1550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi/* 2550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * MUSB OTG driver peripheral defines 3550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 4550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * Copyright 2005 Mentor Graphics Corporation 5550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * Copyright (C) 2005-2006 by Texas Instruments 6550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * Copyright (C) 2006-2007 Nokia Corporation 7550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 8550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * This program is free software; you can redistribute it and/or 9550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * modify it under the terms of the GNU General Public License 10550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * version 2 as published by the Free Software Foundation. 11550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 12550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * This program is distributed in the hope that it will be useful, but 13550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * WITHOUT ANY WARRANTY; without even the implied warranty of 14550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * General Public License for more details. 16550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 17550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * You should have received a copy of the GNU General Public License 18550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * along with this program; if not, write to the Free Software 19550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 02110-1301 USA 21550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 22550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 23550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 24550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 25550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 28550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 29550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * 33550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi */ 34550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 35550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi#ifndef __MUSB_GADGET_H 36550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi#define __MUSB_GADGET_H 37550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 38ad1adb89a0d9410345d573b6995a1fa9f9b7c74aFelipe Balbi#include <linux/list.h> 39ad1adb89a0d9410345d573b6995a1fa9f9b7c74aFelipe Balbi 40c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukabenum buffer_map_state { 41c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab UN_MAPPED = 0, 42c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab PRE_MAPPED, 43c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab MUSB_MAPPED 44c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab}; 45c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab 46550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbistruct musb_request { 47550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct usb_request request; 48ad1adb89a0d9410345d573b6995a1fa9f9b7c74aFelipe Balbi struct list_head list; 49550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct musb_ep *ep; 50550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct musb *musb; 51550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 tx; /* endpoint direction */ 52550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 epnum; 53c65bfa62b7185bdeb063c2a637f501f00997d068Mian Yousaf Kaukab enum buffer_map_state map_state; 54550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi}; 55550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 56550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbistatic inline struct musb_request *to_musb_request(struct usb_request *req) 57550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi{ 58550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi return req ? container_of(req, struct musb_request, request) : NULL; 59550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi} 60550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 61550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern struct usb_request * 62550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbimusb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags); 63550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern void musb_free_request(struct usb_ep *ep, struct usb_request *req); 64550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 65550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 66550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi/* 67550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi * struct musb_ep - peripheral side view of endpoint rx or tx side 68550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi */ 69550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbistruct musb_ep { 70550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi /* stuff towards the head is basically write-once. */ 71550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct usb_ep end_point; 72550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi char name[12]; 73550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct musb_hw_ep *hw_ep; 74550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct musb *musb; 75550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 current_epnum; 76550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 77550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi /* ... when enabled/disabled ... */ 78550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 type; 79550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 is_in; 80550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u16 packet_sz; 81550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi const struct usb_endpoint_descriptor *desc; 82550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct dma_channel *dma; 83550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 84550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi /* later things are modified based on usage */ 85550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct list_head req_list; 86550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 8747e9760529a9823be59d879f726acdc7e2fcbe11Sergei Shtylyov u8 wedged; 8847e9760529a9823be59d879f726acdc7e2fcbe11Sergei Shtylyov 89550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi /* true if lock must be dropped but req_list may not be advanced */ 90550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi u8 busy; 91f11d893de444965dfd3e55f726533ae1df5c6471Ming Lei 92f11d893de444965dfd3e55f726533ae1df5c6471Ming Lei u8 hb_mult; 93550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi}; 94550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 95550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbistatic inline struct musb_ep *to_musb_ep(struct usb_ep *ep) 96550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi{ 97550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi return ep ? container_of(ep, struct musb_ep, end_point) : NULL; 98550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi} 99550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 100ad1adb89a0d9410345d573b6995a1fa9f9b7c74aFelipe Balbistatic inline struct musb_request *next_request(struct musb_ep *ep) 101550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi{ 102550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi struct list_head *queue = &ep->req_list; 103550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 104550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi if (list_empty(queue)) 105550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi return NULL; 106ad1adb89a0d9410345d573b6995a1fa9f9b7c74aFelipe Balbi return container_of(queue->next, struct musb_request, list); 107550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi} 108550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 109550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern void musb_g_tx(struct musb *musb, u8 epnum); 110550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern void musb_g_rx(struct musb *musb, u8 epnum); 111550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 112550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern const struct usb_ep_ops musb_g_ep0_ops; 113550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 114550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern int musb_gadget_setup(struct musb *); 115550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern void musb_gadget_cleanup(struct musb *); 116550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 117550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbiextern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); 118550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi 119a666e3e6098a9f56310e4ec2705f1dad124a34b5Sergei Shtylyovextern void musb_ep_restart(struct musb *, struct musb_request *); 120a666e3e6098a9f56310e4ec2705f1dad124a34b5Sergei Shtylyov 121550a7375fe720924241f0eb76e4a5c1a3eb8c32fFelipe Balbi#endif /* __MUSB_GADGET_H */ 122