forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
184 lines
5.8 KiB
184 lines
5.8 KiB
/* SPDX-License-Identifier: (GPL-2.0+) */ |
|
/* |
|
* Copyright © 2017-2019 Intel Corporation |
|
* |
|
* Authors: |
|
* Ramalingam C <[email protected]> |
|
*/ |
|
|
|
#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 |
|
}; |
|
|
|
enum mei_fw_ddi { |
|
MEI_DDI_INVALID_PORT = 0x0, |
|
|
|
MEI_DDI_B = 1, |
|
MEI_DDI_C, |
|
MEI_DDI_D, |
|
MEI_DDI_E, |
|
MEI_DDI_F, |
|
MEI_DDI_A = 7, |
|
MEI_DDI_RANGE_END = MEI_DDI_A, |
|
}; |
|
|
|
/** |
|
* enum mei_fw_tc - ME Firmware defined index for transcoders |
|
* @MEI_INVALID_TRANSCODER: Index for Invalid transcoder |
|
* @MEI_TRANSCODER_EDP: Index for EDP Transcoder |
|
* @MEI_TRANSCODER_DSI0: Index for DSI0 Transcoder |
|
* @MEI_TRANSCODER_DSI1: Index for DSI1 Transcoder |
|
* @MEI_TRANSCODER_A: Index for Transcoder A |
|
* @MEI_TRANSCODER_B: Index for Transcoder B |
|
* @MEI_TRANSCODER_C: Index for Transcoder C |
|
* @MEI_TRANSCODER_D: Index for Transcoder D |
|
*/ |
|
enum mei_fw_tc { |
|
MEI_INVALID_TRANSCODER = 0x00, |
|
MEI_TRANSCODER_EDP, |
|
MEI_TRANSCODER_DSI0, |
|
MEI_TRANSCODER_DSI1, |
|
MEI_TRANSCODER_A = 0x10, |
|
MEI_TRANSCODER_B, |
|
MEI_TRANSCODER_C, |
|
MEI_TRANSCODER_D |
|
}; |
|
|
|
/** |
|
* struct hdcp_port_data - intel specific HDCP port data |
|
* @fw_ddi: ddi index as per ME FW |
|
* @fw_tc: transcoder index as per ME FW |
|
* @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 mei_fw_ddi fw_ddi; |
|
enum mei_fw_tc fw_tc; |
|
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_ */
|
|
|