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 2062 if (win->w.width < 48) 2063 win->w.width = 48; 2064 if (win->w.height < 32) 2065 win->w.height = 32; 2066 if (win->clipcount > 2048) 2067 win->clipcount = 2048; 2068 2069 win->chromakey = 0; 2070 win->global_alpha = 0; 2071 field = win->field; 2072 2073 switch (field) { 2074 case V4L2_FIELD_TOP: 2075 case V4L2_FIELD_BOTTOM: 2076 case V4L2_FIELD_INTERLACED: 2077 break; 2078 default: 2079 field = V4L2_FIELD_ANY; 2080 break; 2081 } 2082 if (V4L2_FIELD_ANY == field) { 2083 __s32 height2; 2084 2085 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1; 2086 field = (win->w.height > height2) 2087 ? V4L2_FIELD_INTERLACED 2088 : V4L2_FIELD_TOP; 2089 } 2090 win->field = field; 2091 2092 if (NULL == fh->ovfmt) 2093 return -EINVAL; 2094 /* 4-byte alignment. */ 2095 width_mask = ~0; 2096 switch (fh->ovfmt->depth) { 2097 case 8: 2098 case 24: 2099 width_mask = ~3; 2100 break; 2101 case 16: 2102 width_mask = ~1; 2103 break; 2104 case 32: 2105 break; 2106 default: 2107 BUG(); 2108 } 2109 2110 win->w.width -= win->w.left & ~width_mask; 2111 win->w.left = (win->w.left - width_mask - 1) & width_mask; 2112 2113 return limit_scaled_size_lock(fh, &win->w.width, &win->w.height, 2114 field, width_mask, 2115 /* width_bias: round down */ 0, 2116 adjust_size, adjust_crop); 2117 } 2118 2119 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv, 2120 struct v4l2_window *win, int fixup) 2121 { 2122 struct v4l2_clip *clips = NULL; 2123 int n,size,retval = 0; 2124 2125 if (NULL == fh->ovfmt) 2126 return -EINVAL; 2127 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED)) 2128 return -EINVAL; 2129 retval = verify_window_lock(fh, win, 2130 /* adjust_size */ fixup, 2131 /* adjust_crop */ fixup); 2132 if (0 != retval) 2133 return retval; 2134 2135 /* copy clips -- luckily v4l1 + v4l2 are binary 2136 compatible here ...*/ 2137 n = win->clipcount; 2138 size = sizeof(*clips)*(n+4); 2139 clips = kmalloc(size,GFP_KERNEL); 2140 if (NULL == clips) 2141 return -ENOMEM; 2142 if (n > 0) 2143 memcpy(clips, win->clips, sizeof(struct v4l2_clip) * n); 2144 2145 /* clip against screen */ 2146 if (NULL != btv->fbuf.base) 2147 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height, 2148 &win->w, clips, n); 2149 btcx_sort_clips(clips,n); 2150 2151 /* 4-byte alignments */ 2152 switch (fh->ovfmt->depth) { 2153 case 8: 2154 case 24: 2155 btcx_align(&win->w, clips, n, 3); 2156 break; 2157 case 16: 2158 btcx_align(&win->w, clips, n, 1); 2159 break; 2160 case 32: 2161 /* no alignment fixups needed */ 2162 break; 2163 default: 2164 BUG(); 2165 } 2166 2167 kfree(fh->ov.clips); 2168 fh->ov.clips = clips; 2169 fh->ov.nclips = n; 2170 2171 fh->ov.w = win->w; 2172 fh->ov.field = win->field; 2173 fh->ov.setup_ok = 1; 2174 2175 btv->init.ov.w.width = win->w.width; 2176 btv->init.ov.w.height = win->w.height; 2177 btv->init.ov.field = win->field; 2178 2179 /* update overlay if needed */ 2180 retval = 0; 2181 if (check_btres(fh, RESOURCE_OVERLAY)) { 2182 struct bttv_buffer *new; 2183 2184 new = videobuf_sg_alloc(sizeof(*new)); 2185 new->crop = btv->crop[!!fh->do_crop].rect; 2186 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2187 retval = bttv_switch_overlay(btv,fh,new); 2188 } 2189 return retval; 2190 } 2191 2192 /* ----------------------------------------------------------------------- */ 2193 2194 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh) 2195 { 2196 struct videobuf_queue* q = NULL; 2197 2198 switch (fh->type) { 2199 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2200 q = &fh->cap; 2201 break; 2202 case V4L2_BUF_TYPE_VBI_CAPTURE: 2203 q = &fh->vbi; 2204 break; 2205 default: 2206 BUG(); 2207 } 2208 return q; 2209 } 2210 2211 static int bttv_resource(struct bttv_fh *fh) 2212 { 2213 int res = 0; 2214 2215 switch (fh->type) { 2216 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2217 res = RESOURCE_VIDEO_STREAM; 2218 break; 2219 case V4L2_BUF_TYPE_VBI_CAPTURE: 2220 res = RESOURCE_VBI; 2221 break; 2222 default: 2223 BUG(); 2224 } 2225 return res; 2226 } 2227 2228 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type) 2229 { 2230 struct videobuf_queue *q = bttv_queue(fh); 2231 int res = bttv_resource(fh); 2232 2233 if (check_btres(fh,res)) 2234 return -EBUSY; 2235 if (videobuf_queue_is_busy(q)) 2236 return -EBUSY; 2237 fh->type = type; 2238 return 0; 2239 } 2240 2241 static void 2242 pix_format_set_size (struct v4l2_pix_format * f, 2243 const struct bttv_format * fmt, 2244 unsigned int width, 2245 unsigned int height) 2246 { 2247 f->width = width; 2248 f->height = height; 2249 2250 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2251 f->bytesperline = width; /* Y plane */ 2252 f->sizeimage = (width * height * fmt->depth) >> 3; 2253 } else { 2254 f->bytesperline = (width * fmt->depth) >> 3; 2255 f->sizeimage = height * f->bytesperline; 2256 } 2257 } 2258 2259 static int bttv_g_fmt_vid_cap(struct file *file, void *priv, 2260 struct v4l2_format *f) 2261 { 2262 struct bttv_fh *fh = priv; 2263 2264 pix_format_set_size(&f->fmt.pix, fh->fmt, 2265 fh->width, fh->height); 2266 f->fmt.pix.field = fh->cap.field; 2267 f->fmt.pix.pixelformat = fh->fmt->fourcc; 2268 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2269 2270 return 0; 2271 } 2272 2273 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv, 2274 struct v4l2_format *f) 2275 { 2276 struct bttv_fh *fh = priv; 2277 2278 f->fmt.win.w = fh->ov.w; 2279 f->fmt.win.field = fh->ov.field; 2280 2281 return 0; 2282 } 2283 2284 static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt, 2285 unsigned int *width_mask, 2286 unsigned int *width_bias) 2287 { 2288 if (fmt->flags & FORMAT_FLAGS_PLANAR) { 2289 *width_mask = ~15; /* width must be a multiple of 16 pixels */ 2290 *width_bias = 8; /* nearest */ 2291 } else { 2292 *width_mask = ~3; /* width must be a multiple of 4 pixels */ 2293 *width_bias = 2; /* nearest */ 2294 } 2295 } 2296 2297 static int bttv_try_fmt_vid_cap(struct file *file, void *priv, 2298 struct v4l2_format *f) 2299 { 2300 const struct bttv_format *fmt; 2301 struct bttv_fh *fh = priv; 2302 struct bttv *btv = fh->btv; 2303 enum v4l2_field field; 2304 __s32 width, height; 2305 __s32 height2; 2306 unsigned int width_mask, width_bias; 2307 int rc; 2308 2309 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2310 if (NULL == fmt) 2311 return -EINVAL; 2312 2313 field = f->fmt.pix.field; 2314 2315 switch (field) { 2316 case V4L2_FIELD_TOP: 2317 case V4L2_FIELD_BOTTOM: 2318 case V4L2_FIELD_ALTERNATE: 2319 case V4L2_FIELD_INTERLACED: 2320 break; 2321 case V4L2_FIELD_SEQ_BT: 2322 case V4L2_FIELD_SEQ_TB: 2323 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) { 2324 field = V4L2_FIELD_SEQ_TB; 2325 break; 2326 } 2327 fallthrough; 2328 default: /* FIELD_ANY case */ 2329 height2 = btv->crop[!!fh->do_crop].rect.height >> 1; 2330 field = (f->fmt.pix.height > height2) 2331 ? V4L2_FIELD_INTERLACED 2332 : V4L2_FIELD_BOTTOM; 2333 break; 2334 } 2335 2336 width = f->fmt.pix.width; 2337 height = f->fmt.pix.height; 2338 2339 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2340 rc = limit_scaled_size_lock(fh, &width, &height, field, 2341 width_mask, width_bias, 2342 /* adjust_size */ 1, 2343 /* adjust_crop */ 0); 2344 if (0 != rc) 2345 return rc; 2346 2347 /* update data for the application */ 2348 f->fmt.pix.field = field; 2349 pix_format_set_size(&f->fmt.pix, fmt, width, height); 2350 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 2351 2352 return 0; 2353 } 2354 2355 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, 2356 struct v4l2_format *f) 2357 { 2358 struct bttv_fh *fh = priv; 2359 2360 verify_window_lock(fh, &f->fmt.win, 2361 /* adjust_size */ 1, 2362 /* adjust_crop */ 0); 2363 return 0; 2364 } 2365 2366 static int bttv_s_fmt_vid_cap(struct file *file, void *priv, 2367 struct v4l2_format *f) 2368 { 2369 int retval; 2370 const struct bttv_format *fmt; 2371 struct bttv_fh *fh = priv; 2372 struct bttv *btv = fh->btv; 2373 __s32 width, height; 2374 unsigned int width_mask, width_bias; 2375 enum v4l2_field field; 2376 2377 retval = bttv_switch_type(fh, f->type); 2378 if (0 != retval) 2379 return retval; 2380 2381 retval = bttv_try_fmt_vid_cap(file, priv, f); 2382 if (0 != retval) 2383 return retval; 2384 2385 width = f->fmt.pix.width; 2386 height = f->fmt.pix.height; 2387 field = f->fmt.pix.field; 2388 2389 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2390 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias); 2391 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field, 2392 