>
> ME FW takes the transcoder details for Gen12+ platforms, as HDCP HW block is
> moved to transcoders.
>
> hdcp_port_data is extended with enum transcoder. Payload structure is
> modified and populated from the hdcp_port_data.
>
> Signed-off-by: Ramalingam C <[email protected]>
> ---
> drivers/misc/mei/hdcp/mei_hdcp.c | 27 +++++++++++++++++++++++++++
> drivers/misc/mei/hdcp/mei_hdcp.h | 15 ++++++++++++++-
> include/drm/i915_mei_hdcp_interface.h | 2 ++
> 3 files changed, 43 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c
> b/drivers/misc/mei/hdcp/mei_hdcp.c
> index c681f6fab342..7efe3b65a986 100644
> --- a/drivers/misc/mei/hdcp/mei_hdcp.c
> +++ b/drivers/misc/mei/hdcp/mei_hdcp.c
> @@ -39,6 +39,22 @@ static inline u8 mei_get_ddi_index(enum port port)
> }
> }
>
> +static inline u8 mei_get_tc_type(enum transcoder tc) {
> + switch (tc) {
> + case TRANSCODER_A ... TRANSCODER_D:
> + return (u8)(tc | 0x10);
> + case TRANSCODER_EDP:
> + return TC_EDP;
> + case TRANSCODER_DSI_0:
> + return TC_DSI0;
> + case TRANSCODER_DSI_1:
> + return TC_DSI1;
> + default:
> + return MEI_INVALID_TRANSCODER;
> + }
> +}
> +
> /**
> * mei_hdcp_initiate_session() - Initiate a Wired HDCP2.2 Tx Session in ME FW
> * @dev: device corresponding to the mei_cl_device @@ -70,6 +86,7 @@
> mei_hdcp_initiate_session(struct device *dev, struct hdcp_port_data *data,
>
> session_init_in.port.integrated_port_type = data->port_type;
> session_init_in.port.physical_port = mei_get_ddi_index(data->port);
> + session_init_in.port.attached_transcoder = mei_get_tc_type(data->tc);
> session_init_in.protocol = data->protocol;
>
> byte = mei_cldev_send(cldev, (u8 *)&session_init_in, @@ -139,6
> +156,7 @@ mei_hdcp_verify_receiver_cert_prepare_km(struct device *dev,
>
> verify_rxcert_in.port.integrated_port_type = data->port_type;
> verify_rxcert_in.port.physical_port = mei_get_ddi_index(data->port);
> + verify_rxcert_in.port.attached_transcoder = mei_get_tc_type(data-
> >tc);
>
> verify_rxcert_in.cert_rx = rx_cert->cert_rx;
> memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN);
> @@ -209,6 +227,7 @@ mei_hdcp_verify_hprime(struct device *dev, struct
> hdcp_port_data *data,
>
> send_hprime_in.port.integrated_port_type = data->port_type;
> send_hprime_in.port.physical_port = mei_get_ddi_index(data->port);
> + send_hprime_in.port.attached_transcoder = mei_get_tc_type(data-
> >tc);
>
> memcpy(send_hprime_in.h_prime, rx_hprime->h_prime,
> HDCP_2_2_H_PRIME_LEN);
> @@ -266,6 +285,7 @@ mei_hdcp_store_pairing_info(struct device *dev, struct
> hdcp_port_data *data,
>
> pairing_info_in.port.integrated_port_type = data->port_type;
> pairing_info_in.port.physical_port = mei_get_ddi_index(data->port);
> + pairing_info_in.port.attached_transcoder = mei_get_tc_type(data->tc);
>
> memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km,
> HDCP_2_2_E_KH_KM_LEN);
> @@ -324,6 +344,7 @@ mei_hdcp_initiate_locality_check(struct device *dev,
>
> lc_init_in.port.integrated_port_type = data->port_type;
> lc_init_in.port.physical_port = mei_get_ddi_index(data->port);
> + lc_init_in.port.attached_transcoder = mei_get_tc_type(data->tc);
>
> byte = mei_cldev_send(cldev, (u8 *)&lc_init_in, sizeof(lc_init_in));
> if (byte < 0) {
> @@ -379,6 +400,7 @@ mei_hdcp_verify_lprime(struct device *dev, struct
> hdcp_port_data *data,
>
> verify_lprime_in.port.integrated_port_type = data->port_type;
> verify_lprime_in.port.physical_port = mei_get_ddi_index(data->port);
> + verify_lprime_in.port.attached_transcoder = mei_get_tc_type(data-
> >tc);
>
> memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime,
> HDCP_2_2_L_PRIME_LEN);
