config.h> |
| 48 | #include <linux/version.h> |
| 49 | #include <linux/init.h> |
| 50 | #include <linux/module.h> |
| 51 | #include <linux/delay.h> |
| 52 | #include <linux/slab.h> |
| 53 | #include <linux/pci.h> |
| 54 | #include <linux/vmalloc.h> |
| 55 | #include <linux/wait.h> |
| 56 | #include <linux/byteorder/generic.h> |
| 57 | |
| 58 | #include <linux/interrupt.h> |
| 59 | #include <linux/i2c.h> |
| 60 | #include <linux/i2c-algo-bit.h> |
| 61 | |
| 62 | #include <linux/spinlock.h> |
| 63 | #define MAP_NR(x) virt_to_page(x) |
| 64 | #define ZORAN_HARDWARE VID_HARDWARE_ZR36067 |
| 65 | #define ZORAN_VID_TYPE ( \ |
| 66 | VID_TYPE_CAPTURE | \ |
| 67 | VID_TYPE_OVERLAY | \ |
| 68 | VID_TYPE_CLIPPING | \ |
| 69 | VID_TYPE_FRAMERAM | \ |
| 70 | VID_TYPE_SCALES | \ |
| 71 | VID_TYPE_MJPEG_DECODER | \ |
| 72 | VID_TYPE_MJPEG_ENCODER \ |
| 73 | ) |
| 74 | |
| 75 | #include <linux/videodev.h> |
| 76 | #include "videocodec.h" |
| 77 | |
| 78 | #include <asm/io.h> |
| 79 | #include <asm/uaccess.h> |
| 80 | #include <linux/proc_fs.h> |
| 81 | |
| 82 | #include <linux/video_decoder.h> |
| 83 | #include <linux/video_encoder.h> |
| 84 | #include "zoran.h" |
| 85 | #include "zoran_device.h" |
| 86 | #include "zoran_card.h" |
| 87 | |
| 88 | #ifdef HAVE_V4L2 |
| 89 | /* we declare some card type definitions here, they mean |
| 90 | * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */ |
| 91 | #define ZORAN_V4L2_VID_FLAGS ( \ |
| 92 | V4L2_CAP_STREAMING |\ |
| 93 | V4L2_CAP_VIDEO_CAPTURE |\ |
| 94 | V4L2_CAP_VIDEO_OUTPUT |\ |
| 95 | V4L2_CAP_VIDEO_OVERLAY \ |
| 96 | ) |
| 97 | #endif |
| 98 | |
| 99 | #include <asm/byteorder.h> |
| 100 | |
| 101 | const struct zoran_format zoran_formats[] = { |
| 102 | { |
| 103 | .name = "15-bit RGB", |
| 104 | .palette = VIDEO_PALETTE_RGB555, |
| 105 | #ifdef HAVE_V4L2 |
| 106 | #ifdef __LITTLE_ENDIAN |
| 107 | .fourcc = V4L2_PIX_FMT_RGB555, |
| 108 | #else |
| 109 | .fourcc = V4L2_PIX_FMT_RGB555X, |
| 110 | #endif |
| 111 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 112 | #endif |
| 113 | .depth = 15, |
| 114 | .flags = ZORAN_FORMAT_CAPTURE | |
| 115 | ZORAN_FORMAT_OVERLAY, |
| 116 | }, { |
| 117 | .name = "16-bit RGB", |
| 118 | .palette = VIDEO_PALETTE_RGB565, |
| 119 | #ifdef HAVE_V4L2 |
| 120 | #ifdef __LITTLE_ENDIAN |
| 121 | .fourcc = V4L2_PIX_FMT_RGB565, |
| 122 | #else |
| 123 | .fourcc = V4L2_PIX_FMT_RGB565X, |
| 124 | #endif |
| 125 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 126 | #endif |
| 127 | .depth = 16, |
| 128 | .flags = ZORAN_FORMAT_CAPTURE | |
| 129 | ZORAN_FORMAT_OVERLAY, |
| 130 | }, { |
| 131 | .name = "24-bit RGB", |
| 132 | .palette = VIDEO_PALETTE_RGB24, |
| 133 | #ifdef HAVE_V4L2 |
| 134 | #ifdef __LITTLE_ENDIAN |
| 135 | .fourcc = V4L2_PIX_FMT_BGR24, |
| 136 | #else |
| 137 | .fourcc = V4L2_PIX_FMT_RGB24, |
| 138 | #endif |
| 139 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 140 | #endif |
| 141 | .depth = 24, |
| 142 | .flags = ZORAN_FORMAT_CAPTURE | |
| 143 | ZORAN_FORMAT_OVERLAY, |
| 144 | }, { |
| 145 | .name = "32-bit RGB", |
| 146 | .palette = VIDEO_PALETTE_RGB32, |
| 147 | #ifdef HAVE_V4L2 |
| 148 | #ifdef __LITTLE_ENDIAN |
| 149 | .fourcc = V4L2_PIX_FMT_BGR32, |
| 150 | #else |
| 151 | .fourcc = V4L2_PIX_FMT_RGB32, |
| 152 | #endif |
| 153 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 154 | #endif |
| 155 | .depth = 32, |
| 156 | .flags = ZORAN_FORMAT_CAPTURE | |
| 157 | ZORAN_FORMAT_OVERLAY, |
| 158 | }, { |
| 159 | .name = "4:2:2, packed, YUYV", |
| 160 | .palette = VIDEO_PALETTE_YUV422, |
| 161 | #ifdef HAVE_V4L2 |
| 162 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 163 | .colorspace = V4L2_COLORSPACE_SMPTE170M, |
| 164 | #endif |
| 165 | .depth = 16, |
| 166 | .flags = ZORAN_FORMAT_CAPTURE | |
| 167 | ZORAN_FORMAT_OVERLAY, |
| 168 | }, { |
| 169 | .name = "Hardware-encoded Motion-JPEG", |
| 170 | .palette = -1, |
| 171 | #ifdef HAVE_V4L2 |
| 172 | .fourcc = V4L2_PIX_FMT_MJPEG, |
| 173 | .colorspace = V4L2_COLORSPACE_SMPTE170M, |
| 174 | #endif |
| 175 | .depth = 0, |
| 176 | .flags = ZORAN_FORMAT_CAPTURE | |
| 177 | ZORAN_FORMAT_PLAYBACK | |
| 178 | ZORAN_FORMAT_COMPRESSED, |
| 179 | } |
| 180 | }; |
| 181 | static const int zoran_num_formats = |
| 182 | (sizeof(zoran_formats) / sizeof(struct zoran_format)); |
| 183 | |
| 184 | // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined |
| 185 | #if !defined(CONFIG_BIGPHYS_AREA) |
| 186 | //#undef CONFIG_BIGPHYS_AREA |
| 187 | #define BUZ_USE_HIMEM |
| 188 | #endif |
| 189 | |
| 190 | #if defined(CONFIG_BIGPHYS_AREA) |
| 191 | # include <linux/bigphysarea.h> |
| 192 | #endif |
| 193 | |
| 194 | extern int *zr_debug; |
| 195 | |
| 196 | #define dprintk(num, format, args...) \ |
| 197 | do { \ |
| 198 | if (*zr_debug >= num) \ |
| 199 | printk(format, ##args); \ |
| 200 | } while (0) |
| 201 | |
| 202 | extern int v4l_nbufs; |
| 203 | extern int v4l_bufsize; |
| 204 | extern int jpg_nbufs; |
| 205 | extern int jpg_bufsize; |
| 206 | extern int pass_through; |
| 207 | |
| 208 | static int lock_norm = 0; /* 1=Don't change TV standard (norm) */ |
| 209 | module_param(lock_norm, int, 0); |
| 210 | MODULE_PARM_DESC(lock_norm, "Users can't change norm"); |
| 211 | |
| 212 | #ifdef HAVE_V4L2 |
| 213 | /* small helper function for calculating buffersizes for v4l2 |
| 214 | * we calculate the nearest higher power-of-two, which |
| 215 | * will be the recommended buffersize */ |
| 216 | static __u32 |
| 217 | zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) |
| 218 | { |
| 219 | __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; |
| 220 | __u32 num = (1024 * 512) / (div); |
| 221 | __u32 result = 2; |
| 222 | |
| 223 | num--; |
| 224 | while (num) { |
| 225 | num >>= 1; |
| 226 | result <<= 1; |
| 227 | } |
| 228 | |
| 229 | if (result > jpg_bufsize) |
| 230 | return jpg_bufsize; |
| 231 | if (result < 8192) |
| 232 | return 8192; |
| 233 | return result; |
| 234 | } |
| 235 | #endif |
| 236 | |
| 237 | /* forward references */ |
| 238 | static void v4l_fbuffer_free(struct file *file); |
| 239 | static void jpg_fbuffer_free(struct file *file); |
| 240 | |
| 241 | /* |
| 242 | * Allocate the V4L grab buffers |
| 243 | * |
| 244 | * These have to be pysically contiguous. |
| 245 | * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc |
| 246 | * else we try to allocate them with bigphysarea_alloc_pages |
| 247 | * if the bigphysarea patch is present in the kernel, |
| 248 | * else we try to use high memory (if the user has bootet |
| 249 | * Linux with the necessary memory left over). |
| 250 | */ |
| 251 | |
| 252 | #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) |
| 253 | static unsigned long |
| 254 | get_high_mem (unsigned long size) |
| 255 | { |
| 256 | /* |
| 257 | * Check if there is usable memory at the end of Linux memory |
| 258 | * of at least size. Return the physical address of this memory, |
| 259 | * return 0 on failure. |
| 260 | * |
| 261 | * The idea is from Alexandro Rubini's book "Linux device drivers". |
| 262 | * The driver from him which is downloadable from O'Reilly's |
| 263 | * web site misses the "virt_to_phys(high_memory)" part |
| 264 | * (and therefore doesn't work at all - at least with 2.2.x kernels). |
| 265 | * |
| 266 | * It should be unnecessary to mention that THIS IS DANGEROUS, |
| 267 | * if more than one driver at a time has the idea to use this memory!!!! |
| 268 | */ |
| 269 | |
| 270 | volatile unsigned char __iomem *mem; |
| 271 | unsigned char c; |
| 272 | unsigned long hi_mem_ph; |
| 273 | unsigned long i; |
| 274 | |
| 275 | /* Map the high memory to user space */ |
| 276 | |
| 277 | hi_mem_ph = virt_to_phys(high_memory); |
| 278 | |
| 279 | mem = ioremap(hi_mem_ph, size); |
| 280 | if (!mem) { |
| 281 | dprintk(1, |
| 282 | KERN_ERR "%s: get_high_mem() - ioremap failed\n", |
| 283 | ZORAN_NAME); |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | for (i = 0; i < size; i++) { |
| 288 | /* Check if it is memory */ |
| 289 | c = i & 0xff; |
| 290 | writeb(c, mem + i); |
| 291 | if (readb(mem + i) != c) |
| 292 | break; |
| 293 | c = 255 - c; |
| 294 | writeb(c, mem + i); |
| 295 | if (readb(mem + i) != c) |
| 296 | break; |
| 297 | writeb(0, mem + i); /* zero out memory */ |
| 298 | |
| 299 | /* give the kernel air to breath */ |
| 300 | if ((i & 0x3ffff) == 0x3ffff) |
| 301 | schedule(); |
| 302 | } |
| 303 | |
| 304 | iounmap(mem); |
| 305 | |
| 306 | if (i != size) { |
| 307 | dprintk(1, |
| 308 | KERN_ERR |
| 309 | "%s: get_high_mem() - requested %lu, avail %lu\n", |
| 310 | ZORAN_NAME, size, i); |
| 311 | return 0; |
| 312 | } |
| 313 | |
| 314 | return hi_mem_ph; |
| 315 | } |
| 316 | #endif |
| 317 | |
| 318 | static int |
| 319 | v4l_fbuffer_alloc (struct file *file) |
| 320 | { |
| 321 | struct zoran_fh *fh = file->private_data; |
| 322 | struct zoran *zr = fh->zr; |
| 323 | int i, off; |
| 324 | unsigned char *mem; |
| 325 | #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) |
| 326 | unsigned long pmem = 0; |
| 327 | #endif |
| 328 | |
| 329 | /* we might have old buffers lying around... */ |
| 330 | if (fh->v4l_buffers.ready_to_be_freed) { |
| 331 | v4l_fbuffer_free(file); |
| 332 | } |
| 333 | |
| 334 | for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| 335 | if (fh->v4l_buffers.buffer[i].fbuffer) |
| 336 | dprintk(2, |
| 337 | KERN_WARNING |
| 338 | "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n", |
| 339 | ZR_DEVNAME(zr), i); |
| 340 | |
| 341 | //udelay(20); |
| 342 | if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { |
| 343 | /* Use kmalloc */ |
| 344 | |
| 345 | mem = |
| 346 | (unsigned char *) kmalloc(fh->v4l_buffers. |
| 347 | buffer_size, |
| 348 | GFP_KERNEL); |
| 349 | if (mem == 0) { |
| 350 | dprintk(1, |
| 351 | KERN_ERR |
| 352 | "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n", |
| 353 | ZR_DEVNAME(zr), i); |
| 354 | v4l_fbuffer_free(file); |
| 355 | return -ENOBUFS; |
| 356 | } |
| 357 | fh->v4l_buffers.buffer[i].fbuffer = mem; |
| 358 | fh->v4l_buffers.buffer[i].fbuffer_phys = |
| 359 | virt_to_phys(mem); |
| 360 | fh->v4l_buffers.buffer[i].fbuffer_bus = |
| 361 | virt_to_bus(mem); |
| 362 | for (off = 0; off < fh->v4l_buffers.buffer_size; |
| 363 | off += PAGE_SIZE) |
| 364 | SetPageReserved(MAP_NR(mem + off)); |
| 365 | dprintk(4, |
| 366 | KERN_INFO |
| 367 | "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n", |
| 368 | ZR_DEVNAME(zr), i, (unsigned long) mem, |
| 369 | virt_to_bus(mem)); |
| 370 | } else { |
| 371 | #if defined(CONFIG_BIGPHYS_AREA) |
| 372 | /* Use bigphysarea_alloc_pages */ |
| 373 | |
| 374 | int n = |
| 375 | (fh->v4l_buffers.buffer_size + PAGE_SIZE - |
| 376 | 1) / PAGE_SIZE; |
| 377 | |
| 378 | mem = |
| 379 | (unsigned char *) bigphysarea_alloc_pages(n, 0, |
| 380 | GFP_KERNEL); |
| 381 | if (mem == 0) { |
| 382 | dprintk(1, |
| 383 | KERN_ERR |
| 384 | "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n", |
| 385 | ZR_DEVNAME(zr), i); |
| 386 | v4l_fbuffer_free(file); |
| 387 | return -ENOBUFS; |
| 388 | } |
| 389 | fh->v4l_buffers.buffer[i].fbuffer = mem; |
| 390 | fh->v4l_buffers.buffer[i].fbuffer_phys = |
| 391 | virt_to_phys(mem); |
| 392 | fh->v4l_buffers.buffer[i].fbuffer_bus = |
| 393 | virt_to_bus(mem); |
| 394 | dprintk(4, |
| 395 | KERN_INFO |
| 396 | "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n", |
| 397 | ZR_DEVNAME(zr), i, (unsigned) mem, |
| 398 | (unsigned) virt_to_bus(mem)); |
| 399 | |
| 400 | /* Zero out the allocated memory */ |
| 401 | memset(fh->v4l_buffers.buffer[i].fbuffer, 0, |
| 402 | fh->v4l_buffers.buffer_size); |
| 403 | #elif defined(BUZ_USE_HIMEM) |
| 404 | |
| 405 | /* Use high memory which has been left at boot time */ |
| 406 | |
| 407 | /* Ok., Ok. this is an evil hack - we make |
| 408 | * the assumption that physical addresses are |
| 409 | * the same as bus addresses (true at least |
| 410 | * for Intel processors). The whole method of |
| 411 | * obtaining and using this memory is not very |
| 412 | * nice - but I hope it saves some poor users |
| 413 | * from kernel hacking, which might have even |
| 414 | * more evil results */ |
| 415 | |
| 416 | if (i == 0) { |
| 417 | int size = |
| 418 | fh->v4l_buffers.num_buffers * |
| 419 | fh->v4l_buffers.buffer_size; |
| 420 | |
| 421 | pmem = get_high_mem(size); |
| 422 | if (pmem == 0) { |
| 423 | dprintk(1, |
| 424 | KERN_ERR |
| 425 | "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n", |
| 426 | ZR_DEVNAME(zr), size >> 10); |
| 427 | return -ENOBUFS; |
| 428 | } |
| 429 | fh->v4l_buffers.buffer[0].fbuffer = NULL; |
| 430 | fh->v4l_buffers.buffer[0].fbuffer_phys = pmem; |
| 431 | fh->v4l_buffers.buffer[0].fbuffer_bus = pmem; |
| 432 | dprintk(4, |
| 433 | KERN_INFO |
| 434 | "%s: v4l_fbuffer_alloc() - using %d KB high memory\n", |
| 435 | ZR_DEVNAME(zr), size >> 10); |
| 436 | } else { |
| 437 | fh->v4l_buffers.buffer[i].fbuffer = NULL; |
| 438 | fh->v4l_buffers.buffer[i].fbuffer_phys = |
| 439 | pmem + i * fh->v4l_buffers.buffer_size; |
| 440 | fh->v4l_buffers.buffer[i].fbuffer_bus = |
| 441 | pmem + i * fh->v4l_buffers.buffer_size; |
| 442 | } |
| 443 | #else |
| 444 | /* No bigphysarea present, usage of high memory disabled, |
| 445 | * but user wants buffers of more than MAX_KMALLOC_MEM */ |
| 446 | dprintk(1, |
| 447 | KERN_ERR |
| 448 | "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n", |
| 449 | ZR_DEVNAME(zr)); |
| 450 | dprintk(1, |
| 451 | KERN_ERR |
| 452 | "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n", |
| 453 | ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers, |
| 454 | fh->v4l_buffers.buffer_size >> 10); |
| 455 | return -ENOBUFS; |
| 456 | #endif |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | fh->v4l_buffers.allocated = 1; |
| 461 | |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | /* free the V4L grab buffers */ |
| 466 | static void |
| 467 | v4l_fbuffer_free (struct file *file) |
| 468 | { |
| 469 | struct zoran_fh *fh = file->private_data; |
| 470 | struct zoran *zr = fh->zr; |
| 471 | int i, off; |
| 472 | unsigned char *mem; |
| 473 | |
| 474 | dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr)); |
| 475 | |
| 476 | for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| 477 | if (!fh->v4l_buffers.buffer[i].fbuffer) |
| 478 | continue; |
| 479 | |
| 480 | if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { |
| 481 | mem = fh->v4l_buffers.buffer[i].fbuffer; |
| 482 | for (off = 0; off < fh->v4l_buffers.buffer_size; |
| 483 | off += PAGE_SIZE) |
| 484 | ClearPageReserved(MAP_NR(mem + off)); |
| 485 | kfree((void *) fh->v4l_buffers.buffer[i].fbuffer); |
| 486 | } |
| 487 | #if defined(CONFIG_BIGPHYS_AREA) |
| 488 | else |
| 489 | bigphysarea_free_pages((void *) fh->v4l_buffers. |
| 490 | buffer[i].fbuffer); |
| 491 | #endif |
| 492 | fh->v4l_buffers.buffer[i].fbuffer = NULL; |
| 493 | } |
| 494 | |
| 495 | fh->v4l_buffers.allocated = 0; |
| 496 | fh->v4l_buffers.ready_to_be_freed = 0; |
| 497 | } |
| 498 | |
| 499 | /* |
| 500 | * Allocate the MJPEG grab buffers. |
| 501 | * |
| 502 | * If the requested buffer size is smaller than MAX_KMALLOC_MEM, |
| 503 | * kmalloc is used to request a physically contiguous area, |
| 504 | * else we allocate the memory in framgents with get_zeroed_page. |
| 505 | * |
| 506 | * If a Natoma chipset is present and this is a revision 1 zr36057, |
| 507 | * each MJPEG buffer needs to be physically contiguous. |
| 508 | * (RJ: This statement is from Dave Perks' original driver, |
| 509 | * I could never check it because I have a zr36067) |
| 510 | * The driver cares about this because it reduces the buffer |
| 511 | * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation). |
| 512 | * |
| 513 | * RJ: The contents grab buffers needs never be accessed in the driver. |
| 514 | * Therefore there is no need to allocate them with vmalloc in order |
| 515 | * to get a contiguous virtual memory space. |
| 516 | * I don't understand why many other drivers first allocate them with |
| 517 | * vmalloc (which uses internally also get_zeroed_page, but delivers you |
| 518 | * virtual addresses) and then again have to make a lot of efforts |
| 519 | * to get the physical address. |
| 520 | * |
| 521 | * Ben Capper: |
| 522 | * On big-endian architectures (such as ppc) some extra steps |
| 523 | * are needed. When reading and writing to the stat_com array |
| 524 | * and fragment buffers, the device expects to see little- |
| 525 | * endian values. The use of cpu_to_le32() and le32_to_cpu() |
| 526 | * in this function (and one or two others in zoran_device.c) |
| 527 | * ensure that these values are always stored in little-endian |
| 528 | * form, regardless of architecture. The zr36057 does Very Bad |
| 529 | * Things on big endian architectures if the stat_com array |
| 530 | * and fragment buffers are not little-endian. |
| 531 | */ |
| 532 | |
| 533 | static int |
| 534 | jpg_fbuffer_alloc (struct file *file) |
| 535 | { |
| 536 | struct zoran_fh *fh = file->private_data; |
| 537 | struct zoran *zr = fh->zr; |
| 538 | int i, j, off; |
| 539 | unsigned long mem; |
| 540 | |
| 541 | /* we might have old buffers lying around */ |
| 542 | if (fh->jpg_buffers.ready_to_be_freed) { |
| 543 | jpg_fbuffer_free(file); |
| 544 | } |
| 545 | |
| 546 | for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| 547 | if (fh->jpg_buffers.buffer[i].frag_tab) |
| 548 | dprintk(2, |
| 549 | KERN_WARNING |
| 550 | "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n", |
| 551 | ZR_DEVNAME(zr), i); |
| 552 | |
| 553 | /* Allocate fragment table for this buffer */ |
| 554 | |
| 555 | mem = get_zeroed_page(GFP_KERNEL); |
| 556 | if (mem == 0) { |
| 557 | dprintk(1, |
| 558 | KERN_ERR |
| 559 | "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n", |
| 560 | ZR_DEVNAME(zr), i); |
| 561 | jpg_fbuffer_free(file); |
| 562 | return -ENOBUFS; |
| 563 | } |
| 564 | memset((void *) mem, 0, PAGE_SIZE); |
| 565 | fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem; |
| 566 | fh->jpg_buffers.buffer[i].frag_tab_bus = |
| 567 | virt_to_bus((void *) mem); |
| 568 | |
| 569 | //if (alloc_contig) { |
| 570 | if (fh->jpg_buffers.need_contiguous) { |
| 571 | mem = |
| 572 | (unsigned long) kmalloc(fh->jpg_buffers. |
| 573 | buffer_size, |
| 574 | GFP_KERNEL); |
| 575 | if (mem == 0) { |
| 576 | dprintk(1, |
| 577 | KERN_ERR |
| 578 | "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n", |
| 579 | ZR_DEVNAME(zr), i); |
| 580 | jpg_fbuffer_free(file); |
| 581 | return -ENOBUFS; |
| 582 | } |
| 583 | fh->jpg_buffers.buffer[i].frag_tab[0] = |
| 584 | cpu_to_le32(virt_to_bus((void *) mem)); |
| 585 | fh->jpg_buffers.buffer[i].frag_tab[1] = |
| 586 | cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1); |
| 587 | for (off = 0; off < fh->jpg_buffers.buffer_size; |
| 588 | off += PAGE_SIZE) |
| 589 | SetPageReserved(MAP_NR(mem + off)); |
| 590 | } else { |
| 591 | /* jpg_bufsize is allreay page aligned */ |
| 592 | for (j = 0; |
| 593 | j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| 594 | j++) { |
| 595 | mem = get_zeroed_page(GFP_KERNEL); |
| 596 | if (mem == 0) { |
| 597 | dprintk(1, |
| 598 | KERN_ERR |
| 599 | "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n", |
| 600 | ZR_DEVNAME(zr), i); |
