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 <drm/drm_atomic_helper.h>
  34#include <drm/drm_crtc.h>
  35#include <drm/drm_edid.h>
  36
  37#include "i915_drv.h"
  38#include "i915_reg.h"
  39#include "i915_irq.h"
  40#include "intel_connector.h"
  41#include "intel_crtc.h"
  42#include "intel_de.h"
 
  43#include "intel_display_types.h"
  44#include "intel_dpll.h"
  45#include "intel_hotplug.h"
 
  46#include "intel_tv.h"
 
  47
  48enum tv_margin {
  49	TV_MARGIN_LEFT, TV_MARGIN_TOP,
  50	TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
  51};
  52
  53struct intel_tv {
  54	struct intel_encoder base;
  55
  56	int type;
  57};
  58
  59struct video_levels {
  60	u16 blank, black;
  61	u8 burst;
  62};
  63
  64struct color_conversion {
  65	u16 ry, gy, by, ay;
  66	u16 ru, gu, bu, au;
  67	u16 rv, gv, bv, av;
  68};
  69
  70static const u32 filter_table[] = {
  71	0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
  72	0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
  73	0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
  74	0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
  75	0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
  76	0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
  77	0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
  78	0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
  79	0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
  80	0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
  81	0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
  82	0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
  83	0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
  84	0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
  85	0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
  86	0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
  87	0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
  88	0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
  89	0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
  90	0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
  91	0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
  92	0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
  93	0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
  94	0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
  95	0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
  96	0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
  97	0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
  98	0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
  99	0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
 100	0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
 101	0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
 102	0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
 103	0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
 104	0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
 105	0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
 106	0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
 107	0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
 108	0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
 109	0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
 110	0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
 111	0x28003100, 0x28002F00, 0x00003100, 0x36403000,
 112	0x2D002CC0, 0x30003640, 0x2D0036C0,
 113	0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
 114	0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
 115	0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
 116	0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
 117	0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
 118	0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
 119	0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
 120	0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
 121	0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
 122	0x28003100, 0x28002F00, 0x00003100,
 123};
 124
 125/*
 126 * Color conversion values have 3 separate fixed point formats:
 127 *
 128 * 10 bit fields (ay, au)
 129 *   1.9 fixed point (b.bbbbbbbbb)
 130 * 11 bit fields (ry, by, ru, gu, gv)
 131 *   exp.mantissa (ee.mmmmmmmmm)
 132 *   ee = 00 = 10^-1 (0.mmmmmmmmm)
 133 *   ee = 01 = 10^-2 (0.0mmmmmmmmm)
 134 *   ee = 10 = 10^-3 (0.00mmmmmmmmm)
 135 *   ee = 11 = 10^-4 (0.000mmmmmmmmm)
 136 * 12 bit fields (gy, rv, bu)
 137 *   exp.mantissa (eee.mmmmmmmmm)
 138 *   eee = 000 = 10^-1 (0.mmmmmmmmm)
 139 *   eee = 001 = 10^-2 (0.0mmmmmmmmm)
 140 *   eee = 010 = 10^-3 (0.00mmmmmmmmm)
 141 *   eee = 011 = 10^-4 (0.000mmmmmmmmm)
 142 *   eee = 100 = reserved
 143 *   eee = 101 = reserved
 144 *   eee = 110 = reserved
 145 *   eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
 146 *
 147 * Saturation and contrast are 8 bits, with their own representation:
 148 * 8 bit field (saturation, contrast)
 149 *   exp.mantissa (ee.mmmmmm)
 150 *   ee = 00 = 10^-1 (0.mmmmmm)
 151 *   ee = 01 = 10^0 (m.mmmmm)
 152 *   ee = 10 = 10^1 (mm.mmmm)
 153 *   ee = 11 = 10^2 (mmm.mmm)
 154 *
 155 * Simple conversion function:
 156 *
 157 * static u32
 158 * float_to_csc_11(float f)
 159 * {
 160 *     u32 exp;
 161 *     u32 mant;
 162 *     u32 ret;
 163 *
 164 *     if (f < 0)
 165 *         f = -f;
 166 *
 167 *     if (f >= 1) {
 168 *         exp = 0x7;
 169 *	   mant = 1 << 8;
 170 *     } else {
 171 *         for (exp = 0; exp < 3 && f < 0.5; exp++)
 172 *	   f *= 2.0;
 173 *         mant = (f * (1 << 9) + 0.5);
 174 *         if (mant >= (1 << 9))
 175 *             mant = (1 << 9) - 1;
 176 *     }
 177 *     ret = (exp << 9) | mant;
 178 *     return ret;
 179 * }
 180 */
 181
 182/*
 183 * Behold, magic numbers!  If we plant them they might grow a big
 184 * s-video cable to the sky... or something.
 185 *
 186 * Pre-converted to appropriate hex value.
 187 */
 188
 189/*
 190 * PAL & NTSC values for composite & s-video connections
 191 */
 192static const struct color_conversion ntsc_m_csc_composite = {
 193	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 194	.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 195	.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 196};
 197
 198static const struct video_levels ntsc_m_levels_composite = {
 199	.blank = 225, .black = 267, .burst = 113,
 200};
 201
 202static const struct color_conversion ntsc_m_csc_svideo = {
 203	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 204	.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 205	.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 206};
 207
 208static const struct video_levels ntsc_m_levels_svideo = {
 209	.blank = 266, .black = 316, .burst = 133,
 210};
 211
 212static const struct color_conversion ntsc_j_csc_composite = {
 213	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
 214	.ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
 215	.rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
 216};
 217
 218static const struct video_levels ntsc_j_levels_composite = {
 219	.blank = 225, .black = 225, .burst = 113,
 220};
 221
 222static const struct color_conversion ntsc_j_csc_svideo = {
 223	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
 224	.ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
 225	.rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
 226};
 227
 228static const struct video_levels ntsc_j_levels_svideo = {
 229	.blank = 266, .black = 266, .burst = 133,
 230};
 231
 232static const struct color_conversion pal_csc_composite = {
 233	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
 234	.ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
 235	.rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
 236};
 237
 238static const struct video_levels pal_levels_composite = {
 239	.blank = 237, .black = 237, .burst = 118,
 240};
 241
 242static const struct color_conversion pal_csc_svideo = {
 243	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
 244	.ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
 245	.rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
 246};
 247
 248static const struct video_levels pal_levels_svideo = {
 249	.blank = 280, .black = 280, .burst = 139,
 250};
 251
 252static const struct color_conversion pal_m_csc_composite = {
 253	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 254	.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 255	.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 256};
 257
 258static const struct video_levels pal_m_levels_composite = {
 259	.blank = 225, .black = 267, .burst = 113,
 260};
 261
 262static const struct color_conversion pal_m_csc_svideo = {
 263	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 264	.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 265	.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 266};
 267
 268static const struct video_levels pal_m_levels_svideo = {
 269	.blank = 266, .black = 316, .burst = 133,
 270};
 271
 272static const struct color_conversion pal_n_csc_composite = {
 273	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
 274	.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
 275	.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
 276};
 277
 278static const struct video_levels pal_n_levels_composite = {
 279	.blank = 225, .black = 267, .burst = 118,
 280};
 281
 282static const struct color_conversion pal_n_csc_svideo = {
 283	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
 284	.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
 285	.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
 286};
 287
 288static const struct video_levels pal_n_levels_svideo = {
 289	.blank = 266, .black = 316, .burst = 139,
 290};
 291
 292/*
 293 * Component connections
 294 */
 295static const struct color_conversion sdtv_csc_yprpb = {
 296	.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
 297	.ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
 298	.rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
 299};
 300
 301static const struct color_conversion hdtv_csc_yprpb = {
 302	.ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
 303	.ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
 304	.rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
 305};
 306
 307static const struct video_levels component_levels = {
 308	.blank = 279, .black = 279, .burst = 0,
 309};
 310
 311
 312struct tv_mode {
 313	const char *name;
 314
 315	u32 clock;
 316	u16 refresh; /* in millihertz (for precision) */
 317	u8 oversample;
 318	u8 hsync_end;
 319	u16 hblank_start, hblank_end, htotal;
 320	bool progressive : 1, trilevel_sync : 1, component_only : 1;
 321	u8 vsync_start_f1, vsync_start_f2, vsync_len;
 322	bool veq_ena : 1;
 323	u8 veq_start_f1, veq_start_f2, veq_len;
 324	u8 vi_end_f1, vi_end_f2;
 325	u16 nbr_end;
 326	bool burst_ena : 1;
 327	u8 hburst_start, hburst_len;
 328	u8 vburst_start_f1;
 329	u16 vburst_end_f1;
 330	u8 vburst_start_f2;
 331	u16 vburst_end_f2;
 332	u8 vburst_start_f3;
 333	u16 vburst_end_f3;
 334	u8 vburst_start_f4;
 335	u16 vburst_end_f4;
 336	/*
 337	 * subcarrier programming
 338	 */
 339	u16 dda2_size, dda3_size;
 340	u8 dda1_inc;
 341	u16 dda2_inc, dda3_inc;
 342	u32 sc_reset;
 343	bool pal_burst : 1;
 344	/*
 345	 * blank/black levels
 346	 */
 347	const struct video_levels *composite_levels, *svideo_levels;
 348	const struct color_conversion *composite_color, *svideo_color;
 349	const u32 *filter_table;
 350};
 351
 352
 353/*
 354 * Sub carrier DDA
 355 *
 356 *  I think this works as follows:
 357 *
 358 *  subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
 359 *
 360 * Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
 361 *
 362 * So,
 363 *  dda1_ideal = subcarrier/pixel * 4096
 364 *  dda1_inc = floor (dda1_ideal)
 365 *  dda2 = dda1_ideal - dda1_inc
 366 *
 367 *  then pick a ratio for dda2 that gives the closest approximation. If
 368 *  you can't get close enough, you can play with dda3 as well. This
 369 *  seems likely to happen when dda2 is small as the jumps would be larger
 370 *
 371 * To invert this,
 372 *
 373 *  pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
 374 *
 375 * The constants below were all computed using a 107.520MHz clock
 376 */
 377
 378/*
 379 * Register programming values for TV modes.
