[PATCH 10/20] drm/amd/display: Add HDCP module
Bhawanpreet Lakha
Bhawanpreet.Lakha at amd.com
Tue Sep 10 19:05:44 UTC 2019
This module manages HDCP for amdgpu driver. The module behaves as a
state machine which handles the different authentication states of HDCP
The module is divided into 3 major components
+--------+
| Hdcp.c |
+--------+
Manages the state machine, sends the events to be executed and communicates
with the dm
+-----------+
|Execution.c|
+-----------+
This executes events based on the current state. Also generates
execution results as transition inputs
+------------+
|Transition.c|
+------------+
Decides the next state based on the input and makes requests to
hdcp.c to handle.
+-------------+
------> | Execution.c | ------
| +-------------+ |
| V
+----+ +--------+ +--------------+
| DM | -----> | Hdcp.c | <------------ | Transition.c |
+----+ <----- +--------+ +--------------+
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
Signed-off-by: Wenjing Liu <Wenjing.Liu at amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
drivers/gpu/drm/amd/display/Makefile | 7 +
drivers/gpu/drm/amd/display/dc/Makefile | 4 +
drivers/gpu/drm/amd/display/dc/hdcp/Makefile | 28 +
.../gpu/drm/amd/display/dc/hdcp/hdcp_msg.c | 324 +++++++++++
.../gpu/drm/amd/display/include/hdcp_types.h | 96 ++++
.../gpu/drm/amd/display/modules/hdcp/Makefile | 32 ++
.../gpu/drm/amd/display/modules/hdcp/hdcp.c | 426 ++++++++++++++
.../gpu/drm/amd/display/modules/hdcp/hdcp.h | 442 +++++++++++++++
.../display/modules/hdcp/hdcp1_execution.c | 531 ++++++++++++++++++
.../display/modules/hdcp/hdcp1_transition.c | 307 ++++++++++
.../drm/amd/display/modules/hdcp/hdcp_ddc.c | 305 ++++++++++
.../drm/amd/display/modules/hdcp/hdcp_log.c | 163 ++++++
.../drm/amd/display/modules/hdcp/hdcp_log.h | 139 +++++
.../drm/amd/display/modules/inc/mod_hdcp.h | 289 ++++++++++
14 files changed, 3093 insertions(+)
create mode 100644 drivers/gpu/drm/amd/display/dc/hdcp/Makefile
create mode 100644 drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.c
create mode 100644 drivers/gpu/drm/amd/display/include/hdcp_types.h
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/Makefile
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.c
create mode 100644 drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h
create mode 100644 drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h
diff --git a/drivers/gpu/drm/amd/display/Makefile b/drivers/gpu/drm/amd/display/Makefile
index 496cee000f10..36b3d6a5d04d 100644
--- a/drivers/gpu/drm/amd/display/Makefile
+++ b/drivers/gpu/drm/amd/display/Makefile
@@ -34,12 +34,19 @@ subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/modules/freesync
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/modules/color
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/modules/info_packet
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/modules/power
+ifdef CONFIG_DRM_AMD_DC_HDCP
+subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/modules/hdcp
+endif
#TODO: remove when Timing Sync feature is complete
subdir-ccflags-y += -DBUILD_FEATURE_TIMING_SYNC=0
DAL_LIBS = amdgpu_dm dc modules/freesync modules/color modules/info_packet modules/power
+ifdef CONFIG_DRM_AMD_DC_HDCP
+DAL_LIBS += modules/hdcp
+endif
+
AMD_DAL = $(addsuffix /Makefile, $(addprefix $(FULL_AMD_DISPLAY_PATH)/,$(DAL_LIBS)))
include $(AMD_DAL)
diff --git a/drivers/gpu/drm/amd/display/dc/Makefile b/drivers/gpu/drm/amd/display/dc/Makefile
index 627982cb15d2..a160512a2f04 100644
--- a/drivers/gpu/drm/amd/display/dc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/Makefile
@@ -48,6 +48,10 @@ DC_LIBS += dce110
DC_LIBS += dce100
DC_LIBS += dce80
+ifdef CONFIG_DRM_AMD_DC_HDCP
+DC_LIBS += hdcp
+endif
+
AMD_DC = $(addsuffix /Makefile, $(addprefix $(FULL_AMD_DISPLAY_PATH)/dc/,$(DC_LIBS)))
include $(AMD_DC)
diff --git a/drivers/gpu/drm/amd/display/dc/hdcp/Makefile b/drivers/gpu/drm/amd/display/dc/hdcp/Makefile
new file mode 100644
index 000000000000..4170b6eb9ec0
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/hdcp/Makefile
@@ -0,0 +1,28 @@
+# 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.
+#
+# Makefile for the 'hdcp' sub-component of DAL.
+#
+
+HDCP_MSG = hdcp_msg.o
+
+AMD_DAL_HDCP_MSG = $(addprefix $(AMDDALPATH)/dc/hdcp/,$(HDCP_MSG))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_HDCP_MSG)
diff --git a/drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.c b/drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.c
new file mode 100644
index 000000000000..093b2fb6ff5e
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.c
@@ -0,0 +1,324 @@
+/*
+ * 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 "dm_services.h"
+#include "dm_helpers.h"
+#include "include/hdcp_types.h"
+#include "include/i2caux_interface.h"
+#include "include/signal_types.h"
+#include "core_types.h"
+#include "dc_link_ddc.h"
+#include "link_hwss.h"
+
+#define DC_LOGGER \
+ link->ctx->logger
+#define HDCP14_KSV_SIZE 5
+#define HDCP14_MAX_KSV_FIFO_SIZE 127*HDCP14_KSV_SIZE
+
+static const bool hdcp_cmd_is_read[] = {
+ [HDCP_MESSAGE_ID_READ_BKSV] = true,
+ [HDCP_MESSAGE_ID_READ_RI_R0] = true,
+ [HDCP_MESSAGE_ID_READ_PJ] = true,
+ [HDCP_MESSAGE_ID_WRITE_AKSV] = false,
+ [HDCP_MESSAGE_ID_WRITE_AINFO] = false,
+ [HDCP_MESSAGE_ID_WRITE_AN] = false,
+ [HDCP_MESSAGE_ID_READ_VH_X] = true,
+ [HDCP_MESSAGE_ID_READ_VH_0] = true,
+ [HDCP_MESSAGE_ID_READ_VH_1] = true,
+ [HDCP_MESSAGE_ID_READ_VH_2] = true,
+ [HDCP_MESSAGE_ID_READ_VH_3] = true,
+ [HDCP_MESSAGE_ID_READ_VH_4] = true,
+ [HDCP_MESSAGE_ID_READ_BCAPS] = true,
+ [HDCP_MESSAGE_ID_READ_BSTATUS] = true,
+ [HDCP_MESSAGE_ID_READ_KSV_FIFO] = true,
+ [HDCP_MESSAGE_ID_READ_BINFO] = true,
+ [HDCP_MESSAGE_ID_HDCP2VERSION] = true,
+ [HDCP_MESSAGE_ID_RX_CAPS] = true,
+ [HDCP_MESSAGE_ID_WRITE_AKE_INIT] = false,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_CERT] = true,
+ [HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM] = false,
+ [HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM] = false,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME] = true,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO] = true,
+ [HDCP_MESSAGE_ID_WRITE_LC_INIT] = false,
+ [HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME] = true,
+ [HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS] = false,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST] = true,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK] = false,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE] = false,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY] = true,
+ [HDCP_MESSAGE_ID_READ_RXSTATUS] = true,
+ [HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE] = false
+};
+
+static const uint8_t hdcp_i2c_offsets[] = {
+ [HDCP_MESSAGE_ID_READ_BKSV] = 0x0,
+ [HDCP_MESSAGE_ID_READ_RI_R0] = 0x8,
+ [HDCP_MESSAGE_ID_READ_PJ] = 0xA,
+ [HDCP_MESSAGE_ID_WRITE_AKSV] = 0x10,
+ [HDCP_MESSAGE_ID_WRITE_AINFO] = 0x15,
+ [HDCP_MESSAGE_ID_WRITE_AN] = 0x18,
+ [HDCP_MESSAGE_ID_READ_VH_X] = 0x20,
+ [HDCP_MESSAGE_ID_READ_VH_0] = 0x20,
+ [HDCP_MESSAGE_ID_READ_VH_1] = 0x24,
+ [HDCP_MESSAGE_ID_READ_VH_2] = 0x28,
+ [HDCP_MESSAGE_ID_READ_VH_3] = 0x2C,
+ [HDCP_MESSAGE_ID_READ_VH_4] = 0x30,
+ [HDCP_MESSAGE_ID_READ_BCAPS] = 0x40,
+ [HDCP_MESSAGE_ID_READ_BSTATUS] = 0x41,
+ [HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x43,
+ [HDCP_MESSAGE_ID_READ_BINFO] = 0xFF,
+ [HDCP_MESSAGE_ID_HDCP2VERSION] = 0x50,
+ [HDCP_MESSAGE_ID_WRITE_AKE_INIT] = 0x60,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_CERT] = 0x80,
+ [HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM] = 0x60,
+ [HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM] = 0x60,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME] = 0x80,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO] = 0x80,
+ [HDCP_MESSAGE_ID_WRITE_LC_INIT] = 0x60,
+ [HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME] = 0x80,
+ [HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS] = 0x60,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST] = 0x80,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK] = 0x60,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE] = 0x60,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY] = 0x80,
+ [HDCP_MESSAGE_ID_READ_RXSTATUS] = 0x70
+};
+
+struct protection_properties {
+ bool supported;
+ bool (*process_transaction)(
+ struct dc_link *link,
+ struct hdcp_protection_message *message_info);
+};
+
+static const struct protection_properties non_supported_protection = {
+ .supported = false
+};
+
+static bool hdmi_14_process_transaction(
+ struct dc_link *link,
+ struct hdcp_protection_message *message_info)
+{
+ uint8_t *buff = NULL;
+ bool result;
+ const uint8_t hdcp_i2c_addr_link_primary = 0x3a; /* 0x74 >> 1*/
+ const uint8_t hdcp_i2c_addr_link_secondary = 0x3b; /* 0x76 >> 1*/
+ struct i2c_command i2c_command;
+ uint8_t offset = hdcp_i2c_offsets[message_info->msg_id];
+ struct i2c_payload i2c_payloads[] = {
+ { true, 0, 1, &offset },
+ /* actual hdcp payload, will be filled later, zeroed for now*/
+ { 0 }
+ };
+
+ switch (message_info->link) {
+ case HDCP_LINK_SECONDARY:
+ i2c_payloads[0].address = hdcp_i2c_addr_link_secondary;
+ i2c_payloads[1].address = hdcp_i2c_addr_link_secondary;
+ break;
+ case HDCP_LINK_PRIMARY:
+ default:
+ i2c_payloads[0].address = hdcp_i2c_addr_link_primary;
+ i2c_payloads[1].address = hdcp_i2c_addr_link_primary;
+ break;
+ }
+
+ if (hdcp_cmd_is_read[message_info->msg_id]) {
+ i2c_payloads[1].write = false;
+ i2c_command.number_of_payloads = ARRAY_SIZE(i2c_payloads);
+ i2c_payloads[1].length = message_info->length;
+ i2c_payloads[1].data = message_info->data;
+ } else {
+ i2c_command.number_of_payloads = 1;
+ buff = kzalloc(message_info->length + 1, GFP_KERNEL);
+
+ if (!buff)
+ return false;
+
+ buff[0] = offset;
+ memmove(&buff[1], message_info->data, message_info->length);
+ i2c_payloads[0].length = message_info->length + 1;
+ i2c_payloads[0].data = buff;
+ }
+
+ i2c_command.payloads = i2c_payloads;
+ i2c_command.engine = I2C_COMMAND_ENGINE_HW;//only HW
+ i2c_command.speed = link->ddc->ctx->dc->caps.i2c_speed_in_khz;
+
+ result = dm_helpers_submit_i2c(
+ link->ctx,
+ link,
+ &i2c_command);
+
+ if (buff)
+ kfree(buff);
+
+ return result;
+}
+
+static const struct protection_properties hdmi_14_protection = {
+ .supported = true,
+ .process_transaction = hdmi_14_process_transaction
+};
+
+static const uint32_t hdcp_dpcd_addrs[] = {
+ [HDCP_MESSAGE_ID_READ_BKSV] = 0x68000,
+ [HDCP_MESSAGE_ID_READ_RI_R0] = 0x68005,
+ [HDCP_MESSAGE_ID_READ_PJ] = 0xFFFFFFFF,
+ [HDCP_MESSAGE_ID_WRITE_AKSV] = 0x68007,
+ [HDCP_MESSAGE_ID_WRITE_AINFO] = 0x6803B,
+ [HDCP_MESSAGE_ID_WRITE_AN] = 0x6800c,
+ [HDCP_MESSAGE_ID_READ_VH_X] = 0x68014,
+ [HDCP_MESSAGE_ID_READ_VH_0] = 0x68014,
