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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / gpu / drm / radeon / radeon_legacy_tv.c
blobb37ec0f1413a954417c89bba13f49ef05d975bf8
1 #include "drmP.h"
2 #include "drm_crtc_helper.h"
3 #include "radeon.h"
4
5 /*
6 * Integrated TV out support based on the GATOS code by
7 * Federico Ulivi <fulivi@lycos.com>
8 */
9
10
11 /*
12 * Limits of h/v positions (hPos & vPos)
13 */
14 #define MAX_H_POSITION 5 /* Range: [-5..5], negative is on the left, 0 is default, positive is on the right */
15 #define MAX_V_POSITION 5 /* Range: [-5..5], negative is up, 0 is default, positive is down */
16
17 /*
18 * Unit for hPos (in TV clock periods)
19 */
20 #define H_POS_UNIT 10
21
22 /*
23 * Indexes in h. code timing table for horizontal line position adjustment
24 */
25 #define H_TABLE_POS1 6
26 #define H_TABLE_POS2 8
27
28 /*
29 * Limits of hor. size (hSize)
30 */
31 #define MAX_H_SIZE 5 /* Range: [-5..5], negative is smaller, positive is larger */
32
33 /* tv standard constants */
34 #define NTSC_TV_CLOCK_T 233
35 #define NTSC_TV_VFTOTAL 1
36 #define NTSC_TV_LINES_PER_FRAME 525
37 #define NTSC_TV_ZERO_H_SIZE 479166
38 #define NTSC_TV_H_SIZE_UNIT 9478
39
40 #define PAL_TV_CLOCK_T 188
41 #define PAL_TV_VFTOTAL 3
42 #define PAL_TV_LINES_PER_FRAME 625
43 #define PAL_TV_ZERO_H_SIZE 473200
44 #define PAL_TV_H_SIZE_UNIT 9360
45
46 /* tv pll setting for 27 mhz ref clk */
47 #define NTSC_TV_PLL_M_27 22
48 #define NTSC_TV_PLL_N_27 175
49 #define NTSC_TV_PLL_P_27 5
50
51 #define PAL_TV_PLL_M_27 113
52 #define PAL_TV_PLL_N_27 668
53 #define PAL_TV_PLL_P_27 3
54
55 /* tv pll setting for 14 mhz ref clk */
56 #define NTSC_TV_PLL_M_14 33
57 #define NTSC_TV_PLL_N_14 693
58 #define NTSC_TV_PLL_P_14 7
59
60 #define PAL_TV_PLL_M_14 19
61 #define PAL_TV_PLL_N_14 353
62 #define PAL_TV_PLL_P_14 5
63
64 #define VERT_LEAD_IN_LINES 2
65 #define FRAC_BITS 0xe
66 #define FRAC_MASK 0x3fff
67
68 struct radeon_tv_mode_constants {
69 uint16_t hor_resolution;
70 uint16_t ver_resolution;
71 enum radeon_tv_std standard;
72 uint16_t hor_total;
73 uint16_t ver_total;
74 uint16_t hor_start;
75 uint16_t hor_syncstart;
76 uint16_t ver_syncstart;
77 unsigned def_restart;
78 uint16_t crtcPLL_N;
79 uint8_t crtcPLL_M;
80 uint8_t crtcPLL_post_div;
81 unsigned pix_to_tv;
82 };
83
84 static const uint16_t hor_timing_NTSC[MAX_H_CODE_TIMING_LEN] = {
85 0x0007,
86 0x003f,
87 0x0263,
88 0x0a24,
89 0x2a6b,
90 0x0a36,
91 0x126d, /* H_TABLE_POS1 */
92 0x1bfe,
93 0x1a8f, /* H_TABLE_POS2 */
94 0x1ec7,
95 0x3863,
96 0x1bfe,
97 0x1bfe,
98 0x1a2a,
99 0x1e95,
100 0x0e31,
101 0x201b,
102 0
103 };
104
105 static const uint16_t vert_timing_NTSC[MAX_V_CODE_TIMING_LEN] = {
106 0x2001,
107 0x200d,
108 0x1006,
109 0x0c06,
110 0x1006,
111 0x1818,
112 0x21e3,
113 0x1006,
114 0x0c06,
115 0x1006,
116 0x1817,
117 0x21d4,
118 0x0002,
119 0
120 };
121
122 static const uint16_t hor_timing_PAL[MAX_H_CODE_TIMING_LEN] = {
123 0x0007,
124 0x0058,
125 0x027c,
126 0x0a31,
127 0x2a77,
128 0x0a95,
129 0x124f, /* H_TABLE_POS1 */
130 0x1bfe,
131 0x1b22, /* H_TABLE_POS2 */
132 0x1ef9,
133 0x387c,
134 0x1bfe,
135 0x1bfe,
136 0x1b31,
137 0x1eb5,
138 0x0e43,
139 0x201b,
140 0
141 };
142
143 static const uint16_t vert_timing_PAL[MAX_V_CODE_TIMING_LEN] = {
144 0x2001,
145 0x200c,
146 0x1005,
147 0x0c05,
148 0x1005,
149 0x1401,
150 0x1821,
151 0x2240,
152 0x1005,
153 0x0c05,
154 0x1005,
155 0x1401,
156 0x1822,
157 0x2230,
158 0x0002,
159 0
160 };
161
162 /**********************************************************************
163 *
164 * availableModes
165 *
166 * Table of all allowed modes for tv output
167 *