 380 *
 381 * These values account for -1s required.
 382 */
 383static const struct tv_mode tv_modes[] = {
 384	{
 385		.name		= "NTSC-M",
 386		.clock		= 108000,
 387		.refresh	= 59940,
 388		.oversample	= 8,
 389		.component_only = false,
 390		/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 391
 392		.hsync_end	= 64,		    .hblank_end		= 124,
 393		.hblank_start	= 836,		    .htotal		= 857,
 394
 395		.progressive	= false,	    .trilevel_sync = false,
 396
 397		.vsync_start_f1	= 6,		    .vsync_start_f2	= 7,
 398		.vsync_len	= 6,
 399
 400		.veq_ena	= true,		    .veq_start_f1	= 0,
 401		.veq_start_f2	= 1,		    .veq_len		= 18,
 402
 403		.vi_end_f1	= 20,		    .vi_end_f2		= 21,
 404		.nbr_end	= 240,
 405
 406		.burst_ena	= true,
 407		.hburst_start	= 72,		    .hburst_len		= 34,
 408		.vburst_start_f1 = 9,		    .vburst_end_f1	= 240,
 409		.vburst_start_f2 = 10,		    .vburst_end_f2	= 240,
 410		.vburst_start_f3 = 9,		    .vburst_end_f3	= 240,
 411		.vburst_start_f4 = 10,		    .vburst_end_f4	= 240,
 412
 413		/* desired 3.5800000 actual 3.5800000 clock 107.52 */
 414		.dda1_inc	=    135,
 415		.dda2_inc	=  20800,	    .dda2_size		=  27456,
 416		.dda3_inc	=      0,	    .dda3_size		=      0,
 417		.sc_reset	= TV_SC_RESET_EVERY_4,
 418		.pal_burst	= false,
 419
 420		.composite_levels = &ntsc_m_levels_composite,
 421		.composite_color = &ntsc_m_csc_composite,
 422		.svideo_levels  = &ntsc_m_levels_svideo,
 423		.svideo_color = &ntsc_m_csc_svideo,
 424
 425		.filter_table = filter_table,
 426	},
 427	{
 428		.name		= "NTSC-443",
 429		.clock		= 108000,
 430		.refresh	= 59940,
 431		.oversample	= 8,
 432		.component_only = false,
 433		/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
 434		.hsync_end	= 64,		    .hblank_end		= 124,
 435		.hblank_start	= 836,		    .htotal		= 857,
 436
 437		.progressive	= false,	    .trilevel_sync = false,
 438
 439		.vsync_start_f1 = 6,		    .vsync_start_f2	= 7,
 440		.vsync_len	= 6,
 441
 442		.veq_ena	= true,		    .veq_start_f1	= 0,
 443		.veq_start_f2	= 1,		    .veq_len		= 18,
 444
 445		.vi_end_f1	= 20,		    .vi_end_f2		= 21,
 446		.nbr_end	= 240,
 447
 448		.burst_ena	= true,
 449		.hburst_start	= 72,		    .hburst_len		= 34,
 450		.vburst_start_f1 = 9,		    .vburst_end_f1	= 240,
 451		.vburst_start_f2 = 10,		    .vburst_end_f2	= 240,
 452		.vburst_start_f3 = 9,		    .vburst_end_f3	= 240,
 453		.vburst_start_f4 = 10,		    .vburst_end_f4	= 240,
 454
 455		/* desired 4.4336180 actual 4.4336180 clock 107.52 */
 456		.dda1_inc       =    168,
 457		.dda2_inc       =   4093,       .dda2_size      =  27456,
 458		.dda3_inc       =    310,       .dda3_size      =    525,
 459		.sc_reset   = TV_SC_RESET_NEVER,
 460		.pal_burst  = false,
 461
 462		.composite_levels = &ntsc_m_levels_composite,
 463		.composite_color = &ntsc_m_csc_composite,
 464		.svideo_levels  = &ntsc_m_levels_svideo,
 465		.svideo_color = &ntsc_m_csc_svideo,
 466
 467		.filter_table = filter_table,
 468	},
 469	{
 470		.name		= "NTSC-J",
 471		.clock		= 108000,
 472		.refresh	= 59940,
 473		.oversample	= 8,
 474		.component_only = false,
 475
 476		/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 477		.hsync_end	= 64,		    .hblank_end		= 124,
 478		.hblank_start = 836,	    .htotal		= 857,
 479
 480		.progressive	= false,    .trilevel_sync = false,
 481
 482		.vsync_start_f1	= 6,	    .vsync_start_f2	= 7,
 483		.vsync_len	= 6,
 484
 485		.veq_ena      = true,	    .veq_start_f1	= 0,
 486		.veq_start_f2 = 1,	    .veq_len		= 18,
 487
 488		.vi_end_f1	= 20,		    .vi_end_f2		= 21,
 489		.nbr_end	= 240,
 490
 491		.burst_ena	= true,
 492		.hburst_start	= 72,		    .hburst_len		= 34,
 493		.vburst_start_f1 = 9,		    .vburst_end_f1	= 240,
 494		.vburst_start_f2 = 10,		    .vburst_end_f2	= 240,
 495		.vburst_start_f3 = 9,		    .vburst_end_f3	= 240,
 496		.vburst_start_f4 = 10,		    .vburst_end_f4	= 240,
 497
 498		/* desired 3.5800000 actual 3.5800000 clock 107.52 */
 499		.dda1_inc	=    135,
 500		.dda2_inc	=  20800,	    .dda2_size		=  27456,
 501		.dda3_inc	=      0,	    .dda3_size		=      0,
 502		.sc_reset	= TV_SC_RESET_EVERY_4,
 503		.pal_burst	= false,
 504
 505		.composite_levels = &ntsc_j_levels_composite,
 506		.composite_color = &ntsc_j_csc_composite,
 507		.svideo_levels  = &ntsc_j_levels_svideo,
 508		.svideo_color = &ntsc_j_csc_svideo,
 509
 510		.filter_table = filter_table,
 511	},
 512	{
 513		.name		= "PAL-M",
 514		.clock		= 108000,
 515		.refresh	= 59940,
 516		.oversample	= 8,
 517		.component_only = false,
 518
 519		/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
 520		.hsync_end	= 64,		  .hblank_end		= 124,
 521		.hblank_start = 836,	  .htotal		= 857,
 522
 523		.progressive	= false,	    .trilevel_sync = false,
 524
 525		.vsync_start_f1	= 6,		    .vsync_start_f2	= 7,
 526		.vsync_len	= 6,
 527
 528		.veq_ena	= true,		    .veq_start_f1	= 0,
 529		.veq_start_f2	= 1,		    .veq_len		= 18,
 530
 531		.vi_end_f1	= 20,		    .vi_end_f2		= 21,
 532		.nbr_end	= 240,
 533
 534		.burst_ena	= true,
 535		.hburst_start	= 72,		    .hburst_len		= 34,
 536		.vburst_start_f1 = 9,		    .vburst_end_f1	= 240,
 537		.vburst_start_f2 = 10,		    .vburst_end_f2	= 240,
 538		.vburst_start_f3 = 9,		    .vburst_end_f3	= 240,
 539		.vburst_start_f4 = 10,		    .vburst_end_f4	= 240,
 540
 541		/* desired 3.5800000 actual 3.5800000 clock 107.52 */
 542		.dda1_inc	=    135,
 543		.dda2_inc	=  16704,	    .dda2_size		=  27456,
 544		.dda3_inc	=      0,	    .dda3_size		=      0,
 545		.sc_reset	= TV_SC_RESET_EVERY_8,
 546		.pal_burst  = true,
 547
 548		.composite_levels = &pal_m_levels_composite,
 549		.composite_color = &pal_m_csc_composite,
 550		.svideo_levels  = &pal_m_levels_svideo,
 551		.svideo_color = &pal_m_csc_svideo,
 552
 553		.filter_table = filter_table,
 554	},
 555	{
 556		/* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
 557		.name	    = "PAL-N",
 558		.clock		= 108000,
 559		.refresh	= 50000,
 560		.oversample	= 8,
 561		.component_only = false,
 562
 563		.hsync_end	= 64,		    .hblank_end		= 128,
 564		.hblank_start = 844,	    .htotal		= 863,
 565
 566		.progressive  = false,    .trilevel_sync = false,
 567
 568
 569		.vsync_start_f1	= 6,	   .vsync_start_f2	= 7,
 570		.vsync_len	= 6,
 571
 572		.veq_ena	= true,		    .veq_start_f1	= 0,
 573		.veq_start_f2	= 1,		    .veq_len		= 18,
 574
 575		.vi_end_f1	= 24,		    .vi_end_f2		= 25,
 576		.nbr_end	= 286,
 577
 578		.burst_ena	= true,
 579		.hburst_start = 73,	    .hburst_len		= 34,
 580		.vburst_start_f1 = 8,	    .vburst_end_f1	= 285,
 581		.vburst_start_f2 = 8,	    .vburst_end_f2	= 286,
 582		.vburst_start_f3 = 9,	    .vburst_end_f3	= 286,
 583		.vburst_start_f4 = 9,	    .vburst_end_f4	= 285,
 584
 585
 586		/* desired 4.4336180 actual 4.4336180 clock 107.52 */
 587		.dda1_inc       =    135,
 588		.dda2_inc       =  23578,       .dda2_size      =  27648,
 589		.dda3_inc       =    134,       .dda3_size      =    625,
 590		.sc_reset   = TV_SC_RESET_EVERY_8,
 591		.pal_burst  = true,
 592
 593		.composite_levels = &pal_n_levels_composite,
 594		.composite_color = &pal_n_csc_composite,
 595		.svideo_levels  = &pal_n_levels_svideo,
 596		.svideo_color = &pal_n_csc_svideo,
 597
 598		.filter_table = filter_table,
 599	},
 600	{
 601		/* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
 602		.name	    = "PAL",
 603		.clock		= 108000,
 604		.refresh	= 50000,
 605		.oversample	= 8,
 606		.component_only = false,
 607
 608		.hsync_end	= 64,		    .hblank_end		= 142,
 609		.hblank_start	= 844,	    .htotal		= 863,
 610
 611		.progressive	= false,    .trilevel_sync = false,
 612