+ [HDCP_MESSAGE_ID_READ_VH_1] = 0x68018,
+ [HDCP_MESSAGE_ID_READ_VH_2] = 0x6801c,
+ [HDCP_MESSAGE_ID_READ_VH_3] = 0x68020,
+ [HDCP_MESSAGE_ID_READ_VH_4] = 0x68024,
+ [HDCP_MESSAGE_ID_READ_BCAPS] = 0x68028,
+ [HDCP_MESSAGE_ID_READ_BSTATUS] = 0x68029,
+ [HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x6802c,
+ [HDCP_MESSAGE_ID_READ_BINFO] = 0x6802a,
+ [HDCP_MESSAGE_ID_RX_CAPS] = 0x6921d,
+ [HDCP_MESSAGE_ID_WRITE_AKE_INIT] = 0x69000,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_CERT] = 0x6900b,
+ [HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM] = 0x69220,
+ [HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM] = 0x692a0,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME] = 0x692c0,
+ [HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO] = 0x692e0,
+ [HDCP_MESSAGE_ID_WRITE_LC_INIT] = 0x692f0,
+ [HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME] = 0x692f8,
+ [HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS] = 0x69318,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST] = 0x69330,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK] = 0x693e0,
+ [HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE] = 0x693f0,
+ [HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY] = 0x69473,
+ [HDCP_MESSAGE_ID_READ_RXSTATUS] = 0x69493,
+ [HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE] = 0x69494
+};
+
+static bool dpcd_access_helper(
+ struct dc_link *link,
+ uint32_t length,
+ uint8_t *data,
+ uint32_t dpcd_addr,
+ bool is_read)
+{
+ enum dc_status status;
+ uint32_t cur_length = 0;
+ uint32_t offset = 0;
+ uint32_t ksv_read_size = 0x6803b - 0x6802c;
+
+ /* Read KSV, need repeatedly handle */
+ if (dpcd_addr == 0x6802c) {
+ if (length % HDCP14_KSV_SIZE) {
+ DC_LOG_ERROR("%s: KsvFifo Size(%d) is not a multiple of HDCP14_KSV_SIZE(%d)\n",
+ __func__,
+ length,
+ HDCP14_KSV_SIZE);
+ }
+ if (length > HDCP14_MAX_KSV_FIFO_SIZE) {
+ DC_LOG_ERROR("%s: KsvFifo Size(%d) is greater than HDCP14_MAX_KSV_FIFO_SIZE(%d)\n",
+ __func__,
+ length,
+ HDCP14_MAX_KSV_FIFO_SIZE);
+ }
+
+ DC_LOG_ERROR("%s: Reading %d Ksv(s) from KsvFifo\n",
+ __func__,
+ length / HDCP14_KSV_SIZE);
+
+ while (length > 0) {
+ if (length > ksv_read_size) {
+ status = core_link_read_dpcd(
+ link,
+ dpcd_addr + offset,
+ data + offset,
+ ksv_read_size);
+
+ data += ksv_read_size;
+ length -= ksv_read_size;
+ } else {
+ status = core_link_read_dpcd(
+ link,
+ dpcd_addr + offset,
+ data + offset,
+ length);
+
+ data += length;
+ length = 0;
+ }
+
+ if (status != DC_OK)
+ return false;
+ }
+ } else {
+ while (length > 0) {
+ if (length > DEFAULT_AUX_MAX_DATA_SIZE)
+ cur_length = DEFAULT_AUX_MAX_DATA_SIZE;
+ else
+ cur_length = length;
+
+ if (is_read) {
+ status = core_link_read_dpcd(
+ link,
+ dpcd_addr + offset,
+ data + offset,
+ cur_length);
+ } else {
+ status = core_link_write_dpcd(
+ link,
+ dpcd_addr + offset,
+ data + offset,
+ cur_length);
+ }
+
+ if (status != DC_OK)
+ return false;
+
+ length -= cur_length;
+ offset += cur_length;
+ }
+ }
+ return true;
+}
+
+static bool dp_11_process_transaction(
+ struct dc_link *link,
+ struct hdcp_protection_message *message_info)
+{
+ return dpcd_access_helper(
+ link,
+ message_info->length,
+ message_info->data,
+ hdcp_dpcd_addrs[message_info->msg_id],
+ hdcp_cmd_is_read[message_info->msg_id]);
+}
+
+static const struct protection_properties dp_11_protection = {
+ .supported = true,
+ .process_transaction = dp_11_process_transaction
+};
+
diff --git a/drivers/gpu/drm/amd/display/include/hdcp_types.h b/drivers/gpu/drm/amd/display/include/hdcp_types.h
new file mode 100644
index 000000000000..f31e6befc8d6
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/include/hdcp_types.h
@@ -0,0 +1,96 @@
+/*
+* 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
+*
+*/
+
+#ifndef __DC_HDCP_TYPES_H__
+#define __DC_HDCP_TYPES_H__
+
+enum hdcp_message_id {
+ HDCP_MESSAGE_ID_INVALID = -1,
+
+ /* HDCP 1.4 */
+
+ HDCP_MESSAGE_ID_READ_BKSV = 0,
+ /* HDMI is called Ri', DP is called R0' */
+ HDCP_MESSAGE_ID_READ_RI_R0,
+ HDCP_MESSAGE_ID_READ_PJ,
+ HDCP_MESSAGE_ID_WRITE_AKSV,
+ HDCP_MESSAGE_ID_WRITE_AINFO,
+ HDCP_MESSAGE_ID_WRITE_AN,
+ HDCP_MESSAGE_ID_READ_VH_X,
+ HDCP_MESSAGE_ID_READ_VH_0,
+ HDCP_MESSAGE_ID_READ_VH_1,
+ HDCP_MESSAGE_ID_READ_VH_2,
+ HDCP_MESSAGE_ID_READ_VH_3,
+ HDCP_MESSAGE_ID_READ_VH_4,
+ HDCP_MESSAGE_ID_READ_BCAPS,
+ HDCP_MESSAGE_ID_READ_BSTATUS,
+ HDCP_MESSAGE_ID_READ_KSV_FIFO,
+ HDCP_MESSAGE_ID_READ_BINFO,
+
+ /* HDCP 2.2 */
+
+ HDCP_MESSAGE_ID_HDCP2VERSION,
+ HDCP_MESSAGE_ID_RX_CAPS,
+ HDCP_MESSAGE_ID_WRITE_AKE_INIT,
+ HDCP_MESSAGE_ID_READ_AKE_SEND_CERT,
+ HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM,
+ HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM,
+ HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME,
+ HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO,
+ HDCP_MESSAGE_ID_WRITE_LC_INIT,
+ HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME,
+ HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS,
+ HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST,
+ HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK,
+ HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE,
+ HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY,
+ HDCP_MESSAGE_ID_READ_RXSTATUS,
+ HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE,
+
+ HDCP_MESSAGE_ID_MAX
+};
+
+enum hdcp_version {
+ HDCP_Unknown = 0,
+ HDCP_VERSION_14,
+ HDCP_VERSION_22,
+};
+
+enum hdcp_link {
+ HDCP_LINK_PRIMARY,
+ HDCP_LINK_SECONDARY
+};
+
+struct hdcp_protection_message {
+ enum hdcp_version version;
+ /* relevant only for DVI */
+ enum hdcp_link link;
+ enum hdcp_message_id msg_id;
+ uint32_t length;
+ uint8_t max_retries;
+ uint8_t *data;
+};
+
+#endif
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/Makefile b/drivers/gpu/drm/amd/display/modules/hdcp/Makefile
new file mode 100644
index 000000000000..1c3c6d47973a
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/Makefile
@@ -0,0 +1,32 @@
+#
+# 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.
+#
+#
+# Makefile for the 'hdcp' sub-module of DAL.
+#
+
+HDCP = hdcp_ddc.o hdcp_log.o hdcp_psp.o hdcp.o \
+ hdcp1_execution.o hdcp1_transition.o
+
+AMD_DAL_HDCP = $(addprefix $(AMDDALPATH)/modules/hdcp/,$(HDCP))
+#$(info ************ DAL-HDCP_MAKEFILE ************)
+
+AMD_DISPLAY_FILES += $(AMD_DAL_HDCP)
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
new file mode 100644
index 000000000000..d7ac445dec6f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
@@ -0,0 +1,426 @@
+/*
+ * 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)
+{
+ struct mod_hdcp_trace *trace = &hdcp->connection.trace;
+
+ if (trace->error_count < MAX_NUM_OF_ERROR_TRACE) {
+ trace->errors[trace->error_count].status = status;
+ trace->errors[trace->error_count].state_id = hdcp->state.id;
+ trace->error_count++;
+ HDCP_ERROR_TRACE(hdcp, status);
+ }
+
+ hdcp->connection.hdcp1_retry_count++;
+}
+
+static uint8_t is_cp_desired_hdcp1(struct mod_hdcp *hdcp)
+{
+ int i, display_enabled = 0;
+
+ /* if all displays on the link are disabled, hdcp is not desired */
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
+ if (hdcp->connection.displays[i].state != MOD_HDCP_DISPLAY_INACTIVE &&
+ !hdcp->connection.displays[i].adjust.disable) {
+ display_enabled = 1;
+ break;
+ }
+ }
+
+ return (hdcp->connection.hdcp1_retry_count < MAX_NUM_OF_ATTEMPTS) &&
+ display_enabled && !hdcp->connection.link.adjust.hdcp1.disable;
+}
+
+static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ union mod_hdcp_transition_input *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (is_in_initialized_state(hdcp)) {
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+ /* initialize transition input */
+ memset(input, 0, sizeof(union mod_hdcp_transition_input));
+ } else if (is_in_cp_not_desired_state(hdcp)) {
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+ /* update topology event if hdcp is not desired */
+ status = mod_hdcp_add_display_topology(hdcp);
+ } else if (is_in_hdcp1_states(hdcp)) {
+ status = mod_hdcp_hdcp1_execution(hdcp, event_ctx, &input->hdcp1);
+ } else if (is_in_hdcp1_dp_states(hdcp)) {
+ status = mod_hdcp_hdcp1_dp_execution(hdcp,
+ event_ctx, &input->hdcp1);
+ }
+out:
+ return status;
+}
+
+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)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->unexpected_event)
+ goto out;
+
+ if (is_in_initialized_state(hdcp)) {
+ if (is_dp_hdcp(hdcp))
+ if (is_cp_desired_hdcp1(hdcp)) {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, D1_A0_DETERMINE_RX_HDCP_CAPABLE);
+ } else {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
+ }
+ else if (is_hdmi_dvi_sl_hdcp(hdcp))
+ if (is_cp_desired_hdcp1(hdcp)) {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, H1_A0_WAIT_FOR_ACTIVE_RX);
+ } else {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
+ }
+ else {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
+ }
+ } else if (is_in_cp_not_desired_state(hdcp)) {
+ increment_stay_counter(hdcp);
+ } else if (is_in_hdcp1_states(hdcp)) {
+ status = mod_hdcp_hdcp1_transition(hdcp,
+ event_ctx, &input->hdcp1, output);
+ } else if (is_in_hdcp1_dp_states(hdcp)) {
+ status = mod_hdcp_hdcp1_dp_transition(hdcp,
+ event_ctx, &input->hdcp1, output);
+ } else {
+ status = MOD_HDCP_STATUS_INVALID_STATE;
+ }
+out:
+ return status;
+}
+
+static enum mod_hdcp_status reset_authentication(struct mod_hdcp *hdcp,
+ struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (is_hdcp1(hdcp)) {
+ if (hdcp->auth.trans_input.hdcp1.create_session != UNKNOWN)
+ mod_hdcp_hdcp1_destroy_session(hdcp);
+
+ if (hdcp->auth.trans_input.hdcp1.add_topology == PASS) {
+ status = mod_hdcp_remove_display_topology(hdcp);
+ if (status != MOD_HDCP_STATUS_SUCCESS) {
+ output->callback_needed = 0;
+ output->watchdog_timer_needed = 0;
+ goto out;
+ }
+ }
+ HDCP_TOP_RESET_AUTH_TRACE(hdcp);
+ memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
+ memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
+ set_state_id(hdcp, output, HDCP_INITIALIZED);
+ } else if (is_in_cp_not_desired_state(hdcp)) {
+ status = mod_hdcp_remove_display_topology(hdcp);
+ if (status != MOD_HDCP_STATUS_SUCCESS) {
+ output->callback_needed = 0;
+ output->watchdog_timer_needed = 0;
+ goto out;
+ }
+ HDCP_TOP_RESET_AUTH_TRACE(hdcp);
+ memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
+ memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
+ set_state_id(hdcp, output, HDCP_INITIALIZED);
+ }
+
+out:
+ /* stop callback and watchdog requests from previous authentication*/
+ output->watchdog_timer_stop = 1;
+ output->callback_stop = 1;
+ return status;
+}
+
+static enum mod_hdcp_status reset_connection(struct mod_hdcp *hdcp,
+ struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ memset(output, 0, sizeof(struct mod_hdcp_output));
