On Wed, 14 Dec 2016, Arnaud Pouliquen arnaud.pouliquen@st.com wrote:
Add helper to allow users to retrieve the speaker allocations without knowledge of the ELD structure.
Signed-off-by: Arnaud Pouliquen arnaud.pouliquen@st.com
For this one patch,
Reviewed-by: Jani Nikula jani.nikula@intel.com
include/drm/drm_edid.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 919933d..0706cc6 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -245,6 +245,7 @@ struct detailed_timing { # define DRM_ELD_AUD_SYNCH_DELAY_MAX 0xfa /* 500 ms */
#define DRM_ELD_SPEAKER 7 +# define DRM_ELD_SPEAKER_MASK 0x7f # define DRM_ELD_SPEAKER_RLRC (1 << 6) # define DRM_ELD_SPEAKER_FLRC (1 << 5) # define DRM_ELD_SPEAKER_RC (1 << 4) @@ -412,6 +413,18 @@ static inline int drm_eld_size(const uint8_t *eld) }
/**
- drm_eld_get_spk_alloc - Get speaker allocation
- @eld: pointer to an ELD memory structure
- The returned value is the speakers mask. User has to use %DRM_ELD_SPEAKER
- field definitions to identify speakers.
- */
+static inline u8 drm_eld_get_spk_alloc(const uint8_t *eld) +{
- return eld[DRM_ELD_SPEAKER] & DRM_ELD_SPEAKER_MASK;
+}
+/**
- drm_eld_get_conn_type - Get device type hdmi/dp connected
- @eld: pointer to an ELD memory structure