source: trunk/loader/a470/main.c @ 2798

static void __attribute__((noreturn)) shutdown();
static void __attribute__((noreturn)) panic(int cnt);

extern long *blob_chdk_core;
extern long *blob_copy_and_reset;
extern long blob_chdk_core_size;
extern long blob_copy_and_reset_size;



void __attribute__((noreturn)) my_restart() 
{
    void __attribute__((noreturn)) (*copy_and_restart)(char *dst, char *src, long length);
    int i;

    for (i=0; i<(blob_copy_and_reset_size/sizeof(long)); i++){
        ((long*)(RESTARTSTART))[i] = blob_copy_and_reset[i];
    }

    copy_and_restart = (void*)RESTARTSTART;
    copy_and_restart((void*)MEMISOSTART, (char*)blob_chdk_core, blob_chdk_core_size);
}

#define LED_PR 0xc022008C

static void __attribute__((noreturn)) shutdown()
{
    volatile long *p = (void*)0xc02200a0;     // http://chdk.setepontos.com/index.php/topic,3227.0.html - power switch?
    //volatile long *p = (void*)LED_PR;
        
    asm(
         "MRS     R1, CPSR\n"
         "AND     R0, R1, #0x80\n"
         "ORR     R1, R1, #0x80\n"
         "MSR     CPSR_cf, R1\n"
         :::"r1","r0");
        
    *p = 0x44;  // led off.

    while(1);
}

static void __attribute__((noreturn)) panic(int cnt)
{
        volatile long *p=(void*)LED_PR;
        int i;

        for(;cnt>0;cnt--){
                p[0]=0x46;

                for(i=0;i<0x200000;i++){
                        asm ("nop\n");
                        asm ("nop\n");
                }
                p[0]=0x44;
                for(i=0;i<0x200000;i++){
                        asm ("nop\n");
                        asm ("nop\n");
                }
        }
        shutdown();
}