width_mask, width_bias, 2393 /* adjust_size */ 1, 2394 /* adjust_crop */ 1); 2395 if (0 != retval) 2396 return retval; 2397 2398 f->fmt.pix.field = field; 2399 2400 /* update our state information */ 2401 fh->fmt = fmt; 2402 fh->cap.field = f->fmt.pix.field; 2403 fh->cap.last = V4L2_FIELD_NONE; 2404 fh->width = f->fmt.pix.width; 2405 fh->height = f->fmt.pix.height; 2406 btv->init.fmt = fmt; 2407 btv->init.width = f->fmt.pix.width; 2408 btv->init.height = f->fmt.pix.height; 2409 2410 return 0; 2411 } 2412 2413 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv, 2414 struct v4l2_format *f) 2415 { 2416 struct bttv_fh *fh = priv; 2417 struct bttv *btv = fh->btv; 2418 2419 if (no_overlay > 0) { 2420 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2421 return -EINVAL; 2422 } 2423 2424 return setup_window_lock(fh, btv, &f->fmt.win, 1); 2425 } 2426 2427 static int bttv_querycap(struct file *file, void *priv, 2428 struct v4l2_capability *cap) 2429 { 2430 struct bttv_fh *fh = priv; 2431 struct bttv *btv = fh->btv; 2432 2433 if (0 == v4l2) 2434 return -EINVAL; 2435 2436 strscpy(cap->driver, "bttv", sizeof(cap->driver)); 2437 strscpy(cap->card, btv->video_dev.name, sizeof(cap->card)); 2438 snprintf(cap->bus_info, sizeof(cap->bus_info), 2439 "PCI:%s", pci_name(btv->c.pci)); 2440 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | 2441 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; 2442 if (no_overlay <= 0) 2443 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY; 2444 if (video_is_registered(&btv->vbi_dev)) 2445 cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 2446 if (video_is_registered(&btv->radio_dev)) { 2447 cap->capabilities |= V4L2_CAP_RADIO; 2448 if (btv->has_tea575x) 2449 cap->capabilities |= V4L2_CAP_HW_FREQ_SEEK; 2450 } 2451 2452 /* 2453 * No need to lock here: those vars are initialized during board 2454 * probe and remains untouched during the rest of the driver lifecycle 2455 */ 2456 if (btv->has_saa6588) 2457 cap->capabilities |= V4L2_CAP_RDS_CAPTURE; 2458 if (btv->tuner_type != TUNER_ABSENT) 2459 cap->capabilities |= V4L2_CAP_TUNER; 2460 return 0; 2461 } 2462 2463 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f) 2464 { 2465 int index = -1, i; 2466 2467 for (i = 0; i < FORMATS; i++) { 2468 if (formats[i].fourcc != -1) 2469 index++; 2470 if ((unsigned int)index == f->index) 2471 break; 2472 } 2473 if (FORMATS == i) 2474 return -EINVAL; 2475 2476 f->pixelformat = formats[i].fourcc; 2477 2478 return i; 2479 } 2480 2481 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv, 2482 struct v4l2_fmtdesc *f) 2483 { 2484 int rc = bttv_enum_fmt_cap_ovr(f); 2485 2486 if (rc < 0) 2487 return rc; 2488 2489 return 0; 2490 } 2491 2492 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv, 2493 struct v4l2_fmtdesc *f) 2494 { 2495 int rc; 2496 2497 if (no_overlay > 0) { 2498 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); 2499 return -EINVAL; 2500 } 2501 2502 rc = bttv_enum_fmt_cap_ovr(f); 2503 2504 if (rc < 0) 2505 return rc; 2506 2507 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED)) 2508 return -EINVAL; 2509 2510 return 0; 2511 } 2512 2513 static int bttv_g_fbuf(struct file *file, void *f, 2514 struct v4l2_framebuffer *fb) 2515 { 2516 struct bttv_fh *fh = f; 2517 struct bttv *btv = fh->btv; 2518 2519 *fb = btv->fbuf; 2520 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; 2521 fb->flags = V4L2_FBUF_FLAG_PRIMARY; 2522 if (fh->ovfmt) 2523 fb->fmt.pixelformat = fh->ovfmt->fourcc; 2524 return 0; 2525 } 2526 2527 static int bttv_overlay(struct file *file, void *f, unsigned int on) 2528 { 2529 struct bttv_fh *fh = f; 2530 struct bttv *btv = fh->btv; 2531 struct bttv_buffer *new; 2532 int retval = 0; 2533 2534 if (on) { 2535 /* verify args */ 2536 if (unlikely(!btv->fbuf.base)) { 2537 return -EINVAL; 2538 } 2539 if (unlikely(!fh->ov.setup_ok)) { 2540 dprintk("%d: overlay: !setup_ok\n", btv->c.nr); 2541 retval = -EINVAL; 2542 } 2543 if (retval) 2544 return retval; 2545 } 2546 2547 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY)) 2548 return -EBUSY; 2549 2550 if (on) { 2551 fh->ov.tvnorm = btv->tvnorm; 2552 new = videobuf_sg_alloc(sizeof(*new)); 2553 new->crop = btv->crop[!!fh->do_crop].rect; 2554 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2555 } else { 2556 new = NULL; 2557 } 2558 2559 /* switch over */ 2560 retval = bttv_switch_overlay(btv, fh, new); 2561 return retval; 2562 } 2563 2564 static int bttv_s_fbuf(struct file *file, void *f, 2565 const struct v4l2_framebuffer *fb) 2566 { 2567 struct bttv_fh *fh = f; 2568 struct bttv *btv = fh->btv; 2569 const struct bttv_format *fmt; 2570 int retval; 2571 2572 if (!capable(CAP_SYS_ADMIN) && 2573 !capable(CAP_SYS_RAWIO)) 2574 return -EPERM; 2575 2576 /* check args */ 2577 fmt = format_by_fourcc(fb->fmt.pixelformat); 2578 if (NULL == fmt) 2579 return -EINVAL; 2580 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED)) 2581 return -EINVAL; 2582 2583 retval = -EINVAL; 2584 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2585 __s32 width = fb->fmt.width; 2586 __s32 height = fb->fmt.height; 2587 2588 retval = limit_scaled_size_lock(fh, &width, &height, 2589 V4L2_FIELD_INTERLACED, 2590 /* width_mask */ ~3, 2591 /* width_bias */ 2, 2592 /* adjust_size */ 0, 2593 /* adjust_crop */ 0); 2594 if (0 != retval) 2595 return retval; 2596 } 2597 2598 /* ok, accept it */ 2599 btv->fbuf.base = fb->base; 2600 btv->fbuf.fmt.width = fb->fmt.width; 2601 btv->fbuf.fmt.height = fb->fmt.height; 2602 if (0 != fb->fmt.bytesperline) 2603 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline; 2604 else 2605 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8; 2606 2607 retval = 0; 2608 fh->ovfmt = fmt; 2609 btv->init.ovfmt = fmt; 2610 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 2611 fh->ov.w.left = 0; 2612 fh->ov.w.top = 0; 2613 fh->ov.w.width = fb->fmt.width; 2614 fh->ov.w.height = fb->fmt.height; 2615 btv->init.ov.w.width = fb->fmt.width; 2616 btv->init.ov.w.height = fb->fmt.height; 2617 2618 kfree(fh->ov.clips); 2619 fh->ov.clips = NULL; 2620 fh->ov.nclips = 0; 2621 2622 if (check_btres(fh, RESOURCE_OVERLAY)) { 2623 struct bttv_buffer *new; 2624 2625 new = videobuf_sg_alloc(sizeof(*new)); 2626 new->crop = btv->crop[!!fh->do_crop].rect; 2627 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2628 retval = bttv_switch_overlay(btv, fh, new); 2629 } 2630 } 2631 return retval; 2632 } 2633 2634 static int bttv_reqbufs(struct file *file, void *priv, 2635 struct v4l2_requestbuffers *p) 2636 { 2637 struct bttv_fh *fh = priv; 2638 return videobuf_reqbufs(bttv_queue(fh), p); 2639 } 2640 2641 static int bttv_querybuf(struct file *file, void *priv, 2642 struct v4l2_buffer *b) 2643 { 2644 struct bttv_fh *fh = priv; 2645 return videobuf_querybuf(bttv_queue(fh), b); 2646 } 2647 2648 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2649 { 2650 struct bttv_fh *fh = priv; 2651 struct bttv *btv = fh->btv; 2652 int res = bttv_resource(fh); 2653 2654 if (!check_alloc_btres_lock(btv, fh, res)) 2655 return -EBUSY; 2656 2657 return videobuf_qbuf(bttv_queue(fh), b); 2658 } 2659 2660 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2661 { 2662 struct bttv_fh *fh = priv; 2663 return videobuf_dqbuf(bttv_queue(fh), b, 2664 file->f_flags & O_NONBLOCK); 2665 } 2666 2667 static int bttv_streamon(struct file *file, void *priv, 2668 enum v4l2_buf_type type) 2669 { 2670 struct bttv_fh *fh = priv; 2671 struct bttv *btv = fh->btv; 2672 int res = bttv_resource(fh); 2673 2674 if (!check_alloc_btres_lock(btv, fh, res)) 2675 return -EBUSY; 2676 return videobuf_streamon(bttv_queue(fh)); 2677 } 2678 2679 2680 static int bttv_streamoff(struct file *file, void *priv, 2681 enum v4l2_buf_type type) 2682 { 2683 struct bttv_fh *fh = priv; 2684 struct bttv *btv = fh->btv; 2685 int retval; 2686 int res = bttv_resource(fh); 2687 2688 2689 retval = videobuf_streamoff(bttv_queue(fh)); 2690 if (retval < 0) 2691 return retval; 2692 free_btres_lock(btv, fh, res); 2693 return 0; 2694 } 2695 2696 static int bttv_g_parm(struct file *file, void *f, 2697 struct v4l2_streamparm *parm) 2698 { 2699 struct bttv_fh *fh = f; 2700 struct bttv *btv = fh->btv; 2701 2702 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2703 return -EINVAL; 2704 parm->parm.capture.readbuffers = gbuffers; 2705 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id, 2706 &parm->parm.capture.timeperframe); 2707 2708 return 0; 2709 } 2710 2711 static int bttv_g_tuner(struct file *file, void *priv, 2712 struct v4l2_tuner *t) 2713 { 2714 struct bttv_fh *fh = priv; 2715 struct bttv *btv = fh->btv; 2716 2717 if (0 != t->index) 2718 return -EINVAL; 2719 2720 t->rxsubchans = V4L2_TUNER_SUB_MONO; 2721 t->capability = V4L2_TUNER_CAP_NORM; 2722 bttv_call_all(btv, tuner, g_tuner, t); 2723 strscpy(t->name, "Television", sizeof(t->name)); 2724 t->type = V4L2_TUNER_ANALOG_TV; 2725 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) 2726 t->signal = 0xffff; 2727 2728 if (btv->audio_mode_gpio) 2729 btv->audio_mode_gpio(btv, t, 0); 2730 2731 return 0; 2732 } 2733 2734 static int bttv_g_pixelaspect(struct file *file, void *priv, 2735 int type, struct v4l2_fract *f) 2736 { 2737 struct bttv_fh *fh = priv; 2738 struct bttv *btv = fh->btv; 2739 2740 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2741 return -EINVAL; 2742 2743 /* defrect and bounds are set via g_selection */ 2744 *f = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect; 2745 return 0; 2746 } 2747 2748 static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel) 2749 { 2750 struct bttv_fh *fh = f; 2751 struct bttv *btv = fh->btv; 2752 2753 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2754 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2755 return -EINVAL; 2756 2757 switch (sel->target) { 2758 case V4L2_SEL_TGT_CROP: 2759 /* 2760 * No fh->do_crop = 1; because btv->crop[1] may be 2761 * inconsistent with fh->width or fh->height and apps 2762 * do not expect a change here. 2763 */ 2764 sel->r = btv->crop[!!fh->do_crop].rect; 2765 break; 2766 case V4L2_SEL_TGT_CROP_DEFAULT: 2767 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect; 2768 break; 2769 case V4L2_SEL_TGT_CROP_BOUNDS: 2770 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2771 break; 2772 default: 2773 return -EINVAL; 2774 } 2775 2776 return 0; 2777 } 2778 2779 static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel) 2780 { 2781 struct bttv_fh *fh = f; 2782 struct bttv *btv = fh->btv; 2783 const struct v4l2_rect *b; 2784 int retval; 2785 struct bttv_crop c; 2786 __s32 b_left; 2787 __s32 b_top; 2788 __s32 b_right; 2789 __s32 b_bottom; 2790 2791 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 2792 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) 2793 return -EINVAL; 2794 2795 if (sel->target != V4L2_SEL_TGT_CROP) 2796 return -EINVAL; 2797 2798 /* Make sure tvnorm, vbi_end and the current cropping 2799 parameters remain consistent until we're done. Note 2800 read() may change vbi_end in check_alloc_btres_lock(). */ 2801 retval = -EBUSY; 2802 2803 if (locked_btres(fh->btv, VIDEO_RESOURCES)) { 2804 return retval; 2805 } 2806 2807 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; 2808 2809 b_left = b->left; 2810 b_right = b_left + b->width; 2811 b_bottom = b->top + b->height; 2812 2813 b_top = max(b->top, btv->vbi_end); 2814 if (b_top + 32 >= b_bottom) { 2815 return retval; 2816 } 2817 2818 /* Min. scaled size 48 x 32. */ 2819 c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48); 2820 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY); 2821 2822 c.rect.width = clamp_t(s32, sel->r.width, 2823 48, b_right - c.rect.left); 2824 2825 c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32); 2826 /* Top and height must be a multiple of two. */ 2827 c.rect.top = (c.rect.top + 1) & ~1; 2828 2829 c.rect.height = clamp_t(s32, sel->r.height, 2830 32, b_bottom - c.rect.top); 2831 c.rect.height = (c.rect.height + 1) & ~1; 2832 2833 bttv_crop_calc_limits(&c); 2834 2835 sel->r = c.rect; 2836 2837 btv->crop[1] = c; 2838 2839 fh->do_crop = 1; 2840 2841 if (fh->width < c.min_scaled_width) { 2842 fh->width = c.min_scaled_width; 2843 btv->init.width = c.min_scaled_width; 2844 } else if (fh->width > c.max_scaled_width) { 2845 fh->width = c.max_scaled_width; 2846 btv->init.width = c.max_scaled_width; 2847 } 2848 2849 if (fh->height < c.min_scaled_height) { 2850 fh->height = c.min_scaled_height; 2851 btv->init.height = c.min_scaled_height; 2852 } else if (fh->height > c.max_scaled_height) { 2853 fh->height = c.max_scaled_height; 2854 btv->init.height = c.max_scaled_height; 2855 } 2856 2857 return 0; 2858 } 2859 2860 static ssize_t bttv_read(struct file *file, char __user *data, 2861 size_t count, loff_t *ppos) 2862 { 2863 struct bttv_fh *fh = file->private_data; 2864 int retval = 0; 2865 2866 if (fh->btv->errors) 2867 bttv_reinit_bt848(fh->btv); 2868 dprintk("%d: read count=%d type=%s\n", 2869 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]); 2870 2871 switch (fh->type) { 2872 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2873 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) { 2874 /* VIDEO_READ in use by another fh, 2875 or VIDEO_STREAM by any fh. */ 2876 return -EBUSY; 2877 } 2878 retval = videobuf_read_one(&fh->cap, data, count, ppos, 2879 file->f_flags & O_NONBLOCK); 2880 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ); 2881 break; 2882 case V4L2_BUF_TYPE_VBI_CAPTURE: 2883 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2884 return -EBUSY; 2885 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1, 2886 file->f_flags & O_NONBLOCK); 2887 break; 2888 default: 2889 BUG(); 2890 } 2891 return retval; 2892 } 2893 2894 static __poll_t bttv_poll(struct file *file, poll_table *wait) 2895 { 2896 struct bttv_fh *fh = file->private_data; 2897 struct bttv_buffer *buf; 2898 enum v4l2_field field; 2899 __poll_t rc = 0; 2900 __poll_t req_events = poll_requested_events(wait); 2901 2902 if (v4l2_event_pending(&fh->fh)) 2903 rc = EPOLLPRI; 2904 else if (req_events & EPOLLPRI) 2905 poll_wait(file, &fh->fh.wait, wait); 2906 2907 if (!(req_events & (EPOLLIN | EPOLLRDNORM))) 2908 return rc; 2909 2910 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 2911 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) 2912 return rc | EPOLLERR; 2913 return rc | videobuf_poll_stream(file, &fh->vbi, wait); 2914 } 2915 2916 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) { 2917 /* streaming capture */ 2918 if (list_empty(&fh->cap.stream)) 2919 return rc | EPOLLERR; 2920 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); 2921 } else { 2922 /* read() capture */ 2923 if (NULL == fh->cap.read_buf) { 2924 /* need to capture a new frame */ 2925 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) 2926 return rc | EPOLLERR; 2927 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize); 2928 if (NULL == fh->cap.read_buf) 2929 return rc | EPOLLERR; 2930 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR; 2931 field = videobuf_next_field(&fh->cap); 2932 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) { 2933 kfree (fh->cap.read_buf); 2934 fh->cap.read_buf = NULL; 2935 return rc | EPOLLERR; 2936 } 2937 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf); 2938 fh->cap.read_off = 0; 2939 } 2940 buf = (struct bttv_buffer*)fh->cap.read_buf; 2941 } 2942 2943 poll_wait(file, &buf->vb.done, wait); 2944 if (buf->vb.state == VIDEOBUF_DONE || 2945 buf->vb.state == VIDEOBUF_ERROR) 2946 rc = rc | EPOLLIN|EPOLLRDNORM; 2947 return rc; 2948 } 2949 2950 static int bttv_open(struct file *file) 2951 { 2952 struct video_device *vdev = video_devdata(file); 2953 struct bttv *btv = video_drvdata(file); 2954 struct bttv_fh *fh; 2955 enum v4l2_buf_type type = 0; 2956 2957 dprintk("open dev=%s\n", video_device_node_name(vdev)); 2958 2959 if (vdev->vfl_type == VFL_TYPE_VIDEO) { 2960 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2961 } else if (vdev->vfl_type == VFL_TYPE_VBI) { 2962 type = V4L2_BUF_TYPE_VBI_CAPTURE; 2963 } else { 2964 WARN_ON(1); 2965 return -ENODEV; 2966 } 2967 2968 dprintk("%d: open called (type=%s)\n", 2969 btv->c.nr, v4l2_type_names[type]); 2970 2971 /* allocate per filehandle data */ 2972 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 2973 if (unlikely(!fh)) 2974 return -ENOMEM; 2975 btv->users++; 2976 file->private_data = fh; 2977 2978 *fh = btv->init; 2979 v4l2_fh_init(&fh->fh, vdev); 2980 2981 fh->type = type; 2982 fh->ov.setup_ok = 0; 2983 2984 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops, 2985 &btv->c.pci->dev, &btv->s_lock, 2986 V4L2_BUF_TYPE_VIDEO_CAPTURE, 2987 V4L2_FIELD_INTERLACED, 2988 sizeof(struct bttv_buffer), 2989 fh, &btv->lock); 2990 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops, 2991 &btv->c.pci->dev, &btv->s_lock, 2992 V4L2_BUF_TYPE_VBI_CAPTURE, 2993 V4L2_FIELD_SEQ_TB, 2994 sizeof(struct bttv_buffer), 2995 fh, &btv->lock); 2996 set_tvnorm(btv,btv->tvnorm); 2997 set_input(btv, btv->input, btv->tvnorm); 2998 audio_mute(btv, btv->mute); 2999 3000 /* The V4L2 spec requires one global set of cropping parameters 3001 which only change on request. These are stored in btv->crop[1]. 