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Merge tag 'drm-intel-fixes-2016-03-11' of git://anongit.freedesktop.org/drm-intel...
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_tv.c
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
41 enum 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 */
47 struct 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
88 struct video_levels {
89 int blank, black, burst;
90 };
91
92 struct color_conversion {
93 u16 ry, gy, by, ay;
94 u16 ru, gu, bu, au;
95 u16 rv, gv, bv, av;
96 };
97
98 static 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 */
220 static 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
226 static const struct video_levels ntsc_m_levels_composite = {
227 .blank = 225, .black = 267, .burst = 113,
228 };
229
230 static 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
236 static const struct video_levels ntsc_m_levels_svideo = {
237 .blank = 266, .black = 316, .burst = 133,
238 };
239
240 static 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
246 static const struct video_levels ntsc_j_levels_composite = {
247 .blank = 225, .black = 225, .burst = 113,
248 };
249
250 static 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
256 static const struct video_levels ntsc_j_levels_svideo = {
257 .blank = 266, .black = 266, .burst = 133,
258 };
259
260 static 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
266 static const struct video_levels pal_levels_composite = {
267 .blank = 237, .black = 237, .burst = 118,
268 };
269
270 static 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
276 static const struct video_levels pal_levels_svideo = {
277 .blank = 280, .black = 280, .burst = 139,
278 };
279
280 static 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
286 static const struct video_levels pal_m_levels_composite = {
287 .blank = 225, .black = 267, .burst = 113,
288 };
289
290 static 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
296 static const struct video_levels pal_m_levels_svideo = {
297 .blank = 266, .black = 316, .burst = 133,
298 };
299
300 static 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
306 static const struct video_levels pal_n_levels_composite = {
307 .blank = 225, .black = 267, .burst = 118,
308 };
309
310 static 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
316 static const struct video_levels pal_n_levels_svideo = {
317 .blank = 266, .black = 316, .burst = 139,
318 };
319
320 /*
321 * Component connections
322 */
323 static 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
329 static 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
335 static 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
341 static 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
347 static const struct video_levels component_levels = {
348 .blank = 279, .black = 279, .burst = 0,
349 };
350
351
352 struct 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
416 static 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
827 static struct intel_tv *enc_to_tv(struct intel_encoder *encoder)
828 {
829 return container_of(encoder, struct intel_tv, base);
830 }
831
832 static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
833 {
834 return enc_to_tv(intel_attached_encoder(connector));
835 }
836
837 static bool
838 intel_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
852 static void
853 intel_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
865 static void
866 intel_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
874 static const struct tv_mode *
875 intel_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
888 static const struct tv_mode *
889 intel_tv_mode_find(struct intel_tv *intel_tv)
890 {
891 return intel_tv_mode_lookup(intel_tv->tv_format);
892 }
893
894 static enum drm_mode_status
895 intel_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
901 /* Ensure TV refresh is close to desired refresh */
902 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
903 < 1000)
904 return MODE_OK;
905
906 return MODE_CLOCK_RANGE;
907 }
908
909
910 static void
911 intel_tv_get_config(struct intel_encoder *encoder,
912 struct intel_crtc_state *pipe_config)
913 {
914 pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
915 }
916
917 static bool
918 intel_tv_compute_config(struct intel_encoder *encoder,
919 struct intel_crtc_state *pipe_config)
920 {
921 struct intel_tv *intel_tv = enc_to_tv(encoder);
922 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
923
924 if (!tv_mode)
925 return false;
926
927 pipe_config->base.adjusted_mode.crtc_clock = tv_mode->clock;
928 DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
929 pipe_config->pipe_bpp = 8*3;
930
931 /* TV has it's own notion of sync and other mode flags, so clear them. */
932 pipe_config->base.adjusted_mode.flags = 0;
933
934 /*
935 * FIXME: We don't check whether the input mode is actually what we want
936 * or whether userspace is doing something stupid.
