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>
33 #include <drm/drm_atomic_helper.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_edid.h>
36 #include <drm/drm_hdcp.h>
37 #include <drm/drm_scdc_helper.h>
38 #include "intel_drv.h"
39 #include <drm/i915_drm.h>
40 #include <drm/intel_lpe_audio.h>
43 static struct drm_device *intel_hdmi_to_dev(struct intel_hdmi *intel_hdmi)
45 return hdmi_to_dig_port(intel_hdmi)->base.base.dev;
49 assert_hdmi_port_disabled(struct intel_hdmi *intel_hdmi)
51 struct drm_device *dev = intel_hdmi_to_dev(intel_hdmi);
52 struct drm_i915_private *dev_priv = to_i915(dev);
55 enabled_bits = HAS_DDI(dev_priv) ? DDI_BUF_CTL_ENABLE : SDVO_ENABLE;
57 WARN(I915_READ(intel_hdmi->hdmi_reg) & enabled_bits,
58 "HDMI port enabled, expecting disabled\n");
62 assert_hdmi_transcoder_func_disabled(struct drm_i915_private *dev_priv,
63 enum transcoder cpu_transcoder)
65 WARN(I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)) &
66 TRANS_DDI_FUNC_ENABLE,
67 "HDMI transcoder function enabled, expecting disabled\n");
70 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder)
72 struct intel_digital_port *intel_dig_port =
73 container_of(encoder, struct intel_digital_port, base.base);
74 return &intel_dig_port->hdmi;
77 static struct intel_hdmi *intel_attached_hdmi(struct drm_connector *connector)
79 return enc_to_intel_hdmi(&intel_attached_encoder(connector)->base);
82 static u32 g4x_infoframe_index(unsigned int type)
85 case HDMI_INFOFRAME_TYPE_AVI:
86 return VIDEO_DIP_SELECT_AVI;
87 case HDMI_INFOFRAME_TYPE_SPD:
88 return VIDEO_DIP_SELECT_SPD;
89 case HDMI_INFOFRAME_TYPE_VENDOR:
90 return VIDEO_DIP_SELECT_VENDOR;
97 static u32 g4x_infoframe_enable(unsigned int type)
100 case HDMI_INFOFRAME_TYPE_AVI:
101 return VIDEO_DIP_ENABLE_AVI;
102 case HDMI_INFOFRAME_TYPE_SPD:
103 return VIDEO_DIP_ENABLE_SPD;
104 case HDMI_INFOFRAME_TYPE_VENDOR:
105 return VIDEO_DIP_ENABLE_VENDOR;
112 static u32 hsw_infoframe_enable(unsigned int type)
116 return VIDEO_DIP_ENABLE_VSC_HSW;
118 return VDIP_ENABLE_PPS;
119 case HDMI_INFOFRAME_TYPE_AVI:
120 return VIDEO_DIP_ENABLE_AVI_HSW;
121 case HDMI_INFOFRAME_TYPE_SPD:
122 return VIDEO_DIP_ENABLE_SPD_HSW;
123 case HDMI_INFOFRAME_TYPE_VENDOR:
124 return VIDEO_DIP_ENABLE_VS_HSW;
132 hsw_dip_data_reg(struct drm_i915_private *dev_priv,
133 enum transcoder cpu_transcoder,
139 return HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder, i);
141 return ICL_VIDEO_DIP_PPS_DATA(cpu_transcoder, i);
142 case HDMI_INFOFRAME_TYPE_AVI:
143 return HSW_TVIDEO_DIP_AVI_DATA(cpu_transcoder, i);
144 case HDMI_INFOFRAME_TYPE_SPD:
145 return HSW_TVIDEO_DIP_SPD_DATA(cpu_transcoder, i);
146 case HDMI_INFOFRAME_TYPE_VENDOR:
147 return HSW_TVIDEO_DIP_VS_DATA(cpu_transcoder, i);
150 return INVALID_MMIO_REG;
154 static int hsw_dip_data_size(unsigned int type)
158 return VIDEO_DIP_VSC_DATA_SIZE;
160 return VIDEO_DIP_PPS_DATA_SIZE;
162 return VIDEO_DIP_DATA_SIZE;
166 static void g4x_write_infoframe(struct intel_encoder *encoder,
167 const struct intel_crtc_state *crtc_state,
169 const void *frame, ssize_t len)
171 const u32 *data = frame;
172 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
173 u32 val = I915_READ(VIDEO_DIP_CTL);
176 WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n");
178 val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
179 val |= g4x_infoframe_index(type);
181 val &= ~g4x_infoframe_enable(type);
183 I915_WRITE(VIDEO_DIP_CTL, val);
186 for (i = 0; i < len; i += 4) {
187 I915_WRITE(VIDEO_DIP_DATA, *data);
190 /* Write every possible data byte to force correct ECC calculation. */
191 for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
192 I915_WRITE(VIDEO_DIP_DATA, 0);
195 val |= g4x_infoframe_enable(type);
196 val &= ~VIDEO_DIP_FREQ_MASK;
197 val |= VIDEO_DIP_FREQ_VSYNC;
199 I915_WRITE(VIDEO_DIP_CTL, val);
200 POSTING_READ(VIDEO_DIP_CTL);
203 static bool g4x_infoframe_enabled(struct intel_encoder *encoder,
204 const struct intel_crtc_state *pipe_config)
206 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
207 u32 val = I915_READ(VIDEO_DIP_CTL);
209 if ((val & VIDEO_DIP_ENABLE) == 0)
212 if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(encoder->port))
215 return val & (VIDEO_DIP_ENABLE_AVI |
216 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD);
219 static void ibx_write_infoframe(struct intel_encoder *encoder,
220 const struct intel_crtc_state *crtc_state,
222 const void *frame, ssize_t len)
224 const u32 *data = frame;
225 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
226 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
227 i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
228 u32 val = I915_READ(reg);
231 WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n");
233 val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
234 val |= g4x_infoframe_index(type);
236 val &= ~g4x_infoframe_enable(type);
238 I915_WRITE(reg, val);
241 for (i = 0; i < len; i += 4) {
242 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
245 /* Write every possible data byte to force correct ECC calculation. */
246 for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
247 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), 0);
250 val |= g4x_infoframe_enable(type);
251 val &= ~VIDEO_DIP_FREQ_MASK;
252 val |= VIDEO_DIP_FREQ_VSYNC;
254 I915_WRITE(reg, val);
258 static bool ibx_infoframe_enabled(struct intel_encoder *encoder,
259 const struct intel_crtc_state *pipe_config)
261 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
262 enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe;
263 i915_reg_t reg = TVIDEO_DIP_CTL(pipe);
264 u32 val = I915_READ(reg);
266 if ((val & VIDEO_DIP_ENABLE) == 0)
269 if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(encoder->port))
272 return val & (VIDEO_DIP_ENABLE_AVI |
273 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
274 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
277 static void cpt_write_infoframe(struct intel_encoder *encoder,
278 const struct intel_crtc_state *crtc_state,
280 const void *frame, ssize_t len)
282 const u32 *data = frame;
283 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
284 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
285 i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
286 u32 val = I915_READ(reg);
289 WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n");
291 val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
292 val |= g4x_infoframe_index(type);
294 /* The DIP control register spec says that we need to update the AVI
295 * infoframe without clearing its enable bit */
296 if (type != HDMI_INFOFRAME_TYPE_AVI)
297 val &= ~g4x_infoframe_enable(type);
299 I915_WRITE(reg, val);
302 for (i = 0; i < len; i += 4) {
303 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
306 /* Write every possible data byte to force correct ECC calculation. */
307 for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
308 I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), 0);
311 val |= g4x_infoframe_enable(type);
312 val &= ~VIDEO_DIP_FREQ_MASK;
313 val |= VIDEO_DIP_FREQ_VSYNC;
315 I915_WRITE(reg, val);
319 static bool cpt_infoframe_enabled(struct intel_encoder *encoder,
320 const struct intel_crtc_state *pipe_config)
322 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
323 enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe;
324 u32 val = I915_READ(TVIDEO_DIP_CTL(pipe));
326 if ((val & VIDEO_DIP_ENABLE) == 0)
329 return val & (VIDEO_DIP_ENABLE_AVI |
330 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
331 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
334 static void vlv_write_infoframe(struct intel_encoder *encoder,
335 const struct intel_crtc_state *crtc_state,
337 const void *frame, ssize_t len)
339 const u32 *data = frame;
340 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
341 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
342 i915_reg_t reg = VLV_TVIDEO_DIP_CTL(intel_crtc->pipe);
343 u32 val = I915_READ(reg);
346 WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n");
348 val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
349 val |= g4x_infoframe_index(type);
351 val &= ~g4x_infoframe_enable(type);
353 I915_WRITE(reg, val);
356 for (i = 0; i < len; i += 4) {
357 I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
360 /* Write every possible data byte to force correct ECC calculation. */
361 for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
362 I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc->pipe), 0);
365 val |= g4x_infoframe_enable(type);
366 val &= ~VIDEO_DIP_FREQ_MASK;
367 val |= VIDEO_DIP_FREQ_VSYNC;
369 I915_WRITE(reg, val);
373 static bool vlv_infoframe_enabled(struct intel_encoder *encoder,
374 const struct intel_crtc_state *pipe_config)
376 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
377 enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe;
378 u32 val = I915_READ(VLV_TVIDEO_DIP_CTL(pipe));
380 if ((val & VIDEO_DIP_ENABLE) == 0)
383 if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(encoder->port))
386 return val & (VIDEO_DIP_ENABLE_AVI |
387 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
388 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
391 static void hsw_write_infoframe(struct intel_encoder *encoder,
392 const struct intel_crtc_state *crtc_state,
394 const void *frame, ssize_t len)
396 const u32 *data = frame;
397 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
398 enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
399 i915_reg_t ctl_reg = HSW_TVIDEO_DIP_CTL(cpu_transcoder);
402 u32 val = I915_READ(ctl_reg);
404 data_size = hsw_dip_data_size(type);
406 val &= ~hsw_infoframe_enable(type);
407 I915_WRITE(ctl_reg, val);
410 for (i = 0; i < len; i += 4) {
411 I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder,
412 type, i >> 2), *data);
415 /* Write every possible data byte to force correct ECC calculation. */
416 for (; i < data_size; i += 4)
417 I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder,
421 val |= hsw_infoframe_enable(type);
422 I915_WRITE(ctl_reg, val);
423 POSTING_READ(ctl_reg);
426 static bool hsw_infoframe_enabled(struct intel_encoder *encoder,
427 const struct intel_crtc_state *pipe_config)
429 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
430 u32 val = I915_READ(HSW_TVIDEO_DIP_CTL(pipe_config->cpu_transcoder));
432 return val & (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
433 VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
434 VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
438 * The data we write to the DIP data buffer registers is 1 byte bigger than the
439 * HDMI infoframe size because of an ECC/reserved byte at position 3 (starting
440 * at 0). It's also a byte used by DisplayPort so the same DIP registers can be
441 * used for both technologies.
