1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 4 bttv - Bt848 frame grabber driver 5 6 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de> 7 & Marcus Metzler <mocm@thp.uni-koeln.de> 8 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org> 9 10 some v4l2 code lines are taken from Justin's bttv2 driver which is 11 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za> 12 13 V4L1 removal from: 14 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru> 15 16 Fixes to be fully V4L2 compliant by 17 (c) 2006 Mauro Carvalho Chehab <mchehab@kernel.org> 18 19 Cropping and overscan support 20 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at> 21 Sponsored by OPQ Systems AB 22 23 */ 24 25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 26 27 #include <linux/init.h> 28 #include <linux/module.h> 29 #include <linux/delay.h> 30 #include <linux/slab.h> 31 #include <linux/errno.h> 32 #include <linux/fs.h> 33 #include <linux/kernel.h> 34 #include <linux/sched.h> 35 #include <linux/interrupt.h> 36 #include <linux/kdev_t.h> 37 #include "bttvp.h" 38 #include <media/v4l2-common.h> 39 #include <media/v4l2-ioctl.h> 40 #include <media/v4l2-event.h> 41 #include <media/i2c/tvaudio.h> 42 #include <media/drv-intf/msp3400.h> 43 44 #include <linux/dma-mapping.h> 45 46 #include <asm/io.h> 47 #include <asm/byteorder.h> 48 49 #include <media/i2c/saa6588.h> 50 51 #define BTTV_VERSION "0.9.19" 52 53 unsigned int bttv_num; /* number of Bt848s in use */ 54 struct bttv *bttvs[BTTV_MAX]; 55 56 unsigned int bttv_debug; 57 unsigned int bttv_verbose = 1; 58 unsigned int bttv_gpio; 59 60 /* config variables */ 61 #ifdef __BIG_ENDIAN 62 static unsigned int bigendian=1; 63 #else 64 static unsigned int bigendian; 65 #endif 66 static unsigned int radio[BTTV_MAX]; 67 static unsigned int irq_debug; 68 static unsigned int gbuffers = 8; 69 static unsigned int gbufsize = 0x208000; 70 static unsigned int reset_crop = 1; 71 72 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 73 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 74 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; 75 static int debug_latency; 76 static int disable_ir; 77 78 static unsigned int fdsr; 79 80 /* options */ 81 static unsigned int combfilter; 82 static unsigned int lumafilter; 83 static unsigned int automute = 1; 84 static unsigned int chroma_agc; 85 static unsigned int agc_crush = 1; 86 static unsigned int whitecrush_upper = 0xCF; 87 static unsigned int whitecrush_lower = 0x7F; 88 static unsigned int vcr_hack; 89 static unsigned int irq_iswitch; 90 static unsigned int uv_ratio = 50; 91 static unsigned int full_luma_range; 92 static unsigned int coring; 93 94 /* API features (turn on/off stuff for testing) */ 95 static unsigned int v4l2 = 1; 96 97 /* insmod args */ 98 module_param(bttv_verbose, int, 0644); 99 module_param(bttv_gpio, int, 0644); 100 module_param(bttv_debug, int, 0644); 101 module_param(irq_debug, int, 0644); 102 module_param(debug_latency, int, 0644); 103 module_param(disable_ir, int, 0444); 104 105 module_param(fdsr, int, 0444); 106 module_param(gbuffers, int, 0444); 107 module_param(gbufsize, int, 0444); 108 module_param(reset_crop, int, 0444); 109 110 module_param(v4l2, int, 0644); 111 module_param(bigendian, int, 0644); 112 module_param(irq_iswitch, int, 0644); 113 module_param(combfilter, int, 0444); 114 module_param(lumafilter, int, 0444); 115 module_param(automute, int, 0444); 116 module_param(chroma_agc, int, 0444); 117 module_param(agc_crush, int, 0444); 118 module_param(whitecrush_upper, int, 0444); 119 module_param(whitecrush_lower, int, 0444); 120 module_param(vcr_hack, int, 0444); 121 module_param(uv_ratio, int, 0444); 122 module_param(full_luma_range, int, 0444); 123 module_param(coring, int, 0444); 124 125 module_param_array(radio, int, NULL, 0444); 126 module_param_array(video_nr, int, NULL, 0444); 127 module_param_array(radio_nr, int, NULL, 0444); 128 module_param_array(vbi_nr, int, NULL, 0444); 129 130 MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)"); 131 MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian"); 132 MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)"); 133 MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)"); 134 MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)"); 135 MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)"); 136 MODULE_PARM_DESC(disable_ir, "disable infrared remote support"); 137 MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8"); 138 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000"); 139 MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default is 1 (yes) for compatibility with older applications"); 140 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)"); 141 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)"); 142 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)"); 143 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207"); 144 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127"); 145 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)"); 146 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler"); 147 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50"); 148 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)"); 149 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)"); 150 MODULE_PARM_DESC(video_nr, "video device numbers"); 151 MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 152 MODULE_PARM_DESC(radio_nr, "radio device numbers"); 153 154 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards"); 155 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr"); 156 MODULE_LICENSE("GPL"); 157 MODULE_VERSION(BTTV_VERSION); 158 159 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0) 160 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1) 161 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2) 162 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3) 163 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4) 164 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5) 165 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6) 166 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7) 167 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8) 168 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9) 169 170 /* ----------------------------------------------------------------------- */ 171 /* sysfs */ 172 173 static ssize_t show_card(struct device *cd, 174 struct device_attribute *attr, char *buf) 175 { 176 struct video_device *vfd = to_video_device(cd); 177 struct bttv *btv = video_get_drvdata(vfd); 178 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); 179 } 180 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL); 181 182 /* ----------------------------------------------------------------------- */ 183 /* dvb auto-load setup */ 184 #if defined(CONFIG_MODULES) && defined(MODULE) 185 static void request_module_async(struct work_struct *work) 186 { 187 request_module("dvb-bt8xx"); 188 } 189 190 static void request_modules(struct bttv *dev) 191 { 192 INIT_WORK(&dev->request_module_wk, request_module_async); 193 schedule_work(&dev->request_module_wk); 194 } 195 196 static void flush_request_modules(struct bttv *dev) 197 { 198 flush_work(&dev->request_module_wk); 199 } 200 #else 201 #define request_modules(dev) 202 #define flush_request_modules(dev) do {} while(0) 203 #endif /* CONFIG_MODULES */ 204 205 206 /* ----------------------------------------------------------------------- */ 207 /* static data */ 208 209 /* special timing tables from conexant... */ 210 static u8 SRAM_Table[][60] = 211 { 212 /* PAL digital input over GPIO[7:0] */ 213 { 214 45, // 45 bytes following 215 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16, 216 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00, 217 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00, 218 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37, 219 0x37,0x00,0xAF,0x21,0x00 220 }, 221 /* NTSC digital input over GPIO[7:0] */ 222 { 223 51, // 51 bytes following 224 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06, 225 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00, 226 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07, 227 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6, 228 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21, 229 0x00, 230 }, 231 // TGB_NTSC392 // quartzsight 232 // This table has been modified to be used for Fusion Rev D 233 { 234 0x2A, // size of table = 42 235 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24, 236 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10, 237 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00, 238 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3, 239 0x20, 0x00 240 } 241 }; 242 243 /* minhdelayx1 first video pixel we can capture on a line and 244 hdelayx1 start of active video, both relative to rising edge of 245 /HRESET pulse (0H) in 1 / fCLKx1. 246 swidth width of active video and 247 totalwidth total line width, both in 1 / fCLKx1. 248 sqwidth total line width in square pixels. 249 vdelay start of active video in 2 * field lines relative to 250 trailing edge of /VRESET pulse (VDELAY register). 251 sheight height of active video in 2 * field lines. 252 extraheight Added to sheight for cropcap.bounds.height only 253 videostart0 ITU-R frame line number of the line corresponding 254 to vdelay in the first field. */ 255 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \ 256 vdelay, sheight, extraheight, videostart0) \ 257 .cropcap.bounds.left = minhdelayx1, \ 258 /* * 2 because vertically we count field lines times two, */ \ 259 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \ 260 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \ 261 /* 4 is a safety margin at the end of the line. */ \ 262 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \ 263 .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \ 264 MIN_VDELAY, \ 265 .cropcap.defrect.left = hdelayx1, \ 266 .cropcap.defrect.top = (videostart0) * 2, \ 267 .cropcap.defrect.width = swidth, \ 268 .cropcap.defrect.height = sheight, \ 269 .cropcap.pixelaspect.numerator = totalwidth, \ 270 .cropcap.pixelaspect.denominator = sqwidth, 271 272 const struct bttv_tvnorm bttv_tvnorms[] = { 273 /* PAL-BDGHI */ 274 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */ 275 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */ 276 { 277 .v4l2_id = V4L2_STD_PAL, 278 .name = "PAL", 279 .Fsc = 35468950, 280 .swidth = 924, 281 .sheight = 576, 282 .totalwidth = 1135, 283 .adelay = 0x7f, 284 .bdelay = 0x72, 285 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), 286 .scaledtwidth = 1135, 287 .hdelayx1 = 186, 288 .hactivex1 = 924, 289 .vdelay = 0x20, 290 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */ 291 .sram = 0, 292 /* ITU-R frame line number of the first VBI line 293 we can capture, of the first and second field. 294 The last line is determined by cropcap.bounds. */ 295 .vbistart = { 7, 320 }, 296 CROPCAP(/* minhdelayx1 */ 68, 297 /* hdelayx1 */ 186, 298 /* Should be (768 * 1135 + 944 / 2) / 944. 299 cropcap.defrect is used for image width 300 checks, so we keep the old value 924. */ 301 /* swidth */ 924, 302 /* totalwidth */ 1135, 303 /* sqwidth */ 944, 304 /* vdelay */ 0x20, 305 /* sheight */ 576, 306 /* bt878 (and bt848?) can capture another 307 line below active video. */ 308 /* extraheight */ 2, 309 /* videostart0 */ 23) 310 },{ 311 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, 312 .name = "NTSC", 313 .Fsc = 28636363, 314 .swidth = 768, 315 .sheight = 480, 316 .totalwidth = 910, 317 .adelay = 0x68, 318 .bdelay = 0x5d, 319 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0), 320 .scaledtwidth = 910, 321 .hdelayx1 = 128, 322 .hactivex1 = 910, 323 .vdelay = 0x1a, 324 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */ 325 .sram = 1, 326 .vbistart = { 10, 273 }, 327 CROPCAP(/* minhdelayx1 */ 68, 328 /* hdelayx1 */ 128, 329 /* Should be (640 * 910 + 780 / 2) / 780? */ 330 /* swidth */ 768, 331 /* totalwidth */ 910, 332 /* sqwidth */ 780, 333 /* vdelay */ 0x1a, 334 /* sheight */ 480, 335 /* extraheight */ 0, 336 /* videostart0 */ 23) 337 },{ 338 .v4l2_id = V4L2_STD_SECAM, 339 .name = "SECAM", 340 .Fsc = 35468950, 341 .swidth = 924, 342 .sheight = 576, 343 .totalwidth = 1135, 344 .adelay = 0x7f, 345 .bdelay = 0xb0, 346 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1), 347 .scaledtwidth = 1135, 348 .hdelayx1 = 186, 349 .hactivex1 = 922, 350 .vdelay = 0x20, 351 .vbipack = 255, 352 .sram = 0, /* like PAL, correct? */ 353 .vbistart = { 7, 320 }, 354 CROPCAP(/* minhdelayx1 */ 68, 355 /* hdelayx1 */ 186, 356 /* swidth */ 924, 357 /* totalwidth */ 1135, 358 /* sqwidth */ 944, 359 /* vdelay */ 0x20, 360 /* sheight */ 576, 361 /* extraheight */ 0, 362 /* videostart0 */ 23) 363 },{ 364 .v4l2_id = V4L2_STD_PAL_Nc, 365 .name = "PAL-Nc", 366 .Fsc = 28636363, 367 .swidth = 640, 368 .sheight = 576, 369 .totalwidth = 910, 370 .adelay = 0x68, 371 .bdelay = 0x5d, 372 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0), 373 .scaledtwidth = 780, 374 .hdelayx1 = 130, 375 .hactivex1 = 734, 376 .vdelay = 0x1a, 377 .vbipack = 144, 378 .sram = -1, 379 .vbistart = { 7, 320 }, 380 CROPCAP(/* minhdelayx1 */ 68, 381 /* hdelayx1 */ 130, 382 /* swidth */ (640 * 910 + 780 / 2) / 780, 383 /* totalwidth */ 910, 384 /* sqwidth */ 780, 385 /* vdelay */ 0x1a, 386 /* sheight */ 576, 387 /* extraheight */ 0, 388 /* videostart0 */ 23) 389 },{ 390 .v4l2_id = V4L2_STD_PAL_M, 391 .name = "PAL-M", 392 .Fsc = 28636363, 393 .swidth = 640, 394 .sheight = 480, 395 .totalwidth = 910, 396 .adelay = 0x68, 397 .bdelay = 0x5d, 398 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0), 399 .scaledtwidth = 780, 400 .hdelayx1 = 135, 401 .hactivex1 = 754, 402 .vdelay = 0x1a, 403 .vbipack = 144, 404 .sram = -1, 405 .vbistart = { 10, 273 }, 406 CROPCAP(/* minhdelayx1 */ 68, 407 /* hdelayx1 */ 135, 408 /* swidth */ (640 * 910 + 780 / 2) / 780, 409 /* totalwidth */ 910, 410 /* sqwidth */ 780, 411 /* vdelay */ 0x1a, 412 /* sheight */ 480, 413 /* extraheight */ 0, 414 /* videostart0 */ 23) 415 },{ 416 .v4l2_id = V4L2_STD_PAL_N, 417 .name = "PAL-N", 418 .Fsc = 35468950, 419 .swidth = 768, 420 .sheight = 576, 421 .totalwidth = 1135, 422 .adelay = 0x7f, 423 .bdelay = 0x72, 424 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1), 425 .scaledtwidth = 944, 426 .hdelayx1 = 186, 427 .hactivex1 = 922, 428 .vdelay = 0x20, 429 .vbipack = 144, 430 .sram = -1, 431 .vbistart = { 7, 320 }, 432 CROPCAP(/* minhdelayx1 */ 68, 433 /* hdelayx1 */ 186, 434 /* swidth */ (768 * 1135 + 944 / 2) / 944, 435 /* totalwidth */ 1135, 436 /* sqwidth */ 944, 437 /* vdelay */ 0x20, 438 /* sheight */ 576, 439 /* extraheight */ 0, 440 /* videostart0 */ 23) 441 },{ 442 .v4l2_id = V4L2_STD_NTSC_M_JP, 443 .name = "NTSC-JP", 444 .Fsc = 28636363, 445 .swidth = 640, 446 .sheight = 480, 447 .totalwidth = 910, 448 .adelay = 0x68, 449 .bdelay = 0x5d, 450 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0), 451 .scaledtwidth = 780, 452 .hdelayx1 = 135, 453 .hactivex1 = 754, 454 .vdelay = 0x16, 455 .vbipack = 144, 456 .sram = -1, 457 .vbistart = { 10, 273 }, 458 CROPCAP(/* minhdelayx1 */ 68, 459 /* hdelayx1 */ 135, 460 /* swidth */ (640 * 910 + 780 / 2) / 780, 461 /* totalwidth */ 910, 462 /* sqwidth */ 780, 463 /* vdelay */ 0x16, 464 /* sheight */ 480, 465 /* extraheight */ 0, 466 /* videostart0 */ 23) 467 },{ 468 /* that one hopefully works with the strange timing 469 * which video recorders produce when playing a NTSC 470 * tape on a PAL TV ... */ 471 .v4l2_id = V4L2_STD_PAL_60, 472 .name = "PAL-60", 473 .Fsc = 35468950, 474 .swidth = 924, 475 .sheight = 480, 476 .totalwidth = 1135, 477 .adelay = 0x7f, 478 .bdelay = 0x72, 479 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), 480 .scaledtwidth = 1135, 481 .hdelayx1 = 186, 482 .hactivex1 = 924, 483 .vdelay = 0x1a, 484 .vbipack = 255, 485 .vtotal = 524, 486 .sram = -1, 487 .vbistart = { 10, 273 }, 488 CROPCAP(/* minhdelayx1 */ 68, 489 /* hdelayx1 */ 186, 490 /* swidth */ 924, 491 /* totalwidth */ 1135, 492 /* sqwidth */ 944, 493 /* vdelay */ 0x1a, 494 /* sheight */ 480, 495 /* extraheight */ 0, 496 /* videostart0 */ 23) 497 } 498 }; 499 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms); 500 501 /* ----------------------------------------------------------------------- */ 502 /* bttv format list 503 packed pixel formats must come first */ 504 static const struct bttv_format formats[] = { 505 { 506 .fourcc = V4L2_PIX_FMT_GREY, 507 .btformat = BT848_COLOR_FMT_Y8, 508 .depth = 8, 509 .flags = FORMAT_FLAGS_PACKED, 510 },{ 511 .fourcc = V4L2_PIX_FMT_HI240, 512 .btformat = BT848_COLOR_FMT_RGB8, 513 .depth = 8, 514 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER, 515 },{ 516 .fourcc = V4L2_PIX_FMT_RGB555, 517 .btformat = BT848_COLOR_FMT_RGB15, 518 .depth = 16, 519 .flags = FORMAT_FLAGS_PACKED, 520 },{ 521 .fourcc = V4L2_PIX_FMT_RGB555X, 522 .btformat = BT848_COLOR_FMT_RGB15, 523 .btswap = 0x03, /* byteswap */ 524 .depth = 16, 525 .flags = FORMAT_FLAGS_PACKED, 526 },{ 527 .fourcc = V4L2_PIX_FMT_RGB565, 528 .btformat = BT848_COLOR_FMT_RGB16, 529 .depth = 16, 530 .flags = FORMAT_FLAGS_PACKED, 531 },{ 532 .fourcc = V4L2_PIX_FMT_RGB565X, 533 .btformat = BT848_COLOR_FMT_RGB16, 534 .btswap = 0x03, /* byteswap */ 535 .depth = 16, 536 .flags = FORMAT_FLAGS_PACKED, 537 },{ 538 .fourcc = V4L2_PIX_FMT_BGR24, 539 .btformat = BT848_COLOR_FMT_RGB24, 540 .depth = 24, 541 .flags = FORMAT_FLAGS_PACKED, 542 },{ 543 .fourcc = V4L2_PIX_FMT_BGR32, 544 .btformat = BT848_COLOR_FMT_RGB32, 545 .depth = 32, 546 .flags = FORMAT_FLAGS_PACKED, 547 },{ 548 .fourcc = V4L2_PIX_FMT_RGB32, 549 .btformat = BT848_COLOR_FMT_RGB32, 550 .btswap = 0x0f, /* byte+word swap */ 551 .depth = 32, 552 .flags = FORMAT_FLAGS_PACKED, 553 },{ 554 .fourcc = V4L2_PIX_FMT_YUYV, 555 .btformat = BT848_COLOR_FMT_YUY2, 556 .depth = 16, 557 .flags = FORMAT_FLAGS_PACKED, 558 },{ 559 .fourcc = V4L2_PIX_FMT_UYVY, 560 .btformat = BT848_COLOR_FMT_YUY2, 561 .btswap = 0x03, /* byteswap */ 562 .depth = 16, 563 .flags = FORMAT_FLAGS_PACKED, 564 },{ 565 .fourcc = V4L2_PIX_FMT_YUV422P, 566 .btformat = BT848_COLOR_FMT_YCrCb422, 567 .depth = 16, 568 .flags = FORMAT_FLAGS_PLANAR, 569 .hshift = 1, 570 .vshift = 0, 571 },{ 572 .fourcc = V4L2_PIX_FMT_YUV420, 573 .btformat = BT848_COLOR_FMT_YCrCb422, 574 .depth = 12, 575 .flags = FORMAT_FLAGS_PLANAR, 576 .hshift = 1, 577 .vshift = 1, 578 },{ 579 .fourcc = V4L2_PIX_FMT_YVU420, 580 .btformat = BT848_COLOR_FMT_YCrCb422, 581 .depth = 12, 582 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, 583 .hshift = 1, 584 .vshift = 1, 585 },{ 586 .fourcc = V4L2_PIX_FMT_YUV411P, 587 .btformat = BT848_COLOR_FMT_YCrCb411, 588 .depth = 12, 589 .flags = FORMAT_FLAGS_PLANAR, 590 .hshift = 2, 591 .vshift = 0, 592 },{ 593 .fourcc = V4L2_PIX_FMT_YUV410, 594 .btformat = BT848_COLOR_FMT_YCrCb411, 595 .depth = 9, 596 .flags = FORMAT_FLAGS_PLANAR, 597 .hshift = 2, 598 .vshift = 2, 599 },{ 600 .fourcc = V4L2_PIX_FMT_YVU410, 601 .btformat = BT848_COLOR_FMT_YCrCb411, 602 .depth = 9, 603 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, 604 .hshift = 2, 605 .vshift = 2, 606 },{ 607 .fourcc = -1, 608 .btformat = BT848_COLOR_FMT_RAW, 609 .depth = 8, 610 .flags = FORMAT_FLAGS_RAW, 611 } 612 }; 613 static const unsigned int FORMATS = ARRAY_SIZE(formats); 614 615 /* ----------------------------------------------------------------------- */ 616 /* resource management */ 617 618 /* 619 RESOURCE_ allocated by freed by 620 621 VIDEO_READ bttv_read 1) bttv_read 2) 622 623 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF 624 VIDIOC_QBUF 1) bttv_release 625 VIDIOCMCAPTURE 1) 626 627 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off 628 VIDIOC_OVERLAY on VIDIOC_OVERLAY off 629 3) bttv_release 630 631 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF 632 VIDIOC_QBUF 1) bttv_release 633 bttv_read, bttv_poll 1) 4) 634 635 1) The resource must be allocated when we enter buffer prepare functions 636 and remain allocated while buffers are in the DMA queue. 637 2) This is a single frame read. 638 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when 639 RESOURCE_OVERLAY is allocated. 640 4) This is a continuous read, implies VIDIOC_STREAMON. 641 642 Note this driver permits video input and standard changes regardless if 643 resources are allocated. 644 */ 645 646 #define VBI_RESOURCES (RESOURCE_VBI) 647 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \ 648 RESOURCE_VIDEO_STREAM | \ 649 RESOURCE_OVERLAY) 650 651 static 652 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit) 653 { 654 int xbits; /* mutual exclusive resources */ 655 656 if (fh->resources & bit) 657 /* have it already allocated */ 658 return 1; 659 660 xbits = bit; 661 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM)) 662 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM; 663 664 /* is it free? */ 665 if (btv->resources & xbits) { 666 /* no, someone else uses it */ 667 goto fail; 668 } 669 670 if ((bit & VIDEO_RESOURCES) 671 && 0 == (btv->resources & VIDEO_RESOURCES)) { 672 /* Do crop - use current, don't - use default parameters. */ 673 __s32 top = btv->crop[!!fh->do_crop].rect.top; 674 675 if (btv->vbi_end > top) 676 goto fail; 677 678 /* We cannot capture the same line as video and VBI data. 679 Claim scan lines crop[].rect.top to bottom. */ 680 btv->crop_start = top; 681 } else if (bit & VBI_RESOURCES) { 682 __s32 end = fh->vbi_fmt.end; 683 684 if (end > btv->crop_start) 685 goto fail; 686 687 /* Claim scan lines above fh->vbi_fmt.end. */ 688 btv->vbi_end = end; 689 } 690 691 /* it's free, grab it */ 692 fh->resources |= bit; 693 btv->resources |= bit; 694 return 1; 695 696 fail: 697 return 0; 698 } 699 700 static 701 int check_btres(struct bttv_fh *fh, int bit) 702 { 703 return (fh->resources & bit); 704 } 705 706 static 707 int locked_btres(struct bttv *btv, int bit) 708 { 709 return (btv->resources & bit); 710 } 711 712 /* Call with btv->lock down. */ 713 static void 714 disclaim_vbi_lines(struct bttv *btv) 715 { 716 btv->vbi_end = 0; 717 } 718 719 /* Call with btv->lock down. */ 720 static void 721 disclaim_video_lines(struct bttv *btv) 722 { 723 const struct bttv_tvnorm *tvnorm; 724 u8 crop; 725 726 tvnorm = &bttv_tvnorms[btv->tvnorm]; 727 btv->crop_start = tvnorm->cropcap.bounds.top 728 + tvnorm->cropcap.bounds.height; 729 730 /* VBI capturing ends at VDELAY, start of video capturing, no 731 matter how many lines the VBI RISC program expects. When video 732 capturing is off, it shall no longer "preempt" VBI capturing, 733 so we set VDELAY to maximum. */ 734 crop = btread(BT848_E_CROP) | 0xc0; 735 btwrite(crop, BT848_E_CROP); 736 btwrite(0xfe, BT848_E_VDELAY_LO); 737 btwrite(crop, BT848_O_CROP); 738 btwrite(0xfe, BT848_O_VDELAY_LO); 739 } 740 741 static 742 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits) 743 { 744 if ((fh->resources & bits) != bits) { 745 /* trying to free resources not allocated by us ... */ 746 pr_err("BUG! (btres)\n"); 747 } 748 fh->resources &= ~bits; 749 btv->resources &= ~bits; 750 751 bits = btv->resources; 752 753 if (0 == (bits & VIDEO_RESOURCES)) 754 disclaim_video_lines(btv); 755 756 if (0 == (bits & VBI_RESOURCES)) 757 disclaim_vbi_lines(btv); 758 } 759 760 /* ----------------------------------------------------------------------- */ 761 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */ 762 763 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C 764 PLL_X = Reference pre-divider (0=1, 1=2) 765 PLL_C = Post divider (0=6, 1=4) 766 PLL_I = Integer input 767 PLL_F = Fractional input 768 769 F_input = 28.636363 MHz: 770 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0 771 */ 772 773 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout) 774 { 775 unsigned char fl, fh, fi; 776 777 /* prevent overflows */ 778 fin/=4; 779 fout/=4; 780 781 fout*=12; 782 fi=fout/fin; 783 784 fout=(fout%fin)*256; 785 fh=fout/fin; 786 787 fout=(fout%fin)*256; 788 fl=fout/fin; 789 790 btwrite(fl, BT848_PLL_F_LO); 791 btwrite(fh, BT848_PLL_F_HI); 792 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI); 793 } 794 795 static void set_pll(struct bttv *btv) 796 { 797 int i; 798 799 if (!btv->pll.pll_crystal) 800 return; 801 802 if (btv->pll.pll_ofreq == btv->pll.pll_current) { 803 dprintk("%d: PLL: no change required\n", btv->c.nr); 804 return; 805 } 806 807 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) { 808 /* no PLL needed */ 809 if (btv->pll.pll_current == 0) 810 return; 811 if (bttv_verbose) 812 pr_info("%d: PLL can sleep, using XTAL (%d)\n", 813 btv->c.nr, btv->pll.pll_ifreq); 814 btwrite(0x00,BT848_TGCTRL); 815 btwrite(0x00,BT848_PLL_XCI); 816 btv->pll.pll_current = 0; 817 return; 818 } 819 820 if (bttv_verbose) 821 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n", 822 btv->c.nr, 823 btv->pll.pll_ifreq, btv->pll.pll_ofreq); 824 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq); 825 826 for (i=0; i<10; i++) { 827 /* Let other people run while the PLL stabilizes */ 828 msleep(10); 829 830 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) { 831 btwrite(0,BT848_DSTATUS); 832 } else { 833 btwrite(0x08,BT848_TGCTRL); 834 btv->pll.pll_current = btv->pll.pll_ofreq; 835 if (bttv_verbose) 836 pr_info("PLL set ok\n"); 837 return; 838 } 839 } 840 btv->pll.pll_current = -1; 841 if (bttv_verbose) 842 pr_info("Setting PLL failed\n"); 843 return; 844 } 845 846 /* used to switch between the bt848's analog/digital video capture modes */ 847 static void bt848A_set_timing(struct bttv *btv) 848 { 849 int i, len; 850 int table_idx = bttv_tvnorms[btv->tvnorm].sram; 851 int fsc = bttv_tvnorms[btv->tvnorm].Fsc; 852 853 if (btv->input == btv->dig) { 854 dprintk("%d: load digital timing table (table_idx=%d)\n", 855 btv->c.nr,table_idx); 856 857 /* timing change...reset timing generator address */ 858 btwrite(0x00, BT848_TGCTRL); 859 btwrite(0x02, BT848_TGCTRL); 860 btwrite(0x00, BT848_TGCTRL); 861 862 len=SRAM_Table[table_idx][0]; 863 for(i = 1; i <= len; i++) 864 btwrite(SRAM_Table[table_idx][i],BT848_TGLB); 865 btv->pll.pll_ofreq = 27000000; 866 867 set_pll(btv); 868 btwrite(0x11, BT848_TGCTRL); 869 btwrite(0x41, BT848_DVSIF); 870 } else { 871 btv->pll.pll_ofreq = fsc; 872 set_pll(btv); 873 btwrite(0x0, BT848_DVSIF); 874 } 875 } 876 877 /* ----------------------------------------------------------------------- */ 878 879 static void bt848_bright(struct bttv *btv, int bright) 880 { 881 int value; 882 883 // printk("set bright: %d\n", bright); // DEBUG 884 btv->bright = bright; 885 886 /* We want -128 to 127 we get 0-65535 */ 887 value = (bright >> 8) - 128; 888 btwrite(value & 0xff, BT848_BRIGHT); 889 } 890 891 static void bt848_hue(struct bttv *btv, int hue) 892 { 893 int value; 894 895 btv->hue = hue; 896 897 /* -128 to 127 */ 898 value = (hue >> 8) - 128; 899 btwrite(value & 0xff, BT848_HUE); 900 } 901 902 static void bt848_contrast(struct bttv *btv, int cont) 903 { 904 int value,hibit; 905 906 btv->contrast = cont; 907 908 /* 0-511 */ 909 value = (cont >> 7); 910 hibit = (value >> 6) & 4; 911 btwrite(value & 0xff, BT848_CONTRAST_LO); 912 btaor(hibit, ~4, BT848_E_CONTROL); 913 btaor(hibit, ~4, BT848_O_CONTROL); 914 } 915 916 static void bt848_sat(struct bttv *btv, int color) 917 { 918 int val_u,val_v,hibits; 919 920 btv->saturation = color; 921 922 /* 0-511 for the color */ 923 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7; 924 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254; 925 hibits = (val_u >> 7) & 2; 926 hibits |= (val_v >> 8) & 1; 927 btwrite(val_u & 0xff, BT848_SAT_U_LO); 928 btwrite(val_v & 0xff, BT848_SAT_V_LO); 929 btaor(hibits, ~3, BT848_E_CONTROL); 930 btaor(hibits, ~3, BT848_O_CONTROL); 931 } 932 933 /* ----------------------------------------------------------------------- */ 934 935 static int 936 video_mux(struct bttv *btv, unsigned int input) 937 { 938 int mux,mask2; 939 940 if (input >= bttv_tvcards[btv->c.type].video_inputs) 941 return -EINVAL; 942 943 /* needed by RemoteVideo MX */ 944 mask2 = bttv_tvcards[btv->c.type].gpiomask2; 945 if (mask2) 946 gpio_inout(mask2,mask2); 947 948 if (input == btv->svhs) { 949 btor(BT848_CONTROL_COMP, BT848_E_CONTROL); 950 btor(BT848_CONTROL_COMP, BT848_O_CONTROL); 951 } else { 952 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL); 953 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL); 954 } 955 mux = bttv_muxsel(btv, input); 956 btaor(mux<<5, ~(3<<5), BT848_IFORM); 957 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux); 958 959 /* card specific hook */ 960 if(bttv_tvcards[btv->c.type].muxsel_hook) 961 bttv_tvcards[btv->c.type].muxsel_hook (btv, input); 962 return 0; 963 } 964 965 static char *audio_modes[] = { 966 "audio: tuner", "audio: radio", "audio: extern", 967 "audio: intern", "audio: mute" 968 }; 969 970 static void 971 audio_mux_gpio(struct bttv *btv, int input, int mute) 972 { 973 int gpio_val, signal, mute_gpio; 974 975 gpio_inout(bttv_tvcards[btv->c.type].gpiomask, 976 bttv_tvcards[btv->c.type].gpiomask); 977 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC; 978 979 /* automute */ 980 mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users) 981 && !btv->has_radio_tuner); 982 983 if (mute_gpio) 984 gpio_val = bttv_tvcards[btv->c.type].gpiomute; 985 else 986 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input]; 987 988 switch (btv->c.type) { 989 case BTTV_BOARD_VOODOOTV_FM: 990 case BTTV_BOARD_VOODOOTV_200: 991 gpio_val = bttv_tda9880_setnorm(btv, gpio_val); 992 break; 993 994 default: 995 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val); 996 } 997 998 if (bttv_gpio) 999 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]); 1000 } 1001 1002 static int 1003 audio_mute(struct bttv *btv, int mute) 1004 { 1005 struct v4l2_ctrl *ctrl; 1006 1007 audio_mux_gpio(btv, btv->audio_input, mute); 1008 1009 if (btv->sd_msp34xx) { 1010 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1011 if (ctrl) 1012 v4l2_ctrl_s_ctrl(ctrl, mute); 1013 } 1014 if (btv->sd_tvaudio) { 1015 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1016 if (ctrl) 1017 v4l2_ctrl_s_ctrl(ctrl, mute); 1018 } 1019 if (btv->sd_tda7432) { 1020 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE); 1021 if (ctrl) 1022 v4l2_ctrl_s_ctrl(ctrl, mute); 1023 } 1024 return 0; 1025 } 1026 1027 static int 1028 audio_input(struct bttv *btv, int input) 1029 { 1030 audio_mux_gpio(btv, input, btv->mute); 1031 1032 if (btv->sd_msp34xx) { 1033 u32 in; 1034 1035 /* Note: the inputs tuner/radio/extern/intern are translated 1036 to msp routings. This assumes common behavior for all msp3400 1037 based TV cards. When this assumption fails, then the 1038 specific MSP routing must be added to the card table. 