On 2019-08-27 at 10:36:11 +0530, Sharma, Shashank wrote:
>
> On 8/22/2019 8:49 PM, Ramalingam C wrote:
> > I915 needs to send the index of the transcoder as per ME FW.
> > To support this, define enum mei_fw_ddi and add as a member into
> > the struct hdcp_port_data.
> >
> > Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
> > Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> > ---
> > include/drm/i915_mei_hdcp_interface.h | 13 +++++++++++++
> > 1 file changed, 13 insertions(+)
> >
> > diff --git a/include/drm/i915_mei_hdcp_interface.h b/include/drm/i915_mei_hdcp_interface.h
> > index a97acf1c9710..0de629bf2f62 100644
> > --- a/include/drm/i915_mei_hdcp_interface.h
> > +++ b/include/drm/i915_mei_hdcp_interface.h
> > @@ -54,9 +54,21 @@ enum mei_fw_ddi {
> > MEI_DDI_RANGE_END = MEI_DDI_A,
> > };
> > +enum mei_fw_tc {
> > + MEI_INVALID_TRANSCODER = 0x00, /* Invalid transcoder type */
> > + MEI_TC_EDP, /* Transcoder for eDP */
> > + MEI_TC_DSI0, /* Transcoder for DSI0 */
> > + MEI_TC_DSI1, /* Transcoder for DSI1 */
> Also, this is a bit odd, coz ports above can't do HDCP, so it doesn't make
> sense to have them here. But seems like we want to be in sync with MEI FW
> definitions, so we should change the function
>
> intel_get_mei_fw_ddi_index to accept only from ports A to D, not above or
> below.
As we(I915) support HDCP on HDMI and DP only we will have TCA to TCD
only. Sure we can fix the intel_get_mei_fw_ddi_index to fill invalid TC
on other transcoders.
-Ram
>
> - Shashank
>
> > + MEI_TC_A = 0x10, /* Transcoder TCA */
> > + MEI_TC_B, /* Transcoder TCB */
> > + MEI_TC_C, /* Transcoder TCC */
> > + MEI_TC_D /* Transcoder TCD */
> > +};
> > +
> > /**
> > * struct hdcp_port_data - intel specific HDCP port data
> > * @fw_ddi: ddi index as per ME FW
> > + * @fw_tc: transcoder index as per ME FW
> > * @port_type: HDCP port type as per ME FW classification
> > * @protocol: HDCP adaptation as per ME FW
> > * @k: No of streams transmitted on a port. Only on DP MST this is != 1
> > @@ -69,6 +81,7 @@ enum mei_fw_ddi {
> > */
> > struct hdcp_port_data {
> > enum mei_fw_ddi fw_ddi;
> > + enum mei_fw_tc fw_tc;
> > u8 port_type;
> > u8 protocol;
> > u16 k;
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