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  || (CONFIG_CPU == AS3525) || defined(COWON_D2) \
  44  || defined(MROBE_100) || defined(MROBE_500) \
  45  || defined(SAMSUNG_YH925) || defined(SAMSUNG_YH920) \
  46  || defined(SAMSUNG_YH820) || defined(PHILIPS_SA9200) \
  47  || defined(PHILIPS_HDD1630) || defined(PHILIPS_HDD6330) \
  48  || defined(ONDA_VX747) || defined(SANSA_CLIPPLUS)
  49 bool verbose = false;
  50 #else
  51 bool verbose = true;
  52 #endif
  53
  54 int line = 0;
  55 #ifdef HAVE_REMOTE_LCD
  56 int remote_line = 0;
  57 #endif
  58
  59 char printfbuf[256];
  60
  61 void reset_screen(void)
  62 {
  63     lcd_clear_display();
  64     line = 0;
  65 #ifdef HAVE_REMOTE_LCD
  66     lcd_remote_clear_display();
  67     remote_line = 0;
  68 #endif
  69 }
  70
  71 void printf(const char *format, ...)
  72 {
  73     int len;
  74     unsigned char *ptr;
  75     va_list ap;
  76     va_start(ap, format);
  77
  78     ptr = printfbuf;
  79     len = vsnprintf(ptr, sizeof(printfbuf), format, ap);
  80     va_end(ap);
  81
  82     lcd_puts(0, line++, ptr);
  83     if (verbose)
  84         lcd_update();
  85     if(line >= LCD_HEIGHT/SYSFONT_HEIGHT)
  86         line = 0;
  87 #ifdef HAVE_REMOTE_LCD
  88     lcd_remote_puts(0, remote_line++, ptr);
  89     if (verbose)
  90         lcd_remote_update();
  91     if(remote_line >= LCD_REMOTE_HEIGHT/SYSFONT_HEIGHT)
  92         remote_line = 0;
  93 #endif
  94 }
  95
  96 char *strerror(int error)
  97 {
  98     switch(error)
  99     {
 100     case EOK:
 101         return "OK";
 102     case EFILE_NOT_FOUND:
 103         return "File not found";
 104     case EREAD_CHKSUM_FAILED:
 105         return "Read failed (chksum)";
 106     case EREAD_MODEL_FAILED:
 107         return "Read failed (model)";
 108     case EREAD_IMAGE_FAILED:
 109         return "Read failed (image)";
 110     case EBAD_CHKSUM:
 111         return "Bad checksum";
 112     case EFILE_TOO_BIG:
 113         return "File too big";
 114     case EINVALID_FORMAT:
 115         return "Invalid file format";
 116     default:
 117         return "Unknown";
 118     }
 119 }
 120
 121 void error(int errortype, int error)
 122 {
 123     switch(errortype)
 124     {
 125     case EATA:
 126         printf("ATA error: %d", error);
 127         break;
 128
 129     case EDISK:
 130         printf("No partition found");
 131         break;
 132
 133     case EBOOTFILE:
 134         printf(strerror(error));
 135         break;
 136     }
 137
 138     lcd_update();
 139     sleep(5*HZ);
 140     power_off();
 141 }
 142
 143 /* Load firmware image in a format created by tools/scramble */
 144 int load_firmware(unsigned char* buf, char* firmware, int buffer_size)
 145 {
 146     int fd;
 147     int rc;
 148     int len;
 149     unsigned long chksum;
 150     char model[5];
 151     unsigned long sum;
 152     int i;
 153     char filename[MAX_PATH];
 154
 155     snprintf(filename,sizeof(filename), BOOTDIR "/%s",firmware);
 156     fd = open(filename, O_RDONLY);
 157     if(fd < 0)
 158     {
 159         snprintf(filename,sizeof(filename),"/%s",firmware);
 160         fd = open(filename, O_RDONLY);
 161         if(fd < 0)
 162             return EFILE_NOT_FOUND;
 163     }
 164
 165     len = filesize(fd) - 8;
 166
 167     printf("Length: %x", len);
 168
 169     if (len > buffer_size)
 170         return EFILE_TOO_BIG;
 171
 172     lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
 173
 174     rc = read(fd, &chksum, 4);
 175     chksum=betoh32(chksum); /* Rockbox checksums are big-endian */
 176     if(rc < 4)
 177         return EREAD_CHKSUM_FAILED;
 178
 179     printf("Checksum: %x", chksum);
 180
 181     rc = read(fd, model, 4);
 182     if(rc < 4)
 183         return EREAD_MODEL_FAILED;
 184
 185     model[4] = 0;
 186
 187     printf("Model name: %s", model);
 188     printf("Loading %s", firmware);
