tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright © 2006-2008 Intel Corporation
3 * Jesse Barnes <jesse.barnes@intel.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Eric Anholt <eric@anholt.net>
26 *
27 */
28
29/** @file
30 * Integrated TV-out support for the 915GM and 945GM.
31 */
32
33#include <drm/drmP.h>
34#include <drm/drm_crtc.h>
35#include <drm/drm_edid.h>
36#include "intel_drv.h"
37#include <drm/i915_drm.h>
38#include "i915_drv.h"
39
40enum tv_margin {
41 TV_MARGIN_LEFT, TV_MARGIN_TOP,
42 TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
43};
44
45/** Private structure for the integrated TV support */
46struct intel_tv {
47 struct intel_encoder base;
48
49 int type;
50 const char *tv_format;
51 int margin[4];
52 u32 save_TV_H_CTL_1;
53 u32 save_TV_H_CTL_2;
54 u32 save_TV_H_CTL_3;
55 u32 save_TV_V_CTL_1;
56 u32 save_TV_V_CTL_2;
57 u32 save_TV_V_CTL_3;
58 u32 save_TV_V_CTL_4;
59 u32 save_TV_V_CTL_5;
60 u32 save_TV_V_CTL_6;
61 u32 save_TV_V_CTL_7;
62 u32 save_TV_SC_CTL_1, save_TV_SC_CTL_2, save_TV_SC_CTL_3;
63
64 u32 save_TV_CSC_Y;
65 u32 save_TV_CSC_Y2;
66 u32 save_TV_CSC_U;
67 u32 save_TV_CSC_U2;
68 u32 save_TV_CSC_V;
69 u32 save_TV_CSC_V2;
70 u32 save_TV_CLR_KNOBS;
71 u32 save_TV_CLR_LEVEL;
72 u32 save_TV_WIN_POS;
73 u32 save_TV_WIN_SIZE;
74 u32 save_TV_FILTER_CTL_1;
75 u32 save_TV_FILTER_CTL_2;
76 u32 save_TV_FILTER_CTL_3;
77
78 u32 save_TV_H_LUMA[60];
79 u32 save_TV_H_CHROMA[60];
80 u32 save_TV_V_LUMA[43];
81 u32 save_TV_V_CHROMA[43];
82
83 u32 save_TV_DAC;
84 u32 save_TV_CTL;
85};
86
87struct video_levels {
88 int blank, black, burst;
89};
90
91struct color_conversion {
92 u16 ry, gy, by, ay;
93 u16 ru, gu, bu, au;
94 u16 rv, gv, bv, av;
95};
96
97static const u32 filter_table[] = {
98 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
99 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
100 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
101 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
102 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
103 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
104 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
105 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
106 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
107 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
108 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
109 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
110 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
111 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
112 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
113 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
114 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
115 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
116 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
117 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
118 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
119 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
120 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
121 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
122 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
123 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
124 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
125 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
126 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
127 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
128 0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
129 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
130 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
131 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
132 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
133 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
134 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
135 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
136 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
137 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
138 0x28003100, 0x28002F00, 0x00003100, 0x36403000,
139 0x2D002CC0, 0x30003640, 0x2D0036C0,
140 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
141 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
142 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
143 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
144 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
145 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
146 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
147 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
148 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
149 0x28003100, 0x28002F00, 0x00003100,
150};
151
152/*
153 * Color conversion values have 3 separate fixed point formats:
154 *
155 * 10 bit fields (ay, au)
156 * 1.9 fixed point (b.bbbbbbbbb)
157 * 11 bit fields (ry, by, ru, gu, gv)
158 * exp.mantissa (ee.mmmmmmmmm)
159 * ee = 00 = 10^-1 (0.mmmmmmmmm)
160 * ee = 01 = 10^-2 (0.0mmmmmmmmm)
161 * ee = 10 = 10^-3 (0.00mmmmmmmmm)
162 * ee = 11 = 10^-4 (0.000mmmmmmmmm)
163 * 12 bit fields (gy, rv, bu)
164 * exp.mantissa (eee.mmmmmmmmm)
165 * eee = 000 = 10^-1 (0.mmmmmmmmm)
166 * eee = 001 = 10^-2 (0.0mmmmmmmmm)
167 * eee = 010 = 10^-3 (0.00mmmmmmmmm)
168 * eee = 011 = 10^-4 (0.000mmmmmmmmm)
169 * eee = 100 = reserved
170 * eee = 101 = reserved
171 * eee = 110 = reserved
172 * eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
173 *
174 * Saturation and contrast are 8 bits, with their own representation:
175 * 8 bit field (saturation, contrast)
176 * exp.mantissa (ee.mmmmmm)
177 * ee = 00 = 10^-1 (0.mmmmmm)
178 * ee = 01 = 10^0 (m.mmmmm)
179 * ee = 10 = 10^1 (mm.mmmm)
180 * ee = 11 = 10^2 (mmm.mmm)
181 *
182 * Simple conversion function:
183 *
184 * static u32
185 * float_to_csc_11(float f)
186 * {
187 * u32 exp;
188 * u32 mant;
189 * u32 ret;
190 *
191 * if (f < 0)
192 * f = -f;
193 *
194 * if (f >= 1) {
195 * exp = 0x7;
196 * mant = 1 << 8;
197 * } else {
198 * for (exp = 0; exp < 3 && f < 0.5; exp++)
199 * f *= 2.0;
200 * mant = (f * (1 << 9) + 0.5);
201 * if (mant >= (1 << 9))
202 * mant = (1 << 9) - 1;
203 * }
204 * ret = (exp << 9) | mant;
205 * return ret;
206 * }
207 */
208
209/*
210 * Behold, magic numbers! If we plant them they might grow a big
211 * s-video cable to the sky... or something.
212 *
213 * Pre-converted to appropriate hex value.