| 601 | jpg_fbuffer_free(file); |
| 602 | return -ENOBUFS; |
| 603 | } |
| 604 | |
| 605 | fh->jpg_buffers.buffer[i].frag_tab[2 * j] = |
| 606 | cpu_to_le32(virt_to_bus((void *) mem)); |
| 607 | fh->jpg_buffers.buffer[i].frag_tab[2 * j + |
| 608 | 1] = |
| 609 | cpu_to_le32((PAGE_SIZE / 4) << 1); |
| 610 | SetPageReserved(MAP_NR(mem)); |
| 611 | } |
| 612 | |
| 613 | fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1); |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | dprintk(4, |
| 618 | KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n", |
| 619 | ZR_DEVNAME(zr), |
| 620 | (fh->jpg_buffers.num_buffers * |
| 621 | fh->jpg_buffers.buffer_size) >> 10); |
| 622 | |
| 623 | fh->jpg_buffers.allocated = 1; |
| 624 | |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | /* free the MJPEG grab buffers */ |
| 629 | static void |
| 630 | jpg_fbuffer_free (struct file *file) |
| 631 | { |
| 632 | struct zoran_fh *fh = file->private_data; |
| 633 | struct zoran *zr = fh->zr; |
| 634 | int i, j, off; |
| 635 | unsigned char *mem; |
| 636 | |
| 637 | dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr)); |
| 638 | |
| 639 | for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| 640 | if (!fh->jpg_buffers.buffer[i].frag_tab) |
| 641 | continue; |
| 642 | |
| 643 | //if (alloc_contig) { |
| 644 | if (fh->jpg_buffers.need_contiguous) { |
| 645 | if (fh->jpg_buffers.buffer[i].frag_tab[0]) { |
| 646 | mem = (unsigned char *) bus_to_virt(le32_to_cpu( |
| 647 | fh->jpg_buffers.buffer[i].frag_tab[0])); |
| 648 | for (off = 0; |
| 649 | off < fh->jpg_buffers.buffer_size; |
| 650 | off += PAGE_SIZE) |
| 651 | ClearPageReserved(MAP_NR |
| 652 | (mem + off)); |
Jesper Juhl | f9101210 | 2005-09-10 00:26:54 -0700 | [diff] [blame] | 653 | kfree(mem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | fh->jpg_buffers.buffer[i].frag_tab[0] = 0; |
| 655 | fh->jpg_buffers.buffer[i].frag_tab[1] = 0; |
| 656 | } |
| 657 | } else { |
| 658 | for (j = 0; |
| 659 | j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| 660 | j++) { |
| 661 | if (!fh->jpg_buffers.buffer[i]. |
| 662 | frag_tab[2 * j]) |
| 663 | break; |
| 664 | ClearPageReserved(MAP_NR |
| 665 | (bus_to_virt |
| 666 | (le32_to_cpu |
| 667 | (fh->jpg_buffers. |
| 668 | buffer[i].frag_tab[2 * |
| 669 | j])))); |
| 670 | free_page((unsigned long) |
| 671 | bus_to_virt |
| 672 | (le32_to_cpu |
| 673 | (fh->jpg_buffers. |
| 674 | buffer[i]. |
| 675 | frag_tab[2 * j]))); |
| 676 | fh->jpg_buffers.buffer[i].frag_tab[2 * j] = |
| 677 | 0; |
| 678 | fh->jpg_buffers.buffer[i].frag_tab[2 * j + |
| 679 | 1] = 0; |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | free_page((unsigned long) fh->jpg_buffers.buffer[i]. |
| 684 | frag_tab); |
| 685 | fh->jpg_buffers.buffer[i].frag_tab = NULL; |
| 686 | } |
| 687 | |
| 688 | fh->jpg_buffers.allocated = 0; |
| 689 | fh->jpg_buffers.ready_to_be_freed = 0; |
| 690 | } |
| 691 | |
| 692 | /* |
| 693 | * V4L Buffer grabbing |
| 694 | */ |
| 695 | |
| 696 | static int |
| 697 | zoran_v4l_set_format (struct file *file, |
| 698 | int width, |
| 699 | int height, |
| 700 | const struct zoran_format *format) |
| 701 | { |
| 702 | struct zoran_fh *fh = file->private_data; |
| 703 | struct zoran *zr = fh->zr; |
| 704 | int bpp; |
| 705 | |
| 706 | /* Check size and format of the grab wanted */ |
| 707 | |
| 708 | if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || |
| 709 | height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { |
| 710 | dprintk(1, |
| 711 | KERN_ERR |
| 712 | "%s: v4l_set_format() - wrong frame size (%dx%d)\n", |
| 713 | ZR_DEVNAME(zr), width, height); |
| 714 | return -EINVAL; |
| 715 | } |
| 716 | |
| 717 | bpp = (format->depth + 7) / 8; |
| 718 | |
| 719 | /* Check against available buffer size */ |
| 720 | if (height * width * bpp > fh->v4l_buffers.buffer_size) { |
| 721 | dprintk(1, |
| 722 | KERN_ERR |
| 723 | "%s: v4l_set_format() - video buffer size (%d kB) is too small\n", |
| 724 | ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10); |
| 725 | return -EINVAL; |
| 726 | } |
| 727 | |
| 728 | /* The video front end needs 4-byte alinged line sizes */ |
| 729 | |
| 730 | if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { |
| 731 | dprintk(1, |
| 732 | KERN_ERR |
| 733 | "%s: v4l_set_format() - wrong frame alingment\n", |
| 734 | ZR_DEVNAME(zr)); |
| 735 | return -EINVAL; |
| 736 | } |
| 737 | |
| 738 | fh->v4l_settings.width = width; |
| 739 | fh->v4l_settings.height = height; |
| 740 | fh->v4l_settings.format = format; |
| 741 | fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; |
| 742 | |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | static int |
| 747 | zoran_v4l_queue_frame (struct file *file, |
| 748 | int num) |
| 749 | { |
| 750 | struct zoran_fh *fh = file->private_data; |
| 751 | struct zoran *zr = fh->zr; |
| 752 | unsigned long flags; |
| 753 | int res = 0; |
| 754 | |
| 755 | if (!fh->v4l_buffers.allocated) { |
| 756 | dprintk(1, |
| 757 | KERN_ERR |
| 758 | "%s: v4l_queue_frame() - buffers not yet allocated\n", |
| 759 | ZR_DEVNAME(zr)); |
| 760 | res = -ENOMEM; |
| 761 | } |
| 762 | |
| 763 | /* No grabbing outside the buffer range! */ |
| 764 | if (num >= fh->v4l_buffers.num_buffers || num < 0) { |
| 765 | dprintk(1, |
| 766 | KERN_ERR |
| 767 | "%s: v4l_queue_frame() - buffer %d is out of range\n", |
| 768 | ZR_DEVNAME(zr), num); |
| 769 | res = -EINVAL; |
| 770 | } |
| 771 | |
| 772 | spin_lock_irqsave(&zr->spinlock, flags); |
| 773 | |
| 774 | if (fh->v4l_buffers.active == ZORAN_FREE) { |
| 775 | if (zr->v4l_buffers.active == ZORAN_FREE) { |
| 776 | zr->v4l_buffers = fh->v4l_buffers; |
| 777 | fh->v4l_buffers.active = ZORAN_ACTIVE; |
| 778 | } else { |
| 779 | dprintk(1, |
| 780 | KERN_ERR |
| 781 | "%s: v4l_queue_frame() - another session is already capturing\n", |
| 782 | ZR_DEVNAME(zr)); |
| 783 | res = -EBUSY; |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | /* make sure a grab isn't going on currently with this buffer */ |
| 788 | if (!res) { |
| 789 | switch (zr->v4l_buffers.buffer[num].state) { |
| 790 | default: |
| 791 | case BUZ_STATE_PEND: |
| 792 | if (zr->v4l_buffers.active == ZORAN_FREE) { |
| 793 | fh->v4l_buffers.active = ZORAN_FREE; |
| 794 | zr->v4l_buffers.allocated = 0; |
| 795 | } |
| 796 | res = -EBUSY; /* what are you doing? */ |
| 797 | break; |
| 798 | case BUZ_STATE_DONE: |
| 799 | dprintk(2, |
| 800 | KERN_WARNING |
| 801 | "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n", |
| 802 | ZR_DEVNAME(zr), num); |
| 803 | case BUZ_STATE_USER: |
| 804 | /* since there is at least one unused buffer there's room for at least |
| 805 | * one more pend[] entry */ |
| 806 | zr->v4l_pend[zr->v4l_pend_head++ & |
| 807 | V4L_MASK_FRAME] = num; |
| 808 | zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; |
| 809 | zr->v4l_buffers.buffer[num].bs.length = |
| 810 | fh->v4l_settings.bytesperline * |
| 811 | zr->v4l_settings.height; |
| 812 | fh->v4l_buffers.buffer[num] = |
| 813 | zr->v4l_buffers.buffer[num]; |
| 814 | break; |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | spin_unlock_irqrestore(&zr->spinlock, flags); |
| 819 | |
| 820 | if (!res && zr->v4l_buffers.active == ZORAN_FREE) |
| 821 | zr->v4l_buffers.active = fh->v4l_buffers.active; |
| 822 | |
| 823 | return res; |
| 824 | } |
| 825 | |
| 826 | static int |
| 827 | v4l_grab (struct file *file, |
| 828 | struct video_mmap *mp) |
| 829 | { |
| 830 | struct zoran_fh *fh = file->private_data; |
| 831 | struct zoran *zr = fh->zr; |
| 832 | int res = 0, i; |
| 833 | |
| 834 | for (i = 0; i < zoran_num_formats; i++) { |
| 835 | if (zoran_formats[i].palette == mp->format && |
| 836 | zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE && |
| 837 | !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)) |
| 838 | break; |
| 839 | } |
| 840 | if (i == zoran_num_formats || zoran_formats[i].depth == 0) { |
| 841 | dprintk(1, |
| 842 | KERN_ERR |
| 843 | "%s: v4l_grab() - wrong bytes-per-pixel format\n", |
| 844 | ZR_DEVNAME(zr)); |
| 845 | return -EINVAL; |
| 846 | } |
| 847 | |
| 848 | /* |
| 849 | * To minimize the time spent in the IRQ routine, we avoid setting up |
| 850 | * the video front end there. |
| 851 | * If this grab has different parameters from a running streaming capture |
| 852 | * we stop the streaming capture and start it over again. |
| 853 | */ |
| 854 | if (zr->v4l_memgrab_active && |
| 855 | (zr->v4l_settings.width != mp->width || |
| 856 | zr->v4l_settings.height != mp->height || |
| 857 | zr->v4l_settings.format->palette != mp->format)) { |
| 858 | res = wait_grab_pending(zr); |
| 859 | if (res) |
| 860 | return res; |
| 861 | } |
| 862 | if ((res = zoran_v4l_set_format(file, |
| 863 | mp->width, |
| 864 | mp->height, |
| 865 | &zoran_formats[i]))) |
| 866 | return res; |
| 867 | zr->v4l_settings = fh->v4l_settings; |
| 868 | |
| 869 | /* queue the frame in the pending queue */ |
| 870 | if ((res = zoran_v4l_queue_frame(file, mp->frame))) { |
| 871 | fh->v4l_buffers.active = ZORAN_FREE; |
| 872 | return res; |
| 873 | } |
| 874 | |
| 875 | /* put the 36057 into frame grabbing mode */ |
| 876 | if (!res && !zr->v4l_memgrab_active) |
| 877 | zr36057_set_memgrab(zr, 1); |
| 878 | |
| 879 | //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr)); |
| 880 | |
| 881 | return res; |
| 882 | } |
| 883 | |
| 884 | /* |
| 885 | * Sync on a V4L buffer |
| 886 | */ |
| 887 | |
| 888 | static int |
| 889 | v4l_sync (struct file *file, |
| 890 | int frame) |
| 891 | { |
| 892 | struct zoran_fh *fh = file->private_data; |
| 893 | struct zoran *zr = fh->zr; |
| 894 | unsigned long flags; |
| 895 | |
| 896 | if (fh->v4l_buffers.active == ZORAN_FREE) { |
| 897 | dprintk(1, |
| 898 | KERN_ERR |
| 899 | "%s: v4l_sync() - no grab active for this session\n", |
| 900 | ZR_DEVNAME(zr)); |
| 901 | return -EINVAL; |
| 902 | } |
| 903 | |
| 904 | /* check passed-in frame number */ |
| 905 | if (frame >= fh->v4l_buffers.num_buffers || frame < 0) { |
| 906 | dprintk(1, |
| 907 | KERN_ERR "%s: v4l_sync() - frame %d is invalid\n", |
| 908 | ZR_DEVNAME(zr), frame); |
| 909 | return -EINVAL; |
| 910 | } |
| 911 | |
| 912 | /* Check if is buffer was queued at all */ |
| 913 | if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { |
| 914 | dprintk(1, |
| 915 | KERN_ERR |
| 916 | "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n", |
| 917 | ZR_DEVNAME(zr)); |
| 918 | return -EPROTO; |
| 919 | } |
| 920 | |
| 921 | /* wait on this buffer to get ready */ |
| 922 | if (!wait_event_interruptible_timeout(zr->v4l_capq, |
| 923 | (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), |
| 924 | 10*HZ)) |
| 925 | return -ETIME; |
| 926 | if (signal_pending(current)) |
| 927 | return -ERESTARTSYS; |
| 928 | |
| 929 | /* buffer should now be in BUZ_STATE_DONE */ |
| 930 | if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) |
| 931 | dprintk(2, |
| 932 | KERN_ERR "%s: v4l_sync() - internal state error\n", |
| 933 | ZR_DEVNAME(zr)); |
| 934 | |
| 935 | zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; |
| 936 | fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; |
| 937 | |
| 938 | spin_lock_irqsave(&zr->spinlock, flags); |
| 939 | |
| 940 | /* Check if streaming capture has finished */ |
| 941 | if (zr->v4l_pend_tail == zr->v4l_pend_head) { |
| 942 | zr36057_set_memgrab(zr, 0); |
| 943 | if (zr->v4l_buffers.active == ZORAN_ACTIVE) { |
| 944 | fh->v4l_buffers.active = zr->v4l_buffers.active = |
| 945 | ZORAN_FREE; |
| 946 | zr->v4l_buffers.allocated = 0; |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | spin_unlock_irqrestore(&zr->spinlock, flags); |
| 951 | |
| 952 | return 0; |
| 953 | } |
| 954 | |
| 955 | /* |
| 956 | * Queue a MJPEG buffer for capture/playback |
| 957 | */ |
| 958 | |
| 959 | static int |
| 960 | zoran_jpg_queue_frame (struct file *file, |
| 961 | int num, |
| 962 | enum zoran_codec_mode mode) |
| 963 | { |
| 964 | struct zoran_fh *fh = file->private_data; |
| 965 | struct zoran *zr = fh->zr; |
| 966 | unsigned long flags; |
| 967 | int res = 0; |
| 968 | |
| 969 | /* Check if buffers are allocated */ |
| 970 | if (!fh->jpg_buffers.allocated) { |
| 971 | dprintk(1, |
| 972 | KERN_ERR |
| 973 | "%s: jpg_queue_frame() - buffers not yet allocated\n", |
| 974 | ZR_DEVNAME(zr)); |
| 975 | return -ENOMEM; |
| 976 | } |
| 977 | |
| 978 | /* No grabbing outside the buffer range! */ |
| 979 | if (num >= fh->jpg_buffers.num_buffers || num < 0) { |
| 980 | dprintk(1, |
| 981 | KERN_ERR |
| 982 | "%s: jpg_queue_frame() - buffer %d out of range\n", |
| 983 | ZR_DEVNAME(zr), num); |
| 984 | return -EINVAL; |
| 985 | } |
| 986 | |
| 987 | /* what is the codec mode right now? */ |
| 988 | if (zr->codec_mode == BUZ_MODE_IDLE) { |
| 989 | zr->jpg_settings = fh->jpg_settings; |
| 990 | } else if (zr->codec_mode != mode) { |
| 991 | /* wrong codec mode active - invalid */ |
| 992 | dprintk(1, |
| 993 | KERN_ERR |
| 994 | "%s: jpg_queue_frame() - codec in wrong mode\n", |
| 995 | ZR_DEVNAME(zr)); |
| 996 | return -EINVAL; |
| 997 | } |
| 998 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | if (fh->jpg_buffers.active == ZORAN_FREE) { |
| 1000 | if (zr->jpg_buffers.active == ZORAN_FREE) { |
| 1001 | zr->jpg_buffers = fh->jpg_buffers; |
| 1002 | fh->jpg_buffers.active = ZORAN_ACTIVE; |
| 1003 | } else { |
| 1004 | dprintk(1, |
| 1005 | KERN_ERR |
| 1006 | "%s: jpg_queue_frame() - another session is already capturing\n", |
| 1007 | ZR_DEVNAME(zr)); |
| 1008 | res = -EBUSY; |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | if (!res && zr->codec_mode == BUZ_MODE_IDLE) { |
| 1013 | /* Ok load up the jpeg codec */ |
| 1014 | zr36057_enable_jpg(zr, mode); |
| 1015 | } |
| 1016 | |
Ronald S. Bultje | 8bc3efc | 2005-11-07 01:00:22 -0800 | [diff] [blame] | 1017 | spin_lock_irqsave(&zr->spinlock, flags); |
| 1018 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | if (!res) { |
| 1020 | switch (zr->jpg_buffers.buffer[num].state) { |
| 1021 | case BUZ_STATE_DONE: |
| 1022 | dprintk(2, |
| 1023 | KERN_WARNING |
| 1024 | "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n", |
| 1025 | ZR_DEVNAME(zr)); |
| 1026 | case BUZ_STATE_USER: |
| 1027 | /* since there is at least one unused buffer there's room for at |
| 1028 | *least one more pend[] entry */ |
| 1029 | zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = |
| 1030 | num; |
| 1031 | zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; |
| 1032 | fh->jpg_buffers.buffer[num] = |
| 1033 | zr->jpg_buffers.buffer[num]; |
| 1034 | zoran_feed_stat_com(zr); |
| 1035 | break; |
| 1036 | default: |
| 1037 | case BUZ_STATE_DMA: |
| 1038 | case BUZ_STATE_PEND: |
| 1039 | if (zr->jpg_buffers.active == ZORAN_FREE) { |
| 1040 | fh->jpg_buffers.active = ZORAN_FREE; |
| 1041 | zr->jpg_buffers.allocated = 0; |
| 1042 | } |
| 1043 | res = -EBUSY; /* what are you doing? */ |
| 1044 | break; |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | spin_unlock_irqrestore(&zr->spinlock, flags); |
| 1049 | |
| 1050 | if (!res && zr->jpg_buffers.active == ZORAN_FREE) { |
| 1051 | zr->jpg_buffers.active = fh->jpg_buffers.active; |
| 1052 | } |
| 1053 | |
| 1054 | return res; |
| 1055 | } |
| 1056 | |
| 1057 | static int |
| 1058 | jpg_qbuf (struct file *file, |
| 1059 | int frame, |
| 1060 | enum zoran_codec_mode mode) |
| 1061 | { |
| 1062 | struct zoran_fh *fh = file->private_data; |
| 1063 | struct zoran *zr = fh->zr; |
| 1064 | int res = 0; |
| 1065 | |
| 1066 | /* Does the user want to stop streaming? */ |
| 1067 | if (frame < 0) { |
| 1068 | if (zr->codec_mode == mode) { |
| 1069 | if (fh->jpg_buffers.active == ZORAN_FREE) { |
| 1070 | dprintk(1, |
| 1071 | KERN_ERR |
| 1072 | "%s: jpg_qbuf(-1) - session not active\n", |
| 1073 | ZR_DEVNAME(zr)); |
| 1074 | return -EINVAL; |
| 1075 | } |
| 1076 | fh->jpg_buffers.active = zr->jpg_buffers.active = |
| 1077 | ZORAN_FREE; |
| 1078 | zr->jpg_buffers.allocated = 0; |
| 1079 | zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| 1080 | return 0; |
| 1081 | } else { |
| 1082 | dprintk(1, |
| 1083 | KERN_ERR |
| 1084 | "%s: jpg_qbuf() - stop streaming but not in streaming mode\n", |
| 1085 | ZR_DEVNAME(zr)); |
| 1086 | return -EINVAL; |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | if ((res = zoran_jpg_queue_frame(file, frame, mode))) |
| 1091 | return res; |
| 1092 | |
| 1093 | /* Start the jpeg codec when the first frame is queued */ |
| 1094 | if (!res && zr->jpg_que_head == 1) |
| 1095 | jpeg_start(zr); |
| 1096 | |
| 1097 | return res; |
| 1098 | } |
| 1099 | |
| 1100 | /* |
| 1101 | * Sync on a MJPEG buffer |
| 1102 | */ |
| 1103 | |
| 1104 | static int |
| 1105 | jpg_sync (struct file *file, |
| 1106 | struct zoran_sync *bs) |
| 1107 | { |
| 1108 | struct zoran_fh *fh = file->private_data; |
| 1109 | struct zoran *zr = fh->zr; |
| 1110 | unsigned long flags; |
| 1111 | int frame; |
| 1112 | |
| 1113 | if (fh->jpg_buffers.active == ZORAN_FREE) { |
| 1114 | dprintk(1, |
| 1115 | KERN_ERR |
| 1116 | "%s: jpg_sync() - capture is not currently active\n", |
| 1117 | ZR_DEVNAME(zr)); |
| 1118 | return -EINVAL; |
| 1119 | } |
| 1120 | if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && |
| 1121 | zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { |
| 1122 | dprintk(1, |
| 1123 | KERN_ERR |
| 1124 | "%s: jpg_sync() - codec not in streaming mode\n", |
| 1125 | ZR_DEVNAME(zr)); |
| 1126 | return -EINVAL; |
| 1127 | } |
| 1128 | if (!wait_event_interruptible_timeout(zr->jpg_capq, |
| 1129 | (zr->jpg_que_tail != zr->jpg_dma_tail || |
| 1130 | zr->jpg_dma_tail == zr->jpg_dma_head), |
| 1131 | 10*HZ)) { |
| 1132 | int isr; |
| 1133 | |
| 1134 | btand(~ZR36057_JMC_Go_en, ZR36057_JMC); |
| 1135 | udelay(1); |
| 1136 | zr->codec->control(zr->codec, CODEC_G_STATUS, |
| 1137 | sizeof(isr), &isr); |
| 1138 | dprintk(1, |
| 1139 | KERN_ERR |
| 1140 | "%s: jpg_sync() - timeout: codec isr=0x%02x\n", |
| 1141 | ZR_DEVNAME(zr), isr); |
| 1142 | |
| 1143 | return -ETIME; |
| 1144 | |
| 1145 | } |
| 1146 | if (signal_pending(current)) |
| 1147 | return -ERESTARTSYS; |
| 1148 | |
| 1149 | spin_lock_irqsave(&zr->spinlock, flags); |
| 1150 | |
| 1151 | if (zr->jpg_dma_tail != zr->jpg_dma_head) |
| 1152 | frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; |
| 1153 | else |
| 1154 | frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; |
| 1155 | |
| 1156 | /* buffer should now be in BUZ_STATE_DONE */ |
| 1157 | if (*zr_debug > 0) |
| 1158 | if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) |
| 1159 | dprintk(2, |
| 1160 | KERN_ERR |
| 1161 | "%s: jpg_sync() - internal state error\n", |
| 1162 | ZR_DEVNAME(zr)); |
| 1163 | |
| 1164 | *bs = zr->jpg_buffers.buffer[frame].bs; |
| 1165 | bs->frame = frame; |
| 1166 | zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; |
| 1167 | fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; |
| 1168 | |
| 1169 | spin_unlock_irqrestore(&zr->spinlock, flags); |
| 1170 | |
| 1171 | return 0; |
| 1172 | } |
| 1173 | |
| 1174 | static void |
| 1175 | zoran_open_init_session (struct file *file) |
| 1176 | { |
| 1177 | int i; |
| 1178 | struct zoran_fh *fh = file->private_data; |
| 1179 | struct zoran *zr = fh->zr; |
| 1180 | |
| 1181 | /* Per default, map the V4L Buffers */ |
| 1182 | fh->map_mode = ZORAN_MAP_MODE_RAW; |
| 1183 | |
