1 /* 2 3 bttv - Bt848 frame grabber driver 4 5 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de> 6 & Marcus Metzler <mocm@thp.uni-koeln.de> 7 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org> 8 9 some v4l2 code lines are taken from Justin's bttv2 driver which is 10 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za> 11 12 V4L1 removal from: 13 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru> 14 15 Fixes to be fully V4L2 compliant by 16 (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org> 17 18 Cropping and overscan support 19 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at> 20 Sponsored by OPQ Systems AB 21 22 This program is free software; you can redistribute it and/or modify 23 it under the terms of the GNU General Public License as published by 24 the Free Software Foundation; either version 2 of the License, or 25 (at your option) any later version. 26 27 This program is distributed in the hope that it will be useful, 28 but WITHOUT ANY WARRANTY; without even the implied warranty of 29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 30 GNU General Public License for more details. 31 32 You should have received a copy of the GNU General Public License 33 along with this program; if not, write to the Free Software 34 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 35 */ 36 37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 38 39 #include <linux/init.h> 40 #include <linux/module.h> 41 #include <linux/delay.h> 42 #include <linux/slab.h> 43 #include <linux/errno.h> 44 #include <linux/fs.h> 45 #include <linux/kernel.h> 46 #include <linux/sched.h> 47 #include <linux/interrupt.h> 48 #include <linux/kdev_t.h> 49 #include "bttvp.h" 50 #include <media/v4l2-common.h> 51 #include <media/v4l2-ioctl.h> 52 #include <media/v4l2-event.h> 53 #include <media/i2c/tvaudio.h> 54 #include <media/drv-intf/msp3400.h> 55 56 #include <linux/dma-mapping.h> 57 58 #include <asm/io.h> 59 #include <asm/byteorder.h> 60 61 #include <media/i2c/saa6588.h> 62 63 #define BTTV_VERSION "0.9.19" 64 65 unsigned int bttv_num; /* number of Bt848s in use */ 66 struct bttv *bttvs[BTTV_MAX]; 67 68 unsigned int bttv_debug; 69 unsigned int bttv_verbose = 1; 70 unsigned int bttv_gpio; 71 72 /* config variables */ 73 #ifdef __BIG_ENDIAN 74 static unsigned int bigendian=1; 75 #else 76 static unsigned int bigendian; 77 #endif 78 static unsigned int radio[BTTV_MAX]; 79 static unsigned int irq_debug; 80 static unsigned int gbuffers = 8; 81 static unsigned int gbufsize = 0x208000; 82 static unsigned int reset_crop = 1; 83 84 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 85 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 86 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 87 static int debug_latency; 88 static int disable_ir; 89 90 static unsigned int fdsr; 91 92 /* options */ 93 static unsigned int combfilter; 94 static unsigned int lumafilter; 95 static unsigned int automute = 1; 96 static unsigned int chroma_agc; 97 static unsigned int agc_crush = 1; 98 static unsigned int whitecrush_upper = 0xCF; 99 static unsigned int whitecrush_lower = 0x7F; 100 static unsigned int vcr_hack; 101 static unsigned int irq_iswitch; 102 static unsigned int uv_ratio = 50; 103 static unsigned int full_luma_range; 104 static unsigned int coring; 105 106 /* API features (turn on/off stuff for testing) */ 107 static unsigned int v4l2 = 1; 108 109 /* insmod args */ 110 module_param(bttv_verbose, int, 0644); 111 module_param(bttv_gpio, int, 0644); 112 module_param(bttv_debug, int, 0644); 113 module_param(irq_debug, int, 0644); 114 module_param(debug_latency, int, 0644); 115 module_param(disable_ir, int, 0444); 116 117 module_param(fdsr, int, 0444); 118 module_param(gbuffers, int, 0444); 119 module_param(gbufsize, int, 0444); 120 module_param(reset_crop, int, 0444); 121 122 module_param(v4l2, int, 0644); 123 module_param(bigendian, int, 0644); 124 module_param(irq_iswitch, int, 0644); 125 module_param(combfilter, int, 0444); 126 module_param(lumafilter, int, 0444); 127 module_param(automute, int, 0444); 128 module_param(chroma_agc, int, 0444); 129 module_param(agc_crush, int, 0444); 130 module_param(whitecrush_upper, int, 0444); 131 module_param(whitecrush_lower, int, 0444); 132 module_param(vcr_hack, int, 0444); 133 module_param(uv_ratio, int, 0444); 134 module_param(full_luma_range, int, 0444); 135 module_param(coring, int, 0444); 136 137 module_param_array(radio, int, NULL, 0444); 138 module_param_array(video_nr, int, NULL, 0444); 139 module_param_array(radio_nr, int, NULL, 0444); 140 module_param_array(vbi_nr, int, NULL, 0444); 141 142 MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)"); 143 MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian"); 144 MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)"); 145 MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)"); 146 MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)"); 147 MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)"); 148 MODULE_PARM_DESC(disable_ir, "disable infrared remote support"); 149 MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8"); 150 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000"); 151 MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default " 152 "is 1 (yes) for compatibility with older applications"); 153 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)"); 154 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)"); 155 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)"); 156 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207"); 157 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127"); 158 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)"); 159 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler"); 160 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50"); 161 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)"); 162 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)"); 163 MODULE_PARM_DESC(video_nr, "video device numbers"); 164 MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 165 MODULE_PARM_DESC(radio_nr, "radio device numbers"); 166 167 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards"); 168 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr"); 169 MODULE_LICENSE("GPL"); 170 MODULE_VERSION(BTTV_VERSION); 171 172 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0) 173 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1) 174 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2) 175 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3) 176 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4) 177 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5) 178 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6) 179 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7) 180 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8) 181 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9) 182 183 /* ----------------------------------------------------------------------- */ 184 /* sysfs */ 185 186 static ssize_t show_card(struct device *cd, 187 struct device_attribute *attr, char *buf) 188 { 189 struct video_device *vfd = to_video_device(cd); 190 struct bttv *btv = video_get_drvdata(vfd); 191 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); 192 } 193 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL); 194 195 /* ----------------------------------------------------------------------- */ 196 /* dvb auto-load setup */ 197 #if defined(CONFIG_MODULES) && defined(MODULE) 198 static void request_module_async(struct work_struct *work) 199 { 200 request_module("dvb-bt8xx"); 201 } 202 203 static void request_modules(struct bttv *dev) 204 { 205 INIT_WORK(&dev->request_module_wk, request_module_async); 206 schedule_work(&dev->request_module_wk); 207 } 208 209 static void flush_request_modules(struct bttv *dev) 210 { 211 flush_work(&dev->request_module_wk); 212 } 213 #else 214 #define request_modules(dev) 215 #define flush_request_modules(dev) do {} while(0) 216 #endif /* CONFIG_MODULES */ 217 218 219 /* ----------------------------------------------------------------------- */ 220 /* static data */ 221 222 /* special timing tables from conexant... */ 223 static u8 SRAM_Table[][60] = 224 { 225 /* PAL digital input over GPIO[7:0] */ 226 { 227 45, // 45 bytes following 228 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16, 229 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00, 230 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00, 231 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37, 232 0x37,0x00,0xAF,0x21,0x00 233 }, 234 /* NTSC digital input over GPIO[7:0] */ 235 { 236 51, // 51 bytes following 237 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06, 238 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00, 239 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07, 240 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6, 241 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21, 242 0x00, 243 }, 244 // TGB_NTSC392 // quartzsight 245 // This table has been modified to be used for Fusion Rev D 246 { 247 0x2A, // size of table = 42 248 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24, 249 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10, 250 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00, 251 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3, 252 0x20, 0x00 253 } 254 }; 255 256 /* minhdelayx1 first video pixel we can capture on a line and 257 hdelayx1 start of active video, both relative to rising edge of 258 /HRESET pulse (0H) in 1 / fCLKx1. 259 swidth width of active video and 260 totalwidth total line width, both in 1 / fCLKx1. 261 sqwidth total line width in square pixels. 262 vdelay start of active video in 2 * field lines relative to 263 trailing edge of /VRESET pulse (VDELAY register). 264 sheight height of active video in 2 * field lines. 265 extraheight Added to sheight for cropcap.bounds.height only 266 videostart0 ITU-R frame line number of the line corresponding 267 to vdelay in the first field. */ 268 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \ 269 vdelay, sheight, extraheight, videostart0) \ 270 .cropcap.bounds.left = minhdelayx1, \ 271 /* * 2 because vertically we count field lines times two, */ \ 272 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \ 273 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \ 274 /* 4 is a safety margin at the end of the line. */ \ 275 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \ 276 .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \ 277 MIN_VDELAY, \ 278 .cropcap.defrect.left = hdelayx1, \ 279 .cropcap.defrect.top = (videostart0) * 2, \ 280 .cropcap.defrect.width = swidth, \ 281 .cropcap.defrect.height = sheight, \ 282 .cropcap.pixelaspect.numerator = totalwidth, \ 283 .cropcap.pixelaspect.denominator = sqwidth, 284 285 const struct bttv_tvnorm bttv_tvnorms[] = { 286 /* PAL-BDGHI */ 287 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */ 288 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */ 289 { 290 .v4l2_id = V4L2_STD_PAL, 291 .name = "PAL", 292 .Fsc = 35468950, 293 .swidth = 924, 294 .sheight = 576, 295 .totalwidth = 1135, 296 .adelay = 0x7f, 297 .bdelay = 0x72, 298 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), 299 .scaledtwidth = 1135, 300 .hdelayx1 = 186, 301 .hactivex1 = 924, 302 .vdelay = 0x20, 303 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */ 304 .sram = 0, 305 /* ITU-R frame line number of the first VBI line 306 we can capture, of the first and second field. 307 The last line is determined by cropcap.bounds. */ 308 .vbistart = { 7, 320 }, 309 CROPCAP(/* minhdelayx1 */ 68, 310 /* hdelayx1 */ 186, 311 /* Should be (768 * 1135 + 944 / 2) / 944. 312 cropcap.defrect is used for image width 313 checks, so we keep the old value 924. */ 314 /* swidth */ 924, 315 /* totalwidth */ 1135, 316 /* sqwidth */ 944, 317 /* vdelay */ 0x20, 318 /* sheight */ 576, 319 /* bt878 (and bt848?) can capture another 320 line below active video. */ 321 /* extraheight */ 2, 322 /* videostart0 */ 23) 323 },{ 324 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, 325 .name = "NTSC", 326 .Fsc = 28636363, 327 .swidth = 768, 328 .sheight = 480, 329 .totalwidth = 910, 330 .adelay = 0x68, 331 .bdelay = 0x5d, 332 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0), 333 .scaledtwidth = 910, 334 .hdelayx1 = 128, 335 .hactivex1 = 910, 336 .vdelay = 0x1a, 337 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */ 338 .sram = 1, 339 .vbistart = { 10, 273 }, 340 CROPCAP(/* minhdelayx1 */ 68, 341 /* hdelayx1 */ 128, 342 /* Should be (640 * 910 + 780 / 2) / 780? */ 343 /* swidth */ 768, 344 /* totalwidth */ 910, 345 /* sqwidth */ 780, 346 /* vdelay */ 0x1a, 347 /* sheight */ 480, 348 /* extraheight */ 0, 349 /* videostart0 */ 23) 350 },{ 351 .v4l2_id = V4L2_STD_SECAM, 352 .name = "SECAM", 353 .Fsc = 35468950, 354 .swidth = 924, 355 .sheight = 576, 356 .totalwidth = 1135, 357 .adelay = 0x7f, 358 .bdelay = 0xb0, 359 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1), 360 .scaledtwidth = 1135, 361 .hdelayx1 = 186, 362 .hactivex1 = 922, 363 .vdelay = 0x20, 364 .vbipack = 255, 365 .sram = 0, /* like PAL, correct? */ 366 .vbistart = { 7, 320 }, 367 CROPCAP(/* minhdelayx1 */ 68, 368 /* hdelayx1 */ 186, 369 /* swidth */ 924, 370 /* totalwidth */ 1135, 371 /* sqwidth */ 944, 372 /* vdelay */ 0x20, 373 /* sheight */ 576, 374 /* extraheight */ 0, 375 /* videostart0 */ 23) 376 },{ 377 .v4l2_id = V4L2_STD_PAL_Nc, 378 .name = "PAL-Nc", 379 .Fsc = 28636363, 380 .swidth = 640, 381 .sheight = 576, 382 .totalwidth = 910, 383 .adelay = 0x68, 384 .bdelay = 0x5d, 385 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0), 386 .scaledtwidth = 780, 387 .hdelayx1 = 130, 388 .hactivex1 = 734, 389 .vdelay = 0x1a, 390 .vbipack = 144, 391 .sram = -1, 392 .vbistart = { 7, 320 }, 393 CROPCAP(/* minhdelayx1 */ 68, 394 /* hdelayx1 */ 130, 395 /* swidth */ (640 * 910 + 780 / 2) / 780, 396 /* totalwidth */ 910, 397 /* sqwidth */ 780, 398 /* vdelay */ 0x1a, 399 /* sheight */ 576, 400 /* extraheight */ 0, 401 /* videostart0 */ 23) 402 },{ 403 .v4l2_id = V4L2_STD_PAL_M, 404 .name = "PAL-M", 405 .Fsc = 28636363, 406 .swidth = 640, 407 .sheight = 480, 408 .totalwidth = 910, 409 .adelay = 0x68, 410 .bdelay = 0x5d, 411 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0), 412 .scaledtwidth = 780, 413 .hdelayx1 = 135, 414 .hactivex1 = 754, 415 .vdelay = 0x1a, 416 .vbipack = 144, 417 .sram = -1, 418 .vbistart = { 10, 273 }, 419 CROPCAP(/* minhdelayx1 */ 68, 420 /* hdelayx1 */ 135, 421 /* swidth */ (640 * 910 + 780 / 2) / 780, 422 /* totalwidth */ 910, 423 /* sqwidth */ 780, 424 /* vdelay */ 0x1a, 425 /* sheight */ 480, 426 /* extraheight */ 0, 427 /* videostart0 */ 23) 428 },{ 429 .v4l2_id = V4L2_STD_PAL_N, 430 .name = "PAL-N", 431 .Fsc = 35468950, 432 .swidth = 768, 433 .sheight = 576, 434 .totalwidth = 1135, 435 .adelay = 0x7f, 436 .bdelay = 0x72, 437 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1), 438 .scaledtwidth = 944, 439 .hdelayx1 = 186, 440 .hactivex1 = 922, 441 .vdelay = 0x20, 442 .vbipack = 144, 443 .sram = -1, 444 .vbistart = { 7, 320 }, 445 CROPCAP(/* minhdelayx1 */ 68, 446 /* hdelayx1 */ 186, 447 /* swidth */ (768 * 1135 + 944 / 2) / 944, 448 /* totalwidth */ 1135, 449 /* sqwidth */ 944, 450 /* vdelay */ 0x20, 451 /* sheight */ 576, 452 /* extraheight */ 0, 453 /* videostart0 */ 23) 454 },{ 455 .v4l2_id = V4L2_STD_NTSC_M_JP, 456 .name = "NTSC-JP", 457 .Fsc = 28636363, 458 .swidth = 640, 459 .sheight = 480, 460 .totalwidth = 910, 461 .adelay = 0x68, 462 .bdelay = 0x5d, 463 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0), 464 .scaledtwidth = 780, 465 .hdelayx1 = 135, 466 .hactivex1 = 754, 467 .vdelay = 0x16, 468 .vbipack = 144, 469 .sram = -1, 470 .vbistart = { 10, 273 }, 471 CROPCAP(/* minhdelayx1 */ 68, 472 /* hdelayx1 */ 135, 473 /* swidth */ (640 * 910 + 780 / 2) / 780, 474 /* totalwidth */ 910, 475 /* sqwidth */ 780, 476 /* vdelay */ 0x16, 477 /* sheight */ 480, 478 /* extraheight */ 0, 479 /* videostart0 */ 23) 480 },{ 481 /* that one hopefully works with the strange timing 482 * which video recorders produce when playing a NTSC 483 * tape on a PAL TV ... */ 