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linux/drivers/gpu/drm/i915/intel_tv.c
Daniel Vetter ca9bfa7eed drm/i915: fixup interlaced vertical timings confusion, part 1 
We have a pretty decent confusion about vertical timings of interlaced
modes. Peter Ross has written a patch that makes interlace modes work
on a lot more platforms/output combinations by doubling the vertical
timings.

The issue with that patch is that core drm _does_ support specifying
whether we want these vertical timings in fields or frames, we just
haven't managed to consistently use this facility. The relavant
function is drm_mode_set_crtcinfo, which fills in the crtc timing
information.

The first thing to note is that the drm core keeps interlaced modes in
frames, but displays modelines in fields. So when the crtc modeset
helper copies over the mode into adjusted_mode it will already contain
vertical timings in half-frames. The result is that the fixup code in
intel_crtc_mode_fixup doesn't actually do anything (in most cases at
least).

Now gen3+ natively supports interlaced modes and wants the vertical
timings in frames. Which is what sdvo already fixes up, at least under
some conditions.

There are a few other place that demand vertical timings in fields
but never actually deal with interlaced modes, so use frame timings
for consistency, too. These are:
- lvds panel,
- dvo encoders - dvo is the only way gen2 could support interlaced
  mode, but currently we don't support any encoders that do.
- tv out - despite that the tv dac sends out an interlaced signal it
  expects a progressive mode pipe configuration.
All these encoders enforce progressive modes by resetting
interlace_allowed.

Hence we always want crtc vertical timings in frames. Enforce this in
our crtc mode_fixup function and rip out any redudant timing
computations from the encoders' mode_fixup function.

v2-4: Adjust the vertical timings a bit.

v5: Split out the 'subtract-one for interlaced' fixes.

v6: Clarify issues around tv-out and gen2.

Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Christopher Egert <cme3000@gmail.com>
Tested-by: Alfonso Fiore <alfonso.fiore@gmail.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-10 17:24:06 +01:00

