drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h

Extension

.h

Size

1714 bytes

Lines

74

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

• linux/types.h
• linux/delay.h
• drm/drm_device.h
• drm/drm_encoder.h
• drm/drm_connector.h
• drm/drm_print.h
• drm/display/drm_dp_helper.h

Detected Declarations

• struct hibmc_dp_dev
• struct hibmc_dp_color_raw
• struct hibmc_dp_cbar_cfg
• struct hibmc_dp
• enum hibmc_hpd_status
• enum hibmc_dp_cbar_pattern

Annotated Snippet

struct hibmc_dp_color_raw {
	enum hibmc_dp_cbar_pattern pattern;
	u32 r_value;
	u32 g_value;
	u32 b_value;
};

struct hibmc_dp_cbar_cfg {
	u8 enable;
	u8 self_timing;
	u8 dynamic_rate; /* 0:static, 1-255(frame):dynamic */
	enum hibmc_dp_cbar_pattern pattern;
};

struct hibmc_dp {
	struct hibmc_dp_dev *dp_dev;
	struct drm_device *drm_dev;
	struct drm_encoder encoder;
	struct drm_connector connector;
	void __iomem *mmio;
	struct drm_dp_aux aux;
	struct hibmc_dp_cbar_cfg cfg;
	u32 irq_status;
	int phys_status;
};

int hibmc_dp_hw_init(struct hibmc_dp *dp);
int hibmc_dp_mode_set(struct hibmc_dp *dp, struct drm_display_mode *mode);
void hibmc_dp_display_en(struct hibmc_dp *dp, bool enable);
void hibmc_dp_set_cbar(struct hibmc_dp *dp, const struct hibmc_dp_cbar_cfg *cfg);
void hibmc_dp_reset_link(struct hibmc_dp *dp);
void hibmc_dp_hpd_cfg(struct hibmc_dp *dp);
void hibmc_dp_enable_int(struct hibmc_dp *dp);
void hibmc_dp_disable_int(struct hibmc_dp *dp);
bool hibmc_dp_check_hpd_status(struct hibmc_dp *dp, int exp_status);
u8 hibmc_dp_get_link_rate(struct hibmc_dp *dp);
u8 hibmc_dp_get_lanes(struct hibmc_dp *dp);

#endif

Annotation

• Immediate include surface: `linux/types.h`, `linux/delay.h`, `drm/drm_device.h`, `drm/drm_encoder.h`, `drm/drm_connector.h`, `drm/drm_print.h`, `drm/display/drm_dp_helper.h`.
• Detected declarations: `struct hibmc_dp_dev`, `struct hibmc_dp_color_raw`, `struct hibmc_dp_cbar_cfg`, `struct hibmc_dp`, `enum hibmc_hpd_status`, `enum hibmc_dp_cbar_pattern`.
• 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.