443 * DW0: Reserved/ECC/DP | HB2 | HB1 | HB0
444 * DW1: DB3 | DB2 | DB1 | DB0
445 * DW2: DB7 | DB6 | DB5 | DB4
448 * (HB is Header Byte, DB is Data Byte)
450 * The hdmi pack() functions don't know about that hardware specific hole so we
451 * trick them by giving an offset into the buffer and moving back the header
454 static void intel_write_infoframe(struct intel_encoder *encoder,
455 const struct intel_crtc_state *crtc_state,
456 union hdmi_infoframe *frame)
458 struct intel_digital_port *intel_dig_port = enc_to_dig_port(&encoder->base);
459 u8 buffer[VIDEO_DIP_DATA_SIZE];
462 /* see comment above for the reason for this offset */
463 len = hdmi_infoframe_pack(frame, buffer + 1, sizeof(buffer) - 1);
467 /* Insert the 'hole' (see big comment above) at position 3 */
468 memmove(&buffer[0], &buffer[1], 3);
472 intel_dig_port->write_infoframe(encoder,
474 frame->any.type, buffer, len);
477 static void intel_hdmi_set_avi_infoframe(struct intel_encoder *encoder,
478 const struct intel_crtc_state *crtc_state,
479 const struct drm_connector_state *conn_state)
481 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
482 const struct drm_display_mode *adjusted_mode =
483 &crtc_state->base.adjusted_mode;
484 struct drm_connector *connector = &intel_hdmi->attached_connector->base;
485 bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported ||
486 connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB420;
487 union hdmi_infoframe frame;
490 ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
494 DRM_ERROR("couldn't fill AVI infoframe\n");
498 if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
499 frame.avi.colorspace = HDMI_COLORSPACE_YUV420;
500 else if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444)
501 frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
503 frame.avi.colorspace = HDMI_COLORSPACE_RGB;
505 drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode,
506 crtc_state->limited_color_range ?
507 HDMI_QUANTIZATION_RANGE_LIMITED :
508 HDMI_QUANTIZATION_RANGE_FULL,
509 intel_hdmi->rgb_quant_range_selectable,
512 drm_hdmi_avi_infoframe_content_type(&frame.avi,
515 /* TODO: handle pixel repetition for YCBCR420 outputs */
516 intel_write_infoframe(encoder, crtc_state,
520 static void intel_hdmi_set_spd_infoframe(struct intel_encoder *encoder,
521 const struct intel_crtc_state *crtc_state)
523 union hdmi_infoframe frame;
526 ret = hdmi_spd_infoframe_init(&frame.spd, "Intel", "Integrated gfx");
528 DRM_ERROR("couldn't fill SPD infoframe\n");
532 frame.spd.sdi = HDMI_SPD_SDI_PC;
534 intel_write_infoframe(encoder, crtc_state,
539 intel_hdmi_set_hdmi_infoframe(struct intel_encoder *encoder,
540 const struct intel_crtc_state *crtc_state,
541 const struct drm_connector_state *conn_state)
543 union hdmi_infoframe frame;
546 ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi,
547 conn_state->connector,
548 &crtc_state->base.adjusted_mode);
552 intel_write_infoframe(encoder, crtc_state,
556 static void g4x_set_infoframes(struct intel_encoder *encoder,
558 const struct intel_crtc_state *crtc_state,
559 const struct drm_connector_state *conn_state)
561 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
562 struct intel_digital_port *intel_dig_port = enc_to_dig_port(&encoder->base);
563 struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi;
564 i915_reg_t reg = VIDEO_DIP_CTL;
565 u32 val = I915_READ(reg);
566 u32 port = VIDEO_DIP_PORT(encoder->port);
568 assert_hdmi_port_disabled(intel_hdmi);
570 /* If the registers were not initialized yet, they might be zeroes,
571 * which means we're selecting the AVI DIP and we're setting its
572 * frequency to once. This seems to really confuse the HW and make
573 * things stop working (the register spec says the AVI always needs to
574 * be sent every VSync). So here we avoid writing to the register more
575 * than we need and also explicitly select the AVI DIP and explicitly
576 * set its frequency to every VSync. Avoiding to write it twice seems to
577 * be enough to solve the problem, but being defensive shouldn't hurt us
579 val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC;
582 if (!(val & VIDEO_DIP_ENABLE))
584 if (port != (val & VIDEO_DIP_PORT_MASK)) {
585 DRM_DEBUG_KMS("video DIP still enabled on port %c\n",
586 (val & VIDEO_DIP_PORT_MASK) >> 29);
589 val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI |
590 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD);
591 I915_WRITE(reg, val);
596 if (port != (val & VIDEO_DIP_PORT_MASK)) {
597 if (val & VIDEO_DIP_ENABLE) {
598 DRM_DEBUG_KMS("video DIP already enabled on port %c\n",
599 (val & VIDEO_DIP_PORT_MASK) >> 29);
602 val &= ~VIDEO_DIP_PORT_MASK;
606 val |= VIDEO_DIP_ENABLE;
607 val &= ~(VIDEO_DIP_ENABLE_AVI |
608 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD);
610 I915_WRITE(reg, val);
613 intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state);
614 intel_hdmi_set_spd_infoframe(encoder, crtc_state);
615 intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state);
618 static bool hdmi_sink_is_deep_color(const struct drm_connector_state *conn_state)
620 struct drm_connector *connector = conn_state->connector;
623 * HDMI cloning is only supported on g4x which doesn't
624 * support deep color or GCP infoframes anyway so no
625 * need to worry about multiple HDMI sinks here.
628 return connector->display_info.bpc > 8;
632 * Determine if default_phase=1 can be indicated in the GCP infoframe.