214 */
215
216/*
217 * PAL & NTSC values for composite & s-video connections
218 */
219static const struct color_conversion ntsc_m_csc_composite = {
220 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
221 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
222 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
223};
224
225static const struct video_levels ntsc_m_levels_composite = {
226 .blank = 225, .black = 267, .burst = 113,
227};
228
229static const struct color_conversion ntsc_m_csc_svideo = {
230 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
231 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
232 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
233};
234
235static const struct video_levels ntsc_m_levels_svideo = {
236 .blank = 266, .black = 316, .burst = 133,
237};
238
239static const struct color_conversion ntsc_j_csc_composite = {
240 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
241 .ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
242 .rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
243};
244
245static const struct video_levels ntsc_j_levels_composite = {
246 .blank = 225, .black = 225, .burst = 113,
247};
248
249static const struct color_conversion ntsc_j_csc_svideo = {
250 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
251 .ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
252 .rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
253};
254
255static const struct video_levels ntsc_j_levels_svideo = {
256 .blank = 266, .black = 266, .burst = 133,
257};
258
259static const struct color_conversion pal_csc_composite = {
260 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
261 .ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
262 .rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
263};
264
265static const struct video_levels pal_levels_composite = {
266 .blank = 237, .black = 237, .burst = 118,
267};
268
269static const struct color_conversion pal_csc_svideo = {
270 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
271 .ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
272 .rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
273};
274
275static const struct video_levels pal_levels_svideo = {
276 .blank = 280, .black = 280, .burst = 139,
277};
278
279static const struct color_conversion pal_m_csc_composite = {
280 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
281 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
282 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
283};
284
285static const struct video_levels pal_m_levels_composite = {
286 .blank = 225, .black = 267, .burst = 113,
287};
288
289static const struct color_conversion pal_m_csc_svideo = {
290 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
291 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
292 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
293};
294
295static const struct video_levels pal_m_levels_svideo = {
296 .blank = 266, .black = 316, .burst = 133,
297};
298
299static const struct color_conversion pal_n_csc_composite = {
300 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
301 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
302 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
303};
304
305static const struct video_levels pal_n_levels_composite = {
306 .blank = 225, .black = 267, .burst = 118,
307};
308
309static const struct color_conversion pal_n_csc_svideo = {
310 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
311 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
312 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
313};
314
315static const struct video_levels pal_n_levels_svideo = {
316 .blank = 266, .black = 316, .burst = 139,
317};
318
319/*
320 * Component connections
321 */
322static const struct color_conversion sdtv_csc_yprpb = {
323 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
324 .ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
325 .rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
326};
327
328static const struct color_conversion sdtv_csc_rgb = {
329 .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
330 .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
331 .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
332};
333
334static const struct color_conversion hdtv_csc_yprpb = {
335 .ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
336 .ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
337 .rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
338};
339
340static const struct color_conversion hdtv_csc_rgb = {
341 .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
342 .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
343 .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
344};
345
346static const struct video_levels component_levels = {
347 .blank = 279, .black = 279, .burst = 0,
348};
349
350
351struct tv_mode {
352 const char *name;
353 int clock;
354 int refresh; /* in millihertz (for precision) */
355 u32 oversample;
356 int hsync_end, hblank_start, hblank_end, htotal;
357 bool progressive, trilevel_sync, component_only;
358 int vsync_start_f1, vsync_start_f2, vsync_len;
359 bool veq_ena;
360 int veq_start_f1, veq_start_f2, veq_len;
361 int vi_end_f1, vi_end_f2, nbr_end;
362 bool burst_ena;
363 int hburst_start, hburst_len;
364 int vburst_start_f1, vburst_end_f1;
365 int vburst_start_f2, vburst_end_f2;
366 int vburst_start_f3, vburst_end_f3;
367 int vburst_start_f4, vburst_end_f4;
368 /*
369 * subcarrier programming
370 */
371 int dda2_size, dda3_size, dda1_inc, dda2_inc, dda3_inc;
372 u32 sc_reset;
373 bool pal_burst;
374 /*
375 * blank/black levels
376 */
377 const struct video_levels *composite_levels, *svideo_levels;
378 const struct color_conversion *composite_color, *svideo_color;
379 const u32 *filter_table;
380 int max_srcw;
381};
382
383
384/*
385 * Sub carrier DDA
386 *
387 * I think this works as follows:
388 *
389 * subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
390 *
391 * Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
392 *
393 * So,
394 * dda1_ideal = subcarrier/pixel * 4096
395 * dda1_inc = floor (dda1_ideal)
396 * dda2 = dda1_ideal - dda1_inc
397 *
398 * then pick a ratio for dda2 that gives the closest approximation. If
399 * you can't get close enough, you can play with dda3 as well. This
400 * seems likely to happen when dda2 is small as the jumps would be larger
401 *
402 * To invert this,
403 *
404 * pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
405 *
406 * The constants below were all computed using a 107.520MHz clock
407 */
408
409/**
410 * Register programming values for TV modes.
411 *
412 * These values account for -1s required.
