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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_atomic_helper.h>
35#include <drm/drm_crtc.h>
36#include <drm/drm_edid.h>
37#include "intel_drv.h"
38#include <drm/i915_drm.h>
39#include "i915_drv.h"
40
41enum tv_margin {
42 TV_MARGIN_LEFT, TV_MARGIN_TOP,
43 TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
44};
45
46/** Private structure for the integrated TV support */
47struct intel_tv {
48 struct intel_encoder base;
49
50 int type;
51 const char *tv_format;
52 int margin[4];
53 u32 save_TV_H_CTL_1;
54 u32 save_TV_H_CTL_2;
55 u32 save_TV_H_CTL_3;
56 u32 save_TV_V_CTL_1;
57 u32 save_TV_V_CTL_2;
58 u32 save_TV_V_CTL_3;
59 u32 save_TV_V_CTL_4;
60 u32 save_TV_V_CTL_5;
61 u32 save_TV_V_CTL_6;
62 u32 save_TV_V_CTL_7;
63 u32 save_TV_SC_CTL_1, save_TV_SC_CTL_2, save_TV_SC_CTL_3;
64
65 u32 save_TV_CSC_Y;
66 u32 save_TV_CSC_Y2;
67 u32 save_TV_CSC_U;
68 u32 save_TV_CSC_U2;
69 u32 save_TV_CSC_V;
70 u32 save_TV_CSC_V2;
71 u32 save_TV_CLR_KNOBS;
72 u32 save_TV_CLR_LEVEL;
73 u32 save_TV_WIN_POS;
74 u32 save_TV_WIN_SIZE;
75 u32 save_TV_FILTER_CTL_1;
76 u32 save_TV_FILTER_CTL_2;
77 u32 save_TV_FILTER_CTL_3;
78
79 u32 save_TV_H_LUMA[60];
80 u32 save_TV_H_CHROMA[60];
81 u32 save_TV_V_LUMA[43];
82 u32 save_TV_V_CHROMA[43];
83
84 u32 save_TV_DAC;
85 u32 save_TV_CTL;
86};
87
88struct video_levels {
89 int blank, black, burst;
90};
91
92struct color_conversion {
93 u16 ry, gy, by, ay;
94 u16 ru, gu, bu, au;
95 u16 rv, gv, bv, av;
96};
97
98static const u32 filter_table[] = {
99 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
100 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
101 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
102 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
103 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
104 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
105 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
106 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
107 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
108 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
109 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
110 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
111 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
112 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
113 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
114 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
115 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
116 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
117 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
118 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
119 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
120 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
121 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
122 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
123 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
124 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
125 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
126 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
127 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
128 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
129 0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
130 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
131 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
132 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
133 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
134 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
135 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
136 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
137 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
138 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
139 0x28003100, 0x28002F00, 0x00003100, 0x36403000,
140 0x2D002CC0, 0x30003640, 0x2D0036C0,
141 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
142 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
143 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
144 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
145 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
146 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
147 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
148 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
149 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
150 0x28003100, 0x28002F00, 0x00003100,
151};
152
153/*
154 * Color conversion values have 3 separate fixed point formats:
155 *
156 * 10 bit fields (ay, au)
157 * 1.9 fixed point (b.bbbbbbbbb)
158 * 11 bit fields (ry, by, ru, gu, gv)
159 * exp.mantissa (ee.mmmmmmmmm)
160 * ee = 00 = 10^-1 (0.mmmmmmmmm)
161 * ee = 01 = 10^-2 (0.0mmmmmmmmm)
162 * ee = 10 = 10^-3 (0.00mmmmmmmmm)
163 * ee = 11 = 10^-4 (0.000mmmmmmmmm)
164 * 12 bit fields (gy, rv, bu)
165 * exp.mantissa (eee.mmmmmmmmm)
166 * eee = 000 = 10^-1 (0.mmmmmmmmm)
167 * eee = 001 = 10^-2 (0.0mmmmmmmmm)
168 * eee = 010 = 10^-3 (0.00mmmmmmmmm)
169 * eee = 011 = 10^-4 (0.000mmmmmmmmm)
170 * eee = 100 = reserved
171 * eee = 101 = reserved
172 * eee = 110 = reserved
173 * eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
174 *
175 * Saturation and contrast are 8 bits, with their own representation:
176 * 8 bit field (saturation, contrast)
177 * exp.mantissa (ee.mmmmmm)
178 * ee = 00 = 10^-1 (0.mmmmmm)
179 * ee = 01 = 10^0 (m.mmmmm)
180 * ee = 10 = 10^1 (mm.mmmm)
181 * ee = 11 = 10^2 (mmm.mmm)
182 *
183 * Simple conversion function:
184 *
185 * static u32
186 * float_to_csc_11(float f)
187 * {
188 * u32 exp;
189 * u32 mant;
190 * u32 ret;
191 *
192 * if (f < 0)
193 * f = -f;
194 *
195 * if (f >= 1) {
196 * exp = 0x7;
197 * mant = 1 << 8;
198 * } else {
199 * for (exp = 0; exp < 3 && f < 0.5; exp++)
200 * f *= 2.0;
201 * mant = (f * (1 << 9) + 0.5);
202 * if (mant >= (1 << 9))
203 * mant = (1 << 9) - 1;
204 * }
205 * ret = (exp << 9) | mant;
206 * return ret;
207 * }
208 */
209
210/*
211 * Behold, magic numbers! If we plant them they might grow a big
212 * s-video cable to the sky... or something.
213 *
214 * Pre-converted to appropriate hex value.
215 */
216
217/*
218 * PAL & NTSC values for composite & s-video connections
219 */
220static const struct color_conversion ntsc_m_csc_composite = {
221 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
222 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
223 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
224};
225
226static const struct video_levels ntsc_m_levels_composite = {
227 .blank = 225, .black = 267, .burst = 113,
228};
229
230static const struct color_conversion ntsc_m_csc_svideo = {
231 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
232 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
233 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
234};
235
236static const struct video_levels ntsc_m_levels_svideo = {
237 .blank = 266, .black = 316, .burst = 133,
238};
239
240static const struct color_conversion ntsc_j_csc_composite = {
241 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
242 .ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
243 .rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
244};
245
246static const struct video_levels ntsc_j_levels_composite = {
247 .blank = 225, .black = 225, .burst = 113,
248};
249
250static const struct color_conversion ntsc_j_csc_svideo = {
251 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
252 .ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
253 .rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
254};
255
256static const struct video_levels ntsc_j_levels_svideo = {
257 .blank = 266, .black = 266, .burst = 133,
258};
259
260static const struct color_conversion pal_csc_composite = {
261 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
262 .ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
263 .rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
264};
265
266static const struct video_levels pal_levels_composite = {
267 .blank = 237, .black = 237, .burst = 118,
268};
269
270static const struct color_conversion pal_csc_svideo = {
271 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
272 .ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
273 .rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
274};
275
276static const struct video_levels pal_levels_svideo = {
277 .blank = 280, .black = 280, .burst = 139,
278};
279
280static const struct color_conversion pal_m_csc_composite = {
281 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
282 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
283 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
284};
285
286static const struct video_levels pal_m_levels_composite = {
287 .blank = 225, .black = 267, .burst = 113,
288};
289
290static const struct color_conversion pal_m_csc_svideo = {
291 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
292 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
293 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
294};
295
296static const struct video_levels pal_m_levels_svideo = {
297 .blank = 266, .black = 316, .burst = 133,
298};
299
300static const struct color_conversion pal_n_csc_composite = {
301 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
302 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
303 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
304};
305
306static const struct video_levels pal_n_levels_composite = {
307 .blank = 225, .black = 267, .burst = 118,
308};
309
310static const struct color_conversion pal_n_csc_svideo = {
311 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
312 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
313 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
314};
315
316static const struct video_levels pal_n_levels_svideo = {
317 .blank = 266, .black = 316, .burst = 139,
318};
319
320/*
321 * Component connections
322 */
323static const struct color_conversion sdtv_csc_yprpb = {
324 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
325 .ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
326 .rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
327};
328
329static const struct color_conversion sdtv_csc_rgb = {
330 .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
331 .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
332 .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
333};
334
335static const struct color_conversion hdtv_csc_yprpb = {
336 .ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
337 .ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
338 .rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
339};
340
341static const struct color_conversion hdtv_csc_rgb = {
342 .ry = 0x0000, .gy = 0x0f00, .by = 0x0000, .ay = 0x0166,
343 .ru = 0x0000, .gu = 0x0000, .bu = 0x0f00, .au = 0x0166,
344 .rv = 0x0f00, .gv = 0x0000, .bv = 0x0000, .av = 0x0166,
345};
346
347static const struct video_levels component_levels = {
348 .blank = 279, .black = 279, .burst = 0,
349};
350
351
352struct tv_mode {
353 const char *name;
354 int clock;
355 int refresh; /* in millihertz (for precision) */
356 u32 oversample;
357 int hsync_end, hblank_start, hblank_end, htotal;
358 bool progressive, trilevel_sync, component_only;
359 int vsync_start_f1, vsync_start_f2, vsync_len;
360 bool veq_ena;
361 int veq_start_f1, veq_start_f2, veq_len;
362 int vi_end_f1, vi_end_f2, nbr_end;
363 bool burst_ena;
364 int hburst_start, hburst_len;
365 int vburst_start_f1, vburst_end_f1;
366 int vburst_start_f2, vburst_end_f2;
367 int vburst_start_f3, vburst_end_f3;
368 int vburst_start_f4, vburst_end_f4;
369 /*
370 * subcarrier programming
371 */
372 int dda2_size, dda3_size, dda1_inc, dda2_inc, dda3_inc;
373 u32 sc_reset;
374 bool pal_burst;
375 /*
376 * blank/black levels
377 */
378 const struct video_levels *composite_levels, *svideo_levels;
379 const struct color_conversion *composite_color, *svideo_color;
380 const u32 *filter_table;
381 int max_srcw;
382};
383
384
385/*
386 * Sub carrier DDA
387 *
388 * I think this works as follows:
389 *
390 * subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
391 *
392 * Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
393 *
394 * So,
395 * dda1_ideal = subcarrier/pixel * 4096
396 * dda1_inc = floor (dda1_ideal)
397 * dda2 = dda1_ideal - dda1_inc
398 *
399 * then pick a ratio for dda2 that gives the closest approximation. If
400 * you can't get close enough, you can play with dda3 as well. This
401 * seems likely to happen when dda2 is small as the jumps would be larger
402 *
403 * To invert this,
404 *
405 * pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
406 *
407 * The constants below were all computed using a 107.520MHz clock
408 */
409
410/**
411 * Register programming values for TV modes.
412 *
413 * These values account for -1s required.
