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Merge tag 'drm-intel-next-2012-07-06' of git://people.freedesktop.org/~danvet/drm...
[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 "drmP.h"
34 #include "drm.h"
35 #include "drm_crtc.h"
36 #include "drm_edid.h"
37 #include "intel_drv.h"
38 #include "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_intel_tv(struct drm_encoder *encoder)
828 {
829 return container_of(encoder, struct intel_tv, base.base);
830 }
831
832 static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
833 {
834 return container_of(intel_attached_encoder(connector),
835 struct intel_tv,
836 base);
837 }
838
839 static void
840 intel_tv_dpms(struct drm_encoder *encoder, int mode)
841 {
842 struct drm_device *dev = encoder->dev;
843 struct drm_i915_private *dev_priv = dev->dev_private;
844
845 switch (mode) {
846 case DRM_MODE_DPMS_ON:
847 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
848 break;
849 case DRM_MODE_DPMS_STANDBY:
850 case DRM_MODE_DPMS_SUSPEND:
851 case DRM_MODE_DPMS_OFF:
852 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
853 break;
854 }
855 }
856
857 static const struct tv_mode *
858 intel_tv_mode_lookup(const char *tv_format)
859 {
860 int i;
861
862 for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
863 const struct tv_mode *tv_mode = &tv_modes[i];
864
865 if (!strcmp(tv_format, tv_mode->name))
866 return tv_mode;
867 }
868 return NULL;
869 }
870
871 static const struct tv_mode *
872 intel_tv_mode_find(struct intel_tv *intel_tv)
873 {
874 return intel_tv_mode_lookup(intel_tv->tv_format);
875 }
876
877 static enum drm_mode_status
878 intel_tv_mode_valid(struct drm_connector *connector,
879 struct drm_display_mode *mode)
880 {
881 struct intel_tv *intel_tv = intel_attached_tv(connector);
882 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
883
884 /* Ensure TV refresh is close to desired refresh */
885 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
886 < 1000)
887 return MODE_OK;
888
889 return MODE_CLOCK_RANGE;
890 }
891
892
893 static bool
894 intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
895 struct drm_display_mode *adjusted_mode)
896 {
897 struct drm_device *dev = encoder->dev;
898 struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
899 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
900 struct intel_encoder *other_encoder;
901
902 if (!tv_mode)
903 return false;
904
905 for_each_encoder_on_crtc(dev, encoder->crtc, other_encoder)
906 if (&other_encoder->base != encoder)
907 return false;
908
909 adjusted_mode->clock = tv_mode->clock;
910 return true;
911 }
912
913 static void
914 intel_tv_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
915 struct drm_display_mode *adjusted_mode)
916 {
917 struct drm_device *dev = encoder->dev;
918 struct drm_i915_private *dev_priv = dev->dev_private;
919 struct drm_crtc *crtc = encoder->crtc;
920 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
921 struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
922 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
923 u32 tv_ctl;
924 u32 hctl1, hctl2, hctl3;
925 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
926 u32 scctl1, scctl2, scctl3;
927 int i, j;
928 const struct video_levels *video_levels;
929 const struct color_conversion *color_conversion;
930 bool burst_ena;
931 int pipe = intel_crtc->pipe;
932
933 if (!tv_mode)
934 return; /* can't happen (mode_prepare prevents this) */
935
936 tv_ctl = I915_READ(TV_CTL);
937 tv_ctl &= TV_CTL_SAVE;
938
939 switch (intel_tv->type) {
940 default:
941 case DRM_MODE_CONNECTOR_Unknown:
942 case DRM_MODE_CONNECTOR_Composite:
943 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
