include/uapi/linux/am437x-vpfe.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/am437x-vpfe.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/am437x-vpfe.h
Extension
.h
Size
3681 bytes
Lines
126
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct vpfe_ccdc_a_law {
	/* Enable/disable A-Law */
	unsigned char enable;
	/* Gamma Width Input */
	enum vpfe_ccdc_gamma_width gamma_wd;
};

/* structure for Black Clamping */
struct vpfe_ccdc_black_clamp {
	unsigned char enable;
	/* only if bClampEnable is TRUE */
	enum vpfe_ccdc_sample_length sample_pixel;
	/* only if bClampEnable is TRUE */
	enum vpfe_ccdc_sample_line sample_ln;
	/* only if bClampEnable is TRUE */
	unsigned short start_pixel;
	/* only if bClampEnable is TRUE */
	unsigned short sgain;
	/* only if bClampEnable is FALSE */
	unsigned short dc_sub;
};

/* structure for Black Level Compensation */
struct vpfe_ccdc_black_compensation {
	/* Constant value to subtract from Red component */
	char r;
	/* Constant value to subtract from Gr component */
	char gr;
	/* Constant value to subtract from Blue component */
	char b;
	/* Constant value to subtract from Gb component */
	char gb;
};

/* Structure for CCDC configuration parameters for raw capture mode passed
 * by application
 */
struct vpfe_ccdc_config_params_raw {
	/* data size value from 8 to 16 bits */
	enum vpfe_ccdc_data_size data_sz;
	/* Structure for Optional A-Law */
	struct vpfe_ccdc_a_law alaw;
	/* Structure for Optical Black Clamp */
	struct vpfe_ccdc_black_clamp blk_clamp;
	/* Structure for Black Compensation */
	struct vpfe_ccdc_black_compensation blk_comp;
};

/*
 *  Private IOCTL
 * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture
 * This is an experimental ioctl that will change in future kernels. So use
 * this ioctl with care !
 **/
#define VIDIOC_AM437X_CCDC_CFG \
	_IOW('V', BASE_VIDIOC_PRIVATE + 1, void *)

#endif		/* AM437X_VPFE_USER_H */

Annotation

Implementation Notes