414 */
415
416static const struct tv_mode tv_modes[] = {
417 {
418 .name = "NTSC-M",
419 .clock = 108000,
420 .refresh = 59940,
421 .oversample = TV_OVERSAMPLE_8X,
422 .component_only = 0,
423 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
424
425 .hsync_end = 64, .hblank_end = 124,
426 .hblank_start = 836, .htotal = 857,
427
428 .progressive = false, .trilevel_sync = false,
429
430 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
431 .vsync_len = 6,
432
433 .veq_ena = true, .veq_start_f1 = 0,
434 .veq_start_f2 = 1, .veq_len = 18,
435
436 .vi_end_f1 = 20, .vi_end_f2 = 21,
437 .nbr_end = 240,
438
439 .burst_ena = true,
440 .hburst_start = 72, .hburst_len = 34,
441 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
442 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
443 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
444 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
445
446 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
447 .dda1_inc = 135,
448 .dda2_inc = 20800, .dda2_size = 27456,
449 .dda3_inc = 0, .dda3_size = 0,
450 .sc_reset = TV_SC_RESET_EVERY_4,
451 .pal_burst = false,
452
453 .composite_levels = &ntsc_m_levels_composite,
454 .composite_color = &ntsc_m_csc_composite,
455 .svideo_levels = &ntsc_m_levels_svideo,
456 .svideo_color = &ntsc_m_csc_svideo,
457
458 .filter_table = filter_table,
459 },
460 {
461 .name = "NTSC-443",
462 .clock = 108000,
463 .refresh = 59940,
464 .oversample = TV_OVERSAMPLE_8X,
465 .component_only = 0,
466 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
467 .hsync_end = 64, .hblank_end = 124,
468 .hblank_start = 836, .htotal = 857,
469
470 .progressive = false, .trilevel_sync = false,
471
472 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
473 .vsync_len = 6,
474
475 .veq_ena = true, .veq_start_f1 = 0,
476 .veq_start_f2 = 1, .veq_len = 18,
477
478 .vi_end_f1 = 20, .vi_end_f2 = 21,
479 .nbr_end = 240,
480
481 .burst_ena = true,
482 .hburst_start = 72, .hburst_len = 34,
483 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
484 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
485 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
486 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
487
488 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
489 .dda1_inc = 168,
490 .dda2_inc = 4093, .dda2_size = 27456,
491 .dda3_inc = 310, .dda3_size = 525,
492 .sc_reset = TV_SC_RESET_NEVER,
493 .pal_burst = false,
494
495 .composite_levels = &ntsc_m_levels_composite,
496 .composite_color = &ntsc_m_csc_composite,
497 .svideo_levels = &ntsc_m_levels_svideo,
498 .svideo_color = &ntsc_m_csc_svideo,
499
500 .filter_table = filter_table,
501 },
502 {
503 .name = "NTSC-J",
504 .clock = 108000,
505 .refresh = 59940,
506 .oversample = TV_OVERSAMPLE_8X,
507 .component_only = 0,
508
509 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
510 .hsync_end = 64, .hblank_end = 124,
511 .hblank_start = 836, .htotal = 857,
512
513 .progressive = false, .trilevel_sync = false,
514
515 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
516 .vsync_len = 6,
517
518 .veq_ena = true, .veq_start_f1 = 0,
519 .veq_start_f2 = 1, .veq_len = 18,
520
521 .vi_end_f1 = 20, .vi_end_f2 = 21,
522 .nbr_end = 240,
523
524 .burst_ena = true,
525 .hburst_start = 72, .hburst_len = 34,
526 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
527 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
528 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
529 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
530
531 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
532 .dda1_inc = 135,
533 .dda2_inc = 20800, .dda2_size = 27456,
534 .dda3_inc = 0, .dda3_size = 0,
535 .sc_reset = TV_SC_RESET_EVERY_4,
536 .pal_burst = false,
537
538 .composite_levels = &ntsc_j_levels_composite,
539 .composite_color = &ntsc_j_csc_composite,
540 .svideo_levels = &ntsc_j_levels_svideo,
541 .svideo_color = &ntsc_j_csc_svideo,
542
543 .filter_table = filter_table,
544 },
545 {
546 .name = "PAL-M",
547 .clock = 108000,
548 .refresh = 59940,
549 .oversample = TV_OVERSAMPLE_8X,
550 .component_only = 0,
551
552 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
553 .hsync_end = 64, .hblank_end = 124,
554 .hblank_start = 836, .htotal = 857,
555
556 .progressive = false, .trilevel_sync = false,
557
558 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
559 .vsync_len = 6,
560
561 .veq_ena = true, .veq_start_f1 = 0,
562 .veq_start_f2 = 1, .veq_len = 18,
563
564 .vi_end_f1 = 20, .vi_end_f2 = 21,
565 .nbr_end = 240,
566
567 .burst_ena = true,
568 .hburst_start = 72, .hburst_len = 34,
569 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
570 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
571 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
572 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
573
574 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
575 .dda1_inc = 135,
576 .dda2_inc = 16704, .dda2_size = 27456,
577 .dda3_inc = 0, .dda3_size = 0,
578 .sc_reset = TV_SC_RESET_EVERY_8,
579 .pal_burst = true,
580
581 .composite_levels = &pal_m_levels_composite,
582 .composite_color = &pal_m_csc_composite,
583 .svideo_levels = &pal_m_levels_svideo,
584 .svideo_color = &pal_m_csc_svideo,
585
586 .filter_table = filter_table,
587 },
588 {
589 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
590 .name = "PAL-N",
591 .clock = 108000,
592 .refresh = 50000,
593 .oversample = TV_OVERSAMPLE_8X,
594 .component_only = 0,
595
596 .hsync_end = 64, .hblank_end = 128,
597 .hblank_start = 844, .htotal = 863,
598
599 .progressive = false, .trilevel_sync = false,
600
601
602 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
603 .vsync_len = 6,
604
605 .veq_ena = true, .veq_start_f1 = 0,
606 .veq_start_f2 = 1, .veq_len = 18,
607
608 .vi_end_f1 = 24, .vi_end_f2 = 25,
609 .nbr_end = 286,
610
611 .burst_ena = true,
612 .hburst_start = 73, .hburst_len = 34,
613 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
614 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
615 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
616 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
617
618
619 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
620 .dda1_inc = 135,
621 .dda2_inc = 23578, .dda2_size = 27648,
622 .dda3_inc = 134, .dda3_size = 625,
623 .sc_reset = TV_SC_RESET_EVERY_8,
624 .pal_burst = true,
625
626 .composite_levels = &pal_n_levels_composite,
627 .composite_color = &pal_n_csc_composite,
628 .svideo_levels = &pal_n_levels_svideo,
629 .svideo_color = &pal_n_csc_svideo,
630
631 .filter_table = filter_table,
632 },
633 {
634 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
635 .name = "PAL",
636 .clock = 108000,
637 .refresh = 50000,
638 .oversample = TV_OVERSAMPLE_8X,
639 .component_only = 0,
640
641 .hsync_end = 64, .hblank_end = 142,
642 .hblank_start = 844, .htotal = 863,
643
644 .progressive = false, .trilevel_sync = false,
645
646 .vsync_start_f1 = 5, .vsync_start_f2 = 6,
647 .vsync_len = 5,
648
649 .veq_ena = true, .veq_start_f1 = 0,
650 .veq_start_f2 = 1, .veq_len = 15,
651
652 .vi_end_f1 = 24, .vi_end_f2 = 25,
653 .nbr_end = 286,
654
655 .burst_ena = true,
656 .hburst_start = 73, .hburst_len = 32,
657 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
658 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
659 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
660 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
661
662 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
663 .dda1_inc = 168,
664 .dda2_inc = 4122, .dda2_size = 27648,
665 .dda3_inc = 67, .dda3_size = 625,
666 .sc_reset = TV_SC_RESET_EVERY_8,
667 .pal_burst = true,
668
669 .composite_levels = &pal_levels_composite,
670 .composite_color = &pal_csc_composite,
671 .svideo_levels = &pal_levels_svideo,
672 .svideo_color = &pal_csc_svideo,
673
674 .filter_table = filter_table,
675 },
676 {
677 .name = "480p",
678 .clock = 107520,
679 .refresh = 59940,
680 .oversample = TV_OVERSAMPLE_4X,
681 .component_only = 1,
682
683 .hsync_end = 64, .hblank_end = 122,
684 .hblank_start = 842, .htotal = 857,
685
686 .progressive = true, .trilevel_sync = false,
687
688 .vsync_start_f1 = 12, .vsync_start_f2 = 12,
689 .vsync_len = 12,
690
691 .veq_ena = false,
692
693 .vi_end_f1 = 44, .vi_end_f2 = 44,
694 .nbr_end = 479,
695
696 .burst_ena = false,
697
698 .filter_table = filter_table,
699 },
700 {
701 .name = "576p",
702 .clock = 107520,
703 .refresh = 50000,
704 .oversample = TV_OVERSAMPLE_4X,
705 .component_only = 1,
706
707 .hsync_end = 64, .hblank_end = 139,
708 .hblank_start = 859, .htotal = 863,
709
710 .progressive = true, .trilevel_sync = false,
711
712 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
713 .vsync_len = 10,
714
715 .veq_ena = false,
716
717 .vi_end_f1 = 48, .vi_end_f2 = 48,
718 .nbr_end = 575,
719
720 .burst_ena = false,
721
722 .filter_table = filter_table,
723 },
724 {
725 .name = "720p@60Hz",
726 .clock = 148800,
727 .refresh = 60000,
728 .oversample = TV_OVERSAMPLE_2X,
729 .component_only = 1,
730
731 .hsync_end = 80, .hblank_end = 300,
732 .hblank_start = 1580, .htotal = 1649,
733
734 .progressive = true, .trilevel_sync = true,
735
736 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
737 .vsync_len = 10,
738
739 .veq_ena = false,
740
741 .vi_end_f1 = 29, .vi_end_f2 = 29,
742 .nbr_end = 719,
743
744 .burst_ena = false,
745
746 .filter_table = filter_table,
747 },
748 {
749 .name = "720p@50Hz",
750 .clock = 148800,
751 .refresh = 50000,
752 .oversample = TV_OVERSAMPLE_2X,
753 .component_only = 1,
754
755 .hsync_end = 80, .hblank_end = 300,
756 .hblank_start = 1580, .htotal = 1979,
757
758 .progressive = true, .trilevel_sync = true,
759
760 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
761 .vsync_len = 10,
762
763 .veq_ena = false,
764
765 .vi_end_f1 = 29, .vi_end_f2 = 29,
766 .nbr_end = 719,
767
768 .burst_ena = false,
769
770 .filter_table = filter_table,
771 .max_srcw = 800
772 },
773 {
774 .name = "1080i@50Hz",
775 .clock = 148800,
776 .refresh = 50000,
777 .oversample = TV_OVERSAMPLE_2X,
778 .component_only = 1,
779
780 .hsync_end = 88, .hblank_end = 235,
781 .hblank_start = 2155, .htotal = 2639,
782
783 .progressive = false, .trilevel_sync = true,
784
785 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
786 .vsync_len = 10,
787
788 .veq_ena = true, .veq_start_f1 = 4,
789 .veq_start_f2 = 4, .veq_len = 10,
790
791
792 .vi_end_f1 = 21, .vi_end_f2 = 22,
793 .nbr_end = 539,
794
795 .burst_ena = false,
796
797 .filter_table = filter_table,
798 },
799 {
800 .name = "1080i@60Hz",
801 .clock = 148800,
802 .refresh = 60000,
803 .oversample = TV_OVERSAMPLE_2X,
804 .component_only = 1,
805
806 .hsync_end = 88, .hblank_end = 235,
807 .hblank_start = 2155, .htotal = 2199,
808
809 .progressive = false, .trilevel_sync = true,
810
811 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
812 .vsync_len = 10,
813
814 .veq_ena = true, .veq_start_f1 = 4,
815 .veq_start_f2 = 4, .veq_len = 10,
816
817
818 .vi_end_f1 = 21, .vi_end_f2 = 22,
819 .nbr_end = 539,
820
821 .burst_ena = false,
822
823 .filter_table = filter_table,
824 },
825};
826
827static struct intel_tv *enc_to_tv(struct intel_encoder *encoder)
828{
829 return container_of(encoder, struct intel_tv, base);
830}
831
832static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
833{
834 return enc_to_tv(intel_attached_encoder(connector));
835}
836
837static bool
838intel_tv_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe)
839{
840 struct drm_device *dev = encoder->base.dev;
841 struct drm_i915_private *dev_priv = dev->dev_private;
842 u32 tmp = I915_READ(TV_CTL);
843
844 if (!(tmp & TV_ENC_ENABLE))
845 return false;
846
847 *pipe = PORT_TO_PIPE(tmp);
848
849 return true;
850}
851
852static void
853intel_enable_tv(struct intel_encoder *encoder)
854{
855 struct drm_device *dev = encoder->base.dev;
856 struct drm_i915_private *dev_priv = dev->dev_private;
857
858 /* Prevents vblank waits from timing out in intel_tv_detect_type() */
859 intel_wait_for_vblank(encoder->base.dev,
860 to_intel_crtc(encoder->base.crtc)->pipe);
861
862 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
863}
864
865static void
866intel_disable_tv(struct intel_encoder *encoder)
867{
868 struct drm_device *dev = encoder->base.dev;
869 struct drm_i915_private *dev_priv = dev->dev_private;
870
871 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
872}
873
874static const struct tv_mode *
875intel_tv_mode_lookup(const char *tv_format)
876{
877 int i;
878
879 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
880 const struct tv_mode *tv_mode = &tv_modes[i];
881
882 if (!strcmp(tv_format, tv_mode->name))
883 return tv_mode;
884 }
885 return NULL;
886}
887
888static const struct tv_mode *
889intel_tv_mode_find(struct intel_tv *intel_tv)
890{
891 return intel_tv_mode_lookup(intel_tv->tv_format);
892}
893
894static enum drm_mode_status
895intel_tv_mode_valid(struct drm_connector *connector,
896 struct drm_display_mode *mode)
897{
898 struct intel_tv *intel_tv = intel_attached_tv(connector);
899 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
900 int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
901
902 if (mode->clock > max_dotclk)
903 return MODE_CLOCK_HIGH;
904
905 /* Ensure TV refresh is close to desired refresh */
906 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
907 < 1000)
908 return MODE_OK;
909
910 return MODE_CLOCK_RANGE;
911}
912
913
914static void
915intel_tv_get_config(struct intel_encoder *encoder,
916 struct intel_crtc_state *pipe_config)
917{
918 pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
919}
920
921static bool
922intel_tv_compute_config(struct intel_encoder *encoder,
923 struct intel_crtc_state *pipe_config)
924{
925 struct intel_tv *intel_tv = enc_to_tv(encoder);
926 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
927
928 if (!tv_mode)
929 return false;
930
931 pipe_config->base.adjusted_mode.crtc_clock = tv_mode->clock;
932 DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
933 pipe_config->pipe_bpp = 8*3;
934
935 /* TV has it's own notion of sync and other mode flags, so clear them. */
936 pipe_config->base.adjusted_mode.flags = 0;
937
938 /*
939 * FIXME: We don't check whether the input mode is actually what we want
940 * or whether userspace is doing something stupid.