+
+ status = reset_authentication(hdcp, output);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ if (current_state(hdcp) != HDCP_UNINITIALIZED) {
+ HDCP_TOP_RESET_CONN_TRACE(hdcp);
+ set_state_id(hdcp, output, HDCP_UNINITIALIZED);
+ }
+ memset(&hdcp->connection, 0, sizeof(hdcp->connection));
+out:
+ return status;
+}
+
+/*
+ * Implementation of functions in mod_hdcp.h
+ */
+size_t mod_hdcp_get_memory_size(void)
+{
+ return sizeof(struct mod_hdcp);
+}
+
+enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp,
+ struct mod_hdcp_config *config)
+{
+ struct mod_hdcp_output output;
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ memset(hdcp, 0, sizeof(struct mod_hdcp));
+ memset(&output, 0, sizeof(output));
+ hdcp->config = *config;
+ HDCP_TOP_INTERFACE_TRACE(hdcp);
+ status = reset_connection(hdcp, &output);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ push_error_status(hdcp, status);
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_output output;
+
+ HDCP_TOP_INTERFACE_TRACE(hdcp);
+ memset(&output, 0, sizeof(output));
+ status = reset_connection(hdcp, &output);
+ if (status == MOD_HDCP_STATUS_SUCCESS)
+ memset(hdcp, 0, sizeof(struct mod_hdcp));
+ else
+ push_error_status(hdcp, status);
+ return status;
+}
+
+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 status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_display *display_container = NULL;
+
+ HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, display->index);
+ memset(output, 0, sizeof(struct mod_hdcp_output));
+
+ /* skip inactive display */
+ if (display->state != MOD_HDCP_DISPLAY_ACTIVE) {
+ status = MOD_HDCP_STATUS_SUCCESS;
+ goto out;
+ }
+
+ /* check existing display container */
+ if (get_active_display_at_index(hdcp, display->index)) {
+ status = MOD_HDCP_STATUS_SUCCESS;
+ goto out;
+ }
+
+ /* find an empty display container */
+ display_container = get_empty_display_container(hdcp);
+ if (!display_container) {
+ status = MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND;
+ goto out;
+ }
+
+ /* reset existing authentication status */
+ status = reset_authentication(hdcp, output);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ /* add display to connection */
+ hdcp->connection.link = *link;
+ *display_container = *display;
+
+ /* reset retry counters */
+ reset_retry_counts(hdcp);
+
+ /* reset error trace */
+ memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace));
+
+ /* request authentication */
+ if (current_state(hdcp) != HDCP_INITIALIZED)
+ set_state_id(hdcp, output, HDCP_INITIALIZED);
+ callback_in_ms(hdcp->connection.link.adjust.auth_delay * 1000, output);
+out:
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ push_error_status(hdcp, status);
+
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp,
+ uint8_t index, struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_display *display = NULL;
+
+ HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, index);
+ memset(output, 0, sizeof(struct mod_hdcp_output));
+
+ /* find display in connection */
+ display = get_active_display_at_index(hdcp, index);
+ if (!display) {
+ status = MOD_HDCP_STATUS_SUCCESS;
+ goto out;
+ }
+
+ /* stop current authentication */
+ status = reset_authentication(hdcp, output);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ /* remove display */
+ display->state = MOD_HDCP_DISPLAY_INACTIVE;
+
+ /* clear retry counters */
+ reset_retry_counts(hdcp);
+
+ /* reset error trace */
+ memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace));
+
+ /* request authentication for remaining displays*/
+ if (get_active_display_count(hdcp) > 0)
+ callback_in_ms(hdcp->connection.link.adjust.auth_delay * 1000,
+ output);
+out:
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ push_error_status(hdcp, status);
+ return status;
+}
+
+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 status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_display *display = NULL;
+
+ /* find display in connection */
+ display = get_active_display_at_index(hdcp, index);
+ if (!display) {
+ status = MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
+ goto out;
+ }
+
+ /* populate query */
+ query->link = &hdcp->connection.link;
+ query->display = display;
+ query->trace = &hdcp->connection.trace;
+ query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+
+ mod_hdcp_hdcp1_get_link_encryption_status(hdcp, &query->encryption_status);
+
+out:
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp,
+ struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ HDCP_TOP_INTERFACE_TRACE(hdcp);
+ status = reset_connection(hdcp, output);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ push_error_status(hdcp, status);
+
+ return status;
+}
+
+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_status exec_status, trans_status, reset_status, status;
+ struct mod_hdcp_event_context event_ctx;
+
+ HDCP_EVENT_TRACE(hdcp, event);
+ memset(output, 0, sizeof(struct mod_hdcp_output));
+ memset(&event_ctx, 0, sizeof(struct mod_hdcp_event_context));
+ event_ctx.event = event;
+
+ /* execute and transition */
+ exec_status = execution(hdcp, &event_ctx, &hdcp->auth.trans_input);
+ trans_status = transition(
+ hdcp, &event_ctx, &hdcp->auth.trans_input, output);
+ if (trans_status == MOD_HDCP_STATUS_SUCCESS) {
+ status = MOD_HDCP_STATUS_SUCCESS;
+ } else if (exec_status == MOD_HDCP_STATUS_SUCCESS) {
+ status = MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE;
+ push_error_status(hdcp, status);
+ } else {
+ status = exec_status;
+ push_error_status(hdcp, status);
+ }
+
+ /* reset authentication if needed */
+ if (trans_status == MOD_HDCP_STATUS_RESET_NEEDED) {
+ HDCP_FULL_DDC_TRACE(hdcp);
+ reset_status = reset_authentication(hdcp, output);
+ if (reset_status != MOD_HDCP_STATUS_SUCCESS)
+ push_error_status(hdcp, reset_status);
+ }
+ return status;
+}
+
+enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode(
+ enum signal_type signal)
+{
+ enum mod_hdcp_operation_mode mode = MOD_HDCP_MODE_OFF;
+
+ switch (signal) {
+ case SIGNAL_TYPE_DVI_SINGLE_LINK:
+ case SIGNAL_TYPE_HDMI_TYPE_A:
+ mode = MOD_HDCP_MODE_DEFAULT;
+ break;
+ case SIGNAL_TYPE_EDP:
+ case SIGNAL_TYPE_DISPLAY_PORT:
+ mode = MOD_HDCP_MODE_DP;
+ break;
+ case SIGNAL_TYPE_DISPLAY_PORT_MST:
+ mode = MOD_HDCP_MODE_DP_MST;
+ break;
+ default:
+ break;
+ };
+
+ return mode;
+}
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
new file mode 100644
index 000000000000..402bb7999093
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.h
@@ -0,0 +1,442 @@
+/*
+ * 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
+ *
+ */
+
+#ifndef HDCP_H_
+#define HDCP_H_
+
+#include "mod_hdcp.h"
+#include "hdcp_log.h"
+
+#define BCAPS_READY_MASK 0x20
+#define BCAPS_REPEATER_MASK 0x40
+#define BSTATUS_DEVICE_COUNT_MASK 0X007F
+#define BSTATUS_MAX_DEVS_EXCEEDED_MASK 0x0080
+#define BSTATUS_MAX_CASCADE_EXCEEDED_MASK 0x0800
+#define BCAPS_HDCP_CAPABLE_MASK_DP 0x01
+#define BCAPS_REPEATER_MASK_DP 0x02
+#define BSTATUS_READY_MASK_DP 0x01
+#define BSTATUS_R0_P_AVAILABLE_MASK_DP 0x02
+#define BSTATUS_LINK_INTEGRITY_FAILURE_MASK_DP 0x04
+#define BSTATUS_REAUTH_REQUEST_MASK_DP 0x08
+#define BINFO_DEVICE_COUNT_MASK_DP 0X007F
+#define BINFO_MAX_DEVS_EXCEEDED_MASK_DP 0x0080
+#define BINFO_MAX_CASCADE_EXCEEDED_MASK_DP 0x0800
+
+#define RXSTATUS_MSG_SIZE_MASK 0x03FF
+#define RXSTATUS_READY_MASK 0x0400
+#define RXSTATUS_REAUTH_REQUEST_MASK 0x0800
+#define RXIDLIST_DEVICE_COUNT_LOWER_MASK 0xf0
+#define RXIDLIST_DEVICE_COUNT_UPPER_MASK 0x01
+#define RXCAPS_BYTE0_HDCP_CAPABLE_MASK_DP 0x02
+#define RXSTATUS_READY_MASK_DP 0x0001
+#define RXSTATUS_H_P_AVAILABLE_MASK_DP 0x0002
+#define RXSTATUS_PAIRING_AVAILABLE_MASK_DP 0x0004
+#define RXSTATUS_REAUTH_REQUEST_MASK_DP 0x0008
+#define RXSTATUS_LINK_INTEGRITY_FAILURE_MASK_DP 0x0010
+
+enum mod_hdcp_trans_input_result {
+ UNKNOWN = 0,
+ PASS,
+ FAIL
+};
+
+struct mod_hdcp_transition_input_hdcp1 {
+ uint8_t bksv_read;
+ uint8_t bksv_validation;
+ uint8_t add_topology;
+ uint8_t create_session;
+ uint8_t an_write;
+ uint8_t aksv_write;
+ uint8_t ainfo_write;
+ uint8_t bcaps_read;
+ uint8_t r0p_read;
+ uint8_t rx_validation;
+ uint8_t encryption;
+ uint8_t link_maintenance;
+ uint8_t ready_check;
+ uint8_t bstatus_read;
+ uint8_t max_cascade_check;
+ uint8_t max_devs_check;
+ uint8_t device_count_check;
+ uint8_t ksvlist_read;
+ uint8_t vp_read;
+ uint8_t ksvlist_vp_validation;
+
+ uint8_t hdcp_capable_dp;
+ uint8_t binfo_read_dp;
+ uint8_t r0p_available_dp;
+ uint8_t link_integiry_check;
+ uint8_t reauth_request_check;
+ uint8_t stream_encryption_dp;
+};
+
+union mod_hdcp_transition_input {
+ struct mod_hdcp_transition_input_hdcp1 hdcp1;
+};
+
+struct mod_hdcp_message_hdcp1 {
+ uint8_t an[8];
+ uint8_t aksv[5];
+ uint8_t ainfo;
+ uint8_t bksv[5];
+ uint16_t r0p;
+ uint8_t bcaps;
+ uint16_t bstatus;
+ uint8_t ksvlist[635];
+ uint16_t ksvlist_size;
+ uint8_t vp[20];
+
+ uint16_t binfo_dp;
+};
+
+union mod_hdcp_message {
+ struct mod_hdcp_message_hdcp1 hdcp1;
+};
+
+struct mod_hdcp_auth_counters {
+ uint8_t stream_management_retry_count;
+};
+
+/* contains values per connection */
+struct mod_hdcp_connection {
+ struct mod_hdcp_link link;
+ struct mod_hdcp_display displays[MAX_NUM_OF_DISPLAYS];
+ uint8_t is_repeater;
+ uint8_t is_km_stored;
+ struct mod_hdcp_trace trace;
+ uint8_t hdcp1_retry_count;
+};
+
+/* contains values per authentication cycle */
+struct mod_hdcp_authentication {
+ uint32_t id;
+ union mod_hdcp_message msg;
+ union mod_hdcp_transition_input trans_input;
+ struct mod_hdcp_auth_counters count;
+};
+
+/* contains values per state change */
+struct mod_hdcp_state {
+ uint8_t id;
+ uint32_t stay_count;
+};
+
+/* per event in a state */
+struct mod_hdcp_event_context {
+ enum mod_hdcp_event event;
+ uint8_t rx_id_list_ready;
+ uint8_t unexpected_event;
+};
+
+struct mod_hdcp {
+ /* per link */
+ struct mod_hdcp_config config;
+ /* per connection */
+ struct mod_hdcp_connection connection;
+ /* per authentication attempt */
+ struct mod_hdcp_authentication auth;
+ /* per state in an authentication */
+ struct mod_hdcp_state state;
+ /* reserved memory buffer */
+ uint8_t buf[2025];
+};
+
+enum mod_hdcp_initial_state_id {
+ HDCP_UNINITIALIZED = 0x0,
+ HDCP_INITIAL_STATE_START = HDCP_UNINITIALIZED,
+ HDCP_INITIALIZED,
+ HDCP_CP_NOT_DESIRED,
+ HDCP_INITIAL_STATE_END = HDCP_CP_NOT_DESIRED
+};
+
+enum mod_hdcp_hdcp1_state_id {
+ HDCP1_STATE_START = HDCP_INITIAL_STATE_END,
+ H1_A0_WAIT_FOR_ACTIVE_RX,
+ H1_A1_EXCHANGE_KSVS,
+ H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER,
+ H1_A45_AUTHENICATED,
+ H1_A8_WAIT_FOR_READY,
+ H1_A9_READ_KSV_LIST,
+ HDCP1_STATE_END = H1_A9_READ_KSV_LIST
+};
+
+enum mod_hdcp_hdcp1_dp_state_id {
+ HDCP1_DP_STATE_START = HDCP1_STATE_END,