634 * From HDMI specification 1.4a:
635 * - The first pixel of each Video Data Period shall always have a pixel packing phase of 0
636 * - The first pixel following each Video Data Period shall have a pixel packing phase of 0
637 * - The PP bits shall be constant for all GCPs and will be equal to the last packing phase
638 * - The first pixel following every transition of HSYNC or VSYNC shall have a pixel packing
641 static bool gcp_default_phase_possible(int pipe_bpp,
642 const struct drm_display_mode *mode)
644 unsigned int pixels_per_group;
648 /* 4 pixels in 5 clocks */
649 pixels_per_group = 4;
652 /* 2 pixels in 3 clocks */
653 pixels_per_group = 2;
656 /* 1 pixel in 2 clocks */
657 pixels_per_group = 1;
660 /* phase information not relevant for 8bpc */
664 return mode->crtc_hdisplay % pixels_per_group == 0 &&
665 mode->crtc_htotal % pixels_per_group == 0 &&
666 mode->crtc_hblank_start % pixels_per_group == 0 &&
667 mode->crtc_hblank_end % pixels_per_group == 0 &&
668 mode->crtc_hsync_start % pixels_per_group == 0 &&
669 mode->crtc_hsync_end % pixels_per_group == 0 &&
670 ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0 ||
671 mode->crtc_htotal/2 % pixels_per_group == 0);
674 static bool intel_hdmi_set_gcp_infoframe(struct intel_encoder *encoder,
675 const struct intel_crtc_state *crtc_state,
676 const struct drm_connector_state *conn_state)
678 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
679 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
683 if (HAS_DDI(dev_priv))
684 reg = HSW_TVIDEO_DIP_GCP(crtc_state->cpu_transcoder);
685 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
686 reg = VLV_TVIDEO_DIP_GCP(crtc->pipe);
687 else if (HAS_PCH_SPLIT(dev_priv))
688 reg = TVIDEO_DIP_GCP(crtc->pipe);
692 /* Indicate color depth whenever the sink supports deep color */
693 if (hdmi_sink_is_deep_color(conn_state))
694 val |= GCP_COLOR_INDICATION;
696 /* Enable default_phase whenever the display mode is suitably aligned */
697 if (gcp_default_phase_possible(crtc_state->pipe_bpp,
698 &crtc_state->base.adjusted_mode))
699 val |= GCP_DEFAULT_PHASE_ENABLE;
701 I915_WRITE(reg, val);
706 static void ibx_set_infoframes(struct intel_encoder *encoder,
708 const struct intel_crtc_state *crtc_state,
709 const struct drm_connector_state *conn_state)
711 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
712 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
713 struct intel_digital_port *intel_dig_port = enc_to_dig_port(&encoder->base);
714 struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi;
715 i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
716 u32 val = I915_READ(reg);
717 u32 port = VIDEO_DIP_PORT(encoder->port);
719 assert_hdmi_port_disabled(intel_hdmi);
721 /* See the big comment in g4x_set_infoframes() */
722 val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC;
725 if (!(val & VIDEO_DIP_ENABLE))
727 val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI |
728 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
729 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
730 I915_WRITE(reg, val);
735 if (port != (val & VIDEO_DIP_PORT_MASK)) {
736 WARN(val & VIDEO_DIP_ENABLE,
737 "DIP already enabled on port %c\n",
738 (val & VIDEO_DIP_PORT_MASK) >> 29);
739 val &= ~VIDEO_DIP_PORT_MASK;
743 val |= VIDEO_DIP_ENABLE;
744 val &= ~(VIDEO_DIP_ENABLE_AVI |
745 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
746 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
748 if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state))
749 val |= VIDEO_DIP_ENABLE_GCP;
751 I915_WRITE(reg, val);
754 intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state);
755 intel_hdmi_set_spd_infoframe(encoder, crtc_state);
756 intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state);
759 static void cpt_set_infoframes(struct intel_encoder *encoder,
761 const struct intel_crtc_state *crtc_state,
762 const struct drm_connector_state *conn_state)
764 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
765 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
766 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
767 i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
768 u32 val = I915_READ(reg);
770 assert_hdmi_port_disabled(intel_hdmi);
772 /* See the big comment in g4x_set_infoframes() */
773 val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC;
776 if (!(val & VIDEO_DIP_ENABLE))
778 val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI |
779 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
780 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
781 I915_WRITE(reg, val);
786 /* Set both together, unset both together: see the spec. */
787 val |= VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI;
788 val &= ~(VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
789 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
791 if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state))
792 val |= VIDEO_DIP_ENABLE_GCP;
794 I915_WRITE(reg, val);
797 intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state);
798 intel_hdmi_set_spd_infoframe(encoder, crtc_state);
799 intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state);
802 static void vlv_set_infoframes(struct intel_encoder *encoder,
804 const struct intel_crtc_state *crtc_state,
805 const struct drm_connector_state *conn_state)
807 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
808 struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
809 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
810 i915_reg_t reg = VLV_TVIDEO_DIP_CTL(intel_crtc->pipe);
811 u32 val = I915_READ(reg);
812 u32 port = VIDEO_DIP_PORT(encoder->port);
814 assert_hdmi_port_disabled(intel_hdmi);
816 /* See the big comment in g4x_set_infoframes() */
817 val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC;
820 if (!(val & VIDEO_DIP_ENABLE))
822 val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI |
823 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
824 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
825 I915_WRITE(reg, val);
830 if (port != (val & VIDEO_DIP_PORT_MASK)) {
831 WARN(val & VIDEO_DIP_ENABLE,
832 "DIP already enabled on port %c\n",
833 (val & VIDEO_DIP_PORT_MASK) >> 29);
834 val &= ~VIDEO_DIP_PORT_MASK;
838 val |= VIDEO_DIP_ENABLE;
839 val &= ~(VIDEO_DIP_ENABLE_AVI |
840 VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT |
841 VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP);
843 if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state))
844 val |= VIDEO_DIP_ENABLE_GCP;
846 I915_WRITE(reg, val);
849 intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state);
850 intel_hdmi_set_spd_infoframe(encoder, crtc_state);
851 intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state);
854 static void hsw_set_infoframes(struct intel_encoder *encoder,
856 const struct intel_crtc_state *crtc_state,
857 const struct drm_connector_state *conn_state)
859 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
860 i915_reg_t reg = HSW_TVIDEO_DIP_CTL(crtc_state->cpu_transcoder);
861 u32 val = I915_READ(reg);
863 assert_hdmi_transcoder_func_disabled(dev_priv,
864 crtc_state->cpu_transcoder);
866 val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
867 VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
868 VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
871 I915_WRITE(reg, val);
876 if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state))
877 val |= VIDEO_DIP_ENABLE_GCP_HSW;
879 I915_WRITE(reg, val);
882 intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state);
883 intel_hdmi_set_spd_infoframe(encoder, crtc_state);
884 intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state);
887 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable)
889 struct drm_i915_private *dev_priv = to_i915(intel_hdmi_to_dev(hdmi));
890 struct i2c_adapter *adapter =
891 intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus);
893 if (hdmi->dp_dual_mode.type < DRM_DP_DUAL_MODE_TYPE2_DVI)
896 DRM_DEBUG_KMS("%s DP dual mode adaptor TMDS output\n",
897 enable ? "Enabling" : "Disabling");
899 drm_dp_dual_mode_set_tmds_output(hdmi->dp_dual_mode.type,
903 static int intel_hdmi_hdcp_read(struct intel_digital_port *intel_dig_port,
904 unsigned int offset, void *buffer, size_t size)
906 struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
907 struct drm_i915_private *dev_priv =
908 intel_dig_port->base.base.dev->dev_private;
909 struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
912 u8 start = offset & 0xff;
913 struct i2c_msg msgs[] = {
915 .addr = DRM_HDCP_DDC_ADDR,
921 .addr = DRM_HDCP_DDC_ADDR,
927 ret = i2c_transfer(adapter, msgs, ARRAY_SIZE(msgs));
928 if (ret == ARRAY_SIZE(msgs))
930 return ret >= 0 ? -EIO : ret;
933 static int intel_hdmi_hdcp_write(struct intel_digital_port *intel_dig_port,
934 unsigned int offset, void *buffer, size_t size)
936 struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
937 struct drm_i915_private *dev_priv =
938 intel_dig_port->base.base.dev->dev_private;
939 struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
945 write_buf = kzalloc(size + 1, GFP_KERNEL);
949 write_buf[0] = offset & 0xff;
950 memcpy(&write_buf[1], buffer, size);
952 msg.addr = DRM_HDCP_DDC_ADDR;
957 ret = i2c_transfer(adapter, &msg, 1);
968 int intel_hdmi_hdcp_write_an_aksv(struct intel_digital_port *intel_dig_port,
