[mirror_ubuntu-bionic-kernel.git] / drivers / usb / gadget / g_zero.h

/*
 * This header declares the utility functions used by "Gadget Zero", plus
 * interfaces to its two single-configuration function drivers.
 */

#ifndef __G_ZERO_H
#define __G_ZERO_H

#include <linux/usb/composite.h>

/* global state */
extern unsigned buflen;
extern const struct usb_descriptor_header *otg_desc[];

/* common utilities */
struct usb_request *alloc_ep_req(struct usb_ep *ep);
void free_ep_req(struct usb_ep *ep, struct usb_request *req);
void disable_endpoints(struct usb_composite_dev *cdev,
		struct usb_ep *in, struct usb_ep *out);

/* configuration-specific linkup */
int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume);
int loopback_add(struct usb_composite_dev *cdev, bool autoresume);

#endif /* __G_ZERO_H */
Commit	Line	Data
a400cadc DB	1	/*
	2	* This header declares the utility functions used by "Gadget Zero", plus
	3	* interfaces to its two single-configuration function drivers.
	4	*/
	5
	6	#ifndef __G_ZERO_H
	7	#define __G_ZERO_H
	8
	9	#include <linux/usb/composite.h>
	10
	11	/* global state */
e5760fda	12	extern unsigned buflen;
a400cadc DB	13	extern const struct usb_descriptor_header *otg_desc[];
	14
	15	/* common utilities */
	16	struct usb_request alloc_ep_req(struct usb_ep ep);
	17	void free_ep_req(struct usb_ep ep, struct usb_request req);
	18	void disable_endpoints(struct usb_composite_dev *cdev,
	19	struct usb_ep in, struct usb_ep out);
	20
	21	/* configuration-specific linkup */
ab943a2e DB	22	int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume);
ab943a2e DB	23	int loopback_add(struct usb_composite_dev *cdev, bool autoresume);
a400cadc DB	24
a400cadc DB	25	#endif /* __G_ZERO_H */