2 * Copyright © 2006-2007 Intel Corporation
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:
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
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.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/i2c.h>
29 #include <linux/slab.h>
31 #include <drm/drm_crtc.h>
32 #include <drm/drm_crtc_helper.h>
33 #include <drm/drm_edid.h>
34 #include "intel_drv.h"
35 #include <drm/i915_drm.h>
38 /* Here's the desired hotplug mode */
39 #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \
40 ADPA_CRT_HOTPLUG_WARMUP_10MS | \
41 ADPA_CRT_HOTPLUG_SAMPLE_4S | \
42 ADPA_CRT_HOTPLUG_VOLTAGE_50 | \
43 ADPA_CRT_HOTPLUG_VOLREF_325MV | \
44 ADPA_CRT_HOTPLUG_ENABLE)
47 struct intel_encoder base
;
48 /* DPMS state is stored in the connector, which we need in the
49 * encoder's enable/disable callbacks */
50 struct intel_connector
*connector
;
51 bool force_hotplug_required
;
55 static struct intel_crt
*intel_attached_crt(struct drm_connector
*connector
)
57 return container_of(intel_attached_encoder(connector
),
58 struct intel_crt
, base
);
61 static struct intel_crt
*intel_encoder_to_crt(struct intel_encoder
*encoder
)
63 return container_of(encoder
, struct intel_crt
, base
);
66 static bool intel_crt_get_hw_state(struct intel_encoder
*encoder
,
69 struct drm_device
*dev
= encoder
->base
.dev
;
70 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
71 struct intel_crt
*crt
= intel_encoder_to_crt(encoder
);
74 tmp
= I915_READ(crt
->adpa_reg
);
76 if (!(tmp
& ADPA_DAC_ENABLE
))
80 *pipe
= PORT_TO_PIPE_CPT(tmp
);
82 *pipe
= PORT_TO_PIPE(tmp
);
87 /* Note: The caller is required to filter out dpms modes not supported by the
89 static void intel_crt_set_dpms(struct intel_encoder
*encoder
, int mode
)
91 struct drm_device
*dev
= encoder
->base
.dev
;
92 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
93 struct intel_crt
*crt
= intel_encoder_to_crt(encoder
);
96 temp
= I915_READ(crt
->adpa_reg
);
97 temp
&= ~(ADPA_HSYNC_CNTL_DISABLE
| ADPA_VSYNC_CNTL_DISABLE
);
98 temp
&= ~ADPA_DAC_ENABLE
;
101 case DRM_MODE_DPMS_ON
:
102 temp
|= ADPA_DAC_ENABLE
;
104 case DRM_MODE_DPMS_STANDBY
:
105 temp
|= ADPA_DAC_ENABLE
| ADPA_HSYNC_CNTL_DISABLE
;
107 case DRM_MODE_DPMS_SUSPEND
:
108 temp
|= ADPA_DAC_ENABLE
| ADPA_VSYNC_CNTL_DISABLE
;
110 case DRM_MODE_DPMS_OFF
:
111 temp
|= ADPA_HSYNC_CNTL_DISABLE
| ADPA_VSYNC_CNTL_DISABLE
;
115 I915_WRITE(crt
->adpa_reg
, temp
);
118 static void intel_disable_crt(struct intel_encoder
*encoder
)
120 intel_crt_set_dpms(encoder
, DRM_MODE_DPMS_OFF
);
123 static void intel_enable_crt(struct intel_encoder
*encoder
)
125 struct intel_crt
*crt
= intel_encoder_to_crt(encoder
);
127 intel_crt_set_dpms(encoder
, crt
->connector
->base
.dpms
);
131 static void intel_crt_dpms(struct drm_connector
*connector
, int mode
)
133 struct drm_device
*dev
= connector
->dev
;
134 struct intel_encoder
*encoder
= intel_attached_encoder(connector
);
135 struct drm_crtc
*crtc
;
138 /* PCH platforms and VLV only support on/off. */
139 if (INTEL_INFO(dev
)->gen
>= 5 && mode
!= DRM_MODE_DPMS_ON
)
140 mode
= DRM_MODE_DPMS_OFF
;
142 if (mode
== connector
->dpms
)
145 old_dpms
= connector
->dpms
;
146 connector
->dpms
= mode
;
148 /* Only need to change hw state when actually enabled */
149 crtc
= encoder
->base
.crtc
;
151 encoder
->connectors_active
= false;
155 /* We need the pipe to run for anything but OFF. */
156 if (mode
== DRM_MODE_DPMS_OFF
)
157 encoder
->connectors_active
= false;
159 encoder
->connectors_active
= true;
