drivers/gpu/drm/i915/intel_tv.c

   1 /*
   2  * Copyright © 2006-2008 Intel Corporation
   3  *   Jesse Barnes <jesse.barnes@intel.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Eric Anholt <eric@anholt.net>
  26  *
  27  */
  28
  29 /** @file
  30  * Integrated TV-out support for the 915GM and 945GM.
  31  */
  32
  33 #include "drmP.h"
  34 #include "drm.h"
  35 #include "drm_crtc.h"
  36 #include "drm_edid.h"
  37 #include "intel_drv.h"
  38 #include "i915_drm.h"
  39 #include "i915_drv.h"
  40
  41 enum tv_margin {
  42         TV_MARGIN_LEFT, TV_MARGIN_TOP,
  43         TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
  44 };
  45
  46 /** Private structure for the integrated TV support */
  47 struct intel_tv {
  48         struct intel_encoder base;
  49
  50         int type;
  51         const char *tv_format;
  52         int margin[4];
  53         u32 save_TV_H_CTL_1;
  54         u32 save_TV_H_CTL_2;
  55         u32 save_TV_H_CTL_3;
  56         u32 save_TV_V_CTL_1;
  57         u32 save_TV_V_CTL_2;
  58         u32 save_TV_V_CTL_3;
  59         u32 save_TV_V_CTL_4;
  60         u32 save_TV_V_CTL_5;
  61         u32 save_TV_V_CTL_6;
  62         u32 save_TV_V_CTL_7;
  63         u32 save_TV_SC_CTL_1, save_TV_SC_CTL_2, save_TV_SC_CTL_3;
  64
  65         u32 save_TV_CSC_Y;
  66         u32 save_TV_CSC_Y2;
  67         u32 save_TV_CSC_U;
  68         u32 save_TV_CSC_U2;
  69         u32 save_TV_CSC_V;
  70         u32 save_TV_CSC_V2;
  71         u32 save_TV_CLR_KNOBS;
  72         u32 save_TV_CLR_LEVEL;
  73         u32 save_TV_WIN_POS;
  74         u32 save_TV_WIN_SIZE;
  75         u32 save_TV_FILTER_CTL_1;
  76         u32 save_TV_FILTER_CTL_2;
  77         u32 save_TV_FILTER_CTL_3;
  78
  79         u32 save_TV_H_LUMA[60];
  80         u32 save_TV_H_CHROMA[60];
  81         u32 save_TV_V_LUMA[43];
  82         u32 save_TV_V_CHROMA[43];
  83
  84         u32 save_TV_DAC;
  85         u32 save_TV_CTL;
  86 };
  87
  88 struct video_levels {
  89         int blank, black, burst;
  90 };
  91
  92 struct color_conversion {
  93         u16 ry, gy, by, ay;
  94         u16 ru, gu, bu, au;
  95         u16 rv, gv, bv, av;
  96 };
  97
  98 static const u32 filter_table[] = {
  99         0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
 100         0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
 101         0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
 102         0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
 103         0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
 104         0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
 105         0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
 106         0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
 107         0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
 108         0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
 109         0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
 110         0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
 111         0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
 112         0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
 113         0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
 114         0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
 115         0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
 116         0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
 117         0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
 118         0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
 119         0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
 120         0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
 121         0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
 122         0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
 123         0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
 124         0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
 125         0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
 126         0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
 127         0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
 128         0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
 129         0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
 130         0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
 131         0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
 132         0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
 133         0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
 134         0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
 135         0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
 136         0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
 137         0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
 138         0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
 139         0x28003100, 0x28002F00, 0x00003100, 0x36403000,
 140         0x2D002CC0, 0x30003640, 0x2D0036C0,
 141         0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
 142         0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
 143         0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
 144         0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
 145         0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
 146         0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
 147         0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
 148         0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
 149         0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
 150         0x28003100, 0x28002F00, 0x00003100,
 151 };
 152
 153 /*
 154  * Color conversion values have 3 separate fixed point formats:
 155  *
 156  * 10 bit fields (ay, au)
 157  *   1.9 fixed point (b.bbbbbbbbb)
 158  * 11 bit fields (ry, by, ru, gu, gv)
 159  *   exp.mantissa (ee.mmmmmmmmm)
 160  *   ee = 00 = 10^-1 (0.mmmmmmmmm)
 161  *   ee = 01 = 10^-2 (0.0mmmmmmmmm)
 162  *   ee = 10 = 10^-3 (0.00mmmmmmmmm)
 163  *   ee = 11 = 10^-4 (0.000mmmmmmmmm)
 164  * 12 bit fields (gy, rv, bu)
 165  *   exp.mantissa (eee.mmmmmmmmm)
 166  *   eee = 000 = 10^-1 (0.mmmmmmmmm)
 167  *   eee = 001 = 10^-2 (0.0mmmmmmmmm)
 168  *   eee = 010 = 10^-3 (0.00mmmmmmmmm)
 169  *   eee = 011 = 10^-4 (0.000mmmmmmmmm)
 170  *   eee = 100 = reserved
 171  *   eee = 101 = reserved
 172  *   eee = 110 = reserved
 173  *   eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
 174  *
 175  * Saturation and contrast are 8 bits, with their own representation:
 176  * 8 bit field (saturation, contrast)
 177  *   exp.mantissa (ee.mmmmmm)
 178  *   ee = 00 = 10^-1 (0.mmmmmm)
 179  *   ee = 01 = 10^0 (m.mmmmm)
 180  *   ee = 10 = 10^1 (mm.mmmm)
 181  *   ee = 11 = 10^2 (mmm.mmm)
 182  *
 183  * Simple conversion function:
 184  *
 185  * static u32
 186  * float_to_csc_11(float f)
 187  * {
 188  *     u32 exp;
 189  *     u32 mant;
 190  *     u32 ret;
 191  *
 192  *     if (f < 0)
 193  *         f = -f;
 194  *
 195  *     if (f >= 1) {
 196  *         exp = 0x7;
 197  *         mant = 1 << 8;
 198  *     } else {
 199  *         for (exp = 0; exp < 3 && f < 0.5; exp++)
 200  *             f *= 2.0;
 201  *         mant = (f * (1 << 9) + 0.5);
 202  *         if (mant >= (1 << 9))
 203  *             mant = (1 << 9) - 1;
 204  *     }
 205  *     ret = (exp << 9) | mant;
 206  *     return ret;
 207  * }
 208  */
 209
 210 /*
 211  * Behold, magic numbers!  If we plant them they might grow a big
 212  * s-video cable to the sky... or something.
 213  *
 214  * Pre-converted to appropriate hex value.
