| 0,0 → 1,561 |
|---|
| /* |
| * 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 "drmP.h" |
| #include "drm.h" |
| #include "drm_crtc.h" |
| #include "drm_edid.h" |
| #include "intel_drv.h" |
| #include "i915_drm.h" |
| #include "i915_drv.h" |
| |
| struct intel_hdmi { |
| struct intel_encoder base; |
| u32 sdvox_reg; |
| int ddc_bus; |
| uint32_t color_range; |
| bool has_hdmi_sink; |
| bool has_audio; |
| int force_audio; |
| void (*write_infoframe)(struct drm_encoder *encoder, |
| struct dip_infoframe *frame); |
| }; |
| |
| static struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder) |
| { |
| return container_of(encoder, struct intel_hdmi, base.base); |
| } |
| |
| static struct intel_hdmi *intel_attached_hdmi(struct drm_connector *connector) |
| { |
| return container_of(intel_attached_encoder(connector), |
| struct intel_hdmi, base); |
| } |
| |
| void intel_dip_infoframe_csum(struct dip_infoframe *frame) |
| { |
| uint8_t *data = (uint8_t *)frame; |
| uint8_t sum = 0; |
| unsigned i; |
| |
| frame->checksum = 0; |
| frame->ecc = 0; |
| |
| /* Header isn't part of the checksum */ |
| for (i = 5; i < frame->len; i++) |
| sum += data[i]; |
| |
| frame->checksum = 0x100 - sum; |
| } |
| |
| static u32 intel_infoframe_index(struct dip_infoframe *frame) |
| { |
| u32 flags = 0; |
| |
| switch (frame->type) { |
| case DIP_TYPE_AVI: |
| flags |= VIDEO_DIP_SELECT_AVI; |
| break; |
| case DIP_TYPE_SPD: |
| flags |= VIDEO_DIP_SELECT_SPD; |
| break; |
| default: |
| DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type); |
| break; |
| } |
| |
| return flags; |
| } |
| |
| static u32 intel_infoframe_flags(struct dip_infoframe *frame) |
| { |
| u32 flags = 0; |
| |
| switch (frame->type) { |
| case DIP_TYPE_AVI: |
| flags |= VIDEO_DIP_ENABLE_AVI | VIDEO_DIP_FREQ_VSYNC; |
| break; |
| case DIP_TYPE_SPD: |
| flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_2VSYNC; |
| break; |
| default: |
| DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type); |
| break; |
| } |
| |
| return flags; |
| } |
| |
| static void i9xx_write_infoframe(struct drm_encoder *encoder, |
| struct dip_infoframe *frame) |
| { |
| uint32_t *data = (uint32_t *)frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| u32 port, flags, val = I915_READ(VIDEO_DIP_CTL); |
| unsigned i, len = DIP_HEADER_SIZE + frame->len; |
| |
| |
| /* XXX first guess at handling video port, is this corrent? */ |
| if (intel_hdmi->sdvox_reg == SDVOB) |
| port = VIDEO_DIP_PORT_B; |
| else if (intel_hdmi->sdvox_reg == SDVOC) |
| port = VIDEO_DIP_PORT_C; |
| else |
| return; |
| |
| flags = intel_infoframe_index(frame); |
| |
| val &= ~VIDEO_DIP_SELECT_MASK; |
| |
| I915_WRITE(VIDEO_DIP_CTL, val | port | flags); |
| |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(VIDEO_DIP_DATA, *data); |
| data++; |
| } |
| |
| flags |= intel_infoframe_flags(frame); |
| |
| I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags); |
| } |
| |
| static void ironlake_write_infoframe(struct drm_encoder *encoder, |
| struct dip_infoframe *frame) |
| { |
| uint32_t *data = (uint32_t *)frame; |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct drm_crtc *crtc = encoder->crtc; |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| int reg = TVIDEO_DIP_CTL(intel_crtc->pipe); |
| unsigned i, len = DIP_HEADER_SIZE + frame->len; |
| u32 flags, val = I915_READ(reg); |
| |
| intel_wait_for_vblank(dev, intel_crtc->pipe); |
| |
| flags = intel_infoframe_index(frame); |
| |
| val &= ~VIDEO_DIP_SELECT_MASK; |
| |
| I915_WRITE(reg, val | flags); |
| |
| for (i = 0; i < len; i += 4) { |
