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/*
* Copyright © 2006-2008 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/

/** @file
* Integrated TV-out support for the 915GM and 945GM.
*/

#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_edid.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"

enum tv_margin {
TV_MARGIN_LEFT, TV_MARGIN_TOP,
TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
};

/** Private structure for the integrated TV support */
struct intel_tv_priv {
int type;
char *tv_format;
int margin[4];
u32 save_TV_H_CTL_1;
u32 save_TV_H_CTL_2;
u32 save_TV_H_CTL_3;
u32 save_TV_V_CTL_1;
u32 save_TV_V_CTL_2;
u32 save_TV_V_CTL_3;
u32 save_TV_V_CTL_4;
u32 save_TV_V_CTL_5;
u32 save_TV_V_CTL_6;
u32 save_TV_V_CTL_7;
u32 save_TV_SC_CTL_1, save_TV_SC_CTL_2, save_TV_SC_CTL_3;

u32 save_TV_CSC_Y;
u32 save_TV_CSC_Y2;
u32 save_TV_CSC_U;
u32 save_TV_CSC_U2;
u32 save_TV_CSC_V;
u32 save_TV_CSC_V2;
u32 save_TV_CLR_KNOBS;
u32 save_TV_CLR_LEVEL;
u32 save_TV_WIN_POS;
u32 save_TV_WIN_SIZE;
u32 save_TV_FILTER_CTL_1;
u32 save_TV_FILTER_CTL_2;
u32 save_TV_FILTER_CTL_3;

u32 save_TV_H_LUMA[60];
u32 save_TV_H_CHROMA[60];
u32 save_TV_V_LUMA[43];
u32 save_TV_V_CHROMA[43];

u32 save_TV_DAC;
u32 save_TV_CTL;
};

struct video_levels {
int blank, black, burst;
};

struct color_conversion {
u16 ry, gy, by, ay;
u16 ru, gu, bu, au;
u16 rv, gv, bv, av;
};

static const u32 filter_table[] = {
0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
0x28003100, 0x28002F00, 0x00003100, 0x36403000,
0x2D002CC0, 0x30003640, 0x2D0036C0,
0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
0x28003100, 0x28002F00, 0x00003100,
};

/*
* Color conversion values have 3 separate fixed point formats:
*
* 10 bit fields (ay, au)
* 1.9 fixed point (b.bbbbbbbbb)
* 11 bit fields (ry, by, ru, gu, gv)
* exp.mantissa (ee.mmmmmmmmm)
* ee = 00 = 10^-1 (0.mmmmmmmmm)
* ee = 01 = 10^-2 (0.0mmmmmmmmm)
* ee = 10 = 10^-3 (0.00mmmmmmmmm)
* ee = 11 = 10^-4 (0.000mmmmmmmmm)
* 12 bit fields (gy, rv, bu)
* exp.mantissa (eee.mmmmmmmmm)
* eee = 000 = 10^-1 (0.mmmmmmmmm)
* eee = 001 = 10^-2 (0.0mmmmmmmmm)
* eee = 010 = 10^-3 (0.00mmmmmmmmm)
* eee = 011 = 10^-4 (0.000mmmmmmmmm)
* eee = 100 = reserved
* eee = 101 = reserved
* eee = 110 = reserved
* eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
*
* Saturation and contrast are 8 bits, with their own representation:
* 8 bit field (saturation, contrast)
* exp.mantissa (ee.mmmmmm)
* ee = 00 = 10^-1 (0.mmmmmm)
* ee = 01 = 10^0 (m.mmmmm)
* ee = 10 = 10^1 (mm.mmmm)
* ee = 11 = 10^2 (mmm.mmm)
*
* Simple conversion function:
*
* static u32
* float_to_csc_11(float f)
* {
* u32 exp;
* u32 mant;
* u32 ret;
*
* if (f < 0)
* f = -f;
*
* if (f >= 1) {
* exp = 0x7;
* mant = 1 << 8;
* } else {
* for (exp = 0; exp < 3 && f < 0.5; exp++)
* f *= 2.0;
* mant = (f * (1 << 9) + 0.5);
* if (mant >= (1 << 9))
* mant = (1 << 9) - 1;
* }
* ret = (exp << 9) | mant;
* return ret;
* }
*/

/*
* Behold, magic numbers! If we plant them they might grow a big
* s-video cable to the sky... or something.
*
* Pre-converted to appropriate hex value.
*/

/*
* PAL & NTSC values for composite & s-video connections
*/
static const struct color_conversion ntsc_m_csc_composite = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
};

static const struct video_levels ntsc_m_levels_composite = {
.blank = 225, .black = 267, .burst = 113,
};

static const struct color_conversion ntsc_m_csc_svideo = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
};

static const struct video_levels ntsc_m_levels_svideo = {
.blank = 266, .black = 316, .burst = 133,
};

static const struct color_conversion ntsc_j_csc_composite = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
.ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
.rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
};

static const struct video_levels ntsc_j_levels_composite = {
.blank = 225, .black = 225, .burst = 113,
};

static const struct color_conversion ntsc_j_csc_svideo = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
.ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
.rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
};

static const struct video_levels ntsc_j_levels_svideo = {
.blank = 266, .black = 266, .burst = 133,
};

static const struct color_conversion pal_csc_composite = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
.ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
.rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
};

static const struct video_levels pal_levels_composite = {
.blank = 237, .black = 237, .burst = 118,
};

static const struct color_conversion pal_csc_svideo = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
.ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
.rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
};

static const struct video_levels pal_levels_svideo = {
.blank = 280, .black = 280, .burst = 139,
};

static const struct color_conversion pal_m_csc_composite = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
};

static const struct video_levels pal_m_levels_composite = {
.blank = 225, .black = 267, .burst = 113,
};

static const struct color_conversion pal_m_csc_svideo = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
};

static const struct video_levels pal_m_levels_svideo = {
.blank = 266, .black = 316, .burst = 133,
};

static const struct color_conversion pal_n_csc_composite = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
.ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
.rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
};

static const struct video_levels pal_n_levels_composite = {
.blank = 225, .black = 267, .burst = 118,
};

static const struct color_conversion pal_n_csc_svideo = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
.ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
.rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
};

static const struct video_levels pal_n_levels_svideo = {
.blank = 266, .black = 316, .burst = 139,
};

