4c283fdac0
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 |
+----+ <----- +--------+ +--------------+
v2: Drop unused function definitions
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
140 lines
5.6 KiB
C
140 lines
5.6 KiB
C
/*
|
|
* Copyright 2019 Advanced Micro Devices, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors: AMD
|
|
*
|
|
*/
|
|
|
|
#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_
|