1039 For now this is sufficient. */ 1040 switch (input) { 1041 case TVAUDIO_INPUT_RADIO: 1042 /* Some boards need the msp do to the radio demod */ 1043 if (btv->radio_uses_msp_demodulator) { 1044 in = MSP_INPUT_DEFAULT; 1045 break; 1046 } 1047 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, 1048 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1049 break; 1050 case TVAUDIO_INPUT_EXTERN: 1051 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1, 1052 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1053 break; 1054 case TVAUDIO_INPUT_INTERN: 1055 /* Yes, this is the same input as for RADIO. I doubt 1056 if this is ever used. The only board with an INTERN 1057 input is the BTTV_BOARD_AVERMEDIA98. I wonder how 1058 that was tested. My guess is that the whole INTERN 1059 input does not work. */ 1060 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, 1061 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); 1062 break; 1063 case TVAUDIO_INPUT_TUNER: 1064 default: 1065 /* This is the only card that uses TUNER2, and afaik, 1066 is the only difference between the VOODOOTV_FM 1067 and VOODOOTV_200 */ 1068 if (btv->c.type == BTTV_BOARD_VOODOOTV_200) 1069 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \ 1070 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER); 1071 else 1072 in = MSP_INPUT_DEFAULT; 1073 break; 1074 } 1075 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing, 1076 in, MSP_OUTPUT_DEFAULT, 0); 1077 } 1078 if (btv->sd_tvaudio) { 1079 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing, 1080 input, 0, 0); 1081 } 1082 return 0; 1083 } 1084 1085 static void 1086 bttv_crop_calc_limits(struct bttv_crop *c) 1087 { 1088 /* Scale factor min. 1:1, max. 16:1. Min. image size 1089 48 x 32. Scaled width must be a multiple of 4. */ 1090 1091 if (1) { 1092 /* For bug compatibility with VIDIOCGCAP and image 1093 size checks in earlier driver versions. */ 1094 c->min_scaled_width = 48; 1095 c->min_scaled_height = 32; 1096 } else { 1097 c->min_scaled_width = 1098 (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3; 1099 c->min_scaled_height = 1100 max_t(unsigned int, 32, c->rect.height >> 4); 1101 } 1102 1103 c->max_scaled_width = c->rect.width & ~3; 1104 c->max_scaled_height = c->rect.height; 1105 } 1106 1107 static void 1108 bttv_crop_reset(struct bttv_crop *c, unsigned int norm) 1109 { 1110 c->rect = bttv_tvnorms[norm].cropcap.defrect; 1111 bttv_crop_calc_limits(c); 1112 } 1113 1114 /* Call with btv->lock down. */ 1115 static int 1116 set_tvnorm(struct bttv *btv, unsigned int norm) 1117 { 1118 const struct bttv_tvnorm *tvnorm; 1119 v4l2_std_id id; 1120 1121 BUG_ON(norm >= BTTV_TVNORMS); 1122 BUG_ON(btv->tvnorm >= BTTV_TVNORMS); 1123 1124 tvnorm = &bttv_tvnorms[norm]; 1125 1126 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap, 1127 sizeof (tvnorm->cropcap))) { 1128 bttv_crop_reset(&btv->crop[0], norm); 1129 btv->crop[1] = btv->crop[0]; /* current = default */ 1130 1131 if (0 == (btv->resources & VIDEO_RESOURCES)) { 1132 btv->crop_start = tvnorm->cropcap.bounds.top 1133 + tvnorm->cropcap.bounds.height; 1134 } 1135 } 1136 1137 btv->tvnorm = norm; 1138 1139 btwrite(tvnorm->adelay, BT848_ADELAY); 1140 btwrite(tvnorm->bdelay, BT848_BDELAY); 1141 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH), 1142 BT848_IFORM); 1143 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE); 1144 btwrite(1, BT848_VBI_PACK_DEL); 1145 bt848A_set_timing(btv); 1146 1147 switch (btv->c.type) { 1148 case BTTV_BOARD_VOODOOTV_FM: 1149 case BTTV_BOARD_VOODOOTV_200: 1150 bttv_tda9880_setnorm(btv, gpio_read()); 1151 break; 1152 } 1153 id = tvnorm->v4l2_id; 1154 bttv_call_all(btv, video, s_std, id); 1155 1156 return 0; 1157 } 1158 1159 /* Call with btv->lock down. */ 1160 static void 1161 set_input(struct bttv *btv, unsigned int input, unsigned int norm) 1162 { 1163 unsigned long flags; 1164 1165 btv->input = input; 1166 if (irq_iswitch) { 1167 spin_lock_irqsave(&btv->s_lock,flags); 1168 if (btv->curr.frame_irq) { 1169 /* active capture -> delayed input switch */ 1170 btv->new_input = input; 1171 } else { 1172 video_mux(btv,input); 1173 } 1174 spin_unlock_irqrestore(&btv->s_lock,flags); 1175 } else { 1176 video_mux(btv,input); 1177 } 1178 btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ? 1179 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN; 1180 audio_input(btv, btv->audio_input); 1181 set_tvnorm(btv, norm); 1182 } 1183 1184 static void init_irqreg(struct bttv *btv) 1185 { 1186 /* clear status */ 1187 btwrite(0xfffffUL, BT848_INT_STAT); 1188 1189 if (bttv_tvcards[btv->c.type].no_video) { 1190 /* i2c only */ 1191 btwrite(BT848_INT_I2CDONE, 1192 BT848_INT_MASK); 1193 } else { 1194 /* full video */ 1195 btwrite((btv->triton1) | 1196 (btv->gpioirq ? BT848_INT_GPINT : 0) | 1197 BT848_INT_SCERR | 1198 (fdsr ? BT848_INT_FDSR : 0) | 1199 BT848_INT_RISCI | BT848_INT_OCERR | 1200 BT848_INT_FMTCHG|BT848_INT_HLOCK| 1201 BT848_INT_I2CDONE, 1202 BT848_INT_MASK); 1203 } 1204 } 1205 1206 static void init_bt848(struct bttv *btv) 1207 { 1208 if (bttv_tvcards[btv->c.type].no_video) { 1209 /* very basic init only */ 1210 init_irqreg(btv); 1211 return; 1212 } 1213 1214 btwrite(0x00, BT848_CAP_CTL); 1215 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL); 1216 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM); 1217 1218 /* set planar and packed mode trigger points and */ 1219 /* set rising edge of inverted GPINTR pin as irq trigger */ 1220 btwrite(BT848_GPIO_DMA_CTL_PKTP_32| 1221 BT848_GPIO_DMA_CTL_PLTP1_16| 1222 BT848_GPIO_DMA_CTL_PLTP23_16| 1223 BT848_GPIO_DMA_CTL_GPINTC| 1224 BT848_GPIO_DMA_CTL_GPINTI, 1225 BT848_GPIO_DMA_CTL); 1226 1227 btwrite(0x20, BT848_E_VSCALE_HI); 1228 btwrite(0x20, BT848_O_VSCALE_HI); 1229 1230 v4l2_ctrl_handler_setup(&btv->ctrl_handler); 1231 1232 /* interrupt */ 1233 init_irqreg(btv); 1234 } 1235 1236 static void bttv_reinit_bt848(struct bttv *btv) 1237 { 1238 unsigned long flags; 1239 1240 if (bttv_verbose) 1241 pr_info("%d: reset, reinitialize\n", btv->c.nr); 1242 spin_lock_irqsave(&btv->s_lock,flags); 1243 btv->errors=0; 1244 bttv_set_dma(btv,0); 1245 spin_unlock_irqrestore(&btv->s_lock,flags); 1246 1247 init_bt848(btv); 1248 btv->pll.pll_current = -1; 1249 set_input(btv, btv->input, btv->tvnorm); 1250 } 1251 1252 static int bttv_s_ctrl(struct v4l2_ctrl *c) 1253 { 1254 struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler); 1255 int val; 1256 1257 switch (c->id) { 1258 case V4L2_CID_BRIGHTNESS: 1259 bt848_bright(btv, c->val); 1260 break; 1261 case V4L2_CID_HUE: 1262 bt848_hue(btv, c->val); 1263 break; 1264 case V4L2_CID_CONTRAST: 1265 bt848_contrast(btv, c->val); 1266 break; 1267 case V4L2_CID_SATURATION: 1268 bt848_sat(btv, c->val); 1269 break; 1270 case V4L2_CID_COLOR_KILLER: 1271 if (c->val) { 1272 btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP); 1273 btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP); 1274 } else { 1275 btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP); 1276 btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP); 1277 } 1278 break; 1279 case V4L2_CID_AUDIO_MUTE: 1280 audio_mute(btv, c->val); 1281 btv->mute = c->val; 1282 break; 1283 case V4L2_CID_AUDIO_VOLUME: 1284 btv->volume_gpio(btv, c->val); 1285 break; 1286 1287 case V4L2_CID_CHROMA_AGC: 1288 val = c->val ? BT848_SCLOOP_CAGC : 0; 1289 btwrite(val, BT848_E_SCLOOP); 1290 btwrite(val, BT848_O_SCLOOP); 1291 break; 1292 case V4L2_CID_PRIVATE_COMBFILTER: 1293 btv->opt_combfilter = c->val; 1294 break; 1295 case V4L2_CID_PRIVATE_LUMAFILTER: 1296 if (c->val) { 1297 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL); 1298 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL); 1299 } else { 1300 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL); 1301 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL); 1302 } 1303 break; 1304 case V4L2_CID_PRIVATE_AUTOMUTE: 1305 btv->opt_automute = c->val; 1306 break; 1307 case V4L2_CID_PRIVATE_AGC_CRUSH: 1308 btwrite(BT848_ADC_RESERVED | 1309 (c->val ? BT848_ADC_CRUSH : 0), 1310 BT848_ADC); 1311 break; 1312 case V4L2_CID_PRIVATE_VCR_HACK: 1313 btv->opt_vcr_hack = c->val; 1314 break; 1315 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER: 1316 btwrite(c->val, BT848_WC_UP); 1317 break; 1318 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER: 1319 btwrite(c->val, BT848_WC_DOWN); 1320 break; 1321 case V4L2_CID_PRIVATE_UV_RATIO: 1322 btv->opt_uv_ratio = c->val; 1323 bt848_sat(btv, btv->saturation); 1324 break; 1325 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE: 1326 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM); 1327 break; 1328 case V4L2_CID_PRIVATE_CORING: 1329 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM); 1330 break; 1331 default: 1332 return -EINVAL; 1333 } 1334 return 0; 1335 } 1336 1337 /* ----------------------------------------------------------------------- */ 1338 1339 static const struct v4l2_ctrl_ops bttv_ctrl_ops = { 1340 .s_ctrl = bttv_s_ctrl, 1341 }; 1342 1343 static struct v4l2_ctrl_config bttv_ctrl_combfilter = { 1344 .ops = &bttv_ctrl_ops, 1345 .id = V4L2_CID_PRIVATE_COMBFILTER, 1346 .name = "Comb Filter", 1347 .type = V4L2_CTRL_TYPE_BOOLEAN, 1348 .min = 0, 1349 .max = 1, 1350 .step = 1, 1351 .def = 1, 1352 }; 1353 1354 static struct v4l2_ctrl_config bttv_ctrl_automute = { 1355 .ops = &bttv_ctrl_ops, 1356 .id = V4L2_CID_PRIVATE_AUTOMUTE, 1357 .name = "Auto Mute", 1358 .type = V4L2_CTRL_TYPE_BOOLEAN, 1359 .min = 0, 1360 .max = 1, 1361 .step = 1, 1362 .def = 1, 1363 }; 1364 1365 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = { 1366 .ops = &bttv_ctrl_ops, 1367 .id = V4L2_CID_PRIVATE_LUMAFILTER, 1368 .name = "Luma Decimation Filter", 1369 .type = V4L2_CTRL_TYPE_BOOLEAN, 1370 .min = 0, 1371 .max = 1, 1372 .step = 1, 1373 .def = 1, 1374 }; 1375 1376 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = { 1377 .ops = &bttv_ctrl_ops, 1378 .id = V4L2_CID_PRIVATE_AGC_CRUSH, 1379 .name = "AGC Crush", 1380 .type = V4L2_CTRL_TYPE_BOOLEAN, 1381 .min = 0, 1382 .max = 1, 1383 .step = 1, 1384 .def = 1, 1385 }; 1386 1387 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = { 1388 .ops = &bttv_ctrl_ops, 1389 .id = V4L2_CID_PRIVATE_VCR_HACK, 1390 .name = "VCR Hack", 1391 .type = V4L2_CTRL_TYPE_BOOLEAN, 1392 .min = 0, 1393 .max = 1, 1394 .step = 1, 1395 .def = 1, 1396 }; 1397 1398 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = { 1399 .ops = &bttv_ctrl_ops, 1400 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER, 1401 .name = "Whitecrush Lower", 1402 .type = V4L2_CTRL_TYPE_INTEGER, 1403 .min = 0, 1404 .max = 255, 1405 .step = 1, 1406 .def = 0x7f, 1407 }; 1408 1409 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = { 1410 .ops = &bttv_ctrl_ops, 1411 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER, 1412 .name = "Whitecrush Upper", 1413 .type = V4L2_CTRL_TYPE_INTEGER, 1414 .min = 0, 1415 .max = 255, 1416 .step = 1, 1417 .def = 0xcf, 1418 }; 1419 1420 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = { 1421 .ops = &bttv_ctrl_ops, 1422 .id = V4L2_CID_PRIVATE_UV_RATIO, 1423 .name = "UV Ratio", 1424 .type = V4L2_CTRL_TYPE_INTEGER, 1425 .min = 0, 1426 .max = 100, 1427 .step = 1, 1428 .def = 50, 1429 }; 1430 1431 static struct v4l2_ctrl_config bttv_ctrl_full_luma = { 1432 .ops = &bttv_ctrl_ops, 1433 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE, 1434 .name = "Full Luma Range", 1435 .type = V4L2_CTRL_TYPE_BOOLEAN, 1436 .min = 0, 1437 .max = 1, 1438 .step = 1, 1439 }; 1440 1441 static struct v4l2_ctrl_config bttv_ctrl_coring = { 1442 .ops = &bttv_ctrl_ops, 1443 .id = V4L2_CID_PRIVATE_CORING, 1444 .name = "Coring", 1445 .type = V4L2_CTRL_TYPE_INTEGER, 1446 .min = 0, 1447 .max = 3, 1448 .step = 1, 1449 }; 1450 1451 1452 /* ----------------------------------------------------------------------- */ 1453 1454 void bttv_gpio_tracking(struct bttv *btv, char *comment) 1455 { 1456 unsigned int outbits, data; 1457 outbits = btread(BT848_GPIO_OUT_EN); 1458 data = btread(BT848_GPIO_DATA); 1459 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n", 1460 btv->c.nr, outbits, data & outbits, data & ~outbits, comment); 1461 } 1462 1463 static void bttv_field_count(struct bttv *btv) 1464 { 1465 int need_count = 0; 1466 1467 if (btv->users) 1468 need_count++; 1469 1470 if (need_count) { 1471 /* start field counter */ 1472 btor(BT848_INT_VSYNC,BT848_INT_MASK); 1473 } else { 1474 /* stop field counter */ 1475 btand(~BT848_INT_VSYNC,BT848_INT_MASK); 1476 btv->field_count = 0; 1477 } 1478 } 1479 1480 static const struct bttv_format* 1481 format_by_fourcc(int fourcc) 1482 { 1483 unsigned int i; 1484 1485 for (i = 0; i < FORMATS; i++) { 1486 if (-1 == formats[i].fourcc) 1487 continue; 1488 if (formats[i].fourcc == fourcc) 1489 return formats+i; 1490 } 1491 return NULL; 1492 } 1493 1494 /* ----------------------------------------------------------------------- */ 1495 /* misc helpers */ 1496 1497 static int 1498 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh, 1499 struct bttv_buffer *new) 1500 { 1501 struct bttv_buffer *old; 1502 unsigned long flags; 1503 1504 dprintk("switch_overlay: enter [new=%p]\n", new); 1505 if (new) 1506 new->vb.state = VIDEOBUF_DONE; 1507 spin_lock_irqsave(&btv->s_lock,flags); 1508 old = btv->screen; 1509 btv->screen = new; 1510 btv->loop_irq |= 1; 1511 bttv_set_dma(btv, 0x03); 1512 spin_unlock_irqrestore(&btv->s_lock,flags); 1513 if (NULL != old) { 1514 dprintk("switch_overlay: old=%p state is %d\n", 1515 old, old->vb.state); 1516 bttv_dma_free(&fh->cap,btv, old); 1517 kfree(old); 1518 } 1519 if (NULL == new) 1520 free_btres_lock(btv,fh,RESOURCE_OVERLAY); 1521 dprintk("switch_overlay: done\n"); 1522 return 0; 1523 } 1524 1525 /* ----------------------------------------------------------------------- */ 1526 /* video4linux (1) interface */ 1527 1528 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv, 1529 struct bttv_buffer *buf, 1530 const struct bttv_format *fmt, 1531 unsigned int width, unsigned int height, 1532 enum v4l2_field field) 1533 { 1534 struct bttv_fh *fh = q->priv_data; 1535 int redo_dma_risc = 0; 1536 struct bttv_crop c; 1537 int norm; 1538 int rc; 1539 1540 /* check settings */ 1541 if (NULL == fmt) 1542 return -EINVAL; 1543 if (fmt->btformat == BT848_COLOR_FMT_RAW) { 1544 width = RAW_BPL; 1545 height = RAW_LINES*2; 1546 if (width*height > buf->vb.bsize) 1547 return -EINVAL; 1548 buf->vb.size = buf->vb.bsize; 1549 1550 /* Make sure tvnorm and vbi_end remain consistent 1551 until we're done. */ 1552 1553 norm = btv->tvnorm; 1554 1555 /* In this mode capturing always starts at defrect.top 1556 (default VDELAY), ignoring cropping parameters. */ 1557 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) { 1558 return -EINVAL; 1559 } 1560 1561 c.rect = bttv_tvnorms[norm].cropcap.defrect; 1562 } else { 1563 norm = btv->tvnorm; 1564 c = btv->crop[!!fh->do_crop]; 1565 1566 if (width < c.min_scaled_width || 1567 width > c.max_scaled_width || 1568 height < c.min_scaled_height) 1569 return -EINVAL; 1570 1571 switch (field) { 1572 case V4L2_FIELD_TOP: 1573 case V4L2_FIELD_BOTTOM: 1574 case V4L2_FIELD_ALTERNATE: 1575 /* btv->crop counts frame lines. Max. scale 1576 factor is 16:1 for frames, 8:1 for fields. */ 1577 if (height * 2 > c.max_scaled_height) 1578 return -EINVAL; 1579 break; 1580 1581 default: 1582 if (height > c.max_scaled_height) 1583 return -EINVAL; 1584 break; 1585 } 1586 1587 buf->vb.size = (width * height * fmt->depth) >> 3; 1588 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 1589 return -EINVAL; 1590 } 1591 1592 /* alloc + fill struct bttv_buffer (if changed) */ 1593 if (buf->vb.width != width || buf->vb.height != height || 1594 buf->vb.field != field || 1595 buf->tvnorm != norm || buf->fmt != fmt || 1596 buf->crop.top != c.rect.top || 1597 buf->crop.left != c.rect.left || 1598 buf->crop.width != c.rect.width || 1599 buf->crop.height != c.rect.height) { 1600 buf->vb.width = width; 1601 buf->vb.height = height; 1602 buf->vb.field = field; 1603 buf->tvnorm = norm; 1604 buf->fmt = fmt; 1605 buf->crop = c.rect; 1606 redo_dma_risc = 1; 1607 } 1608 1609 /* alloc risc memory */ 1610 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 1611 redo_dma_risc = 1; 1612 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf))) 1613 goto fail; 1614 } 1615 1616 if (redo_dma_risc) 1617 if (0 != (rc = bttv_buffer_risc(btv,buf))) 1618 goto fail; 1619 1620 buf->vb.state = VIDEOBUF_PREPARED; 1621 return 0; 1622 1623 fail: 1624 bttv_dma_free(q,btv,buf); 1625 return rc; 1626 } 1627 1628 static int 1629 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) 1630 { 1631 struct bttv_fh *fh = q->priv_data; 1632 1633 *size = fh->fmt->depth*fh->width*fh->height >> 3; 1634 if (0 == *count) 1635 *count = gbuffers; 1636 if (*size * *count > gbuffers * gbufsize) 1637 *count = (gbuffers * gbufsize) / *size; 1638 return 0; 1639 } 1640 1641 static int 1642 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 1643 enum v4l2_field field) 1644 { 1645 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1646 struct bttv_fh *fh = q->priv_data; 1647 1648 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt, 1649 fh->width, fh->height, field); 1650 } 1651 1652 static void 1653 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) 1654 { 1655 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1656 struct bttv_fh *fh = q->priv_data; 1657 struct bttv *btv = fh->btv; 1658 1659 buf->vb.state = VIDEOBUF_QUEUED; 1660 list_add_tail(&buf->vb.queue,&btv->capture); 