+ D1_A0_DETERMINE_RX_HDCP_CAPABLE,
+ D1_A1_EXCHANGE_KSVS,
+ D1_A23_WAIT_FOR_R0_PRIME,
+ D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER,
+ D1_A4_AUTHENICATED,
+ D1_A6_WAIT_FOR_READY,
+ D1_A7_READ_KSV_LIST,
+ HDCP1_DP_STATE_END = D1_A7_READ_KSV_LIST,
+};
+
+/* hdcp1 executions and transitions */
+typedef enum mod_hdcp_status (*mod_hdcp_action)(struct mod_hdcp *hdcp);
+uint8_t mod_hdcp_execute_and_set(
+ mod_hdcp_action func, uint8_t *flag,
+ enum mod_hdcp_status *status, struct mod_hdcp *hdcp, char *str);
+enum mod_hdcp_status mod_hdcp_hdcp1_execution(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input);
+enum mod_hdcp_status mod_hdcp_hdcp1_dp_execution(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input);
+enum mod_hdcp_status mod_hdcp_hdcp1_transition(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input,
+ struct mod_hdcp_output *output);
+enum mod_hdcp_status mod_hdcp_hdcp1_dp_transition(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input,
+ struct mod_hdcp_output *output);
+
+/* log functions */
+void mod_hdcp_dump_binary_message(uint8_t *msg, uint32_t msg_size,
+ uint8_t *buf, uint32_t buf_size);
+/* TODO: add adjustment log */
+
+/* psp functions */
+enum mod_hdcp_status mod_hdcp_add_display_topology(
+ struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_remove_display_topology(
+ struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_create_session(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_destroy_session(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_validate_rx(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_enable_encryption(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_validate_ksvlist_vp(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_enable_dp_stream_encryption(
+ struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_link_maintenance(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_hdcp1_get_link_encryption_status(struct mod_hdcp *hdcp,
+ enum mod_hdcp_encryption_status *encryption_status);
+/* ddc functions */
+enum mod_hdcp_status mod_hdcp_read_bksv(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_bcaps(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_bstatus(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_r0p(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_ksvlist(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_vp(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_binfo(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_aksv(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_ainfo(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_an(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_rxcaps(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_rxstatus(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_ake_cert(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_h_prime(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_pairing_info(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_l_prime(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_rx_id_list(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_read_stream_ready(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_ake_init(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_no_stored_km(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_stored_km(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_lc_init(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_eks(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_repeater_auth_ack(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_stream_manage(struct mod_hdcp *hdcp);
+enum mod_hdcp_status mod_hdcp_write_content_type(struct mod_hdcp *hdcp);
+
+/* hdcp version helpers */
+static inline uint8_t is_dp_hdcp(struct mod_hdcp *hdcp)
+{
+ return (hdcp->connection.link.mode == MOD_HDCP_MODE_DP ||
+ hdcp->connection.link.mode == MOD_HDCP_MODE_DP_MST);
+}
+
+static inline uint8_t is_dp_mst_hdcp(struct mod_hdcp *hdcp)
+{
+ return (hdcp->connection.link.mode == MOD_HDCP_MODE_DP_MST);
+}
+
+static inline uint8_t is_hdmi_dvi_sl_hdcp(struct mod_hdcp *hdcp)
+{
+ return (hdcp->connection.link.mode == MOD_HDCP_MODE_DEFAULT);
+}
+
+/* hdcp state helpers */
+static inline uint8_t current_state(struct mod_hdcp *hdcp)
+{
+ return hdcp->state.id;
+}
+
+static inline void set_state_id(struct mod_hdcp *hdcp,
+ struct mod_hdcp_output *output, uint8_t id)
+{
+ memset(&hdcp->state, 0, sizeof(hdcp->state));
+ hdcp->state.id = id;
+ /* callback timer should be reset per state */
+ output->callback_stop = 1;
+ output->watchdog_timer_stop = 1;
+ HDCP_NEXT_STATE_TRACE(hdcp, id, output);
+}
+
+static inline uint8_t is_in_hdcp1_states(struct mod_hdcp *hdcp)
+{
+ return (current_state(hdcp) > HDCP1_STATE_START &&
+ current_state(hdcp) <= HDCP1_STATE_END);
+}
+
+static inline uint8_t is_in_hdcp1_dp_states(struct mod_hdcp *hdcp)
+{
+ return (current_state(hdcp) > HDCP1_DP_STATE_START &&
+ current_state(hdcp) <= HDCP1_DP_STATE_END);
+}
+
+static inline uint8_t is_hdcp1(struct mod_hdcp *hdcp)
+{
+ return (is_in_hdcp1_states(hdcp) || is_in_hdcp1_dp_states(hdcp));
+}
+
+static inline uint8_t is_in_cp_not_desired_state(struct mod_hdcp *hdcp)
+{
+ return current_state(hdcp) == HDCP_CP_NOT_DESIRED;
+}
+
+static inline uint8_t is_in_initialized_state(struct mod_hdcp *hdcp)
+{
+ return current_state(hdcp) == HDCP_INITIALIZED;
+}
+
+/* transition operation helpers */
+static inline void increment_stay_counter(struct mod_hdcp *hdcp)
+{
+ hdcp->state.stay_count++;
+}
+
+static inline void fail_and_restart_in_ms(uint16_t time,
+ enum mod_hdcp_status *status,
+ struct mod_hdcp_output *output)
+{
+ output->callback_needed = 1;
+ output->callback_delay = time;
+ output->watchdog_timer_needed = 0;
+ output->watchdog_timer_delay = 0;
+ *status = MOD_HDCP_STATUS_RESET_NEEDED;
+}
+
+static inline void callback_in_ms(uint16_t time, struct mod_hdcp_output *output)
+{
+ output->callback_needed = 1;
+ output->callback_delay = time;
+}
+
+static inline void set_watchdog_in_ms(struct mod_hdcp *hdcp, uint16_t time,
+ struct mod_hdcp_output *output)
+{
+ output->watchdog_timer_needed = 1;
+ output->watchdog_timer_delay = time;
+}
+
+/* connection topology helpers */
+static inline uint8_t is_display_active(struct mod_hdcp_display *display)
+{
+ return display->state >= MOD_HDCP_DISPLAY_ACTIVE;
+}
+
+static inline uint8_t is_display_added(struct mod_hdcp_display *display)
+{
+ return display->state >= MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED;
+}
+
+static inline uint8_t is_display_encryption_enabled(struct mod_hdcp_display *display)
+{
+ return display->state >= MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED;
+}
+
+static inline uint8_t get_active_display_count(struct mod_hdcp *hdcp)
+{
+ uint8_t added_count = 0;
+ uint8_t i;
+
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
+ if (is_display_active(&hdcp->connection.displays[i]))
+ added_count++;
+ return added_count;
+}
+
+static inline uint8_t get_added_display_count(struct mod_hdcp *hdcp)
+{
+ uint8_t added_count = 0;
+ uint8_t i;
+
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
+ if (is_display_added(&hdcp->connection.displays[i]))
+ added_count++;
+ return added_count;
+}
+
+static inline struct mod_hdcp_display *get_first_added_display(
+ struct mod_hdcp *hdcp)
+{
+ uint8_t i;
+ struct mod_hdcp_display *display = NULL;
+
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
+ if (is_display_added(&hdcp->connection.displays[i])) {
+ display = &hdcp->connection.displays[i];
+ break;
+ }
+ return display;
+}
+
+static inline struct mod_hdcp_display *get_active_display_at_index(
+ struct mod_hdcp *hdcp, uint8_t index)
+{
+ uint8_t i;
+ struct mod_hdcp_display *display = NULL;
+
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
+ if (hdcp->connection.displays[i].index == index &&
+ is_display_active(&hdcp->connection.displays[i])) {
+ display = &hdcp->connection.displays[i];
+ break;
+ }
+ return display;
+}
+
+static inline struct mod_hdcp_display *get_empty_display_container(
+ struct mod_hdcp *hdcp)
+{
+ uint8_t i;
+ struct mod_hdcp_display *display = NULL;
+
+ for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++)
+ if (!is_display_active(&hdcp->connection.displays[i])) {
+ display = &hdcp->connection.displays[i];
+ break;
+ }
+ return display;
+}
+
+static inline void reset_retry_counts(struct mod_hdcp *hdcp)
+{
+ hdcp->connection.hdcp1_retry_count = 0;
+}
+
+#endif /* HDCP_H_ */
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c
new file mode 100644
index 000000000000..9e7302eac299
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.c
@@ -0,0 +1,531 @@
+/*
+ * 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 inline enum mod_hdcp_status validate_bksv(struct mod_hdcp *hdcp)
+{
+ uint64_t n = *(uint64_t *)hdcp->auth.msg.hdcp1.bksv;
+ uint8_t count = 0;
+
+ while (n) {
+ count++;
+ n &= (n - 1);
+ }
+ return (count == 20) ? MOD_HDCP_STATUS_SUCCESS :
+ MOD_HDCP_STATUS_HDCP1_INVALID_BKSV;
+}
+
+static inline enum mod_hdcp_status check_ksv_ready(struct mod_hdcp *hdcp)
+{
+ if (is_dp_hdcp(hdcp))
+ return (hdcp->auth.msg.hdcp1.bstatus & BSTATUS_READY_MASK_DP) ?
+ MOD_HDCP_STATUS_SUCCESS :
+ MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY;
+ return (hdcp->auth.msg.hdcp1.bcaps & BCAPS_READY_MASK) ?
+ MOD_HDCP_STATUS_SUCCESS :
+ MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY;
+}
+
+static inline enum mod_hdcp_status check_hdcp_capable_dp(struct mod_hdcp *hdcp)
+{
+ return (hdcp->auth.msg.hdcp1.bcaps & BCAPS_HDCP_CAPABLE_MASK_DP) ?
+ MOD_HDCP_STATUS_SUCCESS :
+ MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE;
+}
+
+static inline enum mod_hdcp_status check_r0p_available_dp(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+ if (is_dp_hdcp(hdcp)) {
+ status = (hdcp->auth.msg.hdcp1.bstatus &
+ BSTATUS_R0_P_AVAILABLE_MASK_DP) ?
+ MOD_HDCP_STATUS_SUCCESS :
+ MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING;
+ } else {
+ status = MOD_HDCP_STATUS_INVALID_OPERATION;
+ }
+ return status;
+}
+
+static inline enum mod_hdcp_status check_link_integrity_dp(
+ struct mod_hdcp *hdcp)
+{
+ return (hdcp->auth.msg.hdcp1.bstatus &
+ BSTATUS_LINK_INTEGRITY_FAILURE_MASK_DP) ?
+ MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+}
+
+static inline enum mod_hdcp_status check_no_reauthentication_request_dp(
+ struct mod_hdcp *hdcp)
+{
+ return (hdcp->auth.msg.hdcp1.bstatus & BSTATUS_REAUTH_REQUEST_MASK_DP) ?
+ MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED :
+ MOD_HDCP_STATUS_SUCCESS;
+}
+
+static inline enum mod_hdcp_status check_no_max_cascade(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ if (is_dp_hdcp(hdcp))
+ status = (hdcp->auth.msg.hdcp1.binfo_dp &
+ BINFO_MAX_CASCADE_EXCEEDED_MASK_DP) ?
+ MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+ else
+ status = (hdcp->auth.msg.hdcp1.bstatus &
+ BSTATUS_MAX_CASCADE_EXCEEDED_MASK) ?
+ MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+ return status;
+}
+
+static inline enum mod_hdcp_status check_no_max_devs(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ if (is_dp_hdcp(hdcp))
+ status = (hdcp->auth.msg.hdcp1.binfo_dp &
+ BINFO_MAX_DEVS_EXCEEDED_MASK_DP) ?
+ MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+ else
+ status = (hdcp->auth.msg.hdcp1.bstatus &
+ BSTATUS_MAX_DEVS_EXCEEDED_MASK) ?
+ MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+ return status;
+}
+
+static inline uint8_t get_device_count(struct mod_hdcp *hdcp)
+{
+ return is_dp_hdcp(hdcp) ?
+ (hdcp->auth.msg.hdcp1.binfo_dp & BINFO_DEVICE_COUNT_MASK_DP) :
+ (hdcp->auth.msg.hdcp1.bstatus & BSTATUS_DEVICE_COUNT_MASK);
+}
+
+static inline enum mod_hdcp_status check_device_count(struct mod_hdcp *hdcp)
+{
+ /* device count must be greater than or equal to tracked hdcp displays */
+ return (get_device_count(hdcp) < get_added_display_count(hdcp)) ?
+ MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE :
+ MOD_HDCP_STATUS_SUCCESS;
+}
+
+static enum mod_hdcp_status wait_for_active_rx(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bksv,
+ &input->bksv_read, &status,
+ hdcp, "bksv_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bcaps,
+ &input->bcaps_read, &status,
+ hdcp, "bcaps_read"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status exchange_ksvs(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_add_display_topology,
+ &input->add_topology, &status,
+ hdcp, "add_topology"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_create_session,
+ &input->create_session, &status,
+ hdcp, "create_session"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_write_an,
+ &input->an_write, &status,
+ hdcp, "an_write"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_write_aksv,
+ &input->aksv_write, &status,
+ hdcp, "aksv_write"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bksv,
+ &input->bksv_read, &status,
+ hdcp, "bksv_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(validate_bksv,
+ &input->bksv_validation, &status,
+ hdcp, "bksv_validation"))
+ goto out;
+ if (hdcp->auth.msg.hdcp1.ainfo) {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_write_ainfo,
+ &input->ainfo_write, &status,
+ hdcp, "ainfo_write"))
+ goto out;
+ }
+out:
+ return status;
+}
+
+static enum mod_hdcp_status computations_validate_rx_test_for_repeater(
+ struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_r0p,
+ &input->r0p_read, &status,
+ hdcp, "r0p_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_validate_rx,
+ &input->rx_validation, &status,
+ hdcp, "rx_validation"))
+ goto out;
+ if (hdcp->connection.is_repeater) {
+ if (!hdcp->connection.link.adjust.hdcp1.postpone_encryption)
+ if (!mod_hdcp_execute_and_set(
+ mod_hdcp_hdcp1_enable_encryption,
+ &input->encryption, &status,
+ hdcp, "encryption"))
+ goto out;
+ } else {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_enable_encryption,
+ &input->encryption, &status,
+ hdcp, "encryption"))
+ goto out;
+ if (is_dp_mst_hdcp(hdcp))
+ if (!mod_hdcp_execute_and_set(
+ mod_hdcp_hdcp1_enable_dp_stream_encryption,
+ &input->stream_encryption_dp, &status,
+ hdcp, "stream_encryption_dp"))
+ goto out;
+ }
+out:
+ return status;
+}
+
+static enum mod_hdcp_status authenticated(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_link_maintenance,
+ &input->link_maintenance, &status,
+ hdcp, "link_maintenance"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status wait_for_ready(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK &&
+ event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
+ event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (is_dp_hdcp(hdcp)) {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
+ &input->bstatus_read, &status,
+ hdcp, "bstatus_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_link_integrity_dp,
+ &input->link_integiry_check, &status,
+ hdcp, "link_integiry_check"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_no_reauthentication_request_dp,
+ &input->reauth_request_check, &status,
+ hdcp, "reauth_request_check"))
+ goto out;
+ } else {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bcaps,
+ &input->bcaps_read, &status,
+ hdcp, "bcaps_read"))
+ goto out;
+ }
+ if (!mod_hdcp_execute_and_set(check_ksv_ready,
+ &input->ready_check, &status,
+ hdcp, "ready_check"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status read_ksv_list(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+ uint8_t device_count;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (is_dp_hdcp(hdcp)) {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_binfo,
+ &input->binfo_read_dp, &status,
+ hdcp, "binfo_read_dp"))
+ goto out;
+ } else {
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
+ &input->bstatus_read, &status,
+ hdcp, "bstatus_read"))
+ goto out;
+ }
+ if (!mod_hdcp_execute_and_set(check_no_max_cascade,
+ &input->max_cascade_check, &status,
+ hdcp, "max_cascade_check"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_no_max_devs,
+ &input->max_devs_check, &status,
+ hdcp, "max_devs_check"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_device_count,
+ &input->device_count_check, &status,
+ hdcp, "device_count_check"))
+ goto out;
+ device_count = get_device_count(hdcp);
+ hdcp->auth.msg.hdcp1.ksvlist_size = device_count*5;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_ksvlist,
+ &input->ksvlist_read, &status,
+ hdcp, "ksvlist_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_vp,
+ &input->vp_read, &status,
+ hdcp, "vp_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_validate_ksvlist_vp,
+ &input->ksvlist_vp_validation, &status,
+ hdcp, "ksvlist_vp_validation"))
+ goto out;
+ if (input->encryption != PASS)
+ if (!mod_hdcp_execute_and_set(mod_hdcp_hdcp1_enable_encryption,
+ &input->encryption, &status,
+ hdcp, "encryption"))
+ goto out;
+ if (is_dp_mst_hdcp(hdcp))
+ if (!mod_hdcp_execute_and_set(
+ mod_hdcp_hdcp1_enable_dp_stream_encryption,
+ &input->stream_encryption_dp, &status,
+ hdcp, "stream_encryption_dp"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status determine_rx_hdcp_capable_dp(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bcaps,
+ &input->bcaps_read, &status,
+ hdcp, "bcaps_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_hdcp_capable_dp,
+ &input->hdcp_capable_dp, &status,
+ hdcp, "hdcp_capable_dp"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status wait_for_r0_prime_dp(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CPIRQ &&
+ event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
+ &input->bstatus_read, &status,
+ hdcp, "bstatus_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_r0p_available_dp,
+ &input->r0p_available_dp, &status,
+ hdcp, "r0p_available_dp"))
+ goto out;
+out:
+ return status;
+}
+
+static enum mod_hdcp_status authenticated_dp(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ if (event_ctx->event != MOD_HDCP_EVENT_CPIRQ) {
+ event_ctx->unexpected_event = 1;
+ goto out;
+ }
+
+ if (!mod_hdcp_execute_and_set(mod_hdcp_read_bstatus,
+ &input->bstatus_read, &status,
+ hdcp, "bstatus_read"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_link_integrity_dp,
+ &input->link_integiry_check, &status,
+ hdcp, "link_integiry_check"))
+ goto out;
+ if (!mod_hdcp_execute_and_set(check_no_reauthentication_request_dp,
+ &input->reauth_request_check, &status,
+ hdcp, "reauth_request_check"))
+ goto out;
+out:
+ return status;
+}
+
+uint8_t mod_hdcp_execute_and_set(
+ mod_hdcp_action func, uint8_t *flag,
+ enum mod_hdcp_status *status, struct mod_hdcp *hdcp, char *str)
+{
+ *status = func(hdcp);
+ if (*status == MOD_HDCP_STATUS_SUCCESS && *flag != PASS) {
+ HDCP_INPUT_PASS_TRACE(hdcp, str);
+ *flag = PASS;
+ } else if (*status != MOD_HDCP_STATUS_SUCCESS && *flag != FAIL) {
+ HDCP_INPUT_FAIL_TRACE(hdcp, str);
+ *flag = FAIL;
+ }
+ return (*status == MOD_HDCP_STATUS_SUCCESS);
+}
+
+enum mod_hdcp_status mod_hdcp_hdcp1_execution(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ switch (current_state(hdcp)) {
+ case H1_A0_WAIT_FOR_ACTIVE_RX:
+ status = wait_for_active_rx(hdcp, event_ctx, input);
+ break;
+ case H1_A1_EXCHANGE_KSVS:
+ status = exchange_ksvs(hdcp, event_ctx, input);
+ break;
+ case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER:
+ status = computations_validate_rx_test_for_repeater(hdcp,
+ event_ctx, input);
+ break;
+ case H1_A45_AUTHENICATED:
+ status = authenticated(hdcp, event_ctx, input);
+ break;
+ case H1_A8_WAIT_FOR_READY:
+ status = wait_for_ready(hdcp, event_ctx, input);
+ break;
+ case H1_A9_READ_KSV_LIST:
+ status = read_ksv_list(hdcp, event_ctx, input);
+ break;
+ default:
+ status = MOD_HDCP_STATUS_INVALID_STATE;
+ break;
+ }
+
+ return status;
+}
+
+extern enum mod_hdcp_status mod_hdcp_hdcp1_dp_execution(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+
+ switch (current_state(hdcp)) {
+ case D1_A0_DETERMINE_RX_HDCP_CAPABLE:
+ status = determine_rx_hdcp_capable_dp(hdcp, event_ctx, input);
+ break;
+ case D1_A1_EXCHANGE_KSVS:
+ status = exchange_ksvs(hdcp, event_ctx, input);
+ break;
+ case D1_A23_WAIT_FOR_R0_PRIME:
+ status = wait_for_r0_prime_dp(hdcp, event_ctx, input);
+ break;
+ case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER:
+ status = computations_validate_rx_test_for_repeater(
+ hdcp, event_ctx, input);
+ break;
+ case D1_A4_AUTHENICATED:
+ status = authenticated_dp(hdcp, event_ctx, input);
+ break;
+ case D1_A6_WAIT_FOR_READY:
+ status = wait_for_ready(hdcp, event_ctx, input);
+ break;
+ case D1_A7_READ_KSV_LIST:
+ status = read_ksv_list(hdcp, event_ctx, input);
+ break;
+ default:
+ status = MOD_HDCP_STATUS_INVALID_STATE;
+ break;
+ }
+
+ return status;
+}
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
new file mode 100644
index 000000000000..1d187809b709
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
@@ -0,0 +1,307 @@
+/*
+ * 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"
+
+enum mod_hdcp_status mod_hdcp_hdcp1_transition(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input,
+ struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_connection *conn = &hdcp->connection;
+ struct mod_hdcp_link_adjustment *adjust = &hdcp->connection.link.adjust;
+
+ switch (current_state(hdcp)) {
+ case H1_A0_WAIT_FOR_ACTIVE_RX:
+ if (input->bksv_read != PASS || input->bcaps_read != PASS) {
+ /* 1A-04: repeatedly attempts on port access failure */
+ callback_in_ms(500, output);
+ increment_stay_counter(hdcp);
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, H1_A1_EXCHANGE_KSVS);
+ break;
+ case H1_A1_EXCHANGE_KSVS:
+ if (input->add_topology != PASS ||
+ input->create_session != PASS) {
+ /* out of sync with psp state */
+ adjust->hdcp1.disable = 1;
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->an_write != PASS ||
+ input->aksv_write != PASS ||
+ input->bksv_read != PASS ||
+ input->bksv_validation != PASS ||
+ input->ainfo_write == FAIL) {
+ /* 1A-05: consider invalid bksv a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ callback_in_ms(300, output);
+ set_state_id(hdcp, output,
+ H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER);
+ break;
+ case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER:
+ if (input->bcaps_read != PASS ||
+ input->r0p_read != PASS ||
+ input->rx_validation != PASS ||
+ (!conn->is_repeater && input->encryption != PASS)) {
+ /* 1A-06: consider invalid r0' a failure */
+ /* 1A-08: consider bksv listed in SRM a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ if (conn->is_repeater) {
+ callback_in_ms(0, output);
+ set_watchdog_in_ms(hdcp, 5000, output);
+ set_state_id(hdcp, output, H1_A8_WAIT_FOR_READY);
+ } else {
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, H1_A45_AUTHENICATED);
+ HDCP_FULL_DDC_TRACE(hdcp);
+ }
+ break;
+ case H1_A45_AUTHENICATED:
+ if (input->link_maintenance != PASS) {
+ /* 1A-07: consider invalid ri' a failure */
+ /* 1A-07a: consider read ri' not returned a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ callback_in_ms(500, output);
+ increment_stay_counter(hdcp);
+ break;
+ case H1_A8_WAIT_FOR_READY:
+ if (input->ready_check != PASS) {
+ if (event_ctx->event ==
+ MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
+ /* 1B-03: fail hdcp on ksv list READY timeout */
+ /* prevent black screen in next attempt */
+ adjust->hdcp1.postpone_encryption = 1;
+ fail_and_restart_in_ms(0, &status, output);
+ } else {
+ /* continue ksv list READY polling*/
+ callback_in_ms(500, output);
+ increment_stay_counter(hdcp);
+ }
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, H1_A9_READ_KSV_LIST);
+ break;
+ case H1_A9_READ_KSV_LIST:
+ if (input->bstatus_read != PASS ||
+ input->max_cascade_check != PASS ||
+ input->max_devs_check != PASS ||
+ input->device_count_check != PASS ||
+ input->ksvlist_read != PASS ||
+ input->vp_read != PASS ||
+ input->ksvlist_vp_validation != PASS ||
+ input->encryption != PASS) {
+ /* 1B-06: consider MAX_CASCADE_EXCEEDED a failure */
+ /* 1B-05: consider MAX_DEVS_EXCEEDED a failure */
+ /* 1B-04: consider invalid v' a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, H1_A45_AUTHENICATED);
+ HDCP_FULL_DDC_TRACE(hdcp);
+ break;
+ default:
+ status = MOD_HDCP_STATUS_INVALID_STATE;
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_hdcp1_dp_transition(struct mod_hdcp *hdcp,
+ struct mod_hdcp_event_context *event_ctx,
+ struct mod_hdcp_transition_input_hdcp1 *input,
+ struct mod_hdcp_output *output)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
+ struct mod_hdcp_connection *conn = &hdcp->connection;
+ struct mod_hdcp_link_adjustment *adjust = &hdcp->connection.link.adjust;
+
+ switch (current_state(hdcp)) {
+ case D1_A0_DETERMINE_RX_HDCP_CAPABLE:
+ if (input->bcaps_read != PASS) {
+ /* 1A-04: no authentication on bcaps read failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->hdcp_capable_dp != PASS) {
+ adjust->hdcp1.disable = 1;
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, D1_A1_EXCHANGE_KSVS);
+ break;
+ case D1_A1_EXCHANGE_KSVS:
+ if (input->add_topology != PASS ||
+ input->create_session != PASS) {
+ /* out of sync with psp state */
+ adjust->hdcp1.disable = 1;
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->an_write != PASS ||
+ input->aksv_write != PASS ||
+ input->bksv_read != PASS ||
+ input->bksv_validation != PASS ||
+ input->ainfo_write == FAIL) {
+ /* 1A-05: consider invalid bksv a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ set_watchdog_in_ms(hdcp, 100, output);
+ set_state_id(hdcp, output, D1_A23_WAIT_FOR_R0_PRIME);
+ break;
+ case D1_A23_WAIT_FOR_R0_PRIME:
+ if (input->bstatus_read != PASS) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->r0p_available_dp != PASS) {
+ if (event_ctx->event == MOD_HDCP_EVENT_WATCHDOG_TIMEOUT)
+ fail_and_restart_in_ms(0, &status, output);
+ else
+ increment_stay_counter(hdcp);
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER);
+ break;
+ case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER:
+ if (input->r0p_read != PASS) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->rx_validation != PASS) {
+ if (hdcp->state.stay_count < 2) {
+ /* allow 2 additional retries */
+ callback_in_ms(0, output);
+ increment_stay_counter(hdcp);
+ } else {
+ /*
+ * 1A-06: consider invalid r0' a failure
+ * after 3 attempts.