937 */
938
939 return true;
940 }
941
942 static void
943 set_tv_mode_timings(struct drm_i915_private *dev_priv,
944 const struct tv_mode *tv_mode,
945 bool burst_ena)
946 {
947 u32 hctl1, hctl2, hctl3;
948 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
949
950 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
951 (tv_mode->htotal << TV_HTOTAL_SHIFT);
952
953 hctl2 = (tv_mode->hburst_start << 16) |
954 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
955
956 if (burst_ena)
957 hctl2 |= TV_BURST_ENA;
958
959 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
960 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
961
962 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
963 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
964 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
965
966 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
967 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
968 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
969
970 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
971 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
972 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
973
974 if (tv_mode->veq_ena)
975 vctl3 |= TV_EQUAL_ENA;
976
977 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
978 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
979
980 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
981 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
982
983 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
984 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
985
986 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
987 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
988
989 I915_WRITE(TV_H_CTL_1, hctl1);
990 I915_WRITE(TV_H_CTL_2, hctl2);
991 I915_WRITE(TV_H_CTL_3, hctl3);
992 I915_WRITE(TV_V_CTL_1, vctl1);
993 I915_WRITE(TV_V_CTL_2, vctl2);
994 I915_WRITE(TV_V_CTL_3, vctl3);
995 I915_WRITE(TV_V_CTL_4, vctl4);
996 I915_WRITE(TV_V_CTL_5, vctl5);
997 I915_WRITE(TV_V_CTL_6, vctl6);
998 I915_WRITE(TV_V_CTL_7, vctl7);
999 }
1000
1001 static void set_color_conversion(struct drm_i915_private *dev_priv,
1002 const struct color_conversion *color_conversion)
1003 {
1004 if (!color_conversion)
1005 return;
1006
1007 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1008 color_conversion->gy);
1009 I915_WRITE(TV_CSC_Y2, (color_conversion->by << 16) |
1010 color_conversion->ay);
1011 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1012 color_conversion->gu);
1013 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1014 color_conversion->au);
1015 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1016 color_conversion->gv);
1017 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1018 color_conversion->av);
1019 }
1020
1021 static void intel_tv_pre_enable(struct intel_encoder *encoder)
1022 {
1023 struct drm_device *dev = encoder->base.dev;
1024 struct drm_i915_private *dev_priv = dev->dev_private;
1025 struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1026 struct intel_tv *intel_tv = enc_to_tv(encoder);
1027 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1028 u32 tv_ctl;
1029 u32 scctl1, scctl2, scctl3;
1030 int i, j;
1031 const struct video_levels *video_levels;
1032 const struct color_conversion *color_conversion;
1033 bool burst_ena;
1034 int xpos = 0x0, ypos = 0x0;
1035 unsigned int xsize, ysize;
1036
1037 if (!tv_mode)
1038 return; /* can't happen (mode_prepare prevents this) */
1039
1040 tv_ctl = I915_READ(TV_CTL);
1041 tv_ctl &= TV_CTL_SAVE;
1042
1043 switch (intel_tv->type) {
1044 default:
1045 case DRM_MODE_CONNECTOR_Unknown:
1046 case DRM_MODE_CONNECTOR_Composite:
1047 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
1048 video_levels = tv_mode->composite_levels;
1049 color_conversion = tv_mode->composite_color;
1050 burst_ena = tv_mode->burst_ena;
1051 break;
1052 case DRM_MODE_CONNECTOR_Component:
