1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * MUSB OTG driver host defines
4 *
5 * Copyright 2005 Mentor Graphics Corporation
6 * Copyright (C) 2005-2006 by Texas Instruments
7 * Copyright (C) 2006-2007 Nokia Corporation
8 */
9
10#ifndef _MUSB_HOST_H
11#define _MUSB_HOST_H
12#ifdef __UBOOT__
13#include <linux/usb/usb_urb_compat.h>
14#endif
15
16static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
17{
18	return container_of((void *) musb, struct usb_hcd, hcd_priv);
19}
20
21static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
22{
23	return (struct musb *) (hcd->hcd_priv);
24}
25
26/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
27struct musb_qh {
28	struct usb_host_endpoint *hep;		/* usbcore info */
29	struct usb_device	*dev;
30	struct musb_hw_ep	*hw_ep;		/* current binding */
31
32	struct list_head	ring;		/* of musb_qh */
33	/* struct musb_qh		*next; */	/* for periodic tree */
34	u8			mux;		/* qh multiplexed to hw_ep */
35
36	unsigned		offset;		/* in urb->transfer_buffer */
37	unsigned		segsize;	/* current xfer fragment */
38
39	u8			type_reg;	/* {rx,tx} type register */
40	u8			intv_reg;	/* {rx,tx} interval register */
41	u8			addr_reg;	/* device address register */
42	u8			h_addr_reg;	/* hub address register */
43	u8			h_port_reg;	/* hub port register */
44
45	u8			is_ready;	/* safe to modify hw_ep */
46	u8			type;		/* XFERTYPE_* */
47	u8			epnum;
48	u8			hb_mult;	/* high bandwidth pkts per uf */
49	u16			maxpacket;
50	u16			frame;		/* for periodic schedule */
51	unsigned		iso_idx;	/* in urb->iso_frame_desc[] */
52};
53
54/* map from control or bulk queue head to the first qh on that ring */
55static inline struct musb_qh *first_qh(struct list_head *q)
56{
57	if (list_empty(q))
58		return NULL;
59	return list_entry(q->next, struct musb_qh, ring);
60}
61
62
63extern void musb_root_disconnect(struct musb *musb);
64
65struct usb_hcd;
66
67extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
68extern int musb_hub_control(struct usb_hcd *hcd,
69			u16 typeReq, u16 wValue, u16 wIndex,
70			char *buf, u16 wLength);
71
72extern const struct hc_driver musb_hc_driver;
73
74static inline struct urb *next_urb(struct musb_qh *qh)
75{
76	struct list_head	*queue;
77
78	if (!qh)
79		return NULL;
80	queue = &qh->hep->urb_list;
81	if (list_empty(queue))
82		return NULL;
83	return list_entry(queue->next, struct urb, urb_list);
84}
85
86#ifdef __UBOOT__
87int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
88int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
89#endif
90#endif				/* _MUSB_HOST_H */
91