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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 "usb-compat.h"
14 #endif
15 
musb_to_hcd(struct musb * musb)16 static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
17 {
18 	return container_of((void *) musb, struct usb_hcd, hcd_priv);
19 }
20 
hcd_to_musb(struct usb_hcd * hcd)21 static 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 */
27 struct 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 */
first_qh(struct list_head * q)55 static 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 
63 extern void musb_root_disconnect(struct musb *musb);
64 
65 struct usb_hcd;
66 
67 extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
68 extern int musb_hub_control(struct usb_hcd *hcd,
69 			u16 typeReq, u16 wValue, u16 wIndex,
70 			char *buf, u16 wLength);
71 
72 extern const struct hc_driver musb_hc_driver;
73 
next_urb(struct musb_qh * qh)74 static 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__
87 int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
88 int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
89 #endif
90 #endif				/* _MUSB_HOST_H */
91