941 */
942
943 return true;
944}
945
946static void
947set_tv_mode_timings(struct drm_i915_private *dev_priv,
948 const struct tv_mode *tv_mode,
949 bool burst_ena)
950{
951 u32 hctl1, hctl2, hctl3;
952 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
953
954 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
955 (tv_mode->htotal << TV_HTOTAL_SHIFT);
956
957 hctl2 = (tv_mode->hburst_start << 16) |
958 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
959
960 if (burst_ena)
961 hctl2 |= TV_BURST_ENA;
962
963 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
964 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
965
966 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
967 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
968 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
969
970 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
971 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
972 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
973
974 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
975 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
976 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
977
978 if (tv_mode->veq_ena)
979 vctl3 |= TV_EQUAL_ENA;
980
981 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
982 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
983
984 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
985 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
986
987 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
988 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
989
990 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
991 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
992
993 I915_WRITE(TV_H_CTL_1, hctl1);
994 I915_WRITE(TV_H_CTL_2, hctl2);
995 I915_WRITE(TV_H_CTL_3, hctl3);
996 I915_WRITE(TV_V_CTL_1, vctl1);
997 I915_WRITE(TV_V_CTL_2, vctl2);
998 I915_WRITE(TV_V_CTL_3, vctl3);
999 I915_WRITE(TV_V_CTL_4, vctl4);
1000 I915_WRITE(TV_V_CTL_5, vctl5);
1001 I915_WRITE(TV_V_CTL_6, vctl6);
1002 I915_WRITE(TV_V_CTL_7, vctl7);
1003}
1004
1005static void set_color_conversion(struct drm_i915_private *dev_priv,
1006 const struct color_conversion *color_conversion)
1007{
1008 if (!color_conversion)
1009 return;
1010
1011 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1012 color_conversion->gy);
1013 I915_WRITE(TV_CSC_Y2, (color_conversion->by << 16) |
1014 color_conversion->ay);
1015 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1016 color_conversion->gu);
1017 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1018 color_conversion->au);
1019 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1020 color_conversion->gv);
1021 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1022 color_conversion->av);
1023}
1024
1025static void intel_tv_pre_enable(struct intel_encoder *encoder)
1026{
1027 struct drm_device *dev = encoder->base.dev;
1028 struct drm_i915_private *dev_priv = dev->dev_private;
1029 struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1030 struct intel_tv *intel_tv = enc_to_tv(encoder);
1031 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1032 u32 tv_ctl;
1033 u32 scctl1, scctl2, scctl3;
1034 int i, j;
1035 const struct video_levels *video_levels;
1036 const struct color_conversion *color_conversion;
1037 bool burst_ena;
1038 int xpos = 0x0, ypos = 0x0;
1039 unsigned int xsize, ysize;
1040
1041 if (!tv_mode)
1042 return; /* can't happen (mode_prepare prevents this) */
1043
1044 tv_ctl = I915_READ(TV_CTL);
1045 tv_ctl &= TV_CTL_SAVE;
1046
1047 switch (intel_tv->type) {
1048 default:
1049 case DRM_MODE_CONNECTOR_Unknown:
1050 case DRM_MODE_CONNECTOR_Composite:
1051 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1052 video_levels = tv_mode->composite_levels;
1053 color_conversion = tv_mode->composite_color;
1054 burst_ena = tv_mode->burst_ena;
1055 break;
1056 case DRM_MODE_CONNECTOR_Component:
1057 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1058 video_levels = &component_levels;
1059 if (tv_mode->burst_ena)
1060 color_conversion = &sdtv_csc_yprpb;
1061 else
1062 color_conversion = &hdtv_csc_yprpb;
1063 burst_ena = false;
1064 break;
1065 case DRM_MODE_CONNECTOR_SVIDEO:
1066 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1067 video_levels = tv_mode->svideo_levels;
1068 color_conversion = tv_mode->svideo_color;
1069 burst_ena = tv_mode->burst_ena;
1070 break;
1071 }
1072
1073 if (intel_crtc->pipe == 1)
1074 tv_ctl |= TV_ENC_PIPEB_SELECT;
1075 tv_ctl |= tv_mode->oversample;
1076
1077 if (tv_mode->progressive)
1078 tv_ctl |= TV_PROGRESSIVE;
1079 if (tv_mode->trilevel_sync)
1080 tv_ctl |= TV_TRILEVEL_SYNC;
1081 if (tv_mode->pal_burst)
1082 tv_ctl |= TV_PAL_BURST;
1083
1084 scctl1 = 0;
1085 if (tv_mode->dda1_inc)
1086 scctl1 |= TV_SC_DDA1_EN;
1087 if (tv_mode->dda2_inc)
1088 scctl1 |= TV_SC_DDA2_EN;
1089 if (tv_mode->dda3_inc)
1090 scctl1 |= TV_SC_DDA3_EN;
1091 scctl1 |= tv_mode->sc_reset;
1092 if (video_levels)
1093 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1094 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1095
1096 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1097 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1098
1099 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1100 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1101
1102 /* Enable two fixes for the chips that need them. */
1103 if (IS_I915GM(dev))
1104 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1105
1106 set_tv_mode_timings(dev_priv, tv_mode, burst_ena);
1107
1108 I915_WRITE(TV_SC_CTL_1, scctl1);
1109 I915_WRITE(TV_SC_CTL_2, scctl2);
1110 I915_WRITE(TV_SC_CTL_3, scctl3);
1111
1112 set_color_conversion(dev_priv, color_conversion);
1113
1114 if (INTEL_INFO(dev)->gen >= 4)
1115 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1116 else
1117 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1118
1119 if (video_levels)
1120 I915_WRITE(TV_CLR_LEVEL,
1121 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1122 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1123
1124 assert_pipe_disabled(dev_priv, intel_crtc->pipe);
1125
1126 /* Filter ctl must be set before TV_WIN_SIZE */
1127 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1128 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1129 if (tv_mode->progressive)
1130 ysize = tv_mode->nbr_end + 1;
1131 else
1132 ysize = 2*tv_mode->nbr_end + 1;
1133
1134 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1135 ypos += intel_tv->margin[TV_MARGIN_TOP];
1136 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1137 intel_tv->margin[TV_MARGIN_RIGHT]);
1138 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1139 intel_tv->margin[TV_MARGIN_BOTTOM]);
1140 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1141 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1142
1143 j = 0;
1144 for (i = 0; i < 60; i++)
1145 I915_WRITE(TV_H_LUMA(i), tv_mode->filter_table[j++]);
1146 for (i = 0; i < 60; i++)
1147 I915_WRITE(TV_H_CHROMA(i), tv_mode->filter_table[j++]);
1148 for (i = 0; i < 43; i++)
1149 I915_WRITE(TV_V_LUMA(i), tv_mode->filter_table[j++]);
1150 for (i = 0; i < 43; i++)
1151 I915_WRITE(TV_V_CHROMA(i), tv_mode->filter_table[j++]);
1152 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1153 I915_WRITE(TV_CTL, tv_ctl);
1154}
1155
1156static const struct drm_display_mode reported_modes[] = {
1157 {
1158 .name = "NTSC 480i",
1159 .clock = 107520,
1160 .hdisplay = 1280,
1161 .hsync_start = 1368,
1162 .hsync_end = 1496,
1163 .htotal = 1712,
1164
1165 .vdisplay = 1024,
1166 .vsync_start = 1027,
1167 .vsync_end = 1034,
1168 .vtotal = 1104,
1169 .type = DRM_MODE_TYPE_DRIVER,
1170 },
1171};
1172
1173/**
1174 * Detects TV presence by checking for load.
1175 *
1176 * Requires that the current pipe's DPLL is active.
1177
1178 * \return true if TV is connected.
1179 * \return false if TV is disconnected.
1180 */
1181static int
1182intel_tv_detect_type(struct intel_tv *intel_tv,
1183 struct drm_connector *connector)
1184{
1185 struct drm_crtc *crtc = connector->state->crtc;
1186 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1187 struct drm_device *dev = connector->dev;
1188 struct drm_i915_private *dev_priv = dev->dev_private;
1189 u32 tv_ctl, save_tv_ctl;
1190 u32 tv_dac, save_tv_dac;
1191 int type;
1192
1193 /* Disable TV interrupts around load detect or we'll recurse */
1194 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1195 spin_lock_irq(&dev_priv->irq_lock);
1196 i915_disable_pipestat(dev_priv, 0,
1197 PIPE_HOTPLUG_INTERRUPT_STATUS |
1198 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1199 spin_unlock_irq(&dev_priv->irq_lock);
1200 }
1201
1202 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1203 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1204
1205 /* Poll for TV detection */
1206 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1207 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1208 if (intel_crtc->pipe == 1)
1209 tv_ctl |= TV_ENC_PIPEB_SELECT;
1210 else
1211 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1212
1213 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1214 tv_dac |= (TVDAC_STATE_CHG_EN |
1215 TVDAC_A_SENSE_CTL |
1216 TVDAC_B_SENSE_CTL |
1217 TVDAC_C_SENSE_CTL |
1218 DAC_CTL_OVERRIDE |
1219 DAC_A_0_7_V |
1220 DAC_B_0_7_V |
1221 DAC_C_0_7_V);
1222
1223
1224 /*
1225 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1226 * the TV is misdetected. This is hardware requirement.
1227 */
1228 if (IS_GM45(dev))
1229 tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1230 TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1231
1232 I915_WRITE(TV_CTL, tv_ctl);
1233 I915_WRITE(TV_DAC, tv_dac);
1234 POSTING_READ(TV_DAC);
1235
1236 intel_wait_for_vblank(dev, intel_crtc->pipe);
1237
1238 type = -1;
1239 tv_dac = I915_READ(TV_DAC);
1240 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1241 /*
1242 * A B C
1243 * 0 1 1 Composite
1244 * 1 0 X svideo
1245 * 0 0 0 Component
1246 */
1247 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1248 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1249 type = DRM_MODE_CONNECTOR_Composite;
1250 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1251 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1252 type = DRM_MODE_CONNECTOR_SVIDEO;
1253 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1254 DRM_DEBUG_KMS("Detected Component TV connection\n");
1255 type = DRM_MODE_CONNECTOR_Component;
1256 } else {
1257 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1258 type = -1;
1259 }
1260
1261 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1262 I915_WRITE(TV_CTL, save_tv_ctl);
1263 POSTING_READ(TV_CTL);
1264
1265 /* For unknown reasons the hw barfs if we don't do this vblank wait. */
1266 intel_wait_for_vblank(dev, intel_crtc->pipe);
1267
1268 /* Restore interrupt config */
1269 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1270 spin_lock_irq(&dev_priv->irq_lock);
1271 i915_enable_pipestat(dev_priv, 0,
1272 PIPE_HOTPLUG_INTERRUPT_STATUS |
1273 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1274 spin_unlock_irq(&dev_priv->irq_lock);
1275 }
1276
1277 return type;
1278}
1279
1280/*
1281 * Here we set accurate tv format according to connector type
1282 * i.e Component TV should not be assigned by NTSC or PAL
1283 */
1284static void intel_tv_find_better_format(struct drm_connector *connector)
1285{
1286 struct intel_tv *intel_tv = intel_attached_tv(connector);
1287 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1288 int i;
1289
1290 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1291 tv_mode->component_only)
1292 return;
1293
1294
1295 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
1296 tv_mode = tv_modes + i;
1297
1298 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1299 tv_mode->component_only)
1300 break;
1301 }
1302
1303 intel_tv->tv_format = tv_mode->name;
1304 drm_object_property_set_value(&connector->base,
1305 connector->dev->mode_config.tv_mode_property, i);
1306}
1307
1308/**
1309 * Detect the TV connection.
