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         int pipe = intel_crtc->pipe;
1010
1011         if (!tv_mode)
1012                 return; /* can't happen (mode_prepare prevents this) */
1013
1014         tv_ctl = I915_READ(TV_CTL);
1015         tv_ctl &= TV_CTL_SAVE;
1016
1017         switch (intel_tv->type) {
1018         default:
1019         case DRM_MODE_CONNECTOR_Unknown:
1020         case DRM_MODE_CONNECTOR_Composite:
1021                 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1022                 video_levels = tv_mode->composite_levels;
1023                 color_conversion = tv_mode->composite_color;
1024                 burst_ena = tv_mode->burst_ena;
1025                 break;
1026         case DRM_MODE_CONNECTOR_Component:
1027                 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1028                 video_levels = &component_levels;
1029                 if (tv_mode->burst_ena)
1030                         color_conversion = &sdtv_csc_yprpb;
1031                 else
1032                         color_conversion = &hdtv_csc_yprpb;
1033                 burst_ena = false;
1034                 break;
1035         case DRM_MODE_CONNECTOR_SVIDEO:
1036                 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1037                 video_levels = tv_mode->svideo_levels;
1038                 color_conversion = tv_mode->svideo_color;
1039                 burst_ena = tv_mode->burst_ena;
1040                 break;
1041         }
1042         hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
1043                 (tv_mode->htotal << TV_HTOTAL_SHIFT);
1044
1045         hctl2 = (tv_mode->hburst_start << 16) |
1046                 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
1047
1048         if (burst_ena)
1049                 hctl2 |= TV_BURST_ENA;
1050
1051         hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
1052                 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
1053
1054         vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
1055                 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
1056                 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
1057
1058         vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
1059                 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
1060                 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
1061
1062         vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
1063                 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
1064                 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
1065
1066         if (tv_mode->veq_ena)
1067                 vctl3 |= TV_EQUAL_ENA;
1068
1069         vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
1070                 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
1071
1072         vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
1073                 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
1074
1075         vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
1076                 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
1077
1078         vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
1079                 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
1080
1081         if (intel_crtc->pipe == 1)
1082                 tv_ctl |= TV_ENC_PIPEB_SELECT;
1083         tv_ctl |= tv_mode->oversample;
1084
1085         if (tv_mode->progressive)
1086                 tv_ctl |= TV_PROGRESSIVE;
1087         if (tv_mode->trilevel_sync)
1088                 tv_ctl |= TV_TRILEVEL_SYNC;
1089         if (tv_mode->pal_burst)
1090                 tv_ctl |= TV_PAL_BURST;
1091
1092         scctl1 = 0;
1093         if (tv_mode->dda1_inc)
1094                 scctl1 |= TV_SC_DDA1_EN;
1095         if (tv_mode->dda2_inc)
1096                 scctl1 |= TV_SC_DDA2_EN;
1097         if (tv_mode->dda3_inc)
1098                 scctl1 |= TV_SC_DDA3_EN;
1099         scctl1 |= tv_mode->sc_reset;
1100         if (video_levels)
1101                 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1102         scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1103
1104         scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1105                 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1106
1107         scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1108                 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1109
1110         /* Enable two fixes for the chips that need them. */
1111         if (dev->pci_device < 0x2772)
1112                 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1113
1114         I915_WRITE(TV_H_CTL_1, hctl1);
1115         I915_WRITE(TV_H_CTL_2, hctl2);
1116         I915_WRITE(TV_H_CTL_3, hctl3);
1117         I915_WRITE(TV_V_CTL_1, vctl1);
1118         I915_WRITE(TV_V_CTL_2, vctl2);
1119         I915_WRITE(TV_V_CTL_3, vctl3);
1120         I915_WRITE(TV_V_CTL_4, vctl4);
1121         I915_WRITE(TV_V_CTL_5, vctl5);
1122         I915_WRITE(TV_V_CTL_6, vctl6);
1123         I915_WRITE(TV_V_CTL_7, vctl7);