/*
* Component connections
*/
static const struct color_conversion sdtv_csc_yprpb = {
.ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
.ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
.rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
};

static const struct color_conversion sdtv_csc_rgb = {
.ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
.ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
.rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
};

static const struct color_conversion hdtv_csc_yprpb = {
.ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
.ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
.rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
};

static const struct color_conversion hdtv_csc_rgb = {
.ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
.ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
.rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
};

static const struct video_levels component_levels = {
.blank = 279, .black = 279, .burst = 0,
};


struct tv_mode {
char *name;
int clock;
int refresh; /* in millihertz (for precision) */
u32 oversample;
int hsync_end, hblank_start, hblank_end, htotal;
bool progressive, trilevel_sync, component_only;
int vsync_start_f1, vsync_start_f2, vsync_len;
bool veq_ena;
int veq_start_f1, veq_start_f2, veq_len;
int vi_end_f1, vi_end_f2, nbr_end;
bool burst_ena;
int hburst_start, hburst_len;
int vburst_start_f1, vburst_end_f1;
int vburst_start_f2, vburst_end_f2;
int vburst_start_f3, vburst_end_f3;
int vburst_start_f4, vburst_end_f4;
/*
* subcarrier programming
*/
int dda2_size, dda3_size, dda1_inc, dda2_inc, dda3_inc;
u32 sc_reset;
bool pal_burst;
/*
* blank/black levels
*/
const struct video_levels *composite_levels, *svideo_levels;
const struct color_conversion *composite_color, *svideo_color;
const u32 *filter_table;
int max_srcw;
};


/*
* Sub carrier DDA
*
* I think this works as follows:
*
* subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
*
* Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
*
* So,
* dda1_ideal = subcarrier/pixel * 4096
* dda1_inc = floor (dda1_ideal)
* dda2 = dda1_ideal - dda1_inc
*
* then pick a ratio for dda2 that gives the closest approximation. If
* you can't get close enough, you can play with dda3 as well. This
* seems likely to happen when dda2 is small as the jumps would be larger
*
* To invert this,
*
* pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
*
* The constants below were all computed using a 107.520MHz clock
*/

/**
* Register programming values for TV modes.
*
* These values account for -1s required.
*/

static const struct tv_mode tv_modes[] = {
{
.name = "NTSC-M",
.clock = 108000,
.refresh = 29970,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,
/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */

.hsync_end = 64, .hblank_end = 124,
.hblank_start = 836, .htotal = 857,

.progressive = false, .trilevel_sync = false,

.vsync_start_f1 = 6, .vsync_start_f2 = 7,
.vsync_len = 6,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 18,

.vi_end_f1 = 20, .vi_end_f2 = 21,
.nbr_end = 240,

.burst_ena = true,
.hburst_start = 72, .hburst_len = 34,
.vburst_start_f1 = 9, .vburst_end_f1 = 240,
.vburst_start_f2 = 10, .vburst_end_f2 = 240,
.vburst_start_f3 = 9, .vburst_end_f3 = 240,
.vburst_start_f4 = 10, .vburst_end_f4 = 240,

/* desired 3.5800000 actual 3.5800000 clock 107.52 */
.dda1_inc = 135,
.dda2_inc = 20800, .dda2_size = 27456,
.dda3_inc = 0, .dda3_size = 0,
.sc_reset = TV_SC_RESET_EVERY_4,
.pal_burst = false,

.composite_levels = &ntsc_m_levels_composite,
.composite_color = &ntsc_m_csc_composite,
.svideo_levels = &ntsc_m_levels_svideo,
.svideo_color = &ntsc_m_csc_svideo,

.filter_table = filter_table,
},
{
.name = "NTSC-443",
.clock = 108000,
.refresh = 29970,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,
/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
.hsync_end = 64, .hblank_end = 124,
.hblank_start = 836, .htotal = 857,

.progressive = false, .trilevel_sync = false,

.vsync_start_f1 = 6, .vsync_start_f2 = 7,
.vsync_len = 6,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 18,

.vi_end_f1 = 20, .vi_end_f2 = 21,
.nbr_end = 240,

.burst_ena = 8,
.hburst_start = 72, .hburst_len = 34,
.vburst_start_f1 = 9, .vburst_end_f1 = 240,
.vburst_start_f2 = 10, .vburst_end_f2 = 240,
.vburst_start_f3 = 9, .vburst_end_f3 = 240,
.vburst_start_f4 = 10, .vburst_end_f4 = 240,

/* desired 4.4336180 actual 4.4336180 clock 107.52 */
.dda1_inc = 168,
.dda2_inc = 4093, .dda2_size = 27456,
.dda3_inc = 310, .dda3_size = 525,
.sc_reset = TV_SC_RESET_NEVER,
.pal_burst = false,

.composite_levels = &ntsc_m_levels_composite,
.composite_color = &ntsc_m_csc_composite,
.svideo_levels = &ntsc_m_levels_svideo,
.svideo_color = &ntsc_m_csc_svideo,

.filter_table = filter_table,
},
{
.name = "NTSC-J",
.clock = 108000,
.refresh = 29970,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,

/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
.hsync_end = 64, .hblank_end = 124,
.hblank_start = 836, .htotal = 857,

.progressive = false, .trilevel_sync = false,

.vsync_start_f1 = 6, .vsync_start_f2 = 7,
.vsync_len = 6,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 18,

.vi_end_f1 = 20, .vi_end_f2 = 21,
.nbr_end = 240,

.burst_ena = true,
.hburst_start = 72, .hburst_len = 34,
.vburst_start_f1 = 9, .vburst_end_f1 = 240,
.vburst_start_f2 = 10, .vburst_end_f2 = 240,
.vburst_start_f3 = 9, .vburst_end_f3 = 240,
.vburst_start_f4 = 10, .vburst_end_f4 = 240,

/* desired 3.5800000 actual 3.5800000 clock 107.52 */
.dda1_inc = 135,
.dda2_inc = 20800, .dda2_size = 27456,
.dda3_inc = 0, .dda3_size = 0,
.sc_reset = TV_SC_RESET_EVERY_4,
.pal_burst = false,

.composite_levels = &ntsc_j_levels_composite,
.composite_color = &ntsc_j_csc_composite,
.svideo_levels = &ntsc_j_levels_svideo,
.svideo_color = &ntsc_j_csc_svideo,

.filter_table = filter_table,
},
{
.name = "PAL-M",
.clock = 108000,
.refresh = 29970,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,

/* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
.hsync_end = 64, .hblank_end = 124,
.hblank_start = 836, .htotal = 857,

.progressive = false, .trilevel_sync = false,

.vsync_start_f1 = 6, .vsync_start_f2 = 7,
.vsync_len = 6,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 18,

.vi_end_f1 = 20, .vi_end_f2 = 21,
.nbr_end = 240,

.burst_ena = true,
.hburst_start = 72, .hburst_len = 34,
.vburst_start_f1 = 9, .vburst_end_f1 = 240,
.vburst_start_f2 = 10, .vburst_end_f2 = 240,
.vburst_start_f3 = 9, .vburst_end_f3 = 240,
.vburst_start_f4 = 10, .vburst_end_f4 = 240,

/* desired 3.5800000 actual 3.5800000 clock 107.52 */
.dda1_inc = 135,
.dda2_inc = 16704, .dda2_size = 27456,
.dda3_inc = 0, .dda3_size = 0,
.sc_reset = TV_SC_RESET_EVERY_8,
.pal_burst = true,

.composite_levels = &pal_m_levels_composite,
.composite_color = &pal_m_csc_composite,
.svideo_levels = &pal_m_levels_svideo,
.svideo_color = &pal_m_csc_svideo,

.filter_table = filter_table,
},
{
/* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
.name = "PAL-N",
.clock = 108000,
.refresh = 25000,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,

.hsync_end = 64, .hblank_end = 128,
.hblank_start = 844, .htotal = 863,

.progressive = false, .trilevel_sync = false,


.vsync_start_f1 = 6, .vsync_start_f2 = 7,
.vsync_len = 6,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 18,

.vi_end_f1 = 24, .vi_end_f2 = 25,
.nbr_end = 286,

.burst_ena = true,
.hburst_start = 73, .hburst_len = 34,
.vburst_start_f1 = 8, .vburst_end_f1 = 285,
.vburst_start_f2 = 8, .vburst_end_f2 = 286,
.vburst_start_f3 = 9, .vburst_end_f3 = 286,
.vburst_start_f4 = 9, .vburst_end_f4 = 285,


/* desired 4.4336180 actual 4.4336180 clock 107.52 */
.dda1_inc = 135,
.dda2_inc = 23578, .dda2_size = 27648,
.dda3_inc = 134, .dda3_size = 625,
.sc_reset = TV_SC_RESET_EVERY_8,
.pal_burst = true,

.composite_levels = &pal_n_levels_composite,
.composite_color = &pal_n_csc_composite,
.svideo_levels = &pal_n_levels_svideo,
.svideo_color = &pal_n_csc_svideo,

.filter_table = filter_table,
},
{
/* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
.name = "PAL",
.clock = 108000,
.refresh = 25000,
.oversample = TV_OVERSAMPLE_8X,
.component_only = 0,

.hsync_end = 64, .hblank_end = 142,
.hblank_start = 844, .htotal = 863,

.progressive = false, .trilevel_sync = false,

.vsync_start_f1 = 5, .vsync_start_f2 = 6,
.vsync_len = 5,

.veq_ena = true, .veq_start_f1 = 0,
.veq_start_f2 = 1, .veq_len = 15,

.vi_end_f1 = 24, .vi_end_f2 = 25,
.nbr_end = 286,

.burst_ena = true,
.hburst_start = 73, .hburst_len = 32,
.vburst_start_f1 = 8, .vburst_end_f1 = 285,
.vburst_start_f2 = 8, .vburst_end_f2 = 286,
.vburst_start_f3 = 9, .vburst_end_f3 = 286,
.vburst_start_f4 = 9, .vburst_end_f4 = 285,

/* desired 4.4336180 actual 4.4336180 clock 107.52 */
.dda1_inc = 168,
.dda2_inc = 4122, .dda2_size = 27648,
.dda3_inc = 67, .dda3_size = 625,
.sc_reset = TV_SC_RESET_EVERY_8,
.pal_burst = true,

.composite_levels = &pal_levels_composite,
.composite_color = &pal_csc_composite,
.svideo_levels = &pal_levels_svideo,
.svideo_color = &pal_csc_svideo,

.filter_table = filter_table,
},
{
.name = "480p@59.94Hz",
.clock = 107520,
.refresh = 59940,
.oversample = TV_OVERSAMPLE_4X,
.component_only = 1,

.hsync_end = 64, .hblank_end = 122,
.hblank_start = 842, .htotal = 857,

.progressive = true,.trilevel_sync = false,

.vsync_start_f1 = 12, .vsync_start_f2 = 12,
.vsync_len = 12,

.veq_ena = false,

.vi_end_f1 = 44, .vi_end_f2 = 44,
.nbr_end = 479,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "480p@60Hz",
.clock = 107520,
.refresh = 60000,
.oversample = TV_OVERSAMPLE_4X,
.component_only = 1,

.hsync_end = 64, .hblank_end = 122,
.hblank_start = 842, .htotal = 856,

.progressive = true,.trilevel_sync = false,

.vsync_start_f1 = 12, .vsync_start_f2 = 12,
.vsync_len = 12,

.veq_ena = false,

.vi_end_f1 = 44, .vi_end_f2 = 44,
.nbr_end = 479,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "576p",
.clock = 107520,
.refresh = 50000,
.oversample = TV_OVERSAMPLE_4X,
.component_only = 1,

.hsync_end = 64, .hblank_end = 139,
.hblank_start = 859, .htotal = 863,

.progressive = true, .trilevel_sync = false,

.vsync_start_f1 = 10, .vsync_start_f2 = 10,
.vsync_len = 10,

.veq_ena = false,

.vi_end_f1 = 48, .vi_end_f2 = 48,
.nbr_end = 575,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "720p@60Hz",
.clock = 148800,
.refresh = 60000,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 80, .hblank_end = 300,
.hblank_start = 1580, .htotal = 1649,

.progressive = true, .trilevel_sync = true,

.vsync_start_f1 = 10, .vsync_start_f2 = 10,
.vsync_len = 10,

.veq_ena = false,

.vi_end_f1 = 29, .vi_end_f2 = 29,
.nbr_end = 719,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "720p@59.94Hz",
.clock = 148800,
.refresh = 59940,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 80, .hblank_end = 300,
.hblank_start = 1580, .htotal = 1651,