168 **********************************************************************/
169 static const struct radeon_tv_mode_constants available_tv_modes[] = {
170 { /* NTSC timing for 27 Mhz ref clk */
171 800, /* horResolution */
172 600, /* verResolution */
173 TV_STD_NTSC, /* standard */
174 990, /* horTotal */
175 740, /* verTotal */
176 813, /* horStart */
177 824, /* horSyncStart */
178 632, /* verSyncStart */
179 625592, /* defRestart */
180 592, /* crtcPLL_N */
181 91, /* crtcPLL_M */
182 4, /* crtcPLL_postDiv */
183 1022, /* pixToTV */
184 },
185 { /* PAL timing for 27 Mhz ref clk */
186 800, /* horResolution */
187 600, /* verResolution */
188 TV_STD_PAL, /* standard */
189 1144, /* horTotal */
190 706, /* verTotal */
191 812, /* horStart */
192 824, /* horSyncStart */
193 669, /* verSyncStart */
194 696700, /* defRestart */
195 1382, /* crtcPLL_N */
196 231, /* crtcPLL_M */
197 4, /* crtcPLL_postDiv */
198 759, /* pixToTV */
199 },
200 { /* NTSC timing for 14 Mhz ref clk */
201 800, /* horResolution */
202 600, /* verResolution */
203 TV_STD_NTSC, /* standard */
204 1018, /* horTotal */
205 727, /* verTotal */
206 813, /* horStart */
207 840, /* horSyncStart */
208 633, /* verSyncStart */
209 630627, /* defRestart */
210 347, /* crtcPLL_N */
211 14, /* crtcPLL_M */
212 8, /* crtcPLL_postDiv */
213 1022, /* pixToTV */
214 },
215 { /* PAL timing for 14 Mhz ref clk */
216 800, /* horResolution */
217 600, /* verResolution */
218 TV_STD_PAL, /* standard */
219 1131, /* horTotal */
220 742, /* verTotal */
221 813, /* horStart */
222 840, /* horSyncStart */
223 633, /* verSyncStart */
224 708369, /* defRestart */
225 211, /* crtcPLL_N */
226 9, /* crtcPLL_M */
227 8, /* crtcPLL_postDiv */
228 759, /* pixToTV */
229 },
230 };
231
232 #define N_AVAILABLE_MODES ARRAY_SIZE(available_tv_modes)
233
234 static const struct radeon_tv_mode_constants *radeon_legacy_tv_get_std_mode(struct radeon_encoder *radeon_encoder,
235 uint16_t *pll_ref_freq)
236 {
237 struct drm_device *dev = radeon_encoder->base.dev;
238 struct radeon_device *rdev = dev->dev_private;
239 struct radeon_crtc *radeon_crtc;
240 struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
241 const struct radeon_tv_mode_constants *const_ptr;
242 struct radeon_pll *pll;
243
244 radeon_crtc = to_radeon_crtc(radeon_encoder->base.crtc);
245 if (radeon_crtc->crtc_id == 1)
246 pll = &rdev->clock.p2pll;
247 else
248 pll = &rdev->clock.p1pll;
249
250 if (pll_ref_freq)
251 *pll_ref_freq = pll->reference_freq;
252
253 if (tv_dac->tv_std == TV_STD_NTSC ||
254 tv_dac->tv_std == TV_STD_NTSC_J ||
255 tv_dac->tv_std == TV_STD_PAL_M) {
256 if (pll->reference_freq == 2700)
257 const_ptr = &available_tv_modes[0];
258 else
259 const_ptr = &available_tv_modes[2];
260 } else {
261 if (pll->reference_freq == 2700)
262 const_ptr = &available_tv_modes[1];
263 else
264 const_ptr = &available_tv_modes[3];
265 }
266 return const_ptr;
267 }
268
269 static long YCOEF_value[5] = { 2, 2, 0, 4, 0 };
270 static long YCOEF_EN_value[5] = { 1, 1, 0, 1, 0 };
271 static long SLOPE_value[5] = { 1, 2, 2, 4, 8 };
272 static long SLOPE_limit[5] = { 6, 5, 4, 3, 2 };
273
274 static void radeon_wait_pll_lock(struct drm_encoder *encoder, unsigned n_tests,
275 unsigned n_wait_loops, unsigned cnt_threshold)
276 {
277 struct drm_device *dev = encoder->dev;
278 struct radeon_device *rdev = dev->dev_private;
279 uint32_t save_pll_test;
280 unsigned int i, j;
281
282 WREG32(RADEON_TEST_DEBUG_MUX, (RREG32(RADEON_TEST_DEBUG_MUX) & 0xffff60ff) | 0x100);
283 save_pll_test = RREG32_PLL(RADEON_PLL_TEST_CNTL);
284 WREG32_PLL(RADEON_PLL_TEST_CNTL, save_pll_test & ~RADEON_PLL_MASK_READ_B);
285
286 WREG8(RADEON_CLOCK_CNTL_INDEX, RADEON_PLL_TEST_CNTL);