944 video_levels = tv_mode->composite_levels;
945 color_conversion = tv_mode->composite_color;
946 burst_ena = tv_mode->burst_ena;
947 break;
948 case DRM_MODE_CONNECTOR_Component:
949 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
950 video_levels = &component_levels;
951 if (tv_mode->burst_ena)
952 color_conversion = &sdtv_csc_yprpb;
953 else
954 color_conversion = &hdtv_csc_yprpb;
955 burst_ena = false;
956 break;
957 case DRM_MODE_CONNECTOR_SVIDEO:
958 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
959 video_levels = tv_mode->svideo_levels;
960 color_conversion = tv_mode->svideo_color;
961 burst_ena = tv_mode->burst_ena;
962 break;
963 }
964 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
965 (tv_mode->htotal << TV_HTOTAL_SHIFT);
966
967 hctl2 = (tv_mode->hburst_start << 16) |
968 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
969
970 if (burst_ena)
971 hctl2 |= TV_BURST_ENA;
972
973 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
974 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
975
976 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
977 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
978 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
979
980 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
981 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
982 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
983
984 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
985 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
986 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
987
988 if (tv_mode->veq_ena)
989 vctl3 |= TV_EQUAL_ENA;
990
991 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
992 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
993
994 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
995 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
996
997 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
998 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
999
1000 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
1001 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
1002
1003 if (intel_crtc->pipe == 1)
1004 tv_ctl |= TV_ENC_PIPEB_SELECT;
1005 tv_ctl |= tv_mode->oversample;
1006
1007 if (tv_mode->progressive)
1008 tv_ctl |= TV_PROGRESSIVE;
1009 if (tv_mode->trilevel_sync)
1010 tv_ctl |= TV_TRILEVEL_SYNC;
1011 if (tv_mode->pal_burst)
1012 tv_ctl |= TV_PAL_BURST;
1013
1014 scctl1 = 0;
1015 if (tv_mode->dda1_inc)
1016 scctl1 |= TV_SC_DDA1_EN;
1017 if (tv_mode->dda2_inc)
1018 scctl1 |= TV_SC_DDA2_EN;
1019 if (tv_mode->dda3_inc)
1020 scctl1 |= TV_SC_DDA3_EN;
1021 scctl1 |= tv_mode->sc_reset;
1022 if (video_levels)
1023 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
1024 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
1025
1026 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
1027 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
1028
1029 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
1030 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
1031
1032 /* Enable two fixes for the chips that need them. */
1033 if (dev->pci_device < 0x2772)
1034 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
1035
1036 I915_WRITE(TV_H_CTL_1, hctl1);
1037 I915_WRITE(TV_H_CTL_2, hctl2);
1038 I915_WRITE(TV_H_CTL_3, hctl3);
1039 I915_WRITE(TV_V_CTL_1, vctl1);
1040 I915_WRITE(TV_V_CTL_2, vctl2);
1041 I915_WRITE(TV_V_CTL_3, vctl3);
1042 I915_WRITE(TV_V_CTL_4, vctl4);
1043 I915_WRITE(TV_V_CTL_5, vctl5);
1044 I915_WRITE(TV_V_CTL_6, vctl6);
1045 I915_WRITE(TV_V_CTL_7, vctl7);
1046 I915_WRITE(TV_SC_CTL_1, scctl1);
1047 I915_WRITE(TV_SC_CTL_2, scctl2);