1053 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
1054 video_levels = &component_levels;
1055 if (tv_mode->burst_ena)
1056 color_conversion = &sdtv_csc_yprpb;
1057 else
1058 color_conversion = &hdtv_csc_yprpb;
1059 burst_ena = false;
1060 break;
1061 case DRM_MODE_CONNECTOR_SVIDEO:
1062 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
1063 video_levels = tv_mode->svideo_levels;
1064 color_conversion = tv_mode->svideo_color;
1065 burst_ena = tv_mode->burst_ena;
1066 break;
1067 }
1068
1069 if (intel_crtc->pipe == 1)
1070 tv_ctl |= TV_ENC_PIPEB_SELECT;
1071 tv_ctl |= tv_mode->oversample;
1072
1073 if (tv_mode->progressive)
1074 tv_ctl |= TV_PROGRESSIVE;
1075 if (tv_mode->trilevel_sync)
1076 tv_ctl |= TV_TRILEVEL_SYNC;
1077 if (tv_mode->pal_burst)
1078 tv_ctl |= TV_PAL_BURST;
1079
1080 scctl1 = 0;
1081 if (tv_mode->dda1_inc)
1082 scctl1 |= TV_SC_DDA1_EN;
1083 if (tv_mode->dda2_inc)
1084 scctl1 |= TV_SC_DDA2_EN;
1085 if (tv_mode->dda3_inc)
1086 scctl1 |= TV_SC_DDA3_EN;
1087 scctl1 |= tv_mode->sc_reset;
1088 if (video_levels)
1089 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1090 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1091
1092 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1093 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1094
1095 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1096 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1097
1098 /* Enable two fixes for the chips that need them. */
1099 if (IS_I915GM(dev))
1100 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1101
1102 set_tv_mode_timings(dev_priv, tv_mode, burst_ena);
1103
1104 I915_WRITE(TV_SC_CTL_1, scctl1);
1105 I915_WRITE(TV_SC_CTL_2, scctl2);
1106 I915_WRITE(TV_SC_CTL_3, scctl3);
1107
1108 set_color_conversion(dev_priv, color_conversion);
1109
1110 if (INTEL_INFO(dev)->gen >= 4)
1111 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1112 else
1113 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1114
1115 if (video_levels)
1116 I915_WRITE(TV_CLR_LEVEL,
1117 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1118 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1119
1120 assert_pipe_disabled(dev_priv, intel_crtc->pipe);
1121
1122 /* Filter ctl must be set before TV_WIN_SIZE */
1123 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1124 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1125 if (tv_mode->progressive)
1126 ysize = tv_mode->nbr_end + 1;
1127 else
1128 ysize = 2*tv_mode->nbr_end + 1;
1129
1130 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1131 ypos += intel_tv->margin[TV_MARGIN_TOP];
1132 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1133 intel_tv->margin[TV_MARGIN_RIGHT]);
1134 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1135 intel_tv->margin[TV_MARGIN_BOTTOM]);
1136 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1137 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1138
1139 j = 0;
1140 for (i = 0; i < 60; i++)
1141 I915_WRITE(TV_H_LUMA(i), tv_mode->filter_table[j++]);
1142 for (i = 0; i < 60; i++)
1143 I915_WRITE(TV_H_CHROMA(i), tv_mode->filter_table[j++]);
1144 for (i = 0; i < 43; i++)
1145 I915_WRITE(TV_V_LUMA(i), tv_mode->filter_table[j++]);
1146 for (i = 0; i < 43; i++)
1147 I915_WRITE(TV_V_CHROMA(i), tv_mode->filter_table[j++]);
1148 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1149 I915_WRITE(TV_CTL, tv_ctl);
1150 }
1151
1152 static const struct drm_display_mode reported_modes[] = {
1153 {
1154 .name = "NTSC 480i",
1155 .clock = 107520,
1156 .hdisplay = 1280,
1157 .hsync_start = 1368,
1158 .hsync_end = 1496,
1159 .htotal = 1712,
1160
1161 .vdisplay = 1024,
1162 .vsync_start = 1027,
1163 .vsync_end = 1034,
1164 .vtotal = 1104,
1165 .type = DRM_MODE_TYPE_DRIVER,
1166 },
1167 };
1168
1169 /**
1170 * Detects TV presence by checking for load.
1171 *
1172 * Requires that the current pipe's DPLL is active.
1173
1174 * \return true if TV is connected.
1175 * \return false if TV is disconnected.