3002 However for compatibility with V4L apps and cropping unaware 3003 V4L2 apps we now reset the cropping parameters as seen through 3004 this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks 3005 will use btv->crop[0], the default cropping parameters for the 3006 current video standard, and VIDIOC_S_FMT will not implicitly 3007 change the cropping parameters until VIDIOC_S_SELECTION has been 3008 called. */ 3009 fh->do_crop = !reset_crop; /* module parameter */ 3010 3011 /* Likewise there should be one global set of VBI capture 3012 parameters, but for compatibility with V4L apps and earlier 3013 driver versions each fh has its own parameters. */ 3014 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm); 3015 3016 bttv_field_count(btv); 3017 v4l2_fh_add(&fh->fh); 3018 return 0; 3019 } 3020 3021 static int bttv_release(struct file *file) 3022 { 3023 struct bttv_fh *fh = file->private_data; 3024 struct bttv *btv = fh->btv; 3025 3026 /* turn off overlay */ 3027 if (check_btres(fh, RESOURCE_OVERLAY)) 3028 bttv_switch_overlay(btv,fh,NULL); 3029 3030 /* stop video capture */ 3031 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) { 3032 videobuf_streamoff(&fh->cap); 3033 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM); 3034 } 3035 if (fh->cap.read_buf) { 3036 buffer_release(&fh->cap,fh->cap.read_buf); 3037 kfree(fh->cap.read_buf); 3038 } 3039 if (check_btres(fh, RESOURCE_VIDEO_READ)) { 3040 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ); 3041 } 3042 3043 /* stop vbi capture */ 3044 if (check_btres(fh, RESOURCE_VBI)) { 3045 videobuf_stop(&fh->vbi); 3046 free_btres_lock(btv,fh,RESOURCE_VBI); 3047 } 3048 3049 /* free stuff */ 3050 3051 videobuf_mmap_free(&fh->cap); 3052 videobuf_mmap_free(&fh->vbi); 3053 file->private_data = NULL; 3054 3055 btv->users--; 3056 bttv_field_count(btv); 3057 3058 if (!btv->users) 3059 audio_mute(btv, btv->mute); 3060 3061 v4l2_fh_del(&fh->fh); 3062 v4l2_fh_exit(&fh->fh); 3063 kfree(fh); 3064 return 0; 3065 } 3066 3067 static int 3068 bttv_mmap(struct file *file, struct vm_area_struct *vma) 3069 { 3070 struct bttv_fh *fh = file->private_data; 3071 3072 dprintk("%d: mmap type=%s 0x%lx+%ld\n", 3073 fh->btv->c.nr, v4l2_type_names[fh->type], 3074 vma->vm_start, vma->vm_end - vma->vm_start); 3075 return videobuf_mmap_mapper(bttv_queue(fh),vma); 3076 } 3077 3078 static const struct v4l2_file_operations bttv_fops = 3079 { 3080 .owner = THIS_MODULE, 3081 .open = bttv_open, 3082 .release = bttv_release, 3083 .unlocked_ioctl = video_ioctl2, 3084 .read = bttv_read, 3085 .mmap = bttv_mmap, 3086 .poll = bttv_poll, 3087 }; 3088 3089 static const struct v4l2_ioctl_ops bttv_ioctl_ops = { 3090 .vidioc_querycap = bttv_querycap, 3091 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap, 3092 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap, 3093 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap, 3094 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap, 3095 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay, 3096 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay, 3097 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay, 3098 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay, 3099 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap, 3100 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, 3101 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap, 3102 .vidioc_g_pixelaspect = bttv_g_pixelaspect, 3103 .vidioc_reqbufs = bttv_reqbufs, 3104 .vidioc_querybuf = bttv_querybuf, 3105 .vidioc_qbuf = bttv_qbuf, 3106 .vidioc_dqbuf = bttv_dqbuf, 3107 .vidioc_s_std = bttv_s_std, 3108 .vidioc_g_std = bttv_g_std, 3109 .vidioc_enum_input = bttv_enum_input, 3110 .vidioc_g_input = bttv_g_input, 3111 .vidioc_s_input = bttv_s_input, 3112 .vidioc_streamon = bttv_streamon, 3113 .vidioc_streamoff = bttv_streamoff, 3114 .vidioc_g_tuner = bttv_g_tuner, 3115 .vidioc_s_tuner = bttv_s_tuner, 3116 .vidioc_g_selection = bttv_g_selection, 3117 .vidioc_s_selection = bttv_s_selection, 3118 .vidioc_g_fbuf = bttv_g_fbuf, 3119 .vidioc_s_fbuf = bttv_s_fbuf, 3120 .vidioc_overlay = bttv_overlay, 3121 .vidioc_g_parm = bttv_g_parm, 3122 .vidioc_g_frequency = bttv_g_frequency, 3123 .vidioc_s_frequency = bttv_s_frequency, 3124 .vidioc_log_status = bttv_log_status, 3125 .vidioc_querystd = bttv_querystd, 3126 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3127 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3128 #ifdef CONFIG_VIDEO_ADV_DEBUG 3129 .vidioc_g_register = bttv_g_register, 3130 .vidioc_s_register = bttv_s_register, 3131 #endif 3132 }; 3133 3134 static struct video_device bttv_video_template = { 3135 .fops = &bttv_fops, 3136 .ioctl_ops = &bttv_ioctl_ops, 3137 .tvnorms = BTTV_NORMS, 3138 }; 3139 3140 /* ----------------------------------------------------------------------- */ 3141 /* radio interface */ 3142 3143 static int radio_open(struct file *file) 3144 { 3145 struct video_device *vdev = video_devdata(file); 3146 struct bttv *btv = video_drvdata(file); 3147 struct bttv_fh *fh; 3148 3149 dprintk("open dev=%s\n", video_device_node_name(vdev)); 3150 3151 dprintk("%d: open called (radio)\n", btv->c.nr); 3152 3153 /* allocate per filehandle data */ 3154 fh = kmalloc(sizeof(*fh), GFP_KERNEL); 3155 if (unlikely(!fh)) 3156 return -ENOMEM; 3157 file->private_data = fh; 3158 *fh = btv->init; 3159 v4l2_fh_init(&fh->fh, vdev); 3160 3161 btv->radio_user++; 3162 audio_mute(btv, btv->mute); 3163 3164 v4l2_fh_add(&fh->fh); 3165 3166 return 0; 3167 } 3168 3169 static int radio_release(struct file *file) 3170 { 3171 struct bttv_fh *fh = file->private_data; 3172 struct bttv *btv = fh->btv; 3173 struct saa6588_command cmd; 3174 3175 file->private_data = NULL; 3176 v4l2_fh_del(&fh->fh); 3177 v4l2_fh_exit(&fh->fh); 3178 kfree(fh); 3179 3180 btv->radio_user--; 3181 3182 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd); 3183 3184 if (btv->radio_user == 0) 3185 btv->has_radio_tuner = 0; 3186 return 0; 3187 } 3188 3189 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 3190 { 3191 struct bttv_fh *fh = priv; 3192 struct bttv *btv = fh->btv; 3193 3194 if (0 != t->index) 3195 return -EINVAL; 3196 strscpy(t->name, "Radio", sizeof(t->name)); 3197 t->type = V4L2_TUNER_RADIO; 3198 radio_enable(btv); 3199 3200 bttv_call_all(btv, tuner, g_tuner, t); 3201 3202 if (btv->audio_mode_gpio) 3203 btv->audio_mode_gpio(btv, t, 0); 3204 3205 if (btv->has_tea575x) 3206 return snd_tea575x_g_tuner(&btv->tea, t); 3207 3208 return 0; 3209 } 3210 3211 static int radio_s_tuner(struct file *file, void *priv, 3212 const struct v4l2_tuner *t) 3213 { 3214 struct bttv_fh *fh = priv; 3215 struct bttv *btv = fh->btv; 3216 3217 if (0 != t->index) 3218 return -EINVAL; 3219 3220 radio_enable(btv); 3221 bttv_call_all(btv, tuner, s_tuner, t); 3222 return 0; 3223 } 3224 3225 static int radio_s_hw_freq_seek(struct file *file, void *priv, 3226 const struct v4l2_hw_freq_seek *a) 3227 { 3228 struct bttv_fh *fh = priv; 3229 struct bttv *btv = fh->btv; 3230 3231 if (btv->has_tea575x) 3232 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a); 3233 3234 return -ENOTTY; 3235 } 3236 3237 static int radio_enum_freq_bands(struct file *file, void *priv, 3238 struct v4l2_frequency_band *band) 3239 { 3240 struct bttv_fh *fh = priv; 3241 struct bttv *btv = fh->btv; 3242 3243 if (btv->has_tea575x) 3244 return snd_tea575x_enum_freq_bands(&btv->tea, band); 3245 3246 return -ENOTTY; 3247 } 3248 3249 static ssize_t radio_read(struct file *file, char __user *data, 3250 size_t count, loff_t *ppos) 3251 { 3252 struct bttv_fh *fh = file->private_data; 3253 struct bttv *btv = fh->btv; 3254 struct saa6588_command cmd; 3255 3256 cmd.block_count = count / 3; 3257 cmd.nonblocking = file->f_flags & O_NONBLOCK; 3258 cmd.buffer = data; 3259 cmd.instance = file; 3260 cmd.result = -ENODEV; 3261 radio_enable(btv); 3262 3263 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd); 3264 3265 return cmd.result; 3266 } 3267 3268 static __poll_t radio_poll(struct file *file, poll_table *wait) 3269 { 3270 struct bttv_fh *fh = file->private_data; 3271 struct bttv *btv = fh->btv; 3272 __poll_t req_events = poll_requested_events(wait); 3273 struct saa6588_command cmd; 3274 __poll_t res = 0; 3275 3276 if (v4l2_event_pending(&fh->fh)) 3277 res = EPOLLPRI; 3278 else if (req_events & EPOLLPRI) 3279 poll_wait(file, &fh->fh.wait, wait); 3280 radio_enable(btv); 3281 cmd.instance = file; 3282 cmd.event_list = wait; 3283 cmd.poll_mask = res; 3284 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd); 3285 3286 return cmd.poll_mask; 