 215  */
 216
 217 /*
 218  * PAL & NTSC values for composite & s-video connections
 219  */
 220 static const struct color_conversion ntsc_m_csc_composite = {
 221         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 222         .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 223         .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 224 };
 225
 226 static const struct video_levels ntsc_m_levels_composite = {
 227         .blank = 225, .black = 267, .burst = 113,
 228 };
 229
 230 static const struct color_conversion ntsc_m_csc_svideo = {
 231         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 232         .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 233         .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 234 };
 235
 236 static const struct video_levels ntsc_m_levels_svideo = {
 237         .blank = 266, .black = 316, .burst = 133,
 238 };
 239
 240 static const struct color_conversion ntsc_j_csc_composite = {
 241         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
 242         .ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
 243         .rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
 244 };
 245
 246 static const struct video_levels ntsc_j_levels_composite = {
 247         .blank = 225, .black = 225, .burst = 113,
 248 };
 249
 250 static const struct color_conversion ntsc_j_csc_svideo = {
 251         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
 252         .ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
 253         .rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
 254 };
 255
 256 static const struct video_levels ntsc_j_levels_svideo = {
 257         .blank = 266, .black = 266, .burst = 133,
 258 };
 259
 260 static const struct color_conversion pal_csc_composite = {
 261         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
 262         .ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
 263         .rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
 264 };
 265
 266 static const struct video_levels pal_levels_composite = {
 267         .blank = 237, .black = 237, .burst = 118,
 268 };
 269
 270 static const struct color_conversion pal_csc_svideo = {
 271         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
 272         .ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
 273         .rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
 274 };
 275
 276 static const struct video_levels pal_levels_svideo = {
 277         .blank = 280, .black = 280, .burst = 139,
 278 };
 279
 280 static const struct color_conversion pal_m_csc_composite = {
 281         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 282         .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 283         .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 284 };
 285
 286 static const struct video_levels pal_m_levels_composite = {
 287         .blank = 225, .black = 267, .burst = 113,
 288 };
 289
 290 static const struct color_conversion pal_m_csc_svideo = {
 291         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 292         .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 293         .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 294 };
 295
 296 static const struct video_levels pal_m_levels_svideo = {
 297         .blank = 266, .black = 316, .burst = 133,
 298 };
 299
 300 static const struct color_conversion pal_n_csc_composite = {
 301         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 302         .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 303         .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 304 };
 305
 306 static const struct video_levels pal_n_levels_composite = {
 307         .blank = 225, .black = 267, .burst = 118,
 308 };
 309
 310 static const struct color_conversion pal_n_csc_svideo = {
 311         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 312         .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 313         .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 314 };
 315
 316 static const struct video_levels pal_n_levels_svideo = {
 317         .blank = 266, .black = 316, .burst = 139,
 318 };
 319
 320 /*
 321  * Component connections
 322  */
 323 static const struct color_conversion sdtv_csc_yprpb = {
 324         .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
 325         .ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
 326         .rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
 327 };
 328
 329 static const struct color_conversion sdtv_csc_rgb = {
 330         .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
 331         .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
 332         .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
 333 };
 334
 335 static const struct color_conversion hdtv_csc_yprpb = {
 336         .ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
 337         .ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
 338         .rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
 339 };
 340
 341 static const struct color_conversion hdtv_csc_rgb = {
 342         .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
 343         .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
 344         .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
 345 };
 346
 347 static const struct video_levels component_levels = {
 348         .blank = 279, .black = 279, .burst = 0,
 349 };
 350
 351
 352 struct tv_mode {
 353         const char *name;
 354         int clock;
 355         int refresh; /* in millihertz (for precision) */
 356         u32 oversample;
 357         int hsync_end, hblank_start, hblank_end, htotal;
 358         bool progressive, trilevel_sync, component_only;
 359         int vsync_start_f1, vsync_start_f2, vsync_len;
 360         bool veq_ena;
 361         int veq_start_f1, veq_start_f2, veq_len;
 362         int vi_end_f1, vi_end_f2, nbr_end;
 363         bool burst_ena;
 364         int hburst_start, hburst_len;
 365         int vburst_start_f1, vburst_end_f1;
 366         int vburst_start_f2, vburst_end_f2;
 367         int vburst_start_f3, vburst_end_f3;
 368         int vburst_start_f4, vburst_end_f4;
 369         /*
 370          * subcarrier programming
 371          */
 372         int dda2_size, dda3_size, dda1_inc, dda2_inc, dda3_inc;
 373         u32 sc_reset;
 374         bool pal_burst;
 375         /*
 376          * blank/black levels
 377          */
 378         const struct video_levels *composite_levels, *svideo_levels;
 379         const struct color_conversion *composite_color, *svideo_color;
 380         const u32 *filter_table;
 381         int max_srcw;
 382 };
 383
 384
 385 /*
 386  * Sub carrier DDA
 387  *
 388  *  I think this works as follows:
 389  *
 390  *  subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
 391  *
 392  * Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
 393  *
 394  * So,
 395  *  dda1_ideal = subcarrier/pixel * 4096
 396  *  dda1_inc = floor (dda1_ideal)
 397  *  dda2 = dda1_ideal - dda1_inc
 398  *
 399  *  then pick a ratio for dda2 that gives the closest approximation. If
 400  *  you can't get close enough, you can play with dda3 as well. This
 401  *  seems likely to happen when dda2 is small as the jumps would be larger
 402  *
 403  * To invert this,
 404  *
 405  *  pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
 406  *
 407  * The constants below were all computed using a 107.520MHz clock
 408  */
 409
 410 /**
 411  * Register programming values for TV modes.
 412  *
 413  * These values account for -1s required.
 414  */
 415
 416 static const struct tv_mode tv_modes[] = {
 417         {
 418                 .name           = "NTSC-M",
 419                 .clock          = 108000,
 420                 .refresh        = 29970,
 421                 .oversample     = TV_OVERSAMPLE_8X,
 422                 .component_only = 0,
 423                 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 424
 425                 .hsync_end      = 64,               .hblank_end         = 124,
 426                 .hblank_start   = 836,              .htotal             = 857,
 427
 428                 .progressive    = false,            .trilevel_sync = false,
 429
 430                 .vsync_start_f1 = 6,                .vsync_start_f2     = 7,
 431                 .vsync_len      = 6,
 432
 433                 .veq_ena        = true,             .veq_start_f1       = 0,
 434                 .veq_start_f2   = 1,                .veq_len            = 18,
 435
 436                 .vi_end_f1      = 20,               .vi_end_f2          = 21,
 437                 .nbr_end        = 240,
 438
 439                 .burst_ena      = true,
