flash/bootbox/main.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Jörg Hohensohn  aka [IDC]Dragon
  11  *
  12  * This is "Bootbox", a minimalistic loader, rescue firmware for just
  13  *   booting into a full features one. Aside from that it does charging
  14  *   and USB mode, to enable copying the desired firmware.
  15  *
  16  * This program is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU General Public License
  18  * as published by the Free Software Foundation; either version 2
  19  * of the License, or (at your option) any later version.
  20  *
  21  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  22  * KIND, either express or implied.
  23  *
  24  ****************************************************************************/
  25 #include "config.h"
  26
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include "cpu.h"
  30 #include "system.h"
  31 #include "lcd.h"
  32 #include "kernel.h"
  33 #include "thread.h"
  34 #include "storage.h"
  35 #include "disk.h"
  36 #include "font.h"
  37 #include "adc.h"
  38 #include "button.h"
  39 #include "panic.h"
  40 #include "power.h"
  41 #include "file.h"
  42 #include "buffer.h"
  43 #include "rolo.h"
  44 #include "usb.h"
  45 #include "powermgmt.h"
  46
  47 static void usb_screen(void)
  48 {
  49     lcd_clear_display();
  50     lcd_puts(0, 0, "USB mode");
  51     lcd_update();
  52
  53     usb_acknowledge(SYS_USB_CONNECTED_ACK);
  54     while(usb_wait_for_disconnect_w_tmo(&button_queue, HZ)) {
  55     }
  56 }
  57
  58 static void show_logo(void)
  59 {
  60     lcd_clear_display();
  61     lcd_puts(0, 0, "Rockbox");
  62     lcd_puts(0, 1, "Rescue boot");
  63     lcd_update();
  64 }
  65
  66 #if CONFIG_CHARGING
  67 static void charging_screen(void)
  68 {
  69     unsigned int button;
  70     const char* msg;
  71
  72     ide_power_enable(false); /* power down the disk, else would be spinning */
  73
  74     lcd_clear_display();
  75
  76     do
  77     {
  78 #if CONFIG_CHARGING == CHARGING_CONTROL
  79         if (charge_state == CHARGING)
  80             msg = "charging";
  81         else if (charge_state == TOPOFF)
  82             msg = "topoff charge";
  83         else if (charge_state == TRICKLE)
  84             msg = "trickle charge";
  85         else
  86             msg = "not charging";
  87
  88 #else
  89         msg = "charging";
  90 #endif
  91         lcd_puts(0, 0, msg);
  92         {
  93             char buf[32];
  94             int battv = battery_voltage();
  95             snprintf(buf, sizeof(buf), "%d.%02dV %d%%",
  96                 battv / 1000, (battv % 1000) / 10, battery_level());
  97             lcd_puts(0, 1, buf);
  98         }
  99         lcd_update();
 100
 101         button = button_get_w_tmo(HZ/2);
 102 #ifdef BUTTON_ON
 103         if (button == (BUTTON_ON | BUTTON_REL))
 104 #else
 105         if (button == (BUTTON_RIGHT | BUTTON_REL))
 106 #endif
 107             break; /* start */
 108         else
 109         {
 110             if (usb_detect() == USB_INSERTED)
 111                 break;
 112             else if (!charger_inserted())
 113                 power_off(); /* charger removed: power down */
 114         }
 115     } while (1);
 116 }
 117 #endif /* CONFIG_CHARGING */
 118
 119 /* prompt user to plug USB and fix a problem */
 120 static void prompt_usb(const char* msg1, const char* msg2)
 121 {
 122     int button;
 123     lcd_clear_display();
 124     lcd_puts(0, 0, msg1);
 125     lcd_puts(0, 1, msg2);
 126 #ifdef HAVE_LCD_BITMAP
 127     lcd_puts(0, 2, "Insert USB cable");
 128     lcd_puts(0, 3, "and fix it.");
 129 #endif
 130     lcd_update();
 131     do
 132     {
 133         button = button_get(true);
 134         if (button == SYS_POWEROFF)
 135         {
 136             power_off();
 137         }
 138     } while (button != SYS_USB_CONNECTED);
 139     usb_screen();
 140     system_reboot();
 141 }
 142
 143 void main(void)
 144 {
 145     int rc;
 146
 147     power_init();
 148     system_init();
 149     kernel_init();
 150     buffer_init();
 151     lcd_init();
 152     show_logo();
 153     enable_irq();
 154     adc_init();
 155     usb_init();
 156     button_init();
 157     powermgmt_init();
 158
 159 #if CONFIG_CHARGING && (CONFIG_CPU == SH7034)
 160     if (charger_inserted()
 161 #ifdef ATA_POWER_PLAYERSTYLE
 162         && !ide_powered() /* relies on probing result from bootloader */
 163 #endif
 164         )
 165     {
 166         charging_screen(); /* display a "charging" screen */
 167         show_logo();  /* again, to provide better visual feedback */
 168     }
 169 #endif
 170
 171     rc = storage_init();
 172     if(rc)
 173     {
 174 #ifdef HAVE_LCD_BITMAP
 175         char str[32];
 176         lcd_clear_display();
 177         snprintf(str, 31, "ATA error: %d", rc);
 178         lcd_puts(0, 1, str);
 179         lcd_update();
 180         while(!(button_get(true) & BUTTON_REL));
 181 #endif
 182         panicf("storage: %d", rc);
 183     }
 184
 185     usb_start_monitoring();
 186     while (usb_detect() == USB_INSERTED)
 187     {   /* enter USB mode early, before trying to mount */
 188         if (button_get_w_tmo(HZ/10) == SYS_USB_CONNECTED)
 189         {
 190             usb_screen();
 191         }
 192     }
 193
 194     rc = disk_mount_all();
 195     if (rc<=0)
 196     {
 197         prompt_usb("No partition", "found.");
 198     }
 199
 200     {   // rolo the firmware
 201         static const char filename[] = "/" BOOTFILE;
 202         rolo_load((char*)filename); /* won't return if started */
 203
 204         prompt_usb("No firmware", filename);
 205     }
 206
 207
 208 }
 209
 210 /* These functions are present in the firmware library, but we reimplement
 211    them here because the originals do a lot more than we want */
 212
 213 void audio_stop(void)
 214 {
 215 }
 216
 217 int audio_status(void)
 218 {
 219     return 0;
 220 }
 221
 222 void audio_stop_recording(void)
 223 {
 224 }
 225
 226 void mp3_shutdown(void)
 227 {
 228 }