Infoframes are used to send secondary data packets. This patch
adds support for DSC Picture parameter set secondary data packets
in the existing write_infoframe helpers.
v3:
* Unused variables cleanup (Ville)
v2:
* Rebase on drm-tip (Manasi)
Cc: Jani Nikula <jani.nik...@linux.intel.com>
Cc: Ville Syrjala <ville.syrj...@linux.intel.com>
Cc: Anusha Srivatsa <anusha.sriva...@intel.com>
Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.sriva...@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_hdmi.c | 21 +++++++++++++++++++--
2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 47baf2fe8f71..eadd880b0ef6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4570,6 +4570,7 @@ enum {
* of the infoframe structure specified by CEA-861. */
#define VIDEO_DIP_DATA_SIZE 32
#define VIDEO_DIP_VSC_DATA_SIZE 36
+#define VIDEO_DIP_PPS_DATA_SIZE 132
#define VIDEO_DIP_CTL _MMIO(0x61170)
/* Pre HSW: */
#define VIDEO_DIP_ENABLE (1 << 31)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
b/drivers/gpu/drm/i915/intel_hdmi.c
index e2c6a2b3e8f2..07e803a604bd 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -115,6 +115,8 @@ static u32 hsw_infoframe_enable(unsigned int type)
switch (type) {
case DP_SDP_VSC:
return VIDEO_DIP_ENABLE_VSC_HSW;
+ case DP_SDP_PPS:
+ return VDIP_ENABLE_PPS;
case HDMI_INFOFRAME_TYPE_AVI:
return VIDEO_DIP_ENABLE_AVI_HSW;
case HDMI_INFOFRAME_TYPE_SPD:
@@ -136,6 +138,8 @@ hsw_dip_data_reg(struct drm_i915_private *dev_priv,
switch (type) {
case DP_SDP_VSC:
return HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder, i);
+ case DP_SDP_PPS:
+ return ICL_VIDEO_DIP_PPS_DATA(cpu_transcoder, i);
case HDMI_INFOFRAME_TYPE_AVI:
return HSW_TVIDEO_DIP_AVI_DATA(cpu_transcoder, i);
case HDMI_INFOFRAME_TYPE_SPD:
@@ -148,6 +152,18 @@ hsw_dip_data_reg(struct drm_i915_private *dev_priv,
}
}
+static int hsw_dip_data_size(unsigned int type)
+{
+ switch (type) {
+ case DP_SDP_VSC:
+ return VIDEO_DIP_VSC_DATA_SIZE;
+ case DP_SDP_PPS:
+ return VIDEO_DIP_PPS_DATA_SIZE;
+ default:
+ return VIDEO_DIP_DATA_SIZE;
+ }
+}
+
static void g4x_write_infoframe(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
unsigned int type,
@@ -382,11 +398,12 @@ static void hsw_write_infoframe(struct intel_encoder
*encoder,
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
i915_reg_t ctl_reg = HSW_TVIDEO_DIP_CTL(cpu_transcoder);
- int data_size = type == DP_SDP_VSC ?
- VIDEO_DIP_VSC_DATA_SIZE : VIDEO_DIP_DATA_SIZE;
+ int data_size;
int i;
u32 val = I915_READ(ctl_reg);
+ data_size = hsw_dip_data_size(type);
+
val &= ~hsw_infoframe_enable(type);
I915_WRITE(ctl_reg, val);
--
2.19.1
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