 613		.vsync_start_f1	= 5,	    .vsync_start_f2	= 6,
 614		.vsync_len	= 5,
 615
 616		.veq_ena	= true,	    .veq_start_f1	= 0,
 617		.veq_start_f2	= 1,	    .veq_len		= 15,
 618
 619		.vi_end_f1	= 24,		    .vi_end_f2		= 25,
 620		.nbr_end	= 286,
 621
 622		.burst_ena	= true,
 623		.hburst_start	= 73,		    .hburst_len		= 32,
 624		.vburst_start_f1 = 8,		    .vburst_end_f1	= 285,
 625		.vburst_start_f2 = 8,		    .vburst_end_f2	= 286,
 626		.vburst_start_f3 = 9,		    .vburst_end_f3	= 286,
 627		.vburst_start_f4 = 9,		    .vburst_end_f4	= 285,
 628
 629		/* desired 4.4336180 actual 4.4336180 clock 107.52 */
 630		.dda1_inc       =    168,
 631		.dda2_inc       =   4122,       .dda2_size      =  27648,
 632		.dda3_inc       =     67,       .dda3_size      =    625,
 633		.sc_reset   = TV_SC_RESET_EVERY_8,
 634		.pal_burst  = true,
 635
 636		.composite_levels = &pal_levels_composite,
 637		.composite_color = &pal_csc_composite,
 638		.svideo_levels  = &pal_levels_svideo,
 639		.svideo_color = &pal_csc_svideo,
 640
 641		.filter_table = filter_table,
 642	},
 643	{
 644		.name       = "480p",
 645		.clock		= 108000,
 646		.refresh	= 59940,
 647		.oversample     = 4,
 648		.component_only = true,
 649
 650		.hsync_end      = 64,               .hblank_end         = 122,
 651		.hblank_start   = 842,              .htotal             = 857,
 652
 653		.progressive    = true,		    .trilevel_sync = false,
 654
 655		.vsync_start_f1 = 12,               .vsync_start_f2     = 12,
 656		.vsync_len      = 12,
 657
 658		.veq_ena        = false,
 659
 660		.vi_end_f1      = 44,               .vi_end_f2          = 44,
 661		.nbr_end        = 479,
 662
 663		.burst_ena      = false,
 664
 665		.filter_table = filter_table,
 666	},
 667	{
 668		.name       = "576p",
 669		.clock		= 108000,
 670		.refresh	= 50000,
 671		.oversample     = 4,
 672		.component_only = true,
 673
 674		.hsync_end      = 64,               .hblank_end         = 139,
 675		.hblank_start   = 859,              .htotal             = 863,
 676
 677		.progressive    = true,		    .trilevel_sync = false,
 678
 679		.vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 680		.vsync_len      = 10,
 681
 682		.veq_ena        = false,
 683
 684		.vi_end_f1      = 48,               .vi_end_f2          = 48,
 685		.nbr_end        = 575,
 686
 687		.burst_ena      = false,
 688
 689		.filter_table = filter_table,
 690	},
 691	{
 692		.name       = "720p@60Hz",
 693		.clock		= 148500,
 694		.refresh	= 60000,
 695		.oversample     = 2,
 696		.component_only = true,
 697
 698		.hsync_end      = 80,               .hblank_end         = 300,
 699		.hblank_start   = 1580,             .htotal             = 1649,
 700
 701		.progressive	= true,		    .trilevel_sync = true,
 702
 703		.vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 704		.vsync_len      = 10,
 705
 706		.veq_ena        = false,
 707
 708		.vi_end_f1      = 29,               .vi_end_f2          = 29,
 709		.nbr_end        = 719,
 710
 711		.burst_ena      = false,
 712
 713		.filter_table = filter_table,
 714	},
 715	{
 716		.name       = "720p@50Hz",
 717		.clock		= 148500,
 718		.refresh	= 50000,
 719		.oversample     = 2,
 720		.component_only = true,
 721
 722		.hsync_end      = 80,               .hblank_end         = 300,
 723		.hblank_start   = 1580,             .htotal             = 1979,
 724
 725		.progressive	= true,		    .trilevel_sync = true,
 726
 727		.vsync_start_f1 = 10,               .vsync_start_f2     = 10,
 728		.vsync_len      = 10,
 729
 730		.veq_ena        = false,
 731
 732		.vi_end_f1      = 29,               .vi_end_f2          = 29,
 733		.nbr_end        = 719,
 734
 735		.burst_ena      = false,
 736
 737		.filter_table = filter_table,
 738	},
 739	{
 740		.name       = "1080i@50Hz",
 741		.clock		= 148500,
 742		.refresh	= 50000,
 743		.oversample     = 2,
 744		.component_only = true,
 745
 746		.hsync_end      = 88,               .hblank_end         = 235,
 747		.hblank_start   = 2155,             .htotal             = 2639,
 748
 749		.progressive	= false,	  .trilevel_sync = true,
 750
 751		.vsync_start_f1 = 4,              .vsync_start_f2     = 5,
 752		.vsync_len      = 10,
 753
 754		.veq_ena	= true,	    .veq_start_f1	= 4,
 755		.veq_start_f2   = 4,	    .veq_len		= 10,
 756
 757
 758		.vi_end_f1      = 21,           .vi_end_f2          = 22,
 759		.nbr_end        = 539,
 760
 761		.burst_ena      = false,
 762
 763		.filter_table = filter_table,
 764	},
 765	{
 766		.name       = "1080i@60Hz",
 767		.clock		= 148500,
 768		.refresh	= 60000,
 769		.oversample     = 2,
 770		.component_only = true,
 771
 772		.hsync_end      = 88,               .hblank_end         = 235,
 773		.hblank_start   = 2155,             .htotal             = 2199,
 774
 775		.progressive	= false,	    .trilevel_sync = true,
 776
 777		.vsync_start_f1 = 4,               .vsync_start_f2     = 5,
 778		.vsync_len      = 10,
 779
 780		.veq_ena	= true,		    .veq_start_f1	= 4,
 781		.veq_start_f2	= 4,		    .veq_len		= 10,
 782
 783
 784		.vi_end_f1      = 21,               .vi_end_f2          = 22,
 785		.nbr_end        = 539,
 786
 787		.burst_ena      = false,
 788
 789		.filter_table = filter_table,
 790	},
 791
 792	{
 793		.name       = "1080p@30Hz",
 794		.clock		= 148500,
 795		.refresh	= 30000,
 796		.oversample     = 2,
 797		.component_only = true,
 798
 799		.hsync_end      = 88,               .hblank_end         = 235,
 800		.hblank_start   = 2155,             .htotal             = 2199,
 801
 802		.progressive	= true,		    .trilevel_sync = true,
 803
 804		.vsync_start_f1 = 8,               .vsync_start_f2     = 8,
 805		.vsync_len      = 10,
 806
 807		.veq_ena	= false,	.veq_start_f1	= 0,
 808		.veq_start_f2	= 0,		    .veq_len		= 0,
 809
 810		.vi_end_f1      = 44,               .vi_end_f2          = 44,
 811		.nbr_end        = 1079,
 812
 813		.burst_ena      = false,
 814
 815		.filter_table = filter_table,
 816	},
 817
 818	{
 819		.name       = "1080p@50Hz",
 820		.clock		= 148500,
 821		.refresh	= 50000,
 822		.oversample     = 1,
 823		.component_only = true,
 824
 825		.hsync_end      = 88,               .hblank_end         = 235,
 826		.hblank_start   = 2155,             .htotal             = 2639,
 827
 828		.progressive	= true,		    .trilevel_sync = true,
 829
 830		.vsync_start_f1 = 8,               .vsync_start_f2     = 8,
 831		.vsync_len      = 10,
 832
 833		.veq_ena	= false,	.veq_start_f1	= 0,
 834		.veq_start_f2	= 0,		    .veq_len		= 0,
 835
 836		.vi_end_f1      = 44,               .vi_end_f2          = 44,
 837		.nbr_end        = 1079,
 838
 839		.burst_ena      = false,
 840
 841		.filter_table = filter_table,
 842	},
 843
 844	{
 845		.name       = "1080p@60Hz",
 846		.clock		= 148500,
 847		.refresh	= 60000,
 848		.oversample     = 1,
 849		.component_only = true,
 850
 851		.hsync_end      = 88,               .hblank_end         = 235,
 852		.hblank_start   = 2155,             .htotal             = 2199,
 853
 854		.progressive	= true,		    .trilevel_sync = true,
 855
 856		.vsync_start_f1 = 8,               .vsync_start_f2     = 8,
 857		.vsync_len      = 10,
 858
 859		.veq_ena	= false,		    .veq_start_f1	= 0,
 860		.veq_start_f2	= 0,		    .veq_len		= 0,
 861
 862		.vi_end_f1      = 44,               .vi_end_f2          = 44,
 863		.nbr_end        = 1079,
 864
 865		.burst_ena      = false,
 866
 867		.filter_table = filter_table,
 868	},
 869};
 870
 871struct intel_tv_connector_state {
 872	struct drm_connector_state base;
 873
 874	/*
 875	 * May need to override the user margins for
 876	 * gen3 >1024 wide source vertical centering.