1048 I915_WRITE(TV_SC_CTL_3, scctl3);
1049
1050 if (color_conversion) {
1051 I915_WRITE(TV_CSC_Y, (color_conversion->ry << 16) |
1052 color_conversion->gy);
1053 I915_WRITE(TV_CSC_Y2, (color_conversion->by << 16) |
1054 color_conversion->ay);
1055 I915_WRITE(TV_CSC_U, (color_conversion->ru << 16) |
1056 color_conversion->gu);
1057 I915_WRITE(TV_CSC_U2, (color_conversion->bu << 16) |
1058 color_conversion->au);
1059 I915_WRITE(TV_CSC_V, (color_conversion->rv << 16) |
1060 color_conversion->gv);
1061 I915_WRITE(TV_CSC_V2, (color_conversion->bv << 16) |
1062 color_conversion->av);
1063 }
1064
1065 if (INTEL_INFO(dev)->gen >= 4)
1066 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1067 else
1068 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1069
1070 if (video_levels)
1071 I915_WRITE(TV_CLR_LEVEL,
1072 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1073 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1074 {
1075 int pipeconf_reg = PIPECONF(pipe);
1076 int dspcntr_reg = DSPCNTR(intel_crtc->plane);
1077 int pipeconf = I915_READ(pipeconf_reg);
1078 int dspcntr = I915_READ(dspcntr_reg);
1079 int dspbase_reg = DSPADDR(intel_crtc->plane);
1080 int xpos = 0x0, ypos = 0x0;
1081 unsigned int xsize, ysize;
1082 /* Pipe must be off here */
1083 I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
1084 /* Flush the plane changes */
1085 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1086
1087 /* Wait for vblank for the disable to take effect */
1088 if (IS_GEN2(dev))
1089 intel_wait_for_vblank(dev, intel_crtc->pipe);
1090
1091 I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
1092 /* Wait for vblank for the disable to take effect. */
1093 intel_wait_for_pipe_off(dev, intel_crtc->pipe);
1094
1095 /* Filter ctl must be set before TV_WIN_SIZE */
1096 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1097 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1098 if (tv_mode->progressive)
1099 ysize = tv_mode->nbr_end + 1;
1100 else
1101 ysize = 2*tv_mode->nbr_end + 1;
1102
1103 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1104 ypos += intel_tv->margin[TV_MARGIN_TOP];
1105 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1106 intel_tv->margin[TV_MARGIN_RIGHT]);
1107 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1108 intel_tv->margin[TV_MARGIN_BOTTOM]);
1109 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1110 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1111
1112 I915_WRITE(pipeconf_reg, pipeconf);
1113 I915_WRITE(dspcntr_reg, dspcntr);
1114 /* Flush the plane changes */
1115 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1116 }
1117
1118 j = 0;
1119 for (i = 0; i < 60; i++)
1120 I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1121 for (i = 0; i < 60; i++)
1122 I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1123 for (i = 0; i < 43; i++)
1124 I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1125 for (i = 0; i < 43; i++)
1126 I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1127 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1128 I915_WRITE(TV_CTL, tv_ctl);
1129 }
1130
1131 static const struct drm_display_mode reported_modes[] = {
1132 {
1133 .name = "NTSC 480i",
1134 .clock = 107520,
1135 .hdisplay = 1280,
1136 .hsync_start = 1368,
1137 .hsync_end = 1496,
1138 .htotal = 1712,
1139
1140 .vdisplay = 1024,
1141 .vsync_start = 1027,
1142 .vsync_end = 1034,
1143 .vtotal = 1104,
1144 .type = DRM_MODE_TYPE_DRIVER,
1145 },
1146 };
1147
1148 /**
1149 * Detects TV presence by checking for load.
1150 *
1151 * Requires that the current pipe's DPLL is active.
1152
1153 * \return true if TV is connected.
1154 * \return false if TV is disconnected.