287 for (i = 0; i < n_tests; i++) {
288 WREG8(RADEON_CLOCK_CNTL_DATA + 3, 0);
289 for (j = 0; j < n_wait_loops; j++)
290 if (RREG8(RADEON_CLOCK_CNTL_DATA + 3) >= cnt_threshold)
291 break;
292 }
293 WREG32_PLL(RADEON_PLL_TEST_CNTL, save_pll_test);
294 WREG32(RADEON_TEST_DEBUG_MUX, RREG32(RADEON_TEST_DEBUG_MUX) & 0xffffe0ff);
295 }
296
297
298 static void radeon_legacy_tv_write_fifo(struct radeon_encoder *radeon_encoder,
299 uint16_t addr, uint32_t value)
300 {
301 struct drm_device *dev = radeon_encoder->base.dev;
302 struct radeon_device *rdev = dev->dev_private;
303 uint32_t tmp;
304 int i = 0;
305
306 WREG32(RADEON_TV_HOST_WRITE_DATA, value);
307
308 WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr);
309 WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr | RADEON_HOST_FIFO_WT);
310
311 do {
312 tmp = RREG32(RADEON_TV_HOST_RD_WT_CNTL);
313 if ((tmp & RADEON_HOST_FIFO_WT_ACK) == 0)
314 break;
315 i++;
316 } while (i < 10000);
317 WREG32(RADEON_TV_HOST_RD_WT_CNTL, 0);
318 }
319
320 #if 0 /* included for completeness */
321 static uint32_t radeon_legacy_tv_read_fifo(struct radeon_encoder *radeon_encoder, uint16_t addr)
322 {
323 struct drm_device *dev = radeon_encoder->base.dev;
324 struct radeon_device *rdev = dev->dev_private;
325 uint32_t tmp;
326 int i = 0;
327
328 WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr);
329 WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr | RADEON_HOST_FIFO_RD);
330
331 do {
332 tmp = RREG32(RADEON_TV_HOST_RD_WT_CNTL);
333 if ((tmp & RADEON_HOST_FIFO_RD_ACK) == 0)
334 break;
335 i++;
336 } while (i < 10000);
337 WREG32(RADEON_TV_HOST_RD_WT_CNTL, 0);
338 return RREG32(RADEON_TV_HOST_READ_DATA);
339 }
340 #endif
341
342 static uint16_t radeon_get_htiming_tables_addr(uint32_t tv_uv_adr)
343 {
344 uint16_t h_table;
345
346 switch ((tv_uv_adr & RADEON_HCODE_TABLE_SEL_MASK) >> RADEON_HCODE_TABLE_SEL_SHIFT) {
347 case 0:
348 h_table = RADEON_TV_MAX_FIFO_ADDR_INTERNAL;
349 break;
350 case 1:
351 h_table = ((tv_uv_adr & RADEON_TABLE1_BOT_ADR_MASK) >> RADEON_TABLE1_BOT_ADR_SHIFT) * 2;
352 break;
353 case 2:
354 h_table = ((tv_uv_adr & RADEON_TABLE3_TOP_ADR_MASK) >> RADEON_TABLE3_TOP_ADR_SHIFT) * 2;
355 break;
356 default:
357 h_table = 0;
358 break;
359 }
360 return h_table;
361 }
362
363 static uint16_t radeon_get_vtiming_tables_addr(uint32_t tv_uv_adr)
364 {
365 uint16_t v_table;
366
367 switch ((tv_uv_adr & RADEON_VCODE_TABLE_SEL_MASK) >> RADEON_VCODE_TABLE_SEL_SHIFT) {
368 case 0:
369 v_table = ((tv_uv_adr & RADEON_MAX_UV_ADR_MASK) >> RADEON_MAX_UV_ADR_SHIFT) * 2 + 1;
370 break;
371 case 1:
372 v_table = ((tv_uv_adr & RADEON_TABLE1_BOT_ADR_MASK) >> RADEON_TABLE1_BOT_ADR_SHIFT) * 2 + 1;
373 break;
374 case 2:
375 v_table = ((tv_uv_adr & RADEON_TABLE3_TOP_ADR_MASK) >> RADEON_TABLE3_TOP_ADR_SHIFT) * 2 + 1;
376 break;
377 default:
378 v_table = 0;
379 break;
380 }
381 return v_table;
382 }
383
384 static void radeon_restore_tv_timing_tables(struct radeon_encoder *radeon_encoder)
385 {
386 struct drm_device *dev = radeon_encoder->base.dev;
387 struct radeon_device *rdev = dev->dev_private;
388 struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
389 uint16_t h_table, v_table;
390 uint32_t tmp;
391 int i;
392
393 WREG32(RADEON_TV_UV_ADR, tv_dac->tv.tv_uv_adr);
394 h_table = radeon_get_htiming_tables_addr(tv_dac->tv.tv_uv_adr);
395 v_table = radeon_get_vtiming_tables_addr(tv_dac->tv.tv_uv_adr);
396
397 for (i = 0; i < MAX_H_CODE_TIMING_LEN; i += 2, h_table--) {
398 tmp = ((uint32_t)tv_dac->tv.h_code_timing[i] << 14) | ((uint32_t)tv_dac->tv.h_code_timing[i+1]);
399 radeon_legacy_tv_write_fifo(radeon_encoder, h_table, tmp);
