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
  38 /* TODO: Other bootloaders need to be adjusted to set this variable to true
  39    on a button press - currently only the ipod, H10 and Sansa versions do. */
  40 #if defined(IPOD_ARCH) || defined(IRIVER_H10)  || defined(IRIVER_H10_5GB) \
  41  || defined(SANSA_E200) || defined(SANSA_C200) || defined(GIGABEAT_F) \
  42  || defined(PHILIPS_SA9200) || (CONFIG_CPU == AS3525) || defined(COWON_D2) \
  43  || defined(MROBE_100) || defined(PHILIPS_HDD1630) || defined(MROBE_500) \
  44  || defined(ONDA_VX747)
  45 bool verbose = false;
  46 #else
  47 bool verbose = true;
  48 #endif
  49
  50 int line = 0;
  51 #ifdef HAVE_REMOTE_LCD
  52 int remote_line = 0;
  53 #endif
  54
  55 char printfbuf[256];
  56
  57 void reset_screen(void)
  58 {
  59     lcd_clear_display();
  60     line = 0;
  61 #ifdef HAVE_REMOTE_LCD
  62     lcd_remote_clear_display();
  63     remote_line = 0;
  64 #endif
  65 }
  66
  67 void printf(const char *format, ...)
  68 {
  69     int len;
  70     unsigned char *ptr;
  71     va_list ap;
  72     va_start(ap, format);
  73
  74     ptr = printfbuf;
  75     len = vsnprintf(ptr, sizeof(printfbuf), format, ap);
  76     va_end(ap);
  77
  78     lcd_puts(0, line++, ptr);
  79     if (verbose)
  80         lcd_update();
  81     if(line >= LCD_HEIGHT/SYSFONT_HEIGHT)
  82         line = 0;
  83 #ifdef HAVE_REMOTE_LCD
  84     lcd_remote_puts(0, remote_line++, ptr);
  85     if (verbose)
  86         lcd_remote_update();
  87     if(remote_line >= LCD_REMOTE_HEIGHT/SYSFONT_HEIGHT)
  88         remote_line = 0;
  89 #endif
  90 }
  91
  92 char *strerror(int error)
  93 {
  94     switch(error)
  95     {
  96     case EOK:
  97         return "OK";
  98     case EFILE_NOT_FOUND:
  99         return "File not found";
 100     case EREAD_CHKSUM_FAILED:
 101         return "Read failed (chksum)";
 102     case EREAD_MODEL_FAILED:
 103         return "Read failed (model)";
 104     case EREAD_IMAGE_FAILED:
 105         return "Read failed (image)";
 106     case EBAD_CHKSUM:
 107         return "Bad checksum";
 108     case EFILE_TOO_BIG:
 109         return "File too big";
 110     case EINVALID_FORMAT:
 111         return "Invalid file format";
 112     default:
 113         return "Unknown";
 114     }
 115 }
 116
 117 void error(int errortype, int error)
 118 {
 119     switch(errortype)
 120     {
 121     case EATA:
 122         printf("ATA error: %d", error);
 123         break;
 124
 125     case EDISK:
 126         printf("No partition found");
 127         break;
 128
 129     case EBOOTFILE:
 130         printf(strerror(error));
 131         break;
 132     }
 133
 134     lcd_update();
 135     sleep(5*HZ);
 136     power_off();
 137 }
 138
 139 /* Load firmware image in a format created by tools/scramble */
 140 int load_firmware(unsigned char* buf, char* firmware, int buffer_size)
 141 {
 142     int fd;
 143     int rc;
 144     int len;
 145     unsigned long chksum;
 146     char model[5];
 147     unsigned long sum;
 148     int i;
 149     char filename[MAX_PATH];
 150
 151     snprintf(filename,sizeof(filename), BOOTDIR "/%s",firmware);
 152     fd = open(filename, O_RDONLY);
 153     if(fd < 0)
 154     {
 155         snprintf(filename,sizeof(filename),"/%s",firmware);
 156         fd = open(filename, O_RDONLY);
 157         if(fd < 0)
 158             return EFILE_NOT_FOUND;
 159     }
 160
 161     len = filesize(fd) - 8;
 162
 163     printf("Length: %x", len);
 164
 165     if (len > buffer_size)
 166         return EFILE_TOO_BIG;
 167
 168     lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
 169
 170     rc = read(fd, &chksum, 4);
 171     chksum=betoh32(chksum); /* Rockbox checksums are big-endian */
 172     if(rc < 4)
 173         return EREAD_CHKSUM_FAILED;
 174
 175     printf("Checksum: %x", chksum);
 176
 177     rc = read(fd, model, 4);
 178     if(rc < 4)
 179         return EREAD_MODEL_FAILED;
 180