 440                 .hburst_start   = 72,               .hburst_len         = 34,
 441                 .vburst_start_f1 = 9,               .vburst_end_f1      = 240,
 442                 .vburst_start_f2 = 10,              .vburst_end_f2      = 240,
 443                 .vburst_start_f3 = 9,               .vburst_end_f3      = 240,
 444                 .vburst_start_f4 = 10,              .vburst_end_f4      = 240,
 445
 446                 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
 447                 .dda1_inc       =    135,
 448                 .dda2_inc       =  20800,           .dda2_size          =  27456,
 449                 .dda3_inc       =      0,           .dda3_size          =      0,
 450                 .sc_reset       = TV_SC_RESET_EVERY_4,
 451                 .pal_burst      = false,
 452
 453                 .composite_levels = &ntsc_m_levels_composite,
 454                 .composite_color = &ntsc_m_csc_composite,
 455                 .svideo_levels  = &ntsc_m_levels_svideo,
 456                 .svideo_color = &ntsc_m_csc_svideo,
 457
 458                 .filter_table = filter_table,
 459         },
 460         {
 461                 .name           = "NTSC-443",
 462                 .clock          = 108000,
 463                 .refresh        = 29970,
 464                 .oversample     = TV_OVERSAMPLE_8X,
 465                 .component_only = 0,
 466                 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
 467                 .hsync_end      = 64,               .hblank_end         = 124,
 468                 .hblank_start   = 836,              .htotal             = 857,
 469
 470                 .progressive    = false,            .trilevel_sync = false,
 471
 472                 .vsync_start_f1 = 6,                .vsync_start_f2     = 7,
 473                 .vsync_len      = 6,
 474
 475                 .veq_ena        = true,             .veq_start_f1       = 0,
 476                 .veq_start_f2   = 1,                .veq_len            = 18,
 477
 478                 .vi_end_f1      = 20,               .vi_end_f2          = 21,
 479                 .nbr_end        = 240,
 480
 481                 .burst_ena      = true,
 482                 .hburst_start   = 72,               .hburst_len         = 34,
 483                 .vburst_start_f1 = 9,               .vburst_end_f1      = 240,
 484                 .vburst_start_f2 = 10,              .vburst_end_f2      = 240,
 485                 .vburst_start_f3 = 9,               .vburst_end_f3      = 240,
 486                 .vburst_start_f4 = 10,              .vburst_end_f4      = 240,
 487
 488                 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
 489                 .dda1_inc       =    168,
 490                 .dda2_inc       =   4093,       .dda2_size      =  27456,
 491                 .dda3_inc       =    310,       .dda3_size      =    525,
 492                 .sc_reset   = TV_SC_RESET_NEVER,
 493                 .pal_burst  = false,
 494
 495                 .composite_levels = &ntsc_m_levels_composite,
 496                 .composite_color = &ntsc_m_csc_composite,
 497                 .svideo_levels  = &ntsc_m_levels_svideo,
 498                 .svideo_color = &ntsc_m_csc_svideo,
 499
 500                 .filter_table = filter_table,
 501         },
 502         {
 503                 .name           = "NTSC-J",
 504                 .clock          = 108000,
 505                 .refresh        = 29970,
 506                 .oversample     = TV_OVERSAMPLE_8X,
 507                 .component_only = 0,
 508
 509                 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 510                 .hsync_end      = 64,               .hblank_end         = 124,
 511                 .hblank_start = 836,        .htotal             = 857,
 512
 513                 .progressive    = false,    .trilevel_sync = false,
 514
 515                 .vsync_start_f1 = 6,        .vsync_start_f2     = 7,
 516                 .vsync_len      = 6,
 517
 518                 .veq_ena        = true,             .veq_start_f1       = 0,
 519                 .veq_start_f2 = 1,          .veq_len            = 18,
 520
 521                 .vi_end_f1      = 20,               .vi_end_f2          = 21,
 522                 .nbr_end        = 240,
 523
 524                 .burst_ena      = true,
 525                 .hburst_start   = 72,               .hburst_len         = 34,
 526                 .vburst_start_f1 = 9,               .vburst_end_f1      = 240,
 527                 .vburst_start_f2 = 10,              .vburst_end_f2      = 240,
 528                 .vburst_start_f3 = 9,               .vburst_end_f3      = 240,
 529                 .vburst_start_f4 = 10,              .vburst_end_f4      = 240,
 530
 531                 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
 532                 .dda1_inc       =    135,
 533                 .dda2_inc       =  20800,           .dda2_size          =  27456,
 534                 .dda3_inc       =      0,           .dda3_size          =      0,
 535                 .sc_reset       = TV_SC_RESET_EVERY_4,
 536                 .pal_burst      = false,
 537
 538                 .composite_levels = &ntsc_j_levels_composite,
 539                 .composite_color = &ntsc_j_csc_composite,
 540                 .svideo_levels  = &ntsc_j_levels_svideo,
 541                 .svideo_color = &ntsc_j_csc_svideo,
 542
 543                 .filter_table = filter_table,
 544         },
 545         {
 546                 .name           = "PAL-M",
 547                 .clock          = 108000,
 548                 .refresh        = 29970,
 549                 .oversample     = TV_OVERSAMPLE_8X,
 550                 .component_only = 0,
 551
 552                 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 553                 .hsync_end      = 64,             .hblank_end           = 124,
 554                 .hblank_start = 836,      .htotal               = 857,
 555
 556                 .progressive    = false,            .trilevel_sync = false,
 557
 558                 .vsync_start_f1 = 6,                .vsync_start_f2     = 7,
 559                 .vsync_len      = 6,
 560
 561                 .veq_ena        = true,             .veq_start_f1       = 0,
 562                 .veq_start_f2   = 1,                .veq_len            = 18,
 563
 564                 .vi_end_f1      = 20,               .vi_end_f2          = 21,
 565                 .nbr_end        = 240,
 566
 567                 .burst_ena      = true,
 568                 .hburst_start   = 72,               .hburst_len         = 34,
 569                 .vburst_start_f1 = 9,               .vburst_end_f1      = 240,
 570                 .vburst_start_f2 = 10,              .vburst_end_f2      = 240,
 571                 .vburst_start_f3 = 9,               .vburst_end_f3      = 240,
 572                 .vburst_start_f4 = 10,              .vburst_end_f4      = 240,
 573
 574                 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
 575                 .dda1_inc       =    135,
 576                 .dda2_inc       =  16704,           .dda2_size          =  27456,
 577                 .dda3_inc       =      0,           .dda3_size          =      0,
 578                 .sc_reset       = TV_SC_RESET_EVERY_8,
 579                 .pal_burst  = true,
 580
 581                 .composite_levels = &pal_m_levels_composite,
 582                 .composite_color = &pal_m_csc_composite,
 583                 .svideo_levels  = &pal_m_levels_svideo,
 584                 .svideo_color = &pal_m_csc_svideo,
 585
 586                 .filter_table = filter_table,
 587         },
 588         {
 589                 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
 590                 .name       = "PAL-N",
 591                 .clock          = 108000,
 592                 .refresh        = 25000,
 593                 .oversample     = TV_OVERSAMPLE_8X,
 594                 .component_only = 0,
 595
 596                 .hsync_end      = 64,               .hblank_end         = 128,
 597                 .hblank_start = 844,        .htotal             = 863,
 598
 599                 .progressive  = false,    .trilevel_sync = false,
 600
 601
 602                 .vsync_start_f1 = 6,       .vsync_start_f2      = 7,
 603                 .vsync_len      = 6,
 604
 605                 .veq_ena        = true,             .veq_start_f1       = 0,
 606                 .veq_start_f2   = 1,                .veq_len            = 18,
 607
 608                 .vi_end_f1      = 24,               .vi_end_f2          = 25,
 609                 .nbr_end        = 286,
 610
 611                 .burst_ena      = true,
 612                 .hburst_start = 73,                 .hburst_len         = 34,