3287 } 3288 3289 static const struct v4l2_file_operations radio_fops = 3290 { 3291 .owner = THIS_MODULE, 3292 .open = radio_open, 3293 .read = radio_read, 3294 .release = radio_release, 3295 .unlocked_ioctl = video_ioctl2, 3296 .poll = radio_poll, 3297 }; 3298 3299 static const struct v4l2_ioctl_ops radio_ioctl_ops = { 3300 .vidioc_querycap = bttv_querycap, 3301 .vidioc_log_status = bttv_log_status, 3302 .vidioc_g_tuner = radio_g_tuner, 3303 .vidioc_s_tuner = radio_s_tuner, 3304 .vidioc_g_frequency = bttv_g_frequency, 3305 .vidioc_s_frequency = bttv_s_frequency, 3306 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek, 3307 .vidioc_enum_freq_bands = radio_enum_freq_bands, 3308 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 3309 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 3310 }; 3311 3312 static struct video_device radio_template = { 3313 .fops = &radio_fops, 3314 .ioctl_ops = &radio_ioctl_ops, 3315 }; 3316 3317 /* ----------------------------------------------------------------------- */ 3318 /* some debug code */ 3319 3320 static int bttv_risc_decode(u32 risc) 3321 { 3322 static char *instr[16] = { 3323 [ BT848_RISC_WRITE >> 28 ] = "write", 3324 [ BT848_RISC_SKIP >> 28 ] = "skip", 3325 [ BT848_RISC_WRITEC >> 28 ] = "writec", 3326 [ BT848_RISC_JUMP >> 28 ] = "jump", 3327 [ BT848_RISC_SYNC >> 28 ] = "sync", 3328 [ BT848_RISC_WRITE123 >> 28 ] = "write123", 3329 [ BT848_RISC_SKIP123 >> 28 ] = "skip123", 3330 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23", 3331 }; 3332 static int incr[16] = { 3333 [ BT848_RISC_WRITE >> 28 ] = 2, 3334 [ BT848_RISC_JUMP >> 28 ] = 2, 3335 [ BT848_RISC_SYNC >> 28 ] = 2, 3336 [ BT848_RISC_WRITE123 >> 28 ] = 5, 3337 [ BT848_RISC_SKIP123 >> 28 ] = 2, 3338 [ BT848_RISC_WRITE1S23 >> 28 ] = 3, 3339 }; 3340 static char *bits[] = { 3341 "be0", "be1", "be2", "be3/resync", 3342 "set0", "set1", "set2", "set3", 3343 "clr0", "clr1", "clr2", "clr3", 3344 "irq", "res", "eol", "sol", 3345 }; 3346 int i; 3347 3348 pr_cont("0x%08x [ %s", risc, 3349 instr[risc >> 28] ? instr[risc >> 28] : "INVALID"); 3350 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--) 3351 if (risc & (1 << (i + 12))) 3352 pr_cont(" %s", bits[i]); 3353 pr_cont(" count=%d ]\n", risc & 0xfff); 3354 return incr[risc >> 28] ? incr[risc >> 28] : 1; 3355 } 3356 3357 static void bttv_risc_disasm(struct bttv *btv, 3358 struct btcx_riscmem *risc) 3359 { 3360 unsigned int i,j,n; 3361 3362 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n", 3363 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma); 3364 for (i = 0; i < (risc->size >> 2); i += n) { 3365 pr_info("%s: 0x%lx: ", 3366 btv->c.v4l2_dev.name, 3367 (unsigned long)(risc->dma + (i<<2))); 3368 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i])); 3369 for (j = 1; j < n; j++) 3370 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n", 3371 btv->c.v4l2_dev.name, 3372 (unsigned long)(risc->dma + ((i+j)<<2)), 3373 risc->cpu[i+j], j); 3374 if (0 == risc->cpu[i]) 3375 break; 3376 } 3377 } 3378 3379 static void bttv_print_riscaddr(struct bttv *btv) 3380 { 3381 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma); 3382 pr_info(" vbi : o=%08llx e=%08llx\n", 3383 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, 3384 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0); 3385 pr_info(" cap : o=%08llx e=%08llx\n", 3386 btv->curr.top 3387 ? (unsigned long long)btv->curr.top->top.dma : 0, 3388 btv->curr.bottom 3389 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); 3390 pr_info(" scr : o=%08llx e=%08llx\n", 3391 btv->screen ? (unsigned long long)btv->screen->top.dma : 0, 3392 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0); 3393 bttv_risc_disasm(btv, &btv->main); 3394 } 3395 3396 /* ----------------------------------------------------------------------- */ 3397 /* irq handler */ 3398 3399 static char *irq_name[] = { 3400 "FMTCHG", // format change detected (525 vs. 625) 3401 "VSYNC", // vertical sync (new field) 3402 "HSYNC", // horizontal sync 3403 "OFLOW", // chroma/luma AGC overflow 3404 "HLOCK", // horizontal lock changed 3405 "VPRES", // video presence changed 3406 "6", "7", 3407 "I2CDONE", // hw irc operation finished 3408 "GPINT", // gpio port triggered irq 3409 "10", 3410 "RISCI", // risc instruction triggered irq 3411 "FBUS", // pixel data fifo dropped data (high pci bus latencies) 3412 "FTRGT", // pixel data fifo overrun 3413 "FDSR", // fifo data stream resyncronisation 3414 "PPERR", // parity error (data transfer) 3415 "RIPERR", // parity error (read risc instructions) 3416 "PABORT", // pci abort 3417 "OCERR", // risc instruction error 3418 "SCERR", // syncronisation error 3419 }; 3420 3421 static void bttv_print_irqbits(u32 print, u32 mark) 3422 { 3423 unsigned int i; 3424 3425 pr_cont("bits:"); 3426 for (i = 0; i < ARRAY_SIZE(irq_name); i++) { 3427 if (print & (1 << i)) 3428 pr_cont(" %s", irq_name[i]); 3429 if (mark & (1 << i)) 3430 pr_cont("*"); 3431 } 3432 } 3433 3434 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc) 3435 { 3436 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n", 3437 btv->c.nr, 3438 (unsigned long)btv->main.dma, 3439 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]), 3440 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]), 3441 (unsigned long)rc); 3442 3443 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) { 3444 pr_notice("%d: Oh, there (temporarily?) is no input signal. Ok, then this is harmless, don't worry ;)\n", 3445 btv->c.nr); 3446 return; 3447 } 3448 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n", 3449 btv->c.nr); 3450 pr_notice("%d: Lets try to catch the culprit red-handed ...\n", 3451 btv->c.nr); 3452 dump_stack(); 3453 } 3454 3455 static int 3456 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set) 3457 { 3458 struct bttv_buffer *item; 3459 3460 memset(set,0,sizeof(*set)); 3461 3462 /* capture request ? */ 3463 if (!list_empty(&btv->capture)) { 3464 set->frame_irq = 1; 3465 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3466 if (V4L2_FIELD_HAS_TOP(item->vb.field)) 3467 set->top = item; 3468 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field)) 3469 set->bottom = item; 3470 3471 /* capture request for other field ? */ 3472 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) && 3473 (item->vb.queue.next != &btv->capture)) { 3474 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue); 3475 /* Mike Isely <isely@pobox.com> - Only check 3476 * and set up the bottom field in the logic 3477 * below. Don't ever do the top field. This 3478 * of course means that if we set up the 3479 * bottom field in the above code that we'll 3480 * actually skip a field. But that's OK. 3481 * Having processed only a single buffer this 3482 * time, then the next time around the first 3483 * available buffer should be for a top field. 3484 * That will then cause us here to set up a 3485 * top then a bottom field in the normal way. 3486 * The alternative to this understanding is 3487 * that we set up the second available buffer 3488 * as a top field, but that's out of order 3489 * since this driver always processes the top 3490 * field first - the effect will be the two 3491 * buffers being returned in the wrong order, 3492 * with the second buffer also being delayed 3493 * by one field time (owing to the fifo nature 3494 * of videobuf). Worse still, we'll be stuck 3495 * doing fields out of order now every time 3496 * until something else causes a field to be 3497 * dropped. By effectively forcing a field to 3498 * drop this way then we always get back into 3499 * sync within a single frame time. (Out of 3500 * order fields can screw up deinterlacing 3501 * algorithms.) */ 3502 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) { 3503 if (NULL == set->bottom && 3504 V4L2_FIELD_BOTTOM == item->vb.field) { 3505 set->bottom = item; 3506 } 3507 if (NULL != set->top && NULL != set->bottom) 3508 set->top_irq = 2; 3509 } 3510 } 3511 } 3512 3513 /* screen overlay ? */ 3514 if (NULL != btv->screen) { 3515 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) { 3516 if (NULL == set->top && NULL == set->bottom) { 3517 set->top = btv->screen; 3518 set->bottom = btv->screen; 3519 } 3520 } else { 3521 if (V4L2_FIELD_TOP == btv->screen->vb.field && 3522 NULL == set->top) { 3523 set->top = btv->screen; 3524 } 3525 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field && 3526 NULL == set->bottom) { 3527 set->bottom = btv->screen; 3528 } 3529 } 3530 } 3531 3532 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n", 3533 btv->c.nr, set->top, set->bottom, 