drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/modules/hdcp/hdcp_log.h
Extension
.h
Size
5560 bytes
Lines
141
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef MOD_HDCP_LOG_H_
#define MOD_HDCP_LOG_H_

#define HDCP_LOG_ERR(hdcp, ...) DRM_DEBUG_KMS(__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__)
#define HDCP_LOG_TRA(hdcp) do {} while (0)

/* default logs */
#define HDCP_ERROR_TRACE(hdcp, status) \
		HDCP_LOG_ERR(hdcp, \
			"[Link %d] WARNING %s IN STATE %s STAY COUNT %d", \
			hdcp->config.index, \
			mod_hdcp_status_to_str(status), \
			mod_hdcp_state_id_to_str(hdcp->state.id), \
			hdcp->state.stay_count)
#define HDCP_HDCP1_ENABLED_TRACE(hdcp, displayIndex) \
		HDCP_LOG_VER(hdcp, \
			"[Link %d] HDCP 1.4 enabled on display %d", \
			hdcp->config.index, displayIndex)
#define HDCP_HDCP2_ENABLED_TRACE(hdcp, displayIndex) \
		HDCP_LOG_VER(hdcp, \
			"[Link %d] HDCP 2.2 enabled on display %d", \
			hdcp->config.index, displayIndex)
#define HDCP_HDCP1_DISABLED_TRACE(hdcp, displayIndex) \
		HDCP_LOG_VER(hdcp, \
			"[Link %d] HDCP 1.4 disabled on display %d", \
			hdcp->config.index, displayIndex)
#define HDCP_HDCP2_DISABLED_TRACE(hdcp, displayIndex) \
		HDCP_LOG_VER(hdcp, \
			"[Link %d] HDCP 2.2 disabled 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) \
		do { \
			if (event == MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) \
				HDCP_TIMEOUT_TRACE(hdcp); \
			else if (event == MOD_HDCP_EVENT_CPIRQ) \
				HDCP_CPIRQ_TRACE(hdcp);	\
		} while (0)
/* 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_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)

Annotation

Implementation Notes