 613                 .vburst_start_f1 = 8,       .vburst_end_f1      = 285,
 614                 .vburst_start_f2 = 8,       .vburst_end_f2      = 286,
 615                 .vburst_start_f3 = 9,       .vburst_end_f3      = 286,
 616                 .vburst_start_f4 = 9,       .vburst_end_f4      = 285,
 617
 618
 619                 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
 620                 .dda1_inc       =    135,
 621                 .dda2_inc       =  23578,       .dda2_size      =  27648,
 622                 .dda3_inc       =    134,       .dda3_size      =    625,
 623                 .sc_reset   = TV_SC_RESET_EVERY_8,
 624                 .pal_burst  = true,
 625
 626                 .composite_levels = &pal_n_levels_composite,
 627                 .composite_color = &pal_n_csc_composite,
 628                 .svideo_levels  = &pal_n_levels_svideo,
 629                 .svideo_color = &pal_n_csc_svideo,
 630
 631                 .filter_table = filter_table,
 632         },
 633         {
 634                 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
 635                 .name       = "PAL",
 636                 .clock          = 108000,
 637                 .refresh        = 25000,
 638                 .oversample     = TV_OVERSAMPLE_8X,
 639                 .component_only = 0,
 640
 641                 .hsync_end      = 64,               .hblank_end         = 142,
 642                 .hblank_start   = 844,      .htotal             = 863,
 643
 644                 .progressive    = false,    .trilevel_sync = false,
 645
 646                 .vsync_start_f1 = 5,        .vsync_start_f2     = 6,
 647                 .vsync_len      = 5,
 648
 649                 .veq_ena        = true,             .veq_start_f1       = 0,
 650                 .veq_start_f2   = 1,        .veq_len            = 15,
 651
 652                 .vi_end_f1      = 24,               .vi_end_f2          = 25,
 653                 .nbr_end        = 286,
 654
 655                 .burst_ena      = true,
 656                 .hburst_start   = 73,               .hburst_len         = 32,
 657                 .vburst_start_f1 = 8,               .vburst_end_f1      = 285,
 658                 .vburst_start_f2 = 8,               .vburst_end_f2      = 286,
 659                 .vburst_start_f3 = 9,               .vburst_end_f3      = 286,
 660                 .vburst_start_f4 = 9,               .vburst_end_f4      = 285,
 661
 662                 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
 663                 .dda1_inc       =    168,
 664                 .dda2_inc       =   4122,       .dda2_size      =  27648,
 665                 .dda3_inc       =     67,       .dda3_size      =    625,
 666                 .sc_reset   = TV_SC_RESET_EVERY_8,
 667                 .pal_burst  = true,
 668
 669                 .composite_levels = &pal_levels_composite,
 670                 .composite_color = &pal_csc_composite,
 671                 .svideo_levels  = &pal_levels_svideo,
 672                 .svideo_color = &pal_csc_svideo,
 673
 674                 .filter_table = filter_table,
 675         },
 676         {
 677                 .name       = "480p@59.94Hz",
 678                 .clock  = 107520,
 679                 .refresh        = 59940,
 680                 .oversample     = TV_OVERSAMPLE_4X,
 681                 .component_only = 1,
 682
 683                 .hsync_end      = 64,               .hblank_end         = 122,
 684                 .hblank_start   = 842,              .htotal             = 857,
 685
 686                 .progressive    = true,.trilevel_sync = false,
 687
 688                 .vsync_start_f1 = 12,               .vsync_start_f2     = 12,
 689                 .vsync_len      = 12,
 690
 691                 .veq_ena        = false,
 692
 693                 .vi_end_f1      = 44,               .vi_end_f2          = 44,
 694                 .nbr_end        = 479,
 695
 696                 .burst_ena      = false,
 697
 698                 .filter_table = filter_table,
 699         },
 700         {
 701                 .name       = "480p@60Hz",
 702                 .clock  = 107520,
 703                 .refresh        = 60000,
 704                 .oversample     = TV_OVERSAMPLE_4X,
 705                 .component_only = 1,
 706
 707                 .hsync_end      = 64,               .hblank_end         = 122,
 708                 .hblank_start   = 842,              .htotal             = 856,
 709
 710                 .progressive    = true,.trilevel_sync = false,
 711
 712                 .vsync_start_f1 = 12,               .vsync_start_f2     = 12,
 713                 .vsync_len      = 12,
 714
 715                 .veq_ena        = false,
 716
 717                 .vi_end_f1      = 44,               .vi_end_f2          = 44,
 718                 .nbr_end        = 479,
 719
 720                 .burst_ena      = false,
 721
 722                 .filter_table = filter_table,
 723         },
 724         {
 725                 .name       = "576p",
 726                 .clock  = 107520,
 727                 .refresh        = 50000,
 728                 .oversample     = TV_OVERSAMPLE_4X,
 729                 .component_only = 1,
 730
 731                 .hsync_end      = 64,               .hblank_end         = 139,
 732                 .hblank_start   = 859,              .htotal             = 863,
 733
 734                 .progressive    = true,         .trilevel_sync = false,
 735
 736                 .vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 737                 .vsync_len      = 10,
 738
 739                 .veq_ena        = false,
 740
 741                 .vi_end_f1      = 48,               .vi_end_f2          = 48,
 742                 .nbr_end        = 575,
 743
 744                 .burst_ena      = false,
 745
 746                 .filter_table = filter_table,
 747         },
 748         {
 749                 .name       = "720p@60Hz",
 750                 .clock          = 148800,
 751                 .refresh        = 60000,
 752                 .oversample     = TV_OVERSAMPLE_2X,
 753                 .component_only = 1,
 754
 755                 .hsync_end      = 80,               .hblank_end         = 300,
 756                 .hblank_start   = 1580,             .htotal             = 1649,
 757
 758                 .progressive    = true,             .trilevel_sync = true,
 759
 760                 .vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 761                 .vsync_len      = 10,
 762
 763                 .veq_ena        = false,
 764
 765                 .vi_end_f1      = 29,               .vi_end_f2          = 29,
 766                 .nbr_end        = 719,
 767
 768                 .burst_ena      = false,
 769
 770                 .filter_table = filter_table,
 771         },
 772         {
 773                 .name       = "720p@59.94Hz",
 774                 .clock          = 148800,
 775                 .refresh        = 59940,
 776                 .oversample     = TV_OVERSAMPLE_2X,
 777                 .component_only = 1,
 778
 779                 .hsync_end      = 80,               .hblank_end         = 300,
 780                 .hblank_start   = 1580,             .htotal             = 1651,
 781
 782                 .progressive    = true,             .trilevel_sync = true,
 783
 784                 .vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 785                 .vsync_len      = 10,
 786
 787                 .veq_ena        = false,
 788
 789                 .vi_end_f1      = 29,               .vi_end_f2          = 29,
 790                 .nbr_end        = 719,
 791
 792                 .burst_ena      = false,
 793
 794                 .filter_table = filter_table,
 795         },
 796         {
 797                 .name       = "720p@50Hz",
 798                 .clock          = 148800,
 799                 .refresh        = 50000,
 800                 .oversample     = TV_OVERSAMPLE_2X,
 801                 .component_only = 1,
 802
 803                 .hsync_end      = 80,               .hblank_end         = 300,
 804                 .hblank_start   = 1580,             .htotal             = 1979,
 805
 806                 .progressive    = true,                 .trilevel_sync = true,
 807
 808                 .vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 809                 .vsync_len      = 10,
 810
 811                 .veq_ena        = false,
 812
 813                 .vi_end_f1      = 29,               .vi_end_f2          = 29,
 814                 .nbr_end        = 719,
 815
 816                 .burst_ena      = false,
 817
 818                 .filter_table = filter_table,
