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[karo-tx-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       = "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, 0);
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 }