971 struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
972 struct drm_i915_private *dev_priv =
973 intel_dig_port->base.base.dev->dev_private;
974 struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
978 ret = intel_hdmi_hdcp_write(intel_dig_port, DRM_HDCP_DDC_AN, an,
981 DRM_DEBUG_KMS("Write An over DDC failed (%d)\n", ret);
985 ret = intel_gmbus_output_aksv(adapter);
987 DRM_DEBUG_KMS("Failed to output aksv (%d)\n", ret);
993 static int intel_hdmi_hdcp_read_bksv(struct intel_digital_port *intel_dig_port,
997 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_BKSV, bksv,
1000 DRM_DEBUG_KMS("Read Bksv over DDC failed (%d)\n", ret);
1005 int intel_hdmi_hdcp_read_bstatus(struct intel_digital_port *intel_dig_port,
1009 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_BSTATUS,
1010 bstatus, DRM_HDCP_BSTATUS_LEN);
1012 DRM_DEBUG_KMS("Read bstatus over DDC failed (%d)\n", ret);
1017 int intel_hdmi_hdcp_repeater_present(struct intel_digital_port *intel_dig_port,
1018 bool *repeater_present)
1023 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_BCAPS, &val, 1);
1025 DRM_DEBUG_KMS("Read bcaps over DDC failed (%d)\n", ret);
1028 *repeater_present = val & DRM_HDCP_DDC_BCAPS_REPEATER_PRESENT;
1033 int intel_hdmi_hdcp_read_ri_prime(struct intel_digital_port *intel_dig_port,
1037 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_RI_PRIME,
1038 ri_prime, DRM_HDCP_RI_LEN);
1040 DRM_DEBUG_KMS("Read Ri' over DDC failed (%d)\n", ret);
1045 int intel_hdmi_hdcp_read_ksv_ready(struct intel_digital_port *intel_dig_port,
1051 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_BCAPS, &val, 1);
1053 DRM_DEBUG_KMS("Read bcaps over DDC failed (%d)\n", ret);
1056 *ksv_ready = val & DRM_HDCP_DDC_BCAPS_KSV_FIFO_READY;
1061 int intel_hdmi_hdcp_read_ksv_fifo(struct intel_digital_port *intel_dig_port,
1062 int num_downstream, u8 *ksv_fifo)
1065 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_KSV_FIFO,
1066 ksv_fifo, num_downstream * DRM_HDCP_KSV_LEN);
1068 DRM_DEBUG_KMS("Read ksv fifo over DDC failed (%d)\n", ret);
1075 int intel_hdmi_hdcp_read_v_prime_part(struct intel_digital_port *intel_dig_port,
1080 if (i >= DRM_HDCP_V_PRIME_NUM_PARTS)
1083 ret = intel_hdmi_hdcp_read(intel_dig_port, DRM_HDCP_DDC_V_PRIME(i),
1084 part, DRM_HDCP_V_PRIME_PART_LEN);
1086 DRM_DEBUG_KMS("Read V'[%d] over DDC failed (%d)\n", i, ret);
1091 int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
1097 usleep_range(6, 60); /* Bspec says >= 6us */
1099 ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, enable);
1101 DRM_ERROR("%s HDCP signalling failed (%d)\n",
1102 enable ? "Enable" : "Disable", ret);
1109 bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port)
1111 struct drm_i915_private *dev_priv =
1112 intel_dig_port->base.base.dev->dev_private;
1113 enum port port = intel_dig_port->base.port;
1117 u8 shim[DRM_HDCP_RI_LEN];
1120 ret = intel_hdmi_hdcp_read_ri_prime(intel_dig_port, ri.shim);
1124 I915_WRITE(PORT_HDCP_RPRIME(port), ri.reg);
1126 /* Wait for Ri prime match */
1127 if (wait_for(I915_READ(PORT_HDCP_STATUS(port)) &
1128 (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), 1)) {
1129 DRM_ERROR("Ri' mismatch detected, link check failed (%x)\n",
1130 I915_READ(PORT_HDCP_STATUS(port)));
1136 static const struct intel_hdcp_shim intel_hdmi_hdcp_shim = {
1137 .write_an_aksv = intel_hdmi_hdcp_write_an_aksv,
1138 .read_bksv = intel_hdmi_hdcp_read_bksv,
1139 .read_bstatus = intel_hdmi_hdcp_read_bstatus,
1140 .repeater_present = intel_hdmi_hdcp_repeater_present,
1141 .read_ri_prime = intel_hdmi_hdcp_read_ri_prime,
1142 .read_ksv_ready = intel_hdmi_hdcp_read_ksv_ready,
1143 .read_ksv_fifo = intel_hdmi_hdcp_read_ksv_fifo,
1144 .read_v_prime_part = intel_hdmi_hdcp_read_v_prime_part,
1145 .toggle_signalling = intel_hdmi_hdcp_toggle_signalling,
1146 .check_link = intel_hdmi_hdcp_check_link,
1149 static void intel_hdmi_prepare(struct intel_encoder *encoder,
1150 const struct intel_crtc_state *crtc_state)
1152 struct drm_device *dev = encoder->base.dev;
1153 struct drm_i915_private *dev_priv = to_i915(dev);
1154 struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
1155 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1156 const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode;
1159 intel_dp_dual_mode_set_tmds_output(intel_hdmi, true);
1161 hdmi_val = SDVO_ENCODING_HDMI;
1162 if (!HAS_PCH_SPLIT(dev_priv) && crtc_state->limited_color_range)
1163 hdmi_val |= HDMI_COLOR_RANGE_16_235;
1164 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
1165 hdmi_val |= SDVO_VSYNC_ACTIVE_HIGH;
1166 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
1167 hdmi_val |= SDVO_HSYNC_ACTIVE_HIGH;
1169 if (crtc_state->pipe_bpp > 24)
1170 hdmi_val |= HDMI_COLOR_FORMAT_12bpc;
1172 hdmi_val |= SDVO_COLOR_FORMAT_8bpc;
1174 if (crtc_state->has_hdmi_sink)
1175 hdmi_val |= HDMI_MODE_SELECT_HDMI;
1177 if (HAS_PCH_CPT(dev_priv))
1178 hdmi_val |= SDVO_PIPE_SEL_CPT(crtc->pipe);
1179 else if (IS_CHERRYVIEW(dev_priv))
1180 hdmi_val |= SDVO_PIPE_SEL_CHV(crtc->pipe);
1182 hdmi_val |= SDVO_PIPE_SEL(crtc->pipe);
1184 I915_WRITE(intel_hdmi->hdmi_reg, hdmi_val);
1185 POSTING_READ(intel_hdmi->hdmi_reg);
1188 static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder,
1191 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1192 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1195 if (!intel_display_power_get_if_enabled(dev_priv,
1196 encoder->power_domain))
1199 ret = intel_sdvo_port_enabled(dev_priv, intel_hdmi->hdmi_reg, pipe);
1201 intel_display_power_put(dev_priv, encoder->power_domain);
1206 static void intel_hdmi_get_config(struct intel_encoder *encoder,
1207 struct intel_crtc_state *pipe_config)
1209 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1210 struct intel_digital_port *intel_dig_port = hdmi_to_dig_port(intel_hdmi);
1211 struct drm_device *dev = encoder->base.dev;
1212 struct drm_i915_private *dev_priv = to_i915(dev);
1216 pipe_config->output_types |= BIT(INTEL_OUTPUT_HDMI);
1218 tmp = I915_READ(intel_hdmi->hdmi_reg);
1220 if (tmp & SDVO_HSYNC_ACTIVE_HIGH)
1221 flags |= DRM_MODE_FLAG_PHSYNC;
1223 flags |= DRM_MODE_FLAG_NHSYNC;
1225 if (tmp & SDVO_VSYNC_ACTIVE_HIGH)
1226 flags |= DRM_MODE_FLAG_PVSYNC;
1228 flags |= DRM_MODE_FLAG_NVSYNC;
1230 if (tmp & HDMI_MODE_SELECT_HDMI)
1231 pipe_config->has_hdmi_sink = true;
1233 if (intel_dig_port->infoframe_enabled(encoder, pipe_config))
1234 pipe_config->has_infoframe = true;
1236 if (tmp & SDVO_AUDIO_ENABLE)
1237 pipe_config->has_audio = true;
1239 if (!HAS_PCH_SPLIT(dev_priv) &&
1240 tmp & HDMI_COLOR_RANGE_16_235)
1241 pipe_config->limited_color_range = true;
1243 pipe_config->base.adjusted_mode.flags |= flags;
1245 if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc)
1246 dotclock = pipe_config->port_clock * 2 / 3;
1248 dotclock = pipe_config->port_clock;
1250 if (pipe_config->pixel_multiplier)
1251 dotclock /= pipe_config->pixel_multiplier;
1253 pipe_config->base.adjusted_mode.crtc_clock = dotclock;
1255 pipe_config->lane_count = 4;
1258 static void intel_enable_hdmi_audio(struct intel_encoder *encoder,
1259 const struct intel_crtc_state *pipe_config,
1260 const struct drm_connector_state *conn_state)
1262 struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
1264 WARN_ON(!pipe_config->has_hdmi_sink);
1265 DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n",
1266 pipe_name(crtc->pipe));
1267 intel_audio_codec_enable(encoder, pipe_config, conn_state);
1270 static void g4x_enable_hdmi(struct intel_encoder *encoder,
1271 const struct intel_crtc_state *pipe_config,
1272 const struct drm_connector_state *conn_state)
1274 struct drm_device *dev = encoder->base.dev;
1275 struct drm_i915_private *dev_priv = to_i915(dev);
1276 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1279 temp = I915_READ(intel_hdmi->hdmi_reg);
1281 temp |= SDVO_ENABLE;
1282 if (pipe_config->has_audio)
1283 temp |= SDVO_AUDIO_ENABLE;
1285 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1286 POSTING_READ(intel_hdmi->hdmi_reg);
1288 if (pipe_config->has_audio)
1289 intel_enable_hdmi_audio(encoder, pipe_config, conn_state);
1292 static void ibx_enable_hdmi(struct intel_encoder *encoder,
1293 const struct intel_crtc_state *pipe_config,
1294 const struct drm_connector_state *conn_state)
1296 struct drm_device *dev = encoder->base.dev;
1297 struct drm_i915_private *dev_priv = to_i915(dev);
1298 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1301 temp = I915_READ(intel_hdmi->hdmi_reg);
1303 temp |= SDVO_ENABLE;
1304 if (pipe_config->has_audio)
1305 temp |= SDVO_AUDIO_ENABLE;
1308 * HW workaround, need to write this twice for issue
1309 * that may result in first write getting masked.
1311 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1312 POSTING_READ(intel_hdmi->hdmi_reg);
1313 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1314 POSTING_READ(intel_hdmi->hdmi_reg);
1317 * HW workaround, need to toggle enable bit off and on
1318 * for 12bpc with pixel repeat.
1320 * FIXME: BSpec says this should be done at the end of
1321 * of the modeset sequence, so not sure if this isn't too soon.
1323 if (pipe_config->pipe_bpp > 24 &&
1324 pipe_config->pixel_multiplier > 1) {
1325 I915_WRITE(intel_hdmi->hdmi_reg, temp & ~SDVO_ENABLE);
1326 POSTING_READ(intel_hdmi->hdmi_reg);
1329 * HW workaround, need to write this twice for issue
1330 * that may result in first write getting masked.