413 */
414
415static const struct tv_mode tv_modes[] = {
416 {
417 .name = "NTSC-M",
418 .clock = 108000,
419 .refresh = 59940,
420 .oversample = TV_OVERSAMPLE_8X,
421 .component_only = 0,
422 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
423
424 .hsync_end = 64, .hblank_end = 124,
425 .hblank_start = 836, .htotal = 857,
426
427 .progressive = false, .trilevel_sync = false,
428
429 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
430 .vsync_len = 6,
431
432 .veq_ena = true, .veq_start_f1 = 0,
433 .veq_start_f2 = 1, .veq_len = 18,
434
435 .vi_end_f1 = 20, .vi_end_f2 = 21,
436 .nbr_end = 240,
437
438 .burst_ena = true,
439 .hburst_start = 72, .hburst_len = 34,
440 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
441 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
442 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
443 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
444
445 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
446 .dda1_inc = 135,
447 .dda2_inc = 20800, .dda2_size = 27456,
448 .dda3_inc = 0, .dda3_size = 0,
449 .sc_reset = TV_SC_RESET_EVERY_4,
450 .pal_burst = false,
451
452 .composite_levels = &ntsc_m_levels_composite,
453 .composite_color = &ntsc_m_csc_composite,
454 .svideo_levels = &ntsc_m_levels_svideo,
455 .svideo_color = &ntsc_m_csc_svideo,
456
457 .filter_table = filter_table,
458 },
459 {
460 .name = "NTSC-443",
461 .clock = 108000,
462 .refresh = 59940,
463 .oversample = TV_OVERSAMPLE_8X,
464 .component_only = 0,
465 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
466 .hsync_end = 64, .hblank_end = 124,
467 .hblank_start = 836, .htotal = 857,
468
469 .progressive = false, .trilevel_sync = false,
470
471 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
472 .vsync_len = 6,
473
474 .veq_ena = true, .veq_start_f1 = 0,
475 .veq_start_f2 = 1, .veq_len = 18,
476
477 .vi_end_f1 = 20, .vi_end_f2 = 21,
478 .nbr_end = 240,
479
480 .burst_ena = true,
481 .hburst_start = 72, .hburst_len = 34,
482 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
483 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
484 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
485 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
486
487 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
488 .dda1_inc = 168,
489 .dda2_inc = 4093, .dda2_size = 27456,
490 .dda3_inc = 310, .dda3_size = 525,
491 .sc_reset = TV_SC_RESET_NEVER,
492 .pal_burst = false,
493
494 .composite_levels = &ntsc_m_levels_composite,
495 .composite_color = &ntsc_m_csc_composite,
496 .svideo_levels = &ntsc_m_levels_svideo,
497 .svideo_color = &ntsc_m_csc_svideo,
498
499 .filter_table = filter_table,
500 },
501 {
502 .name = "NTSC-J",
503 .clock = 108000,
504 .refresh = 59940,
505 .oversample = TV_OVERSAMPLE_8X,
506 .component_only = 0,
507
508 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
509 .hsync_end = 64, .hblank_end = 124,
510 .hblank_start = 836, .htotal = 857,
511
512 .progressive = false, .trilevel_sync = false,
513
514 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
515 .vsync_len = 6,
516
517 .veq_ena = true, .veq_start_f1 = 0,
518 .veq_start_f2 = 1, .veq_len = 18,
519
520 .vi_end_f1 = 20, .vi_end_f2 = 21,
521 .nbr_end = 240,
522
523 .burst_ena = true,
524 .hburst_start = 72, .hburst_len = 34,
525 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
526 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
527 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
528 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
529
530 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
531 .dda1_inc = 135,
532 .dda2_inc = 20800, .dda2_size = 27456,
533 .dda3_inc = 0, .dda3_size = 0,
534 .sc_reset = TV_SC_RESET_EVERY_4,
535 .pal_burst = false,
536
537 .composite_levels = &ntsc_j_levels_composite,
538 .composite_color = &ntsc_j_csc_composite,
539 .svideo_levels = &ntsc_j_levels_svideo,
540 .svideo_color = &ntsc_j_csc_svideo,
541
542 .filter_table = filter_table,
543 },
544 {
545 .name = "PAL-M",
546 .clock = 108000,
547 .refresh = 59940,
548 .oversample = TV_OVERSAMPLE_8X,
549 .component_only = 0,
550
551 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
552 .hsync_end = 64, .hblank_end = 124,
553 .hblank_start = 836, .htotal = 857,
554
555 .progressive = false, .trilevel_sync = false,
556
557 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
558 .vsync_len = 6,
559
560 .veq_ena = true, .veq_start_f1 = 0,
561 .veq_start_f2 = 1, .veq_len = 18,
562
563 .vi_end_f1 = 20, .vi_end_f2 = 21,
564 .nbr_end = 240,
565
566 .burst_ena = true,
567 .hburst_start = 72, .hburst_len = 34,
568 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
569 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
570 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
571 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
572
573 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
574 .dda1_inc = 135,
575 .dda2_inc = 16704, .dda2_size = 27456,
576 .dda3_inc = 0, .dda3_size = 0,
577 .sc_reset = TV_SC_RESET_EVERY_8,
578 .pal_burst = true,
579
580 .composite_levels = &pal_m_levels_composite,
581 .composite_color = &pal_m_csc_composite,
582 .svideo_levels = &pal_m_levels_svideo,
583 .svideo_color = &pal_m_csc_svideo,
584
585 .filter_table = filter_table,
586 },
587 {
588 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
589 .name = "PAL-N",
590 .clock = 108000,
591 .refresh = 50000,
592 .oversample = TV_OVERSAMPLE_8X,
593 .component_only = 0,
594
595 .hsync_end = 64, .hblank_end = 128,
596 .hblank_start = 844, .htotal = 863,
597
598 .progressive = false, .trilevel_sync = false,
599
600
601 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
602 .vsync_len = 6,
603
604 .veq_ena = true, .veq_start_f1 = 0,
605 .veq_start_f2 = 1, .veq_len = 18,
606
607 .vi_end_f1 = 24, .vi_end_f2 = 25,
608 .nbr_end = 286,
609
610 .burst_ena = true,
611 .hburst_start = 73, .hburst_len = 34,
612 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
613 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
614 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
615 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
616
617
618 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
619 .dda1_inc = 135,
620 .dda2_inc = 23578, .dda2_size = 27648,
621 .dda3_inc = 134, .dda3_size = 625,
622 .sc_reset = TV_SC_RESET_EVERY_8,
623 .pal_burst = true,
624
625 .composite_levels = &pal_n_levels_composite,
626 .composite_color = &pal_n_csc_composite,
627 .svideo_levels = &pal_n_levels_svideo,
628 .svideo_color = &pal_n_csc_svideo,
629
630 .filter_table = filter_table,
631 },
632 {
633 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
634 .name = "PAL",
635 .clock = 108000,
636 .refresh = 50000,
637 .oversample = TV_OVERSAMPLE_8X,
638 .component_only = 0,
639
640 .hsync_end = 64, .hblank_end = 142,
641 .hblank_start = 844, .htotal = 863,
642
643 .progressive = false, .trilevel_sync = false,
644
645 .vsync_start_f1 = 5, .vsync_start_f2 = 6,
646 .vsync_len = 5,
647
