| /* |
| * MUSB OTG driver peripheral defines |
| * |
| * Copyright 2005 Mentor Graphics Corporation |
| * Copyright (C) 2005-2006 by Texas Instruments |
| * Copyright (C) 2006-2007 Nokia Corporation |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| * 02110-1301 USA |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef __MUSB_GADGET_H |
| #define __MUSB_GADGET_H |
| |
| struct musb_request { |
| struct usb_request request; |
| struct musb_ep *ep; |
| struct musb *musb; |
| u8 tx; /* endpoint direction */ |
| u8 epnum; |
| u8 mapped; |
| }; |
| |
| static inline struct musb_request *to_musb_request(struct usb_request *req) |
| { |
| return req ? container_of(req, struct musb_request, request) : NULL; |
| } |
| |
| extern struct usb_request * |
| musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags); |
| extern void musb_free_request(struct usb_ep *ep, struct usb_request *req); |
| |
| |
| /* |
| * struct musb_ep - peripheral side view of endpoint rx or tx side |
| */ |
| struct musb_ep { |
| /* stuff towards the head is basically write-once. */ |
| struct usb_ep end_point; |
| char name[12]; |
| struct musb_hw_ep *hw_ep; |
| struct musb *musb; |
| u8 current_epnum; |
| |
| /* ... when enabled/disabled ... */ |
| u8 type; |
| u8 is_in; |
| u16 packet_sz; |
| const struct usb_endpoint_descriptor *desc; |
| struct dma_channel *dma; |
| |
| /* later things are modified based on usage */ |
| struct list_head req_list; |
| |
| u8 wedged; |
| |
| /* true if lock must be dropped but req_list may not be advanced */ |
| u8 busy; |
| |
| u8 hb_mult; |
| }; |
| |
| static inline struct musb_ep *to_musb_ep(struct usb_ep *ep) |
| { |
| return ep ? container_of(ep, struct musb_ep, end_point) : NULL; |
| } |
| |
| static inline struct usb_request *next_request(struct musb_ep *ep) |
| { |
| struct list_head *queue = &ep->req_list; |
| |
| if (list_empty(queue)) |
| return NULL; |
| return container_of(queue->next, struct usb_request, list); |
| } |
| |
| extern void musb_g_tx(struct musb *musb, u8 epnum); |
| extern void musb_g_rx(struct musb *musb, u8 epnum); |
| |
| extern const struct usb_ep_ops musb_g_ep0_ops; |
| |
| extern int musb_gadget_setup(struct musb *); |
| extern void musb_gadget_cleanup(struct musb *); |
| |
| extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); |
| |
| extern void musb_ep_restart(struct musb *, struct musb_request *); |
| |
| #endif /* __MUSB_GADGET_H */ |