| 1184 | /* take over the card's current settings */ |
| 1185 | fh->overlay_settings = zr->overlay_settings; |
| 1186 | fh->overlay_settings.is_set = 0; |
| 1187 | fh->overlay_settings.format = zr->overlay_settings.format; |
| 1188 | fh->overlay_active = ZORAN_FREE; |
| 1189 | |
| 1190 | /* v4l settings */ |
| 1191 | fh->v4l_settings = zr->v4l_settings; |
| 1192 | |
| 1193 | /* v4l_buffers */ |
| 1194 | memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct)); |
| 1195 | for (i = 0; i < VIDEO_MAX_FRAME; i++) { |
| 1196 | fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ |
| 1197 | fh->v4l_buffers.buffer[i].bs.frame = i; |
| 1198 | } |
| 1199 | fh->v4l_buffers.allocated = 0; |
| 1200 | fh->v4l_buffers.ready_to_be_freed = 0; |
| 1201 | fh->v4l_buffers.active = ZORAN_FREE; |
| 1202 | fh->v4l_buffers.buffer_size = v4l_bufsize; |
| 1203 | fh->v4l_buffers.num_buffers = v4l_nbufs; |
| 1204 | |
| 1205 | /* jpg settings */ |
| 1206 | fh->jpg_settings = zr->jpg_settings; |
| 1207 | |
| 1208 | /* jpg_buffers */ |
| 1209 | memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct)); |
| 1210 | for (i = 0; i < BUZ_MAX_FRAME; i++) { |
| 1211 | fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ |
| 1212 | fh->jpg_buffers.buffer[i].bs.frame = i; |
| 1213 | } |
| 1214 | fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous; |
| 1215 | fh->jpg_buffers.allocated = 0; |
| 1216 | fh->jpg_buffers.ready_to_be_freed = 0; |
| 1217 | fh->jpg_buffers.active = ZORAN_FREE; |
| 1218 | fh->jpg_buffers.buffer_size = jpg_bufsize; |
| 1219 | fh->jpg_buffers.num_buffers = jpg_nbufs; |
| 1220 | } |
| 1221 | |
| 1222 | static void |
| 1223 | zoran_close_end_session (struct file *file) |
| 1224 | { |
| 1225 | struct zoran_fh *fh = file->private_data; |
| 1226 | struct zoran *zr = fh->zr; |
| 1227 | |
| 1228 | /* overlay */ |
| 1229 | if (fh->overlay_active != ZORAN_FREE) { |
| 1230 | fh->overlay_active = zr->overlay_active = ZORAN_FREE; |
| 1231 | zr->v4l_overlay_active = 0; |
| 1232 | if (!zr->v4l_memgrab_active) |
| 1233 | zr36057_overlay(zr, 0); |
| 1234 | zr->overlay_mask = NULL; |
| 1235 | } |
| 1236 | |
| 1237 | /* v4l capture */ |
| 1238 | if (fh->v4l_buffers.active != ZORAN_FREE) { |
| 1239 | zr36057_set_memgrab(zr, 0); |
| 1240 | zr->v4l_buffers.allocated = 0; |
| 1241 | zr->v4l_buffers.active = fh->v4l_buffers.active = |
| 1242 | ZORAN_FREE; |
| 1243 | } |
| 1244 | |
| 1245 | /* v4l buffers */ |
| 1246 | if (fh->v4l_buffers.allocated || |
| 1247 | fh->v4l_buffers.ready_to_be_freed) { |
| 1248 | v4l_fbuffer_free(file); |
| 1249 | } |
| 1250 | |
| 1251 | /* jpg capture */ |
| 1252 | if (fh->jpg_buffers.active != ZORAN_FREE) { |
| 1253 | zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| 1254 | zr->jpg_buffers.allocated = 0; |
| 1255 | zr->jpg_buffers.active = fh->jpg_buffers.active = |
| 1256 | ZORAN_FREE; |
| 1257 | } |
| 1258 | |
| 1259 | /* jpg buffers */ |
| 1260 | if (fh->jpg_buffers.allocated || |
| 1261 | fh->jpg_buffers.ready_to_be_freed) { |
| 1262 | jpg_fbuffer_free(file); |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | /* |
| 1267 | * Open a zoran card. Right now the flags stuff is just playing |
| 1268 | */ |
| 1269 | |
| 1270 | static int |
| 1271 | zoran_open (struct inode *inode, |
| 1272 | struct file *file) |
| 1273 | { |
| 1274 | unsigned int minor = iminor(inode); |
| 1275 | struct zoran *zr = NULL; |
| 1276 | struct zoran_fh *fh; |
| 1277 | int i, res, first_open = 0, have_module_locks = 0; |
| 1278 | |
| 1279 | /* find the device */ |
| 1280 | for (i = 0; i < zoran_num; i++) { |
| 1281 | if (zoran[i].video_dev->minor == minor) { |
| 1282 | zr = &zoran[i]; |
| 1283 | break; |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | if (!zr) { |
| 1288 | dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME); |
| 1289 | res = -ENODEV; |
| 1290 | goto open_unlock_and_return; |
| 1291 | } |
| 1292 | |
| 1293 | /* see fs/device.c - the kernel already locks during open(), |
| 1294 | * so locking ourselves only causes deadlocks */ |
| 1295 | /*down(&zr->resource_lock);*/ |
| 1296 | |
| 1297 | if (!zr->decoder) { |
| 1298 | dprintk(1, |
| 1299 | KERN_ERR "%s: no TV decoder loaded for device!\n", |
| 1300 | ZR_DEVNAME(zr)); |
| 1301 | res = -EIO; |
| 1302 | goto open_unlock_and_return; |
| 1303 | } |
| 1304 | |
| 1305 | /* try to grab a module lock */ |
| 1306 | if (!try_module_get(THIS_MODULE)) { |
| 1307 | dprintk(1, |
| 1308 | KERN_ERR |
| 1309 | "%s: failed to acquire my own lock! PANIC!\n", |
| 1310 | ZR_DEVNAME(zr)); |
| 1311 | res = -ENODEV; |
| 1312 | goto open_unlock_and_return; |
| 1313 | } |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1314 | if (!try_module_get(zr->decoder->driver->driver.owner)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1315 | dprintk(1, |
| 1316 | KERN_ERR |
| 1317 | "%s: failed to grab ownership of i2c decoder\n", |
| 1318 | ZR_DEVNAME(zr)); |
| 1319 | res = -EIO; |
| 1320 | module_put(THIS_MODULE); |
| 1321 | goto open_unlock_and_return; |
| 1322 | } |
| 1323 | if (zr->encoder && |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1324 | !try_module_get(zr->encoder->driver->driver.owner)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | dprintk(1, |
| 1326 | KERN_ERR |
| 1327 | "%s: failed to grab ownership of i2c encoder\n", |
| 1328 | ZR_DEVNAME(zr)); |
| 1329 | res = -EIO; |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1330 | module_put(zr->decoder->driver->driver.owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | module_put(THIS_MODULE); |
| 1332 | goto open_unlock_and_return; |
| 1333 | } |
| 1334 | |
| 1335 | have_module_locks = 1; |
| 1336 | |
| 1337 | if (zr->user >= 2048) { |
| 1338 | dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", |
| 1339 | ZR_DEVNAME(zr), zr->user); |
| 1340 | res = -EBUSY; |
| 1341 | goto open_unlock_and_return; |
| 1342 | } |
| 1343 | |
| 1344 | dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n", |
| 1345 | ZR_DEVNAME(zr), current->comm, current->pid, zr->user); |
| 1346 | |
| 1347 | /* now, create the open()-specific file_ops struct */ |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 1348 | fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | if (!fh) { |
| 1350 | dprintk(1, |
| 1351 | KERN_ERR |
| 1352 | "%s: zoran_open() - allocation of zoran_fh failed\n", |
| 1353 | ZR_DEVNAME(zr)); |
| 1354 | res = -ENOMEM; |
| 1355 | goto open_unlock_and_return; |
| 1356 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows |
| 1358 | * on norm-change! */ |
| 1359 | fh->overlay_mask = |
| 1360 | kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); |
| 1361 | if (!fh->overlay_mask) { |
| 1362 | dprintk(1, |
| 1363 | KERN_ERR |
| 1364 | "%s: zoran_open() - allocation of overlay_mask failed\n", |
| 1365 | ZR_DEVNAME(zr)); |
| 1366 | kfree(fh); |
| 1367 | res = -ENOMEM; |
| 1368 | goto open_unlock_and_return; |
| 1369 | } |
| 1370 | |
| 1371 | if (zr->user++ == 0) |
| 1372 | first_open = 1; |
| 1373 | |
| 1374 | /*up(&zr->resource_lock);*/ |
| 1375 | |
| 1376 | /* default setup - TODO: look at flags */ |
| 1377 | if (first_open) { /* First device open */ |
| 1378 | zr36057_restart(zr); |
| 1379 | zoran_open_init_params(zr); |
| 1380 | zoran_init_hardware(zr); |
| 1381 | |
| 1382 | btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); |
| 1383 | } |
| 1384 | |
| 1385 | /* set file_ops stuff */ |
| 1386 | file->private_data = fh; |
| 1387 | fh->zr = zr; |
| 1388 | zoran_open_init_session(file); |
| 1389 | |
| 1390 | return 0; |
| 1391 | |
| 1392 | open_unlock_and_return: |
| 1393 | /* if we grabbed locks, release them accordingly */ |
| 1394 | if (have_module_locks) { |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1395 | module_put(zr->decoder->driver->driver.owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | if (zr->encoder) { |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1397 | module_put(zr->encoder->driver->driver.owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | } |
| 1399 | module_put(THIS_MODULE); |
| 1400 | } |
| 1401 | |
| 1402 | /* if there's no device found, we didn't obtain the lock either */ |
| 1403 | if (zr) { |
| 1404 | /*up(&zr->resource_lock);*/ |
| 1405 | } |
| 1406 | |
| 1407 | return res; |
| 1408 | } |
| 1409 | |
| 1410 | static int |
| 1411 | zoran_close (struct inode *inode, |
| 1412 | struct file *file) |
| 1413 | { |
| 1414 | struct zoran_fh *fh = file->private_data; |
| 1415 | struct zoran *zr = fh->zr; |
| 1416 | |
| 1417 | dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n", |
| 1418 | ZR_DEVNAME(zr), current->comm, current->pid, zr->user); |
| 1419 | |
| 1420 | /* kernel locks (fs/device.c), so don't do that ourselves |
| 1421 | * (prevents deadlocks) */ |
| 1422 | /*down(&zr->resource_lock);*/ |
| 1423 | |
| 1424 | zoran_close_end_session(file); |
| 1425 | |
| 1426 | if (zr->user-- == 1) { /* Last process */ |
| 1427 | /* Clean up JPEG process */ |
| 1428 | wake_up_interruptible(&zr->jpg_capq); |
| 1429 | zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| 1430 | zr->jpg_buffers.allocated = 0; |
| 1431 | zr->jpg_buffers.active = ZORAN_FREE; |
| 1432 | |
| 1433 | /* disable interrupts */ |
| 1434 | btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); |
| 1435 | |
| 1436 | if (*zr_debug > 1) |
| 1437 | print_interrupts(zr); |
| 1438 | |
| 1439 | /* Overlay off */ |
| 1440 | zr->v4l_overlay_active = 0; |
| 1441 | zr36057_overlay(zr, 0); |
| 1442 | zr->overlay_mask = NULL; |
| 1443 | |
| 1444 | /* capture off */ |
| 1445 | wake_up_interruptible(&zr->v4l_capq); |
| 1446 | zr36057_set_memgrab(zr, 0); |
| 1447 | zr->v4l_buffers.allocated = 0; |
| 1448 | zr->v4l_buffers.active = ZORAN_FREE; |
| 1449 | zoran_set_pci_master(zr, 0); |
| 1450 | |
| 1451 | if (!pass_through) { /* Switch to color bar */ |
| 1452 | int zero = 0, two = 2; |
| 1453 | decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero); |
| 1454 | encoder_command(zr, ENCODER_SET_INPUT, &two); |
| 1455 | } |
| 1456 | } |
| 1457 | |
| 1458 | file->private_data = NULL; |
| 1459 | kfree(fh->overlay_mask); |
| 1460 | kfree(fh); |
| 1461 | |
| 1462 | /* release locks on the i2c modules */ |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1463 | module_put(zr->decoder->driver->driver.owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | if (zr->encoder) { |
Laurent Riffard | 604f28e | 2005-11-26 20:43:39 +0100 | [diff] [blame] | 1465 | module_put(zr->encoder->driver->driver.owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | } |
| 1467 | module_put(THIS_MODULE); |
| 1468 | |
| 1469 | /*up(&zr->resource_lock);*/ |
| 1470 | |
| 1471 | dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr)); |
| 1472 | |
| 1473 | return 0; |
| 1474 | } |
| 1475 | |
| 1476 | |
| 1477 | static ssize_t |
| 1478 | zoran_read (struct file *file, |
| 1479 | char __user *data, |
| 1480 | size_t count, |
| 1481 | loff_t *ppos) |
| 1482 | { |
| 1483 | /* we simply don't support read() (yet)... */ |
| 1484 | |
| 1485 | return -EINVAL; |
| 1486 | } |
| 1487 | |
| 1488 | static ssize_t |
| 1489 | zoran_write (struct file *file, |
| 1490 | const char __user *data, |
| 1491 | size_t count, |
| 1492 | loff_t *ppos) |
| 1493 | { |
| 1494 | /* ...and the same goes for write() */ |
| 1495 | |
| 1496 | return -EINVAL; |
| 1497 | } |
| 1498 | |
| 1499 | static int |
| 1500 | setup_fbuffer (struct file *file, |
| 1501 | void *base, |
| 1502 | const struct zoran_format *fmt, |
| 1503 | int width, |
| 1504 | int height, |
| 1505 | int bytesperline) |
| 1506 | { |
| 1507 | struct zoran_fh *fh = file->private_data; |
| 1508 | struct zoran *zr = fh->zr; |
| 1509 | |
| 1510 | /* (Ronald) v4l/v4l2 guidelines */ |
| 1511 | if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) |
| 1512 | return -EPERM; |
| 1513 | |
| 1514 | /* we need a bytesperline value, even if not given */ |
| 1515 | if (!bytesperline) |
| 1516 | bytesperline = width * ((fmt->depth + 7) & ~7) / 8; |
| 1517 | |
| 1518 | #if 0 |
| 1519 | if (zr->overlay_active) { |
| 1520 | /* dzjee... stupid users... don't even bother to turn off |
| 1521 | * overlay before changing the memory location... |
| 1522 | * normally, we would return errors here. However, one of |
| 1523 | * the tools that does this is... xawtv! and since xawtv |
| 1524 | * is used by +/- 99% of the users, we'd rather be user- |
| 1525 | * friendly and silently do as if nothing went wrong */ |
| 1526 | dprintk(3, |
| 1527 | KERN_ERR |
| 1528 | "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n", |
| 1529 | ZR_DEVNAME(zr)); |
| 1530 | zr36057_overlay(zr, 0); |
| 1531 | } |
| 1532 | #endif |
| 1533 | |
| 1534 | if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { |
| 1535 | dprintk(1, |
| 1536 | KERN_ERR |
| 1537 | "%s: setup_fbuffer() - no valid overlay format given\n", |
| 1538 | ZR_DEVNAME(zr)); |
| 1539 | return -EINVAL; |
| 1540 | } |
| 1541 | if (height <= 0 || width <= 0 || bytesperline <= 0) { |
| 1542 | dprintk(1, |
| 1543 | KERN_ERR |
| 1544 | "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n", |
| 1545 | ZR_DEVNAME(zr), width, height, bytesperline); |
| 1546 | return -EINVAL; |
| 1547 | } |
| 1548 | if (bytesperline & 3) { |
| 1549 | dprintk(1, |
| 1550 | KERN_ERR |
| 1551 | "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n", |
| 1552 | ZR_DEVNAME(zr), bytesperline); |
| 1553 | return -EINVAL; |
| 1554 | } |
| 1555 | |
| 1556 | zr->buffer.base = (void *) ((unsigned long) base & ~3); |
| 1557 | zr->buffer.height = height; |
| 1558 | zr->buffer.width = width; |
| 1559 | zr->buffer.depth = fmt->depth; |
| 1560 | zr->overlay_settings.format = fmt; |
| 1561 | zr->buffer.bytesperline = bytesperline; |
| 1562 | |
| 1563 | /* The user should set new window parameters */ |
| 1564 | zr->overlay_settings.is_set = 0; |
| 1565 | |
| 1566 | return 0; |
| 1567 | } |
| 1568 | |
| 1569 | |
| 1570 | static int |
| 1571 | setup_window (struct file *file, |
| 1572 | int x, |
| 1573 | int y, |
| 1574 | int width, |
| 1575 | int height, |
| 1576 | struct video_clip __user *clips, |
| 1577 | int clipcount, |
| 1578 | void __user *bitmap) |
| 1579 | { |
| 1580 | struct zoran_fh *fh = file->private_data; |
| 1581 | struct zoran *zr = fh->zr; |
| 1582 | struct video_clip *vcp = NULL; |
| 1583 | int on, end; |
| 1584 | |
| 1585 | |
| 1586 | if (!zr->buffer.base) { |
| 1587 | dprintk(1, |
| 1588 | KERN_ERR |
| 1589 | "%s: setup_window() - frame buffer has to be set first\n", |
| 1590 | ZR_DEVNAME(zr)); |
| 1591 | return -EINVAL; |
| 1592 | } |
| 1593 | |
| 1594 | if (!fh->overlay_settings.format) { |
| 1595 | dprintk(1, |
| 1596 | KERN_ERR |
| 1597 | "%s: setup_window() - no overlay format set\n", |
| 1598 | ZR_DEVNAME(zr)); |
| 1599 | return -EINVAL; |
| 1600 | } |
| 1601 | |
| 1602 | /* |
| 1603 | * The video front end needs 4-byte alinged line sizes, we correct that |
| 1604 | * silently here if necessary |
| 1605 | */ |
| 1606 | if (zr->buffer.depth == 15 || zr->buffer.depth == 16) { |
| 1607 | end = (x + width) & ~1; /* round down */ |
| 1608 | x = (x + 1) & ~1; /* round up */ |
| 1609 | width = end - x; |
| 1610 | } |
| 1611 | |
| 1612 | if (zr->buffer.depth == 24) { |
| 1613 | end = (x + width) & ~3; /* round down */ |
| 1614 | x = (x + 3) & ~3; /* round up */ |
| 1615 | width = end - x; |
| 1616 | } |
| 1617 | |
| 1618 | if (width > BUZ_MAX_WIDTH) |
| 1619 | width = BUZ_MAX_WIDTH; |
| 1620 | if (height > BUZ_MAX_HEIGHT) |
| 1621 | height = BUZ_MAX_HEIGHT; |
| 1622 | |
| 1623 | /* Check for vaild parameters */ |
| 1624 | if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || |
| 1625 | width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { |
| 1626 | dprintk(1, |
| 1627 | KERN_ERR |
| 1628 | "%s: setup_window() - width = %d or height = %d invalid\n", |
| 1629 | ZR_DEVNAME(zr), width, height); |
| 1630 | return -EINVAL; |
| 1631 | } |
| 1632 | |
| 1633 | fh->overlay_settings.x = x; |
| 1634 | fh->overlay_settings.y = y; |
| 1635 | fh->overlay_settings.width = width; |
| 1636 | fh->overlay_settings.height = height; |
| 1637 | fh->overlay_settings.clipcount = clipcount; |
| 1638 | |
| 1639 | /* |
| 1640 | * If an overlay is running, we have to switch it off |
| 1641 | * and switch it on again in order to get the new settings in effect. |
| 1642 | * |
| 1643 | * We also want to avoid that the overlay mask is written |
| 1644 | * when an overlay is running. |
| 1645 | */ |
| 1646 | |
| 1647 | on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && |
| 1648 | zr->overlay_active != ZORAN_FREE && |
| 1649 | fh->overlay_active != ZORAN_FREE; |
| 1650 | if (on) |
| 1651 | zr36057_overlay(zr, 0); |
| 1652 | |
| 1653 | /* |
| 1654 | * Write the overlay mask if clips are wanted. |
| 1655 | * We prefer a bitmap. |
| 1656 | */ |
| 1657 | if (bitmap) { |
| 1658 | /* fake value - it just means we want clips */ |
| 1659 | fh->overlay_settings.clipcount = 1; |
| 1660 | |
| 1661 | if (copy_from_user(fh->overlay_mask, bitmap, |
| 1662 | (width * height + 7) / 8)) { |
| 1663 | return -EFAULT; |
| 1664 | } |
| 1665 | } else if (clipcount > 0) { |
| 1666 | /* write our own bitmap from the clips */ |
| 1667 | vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4)); |
| 1668 | if (vcp == NULL) { |
| 1669 | dprintk(1, |
| 1670 | KERN_ERR |
| 1671 | "%s: setup_window() - Alloc of clip mask failed\n", |
| 1672 | ZR_DEVNAME(zr)); |
| 1673 | return -ENOMEM; |
| 1674 | } |
| 1675 | if (copy_from_user |
| 1676 | (vcp, clips, sizeof(struct video_clip) * clipcount)) { |
| 1677 | vfree(vcp); |
| 1678 | return -EFAULT; |
| 1679 | } |
| 1680 | write_overlay_mask(file, vcp, clipcount); |
| 1681 | vfree(vcp); |
| 1682 | } |
| 1683 | |
| 1684 | fh->overlay_settings.is_set = 1; |
| 1685 | if (fh->overlay_active != ZORAN_FREE && |
| 1686 | zr->overlay_active != ZORAN_FREE) |
| 1687 | zr->overlay_settings = fh->overlay_settings; |
| 1688 | |
| 1689 | if (on) |
| 1690 | zr36057_overlay(zr, 1); |
| 1691 | |
| 1692 | /* Make sure the changes come into effect */ |
| 1693 | return wait_grab_pending(zr); |
| 1694 | } |
| 1695 | |
| 1696 | static int |
| 1697 | setup_overlay (struct file *file, |
| 1698 | int on) |
| 1699 | { |
| 1700 | struct zoran_fh *fh = file->private_data; |
| 1701 | struct zoran *zr = fh->zr; |
| 1702 | |
| 1703 | /* If there is nothing to do, return immediatly */ |
| 1704 | if ((on && fh->overlay_active != ZORAN_FREE) || |
| 1705 | (!on && fh->overlay_active == ZORAN_FREE)) |
| 1706 | return 0; |
| 1707 | |
| 1708 | /* check whether we're touching someone else's overlay */ |
| 1709 | if (on && zr->overlay_active != ZORAN_FREE && |
| 1710 | fh->overlay_active == ZORAN_FREE) { |
| 1711 | dprintk(1, |
| 1712 | KERN_ERR |
| 1713 | "%s: setup_overlay() - overlay is already active for another session\n", |
| 1714 | ZR_DEVNAME(zr)); |
| 1715 | return -EBUSY; |
| 1716 | } |
| 1717 | if (!on && zr->overlay_active != ZORAN_FREE && |
| 1718 | fh->overlay_active == ZORAN_FREE) { |
| 1719 | dprintk(1, |
| 1720 | KERN_ERR |
| 1721 | "%s: setup_overlay() - you cannot cancel someone else's session\n", |
| 1722 | ZR_DEVNAME(zr)); |
| 1723 | return -EPERM; |
| 1724 | } |
| 1725 | |
| 1726 | if (on == 0) { |
| 1727 | zr->overlay_active = fh->overlay_active = ZORAN_FREE; |
| 1728 | zr->v4l_overlay_active = 0; |
| 1729 | /* When a grab is running, the video simply |
| 1730 | * won't be switched on any more */ |
