| Message ID | 1449176942-3441-11-git-send-email-subhransu.s.prusty@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, 03 Dec 2015 22:08:59 +0100, Subhransu S. Prusty wrote: > > To fill the audio infoframe it is required to identify the > connection type as DP or HDMI. This patch adds an API which > parses ELD and returns the display type of connected. > > Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> > Signed-off-by: Vinod Koul <vinod.koul@intel.com> > Cc: David Airlie <airlied@linux.ie> > Cc: dri-devel@lists.freedesktop.org > Cc: Daniel Vetter <daniel.vetter@intel.com> > --- > include/drm/drm_edid.h | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h > index 2af9769..072de90 100644 > --- a/include/drm/drm_edid.h > +++ b/include/drm/drm_edid.h > @@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld) > return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; > } > > +/** > + * drm_eld_get_conn_type - Get device type hdmi/dp connected > + * @eld: pointer to an eld memory structure > + * > + * The caller need to use DRM_ELD_CONN_TYPE_HDMI or DRM_ELD_CONN_TYPE_DP to > + * identify the display type connected. Constants should be marked with '%'. Takashi
On Thu, Dec 03, 2015 at 05:16:34PM +0100, Takashi Iwai wrote: > On Thu, 03 Dec 2015 22:08:59 +0100, > Subhransu S. Prusty wrote: > > > > To fill the audio infoframe it is required to identify the > > connection type as DP or HDMI. This patch adds an API which > > parses ELD and returns the display type of connected. > > > > Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> > > Signed-off-by: Vinod Koul <vinod.koul@intel.com> > > Cc: David Airlie <airlied@linux.ie> > > Cc: dri-devel@lists.freedesktop.org > > Cc: Daniel Vetter <daniel.vetter@intel.com> > > --- > > include/drm/drm_edid.h | 12 ++++++++++++ > > 1 file changed, 12 insertions(+) > > > > diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h > > index 2af9769..072de90 100644 > > --- a/include/drm/drm_edid.h > > +++ b/include/drm/drm_edid.h > > @@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld) > > return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; > > } > > > > +/** > > + * drm_eld_get_conn_type - Get device type hdmi/dp connected > > + * @eld: pointer to an eld memory structure > > + * > > + * The caller need to use DRM_ELD_CONN_TYPE_HDMI or DRM_ELD_CONN_TYPE_DP to > > + * identify the display type connected. > > Constants should be marked with '%'. Sure will add it. Regards, Subhransu > > > Takashi
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 2af9769..072de90 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld) return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; } +/** + * drm_eld_get_conn_type - Get device type hdmi/dp connected + * @eld: pointer to an eld memory structure + * + * The caller need to use DRM_ELD_CONN_TYPE_HDMI or DRM_ELD_CONN_TYPE_DP to + * identify the display type connected. + */ +static inline u8 drm_eld_get_conn_type(const uint8_t *eld) +{ + return eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_CONN_TYPE_MASK; +} + struct edid *drm_do_get_edid(struct drm_connector *connector, int (*get_edid_block)(void *data, u8 *buf, unsigned int block, size_t len),