bootloader/common.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id: main.c 11997 2007-01-13 09:08:18Z miipekk $
   9  *
  10  * Copyright (C) 2005 by Linus Nielsen Feltzing
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "lcd.h"
  22 #include "lcd-remote.h"
  23 #include "font.h"
  24 #include "system.h"
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include <stdbool.h>
  28 #include "cpu.h"
  29 #include "common.h"
  30 #include "power.h"
  31 #include "kernel.h"
  32 #include "config.h"
  33 #include "logf.h"
  34 #include "button.h"
  35 #include "string.h"
  36 #include "usb.h"
  37 #include "file.h"
  38
  39 /* TODO: Other bootloaders need to be adjusted to set this variable to true
  40    on a button press - currently only the ipod, H10 and Sansa versions do. */
  41 #if defined(IPOD_ARCH) || defined(IRIVER_H10)  || defined(IRIVER_H10_5GB) \
  42  || defined(SANSA_E200) || defined(SANSA_C200) || defined(GIGABEAT_F) \
  43  || defined(PHILIPS_SA9200) || (CONFIG_CPU == AS3525) || defined(COWON_D2) \
  44  || defined(MROBE_100) || defined(PHILIPS_HDD1630) || defined(MROBE_500) \
  45  || defined(SAMSUNG_YH925) || defined(SAMSUNG_YH920) || defined(SAMSUNG_YH820) \
  46  || defined(ONDA_VX747)
  47 bool verbose = false;
  48 #else
  49 bool verbose = true;
  50 #endif
  51
  52 int line = 0;
  53 #ifdef HAVE_REMOTE_LCD
  54 int remote_line = 0;
  55 #endif
  56
  57 char printfbuf[256];
  58
  59 void reset_screen(void)
  60 {
  61     lcd_clear_display();
  62     line = 0;
  63 #ifdef HAVE_REMOTE_LCD
  64     lcd_remote_clear_display();
  65     remote_line = 0;
  66 #endif
  67 }
  68
  69 void printf(const char *format, ...)
  70 {
  71     int len;
  72     unsigned char *ptr;
  73     va_list ap;
  74     va_start(ap, format);
  75
  76     ptr = printfbuf;
  77     len = vsnprintf(ptr, sizeof(printfbuf), format, ap);
  78     va_end(ap);
  79
  80     lcd_puts(0, line++, ptr);
  81     if (verbose)
  82         lcd_update();
  83     if(line >= LCD_HEIGHT/SYSFONT_HEIGHT)
  84         line = 0;
  85 #ifdef HAVE_REMOTE_LCD
  86     lcd_remote_puts(0, remote_line++, ptr);
  87     if (verbose)
  88         lcd_remote_update();
  89     if(remote_line >= LCD_REMOTE_HEIGHT/SYSFONT_HEIGHT)
  90         remote_line = 0;
  91 #endif
  92 }
  93
  94 char *strerror(int error)
  95 {
  96     switch(error)
  97     {
  98     case EOK:
  99         return "OK";
 100     case EFILE_NOT_FOUND:
 101         return "File not found";
 102     case EREAD_CHKSUM_FAILED:
 103         return "Read failed (chksum)";
 104     case EREAD_MODEL_FAILED:
 105         return "Read failed (model)";
 106     case EREAD_IMAGE_FAILED:
 107         return "Read failed (image)";
 108     case EBAD_CHKSUM:
 109         return "Bad checksum";
 110     case EFILE_TOO_BIG:
 111         return "File too big";
 112     case EINVALID_FORMAT:
 113         return "Invalid file format";
 114     default:
 115         return "Unknown";
 116     }
 117 }
 118
 119 void error(int errortype, int error)
 120 {
 121     switch(errortype)
 122     {
 123     case EATA:
 124         printf("ATA error: %d", error);
 125         break;
 126
 127     case EDISK:
 128         printf("No partition found");
 129         break;
 130
 131     case EBOOTFILE:
 132         printf(strerror(error));
 133         break;
 134     }
 135
 136     lcd_update();
 137     sleep(5*HZ);
 138     power_off();
 139 }
 140
 141 /* Load firmware image in a format created by tools/scramble */
 142 int load_firmware(unsigned char* buf, char* firmware, int buffer_size)
 143 {
 144     int fd;
 145     int rc;
 146     int len;
 147     unsigned long chksum;
 148     char model[5];
 149     unsigned long sum;
 150     int i;
 151     char filename[MAX_PATH];
 152
 153     snprintf(filename,sizeof(filename), BOOTDIR "/%s",firmware);
 154     fd = open(filename, O_RDONLY);
 155     if(fd < 0)
 156     {
 157         snprintf(filename,sizeof(filename),"/%s",firmware);
 158         fd = open(filename, O_RDONLY);
 159         if(fd < 0)
 160             return EFILE_NOT_FOUND;
 161     }
 162
 163     len = filesize(fd) - 8;
 164
 165     printf("Length: %x", len);
 166
 167     if (len > buffer_size)
 168         return EFILE_TOO_BIG;
 169
 170     lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
