Commit 2da8af54 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: implement hsw_write_infoframe



Both the control and data registers are completely different now.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarEugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ed517fbb
......@@ -1697,6 +1697,7 @@
/* Video Data Island Packet control */
#define VIDEO_DIP_DATA 0x61178
#define VIDEO_DIP_CTL 0x61170
/* Pre HSW: */
#define VIDEO_DIP_ENABLE (1 << 31)
#define VIDEO_DIP_PORT_B (1 << 29)
#define VIDEO_DIP_PORT_C (2 << 29)
......@@ -1713,6 +1714,9 @@
#define VIDEO_DIP_FREQ_VSYNC (1 << 16)
#define VIDEO_DIP_FREQ_2VSYNC (2 << 16)
#define VIDEO_DIP_FREQ_MASK (3 << 16)
/* HSW and later: */
#define VIDEO_DIP_ENABLE_AVI_HSW (1 << 12)
#define VIDEO_DIP_ENABLE_SPD_HSW (1 << 0)
/* Panel power sequencing */
#define PP_STATUS 0x61200
......
......@@ -89,6 +89,32 @@ static u32 g4x_infoframe_enable(struct dip_infoframe *frame)
}
}
static u32 hsw_infoframe_enable(struct dip_infoframe *frame)
{
switch (frame->type) {
case DIP_TYPE_AVI:
return VIDEO_DIP_ENABLE_AVI_HSW;
case DIP_TYPE_SPD:
return VIDEO_DIP_ENABLE_SPD_HSW;
default:
DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type);
return 0;
}
}
static u32 hsw_infoframe_data_reg(struct dip_infoframe *frame, enum pipe pipe)
{
switch (frame->type) {
case DIP_TYPE_AVI:
return HSW_TVIDEO_DIP_AVI_DATA(pipe);
case DIP_TYPE_SPD:
return HSW_TVIDEO_DIP_SPD_DATA(pipe);
default:
DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type);
return 0;
}
}
static void g4x_write_infoframe(struct drm_encoder *encoder,
struct dip_infoframe *frame)
{
......@@ -251,13 +277,30 @@ static void vlv_write_infoframe(struct drm_encoder *encoder,
static void hsw_write_infoframe(struct drm_encoder *encoder,
struct dip_infoframe *frame)
{
/* Not implemented yet, so avoid doing anything at all.
* This is the placeholder for Paulo Zanoni's infoframe writing patch
*/
DRM_DEBUG_DRIVER("Attempting to write infoframe on Haswell, this is not implemented yet.\n");
uint32_t *data = (uint32_t *)frame;
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
u32 ctl_reg = HSW_TVIDEO_DIP_CTL(intel_crtc->pipe);
u32 data_reg = hsw_infoframe_data_reg(frame, intel_crtc->pipe);
unsigned int i, len = DIP_HEADER_SIZE + frame->len;
u32 val = I915_READ(ctl_reg);
return;
if (data_reg == 0)
return;
intel_wait_for_vblank(dev, intel_crtc->pipe);
val &= ~hsw_infoframe_enable(frame);
I915_WRITE(ctl_reg, val);
for (i = 0; i < len; i += 4) {
I915_WRITE(data_reg + i, *data);
data++;
}
val |= hsw_infoframe_enable(frame);
I915_WRITE(ctl_reg, val);
}
static void intel_set_infoframe(struct drm_encoder *encoder,
......
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