400 if (tv_dac->tv.h_code_timing[i] == 0 || tv_dac->tv.h_code_timing[i + 1] == 0)
401 break;
402 }
403 for (i = 0; i < MAX_V_CODE_TIMING_LEN; i += 2, v_table++) {
404 tmp = ((uint32_t)tv_dac->tv.v_code_timing[i+1] << 14) | ((uint32_t)tv_dac->tv.v_code_timing[i]);
405 radeon_legacy_tv_write_fifo(radeon_encoder, v_table, tmp);
406 if (tv_dac->tv.v_code_timing[i] == 0 || tv_dac->tv.v_code_timing[i + 1] == 0)
407 break;
408 }
409 }
410
411 static void radeon_legacy_write_tv_restarts(struct radeon_encoder *radeon_encoder)
412 {
413 struct drm_device *dev = radeon_encoder->base.dev;
414 struct radeon_device *rdev = dev->dev_private;
415 struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
416 WREG32(RADEON_TV_FRESTART, tv_dac->tv.frestart);
417 WREG32(RADEON_TV_HRESTART, tv_dac->tv.hrestart);
418 WREG32(RADEON_TV_VRESTART, tv_dac->tv.vrestart);
419 }
420
421 static bool radeon_legacy_tv_init_restarts(struct drm_encoder *encoder)
422 {
423 struct drm_device *dev = encoder->dev;
424 struct radeon_device *rdev = dev->dev_private;
425 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
426 struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
427 struct radeon_crtc *radeon_crtc;
428 int restart;
429 unsigned int h_total, v_total, f_total;
430 int v_offset, h_offset;
431 u16 p1, p2, h_inc;
432 bool h_changed;
433 const struct radeon_tv_mode_constants *const_ptr;
434 struct radeon_pll *pll;
435
436 radeon_crtc = to_radeon_crtc(radeon_encoder->base.crtc);
437 if (radeon_crtc->crtc_id == 1)
438 pll = &rdev->clock.p2pll;
439 else
440 pll = &rdev->clock.p1pll;
441
442 const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
443 if (!const_ptr)
444 return false;
445
446 h_total = const_ptr->hor_total;
447 v_total = const_ptr->ver_total;
448
449 if (tv_dac->tv_std == TV_STD_NTSC ||
450 tv_dac->tv_std == TV_STD_NTSC_J ||
451 tv_dac->tv_std == TV_STD_PAL_M ||
452 tv_dac->tv_std == TV_STD_PAL_60)
453 f_total = NTSC_TV_VFTOTAL + 1;
454 else
455 f_total = PAL_TV_VFTOTAL + 1;
456
457 /* adjust positions 1&2 in hor. cod timing table */
458 h_offset = tv_dac->h_pos * H_POS_UNIT;
459
460 if (tv_dac->tv_std == TV_STD_NTSC ||
461 tv_dac->tv_std == TV_STD_NTSC_J ||
462 tv_dac->tv_std == TV_STD_PAL_M) {
463 h_offset -= 50;
464 p1 = hor_timing_NTSC[H_TABLE_POS1];
465 p2 = hor_timing_NTSC[H_TABLE_POS2];
466 } else {
467 p1 = hor_timing_PAL[H_TABLE_POS1];
468 p2 = hor_timing_PAL[H_TABLE_POS2];
469 }
470
471 p1 = (u16)((int)p1 + h_offset);
472 p2 = (u16)((int)p2 - h_offset);
473
474 h_changed = (p1 != tv_dac->tv.h_code_timing[H_TABLE_POS1] ||
475 p2 != tv_dac->tv.h_code_timing[H_TABLE_POS2]);
476
477 tv_dac->tv.h_code_timing[H_TABLE_POS1] = p1;
478 tv_dac->tv.h_code_timing[H_TABLE_POS2] = p2;
479
480 /* Convert hOffset from n. of TV clock periods to n. of CRTC clock periods (CRTC pixels) */
481 h_offset = (h_offset * (int)(const_ptr->pix_to_tv)) / 1000;
482
483 /* adjust restart */
484 restart = const_ptr->def_restart;
485
486 /*
487 * convert v_pos TV lines to n. of CRTC pixels
488 */
489 if (tv_dac->tv_std == TV_STD_NTSC ||
490 tv_dac->tv_std == TV_STD_NTSC_J ||
491 tv_dac->tv_std == TV_STD_PAL_M ||
492 tv_dac->tv_std == TV_STD_PAL_60)
493 v_offset = ((int)(v_total * h_total) * 2 * tv_dac->v_pos) / (int)(NTSC_TV_LINES_PER_FRAME);
494 else
495 v_offset = ((int)(v_total * h_total) * 2 * tv_dac->v_pos) / (int)(PAL_TV_LINES_PER_FRAME);
496
497 restart -= v_offset + h_offset;
498
499 DRM_DEBUG_KMS("compute_restarts: def = %u h = %d v = %d, p1 = %04x, p2 = %04x, restart = %d\n",
500 const_ptr->def_restart, tv_dac->h_pos, tv_dac->v_pos, p1, p2, restart);
501
502 tv_dac->tv.hrestart = restart % h_total;