1124         I915_WRITE(TV_SC_CTL_1, scctl1);
1125         I915_WRITE(TV_SC_CTL_2, scctl2);
1126         I915_WRITE(TV_SC_CTL_3, scctl3);
1127
1128         if (color_conversion) {
1129                 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1130                            color_conversion->gy);
1131                 I915_WRITE(TV_CSC_Y2,(color_conversion->by << 16) |
1132                            color_conversion->ay);
1133                 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1134                            color_conversion->gu);
1135                 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1136                            color_conversion->au);
1137                 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1138                            color_conversion->gv);
1139                 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1140                            color_conversion->av);
1141         }
1142
1143         if (INTEL_INFO(dev)->gen >= 4)
1144                 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1145         else
1146                 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1147
1148         if (video_levels)
1149                 I915_WRITE(TV_CLR_LEVEL,
1150                            ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1151                             (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1152         {
1153                 int pipeconf_reg = PIPECONF(pipe);
1154                 int dspcntr_reg = DSPCNTR(intel_crtc->plane);
1155                 int pipeconf = I915_READ(pipeconf_reg);
1156                 int dspcntr = I915_READ(dspcntr_reg);
1157                 int dspbase_reg = DSPADDR(intel_crtc->plane);
1158                 int xpos = 0x0, ypos = 0x0;
1159                 unsigned int xsize, ysize;
1160                 /* Pipe must be off here */
1161                 I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
1162                 /* Flush the plane changes */
1163                 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1164
1165                 /* Wait for vblank for the disable to take effect */
1166                 if (IS_GEN2(dev))
1167                         intel_wait_for_vblank(dev, intel_crtc->pipe);
1168
1169                 I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
1170                 /* Wait for vblank for the disable to take effect. */
1171                 intel_wait_for_pipe_off(dev, intel_crtc->pipe);
1172
1173                 /* Filter ctl must be set before TV_WIN_SIZE */
1174                 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1175                 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1176                 if (tv_mode->progressive)
1177                         ysize = tv_mode->nbr_end + 1;
1178                 else
1179                         ysize = 2*tv_mode->nbr_end + 1;
1180
1181                 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1182                 ypos += intel_tv->margin[TV_MARGIN_TOP];
1183                 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1184                           intel_tv->margin[TV_MARGIN_RIGHT]);
1185                 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1186                           intel_tv->margin[TV_MARGIN_BOTTOM]);
1187                 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1188                 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1189
1190                 I915_WRITE(pipeconf_reg, pipeconf);
1191                 I915_WRITE(dspcntr_reg, dspcntr);
1192                 /* Flush the plane changes */
1193                 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1194         }
1195
1196         j = 0;
1197         for (i = 0; i < 60; i++)
1198                 I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1199         for (i = 0; i < 60; i++)
1200                 I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1201         for (i = 0; i < 43; i++)
1202                 I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1203         for (i = 0; i < 43; i++)
1204                 I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1205         I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1206         I915_WRITE(TV_CTL, tv_ctl);
1207 }
1208
1209 static const struct drm_display_mode reported_modes[] = {
1210         {
1211                 .name = "NTSC 480i",
1212                 .clock = 107520,
1213                 .hdisplay = 1280,
1214                 .hsync_start = 1368,
1215                 .hsync_end = 1496,
1216                 .htotal = 1712,
1217
1218                 .vdisplay = 1024,
1219                 .vsync_start = 1027,
1220                 .vsync_end = 1034,
1221                 .vtotal = 1104,
1222                 .type = DRM_MODE_TYPE_DRIVER,
1223         },
1224 };
1225
1226 /**
1227  * Detects TV presence by checking for load.
1228  *
1229  * Requires that the current pipe's DPLL is active.
1230
1231  * \return true if TV is connected.
1232  * \return false if TV is disconnected.
