| Message ID | 1548917996-28081-5-git-send-email-ramalingam.c@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: Implement HDCP2.2 | expand |
>-----Original Message----- >From: C, Ramalingam >Sent: Thursday, January 31, 2019 12:29 PM >To: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; >daniel.vetter@ffwll.ch; Winkler, Tomas <tomas.winkler@intel.com>; Shankar, >Uma <uma.shankar@intel.com> >Cc: C, Ramalingam <ramalingam.c@intel.com> >Subject: [PATCH v10 04/40] drm: header for i915 - MEI_HDCP interface > >Header defines the interface for the I915 and MEI_HDCP drivers. >This interface is specific to the usage of mei_hdcp from gen9+ platforms for ME >FW based HDCP2.2 services. > >And Generic HDCP2.2 protocol specific definitions are added at drm/drm_hdcp.h. > >v2: Commit msg is enhanced [Daniel] > >v3: i915_hdcp_comp_master is defined. > >Signed-off-by: Ramalingam C <ramalingam.c@intel.com> >Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Looks ok to me. Reviewed-by: Uma Shankar <uma.shankar@intel.com> >--- > include/drm/i915_mei_hdcp_interface.h | 148 >++++++++++++++++++++++++++++++++++ > 1 file changed, 148 insertions(+) > create mode 100644 include/drm/i915_mei_hdcp_interface.h > >diff --git a/include/drm/i915_mei_hdcp_interface.h >b/include/drm/i915_mei_hdcp_interface.h >new file mode 100644 >index 000000000000..bc5b0c71ed3c >--- /dev/null >+++ b/include/drm/i915_mei_hdcp_interface.h >@@ -0,0 +1,148 @@ >+/* SPDX-License-Identifier: (GPL-2.0+) */ >+/* >+ * Copyright © 2017-2018 Intel Corporation >+ * >+ * Authors: >+ * Ramalingam C <ramalingam.c@intel.com> */ >+ >+#ifndef _I915_MEI_HDCP_INTERFACE_H_ >+#define _I915_MEI_HDCP_INTERFACE_H_ >+ >+#include <linux/mutex.h> >+#include <linux/device.h> >+#include <drm/drm_hdcp.h> >+ >+/** >+ * enum hdcp_port_type - HDCP port implementation type defined by ME FW >+ * @HDCP_PORT_TYPE_INVALID: Invalid hdcp port type >+ * @HDCP_PORT_TYPE_INTEGRATED: In-Host HDCP2.x port >+ * @HDCP_PORT_TYPE_LSPCON: HDCP2.2 discrete wired Tx port with LSPCON >+ * (HDMI 2.0) solution >+ * @HDCP_PORT_TYPE_CPDP: HDCP2.2 discrete wired Tx port using the CPDP >(DP 1.3) >+ * solution >+ */ >+enum hdcp_port_type { >+ HDCP_PORT_TYPE_INVALID, >+ HDCP_PORT_TYPE_INTEGRATED, >+ HDCP_PORT_TYPE_LSPCON, >+ HDCP_PORT_TYPE_CPDP >+}; >+ >+/** >+ * enum hdcp_wired_protocol - HDCP adaptation used on the port >+ * @HDCP_PROTOCOL_INVALID: Invalid HDCP adaptation protocol >+ * @HDCP_PROTOCOL_HDMI: HDMI adaptation of HDCP used on the port >+ * @HDCP_PROTOCOL_DP: DP adaptation of HDCP used on the port */ enum >+hdcp_wired_protocol { >+ HDCP_PROTOCOL_INVALID, >+ HDCP_PROTOCOL_HDMI, >+ HDCP_PROTOCOL_DP >+}; >+ >+/** >+ * struct hdcp_port_data - intel specific HDCP port data >+ * @port: port 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 >+ * @seq_num_m: Count of RepeaterAuth_Stream_Manage msg propagated. >+ * Initialized to 0 on AKE_INIT. Incremented after every successful >+ * transmission of RepeaterAuth_Stream_Manage message. When it >rolls >+ * over re-Auth has to be triggered. >+ * @streams: struct hdcp2_streamid_type[k]. Defines the type and id for the >+ * streams >+ */ >+struct hdcp_port_data { >+ short int port; >+ u8 port_type; >+ u8 protocol; >+ u16 k; >+ u32 seq_num_m; >+ struct hdcp2_streamid_type *streams; >+}; >+ >+/** >+ * struct i915_hdcp_component_ops- ops for HDCP2.2 services. >+ * @owner: Module providing the ops >+ * @initiate_hdcp2_session: Initiate a Wired HDCP2.2 Tx Session. >+ * And Prepare AKE_Init. >+ * @verify_receiver_cert_prepare_km: Verify the Receiver Certificate >+ * AKE_Send_Cert and prepare >+ AKE_Stored_Km/AKE_No_Stored_Km >+ * @verify_hprime: Verify AKE_Send_H_prime >+ * @store_pairing_info: Store pairing info received >+ * @initiate_locality_check: Prepare LC_Init >+ * @verify_lprime: Verify lprime >+ * @get_session_key: Prepare SKE_Send_Eks >+ * @repeater_check_flow_prepare_ack: Validate the Downstream topology >+ * and prepare rep_ack >+ * @verify_mprime: Verify mprime >+ * @enable_hdcp_authentication: Mark a port as authenticated. >+ * @close_hdcp_session: Close the Wired HDCP Tx session per port. >+ * This also disables the authenticated state of the port. >+ */ >+struct i915_hdcp_component_ops { >+ /** >+ * @owner: mei_hdcp module >+ */ >+ struct module *owner; >+ >+ int (*initiate_hdcp2_session)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_ake_init *ake_data); >+ int (*verify_receiver_cert_prepare_km)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_ake_send_cert >+ *rx_cert, >+ bool *km_stored, >+ struct hdcp2_ake_no_stored_km >+ *ek_pub_km, >+ size_t *msg_sz); >+ int (*verify_hprime)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_ake_send_hprime *rx_hprime); >+ int (*store_pairing_info)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_ake_send_pairing_info >+ *pairing_info); >+ int (*initiate_locality_check)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_lc_init *lc_init_data); >+ int (*verify_lprime)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_lc_send_lprime *rx_lprime); >+ int (*get_session_key)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_ske_send_eks *ske_data); >+ int (*repeater_check_flow_prepare_ack)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct >hdcp2_rep_send_receiverid_list >+ *rep_topology, >+ struct hdcp2_rep_send_ack >+ > *rep_send_ack); >+ int (*verify_mprime)(struct device *dev, >+ struct hdcp_port_data *data, >+ struct hdcp2_rep_stream_ready *stream_ready); >+ int (*enable_hdcp_authentication)(struct device *dev, >+ struct hdcp_port_data *data); >+ int (*close_hdcp_session)(struct device *dev, >+ struct hdcp_port_data *data); >+}; >+ >+/** >+ * struct i915_hdcp_component_master - Used for communication between >+i915 >+ * and mei_hdcp drivers for the HDCP2.2 services >+ * @mei_dev: device that provide the HDCP2.2 service from MEI Bus. >+ * @hdcp_ops: Ops implemented by mei_hdcp driver, used by i915 driver. >+ */ >+struct i915_hdcp_comp_master { >+ struct device *mei_dev; >+ const struct i915_hdcp_component_ops *ops; >+ >+ /* To protect the above members. */ >+ struct mutex mutex; >+}; >+ >+#endif /* _I915_MEI_HDCP_INTERFACE_H_ */ >-- >2.7.4
diff --git a/include/drm/i915_mei_hdcp_interface.h b/include/drm/i915_mei_hdcp_interface.h new file mode 100644 index 000000000000..bc5b0c71ed3c --- /dev/null +++ b/include/drm/i915_mei_hdcp_interface.h @@ -0,0 +1,148 @@ +/* SPDX-License-Identifier: (GPL-2.0+) */ +/* + * Copyright © 2017-2018 Intel Corporation + * + * Authors: + * Ramalingam C <ramalingam.c@intel.com> + */ + +#ifndef _I915_MEI_HDCP_INTERFACE_H_ +#define _I915_MEI_HDCP_INTERFACE_H_ + +#include <linux/mutex.h> +#include <linux/device.h> +#include <drm/drm_hdcp.h> + +/** + * enum hdcp_port_type - HDCP port implementation type defined by ME FW + * @HDCP_PORT_TYPE_INVALID: Invalid hdcp port type + * @HDCP_PORT_TYPE_INTEGRATED: In-Host HDCP2.x port + * @HDCP_PORT_TYPE_LSPCON: HDCP2.2 discrete wired Tx port with LSPCON + * (HDMI 2.0) solution + * @HDCP_PORT_TYPE_CPDP: HDCP2.2 discrete wired Tx port using the CPDP (DP 1.3) + * solution + */ +enum hdcp_port_type { + HDCP_PORT_TYPE_INVALID, + HDCP_PORT_TYPE_INTEGRATED, + HDCP_PORT_TYPE_LSPCON, + HDCP_PORT_TYPE_CPDP +}; + +/** + * enum