[PATCH] drm/amd/display: Guard calls to hdcp_ta and dtm_ta
Alex Deucher
alexdeucher at gmail.com
Tue Mar 31 17:37:40 UTC 2020
On Mon, Mar 30, 2020 at 6:36 PM Bhawanpreet Lakha
<Bhawanpreet.Lakha at amd.com> wrote:
>
> [Why]
> The buffer used when calling psp is a shared buffer. If we have multiple calls
> at the same time we can overwrite the buffer.
>
> [How]
> Add mutex to guard the shared buffer.
>
> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 +
> .../drm/amd/display/modules/hdcp/hdcp_psp.c | 420 +++++++++++-------
> 3 files changed, 257 insertions(+), 167 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> index dbaeffc4431e..9d587bc27663 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> @@ -888,6 +888,7 @@ static int psp_hdcp_load(struct psp_context *psp)
> if (!ret) {
> psp->hdcp_context.hdcp_initialized = true;
> psp->hdcp_context.session_id = cmd->resp.session_id;
> + mutex_init(&psp->hdcp_context.mutex);
> }
>
> kfree(cmd);
> @@ -1033,6 +1034,7 @@ static int psp_dtm_load(struct psp_context *psp)
> if (!ret) {
> psp->dtm_context.dtm_initialized = true;
> psp->dtm_context.session_id = cmd->resp.session_id;
> + mutex_init(&psp->dtm_context.mutex);
> }
>
> kfree(cmd);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
> index 297435c0c7c1..6a717fd5efc7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
> @@ -161,6 +161,7 @@ struct psp_hdcp_context {
> struct amdgpu_bo *hdcp_shared_bo;
> uint64_t hdcp_shared_mc_addr;
> void *hdcp_shared_buf;
> + struct mutex mutex;
> };
>
> struct psp_dtm_context {
> @@ -169,6 +170,7 @@ struct psp_dtm_context {
> struct amdgpu_bo *dtm_shared_bo;
> uint64_t dtm_shared_mc_addr;
> void *dtm_shared_buf;
> + struct mutex mutex;
> };
>
> #define MEM_TRAIN_SYSTEM_SIGNATURE 0x54534942
> diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
> index c2929815c3ee..aa147e171557 100644
> --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
> +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c
> @@ -51,12 +51,15 @@ enum mod_hdcp_status mod_hdcp_remove_display_from_topology(
> struct ta_dtm_shared_memory *dtm_cmd;
> struct mod_hdcp_display *display =
> get_active_display_at_index(hdcp, index);
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> dtm_cmd = (struct ta_dtm_shared_memory *)psp->dtm_context.dtm_shared_buf;
>
> if (!display || !is_display_added(display))
> return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
>
> + mutex_lock(&psp->dtm_context.mutex);
> +
> memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory));
>
> dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_UPDATE_V2;
> @@ -66,14 +69,15 @@ enum mod_hdcp_status mod_hdcp_remove_display_from_topology(
>
> psp_dtm_invoke(psp, dtm_cmd->cmd_id);
>
> - if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE;
> + if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE;
> + } else {
> + display->state = MOD_HDCP_DISPLAY_ACTIVE;
> + HDCP_TOP_REMOVE_DISPLAY_TRACE(hdcp, display->index);
> + }
>
> - display->state = MOD_HDCP_DISPLAY_ACTIVE;
> - HDCP_TOP_REMOVE_DISPLAY_TRACE(hdcp, display->index);
> -
> - return MOD_HDCP_STATUS_SUCCESS;
> -
> + mutex_unlock(&psp->dtm_context.mutex);
> + return status;
> }
> enum mod_hdcp_status mod_hdcp_add_display_to_topology(struct mod_hdcp *hdcp,
> uint8_t index)
> @@ -83,6 +87,7 @@ enum mod_hdcp_status mod_hdcp_add_display_to_topology(struct mod_hdcp *hdcp,
> struct mod_hdcp_display *display =
> get_active_display_at_index(hdcp, index);
> struct mod_hdcp_link *link = &hdcp->connection.link;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> if (!psp->dtm_context.dtm_initialized) {
> DRM_ERROR("Failed to add display topology, DTM TA is not initialized.");
> @@ -94,6 +99,7 @@ enum mod_hdcp_status mod_hdcp_add_display_to_topology(struct mod_hdcp *hdcp,
>
> dtm_cmd = (struct ta_dtm_shared_memory *)psp->dtm_context.dtm_shared_buf;
>
> + mutex_lock(&psp->dtm_context.mutex);
> memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory));
>
> dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_UPDATE_V2;
> @@ -113,13 +119,15 @@ enum mod_hdcp_status mod_hdcp_add_display_to_topology(struct mod_hdcp *hdcp,
>
> 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);
> + if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE;
> + } else {
> + display->state = MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED;
> + HDCP_TOP_ADD_DISPLAY_TRACE(hdcp, display->index);
> + }
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->dtm_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp)
> @@ -128,6 +136,7 @@ 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;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> if (!psp->hdcp_context.hdcp_initialized) {
> DRM_ERROR("Failed to create hdcp session. HDCP TA is not initialized.");
> @@ -135,6 +144,8 @@ enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp)
> }
>
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> +