| 1731 | if (!zr->v4l_memgrab_active) |
| 1732 | zr36057_overlay(zr, 0); |
| 1733 | zr->overlay_mask = NULL; |
| 1734 | } else { |
| 1735 | if (!zr->buffer.base || !fh->overlay_settings.is_set) { |
| 1736 | dprintk(1, |
| 1737 | KERN_ERR |
| 1738 | "%s: setup_overlay() - buffer or window not set\n", |
| 1739 | ZR_DEVNAME(zr)); |
| 1740 | return -EINVAL; |
| 1741 | } |
| 1742 | if (!fh->overlay_settings.format) { |
| 1743 | dprintk(1, |
| 1744 | KERN_ERR |
| 1745 | "%s: setup_overlay() - no overlay format set\n", |
| 1746 | ZR_DEVNAME(zr)); |
| 1747 | return -EINVAL; |
| 1748 | } |
| 1749 | zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; |
| 1750 | zr->v4l_overlay_active = 1; |
| 1751 | zr->overlay_mask = fh->overlay_mask; |
| 1752 | zr->overlay_settings = fh->overlay_settings; |
| 1753 | if (!zr->v4l_memgrab_active) |
| 1754 | zr36057_overlay(zr, 1); |
| 1755 | /* When a grab is running, the video will be |
| 1756 | * switched on when grab is finished */ |
| 1757 | } |
| 1758 | |
| 1759 | /* Make sure the changes come into effect */ |
| 1760 | return wait_grab_pending(zr); |
| 1761 | } |
| 1762 | |
| 1763 | #ifdef HAVE_V4L2 |
| 1764 | /* get the status of a buffer in the clients buffer queue */ |
| 1765 | static int |
| 1766 | zoran_v4l2_buffer_status (struct file *file, |
| 1767 | struct v4l2_buffer *buf, |
| 1768 | int num) |
| 1769 | { |
| 1770 | struct zoran_fh *fh = file->private_data; |
| 1771 | struct zoran *zr = fh->zr; |
| 1772 | |
| 1773 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1774 | |
| 1775 | switch (fh->map_mode) { |
| 1776 | case ZORAN_MAP_MODE_RAW: |
| 1777 | |
| 1778 | /* check range */ |
| 1779 | if (num < 0 || num >= fh->v4l_buffers.num_buffers || |
| 1780 | !fh->v4l_buffers.allocated) { |
| 1781 | dprintk(1, |
| 1782 | KERN_ERR |
| 1783 | "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", |
| 1784 | ZR_DEVNAME(zr)); |
| 1785 | return -EINVAL; |
| 1786 | } |
| 1787 | |
| 1788 | buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1789 | buf->length = fh->v4l_buffers.buffer_size; |
| 1790 | |
| 1791 | /* get buffer */ |
| 1792 | buf->bytesused = fh->v4l_buffers.buffer[num].bs.length; |
| 1793 | if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE || |
| 1794 | fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) { |
| 1795 | buf->sequence = fh->v4l_buffers.buffer[num].bs.seq; |
| 1796 | buf->flags |= V4L2_BUF_FLAG_DONE; |
| 1797 | buf->timestamp = |
| 1798 | fh->v4l_buffers.buffer[num].bs.timestamp; |
| 1799 | } else { |
| 1800 | buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1801 | } |
| 1802 | |
| 1803 | if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) |
| 1804 | buf->field = V4L2_FIELD_TOP; |
| 1805 | else |
| 1806 | buf->field = V4L2_FIELD_INTERLACED; |
| 1807 | |
| 1808 | break; |
| 1809 | |
| 1810 | case ZORAN_MAP_MODE_JPG_REC: |
| 1811 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 1812 | |
| 1813 | /* check range */ |
| 1814 | if (num < 0 || num >= fh->jpg_buffers.num_buffers || |
| 1815 | !fh->jpg_buffers.allocated) { |
| 1816 | dprintk(1, |
| 1817 | KERN_ERR |
| 1818 | "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", |
| 1819 | ZR_DEVNAME(zr)); |
| 1820 | return -EINVAL; |
| 1821 | } |
| 1822 | |
| 1823 | buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? |
| 1824 | V4L2_BUF_TYPE_VIDEO_CAPTURE : |
| 1825 | V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| 1826 | buf->length = fh->jpg_buffers.buffer_size; |
| 1827 | |
| 1828 | /* these variables are only written after frame has been captured */ |
| 1829 | if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE || |
| 1830 | fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) { |
| 1831 | buf->sequence = fh->jpg_buffers.buffer[num].bs.seq; |
| 1832 | buf->timestamp = |
| 1833 | fh->jpg_buffers.buffer[num].bs.timestamp; |
| 1834 | buf->bytesused = |
| 1835 | fh->jpg_buffers.buffer[num].bs.length; |
| 1836 | buf->flags |= V4L2_BUF_FLAG_DONE; |
| 1837 | } else { |
| 1838 | buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1839 | } |
| 1840 | |
| 1841 | /* which fields are these? */ |
| 1842 | if (fh->jpg_settings.TmpDcm != 1) |
| 1843 | buf->field = |
| 1844 | fh->jpg_settings. |
| 1845 | odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; |
| 1846 | else |
| 1847 | buf->field = |
| 1848 | fh->jpg_settings. |
| 1849 | odd_even ? V4L2_FIELD_SEQ_TB : |
| 1850 | V4L2_FIELD_SEQ_BT; |
| 1851 | |
| 1852 | break; |
| 1853 | |
| 1854 | default: |
| 1855 | |
| 1856 | dprintk(5, |
| 1857 | KERN_ERR |
| 1858 | "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n", |
| 1859 | ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| 1860 | return -EINVAL; |
| 1861 | } |
| 1862 | |
| 1863 | buf->memory = V4L2_MEMORY_MMAP; |
| 1864 | buf->index = num; |
| 1865 | buf->m.offset = buf->length * num; |
| 1866 | |
| 1867 | return 0; |
| 1868 | } |
| 1869 | #endif |
| 1870 | |
| 1871 | static int |
| 1872 | zoran_set_norm (struct zoran *zr, |
| 1873 | int norm) /* VIDEO_MODE_* */ |
| 1874 | { |
| 1875 | int norm_encoder, on; |
| 1876 | |
| 1877 | if (zr->v4l_buffers.active != ZORAN_FREE || |
| 1878 | zr->jpg_buffers.active != ZORAN_FREE) { |
| 1879 | dprintk(1, |
| 1880 | KERN_WARNING |
| 1881 | "%s: set_norm() called while in playback/capture mode\n", |
| 1882 | ZR_DEVNAME(zr)); |
| 1883 | return -EBUSY; |
| 1884 | } |
| 1885 | |
| 1886 | if (lock_norm && norm != zr->norm) { |
| 1887 | if (lock_norm > 1) { |
| 1888 | dprintk(1, |
| 1889 | KERN_WARNING |
| 1890 | "%s: set_norm() - TV standard is locked, can not switch norm\n", |
| 1891 | ZR_DEVNAME(zr)); |
| 1892 | return -EPERM; |
| 1893 | } else { |
| 1894 | dprintk(1, |
| 1895 | KERN_WARNING |
| 1896 | "%s: set_norm() - TV standard is locked, norm was not changed\n", |
| 1897 | ZR_DEVNAME(zr)); |
| 1898 | norm = zr->norm; |
| 1899 | } |
| 1900 | } |
| 1901 | |
| 1902 | if (norm != VIDEO_MODE_AUTO && |
| 1903 | (norm < 0 || norm >= zr->card.norms || |
| 1904 | !zr->card.tvn[norm])) { |
| 1905 | dprintk(1, |
| 1906 | KERN_ERR "%s: set_norm() - unsupported norm %d\n", |
| 1907 | ZR_DEVNAME(zr), norm); |
| 1908 | return -EINVAL; |
| 1909 | } |
| 1910 | |
| 1911 | if (norm == VIDEO_MODE_AUTO) { |
| 1912 | int status; |
| 1913 | |
| 1914 | /* if we have autodetect, ... */ |
| 1915 | struct video_decoder_capability caps; |
| 1916 | decoder_command(zr, DECODER_GET_CAPABILITIES, &caps); |
| 1917 | if (!(caps.flags & VIDEO_DECODER_AUTO)) { |
| 1918 | dprintk(1, KERN_ERR "%s: norm=auto unsupported\n", |
| 1919 | ZR_DEVNAME(zr)); |
| 1920 | return -EINVAL; |
| 1921 | } |
| 1922 | |
| 1923 | decoder_command(zr, DECODER_SET_NORM, &norm); |
| 1924 | |
| 1925 | /* let changes come into effect */ |
| 1926 | ssleep(2); |
| 1927 | |
| 1928 | decoder_command(zr, DECODER_GET_STATUS, &status); |
| 1929 | if (!(status & DECODER_STATUS_GOOD)) { |
| 1930 | dprintk(1, |
| 1931 | KERN_ERR |
| 1932 | "%s: set_norm() - no norm detected\n", |
| 1933 | ZR_DEVNAME(zr)); |
| 1934 | /* reset norm */ |
| 1935 | decoder_command(zr, DECODER_SET_NORM, &zr->norm); |
| 1936 | return -EIO; |
| 1937 | } |
| 1938 | |
| 1939 | if (status & DECODER_STATUS_NTSC) |
| 1940 | norm = VIDEO_MODE_NTSC; |
| 1941 | else if (status & DECODER_STATUS_SECAM) |
| 1942 | norm = VIDEO_MODE_SECAM; |
| 1943 | else |
| 1944 | norm = VIDEO_MODE_PAL; |
| 1945 | } |
| 1946 | zr->timing = zr->card.tvn[norm]; |
| 1947 | norm_encoder = norm; |
| 1948 | |
| 1949 | /* We switch overlay off and on since a change in the |
| 1950 | * norm needs different VFE settings */ |
| 1951 | on = zr->overlay_active && !zr->v4l_memgrab_active; |
| 1952 | if (on) |
| 1953 | zr36057_overlay(zr, 0); |
| 1954 | |
| 1955 | decoder_command(zr, DECODER_SET_NORM, &norm); |
| 1956 | encoder_command(zr, ENCODER_SET_NORM, &norm_encoder); |
| 1957 | |
| 1958 | if (on) |
| 1959 | zr36057_overlay(zr, 1); |
| 1960 | |
| 1961 | /* Make sure the changes come into effect */ |
| 1962 | zr->norm = norm; |
| 1963 | |
| 1964 | return 0; |
| 1965 | } |
| 1966 | |
| 1967 | static int |
| 1968 | zoran_set_input (struct zoran *zr, |
| 1969 | int input) |
| 1970 | { |
| 1971 | int realinput; |
| 1972 | |
| 1973 | if (input == zr->input) { |
| 1974 | return 0; |
| 1975 | } |
| 1976 | |
| 1977 | if (zr->v4l_buffers.active != ZORAN_FREE || |
| 1978 | zr->jpg_buffers.active != ZORAN_FREE) { |
| 1979 | dprintk(1, |
| 1980 | KERN_WARNING |
| 1981 | "%s: set_input() called while in playback/capture mode\n", |
| 1982 | ZR_DEVNAME(zr)); |
| 1983 | return -EBUSY; |
| 1984 | } |
| 1985 | |
| 1986 | if (input < 0 || input >= zr->card.inputs) { |
| 1987 | dprintk(1, |
| 1988 | KERN_ERR |
| 1989 | "%s: set_input() - unnsupported input %d\n", |
| 1990 | ZR_DEVNAME(zr), input); |
| 1991 | return -EINVAL; |
| 1992 | } |
| 1993 | |
| 1994 | realinput = zr->card.input[input].muxsel; |
| 1995 | zr->input = input; |
| 1996 | |
| 1997 | decoder_command(zr, DECODER_SET_INPUT, &realinput); |
| 1998 | |
| 1999 | return 0; |
| 2000 | } |
| 2001 | |
| 2002 | /* |
| 2003 | * ioctl routine |
| 2004 | */ |
| 2005 | |
| 2006 | static int |
| 2007 | zoran_do_ioctl (struct inode *inode, |
| 2008 | struct file *file, |
| 2009 | unsigned int cmd, |
| 2010 | void *arg) |
| 2011 | { |
| 2012 | struct zoran_fh *fh = file->private_data; |
| 2013 | struct zoran *zr = fh->zr; |
| 2014 | /* CAREFUL: used in multiple places here */ |
| 2015 | struct zoran_jpg_settings settings; |
| 2016 | |
| 2017 | /* we might have older buffers lying around... We don't want |
| 2018 | * to wait, but we do want to try cleaning them up ASAP. So |
| 2019 | * we try to obtain the lock and free them. If that fails, we |
| 2020 | * don't do anything and wait for the next turn. In the end, |
| 2021 | * zoran_close() or a new allocation will still free them... |
| 2022 | * This is just a 'the sooner the better' extra 'feature' |
| 2023 | * |
| 2024 | * We don't free the buffers right on munmap() because that |
| 2025 | * causes oopses (kfree() inside munmap() oopses for no |
| 2026 | * apparent reason - it's also not reproduceable in any way, |
| 2027 | * but moving the free code outside the munmap() handler fixes |
| 2028 | * all this... If someone knows why, please explain me (Ronald) |
| 2029 | */ |
| 2030 | if (!down_trylock(&zr->resource_lock)) { |
| 2031 | /* we obtained it! Let's try to free some things */ |
| 2032 | if (fh->jpg_buffers.ready_to_be_freed) |
| 2033 | jpg_fbuffer_free(file); |
| 2034 | if (fh->v4l_buffers.ready_to_be_freed) |
| 2035 | v4l_fbuffer_free(file); |
| 2036 | |
| 2037 | up(&zr->resource_lock); |
| 2038 | } |
| 2039 | |
| 2040 | switch (cmd) { |
| 2041 | |
| 2042 | case VIDIOCGCAP: |
| 2043 | { |
| 2044 | struct video_capability *vcap = arg; |
| 2045 | |
| 2046 | dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr)); |
| 2047 | |
| 2048 | memset(vcap, 0, sizeof(struct video_capability)); |
| 2049 | strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)); |
| 2050 | vcap->type = ZORAN_VID_TYPE; |
| 2051 | |
| 2052 | vcap->channels = zr->card.inputs; |
| 2053 | vcap->audios = 0; |
| 2054 | down(&zr->resource_lock); |
| 2055 | vcap->maxwidth = BUZ_MAX_WIDTH; |
| 2056 | vcap->maxheight = BUZ_MAX_HEIGHT; |
| 2057 | vcap->minwidth = BUZ_MIN_WIDTH; |
| 2058 | vcap->minheight = BUZ_MIN_HEIGHT; |
| 2059 | up(&zr->resource_lock); |
| 2060 | |
| 2061 | return 0; |
| 2062 | } |
| 2063 | break; |
| 2064 | |
| 2065 | case VIDIOCGCHAN: |
| 2066 | { |
| 2067 | struct video_channel *vchan = arg; |
| 2068 | int channel = vchan->channel; |
| 2069 | |
| 2070 | dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n", |
| 2071 | ZR_DEVNAME(zr), vchan->channel); |
| 2072 | |
| 2073 | memset(vchan, 0, sizeof(struct video_channel)); |
| 2074 | if (channel > zr->card.inputs || channel < 0) { |
| 2075 | dprintk(1, |
| 2076 | KERN_ERR |
| 2077 | "%s: VIDIOCGCHAN on not existing channel %d\n", |
| 2078 | ZR_DEVNAME(zr), channel); |
| 2079 | return -EINVAL; |
| 2080 | } |
| 2081 | |
| 2082 | strcpy(vchan->name, zr->card.input[channel].name); |
| 2083 | |
| 2084 | vchan->tuners = 0; |
| 2085 | vchan->flags = 0; |
| 2086 | vchan->type = VIDEO_TYPE_CAMERA; |
| 2087 | down(&zr->resource_lock); |
| 2088 | vchan->norm = zr->norm; |
| 2089 | up(&zr->resource_lock); |
| 2090 | vchan->channel = channel; |
| 2091 | |
| 2092 | return 0; |
| 2093 | } |
| 2094 | break; |
| 2095 | |
| 2096 | /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says: |
| 2097 | * |
| 2098 | * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input." |
| 2099 | * * ^^^^^^^ |
| 2100 | * * The famos BTTV driver has it implemented with a struct video_channel argument |
| 2101 | * * and we follow it for compatibility reasons |
| 2102 | * * |
| 2103 | * * BTW: this is the only way the user can set the norm! |
| 2104 | */ |
| 2105 | |
| 2106 | case VIDIOCSCHAN: |
| 2107 | { |
| 2108 | struct video_channel *vchan = arg; |
| 2109 | int res; |
| 2110 | |
| 2111 | dprintk(3, |
| 2112 | KERN_DEBUG |
| 2113 | "%s: VIDIOCSCHAN - channel=%d, norm=%d\n", |
| 2114 | ZR_DEVNAME(zr), vchan->channel, vchan->norm); |
| 2115 | |
| 2116 | down(&zr->resource_lock); |
| 2117 | if ((res = zoran_set_input(zr, vchan->channel))) |
| 2118 | goto schan_unlock_and_return; |
| 2119 | if ((res = zoran_set_norm(zr, vchan->norm))) |
| 2120 | goto schan_unlock_and_return; |
| 2121 | |
| 2122 | /* Make sure the changes come into effect */ |
| 2123 | res = wait_grab_pending(zr); |
| 2124 | schan_unlock_and_return: |
| 2125 | up(&zr->resource_lock); |
| 2126 | return res; |
| 2127 | } |
| 2128 | break; |
| 2129 | |
| 2130 | case VIDIOCGPICT: |
| 2131 | { |
| 2132 | struct video_picture *vpict = arg; |
| 2133 | |
| 2134 | dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr)); |
| 2135 | |
| 2136 | memset(vpict, 0, sizeof(struct video_picture)); |
| 2137 | down(&zr->resource_lock); |
| 2138 | vpict->hue = zr->hue; |
| 2139 | vpict->brightness = zr->brightness; |
| 2140 | vpict->contrast = zr->contrast; |
| 2141 | vpict->colour = zr->saturation; |
| 2142 | if (fh->overlay_settings.format) { |
| 2143 | vpict->depth = fh->overlay_settings.format->depth; |
| 2144 | vpict->palette = fh->overlay_settings.format->palette; |
| 2145 | } else { |
| 2146 | vpict->depth = 0; |
| 2147 | } |
| 2148 | up(&zr->resource_lock); |
| 2149 | |
| 2150 | return 0; |
| 2151 | } |
| 2152 | break; |
| 2153 | |
| 2154 | case VIDIOCSPICT: |
| 2155 | { |
| 2156 | struct video_picture *vpict = arg; |
| 2157 | int i; |
| 2158 | |
| 2159 | dprintk(3, |
| 2160 | KERN_DEBUG |
| 2161 | "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n", |
| 2162 | ZR_DEVNAME(zr), vpict->brightness, vpict->hue, |
| 2163 | vpict->colour, vpict->contrast, vpict->depth, |
| 2164 | vpict->palette); |
| 2165 | |
| 2166 | for (i = 0; i < zoran_num_formats; i++) { |
| 2167 | const struct zoran_format *fmt = &zoran_formats[i]; |
| 2168 | |
| 2169 | if (fmt->palette != -1 && |
| 2170 | fmt->flags & ZORAN_FORMAT_OVERLAY && |
| 2171 | fmt->palette == vpict->palette && |
| 2172 | fmt->depth == vpict->depth) |
| 2173 | break; |
| 2174 | } |
| 2175 | if (i == zoran_num_formats) { |
| 2176 | dprintk(1, |
| 2177 | KERN_ERR |
| 2178 | "%s: VIDIOCSPICT - Invalid palette %d\n", |
| 2179 | ZR_DEVNAME(zr), vpict->palette); |
| 2180 | return -EINVAL; |
| 2181 | } |
| 2182 | |
| 2183 | down(&zr->resource_lock); |
| 2184 | |
| 2185 | decoder_command(zr, DECODER_SET_PICTURE, vpict); |
| 2186 | |
| 2187 | zr->hue = vpict->hue; |
| 2188 | zr->contrast = vpict->contrast; |
| 2189 | zr->saturation = vpict->colour; |
| 2190 | zr->brightness = vpict->brightness; |
| 2191 | |
| 2192 | fh->overlay_settings.format = &zoran_formats[i]; |
| 2193 | |
| 2194 | up(&zr->resource_lock); |
| 2195 | |
| 2196 | return 0; |
| 2197 | } |
| 2198 | break; |
| 2199 | |
| 2200 | case VIDIOCCAPTURE: |
| 2201 | { |
| 2202 | int *on = arg, res; |
| 2203 | |
| 2204 | dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n", |
| 2205 | ZR_DEVNAME(zr), *on); |
| 2206 | |
| 2207 | down(&zr->resource_lock); |
| 2208 | res = setup_overlay(file, *on); |
| 2209 | up(&zr->resource_lock); |
| 2210 | |
| 2211 | return res; |
| 2212 | } |
| 2213 | break; |
| 2214 | |
| 2215 | case VIDIOCGWIN: |
| 2216 | { |
| 2217 | struct video_window *vwin = arg; |
| 2218 | |
| 2219 | dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr)); |
| 2220 | |
| 2221 | memset(vwin, 0, sizeof(struct video_window)); |
| 2222 | down(&zr->resource_lock); |
| 2223 | vwin->x = fh->overlay_settings.x; |
| 2224 | vwin->y = fh->overlay_settings.y; |
| 2225 | vwin->width = fh->overlay_settings.width; |
| 2226 | vwin->height = fh->overlay_settings.height; |
| 2227 | up(&zr->resource_lock); |
| 2228 | vwin->clipcount = 0; |
| 2229 | return 0; |
| 2230 | } |
| 2231 | break; |
| 2232 | |
| 2233 | case VIDIOCSWIN: |
| 2234 | { |
| 2235 | struct video_window *vwin = arg; |
| 2236 | int res; |
| 2237 | |
| 2238 | dprintk(3, |
| 2239 | KERN_DEBUG |
| 2240 | "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n", |
| 2241 | ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width, |
| 2242 | vwin->height, vwin->clipcount); |
| 2243 | |
| 2244 | down(&zr->resource_lock); |
| 2245 | res = |
| 2246 | setup_window(file, vwin->x, vwin->y, vwin->width, |
| 2247 | vwin->height, vwin->clips, |
| 2248 | vwin->clipcount, NULL); |
| 2249 | up(&zr->resource_lock); |
| 2250 | |
| 2251 | return res; |
| 2252 | } |
| 2253 | break; |
| 2254 | |
| 2255 | case VIDIOCGFBUF: |
| 2256 | { |
| 2257 | struct video_buffer *vbuf = arg; |
| 2258 | |
| 2259 | dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr)); |
| 2260 | |
| 2261 | down(&zr->resource_lock); |
| 2262 | *vbuf = zr->buffer; |
| 2263 | up(&zr->resource_lock); |
| 2264 | return 0; |
| 2265 | } |
| 2266 | break; |
| 2267 | |
| 2268 | case VIDIOCSFBUF: |
| 2269 | { |
| 2270 | struct video_buffer *vbuf = arg; |
| 2271 | int i, res = 0; |
| 2272 | |
| 2273 | dprintk(3, |
| 2274 | KERN_DEBUG |
| 2275 | "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n", |
| 2276 | ZR_DEVNAME(zr), vbuf->base, vbuf->width, |
| 2277 | vbuf->height, vbuf->depth, vbuf->bytesperline); |
| 2278 | |
| 2279 | for (i = 0; i < zoran_num_formats; i++) |
| 2280 | if (zoran_formats[i].depth == vbuf->depth) |
| 2281 | break; |
| 2282 | if (i == zoran_num_formats) { |
| 2283 | dprintk(1, |
| 2284 | KERN_ERR |
| 2285 | "%s: VIDIOCSFBUF - invalid fbuf depth %d\n", |
| 2286 | ZR_DEVNAME(zr), vbuf->depth); |
| 2287 | return -EINVAL; |
| 2288 | } |
| 2289 | |
| 2290 | down(&zr->resource_lock); |
| 2291 | res = |
| 2292 | setup_fbuffer(file, vbuf->base, &zoran_formats[i], |
| 2293 | vbuf->width, vbuf->height, |
| 2294 | vbuf->bytesperline); |
| 2295 | up(&zr->resource_lock); |
| 2296 | |
| 2297 | return res; |
| 2298 | } |
| 2299 | break; |
| 2300 | |
| 2301 | case VIDIOCSYNC: |
| 2302 | { |
| 2303 | int *frame = arg, res; |
| 2304 | |
| 2305 | dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n", |
| 2306 | ZR_DEVNAME(zr), *frame); |
| 2307 | |
| 2308 | down(&zr->resource_lock); |
| 2309 | res = v4l_sync(file, *frame); |
| 2310 | up(&zr->resource_lock); |
| 2311 | if (!res) |
| 2312 | zr->v4l_sync_tail++; |
| 2313 | return res; |
| 2314 | } |
| 2315 | break; |
| 2316 | |
| 2317 | case VIDIOCMCAPTURE: |
| 2318 | { |
| 2319 | struct video_mmap *vmap = arg; |
| 2320 | int res; |
