/* * 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 #include #include #include #include #include "intel_drv.h" #include #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, 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, 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(encoder->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, 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(encoder->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, 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(encoder->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, 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(encoder->crtc); enum transcoder cpu_transcoder = intel_crtc->config->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, 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, frame->any.type, buffer, len); } static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder, const struct drm_display_mode *adjusted_mode) { struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); union hdmi_infoframe frame; int ret; ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, adjusted_mode); if (ret < 0) { DRM_ERROR("couldn't fill AVI infoframe\n"); return; } if (intel_hdmi->rgb_quant_range_selectable) { if (intel_crtc->config->limited_color_range) frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED; else frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_FULL; } intel_write_infoframe(encoder, &frame); } static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder) { 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, &frame); } static void intel_hdmi_set_hdmi_infoframe(struct drm_encoder *encoder, const struct drm_display_mode *adjusted_mode) { union hdmi_infoframe frame; int ret; ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi, adjusted_mode); if (ret < 0) return; intel_write_infoframe(encoder, &frame); } static void g4x_set_infoframes(struct drm_encoder *encoder, bool enable, const struct drm_display_mode *adjusted_mode) { 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, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } static bool hdmi_sink_is_deep_color(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; struct drm_connector *connector; WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); /* * 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. */ list_for_each_entry(connector, &dev->mode_config.connector_list, head) if (connector->encoder == encoder) return connector->display_info.bpc > 8; return false; } /* * 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) { struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); i915_reg_t reg; u32 val = 0; if (HAS_DDI(dev_priv)) reg = HSW_TVIDEO_DIP_GCP(crtc->config->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(encoder)) val |= GCP_COLOR_INDICATION; /* Enable default_phase whenever the display mode is suitably aligned */ if (gcp_default_phase_possible(crtc->config->pipe_bpp, &crtc->config->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 drm_display_mode *adjusted_mode) { struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->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)) val |= VIDEO_DIP_ENABLE_GCP; I915_WRITE(reg, val); POSTING_READ(reg); intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } static void cpt_set_infoframes(struct drm_encoder *encoder, bool enable, const struct drm_display_mode *adjusted_mode) { struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->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)) val |= VIDEO_DIP_ENABLE_GCP; I915_WRITE(reg, val); POSTING_READ(reg); intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } static void vlv_set_infoframes(struct drm_encoder *encoder, bool enable, const struct drm_display_mode *adjusted_mode) { 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(encoder->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)) val |= VIDEO_DIP_ENABLE_GCP; I915_WRITE(reg, val); POSTING_READ(reg); intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } static void hsw_set_infoframes(struct drm_encoder *encoder, bool enable, const struct drm_display_mode *adjusted_mode) { struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); i915_reg_t reg = HSW_TVIDEO_DIP_CTL(intel_crtc->config->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)) val |= VIDEO_DIP_ENABLE_GCP_HSW; I915_WRITE(reg, val); POSTING_READ(reg); intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } 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) { struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); const struct drm_display_mode *adjusted_mode = &crtc->config->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->config->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->config->pipe_bpp > 24) hdmi_val |= HDMI_COLOR_FORMAT_12bpc; else hdmi_val |= SDVO_COLOR_FORMAT_8bpc; if (crtc->config->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)) 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); enum intel_display_power_domain power_domain; u32 