2 * Copyright 2006 Dave Airlie <airlied@linux.ie>
3 * Copyright © 2006-2009 Intel Corporation
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:
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
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.
25 * Eric Anholt <eric@anholt.net>
26 * Jesse Barnes <jesse.barnes@intel.com>
29 #include <linux/i2c.h>
30 #include <linux/slab.h>
31 #include <linux/delay.h>
32 #include <linux/hdmi.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
40 static struct drm_device
*intel_hdmi_to_dev(struct intel_hdmi
*intel_hdmi
)
42 return hdmi_to_dig_port(intel_hdmi
)->base
.base
.dev
;
46 assert_hdmi_port_disabled(struct intel_hdmi
*intel_hdmi
)
48 struct drm_device
*dev
= intel_hdmi_to_dev(intel_hdmi
);
49 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
50 uint32_t enabled_bits
;
52 enabled_bits
= HAS_DDI(dev
) ? DDI_BUF_CTL_ENABLE
: SDVO_ENABLE
;
54 WARN(I915_READ(intel_hdmi
->hdmi_reg
) & enabled_bits
,
55 "HDMI port enabled, expecting disabled\n");
58 struct intel_hdmi
*enc_to_intel_hdmi(struct drm_encoder
*encoder
)
60 struct intel_digital_port
*intel_dig_port
=
61 container_of(encoder
, struct intel_digital_port
, base
.base
);
62 return &intel_dig_port
->hdmi
;
65 static struct intel_hdmi
*intel_attached_hdmi(struct drm_connector
*connector
)
67 return enc_to_intel_hdmi(&intel_attached_encoder(connector
)->base
);
70 static u32
g4x_infoframe_index(enum hdmi_infoframe_type type
)
73 case HDMI_INFOFRAME_TYPE_AVI
:
74 return VIDEO_DIP_SELECT_AVI
;
75 case HDMI_INFOFRAME_TYPE_SPD
:
76 return VIDEO_DIP_SELECT_SPD
;
77 case HDMI_INFOFRAME_TYPE_VENDOR
:
78 return VIDEO_DIP_SELECT_VENDOR
;
80 DRM_DEBUG_DRIVER("unknown info frame type %d\n", type
);
85 static u32
g4x_infoframe_enable(enum hdmi_infoframe_type type
)
88 case HDMI_INFOFRAME_TYPE_AVI
:
89 return VIDEO_DIP_ENABLE_AVI
;
90 case HDMI_INFOFRAME_TYPE_SPD
:
91 return VIDEO_DIP_ENABLE_SPD
;
92 case HDMI_INFOFRAME_TYPE_VENDOR
:
93 return VIDEO_DIP_ENABLE_VENDOR
;
95 DRM_DEBUG_DRIVER("unknown info frame type %d\n", type
);
100 static u32
hsw_infoframe_enable(enum hdmi_infoframe_type type
)
103 case HDMI_INFOFRAME_TYPE_AVI
:
104 return VIDEO_DIP_ENABLE_AVI_HSW
;
105 case HDMI_INFOFRAME_TYPE_SPD
:
106 return VIDEO_DIP_ENABLE_SPD_HSW
;
107 case HDMI_INFOFRAME_TYPE_VENDOR
:
108 return VIDEO_DIP_ENABLE_VS_HSW
;
110 DRM_DEBUG_DRIVER("unknown info frame type %d\n", type
);
115 static u32
hsw_infoframe_data_reg(enum hdmi_infoframe_type type
,
116 enum transcoder cpu_transcoder
,
117 struct drm_i915_private
*dev_priv
)
120 case HDMI_INFOFRAME_TYPE_AVI
:
121 return HSW_TVIDEO_DIP_AVI_DATA(cpu_transcoder
);
122 case HDMI_INFOFRAME_TYPE_SPD
:
123 return HSW_TVIDEO_DIP_SPD_DATA(cpu_transcoder
);
124 case HDMI_INFOFRAME_TYPE_VENDOR
:
125 return HSW_TVIDEO_DIP_VS_DATA(cpu_transcoder
);
127 DRM_DEBUG_DRIVER("unknown info frame type %d\n", type
);
132 static void g4x_write_infoframe(struct drm_encoder
*encoder
,
133 enum hdmi_infoframe_type type
,
134 const void *frame
, ssize_t len
)
136 const uint32_t *data
= frame
;
137 struct drm_device
*dev
= encoder
->dev
;
138 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
139 u32 val
= I915_READ(VIDEO_DIP_CTL
);
142 WARN(!(val
& VIDEO_DIP_ENABLE
), "Writing DIP with CTL reg disabled\n");
144 val
&= ~(VIDEO_DIP_SELECT_MASK
| 0xf); /* clear DIP data offset */
145 val
|= g4x_infoframe_index(type
);
147 val
&= ~g4x_infoframe_enable(type
);
149 I915_WRITE(VIDEO_DIP_CTL
, val
);
152 for (i
= 0; i
< len
; i
+= 4) {
153 I915_WRITE(VIDEO_DIP_DATA
, *data
);
156 /* Write every possible data byte to force correct ECC calculation. */
157 for (; i
< VIDEO_DIP_DATA_SIZE
; i
+= 4)
158 I915_WRITE(VIDEO_DIP_DATA
, 0);
161 val
|= g4x_infoframe_enable(type
);
162 val
&= ~VIDEO_DIP_FREQ_MASK
;
163 val
|= VIDEO_DIP_FREQ_VSYNC
;
165 I915_WRITE(VIDEO_DIP_CTL
, val
);
166 POSTING_READ(VIDEO_DIP_CTL
);
169 static void ibx_write_infoframe(struct drm_encoder
*encoder
,
170 enum hdmi_infoframe_type type
,
171 const void *frame
, ssize_t len
)
173 const uint32_t *data
= frame
;
174 struct drm_device
*dev
= encoder
->dev
;
175 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
176 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
177 int i
, reg
= TVIDEO_DIP_CTL(intel_crtc
->pipe
);
178 u32 val
= I915_READ(reg
);
180 WARN(!(val
& VIDEO_DIP_ENABLE
), "Writing DIP with CTL reg disabled\n");
182 val
&= ~(VIDEO_DIP_SELECT_MASK
| 0xf); /* clear DIP data offset */
183 val
|= g4x_infoframe_index(type
);
185 val
&= ~g4x_infoframe_enable(type
);
187 I915_WRITE(reg
, val
);
190 for (i
= 0; i
< len
; i
+= 4) {
191 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc
->pipe
), *data
);
194 /* Write every possible data byte to force correct ECC calculation. */
195 for (; i
< VIDEO_DIP_DATA_SIZE
; i
+= 4)
196 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc
->pipe
), 0);
199 val
|= g4x_infoframe_enable(type
);
200 val
&= ~VIDEO_DIP_FREQ_MASK
;
201 val
|= VIDEO_DIP_FREQ_VSYNC
;
203 I915_WRITE(reg
, val
);
207 static void cpt_write_infoframe(struct drm_encoder
*encoder
,
208 enum hdmi_infoframe_type type
,
209 const void *frame
, ssize_t len
)
211 const uint32_t *data
= frame
;
212 struct drm_device
*dev
= encoder
->dev
;
213 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
214 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
215 int i
, reg
= TVIDEO_DIP_CTL(intel_crtc
->pipe
);
216 u32 val
= I915_READ(reg
);
218 WARN(!(val
& VIDEO_DIP_ENABLE
), "Writing DIP with CTL reg disabled\n");
220 val
&= ~(VIDEO_DIP_SELECT_MASK
| 0xf); /* clear DIP data offset */
221 val
|= g4x_infoframe_index(type
);
