linux/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c

/*
 * Copyright 2019 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include "hdcp.h"

static void push_error_status(struct mod_hdcp *hdcp,
		enum mod_hdcp_status status)
{ … }

static uint8_t is_cp_desired_hdcp1(struct mod_hdcp *hdcp)
{ … }

static uint8_t is_cp_desired_hdcp2(struct mod_hdcp *hdcp)
{ … }

static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
		struct mod_hdcp_event_context *event_ctx,
		union mod_hdcp_transition_input *input)
{ … }

static enum mod_hdcp_status transition(struct mod_hdcp *hdcp,
		struct mod_hdcp_event_context *event_ctx,
		union mod_hdcp_transition_input *input,
		struct mod_hdcp_output *output)
{ … }

static enum mod_hdcp_status reset_authentication(struct mod_hdcp *hdcp,
		struct mod_hdcp_output *output)
{ … }

static enum mod_hdcp_status reset_connection(struct mod_hdcp *hdcp,
		struct mod_hdcp_output *output)
{ … }

static enum mod_hdcp_status update_display_adjustments(struct mod_hdcp *hdcp,
		struct mod_hdcp_display *display,
		struct mod_hdcp_display_adjustment *adj)
{ … }
/*
 * Implementation of functions in mod_hdcp.h
 */
size_t mod_hdcp_get_memory_size(void)
{ … }

enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp,
		struct mod_hdcp_config *config)
{ … }

enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp)
{ … }

enum mod_hdcp_status mod_hdcp_add_display(struct mod_hdcp *hdcp,
		struct mod_hdcp_link *link, struct mod_hdcp_display *display,
		struct mod_hdcp_output *output)
{ … }

enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp,
		uint8_t index, struct mod_hdcp_output *output)
{ … }

enum mod_hdcp_status mod_hdcp_update_display(struct mod_hdcp *hdcp,
		uint8_t index,
		struct mod_hdcp_link_adjustment *link_adjust,
		struct mod_hdcp_display_adjustment *display_adjust,
		struct mod_hdcp_output *output)
{ … }

enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp,
		uint8_t index, struct mod_hdcp_display_query *query)
{ … }

enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp,
		struct mod_hdcp_output *output)
{ … }

enum mod_hdcp_status mod_hdcp_process_event(struct mod_hdcp *hdcp,
		enum mod_hdcp_event event, struct mod_hdcp_output *output)
{ … }

enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode(
		enum signal_type signal)
{ … }