1310 *
1311 * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1312 * we have a pipe programmed in order to probe the TV.
1313 */
1314static enum drm_connector_status
1315intel_tv_detect(struct drm_connector *connector, bool force)
1316{
1317 struct drm_display_mode mode;
1318 struct intel_tv *intel_tv = intel_attached_tv(connector);
1319 enum drm_connector_status status;
1320 int type;
1321
1322 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
1323 connector->base.id, connector->name,
1324 force);
1325
1326 mode = reported_modes[0];
1327
1328 if (force) {
1329 struct intel_load_detect_pipe tmp;
1330 struct drm_modeset_acquire_ctx ctx;
1331
1332 drm_modeset_acquire_init(&ctx, 0);
1333
1334 if (intel_get_load_detect_pipe(connector, &mode, &tmp, &ctx)) {
1335 type = intel_tv_detect_type(intel_tv, connector);
1336 intel_release_load_detect_pipe(connector, &tmp, &ctx);
1337 status = type < 0 ?
1338 connector_status_disconnected :
1339 connector_status_connected;
1340 } else
1341 status = connector_status_unknown;
1342
1343 drm_modeset_drop_locks(&ctx);
1344 drm_modeset_acquire_fini(&ctx);
1345 } else
1346 return connector->status;
1347
1348 if (status != connector_status_connected)
1349 return status;
1350
1351 intel_tv->type = type;
1352 intel_tv_find_better_format(connector);
1353
1354 return connector_status_connected;
1355}
1356
1357static const struct input_res {
1358 const char *name;
1359 int w, h;
1360} input_res_table[] = {
1361 {"640x480", 640, 480},
1362 {"800x600", 800, 600},
1363 {"1024x768", 1024, 768},
1364 {"1280x1024", 1280, 1024},
1365 {"848x480", 848, 480},
1366 {"1280x720", 1280, 720},
1367 {"1920x1080", 1920, 1080},
1368};
1369
1370/*
1371 * Chose preferred mode according to line number of TV format
1372 */
1373static void
1374intel_tv_chose_preferred_modes(struct drm_connector *connector,
1375 struct drm_display_mode *mode_ptr)
1376{
1377 struct intel_tv *intel_tv = intel_attached_tv(connector);
1378 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1379
1380 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1381 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1382 else if (tv_mode->nbr_end > 480) {
1383 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1384 if (mode_ptr->vdisplay == 720)
1385 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1386 } else if (mode_ptr->vdisplay == 1080)
1387 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1388 }
1389}
1390
1391/**
1392 * Stub get_modes function.
1393 *
1394 * This should probably return a set of fixed modes, unless we can figure out
1395 * how to probe modes off of TV connections.
1396 */
1397
1398static int
1399intel_tv_get_modes(struct drm_connector *connector)
1400{
1401 struct drm_display_mode *mode_ptr;
1402 struct intel_tv *intel_tv = intel_attached_tv(connector);
1403 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1404 int j, count = 0;
1405 u64 tmp;
1406
1407 for (j = 0; j < ARRAY_SIZE(input_res_table);
1408 j++) {
1409 const struct input_res *input = &input_res_table[j];
1410 unsigned int hactive_s = input->w;
1411 unsigned int vactive_s = input->h;
1412
1413 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1414 continue;
1415
1416 if (input->w > 1024 && (!tv_mode->progressive
1417 && !tv_mode->component_only))
1418 continue;
1419
1420 mode_ptr = drm_mode_create(connector->dev);
1421 if (!mode_ptr)
1422 continue;
1423 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1424 mode_ptr->name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
1425
1426 mode_ptr->hdisplay = hactive_s;
1427 mode_ptr->hsync_start = hactive_s + 1;
1428 mode_ptr->hsync_end = hactive_s + 64;
1429 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1430 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1431 mode_ptr->htotal = hactive_s + 96;
1432
1433 mode_ptr->vdisplay = vactive_s;
1434 mode_ptr->vsync_start = vactive_s + 1;
1435 mode_ptr->vsync_end = vactive_s + 32;
1436 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1437 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1438 mode_ptr->vtotal = vactive_s + 33;
1439
1440 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1441 tmp *= mode_ptr->htotal;
1442 tmp = div_u64(tmp, 1000000);
1443 mode_ptr->clock = (int) tmp;
1444
1445 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1446 intel_tv_chose_preferred_modes(connector, mode_ptr);
1447 drm_mode_probed_add(connector, mode_ptr);
1448 count++;
1449 }
1450
1451 return count;
1452}
1453
1454static void
1455intel_tv_destroy(struct drm_connector *connector)
1456{
1457 drm_connector_cleanup(connector);
1458 kfree(connector);
1459}
1460
1461
1462static int
1463intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1464 uint64_t val)
1465{
1466 struct drm_device *dev = connector->dev;
1467 struct intel_tv *intel_tv = intel_attached_tv(connector);
1468 struct drm_crtc *crtc = intel_tv->base.base.crtc;
1469 int ret = 0;
1470 bool changed = false;
1471
1472 ret = drm_object_property_set_value(&connector->base, property, val);
1473 if (ret < 0)
1474 goto out;
1475
1476 if (property == dev->mode_config.tv_left_margin_property &&
1477 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1478 intel_tv->margin[TV_MARGIN_LEFT] = val;
1479 changed = true;
1480 } else if (property == dev->mode_config.tv_right_margin_property &&
1481 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1482 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1483 changed = true;
1484 } else if (property == dev->mode_config.tv_top_margin_property &&
1485 intel_tv->margin[TV_MARGIN_TOP] != val) {
1486 intel_tv->margin[TV_MARGIN_TOP] = val;
1487 changed = true;
1488 } else if (property == dev->mode_config.tv_bottom_margin_property &&
1489 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1490 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1491 changed = true;
1492 } else if (property == dev->mode_config.tv_mode_property) {
1493 if (val >= ARRAY_SIZE(tv_modes)) {
1494 ret = -EINVAL;
1495 goto out;
1496 }
1497 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1498 goto out;
1499
1500 intel_tv->tv_format = tv_modes[val].name;
1501 changed = true;
1502 } else {
1503 ret = -EINVAL;
1504 goto out;
1505 }
1506
1507 if (changed && crtc)
1508 intel_crtc_restore_mode(crtc);
1509out:
1510 return ret;
1511}
1512
1513static const struct drm_connector_funcs intel_tv_connector_funcs = {
1514 .dpms = drm_atomic_helper_connector_dpms,
1515 .detect = intel_tv_detect,
1516 .destroy = intel_tv_destroy,
1517 .set_property = intel_tv_set_property,
1518 .atomic_get_property = intel_connector_atomic_get_property,
1519 .fill_modes = drm_helper_probe_single_connector_modes,
1520 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1521 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1522};
1523
1524static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1525 .mode_valid = intel_tv_mode_valid,
1526 .get_modes = intel_tv_get_modes,
1527 .best_encoder = intel_best_encoder,
1528};
1529
1530static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1531 .destroy = intel_encoder_destroy,
1532};
1533
1534/*
1535 * Enumerate the child dev array parsed from VBT to check whether
1536 * the integrated TV is present.
1537 * If it is present, return 1.
1538 * If it is not present, return false.
1539 * If no child dev is parsed from VBT, it assumes that the TV is present.
1540 */
1541static int tv_is_present_in_vbt(struct drm_device *dev)
1542{
1543 struct drm_i915_private *dev_priv = dev->dev_private;
1544 union child_device_config *p_child;
1545 int i, ret;
1546
1547 if (!dev_priv->vbt.child_dev_num)
1548 return 1;
1549
1550 ret = 0;
1551 for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
1552 p_child = dev_priv->vbt.child_dev + i;
1553 /*
1554 * If the device type is not TV, continue.
1555 */
1556 switch (p_child->old.device_type) {
1557 case DEVICE_TYPE_INT_TV:
1558 case DEVICE_TYPE_TV:
1559 case DEVICE_TYPE_TV_SVIDEO_COMPOSITE:
1560 break;
1561 default:
1562 continue;
1563 }
1564 /* Only when the addin_offset is non-zero, it is regarded
1565 * as present.
1566 */
1567 if (p_child->old.addin_offset) {
1568 ret = 1;
1569 break;
1570 }
1571 }
1572 return ret;
1573}
1574
1575void
1576intel_tv_init(struct drm_device *dev)
1577{
1578 struct drm_i915_private *dev_priv = dev->dev_private;
1579 struct drm_connector *connector;
1580 struct intel_tv *intel_tv;
1581 struct intel_encoder *intel_encoder;
1582 struct intel_connector *intel_connector;
1583 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1584 const char *tv_format_names[ARRAY_SIZE(tv_modes)];
1585 int i, initial_mode = 0;
1586
1587 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1588 return;
1589
1590 if (!tv_is_present_in_vbt(dev)) {
1591 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1592 return;
1593 }
1594 /* Even if we have an encoder we may not have a connector */
1595 if (!dev_priv->vbt.int_tv_support)
1596 return;
1597
1598 /*
1599 * Sanity check the TV output by checking to see if the
1600 * DAC register holds a value
1601 */
1602 save_tv_dac = I915_READ(TV_DAC);
1603
1604 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1605 tv_dac_on = I915_READ(TV_DAC);
1606
1607 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1608 tv_dac_off = I915_READ(TV_DAC);
1609
1610 I915_WRITE(TV_DAC, save_tv_dac);
1611
1612 /*
1613 * If the register does not hold the state change enable
1614 * bit, (either as a 0 or a 1), assume it doesn't really
1615 * exist
1616 */
1617 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1618 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1619 return;
1620
1621 intel_tv = kzalloc(sizeof(*intel_tv), GFP_KERNEL);
1622 if (!intel_tv) {
1623 return;
1624 }
1625
1626 intel_connector = intel_connector_alloc();
1627 if (!intel_connector) {
1628 kfree(intel_tv);
1629 return;
1630 }
1631
1632 intel_encoder = &intel_tv->base;
1633 connector = &intel_connector->base;
1634
1635 /* The documentation, for the older chipsets at least, recommend
1636 * using a polling method rather than hotplug detection for TVs.
1637 * This is because in order to perform the hotplug detection, the PLLs
1638 * for the TV must be kept alive increasing power drain and starving
1639 * bandwidth from other encoders. Notably for instance, it causes
1640 * pipe underruns on Crestline when this encoder is supposedly idle.
1641 *
1642 * More recent chipsets favour HDMI rather than integrated S-Video.