223 /* The DIP control register spec says that we need to update the AVI
224 * infoframe without clearing its enable bit */
225 if (type
!= HDMI_INFOFRAME_TYPE_AVI
)
226 val
&= ~g4x_infoframe_enable(type
);
228 I915_WRITE(reg
, val
);
231 for (i
= 0; i
< len
; i
+= 4) {
232 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc
->pipe
), *data
);
235 /* Write every possible data byte to force correct ECC calculation. */
236 for (; i
< VIDEO_DIP_DATA_SIZE
; i
+= 4)
237 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc
->pipe
), 0);
240 val
|= g4x_infoframe_enable(type
);
241 val
&= ~VIDEO_DIP_FREQ_MASK
;
242 val
|= VIDEO_DIP_FREQ_VSYNC
;
244 I915_WRITE(reg
, val
);
248 static void vlv_write_infoframe(struct drm_encoder
*encoder
,
249 enum hdmi_infoframe_type type
,
250 const void *frame
, ssize_t len
)
252 const uint32_t *data
= frame
;
253 struct drm_device
*dev
= encoder
->dev
;
254 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
255 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
256 int i
, reg
= VLV_TVIDEO_DIP_CTL(intel_crtc
->pipe
);
257 u32 val
= I915_READ(reg
);
259 WARN(!(val
& VIDEO_DIP_ENABLE
), "Writing DIP with CTL reg disabled\n");
261 val
&= ~(VIDEO_DIP_SELECT_MASK
| 0xf); /* clear DIP data offset */
262 val
|= g4x_infoframe_index(type
);
264 val
&= ~g4x_infoframe_enable(type
);
266 I915_WRITE(reg
, val
);
269 for (i
= 0; i
< len
; i
+= 4) {
270 I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc
->pipe
), *data
);
273 /* Write every possible data byte to force correct ECC calculation. */
274 for (; i
< VIDEO_DIP_DATA_SIZE
; i
+= 4)
275 I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc
->pipe
), 0);
278 val
|= g4x_infoframe_enable(type
);
279 val
&= ~VIDEO_DIP_FREQ_MASK
;
280 val
|= VIDEO_DIP_FREQ_VSYNC
;
282 I915_WRITE(reg
, val
);
286 static void hsw_write_infoframe(struct drm_encoder
*encoder
,
287 enum hdmi_infoframe_type type
,
288 const void *frame
, ssize_t len
)
290 const uint32_t *data
= frame
;
291 struct drm_device
*dev
= encoder
->dev
;
292 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
293 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
294 u32 ctl_reg
= HSW_TVIDEO_DIP_CTL(intel_crtc
->config
.cpu_transcoder
);
297 u32 val
= I915_READ(ctl_reg
);
299 data_reg
= hsw_infoframe_data_reg(type
,
300 intel_crtc
->config
.cpu_transcoder
,
305 val
&= ~hsw_infoframe_enable(type
);
306 I915_WRITE(ctl_reg
, val
);
309 for (i
= 0; i
< len
; i
+= 4) {
310 I915_WRITE(data_reg
+ i
, *data
);
313 /* Write every possible data byte to force correct ECC calculation. */
314 for (; i
< VIDEO_DIP_DATA_SIZE
; i
+= 4)
315 I915_WRITE(data_reg
+ i
, 0);
318 val
|= hsw_infoframe_enable(type
);
319 I915_WRITE(ctl_reg
, val
);
320 POSTING_READ(ctl_reg
);
324 * The data we write to the DIP data buffer registers is 1 byte bigger than the
325 * HDMI infoframe size because of an ECC/reserved byte at position 3 (starting
326 * at 0). It's also a byte used by DisplayPort so the same DIP registers can be
327 * used for both technologies.
329 * DW0: Reserved/ECC/DP | HB2 | HB1 | HB0
330 * DW1: DB3 | DB2 | DB1 | DB0
331 * DW2: DB7 | DB6 | DB5 | DB4
334 * (HB is Header Byte, DB is Data Byte)
336 * The hdmi pack() functions don't know about that hardware specific hole so we
337 * trick them by giving an offset into the buffer and moving back the header
340 static void intel_write_infoframe(struct drm_encoder
*encoder
,
341 union hdmi_infoframe
*frame
)
343 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(encoder
);
344 uint8_t buffer
[VIDEO_DIP_DATA_SIZE
];
347 /* see comment above for the reason for this offset */
348 len
= hdmi_infoframe_pack(frame
, buffer
+ 1, sizeof(buffer
) - 1);
352 /* Insert the 'hole' (see big comment above) at position 3 */
353 buffer
[0] = buffer
[1];
354 buffer
[1] = buffer
[2];
355 buffer
[2] = buffer
[3];
359 intel_hdmi
->write_infoframe(encoder
, frame
->any
.type
, buffer
, len
);
362 static void intel_hdmi_set_avi_infoframe(struct drm_encoder
*encoder
,
363 struct drm_display_mode
*adjusted_mode
)
365 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(encoder
);
366 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
367 union hdmi_infoframe frame
;
370 ret
= drm_hdmi_avi_infoframe_from_display_mode(&frame
.avi
,
373 DRM_ERROR("couldn't fill AVI infoframe\n");
377 if (intel_hdmi
->rgb_quant_range_selectable
) {
378 if (intel_crtc
->config
.limited_color_range
)
379 frame
.avi
.quantization_range
=
380 HDMI_QUANTIZATION_RANGE_LIMITED
;
382 frame
.avi
.quantization_range
=
383 HDMI_QUANTIZATION_RANGE_FULL
;
386 intel_write_infoframe(encoder
, &frame
);
389 static void intel_hdmi_set_spd_infoframe(struct drm_encoder
*encoder
)
391 union hdmi_infoframe frame
;
394 ret
= hdmi_spd_infoframe_init(&frame
.spd
, "Intel", "Integrated gfx");
396 DRM_ERROR("couldn't fill SPD infoframe\n");
400 frame
.spd
.sdi
= HDMI_SPD_SDI_PC
;
402 intel_write_infoframe(encoder
, &frame
);
406 intel_hdmi_set_hdmi_infoframe(struct drm_encoder
*encoder
,
407 struct drm_display_mode
*adjusted_mode
)
409 union hdmi_infoframe frame
;
412 ret
= drm_hdmi_vendor_infoframe_from_display_mode(&frame
.vendor
.hdmi
,
417 intel_write_infoframe(encoder
, &frame
);
420 static void g4x_set_infoframes(struct drm_encoder
*encoder
,
422 struct drm_display_mode
*adjusted_mode
)
424 struct drm_i915_private
*dev_priv
= encoder
->dev
->dev_private
;
425 struct intel_digital_port
*intel_dig_port
= enc_to_dig_port(encoder
);
426 struct intel_hdmi
*intel_hdmi
= &intel_dig_port
->hdmi
;
427 u32 reg
= VIDEO_DIP_CTL
;
428 u32 val
= I915_READ(reg
);
429 u32 port
= VIDEO_DIP_PORT(intel_dig_port
->port
);
431 assert_hdmi_port_disabled(intel_hdmi