tmp; bool ret; power_domain = intel_display_port_power_domain(encoder); if (!intel_display_power_get_if_enabled(dev_priv, 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)) *pipe = SDVO_PORT_TO_PIPE_CHV(tmp); else *pipe = PORT_TO_PIPE(tmp); ret = true; out: intel_display_power_put(dev_priv, 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 *crtc = to_intel_crtc(encoder->base.crtc); WARN_ON(!crtc->config->has_hdmi_sink); DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n", pipe_name(crtc->pipe)); intel_audio_codec_enable(encoder); } 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_crtc *crtc = to_intel_crtc(encoder->base.crtc); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); u32 temp; temp = I915_READ(intel_hdmi->hdmi_reg); temp |= SDVO_ENABLE; if (crtc->config->has_audio) temp |= SDVO_AUDIO_ENABLE; I915_WRITE(intel_hdmi->hdmi_reg, temp); POSTING_READ(intel_hdmi->hdmi_reg); if (crtc->config->has_audio) intel_enable_hdmi_audio(encoder); } 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_crtc *crtc = to_intel_crtc(encoder->base.crtc); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); u32 temp; temp = I915_READ(intel_hdmi->hdmi_reg); temp |= SDVO_ENABLE; if (crtc->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 (crtc->config->pipe_bpp > 24 && crtc->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 (crtc->config->has_audio) intel_enable_hdmi_audio(encoder); } 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(encoder->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 (crtc->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 (crtc->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 (crtc->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 (crtc->config->has_audio) intel_enable_hdmi_audio(encoder); } 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(encoder->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->drm, 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, NULL); 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) { struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); if (crtc->config->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) { struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); if (crtc->config->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_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) { 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) 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) { 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)) return MODE_CLOCK_HIGH; /* BXT DPLL can't generate 223-240 MHz */ if (IS_BROXTON(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; 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); /* if we can't do 8bpc we may still be able to do 12bpc */ if (!HAS_GMCH_DISPLAY(dev_priv) && status != MODE_OK) status = hdmi_port_clock_valid(hdmi, clock * 3 / 2, true); return status; } static bool hdmi_12bpc_possible(struct intel_crtc_state *crtc_state) { struct drm_device *dev = crtc_state->base.crtc->dev; if (HAS_GMCH_DISPLAY(to_i915(dev))) return false; /* * HDMI 12bpc affects the clocks, so it's only possible * when not cloning with other encoder types. */ return crtc_state->output_types == 1 << INTEL_OUTPUT_HDMI; } 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; int clock_8bpc = pipe_config->base.adjusted_mode.crtc_clock; int clock_12bpc = clock_8bpc * 3 / 2; int desired_bpp; pipe_config->has_hdmi_sink = intel_hdmi->has_hdmi_sink; if (pipe_config->has_hdmi_sink) pipe_config->has_infoframe = true; if (intel_hdmi->color_range_auto) { /* See CEA-861-E - 5.1 Default Encoding Parameters */ pipe_config->limited_color_range = pipe_config->has_hdmi_sink && drm_match_cea_mode(adjusted_mode) > 1; } else { pipe_config->limited_color_range = intel_hdmi->limited_color_range; } 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 && intel_hdmi->has_audio) pipe_config->has_audio = true; /* * 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 && hdmi_port_clock_valid(intel_hdmi, clock_12bpc, true) == 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 bpc 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) != 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 = intel_hdmi->aspect_ratio; pipe_config->lane_count = 4; 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); if (intel_hdmi->force_audio != HDMI_AUDIO_AUTO) intel_hdmi->has_audio = intel_hdmi->force_audio == HDMI_AUDIO_ON; if (intel_hdmi->force_audio != HDMI_AUDIO_OFF_DVI) 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 bool intel_hdmi_detect_audio(struct drm_connector *connector) { bool has_audio = false; struct edid *edid; edid = to_intel_connector(connector)->detect_edid; if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) has_audio = drm_detect_monitor_audio(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 intel_digital_port *intel_dig_port = hdmi_to_dig_port(intel_hdmi); struct drm_i915_private *dev_priv = to_i915(connector->dev); int ret; ret = drm_object_property_set_value(&connector->base, property, val); if (ret) return ret; if (property == dev_priv->force_audio_property) { enum hdmi_force_audio i = val; bool has_audio; if (i == intel_hdmi->force_audio) return 0; intel_hdmi->force_audio = i; if (i == HDMI_AUDIO_AUTO) has_audio = intel_hdmi_detect_audio(connector); else has_audio = (i == HDMI_AUDIO_ON); if (i == HDMI_AUDIO_OFF_DVI) intel_hdmi->has_hdmi_sink = 0; intel_hdmi->has_audio = has_audio; goto done; } if (property == dev_priv->broadcast_rgb_property) { bool old_auto = intel_hdmi->color_range_auto; bool old_range = intel_hdmi->limited_color_range; switch (val) { case INTEL_BROADCAST_RGB_AUTO: intel_hdmi->color_range_auto = true; break; case INTEL_BROADCAST_RGB_FULL: intel_hdmi->color_range_auto = false; intel_hdmi->limited_color_range = false; break; case INTEL_BROADCAST_RGB_LIMITED: intel_hdmi->color_range_auto = false; intel_hdmi->limited_color_range = true; break; default: return -EINVAL; } if (old_auto == intel_hdmi->color_range_auto && old_range == intel_hdmi->limited_color_range) return 0; goto done; } if (property == connector->dev->mode_config.aspect_ratio_property) { switch (val) { case DRM_MODE_PICTURE_ASPECT_NONE: intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE; break; case DRM_MODE_PICTURE_ASPECT_4_3: intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_4_3; break; case DRM_MODE_PICTURE_ASPECT_16_9: intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_16_9; break; default: return -EINVAL; } goto done; } return -EINVAL; done: if (intel_dig_port->base.base.crtc) intel_crtc_restore_mode(intel_dig_port->base.base.crtc); return 0; } 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); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode; intel_hdmi_prepare(encoder); intel_hdmi->set_infoframes(&encoder->base, intel_crtc->config->has_hdmi_sink, adjusted_mode); } 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); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode; 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, intel_crtc->config->has_hdmi_sink, adjusted_mode); 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); 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); 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); struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode; 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, intel_crtc->config->has_hdmi_sink, adjusted_mode); 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 = intel_hdmi_set_property, .atomic_get_property = intel_connector_atomic_get_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 = drm_atomic_helper_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, }; 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_hdmi->color_range_auto = true; intel_attach_aspect_ratio_property(connector); intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE; } 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; uint8_t alternate_ddc_pin; 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; switch (port) { case PORT_B: if (IS_BROXTON(dev_priv)) intel_hdmi->ddc_bus = GMBUS_PIN_1_BXT; else intel_hdmi->ddc_bus = GMBUS_PIN_DPB; /* * On BXT A0/A1, sw needs to activate DDIA HPD logic and * interrupts to check the external panel connection. */ if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) intel_encoder->hpd_pin = HPD_PORT_A; else intel_encoder->hpd_pin = HPD_PORT_B; break; case PORT_C: if (IS_BROXTON(dev_priv)) intel_hdmi->ddc_bus = GMBUS_PIN_2_BXT; else intel_hdmi->ddc_bus = GMBUS_PIN_DPC; intel_encoder->hpd_pin = HPD_PORT_C; break; case PORT_D: if (WARN_ON(IS_BROXTON(dev_priv))) intel_hdmi->ddc_bus = GMBUS_PIN_DISABLED; else if (IS_CHERRYVIEW(dev_priv)) intel_hdmi->ddc_bus = GMBUS_PIN_DPD_CHV; else intel_hdmi->ddc_bus = GMBUS_PIN_DPD; intel_encoder->hpd_pin = HPD_PORT_D; break; case PORT_E: /* On SKL PORT E doesn't have seperate GMBUS pin * We rely on VBT to set a proper alternate GMBUS pin. */ alternate_ddc_pin = dev_priv->vbt.ddi_port_info[PORT_E].alternate_ddc_pin; switch (alternate_ddc_pin) { case DDC_PIN_B: intel_hdmi->ddc_bus = GMBUS_PIN_DPB; break; case DDC_PIN_C: intel_hdmi->ddc_bus = GMBUS_PIN_DPC; break; case DDC_PIN_D: intel_hdmi->ddc_bus = GMBUS_PIN_DPD; break; default: MISSING_CASE(alternate_ddc_pin); } intel_encoder->hpd_pin = HPD_PORT_E; break; case PORT_A: intel_encoder->hpd_pin = HPD_PORT_A; /* Internal port only for eDP. */ default: BUG(); } if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { 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)) { 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_device *dev, i915_reg_t hdmi_reg, enum port port) { struct drm_i915_private *dev_priv = to_i915(dev); 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, &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)) { 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)) { 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->port = port; if (IS_CHERRYVIEW(dev)) { 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)) 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); }