484 .v4l2_id = V4L2_STD_PAL_60, 485 .name = "PAL-60", 486 .Fsc = 35468950, 487 .swidth = 924, 488 .sheight = 480, 489 .totalwidth = 1135, 490 .adelay = 0x7f, 491 .bdelay = 0x72, 492 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), 493 .scaledtwidth = 1135, 494 .hdelayx1 = 186, 495 .hactivex1 = 924, 496 .vdelay = 0x1a, 497 .vbipack = 255, 498 .vtotal = 524, 499 .sram = -1, 500 .vbistart = { 10, 273 }, 501 CROPCAP(/* minhdelayx1 */ 68, 502 /* hdelayx1 */ 186, 503 /* swidth */ 924, 504 /* totalwidth */ 1135, 505 /* sqwidth */ 944, 506 /* vdelay */ 0x1a, 507 /* sheight */ 480, 508 /* extraheight */ 0, 509 /* videostart0 */ 23) 510 } 511 }; 512 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms); 513 514 /* ----------------------------------------------------------------------- */ 515 /* bttv format list 516 packed pixel formats must come first */ 517 static const struct bttv_format formats[] = { 518 { 519 .name = "8 bpp, gray", 520 .fourcc = V4L2_PIX_FMT_GREY, 521 .btformat = BT848_COLOR_FMT_Y8, 522 .depth = 8, 523 .flags = FORMAT_FLAGS_PACKED, 524 },{ 525 .name = "8 bpp, dithered color", 526 .fourcc = V4L2_PIX_FMT_HI240, 527 .btformat = BT848_COLOR_FMT_RGB8, 528 .depth = 8, 529 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER, 530 },{ 531 .name = "15 bpp RGB, le", 532 .fourcc = V4L2_PIX_FMT_RGB555, 533 .btformat = BT848_COLOR_FMT_RGB15, 534 .depth = 16, 535 .flags = FORMAT_FLAGS_PACKED, 536 },{ 537 .name = "15 bpp RGB, be", 538 .fourcc = V4L2_PIX_FMT_RGB555X, 539 .btformat = BT848_COLOR_FMT_RGB15, 540 .btswap = 0x03, /* byteswap */ 541 .depth = 16, 542 .flags = FORMAT_FLAGS_PACKED, 543 },{ 544 .name = "16 bpp RGB, le", 545 .fourcc = V4L2_PIX_FMT_RGB565, 546 .btformat = BT848_COLOR_FMT_RGB16, 547 .depth = 16, 548 .flags = FORMAT_FLAGS_PACKED, 549 },{ 550 .name = "16 bpp RGB, be", 551 .fourcc = V4L2_PIX_FMT_RGB565X, 552 .btformat = BT848_COLOR_FMT_RGB16, 553 .btswap = 0x03, /* byteswap */ 554 .depth = 16, 555 .flags = FORMAT_FLAGS_PACKED, 556 },{ 557 .name = "24 bpp RGB, le", 558 .fourcc = V4L2_PIX_FMT_BGR24, 559 .btformat = BT848_COLOR_FMT_RGB24, 560 .depth = 24, 561 .flags = FORMAT_FLAGS_PACKED, 562 },{ 563 .name = "32 bpp RGB, le", 564 .fourcc = V4L2_PIX_FMT_BGR32, 565 .btformat = BT848_COLOR_FMT_RGB32, 566 .depth = 32, 567 .flags = FORMAT_FLAGS_PACKED, 568 },{ 569 .name = "32 bpp RGB, be", 570 .fourcc = V4L2_PIX_FMT_RGB32, 571 .btformat = BT848_COLOR_FMT_RGB32, 572 .btswap = 0x0f, /* byte+word swap */ 573 .depth = 32, 574 .flags = FORMAT_FLAGS_PACKED, 575 },{ 576 .name = "4:2:2, packed, YUYV", 577 .fourcc = V4L2_PIX_FMT_YUYV, 578 .btformat = BT848_COLOR_FMT_YUY2, 579 .depth = 16, 580 .flags = FORMAT_FLAGS_PACKED, 581 },{ 582 .name = "4:2:2, packed, UYVY", 583 .fourcc = V4L2_PIX_FMT_UYVY, 584 .btformat = BT848_COLOR_FMT_YUY2, 585 .btswap = 0x03, /* byteswap */ 586 .depth = 16, 587 .flags = FORMAT_FLAGS_PACKED, 588 },{ 589 .name = "4:2:2, planar, Y-Cb-Cr", 590 .fourcc = V4L2_PIX_FMT_YUV422P, 591 .btformat = BT848_COLOR_FMT_YCrCb422, 592 .depth = 16, 593 .flags = FORMAT_FLAGS_PLANAR, 594 .hshift = 1, 595 .vshift = 0, 596 },{ 597 .name = "4:2:0, planar, Y-Cb-Cr", 598 .fourcc = V4L2_PIX_FMT_YUV420, 599 .btformat = BT848_COLOR_FMT_YCrCb422, 600 .depth = 12, 601 .flags = FORMAT_FLAGS_PLANAR, 602 .hshift = 1, 603 .vshift = 1, 604 },{ 605 .name = "4:2:0, planar, Y-Cr-Cb", 606 .fourcc = V4L2_PIX_FMT_YVU420, 607 .btformat = BT848_COLOR_FMT_YCrCb422, 608 .depth = 12, 609 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, 610 .hshift = 1, 611 .vshift = 1, 612 },{ 613 .name = "4:1:1, planar, Y-Cb-Cr", 614 .fourcc = V4L2_PIX_FMT_YUV411P, 615 .btformat = BT848_COLOR_FMT_YCrCb411, 616 .depth = 12, 617 .flags = FORMAT_FLAGS_PLANAR, 618 .hshift = 2, 619 .vshift = 0, 620 },{ 621 .name = "4:1:0, planar, Y-Cb-Cr", 622 .fourcc = V4L2_PIX_FMT_YUV410, 623 .btformat = BT848_COLOR_FMT_YCrCb411, 624 .depth = 9, 625 .flags = FORMAT_FLAGS_PLANAR, 626 .hshift = 2, 627 .vshift = 2, 628 },{ 629 .name = "4:1:0, planar, Y-Cr-Cb", 630 .fourcc = V4L2_PIX_FMT_YVU410, 631 .btformat = BT848_COLOR_FMT_YCrCb411, 632 .depth = 9, 633 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, 634 .hshift = 2, 635 .vshift = 2, 636 },{ 637 .name = "raw scanlines", 638 .fourcc = -1, 639 .btformat = BT848_COLOR_FMT_RAW, 640 .depth = 8, 641 .flags = FORMAT_FLAGS_RAW, 642 } 643 }; 644 static const unsigned int FORMATS = ARRAY_SIZE(formats); 645 646 /* ----------------------------------------------------------------------- */ 647 /* resource management */ 648 649 /* 650 RESOURCE_ allocated by freed by 651 652 VIDEO_READ bttv_read 1) bttv_read 2) 653 654 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF 655 VIDIOC_QBUF 1) bttv_release 656 VIDIOCMCAPTURE 1) 657 658 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off 659 VIDIOC_OVERLAY on VIDIOC_OVERLAY off 660 3) bttv_release 661 662 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF 663 VIDIOC_QBUF 1) bttv_release 664 bttv_read, bttv_poll 1) 4) 665 666 1) The resource must be allocated when we enter buffer prepare functions 667 and remain allocated while buffers are in the DMA queue. 668 2) This is a single frame read. 669 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when 670 RESOURCE_OVERLAY is allocated. 671 4) This is a continuous read, implies VIDIOC_STREAMON. 672 673 Note this driver permits video input and standard changes regardless if 674 resources are allocated. 675 */ 676 677 #define VBI_RESOURCES (RESOURCE_VBI) 678 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \ 679 RESOURCE_VIDEO_STREAM | \ 680 RESOURCE_OVERLAY) 681 682 static 683 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit) 684 { 685 int xbits; /* mutual exclusive resources */ 686 687 if (fh->resources & bit) 688 /* have it already allocated */ 689 return 1; 690 691 xbits = bit; 692 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM)) 693 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM; 694 695 /* is it free? */ 696 if (btv->resources & xbits) { 697 /* no, someone else uses it */ 698 goto fail; 699 } 700 701 if ((bit & VIDEO_RESOURCES) 702 && 0 == (btv->resources & VIDEO_RESOURCES)) { 703 /* Do crop - use current, don't - use default parameters. */ 704 __s32 top = btv->crop[!!fh->do_crop].rect.top; 705 706 if (btv->vbi_end > top) 707 goto fail; 708 709 /* We cannot capture the same line as video and VBI data. 710 Claim scan lines crop[].rect.top to bottom. */ 711 btv->crop_start = top; 712 } else if (bit & VBI_RESOURCES) { 713 __s32 end = fh->vbi_fmt.end; 714 715 if (end > btv->crop_start) 716 goto fail; 717 718 /* Claim scan lines above fh->vbi_fmt.end. */ 719 btv->vbi_end = end; 720 } 721 722 /* it's free, grab it */ 723 fh->resources |= bit; 724 btv->resources |= bit; 725 return 1; 726 727 fail: 728 return 0; 729 } 730 731 static 732 int check_btres(struct bttv_fh *fh, int bit) 733 { 734 return (fh->resources & bit); 735 } 736 737 static 738 int locked_btres(struct bttv *btv, int bit) 739 { 740 return (btv->resources & bit); 741 } 742 743 /* Call with btv->lock down. */ 744 static void 745 disclaim_vbi_lines(struct bttv *btv) 746 { 747 btv->vbi_end = 0; 748 } 749 750 /* Call with btv->lock down. */ 751 static void 752 disclaim_video_lines(struct bttv *btv) 753 { 754 const struct bttv_tvnorm *tvnorm; 755 u8 crop; 756 757 tvnorm = &bttv_tvnorms[btv->tvnorm]; 758 btv->crop_start = tvnorm->cropcap.bounds.top 759 + tvnorm->cropcap.bounds.height; 760 761 /* VBI capturing ends at VDELAY, start of video capturing, no 762 matter how many lines the VBI RISC program expects. When video 763 capturing is off, it shall no longer "preempt" VBI capturing, 764 so we set VDELAY to maximum. */ 765 crop = btread(BT848_E_CROP) | 0xc0; 766 btwrite(crop, BT848_E_CROP); 767 btwrite(0xfe, BT848_E_VDELAY_LO); 768 btwrite(crop, BT848_O_CROP); 769 btwrite(0xfe, BT848_O_VDELAY_LO); 770 } 771 772 static 773 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits) 774 { 775 if ((fh->resources & bits) != bits) { 776 /* trying to free resources not allocated by us ... */ 777 pr_err("BUG! (btres)\n"); 778 } 779 fh->resources &= ~bits; 780 btv->resources &= ~bits; 781 782 bits = btv->resources; 783 784 if (0 == (bits & VIDEO_RESOURCES)) 785 disclaim_video_lines(btv); 786 787 if (0 == (bits & VBI_RESOURCES)) 788 disclaim_vbi_lines(btv); 789 } 790 791 /* ----------------------------------------------------------------------- */ 792 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */ 793 794 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C 795 PLL_X = Reference pre-divider (0=1, 1=2) 796 PLL_C = Post divider (0=6, 1=4) 797 PLL_I = Integer input 798 PLL_F = Fractional input 799 800 F_input = 28.636363 MHz: 801 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0 802 */ 803 804 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout) 805 { 806 unsigned char fl, fh, fi; 807 808 /* prevent overflows */ 809 fin/=4; 810 fout/=4; 811 812 fout*=12; 813 fi=fout/fin; 814 815 fout=(fout%fin)*256; 816 fh=fout/fin; 817 818 fout=(fout%fin)*256; 819 fl=fout/fin; 820 821 btwrite(fl, BT848_PLL_F_LO); 822 btwrite(fh, BT848_PLL_F_HI); 823 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI); 824 } 825 826 static void set_pll(struct bttv *btv) 827 { 828 int i; 829 830 if (!btv->pll.pll_crystal) 831 return; 832 833 if (btv->pll.pll_ofreq == btv->pll.pll_current) { 834 dprintk("%d: PLL: no change required\n", btv->c.nr); 835 return; 836 } 837 838 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) { 839 /* no PLL needed */ 840 if (btv->pll.pll_current == 0) 841 return; 842 if (bttv_verbose) 843 pr_info("%d: PLL can sleep, using XTAL (%d)\n", 844 btv->c.nr, btv->pll.pll_ifreq); 845 btwrite(0x00,BT848_TGCTRL); 846 btwrite(0x00,BT848_PLL_XCI); 847 btv->pll.pll_current = 0; 848 return; 849 } 850 851 if (bttv_verbose) 852 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n", 853 btv->c.nr, 854 btv->pll.pll_ifreq, btv->pll.pll_ofreq); 855 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq); 856 857 for (i=0; i<10; i++) { 858 /* Let other people run while the PLL stabilizes */ 859 msleep(10); 860 861 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) { 862 btwrite(0,BT848_DSTATUS); 863 } else { 864 btwrite(0x08,BT848_TGCTRL); 865 btv->pll.pll_current = btv->pll.pll_ofreq; 866 if (bttv_verbose) 867 pr_info("PLL set ok\n"); 868 return; 869 } 870 } 871 btv->pll.pll_current = -1; 872 if (bttv_verbose) 873 pr_info("Setting PLL failed\n"); 874 return; 875 } 876 877 /* used to switch between the bt848's analog/digital video capture modes */ 878 static void bt848A_set_timing(struct bttv *btv) 879 { 880 int i, len; 881 int table_idx = bttv_tvnorms[btv->tvnorm].sram; 882 int fsc = bttv_tvnorms[btv->tvnorm].Fsc; 883 884 if (btv->input == btv->dig) { 885 dprintk("%d: load digital timing table (table_idx=%d)\n", 886 btv->c.nr,table_idx); 887 888 /* timing change...reset timing generator address */ 889 btwrite(0x00, BT848_TGCTRL); 890 btwrite(0x02, BT848_TGCTRL); 891 btwrite(0x00, BT848_TGCTRL); 892 893 len=SRAM_Table[table_idx][0]; 894 for(i = 1; i <= len; i++) 895 btwrite(SRAM_Table[table_idx][i],BT848_TGLB); 896 btv->pll.pll_ofreq = 27000000; 897 898 set_pll(btv); 899 btwrite(0x11, BT848_TGCTRL); 900 btwrite(0x41, BT848_DVSIF); 901 } else { 902 btv->pll.pll_ofreq = fsc; 903 set_pll(btv); 904 btwrite(0x0, BT848_DVSIF); 905 } 906 } 907 908 /* ----------------------------------------------------------------------- */ 909 910 static void bt848_bright(struct bttv *btv, int bright) 911 { 912 int value; 913 914 // printk("set bright: %d\n", bright); // DEBUG 915 btv->bright = bright; 916 917 /* We want -128 to 127 we get 0-65535 */ 918 value = (bright >> 8) - 128; 919 btwrite(value & 0xff, BT848_BRIGHT); 920 } 921 922 static void bt848_hue(struct bttv *btv, int hue) 923 { 924 int value; 925 926 btv->hue = hue; 927 928 /* -128 to 127 */ 929 value = (hue >> 8) - 128; 930 btwrite(value & 0xff, BT848_HUE); 931 } 932 933 static void bt848_contrast(struct bttv *btv, int cont) 934 { 935 int value,hibit; 936 937 btv->contrast = cont; 938 939 /* 0-511 */ 940 value = (cont >> 7); 941 hibit = (value >> 6) & 4; 942 btwrite(value & 0xff, BT848_CONTRAST_LO); 943 btaor(hibit, ~4, BT848_E_CONTROL); 944 btaor(hibit, ~4, BT848_O_CONTROL); 945 } 946 947 static void bt848_sat(struct bttv *btv, int color) 948 { 949 int val_u,val_v,hibits; 950 951 btv->saturation = color; 952 953 /* 0-511 for the color */ 954 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7; 955 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254; 956 hibits = (val_u >> 7) & 2; 957 hibits |= (val_v >> 8) & 1; 958 btwrite(val_u & 0xff, BT848_SAT_U_LO); 959 btwrite(val_v & 0xff, BT848_SAT_V_LO); 960 btaor(hibits, ~3, BT848_E_CONTROL); 961 btaor(hibits, ~3, BT848_O_CONTROL); 962 } 963 964 /* ----------------------------------------------------------------------- */ 965 966 static int 967 video_mux(struct bttv *btv, unsigned int input) 968 { 969 int mux,mask2; 970 971 if (input >= bttv_tvcards[btv->c.type].video_inputs) 972 return -EINVAL; 973 974 /* needed by RemoteVideo MX */ 975 mask2 = bttv_tvcards[btv->c.type].gpiomask2; 976 if (mask2) 977 gpio_inout(mask2,mask2); 978 979 if (input == btv->svhs) { 980 btor(BT848_CONTROL_COMP, BT848_E_CONTROL); 981 btor(BT848_CONTROL_COMP, BT848_O_CONTROL); 982 } else { 983 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL); 984 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL); 985 } 986 mux = bttv_muxsel(btv, input); 987 btaor(mux<<5, ~(3<<5), BT848_IFORM); 988 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux); 989 990 /* card specific hook */ 991 if(bttv_tvcards[btv->c.type].muxsel_hook) 992 bttv_tvcards[btv->c.type].muxsel_hook (btv, input); 993 return 0; 994 } 995 996 static char *audio_modes[] = { 997 "audio: tuner", "audio: radio", "audio: extern", 998 "audio: intern", "audio: mute" 999 }; 1000 1001 static void 1002 audio_mux_gpio(struct bttv *btv, int input, int mute) 1003 { 1004 int gpio_val, signal, mute_gpio; 1005 1006 gpio_inout(bttv_tvcards[btv->c.type].gpiomask, 1007 bttv_tvcards[btv->c.type].gpiomask); 1008 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC; 1009 1010 /* automute */ 1011 mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users) 1012 && !btv->has_radio_tuner); 1013 1014 if (mute_gpio) 1015 gpio_val = bttv_tvcards[btv->c.type].gpiomute; 1016 else 1017 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input]; 1018 1019 switch (btv->c.type) { 1020 case BTTV_BOARD_VOODOOTV_FM: 1021 case BTTV_BOARD_VOODOOTV_200: 1022 gpio_val = bttv_tda9880_setnorm(btv, gpio_val); 1023 break; 1024 1025 default: 1026 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val); 1027 } 1028 1029 if (bttv_gpio) 1030 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]); 1031 } 1032 1033 static int 1034 audio_mute(struct bttv *btv, int mute) 1035 { 1036 struct v4l2_ctrl *ctrl; 1037 1038 audio_mux_gpio(btv, btv->audio_input, mute); 1039 1040 if (btv->sd_msp34xx) { 1041 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1042 if (ctrl) 1043 v4l2_ctrl_s_ctrl(ctrl, mute); 1044 } 1045 if (btv->sd_tvaudio) { 1046 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1047 if (ctrl) 1048 v4l2_ctrl_s_ctrl(ctrl, mute); 1049 } 1050 if (btv->sd_tda7432) { 1051 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1052 if (ctrl) 1053 v4l2_ctrl_s_ctrl(ctrl, mute); 1054 } 1055 return 0; 1056 } 1057 1058 static int 1059 audio_input(struct bttv *btv, int input) 1060 { 1061 audio_mux_gpio(btv, input, btv->mute); 1062 1063 if (btv->sd_msp34xx) { 1064 u32 in; 1065 1066 /* Note: the inputs tuner/radio/extern/intern are translated 1067 to msp routings. This assumes common behavior for all msp3400 1068 based TV cards. When this assumption fails, then the 1069 specific MSP routing must be added to the card table. 