1176 */
1177 static int
1178 intel_tv_detect_type(struct intel_tv *intel_tv,
1179 struct drm_connector *connector)
1180 {
1181 struct drm_encoder *encoder = &intel_tv->base.base;
1182 struct drm_crtc *crtc = encoder->crtc;
1183 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1184 struct drm_device *dev = encoder->dev;
1185 struct drm_i915_private *dev_priv = dev->dev_private;
1186 u32 tv_ctl, save_tv_ctl;
1187 u32 tv_dac, save_tv_dac;
1188 int type;
1189
1190 /* Disable TV interrupts around load detect or we'll recurse */
1191 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1192 spin_lock_irq(&dev_priv->irq_lock);
1193 i915_disable_pipestat(dev_priv, 0,
1194 PIPE_HOTPLUG_INTERRUPT_STATUS |
1195 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1196 spin_unlock_irq(&dev_priv->irq_lock);
1197 }
1198
1199 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1200 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1201
1202 /* Poll for TV detection */
1203 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1204 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1205 if (intel_crtc->pipe == 1)
1206 tv_ctl |= TV_ENC_PIPEB_SELECT;
1207 else
1208 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1209
1210 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1211 tv_dac |= (TVDAC_STATE_CHG_EN |
1212 TVDAC_A_SENSE_CTL |
1213 TVDAC_B_SENSE_CTL |
1214 TVDAC_C_SENSE_CTL |
1215 DAC_CTL_OVERRIDE |
1216 DAC_A_0_7_V |
1217 DAC_B_0_7_V |
1218 DAC_C_0_7_V);
1219
1220
1221 /*
1222 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1223 * the TV is misdetected. This is hardware requirement.
1224 */
1225 if (IS_GM45(dev))
1226 tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1227 TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1228
1229 I915_WRITE(TV_CTL, tv_ctl);
1230 I915_WRITE(TV_DAC, tv_dac);
1231 POSTING_READ(TV_DAC);
1232
1233 intel_wait_for_vblank(intel_tv->base.base.dev,
1234 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1235
1236 type = -1;
1237 tv_dac = I915_READ(TV_DAC);
1238 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1239 /*
1240 * A B C
1241 * 0 1 1 Composite
1242 * 1 0 X svideo
1243 * 0 0 0 Component
1244 */
1245 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1246 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1247 type = DRM_MODE_CONNECTOR_Composite;
1248 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1249 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1250 type = DRM_MODE_CONNECTOR_SVIDEO;
1251 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1252 DRM_DEBUG_KMS("Detected Component TV connection\n");
1253 type = DRM_MODE_CONNECTOR_Component;
1254 } else {
1255 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1256 type = -1;
1257 }
1258
1259 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1260 I915_WRITE(TV_CTL, save_tv_ctl);
1261 POSTING_READ(TV_CTL);
1262
1263 /* For unknown reasons the hw barfs if we don't do this vblank wait. */
1264 intel_wait_for_vblank(intel_tv->base.base.dev,
1265 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1266
1267 /* Restore interrupt config */
1268 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1269 spin_lock_irq(&dev_priv->irq_lock);
1270 i915_enable_pipestat(dev_priv, 0,
1271 PIPE_HOTPLUG_INTERRUPT_STATUS |
1272 PIPE_HOTPLUG_TV_INTERRUPT_STATUS);
1273 spin_unlock_irq(&dev_priv->irq_lock);
1274 }
1275
1276 return type;
1277 }
1278
1279 /*
1280 * Here we set accurate tv format according to connector type
1281 * i.e Component TV should not be assigned by NTSC or PAL
1282 */
1283 static void intel_tv_find_better_format(struct drm_connector *connector)
1284 {
1285 struct intel_tv *intel_tv = intel_attached_tv(connector);
1286 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1287 int i;
1288
1289 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1290 tv_mode->component_only)
1291 return;
1292
1293
1294 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
1295 tv_mode = tv_modes + i;
1296
1297 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1298 tv_mode->component_only)
1299 break;
1300 }
1301
1302 intel_tv->tv_format = tv_mode->name;
1303 drm_object_property_set_value(&connector->base,
1304 connector->dev->mode_config.tv_mode_property, i);
1305 }
1306
1307 /**
1308 * Detect the TV connection.
1309 *
1310 * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1311 * we have a pipe programmed in order to probe the TV.
1312 */
1313 static enum drm_connector_status
1314 intel_tv_detect(struct drm_connector *connector, bool force)
1315 {
1316 struct drm_display_mode mode;
1317 struct intel_tv *intel_tv = intel_attached_tv(connector);
1318 enum drm_connector_status status;
1319 int type;
1320
1321 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
1322 connector->base.id, connector->name,
1323 force);
1324
1325 mode = reported_modes[0];
1326
1327 if (force) {
1328 struct intel_load_detect_pipe tmp;
1329 struct drm_modeset_acquire_ctx ctx;
1330
1331 drm_modeset_acquire_init(&ctx, 0);
1332
1333 if (intel_get_load_detect_pipe(connector, &mode, &tmp, &ctx)) {
1334 type = intel_tv_detect_type(intel_tv, connector);
1335 intel_release_load_detect_pipe(connector, &tmp, &ctx);
1336 status = type < 0 ?
