1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2010 Marcin Bukat
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.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
37 #include "backlight.h"
38 #include "backlight-target.h"
42 #include "powermgmt.h"
49 /* Maximum allowed firmware image size. 10MB is more than enough */
50 #define MAX_LOADSIZE (10*1024*1024)
52 #define DRAM_START 0x31000000
54 #define BOOTMENU_TIMEOUT (10*HZ)
55 #define BOOTMENU_OPTIONS 3
57 #define EVENT_NONE 0x00
60 #define EVENT_USB 0x04
64 static const char *bootmenu_options
[] = {
81 char version
[] = APPSVERSION
;
83 static inline bool _charger_inserted(void)
85 return (GPIO1_READ
& (1<<14)) ? false : true;
88 static inline bool _battery_full(void)
90 return (GPIO_READ
& (1<<30)) ? true : false;
93 /* Reset the cookie for the crt0 crash check */
94 static inline void __reset_cookie(void)
96 asm(" move.l #0,%d0");
97 asm(" move.l %d0,0x10017ffc");
100 static void start_rockbox(void)
103 asm(" move.w #0x2700,%sr");
105 asm(" move.l %0,%%d0" :: "i"(DRAM_START
));
106 asm(" movec.l %d0,%vbr");
107 asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START
));
108 asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START
+4)));
112 static void start_mpio_firmware(void)
114 asm(" move.w #0x2700,%sr");
116 asm(" movec.l %d0,%vbr");
117 asm(" move.l 0,%sp");
121 static void __reset(void)
123 asm(" move.w #0x2700,%sr");
125 asm(" movec.l %d0,%vbr");
126 asm(" move.l (0), %sp");
127 asm(" movea.l (4),%a0");
131 static void __shutdown(void)
133 /* We need to gracefully spin down the disk to prevent clicks. */
136 /* Make sure ATA has been initialized. */
139 /* And put the disk into sleep immediately. */
147 if (_charger_inserted())
149 /* reset instead of power_off() */
158 /* Print the battery voltage (and a warning message). */
159 static void check_battery(void)
162 int battery_voltage
, batt_int
, batt_frac
;
164 battery_voltage
= battery_adc_voltage();
165 batt_int
= battery_voltage
/ 1000;
166 batt_frac
= (battery_voltage
% 1000) / 10;
168 printf("Battery: %d.%02dV", batt_int
, batt_frac
);
170 if (battery_voltage
<= 3500)
172 printf("WARNING! BATTERY LOW!!");
179 static void lcd_putstring_centered(const char *string
)
182 font_getstringsize(string
, &w
, &h
, FONT_SYSFIXED
);
183 lcd_putsxy((LCD_WIDTH
-w
)/2, (LCD_HEIGHT
-h
)/2, string
);
186 static void rb_boot(void)
193 printf("ATA error: %d", rc
);
200 rc
= disk_mount_all();
203 printf("No partition found");
208 printf("Loading firmware");
210 rc
= load_firmware((unsigned char *)DRAM_START
,
211 BOOTFILE
, MAX_LOADSIZE
);
216 printf("Can't load " BOOTFILE
": ");
217 printf("Result: %s", strerror(rc
));
225 static void bootmenu(void)
228 enum option_t option
= rockbox
;
230 const char select
[] = "->";
231 long start_tick
= current_tick
;
233 /* backbone of menu */
235 printf("Rockbox boot loader");
236 printf("Ver: %s", version
);
241 printf("=========================");
243 line
+= BOOTMENU_OPTIONS
+2; /* skip lines */
245 printf("=========================");
247 printf(" [FF] [PREV] to move ");
248 printf(" [PLAY] to confirm ");
250 /* content of menu and keys handling */
251 while (TIME_BEFORE(current_tick
,start_tick
+ BOOTMENU_TIMEOUT
))
254 line
= 6; /* move below header */
256 for (i
=0;i
<BOOTMENU_OPTIONS
;i
++)
259 printf(" %s",bootmenu_options
[i
]);
261 printf("%s %s",select
,bootmenu_options
[i
]);
266 printf("Time left: %ds",(BOOTMENU_TIMEOUT
-
267 (current_tick
- start_tick
))/HZ
);
271 button
= button_get_w_tmo(HZ
);
276 if (option
> rockbox
)
283 if (option
< shutdown
)
290 case (BUTTON_PLAY
|BUTTON_REC
):
300 start_mpio_firmware();
315 const char usb_connect_msg
[] = "Bootloader USB mode";
316 const char charging_msg
[] = "Charging...";
317 const char complete_msg
[] = "Charging complete";
319 /* helper variable for messages */
320 bool blink_toggle
= false;
323 unsigned int event
= EVENT_NONE
;
324 unsigned int last_event
= EVENT_NONE
;
331 set_cpu_frequency(CPUFREQ_NORMAL
);
332 coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS
);
337 /* only lowlevel functions no queue init */
341 /* setup font system*/
343 lcd_setfont(FONT_SYSFIXED
);
345 /* buttons reading */
352 /* Handle wakeup event. Possibilities are:
362 button
= button_get_w_tmo(HZ
);
364 if ( button
& BUTTON_PLAY
)
367 if ( usb_detect() == USB_INSERTED
)
370 if ( _charger_inserted() )
377 case (EVENT_ON
| EVENT_AC
):
378 /* hold is handled in button driver */
379 cpu_idle_mode(false);
381 if (button
== (BUTTON_PLAY
|BUTTON_REC
))
389 /* turn on charging */
390 if (!(last_event
& EVENT_AC
))
391 or_l((1<<15),&GPIO_OUT
);
394 if (last_event
& EVENT_USB
)
400 lcd_putstring_centered(charging_msg
);
402 blink_toggle
= !blink_toggle
;
406 lcd_putstring_centered(complete_msg
);
412 case (EVENT_USB
| EVENT_AC
):
413 if (!(last_event
& EVENT_AC
))
414 or_l((1<<15),&GPIO_OUT
);
416 if (!(last_event
& EVENT_USB
))
419 ide_power_enable(true);
427 lcd_putstring_centered(usb_connect_msg
);
430 blink_toggle
= !blink_toggle
;
435 /* spurious wakeup */
445 /* These functions are present in the firmware library, but we reimplement
446 them here because the originals do a lot more than we want */
447 void screen_dump(void)