> + mutex_lock(&psp->hdcp_context.mutex);
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> hdcp_cmd->in_msg.hdcp1_create_session.display_handle = display->index;
> @@ -144,16 +155,18 @@ enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp)
>
> hdcp->auth.id = hdcp_cmd->out_msg.hdcp1_create_session.session_handle;
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE;
> -
> - 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));
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE;
> + } else {
> + 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;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp1_destroy_session(struct mod_hdcp *hdcp)
> @@ -162,7 +175,9 @@ 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;
> uint8_t i = 0;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -171,27 +186,30 @@ enum mod_hdcp_status mod_hdcp_hdcp1_destroy_session(struct mod_hdcp *hdcp)
>
> 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);
> - for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
> - if (is_display_encryption_enabled(
> - &hdcp->displays[i])) {
> - hdcp->displays[i].state =
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE;
> + } else {
> + HDCP_TOP_HDCP1_DESTROY_SESSION_TRACE(hdcp);
> + for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
> + if (is_display_encryption_enabled(&hdcp->displays[i])) {
> + hdcp->displays[i].state =
> MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED;
> - HDCP_HDCP1_DISABLED_TRACE(hdcp,
> - hdcp->displays[i].index);
> - }
> + HDCP_HDCP1_DISABLED_TRACE(
> + hdcp, hdcp->displays[i].index);
> + }
> + }
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> 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;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -206,10 +224,9 @@ enum mod_hdcp_status mod_hdcp_hdcp1_validate_rx(struct mod_hdcp *hdcp)
>
> 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 ==
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE;
> + } else 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;
> @@ -219,12 +236,12 @@ enum mod_hdcp_status mod_hdcp_hdcp1_validate_rx(struct mod_hdcp *hdcp)
> } else if (hdcp_cmd->out_msg.hdcp1_first_part_authentication.authentication_status ==
> TA_HDCP_AUTHENTICATION_STATUS__HDCP1_KSV_REVOKED) {
> hdcp->connection.is_hdcp1_revoked = 1;
> - return MOD_HDCP_STATUS_HDCP1_BKSV_REVOKED;
> + status = MOD_HDCP_STATUS_HDCP1_BKSV_REVOKED;
> } else
> - return MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE;
> -
> + status = MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE;
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp1_enable_encryption(struct mod_hdcp *hdcp)
> @@ -232,7 +249,9 @@ 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);
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -241,14 +260,15 @@ enum mod_hdcp_status mod_hdcp_hdcp1_enable_encryption(struct mod_hdcp *hdcp)
>
> 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)) {
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION;
> + } else 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;
> +
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp1_validate_ksvlist_vp(struct mod_hdcp *hdcp)
> @@ -257,6 +277,7 @@ enum mod_hdcp_status mod_hdcp_hdcp1_validate_ksvlist_vp(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -287,6 +308,7 @@ enum mod_hdcp_status mod_hdcp_hdcp1_validate_ksvlist_vp(struct mod_hdcp *hdcp)
> status = MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE;
> }
>
> + mutex_unlock(&psp->hdcp_context.mutex);
> return status;
> }
>
> @@ -296,7 +318,9 @@ enum mod_hdcp_status mod_hdcp_hdcp1_enable_dp_stream_encryption(struct mod_hdcp
> struct psp_context *psp = hdcp->config.psp.handle;
> struct ta_hdcp_shared_memory *hdcp_cmd;
> int i = 0;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
>
> for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
> @@ -313,21 +337,26 @@ enum mod_hdcp_status mod_hdcp_hdcp1_enable_dp_stream_encryption(struct mod_hdcp
>
> 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;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE;
> + break;
> + }
>
> hdcp->displays[i].state = MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED;
> HDCP_HDCP1_ENABLED_TRACE(hdcp, hdcp->displays[i].index);
> }
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> 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;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
>
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
> @@ -339,12 +368,12 @@ enum mod_hdcp_status mod_hdcp_hdcp1_link_maintenance(struct mod_hdcp *hdcp)
>
> 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;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS ||
> + hdcp_cmd->out_msg.hdcp1_get_encryption_status.protection_level != 1)
> + status = 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;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp1_get_link_encryption_status(struct mod_hdcp *hdcp,