1155 */
1156 static int
1157 intel_tv_detect_type(struct intel_tv *intel_tv,
1158 struct drm_connector *connector)
1159 {
1160 struct drm_encoder *encoder = &intel_tv->base.base;
1161 struct drm_crtc *crtc = encoder->crtc;
1162 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1163 struct drm_device *dev = encoder->dev;
1164 struct drm_i915_private *dev_priv = dev->dev_private;
1165 unsigned long irqflags;
1166 u32 tv_ctl, save_tv_ctl;
1167 u32 tv_dac, save_tv_dac;
1168 int type;
1169
1170 /* Disable TV interrupts around load detect or we'll recurse */
1171 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1172 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1173 i915_disable_pipestat(dev_priv, 0,
1174 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1175 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1176 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1177 }
1178
1179 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1180 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1181
1182 /* Poll for TV detection */
1183 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1184 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1185 if (intel_crtc->pipe == 1)
1186 tv_ctl |= TV_ENC_PIPEB_SELECT;
1187 else
1188 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1189
1190 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1191 tv_dac |= (TVDAC_STATE_CHG_EN |
1192 TVDAC_A_SENSE_CTL |
1193 TVDAC_B_SENSE_CTL |
1194 TVDAC_C_SENSE_CTL |
1195 DAC_CTL_OVERRIDE |
1196 DAC_A_0_7_V |
1197 DAC_B_0_7_V |
1198 DAC_C_0_7_V);
1199
1200
1201 /*
1202 * The TV sense state should be cleared to zero on cantiga platform. Otherwise
1203 * the TV is misdetected. This is hardware requirement.
1204 */
1205 if (IS_GM45(dev))
1206 tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
1207 TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
1208
1209 I915_WRITE(TV_CTL, tv_ctl);
1210 I915_WRITE(TV_DAC, tv_dac);
1211 POSTING_READ(TV_DAC);
1212
1213 intel_wait_for_vblank(intel_tv->base.base.dev,
1214 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1215
1216 type = -1;
1217 tv_dac = I915_READ(TV_DAC);
1218 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1219 /*
1220 * A B C
1221 * 0 1 1 Composite
1222 * 1 0 X svideo
1223 * 0 0 0 Component
1224 */
1225 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1226 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1227 type = DRM_MODE_CONNECTOR_Composite;
1228 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1229 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1230 type = DRM_MODE_CONNECTOR_SVIDEO;
1231 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1232 DRM_DEBUG_KMS("Detected Component TV connection\n");
1233 type = DRM_MODE_CONNECTOR_Component;
1234 } else {
1235 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1236 type = -1;
1237 }
1238
1239 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1240 I915_WRITE(TV_CTL, save_tv_ctl);
1241 POSTING_READ(TV_CTL);
1242
1243 /* For unknown reasons the hw barfs if we don't do this vblank wait. */
1244 intel_wait_for_vblank(intel_tv->base.base.dev,
1245 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1246
1247 /* Restore interrupt config */
1248 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1249 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1250 i915_enable_pipestat(dev_priv, 0,
1251 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1252 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1253 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1254 }
1255
1256 return type;
1257 }
1258
1259 /*
1260 * Here we set accurate tv format according to connector type
1261 * i.e Component TV should not be assigned by NTSC or PAL
1262 */
1263 static void intel_tv_find_better_format(struct drm_connector *connector)
1264 {
1265 struct intel_tv *intel_tv = intel_attached_tv(connector);
1266 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1267 int i;
1268
1269 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1270 tv_mode->component_only)
1271 return;
1272
1273
1274 for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
1275 tv_mode = tv_modes + i;
1276
1277 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1278 tv_mode->component_only)
1279 break;
1280 }
1281
1282 intel_tv->tv_format = tv_mode->name;
1283 drm_connector_property_set_value(connector,
1284 connector->dev->mode_config.tv_mode_property, i);
1285 }
1286
1287 /**
1288 * Detect the TV connection.
1289 *
1290 * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1291 * we have a pipe programmed in order to probe the TV.