1661 if (!btv->curr.frame_irq) { 1662 btv->loop_irq |= 1; 1663 bttv_set_dma(btv, 0x03); 1664 } 1665 } 1666 1667 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) 1668 { 1669 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 1670 struct bttv_fh *fh = q->priv_data; 1671 1672 bttv_dma_free(q,fh->btv,buf); 1673 } 1674 1675 static const struct videobuf_queue_ops bttv_video_qops = { 1676 .buf_setup = buffer_setup, 1677 .buf_prepare = buffer_prepare, 1678 .buf_queue = buffer_queue, 1679 .buf_release = buffer_release, 1680 }; 1681 1682 static void radio_enable(struct bttv *btv) 1683 { 1684 /* Switch to the radio tuner */ 1685 if (!btv->has_radio_tuner) { 1686 btv->has_radio_tuner = 1; 1687 bttv_call_all(btv, tuner, s_radio); 1688 btv->audio_input = TVAUDIO_INPUT_RADIO; 1689 audio_input(btv, btv->audio_input); 1690 } 1691 } 1692 1693 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id) 1694 { 1695 struct bttv_fh *fh = priv; 1696 struct bttv *btv = fh->btv; 1697 unsigned int i; 1698 1699 for (i = 0; i < BTTV_TVNORMS; i++) 1700 if (id & bttv_tvnorms[i].v4l2_id) 1701 break; 1702 if (i == BTTV_TVNORMS) 1703 return -EINVAL; 1704 btv->std = id; 1705 set_tvnorm(btv, i); 1706 return 0; 1707 } 1708 1709 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id) 1710 { 1711 struct bttv_fh *fh = priv; 1712 struct bttv *btv = fh->btv; 1713 1714 *id = btv->std; 1715 return 0; 1716 } 1717 1718 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id) 1719 { 1720 struct bttv_fh *fh = f; 1721 struct bttv *btv = fh->btv; 1722 1723 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML) 1724 *id &= V4L2_STD_625_50; 1725 else 1726 *id &= V4L2_STD_525_60; 1727 return 0; 1728 } 1729 1730 static int bttv_enum_input(struct file *file, void *priv, 1731 struct v4l2_input *i) 1732 { 1733 struct bttv_fh *fh = priv; 1734 struct bttv *btv = fh->btv; 1735 1736 if (i->index >= bttv_tvcards[btv->c.type].video_inputs) 1737 return -EINVAL; 1738 1739 i->type = V4L2_INPUT_TYPE_CAMERA; 1740 i->audioset = 0; 1741 1742 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) { 1743 sprintf(i->name, "Television"); 1744 i->type = V4L2_INPUT_TYPE_TUNER; 1745 i->tuner = 0; 1746 } else if (i->index == btv->svhs) { 1747 sprintf(i->name, "S-Video"); 1748 } else { 1749 sprintf(i->name, "Composite%d", i->index); 1750 } 1751 1752 if (i->index == btv->input) { 1753 __u32 dstatus = btread(BT848_DSTATUS); 1754 if (0 == (dstatus & BT848_DSTATUS_PRES)) 1755 i->status |= V4L2_IN_ST_NO_SIGNAL; 1756 if (0 == (dstatus & BT848_DSTATUS_HLOC)) 1757 i->status |= V4L2_IN_ST_NO_H_LOCK; 1758 } 1759 1760 i->std = BTTV_NORMS; 1761 return 0; 1762 } 1763 1764 static int bttv_g_input(struct file *file, void *priv, unsigned int *i) 1765 { 1766 struct bttv_fh *fh = priv; 1767 struct bttv *btv = fh->btv; 1768 1769 *i = btv->input; 1770 1771 return 0; 1772 } 1773 1774 static int bttv_s_input(struct file *file, void *priv, unsigned int i) 1775 { 1776 struct bttv_fh *fh = priv; 1777 struct bttv *btv = fh->btv; 1778 1779 if (i >= bttv_tvcards[btv->c.type].video_inputs) 1780 return -EINVAL; 1781 1782 set_input(btv, i, btv->tvnorm); 1783 return 0; 1784 } 1785 1786 static int bttv_s_tuner(struct file *file, void *priv, 1787 const struct v4l2_tuner *t) 1788 { 1789 struct bttv_fh *fh = priv; 1790 struct bttv *btv = fh->btv; 1791 1792 if (t->index) 1793 return -EINVAL; 1794 1795 bttv_call_all(btv, tuner, s_tuner, t); 1796 1797 if (btv->audio_mode_gpio) { 1798 struct v4l2_tuner copy = *t; 1799 1800 btv->audio_mode_gpio(btv, ©, 1); 1801 } 1802 return 0; 1803 } 1804 1805 static int bttv_g_frequency(struct file *file, void *priv, 1806 struct v4l2_frequency *f) 1807 { 1808 struct bttv_fh *fh = priv; 1809 struct bttv *btv = fh->btv; 1810 1811 if (f->tuner) 1812 return -EINVAL; 1813 1814 if (f->type == V4L2_TUNER_RADIO) 1815 radio_enable(btv); 1816 f->frequency = f->type == V4L2_TUNER_RADIO ? 1817 btv->radio_freq : btv->tv_freq; 1818 1819 return 0; 1820 } 1821 1822 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f) 1823 { 1824 struct v4l2_frequency new_freq = *f; 1825 1826 bttv_call_all(btv, tuner, s_frequency, f); 1827 /* s_frequency may clamp the frequency, so get the actual 1828 frequency before assigning radio/tv_freq. */ 1829 bttv_call_all(btv, tuner, g_frequency, &new_freq); 1830 if (new_freq.type == V4L2_TUNER_RADIO) { 1831 radio_enable(btv); 1832 btv->radio_freq = new_freq.frequency; 1833 if (btv->has_tea575x) { 1834 btv->tea.freq = btv->radio_freq; 1835 snd_tea575x_set_freq(&btv->tea); 1836 } 1837 } else { 1838 btv->tv_freq = new_freq.frequency; 1839 } 1840 } 1841 1842 static int bttv_s_frequency(struct file *file, void *priv, 1843 const struct v4l2_frequency *f) 1844 { 1845 struct bttv_fh *fh = priv; 1846 struct bttv *btv = fh->btv; 1847 1848 if (f->tuner) 1849 return -EINVAL; 1850 1851 bttv_set_frequency(btv, f); 1852 return 0; 1853 } 1854 1855 static int bttv_log_status(struct file *file, void *f) 1856 { 1857 struct video_device *vdev = video_devdata(file); 1858 struct bttv_fh *fh = f; 1859 struct bttv *btv = fh->btv; 1860 1861 v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name); 1862 bttv_call_all(btv, core, log_status); 1863 return 0; 1864 } 1865 1866 #ifdef CONFIG_VIDEO_ADV_DEBUG 1867 static int bttv_g_register(struct file *file, void *f, 1868 struct v4l2_dbg_register *reg) 1869 { 1870 struct bttv_fh *fh = f; 1871 struct bttv *btv = fh->btv; 1872 1873 /* bt848 has a 12-bit register space */ 1874 reg->reg &= 0xfff; 1875 reg->val = btread(reg->reg); 1876 reg->size = 1; 1877 1878 return 0; 1879 } 1880 1881 static int bttv_s_register(struct file *file, void *f, 1882 const struct v4l2_dbg_register *reg) 1883 { 1884 struct bttv_fh *fh = f; 1885 struct bttv *btv = fh->btv; 1886 1887 /* bt848 has a 12-bit register space */ 1888 btwrite(reg->val, reg->reg & 0xfff); 1889 1890 return 0; 1891 } 1892 #endif 1893 1894 /* Given cropping boundaries b and the scaled width and height of a 1895 single field or frame, which must not exceed hardware limits, this 1896 function adjusts the cropping parameters c. */ 1897 static void 1898 bttv_crop_adjust (struct bttv_crop * c, 1899 const struct v4l2_rect * b, 1900 __s32 width, 1901 __s32 height, 1902 enum v4l2_field field) 1903 { 1904 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field); 1905 __s32 max_left; 1906 __s32 max_top; 1907 1908 if (width < c->min_scaled_width) { 1909 /* Max. hor. scale factor 16:1. */ 1910 c->rect.width = width * 16; 1911 } else if (width > c->max_scaled_width) { 1912 /* Min. hor. scale factor 1:1. */ 1913 c->rect.width = width; 1914 1915 max_left = b->left + b->width - width; 1916 max_left = min(max_left, (__s32) MAX_HDELAY); 1917 if (c->rect.left > max_left) 1918 c->rect.left = max_left; 1919 } 1920 1921 if (height < c->min_scaled_height) { 1922 /* Max. vert. scale factor 16:1, single fields 8:1. */ 1923 c->rect.height = height * 16; 1924 } else if (frame_height > c->max_scaled_height) { 1925 /* Min. vert. scale factor 1:1. 1926 Top and height count field lines times two. */ 1927 c->rect.height = (frame_height + 1) & ~1; 1928 1929 max_top = b->top + b->height - c->rect.height; 1930 if (c->rect.top > max_top) 1931 c->rect.top = max_top; 1932 } 1933 1934 bttv_crop_calc_limits(c); 1935 } 1936 1937 /* Returns an error if scaling to a frame or single field with the given 1938 width and height is not possible with the current cropping parameters 1939 and width aligned according to width_mask. If adjust_size is TRUE the 1940 function may adjust the width and/or height instead, rounding width 1941 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may 1942 also adjust the current cropping parameters to get closer to the 1943 desired image size. */ 1944 static int 1945 limit_scaled_size_lock (struct bttv_fh * fh, 1946 __s32 * width, 1947 __s32 * height, 1948 enum v4l2_field field, 1949 unsigned int width_mask, 1950 unsigned int width_bias, 1951 int adjust_size, 1952 int adjust_crop) 1953 { 1954 struct bttv *btv = fh->btv; 1955 const struct v4l2_rect *b; 1956 struct bttv_crop *c; 1957 __s32 min_width; 1958 __s32 min_height; 1959 __s32 max_width; 1960 __s32 max_height; 1961 int rc; 1962 1963 BUG_ON((int) width_mask >= 0 || 1964 width_bias >= (unsigned int) -width_mask); 1965 1966 /* Make sure tvnorm, vbi_end and the current cropping parameters 1967 remain consistent until we're done. */ 1968 1969 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; 1970 1971 /* Do crop - use current, don't - use default parameters. */ 1972 c = &btv->crop[!!fh->do_crop]; 1973 1974 if (fh->do_crop 1975 && adjust_size 1976 && adjust_crop 1977 && !locked_btres(btv, VIDEO_RESOURCES)) { 1978 min_width = 48; 1979 min_height = 32; 1980 1981 /* We cannot scale up. When the scaled image is larger 1982 than crop.rect we adjust the crop.rect as required 1983 by the V4L2 spec, hence cropcap.bounds are our limit. */ 1984 max_width = min_t(unsigned int, b->width, MAX_HACTIVE); 1985 max_height = b->height; 1986 1987 /* We cannot capture the same line as video and VBI data. 1988 Note btv->vbi_end is really a minimum, see 1989 bttv_vbi_try_fmt(). */ 1990 if (btv->vbi_end > b->top) { 1991 max_height -= btv->vbi_end - b->top; 1992 rc = -EBUSY; 1993 if (min_height > max_height) 1994 goto fail; 1995 } 1996 } else { 1997 rc = -EBUSY; 1998 if (btv->vbi_end > c->rect.top) 1999 goto fail; 2000 2001 min_width = c->min_scaled_width; 2002 min_height = c->min_scaled_height; 2003 max_width = c->max_scaled_width; 2004 max_height = c->max_scaled_height; 2005 2006 adjust_crop = 0; 2007 } 2008 2009 min_width = (min_width - width_mask - 1) & width_mask; 2010 max_width = max_width & width_mask; 2011 2012 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */ 2013 /* Min. scale factor is 1:1. */ 2014 max_height >>= !V4L2_FIELD_HAS_BOTH(field); 2015 2016 if (adjust_size) { 2017 *width = clamp(*width, min_width, max_width); 2018 *height = clamp(*height, min_height, max_height); 2019 2020 /* Round after clamping to avoid overflow. */ 2021 *width = (*width + width_bias) & width_mask; 2022 2023 if (adjust_crop) { 2024 bttv_crop_adjust(c, b, *width, *height, field); 2025 2026 if (btv->vbi_end > c->rect.top) { 2027 /* Move the crop window out of the way. */ 2028 c->rect.top = btv->vbi_end; 2029 } 2030 } 2031 } else { 2032 rc = -EINVAL; 2033 if (*width < min_width || 2034 *height < min_height || 2035 *width > max_width || 2036 *height > max_height || 2037 0 != (*width & ~width_mask)) 2038 goto fail; 2039 } 2040 2041 rc = 0; /* success */ 2042 2043 fail: 2044 2045 return rc; 2046 } 2047 2048 /* Returns an error if the given overlay window dimensions are not 2049 possible with the current cropping parameters. If adjust_size is 2050 TRUE the function may adjust the window width and/or height 2051 instead, however it always rounds the horizontal position and 2052 width as btcx_align() does. If adjust_crop is TRUE the function 2053 may also adjust the current cropping parameters to get closer 2054 to the desired window size. */ 2055 static int 2056 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win, 2057 int adjust_size, int adjust_crop) 2058 { 2059 enum v4l2_field field; 2060 unsigned int width_mask; 2061 int rc; 2062 2063 if (win->w.width < 48) 2064 win->w.width = 48; 2065 if (win->w.height < 32) 2066 win->w.height = 32; 2067 if (win->clipcount > 2048) 2068 win->clipcount = 2048; 2069 2070 win->chromakey = 0; 2071 win->global_alpha = 0; 2072 field = win->field; 2073 2074 switch (field) { 2075 case V4L2_FIELD_TOP: 2076 case V4L2_FIELD_BOTTOM: 2077 case V4L2_FIELD_INTERLACED: 2078 break; 2079 default: 2080 field = V4L2_FIELD_ANY; 2081 break; 2082 } 2083 if (V4L2_FIELD_ANY == field) { 2084 __s32 height2; 2085 2086 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1; 2087 field = (win->w.height > height2) 2088 ? V4L2_FIELD_INTERLACED 2089 : V4L2_FIELD_TOP; 2090 } 2091 win->field = field; 2092 2093 if (NULL == fh->ovfmt) 2094 return -EINVAL; 2095 /* 4-byte alignment. */ 2096 width_mask = ~0; 2097 switch (fh->ovfmt->depth) { 2098 case 8: 2099 case 24: 2100 width_mask = ~3; 2101 break; 2102 case 16: 2103 width_mask = ~1; 2104 break; 2105 case 32: 2106 break; 2107 default: 2108 BUG(); 2109 } 2110 2111 win->w.width -= win->w.left & ~width_mask; 2112 win->w.left = (win->w.left - width_mask - 1) & width_mask; 2113 2114 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height, 2115 field, width_mask, 2116 /* width_bias: round down */ 0, 2117 adjust_size, adjust_crop); 2118 if (0 != rc) 2119 return rc; 2120 return 0; 2121 } 2122 2123 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv, 2124 struct v4l2_window *win, int fixup) 2125 { 2126 struct v4l2_clip *clips = NULL; 2127 int n,size,retval = 0; 2128 2129 if (NULL == fh->ovfmt) 2130 return -EINVAL; 2131 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED)) 2132 return -EINVAL; 2133 retval = verify_window_lock(fh, win, 2134 /* adjust_size */ fixup, 2135 /* adjust_crop */ fixup); 2136 if (0 != retval) 2137 return retval; 2138 2139 /* copy clips -- luckily v4l1 + v4l2 are binary 2140 compatible here ...*/ 2141 n = win->clipcount; 2142 size = sizeof(*clips)*(n+4); 2143 clips = kmalloc(size,GFP_KERNEL); 2144 if (NULL == clips) 2145 return -ENOMEM; 2146 if (n > 0) { 2147 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) { 2148 kfree(clips); 2149 return -EFAULT; 2150 } 2151 } 2152 2153 /* clip against screen */ 2154 if (NULL != btv->fbuf.base) 2155 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height, 2156 &win->w, clips, n); 2157 btcx_sort_clips(clips,n); 2158 2159 /* 4-byte alignments */ 2160 switch (fh->ovfmt->depth) { 2161 case 8: 2162 case 24: 2163 btcx_align(&win->w, clips, n, 3); 2164 break; 2165 case 16: 2166 btcx_align(&win->w, clips, n, 1); 2167 break; 2168 case 32: 2169 /* no alignment fixups needed */ 2170 break; 2171 default: 2172 BUG(); 2173 } 2174 2175 kfree(fh->ov.clips); 2176 fh->ov.clips = clips; 2177 fh->ov.nclips = n; 2178 2179 fh->ov.w = win->w; 2180 fh->ov.field = win->field; 2181 fh->ov.setup_ok = 1; 2182 2183 btv->init.ov.w.width = win->w.width; 2184 btv->init.ov.w.height = win->w.height; 2185 btv->init.ov.field = win->field; 2186 2187 /* update overlay if needed */ 2188 retval = 0; 2189 if (check_btres(fh, RESOURCE_OVERLAY)) { 2190 struct bttv_buffer *new; 2191 2192 new = videobuf_sg_alloc(sizeof(*new)); 2193 new->crop = btv->crop[!!fh->do_crop].rect; 2194 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2195 retval = bttv_switch_overlay(btv,fh,new); 2196 } 2197 return retval; 2198 } 2199 2200 /* ----------------------------------------------------------------------- */ 2201 2202 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh) 2203 { 2204 struct videobuf_queue* q = NULL; 2205 2206 switch (fh->type) { 2207 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2208 q = &fh->cap; 2209 break; 2210 case V4L2_BUF_TYPE_VBI_CAPTURE: 2211 q = &fh->vbi; 2212 break; 2213 default: 2214 BUG(); 2215 } 2216 return q; 2217 } 2218 2219 static int bttv_resource(struct bttv_fh *fh) 2220 { 2221 int res = 0; 2222 2223 switch (fh->type) { 2224 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2225 res = RESOURCE_VIDEO_STREAM; 2226 break; 2227 case V4L2_BUF_TYPE_VBI_CAPTURE: 2228 res = RESOURCE_VBI; 2229 break; 2230 default: 2231 BUG(); 2232 } 2233 return res; 2234 } 2235 2236 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type) 2237 { 2238 struct videobuf_queue *q = bttv_queue(fh); 2239 int res = bttv_resource(fh); 2240 2241 if (check_btres(fh,res)) 2242 return -EBUSY; 2243 if (videobuf_queue_is_busy(q)) 2244 return -EBUSY; 2245 fh->type = type; 2246 return 0; 2247 } 2248 2249 static void 2250 pix_format_set_size (struct v4l2_pix_format * f, 2251 const struct bttv_format * fmt, 2252 unsigned int width, 2253 unsigned int height) 2254 { 2255 f->width = width; 2256 f->height = height; 2257 2258 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2259 f->bytesperline = width; /* Y plane */ 2260 f->sizeimage = (width * height * fmt->depth) >> 3; 2261 } else { 2262 f->bytesperline = (width * fmt->depth) >> 3; 2263 f->sizeimage = height * f->bytesperline; 2264 } 2265 } 2266 2267 static int bttv_g_fmt_vid_cap(struct file *file, void *priv, 2268 struct v4l2_format *f) 2269 { 2270 struct bttv_fh *fh = priv; 2271 2272 pix_format_set_size(&f->fmt.pix, fh->fmt, 2273 fh->width, fh->height); 2274 f->fmt.pix.field = fh->cap.field; 2275 f->fmt.pix.pixelformat = fh->fmt->fourcc; 2276 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2277 2278 return 0; 2279 } 2280 2281 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv, 2282 struct v4l2_format *f) 2283 { 2284 struct bttv_fh *fh = priv; 2285 2286 f->fmt.win.w = fh->ov.w; 2287 f->fmt.win.field = fh->ov.field; 2288 2289 return 0; 2290 } 2291 2292 static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt, 2293 unsigned int *width_mask, 2294 unsigned int *width_bias) 2295 { 2296 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2297 *width_mask = ~15; /* width must be a multiple of 16 pixels */ 2298 *width_bias = 8; /* nearest */ 2299 } else { 2300 *width_mask = ~3; /* width must be a multiple of 4 pixels */ 2301 *width_bias = 2; /* nearest */ 2302 } 2303 } 2304 2305 static int bttv_try_fmt_vid_cap(struct file *file, void *priv, 2306 struct v4l2_format *f) 2307 { 2308 const struct bttv_format *fmt; 2309 struct bttv_fh *fh = priv; 2310 struct bttv *btv = fh->btv; 2311 enum v4l2_field field; 2312 __s32 width, height; 2313 __s32 height2; 2314 unsigned int width_mask, width_bias; 2315 int rc; 2316 2317 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2318 if (NULL == fmt) 2319 return -EINVAL; 2320 2321 field = f->fmt.pix.field; 2322 2323 switch (field) { 2324 case V4L2_FIELD_TOP: 2325 case V4L2_FIELD_BOTTOM: 2326 case V4L2_FIELD_ALTERNATE: 2327 case V4L2_FIELD_INTERLACED: 2328 break; 2329 case V4L2_FIELD_SEQ_BT: 2330 case V4L2_FIELD_SEQ_TB: 2331 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) { 2332 field = V4L2_FIELD_SEQ_TB; 2333 break; 2334 } 2335 fallthrough; 2336 default: /* FIELD_ANY case */ 2337 height2 = btv->crop[!!fh->do_crop].rect.height >> 1; 2338 field = (f->fmt.pix.height > height2) 2339 ? V4L2_FIELD_INTERLACED 2340 : V4L2_FIELD_BOTTOM; 2341 break; 2342 } 2343 2344 width = f->fmt.pix.width; 2345 height = f->fmt.pix.height; 2346 2347 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2348 rc = limit_scaled_size_lock(fh, &width, &height, field, 2349 width_mask, width_bias, 2350 /* adjust_size */ 1, 2351 /* adjust_crop */ 0); 2352 if (0 != rc) 2353 return rc; 2354 2355 /* update data for the application */ 2356 f->fmt.pix.field = field; 2357 pix_format_set_size(&f->fmt.pix, fmt, width, height); 2358 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2359 2360 return 0; 2361 } 2362 2363 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, 2364 struct v4l2_format *f) 2365 { 2366 struct bttv_fh *fh = priv; 2367 2368 verify_window_lock(fh, &f->fmt.win, 2369 /* adjust_size */ 1, 2370 /* adjust_crop */ 0); 2371 return 0; 2372 } 2373 2374 static int bttv_s_fmt_vid_cap(struct file *file, void *priv, 2375 struct v4l2_format *f) 2376 { 2377 int retval; 2378 const struct bttv_format *fmt; 2379 struct bttv_fh *fh = priv; 2380 struct bttv *btv = fh->btv; 2381 __s32 width, height; 2382 unsigned int width_mask, width_bias; 2383 enum v4l2_field field; 2384 2385 retval = bttv_switch_type(fh, f->type); 2386 if (0 != retval) 2387 return retval; 2388 2389 retval = bttv_try_fmt_vid_cap(file, priv, f); 2390 if (0 != retval) 2391 return retval; 2392 2393 width = f->fmt.pix.width; 2394 height = f->fmt.pix.height; 2395 field = f->fmt.pix.field; 2396 2397 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2398 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2399 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field, 2400 width_mask, width_bias, 2401 /* adjust_size */ 1, 2402 /* adjust_crop */ 1); 2403 if (0 != retval) 2404 return retval; 2405 2406 f->fmt.pix.field = field; 2407 2408 /* update our state information */ 2409 fh->fmt = fmt; 2410 fh->cap.field = f->fmt.pix.field; 2411 fh->cap.last = V4L2_FIELD_NONE; 2412 fh->width = f->fmt.pix.width; 2413 fh->height = f->fmt.pix.height; 2414 btv->init.fmt = fmt; 2415 btv->init.width = f->fmt.pix.width; 2416 btv->init.height = f->fmt.pix.height; 2417 2418 return 0; 2419 } 2420 2421 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv, 2422 struct v4l2_format *f) 2423 { 2424 struct bttv_fh *fh = priv; 2425 struct bttv *btv = fh->btv; 2426 2427 if (no_overlay > 0) { 2428 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2429 return -EINVAL; 2430 } 2431 2432 return setup_window_lock(fh, btv, &f->fmt.win, 1); 2433 } 2434 2435 static int bttv_querycap(struct file *file, void *priv, 2436 struct v4l2_capability *cap) 2437 { 2438 struct bttv_fh *fh = priv; 2439 struct bttv *btv = fh->btv; 2440 2441 if (0 == v4l2) 2442 return -EINVAL; 2443 2444 strscpy(cap->driver, "bttv", sizeof(cap->driver)); 2445 strscpy(cap->card, btv->video_dev.name, sizeof(cap->card)); 2446 snprintf(cap->bus_info, sizeof(cap->bus_info), 2447 "PCI:%s", pci_name(btv->c.pci)); 2448 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | 2449 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; 2450 if (no_overlay <= 0) 2451 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY; 2452 if (video_is_registered(&btv->vbi_dev)) 2453 cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 2454 if (video_is_registered(&btv->radio_dev)) { 2455 cap->capabilities |= V4L2_CAP_RADIO; 2456 if (btv->has_tea575x) 2457 cap->capabilities |= V4L2_CAP_HW_FREQ_SEEK; 2458 } 2459 2460 /* 2461 * No need to lock here: those vars are initialized during board 2462 * probe and remains untouched during the rest of the driver lifecycle 2463 */ 2464 if (btv->has_saa6588) 2465 cap->capabilities |= V4L2_CAP_RDS_CAPTURE; 2466 if (btv->tuner_type != TUNER_ABSENT) 2467 cap->capabilities |= V4L2_CAP_TUNER; 2468 return 0; 2469 } 2470 2471 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f) 2472 { 2473 int index = -1, i; 2474 2475 for (i = 0; i < FORMATS; i++) { 2476 if (formats[i].fourcc != -1) 2477 index++; 2478 if ((unsigned int)index == f->index) 2479 break; 2480 } 2481 if (FORMATS == i) 2482 return -EINVAL; 2483 2484 f->pixelformat = formats[i].fourcc; 2485 2486 return i; 2487 } 2488 2489 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv, 2490 struct v4l2_fmtdesc *f) 2491 { 2492 int rc = bttv_enum_fmt_cap_ovr(f); 2493 2494 if (rc < 0) 2495 return rc; 2496 2497 return 0; 2498 } 2499 2500 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv, 2501 struct v4l2_fmtdesc *f) 2502 { 2503 int rc; 2504 2505 if (no_overlay > 0) { 2506 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2507 return -EINVAL; 2508 } 2509 2510 rc = bttv_enum_fmt_cap_ovr(f); 2511 2512 if (rc < 0) 2513 return rc; 2514 2515 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED)) 2516 return -EINVAL; 2517 2518 return 0; 2519 } 2520 2521 static int bttv_g_fbuf(struct file *file, void *f, 2522 struct v4l2_framebuffer *fb) 2523 { 2524 struct bttv_fh *fh = f; 2525 struct bttv *btv = fh->btv; 2526 2527 *fb = btv->fbuf; 2528 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; 2529 fb->flags = V4L2_FBUF_FLAG_PRIMARY; 2530 if (fh->ovfmt) 2531 fb->fmt.pixelformat = fh->ovfmt->fourcc; 2532 return 0; 2533 } 2534 2535 static int bttv_overlay(struct file *file, void *f, unsigned int on) 2536 { 2537 struct bttv_fh *fh = f; 2538 struct bttv *btv = fh->btv; 2539 struct bttv_buffer *new; 2540 int retval = 0; 2541 2542 if (on) { 2543 /* verify args */ 2544 if (unlikely(!btv->fbuf.base)) { 2545 return -EINVAL; 2546 } 2547 if (unlikely(!fh->ov.setup_ok)) { 2548 dprintk("%d: overlay: !setup_ok\n", btv->c.nr); 2549 retval = -EINVAL; 2550 } 2551 if (retval) 2552 return retval; 2553 } 2554 2555 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY)) 2556 return -EBUSY; 2557 2558 if (on) { 2559 fh->ov.tvnorm = btv->tvnorm; 2560 new = videobuf_sg_alloc(sizeof(*new)); 2561 new->crop = btv->crop[!!fh->do_crop].rect; 2562 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2563 } else { 2564 new = NULL; 2565 } 2566 2567 /* switch over */ 2568 retval = bttv_switch_overlay(btv, fh, new); 2569 return retval; 2570 } 2571 2572 static int bttv_s_fbuf(struct file *file, void *f, 2573 const struct v4l2_framebuffer *fb) 2574 { 2575 struct bttv_fh *fh = f; 2576 struct bttv *btv = fh->btv; 2577 const struct bttv_format *fmt; 2578 int retval; 2579 2580 if (!capable(CAP_SYS_ADMIN) && 2581 !capable(CAP_SYS_RAWIO)) 2582 return -EPERM; 2583 2584 /* check args */ 2585 fmt = format_by_fourcc(fb->fmt.pixelformat); 2586 if (NULL == fmt) 2587 return -EINVAL; 2588 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED)) 2589 return -EINVAL; 2590 2591 retval = -EINVAL; 2592 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2593 __s32 width = fb->fmt.width; 2594 __s32 height = fb->fmt.height; 2595 2596 retval = limit_scaled_size_lock(fh, &width, &height, 2597 V4L2_FIELD_INTERLACED, 2598 /* width_mask */ ~3, 2599 /* width_bias */ 2, 2600 /* adjust_size */ 0, 2601 /* adjust_crop */ 0); 2602 if (0 != retval) 2603 return retval; 2604 } 2605 2606 /* ok, accept it */ 2607 btv->fbuf.base = fb->base; 2608 btv->fbuf.fmt.width = fb->fmt.width; 2609 btv->fbuf.fmt.height = fb->fmt.height; 2610 if (0 != fb->fmt.bytesperline) 2611 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline; 2612 else 2613 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8; 2614 2615 retval = 0; 2616 fh->ovfmt = fmt; 2617 btv->init.ovfmt = fmt; 2618 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2619 fh->ov.w.left = 0; 2620 fh->ov.w.top = 0; 2621 fh->ov.w.width = fb->fmt.width; 2622 fh->ov.w.height = fb->fmt.height; 2623 btv->init.ov.w.width = fb->fmt.width; 2624 btv->init.ov.w.height = fb->fmt.height; 2625 2626 kfree(fh->ov.clips); 2627 fh->ov.clips = NULL; 2628 fh->ov.nclips = 0; 2629 2630 if (check_btres(fh, RESOURCE_OVERLAY)) { 2631 struct bttv_buffer *new; 2632 2633 new = videobuf_sg_alloc(sizeof(*new)); 2634 new->crop = btv->crop[!!fh->do_crop].rect; 2635 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2636 retval = bttv_switch_overlay(btv, fh, new); 2637 } 2638 } 2639 return retval; 2640 } 2641 2642 static int bttv_reqbufs(struct file *file, void *priv, 2643 struct v4l2_requestbuffers *p) 2644 { 2645 struct bttv_fh *fh = priv; 2646 return videobuf_reqbufs(bttv_queue(fh), p); 2647 } 2648 2649 static int bttv_querybuf(struct file *file, void *priv, 2650 struct v4l2_buffer *b) 2651 { 2652 struct bttv_fh *fh = priv; 2653 return videobuf_querybuf(bttv_queue(fh), b); 2654 } 2655 2656 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2657 { 2658 struct bttv_fh *fh = priv; 2659 struct bttv *btv = fh->btv; 2660 int res = bttv_resource(fh); 2661 2662 if (!check_alloc_btres_lock(btv, fh, res)) 2663 return -EBUSY; 2664 2665 return videobuf_qbuf(bttv_queue(fh), b); 2666 } 2667 2668 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2669 { 2670 struct bttv_fh *fh = priv; 2671 return videobuf_dqbuf(bttv_queue(fh), b, 2672 file->f_flags & O_NONBLOCK); 2673 } 2674 2675 static int bttv_streamon(struct file *file, void *priv, 2676 enum v4l2_buf_type type) 2677 { 2678 struct bttv_fh *fh = priv; 2679 struct bttv *btv = fh->btv; 2680 int res = bttv_resource(fh); 2681 2682 if (!check_alloc_btres_lock(btv, fh, res)) 2683 return -EBUSY; 2684 return videobuf_streamon(bttv_queue(fh)); 2685 } 2686 2687 2688 static int bttv_streamoff(struct file *file, void *priv, 2689 enum v4l2_buf_type type) 2690 { 2691 struct bttv_fh *fh = priv; 2692 struct bttv *btv = fh->btv; 2693 int retval; 2694 int res = bttv_resource(fh); 2695 2696 2697 retval = videobuf_streamoff(bttv_queue(fh)); 2698 if (retval < 0) 2699 return retval; 2700 free_btres_lock(btv, fh, res); 2701 return 0; 2702 } 2703 2704 static int bttv_g_parm(struct file *file, void *f, 2705 struct v4l2_streamparm *parm) 2706 { 2707 struct bttv_fh *fh = f; 2708 struct bttv *btv = fh->btv; 2709 2710 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2711 return -EINVAL; 2712 parm->parm.capture.readbuffers = gbuffers; 2713 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id, 2714 &parm->parm.capture.timeperframe); 2715 2716 return 0; 2717 } 2718 2719 static int bttv_g_tuner(struct file *file, void *priv, 2720 struct v4l2_tuner *t) 2721 { 2722 struct bttv_fh *fh = priv; 2723 struct bttv *btv = fh->btv; 2724 2725 if (0 != t->index) 2726 return -EINVAL; 2727 2728 t->rxsubchans = V4L2_TUNER_SUB_MONO; 2729 t->capability = V4L2_TUNER_CAP_NORM; 2730 bttv_call_all(btv, tuner, g_tuner, t); 2731 strscpy(t->name, "Television", sizeof(t->name)); 2732 t->type = V4L2_TUNER_ANALOG_TV; 2733 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) 2734 t->signal = 0xffff; 2735 2736 if (btv->audio_mode_gpio) 2737 btv->audio_mode_gpio(btv, t, 0); 2738 2739 return 0; 2740 } 2741 2742 static int bttv_g_pixelaspect(struct file *file, void *priv, 2743 int type, struct v4l2_fract *f) 2744 { 2745 struct bttv_fh *fh = priv; 2746 struct bttv *btv = fh->btv; 2747 2748 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2749 return -EINVAL; 2750 2751 /* defrect and bounds are set via g_selection */ 2752 *f = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect; 2753 return 0; 2754 } 2755 2756 static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel) 2757 { 2758 struct bttv_fh *fh = f; 2759 struct bttv *btv = fh->btv; 2760 2761 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2762 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2763 return -EINVAL; 2764 2765 switch (sel->target) { 2766 case V4L2_SEL_TGT_CROP: 2767 /* 2768 * No fh->do_crop = 1; because btv->crop[1] may be 2769 * inconsistent with fh->width or fh->height and apps 2770 * do not expect a change here. 2771 */ 2772 sel->r = btv->crop[!!fh->do_crop].rect; 2773 break; 2774 case V4L2_SEL_TGT_CROP_DEFAULT: 2775 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect; 2776 break; 2777 case V4L2_SEL_TGT_CROP_BOUNDS: 2778 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2779 break; 2780 default: 2781 return -EINVAL; 2782 } 2783 2784 return 0; 2785 } 2786 2787 static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel) 2788 { 2789 struct bttv_fh *fh = f; 2790 struct bttv *btv = fh->btv; 2791 const struct v4l2_rect *b; 2792 int retval; 2793 struct bttv_crop c; 2794 __s32 b_left; 2795 __s32 b_top; 2796 __s32 b_right; 2797 __s32 b_bottom; 2798 2799 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2800 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2801 return -EINVAL; 2802 2803 if (sel->target != V4L2_SEL_TGT_CROP) 2804 return -EINVAL; 2805 2806 /* Make sure tvnorm, vbi_end and the current cropping 2807 parameters remain consistent until we're done. Note 2808 read() may change vbi_end in check_alloc_btres_lock(). */ 2809 retval = -EBUSY; 2810 2811 if (locked_btres(fh->btv, VIDEO_RESOURCES)) { 2812 return retval; 2813 } 2814 2815 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2816 2817 b_left = b->left; 2818 b_right = b_left + b->width; 2819 b_bottom = b->top + b->height; 2820 2821 b_top = max(b->top, btv->vbi_end); 2822 if (b_top + 32 >= b_bottom) { 2823 return retval; 2824 } 2825 2826 /* Min. scaled size 48 x 32. */ 2827 c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48); 2828 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY); 2829 2830 c.rect.width = clamp_t(s32, sel->r.width, 2831 48, b_right - c.rect.left); 2832 2833 c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32); 2834 /* Top and height must be a multiple of two. */ 2835 c.rect.top = (c.rect.top + 1) & ~1; 2836 2837 c.rect.height = clamp_t(s32, sel->r.height, 2838 32, b_bottom - c.rect.top); 2839 c.rect.height = (c.rect.height + 1) & ~1; 2840 2841 bttv_crop_calc_limits(&c); 2842 2843 sel->r = c.rect; 2844 2845 btv->crop[1] = c; 2846 2847 fh->do_crop = 1; 2848 2849 if (fh->width < c.min_scaled_width) { 2850 fh->width = c.min_scaled_width; 2851 btv->init.width = c.min_scaled_width; 2852 } else if (fh->width > c.max_scaled_width) { 2853 fh->width = c.max_scaled_width; 2854 btv->init.width = c.max_scaled_width; 2855 } 2856 2857 if (fh->height < c.min_scaled_height) { 2858 fh->height = c.min_scaled_height; 2859 btv->init.height = c.min_scaled_height; 2860 } else if (fh->height > c.max_scaled_height) { 2861 fh->height = c.max_scaled_height; 2862 btv->init.height = c.max_scaled_height; 2863 } 2864 2865 return 0; 2866 } 2867 2868 static ssize_t bttv_read(struct file *file, char __user *data, 2869 size_t count, loff_t *ppos) 2870 { 2871 struct bttv_fh *fh = file->private_data; 2872 int retval = 0; 2873 2874 if (fh->btv->errors) 2875 bttv_reinit_bt848(fh->btv); 2876 dprintk("%d: read count=%d type=%s\n", 2877 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]); 2878 2879 switch (fh->type) { 2880 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2881 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) { 2882 /* VIDEO_READ in use by another fh, 2883 or VIDEO_STREAM by any fh. */ 2884 return -EBUSY; 2885 } 2886 retval = videobuf_read_one(&fh->cap, data, count, ppos, 2887 file->f_flags & O_NONBLOCK); 2888 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ); 2889 break; 2890 case V4L2_BUF_TYPE_VBI_CAPTURE: 2891 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2892 return -EBUSY; 2893 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1, 2894 file->f_flags & O_NONBLOCK); 2895 break; 2896 default: 2897 BUG(); 2898 } 2899 return retval; 2900 } 2901 2902 static __poll_t bttv_poll(struct file *file, poll_table *wait) 2903 { 2904 struct bttv_fh *fh = file->private_data; 2905 struct bttv_buffer *buf; 2906 enum v4l2_field field; 2907 __poll_t rc = 0; 2908 __poll_t req_events = poll_requested_events(wait); 2909 2910 if (v4l2_event_pending(&fh->fh)) 2911 rc = EPOLLPRI; 2912 else if (req_events & EPOLLPRI) 2913 poll_wait(file, &fh->fh.wait, wait); 2914 2915 if (!