Commit | Line | Data |
---|---|---|
550a7375 FB |
1 | /* |
2 | * MUSB OTG driver peripheral 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_GADGET_H | |
36 | #define __MUSB_GADGET_H | |
37 | ||
c65bfa62 MYK |
38 | enum buffer_map_state { |
39 | UN_MAPPED = 0, | |
40 | PRE_MAPPED, | |
41 | MUSB_MAPPED | |
42 | }; | |
43 | ||
550a7375 FB |
44 | struct musb_request { |
45 | struct usb_request request; | |
46 | struct musb_ep *ep; | |
47 | struct musb *musb; | |
48 | u8 tx; /* endpoint direction */ | |
49 | u8 epnum; | |
c65bfa62 | 50 | enum buffer_map_state map_state; |
550a7375 FB |
51 | }; |
52 | ||
53 | static inline struct musb_request *to_musb_request(struct usb_request *req) | |
54 | { | |
55 | return req ? container_of(req, struct musb_request, request) : NULL; | |
56 | } | |
57 | ||
58 | extern struct usb_request * | |
59 | musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags); | |
60 | extern void musb_free_request(struct usb_ep *ep, struct usb_request *req); | |
61 | ||
62 | ||
63 | /* | |
64 | * struct musb_ep - peripheral side view of endpoint rx or tx side | |
65 | */ | |
66 | struct musb_ep { | |
67 | /* stuff towards the head is basically write-once. */ | |
68 | struct usb_ep end_point; | |
69 | char name[12]; | |
70 | struct musb_hw_ep *hw_ep; | |
71 | struct musb *musb; | |
72 | u8 current_epnum; | |
73 | ||
74 | /* ... when enabled/disabled ... */ | |
75 | u8 type; | |
76 | u8 is_in; | |
77 | u16 packet_sz; | |
78 | const struct usb_endpoint_descriptor *desc; | |
79 | struct dma_channel *dma; | |
80 | ||
81 | /* later things are modified based on usage */ | |
82 | struct list_head req_list; | |
83 | ||
47e97605 SS |
84 | u8 wedged; |
85 | ||
550a7375 FB |
86 | /* true if lock must be dropped but req_list may not be advanced */ |
87 | u8 busy; | |
f11d893d ML |
88 | |
89 | u8 hb_mult; | |
550a7375 FB |
90 | }; |
91 | ||
92 | static inline struct musb_ep *to_musb_ep(struct usb_ep *ep) | |
93 | { | |
94 | return ep ? container_of(ep, struct musb_ep, end_point) : NULL; | |
95 | } | |
96 | ||
97 | static inline struct usb_request *next_request(struct musb_ep *ep) | |
98 | { | |
99 | struct list_head *queue = &ep->req_list; | |
100 | ||
101 | if (list_empty(queue)) | |
102 | return NULL; | |
103 | return container_of(queue->next, struct usb_request, list); | |
104 | } | |
105 | ||
106 | extern void musb_g_tx(struct musb *musb, u8 epnum); | |
107 | extern void musb_g_rx(struct musb *musb, u8 epnum); | |
108 | ||
109 | extern const struct usb_ep_ops musb_g_ep0_ops; | |
110 | ||
111 | extern int musb_gadget_setup(struct musb *); | |
112 | extern void musb_gadget_cleanup(struct musb *); | |
113 | ||
114 | extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); | |
115 | ||
a666e3e6 SS |
116 | extern void musb_ep_restart(struct musb *, struct musb_request *); |
117 | ||
550a7375 | 118 | #endif /* __MUSB_GADGET_H */ |