1292 */
1293 static enum drm_connector_status
1294 intel_tv_detect(struct drm_connector *connector, bool force)
1295 {
1296 struct drm_display_mode mode;
1297 struct intel_tv *intel_tv = intel_attached_tv(connector);
1298 int type;
1299
1300 mode = reported_modes[0];
1301
1302 if (force) {
1303 struct intel_load_detect_pipe tmp;
1304
1305 if (intel_get_load_detect_pipe(&intel_tv->base, connector,
1306 &mode, &tmp)) {
1307 type = intel_tv_detect_type(intel_tv, connector);
1308 intel_release_load_detect_pipe(&intel_tv->base,
1309 connector,
1310 &tmp);
1311 } else
1312 return connector_status_unknown;
1313 } else
1314 return connector->status;
1315
1316 if (type < 0)
1317 return connector_status_disconnected;
1318
1319 intel_tv->type = type;
1320 intel_tv_find_better_format(connector);
1321
1322 return connector_status_connected;
1323 }
1324
1325 static const struct input_res {
1326 const char *name;
1327 int w, h;
1328 } input_res_table[] = {
1329 {"640x480", 640, 480},
1330 {"800x600", 800, 600},
1331 {"1024x768", 1024, 768},
1332 {"1280x1024", 1280, 1024},
1333 {"848x480", 848, 480},
1334 {"1280x720", 1280, 720},
1335 {"1920x1080", 1920, 1080},
1336 };
1337
1338 /*
1339 * Chose preferred mode according to line number of TV format
1340 */
1341 static void
1342 intel_tv_chose_preferred_modes(struct drm_connector *connector,
1343 struct drm_display_mode *mode_ptr)
1344 {
1345 struct intel_tv *intel_tv = intel_attached_tv(connector);
1346 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1347
1348 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1349 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1350 else if (tv_mode->nbr_end > 480) {
1351 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1352 if (mode_ptr->vdisplay == 720)
1353 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1354 } else if (mode_ptr->vdisplay == 1080)
1355 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1356 }
1357 }
1358
1359 /**
1360 * Stub get_modes function.
1361 *
1362 * This should probably return a set of fixed modes, unless we can figure out
1363 * how to probe modes off of TV connections.
1364 */
1365
1366 static int
1367 intel_tv_get_modes(struct drm_connector *connector)
1368 {
1369 struct drm_display_mode *mode_ptr;
1370 struct intel_tv *intel_tv = intel_attached_tv(connector);
1371 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1372 int j, count = 0;
1373 u64 tmp;
1374
1375 for (j = 0; j < ARRAY_SIZE(input_res_table);
1376 j++) {
1377 const struct input_res *input = &input_res_table[j];
1378 unsigned int hactive_s = input->w;
1379 unsigned int vactive_s = input->h;
1380
1381 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1382 continue;
1383
1384 if (input->w > 1024 && (!tv_mode->progressive
1385 && !tv_mode->component_only))
1386 continue;
1387
1388 mode_ptr = drm_mode_create(connector->dev);
1389 if (!mode_ptr)
1390 continue;
1391 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1392
1393 mode_ptr->hdisplay = hactive_s;
1394 mode_ptr->hsync_start = hactive_s + 1;
1395 mode_ptr->hsync_end = hactive_s + 64;
1396 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1397 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1398 mode_ptr->htotal = hactive_s + 96;
1399
1400 mode_ptr->vdisplay = vactive_s;
1401 mode_ptr->vsync_start = vactive_s + 1;
1402 mode_ptr->vsync_end = vactive_s + 32;
1403 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1404 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1405 mode_ptr->vtotal = vactive_s + 33;
1406
1407 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1408 tmp *= mode_ptr->htotal;
1409 tmp = div_u64(tmp, 1000000);
1410 mode_ptr->clock = (int) tmp;
1411
1412 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1413 intel_tv_chose_preferred_modes(connector, mode_ptr);