> @@ -436,6 +458,7 @@ static int mei_hdcp_get_session_key(struct device
> *dev,
>
> get_skey_in.port.integrated_port_type = data->port_type;
> get_skey_in.port.physical_port = mei_get_ddi_index(data->port);
> + get_skey_in.port.attached_transcoder = mei_get_tc_type(data->tc);
>
> byte = mei_cldev_send(cldev, (u8 *)&get_skey_in, sizeof(get_skey_in));
> if (byte < 0) {
> @@ -500,6 +523,7 @@ mei_hdcp_repeater_check_flow_prepare_ack(struct
> device *dev,
>
> verify_repeater_in.port.integrated_port_type = data->port_type;
> verify_repeater_in.port.physical_port = mei_get_ddi_index(data-
> >port);
> + verify_repeater_in.port.attached_transcoder =
> +mei_get_tc_type(data->tc);
>
> memcpy(verify_repeater_in.rx_info, rep_topology->rx_info,
> HDCP_2_2_RXINFO_LEN);
> @@ -570,6 +594,7 @@ static int mei_hdcp_verify_mprime(struct device *dev,
>
> verify_mprime_in.port.integrated_port_type = data->port_type;
> verify_mprime_in.port.physical_port = mei_get_ddi_index(data->port);
> + verify_mprime_in.port.attached_transcoder = mei_get_tc_type(data-
> >tc);
>
> memcpy(verify_mprime_in.m_prime, stream_ready->m_prime,
> HDCP_2_2_MPRIME_LEN);
> @@ -631,6 +656,7 @@ static int mei_hdcp_enable_authentication(struct
> device *dev,
>
> enable_auth_in.port.integrated_port_type = data->port_type;
> enable_auth_in.port.physical_port = mei_get_ddi_index(data->port);
> + enable_auth_in.port.attached_transcoder = mei_get_tc_type(data->tc);
> enable_auth_in.stream_type = data->streams[0].stream_type;
>
> byte = mei_cldev_send(cldev, (u8 *)&enable_auth_in, @@ -685,6
> +711,7 @@ mei_hdcp_close_session(struct device *dev, struct hdcp_port_data
> *data)
>
> session_close_in.port.integrated_port_type = data->port_type;
> session_close_in.port.physical_port = mei_get_ddi_index(data->port);
> + session_close_in.port.attached_transcoder = mei_get_tc_type(data-
> >tc);
>
> byte = mei_cldev_send(cldev, (u8 *)&session_close_in,
> sizeof(session_close_in));
> diff --git a/drivers/misc/mei/hdcp/mei_hdcp.h
> b/drivers/misc/mei/hdcp/mei_hdcp.h
> index e4b1cd54c853..89e2f99ff60a 100644
> --- a/drivers/misc/mei/hdcp/mei_hdcp.h
> +++ b/drivers/misc/mei/hdcp/mei_hdcp.h
> @@ -184,8 +184,10 @@ struct hdcp_cmd_no_data {
> /* Uniquely identifies the hdcp port being addressed for a given command. */
> struct hdcp_port_id {
> u8 integrated_port_type;
> + /* Used until Gen11.5. Must be zero for Gen11.5+ */
> u8 physical_port;
> - u16 reserved;
> + u8 attached_transcoder;
> + u8 reserved;
> } __packed;
>
> /*
> @@ -374,4 +376,15 @@ enum mei_fw_ddi {
> MEI_DDI_A = 7,
> MEI_DDI_RANGE_END = MEI_DDI_A,
> };
> +
> +enum mei_fw_tc {
> + MEI_INVALID_TRANSCODER = 0x00, // Invalid transcoder type
> + TC_EDP, // Transcoder for eDP
> + TC_DSI0, // Transcoder for DSI0
> + TC_DSI1, // Transcoder for DSI1
> + TC_A = 0x10, // Transcoder TCA
> + TC_B, // Transcoder TCB
> + TC_C, // Transcoder TCC
> + TC_D // Transcoder TCD
> +};
Don't use // for comments
Ned MEI_ prefix
> #endif /* __MEI_HDCP_H__ */
> diff --git a/include/drm/i915_mei_hdcp_interface.h
> b/include/drm/i915_mei_hdcp_interface.h
> index 8c344255146a..dc0de63ce0cb 100644
> --- a/include/drm/i915_mei_hdcp_interface.h
> +++ b/include/drm/i915_mei_hdcp_interface.h
> @@ -45,6 +45,7 @@ enum hdcp_wired_protocol {
> /**
> * struct hdcp_port_data - intel specific HDCP port data
> * @port: port index as per I915
> + * @tc: transcoder index as per I915
> * @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 @@ -
> 57,6 +58,7 @@ enum hdcp_wired_protocol {
> */
> struct hdcp_port_data {
> enum port port;
> + enum transcoder tc;
> u8 port_type;
> u8 protocol;
> u16 k;
> --
> 2.20.1
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