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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / gpu / drm / i915 / intel_tv.c
blob1571be37ce3e36b1089994a3454c4a23f8a733e6
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 = "720p@60Hz",
678 .clock = 148800,
679 .refresh = 60000,
680 .oversample = TV_OVERSAMPLE_2X,
681 .component_only = 1,
682
683 .hsync_end = 80, .hblank_end = 300,
684 .hblank_start = 1580, .htotal = 1649,
685
686 .progressive = true, .trilevel_sync = true,
687
688 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
689 .vsync_len = 10,
690
691 .veq_ena = false,
692
693 .vi_end_f1 = 29, .vi_end_f2 = 29,
694 .nbr_end = 719,
695
696 .burst_ena = false,
697
698 .filter_table = filter_table,
699 },
700 {
701 .name = "720p@50Hz",
702 .clock = 148800,
703 .refresh = 50000,
704 .oversample = TV_OVERSAMPLE_2X,
705 .component_only = 1,
706
707 .hsync_end = 80, .hblank_end = 300,
708 .hblank_start = 1580, .htotal = 1979,
709
710 .progressive = true, .trilevel_sync = true,
711
712 .vsync_start_f1 = 10, .vsync_start_f2 = 10,
713 .vsync_len = 10,
714
715 .veq_ena = false,
716
717 .vi_end_f1 = 29, .vi_end_f2 = 29,
718 .nbr_end = 719,
719
720 .burst_ena = false,
721
722 .filter_table = filter_table,
723 .max_srcw = 800
724 },
725 {
726 .name = "1080i@50Hz",
727 .clock = 148800,
728 .refresh = 50000,
729 .oversample = TV_OVERSAMPLE_2X,
730 .component_only = 1,
731
732 .hsync_end = 88, .hblank_end = 235,
733 .hblank_start = 2155, .htotal = 2639,
734
735 .progressive = false, .trilevel_sync = true,
736
737 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
738 .vsync_len = 10,
739
740 .veq_ena = true, .veq_start_f1 = 4,
741 .veq_start_f2 = 4, .veq_len = 10,
742
743
744 .vi_end_f1 = 21, .vi_end_f2 = 22,
745 .nbr_end = 539,
746
747 .burst_ena = false,
748
749 .filter_table = filter_table,
750 },
751 {
752 .name = "1080i@60Hz",
753 .clock = 148800,
754 .refresh = 60000,
755 .oversample = TV_OVERSAMPLE_2X,
756 .component_only = 1,
757
758 .hsync_end = 88, .hblank_end = 235,
759 .hblank_start = 2155, .htotal = 2199,
760
761 .progressive = false, .trilevel_sync = true,
762
763 .vsync_start_f1 = 4, .vsync_start_f2 = 5,
764 .vsync_len = 10,
765
766 .veq_ena = true, .veq_start_f1 = 4,
767 .veq_start_f2 = 4, .veq_len = 10,
768
769
770 .vi_end_f1 = 21, .vi_end_f2 = 22,
771 .nbr_end = 539,
772
773 .burst_ena = false,
774
775 .filter_table = filter_table,
776 },
777 };
778
779 static struct intel_tv *enc_to_intel_tv(struct drm_encoder *encoder)
780 {
781 return container_of(encoder, struct intel_tv, base.base);
782 }
783
784 static struct intel_tv *intel_attached_tv(struct drm_connector *connector)
785 {
786 return container_of(intel_attached_encoder(connector),
787 struct intel_tv,
788 base);
789 }
790
791 static void
792 intel_tv_dpms(struct drm_encoder *encoder, int mode)
793 {
794 struct drm_device *dev = encoder->dev;
795 struct drm_i915_private *dev_priv = dev->dev_private;
796
797 switch (mode) {
798 case DRM_MODE_DPMS_ON:
799 I915_WRITE(TV_CTL, I915_READ(TV_CTL) | TV_ENC_ENABLE);
800 break;
801 case DRM_MODE_DPMS_STANDBY:
802 case DRM_MODE_DPMS_SUSPEND:
803 case DRM_MODE_DPMS_OFF:
804 I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
805 break;
806 }
807 }
808
809 static const struct tv_mode *
810 intel_tv_mode_lookup(const char *tv_format)
811 {
812 int i;
813
814 for (i = 0; i < sizeof(tv_modes) / sizeof(tv_modes[0]); i++) {
815 const struct tv_mode *tv_mode = &tv_modes[i];
816
817 if (!strcmp(tv_format, tv_mode->name))
818 return tv_mode;
819 }
820 return NULL;
821 }
822
823 static const struct tv_mode *
824 intel_tv_mode_find(struct intel_tv *intel_tv)
825 {
826 return intel_tv_mode_lookup(intel_tv->tv_format);
827 }
828
829 static enum drm_mode_status
830 intel_tv_mode_valid(struct drm_connector *connector,
831 struct drm_display_mode *mode)
832 {
833 struct intel_tv *intel_tv = intel_attached_tv(connector);
834 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
835
836 /* Ensure TV refresh is close to desired refresh */
837 if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
838 < 1000)
839 return MODE_OK;
840
841 return MODE_CLOCK_RANGE;
842 }
843
844
845 static bool
846 intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
847 struct drm_display_mode *adjusted_mode)
848 {
849 struct drm_device *dev = encoder->dev;
850 struct drm_mode_config *drm_config = &dev->mode_config;
851 struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
852 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
853 struct drm_encoder *other_encoder;
854
855 if (!tv_mode)
856 return false;
857
858 /* FIXME: lock encoder list */
859 list_for_each_entry(other_encoder, &drm_config->encoder_list, head) {
860 if (other_encoder != encoder &&
861 other_encoder->crtc == encoder->crtc)
862 return false;
863 }
864
865 adjusted_mode->clock = tv_mode->clock;
866 return true;
867 }
868
869 static void
870 intel_tv_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
871 struct drm_display_mode *adjusted_mode)
872 {
873 struct drm_device *dev = encoder->dev;
874 struct drm_i915_private *dev_priv = dev->dev_private;
875 struct drm_crtc *crtc = encoder->crtc;
876 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
877 struct intel_tv *intel_tv = enc_to_intel_tv(encoder);
878 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
879 u32 tv_ctl;
880 u32 hctl1, hctl2, hctl3;
881 u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
882 u32 scctl1, scctl2, scctl3;
883 int i, j;
884 const struct video_levels *video_levels;
885 const struct color_conversion *color_conversion;
886 bool burst_ena;
887 int pipe = intel_crtc->pipe;
888
889 if (!tv_mode)
890 return; /* can't happen (mode_prepare prevents this) */
891
892 tv_ctl = I915_READ(TV_CTL);
893 tv_ctl &= TV_CTL_SAVE;
894
895 switch (intel_tv->type) {
896 default:
897 case DRM_MODE_CONNECTOR_Unknown:
898 case DRM_MODE_CONNECTOR_Composite:
899 tv_ctl |= TV_ENC_OUTPUT_COMPOSITE;
900 video_levels = tv_mode->composite_levels;
901 color_conversion = tv_mode->composite_color;
902 burst_ena = tv_mode->burst_ena;
903 break;
904 case DRM_MODE_CONNECTOR_Component:
905 tv_ctl |= TV_ENC_OUTPUT_COMPONENT;
906 video_levels = &component_levels;
907 if (tv_mode->burst_ena)
908 color_conversion = &sdtv_csc_yprpb;
909 else
910 color_conversion = &hdtv_csc_yprpb;