3534 btv->screen, set->frame_irq, set->top_irq); 3535 return 0; 3536 } 3537 3538 static void 3539 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup, 3540 struct bttv_buffer_set *curr, unsigned int state) 3541 { 3542 u64 ts = ktime_get_ns(); 3543 3544 if (wakeup->top == wakeup->bottom) { 3545 if (NULL != wakeup->top && curr->top != wakeup->top) { 3546 if (irq_debug > 1) 3547 pr_debug("%d: wakeup: both=%p\n", 3548 btv->c.nr, wakeup->top); 3549 wakeup->top->vb.ts = ts; 3550 wakeup->top->vb.field_count = btv->field_count; 3551 wakeup->top->vb.state = state; 3552 wake_up(&wakeup->top->vb.done); 3553 } 3554 } else { 3555 if (NULL != wakeup->top && curr->top != wakeup->top) { 3556 if (irq_debug > 1) 3557 pr_debug("%d: wakeup: top=%p\n", 3558 btv->c.nr, wakeup->top); 3559 wakeup->top->vb.ts = ts; 3560 wakeup->top->vb.field_count = btv->field_count; 3561 wakeup->top->vb.state = state; 3562 wake_up(&wakeup->top->vb.done); 3563 } 3564 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) { 3565 if (irq_debug > 1) 3566 pr_debug("%d: wakeup: bottom=%p\n", 3567 btv->c.nr, wakeup->bottom); 3568 wakeup->bottom->vb.ts = ts; 3569 wakeup->bottom->vb.field_count = btv->field_count; 3570 wakeup->bottom->vb.state = state; 3571 wake_up(&wakeup->bottom->vb.done); 3572 } 3573 } 3574 } 3575 3576 static void 3577 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup, 3578 unsigned int state) 3579 { 3580 if (NULL == wakeup) 3581 return; 3582 3583 wakeup->vb.ts = ktime_get_ns(); 3584 wakeup->vb.field_count = btv->field_count; 3585 wakeup->vb.state = state; 3586 wake_up(&wakeup->vb.done); 3587 } 3588 3589 static void bttv_irq_timeout(struct timer_list *t) 3590 { 3591 struct bttv *btv = from_timer(btv, t, timeout); 3592 struct bttv_buffer_set old,new; 3593 struct bttv_buffer *ovbi; 3594 struct bttv_buffer *item; 3595 unsigned long flags; 3596 3597 if (bttv_verbose) { 3598 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ", 3599 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total, 3600 btread(BT848_RISC_COUNT)); 3601 bttv_print_irqbits(btread(BT848_INT_STAT),0); 3602 pr_cont("\n"); 3603 } 3604 3605 spin_lock_irqsave(&btv->s_lock,flags); 3606 3607 /* deactivate stuff */ 3608 memset(&new,0,sizeof(new)); 3609 old = btv->curr; 3610 ovbi = btv->cvbi; 3611 btv->curr = new; 3612 btv->cvbi = NULL; 3613 btv->loop_irq = 0; 3614 bttv_buffer_activate_video(btv, &new); 3615 bttv_buffer_activate_vbi(btv, NULL); 3616 bttv_set_dma(btv, 0); 3617 3618 /* wake up */ 3619 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR); 3620 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR); 3621 3622 /* cancel all outstanding capture / vbi requests */ 3623 while (!list_empty(&btv->capture)) { 3624 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); 3625 list_del(&item->vb.queue); 3626 item->vb.state = VIDEOBUF_ERROR; 3627 wake_up(&item->vb.done); 3628 } 3629 while (!list_empty(&btv->vcapture)) { 3630 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3631 list_del(&item->vb.queue); 3632 item->vb.state = VIDEOBUF_ERROR; 3633 wake_up(&item->vb.done); 3634 } 3635 3636 btv->errors++; 3637 spin_unlock_irqrestore(&btv->s_lock,flags); 3638 } 3639 3640 static void 3641 bttv_irq_wakeup_top(struct bttv *btv) 3642 { 3643 struct bttv_buffer *wakeup = btv->curr.top; 3644 3645 if (NULL == wakeup) 3646 return; 3647 3648 spin_lock(&btv->s_lock); 3649 btv->curr.top_irq = 0; 3650 btv->curr.top = NULL; 3651 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); 3652 3653 wakeup->vb.ts = ktime_get_ns(); 3654 wakeup->vb.field_count = btv->field_count; 3655 wakeup->vb.state = VIDEOBUF_DONE; 3656 wake_up(&wakeup->vb.done); 3657 spin_unlock(&btv->s_lock); 3658 } 3659 3660 static inline int is_active(struct btcx_riscmem *risc, u32 rc) 3661 { 3662 if (rc < risc->dma) 3663 return 0; 3664 if (rc > risc->dma + risc->size) 3665 return 0; 3666 return 1; 3667 } 3668 3669 static void 3670 bttv_irq_switch_video(struct bttv *btv) 3671 { 3672 struct bttv_buffer_set new; 3673 struct bttv_buffer_set old; 3674 dma_addr_t rc; 3675 3676 spin_lock(&btv->s_lock); 3677 3678 /* new buffer set */ 3679 bttv_irq_next_video(btv, &new); 3680 rc = btread(BT848_RISC_COUNT); 3681 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) || 3682 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) { 3683 btv->framedrop++; 3684 if (debug_latency) 3685 bttv_irq_debug_low_latency(btv, rc); 3686 spin_unlock(&btv->s_lock); 3687 return; 3688 } 3689 3690 /* switch over */ 3691 old = btv->curr; 3692 btv->curr = new; 3693 btv->loop_irq &= ~1; 3694 bttv_buffer_activate_video(btv, &new); 3695 bttv_set_dma(btv, 0); 3696 3697 /* switch input */ 3698 if (UNSET != btv->new_input) { 3699 video_mux(btv,btv->new_input); 3700 btv->new_input = UNSET; 3701 } 3702 3703 /* wake up finished buffers */ 3704 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE); 3705 spin_unlock(&btv->s_lock); 3706 } 3707 3708 static void 3709 bttv_irq_switch_vbi(struct bttv *btv) 3710 { 3711 struct bttv_buffer *new = NULL; 3712 struct bttv_buffer *old; 3713 u32 rc; 3714 3715 spin_lock(&btv->s_lock); 3716 3717 if (!list_empty(&btv->vcapture)) 3718 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); 3719 old = btv->cvbi; 3720 3721 rc = btread(BT848_RISC_COUNT); 3722 if (NULL != old && (is_active(&old->top, rc) || 3723 is_active(&old->bottom, rc))) { 3724 btv->framedrop++; 3725 if (debug_latency) 3726 bttv_irq_debug_low_latency(btv, rc); 3727 spin_unlock(&btv->s_lock); 3728 return; 3729 } 3730 3731 /* switch */ 3732 btv->cvbi = new; 3733 btv->loop_irq &= ~4; 3734 bttv_buffer_activate_vbi(btv, new); 3735 bttv_set_dma(btv, 0); 3736 3737 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE); 3738 spin_unlock(&btv->s_lock); 3739 } 3740 3741 static irqreturn_t bttv_irq(int irq, void *dev_id) 3742 { 3743 u32 stat,astat; 3744 u32 dstat; 3745 int count; 3746 struct bttv *btv; 3747 int handled = 0; 3748 3749 btv=(struct bttv *)dev_id; 3750 3751 count=0; 3752 while (1) { 3753 /* get/clear interrupt status bits */ 3754 stat=btread(BT848_INT_STAT); 3755 astat=stat&btread(BT848_INT_MASK); 3756 if (!astat) 3757 break; 3758 handled = 1; 3759 btwrite(stat,BT848_INT_STAT); 3760 3761 /* get device status bits */ 3762 dstat=btread(BT848_DSTATUS); 3763 3764 if (irq_debug) { 3765 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ", 3766 btv->c.nr, count, btv->field_count, 3767 stat>>28, btread(BT848_RISC_COUNT)); 3768 bttv_print_irqbits(stat,astat); 3769 if (stat & BT848_INT_HLOCK) 3770 pr_cont(" HLOC => %s", 3771 dstat & BT848_DSTATUS_HLOC 3772 ? "yes" : "no"); 3773 if (stat & BT848_INT_VPRES) 3774 pr_cont(" PRES => %s", 3775 dstat & BT848_DSTATUS_PRES 3776 ? "yes" : "no"); 3777 if (stat & BT848_INT_FMTCHG) 3778 pr_cont(" NUML => %s", 3779 dstat & BT848_DSTATUS_NUML 3780 ? "625" : "525"); 3781 pr_cont("\n"); 3782 } 3783 3784 if (astat&BT848_INT_VSYNC) 3785 btv->field_count++; 3786 3787 if ((astat & BT848_INT_GPINT) && btv->remote) { 3788 bttv_input_irq(btv); 3789 } 3790 3791 if (astat & BT848_INT_I2CDONE) { 3792 btv->i2c_done = stat; 3793 wake_up(&btv->i2c_queue); 3794 } 3795 3796 if ((astat & BT848_INT_RISCI) && (stat & (4<<28))) 3797 bttv_irq_switch_vbi(btv); 3798 3799 if ((astat & BT848_INT_RISCI) && (stat & (2<<28))) 3800 bttv_irq_wakeup_top(btv); 3801 3802 if ((astat & BT848_INT_RISCI) && (stat & (1<<28))) 3803 bttv_irq_switch_video(btv); 3804 3805 if ((astat & BT848_INT_HLOCK) && btv->opt_automute) 3806 /* trigger automute */ 3807 audio_mux_gpio(btv, btv->audio_input, btv->mute); 3808 3809 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) { 3810 pr_info("%d: %s%s @ %08x,", 3811 btv->c.nr, 3812 (astat & BT848_INT_SCERR) ? "SCERR" : "", 3813 (astat & BT848_INT_OCERR) ? "OCERR" : "", 3814 btread(BT848_RISC_COUNT)); 3815 bttv_print_irqbits(stat,astat); 3816 pr_cont("\n"); 3817 if (bttv_debug) 3818 bttv_print_riscaddr(btv); 3819 } 3820 if (fdsr && astat & BT848_INT_FDSR) { 3821 pr_info("%d: FDSR @ %08x\n", 3822 btv->c.nr, btread(BT848_RISC_COUNT)); 3823 if (bttv_debug) 3824 bttv_print_riscaddr(btv); 3825 } 3826 3827 count++; 3828 if (count > 4) { 3829 3830 if (count > 8 || !