| /* |
| * Copyright 2006 Dave Airlie <airlied@linux.ie> |
| * Copyright © 2006-2009 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: |
| * Eric Anholt <eric@anholt.net> |
| * Jesse Barnes <jesse.barnes@intel.com> |
| */ |
| |
| #include <linux/i2c.h> |
| #include <linux/slab.h> |
| #include <linux/delay.h> |
| #include <linux/hdmi.h> |
| #include <drm/drmP.h> |
| #include <drm/drm_atomic_helper.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_edid.h> |
| #include <drm/drm_scdc_helper.h> |
| #include "intel_drv.h" |
| #include <drm/i915_drm.h> |
| #include <drm/intel_lpe_audio.h> |
| #include "i915_drv.h" |
| |
| static struct drm_device *intel_hdmi_to_dev(struct intel_hdmi *intel_hdmi) |
| { |
| return hdmi_to_dig_port(intel_hdmi)->base.base.dev; |
| } |
| |
| static void |
| assert_hdmi_port_disabled(struct intel_hdmi *intel_hdmi) |
| { |
| struct drm_device *dev = intel_hdmi_to_dev(intel_hdmi); |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| uint32_t enabled_bits; |
| |
| enabled_bits = HAS_DDI(dev_priv) ? DDI_BUF_CTL_ENABLE : SDVO_ENABLE; |
| |
| WARN(I915_READ(intel_hdmi->hdmi_reg) & enabled_bits, |
| "HDMI port enabled, expecting disabled\n"); |
| } |
| |
| struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder) |
| { |
| struct intel_digital_port *intel_dig_port = |
| container_of(encoder, struct intel_digital_port, base.base); |
| return &intel_dig_port->hdmi; |
| } |
| |
| static struct intel_hdmi *intel_attached_hdmi(struct drm_connector *connector) |
| { |
| return enc_to_intel_hdmi(&intel_attached_encoder(connector)->base); |
| } |
| |
| static u32 g4x_infoframe_index(enum hdmi_infoframe_type type) |
| { |
| switch (type) { |
| case HDMI_INFOFRAME_TYPE_AVI: |
| return VIDEO_DIP_SELECT_AVI; |
| case HDMI_INFOFRAME_TYPE_SPD: |
| return VIDEO_DIP_SELECT_SPD; |
| case HDMI_INFOFRAME_TYPE_VENDOR: |
| return VIDEO_DIP_SELECT_VENDOR; |
| default: |
| MISSING_CASE(type); |
| return 0; |
| } |
| } |
| |
| static u32 g4x_infoframe_enable(enum hdmi_infoframe_type type) |
| { |
| switch (type) { |
| case HDMI_INFOFRAME_TYPE_AVI: |
| return VIDEO_DIP_ENABLE_AVI; |
| case HDMI_INFOFRAME_TYPE_SPD: |
| return VIDEO_DIP_ENABLE_SPD; |
| case HDMI_INFOFRAME_TYPE_VENDOR: |
| return VIDEO_DIP_ENABLE_VENDOR; |
| default: |
| MISSING_CASE(type); |
| return 0; |
| } |
| } |
| |
| static u32 hsw_infoframe_enable(enum hdmi_infoframe_type type) |
| { |
| switch (type) { |
| case HDMI_INFOFRAME_TYPE_AVI: |
| return VIDEO_DIP_ENABLE_AVI_HSW; |
| case HDMI_INFOFRAME_TYPE_SPD: |
| return VIDEO_DIP_ENABLE_SPD_HSW; |
| case HDMI_INFOFRAME_TYPE_VENDOR: |
| return VIDEO_DIP_ENABLE_VS_HSW; |
| default: |
| MISSING_CASE(type); |
| return 0; |
| } |
| } |
| |
| static i915_reg_t |
| hsw_dip_data_reg(struct drm_i915_private *dev_priv, |
| enum transcoder cpu_transcoder, |
| enum hdmi_infoframe_type type, |
| int i) |
| { |
| switch (type) { |
| case HDMI_INFOFRAME_TYPE_AVI: |
| return HSW_TVIDEO_DIP_AVI_DATA(cpu_transcoder, i); |
| case HDMI_INFOFRAME_TYPE_SPD: |
| return HSW_TVIDEO_DIP_SPD_DATA(cpu_transcoder, i); |
| case HDMI_INFOFRAME_TYPE_VENDOR: |
| return HSW_TVIDEO_DIP_VS_DATA(cpu_transcoder, i); |
| default: |
| MISSING_CASE(type); |
| return INVALID_MMIO_REG; |
| } |
| } |
| |
| static void g4x_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| enum hdmi_infoframe_type type, |
| const void *frame, ssize_t len) |
| { |
| const uint32_t *data = frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| u32 val = I915_READ(VIDEO_DIP_CTL); |
| int i; |
| |
| WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n"); |
| |
| val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ |
| val |= g4x_infoframe_index(type); |
| |
| val &= ~g4x_infoframe_enable(type); |
| |
| I915_WRITE(VIDEO_DIP_CTL, val); |
| |
| mmiowb(); |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(VIDEO_DIP_DATA, *data); |
| data++; |
| } |
| /* Write every possible data byte to force correct ECC calculation. */ |
| for (; i < VIDEO_DIP_DATA_SIZE; i += 4) |
| I915_WRITE(VIDEO_DIP_DATA, 0); |
| mmiowb(); |
| |
| val |= g4x_infoframe_enable(type); |
| val &= ~VIDEO_DIP_FREQ_MASK; |
| val |= VIDEO_DIP_FREQ_VSYNC; |
| |
| I915_WRITE(VIDEO_DIP_CTL, val); |
| POSTING_READ(VIDEO_DIP_CTL); |
| } |
| |
| static bool g4x_infoframe_enabled(struct drm_encoder *encoder, |
| const struct intel_crtc_state *pipe_config) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| u32 val = I915_READ(VIDEO_DIP_CTL); |
| |
| if ((val & VIDEO_DIP_ENABLE) == 0) |
| return false; |
| |
| if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(intel_dig_port->port)) |
| return false; |
| |
| return val & (VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD); |
| } |
| |
| static void ibx_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| enum hdmi_infoframe_type type, |
| const void *frame, ssize_t len) |
| { |
| const uint32_t *data = frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| int i; |
| |
| WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n"); |
| |
| val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ |
| val |= g4x_infoframe_index(type); |
| |
| val &= ~g4x_infoframe_enable(type); |
| |
| I915_WRITE(reg, val); |
| |
| mmiowb(); |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data); |
| data++; |
| } |
| /* Write every possible data byte to force correct ECC calculation. */ |
| for (; i < VIDEO_DIP_DATA_SIZE; i += 4) |
| I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), 0); |
| mmiowb(); |
| |
| val |= g4x_infoframe_enable(type); |
| val &= ~VIDEO_DIP_FREQ_MASK; |
| val |= VIDEO_DIP_FREQ_VSYNC; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| } |
| |
| static bool ibx_infoframe_enabled(struct drm_encoder *encoder, |
| const struct intel_crtc_state *pipe_config) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe; |
| i915_reg_t reg = TVIDEO_DIP_CTL(pipe); |
| u32 val = I915_READ(reg); |
| |
| if ((val & VIDEO_DIP_ENABLE) == 0) |
| return false; |
| |
| if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(intel_dig_port->port)) |
| return false; |
| |
| return val & (VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| } |
| |
| static void cpt_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| enum hdmi_infoframe_type type, |
| const void *frame, ssize_t len) |
| { |
| const uint32_t *data = frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| int i; |
| |
| WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n"); |
| |
| val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ |
| val |= g4x_infoframe_index(type); |
| |
| /* The DIP control register spec says that we need to update the AVI |
| * infoframe without clearing its enable bit */ |
| if (type != HDMI_INFOFRAME_TYPE_AVI) |
| val &= ~g4x_infoframe_enable(type); |
| |
| I915_WRITE(reg, val); |
| |
| mmiowb(); |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data); |
| data++; |
| } |
| /* Write every possible data byte to force correct ECC calculation. */ |
| for (; i < VIDEO_DIP_DATA_SIZE; i += 4) |
| I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), 0); |
| mmiowb(); |
| |
| val |= g4x_infoframe_enable(type); |