911 burst_ena = false;
912 break;
913 case DRM_MODE_CONNECTOR_SVIDEO:
914 tv_ctl |= TV_ENC_OUTPUT_SVIDEO;
915 video_levels = tv_mode->svideo_levels;
916 color_conversion = tv_mode->svideo_color;
917 burst_ena = tv_mode->burst_ena;
918 break;
919 }
920 hctl1 = (tv_mode->hsync_end << TV_HSYNC_END_SHIFT) |
921 (tv_mode->htotal << TV_HTOTAL_SHIFT);
922
923 hctl2 = (tv_mode->hburst_start << 16) |
924 (tv_mode->hburst_len << TV_HBURST_LEN_SHIFT);
925
926 if (burst_ena)
927 hctl2 |= TV_BURST_ENA;
928
929 hctl3 = (tv_mode->hblank_start << TV_HBLANK_START_SHIFT) |
930 (tv_mode->hblank_end << TV_HBLANK_END_SHIFT);
931
932 vctl1 = (tv_mode->nbr_end << TV_NBR_END_SHIFT) |
933 (tv_mode->vi_end_f1 << TV_VI_END_F1_SHIFT) |
934 (tv_mode->vi_end_f2 << TV_VI_END_F2_SHIFT);
935
936 vctl2 = (tv_mode->vsync_len << TV_VSYNC_LEN_SHIFT) |
937 (tv_mode->vsync_start_f1 << TV_VSYNC_START_F1_SHIFT) |
938 (tv_mode->vsync_start_f2 << TV_VSYNC_START_F2_SHIFT);
939
940 vctl3 = (tv_mode->veq_len << TV_VEQ_LEN_SHIFT) |
941 (tv_mode->veq_start_f1 << TV_VEQ_START_F1_SHIFT) |
942 (tv_mode->veq_start_f2 << TV_VEQ_START_F2_SHIFT);
943
944 if (tv_mode->veq_ena)
945 vctl3 |= TV_EQUAL_ENA;
946
947 vctl4 = (tv_mode->vburst_start_f1 << TV_VBURST_START_F1_SHIFT) |
948 (tv_mode->vburst_end_f1 << TV_VBURST_END_F1_SHIFT);
949
950 vctl5 = (tv_mode->vburst_start_f2 << TV_VBURST_START_F2_SHIFT) |
951 (tv_mode->vburst_end_f2 << TV_VBURST_END_F2_SHIFT);
952
953 vctl6 = (tv_mode->vburst_start_f3 << TV_VBURST_START_F3_SHIFT) |
954 (tv_mode->vburst_end_f3 << TV_VBURST_END_F3_SHIFT);
955
956 vctl7 = (tv_mode->vburst_start_f4 << TV_VBURST_START_F4_SHIFT) |
957 (tv_mode->vburst_end_f4 << TV_VBURST_END_F4_SHIFT);
958
959 if (intel_crtc->pipe == 1)
960 tv_ctl |= TV_ENC_PIPEB_SELECT;
961 tv_ctl |= tv_mode->oversample;
962
963 if (tv_mode->progressive)
964 tv_ctl |= TV_PROGRESSIVE;
965 if (tv_mode->trilevel_sync)
966 tv_ctl |= TV_TRILEVEL_SYNC;
967 if (tv_mode->pal_burst)
968 tv_ctl |= TV_PAL_BURST;
969
970 scctl1 = 0;
971 if (tv_mode->dda1_inc)
972 scctl1 |= TV_SC_DDA1_EN;
973 if (tv_mode->dda2_inc)
974 scctl1 |= TV_SC_DDA2_EN;
975 if (tv_mode->dda3_inc)
976 scctl1 |= TV_SC_DDA3_EN;
977 scctl1 |= tv_mode->sc_reset;
978 if (video_levels)
979 scctl1 |= video_levels->burst << TV_BURST_LEVEL_SHIFT;
980 scctl1 |= tv_mode->dda1_inc << TV_SCDDA1_INC_SHIFT;
981
982 scctl2 = tv_mode->dda2_size << TV_SCDDA2_SIZE_SHIFT |
983 tv_mode->dda2_inc << TV_SCDDA2_INC_SHIFT;
984
985 scctl3 = tv_mode->dda3_size << TV_SCDDA3_SIZE_SHIFT |
986 tv_mode->dda3_inc << TV_SCDDA3_INC_SHIFT;
987
988 /* Enable two fixes for the chips that need them. */
989 if (dev->pci_device < 0x2772)
990 tv_ctl |= TV_ENC_C0_FIX | TV_ENC_SDP_FIX;
991
992 I915_WRITE(TV_H_CTL_1, hctl1);
993 I915_WRITE(TV_H_CTL_2, hctl2);
994 I915_WRITE(TV_H_CTL_3, hctl3);
995 I915_WRITE(TV_V_CTL_1, vctl1);
996 I915_WRITE(TV_V_CTL_2, vctl2);
997 I915_WRITE(TV_V_CTL_3, vctl3);
998 I915_WRITE(TV_V_CTL_4, vctl4);
999 I915_WRITE(TV_V_CTL_5, vctl5);
1000 I915_WRITE(TV_V_CTL_6, vctl6);
1001 I915_WRITE(TV_V_CTL_7, vctl7);
1002 I915_WRITE(TV_SC_CTL_1, scctl1);
1003 I915_WRITE(TV_SC_CTL_2, scctl2);
1004 I915_WRITE(TV_SC_CTL_3, scctl3);
1005
