Source Code for Module icaro-bloques.docker

  1  #!/usr/bin/env python 
  2  # -*- coding: utf-8 -*- 
  3  # 
  4  #  docker.py 
  5  #   
  6  #  Copyright 2012 Valentin Basel <valentinbasel@gmail.com> 
  7  #   
  8  #  This program is free software; you can redistribute it and/or modify 
  9  #  it under the terms of the GNU General Public License as published by 
 10  #  the Free Software Foundation; either version 2 of the License, or 
 11  #  (at your option) any later version. 
 12  #   
 13  #  This program is distributed in the hope that it will be useful, 
 14  #  but WITHOUT ANY WARRANTY; without even the implied warranty of 
 15  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 16  #  GNU General Public License for more details. 
 17  #   
 18  #  You should have received a copy of the GNU General Public License 
 19  #  along with this program; if not, write to the Free Software 
 20  #  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
 21  #  MA 02110-1301, USA. 
 22  #   
 23  #   
 24  # tomado del proyecto de Jean-Pierre MANDON <jp.mandon@gmail.com>  para un docker en python 
 25  #proyecto original en : 
 26  # http://code.google.com/p/vascodownloader/ 
 27  # based on the DOCKER software licensed by Pierre Gaufillet <pierre.gaufillet@magic.fr>  
 28  # original project hosted on gforge 
 29  # http://gforge.enseeiht.fr/projects/vasco/ 
 30   
 31   
 32  import sys 
 33  import os 
 34  import usb 
 35  import time 
 36   
 37  # USB endpoint 
 38   
 39  BULK_IN_EP = 0x82 
 40  BULK_OUT_EP = 0x01 
 41   
 42  # comandos para el Bootloader  
 43  ERASE_FLASH_CMD=0 
 44  WRITE_FLASH_CMD=1 
 45  LEER_FLASH_CMD=2 
 46  VALID_APPLICATION_CMD=3 
 47  RESET_CMD=4 
 48  SECTION_DESCRIPTOR_CMD=5 
 49   
 50  vendor=int("0x04D8",16) 
 51  product=int("0xFEAA",16) 
 52 -def borrar(adresse,manejador): 
 53      leerbyte0=ERASE_FLASH_CMD 
 54      adresse="%06X"%adresse 
 55      leerbyte1=int(adresse[4:6],16) 
 56      leerbyte2=int(adresse[2:4],16) 
 57      leerbyte3=int(adresse[0:2],16) 
 58      manejador.bulkWrite(BULK_OUT_EP,chr(leerbyte0)+chr(leerbyte1)+chr(leerbyte2)+chr(leerbyte3),200)     
 59   
 60 -def CargaArchivo(file,manejador):   
 61      data=[] 
 62      oldadd=0 
 63      maxadd=0 
 64      fichero=open(file,'r') 
 65      lines=fichero.readlines() 
 66      fichero.close() 
 67      for line in lines: 
 68          nb=int(line[1:3],16) 
 69          add=int(line[3:7],16) 
 70          if (add>oldadd) and (add<0x8000): 
 71              maxadd=add+nb 
 72              oldadd=add 
 73      maxadd=maxadd+64-(maxadd%64)             
 74      for i in range(maxadd): 
 75          data.append(0xFF) 
 76      for line in lines: 
 77          nb=int(line[1:3],16) 
 78          add=int(line[3:7],16) 
 79          if add>=0x2000 and add<0x8000: 
 80              for i in range(0,nb): 
 81                  data[add+i]=int(line[9+(2*i):11+(2*i)],16) 
 82      index=0 
 83      frame=[] 
 84      for i in range(0x2000,maxadd): 
 85          if i%64==0: 
 86              borrar(i,manejador) 
 87          if i%32==0: 
 88              index=0 
 89              if frame!=[]: 
 90                  EscribeUSB(i-32,frame,manejador) 
 91              frame=[] 
 92          if data[i]!=[]: 
 93              frame.append(data[i]) 
 94          index+=1  
 95      print "el archivo fue cargado con exito" 
 96 -def EscribeUSB(adresse,bloc,manejador): 
 97      leerbyte0=WRITE_FLASH_CMD  
 98      adresse="%06X"%adresse 
 99      leerbyte1=int(adresse[4:6],16) 
100      leerbyte2=int(adresse[2:4],16) 
101      leerbyte3=int(adresse[0:2],16) 
102      frame=chr(leerbyte0)+chr(leerbyte1)+chr(leerbyte2)+chr(leerbyte3) 
103      for i in range(32): 
104          frame=frame+chr(bloc[i]) 
105      manejador.bulkWrite(BULK_OUT_EP,frame,200) 
106   
107 -def docker(archivo): 
108      np05=None 
109      buses=usb.busses() 
110      for bus in buses: 
111          for device in bus.devices: 
112              if device.idVendor==vendor and device.idProduct==product: 
113                  np05= device 
114      if np05==None: 
115          print "no esta el pic" 
116          return 1 
117      try: 
118          manejador=np05.open() 
119          manejador.setConfiguration(2) 
120          manejador.claimInterface(0) 
121      except Exception, ex: 
122          print "error al leer el pic" 
123          return 2 
124      try: 
125           
126          CargaArchivo(archivo,manejador) 
127          manejador.releaseInterface() 
128      except Exception, ex: 
129          return 3 
130   
131      return 0 
132