| val &= ~VIDEO_DIP_FREQ_MASK; |
| val |= VIDEO_DIP_FREQ_VSYNC; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| } |
| |
| static bool cpt_infoframe_enabled(struct drm_encoder *encoder, |
| const struct intel_crtc_state *pipe_config) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe; |
| u32 val = I915_READ(TVIDEO_DIP_CTL(pipe)); |
| |
| if ((val & VIDEO_DIP_ENABLE) == 0) |
| return false; |
| |
| return val & (VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| } |
| |
| static void vlv_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| enum hdmi_infoframe_type type, |
| const void *frame, ssize_t len) |
| { |
| const uint32_t *data = frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| i915_reg_t reg = VLV_TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| int i; |
| |
| WARN(!(val & VIDEO_DIP_ENABLE), "Writing DIP with CTL reg disabled\n"); |
| |
| val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ |
| val |= g4x_infoframe_index(type); |
| |
| val &= ~g4x_infoframe_enable(type); |
| |
| I915_WRITE(reg, val); |
| |
| mmiowb(); |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc->pipe), *data); |
| data++; |
| } |
| /* Write every possible data byte to force correct ECC calculation. */ |
| for (; i < VIDEO_DIP_DATA_SIZE; i += 4) |
| I915_WRITE(VLV_TVIDEO_DIP_DATA(intel_crtc->pipe), 0); |
| mmiowb(); |
| |
| val |= g4x_infoframe_enable(type); |
| val &= ~VIDEO_DIP_FREQ_MASK; |
| val |= VIDEO_DIP_FREQ_VSYNC; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| } |
| |
| static bool vlv_infoframe_enabled(struct drm_encoder *encoder, |
| const struct intel_crtc_state *pipe_config) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| enum pipe pipe = to_intel_crtc(pipe_config->base.crtc)->pipe; |
| u32 val = I915_READ(VLV_TVIDEO_DIP_CTL(pipe)); |
| |
| if ((val & VIDEO_DIP_ENABLE) == 0) |
| return false; |
| |
| if ((val & VIDEO_DIP_PORT_MASK) != VIDEO_DIP_PORT(intel_dig_port->port)) |
| return false; |
| |
| return val & (VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| } |
| |
| static void hsw_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| enum hdmi_infoframe_type type, |
| const void *frame, ssize_t len) |
| { |
| const uint32_t *data = frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; |
| i915_reg_t ctl_reg = HSW_TVIDEO_DIP_CTL(cpu_transcoder); |
| i915_reg_t data_reg; |
| int i; |
| u32 val = I915_READ(ctl_reg); |
| |
| data_reg = hsw_dip_data_reg(dev_priv, cpu_transcoder, type, 0); |
| |
| val &= ~hsw_infoframe_enable(type); |
| I915_WRITE(ctl_reg, val); |
| |
| mmiowb(); |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder, |
| type, i >> 2), *data); |
| data++; |
| } |
| /* Write every possible data byte to force correct ECC calculation. */ |
| for (; i < VIDEO_DIP_DATA_SIZE; i += 4) |
| I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder, |
| type, i >> 2), 0); |
| mmiowb(); |
| |
| val |= hsw_infoframe_enable(type); |
| I915_WRITE(ctl_reg, val); |
| POSTING_READ(ctl_reg); |
| } |
| |
| static bool hsw_infoframe_enabled(struct drm_encoder *encoder, |
| const struct intel_crtc_state *pipe_config) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| u32 val = I915_READ(HSW_TVIDEO_DIP_CTL(pipe_config->cpu_transcoder)); |
| |
| return val & (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW | |
| VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | |
| VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW); |
| } |
| |
| /* |
| * The data we write to the DIP data buffer registers is 1 byte bigger than the |
| * HDMI infoframe size because of an ECC/reserved byte at position 3 (starting |
| * at 0). It's also a byte used by DisplayPort so the same DIP registers can be |
| * used for both technologies. |
| * |
| * DW0: Reserved/ECC/DP | HB2 | HB1 | HB0 |
| * DW1: DB3 | DB2 | DB1 | DB0 |
| * DW2: DB7 | DB6 | DB5 | DB4 |
| * DW3: ... |
| * |
| * (HB is Header Byte, DB is Data Byte) |
| * |
| * The hdmi pack() functions don't know about that hardware specific hole so we |
| * trick them by giving an offset into the buffer and moving back the header |
| * bytes by one. |
| */ |
| static void intel_write_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| union hdmi_infoframe *frame) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| uint8_t buffer[VIDEO_DIP_DATA_SIZE]; |
| ssize_t len; |
| |
| /* see comment above for the reason for this offset */ |
| len = hdmi_infoframe_pack(frame, buffer + 1, sizeof(buffer) - 1); |
| if (len < 0) |
| return; |
| |
| /* Insert the 'hole' (see big comment above) at position 3 */ |
| buffer[0] = buffer[1]; |
| buffer[1] = buffer[2]; |
| buffer[2] = buffer[3]; |
| buffer[3] = 0; |
| len++; |
| |
| intel_hdmi->write_infoframe(encoder, crtc_state, frame->any.type, buffer, len); |
| } |
| |
| static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| const struct drm_display_mode *adjusted_mode = |
| &crtc_state->base.adjusted_mode; |
| struct drm_connector *connector = &intel_hdmi->attached_connector->base; |
| bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported; |
| union hdmi_infoframe frame; |
| int ret; |
| |
| ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, |
| adjusted_mode, |
| is_hdmi2_sink); |
| if (ret < 0) { |
| DRM_ERROR("couldn't fill AVI infoframe\n"); |
| return; |
| } |
| |
| drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode, |
| crtc_state->limited_color_range ? |
| HDMI_QUANTIZATION_RANGE_LIMITED : |
| HDMI_QUANTIZATION_RANGE_FULL, |
| intel_hdmi->rgb_quant_range_selectable); |
| |
| intel_write_infoframe(encoder, crtc_state, &frame); |
| } |
| |
| static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state) |
| { |
| union hdmi_infoframe frame; |
| int ret; |
| |
| ret = hdmi_spd_infoframe_init(&frame.spd, "Intel", "Integrated gfx"); |
| if (ret < 0) { |
| DRM_ERROR("couldn't fill SPD infoframe\n"); |
| return; |
| } |
| |
| frame.spd.sdi = HDMI_SPD_SDI_PC; |
| |
| intel_write_infoframe(encoder, crtc_state, &frame); |
| } |
| |
| static void |
| intel_hdmi_set_hdmi_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state) |
| { |
| union hdmi_infoframe frame; |
| int ret; |
| |
| ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi, |
| &crtc_state->base.adjusted_mode); |
| if (ret < 0) |
| return; |
| |
| intel_write_infoframe(encoder, crtc_state, &frame); |
| } |
| |
| static void g4x_set_infoframes(struct drm_encoder *encoder, |
| bool enable, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi; |
| i915_reg_t reg = VIDEO_DIP_CTL; |
| u32 val = I915_READ(reg); |
| u32 port = VIDEO_DIP_PORT(intel_dig_port->port); |
| |
| assert_hdmi_port_disabled(intel_hdmi); |
| |
| /* If the registers were not initialized yet, they might be zeroes, |
| * which means we're selecting the AVI DIP and we're setting its |
| * frequency to once. This seems to really confuse the HW and make |
| * things stop working (the register spec says the AVI always needs to |
| * be sent every VSync). So here we avoid writing to the register more |
| * than we need and also explicitly select the AVI DIP and explicitly |