1233  */
1234 static int
1235 intel_tv_detect_type (struct intel_tv *intel_tv,
1236                       struct drm_connector *connector)
1237 {
1238         struct drm_encoder *encoder = &intel_tv->base.base;
1239         struct drm_device *dev = encoder->dev;
1240         struct drm_i915_private *dev_priv = dev->dev_private;
1241         unsigned long irqflags;
1242         u32 tv_ctl, save_tv_ctl;
1243         u32 tv_dac, save_tv_dac;
1244         int type;
1245
1246         /* Disable TV interrupts around load detect or we'll recurse */
1247         if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1248                 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1249                 i915_disable_pipestat(dev_priv, 0,
1250                                       PIPE_HOTPLUG_INTERRUPT_ENABLE |
1251                                       PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1252                 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1253         }
1254
1255         save_tv_dac = tv_dac = I915_READ(TV_DAC);
1256         save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1257
1258         /* Poll for TV detection */
1259         tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1260         tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1261
1262         tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1263         tv_dac |= (TVDAC_STATE_CHG_EN |
1264                    TVDAC_A_SENSE_CTL |
1265                    TVDAC_B_SENSE_CTL |
1266                    TVDAC_C_SENSE_CTL |
1267                    DAC_CTL_OVERRIDE |
1268                    DAC_A_0_7_V |
1269                    DAC_B_0_7_V |
1270                    DAC_C_0_7_V);
1271
1272         I915_WRITE(TV_CTL, tv_ctl);
1273         I915_WRITE(TV_DAC, tv_dac);
1274         POSTING_READ(TV_DAC);
1275
1276         intel_wait_for_vblank(intel_tv->base.base.dev,
1277                               to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1278
1279         type = -1;
1280         if (wait_for((tv_dac = I915_READ(TV_DAC)) & TVDAC_STATE_CHG, 20) == 0) {
1281                 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1282                 /*
1283                  *  A B C
1284                  *  0 1 1 Composite
1285                  *  1 0 X svideo
1286                  *  0 0 0 Component
1287                  */
1288                 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1289                         DRM_DEBUG_KMS("Detected Composite TV connection\n");
1290                         type = DRM_MODE_CONNECTOR_Composite;
1291                 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1292                         DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1293                         type = DRM_MODE_CONNECTOR_SVIDEO;
1294                 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1295                         DRM_DEBUG_KMS("Detected Component TV connection\n");
1296                         type = DRM_MODE_CONNECTOR_Component;
1297                 } else {
1298                         DRM_DEBUG_KMS("Unrecognised TV connection\n");
1299                 }
1300         }
1301
1302         I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1303         I915_WRITE(TV_CTL, save_tv_ctl);
1304
1305         /* Restore interrupt config */
1306         if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1307                 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1308                 i915_enable_pipestat(dev_priv, 0,
1309                                      PIPE_HOTPLUG_INTERRUPT_ENABLE |
1310                                      PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1311                 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1312         }
1313
1314         return type;
1315 }
1316
1317 /*
1318  * Here we set accurate tv format according to connector type
1319  * i.e Component TV should not be assigned by NTSC or PAL
1320  */
1321 static void intel_tv_find_better_format(struct drm_connector *connector)
1322 {
1323         struct intel_tv *intel_tv = intel_attached_tv(connector);
1324         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1325         int i;
1326
1327         if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1328                 tv_mode->component_only)
1329                 return;
1330
1331
1332         for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
1333                 tv_mode = tv_modes + i;
1334
1335                 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1336                         tv_mode->component_only)
1337                         break;
1338         }
1339
1340         intel_tv->tv_format = tv_mode->name;
1341         drm_connector_property_set_value(connector,
1342                 connector->dev->mode_config.tv_mode_property, i);
1343 }
1344
1345 /**
1346  * Detect the TV connection.
1347  *
1348  * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1349  * we have a pipe programmed in order to probe the TV.