| I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data); |
| data++; |
| } |
| |
| flags |= intel_infoframe_flags(frame); |
| |
| I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); |
| } |
| static void intel_set_infoframe(struct drm_encoder *encoder, |
| struct dip_infoframe *frame) |
| { |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| |
| if (!intel_hdmi->has_hdmi_sink) |
| return; |
| |
| intel_dip_infoframe_csum(frame); |
| intel_hdmi->write_infoframe(encoder, frame); |
| } |
| |
| static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder) |
| { |
| struct dip_infoframe avi_if = { |
| .type = DIP_TYPE_AVI, |
| .ver = DIP_VERSION_AVI, |
| .len = DIP_LEN_AVI, |
| }; |
| |
| intel_set_infoframe(encoder, &avi_if); |
| } |
| |
| static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder) |
| { |
| struct dip_infoframe spd_if; |
| |
| memset(&spd_if, 0, sizeof(spd_if)); |
| spd_if.type = DIP_TYPE_SPD; |
| spd_if.ver = DIP_VERSION_SPD; |
| spd_if.len = DIP_LEN_SPD; |
| strcpy(spd_if.body.spd.vn, "Intel"); |
| strcpy(spd_if.body.spd.pd, "Integrated gfx"); |
| spd_if.body.spd.sdi = DIP_SPD_PC; |
| |
| intel_set_infoframe(encoder, &spd_if); |
| } |
| |
| static void intel_hdmi_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct drm_crtc *crtc = encoder->crtc; |
| struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| u32 sdvox; |
| |
| sdvox = SDVO_ENCODING_HDMI | SDVO_BORDER_ENABLE; |
| if (!HAS_PCH_SPLIT(dev)) |
| sdvox |= intel_hdmi->color_range; |
| if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) |
| sdvox |= SDVO_VSYNC_ACTIVE_HIGH; |
| if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
| sdvox |= SDVO_HSYNC_ACTIVE_HIGH; |
| |
| if (intel_crtc->bpp > 24) |
| sdvox |= COLOR_FORMAT_12bpc; |
| else |
| sdvox |= COLOR_FORMAT_8bpc; |
| |
| /* Required on CPT */ |
| if (intel_hdmi->has_hdmi_sink && HAS_PCH_CPT(dev)) |
| sdvox |= HDMI_MODE_SELECT; |
| |
| if (intel_hdmi->has_audio) { |
| sdvox |= SDVO_AUDIO_ENABLE; |
| sdvox |= SDVO_NULL_PACKETS_DURING_VSYNC; |
| } |
| |
| if (intel_crtc->pipe == 1) { |
| if (HAS_PCH_CPT(dev)) |
| sdvox |= PORT_TRANS_B_SEL_CPT; |
| else |
| sdvox |= SDVO_PIPE_B_SELECT; |
| } |
| |
| I915_WRITE(intel_hdmi->sdvox_reg, sdvox); |
| POSTING_READ(intel_hdmi->sdvox_reg); |
| |
| intel_hdmi_set_avi_infoframe(encoder); |
| intel_hdmi_set_spd_infoframe(encoder); |
| } |
| |
| static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| u32 temp; |
| |
| temp = I915_READ(intel_hdmi->sdvox_reg); |
| |
| /* HW workaround, need to toggle enable bit off and on for 12bpc, but |
| * we do this anyway which shows more stable in testing. |
| */ |
| if (HAS_PCH_SPLIT(dev)) { |
| I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE); |
| POSTING_READ(intel_hdmi->sdvox_reg); |
| } |
| |
| if (mode != DRM_MODE_DPMS_ON) { |
| temp &= ~SDVO_ENABLE; |
| } else { |
| temp |= SDVO_ENABLE; |
| } |
| |
| I915_WRITE(intel_hdmi->sdvox_reg, temp); |
| POSTING_READ(intel_hdmi->sdvox_reg); |
| |
| /* HW workaround, need to write this twice for issue that may result |
| * in first write getting masked. |
| */ |
| if (HAS_PCH_SPLIT(dev)) { |
| I915_WRITE(intel_hdmi->sdvox_reg, temp); |
| POSTING_READ(intel_hdmi->sdvox_reg); |
| } |
| } |
| |
| static int intel_hdmi_mode_valid(struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| if (mode->clock > 165000) |
| return MODE_CLOCK_HIGH; |
| if (mode->clock < 20000) |
| return MODE_CLOCK_LOW; |
| |
| if (mode->flags & DRM_MODE_FLAG_DBLSCAN) |
| return MODE_NO_DBLESCAN; |
| |
| return MODE_OK; |
| } |
| |
