projects / deliverable / linux.git / blame
| 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 | ||
| ad1adb89 FB |
38 | #include <linux/list.h> |
| 39 | ||
| c65bfa62 MYK |
40 | enum buffer_map_state { |
| 41 | UN_MAPPED = 0, | |
| 42 | PRE_MAPPED, | |
| 43 | MUSB_MAPPED | |
| 44 | }; | |
| 45 | ||
| 550a7375 FB |
46 | struct musb_request { |
| 47 | struct usb_request request; | |
| ad1adb89 | 48 | struct list_head list; |
| 550a7375 FB |
49 | struct musb_ep *ep; |
| 50 | struct musb *musb; | |
| 51 | u8 tx; /* endpoint direction */ | |
| 52 | u8 epnum; | |
| c65bfa62 | 53 | enum buffer_map_state map_state; |
| 550a7375 FB |
54 | }; |
| 55 | ||
| 56 | static inline struct musb_request *to_musb_request(struct usb_request *req) | |
| 57 | { | |
| 58 | return req ? container_of(req, struct musb_request, request) : NULL; | |
| 59 | } | |
| 60 | ||
| 61 | extern struct usb_request * | |
| 62 | musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags); | |
| 63 | extern void musb_free_request(struct usb_ep *ep, struct usb_request *req); | |
| 64 | ||
| 65 | ||
| 66 | /* | |
| 67 | * struct musb_ep - peripheral side view of endpoint rx or tx side | |
| 68 | */ | |
| 69 | struct musb_ep { | |
| 70 | /* stuff towards the head is basically write-once. */ | |
| 71 | struct usb_ep end_point; | |
| 72 | char name[12]; | |
| 73 | struct musb_hw_ep *hw_ep; | |
| 74 | struct musb *musb; | |
| 75 | u8 current_epnum; | |
| 76 | ||
| 77 | /* ... when enabled/disabled ... */ | |
| 78 | u8 type; | |
| 79 | u8 is_in; | |
| 80 | u16 packet_sz; | |
| 81 | const struct usb_endpoint_descriptor *desc; | |
| 82 | struct dma_channel *dma; | |
| 83 | ||
| 84 | /* later things are modified based on usage */ | |
| 85 | struct list_head req_list; | |
| 86 | ||
| 47e97605 SS |
87 | u8 wedged; |
| 88 | ||
| 550a7375 FB |
89 | /* true if lock must be dropped but req_list may not be advanced */ |
| 90 | u8 busy; | |
| f11d893d ML |
91 | |
| 92 | u8 hb_mult; | |
| 550a7375 FB |
93 | }; |
| 94 | ||
| 95 | static inline struct musb_ep *to_musb_ep(struct usb_ep *ep) | |
| 96 | { | |
| 97 | return ep ? container_of(ep, struct musb_ep, end_point) : NULL; | |
| 98 | } | |
| 99 | ||
| ad1adb89 | 100 | static inline struct musb_request *next_request(struct musb_ep *ep) |
| 550a7375 FB |
101 | { |
| 102 | struct list_head *queue = &ep->req_list; | |
| 103 | ||
| 104 | if (list_empty(queue)) | |
| 105 | return NULL; | |
| ad1adb89 | 106 | return container_of(queue->next, struct musb_request, list); |
| 550a7375 FB |
107 | } |
| 108 | ||
| 109 | extern void musb_g_tx(struct musb *musb, u8 epnum); | |
| 110 | extern void musb_g_rx(struct musb *musb, u8 epnum); | |
| 111 | ||
| 112 | extern const struct usb_ep_ops musb_g_ep0_ops; | |
| 113 | ||
| 114 | extern int musb_gadget_setup(struct musb *); | |
| 115 | extern void musb_gadget_cleanup(struct musb *); | |
| 116 | ||
| 117 | extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); | |
| 118 | ||
| a666e3e6 SS |
119 | extern void musb_ep_restart(struct musb *, struct musb_request *); |
| 120 | ||
| 550a7375 | 121 | #endif /* __MUSB_GADGET_H */ |