 877	 */
 878	struct {
 879		u16 top, bottom;
 880	} margins;
 881
 882	bool bypass_vfilter;
 883};
 884
 885#define to_intel_tv_connector_state(x) container_of(x, struct intel_tv_connector_state, base)
 886
 887static struct drm_connector_state *
 888intel_tv_connector_duplicate_state(struct drm_connector *connector)
 889{
 890	struct intel_tv_connector_state *state;
 891
 892	state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);
 893	if (!state)
 894		return NULL;
 895
 896	__drm_atomic_helper_connector_duplicate_state(connector, &state->base);
 897	return &state->base;
 898}
 899
 900static struct intel_tv *enc_to_tv(struct intel_encoder *encoder)
 901{
 902	return container_of(encoder, struct intel_tv, base);
 903}
 904
 905static struct intel_tv *intel_attached_tv(struct intel_connector *connector)
 906{
 907	return enc_to_tv(intel_attached_encoder(connector));
 908}
 909
 910static bool
 911intel_tv_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe)
 912{
 913	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 914	u32 tmp = intel_de_read(dev_priv, TV_CTL);
 915
 916	*pipe = (tmp & TV_ENC_PIPE_SEL_MASK) >> TV_ENC_PIPE_SEL_SHIFT;
 917
 918	return tmp & TV_ENC_ENABLE;
 919}
 920
 921static void
 922intel_enable_tv(struct intel_atomic_state *state,
 923		struct intel_encoder *encoder,
 924		const struct intel_crtc_state *pipe_config,
 925		const struct drm_connector_state *conn_state)
 926{
 927	struct drm_device *dev = encoder->base.dev;
 928	struct drm_i915_private *dev_priv = to_i915(dev);
 929
 930	/* Prevents vblank waits from timing out in intel_tv_detect_type() */
 931	intel_crtc_wait_for_next_vblank(to_intel_crtc(pipe_config->uapi.crtc));
 932
 933	intel_de_write(dev_priv, TV_CTL,
 934		       intel_de_read(dev_priv, TV_CTL) | TV_ENC_ENABLE);
 935}
 936
 937static void
 938intel_disable_tv(struct intel_atomic_state *state,
 939		 struct intel_encoder *encoder,
 940		 const struct intel_crtc_state *old_crtc_state,
 941		 const struct drm_connector_state *old_conn_state)
 942{
 943	struct drm_device *dev = encoder->base.dev;
 944	struct drm_i915_private *dev_priv = to_i915(dev);
 945
 946	intel_de_write(dev_priv, TV_CTL,
 947		       intel_de_read(dev_priv, TV_CTL) & ~TV_ENC_ENABLE);
 948}
 949
 950static const struct tv_mode *intel_tv_mode_find(const struct drm_connector_state *conn_state)
 951{
 952	int format = conn_state->tv.mode;
 953
 954	return &tv_modes[format];
 955}
 956
 957static enum drm_mode_status
 958intel_tv_mode_valid(struct drm_connector *connector,
 959		    struct drm_display_mode *mode)
 960{
 
 961	const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
 962	int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
 
 
 
 
 
 963
 964	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 965		return MODE_NO_DBLESCAN;
 966
 967	if (mode->clock > max_dotclk)
 968		return MODE_CLOCK_HIGH;
 969
 970	/* Ensure TV refresh is close to desired refresh */
 971	if (abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000) >= 1000)
 972		return MODE_CLOCK_RANGE;
 973
 974	return MODE_OK;
 975}
 976
 977static int
 978intel_tv_mode_vdisplay(const struct tv_mode *tv_mode)
 979{
 980	if (tv_mode->progressive)
 981		return tv_mode->nbr_end + 1;
 982	else
 983		return 2 * (tv_mode->nbr_end + 1);
 984}
 985
 986static void
 987intel_tv_mode_to_mode(struct drm_display_mode *mode,
 988		      const struct tv_mode *tv_mode,
 989		      int clock)
 990{
 991	mode->clock = clock / (tv_mode->oversample >> !tv_mode->progressive);
 992
 993	/*
 994	 * tv_mode horizontal timings:
 995	 *
 996	 * hsync_end
 997	 *    | hblank_end
 998	 *    |    | hblank_start
 999	 *    |    |       | htotal
1000	 *    |     _______    |
1001	 *     ____/       \___
1002	 * \__/                \
1003	 */
1004	mode->hdisplay =
1005		tv_mode->hblank_start - tv_mode->hblank_end;
1006	mode->hsync_start = mode->hdisplay +
1007		tv_mode->htotal - tv_mode->hblank_start;
1008	mode->hsync_end = mode->hsync_start +
1009		tv_mode->hsync_end;
1010	mode->htotal = tv_mode->htotal + 1;
1011
1012	/*
1013	 * tv_mode vertical timings:
1014	 *
1015	 * vsync_start
1016	 *    | vsync_end
1017	 *    |  | vi_end nbr_end
1018	 *    |  |    |       |
1019	 *    |  |     _______
1020	 * \__    ____/       \
1021	 *    \__/
1022	 */
1023	mode->vdisplay = intel_tv_mode_vdisplay(tv_mode);
1024	if (tv_mode->progressive) {
1025		mode->vsync_start = mode->vdisplay +
1026			tv_mode->vsync_start_f1 + 1;
1027		mode->vsync_end = mode->vsync_start +
1028			tv_mode->vsync_len;
1029		mode->vtotal = mode->vdisplay +
1030			tv_mode->vi_end_f1 + 1;
1031	} else {
1032		mode->vsync_start = mode->vdisplay +
1033			tv_mode->vsync_start_f1 + 1 +
1034			tv_mode->vsync_start_f2 + 1;
1035		mode->vsync_end = mode->vsync_start +
1036			2 * tv_mode->vsync_len;
1037		mode->vtotal = mode->vdisplay +
1038			tv_mode->vi_end_f1 + 1 +
1039			tv_mode->vi_end_f2 + 1;
1040	}
1041
1042	/* TV has it's own notion of sync and other mode flags, so clear them. */
1043	mode->flags = 0;
1044
1045	snprintf(mode->name, sizeof(mode->name),
1046		 "%dx%d%c (%s)",
1047		 mode->hdisplay, mode->vdisplay,
1048		 tv_mode->progressive ? 'p' : 'i',
1049		 tv_mode->name);
1050}
1051
1052static void intel_tv_scale_mode_horiz(struct drm_display_mode *mode,
1053				      int hdisplay, int left_margin,
1054				      int right_margin)
1055{
1056	int hsync_start = mode->hsync_start - mode->hdisplay + right_margin;
1057	int hsync_end = mode->hsync_end - mode->hdisplay + right_margin;
1058	int new_htotal = mode->htotal * hdisplay /
1059		(mode->hdisplay - left_margin - right_margin);
1060
1061	mode->clock = mode->clock * new_htotal / mode->htotal;
1062
1063	mode->hdisplay = hdisplay;
1064	mode->hsync_start = hdisplay + hsync_start * new_htotal / mode->htotal;
1065	mode->hsync_end = hdisplay + hsync_end * new_htotal / mode->htotal;
1066	mode->htotal = new_htotal;
1067}
1068
1069static void intel_tv_scale_mode_vert(struct drm_display_mode *mode,
1070				     int vdisplay, int top_margin,
1071				     int bottom_margin)
1072{
1073	int vsync_start = mode->vsync_start - mode->vdisplay + bottom_margin;
1074	int vsync_end = mode->vsync_end - mode->vdisplay + bottom_margin;
1075	int new_vtotal = mode->vtotal * vdisplay /
1076		(mode->vdisplay - top_margin - bottom_margin);
1077
1078	mode->clock = mode->clock * new_vtotal / mode->vtotal;
1079
1080	mode->vdisplay = vdisplay;
1081	mode->vsync_start = vdisplay + vsync_start * new_vtotal / mode->vtotal;
1082	mode->vsync_end = vdisplay + vsync_end * new_vtotal / mode->vtotal;
1083	mode->vtotal = new_vtotal;
1084}
1085
1086static void
1087intel_tv_get_config(struct intel_encoder *encoder,
1088		    struct intel_crtc_state *pipe_config)
1089{
1090	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1091	struct drm_display_mode *adjusted_mode =
1092		&pipe_config->hw.adjusted_mode;
1093	struct drm_display_mode mode = {};
1094	u32 tv_ctl, hctl1, hctl3, vctl1, vctl2, tmp;
1095	struct tv_mode tv_mode = {};
1096	int hdisplay = adjusted_mode->crtc_hdisplay;
