| 1 | /* TODO: clean up/fix CC code */ |
| 2 | |
| 3 | #ifdef HAVE_XORG_CONFIG_H |
| 4 | #include <xorg-config.h> |
| 5 | #endif |
| 6 | |
| 7 | #include <stdlib.h> |
| 8 | #include <string.h> |
| 9 | #include <stdio.h> |
| 10 | |
| 11 | #include "xf86.h" |
| 12 | #include "xf86i2c.h" |
| 13 | #include "bt829.h" |
| 14 | #include "i2c_def.h" |
| 15 | |
| 16 | /* Changing the following settings (especially VCROP) may */ |
| 17 | /* require modifying code that calls this driver. */ |
| 18 | #define HCROP 0 /* amount to crop from the left and right edges */ |
| 19 | #define VCROP 0 /* amount to crop from the top and bottom edges */ |
| 20 | |
| 21 | #define BTVERSION (bt->id>>4) |
| 22 | |
| 23 | #define H(X) ( ((X)>>8) & 0xFF ) |
| 24 | #define L(X) ( (X) & 0xFF ) |
| 25 | |
| 26 | #define LIMIT(X,A,B) (((X)<(A)) ? (A) : ((X)>(B)) ? (B) : (X) ) |
| 27 | |
| 28 | /* Bt829 family chip ID's */ |
| 29 | #define BT815 0x02 |
| 30 | #define BT817 0x06 |
| 31 | #define BT819 0x07 |
| 32 | #define BT827 0x0C |
| 33 | #define BT829 0x0E |
| 34 | |
| 35 | /* Bt829 registers */ |
| 36 | #define STATUS 0x00 /* Device Status */ |
| 37 | #define IFORM 0x01 /* Input Format */ |
| 38 | #define TDEC 0x02 /* Temporal Decimation */ |
| 39 | #define CROP 0x03 /* MSB Cropping */ |
| 40 | #define VDELAY_LO 0x04 /* Vertical Delay */ |
| 41 | #define VACTIVE_LO 0x05 /* Vertical Active */ |
| 42 | #define HDELAY_LO 0x06 /* Horizontal Delay */ |
| 43 | #define HACTIVE_LO 0x07 /* Horizontal Active */ |
| 44 | #define HSCALE_HI 0x08 /* Horizontal Scaling */ |
| 45 | #define HSCALE_LO 0x09 /* Horizontal Scaling */ |
| 46 | #define BRIGHT 0x0A /* Brightness Control */ |
| 47 | #define CONTROL 0x0B /* Miscellaneous Control */ |
| 48 | #define CONTRAST_LO 0x0C /* Luma Gain (Contrast) */ |
| 49 | #define SAT_U_LO 0x0D /* Chroma (U) Gain (Saturation) */ |
| 50 | #define SAT_V_LO 0x0E /* Chroma (V) Gain (Saturation) */ |
| 51 | #define HUE 0x0F /* Hue Control */ |
| 52 | #define SCLOOP 0x10 /* SC Loop Control */ |
| 53 | #define WC_UP 0x11 /* White Crush Up Count */ |
| 54 | #define OFORM 0x12 /* Output Format */ |
| 55 | #define VSCALE_HI 0x13 /* Vertical Scaling */ |
| 56 | #define VSCALE_LO 0x14 /* Vertical Scaling */ |
| 57 | #define TEST 0x15 /* Test Control */ |
| 58 | #define VPOLE 0x16 /* Video Timing Polarity */ |
| 59 | #define IDCODE 0x17 /* ID Code */ |
| 60 | #define ADELAY 0x18 /* AGC Delay */ |
| 61 | #define BDELAY 0x19 /* Burst Gate Delay */ |
| 62 | #define ADC 0x1A /* ADC Interface */ |
| 63 | #define VTC 0x1B /* Video Timing Control */ |
| 64 | #define CC_STATUS 0x1C /* Extended Data Services/Closed Capt Status */ |
| 65 | #define CC_DATA 0x1D /* Extended Data Services/Closed Capt Data */ |
| 66 | #define WC_DN 0x1E /* White Crush Down Count */ |
| 67 | #define SRESET 0x1F /* Software Reset */ |
| 68 | #define P_IO 0x3F /* Programmable I/O */ |
| 69 | |
| 70 | static CARD8 |
| 71 | btread(BT829Ptr bt, CARD8 reg) |
| 72 | { |
| 73 | CARD8 v; |
| 74 | |
| 75 | I2C_WriteRead(&(bt->d), ®, 1, &v, 1); |
| 76 | |
| 77 | return v; |
| 78 | } |
| 79 | |
| 80 | static void |
| 81 | btwrite(BT829Ptr bt, CARD8 reg, CARD8 val) |
| 82 | { |
| 83 | CARD8 data[2]; |
| 84 | |
