1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
|
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "xf86_ansic.h"
#include "i830.h"
#include "i830_bios.h"
#include "i830_display.h"
/** Returns the pixel clock for the given refclk and divisors. */
static int i830_clock(int refclk, int m1, int m2, int n, int p1, int p2)
{
return refclk * (5 * m1 + m2) / n / (p1 * p2);
}
static void
i830PrintPll(char *prefix, int refclk, int m1, int m2, int n, int p1, int p2)
{
int dotclock;
dotclock = i830_clock(refclk, m1, m2, n, p1, p2);
ErrorF("%s: dotclock %d ((%d, %d), %d, (%d, %d))\n", prefix, dotclock,
m1, m2, n, p1, p2);
}
/**
* Returns whether the given set of divisors are valid for a given refclk with
* the given outputs.
*
* The equation for these divisors would be:
* clk = refclk * (5 * m1 + m2) / n / (p1 * p2)
*/
static Bool
i830PllIsValid(ScrnInfoPtr pScrn, int outputs, int refclk, int m1, int m2,
int n, int p1, int p2)
{
I830Ptr pI830 = I830PTR(pScrn);
int p, m, vco, dotclock;
int min_m1, max_m1, min_m2, max_m2, min_m, max_m, min_n, max_n;
int min_p, max_p;
min_p = 5;
max_p = 80;
if (pI830->PciInfo->chipType >= PCI_CHIP_I915_G) {
min_m1 = 10;
max_m1 = 20;
min_m2 = 5;
max_m2 = 9;
min_m = 70;
max_m = 120;
min_n = 3;
max_n = 8;
if (outputs & PIPE_LCD_ACTIVE) {
min_p = 7;
max_p = 98;
}
} else {
min_m1 = 16;
max_m1 = 24;
min_m2 = 7;
max_m2 = 11;
min_m = 90;
max_m = 130;
min_n = 4;
max_n = 8;
if (outputs & PIPE_LCD_ACTIVE) {
min_n = 3;
min_m = 88;
}
}
p = p1 * p2;
m = 5 * m1 + m2;
vco = refclk * m / n;
dotclock = i830_clock(refclk, m1, m2, n, p1, p2);
if (p1 < 1 || p1 > 8)
return FALSE;
if (p < min_p || p > max_p)
return FALSE;
if (m2 < min_m2 || m2 > max_m2)
return FALSE;
if (m1 < min_m1 || m1 > max_m1)
return FALSE;
if (m1 <= m2)
return FALSE;
if (m < min_m || m > max_m)
return FALSE;
if (n < min_n || n > max_n)
return FALSE;
if (vco < 1400000 || vco > 2800000)
return FALSE;
/* XXX: We may need to be checking "Dot clock" depending on the multiplier,
* output, etc., rather than just a single range.
*/
if (dotclock < 20000 || dotclock > 400000)
return FALSE;
return TRUE;
}
#if 0
int
i830ReadAndReportPLL(ScrnInfoPtr pScrn)
{
I830Ptr pI830 = I830PTR(pScrn);
CARD32 temp, dpll;
int refclk, m1, m2, n, p1, p2;
refclk = 96000; /* XXX: The refclk may be 100000 for the LVDS */
dpll = INREG(DPLL_A);
switch ((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> 16) {
case 0x01:
p1 = 1;
break;
case 0x02:
p1 = 2;
break;
case 0x04:
p1 = 3;
break;
case 0x08:
p1 = 4;
break;
case 0x10:
p1 = 5;
break;
case 0x20:
p1 = 6;
break;
case 0x40:
p1 = 7;
break;
case 0x80:
p1 = 8;
break;
default:
FatalError("Unknown p1 clock div: 0x%x\n",
dpll & DPLL_FPA01_P1_POST_DIV_MASK);