| 2321 | |
| 2322 | dprintk(3, |
| 2323 | KERN_DEBUG |
| 2324 | "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n", |
| 2325 | ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height, |
| 2326 | vmap->format); |
| 2327 | |
| 2328 | down(&zr->resource_lock); |
| 2329 | res = v4l_grab(file, vmap); |
| 2330 | up(&zr->resource_lock); |
| 2331 | return res; |
| 2332 | } |
| 2333 | break; |
| 2334 | |
| 2335 | case VIDIOCGMBUF: |
| 2336 | { |
| 2337 | struct video_mbuf *vmbuf = arg; |
| 2338 | int i, res = 0; |
| 2339 | |
| 2340 | dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr)); |
| 2341 | |
| 2342 | vmbuf->size = |
| 2343 | fh->v4l_buffers.num_buffers * |
| 2344 | fh->v4l_buffers.buffer_size; |
| 2345 | vmbuf->frames = fh->v4l_buffers.num_buffers; |
| 2346 | for (i = 0; i < vmbuf->frames; i++) { |
| 2347 | vmbuf->offsets[i] = |
| 2348 | i * fh->v4l_buffers.buffer_size; |
| 2349 | } |
| 2350 | |
| 2351 | down(&zr->resource_lock); |
| 2352 | |
| 2353 | if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| 2354 | dprintk(1, |
| 2355 | KERN_ERR |
| 2356 | "%s: VIDIOCGMBUF - buffers already allocated\n", |
| 2357 | ZR_DEVNAME(zr)); |
| 2358 | res = -EINVAL; |
| 2359 | goto v4l1reqbuf_unlock_and_return; |
| 2360 | } |
| 2361 | |
| 2362 | if (v4l_fbuffer_alloc(file)) { |
| 2363 | res = -ENOMEM; |
| 2364 | goto v4l1reqbuf_unlock_and_return; |
| 2365 | } |
| 2366 | |
| 2367 | /* The next mmap will map the V4L buffers */ |
| 2368 | fh->map_mode = ZORAN_MAP_MODE_RAW; |
| 2369 | v4l1reqbuf_unlock_and_return: |
| 2370 | up(&zr->resource_lock); |
| 2371 | |
| 2372 | return res; |
| 2373 | } |
| 2374 | break; |
| 2375 | |
| 2376 | case VIDIOCGUNIT: |
| 2377 | { |
| 2378 | struct video_unit *vunit = arg; |
| 2379 | |
| 2380 | dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr)); |
| 2381 | |
| 2382 | vunit->video = zr->video_dev->minor; |
| 2383 | vunit->vbi = VIDEO_NO_UNIT; |
| 2384 | vunit->radio = VIDEO_NO_UNIT; |
| 2385 | vunit->audio = VIDEO_NO_UNIT; |
| 2386 | vunit->teletext = VIDEO_NO_UNIT; |
| 2387 | |
| 2388 | return 0; |
| 2389 | } |
| 2390 | break; |
| 2391 | |
| 2392 | /* |
| 2393 | * RJ: In principal we could support subcaptures for V4L grabbing. |
| 2394 | * Not even the famous BTTV driver has them, however. |
| 2395 | * If there should be a strong demand, one could consider |
| 2396 | * to implement them. |
| 2397 | */ |
| 2398 | case VIDIOCGCAPTURE: |
| 2399 | { |
| 2400 | dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n", |
| 2401 | ZR_DEVNAME(zr)); |
| 2402 | return -EINVAL; |
| 2403 | } |
| 2404 | break; |
| 2405 | |
| 2406 | case VIDIOCSCAPTURE: |
| 2407 | { |
| 2408 | dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n", |
| 2409 | ZR_DEVNAME(zr)); |
| 2410 | return -EINVAL; |
| 2411 | } |
| 2412 | break; |
| 2413 | |
| 2414 | case BUZIOC_G_PARAMS: |
| 2415 | { |
| 2416 | struct zoran_params *bparams = arg; |
| 2417 | |
| 2418 | dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr)); |
| 2419 | |
| 2420 | memset(bparams, 0, sizeof(struct zoran_params)); |
| 2421 | bparams->major_version = MAJOR_VERSION; |
| 2422 | bparams->minor_version = MINOR_VERSION; |
| 2423 | |
| 2424 | down(&zr->resource_lock); |
| 2425 | |
| 2426 | bparams->norm = zr->norm; |
| 2427 | bparams->input = zr->input; |
| 2428 | |
| 2429 | bparams->decimation = fh->jpg_settings.decimation; |
| 2430 | bparams->HorDcm = fh->jpg_settings.HorDcm; |
| 2431 | bparams->VerDcm = fh->jpg_settings.VerDcm; |
| 2432 | bparams->TmpDcm = fh->jpg_settings.TmpDcm; |
| 2433 | bparams->field_per_buff = fh->jpg_settings.field_per_buff; |
| 2434 | bparams->img_x = fh->jpg_settings.img_x; |
| 2435 | bparams->img_y = fh->jpg_settings.img_y; |
| 2436 | bparams->img_width = fh->jpg_settings.img_width; |
| 2437 | bparams->img_height = fh->jpg_settings.img_height; |
| 2438 | bparams->odd_even = fh->jpg_settings.odd_even; |
| 2439 | |
| 2440 | bparams->quality = fh->jpg_settings.jpg_comp.quality; |
| 2441 | bparams->APPn = fh->jpg_settings.jpg_comp.APPn; |
| 2442 | bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len; |
| 2443 | memcpy(bparams->APP_data, |
| 2444 | fh->jpg_settings.jpg_comp.APP_data, |
| 2445 | sizeof(bparams->APP_data)); |
| 2446 | bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len; |
| 2447 | memcpy(bparams->COM_data, |
| 2448 | fh->jpg_settings.jpg_comp.COM_data, |
| 2449 | sizeof(bparams->COM_data)); |
| 2450 | bparams->jpeg_markers = |
| 2451 | fh->jpg_settings.jpg_comp.jpeg_markers; |
| 2452 | |
| 2453 | up(&zr->resource_lock); |
| 2454 | |
| 2455 | bparams->VFIFO_FB = 0; |
| 2456 | |
| 2457 | return 0; |
| 2458 | } |
| 2459 | break; |
| 2460 | |
| 2461 | case BUZIOC_S_PARAMS: |
| 2462 | { |
| 2463 | struct zoran_params *bparams = arg; |
| 2464 | int res = 0; |
| 2465 | |
| 2466 | dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr)); |
| 2467 | |
| 2468 | settings.decimation = bparams->decimation; |
| 2469 | settings.HorDcm = bparams->HorDcm; |
| 2470 | settings.VerDcm = bparams->VerDcm; |
| 2471 | settings.TmpDcm = bparams->TmpDcm; |
| 2472 | settings.field_per_buff = bparams->field_per_buff; |
| 2473 | settings.img_x = bparams->img_x; |
| 2474 | settings.img_y = bparams->img_y; |
| 2475 | settings.img_width = bparams->img_width; |
| 2476 | settings.img_height = bparams->img_height; |
| 2477 | settings.odd_even = bparams->odd_even; |
| 2478 | |
| 2479 | settings.jpg_comp.quality = bparams->quality; |
| 2480 | settings.jpg_comp.APPn = bparams->APPn; |
| 2481 | settings.jpg_comp.APP_len = bparams->APP_len; |
| 2482 | memcpy(settings.jpg_comp.APP_data, bparams->APP_data, |
| 2483 | sizeof(bparams->APP_data)); |
| 2484 | settings.jpg_comp.COM_len = bparams->COM_len; |
| 2485 | memcpy(settings.jpg_comp.COM_data, bparams->COM_data, |
| 2486 | sizeof(bparams->COM_data)); |
| 2487 | settings.jpg_comp.jpeg_markers = bparams->jpeg_markers; |
| 2488 | |
| 2489 | down(&zr->resource_lock); |
| 2490 | |
| 2491 | if (zr->codec_mode != BUZ_MODE_IDLE) { |
| 2492 | dprintk(1, |
| 2493 | KERN_ERR |
| 2494 | "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n", |
| 2495 | ZR_DEVNAME(zr)); |
| 2496 | res = -EINVAL; |
| 2497 | goto sparams_unlock_and_return; |
| 2498 | } |
| 2499 | |
| 2500 | /* Check the params first before overwriting our |
| 2501 | * nternal values */ |
| 2502 | if (zoran_check_jpg_settings(zr, &settings)) { |
| 2503 | res = -EINVAL; |
| 2504 | goto sparams_unlock_and_return; |
| 2505 | } |
| 2506 | |
| 2507 | fh->jpg_settings = settings; |
| 2508 | sparams_unlock_and_return: |
| 2509 | up(&zr->resource_lock); |
| 2510 | |
| 2511 | return res; |
| 2512 | } |
| 2513 | break; |
| 2514 | |
| 2515 | case BUZIOC_REQBUFS: |
| 2516 | { |
| 2517 | struct zoran_requestbuffers *breq = arg; |
| 2518 | int res = 0; |
| 2519 | |
| 2520 | dprintk(3, |
| 2521 | KERN_DEBUG |
| 2522 | "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n", |
| 2523 | ZR_DEVNAME(zr), breq->count, breq->size); |
| 2524 | |
| 2525 | /* Enforce reasonable lower and upper limits */ |
| 2526 | if (breq->count < 4) |
| 2527 | breq->count = 4; /* Could be choosen smaller */ |
| 2528 | if (breq->count > jpg_nbufs) |
| 2529 | breq->count = jpg_nbufs; |
| 2530 | breq->size = PAGE_ALIGN(breq->size); |
| 2531 | if (breq->size < 8192) |
| 2532 | breq->size = 8192; /* Arbitrary */ |
| 2533 | /* breq->size is limited by 1 page for the stat_com |
| 2534 | * tables to a Maximum of 2 MB */ |
| 2535 | if (breq->size > jpg_bufsize) |
| 2536 | breq->size = jpg_bufsize; |
| 2537 | if (fh->jpg_buffers.need_contiguous && |
| 2538 | breq->size > MAX_KMALLOC_MEM) |
| 2539 | breq->size = MAX_KMALLOC_MEM; |
| 2540 | |
| 2541 | down(&zr->resource_lock); |
| 2542 | |
| 2543 | if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| 2544 | dprintk(1, |
| 2545 | KERN_ERR |
| 2546 | "%s: BUZIOC_REQBUFS - buffers allready allocated\n", |
| 2547 | ZR_DEVNAME(zr)); |
| 2548 | res = -EBUSY; |
| 2549 | goto jpgreqbuf_unlock_and_return; |
| 2550 | } |
| 2551 | |
| 2552 | fh->jpg_buffers.num_buffers = breq->count; |
| 2553 | fh->jpg_buffers.buffer_size = breq->size; |
| 2554 | |
| 2555 | if (jpg_fbuffer_alloc(file)) { |
| 2556 | res = -ENOMEM; |
| 2557 | goto jpgreqbuf_unlock_and_return; |
| 2558 | } |
| 2559 | |
| 2560 | /* The next mmap will map the MJPEG buffers - could |
| 2561 | * also be *_PLAY, but it doesn't matter here */ |
| 2562 | fh->map_mode = ZORAN_MAP_MODE_JPG_REC; |
| 2563 | jpgreqbuf_unlock_and_return: |
| 2564 | up(&zr->resource_lock); |
| 2565 | |
| 2566 | return res; |
| 2567 | } |
| 2568 | break; |
| 2569 | |
| 2570 | case BUZIOC_QBUF_CAPT: |
| 2571 | { |
| 2572 | int *frame = arg, res; |
| 2573 | |
| 2574 | dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n", |
| 2575 | ZR_DEVNAME(zr), *frame); |
| 2576 | |
| 2577 | down(&zr->resource_lock); |
| 2578 | res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS); |
| 2579 | up(&zr->resource_lock); |
| 2580 | |
| 2581 | return res; |
| 2582 | } |
| 2583 | break; |
| 2584 | |
| 2585 | case BUZIOC_QBUF_PLAY: |
| 2586 | { |
| 2587 | int *frame = arg, res; |
| 2588 | |
| 2589 | dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n", |
| 2590 | ZR_DEVNAME(zr), *frame); |
| 2591 | |
| 2592 | down(&zr->resource_lock); |
| 2593 | res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS); |
| 2594 | up(&zr->resource_lock); |
| 2595 | |
| 2596 | return res; |
| 2597 | } |
| 2598 | break; |
| 2599 | |
| 2600 | case BUZIOC_SYNC: |
| 2601 | { |
| 2602 | struct zoran_sync *bsync = arg; |
| 2603 | int res; |
| 2604 | |
| 2605 | dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr)); |
| 2606 | |
| 2607 | down(&zr->resource_lock); |
| 2608 | res = jpg_sync(file, bsync); |
| 2609 | up(&zr->resource_lock); |
| 2610 | |
| 2611 | return res; |
| 2612 | } |
| 2613 | break; |
| 2614 | |
| 2615 | case BUZIOC_G_STATUS: |
| 2616 | { |
| 2617 | struct zoran_status *bstat = arg; |
| 2618 | int norm, input, status, res = 0; |
| 2619 | |
| 2620 | dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr)); |
| 2621 | |
| 2622 | if (zr->codec_mode != BUZ_MODE_IDLE) { |
| 2623 | dprintk(1, |
| 2624 | KERN_ERR |
| 2625 | "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n", |
| 2626 | ZR_DEVNAME(zr)); |
| 2627 | return -EINVAL; |
| 2628 | } |
| 2629 | |
| 2630 | input = zr->card.input[bstat->input].muxsel; |
| 2631 | norm = VIDEO_MODE_AUTO; |
| 2632 | |
| 2633 | down(&zr->resource_lock); |
| 2634 | |
| 2635 | if (zr->codec_mode != BUZ_MODE_IDLE) { |
| 2636 | dprintk(1, |
| 2637 | KERN_ERR |
| 2638 | "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n", |
| 2639 | ZR_DEVNAME(zr)); |
| 2640 | res = -EINVAL; |
| 2641 | goto gstat_unlock_and_return; |
| 2642 | } |
| 2643 | |
| 2644 | decoder_command(zr, DECODER_SET_INPUT, &input); |
| 2645 | decoder_command(zr, DECODER_SET_NORM, &norm); |
| 2646 | |
| 2647 | /* sleep 1 second */ |
| 2648 | ssleep(1); |
| 2649 | |
| 2650 | /* Get status of video decoder */ |
| 2651 | decoder_command(zr, DECODER_GET_STATUS, &status); |
| 2652 | |
| 2653 | /* restore previous input and norm */ |
| 2654 | input = zr->card.input[zr->input].muxsel; |
| 2655 | decoder_command(zr, DECODER_SET_INPUT, &input); |
| 2656 | decoder_command(zr, DECODER_SET_NORM, &zr->norm); |
| 2657 | gstat_unlock_and_return: |
| 2658 | up(&zr->resource_lock); |
| 2659 | |
| 2660 | if (!res) { |
| 2661 | bstat->signal = |
| 2662 | (status & DECODER_STATUS_GOOD) ? 1 : 0; |
| 2663 | if (status & DECODER_STATUS_NTSC) |
| 2664 | bstat->norm = VIDEO_MODE_NTSC; |
| 2665 | else if (status & DECODER_STATUS_SECAM) |
| 2666 | bstat->norm = VIDEO_MODE_SECAM; |
| 2667 | else |
| 2668 | bstat->norm = VIDEO_MODE_PAL; |
| 2669 | |
| 2670 | bstat->color = |
| 2671 | (status & DECODER_STATUS_COLOR) ? 1 : 0; |
| 2672 | } |
| 2673 | |
| 2674 | return res; |
| 2675 | } |
| 2676 | break; |
| 2677 | |
| 2678 | #ifdef HAVE_V4L2 |
| 2679 | |
| 2680 | /* The new video4linux2 capture interface - much nicer than video4linux1, since |
| 2681 | * it allows for integrating the JPEG capturing calls inside standard v4l2 |
| 2682 | */ |
| 2683 | |
| 2684 | case VIDIOC_QUERYCAP: |
| 2685 | { |
| 2686 | struct v4l2_capability *cap = arg; |
| 2687 | |
| 2688 | dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr)); |
| 2689 | |
| 2690 | memset(cap, 0, sizeof(*cap)); |
| 2691 | strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)); |
| 2692 | strncpy(cap->driver, "zoran", sizeof(cap->driver)); |
| 2693 | snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", |
| 2694 | pci_name(zr->pci_dev)); |
| 2695 | cap->version = |
| 2696 | KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION, |
| 2697 | RELEASE_VERSION); |
| 2698 | cap->capabilities = ZORAN_V4L2_VID_FLAGS; |
| 2699 | |
| 2700 | return 0; |
| 2701 | } |
| 2702 | break; |
| 2703 | |
| 2704 | case VIDIOC_ENUM_FMT: |
| 2705 | { |
| 2706 | struct v4l2_fmtdesc *fmt = arg; |
| 2707 | int index = fmt->index, num = -1, i, flag = 0, type = |
| 2708 | fmt->type; |
| 2709 | |
| 2710 | dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n", |
| 2711 | ZR_DEVNAME(zr), fmt->index); |
| 2712 | |
| 2713 | switch (fmt->type) { |
| 2714 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 2715 | flag = ZORAN_FORMAT_CAPTURE; |
| 2716 | break; |
| 2717 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| 2718 | flag = ZORAN_FORMAT_PLAYBACK; |
| 2719 | break; |
| 2720 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 2721 | flag = ZORAN_FORMAT_OVERLAY; |
| 2722 | break; |
| 2723 | default: |
| 2724 | dprintk(1, |
| 2725 | KERN_ERR |
| 2726 | "%s: VIDIOC_ENUM_FMT - unknown type %d\n", |
| 2727 | ZR_DEVNAME(zr), fmt->type); |
| 2728 | return -EINVAL; |
| 2729 | } |
| 2730 | |
| 2731 | for (i = 0; i < zoran_num_formats; i++) { |
| 2732 | if (zoran_formats[i].flags & flag) |
| 2733 | num++; |
| 2734 | if (num == fmt->index) |
| 2735 | break; |
| 2736 | } |
| 2737 | if (fmt->index < 0 /* late, but not too late */ || |
| 2738 | i == zoran_num_formats) |
| 2739 | return -EINVAL; |
| 2740 | |
| 2741 | memset(fmt, 0, sizeof(*fmt)); |
| 2742 | fmt->index = index; |
| 2743 | fmt->type = type; |
| 2744 | strncpy(fmt->description, zoran_formats[i].name, 31); |
| 2745 | fmt->pixelformat = zoran_formats[i].fourcc; |
| 2746 | if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) |
| 2747 | fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; |
| 2748 | |
| 2749 | return 0; |
| 2750 | } |
| 2751 | break; |
| 2752 | |
| 2753 | case VIDIOC_G_FMT: |
| 2754 | { |
| 2755 | struct v4l2_format *fmt = arg; |
| 2756 | int type = fmt->type; |
| 2757 | |
| 2758 | dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr)); |
| 2759 | |
| 2760 | memset(fmt, 0, sizeof(*fmt)); |
| 2761 | fmt->type = type; |
| 2762 | |
| 2763 | switch (fmt->type) { |
| 2764 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 2765 | |
| 2766 | down(&zr->resource_lock); |
| 2767 | |
| 2768 | fmt->fmt.win.w.left = fh->overlay_settings.x; |
| 2769 | fmt->fmt.win.w.top = fh->overlay_settings.y; |
| 2770 | fmt->fmt.win.w.width = fh->overlay_settings.width; |
| 2771 | fmt->fmt.win.w.height = |
| 2772 | fh->overlay_settings.height; |
| 2773 | if (fh->overlay_settings.width * 2 > |
| 2774 | BUZ_MAX_HEIGHT) |
| 2775 | fmt->fmt.win.field = V4L2_FIELD_INTERLACED; |
| 2776 | else |
| 2777 | fmt->fmt.win.field = V4L2_FIELD_TOP; |
| 2778 | |
| 2779 | up(&zr->resource_lock); |
| 2780 | |
| 2781 | break; |
| 2782 | |
| 2783 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 2784 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| 2785 | |
| 2786 | down(&zr->resource_lock); |
| 2787 | |
| 2788 | if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| 2789 | fh->map_mode == ZORAN_MAP_MODE_RAW) { |
| 2790 | |
| 2791 | fmt->fmt.pix.width = |
| 2792 | fh->v4l_settings.width; |
| 2793 | fmt->fmt.pix.height = |
| 2794 | fh->v4l_settings.height; |
| 2795 | fmt->fmt.pix.sizeimage = |
| 2796 | fh->v4l_buffers.buffer_size; |
| 2797 | fmt->fmt.pix.pixelformat = |
| 2798 | fh->v4l_settings.format->fourcc; |
| 2799 | fmt->fmt.pix.colorspace = |
| 2800 | fh->v4l_settings.format->colorspace; |
| 2801 | fmt->fmt.pix.bytesperline = 0; |
| 2802 | if (BUZ_MAX_HEIGHT < |
| 2803 | (fh->v4l_settings.height * 2)) |
| 2804 | fmt->fmt.pix.field = |
| 2805 | V4L2_FIELD_INTERLACED; |
| 2806 | else |
| 2807 | fmt->fmt.pix.field = |
| 2808 | V4L2_FIELD_TOP; |
| 2809 | |
| 2810 | } else { |
| 2811 | |
| 2812 | fmt->fmt.pix.width = |
| 2813 | fh->jpg_settings.img_width / |
| 2814 | fh->jpg_settings.HorDcm; |
| 2815 | fmt->fmt.pix.height = |
| 2816 | fh->jpg_settings.img_height / |
| 2817 | (fh->jpg_settings.VerDcm * |
| 2818 | fh->jpg_settings.TmpDcm); |
| 2819 | fmt->fmt.pix.sizeimage = |
| 2820 | zoran_v4l2_calc_bufsize(&fh-> |
| 2821 | jpg_settings); |
| 2822 | fmt->fmt.pix.pixelformat = |
| 2823 | V4L2_PIX_FMT_MJPEG; |
| 2824 | if (fh->jpg_settings.TmpDcm == 1) |
| 2825 | fmt->fmt.pix.field = |
| 2826 | (fh->jpg_settings. |
| 2827 | odd_even ? V4L2_FIELD_SEQ_BT : |
| 2828 | V4L2_FIELD_SEQ_BT); |
| 2829 | else |
| 2830 | fmt->fmt.pix.field = |
| 2831 | (fh->jpg_settings. |
| 2832 | odd_even ? V4L2_FIELD_TOP : |
| 2833 | V4L2_FIELD_BOTTOM); |
| 2834 | |
| 2835 | fmt->fmt.pix.bytesperline = 0; |
| 2836 | fmt->fmt.pix.colorspace = |
| 2837 | V4L2_COLORSPACE_SMPTE170M; |
| 2838 | } |
| 2839 | |
| 2840 | up(&zr->resource_lock); |
| 2841 | |
| 2842 | break; |
| 2843 | |
| 2844 | default: |
| 2845 | dprintk(1, |
| 2846 | KERN_ERR |
| 2847 | "%s: VIDIOC_G_FMT - unsupported type %d\n", |
| 2848 | ZR_DEVNAME(zr), fmt->type); |
| 2849 | return -EINVAL; |
| 2850 | } |
| 2851 | return 0; |
| 2852 | } |
| 2853 | break; |
| 2854 | |
| 2855 | case VIDIOC_S_FMT: |
| 2856 | { |
| 2857 | struct v4l2_format *fmt = arg; |
| 2858 | int i, res = 0; |
| 2859 | __u32 printformat; |
| 2860 | |
| 2861 | dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ", |
| 2862 | ZR_DEVNAME(zr), fmt->type); |
| 2863 | |
| 2864 | switch (fmt->type) { |
| 2865 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 2866 | |
| 2867 | dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", |
| 2868 | fmt->fmt.win.w.left, fmt->fmt.win.w.top, |
| 2869 | fmt->fmt.win.w.width, |
| 2870 | fmt->fmt.win.w.height, |
| 2871 | fmt->fmt.win.clipcount, |
| 2872 | fmt->fmt.win.bitmap); |
| 2873 | down(&zr->resource_lock); |
| 2874 | res = |
| 2875 | setup_window(file, fmt->fmt.win.w.left, |
| 2876 | fmt->fmt.win.w.top, |
| 2877 | fmt->fmt.win.w.width, |
| 2878 | fmt->fmt.win.w.height, |
| 2879 | (struct video_clip __user *) |
| 2880 | fmt->fmt.win.clips, |
| 2881 | fmt->fmt.win.clipcount, |
| 2882 | fmt->fmt.win.bitmap); |
| 2883 | up(&zr->resource_lock); |
| 2884 | return res; |
| 2885 | break; |
| 2886 | |
| 2887 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 2888 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| 2889 | |
| 2890 | printformat = |
| 2891 | __cpu_to_le32(fmt->fmt.pix.pixelformat); |
| 2892 | dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n", |
| 2893 | fmt->fmt.pix.width, fmt->fmt.pix.height, |
| 2894 | fmt->fmt.pix.pixelformat, |
| 2895 | (char *) &printformat); |
| 2896 | |
| 2897 | if (fmt->fmt.pix.bytesperline > 0) { |
| 2898 | dprintk(5, |
| 2899 | KERN_ERR "%s: bpl not supported\n", |
| 2900 | ZR_DEVNAME(zr)); |
| 2901 | return -EINVAL; |
| 2902 | } |
| 2903 | |