1414 drm_mode_probed_add(connector, mode_ptr);
1415 count++;
1416 }
1417
1418 return count;
1419 }
1420
1421 static void
1422 intel_tv_destroy(struct drm_connector *connector)
1423 {
1424 drm_sysfs_connector_remove(connector);
1425 drm_connector_cleanup(connector);
1426 kfree(connector);
1427 }
1428
1429
1430 static int
1431 intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1432 uint64_t val)
1433 {
1434 struct drm_device *dev = connector->dev;
1435 struct intel_tv *intel_tv = intel_attached_tv(connector);
1436 struct drm_crtc *crtc = intel_tv->base.base.crtc;
1437 int ret = 0;
1438 bool changed = false;
1439
1440 ret = drm_connector_property_set_value(connector, property, val);
1441 if (ret < 0)
1442 goto out;
1443
1444 if (property == dev->mode_config.tv_left_margin_property &&
1445 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1446 intel_tv->margin[TV_MARGIN_LEFT] = val;
1447 changed = true;
1448 } else if (property == dev->mode_config.tv_right_margin_property &&
1449 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1450 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1451 changed = true;
1452 } else if (property == dev->mode_config.tv_top_margin_property &&
1453 intel_tv->margin[TV_MARGIN_TOP] != val) {
1454 intel_tv->margin[TV_MARGIN_TOP] = val;
1455 changed = true;
1456 } else if (property == dev->mode_config.tv_bottom_margin_property &&
1457 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1458 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1459 changed = true;
1460 } else if (property == dev->mode_config.tv_mode_property) {
1461 if (val >= ARRAY_SIZE(tv_modes)) {
1462 ret = -EINVAL;
1463 goto out;
1464 }
1465 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1466 goto out;
1467
1468 intel_tv->tv_format = tv_modes[val].name;
1469 changed = true;
1470 } else {
1471 ret = -EINVAL;
1472 goto out;
1473 }
1474
1475 if (changed && crtc)
1476 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1477 crtc->y, crtc->fb);
1478 out:
1479 return ret;
1480 }
1481
1482 static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = {
1483 .dpms = intel_tv_dpms,
1484 .mode_fixup = intel_tv_mode_fixup,
1485 .prepare = intel_encoder_prepare,
1486 .mode_set = intel_tv_mode_set,
1487 .commit = intel_encoder_commit,
1488 };
1489
1490 static const struct drm_connector_funcs intel_tv_connector_funcs = {
1491 .dpms = drm_helper_connector_dpms,
1492 .detect = intel_tv_detect,
1493 .destroy = intel_tv_destroy,
1494 .set_property = intel_tv_set_property,
1495 .fill_modes = drm_helper_probe_single_connector_modes,
1496 };
1497
1498 static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1499 .mode_valid = intel_tv_mode_valid,
1500 .get_modes = intel_tv_get_modes,
1501 .best_encoder = intel_best_encoder,
1502 };
1503
1504 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1505 .destroy = intel_encoder_destroy,
1506 };
1507
1508 /*
1509 * Enumerate the child dev array parsed from VBT to check whether
1510 * the integrated TV is present.
1511 * If it is present, return 1.
1512 * If it is not present, return false.
1513 * If no child dev is parsed from VBT, it assumes that the TV is present.
1514 */
1515 static int tv_is_present_in_vbt(struct drm_device *dev)
1516 {
1517 struct drm_i915_private *dev_priv = dev->dev_private;
1518 struct child_device_config *p_child;
1519 int i, ret;
1520
1521 if (!dev_priv->child_dev_num)
1522 return 1;
1523
1524 ret = 0;
1525 for (i = 0; i < dev_priv->child_dev_num; i++) {
1526 p_child = dev_priv->child_dev + i;
1527 /*
1528 * If the device type is not TV, continue.
1529 */
1530 if (p_child->device_type != DEVICE_TYPE_INT_TV &&
1531 p_child->device_type != DEVICE_TYPE_TV)
1532 continue;
1533 /* Only when the addin_offset is non-zero, it is regarded
1534 * as present.