}
switch (dpll & DPLL_P2_CLOCK_DIV_MASK) {
case DPLL_DAC_SERIAL_P2_CLOCK_DIV_5:
p2 = 5;
break;
case DPLL_DAC_SERIAL_P2_CLOCK_DIV_10:
p2 = 10;
break;
/* XXX:
case DPLLB_LVDS_P2_CLOCK_DIV_7:
p2 = 7;
break;
case DPLLB_LVDS_P2_CLOCK_DIV_14:
p2 = 14;
break;
*/
default:
FatalError("Unknown p2 clock div: 0x%x\n", dpll & DPLL_P2_CLOCK_DIV_MASK);
}
if (dpll & DISPLAY_RATE_SELECT_FPA1)
temp = INREG(FPA1);
else
temp = INREG(FPA0);
n = (temp & FP_N_DIV_MASK) >> 16;
m1 = (temp & FP_M1_DIV_MASK) >> 8;
m2 = (temp & FP_M2_DIV_MASK);
i830PrintPll("FPA", refclk, m1, m2, n, p1, p2);
ErrorF("clock settings for FPA0 look %s\n",
i830PllIsValid(refclk, m1, m2, n, p1, p2) ? "good" : "bad");
ErrorF("clock regs: 0x%08x, 0x%08x\n", dpll, temp);
}
#endif
/**
* Returns a set of divisors for the desired target clock with the given refclk,
* or FALSE. Divisor values are the actual divisors for
* clk = refclk * (5 * m1 + m2) / n / (p1 * p2)
*/
static Bool
i830FindBestPLL(ScrnInfoPtr pScrn, int outputs, int target, int refclk,
int *outm1, int *outm2, int *outn, int *outp1, int *outp2)
{
I830Ptr pI830 = I830PTR(pScrn);
int m1, m2, n, p1, p2;
int err = target;
int min_m1, max_m1, min_m2, max_m2;
if (pI830->PciInfo->chipType >= PCI_CHIP_I915_G) {
min_m1 = 10;
max_m1 = 20;
min_m2 = 5;
max_m2 = 9;
} else {
min_m1 = 16;
max_m1 = 24;
min_m2 = 7;
max_m2 = 11;
}
if (outputs & PIPE_LCD_ACTIVE) {
if (target < 200000) /* XXX: Is this the right cutoff? */
p2 = 14;
else
p2 = 7;
} else {
if (target < 200000)
p2 = 10;
else
p2 = 5;
}
for (m1 = min_m1; m1 <= max_m1; m1++) {
for (m2 = min_m2; m2 < max_m2; m2++) {
for (n = 3; n <= 8; n++) {
for (p1 = 1; p1 <= 8; p1++) {
int clock, this_err;
if (!i830PllIsValid(pScrn, outputs, refclk, m1, m2, n,
p1, p2)) {
continue;
}
clock = i830_clock(refclk, m1, m2, n, p1, p2);
this_err = abs(clock - target);
if (this_err < err) {
*outm1 = m1;
*outm2 = m2;
*outn = n;
*outp1 = p1;
*outp2 = p2;
err = this_err;
}
}
}
}
}
return (err != target);
}
static void
i830WaitForVblank(ScrnInfoPtr pScreen)
{
/* Wait for 20ms, i.e. one cycle at 50hz. */
usleep(20000);
}
void
i830PipeSetBase(ScrnInfoPtr pScrn, int pipe, int x, int y)
{
I830Ptr pI830 = I830PTR(pScrn);
unsigned long Start;
if (I830IsPrimary(pScrn))
Start = pI830->FrontBuffer.Start;
else {
I830Ptr pI8301 = I830PTR(pI830->entityPrivate->pScrn_1);
Start = pI8301->FrontBuffer2.Start;
}
if (pipe == 0)
OUTREG(DSPABASE, Start + ((y * pScrn->displayWidth + x) * pI830->cpp));
else
OUTREG(DSPBBASE, Start + ((y * pScrn->displayWidth + x) * pI830->cpp));
}
/**
* Sets the given video mode on the given pipe. Assumes that plane A feeds
* pipe A, and plane B feeds pipe B. Should not affect the other planes/pipes.