1006 if (color_conversion) {
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 if (INTEL_INFO(dev)->gen >= 4)
1022 I915_WRITE(TV_CLR_KNOBS, 0x00404000);
1023 else
1024 I915_WRITE(TV_CLR_KNOBS, 0x00606000);
1025
1026 if (video_levels)
1027 I915_WRITE(TV_CLR_LEVEL,
1028 ((video_levels->black << TV_BLACK_LEVEL_SHIFT) |
1029 (video_levels->blank << TV_BLANK_LEVEL_SHIFT)));
1030 {
1031 int pipeconf_reg = PIPECONF(pipe);
1032 int dspcntr_reg = DSPCNTR(intel_crtc->plane);
1033 int pipeconf = I915_READ(pipeconf_reg);
1034 int dspcntr = I915_READ(dspcntr_reg);
1035 int dspbase_reg = DSPADDR(intel_crtc->plane);
1036 int xpos = 0x0, ypos = 0x0;
1037 unsigned int xsize, ysize;
1038 /* Pipe must be off here */
1039 I915_WRITE(dspcntr_reg, dspcntr & ~DISPLAY_PLANE_ENABLE);
1040 /* Flush the plane changes */
1041 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1042
1043 /* Wait for vblank for the disable to take effect */
1044 if (IS_GEN2(dev))
1045 intel_wait_for_vblank(dev, intel_crtc->pipe);
1046
1047 I915_WRITE(pipeconf_reg, pipeconf & ~PIPECONF_ENABLE);
1048 /* Wait for vblank for the disable to take effect. */
1049 intel_wait_for_pipe_off(dev, intel_crtc->pipe);
1050
1051 /* Filter ctl must be set before TV_WIN_SIZE */
1052 I915_WRITE(TV_FILTER_CTL_1, TV_AUTO_SCALE);
1053 xsize = tv_mode->hblank_start - tv_mode->hblank_end;
1054 if (tv_mode->progressive)
1055 ysize = tv_mode->nbr_end + 1;
1056 else
1057 ysize = 2*tv_mode->nbr_end + 1;
1058
1059 xpos += intel_tv->margin[TV_MARGIN_LEFT];
1060 ypos += intel_tv->margin[TV_MARGIN_TOP];
1061 xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
1062 intel_tv->margin[TV_MARGIN_RIGHT]);
1063 ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
1064 intel_tv->margin[TV_MARGIN_BOTTOM]);
1065 I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
1066 I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
1067
1068 I915_WRITE(pipeconf_reg, pipeconf);
1069 I915_WRITE(dspcntr_reg, dspcntr);
1070 /* Flush the plane changes */
1071 I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
1072 }
1073
1074 j = 0;
1075 for (i = 0; i < 60; i++)
1076 I915_WRITE(TV_H_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1077 for (i = 0; i < 60; i++)
1078 I915_WRITE(TV_H_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1079 for (i = 0; i < 43; i++)
1080 I915_WRITE(TV_V_LUMA_0 + (i<<2), tv_mode->filter_table[j++]);
1081 for (i = 0; i < 43; i++)
1082 I915_WRITE(TV_V_CHROMA_0 + (i<<2), tv_mode->filter_table[j++]);
1083 I915_WRITE(TV_DAC, I915_READ(TV_DAC) & TV_DAC_SAVE);
1084 I915_WRITE(TV_CTL, tv_ctl);
1085 }
1086
1087 static const struct drm_display_mode reported_modes[] = {
1088 {
1089 .name = "NTSC 480i",
1090 .clock = 107520,
1091 .hdisplay = 1280,
1092 .hsync_start = 1368,
1093 .hsync_end = 1496,
1094 .htotal = 1712,
1095
1096 .vdisplay = 1024,
1097 .vsync_start = 1027,
1098 .vsync_end = 1034,
1099 .vtotal = 1104,
1100 .type = DRM_MODE_TYPE_DRIVER,
1101 },
1102 };
1103
1104 /**
1105 * Detects TV presence by checking for load.
1106 *
1107 * Requires that the current pipe's DPLL is active.
1108
1109 * \return true if TV is connected.
1110 * \return false if TV is disconnected.
