sixpair.c
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00001 /*
00002  * Copyright (c) 2007, 2008 pascal@pabr.org
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *     * Redistributions of source code must retain the above copyright
00009  *       notice, this list of conditions and the following disclaimer.
00010  *     * Redistributions in binary form must reproduce the above copyright
00011  *       notice, this list of conditions and the following disclaimer in the
00012  *       documentation and/or other materials provided with the distribution.
00013  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00014  *       contributors may be used to endorse or promote products derived from
00015  *       this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #include <string.h>
00031 #include <unistd.h>
00032 #include <stdio.h>
00033 #include <usb.h>
00034 
00035 #define VENDOR 0x054c
00036 #define PRODUCT 0x0268
00037 
00038 #define USB_DIR_IN 0x80
00039 #define USB_DIR_OUT 0
00040 
00041 void fatal(char *msg) { perror(msg); exit(1); }
00042 
00043 void show_master(usb_dev_handle *devh, int itfnum) {
00044   printf("Current Bluetooth master: ");
00045   unsigned char msg[8];
00046   int res = usb_control_msg
00047     (devh, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
00048      0x01, 0x03f5, itfnum, (void*)msg, sizeof(msg), 5000);
00049   if ( res < 0 ) { perror("USB_REQ_GET_CONFIGURATION"); return; }
00050   printf("%02x:%02x:%02x:%02x:%02x:%02x\n",
00051          msg[2], msg[3], msg[4], msg[5], msg[6], msg[7]);
00052 }
00053 
00054 void set_master(usb_dev_handle *devh, int itfnum, int mac[6]) {
00055   printf("Setting master bd_addr to %02x:%02x:%02x:%02x:%02x:%02x\n",
00056          mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
00057   char msg[8]= { 0x01, 0x00, mac[0],mac[1],mac[2],mac[3],mac[4],mac[5] };
00058   int res = usb_control_msg
00059     (devh,
00060      USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
00061      0x09,
00062      0x03f5, itfnum, msg, sizeof(msg),
00063      5000);
00064   if ( res < 0 ) fatal("USB_REQ_SET_CONFIGURATION");
00065 }
00066 
00067 void process_device(int argc, char **argv, struct usb_device *dev,
00068                     struct usb_config_descriptor *cfg, int itfnum) {
00069   int mac[6];
00070 
00071   usb_dev_handle *devh = usb_open(dev);
00072   if ( ! devh ) fatal("usb_open");
00073 
00074   usb_detach_kernel_driver_np(devh, itfnum);
00075 
00076   int res = usb_claim_interface(devh, itfnum);
00077   if ( res < 0 ) fatal("usb_claim_interface");
00078 
00079   show_master(devh, itfnum);
00080 
00081   if ( argc >= 2 ) {
00082     if ( sscanf(argv[1], "%x:%x:%x:%x:%x:%x",
00083                 &mac[0],&mac[1],&mac[2],&mac[3],&mac[4],&mac[5]) != 6 ) {
00084 
00085       printf("usage: %s [<bd_addr of master>]\n", argv[0]);
00086       exit(1);
00087     }
00088   } else {
00089     FILE *f = popen("hcitool dev", "r");
00090     if ( !f ||
00091          fscanf(f, "%*s\n%*s %x:%x:%x:%x:%x:%x",
00092                 &mac[0],&mac[1],&mac[2],&mac[3],&mac[4],&mac[5]) != 6 ) {
00093       printf("Unable to retrieve local bd_addr from `hcitool dev`.\n");
00094       printf("Please enable Bluetooth or specify an address manually.\n");
00095       exit(1);
00096     }
00097     pclose(f);
00098   }
00099     
00100   set_master(devh, itfnum, mac);
00101 
00102   usb_close(devh);
00103 }
00104 
00105 int main(int argc, char *argv[]) {  
00106 
00107   usb_init();
00108   if ( usb_find_busses() < 0 ) fatal("usb_find_busses");
00109   if ( usb_find_devices() < 0 ) fatal("usb_find_devices");
00110   struct usb_bus *busses = usb_get_busses();
00111   if ( ! busses ) fatal("usb_get_busses");
00112 
00113   int found = 0;
00114 
00115   struct usb_bus *bus;
00116   for ( bus=busses; bus; bus=bus->next ) {
00117     struct usb_device *dev;
00118     for ( dev=bus->devices; dev; dev=dev->next) {
00119       struct usb_config_descriptor *cfg;
00120       for ( cfg = dev->config;
00121             cfg < dev->config + dev->descriptor.bNumConfigurations;
00122             ++cfg ) {
00123         int itfnum;
00124         for ( itfnum=0; itfnum<cfg->bNumInterfaces; ++itfnum ) {
00125           struct usb_interface *itf = &cfg->interface[itfnum];
00126           struct usb_interface_descriptor *alt;
00127           for ( alt = itf->altsetting;
00128                 alt < itf->altsetting + itf->num_altsetting;
00129                 ++alt ) {
00130             if ( dev->descriptor.idVendor == VENDOR &&
00131                  dev->descriptor.idProduct == PRODUCT &&
00132                  alt->bInterfaceClass == 3 ) {
00133               process_device(argc, argv, dev, cfg, itfnum);
00134               ++found;
00135             }
00136           }
00137         }
00138       }
00139     }
00140   }
00141 
00142   if ( ! found ) {
00143     printf("No controller found on USB busses. Please connect your joystick via USB.\n");
00144     return 1;
00145   }
00146 
00147   return 0;
00148 
00149 }
00150 


ps3joy
Author(s): Blaise Gassend, pascal@pabr.org, and Melonee Wise
autogenerated on Sat Dec 28 2013 17:06:56