*/
static Bool
i830PipeSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode, int pipe)
{
I830Ptr pI830 = I830PTR(pScrn);
int m1, m2, n, p1, p2;
CARD32 dpll = 0, fp = 0, temp;
CARD32 htot, hblank, hsync, vtot, vblank, vsync, dspcntr;
CARD32 pipesrc, dspsize, adpa;
Bool ok;
int refclk = 96000;
int outputs;
ErrorF("Requested pix clock: %d\n", pMode->Clock);
if (pipe == 0)
outputs = pI830->operatingDevices & 0xff;
else
outputs = (pI830->operatingDevices >> 8) & 0xff;
if ((outputs & PIPE_LCD_ACTIVE) && (outputs & ~PIPE_LCD_ACTIVE)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Can't enable LVDS and non-LVDS on the same pipe\n");
return FALSE;
}
if (((outputs & PIPE_TV_ACTIVE) && (outputs & ~PIPE_TV_ACTIVE)) ||
((outputs & PIPE_TV2_ACTIVE) && (outputs & ~PIPE_TV2_ACTIVE))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Can't enable a TV and any other output on the same pipe\n");
return FALSE;
}
if (pipe == 0 && (outputs & PIPE_LCD_ACTIVE)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Can't support LVDS on pipe A\n");
return FALSE;
}
ok = i830FindBestPLL(pScrn, outputs, pMode->Clock, refclk, &m1, &m2, &n,
&p1, &p2);
if (!ok) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Couldn't find PLL settings for mode!\n");
return FALSE;
}
dpll = DPLL_VCO_ENABLE | DPLL_VGA_MODE_DIS;
if (outputs & PIPE_LCD_ACTIVE)
dpll |= DPLLB_MODE_LVDS;
else
dpll |= DPLLB_MODE_DAC_SERIAL;
dpll |= (1 << (p1 - 1)) << 16;
switch (p2) {
case 5:
dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
break;
case 7:
dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
break;
case 10:
dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
break;
case 14:
dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
break;
}
if (outputs & (PIPE_TV_ACTIVE | PIPE_TV2_ACTIVE))
dpll |= PLL_REF_INPUT_TVCLKIN;
else
dpll |= PLL_REF_INPUT_DREFCLK;
dpll |= SDV0_DEFAULT_MULTIPLIER;
fp = ((n - 2) << 16) | ((m1 - 2) << 8) | (m2 - 2);
htot = (pMode->CrtcHDisplay - 1) | ((pMode->CrtcHTotal - 1) << 16);
hblank = (pMode->CrtcHBlankStart - 1) | ((pMode->CrtcHBlankEnd - 1) << 16);
hsync = (pMode->CrtcHSyncStart - 1) | ((pMode->CrtcHSyncEnd - 1) << 16);
vtot = (pMode->CrtcVDisplay - 1) | ((pMode->CrtcVTotal - 1) << 16);
vblank = (pMode->CrtcVBlankStart - 1) | ((pMode->CrtcVBlankEnd - 1) << 16);
vsync = (pMode->CrtcVSyncStart - 1) | ((pMode->CrtcVSyncEnd - 1) << 16);
pipesrc = ((pMode->HDisplay - 1) << 16) | (pMode->VDisplay - 1);
dspsize = ((pMode->VDisplay - 1) << 16) | (pMode->HDisplay - 1);
if (outputs & PIPE_LCD_ACTIVE && i830GetLVDSInfoFromBIOS(pScrn) &&
pI830->panel_fixed_hactive != 0)
{
/* To enable panel fitting, we need to set the pipe timings to that of
* the screen at its full resolution. So, drop the timings from the
* BIOS VBT tables here.
*/
htot = (pI830->panel_fixed_hactive - 1) |
((pI830->panel_fixed_hactive + pI830->panel_fixed_hblank - 1)
<< 16);
hblank = (pI830->panel_fixed_hactive - 1) |
((pI830->panel_fixed_hactive + pI830->panel_fixed_hblank - 1)
<< 16);
hsync = (pI830->panel_fixed_hactive + pI830->panel_fixed_hsyncoff - 1) |
((pI830->panel_fixed_hactive + pI830->panel_fixed_hsyncoff +
pI830->panel_fixed_hsyncwidth - 1) << 16);
vtot = (pI830->panel_fixed_vactive - 1) |
((pI830->panel_fixed_vactive + pI830->panel_fixed_vblank - 1)
<< 16);
vblank = (pI830->panel_fixed_vactive - 1) |
((pI830->panel_fixed_vactive + pI830->panel_fixed_vblank - 1)
<< 16);
vsync = (pI830->panel_fixed_vactive + pI830->panel_fixed_vsyncoff - 1) |
((pI830->panel_fixed_vactive + pI830->panel_fixed_vsyncoff +
pI830->panel_fixed_vsyncwidth - 1) << 16);
}
#if 0
ErrorF("htot: 0x%08x, hblank: 0x%08x, hsync: 0x%08x\n", htot, hblank, hsync);
ErrorF("vtot: 0x%08x, vblank: 0x%08x, vsync: 0x%08x\n", vtot, vblank, vsync);
#endif
adpa = INREG(ADPA);
adpa &= ~(ADPA_HSYNC_ACTIVE_HIGH | ADPA_VSYNC_ACTIVE_HIGH);
adpa &= ~(ADPA_VSYNC_CNTL_DISABLE | ADPA_HSYNC_CNTL_DISABLE);
adpa |= ADPA_DAC_ENABLE;
if (pMode->Flags & V_PHSYNC)
adpa |= ADPA_HSYNC_ACTIVE_HIGH;
if (pMode->Flags & V_PVSYNC)
adpa |= ADPA_VSYNC_ACTIVE_HIGH;
i830PrintPll("chosen", refclk, m1, m2, n, p1, p2);
ErrorF("clock settings for chosen look %s\n",
i830PllIsValid(pScrn, outputs, refclk, m1, m2, n, p1, p2) ?