1332 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1333 POSTING_READ(intel_hdmi->hdmi_reg);
1334 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1335 POSTING_READ(intel_hdmi->hdmi_reg);
1338 if (pipe_config->has_audio)
1339 intel_enable_hdmi_audio(encoder, pipe_config, conn_state);
1342 static void cpt_enable_hdmi(struct intel_encoder *encoder,
1343 const struct intel_crtc_state *pipe_config,
1344 const struct drm_connector_state *conn_state)
1346 struct drm_device *dev = encoder->base.dev;
1347 struct drm_i915_private *dev_priv = to_i915(dev);
1348 struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
1349 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1350 enum pipe pipe = crtc->pipe;
1353 temp = I915_READ(intel_hdmi->hdmi_reg);
1355 temp |= SDVO_ENABLE;
1356 if (pipe_config->has_audio)
1357 temp |= SDVO_AUDIO_ENABLE;
1360 * WaEnableHDMI8bpcBefore12bpc:snb,ivb
1362 * The procedure for 12bpc is as follows:
1363 * 1. disable HDMI clock gating
1364 * 2. enable HDMI with 8bpc
1365 * 3. enable HDMI with 12bpc
1366 * 4. enable HDMI clock gating
1369 if (pipe_config->pipe_bpp > 24) {
1370 I915_WRITE(TRANS_CHICKEN1(pipe),
1371 I915_READ(TRANS_CHICKEN1(pipe)) |
1372 TRANS_CHICKEN1_HDMIUNIT_GC_DISABLE);
1374 temp &= ~SDVO_COLOR_FORMAT_MASK;
1375 temp |= SDVO_COLOR_FORMAT_8bpc;
1378 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1379 POSTING_READ(intel_hdmi->hdmi_reg);
1381 if (pipe_config->pipe_bpp > 24) {
1382 temp &= ~SDVO_COLOR_FORMAT_MASK;
1383 temp |= HDMI_COLOR_FORMAT_12bpc;
1385 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1386 POSTING_READ(intel_hdmi->hdmi_reg);
1388 I915_WRITE(TRANS_CHICKEN1(pipe),
1389 I915_READ(TRANS_CHICKEN1(pipe)) &
1390 ~TRANS_CHICKEN1_HDMIUNIT_GC_DISABLE);
1393 if (pipe_config->has_audio)
1394 intel_enable_hdmi_audio(encoder, pipe_config, conn_state);
1397 static void vlv_enable_hdmi(struct intel_encoder *encoder,
1398 const struct intel_crtc_state *pipe_config,
1399 const struct drm_connector_state *conn_state)
1403 static void intel_disable_hdmi(struct intel_encoder *encoder,
1404 const struct intel_crtc_state *old_crtc_state,
1405 const struct drm_connector_state *old_conn_state)
1407 struct drm_device *dev = encoder->base.dev;
1408 struct drm_i915_private *dev_priv = to_i915(dev);
1409 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1410 struct intel_digital_port *intel_dig_port =
1411 hdmi_to_dig_port(intel_hdmi);
1412 struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
1415 temp = I915_READ(intel_hdmi->hdmi_reg);
1417 temp &= ~(SDVO_ENABLE | SDVO_AUDIO_ENABLE);
1418 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1419 POSTING_READ(intel_hdmi->hdmi_reg);
1422 * HW workaround for IBX, we need to move the port
1423 * to transcoder A after disabling it to allow the
1424 * matching DP port to be enabled on transcoder A.
1426 if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) {
1428 * We get CPU/PCH FIFO underruns on the other pipe when
1429 * doing the workaround. Sweep them under the rug.
1431 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1432 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1434 temp &= ~SDVO_PIPE_SEL_MASK;
1435 temp |= SDVO_ENABLE | SDVO_PIPE_SEL(PIPE_A);
1437 * HW workaround, need to write this twice for issue
1438 * that may result in first write getting masked.
1440 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1441 POSTING_READ(intel_hdmi->hdmi_reg);
1442 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1443 POSTING_READ(intel_hdmi->hdmi_reg);
1445 temp &= ~SDVO_ENABLE;
1446 I915_WRITE(intel_hdmi->hdmi_reg, temp);
1447 POSTING_READ(intel_hdmi->hdmi_reg);
1449 intel_wait_for_vblank_if_active(dev_priv, PIPE_A);
1450 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1451 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1454 intel_dig_port->set_infoframes(encoder,
1456 old_crtc_state, old_conn_state);
1458 intel_dp_dual_mode_set_tmds_output(intel_hdmi, false);
1461 static void g4x_disable_hdmi(struct intel_encoder *encoder,
1462 const struct intel_crtc_state *old_crtc_state,
1463 const struct drm_connector_state *old_conn_state)
1465 if (old_crtc_state->has_audio)
1466 intel_audio_codec_disable(encoder,
1467 old_crtc_state, old_conn_state);
1469 intel_disable_hdmi(encoder, old_crtc_state, old_conn_state);
1472 static void pch_disable_hdmi(struct intel_encoder *encoder,
1473 const struct intel_crtc_state *old_crtc_state,
1474 const struct drm_connector_state *old_conn_state)
1476 if (old_crtc_state->has_audio)
1477 intel_audio_codec_disable(encoder,
1478 old_crtc_state, old_conn_state);
1481 static void pch_post_disable_hdmi(struct intel_encoder *encoder,
1482 const struct intel_crtc_state *old_crtc_state,
1483 const struct drm_connector_state *old_conn_state)
1485 intel_disable_hdmi(encoder, old_crtc_state, old_conn_state);
1488 static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder)
1490 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1491 const struct ddi_vbt_port_info *info =
1492 &dev_priv->vbt.ddi_port_info[encoder->port];
1495 if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
1496 max_tmds_clock = 594000;
1497 else if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
1498 max_tmds_clock = 300000;
1499 else if (INTEL_GEN(dev_priv) >= 5)
1500 max_tmds_clock = 225000;
1502 max_tmds_clock = 165000;
1504 if (info->max_tmds_clock)
1505 max_tmds_clock = min(max_tmds_clock, info->max_tmds_clock);
1507 return max_tmds_clock;
1510 static int hdmi_port_clock_limit(struct intel_hdmi *hdmi,
1511 bool respect_downstream_limits,
1514 struct intel_encoder *encoder = &hdmi_to_dig_port(hdmi)->base;
1515 int max_tmds_clock = intel_hdmi_source_max_tmds_clock(encoder);
1517 if (respect_downstream_limits) {
1518 struct intel_connector *connector = hdmi->attached_connector;
1519 const struct drm_display_info *info = &connector->base.display_info;
1521 if (hdmi->dp_dual_mode.max_tmds_clock)
1522 max_tmds_clock = min(max_tmds_clock,
1523 hdmi->dp_dual_mode.max_tmds_clock);
1525 if (info->max_tmds_clock)
1526 max_tmds_clock = min(max_tmds_clock,
1527 info->max_tmds_clock);
1528 else if (!hdmi->has_hdmi_sink || force_dvi)
1529 max_tmds_clock = min(max_tmds_clock, 165000);
1532 return max_tmds_clock;
1535 static enum drm_mode_status
1536 hdmi_port_clock_valid(struct intel_hdmi *hdmi,
1537 int clock, bool respect_downstream_limits,
1540 struct drm_i915_private *dev_priv = to_i915(intel_hdmi_to_dev(hdmi));
1543 return MODE_CLOCK_LOW;
1544 if (clock > hdmi_port_clock_limit(hdmi, respect_downstream_limits, force_dvi))
1545 return MODE_CLOCK_HIGH;
1547 /* BXT DPLL can't generate 223-240 MHz */
1548 if (IS_GEN9_LP(dev_priv) && clock > 223333 && clock < 240000)
1549 return MODE_CLOCK_RANGE;
1551 /* CHV DPLL can't generate 216-240 MHz */
1552 if (IS_CHERRYVIEW(dev_priv) && clock > 216000 && clock < 240000)
1553 return MODE_CLOCK_RANGE;
1558 static enum drm_mode_status
1559 intel_hdmi_mode_valid(struct drm_connector *connector,
1560 struct drm_display_mode *mode)
1562 struct intel_hdmi *hdmi = intel_attached_hdmi(connector);
1563 struct drm_device *dev = intel_hdmi_to_dev(hdmi);
1564 struct drm_i915_private *dev_priv = to_i915(dev);
1565 enum drm_mode_status status;
1567 int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
1569 READ_ONCE(to_intel_digital_connector_state(connector->state)->force_audio) == HDMI_AUDIO_OFF_DVI;
1571 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1572 return MODE_NO_DBLESCAN;
1574 clock = mode->clock;
1576 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1579 if (clock > max_dotclk)
1580 return MODE_CLOCK_HIGH;
1582 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
1585 if (drm_mode_is_420_only(&connector->display_info, mode))
1588 /* check if we can do 8bpc */
1589 status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi);
1591 if (hdmi->has_hdmi_sink && !force_dvi) {
1592 /* if we can't do 8bpc we may still be able to do 12bpc */
1593 if (status != MODE_OK && !HAS_GMCH_DISPLAY(dev_priv))
1594 status = hdmi_port_clock_valid(hdmi, clock * 3 / 2,
1597 /* if we can't do 8,12bpc we may still be able to do 10bpc */
1598 if (status != MODE_OK && INTEL_GEN(dev_priv) >= 11)
1599 status = hdmi_port_clock_valid(hdmi, clock * 5 / 4,
1606 static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state,
1609 struct drm_i915_private *dev_priv =
1610 to_i915(crtc_state->base.crtc->dev);
1611 struct drm_atomic_state *state = crtc_state->base.state;
1612 struct drm_connector_state *connector_state;
1613 struct drm_connector *connector;
1614 const struct drm_display_mode *adjusted_mode =
1615 &crtc_state->base.adjusted_mode;
1618 if (HAS_GMCH_DISPLAY(dev_priv))
1621 if (bpc == 10 && INTEL_GEN(dev_priv) < 11)
1624 if (crtc_state->pipe_bpp <= 8*3)
1627 if (!crtc_state->has_hdmi_sink)
1631 * HDMI deep color affects the clocks, so it's only possible
1632 * when not cloning with other encoder types.
