/* * Copyright 2006 Dave Airlie * 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 * Jesse Barnes */ #include #include #include #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; }; 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 *avi_if) { uint8_t *data = (uint8_t *)avi_if; uint8_t sum = 0; unsigned i; avi_if->checksum = 0; avi_if->ecc = 0; for (i = 0; i < sizeof(*avi_if); i++) sum += data[i]; avi_if->checksum = 0x100 - sum; } 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, }; uint32_t *data = (uint32_t *)&avi_if; 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; unsigned i; if (!intel_hdmi->has_hdmi_sink) return; /* 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; I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | port | VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC); intel_dip_infoframe_csum(&avi_if); for (i = 0; i < sizeof(avi_if); i += 4) { I915_WRITE(VIDEO_DIP_DATA, *data); data++; } I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | port | VIDEO_DIP_SELECT_AVI | VIDEO_DIP_FREQ_VSYNC | VIDEO_DIP_ENABLE_AVI); } 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; 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; /* 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); } 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; u32 enable_bits = SDVO_ENABLE; if (intel_hdmi->has_audio || mode != DRM_MODE_DPMS_ON) enable_bits |= SDVO_AUDIO_ENABLE; 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 &= ~enable_bits; } else { temp |= enable_bits; } 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 (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; } 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; 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); } }