| 85 | data[0] = reg; |
| 86 | data[1] = val; |
| 87 | I2C_WriteRead(&(bt->d), data, 2, NULL, 0); |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * Register access |
| 92 | */ |
| 93 | static void |
| 94 | btwrite_status(BT829Ptr bt) |
| 95 | { /* STATUS */ |
| 96 | btwrite(bt, STATUS, 0x00); /* clear */ |
| 97 | } |
| 98 | |
| 99 | static void |
| 100 | btwrite_iform(BT829Ptr bt) |
| 101 | { /* IFORM */ |
| 102 | int xtsel; |
| 103 | |
| 104 | switch (bt->format) { |
| 105 | case BT829_NTSC: |
| 106 | case BT829_NTSC_JAPAN: |
| 107 | case BT829_PAL_M: |
| 108 | case BT829_PAL_N_COMB: /* gatos says xtsel = 2 */ |
| 109 | xtsel = 1; |
| 110 | break; |
| 111 | case BT829_PAL: |
| 112 | case BT829_PAL_N: |
| 113 | case BT829_SECAM: |
| 114 | xtsel = 2; |
| 115 | break; |
| 116 | default: /* shouldn't get here */ |
| 117 | xtsel = 3; /* hardware default */ |
| 118 | break; |
| 119 | } |
| 120 | |
| 121 | btwrite(bt, IFORM, (bt->mux << 5) | (xtsel << 3) | bt->format); |
| 122 | } |
| 123 | |
| 124 | static void |
| 125 | btwrite_tdec(BT829Ptr bt) |
| 126 | { /* TDEC */ |
| 127 | /* use default */ |
| 128 | } |
| 129 | |
| 130 | static void |
| 131 | btwrite_crop(BT829Ptr bt) |
| 132 | { /* CROP */ |
| 133 | btwrite(bt, CROP, (H(bt->vdelay) << 6) | (H(bt->vactive) << 4) | |
| 134 | (H(bt->hdelay) << 2) | H(bt->width)); |
| 135 | } |
| 136 | |
| 137 | static void |
| 138 | btwrite_vdelay_lo(BT829Ptr bt) |
| 139 | { /* VDELAY_LO */ |
| 140 | btwrite(bt, VDELAY_LO, L(bt->vdelay)); |
| 141 | } |
| 142 | |
| 143 | static void |
| 144 | btwrite_vactive_lo(BT829Ptr bt) |
| 145 | { /* VACTIVE_LO */ |
| 146 | btwrite(bt, VACTIVE_LO, L(bt->vactive)); |
| 147 | } |
| 148 | |
| 149 | static void |
| 150 | btwrite_hdelay_lo(BT829Ptr bt) |
| 151 | { /* HDELAY_LO */ |
| 152 | btwrite(bt, HDELAY_LO, L(bt->hdelay)); |
| 153 | } |
| 154 | |
| 155 | static void |
| 156 | btwrite_hactive_lo(BT829Ptr bt) |
| 157 | { /* HACTIVE_LO */ |
| 158 | btwrite(bt, HACTIVE_LO, L(bt->width)); |
| 159 | } |
| 160 | |
| 161 | static void |
| 162 | btwrite_hscale_hi(BT829Ptr bt) |
| 163 | { /* HSCALE_HI */ |
| 164 | btwrite(bt, HSCALE_HI, H(bt->hscale)); |
| 165 | } |
| 166 | |
| 167 | static void |
| 168 | btwrite_hscale_lo(BT829Ptr bt) |
| 169 | { /* HSCALE_LO */ |
| 170 | btwrite(bt, HSCALE_LO, L(bt->hscale)); |
| 171 | } |
| 172 | |
| 173 | static void |
| 174 | btwrite_bright(BT829Ptr bt) |
| 175 | { /* BRIGHT */ |
| 176 | btwrite(bt, BRIGHT, bt->brightness); |
| 177 | } |
| 178 | |
| 179 | static void |
| 180 | btwrite_control(BT829Ptr bt) |
| 181 | { /* CONTROL */ |
| 182 | int ldec; |
| 183 | |
| 184 | /* The data sheet says ldec should always be 0 for SECAM */ |
| 185 | /* but the picture quality is better with ldec = 1 */ |
| 186 | ldec = (bt->width > 360); /* gatos says 384 */ |
| 187 | |
| 188 | btwrite(bt, CONTROL, ((bt->mux == bt->svideo_mux) ? 0xC0 : 0x00) | /* LNOTCH and COMP */ |
| 189 | (ldec << 5) | (H(bt->contrast) << 2) | (H(bt->sat_u) << 1) | H(bt-> |
| 190 | sat_v)); |
| 191 | } |
| 192 | |
| 193 | static void |
| 194 | btwrite_contrast_lo(BT829Ptr bt) |
| 195 | { /* CONTRAST_LO */ |
| 196 | btwrite(bt, CONTRAST_LO, L(bt->contrast)); |
| 197 | } |