.progressive = true, .trilevel_sync = true,

.vsync_start_f1 = 10, .vsync_start_f2 = 10,
.vsync_len = 10,

.veq_ena = false,

.vi_end_f1 = 29, .vi_end_f2 = 29,
.nbr_end = 719,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "720p@50Hz",
.clock = 148800,
.refresh = 50000,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 80, .hblank_end = 300,
.hblank_start = 1580, .htotal = 1979,

.progressive = true, .trilevel_sync = true,

.vsync_start_f1 = 10, .vsync_start_f2 = 10,
.vsync_len = 10,

.veq_ena = false,

.vi_end_f1 = 29, .vi_end_f2 = 29,
.nbr_end = 719,

.burst_ena = false,

.filter_table = filter_table,
.max_srcw = 800
},
{
.name = "1080i@50Hz",
.clock = 148800,
.refresh = 25000,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 88, .hblank_end = 235,
.hblank_start = 2155, .htotal = 2639,

.progressive = false, .trilevel_sync = true,

.vsync_start_f1 = 4, .vsync_start_f2 = 5,
.vsync_len = 10,

.veq_ena = true, .veq_start_f1 = 4,
.veq_start_f2 = 4, .veq_len = 10,


.vi_end_f1 = 21, .vi_end_f2 = 22,
.nbr_end = 539,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "1080i@60Hz",
.clock = 148800,
.refresh = 30000,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 88, .hblank_end = 235,
.hblank_start = 2155, .htotal = 2199,

.progressive = false, .trilevel_sync = true,

.vsync_start_f1 = 4, .vsync_start_f2 = 5,
.vsync_len = 10,

.veq_ena = true, .veq_start_f1 = 4,
.veq_start_f2 = 4, .veq_len = 10,


.vi_end_f1 = 21, .vi_end_f2 = 22,
.nbr_end = 539,

.burst_ena = false,

.filter_table = filter_table,
},
{
.name = "1080i@59.94Hz",
.clock = 148800,
.refresh = 29970,
.oversample = TV_OVERSAMPLE_2X,
.component_only = 1,

.hsync_end = 88, .hblank_end = 235,
.hblank_start = 2155, .htotal = 2201,

.progressive = false, .trilevel_sync = true,

.vsync_start_f1 = 4, .vsync_start_f2 = 5,
.vsync_len = 10,

.veq_ena = true, .veq_start_f1 = 4,
.veq_start_f2 = 4, .veq_len = 10,


.vi_end_f1 = 21, .vi_end_f2 = 22,
.nbr_end = 539,

.burst_ena = false,

.filter_table = filter_table,
},
};

#define NUM_TV_MODES sizeof(tv_modes) / sizeof (tv_modes[0])

static void
intel_tv_dpms(struct drm_encoder *encoder, int mode)
{
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;

switch(mode) {
case DRM_MODE_DPMS_ON:
I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
break;
}
}

static void
intel_tv_save(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_tv_priv *tv_priv = intel_output->dev_priv;
int i;

tv_priv->save_TV_H_CTL_1 = I915_READ(TV_H_CTL_1);
tv_priv->save_TV_H_CTL_2 = I915_READ(TV_H_CTL_2);
tv_priv->save_TV_H_CTL_3 = I915_READ(TV_H_CTL_3);
tv_priv->save_TV_V_CTL_1 = I915_READ(TV_V_CTL_1);
tv_priv->save_TV_V_CTL_2 = I915_READ(TV_V_CTL_2);
tv_priv->save_TV_V_CTL_3 = I915_READ(TV_V_CTL_3);
tv_priv->save_TV_V_CTL_4 = I915_READ(TV_V_CTL_4);
tv_priv->save_TV_V_CTL_5 = I915_READ(TV_V_CTL_5);
tv_priv->save_TV_V_CTL_6 = I915_READ(TV_V_CTL_6);
tv_priv->save_TV_V_CTL_7 = I915_READ(TV_V_CTL_7);
tv_priv->save_TV_SC_CTL_1 = I915_READ(TV_SC_CTL_1);
tv_priv->save_TV_SC_CTL_2 = I915_READ(TV_SC_CTL_2);
tv_priv->save_TV_SC_CTL_3 = I915_READ(TV_SC_CTL_3);

tv_priv->save_TV_CSC_Y = I915_READ(TV_CSC_Y);
tv_priv->save_TV_CSC_Y2 = I915_READ(TV_CSC_Y2);
tv_priv->save_TV_CSC_U = I915_READ(TV_CSC_U);
tv_priv->save_TV_CSC_U2 = I915_READ(TV_CSC_U2);
tv_priv->save_TV_CSC_V = I915_READ(TV_CSC_V);
tv_priv->save_TV_CSC_V2 = I915_READ(TV_CSC_V2);
tv_priv->save_TV_CLR_KNOBS = I915_READ(TV_CLR_KNOBS);
tv_priv->save_TV_CLR_LEVEL = I915_READ(TV_CLR_LEVEL);
tv_priv->save_TV_WIN_POS = I915_READ(TV_WIN_POS);
tv_priv->save_TV_WIN_SIZE = I915_READ(TV_WIN_SIZE);
tv_priv->save_TV_FILTER_CTL_1 = I915_READ(TV_FILTER_CTL_1);
tv_priv->save_TV_FILTER_CTL_2 = I915_READ(TV_FILTER_CTL_2);
tv_priv->save_TV_FILTER_CTL_3 = I915_READ(TV_FILTER_CTL_3);

for (i = 0; i < 60; i++)
tv_priv->save_TV_H_LUMA[i] = I915_READ(TV_H_LUMA_0 + (i <<2));
for (i = 0; i < 60; i++)
tv_priv->save_TV_H_CHROMA[i] = I915_READ(TV_H_CHROMA_0 + (i <<2));
for (i = 0; i < 43; i++)
tv_priv->save_TV_V_LUMA[i] = I915_READ(TV_V_LUMA_0 + (i <<2));
for (i = 0; i < 43; i++)
tv_priv->save_TV_V_CHROMA[i] = I915_READ(TV_V_CHROMA_0 + (i <<2));

tv_priv->save_TV_DAC = I915_READ(TV_DAC);
tv_priv->save_TV_CTL = I915_READ(TV_CTL);
}

static void
intel_tv_restore(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_tv_priv *tv_priv = intel_output->dev_priv;
struct drm_crtc *crtc = connector->encoder->crtc;
struct intel_crtc *intel_crtc;
int i;

