drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h

Extension

.h

Size

2001 bytes

Lines

90

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• cdns-mhdp8546-core.h

Detected Declarations

• struct cdns_hdcp_pairing_data
• struct cdns_hdcp_tx_public_key_param

Annotated Snippet

struct cdns_hdcp_pairing_data {
	u8 receiver_id[HDCP_PAIRING_R_ID];
	u8 m[HDCP_PAIRING_M_LEN];
	u8 km[HDCP_KM_LEN];
	u8 ekh[HDCP_PAIRING_M_EKH];
};

enum {
	HDCP_TX_2,
	HDCP_TX_1,
	HDCP_TX_BOTH,
};

#define DLP_MODULUS_N 384
#define DLP_E 3

struct cdns_hdcp_tx_public_key_param {
	u8 N[DLP_MODULUS_N];
	u8 E[DLP_E];
};

int cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type);
int cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp);
void cdns_mhdp_hdcp_init(struct cdns_mhdp_device *mhdp);

#endif

Annotation

• Immediate include surface: `cdns-mhdp8546-core.h`.
• Detected declarations: `struct cdns_hdcp_pairing_data`, `struct cdns_hdcp_tx_public_key_param`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.

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.