1097	int vdisplay = adjusted_mode->crtc_vdisplay;
1098	int xsize, ysize, xpos, ypos;
1099
1100	pipe_config->output_types |= BIT(INTEL_OUTPUT_TVOUT);
1101
1102	tv_ctl = intel_de_read(dev_priv, TV_CTL);
1103	hctl1 = intel_de_read(dev_priv, TV_H_CTL_1);
1104	hctl3 = intel_de_read(dev_priv, TV_H_CTL_3);
1105	vctl1 = intel_de_read(dev_priv, TV_V_CTL_1);
1106	vctl2 = intel_de_read(dev_priv, TV_V_CTL_2);
1107
1108	tv_mode.htotal = (hctl1 & TV_HTOTAL_MASK) >> TV_HTOTAL_SHIFT;
1109	tv_mode.hsync_end = (hctl1 & TV_HSYNC_END_MASK) >> TV_HSYNC_END_SHIFT;
1110
1111	tv_mode.hblank_start = (hctl3 & TV_HBLANK_START_MASK) >> TV_HBLANK_START_SHIFT;
1112	tv_mode.hblank_end = (hctl3 & TV_HSYNC_END_MASK) >> TV_HBLANK_END_SHIFT;
1113
1114	tv_mode.nbr_end = (vctl1 & TV_NBR_END_MASK) >> TV_NBR_END_SHIFT;
1115	tv_mode.vi_end_f1 = (vctl1 & TV_VI_END_F1_MASK) >> TV_VI_END_F1_SHIFT;
1116	tv_mode.vi_end_f2 = (vctl1 & TV_VI_END_F2_MASK) >> TV_VI_END_F2_SHIFT;
1117
1118	tv_mode.vsync_len = (vctl2 & TV_VSYNC_LEN_MASK) >> TV_VSYNC_LEN_SHIFT;
1119	tv_mode.vsync_start_f1 = (vctl2 & TV_VSYNC_START_F1_MASK) >> TV_VSYNC_START_F1_SHIFT;
1120	tv_mode.vsync_start_f2 = (vctl2 & TV_VSYNC_START_F2_MASK) >> TV_VSYNC_START_F2_SHIFT;
1121
1122	tv_mode.clock = pipe_config->port_clock;
1123
1124	tv_mode.progressive = tv_ctl & TV_PROGRESSIVE;
1125
1126	switch (tv_ctl & TV_OVERSAMPLE_MASK) {
1127	case TV_OVERSAMPLE_8X:
1128		tv_mode.oversample = 8;
1129		break;
1130	case TV_OVERSAMPLE_4X:
1131		tv_mode.oversample = 4;
1132		break;
1133	case TV_OVERSAMPLE_2X:
1134		tv_mode.oversample = 2;
1135		break;
1136	default:
1137		tv_mode.oversample = 1;
1138		break;
1139	}
1140
1141	tmp = intel_de_read(dev_priv, TV_WIN_POS);
1142	xpos = tmp >> 16;
1143	ypos = tmp & 0xffff;
1144
1145	tmp = intel_de_read(dev_priv, TV_WIN_SIZE);
1146	xsize = tmp >> 16;
1147	ysize = tmp & 0xffff;
1148
1149	intel_tv_mode_to_mode(&mode, &tv_mode, pipe_config->port_clock);
1150
1151	drm_dbg_kms(&dev_priv->drm, "TV mode: " DRM_MODE_FMT "\n",
1152		    DRM_MODE_ARG(&mode));
1153
1154	intel_tv_scale_mode_horiz(&mode, hdisplay,
1155				  xpos, mode.hdisplay - xsize - xpos);
1156	intel_tv_scale_mode_vert(&mode, vdisplay,
1157				 ypos, mode.vdisplay - ysize - ypos);
1158
1159	adjusted_mode->crtc_clock = mode.clock;
1160	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
1161		adjusted_mode->crtc_clock /= 2;
1162
1163	/* pixel counter doesn't work on i965gm TV output */
1164	if (IS_I965GM(dev_priv))
1165		pipe_config->mode_flags |=
1166			I915_MODE_FLAG_USE_SCANLINE_COUNTER;
1167}
1168
1169static bool intel_tv_source_too_wide(struct drm_i915_private *dev_priv,
1170				     int hdisplay)
1171{
1172	return DISPLAY_VER(dev_priv) == 3 && hdisplay > 1024;
1173}
1174
1175static bool intel_tv_vert_scaling(const struct drm_display_mode *tv_mode,
1176				  const struct drm_connector_state *conn_state,
1177				  int vdisplay)
1178{
1179	return tv_mode->crtc_vdisplay -
1180		conn_state->tv.margins.top -
1181		conn_state->tv.margins.bottom !=
1182		vdisplay;
1183}
1184
1185static int
1186intel_tv_compute_config(struct intel_encoder *encoder,
1187			struct intel_crtc_state *pipe_config,
1188			struct drm_connector_state *conn_state)
1189{
1190	struct intel_atomic_state *state =
1191		to_intel_atomic_state(pipe_config->uapi.state);
1192	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
1193	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1194	struct intel_tv_connector_state *tv_conn_state =
1195		to_intel_tv_connector_state(conn_state);
1196	const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
1197	struct drm_display_mode *adjusted_mode =
1198		&pipe_config->hw.adjusted_mode;
1199	int hdisplay = adjusted_mode->crtc_hdisplay;
1200	int vdisplay = adjusted_mode->crtc_vdisplay;
1201	int ret;
1202
1203	if (!tv_mode)
1204		return -EINVAL;
1205
1206	if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
1207		return -EINVAL;
1208
 
1209	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
1210
1211	drm_dbg_kms(&dev_priv->drm, "forcing bpc to 8 for TV\n");
1212	pipe_config->pipe_bpp = 8*3;
1213
1214	pipe_config->port_clock = tv_mode->clock;
1215
1216	ret = intel_dpll_crtc_compute_clock(state, crtc);
1217	if (ret)
1218		return ret;
1219
1220	pipe_config->clock_set = true;
1221
1222	intel_tv_mode_to_mode(adjusted_mode, tv_mode, pipe_config->port_clock);
1223	drm_mode_set_crtcinfo(adjusted_mode, 0);
1224
1225	if (intel_tv_source_too_wide(dev_priv, hdisplay) ||
1226	    !intel_tv_vert_scaling(adjusted_mode, conn_state, vdisplay)) {
1227		int extra, top, bottom;
1228
1229		extra = adjusted_mode->crtc_vdisplay - vdisplay;
1230
1231		if (extra < 0) {
1232			drm_dbg_kms(&dev_priv->drm,
1233				    "No vertical scaling for >1024 pixel wide modes\n");
1234			return -EINVAL;
1235		}
1236
1237		/* Need to turn off the vertical filter and center the image */
1238
1239		/* Attempt to maintain the relative sizes of the margins */
1240		top = conn_state->tv.margins.top;
1241		bottom = conn_state->tv.margins.bottom;
1242
1243		if (top + bottom)
1244			top = extra * top / (top + bottom);
1245		else
1246			top = extra / 2;
1247		bottom = extra - top;
1248
1249		tv_conn_state->margins.top = top;
1250		tv_conn_state->margins.bottom = bottom;
1251
1252		tv_conn_state->bypass_vfilter = true;
1253
1254		if (!tv_mode->progressive) {
1255			adjusted_mode->clock /= 2;
1256			adjusted_mode->crtc_clock /= 2;
1257			adjusted_mode->flags |= DRM_MODE_FLAG_INTERLACE;
1258		}
1259	} else {
1260		tv_conn_state->margins.top = conn_state->tv.margins.top;
1261		tv_conn_state->margins.bottom = conn_state->tv.margins.bottom;
1262
1263		tv_conn_state->bypass_vfilter = false;
1264	}
1265
1266	drm_dbg_kms(&dev_priv->drm, "TV mode: " DRM_MODE_FMT "\n",
1267		    DRM_MODE_ARG(adjusted_mode));
1268
1269	/*
1270	 * The pipe scanline counter behaviour looks as follows when
1271	 * using the TV encoder:
1272	 *
1273	 * time ->
1274	 *
1275	 * dsl=vtotal-1       |             |
1276	 *                   ||            ||
1277	 *               ___| |        ___| |
1278	 *              /     |       /     |
1279	 *             /      |      /      |
1280	 * dsl=0   ___/       |_____/       |
1281	 *        | | |  |  | |
1282	 *         ^ ^ ^   ^ ^
1283	 *         | | |   | pipe vblank/first part of tv vblank
1284	 *         | | |   bottom margin
1285	 *         | | active
1286	 *         | top margin
1287	 *         remainder of tv vblank
1288	 *
1289	 * When the TV encoder is used the pipe wants to run faster
1290	 * than expected rate. During the active portion the TV
1291	 * encoder stalls the pipe every few lines to keep it in
1292	 * check. When the TV encoder reaches the bottom margin the
1293	 * pipe simply stops. Once we reach the TV vblank the pipe is
1294	 * no longer stalled and it runs at the max rate (apparently
1295	 * oversample clock on gen3, cdclk on gen4). Once the pipe
1296	 * reaches the pipe vtotal the pipe stops for the remainder
1297	 * of the TV vblank/top margin. The pipe starts up again when
1298	 * the TV encoder exits the top margin.