> @@ -365,18 +394,22 @@ enum mod_hdcp_status mod_hdcp_hdcp2_create_session(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);
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
>
> 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));
> -
> if (!display)
> return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> +
> + 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.hdcp2_create_session_v2.display_handle = display->index;
>
> if (hdcp->connection.link.adjust.hdcp2.force_type == MOD_HDCP_FORCE_TYPE_0)
> @@ -393,12 +426,14 @@ enum mod_hdcp_status mod_hdcp_hdcp2_create_session(struct mod_hdcp *hdcp)
>
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE;
>
> - hdcp->auth.id = hdcp_cmd->out_msg.hdcp2_create_session_v2.session_handle;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE;
> + else
> + hdcp->auth.id = hdcp_cmd->out_msg.hdcp2_create_session_v2.session_handle;
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_destroy_session(struct mod_hdcp *hdcp)
> @@ -406,7 +441,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_destroy_session(struct mod_hdcp *hdcp)
> struct psp_context *psp = hdcp->config.psp.handle;
> struct ta_hdcp_shared_memory *hdcp_cmd;
> uint8_t i = 0;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -415,20 +452,21 @@ enum mod_hdcp_status mod_hdcp_hdcp2_destroy_session(struct mod_hdcp *hdcp)
>
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE;
> -
> - HDCP_TOP_HDCP2_DESTROY_SESSION_TRACE(hdcp);
> - for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
> - if (is_display_encryption_enabled(
> - &hdcp->displays[i])) {
> - hdcp->displays[i].state =
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE;
> + } else {
> + HDCP_TOP_HDCP2_DESTROY_SESSION_TRACE(hdcp);
> + for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
> + if (is_display_encryption_enabled(&hdcp->displays[i])) {
> + hdcp->displays[i].state =
> MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED;
> - HDCP_HDCP2_DISABLED_TRACE(hdcp,
> - hdcp->displays[i].index);
> - }
> + HDCP_HDCP2_DISABLED_TRACE(
> + hdcp, hdcp->displays[i].index);
> + }
> + }
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_prepare_ake_init(struct mod_hdcp *hdcp)
> @@ -437,7 +475,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_ake_init(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -452,12 +492,13 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_ake_init(struct mod_hdcp *hdcp)
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE;
> -
> - memcpy(&hdcp->auth.msg.hdcp2.ake_init[0], &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.ake_init));
> + status = MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE;
> + else
> + memcpy(&hdcp->auth.msg.hdcp2.ake_init[0], &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.ake_init));
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_validate_ake_cert(struct mod_hdcp *hdcp)
> @@ -466,7 +507,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_ake_cert(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -488,26 +531,32 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_ake_cert(struct mod_hdcp *hdcp)
>
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE;
> -
> - memcpy(hdcp->auth.msg.hdcp2.ake_no_stored_km, &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km));
> -
> - memcpy(hdcp->auth.msg.hdcp2.ake_stored_km,
> - &msg_out->prepare.transmitter_message[sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km)],
> - sizeof(hdcp->auth.msg.hdcp2.ake_stored_km));
> -
> - if (msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS) {
> - hdcp->connection.is_km_stored = msg_out->process.is_km_stored ? 1 : 0;
> - hdcp->connection.is_repeater = msg_out->process.is_repeater ? 1 : 0;
> - return MOD_HDCP_STATUS_SUCCESS;
> - } else if (msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED) {
> - hdcp->connection.is_hdcp2_revoked = 1;
> - return MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE;
> + } else {
> + memcpy(hdcp->auth.msg.hdcp2.ake_no_stored_km,
> + &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km));
> +
> + memcpy(hdcp->auth.msg.hdcp2.ake_stored_km,
> + &msg_out->prepare.transmitter_message[sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km)],
> + sizeof(hdcp->auth.msg.hdcp2.ake_stored_km));
> +
> + if (msg_out->process.msg1_status ==
> + TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS) {
> + hdcp->connection.is_km_stored =
> + msg_out->process.is_km_stored ? 1 : 0;
> + hdcp->connection.is_repeater =
> + msg_out->process.is_repeater ? 1 : 0;
> + status = MOD_HDCP_STATUS_SUCCESS;
> + } else if (msg_out->process.msg1_status ==
> + TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED) {
> + hdcp->connection.is_hdcp2_revoked = 1;
> + status = MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED;
> + }
> }
> -
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_validate_h_prime(struct mod_hdcp *hdcp)
