From: Damien Lespiau damien.lespiau@intel.com
When scanning out a 3D framebuffer, send the corresponding infoframe to the HDMI sink.
See http://www.hdmi.org/manufacturer/specification.aspx for details.
Signed-off-by: Damien Lespiau damien.lespiau@intel.com --- drivers/gpu/drm/i915/intel_drv.h | 14 +++++++++++ drivers/gpu/drm/i915/intel_hdmi.c | 49 +++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/i915/intel_modes.c | 12 ++++++++++ 3 files changed, 74 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index cd54cf8..c326d30e 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -263,6 +263,13 @@ struct cxsr_latency { #define DIP_SPD_BD 0xa #define DIP_SPD_SCD 0xb
+#define DIP_TYPE_VENDOR 0x81 +#define DIP_VERSION_VENDOR 0x1 +#define DIP_HDMI_3D_PRESENT (0x2<<5) +#define DIP_HDMI_3D_STRUCT_FP (0x0<<4) +#define DIP_HDMI_3D_STRUCT_TB (0x6<<4) +#define DIP_HDMI_3D_STRUCT_SBSH (0x8<<4) + struct dip_infoframe { uint8_t type; /* HB0 */ uint8_t ver; /* HB1 */ @@ -292,6 +299,12 @@ struct dip_infoframe { uint8_t pd[16]; uint8_t sdi; } __attribute__ ((packed)) spd; + struct { + uint8_t vendor_id[3]; + uint8_t video_format; + uint8_t s3d_struct; + uint8_t s3d_ext_data; + } __attribute__ ((packed)) hdmi; uint8_t payload[27]; } __attribute__ ((packed)) body; } __attribute__((packed)); @@ -348,6 +361,7 @@ int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
extern void intel_attach_force_audio_property(struct drm_connector *connector); extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector); +extern void intel_attach_expose_3d_modes_property(struct drm_connector *connector);
extern void intel_crt_init(struct drm_device *dev); extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 98f6024..2d51b7e 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -83,6 +83,8 @@ static u32 g4x_infoframe_index(struct dip_infoframe *frame) return VIDEO_DIP_SELECT_AVI; case DIP_TYPE_SPD: return VIDEO_DIP_SELECT_SPD; + case DIP_TYPE_VENDOR: + return VIDEO_DIP_SELECT_VENDOR; default: DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type); return 0; @@ -96,6 +98,8 @@ static u32 g4x_infoframe_enable(struct dip_infoframe *frame) return VIDEO_DIP_ENABLE_AVI; case DIP_TYPE_SPD: return VIDEO_DIP_ENABLE_SPD; + case DIP_TYPE_VENDOR: + return VIDEO_DIP_ENABLE_VENDOR; default: DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type); return 0; @@ -338,6 +342,42 @@ static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder) intel_set_infoframe(encoder, &spd_if); }
+static void intel_hdmi_set_hdmi_infoframe(struct drm_encoder *encoder, + struct drm_display_mode *adjusted_mode) +{ + struct dip_infoframe hdmi_if; + + /* We really only need to send a HDMI vendor info frame when having + * a 3D format to describe */ + if (!(adjusted_mode->flags & DRM_MODE_FLAG_3D_MASK)) + return; + + memset(&hdmi_if, 0, sizeof(hdmi_if)); + hdmi_if.type = DIP_TYPE_VENDOR; + hdmi_if.ver = DIP_VERSION_VENDOR; + /* HDMI IEEE registration id, least significant bit first */ + hdmi_if.body.hdmi.vendor_id[0] = 0x03; + hdmi_if.body.hdmi.vendor_id[1] = 0x0c; + hdmi_if.body.hdmi.vendor_id[2] = 0x00; + hdmi_if.body.hdmi.video_format = DIP_HDMI_3D_PRESENT; + if (adjusted_mode->flags & DRM_MODE_FLAG_3D_FRAME_PACKING) + hdmi_if.body.hdmi.s3d_struct = DIP_HDMI_3D_STRUCT_FP; + else if (adjusted_mode->flags & DRM_MODE_FLAG_3D_TOP_BOTTOM) + hdmi_if.body.hdmi.s3d_struct = DIP_HDMI_3D_STRUCT_TB; + else if (adjusted_mode->flags & DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF) + hdmi_if.body.hdmi.s3d_struct = DIP_HDMI_3D_STRUCT_SBSH; + /* len is the payload len, not including checksum. Side by side (half) + * has an extra byte for 3D_Ext_Data */ + if (adjusted_mode->flags & DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF) { + hdmi_if.len = 6; + /* SBSH is subsampled by a factor of 2 */ + hdmi_if.body.hdmi.s3d_ext_data = 2 << 4; + } else + hdmi_if.len = 5; + + intel_set_infoframe(encoder, &hdmi_if); +} + static void g4x_set_infoframes(struct drm_encoder *encoder, struct drm_display_mode *adjusted_mode) { @@ -398,6 +438,7 @@ static void g4x_set_infoframes(struct drm_encoder *encoder,
intel_hdmi_set_avi_infoframe(encoder, adjusted_mode); intel_hdmi_set_spd_infoframe(encoder); + intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); }
static void ibx_set_infoframes(struct drm_encoder *encoder, @@ -457,6 +498,7 @@ static void ibx_set_infoframes(struct drm_encoder *encoder,
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, @@ -492,6 +534,7 @@ static void cpt_set_infoframes(struct drm_encoder *encoder,
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, @@ -526,6 +569,7 @@ static void vlv_set_infoframes(struct drm_encoder *encoder,
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, @@ -792,7 +836,8 @@ intel_hdmi_set_property(struct drm_connector *connector, uint64_t val) { struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); - struct drm_i915_private *dev_priv = connector->dev->dev_private; + struct drm_device *dev = connector->dev; + struct drm_i915_private *dev_priv = dev->dev_private; int ret;
ret = drm_connector_property_set_value(connector, property, val); @@ -828,6 +873,7 @@ intel_hdmi_set_property(struct drm_connector *connector, goto done; }
+ return -EINVAL;
done: @@ -887,6 +933,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c { intel_attach_force_audio_property(connector); intel_attach_broadcast_rgb_property(connector); + intel_attach_expose_3d_modes_property(connector); }
void intel_hdmi_init(struct drm_device *dev, int sdvox_reg) diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c index 29b7259..50216af 100644 --- a/drivers/gpu/drm/i915/intel_modes.c +++ b/drivers/gpu/drm/i915/intel_modes.c @@ -124,3 +124,15 @@ intel_attach_broadcast_rgb_property(struct drm_connector *connector)
drm_connector_attach_property(connector, prop, 0); } + +void +intel_attach_expose_3d_modes_property(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *prop; + + drm_mode_create_s3d_properties(dev); + prop = dev->mode_config.s3d_expose_modes_property; + drm_connector_attach_property(connector, prop, + DRM_MODE_EXPOSE_3D_MODES_OFF); +}