1299	 *
1300	 * To avoid huge hassles for vblank timestamping we scale
1301	 * the pipe timings as if the pipe always runs at the average
1302	 * rate it maintains during the active period. This also
1303	 * gives us a reasonable guesstimate as to the pixel rate.
1304	 * Due to the variation in the actual pipe speed the scanline
1305	 * counter will give us slightly erroneous results during the
1306	 * TV vblank/margins. But since vtotal was selected such that
1307	 * it matches the average rate of the pipe during the active
1308	 * portion the error shouldn't cause any serious grief to
1309	 * vblank timestamps.
1310	 *
1311	 * For posterity here is the empirically derived formula
1312	 * that gives us the maximum length of the pipe vblank
1313	 * we can use without causing display corruption. Following
1314	 * this would allow us to have a ticking scanline counter
1315	 * everywhere except during the bottom margin (there the
1316	 * pipe always stops). Ie. this would eliminate the second
1317	 * flat portion of the above graph. However this would also
1318	 * complicate vblank timestamping as the pipe vtotal would
1319	 * no longer match the average rate the pipe runs at during
1320	 * the active portion. Hence following this formula seems
1321	 * more trouble that it's worth.
1322	 *
1323	 * if (GRAPHICS_VER(dev_priv) == 4) {
1324	 *	num = cdclk * (tv_mode->oversample >> !tv_mode->progressive);
1325	 *	den = tv_mode->clock;
1326	 * } else {
1327	 *	num = tv_mode->oversample >> !tv_mode->progressive;
1328	 *	den = 1;
1329	 * }
1330	 * max_pipe_vblank_len ~=
1331	 *	(num * tv_htotal * (tv_vblank_len + top_margin)) /
1332	 *	(den * pipe_htotal);
1333	 */
1334	intel_tv_scale_mode_horiz(adjusted_mode, hdisplay,
1335				  conn_state->tv.margins.left,
1336				  conn_state->tv.margins.right);
1337	intel_tv_scale_mode_vert(adjusted_mode, vdisplay,
1338				 tv_conn_state->margins.top,
1339				 tv_conn_state->margins.bottom);
1340	drm_mode_set_crtcinfo(adjusted_mode, 0);
1341	adjusted_mode->name[0] = '\0';
1342
1343	/* pixel counter doesn't work on i965gm TV output */
1344	if (IS_I965GM(dev_priv))
1345		pipe_config->mode_flags |=
1346			I915_MODE_FLAG_USE_SCANLINE_COUNTER;
1347
1348	return 0;
1349}
1350
1351static void
1352set_tv_mode_timings(struct drm_i915_private *dev_priv,
1353		    const struct tv_mode *tv_mode,
1354		    bool burst_ena)
1355{
1356	u32 hctl1, hctl2, hctl3;
1357	u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
1358
1359	hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
1360		(tv_mode->htotal << TV_HTOTAL_SHIFT);
1361
1362	hctl2 = (tv_mode->hburst_start << 16) |
1363		(tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
1364
1365	if (burst_ena)
1366		hctl2 |= TV_BURST_ENA;
1367
1368	hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
1369		(tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
1370
1371	vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
1372		(tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
1373		(tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
1374
1375	vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
1376		(tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
1377		(tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
1378
1379	vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
1380		(tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
1381		(tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
1382
1383	if (tv_mode->veq_ena)
1384		vctl3 |= TV_EQUAL_ENA;
1385
1386	vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
1387		(tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
1388
1389	vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
1390		(tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
1391
1392	vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
1393		(tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
1394
1395	vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
1396		(tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
1397
1398	intel_de_write(dev_priv, TV_H_CTL_1, hctl1);
1399	intel_de_write(dev_priv, TV_H_CTL_2, hctl2);
1400	intel_de_write(dev_priv, TV_H_CTL_3, hctl3);
1401	intel_de_write(dev_priv, TV_V_CTL_1, vctl1);
1402	intel_de_write(dev_priv, TV_V_CTL_2, vctl2);
1403	intel_de_write(dev_priv, TV_V_CTL_3, vctl3);
1404	intel_de_write(dev_priv, TV_V_CTL_4, vctl4);
1405	intel_de_write(dev_priv, TV_V_CTL_5, vctl5);
1406	intel_de_write(dev_priv, TV_V_CTL_6, vctl6);
1407	intel_de_write(dev_priv, TV_V_CTL_7, vctl7);
1408}
1409
1410static void set_color_conversion(struct drm_i915_private *dev_priv,
1411				 const struct color_conversion *color_conversion)
1412{
1413	if (!color_conversion)
1414		return;
1415
1416	intel_de_write(dev_priv, TV_CSC_Y,
1417		       (color_conversion->ry << 16) | color_conversion->gy);
1418	intel_de_write(dev_priv, TV_CSC_Y2,
1419		       (color_conversion->by << 16) | color_conversion->ay);
1420	intel_de_write(dev_priv, TV_CSC_U,
1421		       (color_conversion->ru << 16) | color_conversion->gu);
1422	intel_de_write(dev_priv, TV_CSC_U2,
1423		       (color_conversion->bu << 16) | color_conversion->au);
1424	intel_de_write(dev_priv, TV_CSC_V,
1425		       (color_conversion->rv << 16) | color_conversion->gv);
1426	intel_de_write(dev_priv, TV_CSC_V2,
1427		       (color_conversion->bv << 16) | color_conversion->av);
1428}
1429
1430static void intel_tv_pre_enable(struct intel_atomic_state *state,
1431				struct intel_encoder *encoder,
1432				const struct intel_crtc_state *pipe_config,
1433				const struct drm_connector_state *conn_state)
1434{
1435	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1436	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
1437	struct intel_tv *intel_tv = enc_to_tv(encoder);
1438	const struct intel_tv_connector_state *tv_conn_state =
1439		to_intel_tv_connector_state(conn_state);
1440	const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
1441	u32 tv_ctl, tv_filter_ctl;
1442	u32 scctl1, scctl2, scctl3;
1443	int i, j;
1444	const struct video_levels *video_levels;
1445	const struct color_conversion *color_conversion;
1446	bool burst_ena;
1447	int xpos, ypos;
1448	unsigned int xsize, ysize;
1449
1450	if (!tv_mode)
1451		return;	/* can't happen (mode_prepare prevents this) */
1452
1453	tv_ctl = intel_de_read(dev_priv, TV_CTL);
1454	tv_ctl &= TV_CTL_SAVE;
1455
1456	switch (intel_tv->type) {
1457	default:
1458	case DRM_MODE_CONNECTOR_Unknown:
1459	case DRM_MODE_CONNECTOR_Composite:
1460		tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1461		video_levels = tv_mode->composite_levels;
1462		color_conversion = tv_mode->composite_color;
1463		burst_ena = tv_mode->burst_ena;
1464		break;
1465	case DRM_MODE_CONNECTOR_Component:
1466		tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1467		video_levels = &component_levels;
1468		if (tv_mode->burst_ena)
1469			color_conversion = &sdtv_csc_yprpb;
1470		else
1471			color_conversion = &hdtv_csc_yprpb;
1472		burst_ena = false;
1473		break;
1474	case DRM_MODE_CONNECTOR_SVIDEO:
1475		tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1476		video_levels = tv_mode->svideo_levels;
1477		color_conversion = tv_mode->svideo_color;
1478		burst_ena = tv_mode->burst_ena;
1479		break;
1480	}
1481
1482	tv_ctl |= TV_ENC_PIPE_SEL(crtc->pipe);
1483
1484	switch (tv_mode->oversample) {
1485	case 8:
1486		tv_ctl |= TV_OVERSAMPLE_8X;
1487		break;
1488	case 4:
1489		tv_ctl |= TV_OVERSAMPLE_4X;
1490		break;
1491	case 2:
1492		tv_ctl |= TV_OVERSAMPLE_2X;
1493		break;
1494	default:
1495		tv_ctl |= TV_OVERSAMPLE_NONE;
1496		break;
1497	}
1498
1499	if (tv_mode->progressive)
1500		tv_ctl |= TV_PROGRESSIVE;
1501	if (tv_mode->trilevel_sync)
1502		tv_ctl |= TV_TRILEVEL_SYNC;
1503	if (tv_mode->pal_burst)
1504		tv_ctl |= TV_PAL_BURST;
1505
1506	scctl1 = 0;
1507	if (tv_mode->dda1_inc)
1508		scctl1 |= TV_SC_DDA1_EN;
1509	if (tv_mode->dda2_inc)
1510		scctl1 |= TV_SC_DDA2_EN;
1511	if (tv_mode->dda3_inc)
