[Intel-gfx] [PATCH v12 5/8] drm/i915: Add AVI infoframe support for LSPCON
Shashank Sharma
shashank.sharma at intel.com
Fri Oct 12 06:23:11 UTC 2018
In order to pass AVI infoframes to LSPCON devices, a source has to
write them in a vendor recommended method and location.
This patch series:
- adds generic LSPCON infoframe setup functions.
- registers these functions into existing AVI infoframe framework.
- triggers these functions from modeset sequence.
Next patches in the series will add vendor specific code.
V2: Added new parameter to align with new definition of
drm_hdmi_avi_infoframe_quant_range
V3: Added r-b from Maarten (for V2)
Added new parameter output_format in struct lspcon to accommodate
Ville's review comments on last patch of the series
V4: Addressed Ville's review comment
- Do not add output_format in LSPCON state, as its non-atomic. Add
this into CRTC state (added in a later patch).
V5: Rebase
V6: Rebase
V7: Rebase
V8: Rebase
V9: Rebase
V10: Rebase
V11: Accommodated rebasing changes in intel_git_port fptrs (set_infoframes and infoframe_enabled)
Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Imre Deak <imre.deak at linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
---
drivers/gpu/drm/i915/intel_ddi.c | 19 +++++++++++---
drivers/gpu/drm/i915/intel_drv.h | 13 +++++++++-
drivers/gpu/drm/i915/intel_hdmi.c | 13 +++++++---
drivers/gpu/drm/i915/intel_lspcon.c | 49 +++++++++++++++++++++++++++++++++++++
4 files changed, 86 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 7d868f5..be21131 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2978,10 +2978,22 @@ static void intel_ddi_pre_enable(struct intel_encoder *encoder,
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
- if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
intel_ddi_pre_enable_hdmi(encoder, crtc_state, conn_state);
- else
+ } else {
+ struct intel_lspcon *lspcon =
+ enc_to_intel_lspcon(&encoder->base);
+
intel_ddi_pre_enable_dp(encoder, crtc_state, conn_state);
+ if (lspcon->active) {
+ struct intel_digital_port *dig_port =
+ enc_to_dig_port(&encoder->base);
+
+ dig_port->set_infoframes(encoder,
+ crtc_state->has_infoframe,
+ crtc_state, conn_state);
+ }
+ }
}
static void intel_disable_ddi_buf(struct intel_encoder *encoder)
@@ -3845,8 +3857,6 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
MISSING_CASE(port);
}
- intel_infoframe_init(intel_dig_port);
-
if (init_dp) {
if (!intel_ddi_init_dp_connector(intel_dig_port))
goto err;
@@ -3875,6 +3885,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
port_name(port));
}
+ intel_infoframe_init(intel_dig_port);
return;
err:
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6981e72..8c402d0 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1318,6 +1318,12 @@ static inline bool intel_encoder_is_dp(struct intel_encoder *encoder)
}
}
+static inline struct intel_lspcon *
+enc_to_intel_lspcon(struct drm_encoder *encoder)
+{
+ return &enc_to_dig_port(encoder)->lspcon;
+}
+
static inline struct intel_digital_port *
dp_to_dig_port(struct intel_dp *intel_dp)
{
@@ -1879,7 +1885,6 @@ bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
void intel_infoframe_init(struct intel_digital_port *intel_dig_port);
-
/* intel_lvds.c */
bool intel_lvds_port_enabled(struct drm_i915_private *dev_priv,
i915_reg_t lvds_reg, enum pipe *pipe);
@@ -2210,6 +2215,12 @@ void intel_color_load_luts(struct drm_crtc_state *crtc_state);
bool lspcon_init(struct intel_digital_port *intel_dig_port);
void lspcon_resume(struct intel_lspcon *lspcon);
void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
+void lspcon_set_infoframes(struct intel_encoder *encoder,
+ bool enable,
+ const struct intel_crtc_state *crtc_state,
+ const struct drm_connector_state *conn_state);
+bool lspcon_infoframe_enabled(struct intel_encoder *encoder,
+ const struct intel_crtc_state *pipe_config);
/* intel_pipe_crc.c */
#ifdef CONFIG_DEBUG_FS
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index e2cc5ed..d2232e3 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -2321,9 +2321,16 @@ void intel_infoframe_init(struct intel_digital_port *intel_dig_port)
intel_dig_port->set_infoframes = g4x_set_infoframes;
intel_dig_port->infoframe_enabled = g4x_infoframe_enabled;
} else if (HAS_DDI(dev_priv)) {
- intel_dig_port->write_infoframe = hsw_write_infoframe;
- intel_dig_port->set_infoframes = hsw_set_infoframes;
- intel_dig_port->infoframe_enabled = hsw_infoframe_enabled;
+ if (intel_dig_port->lspcon.active) {
+ intel_dig_port->set_infoframes = lspcon_set_infoframes;
+ intel_dig_port->infoframe_enabled =
+ lspcon_infoframe_enabled;
+ } else {
+ intel_dig_port->set_infoframes = hsw_set_infoframes;
+ intel_dig_port->infoframe_enabled =
+ hsw_infoframe_enabled;
+ intel_dig_port->write_infoframe = hsw_write_infoframe;
+ }
} else if (HAS_PCH_IBX(dev_priv)) {
intel_dig_port->write_infoframe = ibx_write_infoframe;
intel_dig_port->set_infoframes = ibx_set_infoframes;
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c
index 56f80b7..8d49727 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -234,6 +234,55 @@ static void lspcon_resume_in_pcon_wa(struct intel_lspcon *lspcon)
DRM_DEBUG_KMS("LSPCON DP descriptor mismatch after resume\n");
}
+void lspcon_set_infoframes(struct intel_encoder *encoder,
+ bool enable,
+ const struct intel_crtc_state *crtc_state,
+ const struct drm_connector_state *conn_state)
+{
+ ssize_t ret;
+ union hdmi_infoframe frame;
+ uint8_t buf[VIDEO_DIP_DATA_SIZE];
+ struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base);
+ struct intel_lspcon *lspcon = &dig_port->lspcon;
+ struct intel_dp *intel_dp = &dig_port->dp;
+ struct drm_connector *connector = &intel_dp->attached_connector->base;
+ const struct drm_display_mode *mode = &crtc_state->base.adjusted_mode;
+ bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
+
+ if (!lspcon->active) {
+ DRM_ERROR("Writing infoframes while LSPCON disabled ?\n");
+ return;
+ }
+
+ ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
+ mode, is_hdmi2_sink);
+ if (ret < 0) {
+ DRM_ERROR("couldn't fill AVI infoframe\n");
+ return;
+ }
+
+ drm_hdmi_avi_infoframe_quant_range(&frame.avi, mode,
+ crtc_state->limited_color_range ?
+ HDMI_QUANTIZATION_RANGE_LIMITED :
+ HDMI_QUANTIZATION_RANGE_FULL,
+ false, is_hdmi2_sink);
+
+ ret = hdmi_infoframe_pack(&frame, buf, sizeof(buf));
+ if (ret < 0) {
+ DRM_ERROR("Failed to pack AVI IF\n");
+ return;
+ }
+
+ dig_port->write_infoframe(encoder, crtc_state, HDMI_INFOFRAME_TYPE_AVI,
+ buf, ret);
+}
+
+bool lspcon_infoframe_enabled(struct intel_encoder *encoder,
+ const struct intel_crtc_state *pipe_config)
+{
+ return enc_to_intel_lspcon(&encoder->base)->active;
+}
+
void lspcon_resume(struct intel_lspcon *lspcon)
{
enum drm_lspcon_mode expected_mode;
--
2.7.4
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