503 restart /= h_total;
504 tv_dac->tv.vrestart = restart % v_total;
505 restart /= v_total;
506 tv_dac->tv.frestart = restart % f_total;
507
508 DRM_DEBUG_KMS("compute_restart: F/H/V=%u,%u,%u\n",
509 (unsigned)tv_dac->tv.frestart,
510 (unsigned)tv_dac->tv.vrestart,
511 (unsigned)tv_dac->tv.hrestart);
512
513 /* compute h_inc from hsize */
514 if (tv_dac->tv_std == TV_STD_NTSC ||
515 tv_dac->tv_std == TV_STD_NTSC_J ||
516 tv_dac->tv_std == TV_STD_PAL_M)
517 h_inc = (u16)((int)(const_ptr->hor_resolution * 4096 * NTSC_TV_CLOCK_T) /
518 (tv_dac->h_size * (int)(NTSC_TV_H_SIZE_UNIT) + (int)(NTSC_TV_ZERO_H_SIZE)));
519 else
520 h_inc = (u16)((int)(const_ptr->hor_resolution * 4096 * PAL_TV_CLOCK_T) /
521 (tv_dac->h_size * (int)(PAL_TV_H_SIZE_UNIT) + (int)(PAL_TV_ZERO_H_SIZE)));
522
523 tv_dac->tv.timing_cntl = (tv_dac->tv.timing_cntl & ~RADEON_H_INC_MASK) |
524 ((u32)h_inc << RADEON_H_INC_SHIFT);
525
526 DRM_DEBUG_KMS("compute_restart: h_size = %d h_inc = %d\n", tv_dac->h_size, h_inc);
527
528 return h_changed;
529 }
530
531 void radeon_legacy_tv_mode_set(struct drm_encoder *encoder,
532 struct drm_display_mode *mode,
533 struct drm_display_mode *adjusted_mode)
534 {
535 struct drm_device *dev = encoder->dev;
536 struct radeon_device *rdev = dev->dev_private;
537 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
538 struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
539 const struct radeon_tv_mode_constants *const_ptr;
540 struct radeon_crtc *radeon_crtc;
541 int i;
542 uint16_t pll_ref_freq;
543 uint32_t vert_space, flicker_removal, tmp;
544 uint32_t tv_master_cntl, tv_rgb_cntl, tv_dac_cntl;
545 uint32_t tv_modulator_cntl1, tv_modulator_cntl2;
546 uint32_t tv_vscaler_cntl1, tv_vscaler_cntl2;
547 uint32_t tv_pll_cntl, tv_pll_cntl1, tv_ftotal;
548 uint32_t tv_y_fall_cntl, tv_y_rise_cntl, tv_y_saw_tooth_cntl;
549 uint32_t m, n, p;
550 const uint16_t *hor_timing;
551 const uint16_t *vert_timing;
552
553 const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, &pll_ref_freq);
554 if (!const_ptr)
555 return;
556
557 radeon_crtc = to_radeon_crtc(encoder->crtc);
558
559 tv_master_cntl = (RADEON_VIN_ASYNC_RST |
560 RADEON_CRT_FIFO_CE_EN |
561 RADEON_TV_FIFO_CE_EN |
562 RADEON_TV_ON);
563
564 if (!ASIC_IS_R300(rdev))
565 tv_master_cntl |= RADEON_TVCLK_ALWAYS_ONb;
566
567 if (tv_dac->tv_std == TV_STD_NTSC ||
568 tv_dac->tv_std == TV_STD_NTSC_J)
569 tv_master_cntl |= RADEON_RESTART_PHASE_FIX;
570
571 tv_modulator_cntl1 = (RADEON_SLEW_RATE_LIMIT |
572 RADEON_SYNC_TIP_LEVEL |
573 RADEON_YFLT_EN |
574 RADEON_UVFLT_EN |
575 (6 << RADEON_CY_FILT_BLEND_SHIFT));
576
577 if (tv_dac->tv_std == TV_STD_NTSC ||
578 tv_dac->tv_std == TV_STD_NTSC_J) {
579 tv_modulator_cntl1 |= (0x46 << RADEON_SET_UP_LEVEL_SHIFT) |
580 (0x3b << RADEON_BLANK_LEVEL_SHIFT);
581 tv_modulator_cntl2 = (-111 & RADEON_TV_U_BURST_LEVEL_MASK) |
582 ((0 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
583 } else if (tv_dac->tv_std == TV_STD_SCART_PAL) {
584 tv_modulator_cntl1 |= RADEON_ALT_PHASE_EN;
585 tv_modulator_cntl2 = (0 & RADEON_TV_U_BURST_LEVEL_MASK) |
586 ((0 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
587 } else {
588 tv_modulator_cntl1 |= RADEON_ALT_PHASE_EN |
589 (0x3b << RADEON_SET_UP_LEVEL_SHIFT) |
590 (0x3b << RADEON_BLANK_LEVEL_SHIFT);
591 tv_modulator_cntl2 = (-78 & RADEON_TV_U_BURST_LEVEL_MASK) |
592 ((62 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
593 }
594
595
596 tv_rgb_cntl = (RADEON_RGB_DITHER_EN
597 | RADEON_TVOUT_SCALE_EN
598 | (0x0b << RADEON_UVRAM_READ_MARGIN_SHIFT)
599 | (0x07 << RADEON_FIFORAM_FFMACRO_READ_MARGIN_SHIFT)
600 | RADEON_RGB_ATTEN_SEL(0x3)
601 | RADEON_RGB_ATTEN_VAL(0xc));
602