648 .veq_ena = true, .veq_start_f1 = 0,
649 .veq_start_f2 = 1, .veq_len = 15,
650
651 .vi_end_f1 = 24, .vi_end_f2 = 25,
652 .nbr_end = 286,
653
654 .burst_ena = true,
655 .hburst_start = 73, .hburst_len = 32,
656 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
657 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
658 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
659 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
660
661 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
662 .dda1_inc = 168,
663 .dda2_inc = 4122, .dda2_size = 27648,
664 .dda3_inc = 67, .dda3_size = 625,
665 .sc_reset = TV_SC_RESET_EVERY_8,
666 .pal_burst = true,
667
668 .composite_levels = &pal_levels_composite,
669 .composite_color = &pal_csc_composite,
670 .svideo_levels = &pal_levels_svideo,
671 .svideo_color = &pal_csc_svideo,
672
673 .filter_table = filter_table,
674 },
675 {
676 .name = "480p",
677 .clock = 107520,
678 .refresh = 59940,
679 .oversample = TV_OVERSAMPLE_4X,
680 .component_only = 1,
681
682 .hsync_end = 64, .hblank_end = 122,
683 .hblank_start = 842, .htotal = 857,
684
685 .progressive = true, .trilevel_sync = false,
686
687 .vsync_start_f1 = 12, .vsync_start_f2 = 12,
688 .vsync_len = 12,
689
690 .veq_ena = false,
691
692 .vi_end_f1 = 44, .vi_end_f2 = 44,
693 .nbr_end = 479,
694
695 .burst_ena = false,
696
697 .filter_table = filter_table,
698 },
699 {
700 .name = "576p",
701 .clock = 107520,
702 .refresh = 50000,
703 .oversample = TV_OVERSAMPLE_4X,
704 .component_only = 1,
705
706 .hsync_end = 64, .hblank_end = 139,
707 .hblank_start = 859, .htotal = 863,
708
709 .progressive = true, .trilevel_sync = false,
710
711 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
712 .vsync_len = 10,
713
714 .veq_ena = false,
715
716 .vi_end_f1 = 48, .vi_end_f2 = 48,
717 .nbr_end = 575,
718
719 .burst_ena = false,
720
721 .filter_table = filter_table,
722 },
723 {
724 .name = "720p@60Hz",
725 .clock = 148800,
726 .refresh = 60000,
727 .oversample = TV_OVERSAMPLE_2X,
728 .component_only = 1,
729
730 .hsync_end = 80, .hblank_end = 300,
731 .hblank_start = 1580, .htotal = 1649,
732
733 .progressive = true, .trilevel_sync = true,
734
735 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
736 .vsync_len = 10,
737
738 .veq_ena = false,
739
740 .vi_end_f1 = 29, .vi_end_f2 = 29,
741 .nbr_end = 719,
742
743 .burst_ena = false,
744
745 .filter_table = filter_table,
746 },
747 {
748 .name = "720p@50Hz",
749 .clock = 148800,
750 .refresh = 50000,
751 .oversample = TV_OVERSAMPLE_2X,
752 .component_only = 1,
753
754 .hsync_end = 80, .hblank_end = 300,
755 .hblank_start = 1580, .htotal = 1979,
756
757 .progressive = true, .trilevel_sync = true,
758
759 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
760 .vsync_len = 10,
761
762 .veq_ena = false,
763
764 .vi_end_f1 = 29, .vi_end_f2 = 29,
765 .nbr_end = 719,
766
767 .burst_ena = false,
768
769 .filter_table = filter_table,
770 .max_srcw = 800
771 },
772 {
773 .name = "1080i@50Hz",
774 .clock = 148800,
775 .refresh = 50000,
776 .oversample = TV_OVERSAMPLE_2X,
777 .component_only = 1,
778
779 .hsync_end = 88, .hblank_end = 235,
780 .hblank_start = 2155, .htotal = 2639,
781
782 .progressive = false, .trilevel_sync = true,
783
784 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
785 .vsync_len = 10,
786
787 .veq_ena = true, .veq_start_f1 = 4,
788 .veq_start_f2 = 4, .veq_len = 10,
789
790
791 .vi_end_f1 = 21, .vi_end_f2 = 22,
792 .nbr_end = 539,
793
794 .burst_ena = false,
795
796 .filter_table = filter_table,
797 },
798 {
799 .name = "1080i@60Hz",
800 .clock = 148800,
801 .refresh = 60000,
802 .oversample = TV_OVERSAMPLE_2X,
803 .component_only = 1,
804
805 .hsync_end = 88, .hblank_end = 235,
806 .hblank_start = 2155, .htotal = 2199,
807
808 .progressive = false, .trilevel_sync = true,
809
810 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
811 .vsync_len = 10,
812
813 .veq_ena = true, .veq_start_f1 = 4,
814 .veq_start_f2 = 4, .veq_len = 10,
815
816
817 .vi_end_f1 = 21, .vi_end_f2 = 22,
818 .nbr_end = 539,
819
820 .burst_ena = false,
821
822 .filter_table = filter_table,
823 },
824};
825
826static struct intel_tv *enc_to_tv(struct intel_encoder *encoder)
827{
828 return container_of(encoder, struct intel_tv, base);
829}
830
831static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
832{
833 return enc_to_tv(intel_attached_encoder(connector));
834}
835
836static bool
837intel_tv_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe)
838{
839 struct drm_device *dev = encoder->base.dev;
840 struct drm_i915_private *dev_priv = dev->dev_private;
841 u32 tmp = I915_READ(TV_CTL);
842
843 if (!(tmp & TV_ENC_ENABLE))
844 return false;
845
846 *pipe = PORT_TO_PIPE(tmp);
847
848 return true;
849}
850
851static void
852intel_enable_tv(struct intel_encoder *encoder)
853{
854 struct drm_device *dev = encoder->base.dev;
855 struct drm_i915_private *dev_priv = dev->dev_private;
856
857 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
858}
859
860static void
861intel_disable_tv(struct intel_encoder *encoder)
862{
863 struct drm_device *dev = encoder->base.dev;
864 struct drm_i915_private *dev_priv = dev->dev_private;
865
866 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
867}
868
869static const struct tv_mode *
870intel_tv_mode_lookup(const char *tv_format)
871{
872 int i;
873
874 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
875 const struct tv_mode *tv_mode = &tv_modes[i];
876
877 if (!strcmp(tv_format, tv_mode->name))
878 return tv_mode;
879 }
880 return NULL;
881}
882
883static const struct tv_mode *
884intel_tv_mode_find(struct intel_tv *intel_tv)
885{
886 return intel_tv_mode_lookup(intel_tv->tv_format);
887}
888
889static enum drm_mode_status
890intel_tv_mode_valid(struct drm_connector *connector,
891 struct drm_display_mode *mode)
892{
893 struct intel_tv *intel_tv = intel_attached_tv(connector);
894 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
895
896 /* Ensure TV refresh is close to desired refresh */
897 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
898 < 1000)
899 return MODE_OK;
900
901 return MODE_CLOCK_RANGE;
902}
903
904
905static void
906intel_tv_get_config(struct intel_encoder *encoder,
907 struct intel_crtc_config *pipe_config)
908{
909 pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock;
910}
911
912static bool
913intel_tv_compute_config(struct intel_encoder *encoder,
914 struct intel_crtc_config *pipe_config)
915{
916 struct intel_tv *intel_tv = enc_to_tv(encoder);
917 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
918
919 if (!tv_mode)
920 return false;
921
922 pipe_config->adjusted_mode.crtc_clock = tv_mode->clock;
923 DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
924 pipe_config->pipe_bpp = 8*3;
925
926 /* TV has it's own notion of sync and other mode flags, so clear them. */
927 pipe_config->adjusted_mode.flags = 0;
928
929 /*
930 * FIXME: We don't check whether the input mode is actually what we want
931 * or whether userspace is doing something stupid.
