/*
  usb_cnct.c

  2008.10.04-2008.10.08

*/


#include "config.h"
#include <stdio.h>
#include <string.h>
#include <usb.h>

#define  VENDOR_LIST "./usb.ids"

void check_list( FILE *,unsigned int,unsigned int);

////////////////////////////////////////////////////////////////////////////////
void check_list(FILE *fp, unsigned int vendor, unsigned int product)
{
  char line_buf[256];
  int i = 0;
  unsigned int get_num = 0;
  unsigned int vid_num = 0;
  unsigned int pid_num = 0;
  int v_flag = 0;
  int p_flag = 0;

  fseek(fp, 0L, SEEK_SET);

  while ( fgets( line_buf, 255, fp ) != NULL )
  {
    //// Product ID
    if ( v_flag == 1 )
    {
      pid_num = 0;
      if ( ( line_buf[0] == '\t' ) &&
          (( line_buf[1] >= '0' && line_buf[1] <= '9' ) || 
           ( line_buf[1] >= 'a' && line_buf[1] <= 'f' )   ))
      {
        for ( i = 0 ; i < 4 ; i++ )
        {
          if ( line_buf[i+1] >= '0' && line_buf[i+1] <= '9' )
          {
            get_num = (line_buf[i+1]-0x30) << (12-(i*4));
          }
          else if ( line_buf[i+1] >= 'a' && line_buf[i+1] <= 'f' )
          {
            get_num = (line_buf[i+1]-0x57) << (12-(i*4));
          }
          else
          {
            get_num = 0;
          }
          pid_num = pid_num + get_num;
        }

        if ( pid_num == product )
        {
          p_flag = 1;
          printf("    Product Name:%s\n",line_buf+7);
          break;
        }
      }
    }

    //// Vendor ID
    vid_num = 0;
    if (( line_buf[0] >= '0' && line_buf[0] <= '9' ) || 
        ( line_buf[0] >= 'a' && line_buf[0] <= 'f' )    )
    {
      for ( i = 0 ; i < 4 ; i++ )
      {
        if ( line_buf[i] >= '0' && line_buf[i] <= '9' )
        {
          get_num = (line_buf[i]-0x30) << (12-(i*4));
        }
        else if ( line_buf[i] >= 'a' && line_buf[i] <= 'f' )
        {
          get_num = (line_buf[i]-0x57) << (12-(i*4));
        }
        else
        {
          get_num = 0;
        }

        vid_num = vid_num + get_num;
      }
      
      if ( vid_num == vendor )
      {
        v_flag = 1;
        printf("    Vendor Name :%s",line_buf+6);
      }
    }
  }

  if ( v_flag == 0 )
    printf("    Vendor Name :--unknown--\n");
  if ( p_flag == 0 )
    printf("    Product Name:--unknown--\n\n");

}
////////////////////////////////////////////////////////////////////////////////
int main(void)
{
  // for initialize
  struct usb_bus *busses;
  // get each bus data
  struct usb_bus *bus;
  struct usb_device *dev;

  int ret_val;
  
  FILE *fp;
  int v_list_f = 1;
  unsigned int vendor_id;
  unsigned int product_id;

  printf("==USB Conected Device Check==\n");

  // initial and get all bus device
  usb_init();
  ret_val = usb_find_busses();
  printf("usb_find_busses return value=[%d]\n",ret_val);
  ret_val = usb_find_devices();
  printf("usb_find_devices return value=[%d]\n\n",ret_val);

  busses = usb_get_busses();

  if ( (fp=fopen(VENDOR_LIST,"rt")) == NULL )
  {
    fprintf(stderr,"Not found Vendor List File:%s\n\n",VENDOR_LIST);
    v_list_f = 0;
  }

  ////////
  printf("======== Conected Infomation ========\n");
  for ( bus = busses ; bus ; bus = bus->next )
  {    
    for ( dev = bus->devices ; dev ; dev = dev->next )
    {
      if ( dev->descriptor.idVendor != 0 )
      {
        printf("bus=[0x%x], ",bus);
        printf("dev=[0x%x]\n",dev);
        printf("  device file locate=[/dev/bus/usb/%s/%s]\n",bus->dirname,dev->filename);

        vendor_id = (unsigned int)dev->descriptor.idVendor;
        product_id = (unsigned int)dev->descriptor.idProduct;
        printf("  Vendor ID =[0x%04x]",vendor_id);
        printf("  Product ID=[0x%04x]\n",product_id);
        ////
        if ( v_list_f == 1)
          check_list(fp,vendor_id,product_id);

      }
    }

  }

  if ( v_list_f == 1 )
    fclose(fp);

  return 0;
}

==USB Conected Device Check==
usb_find_busses return value=[X]
usb_find_devices return value=[X]

======== Conected Infomation ========
bus=[0xXXXXXXX], dev=[0xXXXXXXX]
  device file locate=[/dev/bus/usb/XXX/XXX]
  Vendor ID =[0xXXXX]  Product ID=[0xXXXX]
    Vendor Name :XXXXXXXXXX
    Product Name:XXXXXXXXXX

bus=[0xXXXXXXX], dev=[0xXXXXXXX]
  device file locate=[/dev/bus/usb/XXX/XXX]
  Vendor ID =[0xXXXX]  Product ID=[0xXXXX]
    Vendor Name :XXXXXXXXXX
    Product Name:--unknown--

bus=[0xXXXXXXX], dev=[0xXXXXXXX]
  device file locate=[/dev/bus/usb/XXX/XXX]
  Vendor ID =[0xXXXX]  Product ID=[0xXXXX]
    Vendor Name :XXXXXXXXXX
    Product Name:XXXXXXXXXX