| 2904 | /* we can be requested to do JPEG/raw playback/capture */ |
| 2905 | if (! |
| 2906 | (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 2907 | (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 2908 | fmt->fmt.pix.pixelformat == |
| 2909 | V4L2_PIX_FMT_MJPEG))) { |
| 2910 | dprintk(1, |
| 2911 | KERN_ERR |
| 2912 | "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n", |
| 2913 | ZR_DEVNAME(zr), fmt->type, |
| 2914 | fmt->fmt.pix.pixelformat, |
| 2915 | (char *) &printformat); |
| 2916 | return -EINVAL; |
| 2917 | } |
| 2918 | |
| 2919 | if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { |
| 2920 | down(&zr->resource_lock); |
| 2921 | |
| 2922 | settings = fh->jpg_settings; |
| 2923 | |
| 2924 | if (fh->v4l_buffers.allocated || |
| 2925 | fh->jpg_buffers.allocated) { |
| 2926 | dprintk(1, |
| 2927 | KERN_ERR |
| 2928 | "%s: VIDIOC_S_FMT - cannot change capture mode\n", |
| 2929 | ZR_DEVNAME(zr)); |
| 2930 | res = -EBUSY; |
| 2931 | goto sfmtjpg_unlock_and_return; |
| 2932 | } |
| 2933 | |
| 2934 | /* we actually need to set 'real' parameters now */ |
| 2935 | if ((fmt->fmt.pix.height * 2) > |
| 2936 | BUZ_MAX_HEIGHT) |
| 2937 | settings.TmpDcm = 1; |
| 2938 | else |
| 2939 | settings.TmpDcm = 2; |
| 2940 | settings.decimation = 0; |
| 2941 | if (fmt->fmt.pix.height <= |
| 2942 | fh->jpg_settings.img_height / 2) |
| 2943 | settings.VerDcm = 2; |
| 2944 | else |
| 2945 | settings.VerDcm = 1; |
| 2946 | if (fmt->fmt.pix.width <= |
| 2947 | fh->jpg_settings.img_width / 4) |
| 2948 | settings.HorDcm = 4; |
| 2949 | else if (fmt->fmt.pix.width <= |
| 2950 | fh->jpg_settings.img_width / 2) |
| 2951 | settings.HorDcm = 2; |
| 2952 | else |
| 2953 | settings.HorDcm = 1; |
| 2954 | if (settings.TmpDcm == 1) |
| 2955 | settings.field_per_buff = 2; |
| 2956 | else |
| 2957 | settings.field_per_buff = 1; |
| 2958 | |
| 2959 | /* check */ |
| 2960 | if ((res = |
| 2961 | zoran_check_jpg_settings(zr, |
| 2962 | &settings))) |
| 2963 | goto sfmtjpg_unlock_and_return; |
| 2964 | |
| 2965 | /* it's ok, so set them */ |
| 2966 | fh->jpg_settings = settings; |
| 2967 | |
| 2968 | /* tell the user what we actually did */ |
| 2969 | fmt->fmt.pix.width = |
| 2970 | settings.img_width / settings.HorDcm; |
| 2971 | fmt->fmt.pix.height = |
| 2972 | settings.img_height * 2 / |
| 2973 | (settings.TmpDcm * settings.VerDcm); |
| 2974 | if (settings.TmpDcm == 1) |
| 2975 | fmt->fmt.pix.field = |
| 2976 | (fh->jpg_settings. |
| 2977 | odd_even ? V4L2_FIELD_SEQ_TB : |
| 2978 | V4L2_FIELD_SEQ_BT); |
| 2979 | else |
| 2980 | fmt->fmt.pix.field = |
| 2981 | (fh->jpg_settings. |
| 2982 | odd_even ? V4L2_FIELD_TOP : |
| 2983 | V4L2_FIELD_BOTTOM); |
| 2984 | fh->jpg_buffers.buffer_size = |
| 2985 | zoran_v4l2_calc_bufsize(&fh-> |
| 2986 | jpg_settings); |
| 2987 | fmt->fmt.pix.sizeimage = |
| 2988 | fh->jpg_buffers.buffer_size; |
| 2989 | |
| 2990 | /* we hereby abuse this variable to show that |
| 2991 | * we're gonna do mjpeg capture */ |
| 2992 | fh->map_mode = |
| 2993 | (fmt->type == |
| 2994 | V4L2_BUF_TYPE_VIDEO_CAPTURE) ? |
| 2995 | ZORAN_MAP_MODE_JPG_REC : |
| 2996 | ZORAN_MAP_MODE_JPG_PLAY; |
| 2997 | sfmtjpg_unlock_and_return: |
| 2998 | up(&zr->resource_lock); |
| 2999 | } else { |
| 3000 | for (i = 0; i < zoran_num_formats; i++) |
| 3001 | if (fmt->fmt.pix.pixelformat == |
| 3002 | zoran_formats[i].fourcc) |
| 3003 | break; |
| 3004 | if (i == zoran_num_formats) { |
| 3005 | dprintk(1, |
| 3006 | KERN_ERR |
| 3007 | "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n", |
| 3008 | ZR_DEVNAME(zr), |
| 3009 | fmt->fmt.pix.pixelformat, |
| 3010 | (char *) &printformat); |
| 3011 | return -EINVAL; |
| 3012 | } |
| 3013 | down(&zr->resource_lock); |
| 3014 | if (fh->jpg_buffers.allocated || |
| 3015 | (fh->v4l_buffers.allocated && |
| 3016 | fh->v4l_buffers.active != |
| 3017 | ZORAN_FREE)) { |
| 3018 | dprintk(1, |
| 3019 | KERN_ERR |
| 3020 | "%s: VIDIOC_S_FMT - cannot change capture mode\n", |
| 3021 | ZR_DEVNAME(zr)); |
| 3022 | res = -EBUSY; |
| 3023 | goto sfmtv4l_unlock_and_return; |
| 3024 | } |
| 3025 | if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) |
| 3026 | fmt->fmt.pix.height = |
| 3027 | BUZ_MAX_HEIGHT; |
| 3028 | if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) |
| 3029 | fmt->fmt.pix.width = BUZ_MAX_WIDTH; |
| 3030 | |
| 3031 | if ((res = |
| 3032 | zoran_v4l_set_format(file, |
| 3033 | fmt->fmt.pix. |
| 3034 | width, |
| 3035 | fmt->fmt.pix. |
| 3036 | height, |
| 3037 | &zoran_formats |
| 3038 | [i]))) |
| 3039 | goto sfmtv4l_unlock_and_return; |
| 3040 | |
| 3041 | /* tell the user the |
| 3042 | * results/missing stuff */ |
| 3043 | fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size /*zr->gbpl * zr->gheight */ |
| 3044 | ; |
| 3045 | if (BUZ_MAX_HEIGHT < |
| 3046 | (fh->v4l_settings.height * 2)) |
| 3047 | fmt->fmt.pix.field = |
| 3048 | V4L2_FIELD_INTERLACED; |
| 3049 | else |
| 3050 | fmt->fmt.pix.field = |
| 3051 | V4L2_FIELD_TOP; |
| 3052 | |
| 3053 | fh->map_mode = ZORAN_MAP_MODE_RAW; |
| 3054 | sfmtv4l_unlock_and_return: |
| 3055 | up(&zr->resource_lock); |
| 3056 | } |
| 3057 | |
| 3058 | break; |
| 3059 | |
| 3060 | default: |
| 3061 | dprintk(3, "unsupported\n"); |
| 3062 | dprintk(1, |
| 3063 | KERN_ERR |
| 3064 | "%s: VIDIOC_S_FMT - unsupported type %d\n", |
| 3065 | ZR_DEVNAME(zr), fmt->type); |
| 3066 | return -EINVAL; |
| 3067 | } |
| 3068 | |
| 3069 | return res; |
| 3070 | } |
| 3071 | break; |
| 3072 | |
| 3073 | case VIDIOC_G_FBUF: |
| 3074 | { |
| 3075 | struct v4l2_framebuffer *fb = arg; |
| 3076 | |
| 3077 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr)); |
| 3078 | |
| 3079 | memset(fb, 0, sizeof(*fb)); |
| 3080 | down(&zr->resource_lock); |
| 3081 | fb->base = zr->buffer.base; |
| 3082 | fb->fmt.width = zr->buffer.width; |
| 3083 | fb->fmt.height = zr->buffer.height; |
| 3084 | if (zr->overlay_settings.format) { |
| 3085 | fb->fmt.pixelformat = |
| 3086 | fh->overlay_settings.format->fourcc; |
| 3087 | } |
| 3088 | fb->fmt.bytesperline = zr->buffer.bytesperline; |
| 3089 | up(&zr->resource_lock); |
| 3090 | fb->fmt.colorspace = V4L2_COLORSPACE_SRGB; |
| 3091 | fb->fmt.field = V4L2_FIELD_INTERLACED; |
| 3092 | fb->flags = V4L2_FBUF_FLAG_OVERLAY; |
| 3093 | fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; |
| 3094 | |
| 3095 | return 0; |
| 3096 | } |
| 3097 | break; |
| 3098 | |
| 3099 | case VIDIOC_S_FBUF: |
| 3100 | { |
| 3101 | int i, res = 0; |
| 3102 | struct v4l2_framebuffer *fb = arg; |
| 3103 | __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat); |
| 3104 | |
| 3105 | dprintk(3, |
| 3106 | KERN_DEBUG |
| 3107 | "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n", |
| 3108 | ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height, |
| 3109 | fb->fmt.bytesperline, fb->fmt.pixelformat, |
| 3110 | (char *) &printformat); |
| 3111 | |
| 3112 | for (i = 0; i < zoran_num_formats; i++) |
| 3113 | if (zoran_formats[i].fourcc == fb->fmt.pixelformat) |
| 3114 | break; |
| 3115 | if (i == zoran_num_formats) { |
| 3116 | dprintk(1, |
| 3117 | KERN_ERR |
| 3118 | "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", |
| 3119 | ZR_DEVNAME(zr), fb->fmt.pixelformat, |
| 3120 | (char *) &printformat); |
| 3121 | return -EINVAL; |
| 3122 | } |
| 3123 | |
| 3124 | down(&zr->resource_lock); |
| 3125 | res = |
| 3126 | setup_fbuffer(file, fb->base, &zoran_formats[i], |
| 3127 | fb->fmt.width, fb->fmt.height, |
| 3128 | fb->fmt.bytesperline); |
| 3129 | up(&zr->resource_lock); |
| 3130 | |
| 3131 | return res; |
| 3132 | } |
| 3133 | break; |
| 3134 | |
| 3135 | case VIDIOC_OVERLAY: |
| 3136 | { |
| 3137 | int *on = arg, res; |
| 3138 | |
| 3139 | dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n", |
| 3140 | ZR_DEVNAME(zr), *on); |
| 3141 | |
| 3142 | down(&zr->resource_lock); |
| 3143 | res = setup_overlay(file, *on); |
| 3144 | up(&zr->resource_lock); |
| 3145 | |
| 3146 | return res; |
| 3147 | } |
| 3148 | break; |
| 3149 | |
| 3150 | case VIDIOC_REQBUFS: |
| 3151 | { |
| 3152 | struct v4l2_requestbuffers *req = arg; |
| 3153 | int res = 0; |
| 3154 | |
| 3155 | dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n", |
| 3156 | ZR_DEVNAME(zr), req->type); |
| 3157 | |
| 3158 | if (req->memory != V4L2_MEMORY_MMAP) { |
| 3159 | dprintk(1, |
| 3160 | KERN_ERR |
| 3161 | "%s: only MEMORY_MMAP capture is supported, not %d\n", |
| 3162 | ZR_DEVNAME(zr), req->memory); |
| 3163 | return -EINVAL; |
| 3164 | } |
| 3165 | |
| 3166 | down(&zr->resource_lock); |
| 3167 | |
| 3168 | if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) { |
| 3169 | dprintk(1, |
| 3170 | KERN_ERR |
| 3171 | "%s: VIDIOC_REQBUFS - buffers allready allocated\n", |
| 3172 | ZR_DEVNAME(zr)); |
| 3173 | res = -EBUSY; |
| 3174 | goto v4l2reqbuf_unlock_and_return; |
| 3175 | } |
| 3176 | |
| 3177 | if (fh->map_mode == ZORAN_MAP_MODE_RAW && |
| 3178 | req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 3179 | |
| 3180 | /* control user input */ |
| 3181 | if (req->count < 2) |
| 3182 | req->count = 2; |
| 3183 | if (req->count > v4l_nbufs) |
| 3184 | req->count = v4l_nbufs; |
| 3185 | fh->v4l_buffers.num_buffers = req->count; |
| 3186 | |
| 3187 | if (v4l_fbuffer_alloc(file)) { |
| 3188 | res = -ENOMEM; |
| 3189 | goto v4l2reqbuf_unlock_and_return; |
| 3190 | } |
| 3191 | |
| 3192 | /* The next mmap will map the V4L buffers */ |
| 3193 | fh->map_mode = ZORAN_MAP_MODE_RAW; |
| 3194 | |
| 3195 | } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || |
| 3196 | fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { |
| 3197 | |
| 3198 | /* we need to calculate size ourselves now */ |
| 3199 | if (req->count < 4) |
| 3200 | req->count = 4; |
| 3201 | if (req->count > jpg_nbufs) |
| 3202 | req->count = jpg_nbufs; |
| 3203 | fh->jpg_buffers.num_buffers = req->count; |
| 3204 | fh->jpg_buffers.buffer_size = |
| 3205 | zoran_v4l2_calc_bufsize(&fh->jpg_settings); |
| 3206 | |
| 3207 | if (jpg_fbuffer_alloc(file)) { |
| 3208 | res = -ENOMEM; |
| 3209 | goto v4l2reqbuf_unlock_and_return; |
| 3210 | } |
| 3211 | |
| 3212 | /* The next mmap will map the MJPEG buffers */ |
| 3213 | if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 3214 | fh->map_mode = ZORAN_MAP_MODE_JPG_REC; |
| 3215 | else |
| 3216 | fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY; |
| 3217 | |
| 3218 | } else { |
| 3219 | dprintk(1, |
| 3220 | KERN_ERR |
| 3221 | "%s: VIDIOC_REQBUFS - unknown type %d\n", |
| 3222 | ZR_DEVNAME(zr), req->type); |
| 3223 | res = -EINVAL; |
| 3224 | goto v4l2reqbuf_unlock_and_return; |
| 3225 | } |
| 3226 | v4l2reqbuf_unlock_and_return: |
| 3227 | up(&zr->resource_lock); |
| 3228 | |
| 3229 | return 0; |
| 3230 | } |
| 3231 | break; |
| 3232 | |
| 3233 | case VIDIOC_QUERYBUF: |
| 3234 | { |
| 3235 | struct v4l2_buffer *buf = arg; |
| 3236 | __u32 type = buf->type; |
| 3237 | int index = buf->index, res; |
| 3238 | |
| 3239 | dprintk(3, |
| 3240 | KERN_DEBUG |
| 3241 | "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n", |
| 3242 | ZR_DEVNAME(zr), buf->index, buf->type); |
| 3243 | |
| 3244 | memset(buf, 0, sizeof(buf)); |
| 3245 | buf->type = type; |
| 3246 | buf->index = index; |
| 3247 | |
| 3248 | down(&zr->resource_lock); |
| 3249 | res = zoran_v4l2_buffer_status(file, buf, buf->index); |
| 3250 | up(&zr->resource_lock); |
| 3251 | |
| 3252 | return res; |
| 3253 | } |
| 3254 | break; |
| 3255 | |
| 3256 | case VIDIOC_QBUF: |
| 3257 | { |
| 3258 | struct v4l2_buffer *buf = arg; |
| 3259 | int res = 0, codec_mode, buf_type; |
| 3260 | |
| 3261 | dprintk(3, |
| 3262 | KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n", |
| 3263 | ZR_DEVNAME(zr), buf->type, buf->index); |
| 3264 | |
| 3265 | down(&zr->resource_lock); |
| 3266 | |
| 3267 | switch (fh->map_mode) { |
| 3268 | case ZORAN_MAP_MODE_RAW: |
| 3269 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 3270 | dprintk(1, |
| 3271 | KERN_ERR |
| 3272 | "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| 3273 | ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| 3274 | res = -EINVAL; |
| 3275 | goto qbuf_unlock_and_return; |
| 3276 | } |
| 3277 | |
| 3278 | res = zoran_v4l_queue_frame(file, buf->index); |
| 3279 | if (res) |
| 3280 | goto qbuf_unlock_and_return; |
| 3281 | if (!zr->v4l_memgrab_active && |
| 3282 | fh->v4l_buffers.active == ZORAN_LOCKED) |
| 3283 | zr36057_set_memgrab(zr, 1); |
| 3284 | break; |
| 3285 | |
| 3286 | case ZORAN_MAP_MODE_JPG_REC: |
| 3287 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 3288 | if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { |
| 3289 | buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| 3290 | codec_mode = BUZ_MODE_MOTION_DECOMPRESS; |
| 3291 | } else { |
| 3292 | buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 3293 | codec_mode = BUZ_MODE_MOTION_COMPRESS; |
| 3294 | } |
| 3295 | |
| 3296 | if (buf->type != buf_type) { |
| 3297 | dprintk(1, |
| 3298 | KERN_ERR |
| 3299 | "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| 3300 | ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| 3301 | res = -EINVAL; |
| 3302 | goto qbuf_unlock_and_return; |
| 3303 | } |
| 3304 | |
| 3305 | res = |
| 3306 | zoran_jpg_queue_frame(file, buf->index, |
| 3307 | codec_mode); |
| 3308 | if (res != 0) |
| 3309 | goto qbuf_unlock_and_return; |
| 3310 | if (zr->codec_mode == BUZ_MODE_IDLE && |
| 3311 | fh->jpg_buffers.active == ZORAN_LOCKED) { |
| 3312 | zr36057_enable_jpg(zr, codec_mode); |
| 3313 | } |
| 3314 | break; |
| 3315 | |
| 3316 | default: |
| 3317 | dprintk(1, |
| 3318 | KERN_ERR |
| 3319 | "%s: VIDIOC_QBUF - unsupported type %d\n", |
| 3320 | ZR_DEVNAME(zr), buf->type); |
| 3321 | res = -EINVAL; |
| 3322 | goto qbuf_unlock_and_return; |
| 3323 | } |
| 3324 | qbuf_unlock_and_return: |
| 3325 | up(&zr->resource_lock); |
| 3326 | |
| 3327 | return res; |
| 3328 | } |
| 3329 | break; |
| 3330 | |
| 3331 | case VIDIOC_DQBUF: |
| 3332 | { |
| 3333 | struct v4l2_buffer *buf = arg; |
| 3334 | int res = 0, buf_type, num = -1; /* compiler borks here (?) */ |
| 3335 | |
| 3336 | dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n", |
| 3337 | ZR_DEVNAME(zr), buf->type); |
| 3338 | |
| 3339 | down(&zr->resource_lock); |
| 3340 | |
| 3341 | switch (fh->map_mode) { |
| 3342 | case ZORAN_MAP_MODE_RAW: |
| 3343 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 3344 | dprintk(1, |
| 3345 | KERN_ERR |
| 3346 | "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| 3347 | ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| 3348 | res = -EINVAL; |
| 3349 | goto dqbuf_unlock_and_return; |
| 3350 | } |
| 3351 | |
| 3352 | num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; |
| 3353 | if (file->f_flags & O_NONBLOCK && |
| 3354 | zr->v4l_buffers.buffer[num].state != |
| 3355 | BUZ_STATE_DONE) { |
| 3356 | res = -EAGAIN; |
| 3357 | goto dqbuf_unlock_and_return; |
| 3358 | } |
| 3359 | res = v4l_sync(file, num); |
| 3360 | if (res) |
| 3361 | goto dqbuf_unlock_and_return; |
| 3362 | else |
| 3363 | zr->v4l_sync_tail++; |
| 3364 | res = zoran_v4l2_buffer_status(file, buf, num); |
| 3365 | break; |
| 3366 | |
| 3367 | case ZORAN_MAP_MODE_JPG_REC: |
| 3368 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 3369 | { |
| 3370 | struct zoran_sync bs; |
| 3371 | |
| 3372 | if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) |
| 3373 | buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| 3374 | else |
| 3375 | buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 3376 | |
| 3377 | if (buf->type != buf_type) { |
| 3378 | dprintk(1, |
| 3379 | KERN_ERR |
| 3380 | "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| 3381 | ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| 3382 | res = -EINVAL; |
| 3383 | goto dqbuf_unlock_and_return; |
| 3384 | } |
| 3385 | |
| 3386 | num = |
| 3387 | zr->jpg_pend[zr-> |
| 3388 | jpg_que_tail & BUZ_MASK_FRAME]; |
| 3389 | |
| 3390 | if (file->f_flags & O_NONBLOCK && |
| 3391 | zr->jpg_buffers.buffer[num].state != |
| 3392 | BUZ_STATE_DONE) { |
| 3393 | res = -EAGAIN; |
| 3394 | goto dqbuf_unlock_and_return; |
| 3395 | } |
| 3396 | res = jpg_sync(file, &bs); |
| 3397 | if (res) |
| 3398 | goto dqbuf_unlock_and_return; |
| 3399 | res = |
| 3400 | zoran_v4l2_buffer_status(file, buf, bs.frame); |
| 3401 | break; |
| 3402 | } |
| 3403 | |
| 3404 | default: |
| 3405 | dprintk(1, |
| 3406 | KERN_ERR |
| 3407 | "%s: VIDIOC_DQBUF - unsupported type %d\n", |
| 3408 | ZR_DEVNAME(zr), buf->type); |
| 3409 | res = -EINVAL; |
| 3410 | goto dqbuf_unlock_and_return; |
| 3411 | } |
| 3412 | dqbuf_unlock_and_return: |
| 3413 | up(&zr->resource_lock); |
| 3414 | |
| 3415 | return res; |
| 3416 | } |
| 3417 | break; |
| 3418 | |
| 3419 | case VIDIOC_STREAMON: |
| 3420 | { |
| 3421 | int res = 0; |
| 3422 | |
| 3423 | dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr)); |
| 3424 | |
| 3425 | down(&zr->resource_lock); |
| 3426 | |
| 3427 | switch (fh->map_mode) { |
| 3428 | case ZORAN_MAP_MODE_RAW: /* raw capture */ |
| 3429 | if (zr->v4l_buffers.active != ZORAN_ACTIVE || |
| 3430 | fh->v4l_buffers.active != ZORAN_ACTIVE) { |
| 3431 | res = -EBUSY; |
| 3432 | goto strmon_unlock_and_return; |
| 3433 | } |
| 3434 | |
| 3435 | zr->v4l_buffers.active = fh->v4l_buffers.active = |
| 3436 | ZORAN_LOCKED; |
| 3437 | zr->v4l_settings = fh->v4l_settings; |
| 3438 | |
| 3439 | zr->v4l_sync_tail = zr->v4l_pend_tail; |
| 3440 | if (!zr->v4l_memgrab_active && |
| 3441 | zr->v4l_pend_head != zr->v4l_pend_tail) { |
| 3442 | zr36057_set_memgrab(zr, 1); |
| 3443 | } |
| 3444 | break; |
| 3445 | |
| 3446 | case ZORAN_MAP_MODE_JPG_REC: |
| 3447 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 3448 | /* what is the codec mode right now? */ |
| 3449 | if (zr->jpg_buffers.active != ZORAN_ACTIVE || |
| 3450 | fh->jpg_buffers.active != ZORAN_ACTIVE) { |
| 3451 | res = -EBUSY; |
| 3452 | goto strmon_unlock_and_return; |
| 3453 | } |
| 3454 | |
| 3455 | zr->jpg_buffers.active = fh->jpg_buffers.active = |
| 3456 | ZORAN_LOCKED; |
| 3457 | |
| 3458 | if (zr->jpg_que_head != zr->jpg_que_tail) { |
| 3459 | /* Start the jpeg codec when the first frame is queued */ |
| 3460 | jpeg_start(zr); |
| 3461 | } |
| 3462 | |
| 3463 | break; |
| 3464 | default: |
| 3465 | dprintk(1, |
| 3466 | KERN_ERR |
| 3467 | "%s: VIDIOC_STREAMON - invalid map mode %d\n", |
| 3468 | ZR_DEVNAME(zr), fh->map_mode); |
| 3469 | res = -EINVAL; |
| 3470 | goto strmon_unlock_and_return; |
| 3471 | } |
| 3472 | strmon_unlock_and_return: |
| 3473 | up(&zr->resource_lock); |
| 3474 | |
| 3475 | return res; |
| 3476 | } |
| 3477 | break; |
| 3478 | |
| 3479 | case VIDIOC_STREAMOFF: |
| 3480 | { |
| 3481 | int i, res = 0; |
| 3482 | |
| 3483 | dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr)); |
| 3484 | |
| 3485 | down(&zr->resource_lock); |
| 3486 | |
| 3487 | switch (fh->map_mode) { |
| 3488 | case ZORAN_MAP_MODE_RAW: /* raw capture */ |
| 3489 | if (fh->v4l_buffers.active == ZORAN_FREE && |
| 3490 | zr->v4l_buffers.active != ZORAN_FREE) { |
| 3491 | res = -EPERM; /* stay off other's settings! */ |
| 3492 | goto strmoff_unlock_and_return; |
| 3493 | } |
| 3494 | if (zr->v4l_buffers.active == ZORAN_FREE) |
| 3495 | goto strmoff_unlock_and_return; |
| 3496 | |
| 3497 | /* unload capture */ |
| 3498 | if (zr->v4l_memgrab_active) |
| 3499 | zr36057_set_memgrab(zr, 0); |
