linux/drivers/usb/musb/musb_host.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * MUSB OTG driver host defines
 *
 * Copyright 2005 Mentor Graphics Corporation
 * Copyright (C) 2005-2006 by Texas Instruments
 * Copyright (C) 2006-2007 Nokia Corporation
 */

#ifndef _MUSB_HOST_H
#define _MUSB_HOST_H

#include <linux/scatterlist.h>

/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
struct musb_qh { … };

/* map from control or bulk queue head to the first qh on that ring */
static inline struct musb_qh *first_qh(struct list_head *q)
{ … }


#if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE)
extern struct musb *hcd_to_musb(struct usb_hcd *);
extern irqreturn_t musb_h_ep0_irq(struct musb *);
extern int musb_host_alloc(struct musb *);
extern int musb_host_setup(struct musb *, int);
extern void musb_host_cleanup(struct musb *);
extern void musb_host_tx(struct musb *, u8);
extern void musb_host_rx(struct musb *, u8);
extern void musb_root_disconnect(struct musb *musb);
extern void musb_host_free(struct musb *);
extern void musb_host_resume_root_hub(struct musb *musb);
extern void musb_host_poke_root_hub(struct musb *musb);
extern int musb_port_suspend(struct musb *musb, bool do_suspend);
extern void musb_port_reset(struct musb *musb, bool do_reset);
extern void musb_host_finish_resume(struct work_struct *work);
#else
static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
{
	return NULL;
}

static inline irqreturn_t musb_h_ep0_irq(struct musb *musb)
{
	return 0;
}

static inline int musb_host_alloc(struct musb *musb)
{
	return 0;
}

static inline int musb_host_setup(struct musb *musb, int power_budget)
{
	return 0;
}

static inline void musb_host_cleanup(struct musb *musb)		{}
static inline void musb_host_free(struct musb *musb)		{}
static inline void musb_host_tx(struct musb *musb, u8 epnum)	{}
static inline void musb_host_rx(struct musb *musb, u8 epnum)	{}
static inline void musb_root_disconnect(struct musb *musb)	{}
static inline void musb_host_resume_root_hub(struct musb *musb)	{}
static inline void musb_host_poke_root_hub(struct musb *musb)	{}
static inline int musb_port_suspend(struct musb *musb, bool do_suspend)
{
	return 0;
}
static inline void musb_port_reset(struct musb *musb, bool do_reset) {}
static inline void musb_host_finish_resume(struct work_struct *work) {}
#endif

struct usb_hcd;

extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
extern int musb_hub_control(struct usb_hcd *hcd,
			u16 typeReq, u16 wValue, u16 wIndex,
			char *buf, u16 wLength);

static inline struct urb *next_urb(struct musb_qh *qh)
{ … }

#endif				/* _MUSB_HOST_H */