1337 connector_status_disconnected :
1338 connector_status_connected;
1339 } else
1340 status = connector_status_unknown;
1341
1342 drm_modeset_drop_locks(&ctx);
1343 drm_modeset_acquire_fini(&ctx);
1344 } else
1345 return connector->status;
1346
1347 if (status != connector_status_connected)
1348 return status;
1349
1350 intel_tv->type = type;
1351 intel_tv_find_better_format(connector);
1352
1353 return connector_status_connected;
1354 }
1355
1356 static const struct input_res {
1357 const char *name;
1358 int w, h;
1359 } input_res_table[] = {
1360 {"640x480", 640, 480},
1361 {"800x600", 800, 600},
1362 {"1024x768", 1024, 768},
1363 {"1280x1024", 1280, 1024},
1364 {"848x480", 848, 480},
1365 {"1280x720", 1280, 720},
1366 {"1920x1080", 1920, 1080},
1367 };
1368
1369 /*
1370 * Chose preferred mode according to line number of TV format
1371 */
1372 static void
1373 intel_tv_chose_preferred_modes(struct drm_connector *connector,
1374 struct drm_display_mode *mode_ptr)
1375 {
1376 struct intel_tv *intel_tv = intel_attached_tv(connector);
1377 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1378
1379 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1380 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1381 else if (tv_mode->nbr_end > 480) {
1382 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1383 if (mode_ptr->vdisplay == 720)
1384 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1385 } else if (mode_ptr->vdisplay == 1080)
1386 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1387 }
1388 }
1389
1390 /**
1391 * Stub get_modes function.
1392 *
1393 * This should probably return a set of fixed modes, unless we can figure out
1394 * how to probe modes off of TV connections.
1395 */
1396
1397 static int
1398 intel_tv_get_modes(struct drm_connector *connector)
1399 {
1400 struct drm_display_mode *mode_ptr;
1401 struct intel_tv *intel_tv = intel_attached_tv(connector);
1402 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1403 int j, count = 0;
1404 u64 tmp;
1405
1406 for (j = 0; j < ARRAY_SIZE(input_res_table);
1407 j++) {
1408 const struct input_res *input = &input_res_table[j];
1409 unsigned int hactive_s = input->w;
1410 unsigned int vactive_s = input->h;
1411
1412 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1413 continue;
1414
1415 if (input->w > 1024 && (!tv_mode->progressive
1416 && !tv_mode->component_only))
1417 continue;
1418
1419 mode_ptr = drm_mode_create(connector->dev);
1420 if (!mode_ptr)
1421 continue;
1422 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1423
1424 mode_ptr->hdisplay = hactive_s;
1425 mode_ptr->hsync_start = hactive_s + 1;
1426 mode_ptr->hsync_end = hactive_s + 64;
1427 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1428 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1429 mode_ptr->htotal = hactive_s + 96;
1430
1431 mode_ptr->vdisplay = vactive_s;
1432 mode_ptr->vsync_start = vactive_s + 1;
1433 mode_ptr->vsync_end = vactive_s + 32;
1434 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1435 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1436 mode_ptr->vtotal = vactive_s + 33;
1437
1438 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1439 tmp *= mode_ptr->htotal;
1440 tmp = div_u64(tmp, 1000000);
1441 mode_ptr->clock = (int) tmp;
1442
1443 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1444 intel_tv_chose_preferred_modes(connector, mode_ptr);
1445 drm_mode_probed_add(connector, mode_ptr);
1446 count++;
1447 }
1448
1449 return count;
1450 }
1451
1452 static void
1453 intel_tv_destroy(struct drm_connector *connector)