"good" : "bad");
ErrorF("clock regs: 0x%08x, 0x%08x\n", (int)dpll, (int)fp);
dspcntr = DISPLAY_PLANE_ENABLE;
switch (pScrn->bitsPerPixel) {
case 8:
dspcntr |= DISPPLANE_8BPP | DISPPLANE_GAMMA_ENABLE;
break;
case 16:
if (pScrn->depth == 15)
dspcntr |= DISPPLANE_15_16BPP;
else
dspcntr |= DISPPLANE_16BPP;
break;
case 32:
dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
break;
default:
FatalError("unknown display bpp\n");
}
adpa = ADPA_DAC_ENABLE;
if (pMode->Flags & V_PHSYNC)
adpa |= ADPA_HSYNC_ACTIVE_HIGH;
if (pMode->Flags & V_PVSYNC)
adpa |= ADPA_VSYNC_ACTIVE_HIGH;
if (pipe == 0) {
dspcntr |= DISPPLANE_SEL_PIPE_A;
adpa |= ADPA_PIPE_A_SELECT;
} else {
dspcntr |= DISPPLANE_SEL_PIPE_B;
adpa |= ADPA_PIPE_B_SELECT;
}
OUTREG(VGACNTRL, VGA_DISP_DISABLE);
/* Set up display timings and PLLs for the pipe. */
if (pipe == 0) {
/* First, disable display planes */
temp = INREG(DSPACNTR);
OUTREG(DSPACNTR, temp & ~DISPLAY_PLANE_ENABLE);
/* Wait for vblank for the disable to take effect */
i830WaitForVblank(pScrn);
/* Next, disable display pipes */
temp = INREG(PIPEACONF);
OUTREG(PIPEACONF, temp & ~PIPEACONF_ENABLE);
OUTREG(FPA0, fp);
OUTREG(DPLL_A, dpll);
OUTREG(HTOTAL_A, htot);
OUTREG(HBLANK_A, hblank);
OUTREG(HSYNC_A, hsync);
OUTREG(VTOTAL_A, vtot);
OUTREG(VBLANK_A, vblank);
OUTREG(VSYNC_A, vsync);
OUTREG(DSPASTRIDE, pScrn->displayWidth * pI830->cpp);
OUTREG(DSPASIZE, dspsize);
OUTREG(DSPAPOS, 0);
i830PipeSetBase(pScrn, pipe, pScrn->frameX0, pScrn->frameY0);
OUTREG(PIPEASRC, pipesrc);
/* Then, turn the pipe on first */
temp = INREG(PIPEACONF);
OUTREG(PIPEACONF, temp | PIPEACONF_ENABLE);
/* And then turn the plane on */
OUTREG(DSPACNTR, dspcntr);
} else {
/* Always make sure the LVDS is off before we play with DPLLs and pipe
* configuration.
*/
i830SetLVDSPanelPower(pScrn, FALSE);
/* First, disable display planes */
temp = INREG(DSPBCNTR);
OUTREG(DSPBCNTR, temp & ~DISPLAY_PLANE_ENABLE);
/* Wait for vblank for the disable to take effect */
i830WaitForVblank(pScrn);
/* Next, disable display pipes */
temp = INREG(PIPEBCONF);
OUTREG(PIPEBCONF, temp & ~PIPEBCONF_ENABLE);
if (outputs & PIPE_LCD_ACTIVE) {
/* Disable the PLL before messing with LVDS enable */
OUTREG(FPB0, fp & ~DPLL_VCO_ENABLE);
/* LVDS must be powered on before PLL is enabled and before power
* sequencing the panel.
*/
temp = INREG(LVDS);
OUTREG(LVDS, temp | LVDS_PORT_EN | LVDS_PIPEB_SELECT);
}
OUTREG(FPB0, fp);
OUTREG(DPLL_B, dpll);
OUTREG(HTOTAL_B, htot);
OUTREG(HBLANK_B, hblank);
OUTREG(HSYNC_B, hsync);
OUTREG(VTOTAL_B, vtot);
OUTREG(VBLANK_B, vblank);
OUTREG(VSYNC_B, vsync);
OUTREG(DSPBSTRIDE, pScrn->displayWidth * pI830->cpp);
OUTREG(DSPBSIZE, dspsize);
OUTREG(DSPBPOS, 0);
i830PipeSetBase(pScrn, pipe, pScrn->frameX0, pScrn->frameY0);
OUTREG(PIPEBSRC, pipesrc);
if (outputs & PIPE_LCD_ACTIVE) {
CARD32 pfit_control;
/* Enable automatic panel scaling so that non-native modes fill the
* screen.