);
433 /* If the registers were not initialized yet, they might be zeroes,
434 * which means we're selecting the AVI DIP and we're setting its
435 * frequency to once. This seems to really confuse the HW and make
436 * things stop working (the register spec says the AVI always needs to
437 * be sent every VSync). So here we avoid writing to the register more
438 * than we need and also explicitly select the AVI DIP and explicitly
439 * set its frequency to every VSync. Avoiding to write it twice seems to
440 * be enough to solve the problem, but being defensive shouldn't hurt us
442 val
|= VIDEO_DIP_SELECT_AVI
| VIDEO_DIP_FREQ_VSYNC
;
445 if (!(val
& VIDEO_DIP_ENABLE
))
447 val
&= ~VIDEO_DIP_ENABLE
;
448 I915_WRITE(reg
, val
);
453 if (port
!= (val
& VIDEO_DIP_PORT_MASK
)) {
454 if (val
& VIDEO_DIP_ENABLE
) {
455 val
&= ~VIDEO_DIP_ENABLE
;
456 I915_WRITE(reg
, val
);
459 val
&= ~VIDEO_DIP_PORT_MASK
;
463 val
|= VIDEO_DIP_ENABLE
;
464 val
&= ~VIDEO_DIP_ENABLE_VENDOR
;
466 I915_WRITE(reg
, val
);
469 intel_hdmi_set_avi_infoframe(encoder
, adjusted_mode
);
470 intel_hdmi_set_spd_infoframe(encoder
);
471 intel_hdmi_set_hdmi_infoframe(encoder
, adjusted_mode
);
474 static void ibx_set_infoframes(struct drm_encoder
*encoder
,
476 struct drm_display_mode
*adjusted_mode
)
478 struct drm_i915_private
*dev_priv
= encoder
->dev
->dev_private
;
479 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
480 struct intel_digital_port
*intel_dig_port
= enc_to_dig_port(encoder
);
481 struct intel_hdmi
*intel_hdmi
= &intel_dig_port
->hdmi
;
482 u32 reg
= TVIDEO_DIP_CTL(intel_crtc
->pipe
);
483 u32 val
= I915_READ(reg
);
484 u32 port
= VIDEO_DIP_PORT(intel_dig_port
->port
);
486 assert_hdmi_port_disabled(intel_hdmi
);
488 /* See the big comment in g4x_set_infoframes() */
489 val
|= VIDEO_DIP_SELECT_AVI
| VIDEO_DIP_FREQ_VSYNC
;
492 if (!(val
& VIDEO_DIP_ENABLE
))
494 val
&= ~VIDEO_DIP_ENABLE
;
495 I915_WRITE(reg
, val
);
500 if (port
!= (val
& VIDEO_DIP_PORT_MASK
)) {
501 if (val
& VIDEO_DIP_ENABLE
) {
502 val
&= ~VIDEO_DIP_ENABLE
;
503 I915_WRITE(reg
, val
);
506 val
&= ~VIDEO_DIP_PORT_MASK
;
510 val
|= VIDEO_DIP_ENABLE
;
511 val
&= ~(VIDEO_DIP_ENABLE_VENDOR
| VIDEO_DIP_ENABLE_GAMUT
|
512 VIDEO_DIP_ENABLE_GCP
);
514 I915_WRITE(reg
, val
);
517 intel_hdmi_set_avi_infoframe(encoder
, adjusted_mode
);
518 intel_hdmi_set_spd_infoframe(encoder
);
519 intel_hdmi_set_hdmi_infoframe(encoder
, adjusted_mode
);
522 static void cpt_set_infoframes(struct drm_encoder
*encoder
,
524 struct drm_display_mode
*adjusted_mode
)
526 struct drm_i915_private
*dev_priv
= encoder
->dev
->dev_private
;
527 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
528 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(encoder
);
529 u32 reg
= TVIDEO_DIP_CTL(intel_crtc
->pipe
);
530 u32 val
= I915_READ(reg
);
532 assert_hdmi_port_disabled(intel_hdmi
);
534 /* See the big comment in g4x_set_infoframes() */
535 val
|= VIDEO_DIP_SELECT_AVI
| VIDEO_DIP_FREQ_VSYNC
;
538 if (!(val
& VIDEO_DIP_ENABLE
))
540 val
&= ~(VIDEO_DIP_ENABLE
| VIDEO_DIP_ENABLE_AVI
);
541 I915_WRITE(reg
, val
);
546 /* Set both together, unset both together: see the spec. */
547 val
|= VIDEO_DIP_ENABLE
| VIDEO_DIP_ENABLE_AVI
;
548 val
&= ~(VIDEO_DIP_ENABLE_VENDOR
| VIDEO_DIP_ENABLE_GAMUT
|
549 VIDEO_DIP_ENABLE_GCP
);
551 I915_WRITE(reg
, val
);
554 intel_hdmi_set_avi_infoframe(encoder
, adjusted_mode
);
555 intel_hdmi_set_spd_infoframe(encoder
);
556 intel_hdmi_set_hdmi_infoframe(encoder
, adjusted_mode
);
559 static void vlv_set_infoframes(struct drm_encoder
*encoder
,
561 struct drm_display_mode
*adjusted_mode
)
563 struct drm_i915_private
*dev_priv
= encoder
->dev
->dev_private
;
564 struct intel_digital_port
*intel_dig_port
= enc_to_dig_port(encoder
);
565 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
566 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(encoder
);
567 u32 reg
= VLV_TVIDEO_DIP_CTL(intel_crtc
->pipe
);
568 u32 val
= I915_READ(reg
);
569 u32 port
= VIDEO_DIP_PORT(intel_dig_port
->port
);
571 assert_hdmi_port_disabled(intel_hdmi
);
573 /* See the big comment in g4x_set_infoframes() */
574 val
|= VIDEO_DIP_SELECT_AVI
| VIDEO_DIP_FREQ_VSYNC
;
577 if (!(val
& VIDEO_DIP_ENABLE
))
579 val
&= ~VIDEO_DIP_ENABLE
;
580 I915_WRITE(reg
, val
);
585 if (port
!= (val
& VIDEO_DIP_PORT_MASK
)) {
586 if (val
& VIDEO_DIP_ENABLE
) {
587 val
&= ~VIDEO_DIP_ENABLE
;
588 I915_WRITE(reg
, val
);
591 val
&= ~VIDEO_DIP_PORT_MASK
;
595 val
|= VIDEO_DIP_ENABLE
;
596 val
&= ~(VIDEO_DIP_ENABLE_AVI
| VIDEO_DIP_ENABLE_VENDOR
|
597 VIDEO_DIP_ENABLE_GAMUT
| VIDEO_DIP_ENABLE_GCP
);
599 I915_WRITE(reg
, val
);
602 intel_hdmi_set_avi_infoframe(encoder
, adjusted_mode
);
603 intel_hdmi_set_spd_infoframe(encoder
);
604 intel_hdmi_set_hdmi_infoframe(encoder
, adjusted_mode
);
607 static void hsw_set_infoframes(struct drm_encoder
*encoder
,
609 struct drm_display_mode
*adjusted_mode
)
611 struct drm_i915_private
*dev_priv
= encoder
->dev
->dev_private
;
612 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->crtc
);
613 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(encoder
);
614 u32 reg
= HSW_TVIDEO_DIP_CTL(intel_crtc
->config
.cpu_transcoder
);
615 u32 val
= I915_READ(reg
);
617 assert_hdmi_port_disabled(intel_hdmi
);
625 val
&= ~(VIDEO_DIP_ENABLE_VSC_HSW
| VIDEO_DIP_ENABLE_GCP_HSW
|
626 VIDEO_DIP_ENABLE_VS_HSW
| VIDEO_DIP_ENABLE_GMP_HSW
);
628 I915_WRITE(reg
, val
);
631 intel_hdmi_set_avi_infoframe(encoder
, adjusted_mode
);
632 intel_hdmi_set_spd_infoframe(encoder
);
633 intel_hdmi_set_hdmi_infoframe(encoder
, adjusted_mode
);
636 static void intel_hdmi_prepare(struct intel_encoder