| 198 | |
| 199 | static void |
| 200 | btwrite_sat_u_lo(BT829Ptr bt) |
| 201 | { /* SAT_U_LO */ |
| 202 | btwrite(bt, SAT_U_LO, L(bt->sat_u)); |
| 203 | } |
| 204 | |
| 205 | static void |
| 206 | btwrite_sat_v_lo(BT829Ptr bt) |
| 207 | { /* SAT_V_LO */ |
| 208 | btwrite(bt, SAT_V_LO, L(bt->sat_v)); |
| 209 | } |
| 210 | |
| 211 | static void |
| 212 | btwrite_hue(BT829Ptr bt) |
| 213 | { /* HUE */ |
| 214 | btwrite(bt, HUE, bt->hue); |
| 215 | } |
| 216 | |
| 217 | static void |
| 218 | btwrite_scloop(BT829Ptr bt) |
| 219 | { /* SCLOOP */ |
| 220 | if (BTVERSION >= BT827) { |
| 221 | btwrite(bt, SCLOOP, (bt->format == BT829_SECAM) ? 0x10 : 0x00 /* QCIF or AUTO */ |
| 222 | ); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | static void |
| 227 | btwrite_wc_up(BT829Ptr bt) |
| 228 | { /* WC_UP */ |
| 229 | if (BTVERSION >= BT827) { |
| 230 | /* use default */ |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | static void |
| 235 | btwrite_oform(BT829Ptr bt) |
| 236 | { /* OFORM */ |
| 237 | btwrite(bt, OFORM, (bt->code << 3) | (bt->len << 2) | 0x02 /* RANGE = 0, CORE = 0, VBI_FRAME = 0, OES = 2 (default) */ |
| 238 | ); |
| 239 | } |
| 240 | |
| 241 | static void |
| 242 | btwrite_vscale_hi(BT829Ptr bt) |
| 243 | { /* VSCALE_HI */ |
| 244 | btwrite(bt, VSCALE_HI, H(bt->vscale) | 0x60 /* YCOMB = 0, COMB = 1, INT = 1 (default) */ |
| 245 | ); |
| 246 | } |
| 247 | |
| 248 | static void |
| 249 | btwrite_vscale_lo(BT829Ptr bt) |
| 250 | { /* VSCALE_LO */ |
| 251 | btwrite(bt, VSCALE_LO, L(bt->vscale)); |
| 252 | } |
| 253 | |
| 254 | /* TEST should not be written to */ |
| 255 | |
| 256 | static void |
| 257 | btwrite_vpole(BT829Ptr bt) |
| 258 | { /* VPOLE */ |
| 259 | btwrite(bt, VPOLE, (bt->out_en << 7)); |
| 260 | } |
| 261 | |
| 262 | /* IDCODE is read only */ |
| 263 | |
| 264 | static void |
| 265 | btwrite_adelay(BT829Ptr bt) |
| 266 | { /* ADELAY */ |
| 267 | switch (bt->format) { |
| 268 | case BT829_NTSC: |
| 269 | case BT829_NTSC_JAPAN: |
| 270 | case BT829_PAL_M: |
| 271 | btwrite(bt, ADELAY, 104); |
| 272 | break; |
| 273 | case BT829_PAL: |
| 274 | case BT829_PAL_N: |
| 275 | case BT829_SECAM: |
| 276 | case BT829_PAL_N_COMB: |
| 277 | btwrite(bt, ADELAY, 127); |
| 278 | break; |
| 279 | default: /* shouldn't get here */ |
| 280 | btwrite(bt, ADELAY, 104); /* hardware default */ |
| 281 | break; |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | static void |
| 286 | btwrite_bdelay(BT829Ptr bt) |
| 287 | { /* BDELAY */ |
| 288 | switch (bt->format) { |
| 289 | case BT829_NTSC: |
| 290 | case BT829_NTSC_JAPAN: |
| 291 | case BT829_PAL_M: |
| 292 | btwrite(bt, BDELAY, 93); |
| 293 | break; |
| 294 | case BT829_PAL: |
| 295 | case BT829_PAL_N: |
| 296 | case BT829_PAL_N_COMB: |
| 297 | btwrite(bt, BDELAY, 114); |
| 298 | break; |
| 299 | case BT829_SECAM: |
| 300 | btwrite(bt, BDELAY, 160); |
| 301 | break; |
| 302 | default: /* shouldn't get here */ |
| 303 | btwrite(bt, BDELAY, 93); /* hardware default */ |
| 304 | break; |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | static void |
| 309 | btwrite_adc(BT829Ptr bt) |
| 310 | { /* ADC */ |
| 311 | btwrite(bt, ADC, bt->mux == bt->svideo_mux ? 0x80 : 0x82); /* CSLEEP = 0 or 1 */ |
