drivers/gpu/drm/i915/display/intel_hdcp.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/intel_hdcp.h

Extension

.h

Size

1802 bytes

Lines

51

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.

• 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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct drm_connector
• struct drm_connector_state
• struct intel_atomic_state
• struct intel_connector
• struct intel_crtc_state
• struct intel_digital_port
• struct intel_display
• struct intel_encoder
• struct intel_hdcp_shim
• struct seq_file
• enum port

Annotated Snippet

#ifndef __INTEL_HDCP_H__
#define __INTEL_HDCP_H__

#include <linux/types.h>

#define HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS	50

struct drm_connector;
struct drm_connector_state;
struct intel_atomic_state;
struct intel_connector;
struct intel_crtc_state;
struct intel_digital_port;
struct intel_display;
struct intel_encoder;
struct intel_hdcp_shim;
struct seq_file;
enum port;

void intel_hdcp_atomic_check(struct drm_connector *connector,
			     struct drm_connector_state *old_state,
			     struct drm_connector_state *new_state);
int intel_hdcp_init(struct intel_connector *connector,
		    struct intel_digital_port *dig_port,
		    const struct intel_hdcp_shim *hdcp_shim);
void intel_hdcp_enable(struct intel_atomic_state *state,
		       struct intel_encoder *encoder,
		       const struct intel_crtc_state *pipe_config,
		       const struct drm_connector_state *conn_state);
int intel_hdcp_disable(struct intel_connector *connector);
void intel_hdcp_cancel_works(struct intel_connector *connector);
void intel_hdcp_update_pipe(struct intel_atomic_state *state,
			    struct intel_encoder *encoder,
			    const struct intel_crtc_state *crtc_state,
			    const struct drm_connector_state *conn_state);
bool is_hdcp_supported(struct intel_display *display, enum port port);
void intel_hdcp_component_init(struct intel_display *display);
void intel_hdcp_component_fini(struct intel_display *display);
void intel_hdcp_cleanup(struct intel_connector *connector);
void intel_hdcp_handle_cp_irq(struct intel_connector *connector);

void intel_hdcp_info(struct seq_file *m, struct intel_connector *connector);
void intel_hdcp_connector_debugfs_add(struct intel_connector *connector);

#endif /* __INTEL_HDCP_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_connector`, `struct drm_connector_state`, `struct intel_atomic_state`, `struct intel_connector`, `struct intel_crtc_state`, `struct intel_digital_port`, `struct intel_display`, `struct intel_encoder`, `struct intel_hdcp_shim`, `struct seq_file`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.