 189
 190     lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
 191
 192     rc = read(fd, buf, len);
 193     if(rc < len)
 194         return EREAD_IMAGE_FAILED;
 195
 196     close(fd);
 197
 198     sum = MODEL_NUMBER;
 199
 200     for(i = 0;i < len;i++) {
 201         sum += buf[i];
 202     }
 203
 204     printf("Sum: %x", sum);
 205
 206     if(sum != chksum)
 207         return EBAD_CHKSUM;
 208
 209     return EOK;
 210 }
 211
 212 /* Load raw binary image. */
 213 int load_raw_firmware(unsigned char* buf, char* firmware, int buffer_size)
 214 {
 215     int fd;
 216     int rc;
 217     int len;
 218     char filename[MAX_PATH];
 219
 220     snprintf(filename,sizeof(filename),"%s",firmware);
 221     fd = open(filename, O_RDONLY);
 222     if(fd < 0)
 223     {
 224         return EFILE_NOT_FOUND;
 225     }
 226
 227     len = filesize(fd);
 228
 229     if (len > buffer_size)
 230         return EFILE_TOO_BIG;
 231
 232     rc = read(fd, buf, len);
 233     if(rc < len)
 234         return EREAD_IMAGE_FAILED;
 235
 236     close(fd);
 237     return len;
 238 }
 239
 240 /* These functions are present in the firmware library, but we reimplement
 241    them here because the originals do a lot more than we want */
 242 int dbg_ports(void)
 243 {
 244    return 0;
 245 }
 246
 247 void mpeg_stop(void)
 248 {
 249 }
 250
 251 #ifdef ROCKBOX_HAS_LOGF /* Logf display helper for the bootloader */
 252
 253 #define LINES   (LCD_HEIGHT/SYSFONT_HEIGHT)
 254 #define COLUMNS ((LCD_WIDTH/SYSFONT_WIDTH) > MAX_LOGF_ENTRY ? \
 255                             MAX_LOGF_ENTRY : (LCD_WIDTH/SYSFONT_WIDTH))
 256
 257 #ifdef ONDA_VX747
 258 #define LOGF_UP     BUTTON_VOL_UP
 259 #define LOGF_DOWN   BUTTON_VOL_DOWN
 260 #define LOGF_CLEAR  BUTTON_MENU
 261 #else
 262 #warning No keymap defined for this target
 263 #endif
 264
 265 void display_logf(void) /* Doesn't return! */
 266 {
 267     int i, index, button, user_index=0;
 268 #ifdef HAVE_TOUCHSCREEN
 269     int touch, prev_y=0;
 270 #endif
 271     char buffer[COLUMNS+1];
 272
 273     while(1)
 274     {
 275         index = logfindex + user_index;
 276
 277         lcd_clear_display();
 278         for(i = LINES-1; i>=0; i--)
 279         {
 280             if(--index < 0)
 281             {
 282                 if(logfwrap)
 283                     index = MAX_LOGF_LINES-1;
 284                 else
 285                     break; /* done */
 286             }
 287
 288             memcpy(buffer, logfbuffer[index], COLUMNS);
 289
 290             if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_CONTINUE_LINE)
 291                 buffer[MAX_LOGF_ENTRY-1] = '>';
 292             else if (logfbuffer[index][MAX_LOGF_ENTRY] == LOGF_TERMINATE_MULTI_LINE)
 293                 buffer[MAX_LOGF_ENTRY-1] = '\0';
 294
 295             buffer[COLUMNS] = '\0';
 296
 297             lcd_puts(0, i, buffer);
 298         }
 299
 300         button = button_get(false);
 301         if(button == SYS_USB_CONNECTED)
 302             usb_acknowledge(SYS_USB_CONNECTED_ACK);
 303         else if(button == SYS_USB_DISCONNECTED)
 304             usb_acknowledge(SYS_USB_DISCONNECTED_ACK);
 305         else if(button & LOGF_UP)
 306             user_index++;
 307         else if(button & LOGF_DOWN)
 308             user_index--;
 309         else if(button & LOGF_CLEAR)
 310             user_index = 0;
 311 #ifdef HAVE_TOUCHSCREEN
 312         else if(button & BUTTON_TOUCHSCREEN)
 313         {
 314             touch = button_get_data();
 315
 316             if(button & BUTTON_REL)
 317                 prev_y = 0;
 318
 319             if(prev_y != 0)
 320                 user_index += (prev_y - (touch & 0xFFFF)) / SYSFONT_HEIGHT;
 321             prev_y = touch & 0xFFFF;
 322         }
 323 #endif
 324
 325         lcd_update();
 326         sleep(HZ/16);
 327     }
 328 }
 329 #endif