| Message ID | 1550219730-17734-4-git-send-email-ramalingam.c@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: Implement HDCP2.2 | expand |
On Fri, Feb 15, 2019 at 02:04:58PM +0530, Ramalingam C wrote: > 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> [v2] > Reviewed-by: Uma Shankar <uma.shankar@intel.com> [v2] Merged to topic/mei-hdcp. Again with the subject prefix fixed to drm/i915: Thanks, Daniel > --- > include/drm/i915_mei_hdcp_interface.h | 149 ++++++++++++++++++++++++++++++++++ > 1 file changed, 149 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..8c344255146a > --- /dev/null > +++ b/include/drm/i915_mei_hdcp_interface.h > @@ -0,0 +1,149 @@ > +/* 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> > +#include <drm/i915_drm.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 { > + enum port 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..8c344255146a --- /dev/null +++ b/include/drm/i915_mei_hdcp_interface.h @@ -0,0 +1,149 @@ +/* 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> +#include <drm/i915_drm.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 { + enum port 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_ */