161 if (mode
< old_dpms
) {
162 /* From off to on, enable the pipe first. */
163 intel_crtc_update_dpms(crtc
);
165 intel_crt_set_dpms(encoder
, mode
);
167 intel_crt_set_dpms(encoder
, mode
);
169 intel_crtc_update_dpms(crtc
);
172 intel_modeset_check_state(connector
->dev
);
175 static int intel_crt_mode_valid(struct drm_connector
*connector
,
176 struct drm_display_mode
*mode
)
178 struct drm_device
*dev
= connector
->dev
;
181 if (mode
->flags
& DRM_MODE_FLAG_DBLSCAN
)
182 return MODE_NO_DBLESCAN
;
184 if (mode
->clock
< 25000)
185 return MODE_CLOCK_LOW
;
191 if (mode
->clock
> max_clock
)
192 return MODE_CLOCK_HIGH
;
194 /* The FDI receiver on LPT only supports 8bpc and only has 2 lanes. */
195 if (HAS_PCH_LPT(dev
) &&
196 (ironlake_get_lanes_required(mode
->clock
, 270000, 24) > 2))
197 return MODE_CLOCK_HIGH
;
202 static bool intel_crt_compute_config(struct intel_encoder
*encoder
,
203 struct intel_crtc_config
*pipe_config
)
205 struct drm_device
*dev
= encoder
->base
.dev
;
207 if (HAS_PCH_SPLIT(dev
))
208 pipe_config
->has_pch_encoder
= true;
213 static void intel_crt_mode_set(struct drm_encoder
*encoder
,
214 struct drm_display_mode
*mode
,
215 struct drm_display_mode
*adjusted_mode
)
218 struct drm_device
*dev
= encoder
->dev
;
219 struct drm_crtc
*crtc
= encoder
->crtc
;
220 struct intel_crt
*crt
=
221 intel_encoder_to_crt(to_intel_encoder(encoder
));
222 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
223 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
226 if (HAS_PCH_SPLIT(dev
))
227 adpa
= ADPA_HOTPLUG_BITS
;
231 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PHSYNC
)
232 adpa
|= ADPA_HSYNC_ACTIVE_HIGH
;
233 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PVSYNC
)
234 adpa
|= ADPA_VSYNC_ACTIVE_HIGH
;
236 /* For CPT allow 3 pipe config, for others just use A or B */
237 if (HAS_PCH_LPT(dev
))
238 ; /* Those bits don't exist here */
239 else if (HAS_PCH_CPT(dev
))
240 adpa
|= PORT_TRANS_SEL_CPT(intel_crtc
->pipe
);
241 else if (intel_crtc
->pipe
== 0)
242 adpa
|= ADPA_PIPE_A_SELECT
;
244 adpa
|= ADPA_PIPE_B_SELECT
;
246 if (!HAS_PCH_SPLIT(dev
))
247 I915_WRITE(BCLRPAT(intel_crtc
->pipe
), 0);
249 I915_WRITE(crt
->adpa_reg
, adpa
);
252 static bool intel_ironlake_crt_detect_hotplug(struct drm_connector
*connector
)
254 struct drm_device
*dev
= connector
->dev
;
255 struct intel_crt
*crt
= intel_attached_crt(connector
);
256 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
260 /* The first time through, trigger an explicit detection cycle */
261 if (crt
->force_hotplug_required
) {
262 bool turn_off_dac
= HAS_PCH_SPLIT(dev
);
265 crt
->force_hotplug_required
= 0;
267 save_adpa
= adpa
= I915_READ(crt
->adpa_reg
);
268 DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa
);
270 adpa
|= ADPA_CRT_HOTPLUG_FORCE_TRIGGER
;
272 adpa
&= ~ADPA_DAC_ENABLE
;
274 I915_WRITE(crt
->adpa_reg
, adpa
);
276 if (wait_for((I915_READ(crt
->adpa_reg
) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER
) == 0,
278 DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
281 I915_WRITE(crt
->adpa_reg
, save_adpa
);
282 POSTING_READ(crt
->adpa_reg
);
286 /* Check the status to see if both blue and green are on now */
287 adpa
= I915_READ(crt
->adpa_reg
);
288 if ((adpa
& ADPA_CRT_HOTPLUG_MONITOR_MASK
) != 0)
292 DRM_DEBUG_KMS("ironlake hotplug adpa=0x%x, result %d\n", adpa
, ret
);
297 static bool valleyview_crt_detect_hotplug(struct drm_connector
*connector
)
299 struct drm_device
*dev
= connector
->dev
;
300 struct intel_crt
*crt