/* FIXME: No CRTC? */
if (!crtc)
return;

intel_crtc = to_intel_crtc(crtc);
I915_WRITE(TV_H_CTL_1, tv_priv->save_TV_H_CTL_1);
I915_WRITE(TV_H_CTL_2, tv_priv->save_TV_H_CTL_2);
I915_WRITE(TV_H_CTL_3, tv_priv->save_TV_H_CTL_3);
I915_WRITE(TV_V_CTL_1, tv_priv->save_TV_V_CTL_1);
I915_WRITE(TV_V_CTL_2, tv_priv->save_TV_V_CTL_2);
I915_WRITE(TV_V_CTL_3, tv_priv->save_TV_V_CTL_3);
I915_WRITE(TV_V_CTL_4, tv_priv->save_TV_V_CTL_4);
I915_WRITE(TV_V_CTL_5, tv_priv->save_TV_V_CTL_5);
I915_WRITE(TV_V_CTL_6, tv_priv->save_TV_V_CTL_6);
I915_WRITE(TV_V_CTL_7, tv_priv->save_TV_V_CTL_7);
I915_WRITE(TV_SC_CTL_1, tv_priv->save_TV_SC_CTL_1);
I915_WRITE(TV_SC_CTL_2, tv_priv->save_TV_SC_CTL_2);
I915_WRITE(TV_SC_CTL_3, tv_priv->save_TV_SC_CTL_3);

I915_WRITE(TV_CSC_Y, tv_priv->save_TV_CSC_Y);
I915_WRITE(TV_CSC_Y2, tv_priv->save_TV_CSC_Y2);
I915_WRITE(TV_CSC_U, tv_priv->save_TV_CSC_U);
I915_WRITE(TV_CSC_U2, tv_priv->save_TV_CSC_U2);
I915_WRITE(TV_CSC_V, tv_priv->save_TV_CSC_V);
I915_WRITE(TV_CSC_V2, tv_priv->save_TV_CSC_V2);
I915_WRITE(TV_CLR_KNOBS, tv_priv->save_TV_CLR_KNOBS);
I915_WRITE(TV_CLR_LEVEL, tv_priv->save_TV_CLR_LEVEL);

{
int pipeconf_reg = (intel_crtc->pipe == 0) ?
PIPEACONF : PIPEBCONF;
int dspcntr_reg = (intel_crtc->plane == 0) ?
DSPACNTR : DSPBCNTR;
int pipeconf = I915_READ(pipeconf_reg);
int dspcntr = I915_READ(dspcntr_reg);
int dspbase_reg = (intel_crtc->plane == 0) ?
DSPAADDR : DSPBADDR;
/* Pipe must be off here */
I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
/* Flush the plane changes */
I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));

if (!IS_I9XX(dev)) {
/* Wait for vblank for the disable to take effect */
intel_wait_for_vblank(dev);
}

I915_WRITE(pipeconf_reg, pipeconf & ~PIPEACONF_ENABLE);
/* Wait for vblank for the disable to take effect. */
intel_wait_for_vblank(dev);

/* Filter ctl must be set before TV_WIN_SIZE */
I915_WRITE(TV_FILTER_CTL_1, tv_priv->save_TV_FILTER_CTL_1);
I915_WRITE(TV_FILTER_CTL_2, tv_priv->save_TV_FILTER_CTL_2);
I915_WRITE(TV_FILTER_CTL_3, tv_priv->save_TV_FILTER_CTL_3);
I915_WRITE(TV_WIN_POS, tv_priv->save_TV_WIN_POS);
I915_WRITE(TV_WIN_SIZE, tv_priv->save_TV_WIN_SIZE);
I915_WRITE(pipeconf_reg, pipeconf);
I915_WRITE(dspcntr_reg, dspcntr);
/* Flush the plane changes */
I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
}

for (i = 0; i < 60; i++)
I915_WRITE(TV_H_LUMA_0 + (i <<2), tv_priv->save_TV_H_LUMA[i]);
for (i = 0; i < 60; i++)
I915_WRITE(TV_H_CHROMA_0 + (i <<2), tv_priv->save_TV_H_CHROMA[i]);
for (i = 0; i < 43; i++)
I915_WRITE(TV_V_LUMA_0 + (i <<2), tv_priv->save_TV_V_LUMA[i]);
for (i = 0; i < 43; i++)
I915_WRITE(TV_V_CHROMA_0 + (i <<2), tv_priv->save_TV_V_CHROMA[i]);

I915_WRITE(TV_DAC, tv_priv->save_TV_DAC);
I915_WRITE(TV_CTL, tv_priv->save_TV_CTL);
}

static const struct tv_mode *
intel_tv_mode_lookup (char *tv_format)
{
int i;

for (i = 0; i < sizeof(tv_modes) / sizeof (tv_modes[0]); i++) {
const struct tv_mode *tv_mode = &tv_modes[i];

if (!strcmp(tv_format, tv_mode->name))
return tv_mode;
}
return NULL;
}

static const struct tv_mode *
intel_tv_mode_find (struct intel_output *intel_output)
{
struct intel_tv_priv *tv_priv = intel_output->dev_priv;

return intel_tv_mode_lookup(tv_priv->tv_format);
}

static enum drm_mode_status
intel_tv_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode)
{
struct intel_output *intel_output = to_intel_output(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);

/* Ensure TV refresh is close to desired refresh */
if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode)) < 10)
return MODE_OK;
return MODE_CLOCK_RANGE;
}


static bool
intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct drm_mode_config *drm_config = &dev->mode_config;
struct intel_output *intel_output = enc_to_intel_output(encoder);
const struct tv_mode *tv_mode = intel_tv_mode_find (intel_output);
struct drm_encoder *other_encoder;

if (!tv_mode)
return false;