932 */
933
934 return true;
935}
936
937static void intel_tv_mode_set(struct intel_encoder *encoder)
938{
939 struct drm_device *dev = encoder->base.dev;
940 struct drm_i915_private *dev_priv = dev->dev_private;
941 struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
942 struct intel_tv *intel_tv = enc_to_tv(encoder);
943 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
944 u32 tv_ctl;
945 u32 hctl1, hctl2, hctl3;
946 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
947 u32 scctl1, scctl2, scctl3;
948 int i, j;
949 const struct video_levels *video_levels;
950 const struct color_conversion *color_conversion;
951 bool burst_ena;
952 int pipe = intel_crtc->pipe;
953
954 if (!tv_mode)
955 return; /* can't happen (mode_prepare prevents this) */
956
957 tv_ctl = I915_READ(TV_CTL);
958 tv_ctl &= TV_CTL_SAVE;
959
960 switch (intel_tv->type) {
961 default:
962 case DRM_MODE_CONNECTOR_Unknown:
963 case DRM_MODE_CONNECTOR_Composite:
964 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
965 video_levels = tv_mode->composite_levels;
966 color_conversion = tv_mode->composite_color;
967 burst_ena = tv_mode->burst_ena;
968 break;
969 case DRM_MODE_CONNECTOR_Component:
970 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
971 video_levels = &component_levels;
972 if (tv_mode->burst_ena)
973 color_conversion = &sdtv_csc_yprpb;
974 else
975 color_conversion = &hdtv_csc_yprpb;
976 burst_ena = false;
977 break;
978 case DRM_MODE_CONNECTOR_SVIDEO:
979 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
980 video_levels = tv_mode->svideo_levels;
981 color_conversion = tv_mode->svideo_color;
982 burst_ena = tv_mode->burst_ena;
983 break;
984 }
985 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
986 (tv_mode->htotal << TV_HTOTAL_SHIFT);
987
988 hctl2 = (tv_mode->hburst_start << 16) |
989 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
990
991 if (burst_ena)
992 hctl2 |= TV_BURST_ENA;
993
994 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
995 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
996
997 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
998 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
999 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
1000
1001 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
1002 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
1003 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
1004
1005 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
1006 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
1007 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
1008
1009 if (tv_mode->veq_ena)
1010 vctl3 |= TV_EQUAL_ENA;
1011
1012 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
1013 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
1014
1015 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
1016 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
1017
1018 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
1019 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
1020
1021 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
1022 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
1023
1024 if (intel_crtc->pipe == 1)
1025 tv_ctl |= TV_ENC_PIPEB_SELECT;
1026 tv_ctl |= tv_mode->oversample;
1027
1028 if (tv_mode->progressive)
1029 tv_ctl |= TV_PROGRESSIVE;
1030 if (tv_mode->trilevel_sync)
1031 tv_ctl |= TV_TRILEVEL_SYNC;
1032 if (tv_mode->pal_burst)
1033 tv_ctl |= TV_PAL_BURST;
1034
1035 scctl1 = 0;
1036 if (tv_mode->dda1_inc)
1037 scctl1 |= TV_SC_DDA1_EN;
1038 if (tv_mode->dda2_inc)
1039 scctl1 |= TV_SC_DDA2_EN;
1040 if (tv_mode->dda3_inc)
1041 scctl1 |= TV_SC_DDA3_EN;
1042 scctl1 |= tv_mode->sc_reset;
1043 if (video_levels)
1044 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1045 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1046
1047 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1048 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1049
1050 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1051 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1052
1053 /* Enable two fixes for the chips that need them. */
1054 if (dev->pdev->device < 0x2772)
1055 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1056
1057 I915_WRITE(TV_H_CTL_1, hctl1);
1058 I915_WRITE(TV_H_CTL_2, hctl2);
1059 I915_WRITE(TV_H_CTL_3, hctl3);
1060 I915_WRITE(TV_V_CTL_1, vctl1);
1061 I915_WRITE(TV_V_CTL_2, vctl2);
1062 I915_WRITE(TV_V_CTL_3, vctl3);
1063 I915_WRITE(TV_V_CTL_4, vctl4);
1064 I915_WRITE(TV_V_CTL_5, vctl5);
1065 I915_WRITE(TV_V_CTL_6, vctl6);
1066 I915_WRITE(TV_V_CTL_7, vctl7);
1067 I915_WRITE(TV_SC_CTL_1, scctl1);
1068 I915_WRITE(TV_SC_CTL_2, scctl2);
1069 I915_WRITE(TV_SC_CTL_3, scctl3);
1070
1071 if (color_conversion) {
1072 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1073 color_conversion->gy);
1074 I915_WRITE(TV_CSC_Y2, (color_conversion->by << 16) |
1075 color_conversion->ay);
1076 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1077 color_conversion->gu);
1078 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1079 color_conversion->au);
1080 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1081 color_conversion->gv);
1082 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1083 color_conversion->av);
1084 }
1085
1086 if (INTEL_INFO(dev)->gen >= 4)
1087 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1088 else
1089 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1090
1091 if (video_levels)
1092 I915_WRITE(TV_CLR_LEVEL,
1093 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1094 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1095 {
1096 int pipeconf_reg = PIPECONF(pipe);
1097 int dspcntr_reg = DSPCNTR(intel_crtc->plane);
1098 int pipeconf = I915_READ(pipeconf_reg);
1099 int dspcntr = I915_READ(dspcntr_reg);
1100 int xpos = 0x0, ypos = 0x0;
1101 unsigned int xsize, ysize;
1102 /* Pipe must be off here */
1103 I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
1104 intel_flush_primary_plane(dev_priv, intel_crtc->plane);
1105
1106 /* Wait for vblank for the disable to take effect */
1107 if (IS_GEN2(dev))
1108 intel_wait_for_vblank(dev, intel_crtc->pipe);
1109
1110 I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
1111 /* Wait for vblank for the disable to take effect. */
1112 intel_wait_for_pipe_off(dev, intel_crtc->pipe);
1113