1070 For now this is sufficient. */ 1071 switch (input) { 1072 case TVAUDIO_INPUT_RADIO: 1073 /* Some boards need the msp do to the radio demod */ 1074 if (btv->radio_uses_msp_demodulator) { 1075 in = MSP_INPUT_DEFAULT; 1076 break; 1077 } 1078 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, 1079 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1080 break; 1081 case TVAUDIO_INPUT_EXTERN: 1082 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1, 1083 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1084 break; 1085 case TVAUDIO_INPUT_INTERN: 1086 /* Yes, this is the same input as for RADIO. I doubt 1087 if this is ever used. The only board with an INTERN 1088 input is the BTTV_BOARD_AVERMEDIA98. I wonder how 1089 that was tested. My guess is that the whole INTERN 1090 input does not work. */ 1091 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, 1092 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1093 break; 1094 case TVAUDIO_INPUT_TUNER: 1095 default: 1096 /* This is the only card that uses TUNER2, and afaik, 1097 is the only difference between the VOODOOTV_FM 1098 and VOODOOTV_200 */ 1099 if (btv->c.type == BTTV_BOARD_VOODOOTV_200) 1100 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \ 1101 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER); 1102 else 1103 in = MSP_INPUT_DEFAULT; 1104 break; 1105 } 1106 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing, 1107 in, MSP_OUTPUT_DEFAULT, 0); 1108 } 1109 if (btv->sd_tvaudio) { 1110 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing, 1111 input, 0, 0); 1112 } 1113 return 0; 1114 } 1115 1116 static void 1117 bttv_crop_calc_limits(struct bttv_crop *c) 1118 { 1119 /* Scale factor min. 1:1, max. 16:1. Min. image size 1120 48 x 32. Scaled width must be a multiple of 4. */ 1121 1122 if (1) { 1123 /* For bug compatibility with VIDIOCGCAP and image 1124 size checks in earlier driver versions. */ 1125 c->min_scaled_width = 48; 1126 c->min_scaled_height = 32; 1127 } else { 1128 c->min_scaled_width = 1129 (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3; 1130 c->min_scaled_height = 1131 max_t(unsigned int, 32, c->rect.height >> 4); 1132 } 1133 1134 c->max_scaled_width = c->rect.width & ~3; 1135 c->max_scaled_height = c->rect.height; 1136 } 1137 1138 static void 1139 bttv_crop_reset(struct bttv_crop *c, unsigned int norm) 1140 { 1141 c->rect = bttv_tvnorms[norm].cropcap.defrect; 1142 bttv_crop_calc_limits(c); 1143 } 1144 1145 /* Call with btv->lock down. */ 1146 static int 1147 set_tvnorm(struct bttv *btv, unsigned int norm) 1148 { 1149 const struct bttv_tvnorm *tvnorm; 1150 v4l2_std_id id; 1151 1152 BUG_ON(norm >= BTTV_TVNORMS); 1153 BUG_ON(btv->tvnorm >= BTTV_TVNORMS); 1154 1155 tvnorm = &bttv_tvnorms[norm]; 1156 1157 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap, 1158 sizeof (tvnorm->cropcap))) { 1159 bttv_crop_reset(&btv->crop[0], norm); 1160 btv->crop[1] = btv->crop[0]; /* current = default */ 1161 1162 if (0 == (btv->resources & VIDEO_RESOURCES)) { 1163 btv->crop_start = tvnorm->cropcap.bounds.top 1164 + tvnorm->cropcap.bounds.height; 1165 } 1166 } 1167 1168 btv->tvnorm = norm; 1169 1170 btwrite(tvnorm->adelay, BT848_ADELAY); 1171 btwrite(tvnorm->bdelay, BT848_BDELAY); 1172 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH), 1173 BT848_IFORM); 1174 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE); 1175 btwrite(1, BT848_VBI_PACK_DEL); 1176 bt848A_set_timing(btv); 1177 1178 switch (btv->c.type) { 1179 case BTTV_BOARD_VOODOOTV_FM: 1180 case BTTV_BOARD_VOODOOTV_200: 1181 bttv_tda9880_setnorm(btv, gpio_read()); 1182 break; 1183 } 1184 id = tvnorm->v4l2_id; 1185 bttv_call_all(btv, video, s_std, id); 1186 1187 return 0; 1188 } 1189 1190 /* Call with btv->lock down. */ 1191 static void 1192 set_input(struct bttv *btv, unsigned int input, unsigned int norm) 1193 { 1194 unsigned long flags; 1195 1196 btv->input = input; 1197 if (irq_iswitch) { 1198 spin_lock_irqsave(&btv->s_lock,flags); 1199 if (btv->curr.frame_irq) { 1200 /* active capture -> delayed input switch */ 1201 btv->new_input = input; 1202 } else { 1203 video_mux(btv,input); 1204 } 1205 spin_unlock_irqrestore(&btv->s_lock,flags); 1206 } else { 1207 video_mux(btv,input); 1208 } 1209 btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ? 1210 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN; 1211 audio_input(btv, btv->audio_input); 1212 set_tvnorm(btv, norm); 1213 } 1214 1215 static void init_irqreg(struct bttv *btv) 1216 { 1217 /* clear status */ 1218 btwrite(0xfffffUL, BT848_INT_STAT); 1219 1220 if (bttv_tvcards[btv->c.type].no_video) { 1221 /* i2c only */ 1222 btwrite(BT848_INT_I2CDONE, 1223 BT848_INT_MASK); 1224 } else { 1225 /* full video */ 1226 btwrite((btv->triton1) | 1227 (btv->gpioirq ? BT848_INT_GPINT : 0) | 1228 BT848_INT_SCERR | 1229 (fdsr ? BT848_INT_FDSR : 0) | 1230 BT848_INT_RISCI | BT848_INT_OCERR | 1231 BT848_INT_FMTCHG|BT848_INT_HLOCK| 1232 BT848_INT_I2CDONE, 1233 BT848_INT_MASK); 1234 } 1235 } 1236 1237 static void init_bt848(struct bttv *btv) 1238 { 1239 if (bttv_tvcards[btv->c.type].no_video) { 1240 /* very basic init only */ 1241 init_irqreg(btv); 1242 return; 1243 } 1244 1245 btwrite(0x00, BT848_CAP_CTL); 1246 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL); 1247 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM); 1248 1249 /* set planar and packed mode trigger points and */ 1250 /* set rising edge of inverted GPINTR pin as irq trigger */ 1251 btwrite(BT848_GPIO_DMA_CTL_PKTP_32| 1252 BT848_GPIO_DMA_CTL_PLTP1_16| 1253 BT848_GPIO_DMA_CTL_PLTP23_16| 1254 BT848_GPIO_DMA_CTL_GPINTC| 1255 BT848_GPIO_DMA_CTL_GPINTI, 1256 BT848_GPIO_DMA_CTL); 1257 1258 btwrite(0x20, BT848_E_VSCALE_HI); 1259 btwrite(0x20, BT848_O_VSCALE_HI); 1260 1261 v4l2_ctrl_handler_setup(&btv->ctrl_handler); 1262 1263 /* interrupt */ 1264 init_irqreg(btv); 1265 } 1266 1267 static void bttv_reinit_bt848(struct bttv *btv) 1268 { 1269 unsigned long flags; 1270 1271 if (bttv_verbose) 1272 pr_info("%d: reset, reinitialize\n", btv->c.nr); 1273 spin_lock_irqsave(&btv->s_lock,flags); 1274 btv->errors=0; 1275 bttv_set_dma(btv,0); 1276 spin_unlock_irqrestore(&btv->s_lock,flags); 1277 1278 init_bt848(btv); 1279 btv->pll.pll_current = -1; 1280 set_input(btv, btv->input, btv->tvnorm); 1281 } 1282 1283 static int bttv_s_ctrl(struct v4l2_ctrl *c) 1284 { 1285 struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler); 1286 int val; 1287 1288 switch (c->id) { 1289 case V4L2_CID_BRIGHTNESS: 1290 bt848_bright(btv, c->val); 1291 break; 1292 case V4L2_CID_HUE: 1293 bt848_hue(btv, c->val); 1294 break; 1295 case V4L2_CID_CONTRAST: 1296 bt848_contrast(btv, c->val); 1297 break; 1298 case V4L2_CID_SATURATION: 1299 bt848_sat(btv, c->val); 1300 break; 1301 case V4L2_CID_COLOR_KILLER: 1302 if (c->val) { 1303 btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP); 1304 btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP); 1305 } else { 1306 btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP); 1307 btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP); 1308 } 1309 break; 1310 case V4L2_CID_AUDIO_MUTE: 1311 audio_mute(btv, c->val); 1312 btv->mute = c->val; 1313 break; 1314 case V4L2_CID_AUDIO_VOLUME: 1315 btv->volume_gpio(btv, c->val); 1316 break; 1317 1318 case V4L2_CID_CHROMA_AGC: 1319 val = c->val ? BT848_SCLOOP_CAGC : 0; 1320 btwrite(val, BT848_E_SCLOOP); 1321 btwrite(val, BT848_O_SCLOOP); 1322 break; 1323 case V4L2_CID_PRIVATE_COMBFILTER: 1324 btv->opt_combfilter = c->val; 1325 break; 1326 case V4L2_CID_PRIVATE_LUMAFILTER: 1327 if (c->val) { 1328 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL); 1329 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL); 1330 } else { 1331 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL); 1332 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL); 1333 } 1334 break; 1335 case V4L2_CID_PRIVATE_AUTOMUTE: 1336 btv->opt_automute = c->val; 1337 break; 1338 case V4L2_CID_PRIVATE_AGC_CRUSH: 1339 btwrite(BT848_ADC_RESERVED | 1340 (c->val ? BT848_ADC_CRUSH : 0), 1341 BT848_ADC); 1342 break; 1343 case V4L2_CID_PRIVATE_VCR_HACK: 1344 btv->opt_vcr_hack = c->val; 1345 break; 1346 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER: 1347 btwrite(c->val, BT848_WC_UP); 1348 break; 1349 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER: 1350 btwrite(c->val, BT848_WC_DOWN); 1351 break; 1352 case V4L2_CID_PRIVATE_UV_RATIO: 1353 btv->opt_uv_ratio = c->val; 1354 bt848_sat(btv, btv->saturation); 1355 break; 1356 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE: 1357 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM); 1358 break; 1359 case V4L2_CID_PRIVATE_CORING: 1360 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM); 1361 break; 1362 default: 1363 return -EINVAL; 1364 } 1365 return 0; 1366 } 1367 1368 /* ----------------------------------------------------------------------- */ 1369 1370 static const struct v4l2_ctrl_ops bttv_ctrl_ops = { 1371 .s_ctrl = bttv_s_ctrl, 1372 }; 1373 1374 static struct v4l2_ctrl_config bttv_ctrl_combfilter = { 1375 .ops = &bttv_ctrl_ops, 1376 .id = V4L2_CID_PRIVATE_COMBFILTER, 1377 .name = "Comb Filter", 1378 .type = V4L2_CTRL_TYPE_BOOLEAN, 1379 .min = 0, 1380 .max = 1, 1381 .step = 1, 1382 .def = 1, 1383 }; 1384 1385 static struct v4l2_ctrl_config bttv_ctrl_automute = { 1386 .ops = &bttv_ctrl_ops, 1387 .id = V4L2_CID_PRIVATE_AUTOMUTE, 1388 .name = "Auto Mute", 1389 .type = V4L2_CTRL_TYPE_BOOLEAN, 1390 .min = 0, 1391 .max = 1, 1392 .step = 1, 1393 .def = 1, 1394 }; 1395 1396 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = { 1397 .ops = &bttv_ctrl_ops, 1398 .id = V4L2_CID_PRIVATE_LUMAFILTER, 1399 .name = "Luma Decimation Filter", 1400 .type = V4L2_CTRL_TYPE_BOOLEAN, 1401 .min = 0, 1402 .max = 1, 1403 .step = 1, 1404 .def = 1, 1405 }; 1406 1407 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = { 1408 .ops = &bttv_ctrl_ops, 1409 .id = V4L2_CID_PRIVATE_AGC_CRUSH, 1410 .name = "AGC Crush", 1411 .type = V4L2_CTRL_TYPE_BOOLEAN, 1412 .min = 0, 1413 .max = 1, 1414 .step = 1, 1415 .def = 1, 1416 }; 1417 1418 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = { 1419 .ops = &bttv_ctrl_ops, 1420 .id = V4L2_CID_PRIVATE_VCR_HACK, 1421 .name = "VCR Hack", 1422 .type = V4L2_CTRL_TYPE_BOOLEAN, 1423 .min = 0, 1424 .max = 1, 1425 .step = 1, 1426 .def = 1, 1427 }; 1428 1429 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = { 1430 .ops = &bttv_ctrl_ops, 1431 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER, 1432 .name = "Whitecrush Lower", 1433 .type = V4L2_CTRL_TYPE_INTEGER, 1434 .min = 0, 1435 .max = 255, 1436 .step = 1, 1437 .def = 0x7f, 1438 }; 1439 1440 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = { 1441 .ops = &bttv_ctrl_ops, 1442 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER, 1443 .name = "Whitecrush Upper", 1444 .type = V4L2_CTRL_TYPE_INTEGER, 1445 .min = 0, 1446 .max = 255, 1447 .step = 1, 1448 .def = 0xcf, 1449 }; 1450 1451 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = { 1452 .ops = &bttv_ctrl_ops, 1453 .id = V4L2_CID_PRIVATE_UV_RATIO, 1454 .name = "UV Ratio", 1455 .type = V4L2_CTRL_TYPE_INTEGER, 1456 .min = 0, 1457 .max = 100, 1458 .step = 1, 1459 .def = 50, 1460 }; 1461 1462 static struct v4l2_ctrl_config bttv_ctrl_full_luma = { 1463 .ops = &bttv_ctrl_ops, 1464 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE, 1465 .name = "Full Luma Range", 1466 .type = V4L2_CTRL_TYPE_BOOLEAN, 1467 .min = 0, 1468 .max = 1, 1469 .step = 1, 1470 }; 1471 1472 static struct v4l2_ctrl_config bttv_ctrl_coring = { 1473 .ops = &bttv_ctrl_ops, 1474 .id = V4L2_CID_PRIVATE_CORING, 1475 .name = "Coring", 1476 .type = V4L2_CTRL_TYPE_INTEGER, 1477 .min = 0, 1478 .max = 3, 1479 .step = 1, 1480 }; 1481 1482 1483 /* ----------------------------------------------------------------------- */ 1484 1485 void bttv_gpio_tracking(struct bttv *btv, char *comment) 1486 { 1487 unsigned int outbits, data; 1488 outbits = btread(BT848_GPIO_OUT_EN); 1489 data = btread(BT848_GPIO_DATA); 1490 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n", 1491 btv->c.nr, outbits, data & outbits, data & ~outbits, comment); 1492 } 1493 1494 static void bttv_field_count(struct bttv *btv) 1495 { 1496 int need_count = 0; 1497 1498 if (btv->users) 1499 need_count++; 1500 1501 if (need_count) { 1502 /* start field counter */ 1503 btor(BT848_INT_VSYNC,BT848_INT_MASK); 1504 } else { 1505 /* stop field counter */ 1506 btand(~BT848_INT_VSYNC,BT848_INT_MASK); 1507 btv->field_count = 0; 1508 } 1509 } 1510 1511 static const struct bttv_format* 1512 format_by_fourcc(int fourcc) 1513 { 1514 unsigned int i; 1515 1516 for (i = 0; i < FORMATS; i++) { 1517 if (-1 == formats[i].fourcc) 1518 continue; 1519 if (formats[i].fourcc == fourcc) 1520 return formats+i; 1521 } 1522 return NULL; 1523 } 1524 1525 /* ----------------------------------------------------------------------- */ 1526 /* misc helpers */ 1527 1528 static int 1529 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh, 1530 struct bttv_buffer *new) 1531 { 1532 struct bttv_buffer *old; 1533 unsigned long flags; 1534 1535 dprintk("switch_overlay: enter [new=%p]\n", new); 1536 if (new) 1537 new->vb.state = VIDEOBUF_DONE; 1538 spin_lock_irqsave(&btv->s_lock,flags); 1539 old = btv->screen; 1540 btv->screen = new; 1541 btv->loop_irq |= 1; 1542 bttv_set_dma(btv, 0x03); 1543 spin_unlock_irqrestore(&btv->s_lock,flags); 1544 if (NULL != old) { 1545 dprintk("switch_overlay: old=%p state is %d\n", 1546 old, old->vb.state); 1547 bttv_dma_free(&fh->cap,btv, old); 1548 kfree(old); 1549 } 1550 if (NULL == new) 1551 free_btres_lock(btv,fh,RESOURCE_OVERLAY); 1552 dprintk("switch_overlay: done\n"); 1553 return 0; 1554 } 1555 1556 /* ----------------------------------------------------------------------- */ 1557 /* video4linux (1) interface */ 1558 1559 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv, 1560 struct bttv_buffer *buf, 1561 const struct bttv_format *fmt, 1562 unsigned int width, unsigned int height, 1563 enum v4l2_field field) 1564 { 1565 struct bttv_fh *fh = q->priv_data; 1566 int redo_dma_risc = 0; 1567 struct bttv_crop c; 1568 int norm; 1569 int rc; 1570 1571 /* check settings */ 1572 if (NULL == fmt) 1573 return -EINVAL; 1574 if (fmt->btformat == BT848_COLOR_FMT_RAW) { 1575 width = RAW_BPL; 1576 height = RAW_LINES*2; 1577 if (width*height > buf->vb.bsize) 1578 return -EINVAL; 1579 buf->vb.size = buf->vb.bsize; 1580 1581 /* Make sure tvnorm and vbi_end remain consistent 1582 until we're done. */ 1583 1584 norm = btv->tvnorm; 1585 1586 /* In this mode capturing always starts at defrect.top 1587 (default VDELAY), ignoring cropping parameters. */ 1588 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) { 1589 return -EINVAL; 1590 } 1591 1592 c.rect = bttv_tvnorms[norm].cropcap.defrect; 1593 } else { 1594 norm = btv->tvnorm; 1595 c = btv->crop[!!fh->do_crop]; 1596 1597 if (width < c.min_scaled_width || 1598 width > c.max_scaled_width || 1599 height < c.min_scaled_height) 1600 return -EINVAL; 1601 1602 switch (field) { 1603 case V4L2_FIELD_TOP: 1604 case V4L2_FIELD_BOTTOM: 1605 case V4L2_FIELD_ALTERNATE: 1606 /* btv->crop counts frame lines. Max. scale 1607 factor is 16:1 for frames, 8:1 for fields. */ 1608 if (height * 2 > c.max_scaled_height) 1609 return -EINVAL; 1610 break; 1611 1612 default: 1613 if (height > c.max_scaled_height) 1614 return -EINVAL; 1615 break; 1616 } 1617 1618 buf->vb.size = (width * height * fmt->depth) >> 3; 1619 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 1620 return -EINVAL; 1621 } 1622 1623 /* alloc + fill struct bttv_buffer (if changed) */ 1624 if (buf->vb.width != width || buf->vb.height != height || 1625 buf->vb.field != field || 1626 buf->tvnorm != norm || buf->fmt != fmt || 1627 buf->crop.top != c.rect.top || 1628 buf->crop.left != c.rect.left || 1629 buf->crop.width != c.rect.width || 1630 buf->crop.height != c.rect.height) { 1631 buf->vb.width = width; 1632 buf->vb.height = height; 1633 buf->vb.field = field; 1634 buf->tvnorm = norm; 1635 buf->fmt = fmt; 1636 buf->crop = c.rect; 1637 redo_dma_risc = 1; 1638 } 1639 1640 /* alloc risc memory */ 1641 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 1642 redo_dma_risc = 1; 1643 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf))) 1644 goto fail; 1645 } 1646 1647 if (redo_dma_risc) 1648 if (0 != (rc = bttv_buffer_risc(btv,buf))) 1649 goto fail; 1650 1651 buf->vb.state = VIDEOBUF_PREPARED; 1652 return 0; 1653 1654 fail: 1655 bttv_dma_free(q,btv,buf); 1656 return rc; 1657 } 1658 1659 static int 1660 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) 1661 { 1662 struct bttv_fh *fh = q->priv_data; 1663 1664 *size = fh->fmt->depth*fh->width*fh->height >> 3; 1665 if (0 == *count) 1666 *count = gbuffers; 1667 if (*size * *count > gbuffers * gbufsize) 1668 *count = (gbuffers * gbufsize) / *size; 1669 return 0; 1670 } 1671 1672 static int 1673 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 1674 enum v4l2_field field) 1675 { 1676 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1677 struct bttv_fh *fh = q->priv_data; 1678 1679 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt, 1680 fh->width, fh->height, field); 1681 } 1682 1683 static void 1684 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) 1685 { 1686 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1687 struct bttv_fh *fh = q->priv_data; 1688 struct bttv *btv = fh->btv; 1689 1690 buf->vb.state = VIDEOBUF_QUEUED; 1691 list_add_tail(&buf->vb.queue,&btv->capture); 1692 if (!btv->curr.frame_irq) { 1693 btv->loop_irq |= 1; 1694 bttv_set_dma(btv, 0x03); 1695 } 1696 } 1697 1698 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) 1699 { 1700 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1701 struct bttv_fh *fh = q->priv_data; 1702 1703 bttv_dma_free(q,fh->btv,buf); 1704 } 1705 1706 static struct videobuf_queue_ops bttv_video_qops = { 1707 .buf_setup = buffer_setup, 1708 .buf_prepare = buffer_prepare, 1709 .buf_queue = buffer_queue, 1710 .buf_release = buffer_release, 1711 }; 1712 1713 static void radio_enable(struct bttv *btv) 1714 { 1715 /* Switch to the radio tuner */ 1716 if (!btv->has_radio_tuner) { 1717 btv->has_radio_tuner = 1; 1718 bttv_call_all(btv, tuner, s_radio); 1719 btv->audio_input = TVAUDIO_INPUT_RADIO; 1720 audio_input(btv, btv->audio_input); 1721 } 1722 } 1723 1724 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id) 1725 { 1726 struct bttv_fh *fh = priv; 1727 struct bttv *btv = fh->btv; 1728 unsigned int i; 1729 1730 for (i = 0; i < BTTV_TVNORMS; i++) 1731 if (id & bttv_tvnorms[i].v4l2_id) 1732 break; 1733 if (i == BTTV_TVNORMS) 1734 return -EINVAL; 1735 btv->std = id; 1736 set_tvnorm(btv, i); 1737 return 0; 1738 } 1739 1740 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id) 1741 { 1742 struct bttv_fh *fh = priv; 1743 struct bttv *btv = fh->btv; 1744 1745 *id = btv->std; 1746 return 0; 1747 } 1748 1749 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id) 1750 { 1751 struct bttv_fh *fh = f; 1752 struct bttv *btv = fh->btv; 1753 1754 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML) 1755 *id &= V4L2_STD_625_50; 1756 else 1757 *id &= V4L2_STD_525_60; 1758 return 0; 1759 } 1760 1761 static int bttv_enum_input(struct file *file, void *priv, 1762 struct v4l2_input *i) 1763 { 1764 struct bttv_fh *fh = priv; 1765 struct bttv *btv = fh->btv; 1766 1767 if (i->index >= bttv_tvcards[btv->c.type].video_inputs) 1768 return -EINVAL; 1769 1770 i->type = V4L2_INPUT_TYPE_CAMERA; 1771 i->audioset = 0; 1772 1773 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) { 1774 sprintf(i->name, "Television"); 1775 i->type = V4L2_INPUT_TYPE_TUNER; 1776 i->tuner = 0; 1777 } else if (i->index == btv->svhs) { 1778 sprintf(i->name, "S-Video"); 1779 } else { 1780 sprintf(i->name, "Composite%d", i->index); 1781 } 1782 1783 if (i->index == btv->input) { 1784 __u32 dstatus = btread(BT848_DSTATUS); 1785 if (0 == (dstatus & BT848_DSTATUS_PRES)) 1786 i->status |= V4L2_IN_ST_NO_SIGNAL; 1787 if (0 == (dstatus & BT848_DSTATUS_HLOC)) 1788 i->status |= V4L2_IN_ST_NO_H_LOCK; 1789 } 1790 1791 i->std = BTTV_NORMS; 1792 return 0; 1793 } 1794 1795 static int bttv_g_input(struct file *file, void *priv, unsigned int *i) 1796 { 1797 struct bttv_fh *fh = priv; 1798 struct bttv *btv = fh->btv; 1799 1800 *i = btv->input; 1801 1802 return 0; 1803 } 1804 1805 static int bttv_s_input(struct file *file, void *priv, unsigned int i) 1806 { 1807 struct bttv_fh *fh = priv; 1808 struct bttv *btv = fh->btv; 1809 1810 if (i >= bttv_tvcards[btv->c.type].video_inputs) 1811 return -EINVAL; 1812 1813 set_input(btv, i, btv->tvnorm); 1814 return 0; 1815 } 1816 1817 static int bttv_s_tuner(struct file *file, void *priv, 1818 const struct v4l2_tuner *t) 1819 { 1820 struct bttv_fh *fh = priv; 1821 struct bttv *btv = fh->btv; 1822 1823 if (t->index) 1824 return -EINVAL; 1825 1826 bttv_call_all(btv, tuner, s_tuner, t); 1827 1828 if (btv->audio_mode_gpio) { 1829 struct v4l2_tuner copy = *t; 1830 1831 btv->audio_mode_gpio(btv, ©, 1); 1832 } 1833 return 0; 1834 } 1835 1836 static int bttv_g_frequency(struct file *file, void *priv, 1837 struct v4l2_frequency *f) 1838 { 1839 struct bttv_fh *fh = priv; 1840 struct bttv *btv = fh->btv; 1841 1842 if (f->tuner) 1843 return -EINVAL; 1844 1845 if (f->type == V4L2_TUNER_RADIO) 1846 radio_enable(btv); 1847 f->frequency = f->type == V4L2_TUNER_RADIO ? 1848 btv->radio_freq : btv->tv_freq; 1849 1850 return 0; 1851 } 1852 1853 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f) 1854 { 1855 struct v4l2_frequency new_freq = *f; 1856 1857 bttv_call_all(btv, tuner, s_frequency, f); 1858 /* s_frequency may clamp the frequency, so get the actual 1859 frequency before assigning radio/tv_freq. */ 1860 bttv_call_all(btv, tuner, g_frequency, &new_freq); 1861 if (new_freq.type == V4L2_TUNER_RADIO) { 1862 radio_enable(btv); 1863 btv->radio_freq = new_freq.frequency; 1864 if (btv->has_tea575x) { 1865 btv->tea.freq = btv->radio_freq; 1866 snd_tea575x_set_freq(&btv->tea); 1867 } 1868 } else { 1869 btv->tv_freq = new_freq.frequency; 1870 } 1871 } 1872 1873 static int bttv_s_frequency(struct file *file, void *priv, 1874 const struct v4l2_frequency *f) 1875 { 1876 struct bttv_fh *fh = priv; 1877 struct bttv *btv = fh->btv; 1878 1879 if (f->tuner) 1880 return -EINVAL; 1881 1882 bttv_set_frequency(btv, f); 1883 return 0; 1884 } 1885 1886 static int bttv_log_status(struct file *file, void *f) 1887 { 1888 struct video_device *vdev = video_devdata(file); 1889 struct bttv_fh *fh = f; 1890 struct bttv *btv = fh->btv; 1891 1892 v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name); 1893 bttv_call_all(btv, core, log_status); 1894 return 0; 1895 } 1896 1897 #ifdef CONFIG_VIDEO_ADV_DEBUG 1898 static int bttv_g_register(struct file *file, void *f, 1899 struct v4l2_dbg_register *reg) 1900 { 1901 struct bttv_fh *fh = f; 1902 struct bttv *btv = fh->btv; 1903 1904 /* bt848 has a 12-bit register space */ 1905 reg->reg &= 0xfff; 1906 reg->val = btread(reg->reg); 1907 reg->size = 1; 1908 1909 return 0; 1910 } 1911 1912 static int bttv_s_register(struct file *file, void *f, 1913 const struct v4l2_dbg_register *reg) 1914 { 1915 struct bttv_fh *fh = f; 1916 struct bttv *btv = fh->btv; 1917 1918 /* bt848 has a 12-bit register space */ 1919 btwrite(reg->val, reg->reg & 0xfff); 1920 1921 return 0; 1922 } 1923 #endif 1924 1925 /* Given cropping boundaries b and the scaled width and height of a 1926 single field or frame, which must not exceed hardware limits, this 1927 function adjusts the cropping parameters c. */ 1928 static void 1929 bttv_crop_adjust (struct bttv_crop * c, 1930 const struct v4l2_rect * b, 1931 __s32 width, 1932 __s32 height, 1933 enum v4l2_field field) 1934 { 1935 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field); 1936 __s32 max_left; 1937 __s32 max_top; 1938 1939 if (width < c->min_scaled_width) { 1940 /* Max. hor. scale factor 16:1. */ 1941 c->rect.width = width * 16; 1942 } else if (width > c->max_scaled_width) { 1943 /* Min. hor. scale factor 1:1. */ 1944 c->rect.width = width; 1945 1946 max_left = b->left + b->width - width; 1947 max_left = min(max_left, (__s32) MAX_HDELAY); 1948 if (c->rect.left > max_left) 1949 c->rect.left = max_left; 1950 } 1951 1952 if (height < c->min_scaled_height) { 1953 /* Max. vert. scale factor 16:1, single fields 8:1. */ 1954 c->rect.height = height * 16; 1955 } else if (frame_height > c->max_scaled_height) { 1956 /* Min. vert. scale factor 1:1. 1957 Top and height count field lines times two. */ 1958 c->rect.height = (frame_height + 1) & ~1; 1959 1960 max_top = b->top + b->height - c->rect.height; 1961 if (c->rect.top > max_top) 1962 c->rect.top = max_top; 1963 } 1964 1965 bttv_crop_calc_limits(c); 1966 } 1967 1968 /* Returns an error if scaling to a frame or single field with the given 1969 width and height is not possible with the current cropping parameters 1970 and width aligned according to width_mask. If adjust_size is TRUE the 1971 function may adjust the width and/or height instead, rounding width 1972 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may 1973 also adjust the current cropping parameters to get closer to the 1974 desired image size. */ 1975 static int 1976 limit_scaled_size_lock (struct bttv_fh * fh, 1977 __s32 * width, 1978 __s32 * height, 1979 enum v4l2_field field, 1980 unsigned int width_mask, 1981 unsigned int width_bias, 1982 int adjust_size, 1983 int adjust_crop) 1984 { 1985 struct bttv *btv = fh->btv; 1986 const struct v4l2_rect *b; 1987 struct bttv_crop *c; 1988 __s32 min_width; 1989 __s32 min_height; 1990 __s32 max_width; 1991 __s32 max_height; 1992 int rc; 1993 1994 BUG_ON((int) width_mask >= 0 || 1995 width_bias >= (unsigned int) -width_mask); 1996 1997 /* Make sure tvnorm, vbi_end and the current cropping parameters 1998 remain consistent until we're done. */ 1999 2000 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2001 2002 /* Do crop - use current, don't - use default parameters. */ 2003 c = &btv->crop[!!fh->do_crop]; 2004 2005 if (fh->do_crop 2006 && adjust_size 2007 && adjust_crop 2008 && !locked_btres(btv, VIDEO_RESOURCES)) { 2009 min_width = 48; 2010 min_height = 32; 2011 2012 /* We cannot scale up. When the scaled image is larger 2013 than crop.rect we adjust the crop.rect as required 2014 by the V4L2 spec, hence cropcap.bounds are our limit. */ 2015 max_width = min_t(unsigned int, b->width, MAX_HACTIVE); 2016 max_height = b->height; 2017 2018 /* We cannot capture the same line as video and VBI data. 2019 Note btv->vbi_end is really a minimum, see 2020 bttv_vbi_try_fmt(). */ 2021 if (btv->vbi_end > b->top) { 2022 max_height -= btv->vbi_end - b->top; 2023 rc = -EBUSY; 2024 if (min_height > max_height) 2025 goto fail; 2026 } 2027 } else { 2028 rc = -EBUSY; 2029 if (btv->vbi_end > c->rect.top) 2030 goto fail; 2031 2032 min_width = c->min_scaled_width; 2033 min_height = c->min_scaled_height; 2034 max_width = c->max_scaled_width; 2035 max_height = c->max_scaled_height; 2036 2037 adjust_crop = 0; 2038 } 2039 2040 min_width = (min_width - width_mask - 1) & width_mask; 2041 max_width = max_width & width_mask; 2042 2043 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */ 2044 min_height = min_height; 2045 /* Min. scale factor is 1:1. */ 2046 max_height >>= !V4L2_FIELD_HAS_BOTH(field); 2047 2048 if (adjust_size) { 2049 *width = clamp(*width, min_width, max_width); 2050 *height = clamp(*height, min_height, max_height); 2051 2052 /* Round after clamping to avoid overflow. */ 2053 *width = (*width + width_bias) & width_mask; 2054 2055 if (adjust_crop) { 2056 bttv_crop_adjust(c, b, *width, *height, field); 2057 2058 if (btv->vbi_end > c->rect.top) { 2059 /* Move the crop window out of the way. */ 2060 c->rect.top = btv->vbi_end; 2061 } 2062 } 2063 } else { 2064 rc = -EINVAL; 2065 if (*width < min_width || 2066 *height < min_height || 2067 *width > max_width || 2068 *height > max_height || 2069 0 != (*width & ~width_mask)) 2070 goto fail; 2071 } 2072 2073 rc = 0; /* success */ 2074 2075 fail: 2076 2077 return rc; 2078 } 2079 2080 /* Returns an error if the given overlay window dimensions are not 2081 possible with the current cropping parameters. If adjust_size is 2082 TRUE the function may adjust the window width and/or height 2083 instead, however it always rounds the horizontal position and 2084 width as btcx_align() does. If adjust_crop is TRUE the function 2085 may also adjust the current cropping parameters to get closer 2086 to the desired window size. */ 2087 static int 2088 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win, 2089 int adjust_size, int adjust_crop) 2090 { 2091 enum v4l2_field field; 2092 unsigned int width_mask; 2093 int rc; 2094 2095 if (win->w.width < 48) 2096 win->w.width = 48; 2097 if (win->w.height < 32) 2098 win->w.height = 32; 2099 if (win->clipcount > 2048) 2100 win->clipcount = 2048; 2101 2102 win->chromakey = 0; 2103 win->global_alpha = 0; 2104 field = win->field; 2105 2106 switch (field) { 2107 case V4L2_FIELD_TOP: 2108 case V4L2_FIELD_BOTTOM: 2109 case V4L2_FIELD_INTERLACED: 2110 break; 2111 default: 2112 field = V4L2_FIELD_ANY; 2113 break; 2114 } 2115 if (V4L2_FIELD_ANY == field) { 2116 __s32 height2; 2117 2118 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1; 2119 field = (win->w.height > height2) 2120 ? V4L2_FIELD_INTERLACED 2121 : V4L2_FIELD_TOP; 2122 } 2123 win->field = field; 2124 2125 if (NULL == fh->ovfmt) 2126 return -EINVAL; 2127 /* 4-byte alignment. */ 2128 width_mask = ~0; 2129 switch (fh->ovfmt->depth) { 2130 case 8: 2131 case 24: 2132 width_mask = ~3; 2133 break; 2134 case 16: 2135 width_mask = ~1; 2136 break; 2137 case 32: 2138 break; 2139 default: 2140 BUG(); 2141 } 2142 2143 win->w.width -= win->w.left & ~width_mask; 2144 win->w.left = (win->w.left - width_mask - 1) & width_mask; 2145 2146 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height, 2147 field, width_mask, 2148 /* width_bias: round down */ 0, 2149 adjust_size, adjust_crop); 2150 if (0 != rc) 2151 return rc; 2152 return 0; 2153 } 2154 2155 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv, 2156 struct v4l2_window *win, int fixup) 2157 { 2158 struct v4l2_clip *clips = NULL; 2159 int n,size,retval = 0; 2160 2161 if (NULL == fh->ovfmt) 2162 return -EINVAL; 2163 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED)) 2164 return -EINVAL; 2165 retval = verify_window_lock(fh, win, 2166 /* adjust_size */ fixup, 2167 /* adjust_crop */ fixup); 2168 if (0 != retval) 2169 return retval; 2170 2171 /* copy clips -- luckily v4l1 + v4l2 are binary 2172 compatible here ...