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/*
* Copyright 2018 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
*
*/
#define MAX_NUM_DISPLAYS 24
#include "hdcp.h"
#include "amdgpu.h"
#include "hdcp_psp.h"
enum mod_hdcp_status mod_hdcp_remove_display_topology(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_dtm_shared_memory *dtm_cmd;
struct mod_hdcp_display *display = NULL;
uint8_t i;
dtm_cmd = (struct ta_dtm_shared_memory *)psp->dtm_context.dtm_shared_buf;
for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
if (hdcp->connection.displays[i].state == MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED) {
memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory));
display = &hdcp->connection.displays[i];
dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_UPDATE_V2;
dtm_cmd->dtm_in_message.topology_update_v2.display_handle = display->index;
dtm_cmd->dtm_in_message.topology_update_v2.is_active = 0;
dtm_cmd->dtm_status = TA_DTM_STATUS__GENERIC_FAILURE;
psp_dtm_invoke(psp, dtm_cmd->cmd_id);
if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS)
return MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE;
display->state = MOD_HDCP_DISPLAY_ACTIVE;
HDCP_TOP_REMOVE_DISPLAY_TRACE(hdcp, display->index);
}
}
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_add_display_topology(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_dtm_shared_memory *dtm_cmd;
struct mod_hdcp_display *display = NULL;
struct mod_hdcp_link *link = &hdcp->connection.link;
uint8_t i;
if (!psp->dtm_context.dtm_initialized) {
DRM_ERROR("Failed to add display topology, DTM TA is not initialized.");
return MOD_HDCP_STATUS_FAILURE;
}
dtm_cmd = (struct ta_dtm_shared_memory *)psp->dtm_context.dtm_shared_buf;
for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
if (hdcp->connection.displays[i].state == MOD_HDCP_DISPLAY_ACTIVE) {
display = &hdcp->connection.displays[i];
memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory));
dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_UPDATE_V2;
dtm_cmd->dtm_in_message.topology_update_v2.display_handle = display->index;
dtm_cmd->dtm_in_message.topology_update_v2.is_active = 1;
dtm_cmd->dtm_in_message.topology_update_v2.controller = display->controller;
dtm_cmd->dtm_in_message.topology_update_v2.ddc_line = link->ddc_line;
dtm_cmd->dtm_in_message.topology_update_v2.dig_be = link->dig_be;
dtm_cmd->dtm_in_message.topology_update_v2.dig_fe = display->dig_fe;
dtm_cmd->dtm_in_message.topology_update_v2.dp_mst_vcid = display->vc_id;
dtm_cmd->dtm_in_message.topology_update_v2.max_hdcp_supported_version =
TA_DTM_HDCP_VERSION_MAX_SUPPORTED__1_x;
dtm_cmd->dtm_status = TA_DTM_STATUS__GENERIC_FAILURE;
psp_dtm_invoke(psp, dtm_cmd->cmd_id);
if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS)
return MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE;
display->state = MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED;
HDCP_TOP_ADD_DISPLAY_TRACE(hdcp, display->index);
}
}
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct mod_hdcp_display *display = get_first_added_display(hdcp);
struct ta_hdcp_shared_memory *hdcp_cmd;
if (!psp->hdcp_context.hdcp_initialized) {
DRM_ERROR("Failed to create hdcp session. HDCP TA is not initialized.");
return MOD_HDCP_STATUS_FAILURE;
}
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_create_session.display_handle = display->index;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_CREATE_SESSION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE;
hdcp->auth.id = hdcp_cmd->out_msg.hdcp1_create_session.session_handle;
hdcp->auth.msg.hdcp1.ainfo = hdcp_cmd->out_msg.hdcp1_create_session.ainfo_primary;
memcpy(hdcp->auth.msg.hdcp1.aksv, hdcp_cmd->out_msg.hdcp1_create_session.aksv_primary,
sizeof(hdcp->auth.msg.hdcp1.aksv));
memcpy(hdcp->auth.msg.hdcp1.an, hdcp_cmd->out_msg.hdcp1_create_session.an_primary,
sizeof(hdcp->auth.msg.hdcp1.an));
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_destroy_session(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_destroy_session.session_handle = hdcp->auth.id;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_DESTROY_SESSION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE;
HDCP_TOP_HDCP1_DESTROY_SESSION_TRACE(hdcp);
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_validate_rx(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_first_part_authentication.session_handle = hdcp->auth.id;