1350  */
1351 static enum drm_connector_status
1352 intel_tv_detect(struct drm_connector *connector, bool force)
1353 {
1354         struct drm_display_mode mode;
1355         struct intel_tv *intel_tv = intel_attached_tv(connector);
1356         int type;
1357
1358         mode = reported_modes[0];
1359         drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);
1360
1361         if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) {
1362                 type = intel_tv_detect_type(intel_tv, connector);
1363         } else if (force) {
1364                 struct drm_crtc *crtc;
1365                 int dpms_mode;
1366
1367                 crtc = intel_get_load_detect_pipe(&intel_tv->base, connector,
1368                                                   &mode, &dpms_mode);
1369                 if (crtc) {
1370                         type = intel_tv_detect_type(intel_tv, connector);
1371                         intel_release_load_detect_pipe(&intel_tv->base, connector,
1372                                                        dpms_mode);
1373                 } else
1374                         return connector_status_unknown;
1375         } else
1376                 return connector->status;
1377
1378         if (type < 0)
1379                 return connector_status_disconnected;
1380
1381         intel_tv->type = type;
1382         intel_tv_find_better_format(connector);
1383
1384         return connector_status_connected;
1385 }
1386
1387 static const struct input_res {
1388         const char *name;
1389         int w, h;
1390 } input_res_table[] = {
1391         {"640x480", 640, 480},
1392         {"800x600", 800, 600},
1393         {"1024x768", 1024, 768},
1394         {"1280x1024", 1280, 1024},
1395         {"848x480", 848, 480},
1396         {"1280x720", 1280, 720},
1397         {"1920x1080", 1920, 1080},
1398 };
1399
1400 /*
1401  * Chose preferred mode  according to line number of TV format
1402  */
1403 static void
1404 intel_tv_chose_preferred_modes(struct drm_connector *connector,
1405                                struct drm_display_mode *mode_ptr)
1406 {
1407         struct intel_tv *intel_tv = intel_attached_tv(connector);
1408         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1409
1410         if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1411                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1412         else if (tv_mode->nbr_end > 480) {
1413                 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1414                         if (mode_ptr->vdisplay == 720)
1415                                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1416                 } else if (mode_ptr->vdisplay == 1080)
1417                                 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1418         }
1419 }
1420
1421 /**
1422  * Stub get_modes function.
1423  *
1424  * This should probably return a set of fixed modes, unless we can figure out
1425  * how to probe modes off of TV connections.
1426  */
1427
1428 static int
1429 intel_tv_get_modes(struct drm_connector *connector)
1430 {
1431         struct drm_display_mode *mode_ptr;
1432         struct intel_tv *intel_tv = intel_attached_tv(connector);
1433         const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1434         int j, count = 0;
1435         u64 tmp;
1436
1437         for (j = 0; j < ARRAY_SIZE(input_res_table);
1438              j++) {
1439                 const struct input_res *input = &input_res_table[j];
1440                 unsigned int hactive_s = input->w;
1441                 unsigned int vactive_s = input->h;
1442
1443                 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1444                         continue;
1445
1446                 if (input->w > 1024 && (!tv_mode->progressive
1447                                         && !tv_mode->component_only))
1448                         continue;
1449
1450                 mode_ptr = drm_mode_create(connector->dev);
1451                 if (!mode_ptr)
1452                         continue;
1453                 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1454
1455                 mode_ptr->hdisplay = hactive_s;
1456                 mode_ptr->hsync_start = hactive_s + 1;
1457                 mode_ptr->hsync_end = hactive_s + 64;
1458                 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1459                         mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1460                 mode_ptr->htotal = hactive_s + 96;
1461
1462                 mode_ptr->vdisplay = vactive_s;
1463                 mode_ptr->vsync_start = vactive_s + 1;
1464                 mode_ptr->vsync_end = vactive_s + 32;
1465                 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1466                         mode_ptr->vsync_end = mode_ptr->vsync_start  + 1;
1467                 mode_ptr->vtotal = vactive_s + 33;
1468
1469                 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1470                 tmp *= mode_ptr->htotal;
