drivers/gpu/drm/radeon/radeon_audio.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/radeon/radeon_audio.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/radeon/radeon_audio.h
Extension
.h
Size
4320 bytes
Lines
97
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

struct radeon_audio_basic_funcs {
	u32  (*endpoint_rreg)(struct radeon_device *rdev, u32 offset, u32 reg);
	void (*endpoint_wreg)(struct radeon_device *rdev,
		u32 offset, u32 reg, u32 v);
	void (*enable)(struct radeon_device *rdev,
		struct r600_audio_pin *pin, u8 enable_mask);
};

struct radeon_audio_funcs {
	void (*select_pin)(struct drm_encoder *encoder);
	struct r600_audio_pin* (*get_pin)(struct radeon_device *rdev);
	void (*write_latency_fields)(struct drm_encoder *encoder,
		struct drm_connector *connector, struct drm_display_mode *mode);
	void (*write_sad_regs)(struct drm_encoder *encoder,
		struct cea_sad *sads, int sad_count);
	void (*write_speaker_allocation)(struct drm_encoder *encoder,
		u8 *sadb, int sad_count);
	void (*set_dto)(struct radeon_device *rdev,
		struct radeon_crtc *crtc, unsigned int clock);
	void (*update_acr)(struct drm_encoder *encoder, long offset,
		const struct radeon_hdmi_acr *acr);
	void (*set_vbi_packet)(struct drm_encoder *encoder, u32 offset);
	void (*set_color_depth)(struct drm_encoder *encoder, u32 offset, int bpc);
	void (*set_avi_packet)(struct radeon_device *rdev, u32 offset,
		unsigned char *buffer, size_t size);
	void (*set_audio_packet)(struct drm_encoder *encoder, u32 offset);
	void (*set_mute)(struct drm_encoder *encoder, u32 offset, bool mute);
	void (*mode_set)(struct drm_encoder *encoder,
		struct drm_display_mode *mode);
	void (*dpms)(struct drm_encoder *encoder, bool mode);
};

int radeon_audio_init(struct radeon_device *rdev);
void radeon_audio_detect(struct drm_connector *connector,
			 struct drm_encoder *encoder,
			 enum drm_connector_status status);
u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
	u32 offset, u32 reg);
void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
	u32 offset,	u32 reg, u32 v);
struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
void radeon_audio_fini(struct radeon_device *rdev);
void radeon_audio_mode_set(struct drm_encoder *encoder,
	struct drm_display_mode *mode);
void radeon_audio_dpms(struct drm_encoder *encoder, int mode);
unsigned int radeon_audio_decode_dfs_div(unsigned int div);

void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
				struct cea_sad *sads, int sad_count);
void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
					       u8 *sadb, int sad_count);
void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
					     u8 *sadb, int sad_count);
void dce3_2_audio_set_dto(struct radeon_device *rdev,
			  struct radeon_crtc *crtc, unsigned int clock);
void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
			    const struct radeon_hdmi_acr *acr);
void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset);
void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
#endif

Annotation

Implementation Notes