+ * 1A-08: consider bksv listed in SRM a failure
+ */
+ fail_and_restart_in_ms(0, &status, output);
+ }
+ break;
+ } else if ((!conn->is_repeater && input->encryption != PASS) ||
+ (!conn->is_repeater && is_dp_mst_hdcp(hdcp) && input->stream_encryption_dp != PASS)) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ if (conn->is_repeater) {
+ set_watchdog_in_ms(hdcp, 5000, output);
+ set_state_id(hdcp, output, D1_A6_WAIT_FOR_READY);
+ } else {
+ set_state_id(hdcp, output, D1_A4_AUTHENICATED);
+ HDCP_FULL_DDC_TRACE(hdcp);
+ }
+ break;
+ case D1_A4_AUTHENICATED:
+ if (input->link_integiry_check != PASS ||
+ input->reauth_request_check != PASS) {
+ /* 1A-07: restart hdcp on a link integrity failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ break;
+ case D1_A6_WAIT_FOR_READY:
+ if (input->link_integiry_check == FAIL ||
+ input->reauth_request_check == FAIL) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->ready_check != PASS) {
+ if (event_ctx->event ==
+ MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) {
+ /* 1B-04: fail hdcp on ksv list READY timeout */
+ /* prevent black screen in next attempt */
+ adjust->hdcp1.postpone_encryption = 1;
+ fail_and_restart_in_ms(0, &status, output);
+ } else {
+ increment_stay_counter(hdcp);
+ }
+ break;
+ }
+ callback_in_ms(0, output);
+ set_state_id(hdcp, output, D1_A7_READ_KSV_LIST);
+ break;
+ case D1_A7_READ_KSV_LIST:
+ if (input->binfo_read_dp != PASS ||
+ input->max_cascade_check != PASS ||
+ input->max_devs_check != PASS) {
+ /* 1B-06: consider MAX_DEVS_EXCEEDED a failure */
+ /* 1B-07: consider MAX_CASCADE_EXCEEDED a failure */
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->device_count_check != PASS) {
+ /*
+ * some slow dongle doesn't update
+ * device count as soon as downstream is connected.
+ * give it more time to react.
+ */
+ adjust->hdcp1.postpone_encryption = 1;
+ fail_and_restart_in_ms(1000, &status, output);
+ break;
+ } else if (input->ksvlist_read != PASS ||
+ input->vp_read != PASS) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ } else if (input->ksvlist_vp_validation != PASS) {
+ if (hdcp->state.stay_count < 2) {
+ /* allow 2 additional retries */
+ callback_in_ms(0, output);
+ increment_stay_counter(hdcp);
+ } else {
+ /*
+ * 1B-05: consider invalid v' a failure
+ * after 3 attempts.
+ */
+ fail_and_restart_in_ms(0, &status, output);
+ }
+ break;
+ } else if (input->encryption != PASS ||
+ (is_dp_mst_hdcp(hdcp) && input->stream_encryption_dp != PASS)) {
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+ set_state_id(hdcp, output, D1_A4_AUTHENICATED);
+ HDCP_FULL_DDC_TRACE(hdcp);
+ break;
+ default:
+ fail_and_restart_in_ms(0, &status, output);
+ break;
+ }
+
+ return status;
+}
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c
new file mode 100644
index 000000000000..e7baae059b85
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c
@@ -0,0 +1,305 @@
+/*
+ * 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"
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define HDCP_I2C_ADDR 0x3a /* 0x74 >> 1*/
+#define KSV_READ_SIZE 0xf /* 0x6803b - 0x6802c */
+#define HDCP_MAX_AUX_TRANSACTION_SIZE 16
+
+enum mod_hdcp_ddc_message_id {
+ MOD_HDCP_MESSAGE_ID_INVALID = -1,
+
+ /* HDCP 1.4 */
+
+ MOD_HDCP_MESSAGE_ID_READ_BKSV = 0,
+ MOD_HDCP_MESSAGE_ID_READ_RI_R0,
+ MOD_HDCP_MESSAGE_ID_WRITE_AKSV,
+ MOD_HDCP_MESSAGE_ID_WRITE_AINFO,
+ MOD_HDCP_MESSAGE_ID_WRITE_AN,
+ MOD_HDCP_MESSAGE_ID_READ_VH_X,
+ MOD_HDCP_MESSAGE_ID_READ_VH_0,
+ MOD_HDCP_MESSAGE_ID_READ_VH_1,
+ MOD_HDCP_MESSAGE_ID_READ_VH_2,
+ MOD_HDCP_MESSAGE_ID_READ_VH_3,
+ MOD_HDCP_MESSAGE_ID_READ_VH_4,
+ MOD_HDCP_MESSAGE_ID_READ_BCAPS,
+ MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
+ MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
+ MOD_HDCP_MESSAGE_ID_READ_BINFO,
+
+ MOD_HDCP_MESSAGE_ID_MAX
+};
+
+static const uint8_t hdcp_i2c_offsets[] = {
+ [MOD_HDCP_MESSAGE_ID_READ_BKSV] = 0x0,
+ [MOD_HDCP_MESSAGE_ID_READ_RI_R0] = 0x8,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AKSV] = 0x10,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AINFO] = 0x15,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AN] = 0x18,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_X] = 0x20,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_0] = 0x20,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_1] = 0x24,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_2] = 0x28,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_3] = 0x2C,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_4] = 0x30,
+ [MOD_HDCP_MESSAGE_ID_READ_BCAPS] = 0x40,
+ [MOD_HDCP_MESSAGE_ID_READ_BSTATUS] = 0x41,
+ [MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x43,
+ [MOD_HDCP_MESSAGE_ID_READ_BINFO] = 0xFF,
+};
+
+static const uint32_t hdcp_dpcd_addrs[] = {
+ [MOD_HDCP_MESSAGE_ID_READ_BKSV] = 0x68000,
+ [MOD_HDCP_MESSAGE_ID_READ_RI_R0] = 0x68005,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AKSV] = 0x68007,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AINFO] = 0x6803B,
+ [MOD_HDCP_MESSAGE_ID_WRITE_AN] = 0x6800c,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_X] = 0x68014,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_0] = 0x68014,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_1] = 0x68018,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_2] = 0x6801c,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_3] = 0x68020,
+ [MOD_HDCP_MESSAGE_ID_READ_VH_4] = 0x68024,
+ [MOD_HDCP_MESSAGE_ID_READ_BCAPS] = 0x68028,
+ [MOD_HDCP_MESSAGE_ID_READ_BSTATUS] = 0x68029,
+ [MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x6802c,
+ [MOD_HDCP_MESSAGE_ID_READ_BINFO] = 0x6802a,
+};
+
+static enum mod_hdcp_status read(struct mod_hdcp *hdcp,
+ enum mod_hdcp_ddc_message_id msg_id,
+ uint8_t *buf,
+ uint32_t buf_len)
+{
+ bool success = true;
+ uint32_t cur_size = 0;
+ uint32_t data_offset = 0;
+
+ if (is_dp_hdcp(hdcp)) {
+ while (buf_len > 0) {
+ cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE);
+ success = hdcp->config.ddc.funcs.read_dpcd(hdcp->config.ddc.handle,
+ hdcp_dpcd_addrs[msg_id] + data_offset,
+ buf + data_offset,
+ cur_size);
+
+ if (!success)
+ break;
+
+ buf_len -= cur_size;
+ data_offset += cur_size;
+ }
+ } else {
+ success = hdcp->config.ddc.funcs.read_i2c(
+ hdcp->config.ddc.handle,
+ HDCP_I2C_ADDR,
+ hdcp_i2c_offsets[msg_id],
+ buf,
+ (uint32_t)buf_len);
+ }
+
+ return success ? MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_DDC_FAILURE;
+}
+
+static enum mod_hdcp_status read_repeatedly(struct mod_hdcp *hdcp,
+ enum mod_hdcp_ddc_message_id msg_id,
+ uint8_t *buf,
+ uint32_t buf_len,
+ uint8_t read_size)
+{
+ enum mod_hdcp_status status = MOD_HDCP_STATUS_DDC_FAILURE;
+ uint32_t cur_size = 0;
+ uint32_t data_offset = 0;
+
+ while (buf_len > 0) {
+ cur_size = MIN(buf_len, read_size);
+ status = read(hdcp, msg_id, buf + data_offset, cur_size);
+
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ break;
+
+ buf_len -= cur_size;
+ data_offset += cur_size;
+ }
+
+ return status;
+}
+
+static enum mod_hdcp_status write(struct mod_hdcp *hdcp,
+ enum mod_hdcp_ddc_message_id msg_id,
+ uint8_t *buf,
+ uint32_t buf_len)
+{
+ bool success = true;
+ uint32_t cur_size = 0;
+ uint32_t data_offset = 0;
+
+ if (is_dp_hdcp(hdcp)) {
+ while (buf_len > 0) {
+ cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE);
+ success = hdcp->config.ddc.funcs.write_dpcd(
+ hdcp->config.ddc.handle,
+ hdcp_dpcd_addrs[msg_id] + data_offset,
+ buf + data_offset,
+ cur_size);
+
+ if (!success)
+ break;
+
+ buf_len -= cur_size;
+ data_offset += cur_size;
+ }
+ } else {
+ hdcp->buf[0] = hdcp_i2c_offsets[msg_id];
+ memmove(&hdcp->buf[1], buf, buf_len);
+ success = hdcp->config.ddc.funcs.write_i2c(
+ hdcp->config.ddc.handle,
+ HDCP_I2C_ADDR,
+ hdcp->buf,
+ (uint32_t)(buf_len+1));
+ }
+
+ return success ? MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_DDC_FAILURE;
+}
+
+enum mod_hdcp_status mod_hdcp_read_bksv(struct mod_hdcp *hdcp)
+{
+ return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BKSV,
+ hdcp->auth.msg.hdcp1.bksv,
+ sizeof(hdcp->auth.msg.hdcp1.bksv));
+}
+
+enum mod_hdcp_status mod_hdcp_read_bcaps(struct mod_hdcp *hdcp)
+{
+ return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BCAPS,
+ &hdcp->auth.msg.hdcp1.bcaps,
+ sizeof(hdcp->auth.msg.hdcp1.bcaps));
+}
+
+enum mod_hdcp_status mod_hdcp_read_bstatus(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ if (is_dp_hdcp(hdcp))
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
+ (uint8_t *)&hdcp->auth.msg.hdcp1.bstatus,
+ 1);
+ else
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
+ (uint8_t *)&hdcp->auth.msg.hdcp1.bstatus,
+ sizeof(hdcp->auth.msg.hdcp1.bstatus));
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_read_r0p(struct mod_hdcp *hdcp)
+{
+ return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_RI_R0,
+ (uint8_t *)&hdcp->auth.msg.hdcp1.r0p,
+ sizeof(hdcp->auth.msg.hdcp1.r0p));
+}
+
+/* special case, reading repeatedly at the same address, don't use read() */
+enum mod_hdcp_status mod_hdcp_read_ksvlist(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ if (is_dp_hdcp(hdcp))
+ status = read_repeatedly(hdcp, MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
+ hdcp->auth.msg.hdcp1.ksvlist,