1535 */
1536 if (p_child->addin_offset) {
1537 ret = 1;
1538 break;
1539 }
1540 }
1541 return ret;
1542 }
1543
1544 void
1545 intel_tv_init(struct drm_device *dev)
1546 {
1547 struct drm_i915_private *dev_priv = dev->dev_private;
1548 struct drm_connector *connector;
1549 struct intel_tv *intel_tv;
1550 struct intel_encoder *intel_encoder;
1551 struct intel_connector *intel_connector;
1552 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1553 char *tv_format_names[ARRAY_SIZE(tv_modes)];
1554 int i, initial_mode = 0;
1555
1556 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1557 return;
1558
1559 if (!tv_is_present_in_vbt(dev)) {
1560 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1561 return;
1562 }
1563 /* Even if we have an encoder we may not have a connector */
1564 if (!dev_priv->int_tv_support)
1565 return;
1566
1567 /*
1568 * Sanity check the TV output by checking to see if the
1569 * DAC register holds a value
1570 */
1571 save_tv_dac = I915_READ(TV_DAC);
1572
1573 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1574 tv_dac_on = I915_READ(TV_DAC);
1575
1576 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1577 tv_dac_off = I915_READ(TV_DAC);
1578
1579 I915_WRITE(TV_DAC, save_tv_dac);
1580
1581 /*
1582 * If the register does not hold the state change enable
1583 * bit, (either as a 0 or a 1), assume it doesn't really
1584 * exist
1585 */
1586 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1587 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1588 return;
1589
1590 intel_tv = kzalloc(sizeof(struct intel_tv), GFP_KERNEL);
1591 if (!intel_tv) {
1592 return;
1593 }
1594
1595 intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
1596 if (!intel_connector) {
1597 kfree(intel_tv);
1598 return;
1599 }
1600
1601 intel_encoder = &intel_tv->base;
1602 connector = &intel_connector->base;
1603
1604 /* The documentation, for the older chipsets at least, recommend
1605 * using a polling method rather than hotplug detection for TVs.
1606 * This is because in order to perform the hotplug detection, the PLLs
1607 * for the TV must be kept alive increasing power drain and starving
1608 * bandwidth from other encoders. Notably for instance, it causes
1609 * pipe underruns on Crestline when this encoder is supposedly idle.
1610 *
1611 * More recent chipsets favour HDMI rather than integrated S-Video.
1612 */
1613 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1614
1615 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1616 DRM_MODE_CONNECTOR_SVIDEO);
1617
1618 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1619 DRM_MODE_ENCODER_TVDAC);
1620
1621 intel_connector_attach_encoder(intel_connector, intel_encoder);
1622 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1623 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1624 intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
1625 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1626 intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
1627 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1628
1629 /* BIOS margin values */
1630 intel_tv->margin[TV_MARGIN_LEFT] = 54;
1631 intel_tv->margin[TV_MARGIN_TOP] = 36;
1632 intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1633 intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1634
1635 intel_tv->tv_format = tv_modes[initial_mode].name;
1636
1637 drm_encoder_helper_add(&intel_encoder->base, &intel_tv_helper_funcs);
1638 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1639 connector->interlace_allowed = false;
1640 connector->doublescan_allowed = false;
1641
1642 /* Create TV properties then attach current values */
1643 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1644 tv_format_names[i] = (char *)tv_modes[i].name;
1645 drm_mode_create_tv_properties(dev,
1646 ARRAY_SIZE(tv_modes),
1647 tv_format_names);
1648
1649 drm_connector_attach_property(connector, dev->mode_config.tv_mode_property,
1650 initial_mode);
1651 drm_connector_attach_property(connector,
1652 dev->mode_config.tv_left_margin_property,
1653 intel_tv->margin[TV_MARGIN_LEFT]);
1654 drm_connector_attach_property(connector,
1655 dev->mode_config.tv_top_margin_property,
1656 intel_tv->margin[TV_MARGIN_TOP]);
1657 drm_connector_attach_property(connector,
1658 dev->mode_config.tv_right_margin_property,
1659 intel_tv->margin[TV_MARGIN_RIGHT]);
1660 drm_connector_attach_property(connector,
1661 dev->mode_config.tv_bottom_margin_property,
1662 intel_tv->margin[TV_MARGIN_BOTTOM]);
1663 drm_sysfs_connector_add(connector);
1664 }
Linux kernel - Deliverables
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