void power_off(void)
{
#if defined(HAVE_LCD_COLOR) && !defined(HAVE_LCD_SHUTDOWN)
/* Clear the screen and backdrop to
remove ghosting effect on shutdown */
lcd_set_backdrop(NULL);
lcd_set_background(LCD_WHITE);
lcd_clear_display();
lcd_update();
sleep(HZ/16);
#endif
#ifndef BOOTLOADER
#ifdef IPOD_1G2G
/* we cannot turn off the 1st gen/ 2nd gen yet. Need to figure out sleep mode. */
system_reboot();
#else
/* We don't turn off the ipod, we put it in a deep sleep */
/* Clear latter part of iram (the part used by plugins/codecs) to ensure
* that the OF behaves properly on boot. There is some kind of boot
* failure flag there which otherwise may not be cleared.
*/
#if CONFIG_CPU == PP5022
memset((void*)0x4000c000, 0, 0x14000);
#elif CONFIG_CPU == PP5020
memset((void*)0x4000c000, 0, 0xc000);
#endif
pcf50605_standby_mode();
#endif
#endif
}
static void show_skin_backdrop(void)
{
/* if no wps backdrop, fall back to main backdrop */
if(skin_backdrop_valid)
{
lcd_set_backdrop(&skin_backdrop[0][0]);
}
else
{
show_main_backdrop();
}
}
static void sig_handler(int sig, siginfo_t *siginfo, void *context)
{
/* safe guard variable - we call backtrace() only on first
* UIE call. This prevent endless loop if backtrace() touches
* memory regions which cause abort
*/
static bool triggered = false;
lcd_set_backdrop(NULL);
lcd_set_drawmode(DRMODE_SOLID);
lcd_set_foreground(LCD_BLACK);
lcd_set_background(LCD_WHITE);
unsigned line = 0;
lcd_setfont(FONT_SYSFIXED);
lcd_set_viewport(NULL);
lcd_clear_display();
/* get context info */
ucontext_t *uc = (ucontext_t *)context;
unsigned long pc = uc->uc_mcontext.pc;
unsigned long sp = uc->uc_mcontext.gregs[29];
lcd_putsf(0, line++, "%s at %08x", strsignal(sig), pc);
if(sig == SIGILL || sig == SIGFPE || sig == SIGSEGV || sig == SIGBUS || sig == SIGTRAP)
lcd_putsf(0, line++, "address 0x%08x", siginfo->si_addr);
if(!triggered)
{
triggered = true;
rb_backtrace(pc, sp, &line);
}
#ifdef ROCKBOX_HAS_LOGF
lcd_putsf(0, line++, "logf:");
logf_panic_dump(&line);
#endif
lcd_update();
system_exception_wait(); /* If this returns, try to reboot */
system_reboot();
while (1); /* halt */
}
void backdrop_show(char *backdrop_buffer)
{
lcd_set_backdrop((fb_data*)backdrop_buffer);
}
static inline void show_main_backdrop(void)
{
lcd_set_backdrop(main_backdrop_valid ? &main_backdrop[0][0] : NULL);
}