1 /*
2 * Copyright © 2006-2007 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 */
26
27 #include <linux/dmi.h>
28 #include <linux/i2c.h>
29 #include <linux/slab.h>
30 #include "drmP.h"
31 #include "drm.h"
32 #include "drm_crtc.h"
33 #include "drm_crtc_helper.h"
34 #include "drm_edid.h"
35 #include "intel_drv.h"
36 #include "i915_drm.h"
37 #include "i915_drv.h"
38
39 /* Here's the desired hotplug mode */
40 #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \
41 ADPA_CRT_HOTPLUG_WARMUP_10MS | \
42 ADPA_CRT_HOTPLUG_SAMPLE_4S | \
43 ADPA_CRT_HOTPLUG_VOLTAGE_50 | \
44 ADPA_CRT_HOTPLUG_VOLREF_325MV | \
45 ADPA_CRT_HOTPLUG_ENABLE)
46
47 struct intel_crt {
48 struct intel_encoder base;
49 bool force_hotplug_required;
50 };
51
intel_attached_crt(struct drm_connector * connector)52 static struct intel_crt *intel_attached_crt(struct drm_connector *connector)
53 {
54 return container_of(intel_attached_encoder(connector),
55 struct intel_crt, base);
56 }
57
intel_crt_dpms(struct drm_encoder * encoder,int mode)58 static void intel_crt_dpms(struct drm_encoder *encoder, int mode)
59 {
60 struct drm_device *dev = encoder->dev;
61 struct drm_i915_private *dev_priv = dev->dev_private;
62 u32 temp, reg;
63
64 if (HAS_PCH_SPLIT(dev))
65 reg = PCH_ADPA;
66 else
67 reg = ADPA;
68
69 temp = I915_READ(reg);
70 temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
71 temp &= ~ADPA_DAC_ENABLE;
72
73 switch (mode) {
74 case DRM_MODE_DPMS_ON:
75 temp |= ADPA_DAC_ENABLE;
76 break;
77 case DRM_MODE_DPMS_STANDBY:
78 temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE;
79 break;
80 case DRM_MODE_DPMS_SUSPEND:
81 temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE;
82 break;
83 case DRM_MODE_DPMS_OFF:
84 temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
85 break;
86 }
87
88 I915_WRITE(reg, temp);
89 }
90
intel_crt_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)91 static int intel_crt_mode_valid(struct drm_connector *connector,
92 struct drm_display_mode *mode)
93 {
94 struct drm_device *dev = connector->dev;
95
96 int max_clock = 0;
97 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
98 return MODE_NO_DBLESCAN;
99
100 if (mode->clock < 25000)
101 return MODE_CLOCK_LOW;
102
103 if (IS_GEN2(dev))
104 max_clock = 350000;
105 else
106 max_clock = 400000;
107 if (mode->clock > max_clock)
108 return MODE_CLOCK_HIGH;
109
110 return MODE_OK;
111 }
112
intel_crt_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)113 static bool intel_crt_mode_fixup(struct drm_encoder *encoder,
114 struct drm_display_mode *mode,
115 struct drm_display_mode *adjusted_mode)
116 {
117 return true;
118 }
119
intel_crt_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)120 static void intel_crt_mode_set(struct drm_encoder *encoder,
121 struct drm_display_mode *mode,
122 struct drm_display_mode *adjusted_mode)
123 {
124
125 struct drm_device *dev = encoder->dev;
126 struct drm_crtc *crtc = encoder->crtc;
127 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
128 struct drm_i915_private *dev_priv = dev->dev_private;
129 int dpll_md_reg;
130 u32 adpa, dpll_md;
131 u32 adpa_reg;
132
133 dpll_md_reg = DPLL_MD(intel_crtc->pipe);
134
135 if (HAS_PCH_SPLIT(dev))
136 adpa_reg = PCH_ADPA;
137 else
138 adpa_reg = ADPA;
139
140 /*
141 * Disable separate mode multiplier used when cloning SDVO to CRT
142 * XXX this needs to be adjusted when we really are cloning
143 */
144 if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) {
145 dpll_md = I915_READ(dpll_md_reg);
146 I915_WRITE(dpll_md_reg,
147 dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK);
148 }
149
150 adpa = ADPA_HOTPLUG_BITS;
151 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
152 adpa |= ADPA_HSYNC_ACTIVE_HIGH;
153 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
154 adpa |= ADPA_VSYNC_ACTIVE_HIGH;
155
156 /* For CPT allow 3 pipe config, for others just use A or B */
157 if (HAS_PCH_CPT(dev))
158 adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe);
159 else if (intel_crtc->pipe == 0)
160 adpa |= ADPA_PIPE_A_SELECT;
161 else
162 adpa |= ADPA_PIPE_B_SELECT;
163
164 if (!HAS_PCH_SPLIT(dev))
165 I915_WRITE(BCLRPAT(intel_crtc->pipe), 0);
166
167 I915_WRITE(adpa_reg, adpa);
168 }
169
intel_ironlake_crt_detect_hotplug(struct drm_connector * connector)170 static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector)
171 {
172 struct drm_device *dev = connector->dev;
173 struct intel_crt *crt = intel_attached_crt(connector);