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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 {
struct intel_encoder base;
int type;
const 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 {
const 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 = 59940,
.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 = 59940,
.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 = 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 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 = 59940,
.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 = 59940,
.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 = 50000,
.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 = 50000,
.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 = "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@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 = 50000,
.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 = 60000,
.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,
},
};
static struct intel_tv *enc_to_intel_tv(struct drm_encoder *encoder)
{
return container_of(encoder, struct intel_tv, base.base);
}
static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
{
return container_of(intel_attached_encoder(connector),
struct intel_tv,
base);
}
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 const struct tv_mode *
intel_tv_mode_lookup(const 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_tv *intel_tv)
{
return intel_tv_mode_lookup(intel_tv->tv_format);
}
static enum drm_mode_status
intel_tv_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct intel_tv *intel_tv = intel_attached_tv(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
/* Ensure TV refresh is close to desired refresh */
if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
< 1000)
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_tv *intel_tv = enc_to_intel_tv(encoder);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
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_tv *intel_tv = enc_to_intel_tv(encoder);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
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;
int pipe = intel_crtc->pipe;
if (!tv_mode)
return; /* can't happen (mode_prepare prevents this) */
tv_ctl = I915_READ(TV_CTL);
tv_ctl &= TV_CTL_SAVE;
switch (intel_tv->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;
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;
if (video_levels)
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 (INTEL_INFO(dev)->gen >= 4)
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 = PIPECONF(pipe);
int dspcntr_reg = DSPCNTR(intel_crtc->plane);
int pipeconf = I915_READ(pipeconf_reg);
int dspcntr = I915_READ(dspcntr_reg);
int dspbase_reg = DSPADDR(intel_crtc->plane);
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_GEN2(dev))
intel_wait_for_vblank(dev, intel_crtc->pipe);
I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
/* Wait for vblank for the disable to take effect. */
intel_wait_for_pipe_off(dev, intel_crtc->pipe);
/* 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 += intel_tv->margin[TV_MARGIN_LEFT];
ypos += intel_tv->margin[TV_MARGIN_TOP];
xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
intel_tv->margin[TV_MARGIN_RIGHT]);
ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
intel_tv->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, I915_READ(TV_DAC) & TV_DAC_SAVE);
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 intel_tv *intel_tv,
struct drm_connector *connector)
{
struct drm_encoder *encoder = &intel_tv->base.base;
struct drm_crtc *crtc = encoder->crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
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;
/* Disable TV interrupts around load detect or we'll recurse */
if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
i915_disable_pipestat(dev_priv, 0,
PIPE_HOTPLUG_INTERRUPT_ENABLE |
PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
save_tv_dac = tv_dac = I915_READ(TV_DAC);
save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
/* Poll for TV detection */
tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
if (intel_crtc->pipe == 1)
tv_ctl |= TV_ENC_PIPEB_SELECT;
else
tv_ctl &= ~TV_ENC_PIPEB_SELECT;
tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | 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);
POSTING_READ(TV_DAC);
intel_wait_for_vblank(intel_tv->base.base.dev,
to_intel_crtc(intel_tv->base.base.crtc)->pipe);
type = -1;
tv_dac = I915_READ(TV_DAC);
DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
/*
* 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_KMS("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_KMS("Detected S-Video TV connection\n");
type = DRM_MODE_CONNECTOR_SVIDEO;
} else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
DRM_DEBUG_KMS("Detected Component TV connection\n");
type = DRM_MODE_CONNECTOR_Component;
} else {
DRM_DEBUG_KMS("Unrecognised TV connection\n");
type = -1;
}
I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
I915_WRITE(TV_CTL, save_tv_ctl);
/* Restore interrupt config */
if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
i915_enable_pipestat(dev_priv, 0,
PIPE_HOTPLUG_INTERRUPT_ENABLE |
PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
return type;
}
/*
* Here we set accurate tv format according to connector type
* i.e Component TV should not be assigned by NTSC or PAL
*/
static void intel_tv_find_better_format(struct drm_connector *connector)
{
struct intel_tv *intel_tv = intel_attached_tv(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
int i;
if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
tv_mode->component_only)
return;
for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
tv_mode = tv_modes + i;
if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
tv_mode->component_only)
break;
}
intel_tv->tv_format = tv_mode->name;
drm_connector_property_set_value(connector,
connector->dev->mode_config.tv_mode_property, i);
}
/**