= intel_attached_crt(connector
);
301 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
306 save_adpa
= adpa
= I915_READ(crt
->adpa_reg
);
307 DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa
);
309 adpa
|= ADPA_CRT_HOTPLUG_FORCE_TRIGGER
;
311 I915_WRITE(crt
->adpa_reg
, adpa
);
313 if (wait_for((I915_READ(crt
->adpa_reg
) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER
) == 0,
315 DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
316 I915_WRITE(crt
->adpa_reg
, save_adpa
);
319 /* Check the status to see if both blue and green are on now */
320 adpa
= I915_READ(crt
->adpa_reg
);
321 if ((adpa
& ADPA_CRT_HOTPLUG_MONITOR_MASK
) != 0)
326 DRM_DEBUG_KMS("valleyview hotplug adpa=0x%x, result %d\n", adpa
, ret
);
328 /* FIXME: debug force function and remove */
335 * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.
337 * Not for i915G/i915GM
339 * \return true if CRT is connected.
340 * \return false if CRT is disconnected.
342 static bool intel_crt_detect_hotplug(struct drm_connector
*connector
)
344 struct drm_device
*dev
= connector
->dev
;
345 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
346 u32 hotplug_en
, orig
, stat
;
350 if (HAS_PCH_SPLIT(dev
))
351 return intel_ironlake_crt_detect_hotplug(connector
);
353 if (IS_VALLEYVIEW(dev
))
354 return valleyview_crt_detect_hotplug(connector
);
357 * On 4 series desktop, CRT detect sequence need to be done twice
358 * to get a reliable result.
361 if (IS_G4X(dev
) && !IS_GM45(dev
))
365 hotplug_en
= orig
= I915_READ(PORT_HOTPLUG_EN
);
366 hotplug_en
|= CRT_HOTPLUG_FORCE_DETECT
;
368 for (i
= 0; i
< tries
; i
++) {
369 /* turn on the FORCE_DETECT */
370 I915_WRITE(PORT_HOTPLUG_EN
, hotplug_en
);
371 /* wait for FORCE_DETECT to go off */
372 if (wait_for((I915_READ(PORT_HOTPLUG_EN
) &
373 CRT_HOTPLUG_FORCE_DETECT
) == 0,
375 DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off");
378 stat
= I915_READ(PORT_HOTPLUG_STAT
);
379 if ((stat
& CRT_HOTPLUG_MONITOR_MASK
) != CRT_HOTPLUG_MONITOR_NONE
)
382 /* clear the interrupt we just generated, if any */
383 I915_WRITE(PORT_HOTPLUG_STAT
, CRT_HOTPLUG_INT_STATUS
);
385 /* and put the bits back */
386 I915_WRITE(PORT_HOTPLUG_EN
, orig
);
391 static struct edid
*intel_crt_get_edid(struct drm_connector
*connector
,
392 struct i2c_adapter
*i2c
)
396 edid
= drm_get_edid(connector
, i2c
);
398 if (!edid
&& !intel_gmbus_is_forced_bit(i2c
)) {
399 DRM_DEBUG_KMS("CRT GMBUS EDID read failed, retry using GPIO bit-banging\n");
400 intel_gmbus_force_bit(i2c
, true);
401 edid
= drm_get_edid(connector
, i2c
);
402 intel_gmbus_force_bit(i2c
, false);
408 /* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */
409 static int intel_crt_ddc_get_modes(struct drm_connector
*connector
,
410 struct i2c_adapter
*adapter
)
415 edid
= intel_crt_get_edid(connector
, adapter
);
419 ret
= intel_connector_update_modes(connector
, edid
);
425 static bool intel_crt_detect_ddc(struct drm_connector
*connector
)
427 struct intel_crt
*crt
= intel_attached_crt(connector
);
428 struct drm_i915_private
*dev_priv
= crt
->base
.base
.dev
->dev_private
;
430 struct i2c_adapter
*i2c
;
432 BUG_ON(crt
->base
.type
!= INTEL_OUTPUT_ANALOG
);
434 i2c
= intel_gmbus_get_adapter(dev_priv
, dev_priv
->crt_ddc_pin
);
435 edid
= intel_crt_get_edid(connector
, i2c
);
438 bool is_digital
= edid
->input
& DRM_EDID_INPUT_DIGITAL
;
441 * This may be a DVI-I connector with a shared DDC
442 * link between analog and digital outputs, so we
443 * have to check the EDID input spec of the attached device.