603 if (radeon_crtc->crtc_id == 1)
604 tv_rgb_cntl |= RADEON_RGB_SRC_SEL_CRTC2;
605 else {
606 if (radeon_crtc->rmx_type != RMX_OFF)
607 tv_rgb_cntl |= RADEON_RGB_SRC_SEL_RMX;
608 else
609 tv_rgb_cntl |= RADEON_RGB_SRC_SEL_CRTC1;
610 }
611
612 if (tv_dac->tv_std == TV_STD_NTSC ||
613 tv_dac->tv_std == TV_STD_NTSC_J ||
614 tv_dac->tv_std == TV_STD_PAL_M ||
615 tv_dac->tv_std == TV_STD_PAL_60)
616 vert_space = const_ptr->ver_total * 2 * 10000 / NTSC_TV_LINES_PER_FRAME;
617 else
618 vert_space = const_ptr->ver_total * 2 * 10000 / PAL_TV_LINES_PER_FRAME;
619
620 tmp = RREG32(RADEON_TV_VSCALER_CNTL1);
621 tmp &= 0xe3ff0000;
622 tmp |= (vert_space * (1 << FRAC_BITS) / 10000);
623 tv_vscaler_cntl1 = tmp;
624
625 if (pll_ref_freq == 2700)
626 tv_vscaler_cntl1 |= RADEON_RESTART_FIELD;
627
628 if (const_ptr->hor_resolution == 1024)
629 tv_vscaler_cntl1 |= (4 << RADEON_Y_DEL_W_SIG_SHIFT);
630 else
631 tv_vscaler_cntl1 |= (2 << RADEON_Y_DEL_W_SIG_SHIFT);
632
633 /* scale up for int divide */
634 tmp = const_ptr->ver_total * 2 * 1000;
635 if (tv_dac->tv_std == TV_STD_NTSC ||
636 tv_dac->tv_std == TV_STD_NTSC_J ||
637 tv_dac->tv_std == TV_STD_PAL_M ||
638 tv_dac->tv_std == TV_STD_PAL_60) {
639 tmp /= NTSC_TV_LINES_PER_FRAME;
640 } else {
641 tmp /= PAL_TV_LINES_PER_FRAME;
642 }
643 flicker_removal = (tmp + 500) / 1000;
644
645 if (flicker_removal < 3)
646 flicker_removal = 3;
647 for (i = 0; i < ARRAY_SIZE(SLOPE_limit); ++i) {
648 if (flicker_removal == SLOPE_limit[i])
649 break;
650 }
651
652 tv_y_saw_tooth_cntl = (vert_space * SLOPE_value[i] * (1 << (FRAC_BITS - 1)) +
653 5001) / 10000 / 8 | ((SLOPE_value[i] *
654 (1 << (FRAC_BITS - 1)) / 8) << 16);
655 tv_y_fall_cntl =
656 (YCOEF_EN_value[i] << 17) | ((YCOEF_value[i] * (1 << 8) / 8) << 24) |
657 RADEON_Y_FALL_PING_PONG | (272 * SLOPE_value[i] / 8) * (1 << (FRAC_BITS - 1)) /
658 1024;
659 tv_y_rise_cntl = RADEON_Y_RISE_PING_PONG|
660 (flicker_removal * 1024 - 272) * SLOPE_value[i] / 8 * (1 << (FRAC_BITS - 1)) / 1024;
661
662 tv_vscaler_cntl2 = RREG32(RADEON_TV_VSCALER_CNTL2) & 0x00fffff0;
663 tv_vscaler_cntl2 |= (0x10 << 24) |
664 RADEON_DITHER_MODE |
665 RADEON_Y_OUTPUT_DITHER_EN |
666 RADEON_UV_OUTPUT_DITHER_EN |
667 RADEON_UV_TO_BUF_DITHER_EN;
668
669 tmp = (tv_vscaler_cntl1 >> RADEON_UV_INC_SHIFT) & RADEON_UV_INC_MASK;
670 tmp = ((16384 * 256 * 10) / tmp + 5) / 10;
671 tmp = (tmp << RADEON_UV_OUTPUT_POST_SCALE_SHIFT) | 0x000b0000;
672 tv_dac->tv.timing_cntl = tmp;
673
674 if (tv_dac->tv_std == TV_STD_NTSC ||
675 tv_dac->tv_std == TV_STD_NTSC_J ||
676 tv_dac->tv_std == TV_STD_PAL_M ||
677 tv_dac->tv_std == TV_STD_PAL_60)
678 tv_dac_cntl = tv_dac->ntsc_tvdac_adj;
679 else
680 tv_dac_cntl = tv_dac->pal_tvdac_adj;
681
682 tv_dac_cntl |= RADEON_TV_DAC_NBLANK | RADEON_TV_DAC_NHOLD;
683
684 if (tv_dac->tv_std == TV_STD_NTSC ||
685 tv_dac->tv_std == TV_STD_NTSC_J)
686 tv_dac_cntl |= RADEON_TV_DAC_STD_NTSC;
687 else
688 tv_dac_cntl |= RADEON_TV_DAC_STD_PAL;
689
690 if (tv_dac->tv_std == TV_STD_NTSC ||
691 tv_dac->tv_std == TV_STD_NTSC_J) {
692 if (pll_ref_freq == 2700) {
693 m = NTSC_TV_PLL_M_27;
694 n = NTSC_TV_PLL_N_27;
695 p = NTSC_TV_PLL_P_27;
696 } else {
697 m = NTSC_TV_PLL_M_14;
698 n = NTSC_TV_PLL_N_14;
699 p = NTSC_TV_PLL_P_14;
700 }
701 } else {
702 if (pll_ref_freq == 2700) {
703 m = PAL_TV_PLL_M_27;
704 n = PAL_TV_PLL_N_27;
705 p = PAL_TV_PLL_P_27;
706 } else {
707 m = PAL_TV_PLL_M_14;
708 n = PAL_TV_PLL_N_14;
709 p = PAL_TV_PLL_P_14;
710 }
711 }
712
713 tv_pll_cntl = (m & RADEON_TV_M0LO_MASK) |
714 (((m >> 8) & RADEON_TV_M0HI_MASK) << RADEON_TV_M0HI_SHIFT) |
715 ((n & RADEON_TV_N0LO_MASK) << RADEON_TV_N0LO_SHIFT) |