1643 */
1644 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1645
1646 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1647 DRM_MODE_CONNECTOR_SVIDEO);
1648
1649 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1650 DRM_MODE_ENCODER_TVDAC, NULL);
1651
1652 intel_encoder->compute_config = intel_tv_compute_config;
1653 intel_encoder->get_config = intel_tv_get_config;
1654 intel_encoder->pre_enable = intel_tv_pre_enable;
1655 intel_encoder->enable = intel_enable_tv;
1656 intel_encoder->disable = intel_disable_tv;
1657 intel_encoder->get_hw_state = intel_tv_get_hw_state;
1658 intel_connector->get_hw_state = intel_connector_get_hw_state;
1659 intel_connector->unregister = intel_connector_unregister;
1660
1661 intel_connector_attach_encoder(intel_connector, intel_encoder);
1662 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1663 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1664 intel_encoder->cloneable = 0;
1665 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1666 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1667
1668 /* BIOS margin values */
1669 intel_tv->margin[TV_MARGIN_LEFT] = 54;
1670 intel_tv->margin[TV_MARGIN_TOP] = 36;
1671 intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1672 intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1673
1674 intel_tv->tv_format = tv_modes[initial_mode].name;
1675
1676 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1677 connector->interlace_allowed = false;
1678 connector->doublescan_allowed = false;
1679
1680 /* Create TV properties then attach current values */
1681 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1682 tv_format_names[i] = tv_modes[i].name;
1683 drm_mode_create_tv_properties(dev,
1684 ARRAY_SIZE(tv_modes),
1685 tv_format_names);
1686
1687 drm_object_attach_property(&connector->base, dev->mode_config.tv_mode_property,
1688 initial_mode);
1689 drm_object_attach_property(&connector->base,
1690 dev->mode_config.tv_left_margin_property,
1691 intel_tv->margin[TV_MARGIN_LEFT]);
1692 drm_object_attach_property(&connector->base,
1693 dev->mode_config.tv_top_margin_property,
1694 intel_tv->margin[TV_MARGIN_TOP]);
1695 drm_object_attach_property(&connector->base,
1696 dev->mode_config.tv_right_margin_property,
1697 intel_tv->margin[TV_MARGIN_RIGHT]);
1698 drm_object_attach_property(&connector->base,
1699 dev->mode_config.tv_bottom_margin_property,
1700 intel_tv->margin[TV_MARGIN_BOTTOM]);
1701 drm_connector_register(connector);
1702}
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_atomic_helper.h>
35#include <drm/drm_crtc.h>
36#include <drm/drm_edid.h>
37#include "intel_drv.h"
38#include <drm/i915_drm.h>
39#include "i915_drv.h"
40
41enum tv_margin {
42 TV_MARGIN_LEFT, TV_MARGIN_TOP,
43 TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
44};
45
46struct intel_tv {
47 struct intel_encoder base;
48
49 int type;
50};
51
52struct video_levels {
53 u16 blank, black;
54 u8 burst;
55};
56
57struct color_conversion {
58 u16 ry, gy, by, ay;
59 u16 ru, gu, bu, au;
60 u16 rv, gv, bv, av;
61};
62
63static const u32 filter_table[] = {
64 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
65 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
66 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
67 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
68 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
69 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
70 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
71 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
72 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
73 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
74 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
75 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
76 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
77 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
78 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
79 0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
80 0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
81 0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
82 0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
83 0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
84 0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
85 0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
86 0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
87 0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
88 0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
89 0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
90 0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
91 0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
92 0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
93 0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
94 0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
95 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
96 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
97 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
98 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
99 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
100 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
101 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
102 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
103 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
104 0x28003100, 0x28002F00, 0x00003100, 0x36403000,
105 0x2D002CC0, 0x30003640, 0x2D0036C0,
106 0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
107 0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
108 0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
109 0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
110 0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
111 0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
112 0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
113 0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
114 0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
115 0x28003100, 0x28002F00, 0x00003100,
116};
117
118/*
119 * Color conversion values have 3 separate fixed point formats:
120 *
121 * 10 bit fields (ay, au)
122 * 1.9 fixed point (b.bbbbbbbbb)
123 * 11 bit fields (ry, by, ru, gu, gv)
124 * exp.mantissa (ee.mmmmmmmmm)
125 * ee = 00 = 10^-1 (0.mmmmmmmmm)
126 * ee = 01 = 10^-2 (0.0mmmmmmmmm)
127 * ee = 10 = 10^-3 (0.00mmmmmmmmm)
128 * ee = 11 = 10^-4 (0.000mmmmmmmmm)
129 * 12 bit fields (gy, rv, bu)
130 * exp.mantissa (eee.mmmmmmmmm)
131 * eee = 000 = 10^-1 (0.mmmmmmmmm)
132 * eee = 001 = 10^-2 (0.0mmmmmmmmm)
133 * eee = 010 = 10^-3 (0.00mmmmmmmmm)
134 * eee = 011 = 10^-4 (0.000mmmmmmmmm)
135 * eee = 100 = reserved
136 * eee = 101 = reserved
137 * eee = 110 = reserved
138 * eee = 111 = 10^0 (m.mmmmmmmm) (only usable for 1.0 representation)
139 *
140 * Saturation and contrast are 8 bits, with their own representation:
141 * 8 bit field (saturation, contrast)
142 * exp.mantissa (ee.mmmmmm)
143 * ee = 00 = 10^-1 (0.mmmmmm)
144 * ee = 01 = 10^0 (m.mmmmm)
145 * ee = 10 = 10^1 (mm.mmmm)
146 * ee = 11 = 10^2 (mmm.mmm)
147 *
148 * Simple conversion function:
149 *
150 * static u32
151 * float_to_csc_11(float f)
152 * {
153 * u32 exp;
154 * u32 mant;
155 * u32 ret;
156 *
157 * if (f < 0)
158 * f = -f;
159 *
160 * if (f >= 1) {
161 * exp = 0x7;
162 * mant = 1 << 8;
163 * } else {
164 * for (exp = 0; exp < 3 && f < 0.5; exp++)
165 * f *= 2.0;
166 * mant = (f * (1 << 9) + 0.5);
167 * if (mant >= (1 << 9))
168 * mant = (1 << 9) - 1;
169 * }
170 * ret = (exp << 9) | mant;
171 * return ret;
172 * }
173 */
174
175/*
176 * Behold, magic numbers! If we plant them they might grow a big
177 * s-video cable to the sky... or something.
178 *
179 * Pre-converted to appropriate hex value.
180 */
181
182/*
183 * PAL & NTSC values for composite & s-video connections
184 */
185static const struct color_conversion ntsc_m_csc_composite = {
186 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
187 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
188 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
189};
190
191static const struct video_levels ntsc_m_levels_composite = {
192 .blank = 225, .black = 267, .burst = 113,
193};
194
195static const struct color_conversion ntsc_m_csc_svideo = {
196 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
197 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
198 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
199};
200
201static const struct video_levels ntsc_m_levels_svideo = {
202 .blank = 266, .black = 316, .burst = 133,
203};
204
205static const struct color_conversion ntsc_j_csc_composite = {
206 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0119,
207 .ru = 0x074c, .gu = 0x0546, .bu = 0x05ec, .au = 0x0200,
208 .rv = 0x035a, .gv = 0x0322, .bv = 0x06e1, .av = 0x0200,
209};
210
211static const struct video_levels ntsc_j_levels_composite = {
212 .blank = 225, .black = 225, .burst = 113,
213};
214
215static const struct color_conversion ntsc_j_csc_svideo = {
216 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x014c,
217 .ru = 0x0788, .gu = 0x0581, .bu = 0x0322, .au = 0x0200,
218 .rv = 0x0399, .gv = 0x0356, .bv = 0x070a, .av = 0x0200,
219};
220
221static const struct video_levels ntsc_j_levels_svideo = {
222 .blank = 266, .black = 266, .burst = 133,
223};
224
225static const struct color_conversion pal_csc_composite = {
226 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0113,
227 .ru = 0x0745, .gu = 0x053f, .bu = 0x05e1, .au = 0x0200,
228 .rv = 0x0353, .gv = 0x031c, .bv = 0x06dc, .av = 0x0200,
229};
230
231static const struct video_levels pal_levels_composite = {
232 .blank = 237, .black = 237, .burst = 118,
233};
234
235static const struct color_conversion pal_csc_svideo = {
236 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
237 .ru = 0x0780, .gu = 0x0579, .bu = 0x031c, .au = 0x0200,
238 .rv = 0x0390, .gv = 0x034f, .bv = 0x0705, .av = 0x0200,
239};
240
241static const struct video_levels pal_levels_svideo = {
242 .blank = 280, .black = 280, .burst = 139,
243};
244
245static const struct color_conversion pal_m_csc_composite = {
246 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
247 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
248 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
249};
250
251static const struct video_levels pal_m_levels_composite = {
252 .blank = 225, .black = 267, .burst = 113,
253};
254
255static const struct color_conversion pal_m_csc_svideo = {
256 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
257 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
258 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
259};
260
261static const struct video_levels pal_m_levels_svideo = {
262 .blank = 266, .black = 316, .burst = 133,
263};
264
265static const struct color_conversion pal_n_csc_composite = {
266 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0104,
267 .ru = 0x0733, .gu = 0x052d, .bu = 0x05c7, .au = 0x0200,
268 .rv = 0x0340, .gv = 0x030c, .bv = 0x06d0, .av = 0x0200,
269};
270
271static const struct video_levels pal_n_levels_composite = {
272 .blank = 225, .black = 267, .burst = 118,
273};
274
275static const struct color_conversion pal_n_csc_svideo = {
276 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0133,
277 .ru = 0x076a, .gu = 0x0564, .bu = 0x030d, .au = 0x0200,
278 .rv = 0x037a, .gv = 0x033d, .bv = 0x06f6, .av = 0x0200,
279};
280
281static const struct video_levels pal_n_levels_svideo = {
282 .blank = 266, .black = 316, .burst = 139,
283};
284
285/*
286 * Component connections
287 */
288static const struct color_conversion sdtv_csc_yprpb = {
289 .ry = 0x0332, .gy = 0x012d, .by = 0x07d3, .ay = 0x0145,
290 .ru = 0x0559, .gu = 0x0353, .bu = 0x0100, .au = 0x0200,
291 .rv = 0x0100, .gv = 0x03ad, .bv = 0x074d, .av = 0x0200,
292};
293
294static const struct color_conversion hdtv_csc_yprpb = {
295 .ry = 0x05b3, .gy = 0x016e, .by = 0x0728, .ay = 0x0145,
296 .ru = 0x07d5, .gu = 0x038b, .bu = 0x0100, .au = 0x0200,
297 .rv = 0x0100, .gv = 0x03d1, .bv = 0x06bc, .av = 0x0200,
298};
299
300static const struct video_levels component_levels = {
301 .blank = 279, .black = 279, .burst = 0,
302};
303
304
305struct tv_mode {
306 const char *name;
307
308 u32 clock;
309 u16 refresh; /* in millihertz (for precision) */
310 u32 oversample;
311 u8 hsync_end;
312 u16 hblank_start, hblank_end, htotal;
313 bool progressive : 1, trilevel_sync : 1, component_only : 1;
314 u8 vsync_start_f1, vsync_start_f2, vsync_len;
315 bool veq_ena : 1;
316 u8 veq_start_f1, veq_start_f2, veq_len;
317 u8 vi_end_f1, vi_end_f2;
318 u16 nbr_end;
319 bool burst_ena : 1;
320 u8 hburst_start, hburst_len;
321 u8 vburst_start_f1;
322 u16 vburst_end_f1;
323 u8 vburst_start_f2;
324 u16 vburst_end_f2;
325 u8 vburst_start_f3;
326 u16 vburst_end_f3;
327 u8 vburst_start_f4;
328 u16 vburst_end_f4;
329 /*
330 * subcarrier programming
331 */
332 u16 dda2_size, dda3_size;
333 u8 dda1_inc;
334 u16 dda2_inc, dda3_inc;
335 u32 sc_reset;
336 bool pal_burst : 1;
337 /*
338 * blank/black levels
339 */
340 const struct video_levels *composite_levels, *svideo_levels;
341 const struct color_conversion *composite_color, *svideo_color;
342 const u32 *filter_table;
343 u16 max_srcw;
344};
345
346
347/*
348 * Sub carrier DDA
349 *
350 * I think this works as follows:
351 *
352 * subcarrier freq = pixel_clock * (dda1_inc + dda2_inc / dda2_size) / 4096
353 *
354 * Presumably, when dda3 is added in, it gets to adjust the dda2_inc value
355 *
356 * So,
357 * dda1_ideal = subcarrier/pixel * 4096
358 * dda1_inc = floor (dda1_ideal)
359 * dda2 = dda1_ideal - dda1_inc
360 *
361 * then pick a ratio for dda2 that gives the closest approximation. If
362 * you can't get close enough, you can play with dda3 as well. This
363 * seems likely to happen when dda2 is small as the jumps would be larger
364 *
365 * To invert this,
366 *
367 * pixel_clock = subcarrier * 4096 / (dda1_inc + dda2_inc / dda2_size)
368 *
369 * The constants below were all computed using a 107.520MHz clock
370 */
371
372/*
373 * Register programming values for TV modes.
374 *
375 * These values account for -1s required.