1111 */
1112 static int
1113 intel_tv_detect_type(struct intel_tv *intel_tv,
1114 struct drm_connector *connector)
1115 {
1116 struct drm_encoder *encoder = &intel_tv->base.base;
1117 struct drm_crtc *crtc = encoder->crtc;
1118 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1119 struct drm_device *dev = encoder->dev;
1120 struct drm_i915_private *dev_priv = dev->dev_private;
1121 unsigned long irqflags;
1122 u32 tv_ctl, save_tv_ctl;
1123 u32 tv_dac, save_tv_dac;
1124 int type;
1125
1126 /* Disable TV interrupts around load detect or we'll recurse */
1127 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1128 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1129 i915_disable_pipestat(dev_priv, 0,
1130 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1131 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1132 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1133 }
1134
1135 save_tv_dac = tv_dac = I915_READ(TV_DAC);
1136 save_tv_ctl = tv_ctl = I915_READ(TV_CTL);
1137
1138 /* Poll for TV detection */
1139 tv_ctl &= ~(TV_ENC_ENABLE | TV_TEST_MODE_MASK);
1140 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1141 if (intel_crtc->pipe == 1)
1142 tv_ctl |= TV_ENC_PIPEB_SELECT;
1143 else
1144 tv_ctl &= ~TV_ENC_PIPEB_SELECT;
1145
1146 tv_dac &= ~(TVDAC_SENSE_MASK | DAC_A_MASK | DAC_B_MASK | DAC_C_MASK);
1147 tv_dac |= (TVDAC_STATE_CHG_EN |
1148 TVDAC_A_SENSE_CTL |
1149 TVDAC_B_SENSE_CTL |
1150 TVDAC_C_SENSE_CTL |
1151 DAC_CTL_OVERRIDE |
1152 DAC_A_0_7_V |
1153 DAC_B_0_7_V |
1154 DAC_C_0_7_V);
1155
1156 I915_WRITE(TV_CTL, tv_ctl);
1157 I915_WRITE(TV_DAC, tv_dac);
1158 POSTING_READ(TV_DAC);
1159
1160 intel_wait_for_vblank(intel_tv->base.base.dev,
1161 to_intel_crtc(intel_tv->base.base.crtc)->pipe);
1162
1163 type = -1;
1164 tv_dac = I915_READ(TV_DAC);
1165 DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
1166 /*
1167 * A B C
1168 * 0 1 1 Composite
1169 * 1 0 X svideo
1170 * 0 0 0 Component
1171 */
1172 if ((tv_dac & TVDAC_SENSE_MASK) == (TVDAC_B_SENSE | TVDAC_C_SENSE)) {
1173 DRM_DEBUG_KMS("Detected Composite TV connection\n");
1174 type = DRM_MODE_CONNECTOR_Composite;
1175 } else if ((tv_dac & (TVDAC_A_SENSE|TVDAC_B_SENSE)) == TVDAC_A_SENSE) {
1176 DRM_DEBUG_KMS("Detected S-Video TV connection\n");
1177 type = DRM_MODE_CONNECTOR_SVIDEO;
1178 } else if ((tv_dac & TVDAC_SENSE_MASK) == 0) {
1179 DRM_DEBUG_KMS("Detected Component TV connection\n");
1180 type = DRM_MODE_CONNECTOR_Component;
1181 } else {
1182 DRM_DEBUG_KMS("Unrecognised TV connection\n");
1183 type = -1;
1184 }
1185
1186 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1187 I915_WRITE(TV_CTL, save_tv_ctl);
1188
1189 /* Restore interrupt config */
1190 if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
1191 spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
1192 i915_enable_pipestat(dev_priv, 0,
1193 PIPE_HOTPLUG_INTERRUPT_ENABLE |
1194 PIPE_HOTPLUG_TV_INTERRUPT_ENABLE);
1195 spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
1196 }
1197
1198 return type;
1199 }
1200
1201 /*
1202 * Here we set accurate tv format according to connector type
1203 * i.e Component TV should not be assigned by NTSC or PAL
1204 */
1205 static void intel_tv_find_better_format(struct drm_connector *connector)
1206 {
1207 struct intel_tv *intel_tv = intel_attached_tv(connector);
1208 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1209 int i;
1210
1211 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1212 tv_mode->component_only)
1213 return;
1214
1215
1216 for (i = 0; i < sizeof(tv_modes) / sizeof(*tv_modes); i++) {
1217 tv_mode = tv_modes + i;
1218
1219 if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
1220 tv_mode->component_only)
1221 break;
1222 }
1223
1224 intel_tv->tv_format = tv_mode->name;
1225 drm_connector_property_set_value(connector,
1226 connector->dev->mode_config.tv_mode_property, i);
1227 }
1228
1229 /**
1230 * Detect the TV connection.
1231 *
1232 * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
1233 * we have a pipe programmed in order to probe the TV.