(req_events & (EPOLLIN | EPOLLRDNORM))) 2916 return rc; 2917 2918 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 2919 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2920 return rc | EPOLLERR; 2921 return rc | videobuf_poll_stream(file, &fh->vbi, wait); 2922 } 2923 2924 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) { 2925 /* streaming capture */ 2926 if (list_empty(&fh->cap.stream)) 2927 return rc | EPOLLERR; 2928 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); 2929 } else { 2930 /* read() capture */ 2931 if (NULL == fh->cap.read_buf) { 2932 /* need to capture a new frame */ 2933 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) 2934 return rc | EPOLLERR; 2935 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize); 2936 if (NULL == fh->cap.read_buf) 2937 return rc | EPOLLERR; 2938 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR; 2939 field = videobuf_next_field(&fh->cap); 2940 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) { 2941 kfree (fh->cap.read_buf); 2942 fh->cap.read_buf = NULL; 2943 return rc | EPOLLERR; 2944 } 2945 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf); 2946 fh->cap.read_off = 0; 2947 } 2948 buf = (struct bttv_buffer*)fh->cap.read_buf; 2949 } 2950 2951 poll_wait(file, &buf->vb.done, wait); 2952 if (buf->vb.state == VIDEOBUF_DONE || 2953 buf->vb.state == VIDEOBUF_ERROR) 2954 rc = rc | EPOLLIN|EPOLLRDNORM; 2955 return rc; 2956 } 2957 2958 static int bttv_open(struct file *file) 2959 { 2960 struct video_device *vdev = video_devdata(file); 2961 struct bttv *btv = video_drvdata(file); 2962 struct bttv_fh *fh; 2963 enum v4l2_buf_type type = 0; 2964 2965 dprintk("open dev=%s\n", video_device_node_name(vdev)); 2966 2967 if (vdev->vfl_type == VFL_TYPE_VIDEO) { 2968 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2969 } else if (vdev->vfl_type == VFL_TYPE_VBI) { 2970 type = V4L2_BUF_TYPE_VBI_CAPTURE; 2971 } else { 2972 WARN_ON(1); 2973 return -ENODEV; 2974 } 2975 2976 dprintk("%d: open called (type=%s)\n", 2977 btv->c.nr, v4l2_type_names[type]); 2978 2979 /* allocate per filehandle data */ 2980 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 2981 if (unlikely(!fh)) 2982 return -ENOMEM; 2983 btv->users++; 2984 file->private_data = fh; 2985 2986 *fh = btv->init; 2987 v4l2_fh_init(&fh->fh, vdev); 2988 2989 fh->type = type; 2990 fh->ov.setup_ok = 0; 2991 2992 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops, 2993 &btv->c.pci->dev, &btv->s_lock, 2994 V4L2_BUF_TYPE_VIDEO_CAPTURE, 2995 V4L2_FIELD_INTERLACED, 2996 sizeof(struct bttv_buffer), 2997 fh, &btv->lock); 2998 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops, 2999 &btv->c.pci->dev, &btv->s_lock, 3000 V4L2_BUF_TYPE_VBI_CAPTURE, 3001 V4L2_FIELD_SEQ_TB, 3002 sizeof(struct bttv_buffer), 3003 fh, &btv->lock); 3004 set_tvnorm(btv,btv->tvnorm); 3005 set_input(btv, btv->input, btv->tvnorm); 3006 audio_mute(btv, btv->mute); 3007 3008 /* The V4L2 spec requires one global set of cropping parameters 3009 which only change on request. These are stored in btv->crop[1]. 3010 However for compatibility with V4L apps and cropping unaware 3011 V4L2 apps we now reset the cropping parameters as seen through 3012 this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks 3013 will use btv->crop[0], the default cropping parameters for the 3014 current video standard, and VIDIOC_S_FMT will not implicitly 3015 change the cropping parameters until VIDIOC_S_SELECTION has been 3016 called. */ 3017 fh->do_crop = !reset_crop; /* module parameter */ 3018 3019 /* Likewise there should be one global set of VBI capture 3020 parameters, but for compatibility with V4L apps and earlier 3021 driver versions each fh has its own parameters. */ 3022 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm); 3023 3024 bttv_field_count(btv); 3025 v4l2_fh_add(&fh->fh); 3026 return 0; 3027 } 3028 3029 static int bttv_release(struct file *file) 3030 { 3031 struct bttv_fh *fh = file->private_data; 3032 struct bttv *btv = fh->btv; 3033 3034 /* turn off overlay */ 3035 if (check_btres(fh, RESOURCE_OVERLAY)) 3036 bttv_switch_overlay(btv,fh,NULL); 3037 3038 /* stop video capture */ 3039 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) { 3040 videobuf_streamoff(&fh->cap); 3041 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM); 3042 } 3043 if (fh->cap.read_buf) { 3044 buffer_release(&fh->cap,fh->cap.read_buf); 3045 kfree(fh->cap.read_buf); 3046 } 3047 if (check_btres(fh, RESOURCE_VIDEO_READ)) { 3048 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ); 3049 } 3050 3051 /* stop vbi capture */ 3052 if (check_btres(fh, RESOURCE_VBI)) { 3053 videobuf_stop(&fh->vbi); 3054 free_btres_lock(btv,fh,RESOURCE_VBI); 3055 } 3056 3057 /* free stuff */ 3058 3059 videobuf_mmap_free(&fh->cap); 3060 videobuf_mmap_free(&fh->vbi); 3061 file->private_data = NULL; 3062 3063 btv->users--; 3064 bttv_field_count(btv); 3065 3066 if (!btv->users) 3067 audio_mute(btv, btv->mute); 3068 3069 v4l2_fh_del(&fh->fh); 3070 v4l2_fh_exit(&fh->fh); 3071 kfree(fh); 3072 return 0; 3073 } 3074 3075 static int 3076 bttv_mmap(struct file *file, struct vm_area_struct *vma) 3077 { 3078 struct bttv_fh *fh = file->private_data; 3079 3080 dprintk("%d: mmap type=%s 0x%lx+%ld\n", 3081 fh->btv->c.nr, v4l2_type_names[fh->type], 3082 vma->vm_start, vma->vm_end - vma->vm_start); 3083 return videobuf_mmap_mapper(bttv_queue(fh),vma); 3084 } 3085 3086 static const struct v4l2_file_operations bttv_fops = 3087 { 3088 .owner = THIS_MODULE, 3089 .open = bttv_open, 3090 .release = bttv_release, 3091 .unlocked_ioctl = video_ioctl2, 3092 .read = bttv_read, 3093 .mmap = bttv_mmap, 3094 .poll = bttv_poll, 3095 }; 3096 3097 static const struct v4l2_ioctl_ops bttv_ioctl_ops = { 3098 .vidioc_querycap = bttv_querycap, 3099 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap, 3100 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap, 3101 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap, 3102 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap, 3103 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay, 3104 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay, 3105 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay, 3106 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay, 3107 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap, 3108 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, 3109 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap, 3110 .vidioc_g_pixelaspect = bttv_g_pixelaspect, 3111 .vidioc_reqbufs = bttv_reqbufs, 3112 .vidioc_querybuf = bttv_querybuf, 3113 .vidioc_qbuf = bttv_qbuf, 3114 .vidioc_dqbuf = bttv_dqbuf, 3115 .vidioc_s_std = bttv_s_std, 3116 .vidioc_g_std = bttv_g_std, 3117 .vidioc_enum_input = bttv_enum_input, 3118 .vidioc_g_input = bttv_g_input, 3119 .vidioc_s_input = bttv_s_input, 3120 .vidioc_streamon = bttv_streamon, 3121 .vidioc_streamoff = bttv_streamoff, 3122 .vidioc_g_tuner = bttv_g_tuner, 3123 .vidioc_s_tuner = bttv_s_tuner, 3124 .vidioc_g_selection = bttv_g_selection, 3125 .vidioc_s_selection = bttv_s_selection, 3126 .vidioc_g_fbuf = bttv_g_fbuf, 3127 .vidioc_s_fbuf = bttv_s_fbuf, 3128 .vidioc_overlay = bttv_overlay, 3129 .vidioc_g_parm = bttv_g_parm, 3130 .vidioc_g_frequency = bttv_g_frequency, 3131 .vidioc_s_frequency = bttv_s_frequency, 3132 .vidioc_log_status = bttv_log_status, 3133 .vidioc_querystd = bttv_querystd, 3134 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3135 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3136 #ifdef CONFIG_VIDEO_ADV_DEBUG 3137 .vidioc_g_register = bttv_g_register, 3138 .vidioc_s_register = bttv_s_register, 3139 #endif 3140 }; 3141 3142 static struct video_device bttv_video_template = { 3143 .fops = &bttv_fops, 3144 .ioctl_ops = &bttv_ioctl_ops, 3145 .tvnorms = BTTV_NORMS, 3146 }; 3147 3148 /* ----------------------------------------------------------------------- */ 3149 /* radio interface */ 3150 3151 static int radio_open(struct file *file) 3152 { 3153 struct video_device *vdev = video_devdata(file); 3154 struct bttv *btv = video_drvdata(file); 3155 struct bttv_fh *fh; 3156 3157 dprintk("open dev=%s\n", video_device_node_name(vdev)); 3158 3159 dprintk("%d: open called (radio)\n", btv->c.nr); 3160 3161 /* allocate per filehandle data */ 3162 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 3163 if (unlikely(!fh)) 3164 return -ENOMEM; 3165 file->private_data = fh; 3166 *fh = btv->init; 3167 v4l2_fh_init(&fh->fh, vdev); 3168 3169 btv->radio_user++; 3170 audio_mute(btv, btv->mute); 3171 3172 v4l2_fh_add(&fh->fh); 3173 3174 return 0; 3175 } 3176 3177 static int radio_release(struct file *file) 3178 { 3179 struct bttv_fh *fh = file->private_data; 3180 struct bttv *btv = fh->btv; 3181 struct saa6588_command cmd; 3182 3183 file->private_data = NULL; 3184 v4l2_fh_del(&fh->fh); 3185 v4l2_fh_exit(&fh->fh); 3186 kfree(fh); 3187 3188 btv->radio_user--; 3189 3190 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd); 3191 3192 if (btv->radio_user == 0) 3193 btv->has_radio_tuner = 0; 3194 return 0; 3195 } 3196 3197 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 3198 { 3199 struct bttv_fh *fh = priv; 3200 struct bttv *btv = fh->btv; 3201 3202 if (0 != t->index) 3203 return -EINVAL; 3204 strscpy(t->name, "Radio", sizeof(t->name)); 3205 t->type = V4L2_TUNER_RADIO; 3206 radio_enable(btv); 3207 3208 bttv_call_all(btv, tuner, g_tuner, t); 3209 3210 if (btv->audio_mode_gpio) 3211 btv->audio_mode_gpio(btv, t, 0); 3212 3213 if (btv->has_tea575x) 3214 return snd_tea575x_g_tuner(&btv->tea, t); 3215 3216 return 0; 3217 } 3218 3219 static int radio_s_tuner(struct file *file, void *priv, 3220 const struct v4l2_tuner *t) 3221 { 3222 struct bttv_fh *fh = priv; 3223 struct bttv *btv = fh->btv; 3224 3225 if (0 != t->index) 3226 return -EINVAL; 3227 3228 radio_enable(btv); 3229 bttv_call_all(btv, tuner, s_tuner, t); 3230 return 0; 3231 } 3232 3233 static int radio_s_hw_freq_seek(struct file *file, void *priv, 3234 const struct v4l2_hw_freq_seek *a) 3235 { 3236 struct bttv_fh *fh = priv; 3237 struct bttv *btv = fh->btv; 3238 3239 if (btv->has_tea575x) 3240 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a); 3241 3242 return -ENOTTY; 3243 } 3244 3245 static int radio_enum_freq_bands(struct file *file, void *priv, 3246 struct v4l2_frequency_band *band) 3247 { 3248 struct bttv_fh *fh = priv; 3249 struct bttv *btv = fh->btv; 3250 3251 if (btv->has_tea575x) 3252 return snd_tea575x_enum_freq_bands(&btv->tea, band); 3253 3254 return -ENOTTY; 3255 } 3256 3257 static ssize_t radio_read(struct file *file, char __user *data, 3258 size_t count, loff_t *ppos) 3259 { 3260 struct bttv_fh *fh = file->private_data; 3261 struct bttv *btv = fh->btv; 3262 struct saa6588_command cmd; 3263 3264 cmd.block_count = count / 3; 3265 cmd.nonblocking = file->f_flags & O_NONBLOCK; 3266 cmd.buffer = data; 3267 cmd.instance = file; 3268 cmd.result = -ENODEV; 3269 radio_enable(btv); 3270 3271 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd); 3272 3273 return cmd.result; 3274 } 3275 3276 static __poll_t radio_poll(struct file *file, poll_table *wait) 3277 { 3278 struct bttv_fh *fh = file->private_data; 3279 struct bttv *btv = fh->btv; 3280 __poll_t req_events = poll_requested_events(wait); 3281 struct saa6588_command cmd; 3282 __poll_t res = 0; 3283 3284 if (v4l2_event_pending(&fh->fh)) 3285 res = EPOLLPRI; 3286 else if (req_events & EPOLLPRI) 3287 poll_wait(file, &fh->fh.wait, wait); 3288 radio_enable(btv); 3289 cmd.instance = file; 3290 cmd.event_list = wait; 3291 cmd.poll_mask = res; 3292 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd); 3293 3294 return cmd.poll_mask; 3295 } 3296 3297 static const struct v4l2_file_operations radio_fops = 3298 { 3299 .owner = THIS_MODULE, 3300 .open = radio_open, 3301 .read = radio_read, 3302 .release = radio_release, 3303 .unlocked_ioctl = video_ioctl2, 3304 .poll = radio_poll, 3305 }; 3306 3307 static const struct v4l2_ioctl_ops radio_ioctl_ops = { 3308 .vidioc_querycap = bttv_querycap, 3309 .vidioc_log_status = bttv_log_status, 3310 .vidioc_g_tuner = radio_g_tuner, 3311 .vidioc_s_tuner = radio_s_tuner, 3312 .vidioc_g_frequency = bttv_g_frequency, 3313 .vidioc_s_frequency = bttv_s_frequency, 3314 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek, 3315 .vidioc_enum_freq_bands = radio_enum_freq_bands, 3316 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3317 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3318 }; 3319 3320 static struct video_device radio_template = { 3321 .fops = &radio_fops, 3322 .ioctl_ops = &radio_ioctl_ops, 3323 }; 3324 3325 /* ----------------------------------------------------------------------- */ 3326 /* some debug code */ 3327 3328 static int bttv_risc_decode(u32 risc) 3329 { 3330 static char *instr[16] = { 3331 [ BT848_RISC_WRITE >> 28 ] = "write", 3332 [ BT848_RISC_SKIP >> 28 ] = "skip", 3333 [ BT848_RISC_WRITEC >> 28 ] = "writec", 3334 [ BT848_RISC_JUMP >> 28 ] = "jump", 3335 [ BT848_RISC_SYNC >> 28 ] = "sync", 3336 [ BT848_RISC_WRITE123 >> 28 ] = "write123", 3337 [ BT848_RISC_SKIP123 >> 28 ] = "skip123", 3338 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23", 3339 }; 3340 static int incr[16] = { 3341 [ BT848_RISC_WRITE >> 28 ] = 2, 3342 [ BT848_RISC_JUMP >> 28 ] = 2, 3343 [ BT848_RISC_SYNC >> 28 ] = 2, 3344 [ BT848_RISC_WRITE123 >> 28 ] = 5, 3345 [ BT848_RISC_SKIP123 >> 28 ] = 2, 3346 [ BT848_RISC_WRITE1S23 >> 28 ] = 3, 3347 }; 3348 static char *bits[] = { 3349 "be0", "be1", "be2", "be3/resync", 3350 "set0", "set1", "set2", "set3", 3351 "clr0", "clr1", "clr2", "clr3", 3352 "irq", "res", "eol", "sol", 3353 }; 3354 int i; 3355 3356 pr_cont("0x%08x [ %s", risc, 3357 instr[risc >> 28] ? instr[risc >> 28] : "INVALID"); 3358 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--) 3359 if (risc & (1 << (i + 12))) 3360 pr_cont(" %s", bits[i]); 3361 pr_cont(" count=%d ]\n", risc & 0xfff); 3362 return incr[risc >> 28] ? incr[risc >> 28] : 1; 3363 } 3364 3365 static void bttv_risc_disasm(struct bttv *btv, 3366 struct btcx_riscmem *risc) 3367 { 3368 unsigned int i,j,n; 3369 3370 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n", 3371 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma); 3372 for (i = 0; i < (risc->size >> 2); i += n) { 3373 pr_info("%s: 0x%lx: ", 3374 btv->c.v4l2_dev.name, 3375 (unsigned long)(risc->dma + (i<<2))); 3376 