+ hdcp->auth.msg.hdcp1.ksvlist_size,
+ KSV_READ_SIZE);
+ else
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
+ (uint8_t *)&hdcp->auth.msg.hdcp1.ksvlist,
+ hdcp->auth.msg.hdcp1.ksvlist_size);
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_read_vp(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_0,
+ &hdcp->auth.msg.hdcp1.vp[0], 4);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_1,
+ &hdcp->auth.msg.hdcp1.vp[4], 4);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_2,
+ &hdcp->auth.msg.hdcp1.vp[8], 4);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_3,
+ &hdcp->auth.msg.hdcp1.vp[12], 4);
+ if (status != MOD_HDCP_STATUS_SUCCESS)
+ goto out;
+
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_4,
+ &hdcp->auth.msg.hdcp1.vp[16], 4);
+out:
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_read_binfo(struct mod_hdcp *hdcp)
+{
+ enum mod_hdcp_status status;
+
+ if (is_dp_hdcp(hdcp))
+ status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BINFO,
+ (uint8_t *)&hdcp->auth.msg.hdcp1.binfo_dp,
+ sizeof(hdcp->auth.msg.hdcp1.binfo_dp));
+ else
+ status = MOD_HDCP_STATUS_INVALID_OPERATION;
+
+ return status;
+}
+
+enum mod_hdcp_status mod_hdcp_write_aksv(struct mod_hdcp *hdcp)
+{
+ return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKSV,
+ hdcp->auth.msg.hdcp1.aksv,
+ sizeof(hdcp->auth.msg.hdcp1.aksv));
+}
+
+enum mod_hdcp_status mod_hdcp_write_ainfo(struct mod_hdcp *hdcp)
+{
+ return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AINFO,
+ &hdcp->auth.msg.hdcp1.ainfo,
+ sizeof(hdcp->auth.msg.hdcp1.ainfo));
+}
+
+enum mod_hdcp_status mod_hdcp_write_an(struct mod_hdcp *hdcp)
+{
+ return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AN,
+ hdcp->auth.msg.hdcp1.an,
+ sizeof(hdcp->auth.msg.hdcp1.an));
+}
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.c
new file mode 100644
index 000000000000..d868f556d180
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.c
@@ -0,0 +1,163 @@
+/*
+ * 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"
+
+void mod_hdcp_dump_binary_message(uint8_t *msg, uint32_t msg_size,
+ uint8_t *buf, uint32_t buf_size)
+{
+ const uint8_t bytes_per_line = 16,
+ byte_size = 3,
+ newline_size = 1,
+ terminator_size = 1;
+ uint32_t line_count = msg_size / bytes_per_line,
+ trailing_bytes = msg_size % bytes_per_line;
+ uint32_t target_size = (byte_size * bytes_per_line + newline_size) * line_count +
+ byte_size * trailing_bytes + newline_size + terminator_size;
+ uint32_t buf_pos = 0;
+ uint32_t i = 0;
+
+ if (buf_size >= target_size) {
+ for (i = 0; i < msg_size; i++) {
+ if (i % bytes_per_line == 0)
+ buf[buf_pos++] = '\n';
+ sprintf(&buf[buf_pos], "%02X ", msg[i]);
+ buf_pos += byte_size;
+ }
+ buf[buf_pos++] = '\0';
+ }
+}
+
+char *mod_hdcp_status_to_str(int32_t status)
+{
+ switch (status) {
+ case MOD_HDCP_STATUS_SUCCESS:
+ return "MOD_HDCP_STATUS_SUCCESS";
+ case MOD_HDCP_STATUS_FAILURE:
+ return "MOD_HDCP_STATUS_FAILURE";
+ case MOD_HDCP_STATUS_RESET_NEEDED:
+ return "MOD_HDCP_STATUS_RESET_NEEDED";
+ case MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND:
+ return "MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND";
+ case MOD_HDCP_STATUS_DISPLAY_NOT_FOUND:
+ return "MOD_HDCP_STATUS_DISPLAY_NOT_FOUND";
+ case MOD_HDCP_STATUS_INVALID_STATE:
+ return "MOD_HDCP_STATUS_INVALID_STATE";
+ case MOD_HDCP_STATUS_NOT_IMPLEMENTED:
+ return "MOD_HDCP_STATUS_NOT_IMPLEMENTED";
+ case MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE:
+ return "MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE";
+ case MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE:
+ return "MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE";
+ case MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE:
+ return "MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE";
+ case MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE:
+ return "MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER:
+ return "MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER";
+ case MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE:
+ return "MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE";
+ case MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING:
+ return "MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING";
+ case MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY:
+ return "MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY";
+ case MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION:
+ return "MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION";
+ case MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED:
+ return "MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED";
+ case MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE:
+ return "MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE";
+ case MOD_HDCP_STATUS_HDCP1_INVALID_BKSV:
+ return "MOD_HDCP_STATUS_HDCP1_INVALID_BKSV";
+ case MOD_HDCP_STATUS_DDC_FAILURE:
+ return "MOD_HDCP_STATUS_DDC_FAILURE";
+ case MOD_HDCP_STATUS_INVALID_OPERATION:
+ return "MOD_HDCP_STATUS_INVALID_OPERATION";
+ default:
+ return "MOD_HDCP_STATUS_UNKNOWN";
+ }
+}
+
+char *mod_hdcp_state_id_to_str(int32_t id)
+{
+ switch (id) {
+ case HDCP_UNINITIALIZED:
+ return "HDCP_UNINITIALIZED";
+ case HDCP_INITIALIZED:
+ return "HDCP_INITIALIZED";
+ case HDCP_CP_NOT_DESIRED:
+ return "HDCP_CP_NOT_DESIRED";
+ case H1_A0_WAIT_FOR_ACTIVE_RX:
+ return "H1_A0_WAIT_FOR_ACTIVE_RX";
+ case H1_A1_EXCHANGE_KSVS:
+ return "H1_A1_EXCHANGE_KSVS";
+ case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER:
+ return "H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER";
+ case H1_A45_AUTHENICATED:
+ return "H1_A45_AUTHENICATED";
+ case H1_A8_WAIT_FOR_READY:
+ return "H1_A8_WAIT_FOR_READY";
+ case H1_A9_READ_KSV_LIST:
+ return "H1_A9_READ_KSV_LIST";
+ case D1_A0_DETERMINE_RX_HDCP_CAPABLE:
+ return "D1_A0_DETERMINE_RX_HDCP_CAPABLE";
+ case D1_A1_EXCHANGE_KSVS:
+ return "D1_A1_EXCHANGE_KSVS";
+ case D1_A23_WAIT_FOR_R0_PRIME:
+ return "D1_A23_WAIT_FOR_R0_PRIME";
+ case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER:
+ return "D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER";
+ case D1_A4_AUTHENICATED:
+ return "D1_A4_AUTHENICATED";
+ case D1_A6_WAIT_FOR_READY:
+ return "D1_A6_WAIT_FOR_READY";
+ case D1_A7_READ_KSV_LIST:
+ return "D1_A7_READ_KSV_LIST";
+ default:
+ return "UNKNOWN_STATE_ID";
+ };
+}
+
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h
new file mode 100644
index 000000000000..2fd0e0a893ef
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h
@@ -0,0 +1,139 @@
+/*
+ * 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
+ *
+ */
+
+#ifndef MOD_HDCP_LOG_H_
+#define MOD_HDCP_LOG_H_
+
+#ifdef CONFIG_DRM_AMD_DC_HDCP
+#define HDCP_LOG_ERR(hdcp, ...) DRM_ERROR(__VA_ARGS__)
+#define HDCP_LOG_VER(hdcp, ...) DRM_DEBUG_KMS(__VA_ARGS__)
+#define HDCP_LOG_FSM(hdcp, ...) DRM_DEBUG_KMS(__VA_ARGS__)
+#define HDCP_LOG_TOP(hdcp, ...) pr_debug("[HDCP_TOP]:"__VA_ARGS__)
+#define HDCP_LOG_DDC(hdcp, ...) pr_debug("[HDCP_DDC]:"__VA_ARGS__)
+#endif
+
+/* default logs */
+#define HDCP_ERROR_TRACE(hdcp, status) \
+ HDCP_LOG_ERR(hdcp, \
+ "[Link %d] ERROR %s IN STATE %s", \
+ hdcp->config.index, \
+ mod_hdcp_status_to_str(status), \
+ mod_hdcp_state_id_to_str(hdcp->state.id))
+#define HDCP_HDCP1_ENABLED_TRACE(hdcp, displayIndex) \
+ HDCP_LOG_VER(hdcp, \
+ "[Link %d] HDCP 1.4 enabled on display %d", \
+ hdcp->config.index, displayIndex)
+/* state machine logs */
+#define HDCP_REMOVE_DISPLAY_TRACE(hdcp, displayIndex) \
+ HDCP_LOG_FSM(hdcp, \
+ "[Link %d] HDCP_REMOVE_DISPLAY index %d", \
+ hdcp->config.index, displayIndex)
+#define HDCP_INPUT_PASS_TRACE(hdcp, str) \
+ HDCP_LOG_FSM(hdcp, \
+ "[Link %d]\tPASS %s", \
+ hdcp->config.index, str)
+#define HDCP_INPUT_FAIL_TRACE(hdcp, str) \
+ HDCP_LOG_FSM(hdcp, \
+ "[Link %d]\tFAIL %s", \
+ hdcp->config.index, str)
+#define HDCP_NEXT_STATE_TRACE(hdcp, id, output) do { \
+ if (output->watchdog_timer_needed) \
+ HDCP_LOG_FSM(hdcp, \
+ "[Link %d] > %s with %d ms watchdog", \
+ hdcp->config.index, \
+ mod_hdcp_state_id_to_str(id), output->watchdog_timer_delay); \
+ else \
+ HDCP_LOG_FSM(hdcp, \
+ "[Link %d] > %s", hdcp->config.index, \
+ mod_hdcp_state_id_to_str(id)); \
+} while (0)
+#define HDCP_TIMEOUT_TRACE(hdcp) \
+ HDCP_LOG_FSM(hdcp, "[Link %d] --> TIMEOUT", hdcp->config.index)
+#define HDCP_CPIRQ_TRACE(hdcp) \
+ HDCP_LOG_FSM(hdcp, "[Link %d] --> CPIRQ", hdcp->config.index)
+#define HDCP_EVENT_TRACE(hdcp, event) \
+ if (event == MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) \
+ HDCP_TIMEOUT_TRACE(hdcp); \
+ else if (event == MOD_HDCP_EVENT_CPIRQ) \
+ HDCP_CPIRQ_TRACE(hdcp)
+/* TODO: find some way to tell if logging is off to save time */
+#define HDCP_DDC_READ_TRACE(hdcp, msg_name, msg, msg_size) do { \
+ mod_hdcp_dump_binary_message(msg, msg_size, hdcp->buf, \
+ sizeof(hdcp->buf)); \
+ HDCP_LOG_DDC(hdcp, "[Link %d] Read %s%s", hdcp->config.index, \
+ msg_name, hdcp->buf); \
+} while (0)
+#define HDCP_DDC_WRITE_TRACE(hdcp, msg_name, msg, msg_size) do { \
+ mod_hdcp_dump_binary_message(msg, msg_size, hdcp->buf, \
+ sizeof(hdcp->buf)); \
+ HDCP_LOG_DDC(hdcp, "[Link %d] Write %s%s", \
+ hdcp->config.index, msg_name,\
+ hdcp->buf); \
+} while (0)