446 DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
450 DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
452 DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n");
460 static enum drm_connector_status
461 intel_crt_load_detect(struct intel_crt
*crt
)
463 struct drm_device
*dev
= crt
->base
.base
.dev
;
464 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
465 uint32_t pipe
= to_intel_crtc(crt
->base
.base
.crtc
)->pipe
;
466 uint32_t save_bclrpat
;
467 uint32_t save_vtotal
;
468 uint32_t vtotal
, vactive
;
470 uint32_t vblank
, vblank_start
, vblank_end
;
472 uint32_t bclrpat_reg
;
476 uint32_t pipeconf_reg
;
477 uint32_t pipe_dsl_reg
;
479 enum drm_connector_status status
;
481 DRM_DEBUG_KMS("starting load-detect on CRT\n");
483 bclrpat_reg
= BCLRPAT(pipe
);
484 vtotal_reg
= VTOTAL(pipe
);
485 vblank_reg
= VBLANK(pipe
);
486 vsync_reg
= VSYNC(pipe
);
487 pipeconf_reg
= PIPECONF(pipe
);
488 pipe_dsl_reg
= PIPEDSL(pipe
);
490 save_bclrpat
= I915_READ(bclrpat_reg
);
491 save_vtotal
= I915_READ(vtotal_reg
);
492 vblank
= I915_READ(vblank_reg
);
494 vtotal
= ((save_vtotal
>> 16) & 0xfff) + 1;
495 vactive
= (save_vtotal
& 0x7ff) + 1;
497 vblank_start
= (vblank
& 0xfff) + 1;
498 vblank_end
= ((vblank
>> 16) & 0xfff) + 1;
500 /* Set the border color to purple. */
501 I915_WRITE(bclrpat_reg
, 0x500050);
504 uint32_t pipeconf
= I915_READ(pipeconf_reg
);
505 I915_WRITE(pipeconf_reg
, pipeconf
| PIPECONF_FORCE_BORDER
);
506 POSTING_READ(pipeconf_reg
);
507 /* Wait for next Vblank to substitue
508 * border color for Color info */
509 intel_wait_for_vblank(dev
, pipe
);
510 st00
= I915_READ8(VGA_MSR_WRITE
);
511 status
= ((st00
& (1 << 4)) != 0) ?
512 connector_status_connected
:
513 connector_status_disconnected
;
515 I915_WRITE(pipeconf_reg
, pipeconf
);
517 bool restore_vblank
= false;
521 * If there isn't any border, add some.
522 * Yes, this will flicker
524 if (vblank_start
<= vactive
&& vblank_end
>= vtotal
) {
525 uint32_t vsync
= I915_READ(vsync_reg
);
526 uint32_t vsync_start
= (vsync
& 0xffff) + 1;
528 vblank_start
= vsync_start
;
529 I915_WRITE(vblank_reg
,
531 ((vblank_end
- 1) << 16));
532 restore_vblank
= true;
534 /* sample in the vertical border, selecting the larger one */
535 if (vblank_start
- vactive
>= vtotal
- vblank_end
)
536 vsample
= (vblank_start
+ vactive
) >> 1;
538 vsample
= (vtotal
+ vblank_end
) >> 1;
541 * Wait for the border to be displayed
543 while (I915_READ(pipe_dsl_reg
) >= vactive
)
545 while ((dsl
= I915_READ(pipe_dsl_reg
)) <= vsample
)
548 * Watch ST00 for an entire scanline
554 /* Read the ST00 VGA status register */
555 st00
= I915_READ8(VGA_MSR_WRITE
);
558 } while ((I915_READ(pipe_dsl_reg
) == dsl
));
560 /* restore vblank if necessary */
562 I915_WRITE(vblank_reg
, vblank
);
564 * If more than 3/4 of the scanline detected a monitor,
565 * then it is assumed to be present. This works even on i830,
566 * where there isn't any way to force the border color across
569 status
= detect
* 4 > count
* 3 ?
