tools/bcharge.cc

   1 ///
   2 /// \file       bcharge.cc
   3 ///             Talk to the Blackberry just enough to change the Max Power
   4 ///             to 500mA.  Cycles through all devices attached to USB,
   5 ///             attempting to set all matching Blackberry devices to charge.
   6 ///
   7 ///             This file is part of the Barry project:
   8 ///
   9 ///             http://www.netdirect.ca/software/packages/barry/index.php
  10 ///             http://sourceforge.net/projects/barry
  11 ///
  12 ///             Compile with the following command (needs libusb):
  13 ///
  14 ///             g++ -o bcharge bcharge.cc -lusb
  15 ///
  16
  17 /*
  18     Copyright (C) 2006, Net Direct Inc. (http://www.netdirect.ca/)
  19
  20     This program is free software; you can redistribute it and/or modify
  21     it under the terms of the GNU General Public License as published by
  22     the Free Software Foundation; either version 2 of the License, or
  23     (at your option) any later version.
  24
  25     This program is distributed in the hope that it will be useful,
  26     but WITHOUT ANY WARRANTY; without even the implied warranty of
  27     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  28
  29     See the GNU General Public License in the COPYING file at the
  30     root directory of this project for more details.
  31 */
  32
  33 #include <usb.h>
  34 #include <stdio.h>
  35 #include <unistd.h>
  36
  37 #define VENDOR_RIM              0x0fca
  38 #define PRODUCT_RIM_BLACKBERRY  0x0001
  39 #define PRODUCT_RIM_PEARL       0x0006
  40
  41 #define BLACKBERRY_INTERFACE            0
  42 #define BLACKBERRY_CONFIGURATION        1
  43
  44 void charge(struct usb_device *dev)
  45 {
  46         usb_dev_handle *handle = usb_open(dev);
  47         if( !handle )
  48                 return;
  49
  50         // the special sauce... these 3 steps seem to do the trick
  51         // for the 7750 series... needs testing on others
  52         char buffer[2];
  53         usb_control_msg(handle, 0xc0, 0xa5, 0, 1, buffer, 2, 100);
  54         usb_control_msg(handle, 0x40, 0xa2, 0, 1, buffer, 0, 100);
  55         usb_set_configuration(handle, BLACKBERRY_CONFIGURATION);
  56
  57         // the Blackberry Pearl doesn't reset itself after the above,
  58         // so do it ourselves
  59         if( dev->descriptor.idProduct == PRODUCT_RIM_PEARL) {
  60                 usb_reset(handle);
  61         }
  62
  63         // let it reset itself
  64         sleep(3);
  65
  66         // cleanup
  67         usb_close(handle);
  68 }
  69
  70 int main()
  71 {
  72         struct usb_bus *busses;
  73
  74         usb_init();
  75         usb_find_busses();
  76         usb_find_devices();
  77         busses = usb_get_busses();
  78
  79         printf("Scanning for Blackberry devices...\n");
  80         int found = 0;
  81
  82         struct usb_bus *bus;
  83         for( bus = busses; bus; bus = bus->next ) {
  84                 struct usb_device *dev;
  85
  86                 for (dev = bus->devices; dev; dev = dev->next) {
  87                         // Is this a blackberry?
  88                         if( dev->descriptor.idVendor == VENDOR_RIM &&
  89                             (dev->descriptor.idProduct == PRODUCT_RIM_BLACKBERRY ||
  90                              dev->descriptor.idProduct == PRODUCT_RIM_PEARL) ) {
  91                                 printf("Found...");
  92                                 if( dev->config &&
  93                                     dev->descriptor.bNumConfigurations >= 1 &&
  94                                     dev->config[0].MaxPower < 250 ) {
  95                                         printf("attempting to adjust charge setting.\n");
  96                                         charge(dev);
  97                                         found++;
  98                                 }
  99                                 else {
 100                                         printf("already at 500mA\n");
 101                                 }
 102                         }
 103                 }
 104         }
 105
 106         printf("%d device%s adjusted.\n", found, found > 1 ? "s" : "");
 107 }
 108