174 struct drm_i915_private *dev_priv = dev->dev_private;
175 u32 adpa;
176 bool ret;
177
178 /* The first time through, trigger an explicit detection cycle */
179 if (crt->force_hotplug_required) {
180 bool turn_off_dac = HAS_PCH_SPLIT(dev);
181 u32 save_adpa;
182
183 crt->force_hotplug_required = 0;
184
185 save_adpa = adpa = I915_READ(PCH_ADPA);
186 DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa);
187
188 adpa |= ADPA_CRT_HOTPLUG_FORCE_TRIGGER;
189 if (turn_off_dac)
190 adpa &= ~ADPA_DAC_ENABLE;
191
192 I915_WRITE(PCH_ADPA, adpa);
193
194 if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0,
195 1000))
196 DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
197
198 if (turn_off_dac) {
199 I915_WRITE(PCH_ADPA, save_adpa);
200 POSTING_READ(PCH_ADPA);
201 }
202 }
203
204 /* Check the status to see if both blue and green are on now */
205 adpa = I915_READ(PCH_ADPA);
206 if ((adpa & ADPA_CRT_HOTPLUG_MONITOR_MASK) != 0)
207 ret = true;
208 else
209 ret = false;
210 DRM_DEBUG_KMS("ironlake hotplug adpa=0x%x, result %d\n", adpa, ret);
211
212 return ret;
213 }
214
215 /**
216 * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.
217 *
218 * Not for i915G/i915GM
219 *
220 * \return true if CRT is connected.
221 * \return false if CRT is disconnected.
222 */
intel_crt_detect_hotplug(struct drm_connector * connector)223 static bool intel_crt_detect_hotplug(struct drm_connector *connector)
224 {
225 struct drm_device *dev = connector->dev;
226 struct drm_i915_private *dev_priv = dev->dev_private;
227 u32 hotplug_en, orig, stat;
228 bool ret = false;
229 int i, tries = 0;
230
231 if (HAS_PCH_SPLIT(dev))
232 return intel_ironlake_crt_detect_hotplug(connector);
233
234 /*
235 * On 4 series desktop, CRT detect sequence need to be done twice
236 * to get a reliable result.
237 */
238
239 if (IS_G4X(dev) && !IS_GM45(dev))
240 tries = 2;
241 else
242 tries = 1;
243 hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN);
244 hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
245
246 for (i = 0; i < tries ; i++) {
247 /* turn on the FORCE_DETECT */
248 I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
249 /* wait for FORCE_DETECT to go off */
250 if (wait_for((I915_READ(PORT_HOTPLUG_EN) &
251 CRT_HOTPLUG_FORCE_DETECT) == 0,
252 1000))
253 DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off");
254 }
255
256 stat = I915_READ(PORT_HOTPLUG_STAT);
257 if ((stat & CRT_HOTPLUG_MONITOR_MASK) != CRT_HOTPLUG_MONITOR_NONE)
258 ret = true;
259
260 /* clear the interrupt we just generated, if any */
261 I915_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS);
262
263 /* and put the bits back */
264 I915_WRITE(PORT_HOTPLUG_EN, orig);
265
266 return ret;
267 }
268
intel_crt_get_edid(struct drm_connector * connector,struct i2c_adapter * i2c)269 static struct edid *intel_crt_get_edid(struct drm_connector *connector,
270 struct i2c_adapter *i2c)
271 {
272 struct edid *edid;
273
274 edid = drm_get_edid(connector, i2c);
275
276 if (!edid && !intel_gmbus_is_forced_bit(i2c)) {
277 DRM_DEBUG_KMS("CRT GMBUS EDID read failed, retry using GPIO bit-banging\n");
278 intel_gmbus_force_bit(i2c, true);
279 edid = drm_get_edid(connector, i2c);
280 intel_gmbus_force_bit(i2c, false);
281 }
282
283 return edid;
284 }
285
286 /* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */
intel_crt_ddc_get_modes(struct drm_connector * connector,struct i2c_adapter * adapter)287 static int intel_crt_ddc_get_modes(struct drm_connector *connector,
288 struct i2c_adapter *adapter)
289 {
290 struct edid *edid;
291
292 edid = intel_crt_get_edid(connector, adapter);
293 if (!edid)
294 return 0;
295
296 return intel_connector_update_modes(connector, edid);
297 }
298
intel_crt_detect_ddc(struct drm_connector * connector)299 static bool intel_crt_detect_ddc(struct drm_connector *connector)
300 {
301 struct intel_crt *crt = intel_attached_crt(connector);
302 struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private;
303
304 /* CRT should always be at 0, but check anyway */
305 if (crt->base.type != INTEL_OUTPUT_ANALOG)
306 return false;
307
308 if (intel_ddc_probe(&crt->base, dev_priv->crt_ddc_pin)) {
309 struct edid *edid;
310 bool is_digital = false;
311
312 edid = intel_crt_get_edid(connector,
313 &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
314 /*
315 * This may be a DVI-I connector with a shared DDC
316 * link between analog and digital outputs, so we
317 * have to check the EDID input spec of the attached device.