1512		scctl1 |= TV_SC_DDA3_EN;
1513	scctl1 |= tv_mode->sc_reset;
1514	if (video_levels)
1515		scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1516	scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1517
1518	scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1519		tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1520
1521	scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1522		tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1523
1524	/* Enable two fixes for the chips that need them. */
1525	if (IS_I915GM(dev_priv))
1526		tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1527
1528	set_tv_mode_timings(dev_priv, tv_mode, burst_ena);
1529
1530	intel_de_write(dev_priv, TV_SC_CTL_1, scctl1);
1531	intel_de_write(dev_priv, TV_SC_CTL_2, scctl2);
1532	intel_de_write(dev_priv, TV_SC_CTL_3, scctl3);
1533
1534	set_color_conversion(dev_priv, color_conversion);
1535
1536	if (DISPLAY_VER(dev_priv) >= 4)
1537		intel_de_write(dev_priv, TV_CLR_KNOBS, 0x00404000);
1538	else
1539		intel_de_write(dev_priv, TV_CLR_KNOBS, 0x00606000);
1540
1541	if (video_levels)
1542		intel_de_write(dev_priv, TV_CLR_LEVEL,
1543			       ((video_levels->black << TV_BLACK_LEVEL_SHIFT) | (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1544
1545	assert_transcoder_disabled(dev_priv, pipe_config->cpu_transcoder);
1546
1547	/* Filter ctl must be set before TV_WIN_SIZE */
1548	tv_filter_ctl = TV_AUTO_SCALE;
1549	if (tv_conn_state->bypass_vfilter)
1550		tv_filter_ctl |= TV_V_FILTER_BYPASS;
1551	intel_de_write(dev_priv, TV_FILTER_CTL_1, tv_filter_ctl);
1552
1553	xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1554	ysize = intel_tv_mode_vdisplay(tv_mode);
1555
1556	xpos = conn_state->tv.margins.left;
1557	ypos = tv_conn_state->margins.top;
1558	xsize -= (conn_state->tv.margins.left +
1559		  conn_state->tv.margins.right);
1560	ysize -= (tv_conn_state->margins.top +
1561		  tv_conn_state->margins.bottom);
1562	intel_de_write(dev_priv, TV_WIN_POS, (xpos << 16) | ypos);
1563	intel_de_write(dev_priv, TV_WIN_SIZE, (xsize << 16) | ysize);
1564
1565	j = 0;
1566	for (i = 0; i < 60; i++)
1567		intel_de_write(dev_priv, TV_H_LUMA(i),
1568			       tv_mode->filter_table[j++]);
1569	for (i = 0; i < 60; i++)
1570		intel_de_write(dev_priv, TV_H_CHROMA(i),
1571			       tv_mode->filter_table[j++]);
1572	for (i = 0; i < 43; i++)
1573		intel_de_write(dev_priv, TV_V_LUMA(i),
1574			       tv_mode->filter_table[j++]);
1575	for (i = 0; i < 43; i++)
1576		intel_de_write(dev_priv, TV_V_CHROMA(i),
1577			       tv_mode->filter_table[j++]);
1578	intel_de_write(dev_priv, TV_DAC,
1579		       intel_de_read(dev_priv, TV_DAC) & TV_DAC_SAVE);
1580	intel_de_write(dev_priv, TV_CTL, tv_ctl);
1581}
1582
1583static int
1584intel_tv_detect_type(struct intel_tv *intel_tv,
1585		      struct drm_connector *connector)
1586{
1587	struct intel_crtc *crtc = to_intel_crtc(connector->state->crtc);
1588	struct drm_device *dev = connector->dev;
1589	struct drm_i915_private *dev_priv = to_i915(dev);
1590	u32 tv_ctl, save_tv_ctl;
1591	u32 tv_dac, save_tv_dac;
1592	int type;
1593
1594	/* Disable TV interrupts around load detect or we'll recurse */
1595	if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1596		spin_lock_irq(&dev_priv->irq_lock);
1597		i915_disable_pipestat(dev_priv, 0,
1598				      PIPE_HOTPLUG_INTERRUPT_STATUS |
1599				      PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1600		spin_unlock_irq(&dev_priv->irq_lock);
1601	}
1602
1603	save_tv_dac = tv_dac = intel_de_read(dev_priv, TV_DAC);
1604	save_tv_ctl = tv_ctl = intel_de_read(dev_priv, TV_CTL);
1605
1606	/* Poll for TV detection */
1607	tv_ctl &= ~(TV_ENC_ENABLE | TV_ENC_PIPE_SEL_MASK | TV_TEST_MODE_MASK);
1608	tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1609	tv_ctl |= TV_ENC_PIPE_SEL(crtc->pipe);
1610
1611	tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1612	tv_dac |= (TVDAC_STATE_CHG_EN |
1613		   TVDAC_A_SENSE_CTL |
1614		   TVDAC_B_SENSE_CTL |
1615		   TVDAC_C_SENSE_CTL |
1616		   DAC_CTL_OVERRIDE |
1617		   DAC_A_0_7_V |
1618		   DAC_B_0_7_V |
1619		   DAC_C_0_7_V);
1620
1621
1622	/*
1623	 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1624	 * the TV is misdetected. This is hardware requirement.
1625	 */
1626	if (IS_GM45(dev_priv))
1627		tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1628			    TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1629
1630	intel_de_write(dev_priv, TV_CTL, tv_ctl);
1631	intel_de_write(dev_priv, TV_DAC, tv_dac);
1632	intel_de_posting_read(dev_priv, TV_DAC);
1633
1634	intel_crtc_wait_for_next_vblank(crtc);
1635
1636	type = -1;
1637	tv_dac = intel_de_read(dev_priv, TV_DAC);
1638	drm_dbg_kms(&dev_priv->drm, "TV detected: %x, %x\n", tv_ctl, tv_dac);
1639	/*
1640	 *  A B C
1641	 *  0 1 1 Composite
1642	 *  1 0 X svideo
1643	 *  0 0 0 Component
1644	 */
1645	if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1646		drm_dbg_kms(&dev_priv->drm,
1647			    "Detected Composite TV connection\n");
1648		type = DRM_MODE_CONNECTOR_Composite;
1649	} else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1650		drm_dbg_kms(&dev_priv->drm,
1651			    "Detected S-Video TV connection\n");
1652		type = DRM_MODE_CONNECTOR_SVIDEO;
1653	} else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1654		drm_dbg_kms(&dev_priv->drm,
1655			    "Detected Component TV connection\n");
1656		type = DRM_MODE_CONNECTOR_Component;
1657	} else {
1658		drm_dbg_kms(&dev_priv->drm, "Unrecognised TV connection\n");
1659		type = -1;
1660	}
1661
1662	intel_de_write(dev_priv, TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1663	intel_de_write(dev_priv, TV_CTL, save_tv_ctl);
1664	intel_de_posting_read(dev_priv, TV_CTL);
1665
1666	/* For unknown reasons the hw barfs if we don't do this vblank wait. */
1667	intel_crtc_wait_for_next_vblank(crtc);
1668
1669	/* Restore interrupt config */
1670	if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1671		spin_lock_irq(&dev_priv->irq_lock);
1672		i915_enable_pipestat(dev_priv, 0,
1673				     PIPE_HOTPLUG_INTERRUPT_STATUS |
1674				     PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1675		spin_unlock_irq(&dev_priv->irq_lock);
1676	}
1677
1678	return type;
1679}
1680
1681/*
1682 * Here we set accurate tv format according to connector type
1683 * i.e Component TV should not be assigned by NTSC or PAL
1684 */
1685static void intel_tv_find_better_format(struct drm_connector *connector)
1686{
1687	struct intel_tv *intel_tv = intel_attached_tv(to_intel_connector(connector));
1688	const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
1689	int i;
1690
1691	/* Component supports everything so we can keep the current mode */
1692	if (intel_tv->type == DRM_MODE_CONNECTOR_Component)
1693		return;
1694
1695	/* If the current mode is fine don't change it */
1696	if (!tv_mode->component_only)
1697		return;
1698
1699	for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
1700		tv_mode = &tv_modes[i];
1701
1702		if (!tv_mode->component_only)
1703			break;
1704	}
1705
1706	connector->state->tv.mode = i;
1707}
1708
1709static int
1710intel_tv_detect(struct drm_connector *connector,
1711		struct drm_modeset_acquire_ctx *ctx,
1712		bool force)
1713{
1714	struct drm_i915_private *i915 = to_i915(connector->dev);
1715	struct intel_tv *intel_tv = intel_attached_tv(to_intel_connector(connector));
1716	enum drm_connector_status status;
1717	int type;
1718
1719	drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] force=%d\n",
1720		    connector->base.id, connector->name, force);
1721
1722	if (!INTEL_DISPLAY_ENABLED(i915))
1723		return connector_status_disconnected;
1724
1725	if (force) {
1726		struct intel_load_detect_pipe tmp;
1727		int ret;
1728
1729		ret = intel_get_load_detect_pipe(connector, &tmp, ctx);
1730		if (ret < 0)
1731			return ret;
1732
1733		if (ret > 0) {
1734			type = intel_tv_detect_type(intel_tv, connector);
1735			intel_release_load_detect_pipe(connector, &tmp, ctx);
1736			status = type < 0 ?