*encoder
)
638 struct drm_device
*dev
= encoder
->base
.dev
;
639 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
640 struct intel_crtc
*crtc
= to_intel_crtc(encoder
->base
.crtc
);
641 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
642 struct drm_display_mode
*adjusted_mode
= &crtc
->config
.adjusted_mode
;
645 hdmi_val
= SDVO_ENCODING_HDMI
;
646 if (!HAS_PCH_SPLIT(dev
))
647 hdmi_val
|= intel_hdmi
->color_range
;
648 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PVSYNC
)
649 hdmi_val
|= SDVO_VSYNC_ACTIVE_HIGH
;
650 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PHSYNC
)
651 hdmi_val
|= SDVO_HSYNC_ACTIVE_HIGH
;
653 if (crtc
->config
.pipe_bpp
> 24)
654 hdmi_val
|= HDMI_COLOR_FORMAT_12bpc
;
656 hdmi_val
|= SDVO_COLOR_FORMAT_8bpc
;
658 if (crtc
->config
.has_hdmi_sink
)
659 hdmi_val
|= HDMI_MODE_SELECT_HDMI
;
661 if (crtc
->config
.has_audio
) {
662 WARN_ON(!crtc
->config
.has_hdmi_sink
);
663 DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n",
664 pipe_name(crtc
->pipe
));
665 hdmi_val
|= SDVO_AUDIO_ENABLE
;
666 intel_write_eld(&encoder
->base
, adjusted_mode
);
669 if (HAS_PCH_CPT(dev
))
670 hdmi_val
|= SDVO_PIPE_SEL_CPT(crtc
->pipe
);
671 else if (IS_CHERRYVIEW(dev
))
672 hdmi_val
|= SDVO_PIPE_SEL_CHV(crtc
->pipe
);
674 hdmi_val
|= SDVO_PIPE_SEL(crtc
->pipe
);
676 I915_WRITE(intel_hdmi
->hdmi_reg
, hdmi_val
);
677 POSTING_READ(intel_hdmi
->hdmi_reg
);
680 static bool intel_hdmi_get_hw_state(struct intel_encoder
*encoder
,
683 struct drm_device
*dev
= encoder
->base
.dev
;
684 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
685 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
686 enum intel_display_power_domain power_domain
;
689 power_domain
= intel_display_port_power_domain(encoder
);
690 if (!intel_display_power_enabled(dev_priv
, power_domain
))
693 tmp
= I915_READ(intel_hdmi
->hdmi_reg
);
695 if (!(tmp
& SDVO_ENABLE
))
698 if (HAS_PCH_CPT(dev
))
699 *pipe
= PORT_TO_PIPE_CPT(tmp
);
700 else if (IS_CHERRYVIEW(dev
))
701 *pipe
= SDVO_PORT_TO_PIPE_CHV(tmp
);
703 *pipe
= PORT_TO_PIPE(tmp
);
708 static void intel_hdmi_get_config(struct intel_encoder
*encoder
,
709 struct intel_crtc_config
*pipe_config
)
711 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
712 struct drm_i915_private
*dev_priv
= encoder
->base
.dev
->dev_private
;
716 tmp
= I915_READ(intel_hdmi
->hdmi_reg
);
718 if (tmp
& SDVO_HSYNC_ACTIVE_HIGH
)
719 flags
|= DRM_MODE_FLAG_PHSYNC
;
721 flags
|= DRM_MODE_FLAG_NHSYNC
;
723 if (tmp
& SDVO_VSYNC_ACTIVE_HIGH
)
724 flags
|= DRM_MODE_FLAG_PVSYNC
;
726 flags
|= DRM_MODE_FLAG_NVSYNC
;
728 if (tmp
& HDMI_MODE_SELECT_HDMI
)
729 pipe_config
->has_hdmi_sink
= true;
731 if (tmp
& HDMI_MODE_SELECT_HDMI
)
732 pipe_config
->has_audio
= true;
734 pipe_config
->adjusted_mode
.flags
|= flags
;
736 if ((tmp
& SDVO_COLOR_FORMAT_MASK
) == HDMI_COLOR_FORMAT_12bpc
)
737 dotclock
= pipe_config
->port_clock
* 2 / 3;
739 dotclock
= pipe_config
->port_clock
;
741 if (HAS_PCH_SPLIT(dev_priv
->dev
))
742 ironlake_check_encoder_dotclock(pipe_config
, dotclock
);
744 pipe_config
->adjusted_mode
.crtc_clock
= dotclock
;
747 static void intel_enable_hdmi(struct intel_encoder
*encoder
)
749 struct drm_device
*dev
= encoder
->base
.dev
;
750 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
751 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->base
.crtc
);
752 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
754 u32 enable_bits
= SDVO_ENABLE
;
756 if (intel_crtc
->config
.has_audio
)
757 enable_bits
|= SDVO_AUDIO_ENABLE
;
759 temp
= I915_READ(intel_hdmi
->hdmi_reg
);
761 /* HW workaround for IBX, we need to move the port to transcoder A
762 * before disabling it, so restore the transcoder select bit here. */
763 if (HAS_PCH_IBX(dev
))
764 enable_bits
|= SDVO_PIPE_SEL(intel_crtc
->pipe
);
766 /* HW workaround, need to toggle enable bit off and on for 12bpc, but
767 * we do this anyway which shows more stable in testing.
769 if (HAS_PCH_SPLIT(dev
)) {
770 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
& ~SDVO_ENABLE
);
771 POSTING_READ(intel_hdmi
->hdmi_reg
);
776 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
777 POSTING_READ(intel_hdmi
->hdmi_reg
);
779 /* HW workaround, need to write this twice for issue that may result
780 * in first write getting masked.
782 if (HAS_PCH_SPLIT(dev
)) {
783 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
784 POSTING_READ(intel_hdmi
->hdmi_reg
);
788 static void vlv_enable_hdmi(struct intel_encoder
*encoder
)
792 static void intel_disable_hdmi(struct intel_encoder
*encoder
)
794 struct drm_device
*dev
= encoder
->base
.dev
;
795 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
796 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
798 u32 enable_bits
= SDVO_ENABLE
| SDVO_AUDIO_ENABLE
;
800 temp
= I915_READ(intel_hdmi
->hdmi_reg
);
802 /* HW workaround for IBX, we need to move the port to transcoder A
803 * before disabling it. */
804 if (HAS_PCH_IBX(dev
)) {
805 struct drm_crtc
*crtc
= encoder
->base
.crtc
;
806 int pipe
= crtc
? to_intel_crtc(crtc
)->pipe
: -1;
808 if (temp
& SDVO_PIPE_B_SELECT
) {
809 temp
&= ~SDVO_PIPE_B_SELECT
;
810 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
811 POSTING_READ(intel_hdmi
->hdmi_reg
);
813 /* Again we need to write this twice. */
814 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
815 POSTING_READ(intel_hdmi
->hdmi_reg
);
817 /* Transcoder selection bits only update
818 * effectively on vblank. */
820 intel_wait_for_vblank(dev
, pipe
);
826 /* HW workaround, need to toggle enable bit off and on for 12bpc, but
827 * we do this anyway which shows more stable in testing.