716 (((n >> 9) & RADEON_TV_N0HI_MASK) << RADEON_TV_N0HI_SHIFT) |
717 ((p & RADEON_TV_P_MASK) << RADEON_TV_P_SHIFT);
718
719 tv_pll_cntl1 = (((4 & RADEON_TVPCP_MASK) << RADEON_TVPCP_SHIFT) |
720 ((4 & RADEON_TVPVG_MASK) << RADEON_TVPVG_SHIFT) |
721 ((1 & RADEON_TVPDC_MASK) << RADEON_TVPDC_SHIFT) |
722 RADEON_TVCLK_SRC_SEL_TVPLL |
723 RADEON_TVPLL_TEST_DIS);
724
725 tv_dac->tv.tv_uv_adr = 0xc8;
726
727 if (tv_dac->tv_std == TV_STD_NTSC ||
728 tv_dac->tv_std == TV_STD_NTSC_J ||
729 tv_dac->tv_std == TV_STD_PAL_M ||
730 tv_dac->tv_std == TV_STD_PAL_60) {
731 tv_ftotal = NTSC_TV_VFTOTAL;
732 hor_timing = hor_timing_NTSC;
733 vert_timing = vert_timing_NTSC;
734 } else {
735 hor_timing = hor_timing_PAL;
736 vert_timing = vert_timing_PAL;
737 tv_ftotal = PAL_TV_VFTOTAL;
738 }
739
740 for (i = 0; i < MAX_H_CODE_TIMING_LEN; i++) {
741 if ((tv_dac->tv.h_code_timing[i] = hor_timing[i]) == 0)
742 break;
743 }
744
745 for (i = 0; i < MAX_V_CODE_TIMING_LEN; i++) {
746 if ((tv_dac->tv.v_code_timing[i] = vert_timing[i]) == 0)
747 break;
748 }
749
750 radeon_legacy_tv_init_restarts(encoder);
751
752 /* play with DAC_CNTL */
753 /* play with GPIOPAD_A */
754 /* DISP_OUTPUT_CNTL */
755 /* use reference freq */
756
757 /* program the TV registers */
758 WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST |
759 RADEON_CRT_ASYNC_RST | RADEON_TV_FIFO_ASYNC_RST));
760
761 tmp = RREG32(RADEON_TV_DAC_CNTL);
762 tmp &= ~RADEON_TV_DAC_NBLANK;
763 tmp |= RADEON_TV_DAC_BGSLEEP |
764 RADEON_TV_DAC_RDACPD |
765 RADEON_TV_DAC_GDACPD |
766 RADEON_TV_DAC_BDACPD;
767 WREG32(RADEON_TV_DAC_CNTL, tmp);
768
769 /* TV PLL */
770 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVCLK_SRC_SEL_TVPLL);
771 WREG32_PLL(RADEON_TV_PLL_CNTL, tv_pll_cntl);
772 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, RADEON_TVPLL_RESET, ~RADEON_TVPLL_RESET);
773
774 radeon_wait_pll_lock(encoder, 200, 800, 135);
775
776 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVPLL_RESET);
777
778 radeon_wait_pll_lock(encoder, 300, 160, 27);
779 radeon_wait_pll_lock(encoder, 200, 800, 135);
780
781 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~0xf);
782 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, RADEON_TVCLK_SRC_SEL_TVPLL, ~RADEON_TVCLK_SRC_SEL_TVPLL);
783
784 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, (1 << RADEON_TVPDC_SHIFT), ~RADEON_TVPDC_MASK);
785 WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVPLL_SLEEP);
786
787 /* TV HV */
788 WREG32(RADEON_TV_RGB_CNTL, tv_rgb_cntl);
789 WREG32(RADEON_TV_HTOTAL, const_ptr->hor_total - 1);
790 WREG32(RADEON_TV_HDISP, const_ptr->hor_resolution - 1);
791 WREG32(RADEON_TV_HSTART, const_ptr->hor_start);
792
793 WREG32(RADEON_TV_VTOTAL, const_ptr->ver_total - 1);
794 WREG32(RADEON_TV_VDISP, const_ptr->ver_resolution - 1);
795 WREG32(RADEON_TV_FTOTAL, tv_ftotal);
796 WREG32(RADEON_TV_VSCALER_CNTL1, tv_vscaler_cntl1);
797 WREG32(RADEON_TV_VSCALER_CNTL2, tv_vscaler_cntl2);
798
799 WREG32(RADEON_TV_Y_FALL_CNTL, tv_y_fall_cntl);
800 WREG32(RADEON_TV_Y_RISE_CNTL, tv_y_rise_cntl);
801 WREG32(RADEON_TV_Y_SAW_TOOTH_CNTL, tv_y_saw_tooth_cntl);
802
803 WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST |
804 RADEON_CRT_ASYNC_RST));
805
806 /* TV restarts */
807 radeon_legacy_write_tv_restarts(radeon_encoder);
808
809 /* tv timings */
810 radeon_restore_tv_timing_tables(radeon_encoder);
811
812 WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST));
813
814 /* tv std */
815 WREG32(RADEON_TV_SYNC_CNTL, (RADEON_SYNC_PUB | RADEON_TV_SYNC_IO_DRIVE));
816 WREG32(RADEON_TV_TIMING_CNTL, tv_dac->tv.timing_cntl);
817 WREG32(RADEON_TV_MODULATOR_CNTL1, tv_modulator_cntl1);
818 WREG32(RADEON_TV_MODULATOR_CNTL2, tv_modulator_cntl2);