/* FIXME: lock encoder list */
list_for_each_entry(other_encoder, &drm_config->encoder_list, head) {
if (other_encoder != encoder &&
other_encoder->crtc == encoder->crtc)
return false;
}

adjusted_mode->clock = tv_mode->clock;
return true;
}

static void
intel_tv_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc = encoder->crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_output *intel_output = enc_to_intel_output(encoder);
struct intel_tv_priv *tv_priv = intel_output->dev_priv;
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
u32 tv_ctl;
u32 hctl1, hctl2, hctl3;
u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
u32 scctl1, scctl2, scctl3;
int i, j;
const struct video_levels *video_levels;
const struct color_conversion *color_conversion;
bool burst_ena;

if (!tv_mode)
return; /* can't happen (mode_prepare prevents this) */

tv_ctl = I915_READ(TV_CTL);
tv_ctl &= TV_CTL_SAVE;

switch (tv_priv->type) {
default:
case DRM_MODE_CONNECTOR_Unknown:
case DRM_MODE_CONNECTOR_Composite:
tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
video_levels = tv_mode->composite_levels;
color_conversion = tv_mode->composite_color;
burst_ena = tv_mode->burst_ena;
break;
case DRM_MODE_CONNECTOR_Component:
tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
video_levels = &component_levels;
if (tv_mode->burst_ena)
color_conversion = &sdtv_csc_yprpb;
else
color_conversion = &hdtv_csc_yprpb;
burst_ena = false;
break;
case DRM_MODE_CONNECTOR_SVIDEO:
tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
video_levels = tv_mode->svideo_levels;
color_conversion = tv_mode->svideo_color;
burst_ena = tv_mode->burst_ena;
break;
}
hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
(tv_mode->htotal << TV_HTOTAL_SHIFT);

hctl2 = (tv_mode->hburst_start << 16) |
(tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);

if (burst_ena)
hctl2 |= TV_BURST_ENA;

hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
(tv_mode->hblank_end << TV_HBLANK_END_SHIFT);

vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
(tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
(tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);

vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
(tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
(tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);

vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
(tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
(tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);

if (tv_mode->veq_ena)
vctl3 |= TV_EQUAL_ENA;

vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
(tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);

vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
(tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);

vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
(tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);

vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
(tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);

if (intel_crtc->pipe == 1)
tv_ctl |= TV_ENC_PIPEB_SELECT;
tv_ctl |= tv_mode->oversample;

if (tv_mode->progressive)
tv_ctl |= TV_PROGRESSIVE;
if (tv_mode->trilevel_sync)
tv_ctl |= TV_TRILEVEL_SYNC;
if (tv_mode->pal_burst)
tv_ctl |= TV_PAL_BURST;
scctl1 = 0;
/* dda1 implies valid video levels */
if (tv_mode->dda1_inc) {
scctl1 |= TV_SC_DDA1_EN;
}

if (tv_mode->dda2_inc)
scctl1 |= TV_SC_DDA2_EN;

if (tv_mode->dda3_inc)
scctl1 |= TV_SC_DDA3_EN;

scctl1 |= tv_mode->sc_reset;
scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;

scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;

scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;

/* Enable two fixes for the chips that need them. */
if (dev->pci_device < 0x2772)
tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;

I915_WRITE(TV_H_CTL_1, hctl1);
I915_WRITE(TV_H_CTL_2, hctl2);
I915_WRITE(TV_H_CTL_3, hctl3);
I915_WRITE(TV_V_CTL_1, vctl1);
I915_WRITE(TV_V_CTL_2, vctl2);
I915_WRITE(TV_V_CTL_3, vctl3);
I915_WRITE(TV_V_CTL_4, vctl4);
I915_WRITE(TV_V_CTL_5, vctl5);
I915_WRITE(TV_V_CTL_6, vctl6);
I915_WRITE(TV_V_CTL_7, vctl7);
I915_WRITE(TV_SC_CTL_1, scctl1);
I915_WRITE(TV_SC_CTL_2, scctl2);
I915_WRITE(TV_SC_CTL_3, scctl3);

if (color_conversion) {
I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
color_conversion->gy);
I915_WRITE(TV_CSC_Y2,(color_conversion->by << 16) |
color_conversion->ay);
I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
color_conversion->gu);
I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
color_conversion->au);
I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
color_conversion->gv);
I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
color_conversion->av);
}

if (IS_I965G(dev))
I915_WRITE(TV_CLR_KNOBS, 0x00404000);
else
I915_WRITE(TV_CLR_KNOBS, 0x00606000);

if (video_levels)
I915_WRITE(TV_CLR_LEVEL,
((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
(video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
{
int pipeconf_reg = (intel_crtc->pipe == 0) ?
PIPEACONF : PIPEBCONF;
int dspcntr_reg = (intel_crtc->plane == 0) ?
DSPACNTR : DSPBCNTR;
int pipeconf = I915_READ(pipeconf_reg);
int dspcntr = I915_READ(dspcntr_reg);
int dspbase_reg = (intel_crtc->plane == 0) ?
DSPAADDR : DSPBADDR;
int xpos = 0x0, ypos = 0x0;
unsigned int xsize, ysize;
/* Pipe must be off here */
I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
/* Flush the plane changes */
I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));

/* Wait for vblank for the disable to take effect */
if (!IS_I9XX(dev))
intel_wait_for_vblank(dev);

I915_WRITE(pipeconf_reg, pipeconf & ~PIPEACONF_ENABLE);
/* Wait for vblank for the disable to take effect. */
intel_wait_for_vblank(dev);

/* Filter ctl must be set before TV_WIN_SIZE */
I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
xsize = tv_mode->hblank_start - tv_mode->hblank_end;
if (tv_mode->progressive)
ysize = tv_mode->nbr_end + 1;
else
ysize = 2*tv_mode->nbr_end + 1;

xpos += tv_priv->margin[TV_MARGIN_LEFT];
ypos += tv_priv->margin[TV_MARGIN_TOP];
xsize -= (tv_priv->margin[TV_MARGIN_LEFT] +
tv_priv->margin[TV_MARGIN_RIGHT]);
ysize -= (tv_priv->margin[TV_MARGIN_TOP] +
tv_priv->margin[TV_MARGIN_BOTTOM]);
I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);

I915_WRITE(pipeconf_reg, pipeconf);
I915_WRITE(dspcntr_reg, dspcntr);
/* Flush the plane changes */
I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
}

j = 0;
for (i = 0; i < 60; i++)
I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
for (i = 0; i < 60; i++)
I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
for (i = 0; i < 43; i++)
I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
for (i = 0; i < 43; i++)
I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
I915_WRITE(TV_DAC, 0);
I915_WRITE(TV_CTL, tv_ctl);
}

static const struct drm_display_mode reported_modes[] = {
{
.name = "NTSC 480i",
.clock = 107520,
.hdisplay = 1280,
.hsync_start = 1368,
.hsync_end = 1496,
.htotal = 1712,

.vdisplay = 1024,
.vsync_start = 1027,
.vsync_end = 1034,
.vtotal = 1104,
.type = DRM_MODE_TYPE_DRIVER,
},
};

/**
* Detects TV presence by checking for load.
*
* Requires that the current pipe's DPLL is active.