1634 if (crtc_state->output_types != 1 << INTEL_OUTPUT_HDMI)
1637 for_each_new_connector_in_state(state, connector, connector_state, i) {
1638 const struct drm_display_info *info = &connector->display_info;
1640 if (connector_state->crtc != crtc_state->base.crtc)
1643 if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) {
1644 const struct drm_hdmi_info *hdmi = &info->hdmi;
1646 if (bpc == 12 && !(hdmi->y420_dc_modes &
1647 DRM_EDID_YCBCR420_DC_36))
1649 else if (bpc == 10 && !(hdmi->y420_dc_modes &
1650 DRM_EDID_YCBCR420_DC_30))
1653 if (bpc == 12 && !(info->edid_hdmi_dc_modes &
1654 DRM_EDID_HDMI_DC_36))
1656 else if (bpc == 10 && !(info->edid_hdmi_dc_modes &
1657 DRM_EDID_HDMI_DC_30))
1662 /* Display WA #1139: glk */
1663 if (bpc == 12 && IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) &&
1664 adjusted_mode->htotal > 5460)
1667 /* Display Wa_1405510057:icl */
1668 if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
1669 bpc == 10 && IS_ICELAKE(dev_priv) &&
1670 (adjusted_mode->crtc_hblank_end -
1671 adjusted_mode->crtc_hblank_start) % 8 == 2)
1678 intel_hdmi_ycbcr420_config(struct drm_connector *connector,
1679 struct intel_crtc_state *config,
1680 int *clock_12bpc, int *clock_10bpc,
1683 struct intel_crtc *intel_crtc = to_intel_crtc(config->base.crtc);
1685 if (!connector->ycbcr_420_allowed) {
1686 DRM_ERROR("Platform doesn't support YCBCR420 output\n");
1690 /* YCBCR420 TMDS rate requirement is half the pixel clock */
1691 config->port_clock /= 2;
1695 config->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
1697 /* YCBCR 420 output conversion needs a scaler */
1698 if (skl_update_scaler_crtc(config)) {
1699 DRM_DEBUG_KMS("Scaler allocation for output failed\n");
1703 intel_pch_panel_fitting(intel_crtc, config,
1704 DRM_MODE_SCALE_FULLSCREEN);
1709 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1710 struct intel_crtc_state *pipe_config,
1711 struct drm_connector_state *conn_state)
1713 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
1714 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1715 struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
1716 struct drm_connector *connector = conn_state->connector;
1717 struct drm_scdc *scdc = &connector->display_info.hdmi.scdc;
1718 struct intel_digital_connector_state *intel_conn_state =
1719 to_intel_digital_connector_state(conn_state);
1720 int clock_8bpc = pipe_config->base.adjusted_mode.crtc_clock;
1721 int clock_10bpc = clock_8bpc * 5 / 4;
1722 int clock_12bpc = clock_8bpc * 3 / 2;
1724 bool force_dvi = intel_conn_state->force_audio == HDMI_AUDIO_OFF_DVI;
1726 if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
1729 pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
1730 pipe_config->has_hdmi_sink = !force_dvi && intel_hdmi->has_hdmi_sink;
1732 if (pipe_config->has_hdmi_sink)
1733 pipe_config->has_infoframe = true;
1735 if (intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_AUTO) {
1736 /* See CEA-861-E - 5.1 Default Encoding Parameters */
1737 pipe_config->limited_color_range =
1738 pipe_config->has_hdmi_sink &&
1739 drm_default_rgb_quant_range(adjusted_mode) ==
1740 HDMI_QUANTIZATION_RANGE_LIMITED;
1742 pipe_config->limited_color_range =
1743 intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_LIMITED;
1746 if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) {
1747 pipe_config->pixel_multiplier = 2;
1753 if (drm_mode_is_420_only(&connector->display_info, adjusted_mode)) {
1754 if (!intel_hdmi_ycbcr420_config(connector, pipe_config,
1755 &clock_12bpc, &clock_10bpc,
1757 DRM_ERROR("Can't support YCBCR420 output\n");
1762 if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv))
1763 pipe_config->has_pch_encoder = true;
1765 if (pipe_config->has_hdmi_sink) {
1766 if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO)
1767 pipe_config->has_audio = intel_hdmi->has_audio;
1769 pipe_config->has_audio =
1770 intel_conn_state->force_audio == HDMI_AUDIO_ON;
1774 * Note that g4x/vlv don't support 12bpc hdmi outputs. We also need
1775 * to check that the higher clock still fits within limits.
1777 if (hdmi_deep_color_possible(pipe_config, 12) &&
1778 hdmi_port_clock_valid(intel_hdmi, clock_12bpc,
1779 true, force_dvi) == MODE_OK) {
1780 DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n");
1783 /* Need to adjust the port link by 1.5x for 12bpc. */
1784 pipe_config->port_clock = clock_12bpc;
1785 } else if (hdmi_deep_color_possible(pipe_config, 10) &&
1786 hdmi_port_clock_valid(intel_hdmi, clock_10bpc,
1787 true, force_dvi) == MODE_OK) {
1788 DRM_DEBUG_KMS("picking bpc to 10 for HDMI output\n");
1789 desired_bpp = 10 * 3;
1791 /* Need to adjust the port link by 1.25x for 10bpc. */
1792 pipe_config->port_clock = clock_10bpc;
1794 DRM_DEBUG_KMS("picking bpc to 8 for HDMI output\n");
1797 pipe_config->port_clock = clock_8bpc;
1800 if (!pipe_config->bw_constrained) {
1801 DRM_DEBUG_KMS("forcing pipe bpp to %i for HDMI\n", desired_bpp);
1802 pipe_config->pipe_bpp = desired_bpp;
1805 if (hdmi_port_clock_valid(intel_hdmi, pipe_config->port_clock,
1806 false, force_dvi) != MODE_OK) {
1807 DRM_DEBUG_KMS("unsupported HDMI clock, rejecting mode\n");
1811 /* Set user selected PAR to incoming mode's member */
1812 adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio;
1814 pipe_config->lane_count = 4;
1816 if (scdc->scrambling.supported && (INTEL_GEN(dev_priv) >= 10 ||
1817 IS_GEMINILAKE(dev_priv))) {
1818 if (scdc->scrambling.low_rates)
1819 pipe_config->hdmi_scrambling = true;
1821 if (pipe_config->port_clock > 340000) {
1822 pipe_config->hdmi_scrambling = true;
1823 pipe_config->hdmi_high_tmds_clock_ratio = true;
1831 intel_hdmi_unset_edid(struct drm_connector *connector)
1833 struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
1835 intel_hdmi->has_hdmi_sink = false;
1836 intel_hdmi->has_audio = false;
1837 intel_hdmi->rgb_quant_range_selectable = false;
1839 intel_hdmi->dp_dual_mode.type = DRM_DP_DUAL_MODE_NONE;
1840 intel_hdmi->dp_dual_mode.max_tmds_clock = 0;
1842 kfree(to_intel_connector(connector)->detect_edid);
1843 to_intel_connector(connector)->detect_edid = NULL;
1847 intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid)
1849 struct drm_i915_private *dev_priv = to_i915(connector->dev);
1850 struct intel_hdmi *hdmi = intel_attached_hdmi(connector);
1851 enum port port = hdmi_to_dig_port(hdmi)->base.port;
1852 struct i2c_adapter *adapter =
1853 intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus);
1854 enum drm_dp_dual_mode_type type = drm_dp_dual_mode_detect(adapter);
1857 * Type 1 DVI adaptors are not required to implement any
1858 * registers, so we can't always detect their presence.
1859 * Ideally we should be able to check the state of the
1860 * CONFIG1 pin, but no such luck on our hardware.
1862 * The only method left to us is to check the VBT to see
1863 * if the port is a dual mode capable DP port. But let's
1864 * only do that when we sucesfully read the EDID, to avoid
1865 * confusing log messages about DP dual mode adaptors when
1866 * there's nothing connected to the port.
1868 if (type == DRM_DP_DUAL_MODE_UNKNOWN) {
1869 /* An overridden EDID imply that we want this port for testing.
1870 * Make sure not to set limits for that port.