1234 */
1235 static enum drm_connector_status
1236 intel_tv_detect(struct drm_connector *connector, bool force)
1237 {
1238 struct drm_display_mode mode;
1239 struct intel_tv *intel_tv = intel_attached_tv(connector);
1240 int type;
1241
1242 mode = reported_modes[0];
1243 drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);
1244
1245 if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) {
1246 type = intel_tv_detect_type(intel_tv, connector);
1247 } else if (force) {
1248 struct intel_load_detect_pipe tmp;
1249
1250 if (intel_get_load_detect_pipe(&intel_tv->base, connector,
1251 &mode, &tmp)) {
1252 type = intel_tv_detect_type(intel_tv, connector);
1253 intel_release_load_detect_pipe(&intel_tv->base,
1254 connector,
1255 &tmp);
1256 } else
1257 return connector_status_unknown;
1258 } else
1259 return connector->status;
1260
1261 if (type < 0)
1262 return connector_status_disconnected;
1263
1264 intel_tv->type = type;
1265 intel_tv_find_better_format(connector);
1266
1267 return connector_status_connected;
1268 }
1269
1270 static const struct input_res {
1271 const char *name;
1272 int w, h;
1273 } input_res_table[] = {
1274 {"640x480", 640, 480},
1275 {"800x600", 800, 600},
1276 {"1024x768", 1024, 768},
1277 {"1280x1024", 1280, 1024},
1278 {"848x480", 848, 480},
1279 {"1280x720", 1280, 720},
1280 {"1920x1080", 1920, 1080},
1281 };
1282
1283 /*
1284 * Chose preferred mode according to line number of TV format
1285 */
1286 static void
1287 intel_tv_chose_preferred_modes(struct drm_connector *connector,
1288 struct drm_display_mode *mode_ptr)
1289 {
1290 struct intel_tv *intel_tv = intel_attached_tv(connector);
1291 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1292
1293 if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
1294 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1295 else if (tv_mode->nbr_end > 480) {
1296 if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
1297 if (mode_ptr->vdisplay == 720)
1298 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1299 } else if (mode_ptr->vdisplay == 1080)
1300 mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
1301 }
1302 }
1303
1304 /**
1305 * Stub get_modes function.
1306 *
1307 * This should probably return a set of fixed modes, unless we can figure out
1308 * how to probe modes off of TV connections.
1309 */
1310
1311 static int
1312 intel_tv_get_modes(struct drm_connector *connector)
1313 {
1314 struct drm_display_mode *mode_ptr;
1315 struct intel_tv *intel_tv = intel_attached_tv(connector);
1316 const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
1317 int j, count = 0;
1318 u64 tmp;
1319
1320 for (j = 0; j < ARRAY_SIZE(input_res_table);
1321 j++) {
1322 const struct input_res *input = &input_res_table[j];
1323 unsigned int hactive_s = input->w;
1324 unsigned int vactive_s = input->h;
1325
1326 if (tv_mode->max_srcw && input->w > tv_mode->max_srcw)
1327 continue;
1328
1329 if (input->w > 1024 && (!tv_mode->progressive
1330 && !tv_mode->component_only))
1331 continue;
1332
1333 mode_ptr = drm_mode_create(connector->dev);
1334 if (!mode_ptr)
1335 continue;
1336 strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN);
1337
1338 mode_ptr->hdisplay = hactive_s;
1339 mode_ptr->hsync_start = hactive_s + 1;
1340 mode_ptr->hsync_end = hactive_s + 64;
1341 if (mode_ptr->hsync_end <= mode_ptr->hsync_start)
1342 mode_ptr->hsync_end = mode_ptr->hsync_start + 1;
1343 mode_ptr->htotal = hactive_s + 96;
1344
1345 mode_ptr->vdisplay = vactive_s;
1346 mode_ptr->vsync_start = vactive_s + 1;
1347 mode_ptr->vsync_end = vactive_s + 32;
1348 if (mode_ptr->vsync_end <= mode_ptr->vsync_start)
1349 mode_ptr->vsync_end = mode_ptr->vsync_start + 1;
1350 mode_ptr->vtotal = vactive_s + 33;
1351
1352 tmp = (u64) tv_mode->refresh * mode_ptr->vtotal;
1353 tmp *= mode_ptr->htotal;
1354 tmp = div_u64(tmp, 1000000);
1355 mode_ptr->clock = (int) tmp;