 819                 .max_srcw = 800
 820         },
 821         {
 822                 .name       = "1080i@50Hz",
 823                 .clock          = 148800,
 824                 .refresh        = 25000,
 825                 .oversample     = TV_OVERSAMPLE_2X,
 826                 .component_only = 1,
 827
 828                 .hsync_end      = 88,               .hblank_end         = 235,
 829                 .hblank_start   = 2155,             .htotal             = 2639,
 830
 831                 .progressive    = false,            .trilevel_sync = true,
 832
 833                 .vsync_start_f1 = 4,              .vsync_start_f2     = 5,
 834                 .vsync_len      = 10,
 835
 836                 .veq_ena        = true,             .veq_start_f1       = 4,
 837                 .veq_start_f2   = 4,        .veq_len            = 10,
 838
 839
 840                 .vi_end_f1      = 21,           .vi_end_f2          = 22,
 841                 .nbr_end        = 539,
 842
 843                 .burst_ena      = false,
 844
 845                 .filter_table = filter_table,
 846         },
 847         {
 848                 .name       = "1080i@60Hz",
 849                 .clock          = 148800,
 850                 .refresh        = 30000,
 851                 .oversample     = TV_OVERSAMPLE_2X,
 852                 .component_only = 1,
 853
 854                 .hsync_end      = 88,               .hblank_end         = 235,
 855                 .hblank_start   = 2155,             .htotal             = 2199,
 856
 857                 .progressive    = false,            .trilevel_sync = true,
 858
 859                 .vsync_start_f1 = 4,               .vsync_start_f2     = 5,
 860                 .vsync_len      = 10,
 861
 862                 .veq_ena        = true,             .veq_start_f1       = 4,
 863                 .veq_start_f2   = 4,                .veq_len            = 10,
 864
 865
 866                 .vi_end_f1      = 21,               .vi_end_f2          = 22,
 867                 .nbr_end        = 539,
 868
 869                 .burst_ena      = false,
 870
 871                 .filter_table = filter_table,
 872         },
 873         {
 874                 .name       = "1080i@59.94Hz",
 875                 .clock          = 148800,
 876                 .refresh        = 29970,
 877                 .oversample     = TV_OVERSAMPLE_2X,
 878                 .component_only = 1,
 879
 880                 .hsync_end      = 88,               .hblank_end         = 235,
 881                 .hblank_start   = 2155,             .htotal             = 2201,
 882
 883                 .progressive    = false,            .trilevel_sync = true,
 884
 885                 .vsync_start_f1 = 4,            .vsync_start_f2    = 5,
 886                 .vsync_len      = 10,
 887
 888                 .veq_ena        = true,             .veq_start_f1       = 4,
 889                 .veq_start_f2 = 4,                  .veq_len = 10,
 890
 891
 892                 .vi_end_f1      = 21,           .vi_end_f2              = 22,
 893                 .nbr_end        = 539,
 894
 895                 .burst_ena      = false,
 896
 897                 .filter_table = filter_table,
 898         },
 899 };
 900
 901 static struct intel_tv *enc_to_intel_tv(struct drm_encoder *encoder)
 902 {
 903         return container_of(encoder, struct intel_tv, base.base);
 904 }
 905
 906 static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
 907 {
 908         return container_of(intel_attached_encoder(connector),
 909                             struct intel_tv,
 910                             base);
 911 }
 912
 913 static void
 914 intel_tv_dpms(struct drm_encoder *encoder, int mode)
 915 {
 916         struct drm_device *dev = encoder->dev;
 917         struct drm_i915_private *dev_priv = dev->dev_private;
 918
 919         switch(mode) {
 920         case DRM_MODE_DPMS_ON:
 921                 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
 922                 break;
 923         case DRM_MODE_DPMS_STANDBY:
 924         case DRM_MODE_DPMS_SUSPEND:
 925         case DRM_MODE_DPMS_OFF:
 926                 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
 927                 break;
 928         }
 929 }
 930
 931 static const struct tv_mode *
 932 intel_tv_mode_lookup(const char *tv_format)
 933 {
 934         int i;
 935
 936         for (i = 0; i < sizeof(tv_modes) / sizeof (tv_modes[0]); i++) {
 937                 const struct tv_mode *tv_mode = &tv_modes[i];
 938
 939                 if (!strcmp(tv_format, tv_mode->name))
 940                         return tv_mode;
 941         }
 942         return NULL;
 943 }
 944
 945 static const struct tv_mode *
 946 intel_tv_mode_find(struct intel_tv *intel_tv)
 947 {
 948         return intel_tv_mode_lookup(intel_tv->tv_format);
 949 }
 950
 951 static enum drm_mode_status
 952 intel_tv_mode_valid(struct drm_connector *connector,
 953                     struct drm_display_mode *mode)
 954 {
 955         struct intel_tv *intel_tv = intel_attached_tv(connector);
 956         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
 957
 958         /* Ensure TV refresh is close to desired refresh */
 959         if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
 960                                 < 1000)
 961                 return MODE_OK;
 962
 963         return MODE_CLOCK_RANGE;
 964 }
 965
 966
 967 static bool
 968 intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 969                     struct drm_display_mode *adjusted_mode)
 970 {
 971         struct drm_device *dev = encoder->dev;
 972         struct drm_mode_config *drm_config = &dev->mode_config;
 973         struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
 974         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
 975         struct drm_encoder *other_encoder;
 976
 977         if (!tv_mode)
 978                 return false;
 979
 980         /* FIXME: lock encoder list */
 981         list_for_each_entry(other_encoder, &drm_config->encoder_list, head) {
 982                 if (other_encoder != encoder &&
 983                     other_encoder->crtc == encoder->crtc)
 984                         return false;
 985         }
 986
 987         adjusted_mode->clock = tv_mode->clock;
 988         return true;
 989 }
 990
 991 static void
 992 intel_tv_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 993                   struct drm_display_mode *adjusted_mode)
 994 {
 995         struct drm_device *dev = encoder->dev;
 996         struct drm_i915_private *dev_priv = dev->dev_private;
 997         struct drm_crtc *crtc = encoder->crtc;
 998         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 999         struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
1000         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1001         u32 tv_ctl;
1002         u32 hctl1, hctl2, hctl3;
1003         u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
1004         u32 scctl1, scctl2, scctl3;
1005         int i, j;
1006         const struct video_levels *video_levels;
1007         const struct color_conversion *color_conversion;
1008         bool burst_ena;
1009
1010         if (!tv_mode)
1011                 return; /* can't happen (mode_prepare prevents this) */
1012
1013         tv_ctl = I915_READ(TV_CTL);
1014         tv_ctl &= TV_CTL_SAVE;
1015
1016         switch (intel_tv->type) {
1017         default:
1018         case DRM_MODE_CONNECTOR_Unknown:
1019         case DRM_MODE_CONNECTOR_Composite:
1020                 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1021                 video_levels = tv_mode->composite_levels;
1022                 color_conversion = tv_mode->composite_color;
1023                 burst_ena = tv_mode->burst_ena;
1024                 break;
1025         case DRM_MODE_CONNECTOR_Component:
1026                 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1027                 video_levels = &component_levels;
1028                 if (tv_mode->burst_ena)
1029                         color_conversion = &sdtv_csc_yprpb;
1030                 else
1031                         color_conversion = &hdtv_csc_yprpb;
1032                 burst_ena = false;
1033                 break;
1034         case DRM_MODE_CONNECTOR_SVIDEO:
1035                 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1036                 video_levels = tv_mode->svideo_levels;
1037                 color_conversion = tv_mode->svideo_color;
1038                 burst_ena = tv_mode->burst_ena;
1039                 break;
1040         }
1041         hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
1042                 (tv_mode->htotal << TV_HTOTAL_SHIFT);
1043
