Commit 0f5b1144 authored by Suraj Kandpal's avatar Suraj Kandpal Committed by Uma Shankar
Browse files

drm/i915/hdcp: Move common message filling function to its own file 



Create a new file intel_hdcp_gsc_message that contain functions
which fill the hdcp messages we send to gsc cs this refactor will
help us reuse code for Xe later on

--v2
-add the missed file for proper build

--v3
-use forward declarations instead of #includes [Jani]

--v4
-move linux/err.h to intel_hdcp_gsc_message.c from
intel_hdcp_gsc_message.h [Jani]

--v5
-move linux include on top of drm includes [Uma]

Signed-off-by: default avatarSuraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Acked-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarUma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231009095537.653619-3-suraj.kandpal@intel.com
parent 99f106ad

drivers/gpu/drm/i915/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -279,6 +279,7 @@ i915-y += \ 
	display/intel_global_state.o \

	display/intel_hdcp.o \

	display/intel_hdcp_gsc.o \

	display/intel_hdcp_gsc_message.o \

	display/intel_hotplug.o \

	display/intel_hotplug_irq.o \

	display/intel_hti.o \

drivers/gpu/drm/i915/display/intel_hdcp_gsc.c

+17 −598

File changed.

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drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c

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+592 −0

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drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h

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/* SPDX-License-Identifier: MIT */

/*

 * Copyright © 2023 Intel Corporation

 */



#ifndef __INTEL_HDCP_GSC_MESSAGE_H__

#define __INTEL_HDCP_GSC_MESSAGE_H__



#include <linux/types.h>



struct device;

struct drm_i915_private;

struct hdcp_port_data;

struct hdcp2_ake_init;

struct hdcp2_ake_send_cert;

struct hdcp2_ake_no_stored_km;

struct hdcp2_ake_send_hprime;

struct hdcp2_ake_send_pairing_info;

struct hdcp2_lc_init;

struct hdcp2_lc_send_lprime;

struct hdcp2_ske_send_eks;

struct hdcp2_rep_send_receiverid_list;

struct hdcp2_rep_send_ack;

struct hdcp2_rep_stream_ready;



ssize_t intel_hdcp_gsc_msg_send(struct drm_i915_private *i915, u8 *msg_in,

				size_t msg_in_len, u8 *msg_out,

				size_t msg_out_len);

bool intel_hdcp_gsc_check_status(struct drm_i915_private *i915);

int

intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data *data,

				struct hdcp2_ake_init *ake_data);

int

intel_hdcp_gsc_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

intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data,

			     struct hdcp2_ake_send_hprime *rx_hprime);

int

intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data *data,

				  struct hdcp2_ake_send_pairing_info *pairing_info);

int

intel_hdcp_gsc_initiate_locality_check(struct device *dev,

				       struct hdcp_port_data *data,

				       struct hdcp2_lc_init *lc_init_data);

int

intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data,

			     struct hdcp2_lc_send_lprime *rx_lprime);

int intel_hdcp_gsc_get_session_key(struct device *dev,

				   struct hdcp_port_data *data,

				   struct hdcp2_ske_send_eks *ske_data);

int

intel_hdcp_gsc_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 intel_hdcp_gsc_verify_mprime(struct device *dev,

				 struct hdcp_port_data *data,

				 struct hdcp2_rep_stream_ready *stream_ready);

int intel_hdcp_gsc_enable_authentication(struct device *dev,

					 struct hdcp_port_data *data);

int

intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data *data);



#endif /* __INTEL_HDCP_GSC_MESSAGE_H__ */