| * set its frequency to every VSync. Avoiding to write it twice seems to |
| * be enough to solve the problem, but being defensive shouldn't hurt us |
| * either. */ |
| val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC; |
| |
| if (!enable) { |
| if (!(val & VIDEO_DIP_ENABLE)) |
| return; |
| if (port != (val & VIDEO_DIP_PORT_MASK)) { |
| DRM_DEBUG_KMS("video DIP still enabled on port %c\n", |
| (val & VIDEO_DIP_PORT_MASK) >> 29); |
| return; |
| } |
| val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD); |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| return; |
| } |
| |
| if (port != (val & VIDEO_DIP_PORT_MASK)) { |
| if (val & VIDEO_DIP_ENABLE) { |
| DRM_DEBUG_KMS("video DIP already enabled on port %c\n", |
| (val & VIDEO_DIP_PORT_MASK) >> 29); |
| return; |
| } |
| val &= ~VIDEO_DIP_PORT_MASK; |
| val |= port; |
| } |
| |
| val |= VIDEO_DIP_ENABLE; |
| val &= ~(VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_SPD); |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder, crtc_state); |
| intel_hdmi_set_spd_infoframe(encoder, crtc_state); |
| intel_hdmi_set_hdmi_infoframe(encoder, crtc_state); |
| } |
| |
| static bool hdmi_sink_is_deep_color(const struct drm_connector_state *conn_state) |
| { |
| struct drm_connector *connector = conn_state->connector; |
| |
| /* |
| * HDMI cloning is only supported on g4x which doesn't |
| * support deep color or GCP infoframes anyway so no |
| * need to worry about multiple HDMI sinks here. |
| */ |
| |
| return connector->display_info.bpc > 8; |
| } |
| |
| /* |
| * Determine if default_phase=1 can be indicated in the GCP infoframe. |
| * |
| * From HDMI specification 1.4a: |
| * - The first pixel of each Video Data Period shall always have a pixel packing phase of 0 |
| * - The first pixel following each Video Data Period shall have a pixel packing phase of 0 |
| * - The PP bits shall be constant for all GCPs and will be equal to the last packing phase |
| * - The first pixel following every transition of HSYNC or VSYNC shall have a pixel packing |
| * phase of 0 |
| */ |
| static bool gcp_default_phase_possible(int pipe_bpp, |
| const struct drm_display_mode *mode) |
| { |
| unsigned int pixels_per_group; |
| |
| switch (pipe_bpp) { |
| case 30: |
| /* 4 pixels in 5 clocks */ |
| pixels_per_group = 4; |
| break; |
| case 36: |
| /* 2 pixels in 3 clocks */ |
| pixels_per_group = 2; |
| break; |
| case 48: |
| /* 1 pixel in 2 clocks */ |
| pixels_per_group = 1; |
| break; |
| default: |
| /* phase information not relevant for 8bpc */ |
| return false; |
| } |
| |
| return mode->crtc_hdisplay % pixels_per_group == 0 && |
| mode->crtc_htotal % pixels_per_group == 0 && |
| mode->crtc_hblank_start % pixels_per_group == 0 && |
| mode->crtc_hblank_end % pixels_per_group == 0 && |
| mode->crtc_hsync_start % pixels_per_group == 0 && |
| mode->crtc_hsync_end % pixels_per_group == 0 && |
| ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0 || |
| mode->crtc_htotal/2 % pixels_per_group == 0); |
| } |
| |
| static bool intel_hdmi_set_gcp_infoframe(struct drm_encoder *encoder, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
| i915_reg_t reg; |
| u32 val = 0; |
| |
| if (HAS_DDI(dev_priv)) |
| reg = HSW_TVIDEO_DIP_GCP(crtc_state->cpu_transcoder); |
| else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) |
| reg = VLV_TVIDEO_DIP_GCP(crtc->pipe); |
| else if (HAS_PCH_SPLIT(dev_priv)) |
| reg = TVIDEO_DIP_GCP(crtc->pipe); |
| else |
| return false; |
| |
| /* Indicate color depth whenever the sink supports deep color */ |
| if (hdmi_sink_is_deep_color(conn_state)) |
| val |= GCP_COLOR_INDICATION; |
| |
| /* Enable default_phase whenever the display mode is suitably aligned */ |
| if (gcp_default_phase_possible(crtc_state->pipe_bpp, |
| &crtc_state->base.adjusted_mode)) |
| val |= GCP_DEFAULT_PHASE_ENABLE; |
| |
| I915_WRITE(reg, val); |
| |
| return val != 0; |
| } |
| |
| static void ibx_set_infoframes(struct drm_encoder *encoder, |
| bool enable, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi; |
| i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| u32 port = VIDEO_DIP_PORT(intel_dig_port->port); |
| |
| assert_hdmi_port_disabled(intel_hdmi); |
| |
| /* See the big comment in g4x_set_infoframes() */ |
| val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC; |
| |
| if (!enable) { |
| if (!(val & VIDEO_DIP_ENABLE)) |
| return; |
| val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| return; |
| } |
| |
| if (port != (val & VIDEO_DIP_PORT_MASK)) { |
| WARN(val & VIDEO_DIP_ENABLE, |
| "DIP already enabled on port %c\n", |
| (val & VIDEO_DIP_PORT_MASK) >> 29); |
| val &= ~VIDEO_DIP_PORT_MASK; |
| val |= port; |
| } |
| |
| val |= VIDEO_DIP_ENABLE; |
| val &= ~(VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| |
| if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state)) |
| val |= VIDEO_DIP_ENABLE_GCP; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder, crtc_state); |
| intel_hdmi_set_spd_infoframe(encoder, crtc_state); |
| intel_hdmi_set_hdmi_infoframe(encoder, crtc_state); |
| } |
| |
| static void cpt_set_infoframes(struct drm_encoder *encoder, |
| bool enable, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| i915_reg_t reg = TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| |
| assert_hdmi_port_disabled(intel_hdmi); |
| |
| /* See the big comment in g4x_set_infoframes() */ |
| val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC; |
| |
| if (!enable) { |
| if (!(val & VIDEO_DIP_ENABLE)) |
| return; |
| val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| return; |
| } |
| |
| /* Set both together, unset both together: see the spec. */ |
| val |= VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI; |
| val &= ~(VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| |
| if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state)) |
| val |= VIDEO_DIP_ENABLE_GCP; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder, crtc_state); |
| intel_hdmi_set_spd_infoframe(encoder, crtc_state); |
| intel_hdmi_set_hdmi_infoframe(encoder, crtc_state); |
| } |
| |
| static void vlv_set_infoframes(struct drm_encoder *encoder, |
| bool enable, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| i915_reg_t reg = VLV_TVIDEO_DIP_CTL(intel_crtc->pipe); |
| u32 val = I915_READ(reg); |
| u32 port = VIDEO_DIP_PORT(intel_dig_port->port); |
| |
| assert_hdmi_port_disabled(intel_hdmi); |
| |
| /* See the big comment in g4x_set_infoframes() */ |
| val |= VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC; |
| |
| if (!enable) { |
| if (!(val & VIDEO_DIP_ENABLE)) |
| return; |
| val &= ~(VIDEO_DIP_ENABLE | VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| return; |
| } |
| |
| if (port != (val & VIDEO_DIP_PORT_MASK)) { |
| WARN(val & VIDEO_DIP_ENABLE, |
| "DIP already enabled on port %c\n", |
| (val & VIDEO_DIP_PORT_MASK) >> 29); |
| val &= ~VIDEO_DIP_PORT_MASK; |
| val |= port; |
| } |
| |
| val |= VIDEO_DIP_ENABLE; |
| val &= ~(VIDEO_DIP_ENABLE_AVI | |
| VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | |
| VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_ENABLE_GCP); |