1872 if (has_edid && !connector->override_edid &&
1873 intel_bios_is_port_dp_dual_mode(dev_priv, port)) {
1874 DRM_DEBUG_KMS("Assuming DP dual mode adaptor presence based on VBT\n");
1875 type = DRM_DP_DUAL_MODE_TYPE1_DVI;
1877 type = DRM_DP_DUAL_MODE_NONE;
1881 if (type == DRM_DP_DUAL_MODE_NONE)
1884 hdmi->dp_dual_mode.type = type;
1885 hdmi->dp_dual_mode.max_tmds_clock =
1886 drm_dp_dual_mode_max_tmds_clock(type, adapter);
1888 DRM_DEBUG_KMS("DP dual mode adaptor (%s) detected (max TMDS clock: %d kHz)\n",
1889 drm_dp_get_dual_mode_type_name(type),
1890 hdmi->dp_dual_mode.max_tmds_clock);
1894 intel_hdmi_set_edid(struct drm_connector *connector)
1896 struct drm_i915_private *dev_priv = to_i915(connector->dev);
1897 struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
1899 bool connected = false;
1900 struct i2c_adapter *i2c;
1902 intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
1904 i2c = intel_gmbus_get_adapter(dev_priv, intel_hdmi->ddc_bus);
1906 edid = drm_get_edid(connector, i2c);
1908 if (!edid && !intel_gmbus_is_forced_bit(i2c)) {
1909 DRM_DEBUG_KMS("HDMI GMBUS EDID read failed, retry using GPIO bit-banging\n");
1910 intel_gmbus_force_bit(i2c, true);
1911 edid = drm_get_edid(connector, i2c);
1912 intel_gmbus_force_bit(i2c, false);
1915 intel_hdmi_dp_dual_mode_detect(connector, edid != NULL);
1917 intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
1919 to_intel_connector(connector)->detect_edid = edid;
1920 if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
1921 intel_hdmi->rgb_quant_range_selectable =
1922 drm_rgb_quant_range_selectable(edid);
1924 intel_hdmi->has_audio = drm_detect_monitor_audio(edid);
1925 intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
1930 cec_notifier_set_phys_addr_from_edid(intel_hdmi->cec_notifier, edid);
1935 static enum drm_connector_status
1936 intel_hdmi_detect(struct drm_connector *connector, bool force)
1938 enum drm_connector_status status = connector_status_disconnected;
1939 struct drm_i915_private *dev_priv = to_i915(connector->dev);
1940 struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
1941 struct intel_encoder *encoder = &hdmi_to_dig_port(intel_hdmi)->base;
1943 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1944 connector->base.id, connector->name);
1946 intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
1948 if (IS_ICELAKE(dev_priv) &&
1949 !intel_digital_port_connected(encoder))
1952 intel_hdmi_unset_edid(connector);
1954 if (intel_hdmi_set_edid(connector))
1955 status = connector_status_connected;
1958 intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
1960 if (status != connector_status_connected)
1961 cec_notifier_phys_addr_invalidate(intel_hdmi->cec_notifier);
1967 intel_hdmi_force(struct drm_connector *connector)
1969 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1970 connector->base.id, connector->name);
1972 intel_hdmi_unset_edid(connector);
1974 if (connector->status != connector_status_connected)
1977 intel_hdmi_set_edid(connector);
1980 static int intel_hdmi_get_modes(struct drm_connector *connector)
1984 edid = to_intel_connector(connector)->detect_edid;
1988 return intel_connector_update_modes(connector, edid);
1991 static void intel_hdmi_pre_enable(struct intel_encoder *encoder,
1992 const struct intel_crtc_state *pipe_config,
1993 const struct drm_connector_state *conn_state)
1995 struct intel_digital_port *intel_dig_port =
1996 enc_to_dig_port(&encoder->base);
1998 intel_hdmi_prepare(encoder, pipe_config);
2000 intel_dig_port->set_infoframes(encoder,
2001 pipe_config->has_infoframe,
2002 pipe_config, conn_state);
2005 static void vlv_hdmi_pre_enable(struct intel_encoder *encoder,
2006 const struct intel_crtc_state *pipe_config,
2007 const struct drm_connector_state *conn_state)
2009 struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
2010 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2012 vlv_phy_pre_encoder_enable(encoder, pipe_config);
2015 vlv_set_phy_signal_level(encoder, 0x2b245f5f, 0x00002000, 0x5578b83a,
2018 dport->set_infoframes(encoder,
2019 pipe_config->has_infoframe,
2020 pipe_config, conn_state);
2022 g4x_enable_hdmi(encoder, pipe_config, conn_state);
2024 vlv_wait_port_ready(dev_priv, dport, 0x0);
2027 static void vlv_hdmi_pre_pll_enable(struct intel_encoder *encoder,
2028 const struct intel_crtc_state *pipe_config,
2029 const struct drm_connector_state *conn_state)
2031 intel_hdmi_prepare(encoder, pipe_config);
2033 vlv_phy_pre_pll_enable(encoder, pipe_config);
2036 static void chv_hdmi_pre_pll_enable(struct intel_encoder *encoder,
2037 const struct intel_crtc_state *pipe_config,
2038 const struct drm_connector_state *conn_state)
2040 intel_hdmi_prepare(encoder, pipe_config);
2042 chv_phy_pre_pll_enable(encoder, pipe_config);
2045 static void chv_hdmi_post_pll_disable(struct intel_encoder *encoder,
2046 const struct intel_crtc_state *old_crtc_state,
2047 const struct drm_connector_state *old_conn_state)
2049 chv_phy_post_pll_disable(encoder, old_crtc_state);
2052 static void vlv_hdmi_post_disable(struct intel_encoder *encoder,
2053 const struct intel_crtc_state *old_crtc_state,
2054 const struct drm_connector_state *old_conn_state)
2056 /* Reset lanes to avoid HDMI flicker (VLV w/a) */
2057 vlv_phy_reset_lanes(encoder, old_crtc_state);
2060 static void chv_hdmi_post_disable(struct intel_encoder *encoder,
2061 const struct intel_crtc_state *old_crtc_state,
2062 const struct drm_connector_state *old_conn_state)
2064 struct drm_device *dev = encoder->base.dev;
2065 struct drm_i915_private *dev_priv = to_i915(dev);
2067 mutex_lock(&dev_priv->sb_lock);
2069 /* Assert data lane reset */
2070 chv_data_lane_soft_reset(encoder, old_crtc_state, true);
2072 mutex_unlock(&dev_priv->sb_lock);
2075 static void chv_hdmi_pre_enable(struct intel_encoder *encoder,
2076 const struct intel_crtc_state *pipe_config,
2077 const struct drm_connector_state *conn_state)
2079 struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
2080 struct drm_device *dev = encoder->base.dev;
2081 struct drm_i915_private *dev_priv = to_i915(dev);
2083 chv_phy_pre_encoder_enable(encoder, pipe_config);
2085 /* FIXME: Program the support xxx V-dB */
2087 chv_set_phy_signal_level(encoder, 128, 102, false);
2089 dport->set_infoframes(encoder,
2090 pipe_config->has_infoframe,
2091 pipe_config, conn_state);
2093 g4x_enable_hdmi(encoder, pipe_config, conn_state);
2095 vlv_wait_port_ready(dev_priv, dport, 0x0);
2097 /* Second common lane will stay alive on its own now */
2098 chv_phy_release_cl2_override(encoder);
2102 intel_hdmi_connector_register(struct drm_connector *connector)
2106 ret = intel_connector_register(connector);
2110 i915_debugfs_connector_add(connector);
2115 static void intel_hdmi_destroy(struct drm_connector *connector)
2117 if (intel_attached_hdmi(connector)->cec_notifier)
2118 cec_notifier_put(intel_attached_hdmi(connector)->cec_notifier);
2120 intel_connector_destroy(connector);
2123 static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
2124 .detect = intel_hdmi_detect,
2125 .force = intel_hdmi_force,
2126 .fill_modes = drm_helper_probe_single_connector_modes,
2127 .atomic_get_property = intel_digital_connector_atomic_get_property,
2128 .atomic_set_property = intel_digital_connector_atomic_set_property,
2129 .late_register = intel_hdmi_connector_register,
2130 .early_unregister = intel_connector_unregister,
2131 .destroy = intel_hdmi_destroy,
2132 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
2133 .atomic_duplicate_state = intel_digital_connector_duplicate_state,
2136 static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
2137 .get_modes = intel_hdmi_get_modes,
2138 .mode_valid = intel_hdmi_mode_valid,
2139 .atomic_check = intel_digital_connector_atomic_check,
2142 static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
2143 .destroy = intel_encoder_destroy,
2147 intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *connector)
2149 struct drm_i915_private *dev_priv = to_i915(connector->dev);
2151 intel_attach_force_audio_property(connector);
2152 intel_attach_broadcast_rgb_property(connector);
2153 intel_attach_aspect_ratio_property(connector);
2154 drm_connector_attach_content_type_property(connector);
2155 connector->state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
2157 if (!HAS_GMCH_DISPLAY(dev_priv))
2158 drm_connector_attach_max_bpc_property(connector, 8, 12);
2162 * intel_hdmi_handle_sink_scrambling: handle sink scrambling/clock ratio setup
2163 * @encoder: intel_encoder
2164 * @connector: drm_connector
2165 * @high_tmds_clock_ratio = bool to indicate if the function needs to set
2166 * or reset the high tmds clock ratio for scrambling
2167 * @scrambling: bool to Indicate if the function needs to set or reset
2170 * This function handles scrambling on HDMI 2.0 capable sinks.
2171 * If required clock rate is > 340 Mhz && scrambling is supported by sink
2172 * it enables scrambling. This should be called before enabling the HDMI
2173 * 2.0 port, as the sink can choose to disable the scrambling if it doesn't
2174 * detect a scrambled clock within 100 ms.
2177 * True on success, false on failure.