(astat & BT848_INT_GPINT)) { 3831 btwrite(0, BT848_INT_MASK); 3832 3833 pr_err("%d: IRQ lockup, cleared int mask [", 3834 btv->c.nr); 3835 } else { 3836 pr_err("%d: IRQ lockup, clearing GPINT from int mask [", 3837 btv->c.nr); 3838 3839 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT), 3840 BT848_INT_MASK); 3841 } 3842 3843 bttv_print_irqbits(stat,astat); 3844 3845 pr_cont("]\n"); 3846 } 3847 } 3848 btv->irq_total++; 3849 if (handled) 3850 btv->irq_me++; 3851 return IRQ_RETVAL(handled); 3852 } 3853 3854 3855 /* ----------------------------------------------------------------------- */ 3856 /* initialization */ 3857 3858 static void vdev_init(struct bttv *btv, 3859 struct video_device *vfd, 3860 const struct video_device *template, 3861 const char *type_name) 3862 { 3863 *vfd = *template; 3864 vfd->v4l2_dev = &btv->c.v4l2_dev; 3865 vfd->release = video_device_release_empty; 3866 video_set_drvdata(vfd, btv); 3867 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)", 3868 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "", 3869 type_name, bttv_tvcards[btv->c.type].name); 3870 if (btv->tuner_type == TUNER_ABSENT) { 3871 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); 3872 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); 3873 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); 3874 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); 3875 } 3876 } 3877 3878 static void bttv_unregister_video(struct bttv *btv) 3879 { 3880 video_unregister_device(&btv->video_dev); 3881 video_unregister_device(&btv->vbi_dev); 3882 video_unregister_device(&btv->radio_dev); 3883 } 3884 3885 /* register video4linux devices */ 3886 static int bttv_register_video(struct bttv *btv) 3887 { 3888 if (no_overlay > 0) 3889 pr_notice("Overlay support disabled\n"); 3890 3891 /* video */ 3892 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video"); 3893 btv->video_dev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | 3894 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; 3895 if (btv->tuner_type != TUNER_ABSENT) 3896 btv->video_dev.device_caps |= V4L2_CAP_TUNER; 3897 if (no_overlay <= 0) 3898 btv->video_dev.device_caps |= V4L2_CAP_VIDEO_OVERLAY; 3899 3900 if (video_register_device(&btv->video_dev, VFL_TYPE_VIDEO, 3901 video_nr[btv->c.nr]) < 0) 3902 goto err; 3903 pr_info("%d: registered device %s\n", 3904 btv->c.nr, video_device_node_name(&btv->video_dev)); 3905 if (device_create_file(&btv->video_dev.dev, 3906 &dev_attr_card)<0) { 3907 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr); 3908 goto err; 3909 } 3910 3911 /* vbi */ 3912 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi"); 3913 btv->vbi_dev.device_caps = V4L2_CAP_VBI_CAPTURE | V4L2_CAP_READWRITE | 3914 V4L2_CAP_STREAMING | V4L2_CAP_TUNER; 3915 if (btv->tuner_type != TUNER_ABSENT) 3916 btv->vbi_dev.device_caps |= V4L2_CAP_TUNER; 3917 3918 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI, 3919 vbi_nr[btv->c.nr]) < 0) 3920 goto err; 3921 pr_info("%d: registered device %s\n", 3922 btv->c.nr, video_device_node_name(&btv->vbi_dev)); 3923 3924 if (!btv->has_radio) 3925 return 0; 3926 /* radio */ 3927 vdev_init(btv, &btv->radio_dev, &radio_template, "radio"); 3928 btv->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER; 3929 if (btv->has_saa6588) 3930 btv->radio_dev.device_caps |= V4L2_CAP_READWRITE | 3931 V4L2_CAP_RDS_CAPTURE; 3932 if (btv->has_tea575x) 3933 btv->radio_dev.device_caps |= V4L2_CAP_HW_FREQ_SEEK; 3934 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler; 3935 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO, 3936 radio_nr[btv->c.nr]) < 0) 3937 goto err; 3938 pr_info("%d: registered device %s\n", 3939 btv->c.nr, video_device_node_name(&btv->radio_dev)); 3940 3941 /* all done */ 3942 return 0; 3943 3944 err: 3945 bttv_unregister_video(btv); 3946 return -1; 3947 } 3948 3949 3950 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ 3951 /* response on cards with no firmware is not enabled by OF */ 3952 static void pci_set_command(struct pci_dev *dev) 3953 { 3954 #if defined(__powerpc__) 3955 unsigned int cmd; 3956 3957 pci_read_config_dword(dev, PCI_COMMAND, &cmd); 3958 cmd = (cmd | PCI_COMMAND_MEMORY ); 3959 pci_write_config_dword(dev, PCI_COMMAND, cmd); 3960 #endif 3961 } 3962 3963 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) 3964 { 3965 struct v4l2_frequency init_freq = { 3966 .tuner = 0, 3967 .type = V4L2_TUNER_ANALOG_TV, 3968 .frequency = 980, 3969 }; 3970 int result; 3971 unsigned char lat; 3972 struct bttv *btv; 3973 struct v4l2_ctrl_handler *hdl; 3974 3975 if (bttv_num == BTTV_MAX) 3976 return -ENOMEM; 3977 pr_info("Bt8xx card found (%d)\n", bttv_num); 3978 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL); 3979 if (btv == NULL) { 3980 pr_err("out of memory\n"); 3981 return -ENOMEM; 3982 } 3983 btv->c.nr = bttv_num; 3984 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name), 3985 "bttv%d", btv->c.nr); 3986 3987 /* initialize structs / fill in defaults */ 3988 mutex_init(&btv->lock); 3989 spin_lock_init(&btv->s_lock); 3990 spin_lock_init(&btv->gpio_lock); 3991 init_waitqueue_head(&btv->i2c_queue); 3992 INIT_LIST_HEAD(&btv->c.subs); 3993 INIT_LIST_HEAD(&btv->capture); 3994 INIT_LIST_HEAD(&btv->vcapture); 3995 3996 timer_setup(&btv->timeout, bttv_irq_timeout, 0); 3997 3998 btv->i2c_rc = -1; 3999 btv->tuner_type = UNSET; 4000 btv->new_input = UNSET; 4001 btv->has_radio=radio[btv->c.nr]; 4002 4003 /* pci stuff (init, get irq/mmio, ... */ 4004 btv->c.pci = dev; 4005 btv->id = dev->device; 4006 if (pci_enable_device(dev)) { 4007 pr_warn("%d: Can't enable device\n", btv->c.nr); 4008 result = -EIO; 4009 goto free_mem; 4010 } 4011 if (dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) { 4012 pr_warn("%d: No suitable DMA available\n", btv->c.nr); 4013 result = -EIO; 4014 goto free_mem; 4015 } 4016 if (!request_mem_region(pci_resource_start(dev,0), 4017 pci_resource_len(dev,0), 4018 btv->c.v4l2_dev.name)) { 4019 pr_warn("%d: can't request iomem (0x%llx)\n", 4020 btv->c.nr, 4021 (unsigned long long)pci_resource_start(dev, 0)); 4022 result = -EBUSY; 4023 goto free_mem; 4024 } 4025 pci_set_master(dev); 4026 pci_set_command(dev); 4027 4028 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev); 4029 if (result < 0) { 4030 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr); 4031 goto fail0; 4032 } 4033 hdl = &btv->ctrl_handler; 4034 v4l2_ctrl_handler_init(hdl, 20); 4035 btv->c.v4l2_dev.ctrl_handler = hdl; 4036 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6); 4037 4038 btv->revision = dev->revision; 4039 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); 4040 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n", 4041 bttv_num, btv->id, btv->revision, pci_name(dev), 4042 btv->c.pci->irq, lat, 4043 (unsigned long long)pci_resource_start(dev, 0)); 4044 schedule(); 4045 4046 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000); 4047 if (NULL == btv->bt848_mmio) { 4048 pr_err("%d: ioremap() failed\n", btv->c.nr); 4049 result = -EIO; 4050 goto fail1; 4051 } 4052 4053 /* identify card */ 4054 bttv_idcard(btv); 4055 4056 /* disable irqs, register irq handler */ 4057 btwrite(0, BT848_INT_MASK); 4058 result = request_irq(btv->c.pci->irq, bttv_irq, 4059 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv); 4060 if (result < 0) { 4061 pr_err("%d: can't get IRQ %d\n", 4062 bttv_num, btv->c.pci->irq); 4063 goto fail1; 4064 } 4065 4066 if (0 != bttv_handle_chipset(btv)) { 4067 result = -EIO; 4068 goto fail2; 4069 } 4070 4071 /* init options from insmod args */ 4072 btv->opt_combfilter = combfilter; 4073 bttv_ctrl_combfilter.def = combfilter; 4074 bttv_ctrl_lumafilter.def = lumafilter; 4075 btv->opt_automute = automute; 4076 bttv_ctrl_automute.def = automute; 4077 bttv_ctrl_agc_crush.def = agc_crush; 4078 btv->opt_vcr_hack = vcr_hack; 4079 bttv_ctrl_vcr_hack.def = vcr_hack; 4080 bttv_ctrl_whitecrush_upper.def = whitecrush_upper; 4081 bttv_ctrl_whitecrush_lower.def = whitecrush_lower; 4082 btv->opt_uv_ratio = uv_ratio; 4083 bttv_ctrl_uv_ratio.def = uv_ratio; 4084 bttv_ctrl_full_luma.def = full_luma_range; 4085 bttv_ctrl_coring.def = coring; 4086 4087 /* fill struct bttv with some useful defaults */ 4088 btv->init.btv = btv; 4089 btv->init.ov.w.width = 320; 4090 btv->init.ov.w.height = 240; 4091 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 4092 btv->init.width = 320; 4093 btv->init.height = 240; 4094 btv->init.ov.w.width = 320; 4095 btv->init.ov.w.height = 240; 4096 btv->init.ov.field = V4L2_FIELD_INTERLACED; 4097 btv->input = 0; 4098 4099 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4100 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768); 4101 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4102 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00); 4103 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4104 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768); 4105 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4106 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0); 