| |
| if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state)) |
| val |= VIDEO_DIP_ENABLE_GCP; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder, crtc_state); |
| intel_hdmi_set_spd_infoframe(encoder, crtc_state); |
| intel_hdmi_set_hdmi_infoframe(encoder, crtc_state); |
| } |
| |
| static void hsw_set_infoframes(struct drm_encoder *encoder, |
| bool enable, |
| const struct intel_crtc_state *crtc_state, |
| const struct drm_connector_state *conn_state) |
| { |
| struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| i915_reg_t reg = HSW_TVIDEO_DIP_CTL(crtc_state->cpu_transcoder); |
| u32 val = I915_READ(reg); |
| |
| assert_hdmi_port_disabled(intel_hdmi); |
| |
| val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW | |
| VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | |
| VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW); |
| |
| if (!enable) { |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| return; |
| } |
| |
| if (intel_hdmi_set_gcp_infoframe(encoder, crtc_state, conn_state)) |
| val |= VIDEO_DIP_ENABLE_GCP_HSW; |
| |
| I915_WRITE(reg, val); |
| POSTING_READ(reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder, crtc_state); |
| intel_hdmi_set_spd_infoframe(encoder, crtc_state); |
| intel_hdmi_set_hdmi_infoframe(encoder, crtc_state); |
| } |
| |
| void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable) |
| { |
| struct drm_i915_private *dev_priv = to_i915(intel_hdmi_to_dev(hdmi)); |
| struct i2c_adapter *adapter = |
| intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus); |
| |
| if (hdmi->dp_dual_mode.type < DRM_DP_DUAL_MODE_TYPE2_DVI) |
| return; |
| |
| DRM_DEBUG_KMS("%s DP dual mode adaptor TMDS output\n", |
| enable ? "Enabling" : "Disabling"); |
| |
| drm_dp_dual_mode_set_tmds_output(hdmi->dp_dual_mode.type, |
| adapter, enable); |
| } |
| |
| static void intel_hdmi_prepare(struct intel_encoder *encoder, |
| const struct intel_crtc_state *crtc_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode; |
| u32 hdmi_val; |
| |
| intel_dp_dual_mode_set_tmds_output(intel_hdmi, true); |
| |
| hdmi_val = SDVO_ENCODING_HDMI; |
| if (!HAS_PCH_SPLIT(dev_priv) && crtc_state->limited_color_range) |
| hdmi_val |= HDMI_COLOR_RANGE_16_235; |
| if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) |
| hdmi_val |= SDVO_VSYNC_ACTIVE_HIGH; |
| if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
| hdmi_val |= SDVO_HSYNC_ACTIVE_HIGH; |
| |
| if (crtc_state->pipe_bpp > 24) |
| hdmi_val |= HDMI_COLOR_FORMAT_12bpc; |
| else |
| hdmi_val |= SDVO_COLOR_FORMAT_8bpc; |
| |
| if (crtc_state->has_hdmi_sink) |
| hdmi_val |= HDMI_MODE_SELECT_HDMI; |
| |
| if (HAS_PCH_CPT(dev_priv)) |
| hdmi_val |= SDVO_PIPE_SEL_CPT(crtc->pipe); |
| else if (IS_CHERRYVIEW(dev_priv)) |
| hdmi_val |= SDVO_PIPE_SEL_CHV(crtc->pipe); |
| else |
| hdmi_val |= SDVO_PIPE_SEL(crtc->pipe); |
| |
| I915_WRITE(intel_hdmi->hdmi_reg, hdmi_val); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| } |
| |
| static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder, |
| enum pipe *pipe) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| u32 tmp; |
| bool ret; |
| |
| if (!intel_display_power_get_if_enabled(dev_priv, |
| encoder->power_domain)) |
| return false; |
| |
| ret = false; |
| |
| tmp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| if (!(tmp & SDVO_ENABLE)) |
| goto out; |
| |
| if (HAS_PCH_CPT(dev_priv)) |
| *pipe = PORT_TO_PIPE_CPT(tmp); |
| else if (IS_CHERRYVIEW(dev_priv)) |
| *pipe = SDVO_PORT_TO_PIPE_CHV(tmp); |
| else |
| *pipe = PORT_TO_PIPE(tmp); |
| |
| ret = true; |
| |
| out: |
| intel_display_power_put(dev_priv, encoder->power_domain); |
| |
| return ret; |
| } |
| |
| static void intel_hdmi_get_config(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| u32 tmp, flags = 0; |
| int dotclock; |
| |
| tmp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| if (tmp & SDVO_HSYNC_ACTIVE_HIGH) |
| flags |= DRM_MODE_FLAG_PHSYNC; |
| else |
| flags |= DRM_MODE_FLAG_NHSYNC; |
| |
| if (tmp & SDVO_VSYNC_ACTIVE_HIGH) |
| flags |= DRM_MODE_FLAG_PVSYNC; |
| else |
| flags |= DRM_MODE_FLAG_NVSYNC; |
| |
| if (tmp & HDMI_MODE_SELECT_HDMI) |
| pipe_config->has_hdmi_sink = true; |
| |
| if (intel_hdmi->infoframe_enabled(&encoder->base, pipe_config)) |
| pipe_config->has_infoframe = true; |
| |
| if (tmp & SDVO_AUDIO_ENABLE) |
| pipe_config->has_audio = true; |
| |
| if (!HAS_PCH_SPLIT(dev_priv) && |
| tmp & HDMI_COLOR_RANGE_16_235) |
| pipe_config->limited_color_range = true; |
| |
| pipe_config->base.adjusted_mode.flags |= flags; |
| |
| if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc) |
| dotclock = pipe_config->port_clock * 2 / 3; |
| else |
| dotclock = pipe_config->port_clock; |
| |
| if (pipe_config->pixel_multiplier) |
| dotclock /= pipe_config->pixel_multiplier; |
| |
| pipe_config->base.adjusted_mode.crtc_clock = dotclock; |
| |
| pipe_config->lane_count = 4; |
| } |
| |
| static void intel_enable_hdmi_audio(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc); |
| |
| WARN_ON(!pipe_config->has_hdmi_sink); |
| DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n", |
| pipe_name(crtc->pipe)); |
| intel_audio_codec_enable(encoder, pipe_config, conn_state); |
| } |
| |
| static void g4x_enable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| u32 temp; |
| |
| temp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| temp |= SDVO_ENABLE; |
| if (pipe_config->has_audio) |
| temp |= SDVO_AUDIO_ENABLE; |
| |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| if (pipe_config->has_audio) |
| intel_enable_hdmi_audio(encoder, pipe_config, conn_state); |
| } |
| |
| static void ibx_enable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| u32 temp; |
| |
| temp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| temp |= SDVO_ENABLE; |
| if (pipe_config->has_audio) |
| temp |= SDVO_AUDIO_ENABLE; |
| |
| /* |
| * HW workaround, need to write this twice for issue |
| * that may result in first write getting masked. |
| */ |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| /* |
| * HW workaround, need to toggle enable bit off and on |
| * for 12bpc with pixel repeat. |
| * |
| * FIXME: BSpec says this should be done at the end of |
| * of the modeset sequence, so not sure if this isn't too soon. |
| */ |
| if (pipe_config->pipe_bpp > 24 && |
| pipe_config->pixel_multiplier > 1) { |
| I915_WRITE(intel_hdmi->hdmi_reg, temp & ~SDVO_ENABLE); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| /* |
| * HW workaround, need to write this twice for issue |
| * that may result in first write getting masked. |
| */ |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| } |
| |
| if (pipe_config->has_audio) |
| intel_enable_hdmi_audio(encoder, pipe_config, conn_state); |
| } |
| |
| static void cpt_enable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| enum pipe pipe = crtc->pipe; |
| u32 temp; |
| |
| temp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| temp |= SDVO_ENABLE; |
| if (pipe_config->has_audio) |
| temp |= SDVO_AUDIO_ENABLE; |
| |
| /* |
| * WaEnableHDMI8bpcBefore12bpc:snb,ivb |
| * |
| * The procedure for 12bpc is as follows: |
