include/linux/greybus/connection.h

Source file repositories/reference/linux-study-clean/include/linux/greybus/connection.h

File Facts

System
Linux kernel
Corpus path
include/linux/greybus/connection.h
Extension
.h
Size
3743 bytes
Lines
132
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 gb_connection {
	struct gb_host_device		*hd;
	struct gb_interface		*intf;
	struct gb_bundle		*bundle;
	struct kref			kref;
	u16				hd_cport_id;
	u16				intf_cport_id;

	struct list_head		hd_links;
	struct list_head		bundle_links;

	gb_request_handler_t		handler;
	unsigned long			flags;

	struct mutex			mutex;
	spinlock_t			lock;
	enum gb_connection_state	state;
	struct list_head		operations;

	char				name[16];
	struct workqueue_struct		*wq;

	atomic_t			op_cycle;

	void				*private;

	bool				mode_switch;
};

struct gb_connection *gb_connection_create_static(struct gb_host_device *hd,
				u16 hd_cport_id, gb_request_handler_t handler);
struct gb_connection *gb_connection_create_control(struct gb_interface *intf);
struct gb_connection *gb_connection_create(struct gb_bundle *bundle,
				u16 cport_id, gb_request_handler_t handler);
struct gb_connection *gb_connection_create_flags(struct gb_bundle *bundle,
				u16 cport_id, gb_request_handler_t handler,
				unsigned long flags);
struct gb_connection *gb_connection_create_offloaded(struct gb_bundle *bundle,
				u16 cport_id, unsigned long flags);
void gb_connection_destroy(struct gb_connection *connection);

static inline bool gb_connection_is_static(struct gb_connection *connection)
{
	return !connection->intf;
}

int gb_connection_enable(struct gb_connection *connection);
int gb_connection_enable_tx(struct gb_connection *connection);
void gb_connection_disable_rx(struct gb_connection *connection);
void gb_connection_disable(struct gb_connection *connection);
void gb_connection_disable_forced(struct gb_connection *connection);

void gb_connection_mode_switch_prepare(struct gb_connection *connection);
void gb_connection_mode_switch_complete(struct gb_connection *connection);

void greybus_data_rcvd(struct gb_host_device *hd, u16 cport_id,
		       u8 *data, size_t length);

void gb_connection_latency_tag_enable(struct gb_connection *connection);
void gb_connection_latency_tag_disable(struct gb_connection *connection);

static inline bool gb_connection_e2efc_enabled(struct gb_connection *connection)
{
	return !(connection->flags & GB_CONNECTION_FLAG_CSD);
}

static inline bool
gb_connection_flow_control_disabled(struct gb_connection *connection)
{
	return connection->flags & GB_CONNECTION_FLAG_NO_FLOWCTRL;
}

static inline bool gb_connection_is_offloaded(struct gb_connection *connection)
{
	return connection->flags & GB_CONNECTION_FLAG_OFFLOADED;
}

static inline bool gb_connection_is_control(struct gb_connection *connection)
{
	return connection->flags & GB_CONNECTION_FLAG_CONTROL;
}

static inline void *gb_connection_get_data(struct gb_connection *connection)
{
	return connection->private;
}

static inline void gb_connection_set_data(struct gb_connection *connection,
					  void *data)
{

Annotation

Implementation Notes