| static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder, |
| struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| return true; |
| } |
| |
| static enum drm_connector_status |
| intel_hdmi_detect(struct drm_connector *connector, bool force) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| struct drm_i915_private *dev_priv = connector->dev->dev_private; |
| struct edid *edid; |
| enum drm_connector_status status = connector_status_disconnected; |
| |
| intel_hdmi->has_hdmi_sink = false; |
| intel_hdmi->has_audio = false; |
| edid = drm_get_edid(connector, |
| &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter); |
| |
| if (edid) { |
| if (edid->input & DRM_EDID_INPUT_DIGITAL) { |
| status = connector_status_connected; |
| intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid); |
| intel_hdmi->has_audio = drm_detect_monitor_audio(edid); |
| } |
| connector->display_info.raw_edid = NULL; |
| kfree(edid); |
| } |
| |
| if (status == connector_status_connected) { |
| if (intel_hdmi->force_audio) |
| intel_hdmi->has_audio = intel_hdmi->force_audio > 0; |
| } |
| |
| return status; |
| } |
| |
| static int intel_hdmi_get_modes(struct drm_connector *connector) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| struct drm_i915_private *dev_priv = connector->dev->dev_private; |
| |
| /* We should parse the EDID data and find out if it's an HDMI sink so |
| * we can send audio to it. |
| */ |
| |
| return intel_ddc_get_modes(connector, |
| &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter); |
| } |
| |
| static bool |
| intel_hdmi_detect_audio(struct drm_connector *connector) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| struct drm_i915_private *dev_priv = connector->dev->dev_private; |
| struct edid *edid; |
| bool has_audio = false; |
| |
| edid = drm_get_edid(connector, |
| &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter); |
| if (edid) { |
| if (edid->input & DRM_EDID_INPUT_DIGITAL) |
| has_audio = drm_detect_monitor_audio(edid); |
| |
| connector->display_info.raw_edid = NULL; |
| kfree(edid); |
| } |
| |
| return has_audio; |
| } |
| |
| static int |
| intel_hdmi_set_property(struct drm_connector *connector, |
| struct drm_property *property, |
| uint64_t val) |
| { |
| struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); |
| struct drm_i915_private *dev_priv = connector->dev->dev_private; |
| int ret; |
| |
| ret = drm_connector_property_set_value(connector, property, val); |
| if (ret) |
| return ret; |
| #if 0 |
| if (property == dev_priv->force_audio_property) { |
| int i = val; |
| bool has_audio; |
| |
| if (i == intel_hdmi->force_audio) |
| return 0; |
| |
| intel_hdmi->force_audio = i; |
| |
| if (i == 0) |
| has_audio = intel_hdmi_detect_audio(connector); |
| else |
| has_audio = i > 0; |
| |
| if (has_audio == intel_hdmi->has_audio) |
| return 0; |
| |
| intel_hdmi->has_audio = has_audio; |
| goto done; |
| } |
| |
| if (property == dev_priv->broadcast_rgb_property) { |
| if (val == !!intel_hdmi->color_range) |
| return 0; |
| |
| intel_hdmi->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0; |
| goto done; |
| } |
| #endif |
| return -EINVAL; |
| |
| done: |
| if (intel_hdmi->base.base.crtc) { |
| struct drm_crtc *crtc = intel_hdmi->base.base.crtc; |
| drm_crtc_helper_set_mode(crtc, &crtc->mode, |
| crtc->x, crtc->y, |
| crtc->fb); |
| } |
| |
| return 0; |
| } |
| |
| static void intel_hdmi_destroy(struct drm_connector *connector) |
| { |
| drm_sysfs_connector_remove(connector); |
| drm_connector_cleanup(connector); |
| kfree(connector); |
| } |
| |