| 312 | } |
| 313 | |
| 314 | static void |
| 315 | btwrite_vtc(BT829Ptr bt) |
| 316 | { /* VTC */ |
| 317 | int vfilt = 0; /* hardware default */ |
| 318 | |
| 319 | if (BTVERSION > BT827) { /* gatos says >= BT827 */ |
| 320 | switch (bt->format) { |
| 321 | case BT829_NTSC: |
| 322 | case BT829_NTSC_JAPAN: |
| 323 | case BT829_PAL_M: |
| 324 | case BT829_PAL_N_COMB: /* gatos groups with BT829_PAL */ |
| 325 | if (bt->width <= 360) |
| 326 | vfilt = 1; /* gatos says <= 240 */ |
| 327 | if (bt->width <= 180) |
| 328 | vfilt = 2; /* gatos says <= 120 */ |
| 329 | if (bt->width <= 90) |
| 330 | vfilt = 3; /* gatos says <= 60 */ |
| 331 | break; |
| 332 | case BT829_PAL: |
| 333 | case BT829_PAL_N: |
| 334 | case BT829_SECAM: |
| 335 | if (bt->width <= 384) |
| 336 | vfilt = 1; |
| 337 | if (bt->width <= 192) |
| 338 | vfilt = 2; |
| 339 | if (bt->width <= 96) |
| 340 | vfilt = 3; |
| 341 | break; |
| 342 | default: /* shouldn't get here */ |
| 343 | break; /* use hardware default */ |
| 344 | } |
| 345 | btwrite(bt, VTC, (bt->vbien << 4) | (bt->vbifmt << 3) | vfilt); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | static void |
| 350 | btwrite_cc_status(BT829Ptr bt) |
| 351 | { /* CC_STATUS *//* FIXME: ATI specific */ |
| 352 | if (BTVERSION >= BT827) { |
| 353 | if (bt->ccmode == 0) |
| 354 | btwrite(bt, CC_STATUS, 0x00); |
| 355 | /* 0x40 is activate to set the CCVALID line. Not required yet */ |
| 356 | else |
| 357 | btwrite(bt, CC_STATUS, (bt->ccmode << 4) | 0x40); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /* CC_DATA is read only */ |
| 362 | |
| 363 | static void |
| 364 | btwrite_wc_dn(BT829Ptr bt) |
| 365 | { /* WC_DN */ |
| 366 | if (BTVERSION >= BT827) { |
| 367 | /* use default */ |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | static void |
| 372 | bt_reset(BT829Ptr bt) |
| 373 | { /* SRESET */ |
| 374 | btwrite(bt, SRESET, 0x0); /* Reset all registers */ |
| 375 | } |
| 376 | |
| 377 | static void |
| 378 | btwrite_p_io(BT829Ptr bt) |
| 379 | { /* P_IO */ |
| 380 | if (BTVERSION >= BT827) { |
| 381 | btwrite(bt, P_IO, bt->p_io); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /* |
| 386 | * Deal with dependencies |
| 387 | */ |
| 388 | static void |
| 389 | propagate_changes(BT829Ptr bt) |
| 390 | { |
| 391 | CARD16 hdelay, unscaled_hdelay, vdelay, hscale, vscale; |
| 392 | int htotal, vactive; |
| 393 | |
| 394 | switch (bt->format) { |
| 395 | case BT829_NTSC: |
| 396 | case BT829_NTSC_JAPAN: |
| 397 | case BT829_PAL_M: |
| 398 | vdelay = 22; |
| 399 | htotal = 754; |
| 400 | vactive = 480; |
| 401 | unscaled_hdelay = 135; |
| 402 | break; |
| 403 | case BT829_PAL: |
| 404 | case BT829_PAL_N: |
| 405 | vdelay = (bt->tunertype == 5) ? 34 : 22; |
| 406 | htotal = 922; |
| 407 | vactive = 576; |
| 408 | unscaled_hdelay = 186; |
| 409 | break; |
| 410 | case BT829_SECAM: |
| 411 | vdelay = 34; |
| 412 | htotal = 922; |
| 413 | vactive = 576; |
| 414 | unscaled_hdelay = 186; |
| 415 | break; |
| 416 | case BT829_PAL_N_COMB: |
| 417 | vdelay = (bt->tunertype == 5) ? 34 : 22; /* windows says 22 */ |
| 418 | htotal = 754; /* gatos and windows say 922 */ |
| 419 | vactive = 576; |