1114 /* Filter ctl must be set before TV_WIN_SIZE */
1115 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1116 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1117 if (tv_mode->progressive)
1118 ysize = tv_mode->nbr_end + 1;
1119 else
1120 ysize = 2*tv_mode->nbr_end + 1;
1121
1122 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1123 ypos += intel_tv->margin[TV_MARGIN_TOP];
1124 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1125 intel_tv->margin[TV_MARGIN_RIGHT]);
1126 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1127 intel_tv->margin[TV_MARGIN_BOTTOM]);
1128 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1129 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1130
1131 I915_WRITE(pipeconf_reg, pipeconf);
1132 I915_WRITE(dspcntr_reg, dspcntr);
1133 intel_flush_primary_plane(dev_priv, intel_crtc->plane);
1134 }
1135
1136 j = 0;
1137 for (i = 0; i < 60; i++)
1138 I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1139 for (i = 0; i < 60; i++)
1140 I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1141 for (i = 0; i < 43; i++)
1142 I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1143 for (i = 0; i < 43; i++)
1144 I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1145 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1146 I915_WRITE(TV_CTL, tv_ctl);
1147}
1148
1149static const struct drm_display_mode reported_modes[] = {
1150 {
1151 .name = "NTSC 480i",
1152 .clock = 107520,
1153 .hdisplay = 1280,
1154 .hsync_start = 1368,
1155 .hsync_end = 1496,
1156 .htotal = 1712,
1157
1158 .vdisplay = 1024,
1159 .vsync_start = 1027,
1160 .vsync_end = 1034,
1161 .vtotal = 1104,
1162 .type = DRM_MODE_TYPE_DRIVER,
1163 },
1164};
1165
1166/**
1167 * Detects TV presence by checking for load.
1168 *
1169 * Requires that the current pipe's DPLL is active.
1170
1171 * \return true if TV is connected.
1172 * \return false if TV is disconnected.
1173 */
1174static int
1175intel_tv_detect_type(struct intel_tv *intel_tv,
1176 struct drm_connector *connector)
1177{
1178 struct drm_encoder *encoder = &intel_tv->base.base;
1179 struct drm_crtc *crtc = encoder->crtc;
1180 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1181 struct drm_device *dev = encoder->dev;
1182 struct drm_i915_private *dev_priv = dev->dev_private;
1183 unsigned long irqflags;
1184 u32 tv_ctl, save_tv_ctl;
1185 u32 tv_dac, save_tv_dac;
1186 int type;
1187
1188 /* Disable TV interrupts around load detect or we'll recurse */
1189 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1190 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1191 i915_disable_pipestat(dev_priv, 0,
1192 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1193 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1194 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1195 }
1196
1197 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1198 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1199
1200 /* Poll for TV detection */
1201 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1202 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1203 if (intel_crtc->pipe == 1)
1204 tv_ctl |= TV_ENC_PIPEB_SELECT;
1205 else
1206 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1207
1208 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1209 tv_dac |= (TVDAC_STATE_CHG_EN |
1210 TVDAC_A_SENSE_CTL |
1211 TVDAC_B_SENSE_CTL |
1212 TVDAC_C_SENSE_CTL |
1213 DAC_CTL_OVERRIDE |
1214 DAC_A_0_7_V |
1215 DAC_B_0_7_V |
1216 DAC_C_0_7_V);
1217
1218
1219 /*
1220 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1221 * the TV is misdetected. This is hardware requirement.
1222 */
1223 if (IS_GM45(dev))
1224 tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1225 TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1226
1227 I915_WRITE(TV_CTL, tv_ctl);
1228 I915_WRITE(TV_DAC, tv_dac);
1229 POSTING_READ(TV_DAC);
1230
1231 intel_wait_for_vblank(intel_tv->base.base.dev,
1232 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1233
1234 type = -1;
1235 tv_dac = I915_READ(TV_DAC);
1236 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1237 /*
1238 * A B C
1239 * 0 1 1 Composite
1240 * 1 0 X svideo
1241 * 0 0 0 Component
1242 */
1243 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1244 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1245 type = DRM_MODE_CONNECTOR_Composite;
1246 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1247 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1248 type = DRM_MODE_CONNECTOR_SVIDEO;
1249 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1250 DRM_DEBUG_KMS("Detected Component TV connection\n");
1251 type = DRM_MODE_CONNECTOR_Component;
1252 } else {
1253 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1254 type = -1;
1255 }
1256
1257 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1258 I915_WRITE(TV_CTL, save_tv_ctl);
1259 POSTING_READ(TV_CTL);
1260
1261 /* For unknown reasons the hw barfs if we don't do this vblank wait. */
1262 intel_wait_for_vblank(intel_tv->base.base.dev,
1263 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1264
1265 /* Restore interrupt config */
1266 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1267 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1268 i915_enable_pipestat(dev_priv, 0,
1269 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1270 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1271 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1272 }
1273
1274 return type;
1275}
1276
1277/*
1278 * Here we set accurate tv format according to connector type
1279 * i.e Component TV should not be assigned by NTSC or PAL
1280 */
1281static void intel_tv_find_better_format(struct drm_connector *connector)
1282{
1283 struct intel_tv *intel_tv = intel_attached_tv(connector);
1284 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1285 int i;
1286
1287 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1288 tv_mode->component_only)
1289 return;
1290
1291
1292 for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
1293 tv_mode = tv_modes + i;
1294
1295 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1296 tv_mode->component_only)
1297 break;
1298 }
1299
1300 intel_tv->tv_format = tv_mode->name;
1301 drm_object_property_set_value(&connector->base,
1302 connector->dev->mode_config.tv_mode_property, i);
1303}
1304
1305/**
1306 * Detect the TV connection.