| * 1. disable HDMI clock gating |
| * 2. enable HDMI with 8bpc |
| * 3. enable HDMI with 12bpc |
| * 4. enable HDMI clock gating |
| */ |
| |
| if (pipe_config->pipe_bpp > 24) { |
| I915_WRITE(TRANS_CHICKEN1(pipe), |
| I915_READ(TRANS_CHICKEN1(pipe)) | |
| TRANS_CHICKEN1_HDMIUNIT_GC_DISABLE); |
| |
| temp &= ~SDVO_COLOR_FORMAT_MASK; |
| temp |= SDVO_COLOR_FORMAT_8bpc; |
| } |
| |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| if (pipe_config->pipe_bpp > 24) { |
| temp &= ~SDVO_COLOR_FORMAT_MASK; |
| temp |= HDMI_COLOR_FORMAT_12bpc; |
| |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| I915_WRITE(TRANS_CHICKEN1(pipe), |
| I915_READ(TRANS_CHICKEN1(pipe)) & |
| ~TRANS_CHICKEN1_HDMIUNIT_GC_DISABLE); |
| } |
| |
| if (pipe_config->has_audio) |
| intel_enable_hdmi_audio(encoder, pipe_config, conn_state); |
| } |
| |
| static void vlv_enable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| } |
| |
| static void intel_disable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc); |
| u32 temp; |
| |
| temp = I915_READ(intel_hdmi->hdmi_reg); |
| |
| temp &= ~(SDVO_ENABLE | SDVO_AUDIO_ENABLE); |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| /* |
| * HW workaround for IBX, we need to move the port |
| * to transcoder A after disabling it to allow the |
| * matching DP port to be enabled on transcoder A. |
| */ |
| if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) { |
| /* |
| * We get CPU/PCH FIFO underruns on the other pipe when |
| * doing the workaround. Sweep them under the rug. |
| */ |
| intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); |
| intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); |
| |
| temp &= ~SDVO_PIPE_B_SELECT; |
| temp |= SDVO_ENABLE; |
| /* |
| * HW workaround, need to write this twice for issue |
| * that may result in first write getting masked. |
| */ |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| temp &= ~SDVO_ENABLE; |
| I915_WRITE(intel_hdmi->hdmi_reg, temp); |
| POSTING_READ(intel_hdmi->hdmi_reg); |
| |
| intel_wait_for_vblank_if_active(dev_priv, PIPE_A); |
| intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true); |
| intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true); |
| } |
| |
| intel_hdmi->set_infoframes(&encoder->base, false, old_crtc_state, old_conn_state); |
| |
| intel_dp_dual_mode_set_tmds_output(intel_hdmi, false); |
| } |
| |
| static void g4x_disable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| if (old_crtc_state->has_audio) |
| intel_audio_codec_disable(encoder); |
| |
| intel_disable_hdmi(encoder, old_crtc_state, old_conn_state); |
| } |
| |
| static void pch_disable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| if (old_crtc_state->has_audio) |
| intel_audio_codec_disable(encoder); |
| } |
| |
| static void pch_post_disable_hdmi(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| intel_disable_hdmi(encoder, old_crtc_state, old_conn_state); |
| } |
| |
| static int intel_hdmi_source_max_tmds_clock(struct drm_i915_private *dev_priv) |
| { |
| if (IS_G4X(dev_priv)) |
| return 165000; |
| else if (IS_GEMINILAKE(dev_priv)) |
| return 594000; |
| else if (IS_HASWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 8) |
| return 300000; |
| else |
| return 225000; |
| } |
| |
| static int hdmi_port_clock_limit(struct intel_hdmi *hdmi, |
| bool respect_downstream_limits, |
| bool force_dvi) |
| { |
| struct drm_device *dev = intel_hdmi_to_dev(hdmi); |
| int max_tmds_clock = intel_hdmi_source_max_tmds_clock(to_i915(dev)); |
| |
| if (respect_downstream_limits) { |
| struct intel_connector *connector = hdmi->attached_connector; |
| const struct drm_display_info *info = &connector->base.display_info; |
| |
| if (hdmi->dp_dual_mode.max_tmds_clock) |
| max_tmds_clock = min(max_tmds_clock, |
| hdmi->dp_dual_mode.max_tmds_clock); |
| |
| if (info->max_tmds_clock) |
| max_tmds_clock = min(max_tmds_clock, |
| info->max_tmds_clock); |
| else if (!hdmi->has_hdmi_sink || force_dvi) |
| max_tmds_clock = min(max_tmds_clock, 165000); |
| } |
| |
| return max_tmds_clock; |
| } |
| |
| static enum drm_mode_status |
| hdmi_port_clock_valid(struct intel_hdmi *hdmi, |
| int clock, bool respect_downstream_limits, |
| bool force_dvi) |
| { |
| struct drm_i915_private *dev_priv = to_i915(intel_hdmi_to_dev(hdmi)); |
| |
| if (clock < 25000) |
| return MODE_CLOCK_LOW; |
| if (clock > hdmi_port_clock_limit(hdmi, respect_downstream_limits, force_dvi)) |
| return MODE_CLOCK_HIGH; |
| |
| /* BXT DPLL can't generate 223-240 MHz */ |
| if (IS_GEN9_LP(dev_priv) && clock > 223333 && clock < 240000) |
| return MODE_CLOCK_RANGE; |
| |
| /* CHV DPLL can't generate 216-240 MHz */ |
| if (IS_CHERRYVIEW(dev_priv) && clock > 216000 && clock < 240000) |
| return MODE_CLOCK_RANGE; |
| |
| return MODE_OK; |
| } |
| |
| static enum drm_mode_status |
| intel_hdmi_mode_valid(struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| struct intel_hdmi *hdmi = intel_attached_hdmi(connector); |
| struct drm_device *dev = intel_hdmi_to_dev(hdmi); |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| enum drm_mode_status status; |
| int clock; |
| int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; |
| bool force_dvi = |
| READ_ONCE(to_intel_digital_connector_state(connector->state)->force_audio) == HDMI_AUDIO_OFF_DVI; |
| |
| if (mode->flags & DRM_MODE_FLAG_DBLSCAN) |
| return MODE_NO_DBLESCAN; |
| |
| clock = mode->clock; |
| |
| if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) |
| clock *= 2; |
| |
| if (clock > max_dotclk) |
| return MODE_CLOCK_HIGH; |
| |
| if (mode->flags & DRM_MODE_FLAG_DBLCLK) |
| clock *= 2; |
| |
| /* check if we can do 8bpc */ |
| status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi); |
| |
| /* if we can't do 8bpc we may still be able to do 12bpc */ |
| if (!HAS_GMCH_DISPLAY(dev_priv) && status != MODE_OK && hdmi->has_hdmi_sink && !force_dvi) |
| status = hdmi_port_clock_valid(hdmi, clock * 3 / 2, true, force_dvi); |
| |
| return status; |
| } |
| |
| static bool hdmi_12bpc_possible(struct intel_crtc_state *crtc_state) |
| { |
| struct drm_i915_private *dev_priv = |
| to_i915(crtc_state->base.crtc->dev); |
| struct drm_atomic_state *state = crtc_state->base.state; |
| struct drm_connector_state *connector_state; |
| struct drm_connector *connector; |
| int i; |
| |
| if (HAS_GMCH_DISPLAY(dev_priv)) |
| return false; |
| |
| /* |
| * HDMI 12bpc affects the clocks, so it's only possible |
| * when not cloning with other encoder types. |
| */ |
| if (crtc_state->output_types != 1 << INTEL_OUTPUT_HDMI) |
| return false; |
| |
| for_each_new_connector_in_state(state, connector, connector_state, i) { |
| const struct drm_display_info *info = &connector->display_info; |
| |
| if (connector_state->crtc != crtc_state->base.crtc) |
| continue; |
| |
| if ((info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36) == 0) |
| return false; |
| } |
| |
| /* Display Wa #1139 */ |
| if (IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) && |
| crtc_state->base.adjusted_mode.htotal > 5460) |
| return false; |
| |
| return true; |
| } |
| |