> @@ -516,7 +565,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_h_prime(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -543,16 +594,15 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_h_prime(struct mod_hdcp *hdcp)
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE;
> -
> - if (msg_out->process.msg1_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE;
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE;
> + else if (msg_out->process.msg1_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE;
> else if (!hdcp->connection.is_km_stored &&
> - msg_out->process.msg2_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE;
> -
> + msg_out->process.msg2_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE;
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_prepare_lc_init(struct mod_hdcp *hdcp)
> @@ -561,7 +611,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_lc_init(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -577,12 +629,13 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_lc_init(struct mod_hdcp *hdcp)
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE;
> -
> - memcpy(hdcp->auth.msg.hdcp2.lc_init, &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.lc_init));
> + status = MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE;
> + else
> + memcpy(hdcp->auth.msg.hdcp2.lc_init, &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.lc_init));
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_validate_l_prime(struct mod_hdcp *hdcp)
> @@ -591,7 +644,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_l_prime(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -610,13 +665,12 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_l_prime(struct mod_hdcp *hdcp)
>
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE;
> -
> - if (msg_out->process.msg1_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS ||
> + msg_out->process.msg1_status != TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE;
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_prepare_eks(struct mod_hdcp *hdcp)
> @@ -625,7 +679,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_eks(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -642,20 +698,24 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_eks(struct mod_hdcp *hdcp)
> hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP2_PREPARE_PROCESS_AUTHENTICATION_MSG_V2;
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE;
> -
> - memcpy(hdcp->auth.msg.hdcp2.ske_eks, &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.ske_eks));
> - msg_out->prepare.msg1_desc.msg_size = sizeof(hdcp->auth.msg.hdcp2.ske_eks);
> -
> - if (is_dp_hdcp(hdcp)) {
> - memcpy(hdcp->auth.msg.hdcp2.content_stream_type_dp,
> - &msg_out->prepare.transmitter_message[sizeof(hdcp->auth.msg.hdcp2.ske_eks)],
> - sizeof(hdcp->auth.msg.hdcp2.content_stream_type_dp));
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE;
> + } else {
> + memcpy(hdcp->auth.msg.hdcp2.ske_eks,
> + &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.ske_eks));
> + msg_out->prepare.msg1_desc.msg_size =
> + sizeof(hdcp->auth.msg.hdcp2.ske_eks);
> +
> + if (is_dp_hdcp(hdcp)) {
> + memcpy(hdcp->auth.msg.hdcp2.content_stream_type_dp,
> + &msg_out->prepare.transmitter_message[sizeof(hdcp->auth.msg.hdcp2.ske_eks)],
> + sizeof(hdcp->auth.msg.hdcp2.content_stream_type_dp));
> + }
> }
> + mutex_unlock(&psp->hdcp_context.mutex);
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_enable_encryption(struct mod_hdcp *hdcp)
> @@ -663,27 +723,30 @@ enum mod_hdcp_status mod_hdcp_hdcp2_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));
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> if (!display)
> return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> +
> + 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.hdcp2_set_encryption.session_handle = hdcp->auth.id;
>
> hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP2_SET_ENCRYPTION;
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE;
> -
> - if (!is_dp_mst_hdcp(hdcp)) {
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE;
> + } else if (!is_dp_mst_hdcp(hdcp)) {
> display->state = MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED;
> HDCP_HDCP2_ENABLED_TRACE(hdcp, display->index);
> }
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_validate_rx_id_list(struct mod_hdcp *hdcp)
> @@ -692,6 +755,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_rx_id_list(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
> +
> + mutex_lock(&psp->hdcp_context.mutex);
>
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
> @@ -712,23 +778,26 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_rx_id_list(struct mod_hdcp *hdcp)
>
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE;
> -
> - memcpy(hdcp->auth.msg.hdcp2.repeater_auth_ack, &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack));
> -