*/
/* XXX: Allow (auto-?) enabling of 8-to-6 dithering */
pfit_control = (PFIT_ENABLE |
VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
VERT_INTERP_BILINEAR | HORIZ_INTERP_BILINEAR);
if (pI830->panel_wants_dither)
pfit_control |= PANEL_8TO6_DITHER_ENABLE;
OUTREG(PFIT_CONTROL, pfit_control);
}
/* Then, turn the pipe on first */
temp = INREG(PIPEBCONF);
OUTREG(PIPEBCONF, temp | PIPEBCONF_ENABLE);
/* And then turn the plane on */
OUTREG(DSPBCNTR, dspcntr);
if (outputs & PIPE_LCD_ACTIVE) {
i830SetLVDSPanelPower(pScrn, TRUE);
}
}
if (outputs & PIPE_CRT_ACTIVE)
OUTREG(ADPA, adpa);
return TRUE;
}
/**
* This function sets the given mode on the active pipes.
*/
Bool
i830SetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode)
{
I830Ptr pI830 = I830PTR(pScrn);
Bool ok = TRUE;
CARD32 planeA, planeB;
#ifdef XF86DRI
Bool didLock = FALSE;
#endif
DPRINTF(PFX, "i830SetMode\n");
#ifdef XF86DRI
didLock = I830DRILock(pScrn);
#endif
if (pI830->operatingDevices & 0xff) {
pI830->planeEnabled[0] = 1;
} else {
pI830->planeEnabled[0] = 0;
}
if (pI830->operatingDevices & 0xff00) {
pI830->planeEnabled[1] = 1;
} else {
pI830->planeEnabled[1] = 0;
}
if (pI830->planeEnabled[0]) {
ok = i830PipeSetMode(pScrn, pMode, 0);
if (!ok)
goto done;
}
if (pI830->planeEnabled[1]) {
ok = i830PipeSetMode(pScrn, pMode, 1);
if (!ok)
goto done;
}
xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Mode bandwidth is %d Mpixel/s\n",
(int)(pMode->HDisplay * pMode->VDisplay *
pMode->VRefresh / 1000000));
planeA = INREG(DSPACNTR);
planeB = INREG(DSPBCNTR);
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Display plane A is now %s and connected to %s.\n",
pI830->planeEnabled[0] ? "enabled" : "disabled",
planeA & DISPPLANE_SEL_PIPE_MASK ? "Pipe B" : "Pipe A");
if (pI830->availablePipes == 2)
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Display plane B is now %s and connected to %s.\n",
pI830->planeEnabled[1] ? "enabled" : "disabled",
planeB & DISPPLANE_SEL_PIPE_MASK ? "Pipe B" : "Pipe A");
done:
#ifdef XF86DRI
if (didLock)
I830DRIUnlock(pScrn);
#endif
return ok;
}
Bool
i830DetectCRT(ScrnInfoPtr pScrn)
{
I830Ptr pI830 = I830PTR(pScrn);
CARD32 temp;
temp = INREG(PORT_HOTPLUG_EN);
OUTREG(PORT_HOTPLUG_EN, temp | CRT_HOTPLUG_FORCE_DETECT);
/* Wait for the bit to clear to signal detection finished. */
while (INREG(PORT_HOTPLUG_EN) & CRT_HOTPLUG_FORCE_DETECT)
;
return ((INREG(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_INT_STATUS));
}
/**
* Sets the power state for the panel.
*/
void
i830SetLVDSPanelPower(ScrnInfoPtr pScrn, Bool on)
{
I830Ptr pI830 = I830PTR(pScrn);
CARD32 pp_status, pp_control;
if (on) {
OUTREG(PP_STATUS, INREG(PP_STATUS) | PP_ON);
OUTREG(PP_CONTROL, INREG(PP_CONTROL) | POWER_TARGET_ON);
do {
pp_status = INREG(PP_STATUS);
pp_control = INREG(PP_CONTROL);
} while (!(pp_status & PP_ON) && !(pp_control & POWER_TARGET_ON));
} else {
OUTREG(PP_STATUS, INREG(PP_STATUS) & ~PP_ON);
OUTREG(PP_CONTROL, INREG(PP_CONTROL) & ~POWER_TARGET_ON);
do {
pp_status = INREG(PP_STATUS);
pp_control = INREG(PP_CONTROL);
} while ((pp_status & PP_ON) || (pp_control & POWER_TARGET_ON));
}
}
|