1307 *
1308 * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1309 * we have a pipe programmed in order to probe the TV.
1310 */
1311static enum drm_connector_status
1312intel_tv_detect(struct drm_connector *connector, bool force)
1313{
1314 struct drm_display_mode mode;
1315 struct intel_tv *intel_tv = intel_attached_tv(connector);
1316 int type;
1317
1318 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
1319 connector->base.id, drm_get_connector_name(connector),
1320 force);
1321
1322 mode = reported_modes[0];
1323
1324 if (force) {
1325 struct intel_load_detect_pipe tmp;
1326
1327 if (intel_get_load_detect_pipe(connector, &mode, &tmp)) {
1328 type = intel_tv_detect_type(intel_tv, connector);
1329 intel_release_load_detect_pipe(connector, &tmp);
1330 } else
1331 return connector_status_unknown;
1332 } else
1333 return connector->status;
1334
1335 if (type < 0)
1336 return connector_status_disconnected;
1337
1338 intel_tv->type = type;
1339 intel_tv_find_better_format(connector);
1340
1341 return connector_status_connected;
1342}
1343
1344static const struct input_res {
1345 const char *name;
1346 int w, h;
1347} input_res_table[] = {
1348 {"640x480", 640, 480},
1349 {"800x600", 800, 600},
1350 {"1024x768", 1024, 768},
1351 {"1280x1024", 1280, 1024},
1352 {"848x480", 848, 480},
1353 {"1280x720", 1280, 720},
1354 {"1920x1080", 1920, 1080},
1355};
1356
1357/*
1358 * Chose preferred mode according to line number of TV format
1359 */
1360static void
1361intel_tv_chose_preferred_modes(struct drm_connector *connector,
1362 struct drm_display_mode *mode_ptr)
1363{
1364 struct intel_tv *intel_tv = intel_attached_tv(connector);
1365 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1366
1367 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1368 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1369 else if (tv_mode->nbr_end > 480) {
1370 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1371 if (mode_ptr->vdisplay == 720)
1372 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1373 } else if (mode_ptr->vdisplay == 1080)
1374 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1375 }
1376}
1377
1378/**
1379 * Stub get_modes function.
1380 *
1381 * This should probably return a set of fixed modes, unless we can figure out
1382 * how to probe modes off of TV connections.
1383 */
1384
1385static int
1386intel_tv_get_modes(struct drm_connector *connector)
1387{
1388 struct drm_display_mode *mode_ptr;
1389 struct intel_tv *intel_tv = intel_attached_tv(connector);
1390 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1391 int j, count = 0;
1392 u64 tmp;
1393
1394 for (j = 0; j < ARRAY_SIZE(input_res_table);
1395 j++) {
1396 const struct input_res *input = &input_res_table[j];
1397 unsigned int hactive_s = input->w;
1398 unsigned int vactive_s = input->h;
1399
1400 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1401 continue;
1402
1403 if (input->w > 1024 && (!tv_mode->progressive
1404 && !tv_mode->component_only))
1405 continue;
1406
1407 mode_ptr = drm_mode_create(connector->dev);
1408 if (!mode_ptr)
1409 continue;
1410 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1411
1412 mode_ptr->hdisplay = hactive_s;
1413 mode_ptr->hsync_start = hactive_s + 1;
1414 mode_ptr->hsync_end = hactive_s + 64;
1415 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1416 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1417 mode_ptr->htotal = hactive_s + 96;
1418
1419 mode_ptr->vdisplay = vactive_s;
1420 mode_ptr->vsync_start = vactive_s + 1;
1421 mode_ptr->vsync_end = vactive_s + 32;
1422 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1423 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1424 mode_ptr->vtotal = vactive_s + 33;
1425
1426 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1427 tmp *= mode_ptr->htotal;
1428 tmp = div_u64(tmp, 1000000);
1429 mode_ptr->clock = (int) tmp;
1430
1431 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1432 intel_tv_chose_preferred_modes(connector, mode_ptr);
1433 drm_mode_probed_add(connector, mode_ptr);
1434 count++;
1435 }
1436
1437 return count;
1438}
1439
1440static void
1441intel_tv_destroy(struct drm_connector *connector)
1442{
1443 drm_connector_cleanup(connector);
1444 kfree(connector);
1445}
1446
1447
1448static int
1449intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1450 uint64_t val)
1451{
1452 struct drm_device *dev = connector->dev;
1453 struct intel_tv *intel_tv = intel_attached_tv(connector);
1454 struct drm_crtc *crtc = intel_tv->base.base.crtc;
1455 int ret = 0;
1456 bool changed = false;
1457
1458 ret = drm_object_property_set_value(&connector->base, property, val);
1459 if (ret < 0)
1460 goto out;
1461
1462 if (property == dev->mode_config.tv_left_margin_property &&
1463 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1464 intel_tv->margin[TV_MARGIN_LEFT] = val;
1465 changed = true;
1466 } else if (property == dev->mode_config.tv_right_margin_property &&
1467 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1468 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1469 changed = true;
1470 } else if (property == dev->mode_config.tv_top_margin_property &&
1471 intel_tv->margin[TV_MARGIN_TOP] != val) {
1472 intel_tv->margin[TV_MARGIN_TOP] = val;
1473 changed = true;
1474 } else if (property == dev->mode_config.tv_bottom_margin_property &&
1475 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1476 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1477 changed = true;
1478 } else if (property == dev->mode_config.tv_mode_property) {
1479 if (val >= ARRAY_SIZE(tv_modes)) {
1480 ret = -EINVAL;
1481 goto out;
1482 }
1483 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1484 goto out;
1485
1486 intel_tv->tv_format = tv_modes[val].name;
1487 changed = true;
1488 } else {
1489 ret = -EINVAL;
1490 goto out;
1491 }
1492
1493 if (changed && crtc)
1494 intel_crtc_restore_mode(crtc);
1495out:
1496 return ret;
1497}
1498
1499static const struct drm_connector_funcs intel_tv_connector_funcs = {
1500 .dpms = intel_connector_dpms,
1501 .detect = intel_tv_detect,
1502 .destroy = intel_tv_destroy,
1503 .set_property = intel_tv_set_property,
1504 .fill_modes = drm_helper_probe_single_connector_modes,
1505};
1506
1507static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1508 .mode_valid = intel_tv_mode_valid,
1509 .get_modes = intel_tv_get_modes,
1510 .best_encoder = intel_best_encoder,
1511};
1512
1513static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1514 .destroy = intel_encoder_destroy,
1515};
1516
1517/*
1518 * Enumerate the child dev array parsed from VBT to check whether
1519 * the integrated TV is present.