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i])); 3377 for (j = 1; j < n; j++) 3378 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n", 3379 btv->c.v4l2_dev.name, 3380 (unsigned long)(risc->dma + ((i+j)<<2)), 3381 risc->cpu[i+j], j); 3382 if (0 == risc->cpu[i]) 3383 break; 3384 } 3385 } 3386 3387 static void bttv_print_riscaddr(struct bttv *btv) 3388 { 3389 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma); 3390 pr_info(" vbi : o=%08llx e=%08llx\n", 3391 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, 3392 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0); 3393 pr_info(" cap : o=%08llx e=%08llx\n", 3394 btv->curr.top 3395 ? (unsigned long long)btv->curr.top->top.dma : 0, 3396 btv->curr.bottom 3397 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); 3398 pr_info(" scr : o=%08llx e=%08llx\n", 3399 btv->screen ? (unsigned long long)btv->screen->top.dma : 0, 3400 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0); 3401 bttv_risc_disasm(btv, &btv->main); 3402 } 3403 3404 /* ----------------------------------------------------------------------- */ 3405 /* irq handler */ 3406 3407 static char *irq_name[] = { 3408 "FMTCHG", // format change detected (525 vs. 625) 3409 "VSYNC", // vertical sync (new field) 3410 "HSYNC", // horizontal sync 3411 "OFLOW", // chroma/luma AGC overflow 3412 "HLOCK", // horizontal lock changed 3413 "VPRES", // video presence changed 3414 "6", "7", 3415 "I2CDONE", // hw irc operation finished 3416 "GPINT", // gpio port triggered irq 3417 "10", 3418 "RISCI", // risc instruction triggered irq 3419 "FBUS", // pixel data fifo dropped data (high pci bus latencies) 3420 "FTRGT", // pixel data fifo overrun 3421 "FDSR", // fifo data stream resyncronisation 3422 "PPERR", // parity error (data transfer) 3423 "RIPERR", // parity error (read risc instructions) 3424 "PABORT", // pci abort 3425 "OCERR", // risc instruction error 3426 "SCERR", // syncronisation error 3427 }; 3428 3429 static void bttv_print_irqbits(u32 print, u32 mark) 3430 { 3431 unsigned int i; 3432 3433 pr_cont("bits:"); 3434 for (i = 0; i < ARRAY_SIZE(irq_name); i++) { 3435 if (print & (1 << i)) 3436 pr_cont(" %s", irq_name[i]); 3437 if (mark & (1 << i)) 3438 pr_cont("*"); 3439 } 3440 } 3441 3442 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc) 3443 { 3444 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n", 3445 btv->c.nr, 3446 (unsigned long)btv->main.dma, 3447 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]), 3448 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]), 3449 (unsigned long)rc); 3450 3451 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) { 3452 pr_notice("%d: Oh, there (temporarily?) is no input signal. Ok, then this is harmless, don't worry ;)\n", 3453 btv->c.nr); 3454 return; 3455 } 3456 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n", 3457 btv->c.nr); 3458 pr_notice("%d: Lets try to catch the culprit red-handed ...\n", 3459 btv->c.nr); 3460 dump_stack(); 3461 } 3462 3463 static int 3464 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set) 3465 { 3466 struct bttv_buffer *item; 3467 3468 memset(set,0,sizeof(*set)); 3469 3470 /* capture request ? */ 3471 if (!list_empty(&btv->capture)) { 3472 set->frame_irq = 1; 3473 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3474 if (V4L2_FIELD_HAS_TOP(item->vb.field)) 3475 set->top = item; 3476 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field)) 3477 set->bottom = item; 3478 3479 /* capture request for other field ? */ 3480 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) && 3481 (item->vb.queue.next != &btv->capture)) { 3482 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue); 3483 /* Mike Isely <isely@pobox.com> - Only check 3484 * and set up the bottom field in the logic 3485 * below. Don't ever do the top field. This 3486 * of course means that if we set up the 3487 * bottom field in the above code that we'll 3488 * actually skip a field. But that's OK. 3489 * Having processed only a single buffer this 3490 * time, then the next time around the first 3491 * available buffer should be for a top field. 3492 * That will then cause us here to set up a 3493 * top then a bottom field in the normal way. 3494 * The alternative to this understanding is 3495 * that we set up the second available buffer 3496 * as a top field, but that's out of order 3497 * since this driver always processes the top 3498 * field first - the effect will be the two 3499 * buffers being returned in the wrong order, 3500 * with the second buffer also being delayed 3501 * by one field time (owing to the fifo nature 3502 * of videobuf). Worse still, we'll be stuck 3503 * doing fields out of order now every time 3504 * until something else causes a field to be 3505 * dropped. By effectively forcing a field to 3506 * drop this way then we always get back into 3507 * sync within a single frame time. (Out of 3508 * order fields can screw up deinterlacing 3509 * algorithms.) */ 3510 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) { 3511 if (NULL == set->bottom && 3512 V4L2_FIELD_BOTTOM == item->vb.field) { 3513 set->bottom = item; 3514 } 3515 if (NULL != set->top && NULL != set->bottom) 3516 set->top_irq = 2; 3517 } 3518 } 3519 } 3520 3521 /* screen overlay ? */ 3522 if (NULL != btv->screen) { 3523 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) { 3524 if (NULL == set->top && NULL == set->bottom) { 3525 set->top = btv->screen; 3526 set->bottom = btv->screen; 3527 } 3528 } else { 3529 if (V4L2_FIELD_TOP == btv->screen->vb.field && 3530 NULL == set->top) { 3531 set->top = btv->screen; 3532 } 3533 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field && 3534 NULL == set->bottom) { 3535 set->bottom = btv->screen; 3536 } 3537 } 3538 } 3539 3540 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n", 3541 btv->c.nr, set->top, set->bottom, 3542 btv->screen, set->frame_irq, set->top_irq); 3543 return 0; 3544 } 3545 3546 static void 3547 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup, 3548 struct bttv_buffer_set *curr, unsigned int state) 3549 { 3550 u64 ts = ktime_get_ns(); 3551 3552 if (wakeup->top == wakeup->bottom) { 3553 if (NULL != wakeup->top && curr->top != wakeup->top) { 3554 if (irq_debug > 1) 3555 pr_debug("%d: wakeup: both=%p\n", 3556 btv->c.nr, wakeup->top); 3557 wakeup->top->vb.ts = ts; 3558 wakeup->top->vb.field_count = btv->field_count; 3559 wakeup->top->vb.state = state; 3560 wake_up(&wakeup->top->vb.done); 3561 } 3562 } else { 3563 if (NULL != wakeup->top && curr->top != wakeup->top) { 3564 if (irq_debug > 1) 3565 pr_debug("%d: wakeup: top=%p\n", 3566 btv->c.nr, wakeup->top); 3567 wakeup->top->vb.ts = ts; 3568 wakeup->top->vb.field_count = btv->field_count; 3569 wakeup->top->vb.state = state; 3570 wake_up(&wakeup->top->vb.done); 3571 } 3572 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) { 3573 if (irq_debug > 1) 3574 pr_debug("%d: wakeup: bottom=%p\n", 3575 btv->c.nr, wakeup->bottom); 3576 wakeup->bottom->vb.ts = ts; 3577 wakeup->bottom->vb.field_count = btv->field_count; 3578 wakeup->bottom->vb.state = state; 3579 wake_up(&wakeup->bottom->vb.done); 3580 } 3581 } 3582 } 3583 3584 static void 3585 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup, 3586 unsigned int state) 3587 { 3588 if (NULL == wakeup) 3589 return; 3590 3591 wakeup->vb.ts = ktime_get_ns(); 3592 wakeup->vb.field_count = btv->field_count; 3593 wakeup->vb.state = state; 3594 wake_up(&wakeup->vb.done); 3595 } 3596 3597 static void bttv_irq_timeout(struct timer_list *t) 3598 { 3599 struct bttv *btv = from_timer(btv, t, timeout); 3600 struct bttv_buffer_set old,new; 3601 struct bttv_buffer *ovbi; 3602 struct bttv_buffer *item; 3603 unsigned long flags; 3604 3605 if (bttv_verbose) { 3606 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ", 3607 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total, 3608 btread(BT848_RISC_COUNT)); 3609 bttv_print_irqbits(btread(BT848_INT_STAT),0); 3610 pr_cont("\n"); 3611 } 3612 3613 spin_lock_irqsave(&btv->s_lock,flags); 3614 3615 /* deactivate stuff */ 3616 memset(&new,0,sizeof(new)); 3617 old = btv->curr; 3618 ovbi = btv->cvbi; 3619 btv->curr = new; 3620 btv->cvbi = NULL; 3621 btv->loop_irq = 0; 3622 bttv_buffer_activate_video(btv, &new); 3623 bttv_buffer_activate_vbi(btv, NULL); 3624 bttv_set_dma(btv, 0); 3625 3626 /* wake up */ 3627 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR); 3628 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR); 3629 3630 /* cancel all outstanding capture / vbi requests */ 3631 while (!list_empty(&btv->capture)) { 3632 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3633 list_del(&item->vb.queue); 3634 item->vb.state = VIDEOBUF_ERROR; 3635 wake_up(&item->vb.done); 3636 } 3637 while (!list_empty(&btv->vcapture)) { 3638 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3639 list_del(&item->vb.queue); 3640 item->vb.state = VIDEOBUF_ERROR; 3641 wake_up(&item->vb.done); 3642 } 3643 3644 btv->errors++; 3645 spin_unlock_irqrestore(&btv->s_lock,flags); 3646 } 3647 3648 static void 3649 bttv_irq_wakeup_top(struct bttv *btv) 3650 { 3651 struct bttv_buffer *wakeup = btv->curr.top; 3652 3653 if (NULL == wakeup) 3654 return; 3655 3656 spin_lock(&btv->s_lock); 3657 btv->curr.top_irq = 0; 3658 btv->curr.top = NULL; 3659 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); 3660 3661 wakeup->vb.ts = ktime_get_ns(); 3662 wakeup->vb.field_count = btv->field_count; 3663 wakeup->vb.state = VIDEOBUF_DONE; 3664 wake_up(&wakeup->vb.done); 3665 spin_unlock(&btv->s_lock); 3666 } 3667 3668 static inline int is_active(struct btcx_riscmem *risc, u32 rc) 3669 { 3670 if (rc < risc->dma) 3671 return 0; 3672 if (rc > risc->dma + risc->size) 3673 return 0; 3674 return 1; 3675 } 3676 3677 static void 3678 bttv_irq_switch_video(struct bttv *btv) 3679 { 3680 struct bttv_buffer_set new; 3681 struct bttv_buffer_set old; 3682 dma_addr_t rc; 3683 3684 spin_lock(&btv->s_lock); 3685 3686 /* new buffer set */ 3687 bttv_irq_next_video(btv, &new); 3688 rc = btread(BT848_RISC_COUNT); 3689 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) || 3690 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) { 3691 btv->framedrop++; 3692 if (debug_latency) 3693 bttv_irq_debug_low_latency(btv, rc); 3694 spin_unlock(&btv->s_lock); 3695 return; 3696 } 3697 3698 /* switch over */ 3699 old = btv->curr; 3700 btv->curr = new; 3701 btv->loop_irq &= ~1; 3702 bttv_buffer_activate_video(btv, &new); 3703 bttv_set_dma(btv, 0); 3704 3705 /* switch input */ 3706 if (UNSET != btv->new_input) { 3707 video_mux(btv,btv->new_input); 3708 btv->new_input = UNSET; 3709 } 3710 3711 /* wake up finished buffers */ 3712 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE); 3713 spin_unlock(&btv->s_lock); 3714 } 3715 3716 static void 3717 bttv_irq_switch_vbi(struct bttv *btv) 3718 { 3719 struct bttv_buffer *new = NULL; 3720 struct bttv_buffer *old; 3721 u32 rc; 3722 3723 spin_lock(&btv->s_lock); 3724 3725 if (!list_empty(&btv->vcapture)) 3726 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3727 old = btv->cvbi; 3728 3729 rc = btread(BT848_RISC_COUNT); 3730 if (NULL != old && (is_active(&old->top, rc) || 3731 is_active(&old->bottom, rc))) { 3732 btv->framedrop++; 3733 if (debug_latency) 3734 bttv_irq_debug_low_latency(btv, rc); 3735 spin_unlock(&btv->s_lock); 3736 return; 3737 } 3738 3739 /* switch */ 3740 btv->cvbi = new; 3741 btv->loop_irq &= ~4; 3742 bttv_buffer_activate_vbi(btv, new); 3743 bttv_set_dma(btv, 0); 3744 3745 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE); 3746 spin_unlock(&btv->s_lock); 3747 } 3748 3749 static irqreturn_t bttv_irq(int irq, void *dev_id) 3750 { 3751 u32 stat,astat; 3752 u32 dstat; 3753 int count; 3754 struct bttv *btv; 3755 int handled = 0; 3756 3757 btv=(struct bttv *)dev_id; 3758 3759 count=0; 3760 while (1) { 3761 /* get/clear interrupt status bits */ 3762 stat=btread(BT848_INT_STAT); 3763 astat=stat&btread(BT848_INT_MASK); 3764 if (!astat) 3765 break; 3766 handled = 1; 3767 btwrite(stat,BT848_INT_STAT); 3768 3769 /* get device status bits */ 3770 dstat=btread(BT848_DSTATUS); 3771 3772 if (irq_debug) { 3773 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ", 3774 btv->c.nr, count, btv->field_count, 3775 stat>>28, btread(BT848_RISC_COUNT)); 3776 bttv_print_irqbits(stat,astat); 3777 if (stat & BT848_INT_HLOCK) 3778 pr_cont(" HLOC => %s", 3779 dstat & BT848_DSTATUS_HLOC 3780 ? "yes" : "no"); 3781 if (stat & BT848_INT_VPRES) 3782 pr_cont(" PRES => %s", 3783 dstat & BT848_DSTATUS_PRES 3784 ? "yes" : "no"); 3785 if (stat & BT848_INT_FMTCHG) 3786 pr_cont(" NUML => %s", 3787 dstat & BT848_DSTATUS_NUML 3788 ? "625" : "525"); 3789 pr_cont("\n"); 3790 } 3791 3792 if (astat&BT848_INT_VSYNC) 3793 btv->field_count++; 3794 3795 if ((astat & BT848_INT_GPINT) && btv->remote) { 3796 bttv_input_irq(btv); 3797 } 3798 3799 if (astat & BT848_INT_I2CDONE) { 3800 btv->i2c_done = stat; 3801 wake_up(&btv->i2c_queue); 3802 } 3803 3804 if ((astat & BT848_INT_RISCI) && (stat & (4<<28))) 3805 bttv_irq_switch_vbi(btv); 3806 3807 if ((astat & BT848_INT_RISCI) && (stat & (2<<28))) 3808 bttv_irq_wakeup_top(btv); 3809 3810 if ((astat & BT848_INT_RISCI) && (stat & (1<<28))) 3811 bttv_irq_switch_video(btv); 3812 3813 if ((astat & BT848_INT_HLOCK) && btv->opt_automute) 3814 /* trigger automute */ 3815 audio_mux_gpio(btv, btv->audio_input, btv->mute); 3816 3817 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) { 3818 pr_info("%d: %s%s @ %08x,", 3819 btv->c.nr, 3820 (astat & BT848_INT_SCERR) ? "SCERR" : "", 3821 (astat & BT848_INT_OCERR) ? "OCERR" : "", 3822 btread(BT848_RISC_COUNT)); 3823 bttv_print_irqbits(stat,astat); 3824 pr_cont("\n"); 3825 if (bttv_debug) 3826 bttv_print_riscaddr(btv); 3827 } 3828 if (fdsr && astat & BT848_INT_FDSR) { 3829 pr_info("%d: FDSR @ %08x\n", 3830 btv->c.nr, btread(BT848_RISC_COUNT)); 3831 if (bttv_debug) 3832 bttv_print_riscaddr(btv); 3833 } 3834 3835 count++; 3836 if (count > 4) { 3837 3838 if (count > 8 || !