 171
 172     rc = read(fd, &chksum, 4);
 173     chksum=betoh32(chksum); /* Rockbox checksums are big-endian */
 174     if(rc < 4)
 175         return EREAD_CHKSUM_FAILED;
 176
 177     printf("Checksum: %x", chksum);
 178
 179     rc = read(fd, model, 4);
 180     if(rc < 4)
 181         return EREAD_MODEL_FAILED;
 182
 183     model[4] = 0;
 184
 185     printf("Model name: %s", model);
 186     printf("Loading %s", firmware);
 187
 188     lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
 189
 190     rc = read(fd, buf, len);
 191     if(rc < len)
 192         return EREAD_IMAGE_FAILED;
 193
 194     close(fd);
 195
 196     sum = MODEL_NUMBER;
 197
 198     for(i = 0;i < len;i++) {
 199         sum += buf[i];
 200     }
 201
 202     printf("Sum: %x", sum);
 203
 204     if(sum != chksum)
 205         return EBAD_CHKSUM;
 206
 207     return EOK;
 208 }
 209
 210 /* Load raw binary image. */
 211 int load_raw_firmware(unsigned char* buf, char* firmware, int buffer_size)
 212 {
 213     int fd;
 214     int rc;
 215     int len;
 216     char filename[MAX_PATH];
 217
 218     snprintf(filename,sizeof(filename),"%s",firmware);
 219     fd = open(filename, O_RDONLY);
 220     if(fd < 0)
 221     {
 222         return EFILE_NOT_FOUND;
 223     }
 224
 225     len = filesize(fd);
 226
 227     if (len > buffer_size)
 228         return EFILE_TOO_BIG;
 229
 230     rc = read(fd, buf, len);
 231     if(rc < len)
 232         return EREAD_IMAGE_FAILED;
 233
 234     close(fd);
 235     return len;
 236 }
 237
 238 /* These functions are present in the firmware library, but we reimplement
 239    them here because the originals do a lot more than we want */
 240 int dbg_ports(void)
 241 {
 242    return 0;
 243 }
 244
 245 void mpeg_stop(void)
 246 {
 247 }
 248
 249 #ifdef ROCKBOX_HAS_LOGF /* Logf display helper for the bootloader */
 250
 251 #define LINES   (LCD_HEIGHT/SYSFONT_HEIGHT)
 252 #define COLUMNS ((LCD_WIDTH/SYSFONT_WIDTH) > MAX_LOGF_ENTRY ? \
 253                             MAX_LOGF_ENTRY : (LCD_WIDTH/SYSFONT_WIDTH))
 254
 255 #ifdef ONDA_VX747
 256 #define LOGF_UP     BUTTON_VOL_UP
 257 #define LOGF_DOWN   BUTTON_VOL_DOWN
 258 #define LOGF_CLEAR  BUTTON_MENU
 259 #else
 260 #warning No keymap defined for this target
 261 #endif
 262
 263 void display_logf(void) /* Doesn't return! */
 264 {
 265     int i, index, button, user_index=0;
 266 #ifdef HAVE_TOUCHSCREEN
 267     int touch, prev_y=0;
 268 #endif
 269     char buffer[COLUMNS+1];
 270
 271     while(1)
 272     {
 273         index = logfindex + user_index;
 274
 275         lcd_clear_display();
 276         for(i = LINES-1; i>=0; i--)
 277         {
 278             if(--index < 0)
 279             {
 280                 if(logfwrap)
 281                     index = MAX_LOGF_LINES-1;
 282                 else
 283                     break; /* done */
 284             }
 285
 286             memcpy(buffer, logfbuffer[index], COLUMNS);
 287
 288             if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_CONTINUE_LINE)
 289                 buffer[MAX_LOGF_ENTRY-1] = '>';
 290             else if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_MULTI_LINE)
 291                 buffer[MAX_LOGF_ENTRY-1] = '\0';
 292
 293             buffer[COLUMNS] = '\0';
 294
 295             lcd_puts(0, i, buffer);
 296         }
 297
 298         button = button_get(false);
 299         if(button == SYS_USB_CONNECTED)
 300             usb_acknowledge(SYS_USB_CONNECTED_ACK);
 301         else if(button == SYS_USB_DISCONNECTED)
 302             usb_acknowledge(SYS_USB_DISCONNECTED_ACK);
 303         else if(button & LOGF_UP)
 304             user_index++;
 305         else if(button & LOGF_DOWN)
 306             user_index--;
 307         else if(button & LOGF_CLEAR)
 308             user_index = 0;
 309 #ifdef HAVE_TOUCHSCREEN
 310         else if(button & BUTTON_TOUCHSCREEN)
 311         {
 312             touch = button_get_data();
 313
 314             if(button & BUTTON_REL)
 315                 prev_y = 0;
 316
 317             if(prev_y != 0)
 318                 user_index += (prev_y - (touch & 0xFFFF)) / SYSFONT_HEIGHT;
 319             prev_y = touch & 0xFFFF;
 320         }
 321 #endif
 322
 323         lcd_update();
 324         sleep(HZ/16);
 325     }
 326 }
 327 #endif