release/src/router/apcupsd/src/win32/libusb-winusb-bridge.h

   1 /*
   2  * libusb-winusb-bridge.h
   3  *
   4  * Simple backend for libusb using MS WinUsb. Only the basic functions
   5  * necessary for apcupsd are implemented, although the others could be added
   6  * fairly easily.
   7  */
   8
   9 /*
  10  * Copyright (C) 2010 Adam Kropelin
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of version 2 of the GNU General
  14  * Public License as published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public
  22  * License along with this program; if not, write to the Free
  23  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  24  * MA 02111-1307, USA.
  25  */
  26
  27 #ifndef __LIBUSB_WINUSB_BRIDGE_H
  28 #define __LIBUSB_WINUSB_BRIDGE_H
  29
  30 #include "winusb.h"
  31 #include <limits.h>
  32
  33 // Make old libusb constants from WinUSB constants
  34 #define USB_ENDPOINT_IN         USB_ENDPOINT_DIRECTION_MASK
  35 #define USB_ENDPOINT_OUT        0
  36 #define USB_RECIP_INTERFACE     (BMREQUEST_TO_INTERFACE << 0)
  37 #define USB_TYPE_CLASS          (BMREQUEST_CLASS << 5)
  38 #define USB_REQ_GET_DESCRIPTOR  USB_REQUEST_GET_DESCRIPTOR
  39 #define USB_DT_REPORT           0x22
  40 #define USB_REQ_GET_REPORT      0x01
  41 #define USB_REQ_SET_REPORT      0x09
  42
  43 // usb device descriptor
  44 struct usb_device_descriptor
  45 {
  46    UCHAR  bLength;
  47    UCHAR  bDescriptorType;
  48    USHORT bcdUSB;
  49    UCHAR  bDeviceClass;
  50    UCHAR  bDeviceSubClass;
  51    UCHAR  bDeviceProtocol;
  52    UCHAR  bMaxPacketSize0;
  53    USHORT idVendor;
  54    USHORT idProduct;
  55    USHORT bcdDevice;
  56    UCHAR  iManufacturer;
  57    UCHAR  iProduct;
  58    UCHAR  iSerialNumber;
  59    UCHAR  bNumConfigurations;
  60 };
  61
  62 // libusb structures, abbreviated
  63 struct usb_bus;
  64 struct usb_device
  65 {
  66   struct usb_device *next, *prev;
  67   char filename[PATH_MAX + 1];
  68   struct usb_bus *bus;
  69   struct usb_device_descriptor descriptor;
  70 };
  71
  72 struct usb_bus
  73 {
  74   struct usb_bus *next, *prev;
  75   char dirname[PATH_MAX + 1];
  76   struct usb_device *devices;
  77 };
  78
  79 struct usb_dev_handle;
  80 typedef struct usb_dev_handle usb_dev_handle;
  81
  82 // libusb function prototypes (just the ones we support)
  83 usb_dev_handle *usb_open(struct usb_device *dev);
  84 int usb_close(usb_dev_handle *dev);
  85 int usb_get_string_simple(
  86    usb_dev_handle *dev, int index, char *buf, size_t buflen);
  87 int usb_interrupt_read(
  88    usb_dev_handle *dev, int ep, char *bytes, int size, int timeout);
  89 int usb_control_msg(
  90    usb_dev_handle *dev, int requesttype, int request, int value,
  91    int index, char *bytes, int size, int timeout);
  92 int usb_set_configuration(usb_dev_handle *dev, int configuration);
  93 int usb_claim_interface(usb_dev_handle *dev, int iface);
  94 int usb_reset(usb_dev_handle *dev);
  95 char *usb_strerror(void);
  96 void usb_init(void);
  97 void usb_set_debug(int level);
  98 int usb_find_busses(void);
  99 int usb_find_devices(void);
 100 struct usb_bus *usb_get_busses(void);
 101
 102 #endif  // __LIBUSB_WINUSB_BRIDGE_H