1737				connector_status_disconnected :
1738				connector_status_connected;
1739		} else
1740			status = connector_status_unknown;
 
1741
1742		if (status == connector_status_connected) {
1743			intel_tv->type = type;
1744			intel_tv_find_better_format(connector);
1745		}
1746
1747		return status;
1748	} else
1749		return connector->status;
1750}
1751
1752static const struct input_res {
1753	u16 w, h;
1754} input_res_table[] = {
1755	{ 640, 480 },
1756	{ 800, 600 },
1757	{ 1024, 768 },
1758	{ 1280, 1024 },
1759	{ 848, 480 },
1760	{ 1280, 720 },
1761	{ 1920, 1080 },
1762};
1763
1764/* Choose preferred mode according to line number of TV format */
1765static bool
1766intel_tv_is_preferred_mode(const struct drm_display_mode *mode,
1767			   const struct tv_mode *tv_mode)
1768{
1769	int vdisplay = intel_tv_mode_vdisplay(tv_mode);
1770
1771	/* prefer 480 line modes for all SD TV modes */
1772	if (vdisplay <= 576)
1773		vdisplay = 480;
1774
1775	return vdisplay == mode->vdisplay;
1776}
1777
1778static void
1779intel_tv_set_mode_type(struct drm_display_mode *mode,
1780		       const struct tv_mode *tv_mode)
1781{
1782	mode->type = DRM_MODE_TYPE_DRIVER;
1783
1784	if (intel_tv_is_preferred_mode(mode, tv_mode))
1785		mode->type |= DRM_MODE_TYPE_PREFERRED;
1786}
1787
1788static int
1789intel_tv_get_modes(struct drm_connector *connector)
1790{
1791	struct drm_i915_private *dev_priv = to_i915(connector->dev);
1792	const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
1793	int i, count = 0;
1794
1795	for (i = 0; i < ARRAY_SIZE(input_res_table); i++) {
1796		const struct input_res *input = &input_res_table[i];
1797		struct drm_display_mode *mode;
1798
1799		if (input->w > 1024 &&
1800		    !tv_mode->progressive &&
1801		    !tv_mode->component_only)
1802			continue;
1803
1804		/* no vertical scaling with wide sources on gen3 */
1805		if (DISPLAY_VER(dev_priv) == 3 && input->w > 1024 &&
1806		    input->h > intel_tv_mode_vdisplay(tv_mode))
1807			continue;
1808
1809		mode = drm_mode_create(connector->dev);
1810		if (!mode)
1811			continue;
1812
1813		/*
1814		 * We take the TV mode and scale it to look
1815		 * like it had the expected h/vdisplay. This
1816		 * provides the most information to userspace
1817		 * about the actual timings of the mode. We
1818		 * do ignore the margins though.
1819		 */
1820		intel_tv_mode_to_mode(mode, tv_mode, tv_mode->clock);
1821		if (count == 0) {
1822			drm_dbg_kms(&dev_priv->drm, "TV mode: " DRM_MODE_FMT "\n",
1823				    DRM_MODE_ARG(mode));
1824		}
1825		intel_tv_scale_mode_horiz(mode, input->w, 0, 0);
1826		intel_tv_scale_mode_vert(mode, input->h, 0, 0);
1827		intel_tv_set_mode_type(mode, tv_mode);
1828
1829		drm_mode_set_name(mode);
1830
1831		drm_mode_probed_add(connector, mode);
1832		count++;
1833	}
1834
1835	return count;
1836}
1837
1838static const struct drm_connector_funcs intel_tv_connector_funcs = {
1839	.late_register = intel_connector_register,
1840	.early_unregister = intel_connector_unregister,
1841	.destroy = intel_connector_destroy,
1842	.fill_modes = drm_helper_probe_single_connector_modes,
1843	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1844	.atomic_duplicate_state = intel_tv_connector_duplicate_state,
1845};
1846
1847static int intel_tv_atomic_check(struct drm_connector *connector,
1848				 struct drm_atomic_state *state)
1849{
1850	struct drm_connector_state *new_state;
1851	struct drm_crtc_state *new_crtc_state;
1852	struct drm_connector_state *old_state;
1853
1854	new_state = drm_atomic_get_new_connector_state(state, connector);
1855	if (!new_state->crtc)
1856		return 0;
1857
1858	old_state = drm_atomic_get_old_connector_state(state, connector);
1859	new_crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc);
1860
1861	if (old_state->tv.mode != new_state->tv.mode ||
1862	    old_state->tv.margins.left != new_state->tv.margins.left ||
1863	    old_state->tv.margins.right != new_state->tv.margins.right ||
1864	    old_state->tv.margins.top != new_state->tv.margins.top ||
1865	    old_state->tv.margins.bottom != new_state->tv.margins.bottom) {
1866		/* Force a modeset. */
1867
1868		new_crtc_state->connectors_changed = true;
1869	}
1870
1871	return 0;
1872}
1873
1874static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1875	.detect_ctx = intel_tv_detect,
1876	.mode_valid = intel_tv_mode_valid,
1877	.get_modes = intel_tv_get_modes,
1878	.atomic_check = intel_tv_atomic_check,
1879};
1880
1881static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1882	.destroy = intel_encoder_destroy,
1883};
1884
1885static void intel_tv_add_properties(struct drm_connector *connector)
1886{
1887	struct drm_i915_private *i915 = to_i915(connector->dev);
1888	struct drm_connector_state *conn_state = connector->state;
1889	const char *tv_format_names[ARRAY_SIZE(tv_modes)];
1890	int i;
1891
1892	/* BIOS margin values */
1893	conn_state->tv.margins.left = 54;
1894	conn_state->tv.margins.top = 36;
1895	conn_state->tv.margins.right = 46;
1896	conn_state->tv.margins.bottom = 37;
1897
1898	conn_state->tv.mode = 0;
1899
1900	/* Create TV properties then attach current values */
1901	for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
1902		/* 1080p50/1080p60 not supported on gen3 */
1903		if (DISPLAY_VER(i915) == 3 && tv_modes[i].oversample == 1)
1904			break;
1905
1906		tv_format_names[i] = tv_modes[i].name;
1907	}
1908	drm_mode_create_tv_properties(&i915->drm, i, tv_format_names);
1909
1910	drm_object_attach_property(&connector->base,
1911				   i915->drm.mode_config.tv_mode_property,
1912				   conn_state->tv.mode);
1913	drm_object_attach_property(&connector->base,
1914				   i915->drm.mode_config.tv_left_margin_property,
1915				   conn_state->tv.margins.left);
1916	drm_object_attach_property(&connector->base,
1917				   i915->drm.mode_config.tv_top_margin_property,
1918				   conn_state->tv.margins.top);
1919	drm_object_attach_property(&connector->base,
1920				   i915->drm.mode_config.tv_right_margin_property,
1921				   conn_state->tv.margins.right);
1922	drm_object_attach_property(&connector->base,
1923				   i915->drm.mode_config.tv_bottom_margin_property,
1924				   conn_state->tv.margins.bottom);
1925}
1926
1927void
1928intel_tv_init(struct drm_i915_private *dev_priv)
1929{
1930	struct drm_connector *connector;
1931	struct intel_tv *intel_tv;
1932	struct intel_encoder *intel_encoder;
1933	struct intel_connector *intel_connector;
1934	u32 tv_dac_on, tv_dac_off, save_tv_dac;
1935
1936	if ((intel_de_read(dev_priv, TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1937		return;
1938
1939	if (!intel_bios_is_tv_present(dev_priv)) {
1940		drm_dbg_kms(&dev_priv->drm, "Integrated TV is not present.\n");
1941		return;
1942	}
1943
1944	/*
1945	 * Sanity check the TV output by checking to see if the
1946	 * DAC register holds a value
1947	 */
1948	save_tv_dac = intel_de_read(dev_priv, TV_DAC);
1949
1950	intel_de_write(dev_priv, TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1951	tv_dac_on = intel_de_read(dev_priv, TV_DAC);
1952
1953	intel_de_write(dev_priv, TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1954	tv_dac_off = intel_de_read(dev_priv, TV_DAC);
1955
1956	intel_de_write(dev_priv, TV_DAC, save_tv_dac);
1957
1958	/*
1959	 * If the register does not hold the state change enable
1960	 * bit, (either as a 0 or a 1), assume it doesn't really
1961	 * exist
1962	 */
1963	if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1964	    (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1965		return;
1966
1967	intel_tv = kzalloc(sizeof(*intel_tv), GFP_KERNEL);
1968	if (!intel_tv) {
1969		return;
1970	}
1971
1972	intel_connector = intel_connector_alloc();
1973	if (!intel_connector) {
1974		kfree(intel_tv);
1975		return;
1976	}
1977
1978	intel_encoder = &intel_tv->base;
1979	connector = &intel_connector->base;
1980
1981	/*
1982	 * The documentation, for the older chipsets at least, recommend
1983	 * using a polling method rather than hotplug detection for TVs.
1984	 * This is because in order to perform the hotplug detection, the PLLs
1985	 * for the TV must be kept alive increasing power drain and starving
1986	 * bandwidth from other encoders. Notably for instance, it causes
1987	 * pipe underruns on Crestline when this encoder is supposedly idle.
1988	 *
1989	 * More recent chipsets favour HDMI rather than integrated S-Video.
1990	 */
1991	intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1992
1993	drm_connector_init(&dev_priv->drm, connector, &intel_tv_connector_funcs,
1994			   DRM_MODE_CONNECTOR_SVIDEO);
1995
1996	drm_encoder_init(&dev_priv->drm, &intel_encoder->base, &intel_tv_enc_funcs,
1997			 DRM_MODE_ENCODER_TVDAC, "TV");
1998
1999	intel_encoder->compute_config = intel_tv_compute_config;
2000	intel_encoder->get_config = intel_tv_get_config;
2001	intel_encoder->pre_enable = intel_tv_pre_enable;
2002	intel_encoder->enable = intel_enable_tv;
2003	intel_encoder->disable = intel_disable_tv;
2004	intel_encoder->get_hw_state = intel_tv_get_hw_state;
2005	intel_connector->get_hw_state = intel_connector_get_hw_state;
2006
2007	intel_connector_attach_encoder(intel_connector, intel_encoder);
2008
2009	intel_encoder->type = INTEL_OUTPUT_TVOUT;
2010	intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
2011	intel_encoder->port = PORT_NONE;
2012	intel_encoder->pipe_mask = ~0;
2013	intel_encoder->cloneable = 0;
2014	intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
2015
2016	drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
2017
2018	intel_tv_add_properties(connector);
2019}