| 420 | unscaled_hdelay = 135; /* gatos and windows say 186 */ |
| 421 | break; |
| 422 | default: /* shouldn't get here */ |
| 423 | vdelay = 22; /* hardware default */ |
| 424 | htotal = 754; |
| 425 | vactive = 480; /* hardware default */ |
| 426 | unscaled_hdelay = 135; |
| 427 | break; |
| 428 | } |
| 429 | |
| 430 | bt->htotal = htotal; /* Used for error checking in bt829_SetCaptSize */ |
| 431 | |
| 432 | hscale = 4096 * htotal / (bt->width + 2 * HCROP) - 4096; |
| 433 | hdelay = |
| 434 | (HCROP + (bt->width + 2 * HCROP) * unscaled_hdelay / htotal) & 0x3FE; |
| 435 | |
| 436 | vactive = vactive - 2 * VCROP; |
| 437 | vdelay = vdelay + VCROP; |
| 438 | vscale = (0x10000 - (512 * vactive / bt->height - 512)) & 0x1FFF; |
| 439 | |
| 440 | if ((hdelay != bt->hdelay) || (vdelay != bt->vdelay) || |
| 441 | (vactive != bt->vactive) || (hscale != bt->hscale) || |
| 442 | (vscale != bt->vscale)) { |
| 443 | bt->hdelay = hdelay; |
| 444 | bt->vdelay = vdelay; |
| 445 | bt->vactive = vactive; |
| 446 | bt->hscale = hscale; |
| 447 | bt->vscale = vscale; |
| 448 | btwrite_crop(bt); |
| 449 | btwrite_vdelay_lo(bt); |
| 450 | btwrite_vactive_lo(bt); |
| 451 | btwrite_hdelay_lo(bt); |
| 452 | btwrite_hscale_hi(bt); |
| 453 | btwrite_hscale_lo(bt); |
| 454 | btwrite_control(bt); |
| 455 | btwrite_vscale_hi(bt); |
| 456 | btwrite_vscale_lo(bt); |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | static void |
| 461 | write_all(BT829Ptr bt) |
| 462 | { |
| 463 | bt_reset(bt); |
| 464 | propagate_changes(bt); /* ensure consistency */ |
| 465 | btwrite_iform(bt); |
| 466 | btwrite_tdec(bt); |
| 467 | btwrite_crop(bt); |
| 468 | btwrite_vdelay_lo(bt); |
| 469 | btwrite_vactive_lo(bt); |
| 470 | btwrite_hdelay_lo(bt); |
| 471 | btwrite_hactive_lo(bt); |
| 472 | btwrite_hscale_hi(bt); |
| 473 | btwrite_hscale_lo(bt); |
| 474 | btwrite_bright(bt); |
| 475 | btwrite_control(bt); |
| 476 | btwrite_contrast_lo(bt); |
| 477 | btwrite_sat_u_lo(bt); |
| 478 | btwrite_sat_v_lo(bt); |
| 479 | btwrite_hue(bt); |
| 480 | btwrite_scloop(bt); |
| 481 | btwrite_wc_up(bt); |
| 482 | btwrite_oform(bt); |
| 483 | btwrite_vscale_hi(bt); |
| 484 | btwrite_vscale_lo(bt); |
| 485 | btwrite_vpole(bt); |
| 486 | btwrite_adelay(bt); |
| 487 | btwrite_bdelay(bt); |
| 488 | btwrite_adc(bt); |
| 489 | btwrite_vtc(bt); |
| 490 | /* btwrite_cc_status(bt); *//* FIXME: CC code needs cleaning */ |
| 491 | btwrite_wc_dn(bt); |
| 492 | btwrite_p_io(bt); |
| 493 | } |
| 494 | |
| 495 | /* |
| 496 | * Public functions |
| 497 | */ |
| 498 | BT829Ptr |
| 499 | bt829_Detect(I2CBusPtr b, I2CSlaveAddr addr) |
| 500 | { |
| 501 | BT829Ptr bt; |
| 502 | I2CByte a; |
| 503 | |
| 504 | bt = calloc(1, sizeof(BT829Rec)); |
| 505 | if (bt == NULL) |
| 506 | return NULL; |
| 507 | bt->d.DevName = strdup("BT829 video decoder"); |
| 508 | bt->d.SlaveAddr = addr; |
| 509 | bt->d.pI2CBus = b; |
| 510 | bt->d.NextDev = NULL; |
| 511 | bt->d.StartTimeout = b->StartTimeout; |
| 512 | bt->d.BitTimeout = b->BitTimeout; |
| 513 | bt->d.AcknTimeout = b->AcknTimeout; |
| 514 | bt->d.ByteTimeout = b->ByteTimeout; |
| 515 | |
| 516 | if (!I2C_WriteRead(&(bt->d), NULL, 0, &a, 1)) { |
| 517 | free(bt); |
| 518 | return NULL; |
