include/linux/usb/renesas_usbhs.h

Source file repositories/reference/linux-study-clean/include/linux/usb/renesas_usbhs.h

File Facts

System
Linux kernel
Corpus path
include/linux/usb/renesas_usbhs.h
Extension
.h
Size
3704 bytes
Lines
198
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 renesas_usbhs_platform_callback {

	/*
	 * option:
	 *
	 * Hardware init function for platform.
	 * it is called when driver was probed.
	 */
	int (*hardware_init)(struct platform_device *pdev);

	/*
	 * option:
	 *
	 * Hardware exit function for platform.
	 * it is called when driver was removed
	 */
	int (*hardware_exit)(struct platform_device *pdev);

	/*
	 * option:
	 *
	 * for board specific clock control
	 */
	int (*power_ctrl)(struct platform_device *pdev,
			   void __iomem *base, int enable);

	/*
	 * option:
	 *
	 * Phy reset for platform
	 */
	int (*phy_reset)(struct platform_device *pdev);

	/*
	 * get USB ID function
	 *  - USBHS_HOST
	 *  - USBHS_GADGET
	 */
	int (*get_id)(struct platform_device *pdev);

	/*
	 * get VBUS status function.
	 */
	int (*get_vbus)(struct platform_device *pdev);

	/*
	 * option:
	 *
	 * VBUS control is needed for Host
	 */
	int (*set_vbus)(struct platform_device *pdev, int enable);

	/*
	 * option:
	 * extcon notifier to set host/peripheral mode.
	 */
	int (*notifier)(struct notifier_block *nb, unsigned long event,
			void *data);
};

/*
 * parameters for renesas usbhs
 *
 * some register needs USB chip specific parameters.
 * This struct show it to driver
 */

struct renesas_usbhs_driver_pipe_config {
	u8 type;	/* USB_ENDPOINT_XFER_xxx */
	u16 bufsize;
	u8 bufnum;
	bool double_buf;
};
#define RENESAS_USBHS_PIPE(_type, _size, _num, _double_buf)	{	\
			.type = (_type),		\
			.bufsize = (_size),		\
			.bufnum = (_num),		\
			.double_buf = (_double_buf),	\
	}

struct renesas_usbhs_driver_param {
	/*
	 * pipe settings
	 */
	struct renesas_usbhs_driver_pipe_config *pipe_configs;
	int pipe_size; /* pipe_configs array size */

	/*
	 * option:
	 *

Annotation

Implementation Notes