1471                 tmp = div_u64(tmp, 1000000);
1472                 mode_ptr->clock = (int) tmp;
1473
1474                 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1475                 intel_tv_chose_preferred_modes(connector, mode_ptr);
1476                 drm_mode_probed_add(connector, mode_ptr);
1477                 count++;
1478         }
1479
1480         return count;
1481 }
1482
1483 static void
1484 intel_tv_destroy (struct drm_connector *connector)
1485 {
1486         drm_sysfs_connector_remove(connector);
1487         drm_connector_cleanup(connector);
1488         kfree(connector);
1489 }
1490
1491
1492 static int
1493 intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1494                       uint64_t val)
1495 {
1496         struct drm_device *dev = connector->dev;
1497         struct intel_tv *intel_tv = intel_attached_tv(connector);
1498         struct drm_crtc *crtc = intel_tv->base.base.crtc;
1499         int ret = 0;
1500         bool changed = false;
1501
1502         ret = drm_connector_property_set_value(connector, property, val);
1503         if (ret < 0)
1504                 goto out;
1505
1506         if (property == dev->mode_config.tv_left_margin_property &&
1507                 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1508                 intel_tv->margin[TV_MARGIN_LEFT] = val;
1509                 changed = true;
1510         } else if (property == dev->mode_config.tv_right_margin_property &&
1511                 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1512                 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1513                 changed = true;
1514         } else if (property == dev->mode_config.tv_top_margin_property &&
1515                 intel_tv->margin[TV_MARGIN_TOP] != val) {
1516                 intel_tv->margin[TV_MARGIN_TOP] = val;
1517                 changed = true;
1518         } else if (property == dev->mode_config.tv_bottom_margin_property &&
1519                 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1520                 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1521                 changed = true;
1522         } else if (property == dev->mode_config.tv_mode_property) {
1523                 if (val >= ARRAY_SIZE(tv_modes)) {
1524                         ret = -EINVAL;
1525                         goto out;
1526                 }
1527                 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1528                         goto out;
1529
1530                 intel_tv->tv_format = tv_modes[val].name;
1531                 changed = true;
1532         } else {
1533                 ret = -EINVAL;
1534                 goto out;
1535         }
1536
1537         if (changed && crtc)
1538                 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1539                                 crtc->y, crtc->fb);
1540 out:
1541         return ret;
1542 }
1543
1544 static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = {
1545         .dpms = intel_tv_dpms,
1546         .mode_fixup = intel_tv_mode_fixup,
1547         .prepare = intel_encoder_prepare,
1548         .mode_set = intel_tv_mode_set,
1549         .commit = intel_encoder_commit,
1550 };
1551
1552 static const struct drm_connector_funcs intel_tv_connector_funcs = {
1553         .dpms = drm_helper_connector_dpms,
1554         .detect = intel_tv_detect,
1555         .destroy = intel_tv_destroy,
1556         .set_property = intel_tv_set_property,
1557         .fill_modes = drm_helper_probe_single_connector_modes,
1558 };
1559
1560 static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1561         .mode_valid = intel_tv_mode_valid,
1562         .get_modes = intel_tv_get_modes,
1563         .best_encoder = intel_best_encoder,
1564 };
1565
1566 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1567         .destroy = intel_encoder_destroy,
1568 };
1569
1570 /*
1571  * Enumerate the child dev array parsed from VBT to check whether
1572  * the integrated TV is present.
1573  * If it is present, return 1.
1574  * If it is not present, return false.
1575  * If no child dev is parsed from VBT, it assumes that the TV is present.
1576  */
1577 static int tv_is_present_in_vbt(struct drm_device *dev)
1578 {
1579         struct drm_i915_private *dev_priv = dev->dev_private;
1580         struct child_device_config *p_child;
1581         int i, ret;
1582
1583         if (!dev_priv->child_dev_num)
1584                 return 1;
1585
1586         ret = 0;
1587         for (i = 0; i < dev_priv->child_dev_num; i++) {
1588                 p_child = dev_priv->child_dev + i;
1589                 /*
1590                  * If the device type is not TV, continue.
1591                  */
1592                 if (p_child->device_type != DEVICE_TYPE_INT_TV &&
1593                         p_child->device_type != DEVICE_TYPE_TV)
1594                         continue;
1595                 /* Only when the addin_offset is non-zero, it is regarded
1596                  * as present.
