drivers/gpu/drm/meson/meson_venc.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/meson/meson_venc.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/meson/meson_venc.h
Extension
.h
Size
2325 bytes
Lines
80
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 meson_cvbs_enci_mode {
	unsigned int mode_tag;
	unsigned int hso_begin; /* HSO begin position */
	unsigned int hso_end; /* HSO end position */
	unsigned int vso_even; /* VSO even line */
	unsigned int vso_odd; /* VSO odd line */
	unsigned int macv_max_amp; /* Macrovision max amplitude */
	unsigned int video_prog_mode;
	unsigned int video_mode;
	unsigned int sch_adjust;
	unsigned int yc_delay;
	unsigned int pixel_start;
	unsigned int pixel_end;
	unsigned int top_field_line_start;
	unsigned int top_field_line_end;
	unsigned int bottom_field_line_start;
	unsigned int bottom_field_line_end;
	unsigned int video_saturation;
	unsigned int video_contrast;
	unsigned int video_brightness;
	unsigned int video_hue;
	unsigned int analog_sync_adj;
};

/* LCD Encoder gamma setup */
void meson_encl_load_gamma(struct meson_drm *priv);

/* HDMI Clock parameters */
enum drm_mode_status
meson_venc_hdmi_supported_mode(const struct drm_display_mode *mode);
bool meson_venc_hdmi_supported_vic(int vic);
bool meson_venc_hdmi_venc_repeat(int vic);

/* CVBS Timings and Parameters */
extern struct meson_cvbs_enci_mode meson_cvbs_enci_pal;
extern struct meson_cvbs_enci_mode meson_cvbs_enci_ntsc;

void meson_venci_cvbs_mode_set(struct meson_drm *priv,
			       struct meson_cvbs_enci_mode *mode);
void meson_venc_hdmi_mode_set(struct meson_drm *priv, int vic,
			      unsigned int ycrcb_map,
			      bool yuv420_mode,
			      const struct drm_display_mode *mode);
void meson_venc_mipi_dsi_mode_set(struct meson_drm *priv,
				  const struct drm_display_mode *mode);
unsigned int meson_venci_get_field(struct meson_drm *priv);

void meson_venc_enable_vsync(struct meson_drm *priv);
void meson_venc_disable_vsync(struct meson_drm *priv);

void meson_venc_init(struct meson_drm *priv);

#endif /* __MESON_VENC_H */

Annotation

Implementation Notes