318 *
319 * On the other hand, what should we do if it is a broken EDID?
320 */
321 if (edid != NULL) {
322 is_digital = edid->input & DRM_EDID_INPUT_DIGITAL;
323 connector->display_info.raw_edid = NULL;
324 kfree(edid);
325 }
326
327 if (!is_digital) {
328 DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
329 return true;
330 } else {
331 DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
332 }
333 }
334
335 return false;
336 }
337
338 static enum drm_connector_status
intel_crt_load_detect(struct intel_crt * crt)339 intel_crt_load_detect(struct intel_crt *crt)
340 {
341 struct drm_device *dev = crt->base.base.dev;
342 struct drm_i915_private *dev_priv = dev->dev_private;
343 uint32_t pipe = to_intel_crtc(crt->base.base.crtc)->pipe;
344 uint32_t save_bclrpat;
345 uint32_t save_vtotal;
346 uint32_t vtotal, vactive;
347 uint32_t vsample;
348 uint32_t vblank, vblank_start, vblank_end;
349 uint32_t dsl;
350 uint32_t bclrpat_reg;
351 uint32_t vtotal_reg;
352 uint32_t vblank_reg;
353 uint32_t vsync_reg;
354 uint32_t pipeconf_reg;
355 uint32_t pipe_dsl_reg;
356 uint8_t st00;
357 enum drm_connector_status status;
358
359 DRM_DEBUG_KMS("starting load-detect on CRT\n");
360
361 bclrpat_reg = BCLRPAT(pipe);
362 vtotal_reg = VTOTAL(pipe);
363 vblank_reg = VBLANK(pipe);
364 vsync_reg = VSYNC(pipe);
365 pipeconf_reg = PIPECONF(pipe);
366 pipe_dsl_reg = PIPEDSL(pipe);
367
368 save_bclrpat = I915_READ(bclrpat_reg);
369 save_vtotal = I915_READ(vtotal_reg);
370 vblank = I915_READ(vblank_reg);
371
372 vtotal = ((save_vtotal >> 16) & 0xfff) + 1;
373 vactive = (save_vtotal & 0x7ff) + 1;
374
375 vblank_start = (vblank & 0xfff) + 1;
376 vblank_end = ((vblank >> 16) & 0xfff) + 1;
377
378 /* Set the border color to purple. */
379 I915_WRITE(bclrpat_reg, 0x500050);
380
381 if (!IS_GEN2(dev)) {
382 uint32_t pipeconf = I915_READ(pipeconf_reg);
383 I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER);
384 POSTING_READ(pipeconf_reg);
385 /* Wait for next Vblank to substitue
386 * border color for Color info */
387 intel_wait_for_vblank(dev, pipe);
388 st00 = I915_READ8(VGA_MSR_WRITE);
389 status = ((st00 & (1 << 4)) != 0) ?
390 connector_status_connected :
391 connector_status_disconnected;
392
393 I915_WRITE(pipeconf_reg, pipeconf);
394 } else {
395 bool restore_vblank = false;
396 int count, detect;
397
398 /*
399 * If there isn't any border, add some.
