include/linux/usb/typec_mux.h

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

File Facts

System
Linux kernel
Corpus path
include/linux/usb/typec_mux.h
Extension
.h
Size
3659 bytes
Lines
145
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 typec_switch_desc {
	struct fwnode_handle *fwnode;
	typec_switch_set_fn_t set;
	const char *name;
	void *drvdata;
};

#if IS_ENABLED(CONFIG_TYPEC)

struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode);
void typec_switch_put(struct typec_switch *sw);
int typec_switch_set(struct typec_switch *sw,
		     enum typec_orientation orientation);

struct typec_switch_dev *
typec_switch_register(struct device *parent,
		      const struct typec_switch_desc *desc);
void typec_switch_unregister(struct typec_switch_dev *sw);

void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data);
void *typec_switch_get_drvdata(struct typec_switch_dev *sw);

#else

static inline struct typec_switch *
fwnode_typec_switch_get(struct fwnode_handle *fwnode)
{
	return NULL;
}

static inline void typec_switch_put(struct typec_switch *sw) {}

static inline int typec_switch_set(struct typec_switch *sw,
				   enum typec_orientation orientation)
{
	return 0;
}

static inline struct typec_switch_dev *
typec_switch_register(struct device *parent,
		      const struct typec_switch_desc *desc)
{
	return ERR_PTR(-EOPNOTSUPP);
}

static inline void typec_switch_unregister(struct typec_switch_dev *sw) {}

static inline void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data) {}
static inline void *typec_switch_get_drvdata(struct typec_switch_dev *sw)
{
	return ERR_PTR(-EOPNOTSUPP);
}

#endif /* CONFIG_TYPEC */

static inline struct typec_switch *typec_switch_get(struct device *dev)
{
	return fwnode_typec_switch_get(dev_fwnode(dev));
}

struct typec_mux_state {
	struct typec_altmode *alt;
	unsigned long mode;
	void *data;
};

typedef int (*typec_mux_set_fn_t)(struct typec_mux_dev *mux,
				  struct typec_mux_state *state);

struct typec_mux_desc {
	struct fwnode_handle *fwnode;
	typec_mux_set_fn_t set;
	const char *name;
	void *drvdata;
};

#if IS_ENABLED(CONFIG_TYPEC)

struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode);
void typec_mux_put(struct typec_mux *mux);
int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state);

struct typec_mux_dev *
typec_mux_register(struct device *parent, const struct typec_mux_desc *desc);
void typec_mux_unregister(struct typec_mux_dev *mux);

void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data);
void *typec_mux_get_drvdata(struct typec_mux_dev *mux);

#else

Annotation

Implementation Notes