| bool intel_hdmi_compute_config(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
| struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
| struct drm_scdc *scdc = &conn_state->connector->display_info.hdmi.scdc; |
| struct intel_digital_connector_state *intel_conn_state = |
| to_intel_digital_connector_state(conn_state); |
| int clock_8bpc = pipe_config->base.adjusted_mode.crtc_clock; |
| int clock_12bpc = clock_8bpc * 3 / 2; |
| int desired_bpp; |
| bool force_dvi = intel_conn_state->force_audio == HDMI_AUDIO_OFF_DVI; |
| |
| pipe_config->has_hdmi_sink = !force_dvi && intel_hdmi->has_hdmi_sink; |
| |
| if (pipe_config->has_hdmi_sink) |
| pipe_config->has_infoframe = true; |
| |
| if (intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_AUTO) { |
| /* See CEA-861-E - 5.1 Default Encoding Parameters */ |
| pipe_config->limited_color_range = |
| pipe_config->has_hdmi_sink && |
| drm_default_rgb_quant_range(adjusted_mode) == |
| HDMI_QUANTIZATION_RANGE_LIMITED; |
| } else { |
| pipe_config->limited_color_range = |
| intel_conn_state->broadcast_rgb == INTEL_BROADCAST_RGB_LIMITED; |
| } |
| |
| if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) { |
| pipe_config->pixel_multiplier = 2; |
| clock_8bpc *= 2; |
| clock_12bpc *= 2; |
| } |
| |
| if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv)) |
| pipe_config->has_pch_encoder = true; |
| |
| if (pipe_config->has_hdmi_sink) { |
| if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO) |
| pipe_config->has_audio = intel_hdmi->has_audio; |
| else |
| pipe_config->has_audio = |
| intel_conn_state->force_audio == HDMI_AUDIO_ON; |
| } |
| |
| /* |
| * HDMI is either 12 or 8, so if the display lets 10bpc sneak |
| * through, clamp it down. Note that g4x/vlv don't support 12bpc hdmi |
| * outputs. We also need to check that the higher clock still fits |
| * within limits. |
| */ |
| if (pipe_config->pipe_bpp > 8*3 && pipe_config->has_hdmi_sink && !force_dvi && |
| hdmi_port_clock_valid(intel_hdmi, clock_12bpc, true, force_dvi) == MODE_OK && |
| hdmi_12bpc_possible(pipe_config)) { |
| DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n"); |
| desired_bpp = 12*3; |
| |
| /* Need to adjust the port link by 1.5x for 12bpc. */ |
| pipe_config->port_clock = clock_12bpc; |
| } else { |
| DRM_DEBUG_KMS("picking bpc to 8 for HDMI output\n"); |
| desired_bpp = 8*3; |
| |
| pipe_config->port_clock = clock_8bpc; |
| } |
| |
| if (!pipe_config->bw_constrained) { |
| DRM_DEBUG_KMS("forcing pipe bpp to %i for HDMI\n", desired_bpp); |
| pipe_config->pipe_bpp = desired_bpp; |
| } |
| |
| if (hdmi_port_clock_valid(intel_hdmi, pipe_config->port_clock, |
| false, force_dvi) != MODE_OK) { |
| DRM_DEBUG_KMS("unsupported HDMI clock, rejecting mode\n"); |
| return false; |
| } |
| |
| /* Set user selected PAR to incoming mode's member */ |
| adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio; |
| |
| pipe_config->lane_count = 4; |
| |
| if (scdc->scrambling.supported && IS_GEMINILAKE(dev_priv)) { |
| if (scdc->scrambling.low_rates) |
| pipe_config->hdmi_scrambling = true; |
| |
| if (pipe_config->port_clock > 340000) { |
| pipe_config->hdmi_scrambling = true; |
| pipe_config->hdmi_high_tmds_clock_ratio = true; |
| } |
| } |
| |
| return true; |
| } |
| |
| static void |
| intel_hdmi_unset_edid(struct drm_connector *connector) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| |
| intel_hdmi->has_hdmi_sink = false; |
| intel_hdmi->has_audio = false; |
| intel_hdmi->rgb_quant_range_selectable = false; |
| |
| intel_hdmi->dp_dual_mode.type = DRM_DP_DUAL_MODE_NONE; |
| intel_hdmi->dp_dual_mode.max_tmds_clock = 0; |
| |
| kfree(to_intel_connector(connector)->detect_edid); |
| to_intel_connector(connector)->detect_edid = NULL; |
| } |
| |
| static void |
| intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid) |
| { |
| struct drm_i915_private *dev_priv = to_i915(connector->dev); |
| struct intel_hdmi *hdmi = intel_attached_hdmi(connector); |
| enum port port = hdmi_to_dig_port(hdmi)->port; |
| struct i2c_adapter *adapter = |
| intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus); |
| enum drm_dp_dual_mode_type type = drm_dp_dual_mode_detect(adapter); |
| |
| /* |
| * Type 1 DVI adaptors are not required to implement any |
| * registers, so we can't always detect their presence. |
| * Ideally we should be able to check the state of the |
| * CONFIG1 pin, but no such luck on our hardware. |
| * |
| * The only method left to us is to check the VBT to see |
| * if the port is a dual mode capable DP port. But let's |
| * only do that when we sucesfully read the EDID, to avoid |
| * confusing log messages about DP dual mode adaptors when |
| * there's nothing connected to the port. |
| */ |
| if (type == DRM_DP_DUAL_MODE_UNKNOWN) { |
| if (has_edid && |
| intel_bios_is_port_dp_dual_mode(dev_priv, port)) { |
| DRM_DEBUG_KMS("Assuming DP dual mode adaptor presence based on VBT\n"); |
| type = DRM_DP_DUAL_MODE_TYPE1_DVI; |
| } else { |
| type = DRM_DP_DUAL_MODE_NONE; |
| } |
| } |
| |
| if (type == DRM_DP_DUAL_MODE_NONE) |
| return; |
| |
| hdmi->dp_dual_mode.type = type; |
| hdmi->dp_dual_mode.max_tmds_clock = |
| drm_dp_dual_mode_max_tmds_clock(type, adapter); |
| |
| DRM_DEBUG_KMS("DP dual mode adaptor (%s) detected (max TMDS clock: %d kHz)\n", |
| drm_dp_get_dual_mode_type_name(type), |
| hdmi->dp_dual_mode.max_tmds_clock); |
| } |
| |
| static bool |
| intel_hdmi_set_edid(struct drm_connector *connector) |
| { |
| struct drm_i915_private *dev_priv = to_i915(connector->dev); |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| struct edid *edid; |
| bool connected = false; |
| |
| intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS); |
| |
| edid = drm_get_edid(connector, |
| intel_gmbus_get_adapter(dev_priv, |
| intel_hdmi->ddc_bus)); |
| |
| intel_hdmi_dp_dual_mode_detect(connector, edid != NULL); |
| |
| intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS); |
| |
| to_intel_connector(connector)->detect_edid = edid; |
| if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) { |
| intel_hdmi->rgb_quant_range_selectable = |
| drm_rgb_quant_range_selectable(edid); |
| |
| intel_hdmi->has_audio = drm_detect_monitor_audio(edid); |
| intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid); |
| |
| connected = true; |
| } |
| |
| return connected; |
| } |
| |
| static enum drm_connector_status |
| intel_hdmi_detect(struct drm_connector *connector, bool force) |
| { |
| enum drm_connector_status status; |
| struct drm_i915_private *dev_priv = to_i915(connector->dev); |
| |
| DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
| connector->base.id, connector->name); |
| |
| intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS); |
| |
| intel_hdmi_unset_edid(connector); |
| |
| if (intel_hdmi_set_edid(connector)) { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| |
| hdmi_to_dig_port(intel_hdmi)->base.type = INTEL_OUTPUT_HDMI; |
| status = connector_status_connected; |
| } else |
| status = connector_status_disconnected; |
| |
| intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS); |
| |
| return status; |
| } |