* 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, bool force)
{
struct drm_display_mode mode;
struct intel_tv *intel_tv = intel_attached_tv(connector);
int type;
mode = reported_modes[0];
drm_mode_set_crtcinfo(&mode, 0);
if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) {
type = intel_tv_detect_type(intel_tv, connector);
} else if (force) {
struct intel_load_detect_pipe tmp;
if (intel_get_load_detect_pipe(&intel_tv->base, connector,
&mode, &tmp)) {
type = intel_tv_detect_type(intel_tv, connector);
intel_release_load_detect_pipe(&intel_tv->base,
connector,
&tmp);
} else
return connector_status_unknown;
} else
return connector->status;
if (type < 0)
return connector_status_disconnected;
intel_tv->type = type;
intel_tv_find_better_format(connector);
return connector_status_connected;
}
static const struct input_res {
const 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_tv *intel_tv = intel_attached_tv(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
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_tv *intel_tv = intel_attached_tv(connector);
const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
int j, count = 0;
u64 tmp;
for (j = 0; j < ARRAY_SIZE(input_res_table);
j++) {
const 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)
{
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(connector);
}
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_tv *intel_tv = intel_attached_tv(connector);
struct drm_crtc *crtc = intel_tv->base.base.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 &&
intel_tv->margin[TV_MARGIN_LEFT] != val) {
intel_tv->margin[TV_MARGIN_LEFT] = val;
changed = true;
} else if (property == dev->mode_config.tv_right_margin_property &&
intel_tv->margin[TV_MARGIN_RIGHT] != val) {
intel_tv->margin[TV_MARGIN_RIGHT] = val;
changed = true;
} else if (property == dev->mode_config.tv_top_margin_property &&
intel_tv->margin[TV_MARGIN_TOP] != val) {
intel_tv->margin[TV_MARGIN_TOP] = val;
changed = true;
} else if (property == dev->mode_config.tv_bottom_margin_property &&
intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
intel_tv->margin[TV_MARGIN_BOTTOM] = val;
changed = true;
} else if (property == dev->mode_config.tv_mode_property) {
if (val >= ARRAY_SIZE(tv_modes)) {
ret = -EINVAL;
goto out;
}
if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
goto out;
intel_tv->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,
.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 const struct drm_encoder_funcs intel_tv_enc_funcs = {
.destroy = intel_encoder_destroy,
};
/*
* Enumerate the child dev array parsed from VBT to check whether
* the integrated TV is present.
* If it is present, return 1.
* If it is not present, return false.
* If no child dev is parsed from VBT, it assumes that the TV is present.
*/
static int tv_is_present_in_vbt(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct child_device_config *p_child;
int i, ret;
if (!dev_priv->child_dev_num)
return 1;
ret = 0;
for (i = 0; i < dev_priv->child_dev_num; i++) {
p_child = dev_priv->child_dev + i;
/*
* If the device type is not TV, continue.
*/
if (p_child->device_type != DEVICE_TYPE_INT_TV &&
p_child->device_type != DEVICE_TYPE_TV)
continue;
/* Only when the addin_offset is non-zero, it is regarded
* as present.
*/
if (p_child->addin_offset) {
ret = 1;
break;
}
}
return ret;
}
void
intel_tv_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_connector *connector;
struct intel_tv *intel_tv;
struct intel_encoder *intel_encoder;
struct intel_connector *intel_connector;
u32 tv_dac_on, tv_dac_off, save_tv_dac;
char *tv_format_names[ARRAY_SIZE(tv_modes)];
int i, initial_mode = 0;
if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
return;
if (!tv_is_present_in_vbt(dev)) {
DRM_DEBUG_KMS("Integrated TV is not present.\n");
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_tv = kzalloc(sizeof(struct intel_tv), GFP_KERNEL);
if (!intel_tv) {
return;
}
intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
if (!intel_connector) {
kfree(intel_tv);
return;
}
intel_encoder = &intel_tv->base;
connector = &intel_connector->base;
/* The documentation, for the older chipsets at least, recommend
* using a polling method rather than hotplug detection for TVs.
* This is because in order to perform the hotplug detection, the PLLs
* for the TV must be kept alive increasing power drain and starving
* bandwidth from other encoders. Notably for instance, it causes
* pipe underruns on Crestline when this encoder is supposedly idle.
*
* More recent chipsets favour HDMI rather than integrated S-Video.
*/
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
drm_connector_init(dev, connector, &intel_tv_connector_funcs,
DRM_MODE_CONNECTOR_SVIDEO);
drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
DRM_MODE_ENCODER_TVDAC);
intel_connector_attach_encoder(intel_connector, intel_encoder);
intel_encoder->type = INTEL_OUTPUT_TVOUT;
intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
/* BIOS margin values */
intel_tv->margin[TV_MARGIN_LEFT] = 54;
intel_tv->margin[TV_MARGIN_TOP] = 36;
intel_tv->margin[TV_MARGIN_RIGHT] = 46;
intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
intel_tv->tv_format = tv_modes[initial_mode].name;
drm_encoder_helper_add(&intel_encoder->base, &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 */
for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
tv_format_names[i] = (char *)tv_modes[i].name;
drm_mode_create_tv_properties(dev,
ARRAY_SIZE(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,
intel_tv->margin[TV_MARGIN_LEFT]);
drm_connector_attach_property(connector,
dev->mode_config.tv_top_margin_property,
intel_tv->margin[TV_MARGIN_TOP]);
drm_connector_attach_property(connector,
dev->mode_config.tv_right_margin_property,
intel_tv->margin[TV_MARGIN_RIGHT]);
drm_connector_attach_property(connector,
dev->mode_config.tv_bottom_margin_property,
intel_tv->margin[TV_MARGIN_BOTTOM]);
drm_sysfs_connector_add(connector);
}
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