376 */
377static const struct tv_mode tv_modes[] = {
378 {
379 .name = "NTSC-M",
380 .clock = 108000,
381 .refresh = 59940,
382 .oversample = TV_OVERSAMPLE_8X,
383 .component_only = 0,
384 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
385
386 .hsync_end = 64, .hblank_end = 124,
387 .hblank_start = 836, .htotal = 857,
388
389 .progressive = false, .trilevel_sync = false,
390
391 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
392 .vsync_len = 6,
393
394 .veq_ena = true, .veq_start_f1 = 0,
395 .veq_start_f2 = 1, .veq_len = 18,
396
397 .vi_end_f1 = 20, .vi_end_f2 = 21,
398 .nbr_end = 240,
399
400 .burst_ena = true,
401 .hburst_start = 72, .hburst_len = 34,
402 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
403 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
404 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
405 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
406
407 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
408 .dda1_inc = 135,
409 .dda2_inc = 20800, .dda2_size = 27456,
410 .dda3_inc = 0, .dda3_size = 0,
411 .sc_reset = TV_SC_RESET_EVERY_4,
412 .pal_burst = false,
413
414 .composite_levels = &ntsc_m_levels_composite,
415 .composite_color = &ntsc_m_csc_composite,
416 .svideo_levels = &ntsc_m_levels_svideo,
417 .svideo_color = &ntsc_m_csc_svideo,
418
419 .filter_table = filter_table,
420 },
421 {
422 .name = "NTSC-443",
423 .clock = 108000,
424 .refresh = 59940,
425 .oversample = TV_OVERSAMPLE_8X,
426 .component_only = 0,
427 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
428 .hsync_end = 64, .hblank_end = 124,
429 .hblank_start = 836, .htotal = 857,
430
431 .progressive = false, .trilevel_sync = false,
432
433 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
434 .vsync_len = 6,
435
436 .veq_ena = true, .veq_start_f1 = 0,
437 .veq_start_f2 = 1, .veq_len = 18,
438
439 .vi_end_f1 = 20, .vi_end_f2 = 21,
440 .nbr_end = 240,
441
442 .burst_ena = true,
443 .hburst_start = 72, .hburst_len = 34,
444 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
445 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
446 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
447 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
448
449 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
450 .dda1_inc = 168,
451 .dda2_inc = 4093, .dda2_size = 27456,
452 .dda3_inc = 310, .dda3_size = 525,
453 .sc_reset = TV_SC_RESET_NEVER,
454 .pal_burst = false,
455
456 .composite_levels = &ntsc_m_levels_composite,
457 .composite_color = &ntsc_m_csc_composite,
458 .svideo_levels = &ntsc_m_levels_svideo,
459 .svideo_color = &ntsc_m_csc_svideo,
460
461 .filter_table = filter_table,
462 },
463 {
464 .name = "NTSC-J",
465 .clock = 108000,
466 .refresh = 59940,
467 .oversample = TV_OVERSAMPLE_8X,
468 .component_only = 0,
469
470 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
471 .hsync_end = 64, .hblank_end = 124,
472 .hblank_start = 836, .htotal = 857,
473
474 .progressive = false, .trilevel_sync = false,
475
476 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
477 .vsync_len = 6,
478
479 .veq_ena = true, .veq_start_f1 = 0,
480 .veq_start_f2 = 1, .veq_len = 18,
481
482 .vi_end_f1 = 20, .vi_end_f2 = 21,
483 .nbr_end = 240,
484
485 .burst_ena = true,
486 .hburst_start = 72, .hburst_len = 34,
487 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
488 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
489 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
490 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
491
492 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
493 .dda1_inc = 135,
494 .dda2_inc = 20800, .dda2_size = 27456,
495 .dda3_inc = 0, .dda3_size = 0,
496 .sc_reset = TV_SC_RESET_EVERY_4,
497 .pal_burst = false,
498
499 .composite_levels = &ntsc_j_levels_composite,
500 .composite_color = &ntsc_j_csc_composite,
501 .svideo_levels = &ntsc_j_levels_svideo,
502 .svideo_color = &ntsc_j_csc_svideo,
503
504 .filter_table = filter_table,
505 },
506 {
507 .name = "PAL-M",
508 .clock = 108000,
509 .refresh = 59940,
510 .oversample = TV_OVERSAMPLE_8X,
511 .component_only = 0,
512
513 /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
514 .hsync_end = 64, .hblank_end = 124,
515 .hblank_start = 836, .htotal = 857,
516
517 .progressive = false, .trilevel_sync = false,
518
519 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
520 .vsync_len = 6,
521
522 .veq_ena = true, .veq_start_f1 = 0,
523 .veq_start_f2 = 1, .veq_len = 18,
524
525 .vi_end_f1 = 20, .vi_end_f2 = 21,
526 .nbr_end = 240,
527
528 .burst_ena = true,
529 .hburst_start = 72, .hburst_len = 34,
530 .vburst_start_f1 = 9, .vburst_end_f1 = 240,
531 .vburst_start_f2 = 10, .vburst_end_f2 = 240,
532 .vburst_start_f3 = 9, .vburst_end_f3 = 240,
533 .vburst_start_f4 = 10, .vburst_end_f4 = 240,
534
535 /* desired 3.5800000 actual 3.5800000 clock 107.52 */
536 .dda1_inc = 135,
537 .dda2_inc = 16704, .dda2_size = 27456,
538 .dda3_inc = 0, .dda3_size = 0,
539 .sc_reset = TV_SC_RESET_EVERY_8,
540 .pal_burst = true,
541
542 .composite_levels = &pal_m_levels_composite,
543 .composite_color = &pal_m_csc_composite,
544 .svideo_levels = &pal_m_levels_svideo,
545 .svideo_color = &pal_m_csc_svideo,
546
547 .filter_table = filter_table,
548 },
549 {
550 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
551 .name = "PAL-N",
552 .clock = 108000,
553 .refresh = 50000,
554 .oversample = TV_OVERSAMPLE_8X,
555 .component_only = 0,
556
557 .hsync_end = 64, .hblank_end = 128,
558 .hblank_start = 844, .htotal = 863,
559
560 .progressive = false, .trilevel_sync = false,
561
562
563 .vsync_start_f1 = 6, .vsync_start_f2 = 7,
564 .vsync_len = 6,
565
566 .veq_ena = true, .veq_start_f1 = 0,
567 .veq_start_f2 = 1, .veq_len = 18,
568
569 .vi_end_f1 = 24, .vi_end_f2 = 25,
570 .nbr_end = 286,
571
572 .burst_ena = true,
573 .hburst_start = 73, .hburst_len = 34,
574 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
575 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
576 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
577 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
578
579
580 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
581 .dda1_inc = 135,
582 .dda2_inc = 23578, .dda2_size = 27648,
583 .dda3_inc = 134, .dda3_size = 625,
584 .sc_reset = TV_SC_RESET_EVERY_8,
585 .pal_burst = true,
586
587 .composite_levels = &pal_n_levels_composite,
588 .composite_color = &pal_n_csc_composite,
589 .svideo_levels = &pal_n_levels_svideo,
590 .svideo_color = &pal_n_csc_svideo,
591
592 .filter_table = filter_table,
593 },
594 {
595 /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
596 .name = "PAL",
597 .clock = 108000,
598 .refresh = 50000,
599 .oversample = TV_OVERSAMPLE_8X,
600 .component_only = 0,
601
602 .hsync_end = 64, .hblank_end = 142,
603 .hblank_start = 844, .htotal = 863,
604
605 .progressive = false, .trilevel_sync = false,
606
607 .vsync_start_f1 = 5, .vsync_start_f2 = 6,
608 .vsync_len = 5,
609
610 .veq_ena = true, .veq_start_f1 = 0,
611 .veq_start_f2 = 1, .veq_len = 15,
612
613 .vi_end_f1 = 24, .vi_end_f2 = 25,
614 .nbr_end = 286,
615
616 .burst_ena = true,
617 .hburst_start = 73, .hburst_len = 32,
618 .vburst_start_f1 = 8, .vburst_end_f1 = 285,
619 .vburst_start_f2 = 8, .vburst_end_f2 = 286,
620 .vburst_start_f3 = 9, .vburst_end_f3 = 286,
621 .vburst_start_f4 = 9, .vburst_end_f4 = 285,
622
623 /* desired 4.4336180 actual 4.4336180 clock 107.52 */
624 .dda1_inc = 168,
625 .dda2_inc = 4122, .dda2_size = 27648,
626 .dda3_inc = 67, .dda3_size = 625,
627 .sc_reset = TV_SC_RESET_EVERY_8,
628 .pal_burst = true,
629
630 .composite_levels = &pal_levels_composite,
631 .composite_color = &pal_csc_composite,
632 .svideo_levels = &pal_levels_svideo,
633 .svideo_color = &pal_csc_svideo,
634
635 .filter_table = filter_table,
636 },
637 {
638 .name = "480p",
639 .clock = 107520,
640 .refresh = 59940,
641 .oversample = TV_OVERSAMPLE_4X,
642 .component_only = 1,
643
644 .hsync_end = 64, .hblank_end = 122,
645 .hblank_start = 842, .htotal = 857,
646
647 .progressive = true, .trilevel_sync = false,
648
649 .vsync_start_f1 = 12, .vsync_start_f2 = 12,
650 .vsync_len = 12,
651
652 .veq_ena = false,
653
654 .vi_end_f1 = 44, .vi_end_f2 = 44,
655 .nbr_end = 479,
656
657 .burst_ena = false,
658
659 .filter_table = filter_table,
660 },
661 {
662 .name = "576p",
663 .clock = 107520,
664 .refresh = 50000,
665 .oversample = TV_OVERSAMPLE_4X,
666 .component_only = 1,
667
668 .hsync_end = 64, .hblank_end = 139,
669 .hblank_start = 859, .htotal = 863,
670
671 .progressive = true, .trilevel_sync = false,
672
673 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
674 .vsync_len = 10,
675
676 .veq_ena = false,
677
678 .vi_end_f1 = 48, .vi_end_f2 = 48,
679 .nbr_end = 575,
680
681 .burst_ena = false,
682
683 .filter_table = filter_table,
684 },
685 {
686 .name = "720p@60Hz",
687 .clock = 148800,
688 .refresh = 60000,
689 .oversample = TV_OVERSAMPLE_2X,
690 .component_only = 1,
691
692 .hsync_end = 80, .hblank_end = 300,
693 .hblank_start = 1580, .htotal = 1649,
694
695 .progressive = true, .trilevel_sync = true,
696
697 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
698 .vsync_len = 10,
699
700 .veq_ena = false,
701
702 .vi_end_f1 = 29, .vi_end_f2 = 29,
703 .nbr_end = 719,
704
705 .burst_ena = false,
706
707 .filter_table = filter_table,
708 },
709 {
710 .name = "720p@50Hz",
711 .clock = 148800,
712 .refresh = 50000,
713 .oversample = TV_OVERSAMPLE_2X,
714 .component_only = 1,
715
716 .hsync_end = 80, .hblank_end = 300,
717 .hblank_start = 1580, .htotal = 1979,
718
719 .progressive = true, .trilevel_sync = true,
720
721 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
722 .vsync_len = 10,
723
724 .veq_ena = false,
725
726 .vi_end_f1 = 29, .vi_end_f2 = 29,
727 .nbr_end = 719,
728
729 .burst_ena = false,
730
731 .filter_table = filter_table,
732 .max_srcw = 800
733 },
734 {
735 .name = "1080i@50Hz",
736 .clock = 148800,
737 .refresh = 50000,
738 .oversample = TV_OVERSAMPLE_2X,
739 .component_only = 1,
740
741 .hsync_end = 88, .hblank_end = 235,
742 .hblank_start = 2155, .htotal = 2639,
743
744 .progressive = false, .trilevel_sync = true,
745
746 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
747 .vsync_len = 10,
748
749 .veq_ena = true, .veq_start_f1 = 4,
750 .veq_start_f2 = 4, .veq_len = 10,
751
752
753 .vi_end_f1 = 21, .vi_end_f2 = 22,
754 .nbr_end = 539,
755
756 .burst_ena = false,
757
758 .filter_table = filter_table,
759 },
760 {
761 .name = "1080i@60Hz",
762 .clock = 148800,
763 .refresh = 60000,
764 .oversample = TV_OVERSAMPLE_2X,
765 .component_only = 1,
766
767 .hsync_end = 88, .hblank_end = 235,
768 .hblank_start = 2155, .htotal = 2199,
769
770 .progressive = false, .trilevel_sync = true,
771
772 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
773 .vsync_len = 10,
774
775 .veq_ena = true, .veq_start_f1 = 4,
776 .veq_start_f2 = 4, .veq_len = 10,
777
778
779 .vi_end_f1 = 21, .vi_end_f2 = 22,
780 .nbr_end = 539,
781
782 .burst_ena = false,
783
784 .filter_table = filter_table,
785 },
786};
787
788static struct intel_tv *enc_to_tv(struct intel_encoder *encoder)
789{
790 return container_of(encoder, struct intel_tv, base);
791}
792
793static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
794{
795 return enc_to_tv(intel_attached_encoder(connector));
796}
797
798static bool
799intel_tv_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe)
800{
801 struct drm_device *dev = encoder->base.dev;
802 struct drm_i915_private *dev_priv = to_i915(dev);
803 u32 tmp = I915_READ(TV_CTL);
804
805 if (!(tmp & TV_ENC_ENABLE))
806 return false;
807
808 *pipe = PORT_TO_PIPE(tmp);
809
810 return true;
811}
812
813static void
814intel_enable_tv(struct intel_encoder *encoder,
815 const struct intel_crtc_state *pipe_config,
816 const struct drm_connector_state *conn_state)
817{
818 struct drm_device *dev = encoder->base.dev;
819 struct drm_i915_private *dev_priv = to_i915(dev);
820
821 /* Prevents vblank waits from timing out in intel_tv_detect_type() */
822 intel_wait_for_vblank(dev_priv,
823 to_intel_crtc(pipe_config->base.crtc)->pipe);
824
825 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
826}
827
828static void
829intel_disable_tv(struct intel_encoder *encoder,
830 const struct intel_crtc_state *old_crtc_state,
831 const struct drm_connector_state *old_conn_state)
832{
833 struct drm_device *dev = encoder->base.dev;
834 struct drm_i915_private *dev_priv = to_i915(dev);
835
836 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
837}
838
839static const struct tv_mode *intel_tv_mode_find(const struct drm_connector_state *conn_state)
840{
841 int format = conn_state->tv.mode;
842
843 return &tv_modes[format];
844}
845
846static enum drm_mode_status
847intel_tv_mode_valid(struct drm_connector *connector,
848 struct drm_display_mode *mode)
849{
850 const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
851 int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
852
853 if (mode->clock > max_dotclk)
854 return MODE_CLOCK_HIGH;
855
856 /* Ensure TV refresh is close to desired refresh */
857 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
858 < 1000)
859 return MODE_OK;
860
861 return MODE_CLOCK_RANGE;
862}
863
864
865static void
866intel_tv_get_config(struct intel_encoder *encoder,
867 struct intel_crtc_state *pipe_config)
868{
869 pipe_config->output_types |= BIT(INTEL_OUTPUT_TVOUT);
870
871 pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
872}
873
874static bool
875intel_tv_compute_config(struct intel_encoder *encoder,
876 struct intel_crtc_state *pipe_config,
877 struct drm_connector_state *conn_state)
878{
879 const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
880
881 if (!tv_mode)
882 return false;
883
884 pipe_config->base.adjusted_mode.crtc_clock = tv_mode->clock;
885 DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
886 pipe_config->pipe_bpp = 8*3;
887
888 /* TV has it's own notion of sync and other mode flags, so clear them. */
889 pipe_config->base.adjusted_mode.flags = 0;
890
891 /*
892 * FIXME: We don't check whether the input mode is actually what we want
893 * or whether userspace is doing something stupid.