*/ 2173 n = win->clipcount; 2174 size = sizeof(*clips)*(n+4); 2175 clips = kmalloc(size,GFP_KERNEL); 2176 if (NULL == clips) 2177 return -ENOMEM; 2178 if (n > 0) { 2179 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) { 2180 kfree(clips); 2181 return -EFAULT; 2182 } 2183 } 2184 2185 /* clip against screen */ 2186 if (NULL != btv->fbuf.base) 2187 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height, 2188 &win->w, clips, n); 2189 btcx_sort_clips(clips,n); 2190 2191 /* 4-byte alignments */ 2192 switch (fh->ovfmt->depth) { 2193 case 8: 2194 case 24: 2195 btcx_align(&win->w, clips, n, 3); 2196 break; 2197 case 16: 2198 btcx_align(&win->w, clips, n, 1); 2199 break; 2200 case 32: 2201 /* no alignment fixups needed */ 2202 break; 2203 default: 2204 BUG(); 2205 } 2206 2207 kfree(fh->ov.clips); 2208 fh->ov.clips = clips; 2209 fh->ov.nclips = n; 2210 2211 fh->ov.w = win->w; 2212 fh->ov.field = win->field; 2213 fh->ov.setup_ok = 1; 2214 2215 btv->init.ov.w.width = win->w.width; 2216 btv->init.ov.w.height = win->w.height; 2217 btv->init.ov.field = win->field; 2218 2219 /* update overlay if needed */ 2220 retval = 0; 2221 if (check_btres(fh, RESOURCE_OVERLAY)) { 2222 struct bttv_buffer *new; 2223 2224 new = videobuf_sg_alloc(sizeof(*new)); 2225 new->crop = btv->crop[!!fh->do_crop].rect; 2226 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2227 retval = bttv_switch_overlay(btv,fh,new); 2228 } 2229 return retval; 2230 } 2231 2232 /* ----------------------------------------------------------------------- */ 2233 2234 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh) 2235 { 2236 struct videobuf_queue* q = NULL; 2237 2238 switch (fh->type) { 2239 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2240 q = &fh->cap; 2241 break; 2242 case V4L2_BUF_TYPE_VBI_CAPTURE: 2243 q = &fh->vbi; 2244 break; 2245 default: 2246 BUG(); 2247 } 2248 return q; 2249 } 2250 2251 static int bttv_resource(struct bttv_fh *fh) 2252 { 2253 int res = 0; 2254 2255 switch (fh->type) { 2256 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2257 res = RESOURCE_VIDEO_STREAM; 2258 break; 2259 case V4L2_BUF_TYPE_VBI_CAPTURE: 2260 res = RESOURCE_VBI; 2261 break; 2262 default: 2263 BUG(); 2264 } 2265 return res; 2266 } 2267 2268 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type) 2269 { 2270 struct videobuf_queue *q = bttv_queue(fh); 2271 int res = bttv_resource(fh); 2272 2273 if (check_btres(fh,res)) 2274 return -EBUSY; 2275 if (videobuf_queue_is_busy(q)) 2276 return -EBUSY; 2277 fh->type = type; 2278 return 0; 2279 } 2280 2281 static void 2282 pix_format_set_size (struct v4l2_pix_format * f, 2283 const struct bttv_format * fmt, 2284 unsigned int width, 2285 unsigned int height) 2286 { 2287 f->width = width; 2288 f->height = height; 2289 2290 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2291 f->bytesperline = width; /* Y plane */ 2292 f->sizeimage = (width * height * fmt->depth) >> 3; 2293 } else { 2294 f->bytesperline = (width * fmt->depth) >> 3; 2295 f->sizeimage = height * f->bytesperline; 2296 } 2297 } 2298 2299 static int bttv_g_fmt_vid_cap(struct file *file, void *priv, 2300 struct v4l2_format *f) 2301 { 2302 struct bttv_fh *fh = priv; 2303 2304 pix_format_set_size(&f->fmt.pix, fh->fmt, 2305 fh->width, fh->height); 2306 f->fmt.pix.field = fh->cap.field; 2307 f->fmt.pix.pixelformat = fh->fmt->fourcc; 2308 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2309 2310 return 0; 2311 } 2312 2313 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv, 2314 struct v4l2_format *f) 2315 { 2316 struct bttv_fh *fh = priv; 2317 2318 f->fmt.win.w = fh->ov.w; 2319 f->fmt.win.field = fh->ov.field; 2320 2321 return 0; 2322 } 2323 2324 static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt, 2325 unsigned int *width_mask, 2326 unsigned int *width_bias) 2327 { 2328 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2329 *width_mask = ~15; /* width must be a multiple of 16 pixels */ 2330 *width_bias = 8; /* nearest */ 2331 } else { 2332 *width_mask = ~3; /* width must be a multiple of 4 pixels */ 2333 *width_bias = 2; /* nearest */ 2334 } 2335 } 2336 2337 static int bttv_try_fmt_vid_cap(struct file *file, void *priv, 2338 struct v4l2_format *f) 2339 { 2340 const struct bttv_format *fmt; 2341 struct bttv_fh *fh = priv; 2342 struct bttv *btv = fh->btv; 2343 enum v4l2_field field; 2344 __s32 width, height; 2345 __s32 height2; 2346 unsigned int width_mask, width_bias; 2347 int rc; 2348 2349 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2350 if (NULL == fmt) 2351 return -EINVAL; 2352 2353 field = f->fmt.pix.field; 2354 2355 switch (field) { 2356 case V4L2_FIELD_TOP: 2357 case V4L2_FIELD_BOTTOM: 2358 case V4L2_FIELD_ALTERNATE: 2359 case V4L2_FIELD_INTERLACED: 2360 break; 2361 case V4L2_FIELD_SEQ_BT: 2362 case V4L2_FIELD_SEQ_TB: 2363 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) { 2364 field = V4L2_FIELD_SEQ_TB; 2365 break; 2366 } 2367 /* fall through */ 2368 default: /* FIELD_ANY case */ 2369 height2 = btv->crop[!!fh->do_crop].rect.height >> 1; 2370 field = (f->fmt.pix.height > height2) 2371 ? V4L2_FIELD_INTERLACED 2372 : V4L2_FIELD_BOTTOM; 2373 break; 2374 } 2375 2376 width = f->fmt.pix.width; 2377 height = f->fmt.pix.height; 2378 2379 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2380 rc = limit_scaled_size_lock(fh, &width, &height, field, 2381 width_mask, width_bias, 2382 /* adjust_size */ 1, 2383 /* adjust_crop */ 0); 2384 if (0 != rc) 2385 return rc; 2386 2387 /* update data for the application */ 2388 f->fmt.pix.field = field; 2389 pix_format_set_size(&f->fmt.pix, fmt, width, height); 2390 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2391 2392 return 0; 2393 } 2394 2395 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, 2396 struct v4l2_format *f) 2397 { 2398 struct bttv_fh *fh = priv; 2399 2400 verify_window_lock(fh, &f->fmt.win, 2401 /* adjust_size */ 1, 2402 /* adjust_crop */ 0); 2403 return 0; 2404 } 2405 2406 static int bttv_s_fmt_vid_cap(struct file *file, void *priv, 2407 struct v4l2_format *f) 2408 { 2409 int retval; 2410 const struct bttv_format *fmt; 2411 struct bttv_fh *fh = priv; 2412 struct bttv *btv = fh->btv; 2413 __s32 width, height; 2414 unsigned int width_mask, width_bias; 2415 enum v4l2_field field; 2416 2417 retval = bttv_switch_type(fh, f->type); 2418 if (0 != retval) 2419 return retval; 2420 2421 retval = bttv_try_fmt_vid_cap(file, priv, f); 2422 if (0 != retval) 2423 return retval; 2424 2425 width = f->fmt.pix.width; 2426 height = f->fmt.pix.height; 2427 field = f->fmt.pix.field; 2428 2429 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2430 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2431 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field, 2432 width_mask, width_bias, 2433 /* adjust_size */ 1, 2434 /* adjust_crop */ 1); 2435 if (0 != retval) 2436 return retval; 2437 2438 f->fmt.pix.field = field; 2439 2440 /* update our state informations */ 2441 fh->fmt = fmt; 2442 fh->cap.field = f->fmt.pix.field; 2443 fh->cap.last = V4L2_FIELD_NONE; 2444 fh->width = f->fmt.pix.width; 2445 fh->height = f->fmt.pix.height; 2446 btv->init.fmt = fmt; 2447 btv->init.width = f->fmt.pix.width; 2448 btv->init.height = f->fmt.pix.height; 2449 2450 return 0; 2451 } 2452 2453 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv, 2454 struct v4l2_format *f) 2455 { 2456 struct bttv_fh *fh = priv; 2457 struct bttv *btv = fh->btv; 2458 2459 if (no_overlay > 0) { 2460 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2461 return -EINVAL; 2462 } 2463 2464 return setup_window_lock(fh, btv, &f->fmt.win, 1); 2465 } 2466 2467 static int bttv_querycap(struct file *file, void *priv, 2468 struct v4l2_capability *cap) 2469 { 2470 struct video_device *vdev = video_devdata(file); 2471 struct bttv_fh *fh = priv; 2472 struct bttv *btv = fh->btv; 2473 2474 if (0 == v4l2) 2475 return -EINVAL; 2476 2477 strlcpy(cap->driver, "bttv", sizeof(cap->driver)); 2478 strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card)); 2479 snprintf(cap->bus_info, sizeof(cap->bus_info), 2480 "PCI:%s", pci_name(btv->c.pci)); 2481 cap->capabilities = 2482 V4L2_CAP_VIDEO_CAPTURE | 2483 V4L2_CAP_READWRITE | 2484 V4L2_CAP_STREAMING | 2485 V4L2_CAP_DEVICE_CAPS; 2486 if (no_overlay <= 0) 2487 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY; 2488 if (video_is_registered(&btv->vbi_dev)) 2489 cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 2490 if (video_is_registered(&btv->radio_dev)) 2491 cap->capabilities |= V4L2_CAP_RADIO; 2492 2493 /* 2494 * No need to lock here: those vars are initialized during board 2495 * probe and remains untouched during the rest of the driver lifecycle 2496 */ 2497 if (btv->has_saa6588) 2498 cap->capabilities |= V4L2_CAP_RDS_CAPTURE; 2499 if (btv->tuner_type != TUNER_ABSENT) 2500 cap->capabilities |= V4L2_CAP_TUNER; 2501 if (vdev->vfl_type == VFL_TYPE_GRABBER) 2502 cap->device_caps = cap->capabilities & 2503 (V4L2_CAP_VIDEO_CAPTURE | 2504 V4L2_CAP_READWRITE | 2505 V4L2_CAP_STREAMING | 2506 V4L2_CAP_VIDEO_OVERLAY | 2507 V4L2_CAP_TUNER); 2508 else if (vdev->vfl_type == VFL_TYPE_VBI) 2509 cap->device_caps = cap->capabilities & 2510 (V4L2_CAP_VBI_CAPTURE | 2511 V4L2_CAP_READWRITE | 2512 V4L2_CAP_STREAMING | 2513 V4L2_CAP_TUNER); 2514 else { 2515 cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER; 2516 if (btv->has_saa6588) 2517 cap->device_caps |= V4L2_CAP_READWRITE | 2518 V4L2_CAP_RDS_CAPTURE; 2519 if (btv->has_tea575x) 2520 cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK; 2521 } 2522 return 0; 2523 } 2524 2525 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f) 2526 { 2527 int index = -1, i; 2528 2529 for (i = 0; i < FORMATS; i++) { 2530 if (formats[i].fourcc != -1) 2531 index++; 2532 if ((unsigned int)index == f->index) 2533 break; 2534 } 2535 if (FORMATS == i) 2536 return -EINVAL; 2537 2538 f->pixelformat = formats[i].fourcc; 2539 strlcpy(f->description, formats[i].name, sizeof(f->description)); 2540 2541 return i; 2542 } 2543 2544 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv, 2545 struct v4l2_fmtdesc *f) 2546 { 2547 int rc = bttv_enum_fmt_cap_ovr(f); 2548 2549 if (rc < 0) 2550 return rc; 2551 2552 return 0; 2553 } 2554 2555 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv, 2556 struct v4l2_fmtdesc *f) 2557 { 2558 int rc; 2559 2560 if (no_overlay > 0) { 2561 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2562 return -EINVAL; 2563 } 2564 2565 rc = bttv_enum_fmt_cap_ovr(f); 2566 2567 if (rc < 0) 2568 return rc; 2569 2570 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED)) 2571 return -EINVAL; 2572 2573 return 0; 2574 } 2575 2576 static int bttv_g_fbuf(struct file *file, void *f, 2577 struct v4l2_framebuffer *fb) 2578 { 2579 struct bttv_fh *fh = f; 2580 struct bttv *btv = fh->btv; 2581 2582 *fb = btv->fbuf; 2583 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; 2584 fb->flags = V4L2_FBUF_FLAG_PRIMARY; 2585 if (fh->ovfmt) 2586 fb->fmt.pixelformat = fh->ovfmt->fourcc; 2587 return 0; 2588 } 2589 2590 static int bttv_overlay(struct file *file, void *f, unsigned int on) 2591 { 2592 struct bttv_fh *fh = f; 2593 struct bttv *btv = fh->btv; 2594 struct bttv_buffer *new; 2595 int retval = 0; 2596 2597 if (on) { 2598 /* verify args */ 2599 if (unlikely(!btv->fbuf.base)) { 2600 return -EINVAL; 2601 } 2602 if (unlikely(!fh->ov.setup_ok)) { 2603 dprintk("%d: overlay: !setup_ok\n", btv->c.nr); 2604 retval = -EINVAL; 2605 } 2606 if (retval) 2607 return retval; 2608 } 2609 2610 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY)) 2611 return -EBUSY; 2612 2613 if (on) { 2614 fh->ov.tvnorm = btv->tvnorm; 2615 new = videobuf_sg_alloc(sizeof(*new)); 2616 new->crop = btv->crop[!!fh->do_crop].rect; 2617 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2618 } else { 2619 new = NULL; 2620 } 2621 2622 /* switch over */ 2623 retval = bttv_switch_overlay(btv, fh, new); 2624 return retval; 2625 } 2626 2627 static int bttv_s_fbuf(struct file *file, void *f, 2628 const struct v4l2_framebuffer *fb) 2629 { 2630 struct bttv_fh *fh = f; 2631 struct bttv *btv = fh->btv; 2632 const struct bttv_format *fmt; 2633 int retval; 2634 2635 if (!capable(CAP_SYS_ADMIN) && 2636 !capable(CAP_SYS_RAWIO)) 2637 return -EPERM; 2638 2639 /* check args */ 2640 fmt = format_by_fourcc(fb->fmt.pixelformat); 2641 if (NULL == fmt) 2642 return -EINVAL; 2643 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED)) 2644 return -EINVAL; 2645 2646 retval = -EINVAL; 2647 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2648 __s32 width = fb->fmt.width; 2649 __s32 height = fb->fmt.height; 2650 2651 retval = limit_scaled_size_lock(fh, &width, &height, 2652 V4L2_FIELD_INTERLACED, 2653 /* width_mask */ ~3, 2654 /* width_bias */ 2, 2655 /* adjust_size */ 0, 2656 /* adjust_crop */ 0); 2657 if (0 != retval) 2658 return retval; 2659 } 2660 2661 /* ok, accept it */ 2662 btv->fbuf.base = fb->base; 2663 btv->fbuf.fmt.width = fb->fmt.width; 2664 btv->fbuf.fmt.height = fb->fmt.height; 2665 if (0 != fb->fmt.bytesperline) 2666 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline; 2667 else 2668 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8; 2669 2670 retval = 0; 2671 fh->ovfmt = fmt; 2672 btv->init.ovfmt = fmt; 2673 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2674 fh->ov.w.left = 0; 2675 fh->ov.w.top = 0; 2676 fh->ov.w.width = fb->fmt.width; 2677 fh->ov.w.height = fb->fmt.height; 2678 btv->init.ov.w.width = fb->fmt.width; 2679 btv->init.ov.w.height = fb->fmt.height; 2680 2681 kfree(fh->ov.clips); 2682 fh->ov.clips = NULL; 2683 fh->ov.nclips = 0; 2684 2685 if (check_btres(fh, RESOURCE_OVERLAY)) { 2686 struct bttv_buffer *new; 2687 2688 new = videobuf_sg_alloc(sizeof(*new)); 2689 new->crop = btv->crop[!!fh->do_crop].rect; 2690 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2691 retval = bttv_switch_overlay(btv, fh, new); 2692 } 2693 } 2694 return retval; 2695 } 2696 2697 static int bttv_reqbufs(struct file *file, void *priv, 2698 struct v4l2_requestbuffers *p) 2699 { 2700 struct bttv_fh *fh = priv; 2701 return videobuf_reqbufs(bttv_queue(fh), p); 2702 } 2703 2704 static int bttv_querybuf(struct file *file, void *priv, 2705 struct v4l2_buffer *b) 2706 { 2707 struct bttv_fh *fh = priv; 2708 return videobuf_querybuf(bttv_queue(fh), b); 2709 } 2710 2711 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2712 { 2713 struct bttv_fh *fh = priv; 2714 struct bttv *btv = fh->btv; 2715 int res = bttv_resource(fh); 2716 2717 if (!check_alloc_btres_lock(btv, fh, res)) 2718 return -EBUSY; 2719 2720 return videobuf_qbuf(bttv_queue(fh), b); 2721 } 2722 2723 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2724 { 2725 struct bttv_fh *fh = priv; 2726 return videobuf_dqbuf(bttv_queue(fh), b, 2727 file->f_flags & O_NONBLOCK); 2728 } 2729 2730 static int bttv_streamon(struct file *file, void *priv, 2731 enum v4l2_buf_type type) 2732 { 2733 struct bttv_fh *fh = priv; 2734 struct bttv *btv = fh->btv; 2735 int res = bttv_resource(fh); 2736 2737 if (!check_alloc_btres_lock(btv, fh, res)) 2738 return -EBUSY; 2739 return videobuf_streamon(bttv_queue(fh)); 2740 } 2741 2742 2743 static int bttv_streamoff(struct file *file, void *priv, 2744 enum v4l2_buf_type type) 2745 { 2746 struct bttv_fh *fh = priv; 2747 struct bttv *btv = fh->btv; 2748 int retval; 2749 int res = bttv_resource(fh); 2750 2751 2752 retval = videobuf_streamoff(bttv_queue(fh)); 2753 if (retval < 0) 2754 return retval; 2755 free_btres_lock(btv, fh, res); 2756 return 0; 2757 } 2758 2759 static int bttv_g_parm(struct file *file, void *f, 2760 struct v4l2_streamparm *parm) 2761 { 2762 struct bttv_fh *fh = f; 2763 struct bttv *btv = fh->btv; 2764 2765 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2766 return -EINVAL; 2767 parm->parm.capture.readbuffers = gbuffers; 2768 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id, 2769 &parm->parm.capture.timeperframe); 2770 2771 return 0; 2772 } 2773 2774 static int bttv_g_tuner(struct file *file, void *priv, 2775 struct v4l2_tuner *t) 2776 { 2777 struct bttv_fh *fh = priv; 2778 struct bttv *btv = fh->btv; 2779 2780 if (0 != t->index) 2781 return -EINVAL; 2782 2783 t->rxsubchans = V4L2_TUNER_SUB_MONO; 2784 t->capability = V4L2_TUNER_CAP_NORM; 2785 bttv_call_all(btv, tuner, g_tuner, t); 2786 strcpy(t->name, "Television"); 2787 t->type = V4L2_TUNER_ANALOG_TV; 2788 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) 2789 t->signal = 0xffff; 2790 2791 if (btv->audio_mode_gpio) 2792 btv->audio_mode_gpio(btv, t, 0); 2793 2794 return 0; 2795 } 2796 2797 static int bttv_cropcap(struct file *file, void *priv, 2798 struct v4l2_cropcap *cap) 2799 { 2800 struct bttv_fh *fh = priv; 2801 struct bttv *btv = fh->btv; 2802 2803 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2804 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2805 return -EINVAL; 2806 2807 /* defrect and bounds are set via g_selection */ 2808 cap->pixelaspect = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect; 2809 2810 return 0; 2811 } 2812 2813 static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel) 2814 { 2815 struct bttv_fh *fh = f; 2816 struct bttv *btv = fh->btv; 2817 2818 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2819 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2820 return -EINVAL; 2821 2822 switch (sel->target) { 2823 case V4L2_SEL_TGT_CROP: 2824 /* 2825 * No fh->do_crop = 1; because btv->crop[1] may be 2826 * inconsistent with fh->width or fh->height and apps 2827 * do not expect a change here. 2828 */ 2829 sel->r = btv->crop[!!fh->do_crop].rect; 2830 break; 2831 case V4L2_SEL_TGT_CROP_DEFAULT: 2832 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect; 2833 break; 2834 case V4L2_SEL_TGT_CROP_BOUNDS: 2835 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2836 break; 2837 default: 2838 return -EINVAL; 2839 } 2840 2841 return 0; 2842 } 2843 2844 static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel) 2845 { 2846 struct bttv_fh *fh = f; 2847 struct bttv *btv = fh->btv; 2848 const struct v4l2_rect *b; 2849 int retval; 2850 struct bttv_crop c; 2851 __s32 b_left; 2852 __s32 b_top; 2853 __s32 b_right; 2854 __s32 b_bottom; 2855 2856 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2857 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2858 return -EINVAL; 2859 2860 if (sel->target != V4L2_SEL_TGT_CROP) 2861 return -EINVAL; 2862 2863 /* Make sure tvnorm, vbi_end and the current cropping 2864 parameters remain consistent until we're done. Note 2865 read() may change vbi_end in check_alloc_btres_lock(). */ 2866 retval = -EBUSY; 2867 2868 if (locked_btres(fh->btv, VIDEO_RESOURCES)) { 2869 return retval; 2870 } 2871 2872 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2873 2874 b_left = b->left; 2875 b_right = b_left + b->width; 2876 b_bottom = b->top + b->height; 2877 2878 b_top = max(b->top, btv->vbi_end); 2879 if (b_top + 32 >= b_bottom) { 2880 return retval; 2881 } 2882 2883 /* Min. scaled size 48 x 32. */ 2884 c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48); 2885 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY); 2886 2887 c.rect.width = clamp_t(s32, sel->r.width, 2888 48, b_right - c.rect.left); 2889 2890 c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32); 2891 /* Top and height must be a multiple of two. */ 2892 c.rect.top = (c.rect.top + 1) & ~1; 2893 2894 c.rect.height = clamp_t(s32, sel->r.height, 2895 32, b_bottom - c.rect.top); 2896 c.rect.height = (c.rect.height + 1) & ~1; 2897 2898 bttv_crop_calc_limits(&c); 2899 2900 sel->r = c.rect; 2901 2902 btv->crop[1] = c; 2903 2904 fh->do_crop = 1; 2905 2906 if (fh->width < c.min_scaled_width) { 2907 fh->width = c.min_scaled_width; 2908 btv->init.width = c.min_scaled_width; 2909 } else if (fh->width > c.max_scaled_width) { 2910 fh->width = c.max_scaled_width; 2911 btv->init.width = c.max_scaled_width; 2912 } 2913 2914 if (fh->height < c.min_scaled_height) { 2915 fh->height = c.min_scaled_height; 2916 btv->init.height = c.min_scaled_height; 2917 } else if (fh->height > c.max_scaled_height) { 2918 fh->height = c.max_scaled_height; 2919 btv->init.height = c.max_scaled_height; 2920 } 2921 2922 return 0; 2923 } 2924 2925 static ssize_t bttv_read(struct file *file, char __user *data, 2926 size_t count, loff_t *ppos) 2927 { 2928 struct bttv_fh *fh = file->private_data; 2929 int retval = 0; 2930 2931 if (fh->btv->errors) 2932 bttv_reinit_bt848(fh->btv); 2933 dprintk("%d: read count=%d type=%s\n", 2934 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]); 2935 2936 switch (fh->type) { 2937 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2938 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) { 2939 /* VIDEO_READ in use by another fh, 2940 or VIDEO_STREAM by any fh. */ 2941 return -EBUSY; 2942 } 2943 retval = videobuf_read_one(&fh->cap, data, count, ppos, 2944 file->f_flags & O_NONBLOCK); 2945 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ); 2946 break; 2947 case V4L2_BUF_TYPE_VBI_CAPTURE: 2948 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2949 return -EBUSY; 2950 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1, 2951 file->f_flags & O_NONBLOCK); 2952 break; 2953 default: 2954 BUG(); 2955 } 2956 return retval; 2957 } 2958 2959 static unsigned int bttv_poll(struct file *file, poll_table *wait) 2960 { 2961 struct bttv_fh *fh = file->private_data; 2962 struct bttv_buffer *buf; 2963 enum v4l2_field field; 2964 unsigned int rc = 0; 2965 unsigned long req_events = poll_requested_events(wait); 2966 2967 if (v4l2_event_pending(&fh->fh)) 2968 rc = POLLPRI; 2969 else if (req_events & POLLPRI) 2970 poll_wait(file, &fh->fh.wait, wait); 2971 2972 if (!(req_events & (POLLIN | POLLRDNORM))) 2973 return rc; 2974 2975 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 2976 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2977 return rc | POLLERR; 2978 return rc | videobuf_poll_stream(file, &fh->vbi, wait); 2979 } 2980 2981 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) { 2982 /* streaming capture */ 2983 if (list_empty(&fh->cap.stream)) 2984 return rc | POLLERR; 2985 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); 2986 } else { 2987 /* read() capture */ 2988 if (NULL == fh->cap.read_buf) { 2989 /* need to capture a new frame */ 2990 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) 2991 return rc | POLLERR; 2992 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize); 2993 if (NULL == fh->cap.read_buf) 2994 return rc | POLLERR; 2995 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR; 2996 field = videobuf_next_field(&fh->cap); 2997 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) { 2998 kfree (fh->cap.read_buf); 2999 fh->cap.read_buf = NULL; 3000 return rc | POLLERR; 3001 } 3002 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf); 3003 fh->cap.read_off = 0; 3004 } 3005 buf = (struct bttv_buffer*)fh->cap.read_buf; 3006 } 3007 3008 poll_wait(file, &buf->vb.done, wait); 3009 if (buf->vb.state == VIDEOBUF_DONE || 3010 buf->vb.state == VIDEOBUF_ERROR) 3011 rc = rc | POLLIN|POLLRDNORM; 3012 return rc; 3013 } 3014 3015 static int bttv_open(struct file *file) 3016 { 3017 struct video_device *vdev = video_devdata(file); 3018 struct bttv *btv = video_drvdata(file); 3019 struct bttv_fh *fh; 3020 enum v4l2_buf_type type = 0; 3021 3022 dprintk("open dev=%s\n", video_device_node_name(vdev)); 3023 3024 if (vdev->vfl_type == VFL_TYPE_GRABBER) { 3025 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 3026 } else if (vdev->vfl_type == VFL_TYPE_VBI) { 3027 type = V4L2_BUF_TYPE_VBI_CAPTURE; 3028 } else { 3029 WARN_ON(1); 3030 return -ENODEV; 3031 } 3032 3033 dprintk("%d: open called (type=%s)\n", 3034 btv->c.nr, v4l2_type_names[type]); 3035 3036 /* allocate per filehandle data */ 3037 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 3038 if (unlikely(!fh)) 3039 return -ENOMEM; 3040 btv->users++; 3041 file->private_data = fh; 3042 3043 *fh = btv->init; 3044 v4l2_fh_init(&fh->fh, vdev); 3045 3046 fh->type = type; 3047 fh->ov.setup_ok = 0; 3048 3049 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops, 3050 &btv->c.pci->dev, &btv->s_lock, 3051 V4L2_BUF_TYPE_VIDEO_CAPTURE, 3052 V4L2_FIELD_INTERLACED, 3053 sizeof(struct bttv_buffer), 3054 fh, &btv->lock); 3055 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops, 3056 &btv->c.pci->dev, &btv->s_lock, 3057 V4L2_BUF_TYPE_VBI_CAPTURE, 3058 V4L2_FIELD_SEQ_TB, 3059 sizeof(struct bttv_buffer), 3060 fh, &btv->lock); 3061 set_tvnorm(btv,btv->tvnorm); 3062 set_input(btv, btv->input, btv->tvnorm); 3063 audio_mute(btv, btv->mute); 3064 3065 /* The V4L2 spec requires one global set of cropping parameters 3066 which only change on request. These are stored in btv->crop[1]. 3067 However for compatibility with V4L apps and cropping unaware 3068 V4L2 apps we now reset the cropping parameters as seen through 3069 this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks 3070 will use btv->crop[0], the default cropping parameters for the 3071 current video standard, and VIDIOC_S_FMT will not implicitely 3072 change the cropping parameters until VIDIOC_S_SELECTION has been 3073 called. */ 3074 fh->do_crop = !reset_crop; /* module parameter */ 3075 3076 /* Likewise there should be one global set of VBI capture 3077 parameters, but for compatibility with V4L apps and earlier 3078 driver versions each fh has its own parameters. */ 3079 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm); 3080 3081 bttv_field_count(btv); 3082 v4l2_fh_add(&fh->fh); 3083 return 0; 3084 } 3085 3086 static int bttv_release(struct file *file) 3087 { 3088 struct bttv_fh *fh = file->private_data; 3089 struct bttv *btv = fh->btv; 3090 3091 /* turn off overlay */ 3092 if (check_btres(fh, RESOURCE_OVERLAY)) 3093 bttv_switch_overlay(btv,fh,NULL); 3094 3095 /* stop video capture */ 3096 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) { 3097 videobuf_streamoff(&fh->cap); 3098 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM); 3099 } 3100 if (fh->cap.read_buf) { 3101 buffer_release(&fh->cap,fh->cap.read_buf); 3102 kfree(fh->cap.read_buf); 3103 } 3104 if (check_btres(fh, RESOURCE_VIDEO_READ)) { 3105 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ); 3106 } 3107 3108 /* stop vbi capture */ 3109 if (check_btres(fh, RESOURCE_VBI)) { 3110 videobuf_stop(&fh->vbi); 3111 free_btres_lock(btv,fh,RESOURCE_VBI); 3112 } 3113 3114 /* free stuff */ 3115 3116 videobuf_mmap_free(&fh->cap); 3117 videobuf_mmap_free(&fh->vbi); 3118 file->private_data = NULL; 3119 3120 btv->users--; 3121 bttv_field_count(btv); 3122 3123 if (!btv->users) 3124 audio_mute(btv, btv->mute); 3125 3126 v4l2_fh_del(&fh->fh); 3127 v4l2_fh_exit(&fh->fh); 3128 kfree(fh); 3129 return 0; 3130 } 3131 3132 static int 3133 bttv_mmap(struct file *file, struct vm_area_struct *vma) 3134 { 3135 struct bttv_fh *fh = file->private_data; 3136 3137 dprintk("%d: mmap type=%s 0x%lx+%ld\n", 3138 fh->btv->c.nr, v4l2_type_names[fh->type], 3139 vma->vm_start, vma->vm_end - vma->vm_start); 3140 return videobuf_mmap_mapper(bttv_queue(fh),vma); 3141 } 3142 3143 static const struct v4l2_file_operations bttv_fops = 3144 { 3145 .owner = THIS_MODULE, 3146 .open = bttv_open, 3147 .release = bttv_release, 3148 .unlocked_ioctl = video_ioctl2, 3149 .read = bttv_read, 3150 .mmap = bttv_mmap, 3151 .poll = bttv_poll, 3152 }; 3153 3154 static const struct v4l2_ioctl_ops bttv_ioctl_ops = { 3155 .vidioc_querycap = bttv_querycap, 3156 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap, 3157 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap, 3158 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap, 3159 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap, 3160 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay, 3161 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay, 3162 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay, 3163 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay, 3164 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap, 3165 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, 3166 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap, 3167 .vidioc_cropcap = bttv_cropcap, 3168 .vidioc_reqbufs = bttv_reqbufs, 3169 .vidioc_querybuf = bttv_querybuf, 3170 .vidioc_qbuf = bttv_qbuf, 3171 .vidioc_dqbuf = bttv_dqbuf, 3172 .vidioc_s_std = bttv_s_std, 3173 .vidioc_g_std = bttv_g_std, 3174 .vidioc_enum_input = bttv_enum_input, 3175 .vidioc_g_input = bttv_g_input, 3176 .vidioc_s_input = bttv_s_input, 3177 .vidioc_streamon = bttv_streamon, 3178 .vidioc_streamoff = bttv_streamoff, 3179 .vidioc_g_tuner = bttv_g_tuner, 3180 .vidioc_s_tuner = bttv_s_tuner, 3181 .vidioc_g_selection = bttv_g_selection, 3182 .vidioc_s_selection = bttv_s_selection, 3183 .vidioc_g_fbuf = bttv_g_fbuf, 3184 .vidioc_s_fbuf = bttv_s_fbuf, 3185 .vidioc_overlay = bttv_overlay, 3186 .vidioc_g_parm = bttv_g_parm, 3187 .vidioc_g_frequency = bttv_g_frequency, 3188 .vidioc_s_frequency = bttv_s_frequency, 3189 .vidioc_log_status = bttv_log_status, 3190 .vidioc_querystd = bttv_querystd, 3191 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3192 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3193 #ifdef CONFIG_VIDEO_ADV_DEBUG 3194 .vidioc_g_register = bttv_g_register, 3195 .vidioc_s_register = bttv_s_register, 3196 #endif 3197 }; 3198 3199 static struct video_device bttv_video_template = { 3200 .fops = &bttv_fops, 3201 .ioctl_ops = &bttv_ioctl_ops, 3202 .tvnorms = BTTV_NORMS, 3203 }; 3204 3205 /* ----------------------------------------------------------------------- */ 3206 /* radio interface */ 3207 3208 static int radio_open(struct file *file) 3209 { 3210 struct video_device *vdev = video_devdata(file); 3211 struct bttv *btv = video_drvdata(file); 3212 struct bttv_fh *fh; 3213 3214 dprintk("open dev=%s\n", video_device_node_name(vdev)); 3215 3216 dprintk("%d: open called (radio)\n", btv->c.nr); 3217 3218 /* allocate per filehandle data */ 3219 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 3220 if (unlikely(!fh)) 3221 return -ENOMEM; 3222 file->private_data = fh; 3223 *fh = btv->init; 3224 v4l2_fh_init(&fh->fh, vdev); 3225 3226 btv->radio_user++; 3227 audio_mute(btv, btv->mute); 3228 3229 v4l2_fh_add(&fh->fh); 3230 3231 return 0; 3232 } 3233 3234 static int radio_release(struct file *file) 3235 { 3236 struct bttv_fh *fh = file->private_data; 3237 struct bttv *btv = fh->btv; 3238 struct saa6588_command cmd; 3239 3240 file->private_data = NULL; 3241 v4l2_fh_del(&fh->fh); 3242 v4l2_fh_exit(&fh->fh); 3243 kfree(fh); 3244 3245 btv->radio_user--; 3246 3247 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd); 3248 3249 if (btv->radio_user == 0) 3250 btv->has_radio_tuner = 0; 3251 return 0; 3252 } 3253 3254 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 3255 { 3256 struct bttv_fh *fh = priv; 3257 struct bttv *btv = fh->btv; 3258 3259 if (0 != t->index) 3260 return -EINVAL; 3261 strcpy(t->name, "Radio"); 3262 t->type = V4L2_TUNER_RADIO; 3263 radio_enable(btv); 3264 3265 bttv_call_all(btv, tuner, g_tuner, t); 3266 3267 if (btv->audio_mode_gpio) 3268 btv->audio_mode_gpio(btv, t, 0); 3269 3270 if (btv->has_tea575x) 3271 return snd_tea575x_g_tuner(&btv->tea, t); 3272 3273 return 0; 3274 } 3275 3276 static int radio_s_tuner(struct file *file, void *priv, 3277 const struct v4l2_tuner *t) 3278 { 3279 struct bttv_fh *fh = priv; 3280 struct bttv *btv = fh->btv; 3281 3282 if (0 != t->index) 3283 return -EINVAL; 3284 3285 radio_enable(btv); 3286 bttv_call_all(btv, tuner, s_tuner, t); 3287 return 0; 3288 } 3289 3290 static int radio_s_hw_freq_seek(struct file *file, void *priv, 3291 const struct v4l2_hw_freq_seek *a) 3292 { 3293 struct bttv_fh *fh = priv; 3294 struct bttv *btv = fh->btv; 3295 3296 if (btv->has_tea575x) 3297 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a); 3298 3299 return -ENOTTY; 3300 } 3301 3302 static int radio_enum_freq_bands(struct file *file, void *priv, 3303 struct v4l2_frequency_band *band) 3304 { 3305 struct bttv_fh *fh = priv; 3306 struct bttv *btv = fh->btv; 3307 3308 if (btv->has_tea575x) 3309 return snd_tea575x_enum_freq_bands(&btv->tea, band); 3310 3311 return -ENOTTY; 3312 } 3313 3314 static ssize_t radio_read(struct file *file, char __user *data, 3315 size_t count, loff_t *ppos) 3316 { 3317 struct bttv_fh *fh = file->private_data; 3318 struct bttv *btv = fh->btv; 3319 struct saa6588_command cmd; 3320 3321 cmd.block_count = count / 3; 3322 cmd.nonblocking = file->f_flags & O_NONBLOCK; 3323 cmd.buffer = data; 3324 cmd.instance = file; 3325 cmd.result = -ENODEV; 3326 radio_enable(btv); 3327 3328 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd); 3329 3330 return cmd.result; 3331 } 3332 3333 static unsigned int radio_poll(struct file *file, poll_table *wait) 3334 { 3335 struct bttv_fh *fh = file->private_data; 3336 struct bttv *btv = fh->btv; 3337 unsigned long req_events = poll_requested_events(wait); 3338 struct saa6588_command cmd; 3339 unsigned int res = 0; 3340 3341 if (v4l2_event_pending(&fh->fh)) 3342 res = POLLPRI; 3343 else if (req_events & POLLPRI) 3344 poll_wait(file, &fh->fh.wait, wait); 3345 radio_enable(btv); 3346 cmd.instance = file; 3347 cmd.event_list = wait; 3348 cmd.result = res; 3349 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd); 3350 3351 return cmd.result; 3352 } 3353 3354 static const struct v4l2_file_operations radio_fops = 3355 { 3356 .owner = THIS_MODULE, 3357 .open = radio_open, 3358 .read = radio_read, 3359 .release = radio_release, 3360 .unlocked_ioctl = video_ioctl2, 3361 .poll = radio_poll, 3362 }; 3363 3364 static const struct v4l2_ioctl_ops radio_ioctl_ops = { 3365 .vidioc_querycap = bttv_querycap, 3366 .vidioc_log_status = bttv_log_status, 3367 .vidioc_g_tuner = radio_g_tuner, 3368 .vidioc_s_tuner = radio_s_tuner, 3369 .vidioc_g_frequency = bttv_g_frequency, 3370 .vidioc_s_frequency = bttv_s_frequency, 3371 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek, 3372 .vidioc_enum_freq_bands = radio_enum_freq_bands, 3373 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3374 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3375 }; 3376 3377 static struct video_device radio_template = { 3378 .fops = &radio_fops, 3379 .ioctl_ops = &radio_ioctl_ops, 3380 }; 3381 3382 /* ----------------------------------------------------------------------- */ 3383 /* some debug code */ 3384 3385 static int bttv_risc_decode(u32 risc) 3386 { 3387 static char *instr[16] = { 3388 [ BT848_RISC_WRITE >> 28 ] = "write", 3389 [ BT848_RISC_SKIP >> 28 ] = "skip", 3390 [ BT848_RISC_WRITEC >> 28 ] = "writec", 3391 [ BT848_RISC_JUMP >> 28 ] = "jump", 3392 [ BT848_RISC_SYNC >> 28 ] = "sync", 3393 [ BT848_RISC_WRITE123 >> 28 ] = "write123", 3394 [ BT848_RISC_SKIP123 >> 28 ] = "skip123", 3395 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23", 3396 }; 3397 static int incr[16] = { 3398 [ BT848_RISC_WRITE >> 