400 * Yes, this will flicker
401 */
402 if (vblank_start <= vactive && vblank_end >= vtotal) {
403 uint32_t vsync = I915_READ(vsync_reg);
404 uint32_t vsync_start = (vsync & 0xffff) + 1;
405
406 vblank_start = vsync_start;
407 I915_WRITE(vblank_reg,
408 (vblank_start - 1) |
409 ((vblank_end - 1) << 16));
410 restore_vblank = true;
411 }
412 /* sample in the vertical border, selecting the larger one */
413 if (vblank_start - vactive >= vtotal - vblank_end)
414 vsample = (vblank_start + vactive) >> 1;
415 else
416 vsample = (vtotal + vblank_end) >> 1;
417
418 /*
419 * Wait for the border to be displayed
420 */
421 while (I915_READ(pipe_dsl_reg) >= vactive)
422 ;
423 while ((dsl = I915_READ(pipe_dsl_reg)) <= vsample)
424 ;
425 /*
426 * Watch ST00 for an entire scanline
427 */
428 detect = 0;
429 count = 0;
430 do {
431 count++;
432 /* Read the ST00 VGA status register */
433 st00 = I915_READ8(VGA_MSR_WRITE);
434 if (st00 & (1 << 4))
435 detect++;
436 } while ((I915_READ(pipe_dsl_reg) == dsl));
437
438 /* restore vblank if necessary */
439 if (restore_vblank)
440 I915_WRITE(vblank_reg, vblank);
441 /*
442 * If more than 3/4 of the scanline detected a monitor,
443 * then it is assumed to be present. This works even on i830,
444 * where there isn't any way to force the border color across
445 * the screen
446 */
447 status = detect * 4 > count * 3 ?
448 connector_status_connected :
449 connector_status_disconnected;
450 }
451
452 /* Restore previous settings */
453 I915_WRITE(bclrpat_reg, save_bclrpat);
454
455 return status;
456 }
457
458 static enum drm_connector_status
intel_crt_detect(struct drm_connector * connector,bool force)459 intel_crt_detect(struct drm_connector *connector, bool force)
460 {
461 struct drm_device *dev = connector->dev;
462 struct intel_crt *crt = intel_attached_crt(connector);
463 enum drm_connector_status status;
464 struct intel_load_detect_pipe tmp;
465
466 if (I915_HAS_HOTPLUG(dev)) {
467 if (intel_crt_detect_hotplug(connector)) {
468 DRM_DEBUG_KMS("CRT detected via hotplug\n");
469 return connector_status_connected;
470 } else {
471 DRM_DEBUG_KMS("CRT not detected via hotplug\n");
472 return connector_status_disconnected;
473 }
474 }
475
476 if (intel_crt_detect_ddc(connector))
477 return connector_status_connected;
478
479 if (!force)
480 return connector->status;
481
482 /* for pre-945g platforms use load detect */
483 if (intel_get_load_detect_pipe(&crt->base, connector, NULL,
484 &tmp)) {
485 if (intel_crt_detect_ddc(connector))
486 status = connector_status_connected;
487 else
488 status = intel_crt_load_detect(crt);
489 intel_release_load_detect_pipe(&crt->base, connector,
490 &tmp);
491 } else
492 status = connector_status_unknown;
493
494 return status;
495 }
496
intel_crt_destroy(struct drm_connector * connector)497 static void intel_crt_destroy(struct drm_connector *connector)
498 {
499 drm_sysfs_connector_remove(connector);
500 drm_connector_cleanup(connector);
501 kfree(connector);
502 }
503
intel_crt_get_modes(struct drm_connector * connector)504 static int intel_crt_get_modes(struct drm_connector *connector)
505 {
506 struct drm_device *dev = connector->dev;
507 struct drm_i915_private *dev_priv = dev->dev_private;
508 int ret;
509
510 ret = intel_crt_ddc_get_modes(connector,
511 &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
512 if (ret || !IS_G4X(dev))
513 return ret;
514
515 /* Try to probe digital port for output in DVI-I -> VGA mode. */
516 return intel_crt_ddc_get_modes(connector,
517 &dev_priv->gmbus[GMBUS_PORT_DPB].adapter);
518 }
519
intel_crt_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)520 static int intel_crt_set_property(struct drm_connector *connector,
521 struct drm_property *property,
522 uint64_t value)
523 {
524 return 0;
525 }
526
intel_crt_reset(struct drm_connector * connector)527 static void intel_crt_reset(struct drm_connector *connector)
528 {
529 struct drm_device *dev = connector->dev;
