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 ramalingam.c@intel.com --- 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 +}; #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;