570 connector_status_connected
:
571 connector_status_disconnected
;
574 /* Restore previous settings */
575 I915_WRITE(bclrpat_reg
, save_bclrpat
);
580 static enum drm_connector_status
581 intel_crt_detect(struct drm_connector
*connector
, bool force
)
583 struct drm_device
*dev
= connector
->dev
;
584 struct intel_crt
*crt
= intel_attached_crt(connector
);
585 enum drm_connector_status status
;
586 struct intel_load_detect_pipe tmp
;
588 if (I915_HAS_HOTPLUG(dev
)) {
589 /* We can not rely on the HPD pin always being correctly wired
590 * up, for example many KVM do not pass it through, and so
591 * only trust an assertion that the monitor is connected.
593 if (intel_crt_detect_hotplug(connector
)) {
594 DRM_DEBUG_KMS("CRT detected via hotplug\n");
595 return connector_status_connected
;
597 DRM_DEBUG_KMS("CRT not detected via hotplug\n");
600 if (intel_crt_detect_ddc(connector
))
601 return connector_status_connected
;
603 /* Load detection is broken on HPD capable machines. Whoever wants a
604 * broken monitor (without edid) to work behind a broken kvm (that fails
605 * to have the right resistors for HP detection) needs to fix this up.
606 * For now just bail out. */
607 if (I915_HAS_HOTPLUG(dev
))
608 return connector_status_disconnected
;
611 return connector
->status
;
613 /* for pre-945g platforms use load detect */
614 if (intel_get_load_detect_pipe(connector
, NULL
, &tmp
)) {
615 if (intel_crt_detect_ddc(connector
))
616 status
= connector_status_connected
;
618 status
= intel_crt_load_detect(crt
);
619 intel_release_load_detect_pipe(connector
, &tmp
);
621 status
= connector_status_unknown
;
626 static void intel_crt_destroy(struct drm_connector
*connector
)
628 drm_sysfs_connector_remove(connector
);
629 drm_connector_cleanup(connector
);
633 static int intel_crt_get_modes(struct drm_connector
*connector
)
635 struct drm_device
*dev
= connector
->dev
;
636 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
638 struct i2c_adapter
*i2c
;
640 i2c
= intel_gmbus_get_adapter(dev_priv
, dev_priv
->crt_ddc_pin
);
641 ret
= intel_crt_ddc_get_modes(connector
, i2c
);
642 if (ret
|| !IS_G4X(dev
))
645 /* Try to probe digital port for output in DVI-I -> VGA mode. */
646 i2c
= intel_gmbus_get_adapter(dev_priv
, GMBUS_PORT_DPB
);
647 return intel_crt_ddc_get_modes(connector
, i2c
);
650 static int intel_crt_set_property(struct drm_connector
*connector
,
651 struct drm_property
*property
,
657 static void intel_crt_reset(struct drm_connector
*connector
)
659 struct drm_device
*dev
= connector
->dev
;
660 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
661 struct intel_crt
*crt
= intel_attached_crt(connector
);
663 if (HAS_PCH_SPLIT(dev
)) {
666 adpa
= I915_READ(crt
->adpa_reg
);
667 adpa
&= ~ADPA_CRT_HOTPLUG_MASK
;
668 adpa
|= ADPA_HOTPLUG_BITS
;
669 I915_WRITE(crt
->adpa_reg
, adpa
);
670 POSTING_READ(crt
->adpa_reg
);
672 DRM_DEBUG_KMS("pch crt adpa set to 0x%x\n", adpa
);
673 crt
->force_hotplug_required
= 1;
679 * Routines for controlling stuff on the analog port
682 static const struct drm_encoder_helper_funcs crt_encoder_funcs
= {
683 .mode_set
= intel_crt_mode_set
,
686 static const struct drm_connector_funcs intel_crt_connector_funcs
= {
687 .reset
= intel_crt_reset
,
688 .dpms
= intel_crt_dpms
,
689 .detect
= intel_crt_detect
,
690 .fill_modes
