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 #ifdef __UBOOT__ 38 #include "usb-compat.h" 39 #endif 40 41 static inline struct usb_hcd *musb_to_hcd(struct musb *musb) 42 { 43 return container_of((void *) musb, struct usb_hcd, hcd_priv); 44 } 45 46 static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) 47 { 48 return (struct musb *) (hcd->hcd_priv); 49 } 50 51 /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */ 52 struct musb_qh { 53 struct usb_host_endpoint *hep; /* usbcore info */ 54 struct usb_device *dev; 55 struct musb_hw_ep *hw_ep; /* current binding */ 56 57 struct list_head ring; /* of musb_qh */ 58 /* struct musb_qh *next; */ /* for periodic tree */ 59 u8 mux; /* qh multiplexed to hw_ep */ 60 61 unsigned offset; /* in urb->transfer_buffer */ 62 unsigned segsize; /* current xfer fragment */ 63 64 u8 type_reg; /* {rx,tx} type register */ 65 u8 intv_reg; /* {rx,tx} interval register */ 66 u8 addr_reg; /* device address register */ 67 u8 h_addr_reg; /* hub address register */ 68 u8 h_port_reg; /* hub port register */ 69 70 u8 is_ready; /* safe to modify hw_ep */ 71 u8 type; /* XFERTYPE_* */ 72 u8 epnum; 73 u8 hb_mult; /* high bandwidth pkts per uf */ 74 u16 maxpacket; 75 u16 frame; /* for periodic schedule */ 76 unsigned iso_idx; /* in urb->iso_frame_desc[] */ 77 }; 78 79 /* map from control or bulk queue head to the first qh on that ring */ 80 static inline struct musb_qh *first_qh(struct list_head *q) 81 { 82 if (list_empty(q)) 83 return NULL; 84 return list_entry(q->next, struct musb_qh, ring); 85 } 86 87 88 extern void musb_root_disconnect(struct musb *musb); 89 90 struct usb_hcd; 91 92 extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf); 93 extern int musb_hub_control(struct usb_hcd *hcd, 94 u16 typeReq, u16 wValue, u16 wIndex, 95 char *buf, u16 wLength); 96 97 extern const struct hc_driver musb_hc_driver; 98 99 static inline struct urb *next_urb(struct musb_qh *qh) 100 { 101 struct list_head *queue; 102 103 if (!qh) 104 return NULL; 105 queue = &qh->hep->urb_list; 106 if (list_empty(queue)) 107 return NULL; 108 return list_entry(queue->next, struct urb, urb_list); 109 } 110 111 #ifdef __UBOOT__ 112 int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags); 113 int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status); 114 #endif 115 #endif /* _MUSB_HOST_H */ 116