1520 * If it is present, return 1.
1521 * If it is not present, return false.
1522 * If no child dev is parsed from VBT, it assumes that the TV is present.
1523 */
1524static int tv_is_present_in_vbt(struct drm_device *dev)
1525{
1526 struct drm_i915_private *dev_priv = dev->dev_private;
1527 union child_device_config *p_child;
1528 int i, ret;
1529
1530 if (!dev_priv->vbt.child_dev_num)
1531 return 1;
1532
1533 ret = 0;
1534 for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
1535 p_child = dev_priv->vbt.child_dev + i;
1536 /*
1537 * If the device type is not TV, continue.
1538 */
1539 if (p_child->old.device_type != DEVICE_TYPE_INT_TV &&
1540 p_child->old.device_type != DEVICE_TYPE_TV)
1541 continue;
1542 /* Only when the addin_offset is non-zero, it is regarded
1543 * as present.
1544 */
1545 if (p_child->old.addin_offset) {
1546 ret = 1;
1547 break;
1548 }
1549 }
1550 return ret;
1551}
1552
1553void
1554intel_tv_init(struct drm_device *dev)
1555{
1556 struct drm_i915_private *dev_priv = dev->dev_private;
1557 struct drm_connector *connector;
1558 struct intel_tv *intel_tv;
1559 struct intel_encoder *intel_encoder;
1560 struct intel_connector *intel_connector;
1561 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1562 char *tv_format_names[ARRAY_SIZE(tv_modes)];
1563 int i, initial_mode = 0;
1564
1565 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1566 return;
1567
1568 if (!tv_is_present_in_vbt(dev)) {
1569 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1570 return;
1571 }
1572 /* Even if we have an encoder we may not have a connector */
1573 if (!dev_priv->vbt.int_tv_support)
1574 return;
1575
1576 /*
1577 * Sanity check the TV output by checking to see if the
1578 * DAC register holds a value
1579 */
1580 save_tv_dac = I915_READ(TV_DAC);
1581
1582 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1583 tv_dac_on = I915_READ(TV_DAC);
1584
1585 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1586 tv_dac_off = I915_READ(TV_DAC);
1587
1588 I915_WRITE(TV_DAC, save_tv_dac);
1589
1590 /*
1591 * If the register does not hold the state change enable
1592 * bit, (either as a 0 or a 1), assume it doesn't really
1593 * exist
1594 */
1595 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1596 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1597 return;
1598
1599 intel_tv = kzalloc(sizeof(*intel_tv), GFP_KERNEL);
1600 if (!intel_tv) {
1601 return;
1602 }
1603
1604 intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
1605 if (!intel_connector) {
1606 kfree(intel_tv);
1607 return;
1608 }
1609
1610 intel_encoder = &intel_tv->base;
1611 connector = &intel_connector->base;
1612
1613 /* The documentation, for the older chipsets at least, recommend
1614 * using a polling method rather than hotplug detection for TVs.
1615 * This is because in order to perform the hotplug detection, the PLLs
1616 * for the TV must be kept alive increasing power drain and starving
1617 * bandwidth from other encoders. Notably for instance, it causes
1618 * pipe underruns on Crestline when this encoder is supposedly idle.
1619 *
1620 * More recent chipsets favour HDMI rather than integrated S-Video.
1621 */
1622 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1623
1624 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1625 DRM_MODE_CONNECTOR_SVIDEO);
1626
1627 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1628 DRM_MODE_ENCODER_TVDAC);
1629
1630 intel_encoder->compute_config = intel_tv_compute_config;
1631 intel_encoder->get_config = intel_tv_get_config;
1632 intel_encoder->mode_set = intel_tv_mode_set;
1633 intel_encoder->enable = intel_enable_tv;
1634 intel_encoder->disable = intel_disable_tv;
1635 intel_encoder->get_hw_state = intel_tv_get_hw_state;
1636 intel_connector->get_hw_state = intel_connector_get_hw_state;
1637
1638 intel_connector_attach_encoder(intel_connector, intel_encoder);
1639 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1640 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1641 intel_encoder->cloneable = false;
1642 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1643 intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
1644 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1645
1646 /* BIOS margin values */
1647 intel_tv->margin[TV_MARGIN_LEFT] = 54;
1648 intel_tv->margin[TV_MARGIN_TOP] = 36;
1649 intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1650 intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1651
1652 intel_tv->tv_format = tv_modes[initial_mode].name;
1653
1654 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1655 connector->interlace_allowed = false;
1656 connector->doublescan_allowed = false;
1657
1658 /* Create TV properties then attach current values */
1659 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1660 tv_format_names[i] = (char *)tv_modes[i].name;
1661 drm_mode_create_tv_properties(dev,
1662 ARRAY_SIZE(tv_modes),
1663 tv_format_names);
1664
1665 drm_object_attach_property(&connector->base, dev->mode_config.tv_mode_property,
1666 initial_mode);
1667 drm_object_attach_property(&connector->base,
1668 dev->mode_config.tv_left_margin_property,
1669 intel_tv->margin[TV_MARGIN_LEFT]);
1670 drm_object_attach_property(&connector->base,
1671 dev->mode_config.tv_top_margin_property,
1672 intel_tv->margin[TV_MARGIN_TOP]);
1673 drm_object_attach_property(&connector->base,
1674 dev->mode_config.tv_right_margin_property,
1675 intel_tv->margin[TV_MARGIN_RIGHT]);
1676 drm_object_attach_property(&connector->base,
1677 dev->mode_config.tv_bottom_margin_property,
1678 intel_tv->margin[TV_MARGIN_BOTTOM]);
1679 drm_sysfs_connector_add(connector);
1680}