CHDK_DE Vorschauversion  Trunk Rev. 5707
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shutdown.h-Dateireferenz
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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.

14 {
15  {
16  // char *dst = dst_void;
17  // const char *src = src_void;
18  long *dst = (long*)MEMISOSTART;
19  const long *src = blob_chdk_core;
20  long length = (blob_chdk_core_size + 3) >> 2;
21 
22  core_copy(src, dst, length);
23 
24 }
25 
26  asm volatile (
27  "MRS R0, CPSR\n"
28  "BIC R0, R0, #0x3F\n"
29  "ORR R0, R0, #0xD3\n"
30  "MSR CPSR, R0\n"
31  "LDR R1, =0xC0200000\n"
32  "MOV R0, #0xFFFFFFFF\n"
33  "STR R0, [R1,#0x10C]\n"
34  "STR R0, [R1,#0xC]\n"
35  "STR R0, [R1,#0x1C]\n"
36  "STR R0, [R1,#0x2C]\n"
37  "STR R0, [R1,#0x3C]\n"
38  "STR R0, [R1,#0x4C]\n"
39  "STR R0, [R1,#0x5C]\n"
40  "STR R0, [R1,#0x6C]\n"
41  "STR R0, [R1,#0x7C]\n"
42  "STR R0, [R1,#0x8C]\n"
43  "STR R0, [R1,#0x9C]\n"
44  "STR R0, [R1,#0xAC]\n"
45  "STR R0, [R1,#0xBC]\n"
46  "STR R0, [R1,#0xCC]\n"
47  "STR R0, [R1,#0xDC]\n"
48  "STR R0, [R1,#0xEC]\n"
49  "CMP R4, #7\n"
50  "STR R0, [R1,#0xFC]\n"
51  "LDMEQFD SP!, {R4,PC}\n"
52  "MOV R0, #0x78\n"
53  "MCR p15, 0, R0,c1,c0\n"
54  "MOV R0, #0\n"
55  "MCR p15, 0, R0,c7,c10, 4\n"
56  "MCR p15, 0, R0,c7,c5\n"
57  "MCR p15, 0, R0,c7,c6\n"
58  "MOV R0, #0x40000006\n"
59  "MCR p15, 0, R0,c9,c1\n"
60  "MCR p15, 0, R0,c9,c1, 1\n"
61  "MRC p15, 0, R0,c1,c0\n"
62  "ORR R0, R0, #0x50000\n"
63  "MCR p15, 0, R0,c1,c0\n"
64  "LDR R0, =0x12345678\n"
65  "MOV R1, #0x40000000\n"
66  "STR R0, [R1,#0xFFC]\n"
67  //"LDR R0, =0xFF810000\n" // original jump-vector
68  "MOV R0, %0\n" // new jump-vector
69  "LDMFD SP!, {R4,LR}\n"
70  //"BX %0\n"
71  "BX R0\n"
72  : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
73  //);
74 
75  while(1);
76 }
void camera_shutdown_in_a_second ( void  )

Definiert in Zeile 1187 der Datei wrappers.c.

1187  {
1188  int i;
1189  _SetAutoShutdownTime(1); // 1 sec
1190  for (i=0;i<200;i++)
1191  _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").
1192 }
void disable_shutdown ( )

Definiert in Zeile 1173 der Datei wrappers.c.

1173  {
1174  if (!shutdown_disabled) {
1175  _LockMainPower();
1176  shutdown_disabled = 1;
1177  }
1178 }
void enable_shutdown ( )

Definiert in Zeile 1180 der Datei wrappers.c.

1180  {
1181  if (shutdown_disabled) {
1182  _UnlockMainPower();
1183  shutdown_disabled = 0;
1184  }
1185 }
int reboot ( const char *  bootfile)

Definiert in Zeile 23 der Datei reboot.c.

23  {
24 #ifndef THUMB_FW
25  if(bootfile == NULL)
26 #endif
27  {
29  _Restart(0);
30  }
31 #ifndef THUMB_FW
32  int namelen=strlen(bootfile);
33  if(namelen > 3 && (strncmp(bootfile + namelen - 4,".FI",3) == 0)) {
34  _reboot_fw_update(bootfile);
35  // if _reboot_fw_update returns, it failed or is not implemented
36  return 0;
37  }
38 
39  int fd;
40  int size;
41  int rcnt;
42  char *buf;
43  unsigned data_tcm;
44  void __attribute__((noreturn)) (*canon_copy_and_restart)(char *dst, char *src, unsigned length,char *start);
45 
46  // use open/read etc since it takes less mem, boot image might be large
47  fd = open(bootfile,O_RDONLY,0);
48  if(fd == -1) {
49  return 0;
50  }
51  size = lseek(fd,0,SEEK_END);
52  // error or less than 1 instruction
53  if(size < 4) {
54  return 0;
55  }
56  buf = umalloc(size);
57  if(!buf) {
58  close(fd);
59  return 0;
60  }
61  lseek(fd,0,SEEK_SET);
62  rcnt = read(fd, buf, size);
63  close(fd);
64  if(rcnt != size) {
65  ufree(buf);
66  return 0;
67  }
68  asm volatile(
69  "MRC p15, 0, %0, c9, c1, 0\n"
70  : "=r" (data_tcm)
71  );
72  data_tcm &= 0xFFFFF000;
73  canon_copy_and_restart = (void *)(*(unsigned *)data_tcm);
74  if( ((unsigned)canon_copy_and_restart & 0xFFFF0000) != 0xFFFF0000) {
75  ufree(buf);
76  return 0;
77  }
79  _Restart(7);
80  canon_copy_and_restart((void *)0x1900,buf,size,(void *)0x1900);
81 #else
82  (void)bootfile;
83  return 0;
84 #endif // THUMB_FW
85 }