1454 {
1455 drm_connector_cleanup(connector);
1456 kfree(connector);
1457 }
1458
1459
1460 static int
1461 intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1462 uint64_t val)
1463 {
1464 struct drm_device *dev = connector->dev;
1465 struct intel_tv *intel_tv = intel_attached_tv(connector);
1466 struct drm_crtc *crtc = intel_tv->base.base.crtc;
1467 int ret = 0;
1468 bool changed = false;
1469
1470 ret = drm_object_property_set_value(&connector->base, property, val);
1471 if (ret < 0)
1472 goto out;
1473
1474 if (property == dev->mode_config.tv_left_margin_property &&
1475 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1476 intel_tv->margin[TV_MARGIN_LEFT] = val;
1477 changed = true;
1478 } else if (property == dev->mode_config.tv_right_margin_property &&
1479 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1480 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1481 changed = true;
1482 } else if (property == dev->mode_config.tv_top_margin_property &&
1483 intel_tv->margin[TV_MARGIN_TOP] != val) {
1484 intel_tv->margin[TV_MARGIN_TOP] = val;
1485 changed = true;
1486 } else if (property == dev->mode_config.tv_bottom_margin_property &&
1487 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1488 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1489 changed = true;
1490 } else if (property == dev->mode_config.tv_mode_property) {
1491 if (val >= ARRAY_SIZE(tv_modes)) {
1492 ret = -EINVAL;
1493 goto out;
1494 }
1495 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1496 goto out;
1497
1498 intel_tv->tv_format = tv_modes[val].name;
1499 changed = true;
1500 } else {
1501 ret = -EINVAL;
1502 goto out;
1503 }
1504
1505 if (changed && crtc)
1506 intel_crtc_restore_mode(crtc);
1507 out:
1508 return ret;
1509 }
1510
1511 static const struct drm_connector_funcs intel_tv_connector_funcs = {
1512 .dpms = drm_atomic_helper_connector_dpms,
1513 .detect = intel_tv_detect,
1514 .destroy = intel_tv_destroy,
1515 .set_property = intel_tv_set_property,
1516 .atomic_get_property = intel_connector_atomic_get_property,
1517 .fill_modes = drm_helper_probe_single_connector_modes,
1518 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1519 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1520 };
1521
1522 static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1523 .mode_valid = intel_tv_mode_valid,
1524 .get_modes = intel_tv_get_modes,
1525 .best_encoder = intel_best_encoder,
1526 };
1527
1528 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1529 .destroy = intel_encoder_destroy,
1530 };
1531
1532 /*
1533 * Enumerate the child dev array parsed from VBT to check whether
1534 * the integrated TV is present.
1535 * If it is present, return 1.
1536 * If it is not present, return false.
1537 * If no child dev is parsed from VBT, it assumes that the TV is present.
1538 */
1539 static int tv_is_present_in_vbt(struct drm_device *dev)
1540 {
1541 struct drm_i915_private *dev_priv = dev->dev_private;
1542 union child_device_config *p_child;
1543 int i, ret;
1544
1545 if (!dev_priv->vbt.child_dev_num)
1546 return 1;
1547
1548 ret = 0;
1549 for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
1550 p_child = dev_priv->vbt.child_dev + i;
1551 /*
1552 * If the device type is not TV, continue.
1553 */
1554 switch (p_child->old.device_type) {
1555 case DEVICE_TYPE_INT_TV:
1556 case DEVICE_TYPE_TV:
1557 case DEVICE_TYPE_TV_SVIDEO_COMPOSITE:
1558 break;
1559 default:
1560 continue;
1561 }
1562 /* Only when the addin_offset is non-zero, it is regarded
1563 * as present.
