Commit graph

7 commits

Author SHA1 Message Date
Lespiau, Damien
974e0701c5 video/hdmi: Derive the bar data valid bit from the bar data fields
Just like:

  Author: Damien Lespiau <damien.lespiau@intel.com>
  Date:   Mon Aug 12 11:53:24 2013 +0100

      video/hdmi: Don't let the user of this API create invalid infoframes

But this time for the horizontal/vertical bar data present bits.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 08:40:35 +10:00
Lespiau, Damien
a5ad3dcf35 video/hdmi: Don't let the user of this API create invalid infoframes
To set the active aspect ratio value in the AVI infoframe today, you not
only have to set the active_aspect field, but also the active_info_valid
bit. Out of the 1 user of this API, we had 100% misuse, forgetting the
_valid bit. This was fixed in:

  Author: Damien Lespiau <damien.lespiau@intel.com>
  Date:   Tue Aug 6 20:32:17 2013 +0100

      drm: Don't generate invalid AVI infoframes for CEA modes

We can do better and derive the _valid bit from the user wanting to set
the active aspect ratio.

v2: Fix multi-lines comment style (Thierry Reding)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 08:40:29 +10:00
Damien Lespiau
3b390f6267 video/hmdi: Clear the whole incoming buffer, not just the infoframe size
If the user if this API is providing a bigger buffer than the infoframe
size, it could be for a could reason. For instance it could be because
it gives the buffer that will be written to the hardware, up to the
maximum of an infoframe size.

Instead of just zeroing up to the infoframe size, let's zero the whole
incoming buffer as those extra bytes are also used to compute the
ECC and need to be 0.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-08-08 14:04:46 +02:00
Damien Lespiau
72b098964d video/hdmi: Introduce a generic hdmi_infoframe union
And a way to pack hdmi_infoframe generically.

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-08-08 14:04:45 +02:00
Damien Lespiau
3c6b054de1 video/hdmi: Replace the payload length by their defines
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-08-08 14:04:44 +02:00
Thierry Reding
96d672e0e5 video: hdmi: Relicense under MIT
In order to make it easier to port the code to other operating systems
(like the BSDs), relicense the HDMI helpers under the more permissive
MIT license.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-12 14:01:40 +10:00
Thierry Reding
f142d3bd55 video: Add generic HDMI infoframe helpers
Add generic helpers to pack HDMI infoframes into binary buffers.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2013-02-22 08:20:05 +01:00