-----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 itrolls
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 prepareAKE_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,structhdcp2_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