| 519 | } |
| 520 | |
| 521 | bt->id = btread(bt, IDCODE); |
| 522 | |
| 523 | free(bt->d.DevName); |
| 524 | bt->d.DevName = calloc(200, sizeof(char)); |
| 525 | switch (BTVERSION) { |
| 526 | case BT815: |
| 527 | sprintf(bt->d.DevName, "bt815a video decoder, revision %d", |
| 528 | bt->id & 0xf); |
| 529 | break; |
| 530 | case BT817: |
| 531 | sprintf(bt->d.DevName, "bt817a video decoder, revision %d", |
| 532 | bt->id & 0xf); |
| 533 | break; |
| 534 | case BT819: |
| 535 | sprintf(bt->d.DevName, "bt819a video decoder, revision %d", |
| 536 | bt->id & 0xf); |
| 537 | break; |
| 538 | case BT827: |
| 539 | sprintf(bt->d.DevName, "bt827a/b video decoder, revision %d", |
| 540 | bt->id & 0xf); |
| 541 | break; |
| 542 | case BT829: |
| 543 | sprintf(bt->d.DevName, "bt829a/b video decoder, revision %d", |
| 544 | bt->id & 0xf); |
| 545 | break; |
| 546 | default: |
| 547 | sprintf(bt->d.DevName, |
| 548 | "bt8xx/unknown video decoder version %d, revision %d", |
| 549 | bt->id >> 4, bt->id & 0xf); |
| 550 | break; |
| 551 | } |
| 552 | |
| 553 | /* set default parameters */ |
| 554 | if (!I2CDevInit(&(bt->d))) { |
| 555 | free(bt); |
| 556 | return NULL; |
| 557 | } |
| 558 | |
| 559 | bt->tunertype = 1; |
| 560 | |
| 561 | bt->brightness = 0; /* hardware default */ |
| 562 | bt->ccmode = 0; |
| 563 | bt->code = 0; /* hardware default */ |
| 564 | bt->contrast = 216; /* hardware default */ |
| 565 | bt->format = BT829_NTSC; |
| 566 | bt->height = 480; /* hardware default for vactive */ |
| 567 | bt->hue = 0; /* hardware default */ |
| 568 | bt->len = 1; /* hardware default */ |
| 569 | bt->mux = BT829_MUX0; /* hardware default */ |
| 570 | bt->out_en = 0; /* hardware default */ |
| 571 | bt->p_io = 0; /* hardware default */ |
| 572 | bt->sat_u = 254; /* hardware default */ |
| 573 | bt->sat_v = 180; /* hardware default */ |
| 574 | bt->vbien = 0; /* hardware default */ |
| 575 | bt->vbifmt = 0; /* hardware default */ |
| 576 | bt->width = 640; /* hardware default for hactive */ |
| 577 | |
| 578 | bt->hdelay = 120; /* hardware default */ |
| 579 | bt->hscale = 684; /* hardware default */ |
| 580 | bt->vactive = 480; /* hardware default */ |
| 581 | bt->vdelay = 22; /* hardware default */ |
| 582 | bt->vscale = 0; /* hardware default */ |
| 583 | |
| 584 | bt->htotal = 754; /* NTSC */ |
| 585 | bt->svideo_mux = 0; /* no s-video */ |
| 586 | |
| 587 | return bt; |
| 588 | } |
| 589 | |
| 590 | int |
| 591 | bt829_ATIInit(BT829Ptr bt) |
| 592 | { |
| 593 | bt->code = 1; |
| 594 | bt->len = 0; |
| 595 | bt->vbien = 1; |
| 596 | bt->vbifmt = 1; |
| 597 | bt->svideo_mux = BT829_MUX1; |
| 598 | |
| 599 | write_all(bt); |
| 600 | |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | int |
| 605 | bt829_SetFormat(BT829Ptr bt, CARD8 format) |
| 606 | { |
| 607 | if ((format < 1) || (format > 7)) |
| 608 | return -1; |
| 609 | if ((BTVERSION <= BT819) && (format != BT829_NTSC) && (format != BT829_PAL)) |
| 610 | return -1; |
| 611 | if (format == bt->format) |
| 612 | return 0; |
| 613 | bt->format = format; |
| 614 | propagate_changes(bt); |
| 615 | btwrite_iform(bt); |
| 616 | btwrite_scloop(bt); |
| 617 | btwrite_adelay(bt); |