894 */
895
896 return true;
897}
898
899static void
900set_tv_mode_timings(struct drm_i915_private *dev_priv,
901 const struct tv_mode *tv_mode,
902 bool burst_ena)
903{
904 u32 hctl1, hctl2, hctl3;
905 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
906
907 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
908 (tv_mode->htotal << TV_HTOTAL_SHIFT);
909
910 hctl2 = (tv_mode->hburst_start << 16) |
911 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
912
913 if (burst_ena)
914 hctl2 |= TV_BURST_ENA;
915
916 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
917 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
918
919 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
920 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
921 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
922
923 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
924 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
925 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
926
927 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
928 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
929 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
930
931 if (tv_mode->veq_ena)
932 vctl3 |= TV_EQUAL_ENA;
933
934 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
935 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
936
937 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
938 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
939
940 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
941 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
942
943 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
944 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
945
946 I915_WRITE(TV_H_CTL_1, hctl1);
947 I915_WRITE(TV_H_CTL_2, hctl2);
948 I915_WRITE(TV_H_CTL_3, hctl3);
949 I915_WRITE(TV_V_CTL_1, vctl1);
950 I915_WRITE(TV_V_CTL_2, vctl2);
951 I915_WRITE(TV_V_CTL_3, vctl3);
952 I915_WRITE(TV_V_CTL_4, vctl4);
953 I915_WRITE(TV_V_CTL_5, vctl5);
954 I915_WRITE(TV_V_CTL_6, vctl6);
955 I915_WRITE(TV_V_CTL_7, vctl7);
956}
957
958static void set_color_conversion(struct drm_i915_private *dev_priv,
959 const struct color_conversion *color_conversion)
960{
961 if (!color_conversion)
962 return;
963
964 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
965 color_conversion->gy);
966 I915_WRITE(TV_CSC_Y2, (color_conversion->by << 16) |
967 color_conversion->ay);
968 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
969 color_conversion->gu);
970 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
971 color_conversion->au);
972 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
973 color_conversion->gv);
974 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
975 color_conversion->av);
976}
977
978static void intel_tv_pre_enable(struct intel_encoder *encoder,
979 const struct intel_crtc_state *pipe_config,
980 const struct drm_connector_state *conn_state)
981{
982 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
983 struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->base.crtc);
984 struct intel_tv *intel_tv = enc_to_tv(encoder);
985 const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
986 u32 tv_ctl;
987 u32 scctl1, scctl2, scctl3;
988 int i, j;
989 const struct video_levels *video_levels;
990 const struct color_conversion *color_conversion;
991 bool burst_ena;
992 int xpos = 0x0, ypos = 0x0;
993 unsigned int xsize, ysize;
994
995 if (!tv_mode)
996 return; /* can't happen (mode_prepare prevents this) */
997
998 tv_ctl = I915_READ(TV_CTL);
999 tv_ctl &= TV_CTL_SAVE;
1000
1001 switch (intel_tv->type) {
1002 default:
1003 case DRM_MODE_CONNECTOR_Unknown:
1004 case DRM_MODE_CONNECTOR_Composite:
1005 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1006 video_levels = tv_mode->composite_levels;
1007 color_conversion = tv_mode->composite_color;
1008 burst_ena = tv_mode->burst_ena;
1009 break;
1010 case DRM_MODE_CONNECTOR_Component:
1011 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1012 video_levels = &component_levels;
1013 if (tv_mode->burst_ena)
1014 color_conversion = &sdtv_csc_yprpb;
1015 else
1016 color_conversion = &hdtv_csc_yprpb;
1017 burst_ena = false;
1018 break;
1019 case DRM_MODE_CONNECTOR_SVIDEO:
1020 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1021 video_levels = tv_mode->svideo_levels;
1022 color_conversion = tv_mode->svideo_color;
1023 burst_ena = tv_mode->burst_ena;
1024 break;
1025 }
1026
1027 if (intel_crtc->pipe == 1)
1028 tv_ctl |= TV_ENC_PIPEB_SELECT;
1029 tv_ctl |= tv_mode->oversample;
1030
1031 if (tv_mode->progressive)
1032 tv_ctl |= TV_PROGRESSIVE;
1033 if (tv_mode->trilevel_sync)
1034 tv_ctl |= TV_TRILEVEL_SYNC;
1035 if (tv_mode->pal_burst)
1036 tv_ctl |= TV_PAL_BURST;
1037
1038 scctl1 = 0;
1039 if (tv_mode->dda1_inc)
1040 scctl1 |= TV_SC_DDA1_EN;
1041 if (tv_mode->dda2_inc)
1042 scctl1 |= TV_SC_DDA2_EN;
1043 if (tv_mode->dda3_inc)
1044 scctl1 |= TV_SC_DDA3_EN;
1045 scctl1 |= tv_mode->sc_reset;
1046 if (video_levels)
1047 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1048 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1049
1050 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1051 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1052
1053 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1054 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1055
1056 /* Enable two fixes for the chips that need them. */
1057 if (IS_I915GM(dev_priv))
1058 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1059
1060 set_tv_mode_timings(dev_priv, tv_mode, burst_ena);
1061
1062 I915_WRITE(TV_SC_CTL_1, scctl1);
1063 I915_WRITE(TV_SC_CTL_2, scctl2);
1064 I915_WRITE(TV_SC_CTL_3, scctl3);
1065
1066 set_color_conversion(dev_priv, color_conversion);
1067
1068 if (INTEL_GEN(dev_priv) >= 4)
1069 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1070 else
1071 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1072
1073 if (video_levels)
1074 I915_WRITE(TV_CLR_LEVEL,
1075 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1076 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1077
1078 assert_pipe_disabled(dev_priv, intel_crtc->pipe);
1079
1080 /* Filter ctl must be set before TV_WIN_SIZE */
1081 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1082 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1083 if (tv_mode->progressive)
1084 ysize = tv_mode->nbr_end + 1;
1085 else
1086 ysize = 2*tv_mode->nbr_end + 1;
1087
1088 xpos += conn_state->tv.margins.left;
1089 ypos += conn_state->tv.margins.top;
1090 xsize -= (conn_state->tv.margins.left +
1091 conn_state->tv.margins.right);
1092 ysize -= (conn_state->tv.margins.top +
1093 conn_state->tv.margins.bottom);
1094 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1095 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1096
1097 j = 0;
1098 for (i = 0; i < 60; i++)
1099 I915_WRITE(TV_H_LUMA(i), tv_mode->filter_table[j++]);
1100 for (i = 0; i < 60; i++)
1101 I915_WRITE(TV_H_CHROMA(i), tv_mode->filter_table[j++]);
1102 for (i = 0; i < 43; i++)
1103 I915_WRITE(TV_V_LUMA(i), tv_mode->filter_table[j++]);
1104 for (i = 0; i < 43; i++)
1105 I915_WRITE(TV_V_CHROMA(i), tv_mode->filter_table[j++]);
1106 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1107 I915_WRITE(TV_CTL, tv_ctl);
1108}
1109
1110static const struct drm_display_mode reported_modes[] = {
1111 {
1112 .name = "NTSC 480i",
1113 .clock = 107520,
1114 .hdisplay = 1280,
1115 .hsync_start = 1368,
1116 .hsync_end = 1496,
1117 .htotal = 1712,
1118
1119 .vdisplay = 1024,
1120 .vsync_start = 1027,
1121 .vsync_end = 1034,
1122 .vtotal = 1104,
1123 .type = DRM_MODE_TYPE_DRIVER,
1124 },
1125};
1126
1127static int
1128intel_tv_detect_type(struct intel_tv *intel_tv,
1129 struct drm_connector *connector)
1130{
1131 struct drm_crtc *crtc = connector->state->crtc;
1132 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1133 struct drm_device *dev = connector->dev;
1134 struct drm_i915_private *dev_priv = to_i915(dev);
1135 u32 tv_ctl, save_tv_ctl;
1136 u32 tv_dac, save_tv_dac;
1137 int type;
1138
1139 /* Disable TV interrupts around load detect or we'll recurse */
1140 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1141 spin_lock_irq(&dev_priv->irq_lock);
1142 i915_disable_pipestat(dev_priv, 0,
1143 PIPE_HOTPLUG_INTERRUPT_STATUS |
1144 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1145 spin_unlock_irq(&dev_priv->irq_lock);
1146 }
1147
1148 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1149 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1150
1151 /* Poll for TV detection */
1152 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1153 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1154 if (intel_crtc->pipe == 1)
1155 tv_ctl |= TV_ENC_PIPEB_SELECT;
1156 else
1157 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1158
1159 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1160 tv_dac |= (TVDAC_STATE_CHG_EN |
1161 TVDAC_A_SENSE_CTL |
1162 TVDAC_B_SENSE_CTL |
1163 TVDAC_C_SENSE_CTL |
1164 DAC_CTL_OVERRIDE |
1165 DAC_A_0_7_V |
1166 DAC_B_0_7_V |
1167 DAC_C_0_7_V);
1168
1169
1170 /*
1171 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1172 * the TV is misdetected. This is hardware requirement.