* \return true if TV is connected.
* \return false if TV is disconnected.
*/
static int
intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output)
{
struct drm_encoder *encoder = &intel_output->enc;
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
u32 tv_ctl, save_tv_ctl;
u32 tv_dac, save_tv_dac;
int type = DRM_MODE_CONNECTOR_Unknown;

tv_dac = I915_READ(TV_DAC);

/* Disable TV interrupts around load detect or we'll recurse */
spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
i915_disable_pipestat(dev_priv, 0, PIPE_HOTPLUG_INTERRUPT_ENABLE |
PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);

/*
* Detect TV by polling)
*/
save_tv_dac = tv_dac;
tv_ctl = I915_READ(TV_CTL);
save_tv_ctl = tv_ctl;
tv_ctl &= ~TV_ENC_ENABLE;
tv_ctl &= ~TV_TEST_MODE_MASK;
tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
tv_dac &= ~TVDAC_SENSE_MASK;
tv_dac &= ~DAC_A_MASK;
tv_dac &= ~DAC_B_MASK;
tv_dac &= ~DAC_C_MASK;
tv_dac |= (TVDAC_STATE_CHG_EN |
TVDAC_A_SENSE_CTL |
TVDAC_B_SENSE_CTL |
TVDAC_C_SENSE_CTL |
DAC_CTL_OVERRIDE |
DAC_A_0_7_V |
DAC_B_0_7_V |
DAC_C_0_7_V);
I915_WRITE(TV_CTL, tv_ctl);
I915_WRITE(TV_DAC, tv_dac);
intel_wait_for_vblank(dev);
tv_dac = I915_READ(TV_DAC);
I915_WRITE(TV_DAC, save_tv_dac);
I915_WRITE(TV_CTL, save_tv_ctl);
intel_wait_for_vblank(dev);
/*
* A B C
* 0 1 1 Composite
* 1 0 X svideo
* 0 0 0 Component
*/
if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
DRM_DEBUG("Detected Composite TV connection\n");
type = DRM_MODE_CONNECTOR_Composite;
} else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
DRM_DEBUG("Detected S-Video TV connection\n");
type = DRM_MODE_CONNECTOR_SVIDEO;
} else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
DRM_DEBUG("Detected Component TV connection\n");
type = DRM_MODE_CONNECTOR_Component;
} else {
DRM_DEBUG("No TV connection detected\n");
type = -1;
}

/* Restore interrupt config */
spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
i915_enable_pipestat(dev_priv, 0, PIPE_HOTPLUG_INTERRUPT_ENABLE |
PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);

return type;
}

/**
* Detect the TV connection.
*
* Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
* we have a pipe programmed in order to probe the TV.
*/
static enum drm_connector_status
intel_tv_detect(struct drm_connector *connector)
{
struct drm_crtc *crtc;
struct drm_display_mode mode;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_tv_priv *tv_priv = intel_output->dev_priv;
struct drm_encoder *encoder = &intel_output->enc;
int dpms_mode;
int type = tv_priv->type;

mode = reported_modes[0];
drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);

if (encoder->crtc && encoder->crtc->enabled) {
type = intel_tv_detect_type(encoder->crtc, intel_output);
} else {
crtc = intel_get_load_detect_pipe(intel_output, &mode, &dpms_mode);
if (crtc) {
type = intel_tv_detect_type(crtc, intel_output);
intel_release_load_detect_pipe(intel_output, dpms_mode);
} else
type = -1;
}

tv_priv->type = type;

if (type < 0)
return connector_status_disconnected;

return connector_status_connected;
}

static struct input_res {
char *name;
int w, h;
} input_res_table[] =
{
{"640x480", 640, 480},
{"800x600", 800, 600},
{"1024x768", 1024, 768},
{"1280x1024", 1280, 1024},
{"848x480", 848, 480},
{"1280x720", 1280, 720},
{"1920x1080", 1920, 1080},
};

/*
* Chose preferred mode according to line number of TV format
*/
static void
intel_tv_chose_preferred_modes(struct drm_connector *connector,
struct drm_display_mode *mode_ptr)
{
struct intel_output *intel_output = to_intel_output(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);

if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
else if (tv_mode->nbr_end > 480) {
if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
if (mode_ptr->vdisplay == 720)
mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
} else if (mode_ptr->vdisplay == 1080)
mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
}
}

/**
* Stub get_modes function.
*
* This should probably return a set of fixed modes, unless we can figure out
* how to probe modes off of TV connections.
*/

static int
intel_tv_get_modes(struct drm_connector *connector)
{
struct drm_display_mode *mode_ptr;
struct intel_output *intel_output = to_intel_output(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
int j, count = 0;
u64 tmp;

for (j = 0; j < sizeof(input_res_table) / sizeof(input_res_table[0]);
j++) {
struct input_res *input = &input_res_table[j];
unsigned int hactive_s = input->w;
unsigned int vactive_s = input->h;

if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
continue;

if (input->w > 1024 && (!tv_mode->progressive
&& !tv_mode->component_only))
continue;

mode_ptr = drm_mode_create(connector->dev);
if (!mode_ptr)
continue;
strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);

mode_ptr->hdisplay = hactive_s;
mode_ptr->hsync_start = hactive_s + 1;
mode_ptr->hsync_end = hactive_s + 64;
if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
mode_ptr->htotal = hactive_s + 96;

mode_ptr->vdisplay = vactive_s;
mode_ptr->vsync_start = vactive_s + 1;
mode_ptr->vsync_end = vactive_s + 32;
if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
mode_ptr->vtotal = vactive_s + 33;

tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
tmp *= mode_ptr->htotal;
tmp = div_u64(tmp, 1000000);
mode_ptr->clock = (int) tmp;

mode_ptr->type = DRM_MODE_TYPE_DRIVER;
intel_tv_chose_preferred_modes(connector, mode_ptr);
drm_mode_probed_add(connector, mode_ptr);
count++;
}