hdcp_wired_protocol - HDCP adaptation used on the port + * @HDCP_PROTOCOL_INVALID: Invalid HDCP adaptation protocol + * @HDCP_PROTOCOL_HDMI: HDMI adaptation of HDCP used on the port + * @HDCP_PROTOCOL_DP: DP adaptation of HDCP used on the port + */ +enum hdcp_wired_protocol { + HDCP_PROTOCOL_INVALID, + HDCP_PROTOCOL_HDMI, + HDCP_PROTOCOL_DP +}; + +/** + * struct hdcp_port_data - intel specific HDCP port data + * @port: port 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 + * @seq_num_m: Count of RepeaterAuth_Stream_Manage msg propagated. + * Initialized to 0 on AKE_INIT. Incremented after every successful + * transmission of RepeaterAuth_Stream_Manage message. When it rolls + * over re-Auth has to be triggered. + * @streams: struct hdcp2_streamid_type[k]. Defines the type and id for the + * streams + */ +struct hdcp_port_data { + short int port; + u8 port_type; + u8 protocol; + u16 k; + u32 seq_num_m; + struct hdcp2_streamid_type *streams; +}; + +/** + * struct i915_hdcp_component_ops- ops for HDCP2.2 services. + * @owner: Module providing the ops + * @initiate_hdcp2_session: Initiate a Wired HDCP2.2 Tx Session. + * And Prepare AKE_Init. + * @verify_receiver_cert_prepare_km: Verify the Receiver Certificate + * AKE_Send_Cert and prepare + AKE_Stored_Km/AKE_No_Stored_Km + * @verify_hprime: Verify AKE_Send_H_prime + * @store_pairing_info: Store pairing info received + * @initiate_locality_check: Prepare LC_Init + * @verify_lprime: Verify lprime + * @get_session_key: Prepare SKE_Send_Eks + * @repeater_check_flow_prepare_ack: Validate the Downstream topology + * and prepare rep_ack + * @verify_mprime: Verify mprime + * @enable_hdcp_authentication: Mark a port as authenticated. + * @close_hdcp_session: Close the Wired HDCP Tx session per port. + * This also disables the authenticated state of the port. + */ +struct i915_hdcp_component_ops { + /** + * @owner: mei_hdcp module + */ + struct module *owner; + + int (*initiate_hdcp2_session)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_init *ake_data); + int (*verify_receiver_cert_prepare_km)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_cert + *rx_cert, + bool *km_stored, + struct hdcp2_ake_no_stored_km + *ek_pub_km, + size_t *msg_sz); + int (*verify_hprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_hprime *rx_hprime); + int (*store_pairing_info)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_pairing_info + *pairing_info); + int (*initiate_locality_check)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_init *lc_init_data); + int (*verify_lprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_send_lprime *rx_lprime); + int (*get_session_key)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ske_send_eks *ske_data); + int (*repeater_check_flow_prepare_ack)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack + *rep_send_ack); + int (*verify_mprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_stream_ready *stream_ready); + int (*enable_hdcp_authentication)(struct device *dev, + struct hdcp_port_data *data); + int (*close_hdcp_session)(struct device *dev, + struct hdcp_port_data *data); +}; + +/** + * struct i915_hdcp_component_master - Used for communication between i915 + * and mei_hdcp drivers for the HDCP2.2 services + * @mei_dev: device that provide the HDCP2.2 service from MEI Bus. + * @hdcp_ops: Ops implemented by mei_hdcp driver, used by i915 driver. + */ +struct i915_hdcp_comp_master { + struct device *mei_dev; + const struct i915_hdcp_component_ops *ops; + + /* To protect the above members. */ + struct mutex mutex; +}; + +#endif /* _I915_MEI_HDCP_INTERFACE_H_ */