28 ] = 2, 3399 [ BT848_RISC_JUMP >> 28 ] = 2, 3400 [ BT848_RISC_SYNC >> 28 ] = 2, 3401 [ BT848_RISC_WRITE123 >> 28 ] = 5, 3402 [ BT848_RISC_SKIP123 >> 28 ] = 2, 3403 [ BT848_RISC_WRITE1S23 >> 28 ] = 3, 3404 }; 3405 static char *bits[] = { 3406 "be0", "be1", "be2", "be3/resync", 3407 "set0", "set1", "set2", "set3", 3408 "clr0", "clr1", "clr2", "clr3", 3409 "irq", "res", "eol", "sol", 3410 }; 3411 int i; 3412 3413 pr_cont("0x%08x [ %s", risc, 3414 instr[risc >> 28] ? instr[risc >> 28] : "INVALID"); 3415 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--) 3416 if (risc & (1 << (i + 12))) 3417 pr_cont(" %s", bits[i]); 3418 pr_cont(" count=%d ]\n", risc & 0xfff); 3419 return incr[risc >> 28] ? incr[risc >> 28] : 1; 3420 } 3421 3422 static void bttv_risc_disasm(struct bttv *btv, 3423 struct btcx_riscmem *risc) 3424 { 3425 unsigned int i,j,n; 3426 3427 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n", 3428 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma); 3429 for (i = 0; i < (risc->size >> 2); i += n) { 3430 pr_info("%s: 0x%lx: ", 3431 btv->c.v4l2_dev.name, 3432 (unsigned long)(risc->dma + (i<<2))); 3433 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i])); 3434 for (j = 1; j < n; j++) 3435 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n", 3436 btv->c.v4l2_dev.name, 3437 (unsigned long)(risc->dma + ((i+j)<<2)), 3438 risc->cpu[i+j], j); 3439 if (0 == risc->cpu[i]) 3440 break; 3441 } 3442 } 3443 3444 static void bttv_print_riscaddr(struct bttv *btv) 3445 { 3446 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma); 3447 pr_info(" vbi : o=%08llx e=%08llx\n", 3448 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, 3449 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0); 3450 pr_info(" cap : o=%08llx e=%08llx\n", 3451 btv->curr.top 3452 ? (unsigned long long)btv->curr.top->top.dma : 0, 3453 btv->curr.bottom 3454 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); 3455 pr_info(" scr : o=%08llx e=%08llx\n", 3456 btv->screen ? (unsigned long long)btv->screen->top.dma : 0, 3457 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0); 3458 bttv_risc_disasm(btv, &btv->main); 3459 } 3460 3461 /* ----------------------------------------------------------------------- */ 3462 /* irq handler */ 3463 3464 static char *irq_name[] = { 3465 "FMTCHG", // format change detected (525 vs. 625) 3466 "VSYNC", // vertical sync (new field) 3467 "HSYNC", // horizontal sync 3468 "OFLOW", // chroma/luma AGC overflow 3469 "HLOCK", // horizontal lock changed 3470 "VPRES", // video presence changed 3471 "6", "7", 3472 "I2CDONE", // hw irc operation finished 3473 "GPINT", // gpio port triggered irq 3474 "10", 3475 "RISCI", // risc instruction triggered irq 3476 "FBUS", // pixel data fifo dropped data (high pci bus latencies) 3477 "FTRGT", // pixel data fifo overrun 3478 "FDSR", // fifo data stream resyncronisation 3479 "PPERR", // parity error (data transfer) 3480 "RIPERR", // parity error (read risc instructions) 3481 "PABORT", // pci abort 3482 "OCERR", // risc instruction error 3483 "SCERR", // syncronisation error 3484 }; 3485 3486 static void bttv_print_irqbits(u32 print, u32 mark) 3487 { 3488 unsigned int i; 3489 3490 pr_cont("bits:"); 3491 for (i = 0; i < ARRAY_SIZE(irq_name); i++) { 3492 if (print & (1 << i)) 3493 pr_cont(" %s", irq_name[i]); 3494 if (mark & (1 << i)) 3495 pr_cont("*"); 3496 } 3497 } 3498 3499 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc) 3500 { 3501 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n", 3502 btv->c.nr, 3503 (unsigned long)btv->main.dma, 3504 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]), 3505 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]), 3506 (unsigned long)rc); 3507 3508 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) { 3509 pr_notice("%d: Oh, there (temporarily?) is no input signal. " 3510 "Ok, then this is harmless, don't worry ;)\n", 3511 btv->c.nr); 3512 return; 3513 } 3514 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n", 3515 btv->c.nr); 3516 pr_notice("%d: Lets try to catch the culpit red-handed ...\n", 3517 btv->c.nr); 3518 dump_stack(); 3519 } 3520 3521 static int 3522 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set) 3523 { 3524 struct bttv_buffer *item; 3525 3526 memset(set,0,sizeof(*set)); 3527 3528 /* capture request ? */ 3529 if (!list_empty(&btv->capture)) { 3530 set->frame_irq = 1; 3531 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3532 if (V4L2_FIELD_HAS_TOP(item->vb.field)) 3533 set->top = item; 3534 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field)) 3535 set->bottom = item; 3536 3537 /* capture request for other field ? */ 3538 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) && 3539 (item->vb.queue.next != &btv->capture)) { 3540 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue); 3541 /* Mike Isely <isely@pobox.com> - Only check 3542 * and set up the bottom field in the logic 3543 * below. Don't ever do the top field. This 3544 * of course means that if we set up the 3545 * bottom field in the above code that we'll 3546 * actually skip a field. But that's OK. 3547 * Having processed only a single buffer this 3548 * time, then the next time around the first 3549 * available buffer should be for a top field. 3550 * That will then cause us here to set up a 3551 * top then a bottom field in the normal way. 3552 * The alternative to this understanding is 3553 * that we set up the second available buffer 3554 * as a top field, but that's out of order 3555 * since this driver always processes the top 3556 * field first - the effect will be the two 3557 * buffers being returned in the wrong order, 3558 * with the second buffer also being delayed 3559 * by one field time (owing to the fifo nature 3560 * of videobuf). Worse still, we'll be stuck 3561 * doing fields out of order now every time 3562 * until something else causes a field to be 3563 * dropped. By effectively forcing a field to 3564 * drop this way then we always get back into 3565 * sync within a single frame time. (Out of 3566 * order fields can screw up deinterlacing 3567 * algorithms.) */ 3568 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) { 3569 if (NULL == set->bottom && 3570 V4L2_FIELD_BOTTOM == item->vb.field) { 3571 set->bottom = item; 3572 } 3573 if (NULL != set->top && NULL != set->bottom) 3574 set->top_irq = 2; 3575 } 3576 } 3577 } 3578 3579 /* screen overlay ? */ 3580 if (NULL != btv->screen) { 3581 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) { 3582 if (NULL == set->top && NULL == set->bottom) { 3583 set->top = btv->screen; 3584 set->bottom = btv->screen; 3585 } 3586 } else { 3587 if (V4L2_FIELD_TOP == btv->screen->vb.field && 3588 NULL == set->top) { 3589 set->top = btv->screen; 3590 } 3591 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field && 3592 NULL == set->bottom) { 3593 set->bottom = btv->screen; 3594 } 3595 } 3596 } 3597 3598 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n", 3599 btv->c.nr, set->top, set->bottom, 3600 btv->screen, set->frame_irq, set->top_irq); 3601 return 0; 3602 } 3603 3604 static void 3605 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup, 3606 struct bttv_buffer_set *curr, unsigned int state) 3607 { 3608 struct timeval ts; 3609 3610 v4l2_get_timestamp(&ts); 3611 3612 if (wakeup->top == wakeup->bottom) { 3613 if (NULL != wakeup->top && curr->top != wakeup->top) { 3614 if (irq_debug > 1) 3615 pr_debug("%d: wakeup: both=%p\n", 3616 btv->c.nr, wakeup->top); 3617 wakeup->top->vb.ts = ts; 3618 wakeup->top->vb.field_count = btv->field_count; 3619 wakeup->top->vb.state = state; 3620 wake_up(&wakeup->top->vb.done); 3621 } 3622 } else { 3623 if (NULL != wakeup->top && curr->top != wakeup->top) { 3624 if (irq_debug > 1) 3625 pr_debug("%d: wakeup: top=%p\n", 3626 btv->c.nr, wakeup->top); 3627 wakeup->top->vb.ts = ts; 3628 wakeup->top->vb.field_count = btv->field_count; 3629 wakeup->top->vb.state = state; 3630 wake_up(&wakeup->top->vb.done); 3631 } 3632 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) { 3633 if (irq_debug > 1) 3634 pr_debug("%d: wakeup: bottom=%p\n", 3635 btv->c.nr, wakeup->bottom); 3636 wakeup->bottom->vb.ts = ts; 3637 wakeup->bottom->vb.field_count = btv->field_count; 3638 wakeup->bottom->vb.state = state; 3639 wake_up(&wakeup->bottom->vb.done); 3640 } 3641 } 3642 } 3643 3644 static void 3645 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup, 3646 unsigned int state) 3647 { 3648 if (NULL == wakeup) 3649 return; 3650 3651 v4l2_get_timestamp(&wakeup->vb.ts); 3652 wakeup->vb.field_count = btv->field_count; 3653 wakeup->vb.state = state; 3654 wake_up(&wakeup->vb.done); 3655 } 3656 3657 static void bttv_irq_timeout(unsigned long data) 3658 { 3659 struct bttv *btv = (struct bttv *)data; 3660 struct bttv_buffer_set old,new; 3661 struct bttv_buffer *ovbi; 3662 struct bttv_buffer *item; 3663 unsigned long flags; 3664 3665 if (bttv_verbose) { 3666 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ", 3667 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total, 3668 btread(BT848_RISC_COUNT)); 3669 bttv_print_irqbits(btread(BT848_INT_STAT),0); 3670 pr_cont("\n"); 3671 } 3672 3673 spin_lock_irqsave(&btv->s_lock,flags); 3674 3675 /* deactivate stuff */ 3676 memset(&new,0,sizeof(new)); 3677 old = btv->curr; 3678 ovbi = btv->cvbi; 3679 btv->curr = new; 3680 btv->cvbi = NULL; 3681 btv->loop_irq = 0; 3682 bttv_buffer_activate_video(btv, &new); 3683 bttv_buffer_activate_vbi(btv, NULL); 3684 bttv_set_dma(btv, 0); 3685 3686 /* wake up */ 3687 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR); 3688 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR); 3689 3690 /* cancel all outstanding capture / vbi requests */ 3691 while (!list_empty(&btv->capture)) { 3692 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3693 list_del(&item->vb.queue); 3694 item->vb.state = VIDEOBUF_ERROR; 3695 wake_up(&item->vb.done); 3696 } 3697 while (!list_empty(&btv->vcapture)) { 3698 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3699 list_del(&item->vb.queue); 3700 item->vb.state = VIDEOBUF_ERROR; 3701 wake_up(&item->vb.done); 3702 } 3703 3704 btv->errors++; 3705 spin_unlock_irqrestore(&btv->s_lock,flags); 3706 } 3707 3708 static void 3709 bttv_irq_wakeup_top(struct bttv *btv) 3710 { 3711 struct bttv_buffer *wakeup = btv->curr.top; 3712 3713 if (NULL == wakeup) 3714 return; 3715 3716 spin_lock(&btv->s_lock); 3717 btv->curr.top_irq = 0; 3718 btv->curr.top = NULL; 3719 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); 3720 3721 v4l2_get_timestamp(&wakeup->vb.ts); 3722 wakeup->vb.field_count = btv->field_count; 3723 wakeup->vb.state = VIDEOBUF_DONE; 3724 wake_up(&wakeup->vb.done); 3725 spin_unlock(&btv->s_lock); 3726 } 3727 3728 static inline int is_active(struct btcx_riscmem *risc, u32 rc) 3729 { 3730 if (rc < risc->dma) 3731 return 0; 3732 if (rc > risc->dma + risc->size) 3733 return 0; 3734 return 1; 3735 } 3736 3737 static void 3738 bttv_irq_switch_video(struct bttv *btv) 3739 { 3740 struct bttv_buffer_set new; 3741 struct bttv_buffer_set old; 3742 dma_addr_t rc; 3743 3744 spin_lock(&btv->s_lock); 3745 3746 /* new buffer set */ 3747 bttv_irq_next_video(btv, &new); 3748 rc = btread(BT848_RISC_COUNT); 3749 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) || 3750 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) { 3751 btv->framedrop++; 3752 if (debug_latency) 3753 bttv_irq_debug_low_latency(btv, rc); 3754 spin_unlock(&btv->s_lock); 3755 return; 3756 } 3757 3758 /* switch over */ 3759 old = btv->curr; 3760 btv->curr = new; 3761 btv->loop_irq &= ~1; 3762 bttv_buffer_activate_video(btv, &new); 3763 bttv_set_dma(btv, 0); 3764 3765 /* switch input */ 3766 if (UNSET != btv->new_input) { 3767 video_mux(btv,btv->new_input); 3768 btv->new_input = UNSET; 3769 } 3770 3771 /* wake up finished buffers */ 3772 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE); 3773 spin_unlock(&btv->s_lock); 3774 } 3775 3776 static void 3777 bttv_irq_switch_vbi(struct bttv *btv) 3778 { 3779 struct bttv_buffer *new = NULL; 3780 struct bttv_buffer *old; 3781 u32 rc; 3782 3783 spin_lock(&btv->s_lock); 3784 3785 if (!list_empty(&btv->vcapture)) 3786 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3787 old = btv->cvbi; 3788 3789 rc = btread(BT848_RISC_COUNT); 3790 if (NULL != old && (is_active(&old->top, rc) || 3791 is_active(&old->bottom, rc))) { 3792 btv->framedrop++; 3793 if (debug_latency) 3794 bttv_irq_debug_low_latency(btv, rc); 3795 spin_unlock(&btv->s_lock); 3796 return; 3797 } 3798 3799 /* switch */ 3800 btv->cvbi = new; 3801 btv->loop_irq &= ~4; 3802 bttv_buffer_activate_vbi(btv, new); 3803 bttv_set_dma(btv, 0); 3804 3805 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE); 3806 spin_unlock(&btv->s_lock); 3807 } 3808 3809 static irqreturn_t bttv_irq(int irq, void *dev_id) 3810 { 3811 u32 stat,astat; 3812 u32 dstat; 3813 int count; 3814 struct bttv *btv; 3815 int handled = 0; 3816 3817 btv=(struct bttv *)dev_id; 3818 3819 count=0; 3820 while (1) { 3821 /* get/clear interrupt status bits */ 3822 stat=btread(BT848_INT_STAT); 3823 astat=stat&btread(BT848_INT_MASK); 3824 if (!astat) 3825 break; 3826 handled = 1; 3827 btwrite(stat,BT848_INT_STAT); 3828 3829 /* get device status bits */ 3830 dstat=btread(BT848_DSTATUS); 3831 3832 if (irq_debug) { 3833 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ", 3834 btv->c.nr, count, btv->field_count, 3835 stat>>28, btread(BT848_RISC_COUNT)); 3836 bttv_print_irqbits(stat,astat); 3837 if (stat & BT848_INT_HLOCK) 3838 pr_cont(" HLOC => %s", 3839 dstat & BT848_DSTATUS_HLOC 3840 ? "yes" : "no"); 3841 if (stat & BT848_INT_VPRES) 3842 pr_cont(" PRES => %s", 3843 dstat & BT848_DSTATUS_PRES 3844 ? "yes" : "no"); 3845 if (stat & BT848_INT_FMTCHG) 3846 pr_cont(" NUML => %s", 3847 dstat & BT848_DSTATUS_NUML 3848 ? "625" : "525"); 3849 pr_cont("\n"); 3850 } 3851 3852 if (astat&BT848_INT_VSYNC) 3853 btv->field_count++; 3854 3855 if ((astat & BT848_INT_GPINT) && btv->remote) { 3856 bttv_input_irq(btv); 3857 } 3858 3859 if (astat & BT848_INT_I2CDONE) { 3860 btv->i2c_done = stat; 3861 wake_up(&btv->i2c_queue); 3862 } 3863 3864 if ((astat & BT848_INT_RISCI) && (stat & (4<<28))) 3865 bttv_irq_switch_vbi(btv); 3866 3867 if ((astat & BT848_INT_RISCI) && (stat & (2<<28))) 3868 bttv_irq_wakeup_top(btv); 3869 3870 if ((astat & BT848_INT_RISCI) && (stat & (1<<28))) 3871 bttv_irq_switch_video(btv); 3872 3873 if ((astat & BT848_INT_HLOCK) && btv->opt_automute) 3874 /* trigger automute */ 3875 audio_mux_gpio(btv, btv->audio_input, btv->mute); 3876 3877 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) { 3878 pr_info("%d: %s%s @ %08x,", 3879 btv->c.nr, 3880 (astat & BT848_INT_SCERR) ? "SCERR" : "", 3881 (astat & BT848_INT_OCERR) ? "OCERR" : "", 3882 btread(BT848_RISC_COUNT)); 3883 bttv_print_irqbits(stat,astat); 3884 pr_cont("\n"); 3885 if (bttv_debug) 3886 bttv_print_riscaddr(btv); 3887 } 3888 if (fdsr && astat & BT848_INT_FDSR) { 3889 pr_info("%d: FDSR @ %08x\n", 3890 btv->c.nr, btread(BT848_RISC_COUNT)); 3891 if (bttv_debug) 3892 bttv_print_riscaddr(btv); 3893 } 3894 3895 count++; 3896 if (count > 4) { 3897 3898 if (count > 8 || !