829 if (HAS_PCH_SPLIT(dev
)) {
830 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
& ~SDVO_ENABLE
);
831 POSTING_READ(intel_hdmi
->hdmi_reg
);
834 temp
&= ~enable_bits
;
836 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
837 POSTING_READ(intel_hdmi
->hdmi_reg
);
839 /* HW workaround, need to write this twice for issue that may result
840 * in first write getting masked.
842 if (HAS_PCH_SPLIT(dev
)) {
843 I915_WRITE(intel_hdmi
->hdmi_reg
, temp
);
844 POSTING_READ(intel_hdmi
->hdmi_reg
);
848 static int hdmi_portclock_limit(struct intel_hdmi
*hdmi
, bool respect_dvi_limit
)
850 struct drm_device
*dev
= intel_hdmi_to_dev(hdmi
);
852 if ((respect_dvi_limit
&& !hdmi
->has_hdmi_sink
) || IS_G4X(dev
))
854 else if (IS_HASWELL(dev
) || INTEL_INFO(dev
)->gen
>= 8)
860 static enum drm_mode_status
861 intel_hdmi_mode_valid(struct drm_connector
*connector
,
862 struct drm_display_mode
*mode
)
864 if (mode
->clock
> hdmi_portclock_limit(intel_attached_hdmi(connector
),
866 return MODE_CLOCK_HIGH
;
867 if (mode
->clock
< 20000)
868 return MODE_CLOCK_LOW
;
870 if (mode
->flags
& DRM_MODE_FLAG_DBLSCAN
)
871 return MODE_NO_DBLESCAN
;
876 static bool hdmi_12bpc_possible(struct intel_crtc
*crtc
)
878 struct drm_device
*dev
= crtc
->base
.dev
;
879 struct intel_encoder
*encoder
;
880 int count
= 0, count_hdmi
= 0;
882 if (!HAS_PCH_SPLIT(dev
))
885 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
886 if (encoder
->new_crtc
!= crtc
)
889 count_hdmi
+= encoder
->type
== INTEL_OUTPUT_HDMI
;
894 * HDMI 12bpc affects the clocks, so it's only possible
895 * when not cloning with other encoder types.
897 return count_hdmi
> 0 && count_hdmi
== count
;
900 bool intel_hdmi_compute_config(struct intel_encoder
*encoder
,
901 struct intel_crtc_config
*pipe_config
)
903 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
904 struct drm_device
*dev
= encoder
->base
.dev
;
905 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
906 int clock_12bpc
= pipe_config
->adjusted_mode
.crtc_clock
* 3 / 2;
907 int portclock_limit
= hdmi_portclock_limit(intel_hdmi
, false);
910 pipe_config
->has_hdmi_sink
= intel_hdmi
->has_hdmi_sink
;
912 if (intel_hdmi
->color_range_auto
) {
913 /* See CEA-861-E - 5.1 Default Encoding Parameters */
914 if (pipe_config
->has_hdmi_sink
&&
915 drm_match_cea_mode(adjusted_mode
) > 1)
916 intel_hdmi
->color_range
= HDMI_COLOR_RANGE_16_235
;
918 intel_hdmi
->color_range
= 0;
921 if (intel_hdmi
->color_range
)
922 pipe_config
->limited_color_range
= true;
924 if (HAS_PCH_SPLIT(dev
) && !HAS_DDI(dev
))
925 pipe_config
->has_pch_encoder
= true;
927 if (pipe_config
->has_hdmi_sink
&& intel_hdmi
->has_audio
)
928 pipe_config
->has_audio
= true;
931 * HDMI is either 12 or 8, so if the display lets 10bpc sneak
932 * through, clamp it down. Note that g4x/vlv don't support 12bpc hdmi
933 * outputs. We also need to check that the higher clock still fits
936 if (pipe_config
->pipe_bpp
> 8*3 && pipe_config
->has_hdmi_sink
&&
937 clock_12bpc
<= portclock_limit
&&
938 hdmi_12bpc_possible(encoder
->new_crtc
)) {
939 DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n");
942 /* Need to adjust the port link by 1.5x for 12bpc. */
943 pipe_config
->port_clock
= clock_12bpc
;
945 DRM_DEBUG_KMS("picking bpc to 8 for HDMI output\n");
949 if (!pipe_config
->bw_constrained
) {
950 DRM_DEBUG_KMS("forcing pipe bpc to %i for HDMI\n", desired_bpp
);
951 pipe_config
->pipe_bpp
= desired_bpp
;
954 if (adjusted_mode
->crtc_clock
> portclock_limit
) {
955 DRM_DEBUG_KMS("too high HDMI clock, rejecting mode\n");
962 static enum drm_connector_status
963 intel_hdmi_detect(struct drm_connector
*connector
, bool force
)
965 struct drm_device
*dev
= connector
->dev
;
966 struct intel_hdmi
*intel_hdmi
= intel_attached_hdmi(connector
);
967 struct intel_digital_port
*intel_dig_port
=
968 hdmi_to_dig_port(intel_hdmi
);
969 struct intel_encoder
*intel_encoder
= &intel_dig_port
->base
;
970 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
972 enum intel_display_power_domain power_domain
;
973 enum drm_connector_status status
= connector_status_disconnected
;
975 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
976 connector
->base
.id
, connector
->name
);
978 power_domain
= intel_display_port_power_domain(intel_encoder
);
979 intel_display_power_get(dev_priv
, power_domain
);
981 intel_hdmi
->has_hdmi_sink
= false;
982 intel_hdmi
->has_audio
= false;
983 intel_hdmi
->rgb_quant_range_selectable
= false;
984 edid
= drm_get_edid(connector
,
985 intel_gmbus_get_adapter(dev_priv
,
986 intel_hdmi
->ddc_bus
));
989 if (edid
->input
& DRM_EDID_INPUT_DIGITAL
) {
990 status
= connector_status_connected
;
991 if (intel_hdmi
->force_audio
!= HDMI_AUDIO_OFF_DVI
)
992 intel_hdmi
->has_hdmi_sink
=
993 drm_detect_hdmi_monitor(edid
);
994 intel_hdmi
->has_audio
= drm_detect_monitor_audio(edid
);
995 intel_hdmi
->rgb_quant_range_selectable
=
996 drm_rgb_quant_range_selectable(edid
);
1001 if (status
== connector_status_connected
) {
1002 if (intel_hdmi
->force_audio
!= HDMI_AUDIO_AUTO
)
1003 intel_hdmi
->has_audio
=
1004 (intel_hdmi
->force_audio
== HDMI_AUDIO_ON
);
1005 intel_encoder
->type
= INTEL_OUTPUT_HDMI
;
1008 intel_display_power_put(dev_priv
, power_domain
);
1013 static int intel_hdmi_get_modes(struct drm_connector
*connector
)
1015 struct intel_encoder
*intel_encoder
= intel_attached_encoder(connector
);
1016 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&intel_encoder
->base
);
1017 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
1018 enum intel_display_power_domain power_domain
;
1021 /* We should parse the EDID data and find out if it's an HDMI sink so
1022 * we can send audio to it.