819 WREG32(RADEON_TV_PRE_DAC_MUX_CNTL, (RADEON_Y_RED_EN |
820 RADEON_C_GRN_EN |
821 RADEON_CMP_BLU_EN |
822 RADEON_DAC_DITHER_EN));
823
824 WREG32(RADEON_TV_CRC_CNTL, 0);
825
826 WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl);
827
828 WREG32(RADEON_TV_GAIN_LIMIT_SETTINGS, ((0x17f << RADEON_UV_GAIN_LIMIT_SHIFT) |
829 (0x5ff << RADEON_Y_GAIN_LIMIT_SHIFT)));
830 WREG32(RADEON_TV_LINEAR_GAIN_SETTINGS, ((0x100 << RADEON_UV_GAIN_SHIFT) |
831 (0x100 << RADEON_Y_GAIN_SHIFT)));
832
833 WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
834
835 }
836
837 void radeon_legacy_tv_adjust_crtc_reg(struct drm_encoder *encoder,
838 uint32_t *h_total_disp, uint32_t *h_sync_strt_wid,
839 uint32_t *v_total_disp, uint32_t *v_sync_strt_wid)
840 {
841 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
842 const struct radeon_tv_mode_constants *const_ptr;
843 uint32_t tmp;
844
845 const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
846 if (!const_ptr)
847 return;
848
849 *h_total_disp = (((const_ptr->hor_resolution / 8) - 1) << RADEON_CRTC_H_DISP_SHIFT) |
850 (((const_ptr->hor_total / 8) - 1) << RADEON_CRTC_H_TOTAL_SHIFT);
851
852 tmp = *h_sync_strt_wid;
853 tmp &= ~(RADEON_CRTC_H_SYNC_STRT_PIX | RADEON_CRTC_H_SYNC_STRT_CHAR);
854 tmp |= (((const_ptr->hor_syncstart / 8) - 1) << RADEON_CRTC_H_SYNC_STRT_CHAR_SHIFT) |
855 (const_ptr->hor_syncstart & 7);
856 *h_sync_strt_wid = tmp;
857
858 *v_total_disp = ((const_ptr->ver_resolution - 1) << RADEON_CRTC_V_DISP_SHIFT) |
859 ((const_ptr->ver_total - 1) << RADEON_CRTC_V_TOTAL_SHIFT);
860
861 tmp = *v_sync_strt_wid;
862 tmp &= ~RADEON_CRTC_V_SYNC_STRT;
863 tmp |= ((const_ptr->ver_syncstart - 1) << RADEON_CRTC_V_SYNC_STRT_SHIFT);
864 *v_sync_strt_wid = tmp;
865 }
866
867 static int get_post_div(int value)
868 {
869 int post_div;
870 switch (value) {
871 case 1: post_div = 0; break;
872 case 2: post_div = 1; break;
873 case 3: post_div = 4; break;
874 case 4: post_div = 2; break;
875 case 6: post_div = 6; break;
876 case 8: post_div = 3; break;
877 case 12: post_div = 7; break;
878 case 16:
879 default: post_div = 5; break;
880 }
881 return post_div;
882 }
883
884 void radeon_legacy_tv_adjust_pll1(struct drm_encoder *encoder,
885 uint32_t *htotal_cntl, uint32_t *ppll_ref_div,
886 uint32_t *ppll_div_3, uint32_t *pixclks_cntl)
887 {
888 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
889 const struct radeon_tv_mode_constants *const_ptr;
890
891 const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
892 if (!const_ptr)
893 return;
894
895 *htotal_cntl = (const_ptr->hor_total & 0x7) | RADEON_HTOT_CNTL_VGA_EN;
896
897 *ppll_ref_div = const_ptr->crtcPLL_M;
898
899 *ppll_div_3 = (const_ptr->crtcPLL_N & 0x7ff) | (get_post_div(const_ptr->crtcPLL_post_div) << 16);
900 *pixclks_cntl &= ~(RADEON_PIX2CLK_SRC_SEL_MASK | RADEON_PIXCLK_TV_SRC_SEL);
901 *pixclks_cntl |= RADEON_PIX2CLK_SRC_SEL_P2PLLCLK;
902 }
903
904 void radeon_legacy_tv_adjust_pll2(struct drm_encoder *encoder,
905 uint32_t *htotal2_cntl, uint32_t *p2pll_ref_div,
906 uint32_t *p2pll_div_0, uint32_t *pixclks_cntl)
907 {
908 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
909 const struct radeon_tv_mode_constants *const_ptr;
910
911 const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
912 if (!const_ptr)
913 return;
914
915 *htotal2_cntl = (const_ptr->hor_total & 0x7);
916
917 *p2pll_ref_div = const_ptr->crtcPLL_M;
918
919 *p2pll_div_0 = (const_ptr->crtcPLL_N & 0x7ff) | (get_post_div(const_ptr->crtcPLL_post_div) << 16);
920 *pixclks_cntl &= ~RADEON_PIX2CLK_SRC_SEL_MASK;
921 *pixclks_cntl |= RADEON_PIX2CLK_SRC_SEL_P2PLLCLK | RADEON_PIXCLK_TV_SRC_SEL;
922 }
923