| |
| static void |
| intel_hdmi_force(struct drm_connector *connector) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| |
| DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
| connector->base.id, connector->name); |
| |
| intel_hdmi_unset_edid(connector); |
| |
| if (connector->status != connector_status_connected) |
| return; |
| |
| intel_hdmi_set_edid(connector); |
| hdmi_to_dig_port(intel_hdmi)->base.type = INTEL_OUTPUT_HDMI; |
| } |
| |
| static int intel_hdmi_get_modes(struct drm_connector *connector) |
| { |
| struct edid *edid; |
| |
| edid = to_intel_connector(connector)->detect_edid; |
| if (edid == NULL) |
| return 0; |
| |
| return intel_connector_update_modes(connector, edid); |
| } |
| |
| static void intel_hdmi_pre_enable(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| |
| intel_hdmi_prepare(encoder, pipe_config); |
| |
| intel_hdmi->set_infoframes(&encoder->base, |
| pipe_config->has_hdmi_sink, |
| pipe_config, conn_state); |
| } |
| |
| static void vlv_hdmi_pre_enable(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct intel_digital_port *dport = enc_to_dig_port(&encoder->base); |
| struct intel_hdmi *intel_hdmi = &dport->hdmi; |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| |
| vlv_phy_pre_encoder_enable(encoder); |
| |
| /* HDMI 1.0V-2dB */ |
| vlv_set_phy_signal_level(encoder, 0x2b245f5f, 0x00002000, 0x5578b83a, |
| 0x2b247878); |
| |
| intel_hdmi->set_infoframes(&encoder->base, |
| pipe_config->has_hdmi_sink, |
| pipe_config, conn_state); |
| |
| g4x_enable_hdmi(encoder, pipe_config, conn_state); |
| |
| vlv_wait_port_ready(dev_priv, dport, 0x0); |
| } |
| |
| static void vlv_hdmi_pre_pll_enable(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| intel_hdmi_prepare(encoder, pipe_config); |
| |
| vlv_phy_pre_pll_enable(encoder); |
| } |
| |
| static void chv_hdmi_pre_pll_enable(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| intel_hdmi_prepare(encoder, pipe_config); |
| |
| chv_phy_pre_pll_enable(encoder); |
| } |
| |
| static void chv_hdmi_post_pll_disable(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| chv_phy_post_pll_disable(encoder); |
| } |
| |
| static void vlv_hdmi_post_disable(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| /* Reset lanes to avoid HDMI flicker (VLV w/a) */ |
| vlv_phy_reset_lanes(encoder); |
| } |
| |
| static void chv_hdmi_post_disable(struct intel_encoder *encoder, |
| struct intel_crtc_state *old_crtc_state, |
| struct drm_connector_state *old_conn_state) |
| { |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| |
| mutex_lock(&dev_priv->sb_lock); |
| |
| /* Assert data lane reset */ |
| chv_data_lane_soft_reset(encoder, true); |
| |
| mutex_unlock(&dev_priv->sb_lock); |
| } |
| |
| static void chv_hdmi_pre_enable(struct intel_encoder *encoder, |
| struct intel_crtc_state *pipe_config, |
| struct drm_connector_state *conn_state) |
| { |
| struct intel_digital_port *dport = enc_to_dig_port(&encoder->base); |
| struct intel_hdmi *intel_hdmi = &dport->hdmi; |
| struct drm_device *dev = encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| |
| chv_phy_pre_encoder_enable(encoder); |
| |
| /* FIXME: Program the support xxx V-dB */ |
| /* Use 800mV-0dB */ |
| chv_set_phy_signal_level(encoder, 128, 102, false); |
| |
| intel_hdmi->set_infoframes(&encoder->base, |
| pipe_config->has_hdmi_sink, |
| pipe_config, conn_state); |
| |
| g4x_enable_hdmi(encoder, pipe_config, conn_state); |
| |
| vlv_wait_port_ready(dev_priv, dport, 0x0); |
| |
| /* Second common lane will stay alive on its own now */ |
| chv_phy_release_cl2_override(encoder); |
| } |
| |
| static void intel_hdmi_destroy(struct drm_connector *connector) |
| { |
| kfree(to_intel_connector(connector)->detect_edid); |
| drm_connector_cleanup(connector); |
| kfree(connector); |
| } |
| |
| static const struct drm_connector_funcs intel_hdmi_connector_funcs = { |
| .dpms = drm_atomic_helper_connector_dpms, |
| .detect = intel_hdmi_detect, |
| .force = intel_hdmi_force, |
| .fill_modes = drm_helper_probe_single_connector_modes, |
| .set_property = drm_atomic_helper_connector_set_property, |
| .atomic_get_property = intel_digital_connector_atomic_get_property, |
| .atomic_set_property = intel_digital_connector_atomic_set_property, |
| .late_register = intel_connector_register, |
| .early_unregister = intel_connector_unregister, |
| .destroy = intel_hdmi_destroy, |
| .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, |
| .atomic_duplicate_state = intel_digital_connector_duplicate_state, |
| }; |
| |
| static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = { |
| .get_modes = intel_hdmi_get_modes, |
| .mode_valid = intel_hdmi_mode_valid, |
| .atomic_check = intel_digital_connector_atomic_check, |
| }; |
| |
| static const struct drm_encoder_funcs intel_hdmi_enc_funcs = { |
| .destroy = intel_encoder_destroy, |
| }; |
| |
| static void |
| intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *connector) |
| { |
| intel_attach_force_audio_property(connector); |
| intel_attach_broadcast_rgb_property(connector); |
| intel_attach_aspect_ratio_property(connector); |
| connector->state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE; |
| } |
| |
| /* |
| * intel_hdmi_handle_sink_scrambling: handle sink scrambling/clock ratio setup |
| * @encoder: intel_encoder |
| * @connector: drm_connector |
| * @high_tmds_clock_ratio = bool to indicate if the function needs to set |
| * or reset the high tmds clock ratio for scrambling |
| * @scrambling: bool to Indicate if the function needs to set or reset |
| * sink scrambling |
| * |
| * This function handles scrambling on HDMI 2.0 capable sinks. |
| * If required clock rate is > 340 Mhz && scrambling is supported by sink |
| * it enables scrambling. This should be called before enabling the HDMI |
| * 2.0 port, as the sink can choose to disable the scrambling if it doesn't |
| * detect a scrambled clock within 100 ms. |
| */ |
| void intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder, |
| struct drm_connector *connector, |
| bool high_tmds_clock_ratio, |
| bool scrambling) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
| struct drm_i915_private *dev_priv = connector->dev->dev_private; |
| struct drm_scrambling *sink_scrambling = |
| &connector->display_info.hdmi.scdc.scrambling; |
| struct i2c_adapter *adptr = intel_gmbus_get_adapter(dev_priv, |
| intel_hdmi->ddc_bus); |
| bool ret; |
| |
| if (!sink_scrambling->supported) |
| return; |
| |
| DRM_DEBUG_KMS("Setting sink scrambling for enc:%s connector:%s\n", |
| encoder->base.name, connector->name); |
| |
| /* Set TMDS bit clock ratio to 1/40 or 1/10 */ |
| ret = drm_scdc_set_high_tmds_clock_ratio(adptr, high_tmds_clock_ratio); |
| if (!ret) { |
| DRM_ERROR("Set TMDS ratio failed\n"); |
| return; |
| } |
| |
| /* Enable/disable sink scrambling */ |
| ret = drm_scdc_set_scrambling(adptr, scrambling); |
| if (!ret) { |
| DRM_ERROR("Set sink scrambling failed\n"); |
| return; |
| } |
| |
| DRM_DEBUG_KMS("sink scrambling handled\n"); |
| } |
| |
| static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv, |
| enum port port) |