1597                  */
1598                 if (p_child->addin_offset) {
1599                         ret = 1;
1600                         break;
1601                 }
1602         }
1603         return ret;
1604 }
1605
1606 void
1607 intel_tv_init(struct drm_device *dev)
1608 {
1609         struct drm_i915_private *dev_priv = dev->dev_private;
1610         struct drm_connector *connector;
1611         struct intel_tv *intel_tv;
1612         struct intel_encoder *intel_encoder;
1613         struct intel_connector *intel_connector;
1614         u32 tv_dac_on, tv_dac_off, save_tv_dac;
1615         char *tv_format_names[ARRAY_SIZE(tv_modes)];
1616         int i, initial_mode = 0;
1617
1618         if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1619                 return;
1620
1621         if (!tv_is_present_in_vbt(dev)) {
1622                 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1623                 return;
1624         }
1625         /* Even if we have an encoder we may not have a connector */
1626         if (!dev_priv->int_tv_support)
1627                 return;
1628
1629         /*
1630          * Sanity check the TV output by checking to see if the
1631          * DAC register holds a value
1632          */
1633         save_tv_dac = I915_READ(TV_DAC);
1634
1635         I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1636         tv_dac_on = I915_READ(TV_DAC);
1637
1638         I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1639         tv_dac_off = I915_READ(TV_DAC);
1640
1641         I915_WRITE(TV_DAC, save_tv_dac);
1642
1643         /*
1644          * If the register does not hold the state change enable
1645          * bit, (either as a 0 or a 1), assume it doesn't really
1646          * exist
1647          */
1648         if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1649             (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1650                 return;
1651
1652         intel_tv = kzalloc(sizeof(struct intel_tv), GFP_KERNEL);
1653         if (!intel_tv) {
1654                 return;
1655         }
1656
1657         intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
1658         if (!intel_connector) {
1659                 kfree(intel_tv);
1660                 return;
1661         }
1662
1663         intel_encoder = &intel_tv->base;
1664         connector = &intel_connector->base;
1665
1666         /* The documentation, for the older chipsets at least, recommend
1667          * using a polling method rather than hotplug detection for TVs.
1668          * This is because in order to perform the hotplug detection, the PLLs
1669          * for the TV must be kept alive increasing power drain and starving
1670          * bandwidth from other encoders. Notably for instance, it causes
1671          * pipe underruns on Crestline when this encoder is supposedly idle.
1672          *
1673          * More recent chipsets favour HDMI rather than integrated S-Video.
1674          */
1675         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1676
1677         drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1678                            DRM_MODE_CONNECTOR_SVIDEO);
1679
1680         drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1681                          DRM_MODE_ENCODER_TVDAC);
1682
1683         intel_connector_attach_encoder(intel_connector, intel_encoder);
1684         intel_encoder->type = INTEL_OUTPUT_TVOUT;
1685         intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1686         intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
1687         intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1688         intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
1689         intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1690
1691         /* BIOS margin values */
1692         intel_tv->margin[TV_MARGIN_LEFT] = 54;
1693         intel_tv->margin[TV_MARGIN_TOP] = 36;
1694         intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1695         intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1696
1697         intel_tv->tv_format = tv_modes[initial_mode].name;
1698
1699         drm_encoder_helper_add(&intel_encoder->base, &intel_tv_helper_funcs);
1700         drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1701         connector->interlace_allowed = false;
1702         connector->doublescan_allowed = false;
1703
1704         /* Create TV properties then attach current values */
1705         for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1706                 tv_format_names[i] = (char *)tv_modes[i].name;
1707         drm_mode_create_tv_properties(dev,
1708                                       ARRAY_SIZE(tv_modes),
1709                                       tv_format_names);
1710
1711         drm_connector_attach_property(connector, dev->mode_config.tv_mode_property,
1712                                    initial_mode);
1713         drm_connector_attach_property(connector,
1714                                    dev->mode_config.tv_left_margin_property,
1715                                    intel_tv->margin[TV_MARGIN_LEFT]);
1716         drm_connector_attach_property(connector,
1717                                    dev->mode_config.tv_top_margin_property,
1718                                    intel_tv->margin[TV_MARGIN_TOP]);
1719         drm_connector_attach_property(connector,
1720                                    dev->mode_config.tv_right_margin_property,
1721                                    intel_tv->margin[TV_MARGIN_RIGHT]);
1722         drm_connector_attach_property(connector,
1723                                    dev->mode_config.tv_bottom_margin_property,
1724                                    intel_tv->margin[TV_MARGIN_BOTTOM]);
1725         drm_sysfs_connector_add(connector);
1726 }