| 3500 | |
| 3501 | for (i = 0; i < fh->v4l_buffers.num_buffers; i++) |
| 3502 | zr->v4l_buffers.buffer[i].state = |
| 3503 | BUZ_STATE_USER; |
| 3504 | fh->v4l_buffers = zr->v4l_buffers; |
| 3505 | |
| 3506 | zr->v4l_buffers.active = fh->v4l_buffers.active = |
| 3507 | ZORAN_FREE; |
| 3508 | |
| 3509 | zr->v4l_grab_seq = 0; |
| 3510 | zr->v4l_pend_head = zr->v4l_pend_tail = 0; |
| 3511 | zr->v4l_sync_tail = 0; |
| 3512 | |
| 3513 | break; |
| 3514 | |
| 3515 | case ZORAN_MAP_MODE_JPG_REC: |
| 3516 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 3517 | if (fh->jpg_buffers.active == ZORAN_FREE && |
| 3518 | zr->jpg_buffers.active != ZORAN_FREE) { |
| 3519 | res = -EPERM; /* stay off other's settings! */ |
| 3520 | goto strmoff_unlock_and_return; |
| 3521 | } |
| 3522 | if (zr->jpg_buffers.active == ZORAN_FREE) |
| 3523 | goto strmoff_unlock_and_return; |
| 3524 | |
| 3525 | res = |
| 3526 | jpg_qbuf(file, -1, |
| 3527 | (fh->map_mode == |
| 3528 | ZORAN_MAP_MODE_JPG_REC) ? |
| 3529 | BUZ_MODE_MOTION_COMPRESS : |
| 3530 | BUZ_MODE_MOTION_DECOMPRESS); |
| 3531 | if (res) |
| 3532 | goto strmoff_unlock_and_return; |
| 3533 | break; |
| 3534 | default: |
| 3535 | dprintk(1, |
| 3536 | KERN_ERR |
| 3537 | "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", |
| 3538 | ZR_DEVNAME(zr), fh->map_mode); |
| 3539 | res = -EINVAL; |
| 3540 | goto strmoff_unlock_and_return; |
| 3541 | } |
| 3542 | strmoff_unlock_and_return: |
| 3543 | up(&zr->resource_lock); |
| 3544 | |
| 3545 | return res; |
| 3546 | } |
| 3547 | break; |
| 3548 | |
| 3549 | case VIDIOC_QUERYCTRL: |
| 3550 | { |
| 3551 | struct v4l2_queryctrl *ctrl = arg; |
| 3552 | |
| 3553 | dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n", |
| 3554 | ZR_DEVNAME(zr), ctrl->id); |
| 3555 | |
| 3556 | /* we only support hue/saturation/contrast/brightness */ |
| 3557 | if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| 3558 | ctrl->id > V4L2_CID_HUE) |
| 3559 | return -EINVAL; |
| 3560 | else { |
| 3561 | int id = ctrl->id; |
| 3562 | memset(ctrl, 0, sizeof(*ctrl)); |
| 3563 | ctrl->id = id; |
| 3564 | } |
| 3565 | |
| 3566 | switch (ctrl->id) { |
| 3567 | case V4L2_CID_BRIGHTNESS: |
| 3568 | strncpy(ctrl->name, "Brightness", 31); |
| 3569 | break; |
| 3570 | case V4L2_CID_CONTRAST: |
| 3571 | strncpy(ctrl->name, "Contrast", 31); |
| 3572 | break; |
| 3573 | case V4L2_CID_SATURATION: |
| 3574 | strncpy(ctrl->name, "Saturation", 31); |
| 3575 | break; |
| 3576 | case V4L2_CID_HUE: |
| 3577 | strncpy(ctrl->name, "Hue", 31); |
| 3578 | break; |
| 3579 | } |
| 3580 | |
| 3581 | ctrl->minimum = 0; |
| 3582 | ctrl->maximum = 65535; |
| 3583 | ctrl->step = 1; |
| 3584 | ctrl->default_value = 32768; |
| 3585 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; |
| 3586 | |
| 3587 | return 0; |
| 3588 | } |
| 3589 | break; |
| 3590 | |
| 3591 | case VIDIOC_G_CTRL: |
| 3592 | { |
| 3593 | struct v4l2_control *ctrl = arg; |
| 3594 | |
| 3595 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n", |
| 3596 | ZR_DEVNAME(zr), ctrl->id); |
| 3597 | |
| 3598 | /* we only support hue/saturation/contrast/brightness */ |
| 3599 | if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| 3600 | ctrl->id > V4L2_CID_HUE) |
| 3601 | return -EINVAL; |
| 3602 | |
| 3603 | down(&zr->resource_lock); |
| 3604 | switch (ctrl->id) { |
| 3605 | case V4L2_CID_BRIGHTNESS: |
| 3606 | ctrl->value = zr->brightness; |
| 3607 | break; |
| 3608 | case V4L2_CID_CONTRAST: |
| 3609 | ctrl->value = zr->contrast; |
| 3610 | break; |
| 3611 | case V4L2_CID_SATURATION: |
| 3612 | ctrl->value = zr->saturation; |
| 3613 | break; |
| 3614 | case V4L2_CID_HUE: |
| 3615 | ctrl->value = zr->hue; |
| 3616 | break; |
| 3617 | } |
| 3618 | up(&zr->resource_lock); |
| 3619 | |
| 3620 | return 0; |
| 3621 | } |
| 3622 | break; |
| 3623 | |
| 3624 | case VIDIOC_S_CTRL: |
| 3625 | { |
| 3626 | struct v4l2_control *ctrl = arg; |
| 3627 | struct video_picture pict; |
| 3628 | |
| 3629 | dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n", |
| 3630 | ZR_DEVNAME(zr), ctrl->id); |
| 3631 | |
| 3632 | /* we only support hue/saturation/contrast/brightness */ |
| 3633 | if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| 3634 | ctrl->id > V4L2_CID_HUE) |
| 3635 | return -EINVAL; |
| 3636 | |
| 3637 | if (ctrl->value < 0 || ctrl->value > 65535) { |
| 3638 | dprintk(1, |
| 3639 | KERN_ERR |
| 3640 | "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n", |
| 3641 | ZR_DEVNAME(zr), ctrl->value, ctrl->id); |
| 3642 | return -EINVAL; |
| 3643 | } |
| 3644 | |
| 3645 | down(&zr->resource_lock); |
| 3646 | switch (ctrl->id) { |
| 3647 | case V4L2_CID_BRIGHTNESS: |
| 3648 | zr->brightness = ctrl->value; |
| 3649 | break; |
| 3650 | case V4L2_CID_CONTRAST: |
| 3651 | zr->contrast = ctrl->value; |
| 3652 | break; |
| 3653 | case V4L2_CID_SATURATION: |
| 3654 | zr->saturation = ctrl->value; |
| 3655 | break; |
| 3656 | case V4L2_CID_HUE: |
| 3657 | zr->hue = ctrl->value; |
| 3658 | break; |
| 3659 | } |
| 3660 | pict.brightness = zr->brightness; |
| 3661 | pict.contrast = zr->contrast; |
| 3662 | pict.colour = zr->saturation; |
| 3663 | pict.hue = zr->hue; |
| 3664 | |
| 3665 | decoder_command(zr, DECODER_SET_PICTURE, &pict); |
| 3666 | |
| 3667 | up(&zr->resource_lock); |
| 3668 | |
| 3669 | return 0; |
| 3670 | } |
| 3671 | break; |
| 3672 | |
| 3673 | case VIDIOC_ENUMSTD: |
| 3674 | { |
| 3675 | struct v4l2_standard *std = arg; |
| 3676 | |
| 3677 | dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n", |
| 3678 | ZR_DEVNAME(zr), std->index); |
| 3679 | |
| 3680 | if (std->index < 0 || std->index >= (zr->card.norms + 1)) |
| 3681 | return -EINVAL; |
| 3682 | else { |
| 3683 | int id = std->index; |
| 3684 | memset(std, 0, sizeof(*std)); |
| 3685 | std->index = id; |
| 3686 | } |
| 3687 | |
| 3688 | if (std->index == zr->card.norms) { |
| 3689 | /* if we have autodetect, ... */ |
| 3690 | struct video_decoder_capability caps; |
| 3691 | decoder_command(zr, DECODER_GET_CAPABILITIES, |
| 3692 | &caps); |
| 3693 | if (caps.flags & VIDEO_DECODER_AUTO) { |
| 3694 | std->id = V4L2_STD_ALL; |
| 3695 | strncpy(std->name, "Autodetect", 31); |
| 3696 | return 0; |
| 3697 | } else |
| 3698 | return -EINVAL; |
| 3699 | } |
| 3700 | switch (std->index) { |
| 3701 | case 0: |
| 3702 | std->id = V4L2_STD_PAL; |
| 3703 | strncpy(std->name, "PAL", 31); |
| 3704 | std->frameperiod.numerator = 1; |
| 3705 | std->frameperiod.denominator = 25; |
| 3706 | std->framelines = zr->card.tvn[0]->Ht; |
| 3707 | break; |
| 3708 | case 1: |
| 3709 | std->id = V4L2_STD_NTSC; |
| 3710 | strncpy(std->name, "NTSC", 31); |
| 3711 | std->frameperiod.numerator = 1001; |
| 3712 | std->frameperiod.denominator = 30000; |
| 3713 | std->framelines = zr->card.tvn[1]->Ht; |
| 3714 | break; |
| 3715 | case 2: |
| 3716 | std->id = V4L2_STD_SECAM; |
| 3717 | strncpy(std->name, "SECAM", 31); |
| 3718 | std->frameperiod.numerator = 1; |
| 3719 | std->frameperiod.denominator = 25; |
| 3720 | std->framelines = zr->card.tvn[2]->Ht; |
| 3721 | break; |
| 3722 | } |
| 3723 | |
| 3724 | return 0; |
| 3725 | } |
| 3726 | break; |
| 3727 | |
| 3728 | case VIDIOC_G_STD: |
| 3729 | { |
| 3730 | v4l2_std_id *std = arg; |
| 3731 | int norm; |
| 3732 | |
| 3733 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr)); |
| 3734 | |
| 3735 | down(&zr->resource_lock); |
| 3736 | norm = zr->norm; |
| 3737 | up(&zr->resource_lock); |
| 3738 | |
| 3739 | switch (norm) { |
| 3740 | case VIDEO_MODE_PAL: |
| 3741 | *std = V4L2_STD_PAL; |
| 3742 | break; |
| 3743 | case VIDEO_MODE_NTSC: |
| 3744 | *std = V4L2_STD_NTSC; |
| 3745 | break; |
| 3746 | case VIDEO_MODE_SECAM: |
| 3747 | *std = V4L2_STD_SECAM; |
| 3748 | break; |
| 3749 | } |
| 3750 | |
| 3751 | return 0; |
| 3752 | } |
| 3753 | break; |
| 3754 | |
| 3755 | case VIDIOC_S_STD: |
| 3756 | { |
| 3757 | int norm = -1, res = 0; |
| 3758 | v4l2_std_id *std = arg; |
| 3759 | |
| 3760 | dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n", |
| 3761 | ZR_DEVNAME(zr), (unsigned long long)*std); |
| 3762 | |
| 3763 | if (*std == V4L2_STD_PAL) |
| 3764 | norm = VIDEO_MODE_PAL; |
| 3765 | else if (*std == V4L2_STD_NTSC) |
| 3766 | norm = VIDEO_MODE_NTSC; |
| 3767 | else if (*std == V4L2_STD_SECAM) |
| 3768 | norm = VIDEO_MODE_SECAM; |
| 3769 | else if (*std == V4L2_STD_ALL) |
| 3770 | norm = VIDEO_MODE_AUTO; |
| 3771 | else { |
| 3772 | dprintk(1, |
| 3773 | KERN_ERR |
| 3774 | "%s: VIDIOC_S_STD - invalid norm 0x%llx\n", |
| 3775 | ZR_DEVNAME(zr), (unsigned long long)*std); |
| 3776 | return -EINVAL; |
| 3777 | } |
| 3778 | |
| 3779 | down(&zr->resource_lock); |
| 3780 | if ((res = zoran_set_norm(zr, norm))) |
| 3781 | goto sstd_unlock_and_return; |
| 3782 | |
| 3783 | res = wait_grab_pending(zr); |
| 3784 | sstd_unlock_and_return: |
| 3785 | up(&zr->resource_lock); |
| 3786 | return res; |
| 3787 | } |
| 3788 | break; |
| 3789 | |
| 3790 | case VIDIOC_ENUMINPUT: |
| 3791 | { |
| 3792 | struct v4l2_input *inp = arg; |
| 3793 | int status; |
| 3794 | |
| 3795 | dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n", |
| 3796 | ZR_DEVNAME(zr), inp->index); |
| 3797 | |
| 3798 | if (inp->index < 0 || inp->index >= zr->card.inputs) |
| 3799 | return -EINVAL; |
| 3800 | else { |
| 3801 | int id = inp->index; |
| 3802 | memset(inp, 0, sizeof(*inp)); |
| 3803 | inp->index = id; |
| 3804 | } |
| 3805 | |
| 3806 | strncpy(inp->name, zr->card.input[inp->index].name, |
| 3807 | sizeof(inp->name) - 1); |
| 3808 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
| 3809 | inp->std = V4L2_STD_ALL; |
| 3810 | |
| 3811 | /* Get status of video decoder */ |
| 3812 | down(&zr->resource_lock); |
| 3813 | decoder_command(zr, DECODER_GET_STATUS, &status); |
| 3814 | up(&zr->resource_lock); |
| 3815 | |
| 3816 | if (!(status & DECODER_STATUS_GOOD)) { |
| 3817 | inp->status |= V4L2_IN_ST_NO_POWER; |
| 3818 | inp->status |= V4L2_IN_ST_NO_SIGNAL; |
| 3819 | } |
| 3820 | if (!(status & DECODER_STATUS_COLOR)) |
| 3821 | inp->status |= V4L2_IN_ST_NO_COLOR; |
| 3822 | |
| 3823 | return 0; |
| 3824 | } |
| 3825 | break; |
| 3826 | |
| 3827 | case VIDIOC_G_INPUT: |
| 3828 | { |
| 3829 | int *input = arg; |
| 3830 | |
| 3831 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr)); |
| 3832 | |
| 3833 | down(&zr->resource_lock); |
| 3834 | *input = zr->input; |
| 3835 | up(&zr->resource_lock); |
| 3836 | |
| 3837 | return 0; |
| 3838 | } |
| 3839 | break; |
| 3840 | |
| 3841 | case VIDIOC_S_INPUT: |
| 3842 | { |
| 3843 | int *input = arg, res = 0; |
| 3844 | |
| 3845 | dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n", |
| 3846 | ZR_DEVNAME(zr), *input); |
| 3847 | |
| 3848 | down(&zr->resource_lock); |
| 3849 | if ((res = zoran_set_input(zr, *input))) |
| 3850 | goto sinput_unlock_and_return; |
| 3851 | |
| 3852 | /* Make sure the changes come into effect */ |
| 3853 | res = wait_grab_pending(zr); |
| 3854 | sinput_unlock_and_return: |
| 3855 | up(&zr->resource_lock); |
| 3856 | return res; |
| 3857 | } |
| 3858 | break; |
| 3859 | |
| 3860 | case VIDIOC_ENUMOUTPUT: |
| 3861 | { |
| 3862 | struct v4l2_output *outp = arg; |
| 3863 | |
| 3864 | dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n", |
| 3865 | ZR_DEVNAME(zr), outp->index); |
| 3866 | |
| 3867 | if (outp->index != 0) |
| 3868 | return -EINVAL; |
| 3869 | |
| 3870 | memset(outp, 0, sizeof(*outp)); |
| 3871 | outp->index = 0; |
| 3872 | outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; |
| 3873 | strncpy(outp->name, "Autodetect", 31); |
| 3874 | |
| 3875 | return 0; |
| 3876 | } |
| 3877 | break; |
| 3878 | |
| 3879 | case VIDIOC_G_OUTPUT: |
| 3880 | { |
| 3881 | int *output = arg; |
| 3882 | |
| 3883 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr)); |
| 3884 | |
| 3885 | *output = 0; |
| 3886 | |
| 3887 | return 0; |
| 3888 | } |
| 3889 | break; |
| 3890 | |
| 3891 | case VIDIOC_S_OUTPUT: |
| 3892 | { |
| 3893 | int *output = arg; |
| 3894 | |
| 3895 | dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n", |
| 3896 | ZR_DEVNAME(zr), *output); |
| 3897 | |
| 3898 | if (*output != 0) |
| 3899 | return -EINVAL; |
| 3900 | |
| 3901 | return 0; |
| 3902 | } |
| 3903 | break; |
| 3904 | |
| 3905 | /* cropping (sub-frame capture) */ |
| 3906 | case VIDIOC_CROPCAP: |
| 3907 | { |
| 3908 | struct v4l2_cropcap *cropcap = arg; |
| 3909 | int type = cropcap->type, res = 0; |
| 3910 | |
| 3911 | dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n", |
| 3912 | ZR_DEVNAME(zr), cropcap->type); |
| 3913 | |
| 3914 | memset(cropcap, 0, sizeof(*cropcap)); |
| 3915 | cropcap->type = type; |
| 3916 | |
| 3917 | down(&zr->resource_lock); |
| 3918 | |
| 3919 | if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 3920 | (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 3921 | fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| 3922 | dprintk(1, |
| 3923 | KERN_ERR |
| 3924 | "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n", |
| 3925 | ZR_DEVNAME(zr)); |
| 3926 | res = -EINVAL; |
| 3927 | goto cropcap_unlock_and_return; |
| 3928 | } |
| 3929 | |
| 3930 | cropcap->bounds.top = cropcap->bounds.left = 0; |
| 3931 | cropcap->bounds.width = BUZ_MAX_WIDTH; |
| 3932 | cropcap->bounds.height = BUZ_MAX_HEIGHT; |
| 3933 | cropcap->defrect.top = cropcap->defrect.left = 0; |
| 3934 | cropcap->defrect.width = BUZ_MIN_WIDTH; |
| 3935 | cropcap->defrect.height = BUZ_MIN_HEIGHT; |
| 3936 | cropcap_unlock_and_return: |
| 3937 | up(&zr->resource_lock); |
| 3938 | return res; |
| 3939 | } |
| 3940 | break; |
| 3941 | |
| 3942 | case VIDIOC_G_CROP: |
| 3943 | { |
| 3944 | struct v4l2_crop *crop = arg; |
| 3945 | int type = crop->type, res = 0; |
| 3946 | |
| 3947 | dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n", |
| 3948 | ZR_DEVNAME(zr), crop->type); |
| 3949 | |
| 3950 | memset(crop, 0, sizeof(*crop)); |
| 3951 | crop->type = type; |
| 3952 | |
| 3953 | down(&zr->resource_lock); |
| 3954 | |
| 3955 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 3956 | (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 3957 | fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| 3958 | dprintk(1, |
| 3959 | KERN_ERR |
| 3960 | "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", |
| 3961 | ZR_DEVNAME(zr)); |
| 3962 | res = -EINVAL; |
| 3963 | goto gcrop_unlock_and_return; |
| 3964 | } |
| 3965 | |
| 3966 | crop->c.top = fh->jpg_settings.img_y; |
| 3967 | crop->c.left = fh->jpg_settings.img_x; |
| 3968 | crop->c.width = fh->jpg_settings.img_width; |
| 3969 | crop->c.height = fh->jpg_settings.img_height; |
| 3970 | |
| 3971 | gcrop_unlock_and_return: |
| 3972 | up(&zr->resource_lock); |
| 3973 | |
| 3974 | return res; |
| 3975 | } |
| 3976 | break; |
| 3977 | |
| 3978 | case VIDIOC_S_CROP: |
| 3979 | { |
| 3980 | struct v4l2_crop *crop = arg; |
| 3981 | int res = 0; |
| 3982 | |
| 3983 | settings = fh->jpg_settings; |
| 3984 | |
| 3985 | dprintk(3, |
| 3986 | KERN_ERR |
| 3987 | "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n", |
| 3988 | ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top, |
| 3989 | crop->c.width, crop->c.height); |
| 3990 | |
| 3991 | down(&zr->resource_lock); |
| 3992 | |
| 3993 | if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| 3994 | dprintk(1, |
| 3995 | KERN_ERR |
| 3996 | "%s: VIDIOC_S_CROP - cannot change settings while active\n", |
| 3997 | ZR_DEVNAME(zr)); |
| 3998 | res = -EBUSY; |
| 3999 | goto scrop_unlock_and_return; |
| 4000 | } |
| 4001 | |
| 4002 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| 4003 | (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 4004 | fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| 4005 | dprintk(1, |
| 4006 | KERN_ERR |
| 4007 | "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", |
| 4008 | ZR_DEVNAME(zr)); |
| 4009 | res = -EINVAL; |
| 4010 | goto scrop_unlock_and_return; |
| 4011 | } |
| 4012 | |
| 4013 | /* move into a form that we understand */ |
| 4014 | settings.img_x = crop->c.left; |
| 4015 | settings.img_y = crop->c.top; |
| 4016 | settings.img_width = crop->c.width; |
| 4017 | settings.img_height = crop->c.height; |
| 4018 | |
| 4019 | /* check validity */ |
| 4020 | if ((res = zoran_check_jpg_settings(zr, &settings))) |
| 4021 | goto scrop_unlock_and_return; |
| 4022 | |
| 4023 | /* accept */ |
| 4024 | fh->jpg_settings = settings; |
| 4025 | |
| 4026 | scrop_unlock_and_return: |
| 4027 | up(&zr->resource_lock); |
| 4028 | return res; |
| 4029 | } |
| 4030 | break; |
| 4031 | |
| 4032 | case VIDIOC_G_JPEGCOMP: |
| 4033 | { |
| 4034 | struct v4l2_jpegcompression *params = arg; |
| 4035 | |
| 4036 | dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n", |
| 4037 | ZR_DEVNAME(zr)); |
| 4038 | |
| 4039 | memset(params, 0, sizeof(*params)); |
| 4040 | |
| 4041 | down(&zr->resource_lock); |
| 4042 | |
| 4043 | params->quality = fh->jpg_settings.jpg_comp.quality; |
| 4044 | params->APPn = fh->jpg_settings.jpg_comp.APPn; |
| 4045 | memcpy(params->APP_data, |
| 4046 | fh->jpg_settings.jpg_comp.APP_data, |
| 4047 | fh->jpg_settings.jpg_comp.APP_len); |
| 4048 | params->APP_len = fh->jpg_settings.jpg_comp.APP_len; |
| 4049 | memcpy(params->COM_data, |
| 4050 | fh->jpg_settings.jpg_comp.COM_data, |
| 4051 | fh->jpg_settings.jpg_comp.COM_len); |
| 4052 | params->COM_len = fh->jpg_settings.jpg_comp.COM_len; |
| 4053 | params->jpeg_markers = |
| 4054 | fh->jpg_settings.jpg_comp.jpeg_markers; |
| 4055 | |
| 4056 | up(&zr->resource_lock); |
| 4057 | |
| 4058 | return 0; |
| 4059 | } |
| 4060 | break; |
| 4061 | |
| 4062 | case VIDIOC_S_JPEGCOMP: |
| 4063 | { |
| 4064 | struct v4l2_jpegcompression *params = arg; |
| 4065 | int res = 0; |
| 4066 | |
| 4067 | settings = fh->jpg_settings; |
| 4068 | |
| 4069 | dprintk(3, |
| 4070 | KERN_DEBUG |
| 4071 | "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n", |
| 4072 | ZR_DEVNAME(zr), params->quality, params->APPn, |
| 4073 | params->APP_len, params->COM_len); |
| 4074 | |
| 4075 | settings.jpg_comp = *params; |
| 4076 | |
| 4077 | down(&zr->resource_lock); |
| 4078 | |
| 4079 | if (fh->v4l_buffers.active != ZORAN_FREE || |
| 4080 | fh->jpg_buffers.active != ZORAN_FREE) { |
| 4081 | dprintk(1, |
| 4082 | KERN_WARNING |
| 4083 | "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", |
| 4084 | ZR_DEVNAME(zr)); |
| 4085 | res = -EBUSY; |
| 4086 | goto sjpegc_unlock_and_return; |
| 4087 | } |
| 4088 | |
| 4089 | if ((res = zoran_check_jpg_settings(zr, &settings))) |
| 4090 | goto sjpegc_unlock_and_return; |
| 4091 | if (!fh->jpg_buffers.allocated) |
| 4092 | fh->jpg_buffers.buffer_size = |
| 4093 | zoran_v4l2_calc_bufsize(&fh->jpg_settings); |
| 4094 | fh->jpg_settings.jpg_comp = *params = settings.jpg_comp; |
| 4095 | sjpegc_unlock_and_return: |
| 4096 | up(&zr->resource_lock); |
| 4097 | |
| 4098 | return 0; |
| 4099 | } |
| 4100 | break; |
| 4101 | |
| 4102 | case VIDIOC_QUERYSTD: /* why is this useful? */ |
| 4103 | { |
| 4104 | v4l2_std_id *std = arg; |
| 4105 | |
| 4106 | dprintk(3, |
| 4107 | KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n", |
| 4108 | ZR_DEVNAME(zr), (unsigned long long)*std); |
| 4109 | |
| 4110 | if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC || |
| 4111 | *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM && |
| 4112 | zr->card.norms == 3)) { |
| 4113 | return 0; |
