shutdown.h-Dateireferenz

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gehe zum Quellcode dieser Datei

Funktionen
int	reboot (const char *bootfile)
void	camera_shutdown_in_a_second (void)
void	disable_shutdown ()
void	enable_shutdown ()
void	__attribute__ ((noreturn)) shutdown()

Dokumentation der Funktionen

void __attribute__

(

(noreturn)

)

Definiert in Zeile 13 der Datei main.c.

{
  {
  // char *dst = dst_void;
  // const char *src = src_void;
  long *dst = (long*)MEMISOSTART;
  const long *src = blob_chdk_core;
  long length = (blob_chdk_core_size + 3) >> 2;

  core_copy(src, dst, length);

}

        asm volatile (
                        "MRS     R0, CPSR\n"
                        "BIC     R0, R0, #0x3F\n"
                        "ORR     R0, R0, #0xD3\n"
                        "MSR     CPSR, R0\n"
                        "LDR     R1, =0xC0200000\n"
                        "MOV     R0, #0xFFFFFFFF\n"
                        "STR     R0, [R1,#0x10C]\n"
                        "STR     R0, [R1,#0xC]\n"
                        "STR     R0, [R1,#0x1C]\n"
                        "STR     R0, [R1,#0x2C]\n"
                        "STR     R0, [R1,#0x3C]\n"
                        "STR     R0, [R1,#0x4C]\n"
                        "STR     R0, [R1,#0x5C]\n"
                        "STR     R0, [R1,#0x6C]\n"
                        "STR     R0, [R1,#0x7C]\n"
                        "STR     R0, [R1,#0x8C]\n"
                        "STR     R0, [R1,#0x9C]\n"
                        "STR     R0, [R1,#0xAC]\n"
                        "STR     R0, [R1,#0xBC]\n"
                        "STR     R0, [R1,#0xCC]\n"
                        "STR     R0, [R1,#0xDC]\n"
                        "STR     R0, [R1,#0xEC]\n"
                        "CMP     R4, #7\n"
                        "STR     R0, [R1,#0xFC]\n"
                        "LDMEQFD SP!, {R4,PC}\n"
                        "MOV     R0, #0x78\n"
                        "MCR     p15, 0, R0,c1,c0\n"
                        "MOV     R0, #0\n"
                        "MCR     p15, 0, R0,c7,c10, 4\n"
                        "MCR     p15, 0, R0,c7,c5\n"
                        "MCR     p15, 0, R0,c7,c6\n"
                        "MOV     R0, #0x40000006\n"
                        "MCR     p15, 0, R0,c9,c1\n"
                        "MCR     p15, 0, R0,c9,c1, 1\n"
                        "MRC     p15, 0, R0,c1,c0\n"
                        "ORR     R0, R0, #0x50000\n"
                        "MCR     p15, 0, R0,c1,c0\n"
                        "LDR     R0, =0x12345678\n"
                        "MOV     R1, #0x40000000\n"
                        "STR     R0, [R1,#0xFFC]\n"
                        //"LDR     R0, =0xFF810000\n"   // original jump-vector
                        "MOV     R0, %0\n"              // new jump-vector
                        "LDMFD   SP!, {R4,LR}\n"
                        //"BX        %0\n"
                        "BX      R0\n"
                        : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
        //);

        while(1);
}

void camera_shutdown_in_a_second

(

void

)

Definiert in Zeile 1126 der Datei wrappers.c.

                                       {
    int i;
    _SetAutoShutdownTime(1); // 1 sec
    for (i=0;i<200;i++)
        _UnlockMainPower(); // set power unlock counter to 200 or more, because every keyboard function call try to lock power again ( if "Disable LCD off" menu is "alt" or "script").
}

void disable_shutdown

(

)

Definiert in Zeile 1112 der Datei wrappers.c.

                        {
    if (!shutdown_disabled) {
        _LockMainPower();
        shutdown_disabled = 1;
    }
}

void enable_shutdown

(

)

Definiert in Zeile 1119 der Datei wrappers.c.

                       {
    if (shutdown_disabled) {
        _UnlockMainPower();
        shutdown_disabled = 0;
    }
}

int reboot

(

const char *

bootfile)

Definiert in Zeile 20 der Datei reboot.c.

                                 {
#ifndef THUMB_FW
    if(bootfile == NULL)
#endif
    {
        _TurnOffDisplay();
        _Restart(0);
    }
#ifndef THUMB_FW
    int namelen=strlen(bootfile);
    if(namelen > 3 && (strncmp(bootfile + namelen - 4,".FI",3) == 0)) {
        _reboot_fw_update(bootfile);
        // if _reboot_fw_update returns, it failed or is not implemented
        return 0;
    }

    int fd;
    int size;
    int rcnt;
    char *buf;
    unsigned data_tcm;
    void __attribute__((noreturn)) (*canon_copy_and_restart)(char *dst, char *src, unsigned length,char *start);

    // use open/read etc since it takes less mem, boot image might be large
    fd = open(bootfile,O_RDONLY,0);
    if(fd == -1) {
        return 0;
    }
    size = lseek(fd,0,SEEK_END);
    // error or less than 1 instruction
    if(size < 4) {
        return 0;
    }
    buf = umalloc(size);
    if(!buf) {
        close(fd);
        return 0;
    }
    lseek(fd,0,SEEK_SET);
    rcnt = read(fd, buf, size);
    close(fd);
    if(rcnt != size) {
        ufree(buf);
        return 0;
    }
    asm volatile(
        "MRC        p15, 0, %0, c9, c1, 0\n"
        : "=r" (data_tcm)
    ); 
    data_tcm &= 0xFFFFF000;
    canon_copy_and_restart = (void *)(*(unsigned *)data_tcm);
    if( ((unsigned)canon_copy_and_restart & 0xFFFF0000) != 0xFFFF0000) {
        ufree(buf);
        return 0;
    }
    _TurnOffDisplay();
    _Restart(7);
    canon_copy_and_restart((void *)0x1900,buf,size,(void *)0x1900);
#else
    return 0;
#endif // THUMB_FW
}