530 struct intel_crt *crt = intel_attached_crt(connector);
531
532 if (HAS_PCH_SPLIT(dev))
533 crt->force_hotplug_required = 1;
534 }
535
536 /*
537 * Routines for controlling stuff on the analog port
538 */
539
540 static const struct drm_encoder_helper_funcs intel_crt_helper_funcs = {
541 .dpms = intel_crt_dpms,
542 .mode_fixup = intel_crt_mode_fixup,
543 .prepare = intel_encoder_prepare,
544 .commit = intel_encoder_commit,
545 .mode_set = intel_crt_mode_set,
546 };
547
548 static const struct drm_connector_funcs intel_crt_connector_funcs = {
549 .reset = intel_crt_reset,
550 .dpms = drm_helper_connector_dpms,
551 .detect = intel_crt_detect,
552 .fill_modes = drm_helper_probe_single_connector_modes,
553 .destroy = intel_crt_destroy,
554 .set_property = intel_crt_set_property,
555 };
556
557 static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs = {
558 .mode_valid = intel_crt_mode_valid,
559 .get_modes = intel_crt_get_modes,
560 .best_encoder = intel_best_encoder,
561 };
562
563 static const struct drm_encoder_funcs intel_crt_enc_funcs = {
564 .destroy = intel_encoder_destroy,
565 };
566
intel_no_crt_dmi_callback(const struct dmi_system_id * id)567 static int __init intel_no_crt_dmi_callback(const struct dmi_system_id *id)
568 {
569 DRM_DEBUG_KMS("Skipping CRT initialization for %s\n", id->ident);
570 return 1;
571 }
572
573 static const struct dmi_system_id intel_no_crt[] = {
574 {
575 .callback = intel_no_crt_dmi_callback,
576 .ident = "ACER ZGB",
577 .matches = {
578 DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
580 },
581 },
582 {
583 .callback = intel_no_crt_dmi_callback,
584 .ident = "DELL XPS 8700",
585 .matches = {
586 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
587 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 8700"),
588 },
589 },
590 { }
591 };
592
intel_crt_init(struct drm_device * dev)593 void intel_crt_init(struct drm_device *dev)
594 {
595 struct drm_connector *connector;
596 struct intel_crt *crt;
597 struct intel_connector *intel_connector;
598 struct drm_i915_private *dev_priv = dev->dev_private;
599
600 /* Skip machines without VGA that falsely report hotplug events */
601 if (dmi_check_system(intel_no_crt))
602 return;
603
604 crt = kzalloc(sizeof(struct intel_crt), GFP_KERNEL);
605 if (!crt)
606 return;
607
608 intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
609 if (!intel_connector) {
610 kfree(crt);
611 return;
612 }
613
614 connector = &intel_connector->base;
615 drm_connector_init(dev, &intel_connector->base,
616 &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
617
618 drm_encoder_init(dev, &crt->base.base, &intel_crt_enc_funcs,
619 DRM_MODE_ENCODER_DAC);
620
621 intel_connector_attach_encoder(intel_connector, &crt->base);
622
623 crt->base.type = INTEL_OUTPUT_ANALOG;
624 crt->base.clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT |
625 1 << INTEL_ANALOG_CLONE_BIT |
626 1 << INTEL_SDVO_LVDS_CLONE_BIT);
627 crt->base.crtc_mask = (1 << 0) | (1 << 1);
628 if (IS_GEN2(dev))
629 connector->interlace_allowed = 0;
630 else
631 connector->interlace_allowed = 1;
632 connector->doublescan_allowed = 0;
633
634 drm_encoder_helper_add(&crt->base.base, &intel_crt_helper_funcs);
635 drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs);
636
637 drm_sysfs_connector_add(connector);
638
639 if (I915_HAS_HOTPLUG(dev))
640 connector->polled = DRM_CONNECTOR_POLL_HPD;
641 else
642 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
643
644 /*
645 * Configure the automatic hotplug detection stuff
646 */
647 crt->force_hotplug_required = 0;
648 if (HAS_PCH_SPLIT(dev)) {
649 u32 adpa;
650
651 adpa = I915_READ(PCH_ADPA);
652 adpa &= ~ADPA_CRT_HOTPLUG_MASK;
653 adpa |= ADPA_HOTPLUG_BITS;
654 I915_WRITE(PCH_ADPA, adpa);
655 POSTING_READ(PCH_ADPA);
656
657 DRM_DEBUG_KMS("pch crt adpa set to 0x%x\n", adpa);
658 crt->force_hotplug_required = 1;
659 }
660
661 dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS;
662 }
663