= drm_helper_probe_single_connector_modes
,
691 .destroy
= intel_crt_destroy
,
692 .set_property
= intel_crt_set_property
,
695 static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs
= {
696 .mode_valid
= intel_crt_mode_valid
,
697 .get_modes
= intel_crt_get_modes
,
698 .best_encoder
= intel_best_encoder
,
701 static const struct drm_encoder_funcs intel_crt_enc_funcs
= {
702 .destroy
= intel_encoder_destroy
,
705 static int __init
intel_no_crt_dmi_callback(const struct dmi_system_id
*id
)
707 DRM_INFO("Skipping CRT initialization for %s\n", id
->ident
);
711 static const struct dmi_system_id intel_no_crt
[] = {
713 .callback
= intel_no_crt_dmi_callback
,
716 DMI_MATCH(DMI_SYS_VENDOR
, "ACER"),
717 DMI_MATCH(DMI_PRODUCT_NAME
, "ZGB"),
721 .callback
= intel_no_crt_dmi_callback
,
722 .ident
= "DELL XPS 8700",
724 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
725 DMI_MATCH(DMI_PRODUCT_NAME
, "XPS 8700"),
731 void intel_crt_init(struct drm_device
*dev
)
733 struct drm_connector
*connector
;
734 struct intel_crt
*crt
;
735 struct intel_connector
*intel_connector
;
736 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
738 /* Skip machines without VGA that falsely report hotplug events */
739 if (dmi_check_system(intel_no_crt
))
742 crt
= kzalloc(sizeof(struct intel_crt
), GFP_KERNEL
);
746 intel_connector
= kzalloc(sizeof(struct intel_connector
), GFP_KERNEL
);
747 if (!intel_connector
) {
752 connector
= &intel_connector
->base
;
753 crt
->connector
= intel_connector
;
754 drm_connector_init(dev
, &intel_connector
->base
,
755 &intel_crt_connector_funcs
, DRM_MODE_CONNECTOR_VGA
);
757 drm_encoder_init(dev
, &crt
->base
.base
, &intel_crt_enc_funcs
,
758 DRM_MODE_ENCODER_DAC
);
760 intel_connector_attach_encoder(intel_connector
, &crt
->base
);
762 crt
->base
.type
= INTEL_OUTPUT_ANALOG
;
763 crt
->base
.cloneable
= true;
765 crt
->base
.crtc_mask
= (1 << 0);
767 crt
->base
.crtc_mask
= (1 << 0) | (1 << 1) | (1 << 2);
770 connector
->interlace_allowed
= 0;
772 connector
->interlace_allowed
= 1;
773 connector
->doublescan_allowed
= 0;
775 if (HAS_PCH_SPLIT(dev
))
776 crt
->adpa_reg
= PCH_ADPA
;
777 else if (IS_VALLEYVIEW(dev
))
778 crt
->adpa_reg
= VLV_ADPA
;
780 crt
->adpa_reg
= ADPA
;
782 crt
->base
.compute_config
= intel_crt_compute_config
;
783 crt
->base
.disable
= intel_disable_crt
;
784 crt
->base
.enable
= intel_enable_crt
;
785 if (I915_HAS_HOTPLUG(dev
))
786 crt
->base
.hpd_pin
= HPD_CRT
;
788 crt
->base
.get_hw_state
= intel_ddi_get_hw_state
;
790 crt
->base
.get_hw_state
= intel_crt_get_hw_state
;
791 intel_connector
->get_hw_state
= intel_connector_get_hw_state
;
793 drm_encoder_helper_add(&crt
->base
.base
, &crt_encoder_funcs
);
794 drm_connector_helper_add(connector
, &intel_crt_connector_helper_funcs
);
796 drm_sysfs_connector_add(connector
);
798 if (!I915_HAS_HOTPLUG(dev
))
799 intel_connector
->polled
= DRM_CONNECTOR_POLL_CONNECT
;
802 * Configure the automatic hotplug detection stuff
804 crt
->force_hotplug_required
= 0;
807 * TODO: find a proper way to discover whether we need to set the the
808 * polarity and link reversal bits or not, instead of relying on the
811 if (HAS_PCH_LPT(dev
)) {
812 u32 fdi_config
= FDI_RX_POLARITY_REVERSED_LPT
|
813 FDI_RX_LINK_REVERSAL_OVERRIDE
;
815 dev_priv
->fdi_rx_config
= I915_READ(_FDI_RXA_CTL
) & fdi_config
;