1044         hctl2 = (tv_mode->hburst_start << 16) |
1045                 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
1046
1047         if (burst_ena)
1048                 hctl2 |= TV_BURST_ENA;
1049
1050         hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
1051                 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
1052
1053         vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
1054                 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
1055                 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
1056
1057         vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
1058                 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
1059                 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
1060
1061         vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
1062                 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
1063                 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
1064
1065         if (tv_mode->veq_ena)
1066                 vctl3 |= TV_EQUAL_ENA;
1067
1068         vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
1069                 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
1070
1071         vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
1072                 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
1073
1074         vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
1075                 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
1076
1077         vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
1078                 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
1079
1080         if (intel_crtc->pipe == 1)
1081                 tv_ctl |= TV_ENC_PIPEB_SELECT;
1082         tv_ctl |= tv_mode->oversample;
1083
1084         if (tv_mode->progressive)
1085                 tv_ctl |= TV_PROGRESSIVE;
1086         if (tv_mode->trilevel_sync)
1087                 tv_ctl |= TV_TRILEVEL_SYNC;
1088         if (tv_mode->pal_burst)
1089                 tv_ctl |= TV_PAL_BURST;
1090
1091         scctl1 = 0;
1092         if (tv_mode->dda1_inc)
1093                 scctl1 |= TV_SC_DDA1_EN;
1094         if (tv_mode->dda2_inc)
1095                 scctl1 |= TV_SC_DDA2_EN;
1096         if (tv_mode->dda3_inc)
1097                 scctl1 |= TV_SC_DDA3_EN;
1098         scctl1 |= tv_mode->sc_reset;
1099         if (video_levels)
1100                 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1101         scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1102
1103         scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1104                 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1105
1106         scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1107                 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1108
1109         /* Enable two fixes for the chips that need them. */
1110         if (dev->pci_device < 0x2772)
1111                 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1112
1113         I915_WRITE(TV_H_CTL_1, hctl1);
1114         I915_WRITE(TV_H_CTL_2, hctl2);
1115         I915_WRITE(TV_H_CTL_3, hctl3);
1116         I915_WRITE(TV_V_CTL_1, vctl1);
1117         I915_WRITE(TV_V_CTL_2, vctl2);
1118         I915_WRITE(TV_V_CTL_3, vctl3);
1119         I915_WRITE(TV_V_CTL_4, vctl4);
1120         I915_WRITE(TV_V_CTL_5, vctl5);
1121         I915_WRITE(TV_V_CTL_6, vctl6);
1122         I915_WRITE(TV_V_CTL_7, vctl7);
1123         I915_WRITE(TV_SC_CTL_1, scctl1);
1124         I915_WRITE(TV_SC_CTL_2, scctl2);
1125         I915_WRITE(TV_SC_CTL_3, scctl3);
1126
1127         if (color_conversion) {
1128                 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1129                            color_conversion->gy);
1130                 I915_WRITE(TV_CSC_Y2,(color_conversion->by << 16) |
1131                            color_conversion->ay);
1132                 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1133                            color_conversion->gu);
1134                 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1135                            color_conversion->au);
1136                 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1137                            color_conversion->gv);
1138                 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1139                            color_conversion->av);
1140         }
1141
1142         if (IS_I965G(dev))
1143                 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1144         else
1145                 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1146
1147         if (video_levels)
1148                 I915_WRITE(TV_CLR_LEVEL,
1149                            ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1150                             (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1151         {
1152                 int pipeconf_reg = (intel_crtc->pipe == 0) ?
1153                         PIPEACONF : PIPEBCONF;
1154                 int dspcntr_reg = (intel_crtc->plane == 0) ?
1155                         DSPACNTR : DSPBCNTR;
1156                 int pipeconf = I915_READ(pipeconf_reg);
1157                 int dspcntr = I915_READ(dspcntr_reg);
1158                 int dspbase_reg = (intel_crtc->plane == 0) ?
1159                         DSPAADDR : DSPBADDR;
1160                 int xpos = 0x0, ypos = 0x0;
1161                 unsigned int xsize, ysize;
1162                 /* Pipe must be off here */
1163                 I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
1164                 /* Flush the plane changes */
1165                 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1166
1167                 /* Wait for vblank for the disable to take effect */
1168                 if (!IS_I9XX(dev))
1169                         intel_wait_for_vblank(dev, intel_crtc->pipe);
1170
1171                 I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
1172                 /* Wait for vblank for the disable to take effect. */
1173                 intel_wait_for_vblank_off(dev, intel_crtc->pipe);
1174
1175                 /* Filter ctl must be set before TV_WIN_SIZE */
1176                 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1177                 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1178                 if (tv_mode->progressive)
1179                         ysize = tv_mode->nbr_end + 1;
1180                 else
1181                         ysize = 2*tv_mode->nbr_end + 1;
1182
1183                 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1184                 ypos += intel_tv->margin[TV_MARGIN_TOP];
1185                 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1186                           intel_tv->margin[TV_MARGIN_RIGHT]);
1187                 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1188                           intel_tv->margin[TV_MARGIN_BOTTOM]);
1189                 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1190                 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1191
1192                 I915_WRITE(pipeconf_reg, pipeconf);
1193                 I915_WRITE(dspcntr_reg, dspcntr);
1194                 /* Flush the plane changes */
1195                 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1196         }
1197
1198         j = 0;
1199         for (i = 0; i < 60; i++)
1200                 I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1201         for (i = 0; i < 60; i++)
1202                 I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1203         for (i = 0; i < 43; i++)
1204                 I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1205         for (i = 0; i < 43; i++)
1206                 I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1207         I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1208         I915_WRITE(TV_CTL, tv_ctl);
1209 }
1210
1211 static const struct drm_display_mode reported_modes[] = {
1212         {
1213                 .name = "NTSC 480i",
1214                 .clock = 107520,
1215                 .hdisplay = 1280,
1216                 .hsync_start = 1368,
1217                 .hsync_end = 1496,
1218                 .htotal = 1712,
1219
1220                 .vdisplay = 1024,
1221                 .vsync_start = 1027,
1222                 .vsync_end = 1034,
1223                 .vtotal = 1104,
1224                 .type = DRM_MODE_TYPE_DRIVER,
1225         },
1226 };
1227
1228 /**
1229  * Detects TV presence by checking for load.
1230  *
1231  * Requires that the current pipe's DPLL is active.
1232
1233  * \return true if TV is connected.
1234  * \return false if TV is disconnected.