return count;
}

static void
intel_tv_destroy (struct drm_connector *connector)
{
struct intel_output *intel_output = to_intel_output(connector);

drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(intel_output);
}


static int
intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
uint64_t val)
{
struct drm_device *dev = connector->dev;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_tv_priv *tv_priv = intel_output->dev_priv;
struct drm_encoder *encoder = &intel_output->enc;
struct drm_crtc *crtc = encoder->crtc;
int ret = 0;
bool changed = false;

ret = drm_connector_property_set_value(connector, property, val);
if (ret < 0)
goto out;

if (property == dev->mode_config.tv_left_margin_property &&
tv_priv->margin[TV_MARGIN_LEFT] != val) {
tv_priv->margin[TV_MARGIN_LEFT] = val;
changed = true;
} else if (property == dev->mode_config.tv_right_margin_property &&
tv_priv->margin[TV_MARGIN_RIGHT] != val) {
tv_priv->margin[TV_MARGIN_RIGHT] = val;
changed = true;
} else if (property == dev->mode_config.tv_top_margin_property &&
tv_priv->margin[TV_MARGIN_TOP] != val) {
tv_priv->margin[TV_MARGIN_TOP] = val;
changed = true;
} else if (property == dev->mode_config.tv_bottom_margin_property &&
tv_priv->margin[TV_MARGIN_BOTTOM] != val) {
tv_priv->margin[TV_MARGIN_BOTTOM] = val;
changed = true;
} else if (property == dev->mode_config.tv_mode_property) {
if (val >= NUM_TV_MODES) {
ret = -EINVAL;
goto out;
}
if (!strcmp(tv_priv->tv_format, tv_modes[val].name))
goto out;

tv_priv->tv_format = tv_modes[val].name;
changed = true;
} else {
ret = -EINVAL;
goto out;
}

if (changed && crtc)
drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
crtc->y, crtc->fb);
out:
return ret;
}

static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = {
.dpms = intel_tv_dpms,
.mode_fixup = intel_tv_mode_fixup,
.prepare = intel_encoder_prepare,
.mode_set = intel_tv_mode_set,
.commit = intel_encoder_commit,
};

static const struct drm_connector_funcs intel_tv_connector_funcs = {
.dpms = drm_helper_connector_dpms,
.save = intel_tv_save,
.restore = intel_tv_restore,
.detect = intel_tv_detect,
.destroy = intel_tv_destroy,
.set_property = intel_tv_set_property,
.fill_modes = drm_helper_probe_single_connector_modes,
};

static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
.mode_valid = intel_tv_mode_valid,
.get_modes = intel_tv_get_modes,
.best_encoder = intel_best_encoder,
};

static void intel_tv_enc_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
}

static const struct drm_encoder_funcs intel_tv_enc_funcs = {
.destroy = intel_tv_enc_destroy,
};


void
intel_tv_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_connector *connector;
struct intel_output *intel_output;
struct intel_tv_priv *tv_priv;
u32 tv_dac_on, tv_dac_off, save_tv_dac;
char **tv_format_names;
int i, initial_mode = 0;

if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
return;

/* Even if we have an encoder we may not have a connector */
if (!dev_priv->int_tv_support)
return;

/*
* Sanity check the TV output by checking to see if the
* DAC register holds a value
*/
save_tv_dac = I915_READ(TV_DAC);

I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
tv_dac_on = I915_READ(TV_DAC);

I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
tv_dac_off = I915_READ(TV_DAC);

I915_WRITE(TV_DAC, save_tv_dac);

/*
* If the register does not hold the state change enable
* bit, (either as a 0 or a 1), assume it doesn't really
* exist
*/
if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
(tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
return;

intel_output = kzalloc(sizeof(struct intel_output) +
sizeof(struct intel_tv_priv), GFP_KERNEL);
if (!intel_output) {
return;
}

connector = &intel_output->base;

drm_connector_init(dev, connector, &intel_tv_connector_funcs,
DRM_MODE_CONNECTOR_SVIDEO);

drm_encoder_init(dev, &intel_output->enc, &intel_tv_enc_funcs,
DRM_MODE_ENCODER_TVDAC);

drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
tv_priv = (struct intel_tv_priv *)(intel_output + 1);
intel_output->type = INTEL_OUTPUT_TVOUT;
intel_output->crtc_mask = (1 << 0) | (1 << 1);
intel_output->clone_mask = (1 << INTEL_TV_CLONE_BIT);
intel_output->enc.possible_crtcs = ((1 << 0) | (1 << 1));
intel_output->enc.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
intel_output->dev_priv = tv_priv;
tv_priv->type = DRM_MODE_CONNECTOR_Unknown;

/* BIOS margin values */
tv_priv->margin[TV_MARGIN_LEFT] = 54;
tv_priv->margin[TV_MARGIN_TOP] = 36;
tv_priv->margin[TV_MARGIN_RIGHT] = 46;
tv_priv->margin[TV_MARGIN_BOTTOM] = 37;

tv_priv->tv_format = kstrdup(tv_modes[initial_mode].name, GFP_KERNEL);

drm_encoder_helper_add(&intel_output->enc, &intel_tv_helper_funcs);
drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
connector->interlace_allowed = false;
connector->doublescan_allowed = false;

/* Create TV properties then attach current values */
tv_format_names = kmalloc(sizeof(char *) * NUM_TV_MODES,
GFP_KERNEL);
if (!tv_format_names)
goto out;
for (i = 0; i < NUM_TV_MODES; i++)
tv_format_names[i] = tv_modes[i].name;
drm_mode_create_tv_properties(dev, NUM_TV_MODES, tv_format_names);

drm_connector_attach_property(connector, dev->mode_config.tv_mode_property,
initial_mode);
drm_connector_attach_property(connector,
dev->mode_config.tv_left_margin_property,
tv_priv->margin[TV_MARGIN_LEFT]);
drm_connector_attach_property(connector,
dev->mode_config.tv_top_margin_property,
tv_priv->margin[TV_MARGIN_TOP]);
drm_connector_attach_property(connector,
dev->mode_config.tv_right_margin_property,
tv_priv->margin[TV_MARGIN_RIGHT]);
drm_connector_attach_property(connector,
dev->mode_config.tv_bottom_margin_property,
tv_priv->margin[TV_MARGIN_BOTTOM]);
out:
drm_sysfs_connector_add(connector);
}
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