1356
1357 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
1358 intel_tv_chose_preferred_modes(connector, mode_ptr);
1359 drm_mode_probed_add(connector, mode_ptr);
1360 count++;
1361 }
1362
1363 return count;
1364 }
1365
1366 static void
1367 intel_tv_destroy(struct drm_connector *connector)
1368 {
1369 drm_sysfs_connector_remove(connector);
1370 drm_connector_cleanup(connector);
1371 kfree(connector);
1372 }
1373
1374
1375 static int
1376 intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
1377 uint64_t val)
1378 {
1379 struct drm_device *dev = connector->dev;
1380 struct intel_tv *intel_tv = intel_attached_tv(connector);
1381 struct drm_crtc *crtc = intel_tv->base.base.crtc;
1382 int ret = 0;
1383 bool changed = false;
1384
1385 ret = drm_connector_property_set_value(connector, property, val);
1386 if (ret < 0)
1387 goto out;
1388
1389 if (property == dev->mode_config.tv_left_margin_property &&
1390 intel_tv->margin[TV_MARGIN_LEFT] != val) {
1391 intel_tv->margin[TV_MARGIN_LEFT] = val;
1392 changed = true;
1393 } else if (property == dev->mode_config.tv_right_margin_property &&
1394 intel_tv->margin[TV_MARGIN_RIGHT] != val) {
1395 intel_tv->margin[TV_MARGIN_RIGHT] = val;
1396 changed = true;
1397 } else if (property == dev->mode_config.tv_top_margin_property &&
1398 intel_tv->margin[TV_MARGIN_TOP] != val) {
1399 intel_tv->margin[TV_MARGIN_TOP] = val;
1400 changed = true;
1401 } else if (property == dev->mode_config.tv_bottom_margin_property &&
1402 intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
1403 intel_tv->margin[TV_MARGIN_BOTTOM] = val;
1404 changed = true;
1405 } else if (property == dev->mode_config.tv_mode_property) {
1406 if (val >= ARRAY_SIZE(tv_modes)) {
1407 ret = -EINVAL;
1408 goto out;
1409 }
1410 if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
1411 goto out;
1412
1413 intel_tv->tv_format = tv_modes[val].name;
1414 changed = true;
1415 } else {
1416 ret = -EINVAL;
1417 goto out;
1418 }
1419
1420 if (changed && crtc)
1421 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1422 crtc->y, crtc->fb);
1423 out:
1424 return ret;
1425 }
1426
1427 static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = {
1428 .dpms = intel_tv_dpms,
1429 .mode_fixup = intel_tv_mode_fixup,
1430 .prepare = intel_encoder_prepare,
1431 .mode_set = intel_tv_mode_set,
1432 .commit = intel_encoder_commit,
1433 };
1434
1435 static const struct drm_connector_funcs intel_tv_connector_funcs = {
1436 .dpms = drm_helper_connector_dpms,
1437 .detect = intel_tv_detect,
1438 .destroy = intel_tv_destroy,
1439 .set_property = intel_tv_set_property,
1440 .fill_modes = drm_helper_probe_single_connector_modes,
1441 };
1442
1443 static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs = {
1444 .mode_valid = intel_tv_mode_valid,
1445 .get_modes = intel_tv_get_modes,
1446 .best_encoder = intel_best_encoder,
1447 };
1448
1449 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
1450 .destroy = intel_encoder_destroy,
1451 };
1452
1453 /*
1454 * Enumerate the child dev array parsed from VBT to check whether
1455 * the integrated TV is present.
1456 * If it is present, return 1.
1457 * If it is not present, return false.
1458 * If no child dev is parsed from VBT, it assumes that the TV is present.
1459 */
1460 static int tv_is_present_in_vbt(struct drm_device *dev)
1461 {
1462 struct drm_i915_private *dev_priv = dev->dev_private;
1463 struct child_device_config *p_child;
1464 int i, ret;
1465
1466 if (!dev_priv->child_dev_num)
1467 return 1;
1468
1469 ret = 0;
1470 for (i = 0; i < dev_priv->child_dev_num; i++) {
1471 p_child = dev_priv->child_dev + i;
1472 /*
1473 * If the device type is not TV, continue.
1474 */
1475 if (p_child->device_type != DEVICE_TYPE_INT_TV &&
1476 p_child->device_type != DEVICE_TYPE_TV)
1477 continue;
1478 /* Only when the addin_offset is non-zero, it is regarded
1479 * as present.