1235  */
1236 static int
1237 intel_tv_detect_type (struct intel_tv *intel_tv)
1238 {
1239         struct drm_encoder *encoder = &intel_tv->base.base;
1240         struct drm_device *dev = encoder->dev;
1241         struct drm_i915_private *dev_priv = dev->dev_private;
1242         unsigned long irqflags;
1243         u32 tv_ctl, save_tv_ctl;
1244         u32 tv_dac, save_tv_dac;
1245         int type;
1246
1247         /* Disable TV interrupts around load detect or we'll recurse */
1248         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
1249         i915_disable_pipestat(dev_priv, 0, PIPE_HOTPLUG_INTERRUPT_ENABLE |
1250                               PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1251         spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);
1252
1253         save_tv_dac = tv_dac = I915_READ(TV_DAC);
1254         save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1255
1256         /* Poll for TV detection */
1257         tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1258         tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1259
1260         tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1261         tv_dac |= (TVDAC_STATE_CHG_EN |
1262                    TVDAC_A_SENSE_CTL |
1263                    TVDAC_B_SENSE_CTL |
1264                    TVDAC_C_SENSE_CTL |
1265                    DAC_CTL_OVERRIDE |
1266                    DAC_A_0_7_V |
1267                    DAC_B_0_7_V |
1268                    DAC_C_0_7_V);
1269
1270         I915_WRITE(TV_CTL, tv_ctl);
1271         I915_WRITE(TV_DAC, tv_dac);
1272         POSTING_READ(TV_DAC);
1273
1274         type = -1;
1275         if (wait_for((tv_dac = I915_READ(TV_DAC)) & TVDAC_STATE_CHG, 20) == 0) {
1276                 /*
1277                  *  A B C
1278                  *  0 1 1 Composite
1279                  *  1 0 X svideo
1280                  *  0 0 0 Component
1281                  */
1282                 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1283                         DRM_DEBUG_KMS("Detected Composite TV connection\n");
1284                         type = DRM_MODE_CONNECTOR_Composite;
1285                 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1286                         DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1287                         type = DRM_MODE_CONNECTOR_SVIDEO;
1288                 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1289                         DRM_DEBUG_KMS("Detected Component TV connection\n");
1290                         type = DRM_MODE_CONNECTOR_Component;
1291                 } else {
1292                         DRM_DEBUG_KMS("Unrecognised TV connection: %x\n",
1293                                       tv_dac);
1294                 }
1295         }
1296
1297         I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1298         I915_WRITE(TV_CTL, save_tv_ctl);
1299
1300         /* Restore interrupt config */
1301         spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
1302         i915_enable_pipestat(dev_priv, 0, PIPE_HOTPLUG_INTERRUPT_ENABLE |
1303                              PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1304         spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);
1305
1306         return type;
1307 }
1308
1309 /*
1310  * Here we set accurate tv format according to connector type
1311  * i.e Component TV should not be assigned by NTSC or PAL
1312  */
1313 static void intel_tv_find_better_format(struct drm_connector *connector)
1314 {
1315         struct intel_tv *intel_tv = intel_attached_tv(connector);
1316         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1317         int i;
1318
1319         if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1320                 tv_mode->component_only)
1321                 return;
1322
1323
1324         for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
1325                 tv_mode = tv_modes + i;
1326
1327                 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1328                         tv_mode->component_only)
1329                         break;
1330         }
1331
1332         intel_tv->tv_format = tv_mode->name;
1333         drm_connector_property_set_value(connector,
1334                 connector->dev->mode_config.tv_mode_property, i);
1335 }
1336
1337 /**
1338  * Detect the TV connection.
1339  *
1340  * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1341  * we have a pipe programmed in order to probe the TV.
1342  */
1343 static enum drm_connector_status
1344 intel_tv_detect(struct drm_connector *connector, bool force)
1345 {
1346         struct drm_display_mode mode;
1347         struct intel_tv *intel_tv = intel_attached_tv(connector);
1348         int type;
1349
1350         mode = reported_modes[0];
1351         drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);
1352
1353         if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) {
1354                 type = intel_tv_detect_type(intel_tv);
1355         } else if (force) {
1356                 struct drm_crtc *crtc;
1357                 int dpms_mode;
1358
1359                 crtc = intel_get_load_detect_pipe(&intel_tv->base, connector,
1360                                                   &mode, &dpms_mode);
1361                 if (crtc) {
1362                         type = intel_tv_detect_type(intel_tv);
1363                         intel_release_load_detect_pipe(&intel_tv->base, connector,
1364                                                        dpms_mode);
1365                 } else
1366                         return connector_status_unknown;
1367         } else
1368                 return connector->status;
1369
1370         if (type < 0)
1371                 return connector_status_disconnected;
1372
1373         intel_tv_find_better_format(connector);
1374         return connector_status_connected;
1375 }
1376
1377 static const struct input_res {
1378         const char *name;
1379         int w, h;
1380 } input_res_table[] = {
1381         {"640x480", 640, 480},
1382         {"800x600", 800, 600},
1383         {"1024x768", 1024, 768},
1384         {"1280x1024", 1280, 1024},
1385         {"848x480", 848, 480},
1386         {"1280x720", 1280, 720},
1387         {"1920x1080", 1920, 1080},
1388 };
1389
1390 /*
1391  * Chose preferred mode  according to line number of TV format
1392  */
1393 static void
1394 intel_tv_chose_preferred_modes(struct drm_connector *connector,
1395                                struct drm_display_mode *mode_ptr)
1396 {
1397         struct intel_tv *intel_tv = intel_attached_tv(connector);
1398         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1399
1400         if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1401                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1402         else if (tv_mode->nbr_end > 480) {
1403                 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1404                         if (mode_ptr->vdisplay == 720)
1405                                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1406                 } else if (mode_ptr->vdisplay == 1080)
1407                                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1408         }
1409 }
1410
1411 /**
1412  * Stub get_modes function.
1413  *
1414  * This should probably return a set of fixed modes, unless we can figure out
1415  * how to probe modes off of TV connections.
1416  */
1417
1418 static int
1419 intel_tv_get_modes(struct drm_connector *connector)
1420 {
1421         struct drm_display_mode *mode_ptr;
1422         struct intel_tv *intel_tv = intel_attached_tv(connector);
1423         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1424         int j, count = 0;
1425         u64 tmp;
1426
1427         for (j = 0; j < ARRAY_SIZE(input_res_table);
1428              j++) {
1429                 const struct input_res *input = &input_res_table[j];
1430                 unsigned int hactive_s = input->w;
1431                 unsigned int vactive_s = input->h;
1432
1433                 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1434                         continue;
1435
1436                 if (input->w > 1024 && (!tv_mode->progressive
1437                                         && !tv_mode->component_only))
1438                         continue;
1439
1440                 mode_ptr = drm_mode_create(connector->dev);
1441                 if (!mode_ptr)
1442                         continue;
1443                 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1444
1445                 mode_ptr->hdisplay = hactive_s;
1446                 mode_ptr->hsync_start = hactive_s + 1;
1447                 mode_ptr->hsync_end = hactive_s + 64;
1448                 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1449                         mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1450                 mode_ptr->htotal = hactive_s + 96;
1451
1452                 mode_ptr->vdisplay = vactive_s;
1453                 mode_ptr->vsync_start = vactive_s + 1;
1454                 mode_ptr->vsync_end = vactive_s + 32;
1455                 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1456                         mode_ptr->vsync_end = mode_ptr->vsync_start  + 1;
1457                 mode_ptr->vtotal = vactive_s + 33;
1458
1459                 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1460                 tmp *= mode_ptr->htotal;
1461                 tmp = div_u64(tmp, 1000000);
1462                 mode_ptr->clock = (int) tmp;
1463
1464                 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1465                 intel_tv_chose_preferred_modes(connector, mode_ptr);
1466                 drm_mode_probed_add(connector, mode_ptr);
1467                 count++;