1173 */
1174 if (IS_GM45(dev_priv))
1175 tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1176 TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1177
1178 I915_WRITE(TV_CTL, tv_ctl);
1179 I915_WRITE(TV_DAC, tv_dac);
1180 POSTING_READ(TV_DAC);
1181
1182 intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
1183
1184 type = -1;
1185 tv_dac = I915_READ(TV_DAC);
1186 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1187 /*
1188 * A B C
1189 * 0 1 1 Composite
1190 * 1 0 X svideo
1191 * 0 0 0 Component
1192 */
1193 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1194 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1195 type = DRM_MODE_CONNECTOR_Composite;
1196 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1197 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1198 type = DRM_MODE_CONNECTOR_SVIDEO;
1199 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1200 DRM_DEBUG_KMS("Detected Component TV connection\n");
1201 type = DRM_MODE_CONNECTOR_Component;
1202 } else {
1203 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1204 type = -1;
1205 }
1206
1207 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1208 I915_WRITE(TV_CTL, save_tv_ctl);
1209 POSTING_READ(TV_CTL);
1210
1211 /* For unknown reasons the hw barfs if we don't do this vblank wait. */
1212 intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
1213
1214 /* Restore interrupt config */
1215 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1216 spin_lock_irq(&dev_priv->irq_lock);
1217 i915_enable_pipestat(dev_priv, 0,
1218 PIPE_HOTPLUG_INTERRUPT_STATUS |
1219 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1220 spin_unlock_irq(&dev_priv->irq_lock);
1221 }
1222
1223 return type;
1224}
1225
1226/*
1227 * Here we set accurate tv format according to connector type
1228 * i.e Component TV should not be assigned by NTSC or PAL
1229 */
1230static void intel_tv_find_better_format(struct drm_connector *connector)
1231{
1232 struct intel_tv *intel_tv = intel_attached_tv(connector);
1233 const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
1234 int i;
1235
1236 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1237 tv_mode->component_only)
1238 return;
1239
1240
1241 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
1242 tv_mode = tv_modes + i;
1243
1244 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1245 tv_mode->component_only)
1246 break;
1247 }
1248
1249 connector->state->tv.mode = i;
1250}
1251
1252static int
1253intel_tv_detect(struct drm_connector *connector,
1254 struct drm_modeset_acquire_ctx *ctx,
1255 bool force)
1256{
1257 struct drm_display_mode mode;
1258 struct intel_tv *intel_tv = intel_attached_tv(connector);
1259 enum drm_connector_status status;
1260 int type;
1261
1262 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
1263 connector->base.id, connector->name,
1264 force);
1265
1266 mode = reported_modes[0];
1267
1268 if (force) {
1269 struct intel_load_detect_pipe tmp;
1270 int ret;
1271
1272 ret = intel_get_load_detect_pipe(connector, &mode, &tmp, ctx);
1273 if (ret < 0)
1274 return ret;
1275
1276 if (ret > 0) {
1277 type = intel_tv_detect_type(intel_tv, connector);
1278 intel_release_load_detect_pipe(connector, &tmp, ctx);
1279 status = type < 0 ?
1280 connector_status_disconnected :
1281 connector_status_connected;
1282 } else
1283 status = connector_status_unknown;
1284
1285 if (status == connector_status_connected) {
1286 intel_tv->type = type;
1287 intel_tv_find_better_format(connector);
1288 }
1289
1290 return status;
1291 } else
1292 return connector->status;
1293}
1294
1295static const struct input_res {
1296 const char *name;
1297 int w, h;
1298} input_res_table[] = {
1299 {"640x480", 640, 480},
1300 {"800x600", 800, 600},
1301 {"1024x768", 1024, 768},
1302 {"1280x1024", 1280, 1024},
1303 {"848x480", 848, 480},
1304 {"1280x720", 1280, 720},
1305 {"1920x1080", 1920, 1080},
1306};
1307
1308/*
1309 * Chose preferred mode according to line number of TV format
1310 */
1311static void
1312intel_tv_choose_preferred_modes(const struct tv_mode *tv_mode,
1313 struct drm_display_mode *mode_ptr)
1314{
1315 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1316 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1317 else if (tv_mode->nbr_end > 480) {
1318 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1319 if (mode_ptr->vdisplay == 720)
1320 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1321 } else if (mode_ptr->vdisplay == 1080)
1322 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1323 }
1324}
1325
1326static int
1327intel_tv_get_modes(struct drm_connector *connector)
1328{
1329 struct drm_display_mode *mode_ptr;
1330 const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
1331 int j, count = 0;
1332 u64 tmp;
1333
1334 for (j = 0; j < ARRAY_SIZE(input_res_table);
1335 j++) {
1336 const struct input_res *input = &input_res_table[j];
1337 unsigned int hactive_s = input->w;
1338 unsigned int vactive_s = input->h;
1339
1340 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1341 continue;
1342
1343 if (input->w > 1024 && (!tv_mode->progressive
1344 && !tv_mode->component_only))
1345 continue;
1346
1347 mode_ptr = drm_mode_create(connector->dev);
1348 if (!mode_ptr)
1349 continue;
1350 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1351 mode_ptr->name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
1352
1353 mode_ptr->hdisplay = hactive_s;
1354 mode_ptr->hsync_start = hactive_s + 1;
1355 mode_ptr->hsync_end = hactive_s + 64;
1356 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1357 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1358 mode_ptr->htotal = hactive_s + 96;
1359
1360 mode_ptr->vdisplay = vactive_s;
1361 mode_ptr->vsync_start = vactive_s + 1;
1362 mode_ptr->vsync_end = vactive_s + 32;
1363 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1364 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1365 mode_ptr->vtotal = vactive_s + 33;
1366
1367 tmp = mul_u32_u32(tv_mode->refresh, mode_ptr->vtotal);
1368 tmp *= mode_ptr->htotal;
1369 tmp = div_u64(tmp, 1000000);
1370 mode_ptr->clock = (int) tmp;
1371
1372 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1373 intel_tv_choose_preferred_modes(tv_mode, mode_ptr);
1374 drm_mode_probed_add(connector, mode_ptr);
1375 count++;
1376 }
1377
1378 return count;
1379}
1380
1381static void
1382intel_tv_destroy(struct drm_connector *connector)
1383{
1384 drm_connector_cleanup(connector);
1385 kfree(connector);
1386}
1387
1388static const struct drm_connector_funcs intel_tv_connector_funcs = {
1389 .late_register = intel_connector_register,
1390 .early_unregister = intel_connector_unregister,
1391 .destroy = intel_tv_destroy,
1392 .fill_modes = drm_helper_probe_single_connector_modes,
1393 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1394 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1395};
1396
1397static int intel_tv_atomic_check(struct drm_connector *connector,
1398 struct drm_connector_state *new_state)
1399{
1400 struct drm_crtc_state *new_crtc_state;
1401 struct drm_connector_state *old_state;
1402
1403 if (!new_state->crtc)
1404 return 0;
1405
1406 old_state = drm_atomic_get_old_connector_state(new_state->state, connector);
1407 new_crtc_state = drm_atomic_get_new_crtc_state(new_state->state, new_state->crtc);
1408
1409 if (old_state->tv.mode != new_state->tv.mode ||
1410 old_state->tv.margins.left != new_state->tv.margins.left ||
1411 old_state->tv.margins.right != new_state->tv.margins.right ||
1412 old_state->tv.margins.top != new_state->tv.margins.top ||
1413 old_state->tv.margins.bottom != new_state->tv.margins.bottom) {
1414 /* Force a modeset. */
1415
1416 new_crtc_state->connectors_changed = true;
1417 }
1418
1419 return 0;
1420}
1421
1422static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1423 .detect_ctx = intel_tv_detect,
1424 .mode_valid = intel_tv_mode_valid,
1425 .get_modes = intel_tv_get_modes,
1426 .atomic_check = intel_tv_atomic_check,
1427};
1428
1429static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1430 .destroy = intel_encoder_destroy,
1431};
1432
1433void
1434intel_tv_init(struct drm_i915_private *dev_priv)
1435{
1436 struct drm_device *dev = &dev_priv->drm;
1437 struct drm_connector *connector;
1438 struct intel_tv *intel_tv;
1439 struct intel_encoder *intel_encoder;
1440 struct intel_connector *intel_connector;
1441 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1442 const char *tv_format_names[ARRAY_SIZE(tv_modes)];
1443 int i, initial_mode = 0;
1444 struct drm_connector_state *state;
1445
1446 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1447 return;
1448
1449 if (!intel_bios_is_tv_present(dev_priv)) {
1450 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1451 return;
1452 }
1453
1454 /*
1455 * Sanity check the TV output by checking to see if the
1456 * DAC register holds a value
1457 */
1458 save_tv_dac = I915_READ(TV_DAC);
1459
1460 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1461 tv_dac_on = I915_READ(TV_DAC);
1462
1463 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1464 tv_dac_off = I915_READ(TV_DAC);
1465
1466 I915_WRITE(TV_DAC, save_tv_dac);
1467
1468 /*
1469 * If the register does not hold the state change enable
1470 * bit, (either as a 0 or a 1), assume it doesn't really
1471 * exist
1472 */
1473 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1474 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1475 return;
1476
1477 intel_tv = kzalloc(sizeof(*intel_tv), GFP_KERNEL);
1478 if (!intel_tv) {
1479 return;
1480 }
1481
1482 intel_connector = intel_connector_alloc();
1483 if (!intel_connector) {
1484 kfree(intel_tv);
1485 return;
1486 }
1487
1488 intel_encoder = &intel_tv->base;
1489 connector = &intel_connector->base;
1490 state = connector->state;
1491
1492 /*
1493 * The documentation, for the older chipsets at least, recommend
1494 * using a polling method rather than hotplug detection for TVs.
1495 * This is because in order to perform the hotplug detection, the PLLs
1496 * for the TV must be kept alive increasing power drain and starving
1497 * bandwidth from other encoders. Notably for instance, it causes
1498 * pipe underruns on Crestline when this encoder is supposedly idle.
1499 *
1500 * More recent chipsets favour HDMI rather than integrated S-Video.
1501 */
1502 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1503
1504 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1505 DRM_MODE_CONNECTOR_SVIDEO);
1506
1507 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1508 DRM_MODE_ENCODER_TVDAC, "TV");
1509
1510 intel_encoder->compute_config = intel_tv_compute_config;
1511 intel_encoder->get_config = intel_tv_get_config;
1512 intel_encoder->pre_enable = intel_tv_pre_enable;
1513 intel_encoder->enable = intel_enable_tv;
1514 intel_encoder->disable = intel_disable_tv;
1515 intel_encoder->get_hw_state = intel_tv_get_hw_state;
1516 intel_connector->get_hw_state = intel_connector_get_hw_state;
1517
1518 intel_connector_attach_encoder(intel_connector, intel_encoder);
1519
1520 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1521 intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
1522 intel_encoder->port = PORT_NONE;
1523 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1524 intel_encoder->cloneable = 0;
1525 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1526 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1527
1528 /* BIOS margin values */
1529 state->tv.margins.left = 54;
1530 state->tv.margins.top = 36;
1531 state->tv.margins.right = 46;
1532 state->tv.margins.bottom = 37;
1533
1534 state->tv.mode = initial_mode;
1535
1536 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1537 connector->interlace_allowed = false;
1538 connector->doublescan_allowed = false;
1539
1540 /* Create TV properties then attach current values */
1541 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1542 tv_format_names[i] = tv_modes[i].name;
1543 drm_mode_create_tv_properties(dev,
1544 ARRAY_SIZE(tv_modes),
1545 tv_format_names);
1546
1547 drm_object_attach_property(&connector->base, dev->mode_config.tv_mode_property,
1548 state->tv.mode);
1549 drm_object_attach_property(&connector->base,
1550 dev->mode_config.tv_left_margin_property,
1551 state->tv.margins.left);
1552 drm_object_attach_property(&connector->base,
1553 dev->mode_config.tv_top_margin_property,
1554 state->tv.margins.top);
1555 drm_object_attach_property(&connector->base,
1556 dev->mode_config.tv_right_margin_property,
1557 state->tv.margins.right);
1558 drm_object_attach_property(&connector->base,
1559 dev->mode_config.tv_bottom_margin_property,
1560 state->tv.margins.bottom);
1561}