1 /*
2  * MUSB OTG driver host defines
3  *
4  * Copyright 2005 Mentor Graphics Corporation
5  * Copyright (C) 2005-2006 by Texas Instruments
6  * Copyright (C) 2006-2007 Nokia Corporation
7  *
8  * SPDX-License-Identifier:	GPL-2.0
9  */
10 
11 #ifndef _MUSB_HOST_H
12 #define _MUSB_HOST_H
13 #ifdef __UBOOT__
14 #include "usb-compat.h"
15 #endif
16 
17 static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
18 {
19 	return container_of((void *) musb, struct usb_hcd, hcd_priv);
20 }
21 
22 static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
23 {
24 	return (struct musb *) (hcd->hcd_priv);
25 }
26 
27 /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
28 struct musb_qh {
29 	struct usb_host_endpoint *hep;		/* usbcore info */
30 	struct usb_device	*dev;
31 	struct musb_hw_ep	*hw_ep;		/* current binding */
32 
33 	struct list_head	ring;		/* of musb_qh */
34 	/* struct musb_qh		*next; */	/* for periodic tree */
35 	u8			mux;		/* qh multiplexed to hw_ep */
36 
37 	unsigned		offset;		/* in urb->transfer_buffer */
38 	unsigned		segsize;	/* current xfer fragment */
39 
40 	u8			type_reg;	/* {rx,tx} type register */
41 	u8			intv_reg;	/* {rx,tx} interval register */
42 	u8			addr_reg;	/* device address register */
43 	u8			h_addr_reg;	/* hub address register */
44 	u8			h_port_reg;	/* hub port register */
45 
46 	u8			is_ready;	/* safe to modify hw_ep */
47 	u8			type;		/* XFERTYPE_* */
48 	u8			epnum;
49 	u8			hb_mult;	/* high bandwidth pkts per uf */
50 	u16			maxpacket;
51 	u16			frame;		/* for periodic schedule */
52 	unsigned		iso_idx;	/* in urb->iso_frame_desc[] */
53 };
54 
55 /* map from control or bulk queue head to the first qh on that ring */
56 static inline struct musb_qh *first_qh(struct list_head *q)
57 {
58 	if (list_empty(q))
59 		return NULL;
60 	return list_entry(q->next, struct musb_qh, ring);
61 }
62 
63 
64 extern void musb_root_disconnect(struct musb *musb);
65 
66 struct usb_hcd;
67 
68 extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
69 extern int musb_hub_control(struct usb_hcd *hcd,
70 			u16 typeReq, u16 wValue, u16 wIndex,
71 			char *buf, u16 wLength);
72 
73 extern const struct hc_driver musb_hc_driver;
74 
75 static inline struct urb *next_urb(struct musb_qh *qh)
76 {
77 	struct list_head	*queue;
78 
79 	if (!qh)
80 		return NULL;
81 	queue = &qh->hep->urb_list;
82 	if (list_empty(queue))
83 		return NULL;
84 	return list_entry(queue->next, struct urb, urb_list);
85 }
86 
87 #ifdef __UBOOT__
88 int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
89 int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
90 #endif
91 #endif				/* _MUSB_HOST_H */
92