> - if (msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS) {
> - hdcp->connection.is_km_stored = msg_out->process.is_km_stored ? 1 : 0;
> - hdcp->connection.is_repeater = msg_out->process.is_repeater ? 1 : 0;
> - return MOD_HDCP_STATUS_SUCCESS;
> - } else if (msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED) {
> - hdcp->connection.is_hdcp2_revoked = 1;
> - return MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_REVOKED;
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE;
> + } else {
> + memcpy(hdcp->auth.msg.hdcp2.repeater_auth_ack,
> + &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack));
> +
> + if (msg_out->process.msg1_status ==
> + TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS) {
> + hdcp->connection.is_km_stored = msg_out->process.is_km_stored ? 1 : 0;
> + hdcp->connection.is_repeater = msg_out->process.is_repeater ? 1 : 0;
> + status = MOD_HDCP_STATUS_SUCCESS;
> + } else if (msg_out->process.msg1_status ==
> + TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED) {
> + hdcp->connection.is_hdcp2_revoked = 1;
> + status = MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_REVOKED;
> + }
> }
> -
> -
> - return MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE;
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_enable_dp_stream_encryption(struct mod_hdcp *hdcp)
> @@ -737,7 +806,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_enable_dp_stream_encryption(struct mod_hdcp
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> uint8_t i;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -763,8 +834,13 @@ enum mod_hdcp_status mod_hdcp_hdcp2_enable_dp_stream_encryption(struct mod_hdcp
> HDCP_HDCP2_ENABLED_TRACE(hdcp, hdcp->displays[i].index);
> }
>
> - return (hdcp_cmd->hdcp_status == TA_HDCP_STATUS__SUCCESS) ? MOD_HDCP_STATUS_SUCCESS
> - : MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION;
> + if (hdcp_cmd->hdcp_status == TA_HDCP_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_SUCCESS;
> + else
> + status = MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION;
> +
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_prepare_stream_management(struct mod_hdcp *hdcp)
> @@ -774,7 +850,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_stream_management(struct mod_hdcp *h
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -789,15 +867,17 @@ enum mod_hdcp_status mod_hdcp_hdcp2_prepare_stream_management(struct mod_hdcp *h
> hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP2_PREPARE_PROCESS_AUTHENTICATION_MSG_V2;
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
> - return MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE;
> -
> - hdcp->auth.msg.hdcp2.stream_manage_size = msg_out->prepare.msg1_desc.msg_size;
> -
> - memcpy(hdcp->auth.msg.hdcp2.repeater_auth_stream_manage, &msg_out->prepare.transmitter_message[0],
> - sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_manage));
> + if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS) {
> + status = MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE;
> + } else {
> + hdcp->auth.msg.hdcp2.stream_manage_size = msg_out->prepare.msg1_desc.msg_size;
>
> - return MOD_HDCP_STATUS_SUCCESS;
> + memcpy(hdcp->auth.msg.hdcp2.repeater_auth_stream_manage,
> + &msg_out->prepare.transmitter_message[0],
> + sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_manage));
> + }
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_validate_stream_ready(struct mod_hdcp *hdcp)
> @@ -806,7 +886,9 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_stream_ready(struct mod_hdcp *hdcp)
> struct ta_hdcp_shared_memory *hdcp_cmd;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
> struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
> + enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
>
> + mutex_lock(&psp->hdcp_context.mutex);
> hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
> memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
>
> @@ -825,10 +907,14 @@ enum mod_hdcp_status mod_hdcp_hdcp2_validate_stream_ready(struct mod_hdcp *hdcp)
> hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP2_PREPARE_PROCESS_AUTHENTICATION_MSG_V2;
> psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
>
> - return (hdcp_cmd->hdcp_status == TA_HDCP_STATUS__SUCCESS) &&
> - (msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> - ? MOD_HDCP_STATUS_SUCCESS
> - : MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE;
> + if (hdcp_cmd->hdcp_status == TA_HDCP_STATUS__SUCCESS &&
> + msg_out->process.msg1_status == TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS)
> + status = MOD_HDCP_STATUS_SUCCESS;
> + else
> + status = MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE;
> +
> + mutex_unlock(&psp->hdcp_context.mutex);
> + return status;
> }
>
> enum mod_hdcp_status mod_hdcp_hdcp2_get_link_encryption_status(struct mod_hdcp *hdcp,
> --
> 2.17.1
>
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