git.gag.com Git - fw/altos/blob - altoslib/AltosSelfFlash.java

   1 /*
   2  * Copyright © 2013 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.altoslib_2;
  19
  20 import java.io.*;
  21
  22 public class AltosSelfFlash extends AltosProgrammer {
  23         File                    file;
  24         FileInputStream         input;
  25         AltosHexfile            image;
  26         AltosLink               link;
  27         boolean                 aborted;
  28         AltosFlashListener      listener;
  29         AltosRomconfig          rom_config;
  30
  31         void action(String s, int percent) {
  32                 if (listener != null && !aborted)
  33                         listener.position(s, percent);
  34         }
  35
  36         void action(int part, int total) {
  37                 int percent = 100 * part / total;
  38                 action(String.format("%d/%d (%d%%)",
  39                                      part, total, percent),
  40                        percent);
  41         }
  42
  43         byte[] read_memory(long addr, int len) throws InterruptedException, IOException {
  44                 int b;
  45                 byte[]  data = new byte[len];
  46
  47                 for (int offset = 0; offset < len; offset += 0x100) {
  48                         link.printf("R %x\n", addr + offset);
  49                         byte[]  reply = link.get_binary_reply(5000, 0x100);
  50
  51                         if (reply == null)
  52                                 throw new IOException("Read device memory timeout");
  53                         for (b = 0; b < len; b++)
  54                                 data[b+offset] = reply[b];
  55                 }
  56                 return data;
  57         }
  58
  59         void write_memory(long addr, byte[] data, int start, int len) {
  60                 int b;
  61                 System.out.printf ("write_memory %x %d\n", addr, len);
  62                 link.printf("W %x\n", addr);
  63                 link.flush_output();
  64                 for (b = 0; b < len; b++)
  65                         link.putchar(data[start + b]);
  66                 for (; b < 0x100; b++)
  67                         link.putchar((byte) 0xff);
  68         }
  69
  70         void reboot() {
  71                 System.out.printf("reboot\n");
  72                 link.printf("a\n");
  73                 link.flush_output();
  74         }
  75
  76         public void flash() {
  77                 try {
  78                         if (!check_rom_config())
  79                                 throw new IOException("Invalid rom config settings");
  80
  81                         /*
  82                          * Store desired config values into image
  83                          */
  84                         rom_config.write(image);
  85
  86                         int remain = image.data.length;
  87                         long flash_addr = image.address;
  88                         int image_start = 0;
  89
  90                         action("start", 0);
  91                         action(0, image.data.length);
  92                         while (remain > 0 && !aborted) {
  93                                 int this_time = remain;
  94                                 if (this_time > 0x100)
  95                                         this_time = 0x100;
  96
  97                                 if (link != null) {
  98                                         /* write the data */
  99                                         write_memory(flash_addr, image.data, image_start, this_time);
 100
 101                                         byte[] check = read_memory(flash_addr, this_time);
 102                                         for (int i = 0; i < this_time; i++)
 103                                                 if (check[i] != image.data[image_start + i])
 104                                                         throw new IOException(String.format("Flash write failed at 0x%x (%02x != %02x)",
 105                                                                                             image.address + image_start + i,
 106                                                                                             check[i], image.data[image_start + i]));
 107                                 } else {
 108                                         Thread.sleep(100);
 109                                 }
 110
 111                                 remain -= this_time;
 112                                 flash_addr += this_time;
 113                                 image_start += this_time;
 114
 115                                 action(image.data.length - remain, image.data.length);
 116                         }
 117                         if (!aborted) {
 118                                 System.out.printf ("done\n");
 119                                 action("done", 100);
 120                         }
 121                         close();
 122                 } catch (IOException ie) {
 123                         action(ie.getMessage(), -1);
 124                         abort();
 125                 } catch (InterruptedException ie) {
 126                         abort();
 127                 }
 128         }
 129
 130         public void close() {
 131                 if (link != null) {
 132                         reboot();
 133                         link.close();
 134                         link = null;
 135                 }
 136         }
 137
 138         synchronized public void abort() {
 139                 aborted = true;
 140                 close();
 141         }
 142
 143         private AltosHexfile get_rom() {
 144                 System.out.printf("get rom\n");
 145                 try {
 146                         int base = AltosRomconfig.fetch_base(image);
 147                         int bounds = AltosRomconfig.fetch_bounds(image);
 148                         byte[] data = read_memory(base, bounds - base);
 149                         AltosHexfile hexfile = new AltosHexfile(data, base);
 150                         hexfile.add_symbols(image);
 151                         return hexfile;
 152                 } catch (AltosNoSymbol none) {
 153                         System.out.printf("no symbol %s\n", none.getMessage());
 154                         return null;
 155                 } catch (InterruptedException ie) {
 156                         return null;
 157                 } catch (IOException ie) {
 158                         return null;
 159                 }
 160
 161         }
 162
 163         public boolean check_rom_config() {
 164                 if (link == null) {
 165                         System.out.printf ("no link\n");
 166                         return true;
 167                 }
 168                 if (rom_config == null) {
 169                         AltosHexfile hexfile = get_rom();
 170                         if (hexfile != null)
 171                                 rom_config = new AltosRomconfig(hexfile);
 172                 }
 173                 return rom_config != null && rom_config.valid();
 174         }
 175
 176         public void set_romconfig (AltosRomconfig romconfig) {
 177                 rom_config = romconfig;
 178         }
 179
 180         public AltosRomconfig romconfig() {
 181                 System.out.printf("fetch romconfig\n");
 182                 if (!check_rom_config())
 183                         return null;
 184                 return rom_config;
 185         }
 186
 187         public AltosSelfFlash(File file, AltosLink link, AltosFlashListener listener)
 188                 throws IOException, FileNotFoundException, InterruptedException {
 189                 this.file = file;
 190                 this.link = link;
 191                 this.listener = listener;
 192                 input = new FileInputStream(file);
 193                 image = new AltosHexfile(input);
 194                 System.out.printf ("AltosSelfFlash %x\n", image.address);
 195         }
 196 }