1025 power_domain
= intel_display_port_power_domain(intel_encoder
);
1026 intel_display_power_get(dev_priv
, power_domain
);
1028 ret
= intel_ddc_get_modes(connector
,
1029 intel_gmbus_get_adapter(dev_priv
,
1030 intel_hdmi
->ddc_bus
));
1032 intel_display_power_put(dev_priv
, power_domain
);
1038 intel_hdmi_detect_audio(struct drm_connector
*connector
)
1040 struct intel_encoder
*intel_encoder
= intel_attached_encoder(connector
);
1041 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&intel_encoder
->base
);
1042 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
1043 enum intel_display_power_domain power_domain
;
1045 bool has_audio
= false;
1047 power_domain
= intel_display_port_power_domain(intel_encoder
);
1048 intel_display_power_get(dev_priv
, power_domain
);
1050 edid
= drm_get_edid(connector
,
1051 intel_gmbus_get_adapter(dev_priv
,
1052 intel_hdmi
->ddc_bus
));
1054 if (edid
->input
& DRM_EDID_INPUT_DIGITAL
)
1055 has_audio
= drm_detect_monitor_audio(edid
);
1059 intel_display_power_put(dev_priv
, power_domain
);
1065 intel_hdmi_set_property(struct drm_connector
*connector
,
1066 struct drm_property
*property
,
1069 struct intel_hdmi
*intel_hdmi
= intel_attached_hdmi(connector
);
1070 struct intel_digital_port
*intel_dig_port
=
1071 hdmi_to_dig_port(intel_hdmi
);
1072 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
1075 ret
= drm_object_property_set_value(&connector
->base
, property
, val
);
1079 if (property
== dev_priv
->force_audio_property
) {
1080 enum hdmi_force_audio i
= val
;
1083 if (i
== intel_hdmi
->force_audio
)
1086 intel_hdmi
->force_audio
= i
;
1088 if (i
== HDMI_AUDIO_AUTO
)
1089 has_audio
= intel_hdmi_detect_audio(connector
);
1091 has_audio
= (i
== HDMI_AUDIO_ON
);
1093 if (i
== HDMI_AUDIO_OFF_DVI
)
1094 intel_hdmi
->has_hdmi_sink
= 0;
1096 intel_hdmi
->has_audio
= has_audio
;
1100 if (property
== dev_priv
->broadcast_rgb_property
) {
1101 bool old_auto
= intel_hdmi
->color_range_auto
;
1102 uint32_t old_range
= intel_hdmi
->color_range
;
1105 case INTEL_BROADCAST_RGB_AUTO
:
1106 intel_hdmi
->color_range_auto
= true;
1108 case INTEL_BROADCAST_RGB_FULL
:
1109 intel_hdmi
->color_range_auto
= false;
1110 intel_hdmi
->color_range
= 0;
1112 case INTEL_BROADCAST_RGB_LIMITED
:
1113 intel_hdmi
->color_range_auto
= false;
1114 intel_hdmi
->color_range
= HDMI_COLOR_RANGE_16_235
;
1120 if (old_auto
== intel_hdmi
->color_range_auto
&&
1121 old_range
== intel_hdmi
->color_range
)
1130 if (intel_dig_port
->base
.base
.crtc
)
1131 intel_crtc_restore_mode(intel_dig_port
->base
.base
.crtc
);
1136 static void intel_hdmi_pre_enable(struct intel_encoder
*encoder
)
1138 struct intel_hdmi
*intel_hdmi
= enc_to_intel_hdmi(&encoder
->base
);
1139 struct intel_crtc
*intel_crtc
= to_intel_crtc(encoder
->base
.crtc
);
1140 struct drm_display_mode
*adjusted_mode
=
1141 &intel_crtc
->config
.adjusted_mode
;
1143 intel_hdmi_prepare(encoder
);
1145 intel_hdmi
->set_infoframes(&encoder
->base
,
1146 intel_crtc
->config
.has_hdmi_sink
,
1150 static void vlv_hdmi_pre_enable(struct intel_encoder
*encoder
)
1152 struct intel_digital_port
*dport
= enc_to_dig_port(&encoder
->base
);
1153 struct intel_hdmi
*intel_hdmi
= &dport
->hdmi
;
1154 struct drm_device
*dev
= encoder
->base
.dev
;
1155 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1156 struct intel_crtc
*intel_crtc
=
1157 to_intel_crtc(encoder
->base
.crtc
);
1158 struct drm_display_mode
*adjusted_mode
=
1159 &intel_crtc
->config
.adjusted_mode
;
1160 enum dpio_channel port
= vlv_dport_to_channel(dport
);
1161 int pipe
= intel_crtc
->pipe
;
1164 /* Enable clock channels for this port */
1165 mutex_lock(&dev_priv
->dpio_lock
);
1166 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW8(port
));
1173 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW8(port
), val
);
1176 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW5(port
), 0);
1177 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW4(port
), 0x2b245f5f);
1178 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW2(port
), 0x5578b83a);
1179 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW3(port
), 0x0c782040);
1180 vlv_dpio_write(dev_priv
, pipe
, VLV_TX3_DW4(port
), 0x2b247878);
1181 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW11(port
), 0x00030000);
1182 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW9(port
), 0x00002000);
1183 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW5(port
), DPIO_TX_OCALINIT_EN
);
1185 /* Program lane clock */
1186 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW14(port
), 0x00760018);
1187 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW23(port
), 0x00400888);
1188 mutex_unlock(&dev_priv
->dpio_lock
);
1190 intel_hdmi
->set_infoframes(&encoder
->base
,
1191 intel_crtc
->config
.has_hdmi_sink
,
1194 intel_enable_hdmi(encoder
);
1196 vlv_wait_port_ready(dev_priv
, dport
);
1199 static void vlv_hdmi_pre_pll_enable(struct intel_encoder
*encoder
)
1201 struct intel_digital_port
*dport
= enc_to_dig_port(&encoder
->base
);
1202 struct drm_device
*dev
= encoder
->base
.dev
;
1203 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1204 struct intel_crtc
*intel_crtc
=
1205 to_intel_crtc(encoder
->base
.crtc
);
1206 enum dpio_channel port
= vlv_dport_to_channel(dport
);
1207 int pipe
= intel_crtc
->pipe
;
1209 intel_hdmi_prepare(encoder
);
1211 /* Program Tx lane resets to default */
1212 mutex_lock(&dev_priv
->dpio_lock
);
1213 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW0(port
),
1214 DPIO_PCS_TX_LANE2_RESET
|
1215 DPIO_PCS_TX_LANE1_RESET
);
1216 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW1(port
),
1217 DPIO_PCS_CLK_CRI_RXEB_EIOS_EN
|
1218 DPIO_PCS_CLK_CRI_RXDIGFILTSG_EN
|
1219 (1<<DPIO_PCS_CLK_DATAWIDTH_SHIFT
) |
1220 DPIO_PCS_CLK_SOFT_RESET
);
1222 /* Fix up inter-pair skew failure */
1223 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW12(port
), 0x00750f00);
1224 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW11(port
), 0x00001500);
1225 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW14(port
), 0x40400000);
1227 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW9(port