(astat & BT848_INT_GPINT)) { 3839 btwrite(0, BT848_INT_MASK); 3840 3841 pr_err("%d: IRQ lockup, cleared int mask [", 3842 btv->c.nr); 3843 } else { 3844 pr_err("%d: IRQ lockup, clearing GPINT from int mask [", 3845 btv->c.nr); 3846 3847 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT), 3848 BT848_INT_MASK); 3849 } 3850 3851 bttv_print_irqbits(stat,astat); 3852 3853 pr_cont("]\n"); 3854 } 3855 } 3856 btv->irq_total++; 3857 if (handled) 3858 btv->irq_me++; 3859 return IRQ_RETVAL(handled); 3860 } 3861 3862 3863 /* ----------------------------------------------------------------------- */ 3864 /* initialization */ 3865 3866 static void vdev_init(struct bttv *btv, 3867 struct video_device *vfd, 3868 const struct video_device *template, 3869 const char *type_name) 3870 { 3871 *vfd = *template; 3872 vfd->v4l2_dev = &btv->c.v4l2_dev; 3873 vfd->release = video_device_release_empty; 3874 video_set_drvdata(vfd, btv); 3875 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)", 3876 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "", 3877 type_name, bttv_tvcards[btv->c.type].name); 3878 if (btv->tuner_type == TUNER_ABSENT) { 3879 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); 3880 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); 3881 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); 3882 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); 3883 } 3884 } 3885 3886 static void bttv_unregister_video(struct bttv *btv) 3887 { 3888 video_unregister_device(&btv->video_dev); 3889 video_unregister_device(&btv->vbi_dev); 3890 video_unregister_device(&btv->radio_dev); 3891 } 3892 3893 /* register video4linux devices */ 3894 static int bttv_register_video(struct bttv *btv) 3895 { 3896 if (no_overlay > 0) 3897 pr_notice("Overlay support disabled\n"); 3898 3899 /* video */ 3900 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video"); 3901 btv->video_dev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | 3902 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; 3903 if (btv->tuner_type != TUNER_ABSENT) 3904 btv->video_dev.device_caps |= V4L2_CAP_TUNER; 3905 if (no_overlay <= 0) 3906 btv->video_dev.device_caps |= V4L2_CAP_VIDEO_OVERLAY; 3907 3908 if (video_register_device(&btv->video_dev, VFL_TYPE_VIDEO, 3909 video_nr[btv->c.nr]) < 0) 3910 goto err; 3911 pr_info("%d: registered device %s\n", 3912 btv->c.nr, video_device_node_name(&btv->video_dev)); 3913 if (device_create_file(&btv->video_dev.dev, 3914 &dev_attr_card)<0) { 3915 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr); 3916 goto err; 3917 } 3918 3919 /* vbi */ 3920 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi"); 3921 btv->vbi_dev.device_caps = V4L2_CAP_VBI_CAPTURE | V4L2_CAP_READWRITE | 3922 V4L2_CAP_STREAMING | V4L2_CAP_TUNER; 3923 if (btv->tuner_type != TUNER_ABSENT) 3924 btv->vbi_dev.device_caps |= V4L2_CAP_TUNER; 3925 3926 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI, 3927 vbi_nr[btv->c.nr]) < 0) 3928 goto err; 3929 pr_info("%d: registered device %s\n", 3930 btv->c.nr, video_device_node_name(&btv->vbi_dev)); 3931 3932 if (!btv->has_radio) 3933 return 0; 3934 /* radio */ 3935 vdev_init(btv, &btv->radio_dev, &radio_template, "radio"); 3936 btv->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER; 3937 if (btv->has_saa6588) 3938 btv->radio_dev.device_caps |= V4L2_CAP_READWRITE | 3939 V4L2_CAP_RDS_CAPTURE; 3940 if (btv->has_tea575x) 3941 btv->radio_dev.device_caps |= V4L2_CAP_HW_FREQ_SEEK; 3942 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler; 3943 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO, 3944 radio_nr[btv->c.nr]) < 0) 3945 goto err; 3946 pr_info("%d: registered device %s\n", 3947 btv->c.nr, video_device_node_name(&btv->radio_dev)); 3948 3949 /* all done */ 3950 return 0; 3951 3952 err: 3953 bttv_unregister_video(btv); 3954 return -1; 3955 } 3956 3957 3958 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ 3959 /* response on cards with no firmware is not enabled by OF */ 3960 static void pci_set_command(struct pci_dev *dev) 3961 { 3962 #if defined(__powerpc__) 3963 unsigned int cmd; 3964 3965 pci_read_config_dword(dev, PCI_COMMAND, &cmd); 3966 cmd = (cmd | PCI_COMMAND_MEMORY ); 3967 pci_write_config_dword(dev, PCI_COMMAND, cmd); 3968 #endif 3969 } 3970 3971 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) 3972 { 3973 struct v4l2_frequency init_freq = { 3974 .tuner = 0, 3975 .type = V4L2_TUNER_ANALOG_TV, 3976 .frequency = 980, 3977 }; 3978 int result; 3979 unsigned char lat; 3980 struct bttv *btv; 3981 struct v4l2_ctrl_handler *hdl; 3982 3983 if (bttv_num == BTTV_MAX) 3984 return -ENOMEM; 3985 pr_info("Bt8xx card found (%d)\n", bttv_num); 3986 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL); 3987 if (btv == NULL) { 3988 pr_err("out of memory\n"); 3989 return -ENOMEM; 3990 } 3991 btv->c.nr = bttv_num; 3992 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name), 3993 "bttv%d", btv->c.nr); 3994 3995 /* initialize structs / fill in defaults */ 3996 mutex_init(&btv->lock); 3997 spin_lock_init(&btv->s_lock); 3998 spin_lock_init(&btv->gpio_lock); 3999 init_waitqueue_head(&btv->i2c_queue); 4000 INIT_LIST_HEAD(&btv->c.subs); 4001 INIT_LIST_HEAD(&btv->capture); 4002 INIT_LIST_HEAD(&btv->vcapture); 4003 4004 timer_setup(&btv->timeout, bttv_irq_timeout, 0); 4005 4006 btv->i2c_rc = -1; 4007 btv->tuner_type = UNSET; 4008 btv->new_input = UNSET; 4009 btv->has_radio=radio[btv->c.nr]; 4010 4011 /* pci stuff (init, get irq/mmio, ... */ 4012 btv->c.pci = dev; 4013 btv->id = dev->device; 4014 if (pci_enable_device(dev)) { 4015 pr_warn("%d: Can't enable device\n", btv->c.nr); 4016 result = -EIO; 4017 goto free_mem; 4018 } 4019 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) { 4020 pr_warn("%d: No suitable DMA available\n", btv->c.nr); 4021 result = -EIO; 4022 goto free_mem; 4023 } 4024 if (!request_mem_region(pci_resource_start(dev,0), 4025 pci_resource_len(dev,0), 4026 btv->c.v4l2_dev.name)) { 4027 pr_warn("%d: can't request iomem (0x%llx)\n", 4028 btv->c.nr, 4029 (unsigned long long)pci_resource_start(dev, 0)); 4030 result = -EBUSY; 4031 goto free_mem; 4032 } 4033 pci_set_master(dev); 4034 pci_set_command(dev); 4035 4036 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev); 4037 if (result < 0) { 4038 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr); 4039 goto fail0; 4040 } 4041 hdl = &btv->ctrl_handler; 4042 v4l2_ctrl_handler_init(hdl, 20); 4043 btv->c.v4l2_dev.ctrl_handler = hdl; 4044 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6); 4045 4046 btv->revision = dev->revision; 4047 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); 4048 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n", 4049 bttv_num, btv->id, btv->revision, pci_name(dev), 4050 btv->c.pci->irq, lat, 4051 (unsigned long long)pci_resource_start(dev, 0)); 4052 schedule(); 4053 4054 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000); 4055 if (NULL == btv->bt848_mmio) { 4056 pr_err("%d: ioremap() failed\n", btv->c.nr); 4057 result = -EIO; 4058 goto fail1; 4059 } 4060 4061 /* identify card */ 4062 bttv_idcard(btv); 4063 4064 /* disable irqs, register irq handler */ 4065 btwrite(0, BT848_INT_MASK); 4066 result = request_irq(btv->c.pci->irq, bttv_irq, 4067 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv); 4068 if (result < 0) { 4069 pr_err("%d: can't get IRQ %d\n", 4070 bttv_num, btv->c.pci->irq); 4071 goto fail1; 4072 } 4073 4074 if (0 != bttv_handle_chipset(btv)) { 4075 result = -EIO; 4076 goto fail2; 4077 } 4078 4079 /* init options from insmod args */ 4080 btv->opt_combfilter = combfilter; 4081 bttv_ctrl_combfilter.def = combfilter; 4082 bttv_ctrl_lumafilter.def = lumafilter; 4083 btv->opt_automute = automute; 4084 bttv_ctrl_automute.def = automute; 4085 bttv_ctrl_agc_crush.def = agc_crush; 4086 btv->opt_vcr_hack = vcr_hack; 4087 bttv_ctrl_vcr_hack.def = vcr_hack; 4088 bttv_ctrl_whitecrush_upper.def = whitecrush_upper; 4089 bttv_ctrl_whitecrush_lower.def = whitecrush_lower; 4090 btv->opt_uv_ratio = uv_ratio; 4091 bttv_ctrl_uv_ratio.def = uv_ratio; 4092 bttv_ctrl_full_luma.def = full_luma_range; 4093 bttv_ctrl_coring.def = coring; 4094 4095 /* fill struct bttv with some useful defaults */ 4096 btv->init.btv = btv; 4097 btv->init.ov.w.width = 320; 4098 btv->init.ov.w.height = 240; 4099 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 4100 btv->init.width = 320; 4101 btv->init.height = 240; 4102 btv->init.ov.w.width = 320; 4103 btv->init.ov.w.height = 240; 4104 btv->init.ov.field = V4L2_FIELD_INTERLACED; 4105 btv->input = 0; 4106 4107 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4108 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768); 4109 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4110 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00); 4111 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4112 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768); 4113 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4114 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0); 4115 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4116 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768); 4117 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4118 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc); 4119 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4120 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 4121 if (btv->volume_gpio) 4122 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4123 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00); 4124 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL); 4125 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL); 4126 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL); 4127 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL); 4128 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL); 4129 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL); 4130 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL); 4131 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL); 4132 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL); 4133 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL); 4134 4135 /* initialize hardware */ 4136 if (bttv_gpio) 4137 bttv_gpio_tracking(btv,"pre-init"); 4138 4139 bttv_risc_init_main(btv); 4140 init_bt848(btv); 4141 4142 /* gpio */ 4143 btwrite(0x00, BT848_GPIO_REG_INP); 4144 btwrite(0x00, BT848_GPIO_OUT_EN); 4145 if (bttv_verbose) 4146 bttv_gpio_tracking(btv,"init"); 4147 4148 /* needs to be done before i2c is registered */ 4149 bttv_init_card1(btv); 4150 4151 /* register i2c + gpio */ 4152 init_bttv_i2c(btv); 4153 4154 /* some card-specific stuff (needs working i2c) */ 4155 bttv_init_card2(btv); 4156 bttv_init_tuner(btv); 4157 if (btv->tuner_type != TUNER_ABSENT) { 4158 bttv_set_frequency(btv, &init_freq); 4159 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */ 4160 } 4161 btv->std = V4L2_STD_PAL; 4162 init_irqreg(btv); 4163 if (!bttv_tvcards[btv->c.type].no_video) 4164 v4l2_ctrl_handler_setup(hdl); 4165 if (hdl->error) { 4166 result = hdl->error; 4167 goto fail2; 4168 } 4169 /* mute device */ 4170 audio_mute(btv, 1); 4171 4172 /* register video4linux + input */ 4173 if (!bttv_tvcards[btv->c.type].no_video) { 4174 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl, 4175 v4l2_ctrl_radio_filter, false); 4176 if (btv->radio_ctrl_handler.error) { 4177 result = btv->radio_ctrl_handler.error; 4178 goto fail2; 4179 } 4180 set_input(btv, 0, btv->tvnorm); 4181 bttv_crop_reset(&btv->crop[0], btv->tvnorm); 4182 btv->crop[1] = btv->crop[0]; /* current = default */ 4183 disclaim_vbi_lines(btv); 4184 disclaim_video_lines(btv); 4185 bttv_register_video(btv); 4186 } 4187 4188 /* add subdevices and autoload dvb-bt8xx if needed */ 4189 if (bttv_tvcards[btv->c.type].has_dvb) { 4190 bttv_sub_add_device(&btv->c, "dvb"); 4191 request_modules(btv); 4192 } 4193 4194 if (!disable_ir) { 4195 init_bttv_i2c_ir(btv); 4196 bttv_input_init(btv); 4197 } 4198 4199 /* everything is fine */ 4200 bttv_num++; 4201 return 0; 4202 4203 fail2: 4204 free_irq(btv->c.pci->irq,btv); 4205 4206 fail1: 4207 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4208 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4209 v4l2_device_unregister(&btv->c.v4l2_dev); 4210 4211 fail0: 4212 if (btv->bt848_mmio) 4213 iounmap(btv->bt848_mmio); 4214 release_mem_region(pci_resource_start(btv->c.pci,0), 4215 pci_resource_len(btv->c.pci,0)); 4216 pci_disable_device(btv->c.pci); 4217 4218 free_mem: 4219 bttvs[btv->c.nr] = NULL; 4220 kfree(btv); 4221 return result; 4222 } 4223 4224 static void bttv_remove(struct pci_dev *pci_dev) 4225 { 4226 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4227 struct bttv *btv = to_bttv(v4l2_dev); 4228 4229 if (bttv_verbose) 4230 pr_info("%d: unloading\n", btv->c.nr); 4231 4232 if (bttv_tvcards[btv->c.type].has_dvb) 4233 flush_request_modules(btv); 4234 4235 /* shutdown everything (DMA+IRQs) */ 4236 btand(~15, BT848_GPIO_DMA_CTL); 4237 btwrite(0, BT848_INT_MASK); 4238 btwrite(~0x0, BT848_INT_STAT); 4239 btwrite(0x0, BT848_GPIO_OUT_EN); 4240 if (bttv_gpio) 4241 bttv_gpio_tracking(btv,"cleanup"); 4242 4243 /* tell gpio modules we are leaving ... */ 4244 btv->shutdown=1; 4245 bttv_input_fini(btv); 4246 bttv_sub_del_devices(&btv->c); 4247 4248 /* unregister i2c_bus + input */ 4249 fini_bttv_i2c(btv); 4250 4251 /* unregister video4linux */ 4252 bttv_unregister_video(btv); 4253 4254 /* free allocated memory */ 4255 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4256 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4257 btcx_riscmem_free(btv->c.pci,&btv->main); 4258 4259 /* free resources */ 4260 free_irq(btv->c.pci->irq,btv); 4261 iounmap(btv->bt848_mmio); 4262 release_mem_region(pci_resource_start(btv->c.pci,0), 4263 pci_resource_len(btv->c.pci,0)); 4264 pci_disable_device(btv->c.pci); 4265 4266 v4l2_device_unregister(&btv->c.v4l2_dev); 4267 bttvs[btv->c.nr] = NULL; 4268 kfree(btv); 4269 4270 return; 4271 } 4272 4273 #ifdef CONFIG_PM 4274 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state) 4275 { 4276 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4277 struct bttv *btv = to_bttv(v4l2_dev); 4278 struct bttv_buffer_set idle; 4279 unsigned long flags; 4280 4281 dprintk("%d: suspend %d\n", btv->c.nr, state.event); 4282 4283 /* stop dma + irqs */ 4284 spin_lock_irqsave(&btv->s_lock,flags); 4285 memset(&idle, 0, sizeof(idle)); 4286 btv->state.video = btv->curr; 4287 btv->state.vbi = btv->cvbi; 4288 btv->state.loop_irq = btv->loop_irq; 4289 btv->curr = idle; 4290 btv->loop_irq = 0; 4291 bttv_buffer_activate_video(btv, &idle); 4292 bttv_buffer_activate_vbi(btv, NULL); 4293 bttv_set_dma(btv, 0); 4294 btwrite(0, BT848_INT_MASK); 4295 spin_unlock_irqrestore(&btv->s_lock,flags); 4296 4297 /* save bt878 state */ 4298 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN); 4299 btv->state.gpio_data = gpio_read(); 4300 4301 /* save pci state */ 4302 pci_save_state(pci_dev); 4303 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) { 4304 pci_disable_device(pci_dev); 4305 btv->state.disabled = 1; 4306 } 4307 return 0; 4308 } 4309 4310 static int bttv_resume(struct pci_dev *pci_dev) 4311 { 4312 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4313 struct bttv *btv = to_bttv(v4l2_dev); 4314 unsigned long flags; 4315 int err; 4316 4317 dprintk("%d: resume\n", btv->c.nr); 4318 4319 /* restore pci state */ 4320 if (btv->state.disabled) { 4321 err=pci_enable_device(pci_dev); 4322 if (err) { 4323 pr_warn("%d: Can't enable device\n", btv->c.nr); 4324 return err; 4325 } 4326 btv->state.disabled = 0; 4327 } 4328 err=pci_set_power_state(pci_dev, PCI_D0); 4329 if (err) { 4330 pci_disable_device(pci_dev); 4331 pr_warn("%d: Can't enable device\n", btv->c.nr); 4332 btv->state.disabled = 1; 4333 return err; 4334 } 4335 4336 pci_restore_state(pci_dev); 4337 4338 /* restore bt878 state */ 4339 bttv_reinit_bt848(btv); 4340 gpio_inout(0xffffff, btv->state.gpio_enable); 4341 gpio_write(btv->state.gpio_data); 4342 4343 /* restart dma */ 4344 spin_lock_irqsave(&btv->s_lock,flags); 4345 btv->curr = btv->state.video; 4346 btv->cvbi = btv->state.vbi; 4347 btv->loop_irq = btv->state.loop_irq; 4348 bttv_buffer_activate_video(btv, &btv->curr); 4349 bttv_buffer_activate_vbi(btv, btv->cvbi); 4350 bttv_set_dma(btv, 0); 4351 spin_unlock_irqrestore(&btv->s_lock,flags); 4352 return 0; 4353 } 4354 #endif 4355 4356 static const struct pci_device_id bttv_pci_tbl[] = { 4357 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0}, 4358 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0}, 4359 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0}, 4360 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0}, 4361 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0}, 4362 {0,} 4363 }; 4364 4365 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl); 4366 4367 static struct pci_driver bttv_pci_driver = { 4368 .name = "bttv", 4369 .id_table = bttv_pci_tbl, 4370 .probe = bttv_probe, 4371 .remove = bttv_remove, 4372 #ifdef CONFIG_PM 4373 .suspend = bttv_suspend, 4374 .resume = bttv_resume, 4375 #endif 4376 }; 4377 4378 static int __init bttv_init_module(void) 4379 { 4380 int ret; 4381 4382 bttv_num = 0; 4383 4384 pr_info("driver version %s loaded\n", BTTV_VERSION); 4385 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) 4386 gbuffers = 2; 4387 if (gbufsize > BTTV_MAX_FBUF) 4388 gbufsize = BTTV_MAX_FBUF; 4389 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; 4390 if (bttv_verbose) 4391 pr_info("using %d buffers with %dk (%d pages) each for capture\n", 4392 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT); 4393 4394 bttv_check_chipset(); 4395 4396 ret = bus_register(&bttv_sub_bus_type); 4397 if (ret < 0) { 4398 pr_warn("bus_register error: %d\n", ret); 4399 return ret; 4400 } 4401 ret = pci_register_driver(&bttv_pci_driver); 4402 if (ret < 0) 4403 bus_unregister(&bttv_sub_bus_type); 4404 4405 return ret; 4406 } 4407 4408 static void __exit bttv_cleanup_module(void) 4409 { 4410 pci_unregister_driver(&bttv_pci_driver); 4411 bus_unregister(&bttv_sub_bus_type); 4412 } 4413 4414 module_init(bttv_init_module); 4415 module_exit(bttv_cleanup_module); 4416