| static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = { |
| .dpms = intel_hdmi_dpms, |
| .mode_fixup = intel_hdmi_mode_fixup, |
| .prepare = intel_encoder_prepare, |
| .mode_set = intel_hdmi_mode_set, |
| .commit = intel_encoder_commit, |
| }; |
| |
| static const struct drm_connector_funcs intel_hdmi_connector_funcs = { |
| .dpms = drm_helper_connector_dpms, |
| .detect = intel_hdmi_detect, |
| .fill_modes = drm_helper_probe_single_connector_modes, |
| .set_property = intel_hdmi_set_property, |
| .destroy = intel_hdmi_destroy, |
| }; |
| |
| static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = { |
| .get_modes = intel_hdmi_get_modes, |
| .mode_valid = intel_hdmi_mode_valid, |
| .best_encoder = intel_best_encoder, |
| }; |
| |
| 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); |
| } |
| |
| void intel_hdmi_init(struct drm_device *dev, int sdvox_reg) |
| { |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct drm_connector *connector; |
| struct intel_encoder *intel_encoder; |
| struct intel_connector *intel_connector; |
| struct intel_hdmi *intel_hdmi; |
| |
| intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL); |
| if (!intel_hdmi) |
| return; |
| |
| intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); |
| if (!intel_connector) { |
| kfree(intel_hdmi); |
| return; |
| } |
| |
| intel_encoder = &intel_hdmi->base; |
| drm_encoder_init(dev, &intel_encoder->base, &intel_hdmi_enc_funcs, |
| DRM_MODE_ENCODER_TMDS); |
| |
| connector = &intel_connector->base; |
| drm_connector_init(dev, connector, &intel_hdmi_connector_funcs, |
| DRM_MODE_CONNECTOR_HDMIA); |
| drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs); |
| |
| intel_encoder->type = INTEL_OUTPUT_HDMI; |
| |
| connector->polled = DRM_CONNECTOR_POLL_HPD; |
| connector->interlace_allowed = 0; |
| connector->doublescan_allowed = 0; |
| intel_encoder->crtc_mask = (1 << 0) | (1 << 1); |
| |
| /* Set up the DDC bus. */ |
| if (sdvox_reg == SDVOB) { |
| intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT); |
| intel_hdmi->ddc_bus = GMBUS_PORT_DPB; |
| dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS; |
| } else if (sdvox_reg == SDVOC) { |
| intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT); |
| intel_hdmi->ddc_bus = GMBUS_PORT_DPC; |
| dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS; |
| } else if (sdvox_reg == HDMIB) { |
| intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT); |
| intel_hdmi->ddc_bus = GMBUS_PORT_DPB; |
| dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS; |
| } else if (sdvox_reg == HDMIC) { |
| intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT); |
| intel_hdmi->ddc_bus = GMBUS_PORT_DPC; |
| dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS; |
| } else if (sdvox_reg == HDMID) { |
| intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT); |
| intel_hdmi->ddc_bus = GMBUS_PORT_DPD; |
| dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS; |
| } |
| |
| intel_hdmi->sdvox_reg = sdvox_reg; |
| |
| if (!HAS_PCH_SPLIT(dev)) |
| intel_hdmi->write_infoframe = i9xx_write_infoframe; |
| else |
| intel_hdmi->write_infoframe = ironlake_write_infoframe; |
| |
| drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs); |
| |
| intel_hdmi_add_properties(intel_hdmi, connector); |
| |
| intel_connector_attach_encoder(intel_connector, intel_encoder); |
| drm_sysfs_connector_add(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) && !IS_GM45(dev)) { |
| u32 temp = I915_READ(PEG_BAND_GAP_DATA); |
| I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); |
| } |
| } |