/* 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 {
|
struct usb_host_endpoint *hep; /* usbcore info */
|
struct usb_device *dev;
|
struct musb_hw_ep *hw_ep; /* current binding */
|
|
struct list_head ring; /* of musb_qh */
|
/* struct musb_qh *next; */ /* for periodic tree */
|
u8 mux; /* qh multiplexed to hw_ep */
|
|
unsigned offset; /* in urb->transfer_buffer */
|
unsigned segsize; /* current xfer fragment */
|
|
u8 type_reg; /* {rx,tx} type register */
|
u8 intv_reg; /* {rx,tx} interval register */
|
u8 addr_reg; /* device address register */
|
u8 h_addr_reg; /* hub address register */
|
u8 h_port_reg; /* hub port register */
|
|
u8 is_ready; /* safe to modify hw_ep */
|
u8 type; /* XFERTYPE_* */
|
u8 epnum;
|
u8 hb_mult; /* high bandwidth pkts per uf */
|
u16 maxpacket;
|
u16 frame; /* for periodic schedule */
|
unsigned iso_idx; /* in urb->iso_frame_desc[] */
|
struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */
|
bool use_sg; /* to track urb using sglist */
|
};
|
|
/* 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 (list_empty(q))
|
return NULL;
|
return list_entry(q->next, struct musb_qh, ring);
|
}
|
|
|
#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_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_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)
|
{
|
struct list_head *queue;
|
|
if (!qh)
|
return NULL;
|
queue = &qh->hep->urb_list;
|
if (list_empty(queue))
|
return NULL;
|
return list_entry(queue->next, struct urb, urb_list);
|
}
|
|
#endif /* _MUSB_HOST_H */
|