| 618 | btwrite_bdelay(bt); |
| 619 | btwrite_vtc(bt); |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | int |
| 624 | bt829_SetMux(BT829Ptr bt, CARD8 mux) |
| 625 | { |
| 626 | if ((mux < 1) || (mux > 3)) |
| 627 | return -1; |
| 628 | if (mux == bt->mux) |
| 629 | return 0; |
| 630 | bt->mux = mux; |
| 631 | /* propagate_changes(bt); *//* no dependencies */ |
| 632 | btwrite_iform(bt); |
| 633 | btwrite_control(bt); |
| 634 | btwrite_adc(bt); |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | void |
| 639 | bt829_SetBrightness(BT829Ptr bt, int brightness) |
| 640 | { |
| 641 | brightness = LIMIT(brightness, -1000, 999); /* ensure -128 <= brightness <= 127 below */ |
| 642 | brightness = (128 * brightness) / 1000; |
| 643 | if (brightness == bt->brightness) |
| 644 | return; |
| 645 | bt->brightness = brightness; |
| 646 | /* propagate_changes(bt); *//* no dependencies */ |
| 647 | btwrite_bright(bt); |
| 648 | } |
| 649 | |
| 650 | void |
| 651 | bt829_SetContrast(BT829Ptr bt, int contrast) |
| 652 | { |
| 653 | contrast = LIMIT(contrast, -1000, 1000); |
| 654 | contrast = (216 * (contrast + 1000)) / 1000; |
| 655 | if (contrast == bt->contrast) |
| 656 | return; |
| 657 | bt->contrast = contrast; |
| 658 | /* propagate_changes(bt); *//* no dependencies */ |
| 659 | btwrite_control(bt); |
| 660 | btwrite_contrast_lo(bt); |
| 661 | } |
| 662 | |
| 663 | void |
| 664 | bt829_SetSaturation(BT829Ptr bt, int saturation) |
| 665 | { |
| 666 | CARD16 sat_u, sat_v; |
| 667 | |
| 668 | saturation = LIMIT(saturation, -1000, 1000); |
| 669 | sat_u = (254 * (saturation + 1000)) / 1000; |
| 670 | sat_v = (180 * (saturation + 1000)) / 1000; |
| 671 | if ((sat_u == bt->sat_u) && (sat_v == bt->sat_v)) |
| 672 | return; |
| 673 | bt->sat_u = sat_u; |
| 674 | bt->sat_v = sat_v; |
| 675 | /* propagate_changes(bt); *//* no dependencies */ |
| 676 | btwrite_control(bt); |
| 677 | btwrite_sat_u_lo(bt); |
| 678 | btwrite_sat_v_lo(bt); |
| 679 | } |
| 680 | |
| 681 | void |
| 682 | bt829_SetTint(BT829Ptr bt, int hue) |
| 683 | { |
| 684 | hue = LIMIT(hue, -1000, 999); /* ensure -128 <= hue <= 127 below */ |
| 685 | hue = (128 * hue) / 1000; |
| 686 | if (hue == bt->hue) |
| 687 | return; |
| 688 | bt->hue = hue; |
| 689 | /* propagate_changes(bt); *//* no dependencies */ |
| 690 | btwrite_hue(bt); |
| 691 | } |
| 692 | |
| 693 | int |
| 694 | bt829_SetCaptSize(BT829Ptr bt, int width, int height) |
| 695 | { |
| 696 | if ((width > bt->htotal - 2 * HCROP) || |
| 697 | (16 * width < bt->htotal - 32 * HCROP)) |
| 698 | return -1; |
| 699 | if ((height > bt->vactive) || (16 * height < bt->vactive)) |
| 700 | return -1; |
| 701 | if ((width == bt->width) && (height == bt->height)) |
| 702 | return 0; |
| 703 | bt->width = width; |
| 704 | bt->height = height; |
| 705 | propagate_changes(bt); |
| 706 | btwrite_crop(bt); |
| 707 | btwrite_hactive_lo(bt); |
| 708 | btwrite_control(bt); |
| 709 | btwrite_vtc(bt); |
| 710 | return 0; |
| 711 | } |
| 712 | |
| 713 | int |
| 714 | bt829_SetCC(BT829Ptr bt) |
| 715 | { /* FIXME: should take ccmode as a parameter */ |
| 716 | if (BTVERSION < BT827) |
| 717 | return -1; /* can't do it */ |
| 718 | /* propagate_changes(bt); *//* no dependencies */ |