1480 */
1481 if (p_child->addin_offset) {
1482 ret = 1;
1483 break;
1484 }
1485 }
1486 return ret;
1487 }
1488
1489 void
1490 intel_tv_init(struct drm_device *dev)
1491 {
1492 struct drm_i915_private *dev_priv = dev->dev_private;
1493 struct drm_connector *connector;
1494 struct intel_tv *intel_tv;
1495 struct intel_encoder *intel_encoder;
1496 struct intel_connector *intel_connector;
1497 u32 tv_dac_on, tv_dac_off, save_tv_dac;
1498 char *tv_format_names[ARRAY_SIZE(tv_modes)];
1499 int i, initial_mode = 0;
1500
1501 if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
1502 return;
1503
1504 if (!tv_is_present_in_vbt(dev)) {
1505 DRM_DEBUG_KMS("Integrated TV is not present.\n");
1506 return;
1507 }
1508 /* Even if we have an encoder we may not have a connector */
1509 if (!dev_priv->int_tv_support)
1510 return;
1511
1512 /*
1513 * Sanity check the TV output by checking to see if the
1514 * DAC register holds a value
1515 */
1516 save_tv_dac = I915_READ(TV_DAC);
1517
1518 I915_WRITE(TV_DAC, save_tv_dac | TVDAC_STATE_CHG_EN);
1519 tv_dac_on = I915_READ(TV_DAC);
1520
1521 I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
1522 tv_dac_off = I915_READ(TV_DAC);
1523
1524 I915_WRITE(TV_DAC, save_tv_dac);
1525
1526 /*
1527 * If the register does not hold the state change enable
1528 * bit, (either as a 0 or a 1), assume it doesn't really
1529 * exist
1530 */
1531 if ((tv_dac_on & TVDAC_STATE_CHG_EN) == 0 ||
1532 (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
1533 return;
1534
1535 intel_tv = kzalloc(sizeof(struct intel_tv), GFP_KERNEL);
1536 if (!intel_tv) {
1537 return;
1538 }
1539
1540 intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
1541 if (!intel_connector) {
1542 kfree(intel_tv);
1543 return;
1544 }
1545
1546 intel_encoder = &intel_tv->base;
1547 connector = &intel_connector->base;
1548
1549 /* The documentation, for the older chipsets at least, recommend
1550 * using a polling method rather than hotplug detection for TVs.
1551 * This is because in order to perform the hotplug detection, the PLLs
1552 * for the TV must be kept alive increasing power drain and starving
1553 * bandwidth from other encoders. Notably for instance, it causes
1554 * pipe underruns on Crestline when this encoder is supposedly idle.
1555 *
1556 * More recent chipsets favour HDMI rather than integrated S-Video.
1557 */
1558 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1559
1560 drm_connector_init(dev, connector, &intel_tv_connector_funcs,
1561 DRM_MODE_CONNECTOR_SVIDEO);
1562
1563 drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
1564 DRM_MODE_ENCODER_TVDAC);
1565
1566 intel_connector_attach_encoder(intel_connector, intel_encoder);
1567 intel_encoder->type = INTEL_OUTPUT_TVOUT;
1568 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
1569 intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
1570 intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
1571 intel_encoder->base.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
1572 intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
1573
1574 /* BIOS margin values */
1575 intel_tv->margin[TV_MARGIN_LEFT] = 54;
1576 intel_tv->margin[TV_MARGIN_TOP] = 36;
1577 intel_tv->margin[TV_MARGIN_RIGHT] = 46;
1578 intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
1579
1580 intel_tv->tv_format = tv_modes[initial_mode].name;
1581
1582 drm_encoder_helper_add(&intel_encoder->base, &intel_tv_helper_funcs);
1583 drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
1584 connector->interlace_allowed = false;
1585 connector->doublescan_allowed = false;
1586
1587 /* Create TV properties then attach current values */
1588 for (i = 0; i < ARRAY_SIZE(tv_modes); i++)
1589 tv_format_names[i] = (char *)tv_modes[i].name;
1590 drm_mode_create_tv_properties(dev,
1591 ARRAY_SIZE(tv_modes),
1592 tv_format_names);
1593
1594 drm_connector_attach_property(connector, dev->mode_config.tv_mode_property,
1595 initial_mode);
1596 drm_connector_attach_property(connector,
1597 dev->mode_config.tv_left_margin_property,
1598 intel_tv->margin[TV_MARGIN_LEFT]);
1599 drm_connector_attach_property(connector,
1600 dev->mode_config.tv_top_margin_property,
1601 intel_tv->margin[TV_MARGIN_TOP]);
1602 drm_connector_attach_property(connector,
1603 dev->mode_config.tv_right_margin_property,
1604 intel_tv->margin[TV_MARGIN_RIGHT]);
1605 drm_connector_attach_property(connector,
1606 dev->mode_config.tv_bottom_margin_property,
1607 intel_tv->margin[TV_MARGIN_BOTTOM]);
1608 drm_sysfs_connector_add(connector);
1609 }