), 0x00002000);
1228 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW5(port
), DPIO_TX_OCALINIT_EN
);
1229 mutex_unlock(&dev_priv
->dpio_lock
);
1232 static void vlv_hdmi_post_disable(struct intel_encoder
*encoder
)
1234 struct intel_digital_port
*dport
= enc_to_dig_port(&encoder
->base
);
1235 struct drm_i915_private
*dev_priv
= encoder
->base
.dev
->dev_private
;
1236 struct intel_crtc
*intel_crtc
=
1237 to_intel_crtc(encoder
->base
.crtc
);
1238 enum dpio_channel port
= vlv_dport_to_channel(dport
);
1239 int pipe
= intel_crtc
->pipe
;
1241 /* Reset lanes to avoid HDMI flicker (VLV w/a) */
1242 mutex_lock(&dev_priv
->dpio_lock
);
1243 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW0(port
), 0x00000000);
1244 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS_DW1(port
), 0x00e00060);
1245 mutex_unlock(&dev_priv
->dpio_lock
);
1248 static void chv_hdmi_post_disable(struct intel_encoder
*encoder
)
1250 struct intel_digital_port
*dport
= enc_to_dig_port(&encoder
->base
);
1251 struct drm_device
*dev
= encoder
->base
.dev
;
1252 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1253 struct intel_crtc
*intel_crtc
=
1254 to_intel_crtc(encoder
->base
.crtc
);
1255 enum dpio_channel ch
= vlv_dport_to_channel(dport
);
1256 enum pipe pipe
= intel_crtc
->pipe
;
1259 mutex_lock(&dev_priv
->dpio_lock
);
1261 /* Propagate soft reset to data lane reset */
1262 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW1(ch
));
1263 val
|= CHV_PCS_REQ_SOFTRESET_EN
;
1264 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW1(ch
), val
);
1266 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW1(ch
));
1267 val
|= CHV_PCS_REQ_SOFTRESET_EN
;
1268 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW1(ch
), val
);
1270 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW0(ch
));
1271 val
&= ~(DPIO_PCS_TX_LANE2_RESET
| DPIO_PCS_TX_LANE1_RESET
);
1272 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW0(ch
), val
);
1274 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW0(ch
));
1275 val
&= ~(DPIO_PCS_TX_LANE2_RESET
| DPIO_PCS_TX_LANE1_RESET
);
1276 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW0(ch
), val
);
1278 mutex_unlock(&dev_priv
->dpio_lock
);
1281 static void chv_hdmi_pre_enable(struct intel_encoder
*encoder
)
1283 struct intel_digital_port
*dport
= enc_to_dig_port(&encoder
->base
);
1284 struct drm_device
*dev
= encoder
->base
.dev
;
1285 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1286 struct intel_crtc
*intel_crtc
=
1287 to_intel_crtc(encoder
->base
.crtc
);
1288 enum dpio_channel ch
= vlv_dport_to_channel(dport
);
1289 int pipe
= intel_crtc
->pipe
;
1293 mutex_lock(&dev_priv
->dpio_lock
);
1295 /* Deassert soft data lane reset*/
1296 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW1(ch
));
1297 val
|= CHV_PCS_REQ_SOFTRESET_EN
;
1298 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW1(ch
), val
);
1300 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW1(ch
));
1301 val
|= CHV_PCS_REQ_SOFTRESET_EN
;
1302 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW1(ch
), val
);
1304 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW0(ch
));
1305 val
|= (DPIO_PCS_TX_LANE2_RESET
| DPIO_PCS_TX_LANE1_RESET
);
1306 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW0(ch
), val
);
1308 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW0(ch
));
1309 val
|= (DPIO_PCS_TX_LANE2_RESET
| DPIO_PCS_TX_LANE1_RESET
);
1310 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW0(ch
), val
);
1312 /* Program Tx latency optimal setting */
1313 for (i
= 0; i
< 4; i
++) {
1314 /* Set the latency optimal bit */
1315 data
= (i
== 1) ? 0x0 : 0x6;
1316 vlv_dpio_write(dev_priv
, pipe
, CHV_TX_DW11(ch
, i
),
1317 data
<< DPIO_FRC_LATENCY_SHFIT
);
1319 /* Set the upar bit */
1320 data
= (i
== 1) ? 0x0 : 0x1;
1321 vlv_dpio_write(dev_priv
, pipe
, CHV_TX_DW14(ch
, i
),
1322 data
<< DPIO_UPAR_SHIFT
);
1325 /* Data lane stagger programming */
1326 /* FIXME: Fix up value only after power analysis */
1328 /* Clear calc init */
1329 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW10(ch
));
1330 val
&= ~(DPIO_PCS_SWING_CALC_TX0_TX2
| DPIO_PCS_SWING_CALC_TX1_TX3
);
1331 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW10(ch
), val
);
1333 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW10(ch
));
1334 val
&= ~(DPIO_PCS_SWING_CALC_TX0_TX2
| DPIO_PCS_SWING_CALC_TX1_TX3
);
1335 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW10(ch
), val
);
1337 /* FIXME: Program the support xxx V-dB */
1339 for (i
= 0; i
< 4; i
++) {
1340 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_TX_DW4(ch
, i
));
1341 val
&= ~DPIO_SWING_DEEMPH9P5_MASK
;
1342 val
|= 128 << DPIO_SWING_DEEMPH9P5_SHIFT
;
1343 vlv_dpio_write(dev_priv
, pipe
, CHV_TX_DW4(ch
, i
), val
);
1346 for (i
= 0; i
< 4; i
++) {
1347 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_TX_DW2(ch
, i
));
1348 val
&= ~DPIO_SWING_MARGIN_MASK
;
1349 val
|= 102 << DPIO_SWING_MARGIN_SHIFT
;
1350 vlv_dpio_write(dev_priv
, pipe
, CHV_TX_DW2(ch
, i
), val
);
1353 /* Disable unique transition scale */
1354 for (i
= 0; i
< 4; i
++) {
1355 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_TX_DW3(ch
, i
));
1356 val
&= ~DPIO_TX_UNIQ_TRANS_SCALE_EN
;
1357 vlv_dpio_write(dev_priv
, pipe
, CHV_TX_DW3(ch
, i
), val
);
1360 /* Additional steps for 1200mV-0dB */
1362 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_TX_DW3(ch
));
1364 val
|= DPIO_TX_UNIQ_TRANS_SCALE_CH1
;
1366 val
|= DPIO_TX_UNIQ_TRANS_SCALE_CH0
;
1367 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW3(ch
), val
);
1369 vlv_dpio_write(dev_priv
, pipe
, VLV_TX_DW2(ch
),
1370 vlv_dpio_read(dev_priv
, pipe
, VLV_TX_DW2(ch
)) |
1371 (0x9a << DPIO_UNIQ_TRANS_SCALE_SHIFT
));
1373 /* Start swing calculation */
1374 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS01_DW10(ch
));
1375 val
|= DPIO_PCS_SWING_CALC_TX0_TX2
| DPIO_PCS_SWING_CALC_TX1_TX3
;
1376 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS01_DW10(ch
), val
);
1378 val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PCS23_DW10(ch
));
1379 val
|= DPIO_PCS_SWING_CALC_TX0_TX2
| DPIO_PCS_SWING_CALC_TX1_TX3
