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550a7375 FB |
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 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * version 2 as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
20 | * 02110-1301 USA | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED | |
23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
25 | * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
28 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
29 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifndef _MUSB_HOST_H | |
36 | #define _MUSB_HOST_H | |
37 | ||
8e8a5516 VS |
38 | #include <linux/scatterlist.h> |
39 | ||
550a7375 FB |
40 | static inline struct usb_hcd *musb_to_hcd(struct musb *musb) |
41 | { | |
42 | return container_of((void *) musb, struct usb_hcd, hcd_priv); | |
43 | } | |
44 | ||
45 | static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) | |
46 | { | |
47 | return (struct musb *) (hcd->hcd_priv); | |
48 | } | |
49 | ||
50 | /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */ | |
51 | struct musb_qh { | |
52 | struct usb_host_endpoint *hep; /* usbcore info */ | |
53 | struct usb_device *dev; | |
54 | struct musb_hw_ep *hw_ep; /* current binding */ | |
55 | ||
56 | struct list_head ring; /* of musb_qh */ | |
57 | /* struct musb_qh *next; */ /* for periodic tree */ | |
23d15e07 | 58 | u8 mux; /* qh multiplexed to hw_ep */ |
550a7375 FB |
59 | |
60 | unsigned offset; /* in urb->transfer_buffer */ | |
61 | unsigned segsize; /* current xfer fragment */ | |
62 | ||
63 | u8 type_reg; /* {rx,tx} type register */ | |
64 | u8 intv_reg; /* {rx,tx} interval register */ | |
65 | u8 addr_reg; /* device address register */ | |
66 | u8 h_addr_reg; /* hub address register */ | |
67 | u8 h_port_reg; /* hub port register */ | |
68 | ||
69 | u8 is_ready; /* safe to modify hw_ep */ | |
70 | u8 type; /* XFERTYPE_* */ | |
71 | u8 epnum; | |
a483d706 | 72 | u8 hb_mult; /* high bandwidth pkts per uf */ |
550a7375 FB |
73 | u16 maxpacket; |
74 | u16 frame; /* for periodic schedule */ | |
75 | unsigned iso_idx; /* in urb->iso_frame_desc[] */ | |
8e8a5516 | 76 | struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ |
ed74df12 | 77 | bool use_sg; /* to track urb using sglist */ |
550a7375 FB |
78 | }; |
79 | ||
80 | /* map from control or bulk queue head to the first qh on that ring */ | |
81 | static inline struct musb_qh *first_qh(struct list_head *q) | |
82 | { | |
83 | if (list_empty(q)) | |
84 | return NULL; | |
85 | return list_entry(q->next, struct musb_qh, ring); | |
86 | } | |
87 | ||
88 | ||
89 | extern void musb_root_disconnect(struct musb *musb); | |
90 | ||
91 | struct usb_hcd; | |
92 | ||
93 | extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf); | |
94 | extern int musb_hub_control(struct usb_hcd *hcd, | |
95 | u16 typeReq, u16 wValue, u16 wIndex, | |
96 | char *buf, u16 wLength); | |
97 | ||
98 | extern const struct hc_driver musb_hc_driver; | |
99 | ||
100 | static inline struct urb *next_urb(struct musb_qh *qh) | |
101 | { | |
550a7375 FB |
102 | struct list_head *queue; |
103 | ||
104 | if (!qh) | |
105 | return NULL; | |
106 | queue = &qh->hep->urb_list; | |
107 | if (list_empty(queue)) | |
108 | return NULL; | |
109 | return list_entry(queue->next, struct urb, urb_list); | |
550a7375 FB |
110 | } |
111 | ||
112 | #endif /* _MUSB_HOST_H */ |