 181     model[4] = 0;
 182
 183     printf("Model name: %s", model);
 184     printf("Loading %s", firmware);
 185
 186     lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
 187
 188     rc = read(fd, buf, len);
 189     if(rc < len)
 190         return EREAD_IMAGE_FAILED;
 191
 192     close(fd);
 193
 194     sum = MODEL_NUMBER;
 195
 196     for(i = 0;i < len;i++) {
 197         sum += buf[i];
 198     }
 199
 200     printf("Sum: %x", sum);
 201
 202     if(sum != chksum)
 203         return EBAD_CHKSUM;
 204
 205     return EOK;
 206 }
 207
 208 /* Load raw binary image. */
 209 int load_raw_firmware(unsigned char* buf, char* firmware, int buffer_size)
 210 {
 211     int fd;
 212     int rc;
 213     int len;
 214     char filename[MAX_PATH];
 215
 216     snprintf(filename,sizeof(filename),"%s",firmware);
 217     fd = open(filename, O_RDONLY);
 218     if(fd < 0)
 219     {
 220         return EFILE_NOT_FOUND;
 221     }
 222
 223     len = filesize(fd);
 224
 225     if (len > buffer_size)
 226         return EFILE_TOO_BIG;
 227
 228     rc = read(fd, buf, len);
 229     if(rc < len)
 230         return EREAD_IMAGE_FAILED;
 231
 232     close(fd);
 233     return len;
 234 }
 235
 236 /* These functions are present in the firmware library, but we reimplement
 237    them here because the originals do a lot more than we want */
 238 int dbg_ports(void)
 239 {
 240    return 0;
 241 }
 242
 243 void mpeg_stop(void)
 244 {
 245 }
 246
 247 #ifdef ROCKBOX_HAS_LOGF /* Logf display helper for the bootloader */
 248
 249 #define LINES   (LCD_HEIGHT/SYSFONT_HEIGHT)
 250 #define COLUMNS ((LCD_WIDTH/SYSFONT_WIDTH) > MAX_LOGF_ENTRY ? \
 251                             MAX_LOGF_ENTRY : (LCD_WIDTH/SYSFONT_WIDTH))
 252
 253 #ifdef ONDA_VX747
 254 #define LOGF_UP     BUTTON_VOL_UP
 255 #define LOGF_DOWN   BUTTON_VOL_DOWN
 256 #define LOGF_CLEAR  BUTTON_MENU
 257 #else
 258 #warning No keymap defined for this target
 259 #endif
 260
 261 void display_logf(void) /* Doesn't return! */
 262 {
 263     int i, index, button, user_index=0;
 264 #ifdef HAVE_TOUCHSCREEN
 265     int touch, prev_y=0;
 266 #endif
 267     char buffer[COLUMNS+1];
 268
 269     while(1)
 270     {
 271         index = logfindex + user_index;
 272
 273         lcd_clear_display();
 274         for(i = LINES-1; i>=0; i--)
 275         {
 276             if(--index < 0)
 277             {
 278                 if(logfwrap)
 279                     index = MAX_LOGF_LINES-1;
 280                 else
 281                     break; /* done */
 282             }
 283
 284             memcpy(buffer, logfbuffer[index], COLUMNS);
 285
 286             if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_CONTINUE_LINE)
 287                 buffer[MAX_LOGF_ENTRY-1] = '>';
 288             else if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_MULTI_LINE)
 289                 buffer[MAX_LOGF_ENTRY-1] = '\0';
 290
 291             buffer[COLUMNS] = '\0';
 292
 293             lcd_puts(0, i, buffer);
 294         }
 295
 296         button = button_get(false);
 297         if(button == SYS_USB_CONNECTED)
 298             usb_acknowledge(SYS_USB_CONNECTED_ACK);
 299         else if(button == SYS_USB_DISCONNECTED)
 300             usb_acknowledge(SYS_USB_DISCONNECTED_ACK);
 301         else if(button & LOGF_UP)
 302             user_index++;
 303         else if(button & LOGF_DOWN)
 304             user_index--;
 305         else if(button & LOGF_CLEAR)
 306             user_index = 0;
 307 #ifdef HAVE_TOUCHSCREEN
 308         else if(button & BUTTON_TOUCHSCREEN)
 309         {
 310             touch = button_get_data();
 311
 312             if(button & BUTTON_REL)
 313                 prev_y = 0;
 314
 315             if(prev_y != 0)
 316                 user_index += (prev_y - (touch & 0xFFFF)) / SYSFONT_HEIGHT;
 317             prev_y = touch & 0xFFFF;
 318         }
 319 #endif
 320
 321         lcd_update();
 322         sleep(HZ/16);
 323     }
 324 }
 325 #endif