4107 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4108 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768); 4109 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4110 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc); 4111 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4112 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); 4113 if (btv->volume_gpio) 4114 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, 4115 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00); 4116 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL); 4117 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL); 4118 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL); 4119 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL); 4120 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL); 4121 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL); 4122 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL); 4123 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL); 4124 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL); 4125 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL); 4126 4127 /* initialize hardware */ 4128 if (bttv_gpio) 4129 bttv_gpio_tracking(btv,"pre-init"); 4130 4131 bttv_risc_init_main(btv); 4132 init_bt848(btv); 4133 4134 /* gpio */ 4135 btwrite(0x00, BT848_GPIO_REG_INP); 4136 btwrite(0x00, BT848_GPIO_OUT_EN); 4137 if (bttv_verbose) 4138 bttv_gpio_tracking(btv,"init"); 4139 4140 /* needs to be done before i2c is registered */ 4141 bttv_init_card1(btv); 4142 4143 /* register i2c + gpio */ 4144 init_bttv_i2c(btv); 4145 4146 /* some card-specific stuff (needs working i2c) */ 4147 bttv_init_card2(btv); 4148 bttv_init_tuner(btv); 4149 if (btv->tuner_type != TUNER_ABSENT) { 4150 bttv_set_frequency(btv, &init_freq); 4151 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */ 4152 } 4153 btv->std = V4L2_STD_PAL; 4154 init_irqreg(btv); 4155 if (!bttv_tvcards[btv->c.type].no_video) 4156 v4l2_ctrl_handler_setup(hdl); 4157 if (hdl->error) { 4158 result = hdl->error; 4159 goto fail2; 4160 } 4161 /* mute device */ 4162 audio_mute(btv, 1); 4163 4164 /* register video4linux + input */ 4165 if (!bttv_tvcards[btv->c.type].no_video) { 4166 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl, 4167 v4l2_ctrl_radio_filter, false); 4168 if (btv->radio_ctrl_handler.error) { 4169 result = btv->radio_ctrl_handler.error; 4170 goto fail2; 4171 } 4172 set_input(btv, 0, btv->tvnorm); 4173 bttv_crop_reset(&btv->crop[0], btv->tvnorm); 4174 btv->crop[1] = btv->crop[0]; /* current = default */ 4175 disclaim_vbi_lines(btv); 4176 disclaim_video_lines(btv); 4177 bttv_register_video(btv); 4178 } 4179 4180 /* add subdevices and autoload dvb-bt8xx if needed */ 4181 if (bttv_tvcards[btv->c.type].has_dvb) { 4182 bttv_sub_add_device(&btv->c, "dvb"); 4183 request_modules(btv); 4184 } 4185 4186 if (!disable_ir) { 4187 init_bttv_i2c_ir(btv); 4188 bttv_input_init(btv); 4189 } 4190 4191 /* everything is fine */ 4192 bttv_num++; 4193 return 0; 4194 4195 fail2: 4196 free_irq(btv->c.pci->irq,btv); 4197 4198 fail1: 4199 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4200 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4201 v4l2_device_unregister(&btv->c.v4l2_dev); 4202 4203 fail0: 4204 if (btv->bt848_mmio) 4205 iounmap(btv->bt848_mmio); 4206 release_mem_region(pci_resource_start(btv->c.pci,0), 4207 pci_resource_len(btv->c.pci,0)); 4208 pci_disable_device(btv->c.pci); 4209 4210 free_mem: 4211 bttvs[btv->c.nr] = NULL; 4212 kfree(btv); 4213 return result; 4214 } 4215 4216 static void bttv_remove(struct pci_dev *pci_dev) 4217 { 4218 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); 4219 struct bttv *btv = to_bttv(v4l2_dev); 4220 4221 if (bttv_verbose) 4222 pr_info("%d: unloading\n", btv->c.nr); 4223 4224 if (bttv_tvcards[btv->c.type].has_dvb) 4225 flush_request_modules(btv); 4226 4227 /* shutdown everything (DMA+IRQs) */ 4228 btand(~15, BT848_GPIO_DMA_CTL); 4229 btwrite(0, BT848_INT_MASK); 4230 btwrite(~0x0, BT848_INT_STAT); 4231 btwrite(0x0, BT848_GPIO_OUT_EN); 4232 if (bttv_gpio) 4233 bttv_gpio_tracking(btv,"cleanup"); 4234 4235 /* tell gpio modules we are leaving ... */ 4236 btv->shutdown=1; 4237 bttv_input_fini(btv); 4238 bttv_sub_del_devices(&btv->c); 4239 4240 /* unregister i2c_bus + input */ 4241 fini_bttv_i2c(btv); 4242 4243 /* unregister video4linux */ 4244 bttv_unregister_video(btv); 4245 4246 /* free allocated memory */ 4247 v4l2_ctrl_handler_free(&btv->ctrl_handler); 4248 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler); 4249 btcx_riscmem_free(btv->c.pci,&btv->main); 4250 4251 /* free resources */ 4252 free_irq(btv->c.pci->irq,btv); 4253 iounmap(btv->bt848_mmio); 4254 release_mem_region(pci_resource_start(btv->c.pci,0), 4255 pci_resource_len(btv->c.pci,0)); 4256 pci_disable_device(btv->c.pci); 4257 4258 v4l2_device_unregister(&btv->c.v4l2_dev); 4259 bttvs[btv->c.nr] = NULL; 4260 kfree(btv); 4261 4262 return; 4263 } 4264 4265 static int __maybe_unused bttv_suspend(struct device *dev) 4266 { 4267 struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); 4268 struct bttv *btv = to_bttv(v4l2_dev); 4269 struct bttv_buffer_set idle; 4270 unsigned long flags; 4271 4272 dprintk("%d: suspend\n", btv->c.nr); 4273 4274 /* stop dma + irqs */ 4275 spin_lock_irqsave(&btv->s_lock,flags); 4276 memset(&idle, 0, sizeof(idle)); 4277 btv->state.video = btv->curr; 4278 btv->state.vbi = btv->cvbi; 4279 btv->state.loop_irq = btv->loop_irq; 4280 btv->curr = idle; 4281 btv->loop_irq = 0; 4282 bttv_buffer_activate_video(btv, &idle); 4283 bttv_buffer_activate_vbi(btv, NULL); 4284 bttv_set_dma(btv, 0); 4285 btwrite(0, BT848_INT_MASK); 4286 spin_unlock_irqrestore(&btv->s_lock,flags); 4287 4288 /* save bt878 state */ 4289 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN); 4290 btv->state.gpio_data = gpio_read(); 4291 4292 btv->state.disabled = 1; 4293 return 0; 4294 } 4295 4296 static int __maybe_unused bttv_resume(struct device *dev) 4297 { 4298 struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); 4299 struct bttv *btv = to_bttv(v4l2_dev); 4300 unsigned long flags; 4301 4302 dprintk("%d: resume\n", btv->c.nr); 4303 4304 btv->state.disabled = 0; 4305 4306 /* restore bt878 state */ 4307 bttv_reinit_bt848(btv); 4308 gpio_inout(0xffffff, btv->state.gpio_enable); 4309 gpio_write(btv->state.gpio_data); 4310 4311 /* restart dma */ 4312 spin_lock_irqsave(&btv->s_lock,flags); 4313 btv->curr = btv->state.video; 4314 btv->cvbi = btv->state.vbi; 4315 btv->loop_irq = btv->state.loop_irq; 4316 bttv_buffer_activate_video(btv, &btv->curr); 4317 bttv_buffer_activate_vbi(btv, btv->cvbi); 4318 bttv_set_dma(btv, 0); 4319 spin_unlock_irqrestore(&btv->s_lock,flags); 4320 return 0; 4321 } 4322 4323 static const struct pci_device_id bttv_pci_tbl[] = { 4324 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0}, 4325 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0}, 4326 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0}, 4327 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0}, 4328 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0}, 4329 {0,} 4330 }; 4331 4332 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl); 4333 4334 static SIMPLE_DEV_PM_OPS(bttv_pm_ops, 4335 bttv_suspend, 4336 bttv_resume); 4337 4338 static struct pci_driver bttv_pci_driver = { 4339 .name = "bttv", 4340 .id_table = bttv_pci_tbl, 4341 .probe = bttv_probe, 4342 .remove = bttv_remove, 4343 .driver.pm = &bttv_pm_ops, 4344 }; 4345 4346 static int __init bttv_init_module(void) 4347 { 4348 int ret; 4349 4350 bttv_num = 0; 4351 4352 pr_info("driver version %s loaded\n", BTTV_VERSION); 4353 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) 4354 gbuffers = 2; 4355 if (gbufsize > BTTV_MAX_FBUF) 4356 gbufsize = BTTV_MAX_FBUF; 4357 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; 4358 if (bttv_verbose) 4359 pr_info("using %d buffers with %dk (%d pages) each for capture\n", 4360 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT); 4361 4362 bttv_check_chipset(); 4363 4364 ret = bus_register(&bttv_sub_bus_type); 4365 if (ret < 0) { 4366 pr_warn("bus_register error: %d\n", ret); 4367 return ret; 4368 } 4369 ret = pci_register_driver(&bttv_pci_driver); 4370 if (ret < 0) 4371 bus_unregister(&bttv_sub_bus_type); 4372 4373 return ret; 4374 } 4375 4376 static void __exit bttv_cleanup_module(void) 4377 { 4378 pci_unregister_driver(&bttv_pci_driver); 4379 bus_unregister(&bttv_sub_bus_type); 4380 } 4381 4382 module_init(bttv_init_module); 4383 module_exit(bttv_cleanup_module); 4384