1468         }
1469
1470         return count;
1471 }
1472
1473 static void
1474 intel_tv_destroy (struct drm_connector *connector)
1475 {
1476         drm_sysfs_connector_remove(connector);
1477         drm_connector_cleanup(connector);
1478         kfree(connector);
1479 }
1480
1481
1482 static int
1483 intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1484                       uint64_t val)
1485 {
1486         struct drm_device *dev = connector->dev;
1487         struct intel_tv *intel_tv = intel_attached_tv(connector);
1488         struct drm_crtc *crtc = intel_tv->base.base.crtc;
1489         int ret = 0;
1490         bool changed = false;
1491
1492         ret = drm_connector_property_set_value(connector, property, val);
1493         if (ret < 0)
1494                 goto out;
1495
1496         if (property == dev->mode_config.tv_left_margin_property &&
1497                 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1498                 intel_tv->margin[TV_MARGIN_LEFT] = val;
1499                 changed = true;
1500         } else if (property == dev->mode_config.tv_right_margin_property &&
1501                 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1502                 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1503                 changed = true;
1504         } else if (property == dev->mode_config.tv_top_margin_property &&
1505                 intel_tv->margin[TV_MARGIN_TOP] != val) {
1506                 intel_tv->margin[TV_MARGIN_TOP] = val;
1507                 changed = true;
1508         } else if (property == dev->mode_config.tv_bottom_margin_property &&
1509                 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1510                 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1511                 changed = true;
1512         } else if (property == dev->mode_config.tv_mode_property) {
1513                 if (val >= ARRAY_SIZE(tv_modes)) {
1514                         ret = -EINVAL;
1515                         goto out;
1516                 }
1517                 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1518                         goto out;
1519
1520                 intel_tv->tv_format = tv_modes[val].name;
1521                 changed = true;
1522         } else {
1523                 ret = -EINVAL;
1524                 goto out;
1525         }
1526
1527         if (changed && crtc)
1528                 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1529                                 crtc->y, crtc->fb);
1530 out:
1531         return ret;
1532 }
1533
1534 static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = {
1535         .dpms = intel_tv_dpms,
1536         .mode_fixup = intel_tv_mode_fixup,
1537         .prepare = intel_encoder_prepare,
1538         .mode_set = intel_tv_mode_set,
1539         .commit = intel_encoder_commit,
1540 };
1541
1542 static const struct drm_connector_funcs intel_tv_connector_funcs = {
1543         .dpms = drm_helper_connector_dpms,
1544         .detect = intel_tv_detect,
1545         .destroy = intel_tv_destroy,
1546         .set_property = intel_tv_set_property,
1547         .fill_modes = drm_helper_probe_single_connector_modes,
1548 };
1549
1550 static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1551         .mode_valid = intel_tv_mode_valid,
1552         .get_modes = intel_tv_get_modes,
1553         .best_encoder = intel_best_encoder,
1554 };
1555
1556 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1557         .destroy = intel_encoder_destroy,
1558 };
1559
1560 /*
1561  * Enumerate the child dev array parsed from VBT to check whether
1562  * the integrated TV is present.
1563  * If it is present, return 1.
1564  * If it is not present, return false.
1565  * If no child dev is parsed from VBT, it assumes that the TV is present.
1566  */
1567 static int tv_is_present_in_vbt(struct drm_device *dev)
1568 {
1569         struct drm_i915_private *dev_priv = dev->dev_private;
1570         struct child_device_config *p_child;
1571         int i, ret;
1572
1573         if (!dev_priv->child_dev_num)
1574                 return 1;
1575
1576         ret = 0;
1577         for (i = 0; i < dev_priv->child_dev_num; i++) {
1578                 p_child = dev_priv->child_dev + i;
1579                 /*
1580                  * If the device type is not TV, continue.
1581                  */
1582                 if (p_child->device_type != DEVICE_TYPE_INT_TV &&
1583                         p_child->device_type != DEVICE_TYPE_TV)
1584                         continue;
1585                 /* Only when the addin_offset is non-zero, it is regarded
1586                  * as present.
1587                  */
1588                 if (p_child->addin_offset) {
1589                         ret = 1;
1590                         break;
1591                 }
1592         }
1593         return ret;
1594 }
1595
1596 void
1597 intel_tv_init(struct drm_device *dev)
1598 {
1599         struct drm_i915_private *dev_priv = dev->dev_private;
1600         struct drm_connector *connector;
1601         struct intel_tv *intel_tv;
1602         struct intel_encoder *intel_encoder;
1603         struct intel_connector *intel_connector;
1604         u32 tv_dac_on, tv_dac_off, save_tv_dac;
1605         char *tv_format_names[ARRAY_SIZE(tv_modes)];
1606         int i, initial_mode = 0;
1607
1608         if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1609                 return;
1610
1611         if (!tv_is_present_in_vbt(dev)) {
1612                 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1613                 return;
1614         }
1615         /* Even if we have an encoder we may not have a connector */
1616         if (!dev_priv->int_tv_support)
1617                 return;
1618
1619         /*
1620          * Sanity check the TV output by checking to see if the
1621          * DAC register holds a value
1622          */
1623         save_tv_dac = I915_READ(TV_DAC);
1624
1625         I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1626         tv_dac_on = I915_READ(TV_DAC);
1627
1628         I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1629         tv_dac_off = I915_READ(TV_DAC);
1630
1631         I915_WRITE(TV_DAC, save_tv_dac);
1632
1633         /*
1634          * If the register does not hold the state change enable
1635          * bit, (either as a 0 or a 1), assume it doesn't really
1636          * exist
1637          */
1638         if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1639             (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1640                 return;
1641
1642         intel_tv = kzalloc(sizeof(struct intel_tv), GFP_KERNEL);
1643         if (!intel_tv) {
1644                 return;
1645         }
1646
1647         intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
1648         if (!intel_connector) {
1649                 kfree(intel_tv);
1650                 return;
1651         }
1652
1653         intel_encoder = &intel_tv->base;
1654         connector = &intel_connector->base;
1655
1656         drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1657                            DRM_MODE_CONNECTOR_SVIDEO);
1658
1659         drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1660                          DRM_MODE_ENCODER_TVDAC);
1661
1662         intel_connector_attach_encoder(intel_connector, intel_encoder);
1663         intel_encoder->type = INTEL_OUTPUT_TVOUT;
1664         intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1665         intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
1666         intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1667         intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
1668         intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1669
1670         /* BIOS margin values */
1671         intel_tv->margin[TV_MARGIN_LEFT] = 54;
1672         intel_tv->margin[TV_MARGIN_TOP] = 36;
1673         intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1674         intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1675
1676         intel_tv->tv_format = tv_modes[initial_mode].name;
1677
1678         drm_encoder_helper_add(&intel_encoder->base, &intel_tv_helper_funcs);
1679         drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1680         connector->interlace_allowed = false;
1681         connector->doublescan_allowed = false;
1682
1683         /* Create TV properties then attach current values */
1684         for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1685                 tv_format_names[i] = (char *)tv_modes[i].name;
1686         drm_mode_create_tv_properties(dev,
1687                                       ARRAY_SIZE(tv_modes),
1688                                       tv_format_names);
1689
1690         drm_connector_attach_property(connector, dev->mode_config.tv_mode_property,
1691                                    initial_mode);
1692         drm_connector_attach_property(connector,
1693                                    dev->mode_config.tv_left_margin_property,
1694                                    intel_tv->margin[TV_MARGIN_LEFT]);
1695         drm_connector_attach_property(connector,
1696                                    dev->mode_config.tv_top_margin_property,
1697                                    intel_tv->margin[TV_MARGIN_TOP]);
1698         drm_connector_attach_property(connector,
1699                                    dev->mode_config.tv_right_margin_property,
1700                                    intel_tv->margin[TV_MARGIN_RIGHT]);
1701         drm_connector_attach_property(connector,
1702                                    dev->mode_config.tv_bottom_margin_property,
1703                                    intel_tv->margin[TV_MARGIN_BOTTOM]);
1704         drm_sysfs_connector_add(connector);
1705 }