1564 */
1565 if (p_child->old.addin_offset) {
1566 ret = 1;
1567 break;
1568 }
1569 }
1570 return ret;
1571 }
1572
1573 void
1574 intel_tv_init(struct drm_device *dev)
1575 {
1576 struct drm_i915_private *dev_priv = dev->dev_private;
1577 struct drm_connector *connector;
1578 struct intel_tv *intel_tv;
1579 struct intel_encoder *intel_encoder;
1580 struct intel_connector *intel_connector;
1581 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1582 const char *tv_format_names[ARRAY_SIZE(tv_modes)];
1583 int i, initial_mode = 0;
1584
1585 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1586 return;
1587
1588 if (!tv_is_present_in_vbt(dev)) {
1589 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1590 return;
1591 }
1592 /* Even if we have an encoder we may not have a connector */
1593 if (!dev_priv->vbt.int_tv_support)
1594 return;
1595
1596 /*
1597 * Sanity check the TV output by checking to see if the
1598 * DAC register holds a value
1599 */
1600 save_tv_dac = I915_READ(TV_DAC);
1601
1602 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1603 tv_dac_on = I915_READ(TV_DAC);
1604
1605 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1606 tv_dac_off = I915_READ(TV_DAC);
1607
1608 I915_WRITE(TV_DAC, save_tv_dac);
1609
1610 /*
1611 * If the register does not hold the state change enable
1612 * bit, (either as a 0 or a 1), assume it doesn't really
1613 * exist
1614 */
1615 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1616 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1617 return;
1618
1619 intel_tv = kzalloc(sizeof(*intel_tv), GFP_KERNEL);
1620 if (!intel_tv) {
1621 return;
1622 }
1623
1624 intel_connector = intel_connector_alloc();
1625 if (!intel_connector) {
1626 kfree(intel_tv);
1627 return;
1628 }
1629
1630 intel_encoder = &intel_tv->base;
1631 connector = &intel_connector->base;
1632
1633 /* The documentation, for the older chipsets at least, recommend
1634 * using a polling method rather than hotplug detection for TVs.
1635 * This is because in order to perform the hotplug detection, the PLLs
1636 * for the TV must be kept alive increasing power drain and starving
1637 * bandwidth from other encoders. Notably for instance, it causes
1638 * pipe underruns on Crestline when this encoder is supposedly idle.
1639 *
1640 * More recent chipsets favour HDMI rather than integrated S-Video.
1641 */
1642 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1643
1644 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1645 DRM_MODE_CONNECTOR_SVIDEO);
1646
1647 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1648 DRM_MODE_ENCODER_TVDAC, NULL);
1649
1650 intel_encoder->compute_config = intel_tv_compute_config;
1651 intel_encoder->get_config = intel_tv_get_config;
1652 intel_encoder->pre_enable = intel_tv_pre_enable;
1653 intel_encoder->enable = intel_enable_tv;
1654 intel_encoder->disable = intel_disable_tv;
1655 intel_encoder->get_hw_state = intel_tv_get_hw_state;
1656 intel_connector->get_hw_state = intel_connector_get_hw_state;
1657 intel_connector->unregister = intel_connector_unregister;
1658
1659 intel_connector_attach_encoder(intel_connector, intel_encoder);
1660 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1661 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1662 intel_encoder->cloneable = 0;
1663 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1664 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1665
1666 /* BIOS margin values */
1667 intel_tv->margin[TV_MARGIN_LEFT] = 54;
1668 intel_tv->margin[TV_MARGIN_TOP] = 36;
1669 intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1670 intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1671
1672 intel_tv->tv_format = tv_modes[initial_mode].name;
1673
1674 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1675 connector->interlace_allowed = false;
1676 connector->doublescan_allowed = false;
1677
1678 /* Create TV properties then attach current values */
1679 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1680 tv_format_names[i] = tv_modes[i].name;
1681 drm_mode_create_tv_properties(dev,
1682 ARRAY_SIZE(tv_modes),
1683 tv_format_names);
1684
1685 drm_object_attach_property(&connector->base, dev->mode_config.tv_mode_property,
1686 initial_mode);
1687 drm_object_attach_property(&connector->base,
1688 dev->mode_config.tv_left_margin_property,
1689 intel_tv->margin[TV_MARGIN_LEFT]);
1690 drm_object_attach_property(&connector->base,
1691 dev->mode_config.tv_top_margin_property,
1692 intel_tv->margin[TV_MARGIN_TOP]);
1693 drm_object_attach_property(&connector->base,
1694 dev->mode_config.tv_right_margin_property,
1695 intel_tv->margin[TV_MARGIN_RIGHT]);
1696 drm_object_attach_property(&connector->base,
1697 dev->mode_config.tv_bottom_margin_property,
1698 intel_tv->margin[TV_MARGIN_BOTTOM]);
1699 drm_connector_register(connector);
1700 }
Linux kernel - Deliverables
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