(astat & BT848_INT_GPINT)) { 3899 btwrite(0, BT848_INT_MASK); 3900 3901 pr_err("%d: IRQ lockup, cleared int mask [", 3902 btv->c.nr); 3903 } else { 3904 pr_err("%d: IRQ lockup, clearing GPINT from int mask [", 3905 btv->c.nr); 3906 3907 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT), 3908 BT848_INT_MASK); 3909 } 3910 3911 bttv_print_irqbits(stat,astat); 3912 3913 pr_cont("]\n"); 3914 } 3915 } 3916 btv->irq_total++; 3917 if (handled) 3918 btv->irq_me++; 3919 return IRQ_RETVAL(handled); 3920 } 3921 3922 3923 /* ----------------------------------------------------------------------- */ 3924 /* initialization */ 3925 3926 static void vdev_init(struct bttv *btv, 3927 struct video_device *vfd, 3928 const struct video_device *template, 3929 const char *type_name) 3930 { 3931 *vfd = *template; 3932 vfd->v4l2_dev = &btv->c.v4l2_dev; 3933 vfd->release = video_device_release_empty; 3934 video_set_drvdata(vfd, btv); 3935 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)", 3936 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "", 3937 type_name, bttv_tvcards[btv->c.type].name); 3938 if (btv->tuner_type == TUNER_ABSENT) { 3939 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); 3940 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); 3941 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); 3942 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); 3943 } 3944 } 3945 3946 static void bttv_unregister_video(struct bttv *btv) 3947 { 3948 video_unregister_device(&btv->video_dev); 3949 video_unregister_device(&btv->vbi_dev); 3950 video_unregister_device(&btv->radio_dev); 3951 } 3952 3953 /* register video4linux devices */ 3954 static int bttv_register_video(struct bttv *btv) 3955 { 3956 if (no_overlay > 0) 3957 pr_notice("Overlay support disabled\n"); 3958 3959 /* video */ 3960 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video"); 3961 3962 if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER, 3963 video_nr[btv->c.nr]) < 0) 3964 goto err; 3965 pr_info("%d: registered device %s\n", 3966 btv->c.nr, video_device_node_name(&btv->video_dev)); 3967 if (device_create_file(&btv->video_dev.dev, 3968 &dev_attr_card)<0) { 3969 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr); 3970 goto err; 3971 } 3972 3973 /* vbi */ 3974 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi"); 3975 3976 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI, 3977 vbi_nr[btv->c.nr]) < 0) 3978 goto err; 3979 pr_info("%d: registered device %s\n", 3980 btv->c.nr, video_device_node_name(&btv->vbi_dev)); 3981 3982 if (!btv->has_radio) 3983 return 0; 3984 /* radio */ 3985 vdev_init(btv, &btv->radio_dev, &radio_template, "radio"); 3986 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler; 3987 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO, 3988 radio_nr[btv->c.nr]) < 0) 3989 goto err; 3990 pr_info("%d: registered device %s\n", 3991 btv->c.nr, video_device_node_name(&btv->radio_dev)); 3992 3993 /* all done */ 3994 return 0; 3995 3996 err: 3997 bttv_unregister_video(btv); 3998 return -1; 3999 } 4000 4001 4002 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ 4003 /* response on cards with no firmware is not enabled by OF */ 4004 static void pci_set_command(struct pci_dev *dev) 4005 { 4006 #if defined(__powerpc__) 4007 unsigned int cmd; 4008 4009 pci_read_config_dword(dev, PCI_COMMAND, &cmd); 4010 cmd = (cmd | PCI_COMMAND_MEMORY ); 4011 pci_write_config_dword(dev, PCI_COMMAND, cmd); 4012 #endif 4013 } 4014 4015 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) 4016 { 4017 struct v4l2_frequency init_freq = { 4018 .tuner = 0, 4019 .type = V4L2_TUNER_ANALOG_TV, 4020 .frequency = 980, 4021 }; 4022 int result; 4023 unsigned char lat; 4024 struct bttv *btv; 4025 struct v4l2_ctrl_handler *hdl; 4026 4027 if (bttv_num == BTTV_MAX) 4028 return -ENOMEM; 4029 pr_info("Bt8xx card found (%d)\n", bttv_num); 4030 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL); 4031 if (btv == NULL) { 4032 pr_err("out of memory\n"); 4033 return -ENOMEM; 4034 } 4035 btv->c.nr = bttv_num; 4036 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name), 4037 "bttv%d", btv->c.nr); 4038 4039 /* initialize structs / fill in defaults */ 4040 mutex_init(&btv->lock); 4041 spin_lock_init(&btv->s_lock); 4042 spin_lock_init(&btv->gpio_lock); 4043 init_waitqueue_head(&btv->i2c_queue); 4044 INIT_LIST_HEAD(&btv->c.subs); 4045 INIT_LIST_HEAD(&btv->capture); 4046 INIT_LIST_HEAD(&btv->vcapture); 4047 4048 init_timer(&btv->timeout); 4049 btv->timeout.function = bttv_irq_timeout; 4050 btv->timeout.data = (unsigned long)btv; 4051 4052 btv->i2c_rc = -1; 4053 btv->tuner_type = UNSET; 4054 btv->new_input = UNSET; 4055 btv->has_radio=radio[btv->c.nr]; 4056 4057 /* pci stuff (init, get irq/mmio, ... */ 4058 btv->c.pci = dev; 4059 btv->id = dev->device; 4060 if (pci_enable_device(dev)) { 4061 pr_warn("%d: Can't enable device\n", btv->c.nr); 4062 return -EIO; 4063 } 4064 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) { 4065 pr_warn("%d: No suitable DMA available\n", btv->c.nr); 4066 return -EIO; 4067 } 4068 if (!request_mem_region(pci_resource_start(dev,0), 4069 pci_resource_len(dev,0), 4070 btv->c.v4l2_dev.name)) { 4071 pr_warn("%d: can't request iomem (0x%llx)\n", 4072 btv->c.nr, 4073 (unsigned long long)pci_resource_start(dev, 0)); 4074 return -EBUSY; 4075 } 4076 pci_set_master(dev); 4077 pci_set_command(dev); 4078 4079 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev); 4080 if (result < 0) { 4081 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr); 4082 goto fail0; 4083 } 4084 hdl = &btv->ctrl_handler; 4085 v4l2_ctrl_handler_init(hdl, 20); 4086 btv->c.v4l2_dev.ctrl_handler = hdl; 4087 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6); 4088 4089 btv->revision = dev->revision; 4090 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); 4091 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n", 4092 bttv_num, btv->id, btv->revision, pci_name(dev), 4093 btv->c.pci->irq, lat, 4094 (unsigned long long)pci_resource_start(dev, 0)); 4095 schedule(); 4096 4097 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000); 4098 if (NULL == btv->bt848_mmio) { 4099 pr_err("%d: ioremap() failed\n", btv->c.nr); 4100 result = -EIO; 4101 goto fail1; 4102 } 4103 4104 /* identify card */ 4105 bttv_idcard(btv); 4106 4107 /* disable irqs, register irq handler */ 4108 btwrite(0, BT848_INT_MASK); 4109 result = request_irq(btv->c.pci->irq, bttv_irq, 4110 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv); 4111 if (result < 0) { 4112 pr_err("%d: can't get IRQ %d\n", 4113 bttv_num, btv->c.pci->irq); 4114 goto fail1; 4115 } 4116 4117 if (0 != bttv_handle_chipset(btv)) { 4118 result = -EIO; 4119 goto fail2; 4120 } 4121 4122 /* init options from insmod args */ 4123 btv->opt_combfilter = combfilter; 4124 bttv_ctrl_combfilter.def = combfilter; 4125 bttv_ctrl_lumafilter.def = lumafilter; 4126 btv->opt_automute = automute; 4127 bttv_ctrl_automute.def = automute; 4128 bttv_ctrl_agc_crush.def = agc_crush; 4129 btv->opt_vcr_hack = vcr_hack; 4130 bttv_ctrl_vcr_hack.def = vcr_hack; 4131 bttv_ctrl_whitecrush_upper.def = whitecrush_upper; 4132 bttv_ctrl_whitecrush_lower.def = whitecrush_lower; 4133 btv->opt_uv_ratio = uv_ratio; 4134 bttv_ctrl_uv_ratio.def = uv_ratio; 4135 bttv_ctrl_full_luma.def = full_luma_range; 4136 bttv_ctrl_coring.def = coring; 4137 4138 /* fill struct bttv with some useful defaults */ 4139 btv->init.btv = btv; 4140 btv->init.ov.w.width = 320; 4141 btv->init.ov.w.height = 240; 4142 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 4143 btv->init.width = 320; 4144 btv->init.height = 240; 4145 btv->init.ov.w.width = 320; 4146 btv->init.ov.w.height = 240; 4147 btv->init.ov.field = V4L2_FIELD_INTERLACED; 4148 btv->input = 0; 4149 4150 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4151 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768); 4152 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4153 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00); 4154 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4155 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768); 4156 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4157 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0); 4158 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4159 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768); 4160 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4161 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc); 4162 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4163 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 4164 if (btv->volume_gpio) 4165 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4166 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00); 4167 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL); 4168 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL); 4169 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL); 4170 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL); 4171 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL); 4172 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL); 4173 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL); 4174 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL); 4175 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL); 4176 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL); 4177 4178 /* initialize hardware */ 4179 if (bttv_gpio) 4180 bttv_gpio_tracking(btv,"pre-init"); 4181 4182 bttv_risc_init_main(btv); 4183 init_bt848(btv); 4184 4185 /* gpio */ 4186 btwrite(0x00, BT848_GPIO_REG_INP); 4187 btwrite(0x00, BT848_GPIO_OUT_EN); 4188 if (bttv_verbose) 4189 bttv_gpio_tracking(btv,"init"); 4190 4191 /* needs to be done before i2c is registered */ 4192 bttv_init_card1(btv); 4193 4194 /* register i2c + gpio */ 4195 init_bttv_i2c(btv); 4196 4197 /* some card-specific stuff (needs working i2c) */ 4198 bttv_init_card2(btv); 4199 bttv_init_tuner(btv); 4200 if (btv->tuner_type != TUNER_ABSENT) { 4201 bttv_set_frequency(btv, &init_freq); 4202 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */ 4203 } 4204 btv->std = V4L2_STD_PAL; 4205 init_irqreg(btv); 4206 if (!bttv_tvcards[btv->c.type].no_video) 4207 v4l2_ctrl_handler_setup(hdl); 4208 if (hdl->error) { 4209 result = hdl->error; 4210 goto fail2; 4211 } 4212 /* mute device */ 4213 audio_mute(btv, 1); 4214 4215 /* register video4linux + input */ 4216 if (!bttv_tvcards[btv->c.type].no_video) { 4217 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl, 4218 v4l2_ctrl_radio_filter); 4219 if (btv->radio_ctrl_handler.error) { 4220 result = btv->radio_ctrl_handler.error; 4221 goto fail2; 4222 } 4223 set_input(btv, 0, btv->tvnorm); 4224 bttv_crop_reset(&btv->crop[0], btv->tvnorm); 4225 btv->crop[1] = btv->crop[0]; /* current = default */ 4226 disclaim_vbi_lines(btv); 4227 disclaim_video_lines(btv); 4228 bttv_register_video(btv); 4229 } 4230 4231 /* add subdevices and autoload dvb-bt8xx if needed */ 4232 if (bttv_tvcards[btv->c.type].has_dvb) { 4233 bttv_sub_add_device(&btv->c, "dvb"); 4234 request_modules(btv); 4235 } 4236 4237 if (!disable_ir) { 4238 init_bttv_i2c_ir(btv); 4239 bttv_input_init(btv); 4240 } 4241 4242 /* everything is fine */ 4243 bttv_num++; 4244 return 0; 4245 4246 fail2: 4247 free_irq(btv->c.pci->irq,btv); 4248 4249 fail1: 4250 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4251 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4252 v4l2_device_unregister(&btv->c.v4l2_dev); 4253 4254 fail0: 4255 if (btv->bt848_mmio) 4256 iounmap(btv->bt848_mmio); 4257 release_mem_region(pci_resource_start(btv->c.pci,0), 4258 pci_resource_len(btv->c.pci,0)); 4259 pci_disable_device(btv->c.pci); 4260 return result; 4261 } 4262 4263 static void bttv_remove(struct pci_dev *pci_dev) 4264 { 4265 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4266 struct bttv *btv = to_bttv(v4l2_dev); 4267 4268 if (bttv_verbose) 4269 pr_info("%d: unloading\n", btv->c.nr); 4270 4271 if (bttv_tvcards[btv->c.type].has_dvb) 4272 flush_request_modules(btv); 4273 4274 /* shutdown everything (DMA+IRQs) */ 4275 btand(~15, BT848_GPIO_DMA_CTL); 4276 btwrite(0, BT848_INT_MASK); 4277 btwrite(~0x0, BT848_INT_STAT); 4278 btwrite(0x0, BT848_GPIO_OUT_EN); 4279 if (bttv_gpio) 4280 bttv_gpio_tracking(btv,"cleanup"); 4281 4282 /* tell gpio modules we are leaving ... */ 4283 btv->shutdown=1; 4284 bttv_input_fini(btv); 4285 bttv_sub_del_devices(&btv->c); 4286 4287 /* unregister i2c_bus + input */ 4288 fini_bttv_i2c(btv); 4289 4290 /* unregister video4linux */ 4291 bttv_unregister_video(btv); 4292 4293 /* free allocated memory */ 4294 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4295 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4296 btcx_riscmem_free(btv->c.pci,&btv->main); 4297 4298 /* free resources */ 4299 free_irq(btv->c.pci->irq,btv); 4300 iounmap(btv->bt848_mmio); 4301 release_mem_region(pci_resource_start(btv->c.pci,0), 4302 pci_resource_len(btv->c.pci,0)); 4303 pci_disable_device(btv->c.pci); 4304 4305 v4l2_device_unregister(&btv->c.v4l2_dev); 4306 bttvs[btv->c.nr] = NULL; 4307 kfree(btv); 4308 4309 return; 4310 } 4311 4312 #ifdef CONFIG_PM 4313 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state) 4314 { 4315 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4316 struct bttv *btv = to_bttv(v4l2_dev); 4317 struct bttv_buffer_set idle; 4318 unsigned long flags; 4319 4320 dprintk("%d: suspend %d\n", btv->c.nr, state.event); 4321 4322 /* stop dma + irqs */ 4323 spin_lock_irqsave(&btv->s_lock,flags); 4324 memset(&idle, 0, sizeof(idle)); 4325 btv->state.video = btv->curr; 4326 btv->state.vbi = btv->cvbi; 4327 btv->state.loop_irq = btv->loop_irq; 4328 btv->curr = idle; 4329 btv->loop_irq = 0; 4330 bttv_buffer_activate_video(btv, &idle); 4331 bttv_buffer_activate_vbi(btv, NULL); 4332 bttv_set_dma(btv, 0); 4333 btwrite(0, BT848_INT_MASK); 4334 spin_unlock_irqrestore(&btv->s_lock,flags); 4335 4336 /* save bt878 state */ 4337 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN); 4338 btv->state.gpio_data = gpio_read(); 4339 4340 /* save pci state */ 4341 pci_save_state(pci_dev); 4342 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) { 4343 pci_disable_device(pci_dev); 4344 btv->state.disabled = 1; 4345 } 4346 return 0; 4347 } 4348 4349 static int bttv_resume(struct pci_dev *pci_dev) 4350 { 4351 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4352 struct bttv *btv = to_bttv(v4l2_dev); 4353 unsigned long flags; 4354 int err; 4355 4356 dprintk("%d: resume\n", btv->c.nr); 4357 4358 /* restore pci state */ 4359 if (btv->state.disabled) { 4360 err=pci_enable_device(pci_dev); 4361 if (err) { 4362 pr_warn("%d: Can't enable device\n", btv->c.nr); 4363 return err; 4364 } 4365 btv->state.disabled = 0; 4366 } 4367 err=pci_set_power_state(pci_dev, PCI_D0); 4368 if (err) { 4369 pci_disable_device(pci_dev); 4370 pr_warn("%d: Can't enable device\n", btv->c.nr); 4371 btv->state.disabled = 1; 4372 return err; 4373 } 4374 4375 pci_restore_state(pci_dev); 4376 4377 /* restore bt878 state */ 4378 bttv_reinit_bt848(btv); 4379 gpio_inout(0xffffff, btv->state.gpio_enable); 4380 gpio_write(btv->state.gpio_data); 4381 4382 /* restart dma */ 4383 spin_lock_irqsave(&btv->s_lock,flags); 4384 btv->curr = btv->state.video; 4385 btv->cvbi = btv->state.vbi; 4386 btv->loop_irq = btv->state.loop_irq; 4387 bttv_buffer_activate_video(btv, &btv->curr); 4388 bttv_buffer_activate_vbi(btv, btv->cvbi); 4389 bttv_set_dma(btv, 0); 4390 spin_unlock_irqrestore(&btv->s_lock,flags); 4391 return 0; 4392 } 4393 #endif 4394 4395 static struct pci_device_id bttv_pci_tbl[] = { 4396 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0}, 4397 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0}, 4398 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0}, 4399 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0}, 4400 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0}, 4401 {0,} 4402 }; 4403 4404 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl); 4405 4406 static struct pci_driver bttv_pci_driver = { 4407 .name = "bttv", 4408 .id_table = bttv_pci_tbl, 4409 .probe = bttv_probe, 4410 .remove = bttv_remove, 4411 #ifdef CONFIG_PM 4412 .suspend = bttv_suspend, 4413 .resume = bttv_resume, 4414 #endif 4415 }; 4416 4417 static int __init bttv_init_module(void) 4418 { 4419 int ret; 4420 4421 bttv_num = 0; 4422 4423 pr_info("driver version %s loaded\n", BTTV_VERSION); 4424 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) 4425 gbuffers = 2; 4426 if (gbufsize > BTTV_MAX_FBUF) 4427 gbufsize = BTTV_MAX_FBUF; 4428 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; 4429 if (bttv_verbose) 4430 pr_info("using %d buffers with %dk (%d pages) each for capture\n", 4431 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT); 4432 4433 bttv_check_chipset(); 4434 4435 ret = bus_register(&bttv_sub_bus_type); 4436 if (ret < 0) { 4437 pr_warn("bus_register error: %d\n", ret); 4438 return ret; 4439 } 4440 ret = pci_register_driver(&bttv_pci_driver); 4441 if (ret < 0) 4442 bus_unregister(&bttv_sub_bus_type); 4443 4444 return ret; 4445 } 4446 4447 static void __exit bttv_cleanup_module(void) 4448 { 4449 pci_unregister_driver(&bttv_pci_driver); 4450 bus_unregister(&bttv_sub_bus_type); 4451 } 4452 4453 module_init(bttv_init_module); 4454 module_exit(bttv_cleanup_module); 4455