;
1380 vlv_dpio_write(dev_priv
, pipe
, VLV_PCS23_DW10(ch
), val
);
1383 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW30
);
1384 val
|= DPIO_LRC_BYPASS
;
1385 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW30
, val
);
1387 mutex_unlock(&dev_priv
->dpio_lock
);
1389 intel_enable_hdmi(encoder
);
1391 vlv_wait_port_ready(dev_priv
, dport
);
1394 static void intel_hdmi_destroy(struct drm_connector
*connector
)
1396 drm_connector_cleanup(connector
);
1400 static const struct drm_connector_funcs intel_hdmi_connector_funcs
= {
1401 .dpms
= intel_connector_dpms
,
1402 .detect
= intel_hdmi_detect
,
1403 .fill_modes
= drm_helper_probe_single_connector_modes
,
1404 .set_property
= intel_hdmi_set_property
,
1405 .destroy
= intel_hdmi_destroy
,
1408 static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs
= {
1409 .get_modes
= intel_hdmi_get_modes
,
1410 .mode_valid
= intel_hdmi_mode_valid
,
1411 .best_encoder
= intel_best_encoder
,
1414 static const struct drm_encoder_funcs intel_hdmi_enc_funcs
= {
1415 .destroy
= intel_encoder_destroy
,
1419 intel_hdmi_add_properties(struct intel_hdmi
*intel_hdmi
, struct drm_connector
*connector
)
1421 intel_attach_force_audio_property(connector
);
1422 intel_attach_broadcast_rgb_property(connector
);
1423 intel_hdmi
->color_range_auto
= true;
1426 void intel_hdmi_init_connector(struct intel_digital_port
*intel_dig_port
,
1427 struct intel_connector
*intel_connector
)
1429 struct drm_connector
*connector
= &intel_connector
->base
;
1430 struct intel_hdmi
*intel_hdmi
= &intel_dig_port
->hdmi
;
1431 struct intel_encoder
*intel_encoder
= &intel_dig_port
->base
;
1432 struct drm_device
*dev
= intel_encoder
->base
.dev
;
1433 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1434 enum port port
= intel_dig_port
->port
;
1436 drm_connector_init(dev
, connector
, &intel_hdmi_connector_funcs
,
1437 DRM_MODE_CONNECTOR_HDMIA
);
1438 drm_connector_helper_add(connector
, &intel_hdmi_connector_helper_funcs
);
1440 connector
->interlace_allowed
= 1;
1441 connector
->doublescan_allowed
= 0;
1442 connector
->stereo_allowed
= 1;
1446 intel_hdmi
->ddc_bus
= GMBUS_PORT_DPB
;
1447 intel_encoder
->hpd_pin
= HPD_PORT_B
;
1450 intel_hdmi
->ddc_bus
= GMBUS_PORT_DPC
;
1451 intel_encoder
->hpd_pin
= HPD_PORT_C
;
1454 if (IS_CHERRYVIEW(dev
))
1455 intel_hdmi
->ddc_bus
= GMBUS_PORT_DPD_CHV
;
1457 intel_hdmi
->ddc_bus
= GMBUS_PORT_DPD
;
1458 intel_encoder
->hpd_pin
= HPD_PORT_D
;
1461 intel_encoder
->hpd_pin
= HPD_PORT_A
;
1462 /* Internal port only for eDP. */
1467 if (IS_VALLEYVIEW(dev
)) {
1468 intel_hdmi
->write_infoframe
= vlv_write_infoframe
;
1469 intel_hdmi
->set_infoframes
= vlv_set_infoframes
;
1470 } else if (!HAS_PCH_SPLIT(dev
)) {
1471 intel_hdmi
->write_infoframe
= g4x_write_infoframe
;
1472 intel_hdmi
->set_infoframes
= g4x_set_infoframes
;
1473 } else if (HAS_DDI(dev
)) {
1474 intel_hdmi
->write_infoframe
= hsw_write_infoframe
;
1475 intel_hdmi
->set_infoframes
= hsw_set_infoframes
;
1476 } else if (HAS_PCH_IBX(dev
)) {
1477 intel_hdmi
->write_infoframe
= ibx_write_infoframe
;
1478 intel_hdmi
->set_infoframes
= ibx_set_infoframes
;
1480 intel_hdmi
->write_infoframe
= cpt_write_infoframe
;
1481 intel_hdmi
->set_infoframes
= cpt_set_infoframes
;
1485 intel_connector
->get_hw_state
= intel_ddi_connector_get_hw_state
;
1487 intel_connector
->get_hw_state
= intel_connector_get_hw_state
;
1488 intel_connector
->unregister
= intel_connector_unregister
;
1490 intel_hdmi_add_properties(intel_hdmi
, connector
);
1492 intel_connector_attach_encoder(intel_connector
, intel_encoder
);
1493 drm_connector_register(connector
);
1495 /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
1496 * 0xd. Failure to do so will result in spurious interrupts being
1497 * generated on the port when a cable is not attached.
1499 if (IS_G4X(dev
) && !IS_GM45(dev
)) {
1500 u32 temp
= I915_READ(PEG_BAND_GAP_DATA
);
1501 I915_WRITE(PEG_BAND_GAP_DATA
, (temp
& ~0xf) | 0xd);
1505 void intel_hdmi_init(struct drm_device
*dev
, int hdmi_reg
, enum port port
)
1507 struct intel_digital_port
*intel_dig_port
;
1508 struct intel_encoder
*intel_encoder
;
1509 struct intel_connector
*intel_connector
;
1511 intel_dig_port
= kzalloc(sizeof(*intel_dig_port
), GFP_KERNEL
);
1512 if (!intel_dig_port
)
1515 intel_connector
= kzalloc(sizeof(*intel_connector
), GFP_KERNEL
);
1516 if (!intel_connector
) {
1517 kfree(intel_dig_port
);
1521 intel_encoder
= &intel_dig_port
->base
;
1523 drm_encoder_init(dev
, &intel_encoder
->base
, &intel_hdmi_enc_funcs
,
1524 DRM_MODE_ENCODER_TMDS
);
1526 intel_encoder
->compute_config
= intel_hdmi_compute_config
;
1527 intel_encoder
->disable
= intel_disable_hdmi
;
1528 intel_encoder
->get_hw_state
= intel_hdmi_get_hw_state
;
1529 intel_encoder
->get_config
= intel_hdmi_get_config
;
1530 if (IS_CHERRYVIEW(dev
)) {
1531 intel_encoder
->pre_enable
= chv_hdmi_pre_enable
;
1532 intel_encoder
->enable
= vlv_enable_hdmi
;
1533 intel_encoder
->post_disable
= chv_hdmi_post_disable
;
1534 } else if (IS_VALLEYVIEW(dev
)) {
1535 intel_encoder
->pre_pll_enable
= vlv_hdmi_pre_pll_enable
;
1536 intel_encoder
->pre_enable
= vlv_hdmi_pre_enable
;
1537 intel_encoder
->enable
= vlv_enable_hdmi
;
1538 intel_encoder
->post_disable
= vlv_hdmi_post_disable
;
1540 intel_encoder
->pre_enable
= intel_hdmi_pre_enable
;
1541 intel_encoder
->enable
= intel_enable_hdmi
;
1544 intel_encoder
->type
= INTEL_OUTPUT_HDMI
;
1545 if (IS_CHERRYVIEW(dev
)) {
1547 intel_encoder
->crtc_mask
= 1 << 2;
1549 intel_encoder
->crtc_mask
= (1 << 0) | (1 << 1);
1551 intel_encoder
->crtc_mask
= (1 << 0) | (1 << 1) | (1 << 2);
1553 intel_encoder
->cloneable
= 1 << INTEL_OUTPUT_ANALOG
;
1555 * BSpec is unclear about HDMI+HDMI cloning on g4x, but it seems
1556 * to work on real hardware. And since g4x can send infoframes to
1557 * only one port anyway, nothing is lost by allowing it.
1560 intel_encoder
->cloneable
|= 1 << INTEL_OUTPUT_HDMI
;
1562 intel_dig_port
->port
= port
;
1563 intel_dig_port
->hdmi
.hdmi_reg
= hdmi_reg
;
1564 intel_dig_port
->dp
.output_reg
= 0;
1566 intel_hdmi_init_connector(intel_dig_port
, intel_connector
);