| { |
| const struct ddi_vbt_port_info *info = |
| &dev_priv->vbt.ddi_port_info[port]; |
| u8 ddc_pin; |
| |
| if (info->alternate_ddc_pin) { |
| DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n", |
| info->alternate_ddc_pin, port_name(port)); |
| return info->alternate_ddc_pin; |
| } |
| |
| switch (port) { |
| case PORT_B: |
| if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv)) |
| ddc_pin = GMBUS_PIN_1_BXT; |
| else |
| ddc_pin = GMBUS_PIN_DPB; |
| break; |
| case PORT_C: |
| if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv)) |
| ddc_pin = GMBUS_PIN_2_BXT; |
| else |
| ddc_pin = GMBUS_PIN_DPC; |
| break; |
| case PORT_D: |
| if (HAS_PCH_CNP(dev_priv)) |
| ddc_pin = GMBUS_PIN_4_CNP; |
| else if (IS_CHERRYVIEW(dev_priv)) |
| ddc_pin = GMBUS_PIN_DPD_CHV; |
| else |
| ddc_pin = GMBUS_PIN_DPD; |
| break; |
| default: |
| MISSING_CASE(port); |
| ddc_pin = GMBUS_PIN_DPB; |
| break; |
| } |
| |
| DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (platform default)\n", |
| ddc_pin, port_name(port)); |
| |
| return ddc_pin; |
| } |
| |
| void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, |
| struct intel_connector *intel_connector) |
| { |
| struct drm_connector *connector = &intel_connector->base; |
| struct intel_hdmi *intel_hdmi = &intel_dig_port->hdmi; |
| struct intel_encoder *intel_encoder = &intel_dig_port->base; |
| struct drm_device *dev = intel_encoder->base.dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| enum port port = intel_dig_port->port; |
| |
| DRM_DEBUG_KMS("Adding HDMI connector on port %c\n", |
| port_name(port)); |
| |
| if (WARN(intel_dig_port->max_lanes < 4, |
| "Not enough lanes (%d) for HDMI on port %c\n", |
| intel_dig_port->max_lanes, port_name(port))) |
| return; |
| |
| drm_connector_init(dev, connector, &intel_hdmi_connector_funcs, |
| DRM_MODE_CONNECTOR_HDMIA); |
| drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs); |
| |
| connector->interlace_allowed = 1; |
| connector->doublescan_allowed = 0; |
| connector->stereo_allowed = 1; |
| |
| intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port); |
| |
| switch (port) { |
| case PORT_B: |
| intel_encoder->hpd_pin = HPD_PORT_B; |
| break; |
| case PORT_C: |
| intel_encoder->hpd_pin = HPD_PORT_C; |
| break; |
| case PORT_D: |
| intel_encoder->hpd_pin = HPD_PORT_D; |
| break; |
| case PORT_E: |
| intel_encoder->hpd_pin = HPD_PORT_E; |
| break; |
| default: |
| MISSING_CASE(port); |
| return; |
| } |
| |
| if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { |
| intel_hdmi->write_infoframe = vlv_write_infoframe; |
| intel_hdmi->set_infoframes = vlv_set_infoframes; |
| intel_hdmi->infoframe_enabled = vlv_infoframe_enabled; |
| } else if (IS_G4X(dev_priv)) { |
| intel_hdmi->write_infoframe = g4x_write_infoframe; |
| intel_hdmi->set_infoframes = g4x_set_infoframes; |
| intel_hdmi->infoframe_enabled = g4x_infoframe_enabled; |
| } else if (HAS_DDI(dev_priv)) { |
| intel_hdmi->write_infoframe = hsw_write_infoframe; |
| intel_hdmi->set_infoframes = hsw_set_infoframes; |
| intel_hdmi->infoframe_enabled = hsw_infoframe_enabled; |
| } else if (HAS_PCH_IBX(dev_priv)) { |
| intel_hdmi->write_infoframe = ibx_write_infoframe; |
| intel_hdmi->set_infoframes = ibx_set_infoframes; |
| intel_hdmi->infoframe_enabled = ibx_infoframe_enabled; |
| } else { |
| intel_hdmi->write_infoframe = cpt_write_infoframe; |
| intel_hdmi->set_infoframes = cpt_set_infoframes; |
| intel_hdmi->infoframe_enabled = cpt_infoframe_enabled; |
| } |
| |
| if (HAS_DDI(dev_priv)) |
| intel_connector->get_hw_state = intel_ddi_connector_get_hw_state; |
| else |
| intel_connector->get_hw_state = intel_connector_get_hw_state; |
| |
| intel_hdmi_add_properties(intel_hdmi, connector); |
| |
| intel_connector_attach_encoder(intel_connector, intel_encoder); |
| intel_hdmi->attached_connector = intel_connector; |
| |
| /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written |
| * 0xd. Failure to do so will result in spurious interrupts being |
| * generated on the port when a cable is not attached. |
| */ |
| if (IS_G4X(dev_priv) && !IS_GM45(dev_priv)) { |
| u32 temp = I915_READ(PEG_BAND_GAP_DATA); |
| I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); |
| } |
| } |
| |
| void intel_hdmi_init(struct drm_i915_private *dev_priv, |
| i915_reg_t hdmi_reg, enum port port) |
| { |
| struct intel_digital_port *intel_dig_port; |
| struct intel_encoder *intel_encoder; |
| struct intel_connector *intel_connector; |
| |
| intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); |
| if (!intel_dig_port) |
| return; |
| |
| intel_connector = intel_connector_alloc(); |
| if (!intel_connector) { |
| kfree(intel_dig_port); |
| return; |
| } |
| |
| intel_encoder = &intel_dig_port->base; |
| |
| drm_encoder_init(&dev_priv->drm, &intel_encoder->base, |
| &intel_hdmi_enc_funcs, DRM_MODE_ENCODER_TMDS, |
| "HDMI %c", port_name(port)); |
| |
| intel_encoder->compute_config = intel_hdmi_compute_config; |
| if (HAS_PCH_SPLIT(dev_priv)) { |
| intel_encoder->disable = pch_disable_hdmi; |
| intel_encoder->post_disable = pch_post_disable_hdmi; |
| } else { |
| intel_encoder->disable = g4x_disable_hdmi; |
| } |
| intel_encoder->get_hw_state = intel_hdmi_get_hw_state; |
| intel_encoder->get_config = intel_hdmi_get_config; |
| if (IS_CHERRYVIEW(dev_priv)) { |
| intel_encoder->pre_pll_enable = chv_hdmi_pre_pll_enable; |
| intel_encoder->pre_enable = chv_hdmi_pre_enable; |
| intel_encoder->enable = vlv_enable_hdmi; |
| intel_encoder->post_disable = chv_hdmi_post_disable; |
| intel_encoder->post_pll_disable = chv_hdmi_post_pll_disable; |
| } else if (IS_VALLEYVIEW(dev_priv)) { |
| intel_encoder->pre_pll_enable = vlv_hdmi_pre_pll_enable; |
| intel_encoder->pre_enable = vlv_hdmi_pre_enable; |
| intel_encoder->enable = vlv_enable_hdmi; |
| intel_encoder->post_disable = vlv_hdmi_post_disable; |
| } else { |
| intel_encoder->pre_enable = intel_hdmi_pre_enable; |
| if (HAS_PCH_CPT(dev_priv)) |
| intel_encoder->enable = cpt_enable_hdmi; |
| else if (HAS_PCH_IBX(dev_priv)) |
| intel_encoder->enable = ibx_enable_hdmi; |
| else |
| intel_encoder->enable = g4x_enable_hdmi; |
| } |
| |
| intel_encoder->type = INTEL_OUTPUT_HDMI; |
| intel_encoder->power_domain = intel_port_to_power_domain(port); |
| intel_encoder->port = port; |
| if (IS_CHERRYVIEW(dev_priv)) { |
| if (port == PORT_D) |
| intel_encoder->crtc_mask = 1 << 2; |
| else |
| intel_encoder->crtc_mask = (1 << 0) | (1 << 1); |
| } else { |
| intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
| } |
| intel_encoder->cloneable = 1 << INTEL_OUTPUT_ANALOG; |
| /* |
| * BSpec is unclear about HDMI+HDMI cloning on g4x, but it seems |
| * to work on real hardware. And since g4x can send infoframes to |
| * only one port anyway, nothing is lost by allowing it. |
| */ |
| if (IS_G4X(dev_priv)) |
| intel_encoder->cloneable |= 1 << INTEL_OUTPUT_HDMI; |
| |
| intel_dig_port->port = port; |
| intel_dig_port->hdmi.hdmi_reg = hdmi_reg; |
| intel_dig_port->dp.output_reg = INVALID_MMIO_REG; |
| intel_dig_port->max_lanes = 4; |
| |
| intel_hdmi_init_connector(intel_dig_port, intel_connector); |
| } |