memcpy(hdcp_cmd->in_msg.hdcp1_first_part_authentication.bksv_primary, hdcp->auth.msg.hdcp1.bksv,
TA_HDCP__HDCP1_KSV_SIZE);
hdcp_cmd->in_msg.hdcp1_first_part_authentication.r0_prime_primary = hdcp->auth.msg.hdcp1.r0p;
hdcp_cmd->in_msg.hdcp1_first_part_authentication.bcaps = hdcp->auth.msg.hdcp1.bcaps;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_FIRST_PART_AUTHENTICATION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE;
if (hdcp_cmd->out_msg.hdcp1_first_part_authentication.authentication_status ==
TA_HDCP_AUTHENTICATION_STATUS__HDCP1_FIRST_PART_COMPLETE) {
/* needs second part of authentication */
hdcp->connection.is_repeater = 1;
} else if (hdcp_cmd->out_msg.hdcp1_first_part_authentication.authentication_status ==
TA_HDCP_AUTHENTICATION_STATUS__HDCP1_AUTHENTICATED) {
hdcp->connection.is_repeater = 0;
} else
return MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE;
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_enable_encryption(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
struct mod_hdcp_display *display = get_first_added_display(hdcp);
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_enable_encryption.session_handle = hdcp->auth.id;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_ENABLE_ENCRYPTION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION;
if (!is_dp_mst_hdcp(hdcp)) {
display->state = MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED;
HDCP_HDCP1_ENABLED_TRACE(hdcp, display->index);
}
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_validate_ksvlist_vp(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_second_part_authentication.session_handle = hdcp->auth.id;
hdcp_cmd->in_msg.hdcp1_second_part_authentication.ksv_list_size = hdcp->auth.msg.hdcp1.ksvlist_size;
memcpy(hdcp_cmd->in_msg.hdcp1_second_part_authentication.ksv_list, hdcp->auth.msg.hdcp1.ksvlist,
hdcp->auth.msg.hdcp1.ksvlist_size);
memcpy(hdcp_cmd->in_msg.hdcp1_second_part_authentication.v_prime, hdcp->auth.msg.hdcp1.vp,
sizeof(hdcp->auth.msg.hdcp1.vp));
hdcp_cmd->in_msg.hdcp1_second_part_authentication.bstatus_binfo =
is_dp_hdcp(hdcp) ? hdcp->auth.msg.hdcp1.binfo_dp : hdcp->auth.msg.hdcp1.bstatus;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_SECOND_PART_AUTHENTICATION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE;
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_enable_dp_stream_encryption(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
int i = 0;
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
if (hdcp->connection.displays[i].state != MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED ||
hdcp->connection.displays[i].adjust.disable)
continue;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_enable_dp_stream_encryption.session_handle = hdcp->auth.id;
hdcp_cmd->in_msg.hdcp1_enable_dp_stream_encryption.display_handle = hdcp->connection.displays[i].index;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_ENABLE_DP_STREAM_ENCRYPTION;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE;
hdcp->connection.displays[i].state = MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED;
HDCP_HDCP1_ENABLED_TRACE(hdcp, hdcp->connection.displays[i].index);
}
return MOD_HDCP_STATUS_SUCCESS;
}
enum mod_hdcp_status mod_hdcp_hdcp1_link_maintenance(struct mod_hdcp *hdcp)
{
struct psp_context *psp = hdcp->config.psp.handle;
struct ta_hdcp_shared_memory *hdcp_cmd;
hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
hdcp_cmd->in_msg.hdcp1_get_encryption_status.session_handle = hdcp->auth.id;
hdcp_cmd->out_msg.hdcp1_get_encryption_status.protection_level = 0;
hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP1_GET_ENCRYPTION_STATUS;
psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
return MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE;
return (hdcp_cmd->out_msg.hdcp1_get_encryption_status.protection_level == 1)
? MOD_HDCP_STATUS_SUCCESS
: MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE;
}
enum mod_hdcp_status mod_hdcp_hdcp1_get_link_encryption_status(struct mod_hdcp *hdcp,
enum mod_hdcp_encryption_status *encryption_status)
{
*encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
if (mod_hdcp_hdcp1_link_maintenance(hdcp) != MOD_HDCP_STATUS_SUCCESS)
return MOD_HDCP_STATUS_FAILURE;
*encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP1_ON;
return MOD_HDCP_STATUS_SUCCESS;
}
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