firmware/export/usb_core.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Björn Stenberg
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #ifndef USB_CORE_H
  22 #define USB_CORE_H
  23
  24 #include "usb_ch9.h"
  25 #include "usb.h"
  26
  27 /* endpoints */
  28 #define EP_CONTROL 0
  29
  30 #define DIR_OUT 0
  31 #define DIR_IN 1
  32
  33 /* The USB core is a device, and OUT is RX from that P.O.V */
  34 #define DIR_RX DIR_OUT
  35 #define DIR_TX DIR_IN
  36
  37 #define EP_DIR(ep) (((ep) & USB_ENDPOINT_DIR_MASK) ? DIR_IN : DIR_OUT)
  38 #define EP_NUM(ep) ((ep) & USB_ENDPOINT_NUMBER_MASK)
  39
  40 extern int usb_max_pkt_size;
  41
  42 struct usb_class_driver;
  43
  44 void usb_core_init(void);
  45 void usb_core_exit(void);
  46 void usb_core_control_request(struct usb_ctrlrequest* req);
  47 void usb_core_transfer_complete(int endpoint,int dir,int status,int length);
  48 void usb_core_bus_reset(void);
  49 bool usb_core_any_exclusive_storage(void);
  50 void usb_core_enable_driver(int driver,bool enabled);
  51 bool usb_core_driver_enabled(int driver);
  52 void usb_core_handle_transfer_completion(
  53         struct usb_transfer_completion_event_data* event);
  54
  55 int usb_core_request_endpoint(int type, int dir,struct usb_class_driver* drv);
  56 void usb_core_release_endpoint(int dir);
  57
  58 #ifdef HAVE_HOTSWAP
  59 void usb_core_hotswap_event(int volume,bool inserted);
  60 #endif
  61
  62 #ifdef HAVE_USB_CHARGING_ENABLE
  63 /* hardware which knows how to control usb current should use one
  64  * of the following to find out from the usb stack how much is ok
  65  */
  66 /* implemented by target, called by usb when value changes */
  67 void usb_charging_maxcurrent_change(int maxcurrent);
  68 /* implemented by usb, called by target to get value */
  69 int usb_charging_maxcurrent(void);
  70 #endif
  71
  72 #endif
  73