+#define HDCP_FULL_DDC_TRACE(hdcp) do { \
+ HDCP_DDC_READ_TRACE(hdcp, "BKSV", hdcp->auth.msg.hdcp1.bksv, \
+ sizeof(hdcp->auth.msg.hdcp1.bksv)); \
+ HDCP_DDC_READ_TRACE(hdcp, "BCAPS", &hdcp->auth.msg.hdcp1.bcaps, \
+ sizeof(hdcp->auth.msg.hdcp1.bcaps)); \
+ HDCP_DDC_WRITE_TRACE(hdcp, "AN", hdcp->auth.msg.hdcp1.an, \
+ sizeof(hdcp->auth.msg.hdcp1.an)); \
+ HDCP_DDC_WRITE_TRACE(hdcp, "AKSV", hdcp->auth.msg.hdcp1.aksv, \
+ sizeof(hdcp->auth.msg.hdcp1.aksv)); \
+ HDCP_DDC_WRITE_TRACE(hdcp, "AINFO", &hdcp->auth.msg.hdcp1.ainfo, \
+ sizeof(hdcp->auth.msg.hdcp1.ainfo)); \
+ HDCP_DDC_READ_TRACE(hdcp, "RI' / R0'", \
+ (uint8_t *)&hdcp->auth.msg.hdcp1.r0p, \
+ sizeof(hdcp->auth.msg.hdcp1.r0p)); \
+ HDCP_DDC_READ_TRACE(hdcp, "BINFO", \
+ (uint8_t *)&hdcp->auth.msg.hdcp1.binfo_dp, \
+ sizeof(hdcp->auth.msg.hdcp1.binfo_dp)); \
+ HDCP_DDC_READ_TRACE(hdcp, "KSVLIST", hdcp->auth.msg.hdcp1.ksvlist, \
+ hdcp->auth.msg.hdcp1.ksvlist_size); \
+ HDCP_DDC_READ_TRACE(hdcp, "V'", hdcp->auth.msg.hdcp1.vp, \
+ sizeof(hdcp->auth.msg.hdcp1.vp)); \
+} while (0)
+#define HDCP_TOP_ADD_DISPLAY_TRACE(hdcp, i) \
+ HDCP_LOG_TOP(hdcp, "[Link %d]\tadd display %d", \
+ hdcp->config.index, i)
+#define HDCP_TOP_REMOVE_DISPLAY_TRACE(hdcp, i) \
+ HDCP_LOG_TOP(hdcp, "[Link %d]\tremove display %d", \
+ hdcp->config.index, i)
+#define HDCP_TOP_HDCP1_DESTROY_SESSION_TRACE(hdcp) \
+ HDCP_LOG_TOP(hdcp, "[Link %d]\tdestroy hdcp1 session", \
+ hdcp->config.index)
+#define HDCP_TOP_RESET_AUTH_TRACE(hdcp) \
+ HDCP_LOG_TOP(hdcp, "[Link %d]\treset authentication", hdcp->config.index)
+#define HDCP_TOP_RESET_CONN_TRACE(hdcp) \
+ HDCP_LOG_TOP(hdcp, "[Link %d]\treset connection", hdcp->config.index)
+#define HDCP_TOP_INTERFACE_TRACE(hdcp) do { \
+ HDCP_LOG_TOP(hdcp, "\n"); \
+ HDCP_LOG_TOP(hdcp, "[Link %d] %s", hdcp->config.index, __func__); \
+} while (0)
+#define HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, i) do { \
+ HDCP_LOG_TOP(hdcp, "\n"); \
+ HDCP_LOG_TOP(hdcp, "[Link %d] %s display %d", hdcp->config.index, __func__, i); \
+} while (0)
+
+#endif // MOD_HDCP_LOG_H_
diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h b/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h
new file mode 100644
index 000000000000..dea21702edff
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h
@@ -0,0 +1,289 @@
+/*
+ * 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
+ *
+ */
+
+#ifndef MOD_HDCP_H_
+#define MOD_HDCP_H_
+
+#include "os_types.h"
+#include "signal_types.h"
+
+/* Forward Declarations */
+struct mod_hdcp;
+
+#define MAX_NUM_OF_DISPLAYS 6
+#define MAX_NUM_OF_ATTEMPTS 4
+#define MAX_NUM_OF_ERROR_TRACE 10
+
+/* detailed return status */
+enum mod_hdcp_status {
+ MOD_HDCP_STATUS_SUCCESS = 0,
+ MOD_HDCP_STATUS_FAILURE,
+ MOD_HDCP_STATUS_RESET_NEEDED,
+ MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND,
+ MOD_HDCP_STATUS_DISPLAY_NOT_FOUND,
+ MOD_HDCP_STATUS_INVALID_STATE,
+ MOD_HDCP_STATUS_NOT_IMPLEMENTED,
+ MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE,
+ MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE,
+ MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE,
+ MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER,
+ MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE,
+ MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING,
+ MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY,
+ MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION,
+ MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED,
+ MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE,
+ MOD_HDCP_STATUS_HDCP1_INVALID_BKSV,
+ MOD_HDCP_STATUS_DDC_FAILURE, /* TODO: specific errors */
+ MOD_HDCP_STATUS_INVALID_OPERATION,
+ MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE,
+ MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING,
+ MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING,
+ MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION,
+ MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING,
+ MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST,
+ MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE,
+ MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE,
+};
+
+struct mod_hdcp_displayport {
+ uint8_t rev;
+ uint8_t assr_supported;
+};
+
+struct mod_hdcp_hdmi {
+ uint8_t reserved;
+};
+enum mod_hdcp_operation_mode {
+ MOD_HDCP_MODE_OFF,
+ MOD_HDCP_MODE_DEFAULT,
+ MOD_HDCP_MODE_DP,
+ MOD_HDCP_MODE_DP_MST
+};
+
+enum mod_hdcp_display_state {
+ MOD_HDCP_DISPLAY_INACTIVE = 0,
+ MOD_HDCP_DISPLAY_ACTIVE,
+ MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED,
+ MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED
+};
+
+struct mod_hdcp_ddc {
+ void *handle;
+ struct {
+ bool (*read_i2c)(void *handle,
+ uint32_t address,
+ uint8_t offset,
+ uint8_t *data,
+ uint32_t size);
+ bool (*write_i2c)(void *handle,
+ uint32_t address,
+ const uint8_t *data,
+ uint32_t size);
+ bool (*read_dpcd)(void *handle,
+ uint32_t address,
+ uint8_t *data,
+ uint32_t size);
+ bool (*write_dpcd)(void *handle,
+ uint32_t address,
+ const uint8_t *data,
+ uint32_t size);
+ } funcs;
+};
+
+struct mod_hdcp_psp {
+ void *handle;
+ void *funcs;
+};
+
+struct mod_hdcp_display_adjustment {
+ uint8_t disable : 1;
+ uint8_t reserved : 7;
+};
+
+struct mod_hdcp_link_adjustment_hdcp1 {
+ uint8_t disable : 1;
+ uint8_t postpone_encryption : 1;
+ uint8_t reserved : 6;
+};
+
+struct mod_hdcp_link_adjustment_hdcp2 {
+ uint8_t disable : 1;
+ uint8_t disable_type1 : 1;
+ uint8_t force_no_stored_km : 1;
+ uint8_t increase_h_prime_timeout: 1;
+ uint8_t reserved : 4;
+};
+
+struct mod_hdcp_link_adjustment {
+ uint8_t auth_delay;
+ struct mod_hdcp_link_adjustment_hdcp1 hdcp1;
+ struct mod_hdcp_link_adjustment_hdcp2 hdcp2;
+};
+
+struct mod_hdcp_error {
+ enum mod_hdcp_status status;
+ uint8_t state_id;
+};
+
+struct mod_hdcp_trace {
+ struct mod_hdcp_error errors[MAX_NUM_OF_ERROR_TRACE];
+ uint8_t error_count;
+};
+
+enum mod_hdcp_encryption_status {
+ MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF = 0,
+ MOD_HDCP_ENCRYPTION_STATUS_HDCP1_ON,
+ MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON,
+ MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON
+};
+
+/* per link events dm has to notify to hdcp module */
+enum mod_hdcp_event {
+ MOD_HDCP_EVENT_CALLBACK = 0,
+ MOD_HDCP_EVENT_WATCHDOG_TIMEOUT,
+ MOD_HDCP_EVENT_CPIRQ
+};
+
+/* output flags from module requesting timer operations */
+struct mod_hdcp_output {
+ uint8_t callback_needed;
+ uint8_t callback_stop;
+ uint8_t watchdog_timer_needed;
+ uint8_t watchdog_timer_stop;
+ uint16_t callback_delay;
+ uint16_t watchdog_timer_delay;
+};
+
+/* used to represent per display info */
+struct mod_hdcp_display {
+ enum mod_hdcp_display_state state;
+ uint8_t index;
+ uint8_t controller;
+ uint8_t dig_fe;
+ union {
+ uint8_t vc_id;
+ };
+ struct mod_hdcp_display_adjustment adjust;
+};
+
+/* used to represent per link info */
+/* in case a link has multiple displays, they share the same link info */
+struct mod_hdcp_link {
+ enum mod_hdcp_operation_mode mode;
+ uint8_t dig_be;
+ uint8_t ddc_line;
+ union {
+ struct mod_hdcp_displayport dp;
+ struct mod_hdcp_hdmi hdmi;
+ };
+ struct mod_hdcp_link_adjustment adjust;
+};
+
+/* a query structure for a display's hdcp information */
+struct mod_hdcp_display_query {
+ const struct mod_hdcp_display *display;
+ const struct mod_hdcp_link *link;
+ const struct mod_hdcp_trace *trace;
+ enum mod_hdcp_encryption_status encryption_status;
+};
+
+/* contains values per on external display configuration change */
+struct mod_hdcp_config {
+ struct mod_hdcp_psp psp;
+ struct mod_hdcp_ddc ddc;
+ uint8_t index;
+};
+
+struct mod_hdcp;
+
+/* dm allocates memory of mod_hdcp per dc_link on dm init based on memory size*/
+size_t mod_hdcp_get_memory_size(void);
+
+/* called per link on link creation */
+enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp,
+ struct mod_hdcp_config *config);
+
+/* called per link on link destroy */
+enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp);
+
+/* called per display on cp_desired set to true */
+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);
+
+/* called per display on cp_desired set to false */
+enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp,
+ uint8_t index, struct mod_hdcp_output *output);
+
+/* called to query hdcp information on a specific index */
+enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp,
+ uint8_t index, struct mod_hdcp_display_query *query);
+
+/* called per link on connectivity change */
+enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp,
+ struct mod_hdcp_output *output);
+
+/* called per link on events (i.e. callback, watchdog, CP_IRQ) */
+enum mod_hdcp_status mod_hdcp_process_event(struct mod_hdcp *hdcp,
+ enum mod_hdcp_event event, struct mod_hdcp_output *output);
+
+/* called to convert enum mod_hdcp_status to c string */
+char *mod_hdcp_status_to_str(int32_t status);
+
+/* called to convert state id to c string */
+char *mod_hdcp_state_id_to_str(int32_t id);
+
+/* called to convert signal type to operation mode */
+enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode(
+ enum signal_type signal);
+#endif /* MOD_HDCP_H_ */
--
2.17.1
More information about the amd-gfx
mailing list