| 4114 | } |
| 4115 | |
| 4116 | return -EINVAL; |
| 4117 | } |
| 4118 | break; |
| 4119 | |
| 4120 | case VIDIOC_TRY_FMT: |
| 4121 | { |
| 4122 | struct v4l2_format *fmt = arg; |
| 4123 | int res = 0; |
| 4124 | |
| 4125 | dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n", |
| 4126 | ZR_DEVNAME(zr), fmt->type); |
| 4127 | |
| 4128 | switch (fmt->type) { |
| 4129 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 4130 | down(&zr->resource_lock); |
| 4131 | |
| 4132 | if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH) |
| 4133 | fmt->fmt.win.w.width = BUZ_MAX_WIDTH; |
| 4134 | if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH) |
| 4135 | fmt->fmt.win.w.width = BUZ_MIN_WIDTH; |
| 4136 | if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT) |
| 4137 | fmt->fmt.win.w.height = BUZ_MAX_HEIGHT; |
| 4138 | if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT) |
| 4139 | fmt->fmt.win.w.height = BUZ_MIN_HEIGHT; |
| 4140 | |
| 4141 | up(&zr->resource_lock); |
| 4142 | break; |
| 4143 | |
| 4144 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 4145 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| 4146 | if (fmt->fmt.pix.bytesperline > 0) |
| 4147 | return -EINVAL; |
| 4148 | |
| 4149 | down(&zr->resource_lock); |
| 4150 | |
| 4151 | if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { |
| 4152 | settings = fh->jpg_settings; |
| 4153 | |
| 4154 | /* we actually need to set 'real' parameters now */ |
| 4155 | if ((fmt->fmt.pix.height * 2) > |
| 4156 | BUZ_MAX_HEIGHT) |
| 4157 | settings.TmpDcm = 1; |
| 4158 | else |
| 4159 | settings.TmpDcm = 2; |
| 4160 | settings.decimation = 0; |
| 4161 | if (fmt->fmt.pix.height <= |
| 4162 | fh->jpg_settings.img_height / 2) |
| 4163 | settings.VerDcm = 2; |
| 4164 | else |
| 4165 | settings.VerDcm = 1; |
| 4166 | if (fmt->fmt.pix.width <= |
| 4167 | fh->jpg_settings.img_width / 4) |
| 4168 | settings.HorDcm = 4; |
| 4169 | else if (fmt->fmt.pix.width <= |
| 4170 | fh->jpg_settings.img_width / 2) |
| 4171 | settings.HorDcm = 2; |
| 4172 | else |
| 4173 | settings.HorDcm = 1; |
| 4174 | if (settings.TmpDcm == 1) |
| 4175 | settings.field_per_buff = 2; |
| 4176 | else |
| 4177 | settings.field_per_buff = 1; |
| 4178 | |
| 4179 | /* check */ |
| 4180 | if ((res = |
| 4181 | zoran_check_jpg_settings(zr, |
| 4182 | &settings))) |
| 4183 | goto tryfmt_unlock_and_return; |
| 4184 | |
| 4185 | /* tell the user what we actually did */ |
| 4186 | fmt->fmt.pix.width = |
| 4187 | settings.img_width / settings.HorDcm; |
| 4188 | fmt->fmt.pix.height = |
| 4189 | settings.img_height * 2 / |
| 4190 | (settings.TmpDcm * settings.VerDcm); |
| 4191 | if (settings.TmpDcm == 1) |
| 4192 | fmt->fmt.pix.field = |
| 4193 | (fh->jpg_settings. |
| 4194 | odd_even ? V4L2_FIELD_SEQ_TB : |
| 4195 | V4L2_FIELD_SEQ_BT); |
| 4196 | else |
| 4197 | fmt->fmt.pix.field = |
| 4198 | (fh->jpg_settings. |
| 4199 | odd_even ? V4L2_FIELD_TOP : |
| 4200 | V4L2_FIELD_BOTTOM); |
| 4201 | |
| 4202 | fmt->fmt.pix.sizeimage = |
| 4203 | zoran_v4l2_calc_bufsize(&settings); |
| 4204 | } else if (fmt->type == |
| 4205 | V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 4206 | int i; |
| 4207 | |
| 4208 | for (i = 0; i < zoran_num_formats; i++) |
| 4209 | if (zoran_formats[i].fourcc == |
| 4210 | fmt->fmt.pix.pixelformat) |
| 4211 | break; |
| 4212 | if (i == zoran_num_formats) { |
| 4213 | res = -EINVAL; |
| 4214 | goto tryfmt_unlock_and_return; |
| 4215 | } |
| 4216 | |
| 4217 | if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) |
| 4218 | fmt->fmt.pix.width = BUZ_MAX_WIDTH; |
| 4219 | if (fmt->fmt.pix.width < BUZ_MIN_WIDTH) |
| 4220 | fmt->fmt.pix.width = BUZ_MIN_WIDTH; |
| 4221 | if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) |
| 4222 | fmt->fmt.pix.height = |
| 4223 | BUZ_MAX_HEIGHT; |
| 4224 | if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT) |
| 4225 | fmt->fmt.pix.height = |
| 4226 | BUZ_MIN_HEIGHT; |
| 4227 | } else { |
| 4228 | res = -EINVAL; |
| 4229 | goto tryfmt_unlock_and_return; |
| 4230 | } |
| 4231 | tryfmt_unlock_and_return: |
| 4232 | up(&zr->resource_lock); |
| 4233 | |
| 4234 | return res; |
| 4235 | break; |
| 4236 | |
| 4237 | default: |
| 4238 | return -EINVAL; |
| 4239 | } |
| 4240 | |
| 4241 | return 0; |
| 4242 | } |
| 4243 | break; |
| 4244 | #endif |
| 4245 | |
| 4246 | default: |
| 4247 | dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n", |
| 4248 | ZR_DEVNAME(zr), cmd); |
| 4249 | return -ENOIOCTLCMD; |
| 4250 | break; |
| 4251 | |
| 4252 | } |
| 4253 | return 0; |
| 4254 | } |
| 4255 | |
| 4256 | |
| 4257 | static int |
| 4258 | zoran_ioctl (struct inode *inode, |
| 4259 | struct file *file, |
| 4260 | unsigned int cmd, |
| 4261 | unsigned long arg) |
| 4262 | { |
| 4263 | return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl); |
| 4264 | } |
| 4265 | |
| 4266 | static unsigned int |
| 4267 | zoran_poll (struct file *file, |
| 4268 | poll_table *wait) |
| 4269 | { |
| 4270 | struct zoran_fh *fh = file->private_data; |
| 4271 | struct zoran *zr = fh->zr; |
| 4272 | wait_queue_head_t *queue = NULL; |
| 4273 | int res = 0, frame; |
| 4274 | |
| 4275 | /* we should check whether buffers are ready to be synced on |
| 4276 | * (w/o waits - O_NONBLOCK) here |
| 4277 | * if ready for read (sync), return POLLIN|POLLRDNORM, |
| 4278 | * if ready for write (sync), return POLLOUT|POLLWRNORM, |
| 4279 | * if error, return POLLERR, |
| 4280 | * if no buffers queued or so, return POLLNVAL |
| 4281 | */ |
| 4282 | |
| 4283 | down(&zr->resource_lock); |
| 4284 | |
| 4285 | switch (fh->map_mode) { |
| 4286 | case ZORAN_MAP_MODE_RAW: |
| 4287 | if (fh->v4l_buffers.active == ZORAN_FREE || |
| 4288 | zr->v4l_pend_head == zr->v4l_pend_tail) { |
| 4289 | dprintk(1, |
| 4290 | "%s: zoran_poll() - no buffers queued\n", |
| 4291 | ZR_DEVNAME(zr)); |
| 4292 | res = POLLNVAL; |
| 4293 | goto poll_unlock_and_return; |
| 4294 | } |
| 4295 | queue = &zr->v4l_capq; |
| 4296 | frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; |
| 4297 | poll_wait(file, queue, wait); |
| 4298 | if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) |
| 4299 | res = POLLIN | POLLRDNORM; |
| 4300 | break; |
| 4301 | |
| 4302 | case ZORAN_MAP_MODE_JPG_REC: |
| 4303 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 4304 | if (fh->jpg_buffers.active == ZORAN_FREE || |
| 4305 | zr->jpg_que_head == zr->jpg_que_tail) { |
| 4306 | dprintk(1, |
| 4307 | "%s: zoran_poll() - no buffers queued\n", |
| 4308 | ZR_DEVNAME(zr)); |
| 4309 | res = POLLNVAL; |
| 4310 | goto poll_unlock_and_return; |
| 4311 | } |
| 4312 | queue = &zr->jpg_capq; |
| 4313 | frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; |
| 4314 | poll_wait(file, queue, wait); |
| 4315 | if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { |
| 4316 | if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) |
| 4317 | res = POLLIN | POLLRDNORM; |
| 4318 | else |
| 4319 | res = POLLOUT | POLLWRNORM; |
| 4320 | } |
| 4321 | break; |
| 4322 | |
| 4323 | default: |
| 4324 | dprintk(1, |
| 4325 | "%s: zoran_poll() - internal error, unknown map_mode=%d\n", |
| 4326 | ZR_DEVNAME(zr), fh->map_mode); |
| 4327 | res = POLLNVAL; |
| 4328 | goto poll_unlock_and_return; |
| 4329 | } |
| 4330 | |
| 4331 | poll_unlock_and_return: |
| 4332 | up(&zr->resource_lock); |
| 4333 | |
| 4334 | return res; |
| 4335 | } |
| 4336 | |
| 4337 | |
| 4338 | /* |
| 4339 | * This maps the buffers to user space. |
| 4340 | * |
| 4341 | * Depending on the state of fh->map_mode |
| 4342 | * the V4L or the MJPEG buffers are mapped |
| 4343 | * per buffer or all together |
| 4344 | * |
| 4345 | * Note that we need to connect to some |
| 4346 | * unmap signal event to unmap the de-allocate |
| 4347 | * the buffer accordingly (zoran_vm_close()) |
| 4348 | */ |
| 4349 | |
| 4350 | static void |
| 4351 | zoran_vm_open (struct vm_area_struct *vma) |
| 4352 | { |
| 4353 | struct zoran_mapping *map = vma->vm_private_data; |
| 4354 | |
| 4355 | map->count++; |
| 4356 | } |
| 4357 | |
| 4358 | static void |
| 4359 | zoran_vm_close (struct vm_area_struct *vma) |
| 4360 | { |
| 4361 | struct zoran_mapping *map = vma->vm_private_data; |
| 4362 | struct file *file = map->file; |
| 4363 | struct zoran_fh *fh = file->private_data; |
| 4364 | struct zoran *zr = fh->zr; |
| 4365 | int i; |
| 4366 | |
| 4367 | map->count--; |
| 4368 | if (map->count == 0) { |
| 4369 | switch (fh->map_mode) { |
| 4370 | case ZORAN_MAP_MODE_JPG_REC: |
| 4371 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 4372 | |
| 4373 | dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n", |
| 4374 | ZR_DEVNAME(zr)); |
| 4375 | |
| 4376 | for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| 4377 | if (fh->jpg_buffers.buffer[i].map == map) { |
| 4378 | fh->jpg_buffers.buffer[i].map = |
| 4379 | NULL; |
| 4380 | } |
| 4381 | } |
| 4382 | kfree(map); |
| 4383 | |
| 4384 | for (i = 0; i < fh->jpg_buffers.num_buffers; i++) |
| 4385 | if (fh->jpg_buffers.buffer[i].map) |
| 4386 | break; |
| 4387 | if (i == fh->jpg_buffers.num_buffers) { |
| 4388 | down(&zr->resource_lock); |
| 4389 | |
| 4390 | if (fh->jpg_buffers.active != ZORAN_FREE) { |
| 4391 | jpg_qbuf(file, -1, zr->codec_mode); |
| 4392 | zr->jpg_buffers.allocated = 0; |
| 4393 | zr->jpg_buffers.active = |
| 4394 | fh->jpg_buffers.active = |
| 4395 | ZORAN_FREE; |
| 4396 | } |
| 4397 | //jpg_fbuffer_free(file); |
| 4398 | fh->jpg_buffers.allocated = 0; |
| 4399 | fh->jpg_buffers.ready_to_be_freed = 1; |
| 4400 | |
| 4401 | up(&zr->resource_lock); |
| 4402 | } |
| 4403 | |
| 4404 | break; |
| 4405 | |
| 4406 | case ZORAN_MAP_MODE_RAW: |
| 4407 | |
| 4408 | dprintk(3, KERN_INFO "%s: munmap(V4L)\n", |
| 4409 | ZR_DEVNAME(zr)); |
| 4410 | |
| 4411 | for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| 4412 | if (fh->v4l_buffers.buffer[i].map == map) { |
| 4413 | /* unqueue/unmap */ |
| 4414 | fh->v4l_buffers.buffer[i].map = |
| 4415 | NULL; |
| 4416 | } |
| 4417 | } |
| 4418 | kfree(map); |
| 4419 | |
| 4420 | for (i = 0; i < fh->v4l_buffers.num_buffers; i++) |
| 4421 | if (fh->v4l_buffers.buffer[i].map) |
| 4422 | break; |
| 4423 | if (i == fh->v4l_buffers.num_buffers) { |
| 4424 | down(&zr->resource_lock); |
| 4425 | |
| 4426 | if (fh->v4l_buffers.active != ZORAN_FREE) { |
| 4427 | zr36057_set_memgrab(zr, 0); |
| 4428 | zr->v4l_buffers.allocated = 0; |
| 4429 | zr->v4l_buffers.active = |
| 4430 | fh->v4l_buffers.active = |
| 4431 | ZORAN_FREE; |
| 4432 | } |
| 4433 | //v4l_fbuffer_free(file); |
| 4434 | fh->v4l_buffers.allocated = 0; |
| 4435 | fh->v4l_buffers.ready_to_be_freed = 1; |
| 4436 | |
| 4437 | up(&zr->resource_lock); |
| 4438 | } |
| 4439 | |
| 4440 | break; |
| 4441 | |
| 4442 | default: |
| 4443 | printk(KERN_ERR |
| 4444 | "%s: munmap() - internal error - unknown map mode %d\n", |
| 4445 | ZR_DEVNAME(zr), fh->map_mode); |
| 4446 | break; |
| 4447 | |
| 4448 | } |
| 4449 | } |
| 4450 | } |
| 4451 | |
| 4452 | static struct vm_operations_struct zoran_vm_ops = { |
| 4453 | .open = zoran_vm_open, |
| 4454 | .close = zoran_vm_close, |
| 4455 | }; |
| 4456 | |
| 4457 | static int |
| 4458 | zoran_mmap (struct file *file, |
| 4459 | struct vm_area_struct *vma) |
| 4460 | { |
| 4461 | struct zoran_fh *fh = file->private_data; |
| 4462 | struct zoran *zr = fh->zr; |
| 4463 | unsigned long size = (vma->vm_end - vma->vm_start); |
| 4464 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; |
| 4465 | int i, j; |
| 4466 | unsigned long page, start = vma->vm_start, todo, pos, fraglen; |
| 4467 | int first, last; |
| 4468 | struct zoran_mapping *map; |
| 4469 | int res = 0; |
| 4470 | |
| 4471 | dprintk(3, |
| 4472 | KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n", |
| 4473 | ZR_DEVNAME(zr), |
| 4474 | fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG", |
| 4475 | vma->vm_start, vma->vm_end, size); |
| 4476 | |
| 4477 | if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || |
| 4478 | !(vma->vm_flags & VM_WRITE)) { |
| 4479 | dprintk(1, |
| 4480 | KERN_ERR |
| 4481 | "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n", |
| 4482 | ZR_DEVNAME(zr)); |
| 4483 | return -EINVAL; |
| 4484 | } |
| 4485 | |
| 4486 | switch (fh->map_mode) { |
| 4487 | |
| 4488 | case ZORAN_MAP_MODE_JPG_REC: |
| 4489 | case ZORAN_MAP_MODE_JPG_PLAY: |
| 4490 | |
| 4491 | /* lock */ |
| 4492 | down(&zr->resource_lock); |
| 4493 | |
| 4494 | /* Map the MJPEG buffers */ |
| 4495 | if (!fh->jpg_buffers.allocated) { |
| 4496 | dprintk(1, |
| 4497 | KERN_ERR |
| 4498 | "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n", |
| 4499 | ZR_DEVNAME(zr)); |
| 4500 | res = -ENOMEM; |
| 4501 | goto jpg_mmap_unlock_and_return; |
| 4502 | } |
| 4503 | |
| 4504 | first = offset / fh->jpg_buffers.buffer_size; |
| 4505 | last = first - 1 + size / fh->jpg_buffers.buffer_size; |
| 4506 | if (offset % fh->jpg_buffers.buffer_size != 0 || |
| 4507 | size % fh->jpg_buffers.buffer_size != 0 || first < 0 || |
| 4508 | last < 0 || first >= fh->jpg_buffers.num_buffers || |
| 4509 | last >= fh->jpg_buffers.num_buffers) { |
| 4510 | dprintk(1, |
| 4511 | KERN_ERR |
| 4512 | "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", |
| 4513 | ZR_DEVNAME(zr), offset, size, |
| 4514 | fh->jpg_buffers.buffer_size, |
| 4515 | fh->jpg_buffers.num_buffers); |
| 4516 | res = -EINVAL; |
| 4517 | goto jpg_mmap_unlock_and_return; |
| 4518 | } |
| 4519 | for (i = first; i <= last; i++) { |
| 4520 | if (fh->jpg_buffers.buffer[i].map) { |
| 4521 | dprintk(1, |
| 4522 | KERN_ERR |
| 4523 | "%s: mmap(MJPEG) - buffer %d already mapped\n", |
| 4524 | ZR_DEVNAME(zr), i); |
| 4525 | res = -EBUSY; |
| 4526 | goto jpg_mmap_unlock_and_return; |
| 4527 | } |
| 4528 | } |
| 4529 | |
| 4530 | /* map these buffers (v4l_buffers[i]) */ |
| 4531 | map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); |
| 4532 | if (!map) { |
| 4533 | res = -ENOMEM; |
| 4534 | goto jpg_mmap_unlock_and_return; |
| 4535 | } |
| 4536 | map->file = file; |
| 4537 | map->count = 1; |
| 4538 | |
| 4539 | vma->vm_ops = &zoran_vm_ops; |
| 4540 | vma->vm_flags |= VM_DONTEXPAND; |
| 4541 | vma->vm_private_data = map; |
| 4542 | |
| 4543 | for (i = first; i <= last; i++) { |
| 4544 | for (j = 0; |
| 4545 | j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| 4546 | j++) { |
| 4547 | fraglen = |
| 4548 | (le32_to_cpu(fh->jpg_buffers.buffer[i]. |
| 4549 | frag_tab[2 * j + 1]) & ~1) << 1; |
| 4550 | todo = size; |
| 4551 | if (todo > fraglen) |
| 4552 | todo = fraglen; |
| 4553 | pos = |
| 4554 | le32_to_cpu((unsigned long) fh->jpg_buffers. |
| 4555 | buffer[i].frag_tab[2 * j]); |
| 4556 | /* should just be pos on i386 */ |
| 4557 | page = virt_to_phys(bus_to_virt(pos)) |
| 4558 | >> PAGE_SHIFT; |
| 4559 | if (remap_pfn_range(vma, start, page, |
| 4560 | todo, PAGE_SHARED)) { |
| 4561 | dprintk(1, |
| 4562 | KERN_ERR |
| 4563 | "%s: zoran_mmap(V4L) - remap_pfn_range failed\n", |
| 4564 | ZR_DEVNAME(zr)); |
| 4565 | res = -EAGAIN; |
| 4566 | goto jpg_mmap_unlock_and_return; |
| 4567 | } |
| 4568 | size -= todo; |
| 4569 | start += todo; |
| 4570 | if (size == 0) |
| 4571 | break; |
| 4572 | if (le32_to_cpu(fh->jpg_buffers.buffer[i]. |
| 4573 | frag_tab[2 * j + 1]) & 1) |
| 4574 | break; /* was last fragment */ |
| 4575 | } |
| 4576 | fh->jpg_buffers.buffer[i].map = map; |
| 4577 | if (size == 0) |
| 4578 | break; |
| 4579 | |
| 4580 | } |
| 4581 | jpg_mmap_unlock_and_return: |
| 4582 | up(&zr->resource_lock); |
| 4583 | |
| 4584 | break; |
| 4585 | |
| 4586 | case ZORAN_MAP_MODE_RAW: |
| 4587 | |
| 4588 | down(&zr->resource_lock); |
| 4589 | |
| 4590 | /* Map the V4L buffers */ |
| 4591 | if (!fh->v4l_buffers.allocated) { |
| 4592 | dprintk(1, |
| 4593 | KERN_ERR |
| 4594 | "%s: zoran_mmap(V4L) - buffers not yet allocated\n", |
| 4595 | ZR_DEVNAME(zr)); |
| 4596 | res = -ENOMEM; |
| 4597 | goto v4l_mmap_unlock_and_return; |
| 4598 | } |
| 4599 | |
| 4600 | first = offset / fh->v4l_buffers.buffer_size; |
| 4601 | last = first - 1 + size / fh->v4l_buffers.buffer_size; |
| 4602 | if (offset % fh->v4l_buffers.buffer_size != 0 || |
| 4603 | size % fh->v4l_buffers.buffer_size != 0 || first < 0 || |
| 4604 | last < 0 || first >= fh->v4l_buffers.num_buffers || |
| 4605 | last >= fh->v4l_buffers.buffer_size) { |
| 4606 | dprintk(1, |
| 4607 | KERN_ERR |
| 4608 | "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", |
| 4609 | ZR_DEVNAME(zr), offset, size, |
| 4610 | fh->v4l_buffers.buffer_size, |
| 4611 | fh->v4l_buffers.num_buffers); |
| 4612 | res = -EINVAL; |
| 4613 | goto v4l_mmap_unlock_and_return; |
| 4614 | } |
| 4615 | for (i = first; i <= last; i++) { |
| 4616 | if (fh->v4l_buffers.buffer[i].map) { |
| 4617 | dprintk(1, |
| 4618 | KERN_ERR |
| 4619 | "%s: mmap(V4L) - buffer %d already mapped\n", |
| 4620 | ZR_DEVNAME(zr), i); |
| 4621 | res = -EBUSY; |
| 4622 | goto v4l_mmap_unlock_and_return; |
| 4623 | } |
| 4624 | } |
| 4625 | |
| 4626 | /* map these buffers (v4l_buffers[i]) */ |
| 4627 | map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); |
| 4628 | if (!map) { |
| 4629 | res = -ENOMEM; |
| 4630 | goto v4l_mmap_unlock_and_return; |
| 4631 | } |
| 4632 | map->file = file; |
| 4633 | map->count = 1; |
| 4634 | |
| 4635 | vma->vm_ops = &zoran_vm_ops; |
| 4636 | vma->vm_flags |= VM_DONTEXPAND; |
| 4637 | vma->vm_private_data = map; |
| 4638 | |
| 4639 | for (i = first; i <= last; i++) { |
| 4640 | todo = size; |
| 4641 | if (todo > fh->v4l_buffers.buffer_size) |
| 4642 | todo = fh->v4l_buffers.buffer_size; |
| 4643 | page = fh->v4l_buffers.buffer[i].fbuffer_phys; |
| 4644 | if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, |
| 4645 | todo, PAGE_SHARED)) { |
| 4646 | dprintk(1, |
| 4647 | KERN_ERR |
| 4648 | "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n", |
| 4649 | ZR_DEVNAME(zr)); |
| 4650 | res = -EAGAIN; |
| 4651 | goto v4l_mmap_unlock_and_return; |
| 4652 | } |
| 4653 | size -= todo; |
| 4654 | start += todo; |
| 4655 | fh->v4l_buffers.buffer[i].map = map; |
| 4656 | if (size == 0) |
| 4657 | break; |
| 4658 | } |
| 4659 | v4l_mmap_unlock_and_return: |
| 4660 | up(&zr->resource_lock); |
| 4661 | |
| 4662 | break; |
| 4663 | |
| 4664 | default: |
| 4665 | dprintk(1, |
| 4666 | KERN_ERR |
| 4667 | "%s: zoran_mmap() - internal error - unknown map mode %d\n", |
| 4668 | ZR_DEVNAME(zr), fh->map_mode); |
| 4669 | break; |
| 4670 | } |
| 4671 | |
| 4672 | return 0; |
| 4673 | } |
| 4674 | |
| 4675 | static struct file_operations zoran_fops = { |
| 4676 | .owner = THIS_MODULE, |
| 4677 | .open = zoran_open, |
| 4678 | .release = zoran_close, |
| 4679 | .ioctl = zoran_ioctl, |
Arnd Bergmann | 0d0fbf8 | 2006-01-09 15:24:57 -0200 | [diff] [blame] | 4680 | .compat_ioctl = v4l_compat_ioctl32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4681 | .llseek = no_llseek, |
| 4682 | .read = zoran_read, |
| 4683 | .write = zoran_write, |
| 4684 | .mmap = zoran_mmap, |
| 4685 | .poll = zoran_poll, |
| 4686 | }; |
| 4687 | |
| 4688 | struct video_device zoran_template __devinitdata = { |
| 4689 | .name = ZORAN_NAME, |
| 4690 | .type = ZORAN_VID_TYPE, |
| 4691 | #ifdef HAVE_V4L2 |
| 4692 | .type2 = ZORAN_V4L2_VID_FLAGS, |
| 4693 | #endif |
| 4694 | .hardware = ZORAN_HARDWARE, |
| 4695 | .fops = &zoran_fops, |
| 4696 | .release = &zoran_vdev_release, |
| 4697 | .minor = -1 |
| 4698 | }; |
| 4699 | |