| 719 | btwrite_cc_status(bt); |
| 720 | /* we write to STATUS to reset the CCVALID flag */ |
| 721 | if (bt->ccmode != 0) |
| 722 | btwrite_status(bt); |
| 723 | return 0; |
| 724 | } |
| 725 | |
| 726 | void |
| 727 | bt829_SetOUT_EN(BT829Ptr bt, BOOL out_en) |
| 728 | { |
| 729 | out_en = (out_en != 0); |
| 730 | if (out_en == bt->out_en) |
| 731 | return; |
| 732 | bt->out_en = out_en; |
| 733 | /* propagate_changes(bt); *//* no dependencies */ |
| 734 | btwrite_vpole(bt); |
| 735 | } |
| 736 | |
| 737 | void |
| 738 | bt829_SetP_IO(BT829Ptr bt, CARD8 p_io) |
| 739 | { |
| 740 | if (p_io == bt->p_io) |
| 741 | return; |
| 742 | bt->p_io = p_io; |
| 743 | /* propagate_changes(bt); *//* no dependencies */ |
| 744 | btwrite_p_io(bt); |
| 745 | } |
| 746 | |
| 747 | #define BTREAD(R) btread(bt,(R)) |
| 748 | |
| 749 | #if 0 |
| 750 | |
| 751 | void |
| 752 | bt829_getCCdata(BT829Ptr bt, struct CCdata *data) |
| 753 | { |
| 754 | CARD8 status; |
| 755 | |
| 756 | data->num_valid = 0; |
| 757 | /* wait for buffer to be half full (means 8/16 bytes) |
| 758 | * either 4 (one of CC/EDS) or 2 (both CC/EDS) frames */ |
| 759 | if (!(BTREAD(STATUS) & 0x04)) |
| 760 | return; /* could comment this line */ |
| 761 | for (; data->num_valid < CC_FIFO_SIZE; data->num_valid++) { |
| 762 | status = BTREAD(CC_STATUS); |
| 763 | if (!(status & 0x04)) |
| 764 | break; |
| 765 | data->data[data->num_valid] = BTREAD(CC_DATA) & 0x7f; |
| 766 | /* stripped high bit (parity) */ |
| 767 | data->status[data->num_valid] = (CCS_EDS * ((status & 0x02) >> 1)) | |
| 768 | (CCS_HIGH * (status & 0x01)) | |
| 769 | (CCS_OVER * ((status & 0x08) >> 3)) | |
| 770 | (CCS_PAR * ((status & 0x80) >> 7)); |
| 771 | } |
| 772 | btwrite(bt, STATUS, 0x00); /* Reset CCVALID status bit */ |
| 773 | return; |
| 774 | } |
| 775 | |
| 776 | #endif |
| 777 | |
| 778 | /* ------------------------------------------------------------------------ */ |
| 779 | /* Debug and report routines */ |
| 780 | |
| 781 | #define DUMPREG(REG) \ |
| 782 | xf86DrvMsg(bt->d.pI2CBus->scrnIndex,X_INFO," %-12s (0x%02X) = 0x%02X\n", \ |
| 783 | #REG,REG,BTREAD(REG)) |
| 784 | |
| 785 | /*static void bt829_dumpregs(BT829Ptr bt) |
| 786 | { |
| 787 | DUMPREG(STATUS); |
| 788 | DUMPREG(IFORM); |
| 789 | DUMPREG(TDEC); |
| 790 | DUMPREG(CROP); |
| 791 | DUMPREG(VDELAY_LO); |
| 792 | DUMPREG(VACTIVE_LO); |
| 793 | DUMPREG(HDELAY_LO); |
| 794 | DUMPREG(HACTIVE_LO); |
| 795 | DUMPREG(HSCALE_HI); |
| 796 | DUMPREG(HSCALE_LO); |
| 797 | DUMPREG(BRIGHT); |
| 798 | DUMPREG(CONTROL); |
| 799 | DUMPREG(CONTRAST_LO); |
| 800 | DUMPREG(SAT_U_LO); |
| 801 | DUMPREG(SAT_V_LO); |
| 802 | DUMPREG(HUE); |
| 803 | if (BTVERSION >= BT827) { |
| 804 | DUMPREG(SCLOOP); |
| 805 | DUMPREG(WC_UP) ; } |
| 806 | DUMPREG(OFORM); |
| 807 | DUMPREG(VSCALE_HI); |
| 808 | DUMPREG(VSCALE_LO); |
| 809 | DUMPREG(TEST); |
| 810 | DUMPREG(VPOLE); |
| 811 | DUMPREG(IDCODE); |
| 812 | DUMPREG(ADELAY); |
| 813 | DUMPREG(BDELAY); |
| 814 | DUMPREG(ADC); |
| 815 | if (BTVERSION >= BT827) { |
| 816 | DUMPREG(VTC); |
| 817 | DUMPREG(CC_STATUS); |
| 818 | DUMPREG(CC_DATA); |
| 819 | DUMPREG(WC_DN); |
| 820 | DUMPREG(P_IO) ; } |
| 821 | }*/ |