2179 bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
2180 struct drm_connector *connector,
2181 bool high_tmds_clock_ratio,
2184 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
2185 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
2186 struct drm_scrambling *sink_scrambling =
2187 &connector->display_info.hdmi.scdc.scrambling;
2188 struct i2c_adapter *adapter =
2189 intel_gmbus_get_adapter(dev_priv, intel_hdmi->ddc_bus);
2191 if (!sink_scrambling->supported)
2194 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] scrambling=%s, TMDS bit clock ratio=1/%d\n",
2195 connector->base.id, connector->name,
2196 yesno(scrambling), high_tmds_clock_ratio ? 40 : 10);
2198 /* Set TMDS bit clock ratio to 1/40 or 1/10, and enable/disable scrambling */
2199 return drm_scdc_set_high_tmds_clock_ratio(adapter,
2200 high_tmds_clock_ratio) &&
2201 drm_scdc_set_scrambling(adapter, scrambling);
2204 static u8 chv_port_to_ddc_pin(struct drm_i915_private *dev_priv, enum port port)
2210 ddc_pin = GMBUS_PIN_DPB;
2213 ddc_pin = GMBUS_PIN_DPC;
2216 ddc_pin = GMBUS_PIN_DPD_CHV;
2220 ddc_pin = GMBUS_PIN_DPB;
2226 static u8 bxt_port_to_ddc_pin(struct drm_i915_private *dev_priv, enum port port)
2232 ddc_pin = GMBUS_PIN_1_BXT;
2235 ddc_pin = GMBUS_PIN_2_BXT;
2239 ddc_pin = GMBUS_PIN_1_BXT;
2245 static u8 cnp_port_to_ddc_pin(struct drm_i915_private *dev_priv,
2252 ddc_pin = GMBUS_PIN_1_BXT;
2255 ddc_pin = GMBUS_PIN_2_BXT;
2258 ddc_pin = GMBUS_PIN_4_CNP;
2261 ddc_pin = GMBUS_PIN_3_BXT;
2265 ddc_pin = GMBUS_PIN_1_BXT;
2271 static u8 icl_port_to_ddc_pin(struct drm_i915_private *dev_priv, enum port port)
2277 ddc_pin = GMBUS_PIN_1_BXT;
2280 ddc_pin = GMBUS_PIN_2_BXT;
2283 ddc_pin = GMBUS_PIN_9_TC1_ICP;
2286 ddc_pin = GMBUS_PIN_10_TC2_ICP;
2289 ddc_pin = GMBUS_PIN_11_TC3_ICP;
2292 ddc_pin = GMBUS_PIN_12_TC4_ICP;
2296 ddc_pin = GMBUS_PIN_2_BXT;
2302 static u8 g4x_port_to_ddc_pin(struct drm_i915_private *dev_priv,
2309 ddc_pin = GMBUS_PIN_DPB;
2312 ddc_pin = GMBUS_PIN_DPC;
2315 ddc_pin = GMBUS_PIN_DPD;
2319 ddc_pin = GMBUS_PIN_DPB;
2325 static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv,
2328 const struct ddi_vbt_port_info *info =
2329 &dev_priv->vbt.ddi_port_info[port];
2332 if (info->alternate_ddc_pin) {
2333 DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n",
2334 info->alternate_ddc_pin, port_name(port));
2335 return info->alternate_ddc_pin;
2338 if (IS_CHERRYVIEW(dev_priv))
2339 ddc_pin = chv_port_to_ddc_pin(dev_priv, port);
2340 else if (IS_GEN9_LP(dev_priv))
2341 ddc_pin = bxt_port_to_ddc_pin(dev_priv, port);
2342 else if (HAS_PCH_CNP(dev_priv))
2343 ddc_pin = cnp_port_to_ddc_pin(dev_priv, port);
2344 else if (HAS_PCH_ICP(dev_priv))
2345 ddc_pin = icl_port_to_ddc_pin(dev_priv, port);
2347 ddc_pin = g4x_port_to_ddc_pin(dev_priv, port);
2349 DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (platform default)\n",
2350 ddc_pin, port_name(port));
2355 void intel_infoframe_init(struct intel_digital_port *intel_dig_port)
2357 struct drm_i915_private *dev_priv =
2358 to_i915(intel_dig_port->base.base.dev);
2360 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
2361 intel_dig_port->write_infoframe = vlv_write_infoframe;
2362 intel_dig_port->set_infoframes = vlv_set_infoframes;
2363 intel_dig_port->infoframe_enabled = vlv_infoframe_enabled;
2364 } else if (IS_G4X(dev_priv)) {
2365 intel_dig_port->write_infoframe = g4x_write_infoframe;
2366 intel_dig_port->set_infoframes = g4x_set_infoframes;
2367 intel_dig_port->infoframe_enabled = g4x_infoframe_enabled;
2368 } else if (HAS_DDI(dev_priv)) {
2369 if (intel_dig_port->lspcon.active) {
2370 intel_dig_port->write_infoframe =
2371 lspcon_write_infoframe;
2372 intel_dig_port->set_infoframes = lspcon_set_infoframes;
2373 intel_dig_port->infoframe_enabled =
2374 lspcon_infoframe_enabled;
2376 intel_dig_port->set_infoframes = hsw_set_infoframes;
2377 intel_dig_port->infoframe_enabled =
2378 hsw_infoframe_enabled;
2379 intel_dig_port->write_infoframe = hsw_write_infoframe;
2381 } else if (HAS_PCH_IBX(dev_priv)) {
2382 intel_dig_port->write_infoframe = ibx_write_infoframe;
2383 intel_dig_port->set_infoframes = ibx_set_infoframes;
2384 intel_dig_port->infoframe_enabled = ibx_infoframe_enabled;
2386 intel_dig_port->write_infoframe = cpt_write_infoframe;
2387 intel_dig_port->set_infoframes = cpt_set_infoframes;
2388 intel_dig_port->infoframe_enabled = cpt_infoframe_enabled;
2392 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
2393 struct intel_connector *intel_connector)
2395 struct drm_connector *connector = &intel_connector->base;
2396 struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi;
2397 struct intel_encoder *intel_encoder = &intel_dig_port->base;
2398 struct drm_device *dev = intel_encoder->base.dev;
2399 struct drm_i915_private *dev_priv = to_i915(dev);
2400 enum port port = intel_encoder->port;
2402 DRM_DEBUG_KMS("Adding HDMI connector on port %c\n",
2405 if (WARN(intel_dig_port->max_lanes < 4,
2406 "Not enough lanes (%d) for HDMI on port %c\n",
2407 intel_dig_port->max_lanes, port_name(port)))
2410 drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
2411 DRM_MODE_CONNECTOR_HDMIA);
2412 drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
2414 connector->interlace_allowed = 1;
2415 connector->doublescan_allowed = 0;
2416 connector->stereo_allowed = 1;
2418 if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
2419 connector->ycbcr_420_allowed = true;
2421 intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);
2423 if (WARN_ON(port == PORT_A))
2425 intel_encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port);
2427 if (HAS_DDI(dev_priv))
2428 intel_connector->get_hw_state = intel_ddi_connector_get_hw_state;
2430 intel_connector->get_hw_state = intel_connector_get_hw_state;
2432 intel_hdmi_add_properties(intel_hdmi, connector);
2434 if (is_hdcp_supported(dev_priv, port)) {
2435 int ret = intel_hdcp_init(intel_connector,
2436 &intel_hdmi_hdcp_shim);
2438 DRM_DEBUG_KMS("HDCP init failed, skipping.\n");
2441 intel_connector_attach_encoder(intel_connector, intel_encoder);
2442 intel_hdmi->attached_connector = intel_connector;
2444 /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
2445 * 0xd. Failure to do so will result in spurious interrupts being
2446 * generated on the port when a cable is not attached.
2448 if (IS_G45(dev_priv)) {
2449 u32 temp = I915_READ(PEG_BAND_GAP_DATA);
2450 I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
2453 intel_hdmi->cec_notifier = cec_notifier_get_conn(dev->dev,
2454 port_identifier(port));
2455 if (!intel_hdmi->cec_notifier)
2456 DRM_DEBUG_KMS("CEC notifier get failed\n");
2459 void intel_hdmi_init(struct drm_i915_private *dev_priv,
2460 i915_reg_t hdmi_reg, enum port port)
2462 struct intel_digital_port *intel_dig_port;
2463 struct intel_encoder *intel_encoder;
2464 struct intel_connector *intel_connector;
2466 intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL);
2467 if (!intel_dig_port)
2470 intel_connector = intel_connector_alloc();
2471 if (!intel_connector) {
2472 kfree(intel_dig_port);
2476 intel_encoder = &intel_dig_port->base;
2478 drm_encoder_init(&dev_priv->drm, &intel_encoder->base,
2479 &intel_hdmi_enc_funcs, DRM_MODE_ENCODER_TMDS,
2480 "HDMI %c", port_name(port));
2482 intel_encoder->hotplug = intel_encoder_hotplug;
2483 intel_encoder->compute_config = intel_hdmi_compute_config;
2484 if (HAS_PCH_SPLIT(dev_priv)) {
2485 intel_encoder->disable = pch_disable_hdmi;
2486 intel_encoder->post_disable = pch_post_disable_hdmi;
2488 intel_encoder->disable = g4x_disable_hdmi;
2490 intel_encoder->get_hw_state = intel_hdmi_get_hw_state;
2491 intel_encoder->get_config = intel_hdmi_get_config;
2492 if (IS_CHERRYVIEW(dev_priv)) {
2493 intel_encoder->pre_pll_enable = chv_hdmi_pre_pll_enable;
2494 intel_encoder->pre_enable = chv_hdmi_pre_enable;
2495 intel_encoder->enable = vlv_enable_hdmi;
2496 intel_encoder->post_disable = chv_hdmi_post_disable;
2497 intel_encoder->post_pll_disable = chv_hdmi_post_pll_disable;
2498 } else if (IS_VALLEYVIEW(dev_priv)) {
2499 intel_encoder->pre_pll_enable = vlv_hdmi_pre_pll_enable;
2500 intel_encoder->pre_enable = vlv_hdmi_pre_enable;
2501 intel_encoder->enable = vlv_enable_hdmi;
2502 intel_encoder->post_disable = vlv_hdmi_post_disable;
2504 intel_encoder->pre_enable = intel_hdmi_pre_enable;
2505 if (HAS_PCH_CPT(dev_priv))
2506 intel_encoder->enable = cpt_enable_hdmi;
2507 else if (HAS_PCH_IBX(dev_priv))
2508 intel_encoder->enable = ibx_enable_hdmi;
2510 intel_encoder->enable = g4x_enable_hdmi;
2513 intel_encoder->type = INTEL_OUTPUT_HDMI;
2514 intel_encoder->power_domain = intel_port_to_power_domain(port);
2515 intel_encoder->port = port;
2516 if (IS_CHERRYVIEW(dev_priv)) {
2518 intel_encoder->crtc_mask = 1 << 2;
2520 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
2522 intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2524 intel_encoder->cloneable = 1 << INTEL_OUTPUT_ANALOG;
2526 * BSpec is unclear about HDMI+HDMI cloning on g4x, but it seems
2527 * to work on real hardware. And since g4x can send infoframes to
2528 * only one port anyway, nothing is lost by allowing it.
2530 if (IS_G4X(dev_priv))
2531 intel_encoder->cloneable |= 1 << INTEL_OUTPUT_HDMI;
2533 intel_dig_port->hdmi.hdmi_reg = hdmi_reg;
2534 intel_dig_port->dp.output_reg = INVALID_MMIO_REG;
2535 intel_dig_port->max_lanes = 4;
2537 intel_infoframe_init(intel_dig_port);
2539 intel_dig_port->aux_ch = intel_bios_port_aux_ch(dev_priv, port);
2540 intel_hdmi_init_connector(intel_dig_port, intel_connector);