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  * All files in this archive are subject to the GNU General Public License.
  17  * See the file COPYING in the source tree root for full license agreement.
  18  *
  19  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20  * KIND, either express or implied.
  21  *
  22  ****************************************************************************/
  23 #include "config.h"
  24
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include "cpu.h"
  28 #include "system.h"
  29 #include "lcd.h"
  30 #include "kernel.h"
  31 #include "thread.h"
  32 #include "ata.h"
  33 #include "disk.h"
  34 #include "font.h"
  35 #include "adc.h"
  36 #include "button.h"
  37 #include "panic.h"
  38 #include "power.h"
  39 #include "file.h"
  40 #include "buffer.h"
  41 #include "rolo.h"
  42 #include "usb.h"
  43 #include "powermgmt.h"
  44
  45 void usb_screen(void)
  46 {
  47     lcd_clear_display();
  48     lcd_puts(0, 0, "USB mode");
  49     lcd_update();
  50
  51     usb_acknowledge(SYS_USB_CONNECTED_ACK);
  52     while(usb_wait_for_disconnect_w_tmo(&button_queue, HZ)) {
  53     }
  54 }
  55
  56 int show_logo(void)
  57 {
  58     lcd_clear_display();
  59     lcd_puts(0, 0, "Rockbox");
  60     lcd_puts(0, 1, "Rescue boot");
  61     lcd_update();
  62
  63     return 0;
  64 }
  65
  66 #if CONFIG_CHARGING
  67 /*
  68 bool backlight_get_on_when_charging(void)
  69 {
  70     return false;
  71 }
  72 */
  73 void charging_screen(void)
  74 {
  75     unsigned int button;
  76     const char* msg;
  77
  78     ide_power_enable(false); /* power down the disk, else would be spinning */
  79
  80     lcd_clear_display();
  81
  82     do
  83     {
  84 #if CONFIG_CHARGING == CHARGING_CONTROL
  85         if (charge_state == CHARGING)
  86             msg = "charging";
  87         else if (charge_state == TOPOFF)
  88             msg = "topoff charge";
  89         else if (charge_state == TRICKLE)
  90             msg = "trickle charge";
  91         else
  92             msg = "not charging";
  93
  94 #else
  95         msg = "charging";
  96 #endif
  97         lcd_puts(0, 0, msg);
  98         {
  99             char buf[32];
 100             int battv = battery_voltage();
 101             snprintf(buf, sizeof(buf), "%d.%02dV %d%%",
 102                 battv / 1000, (battv % 1000) / 10, battery_level());
 103             lcd_puts(0, 1, buf);
 104         }
 105         lcd_update();
 106
 107         button = button_get_w_tmo(HZ/2);
 108 #ifdef BUTTON_ON
 109         if (button == (BUTTON_ON | BUTTON_REL))
 110 #else
 111         if (button == (BUTTON_RIGHT | BUTTON_REL))
 112 #endif
 113             break; /* start */
 114         else
 115         {
 116             if (usb_detect())
 117                 break;
 118             else if (!charger_inserted())
 119                 power_off(); /* charger removed: power down */
 120         }
 121     } while (1);
 122 }
 123 #endif /* CONFIG_CHARGING */
 124
 125 /* prompt user to plug USB and fix a problem */
 126 void prompt_usb(const char* msg1, const char* msg2)
 127 {
 128     int button;
 129     lcd_clear_display();
 130     lcd_puts(0, 0, msg1);
 131     lcd_puts(0, 1, msg2);
 132 #ifdef HAVE_LCD_BITMAP
 133     lcd_puts(0, 2, "Insert USB cable");
 134     lcd_puts(0, 3, "and fix it.");
 135 #endif
 136     lcd_update();
 137     do
 138     {
 139         button = button_get(true);
 140         if (button == SYS_POWEROFF)
 141         {
 142             power_off();
 143         }
 144     } while (button != SYS_USB_CONNECTED);
 145     usb_screen();
 146     system_reboot();
 147 }
 148
 149 void main(void)
 150 {
 151     int rc;
 152
 153     power_init();
 154     system_init();
 155     kernel_init();
 156     buffer_init();
 157     lcd_init();
 158     show_logo();
 159     enable_irq();
 160     adc_init();
 161     usb_init();
 162     button_init();
 163     powermgmt_init();
 164
 165 #if CONFIG_CHARGING && (CONFIG_CPU == SH7034)
 166     if (charger_inserted()
 167 #ifdef ATA_POWER_PLAYERSTYLE
 168         && !ide_powered() /* relies on probing result from bootloader */
 169 #endif
 170         )
 171     {
 172         charging_screen(); /* display a "charging" screen */
 173         show_logo();  /* again, to provide better visual feedback */
 174     }
 175 #endif
 176
 177     rc = ata_init();
 178     if(rc)
 179     {
 180 #ifdef HAVE_LCD_BITMAP
 181         char str[32];
 182         lcd_clear_display();
 183         snprintf(str, 31, "ATA error: %d", rc);
 184         lcd_puts(0, 1, str);
 185         lcd_update();
 186         while(!(button_get(true) & BUTTON_REL));
 187 #endif
 188         panicf("ata: %d", rc);
 189     }
 190
 191     //disk_init();
 192     usb_start_monitoring();
 193     while (usb_detect())
 194     {   /* enter USB mode early, before trying to mount */
 195         if (button_get_w_tmo(HZ/10) == SYS_USB_CONNECTED)
 196         {
 197             usb_screen();
 198         }
 199     }
 200
 201     rc = disk_mount_all();
 202     if (rc<=0)
 203     {
 204         prompt_usb("No partition", "found.");
 205     }
 206
 207     {   // rolo the firmware
 208         static const char filename[] = "/" BOOTFILE;
 209         rolo_load((char*)filename); /* won't return if started */
 210
 211         prompt_usb("No firmware", filename);
 212     }
 213
 214
 215 }
 216
 217 /* These functions are present in the firmware library, but we reimplement
 218    them here because the originals do a lot more than we want */
 219
 220 void screen_dump(void)
 221 {
 222 }
 223
 224 int dbg_ports(void)
 225 {
 226    return 0;
 227 }
 228
 229 void audio_stop(void)
 230 {
 231 }
 232
 233 int audio_status(void)
 234 {
 235     return 0;
 236 }
 237
 238 void audio_stop_recording(void)
 239 {
 240 }
 241
 242 void mp3_shutdown(void)
 243 {
 244 }
 245 /*
 246 void i2c_init(void)
 247 {
 248 }
 249
 250 void backlight_on(void)
 251 {
 252 }
 253 */