CHDK_DE Vorschauversion  Trunk Rev. 6014
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Funktionen | Variablen
boot.c-Dateireferenz
#include "lolevel.h"
#include "platform.h"
#include "core.h"
+ Include-Abhängigkeitsdiagramm für boot.c:

gehe zum Quellcode dieser Datei

Funktionen

void createHook (void *pNewTcb)
 
void deleteHook (void *pTcb)
 
void boot ()
 
void __attribute__ ((naked, noinline))
 *-------------------------------------------------------------------— Mehr ...
 
void h_usrInit ()
 
void h_usrKernelInit ()
 
void h_usrRoot ()
 

Variablen

const char *const new_sa = &_end
 
long wrs_kernel_bss_start
 
long wrs_kernel_bss_end
 

Dokumentation der Funktionen

void __attribute__ ( (naked, noinline)  )

*-------------------------------------------------------------------—

!!

IS_ERROR( hSoundHandle )

IS_ERROR( RetCode )

IS_ERROR( RetCode )

IS_ERROR( RetCode )

IS_ERROR( RetCode )

"MOV R3, #0\n" "STR R3, [R9]\n"

TODO! below is from sd400

"MOV R3, #0\n" "STR R3, [R9]\n"

TODO! below is from sd400

Definiert in Zeile 17 der Datei boot.c.

24 {
25  // offset of "start of data" string in primary.bin - 4
26  // All the asm code below is from: 0xFF8100F8
27 
28  long *canon_data_src = (void*)0xFFB29580;
29  long *canon_data_dst = (void*)0x1900;
30  // up to the end of flash
31  long canon_data_len = 0xBDE0;
32  // just after ROM data
33  long *canon_bss_start = (void*)(0x1900+0xBDE0);
34  // BSS end offset (from FF810134 disasm) minus BSS start
35  long canon_bss_len = 0x9C6B0 - (long)canon_bss_start;
36  long i;
37 
38  asm volatile (
39  "MRC p15, 0, R0,c1,c0\n"
40  "ORR R0, R0, #0x1000\n"
41  "ORR R0, R0, #4\n"
42  "ORR R0, R0, #1\n"
43  "MCR p15, 0, R0,c1,c0\n"
44  :::"r0");
45 /*
46  int * data = (int*)0x170000;
47  for (i = 0; i < 30*1024*1024/4; i++) {
48  data[i] = 0xCAFEDEAD;
49  }
50 */
51 
52  for(i=0;i<canon_data_len/4;i++)
53  canon_data_dst[i]=canon_data_src[i];
54 
55  for(i=0;i<canon_bss_len/4;i++)
56  canon_bss_start[i]=0;
57 
58 
59  asm volatile (
60  "MRC p15, 0, R0,c1,c0\n"
61  "ORR R0, R0, #0x1000\n"
62  "BIC R0, R0, #4\n"
63  "ORR R0, R0, #1\n"
64  "MCR p15, 0, R0,c1,c0\n"
65  :::"r0");
66  h_usrInit();
67 }
void boot ( )

Definiert in Zeile 43 der Datei boot.c.

43  {
44 
45  long *canon_data_src = (void*)0xFFEDAC70; // value taken at ROM:FFC00188
46  long *canon_data_dst = (void*)0x1900;
47  long canon_data_len = 0xDF84 - 0x1900; // data_end - data_start 0xDF7C taken at ROM:FFC00138
48  long *canon_bss_start = (void*)0xDF84; // just after data
49  long canon_bss_len = 0xD4F38 - 0xDF84; // d4ec8 taken at ROM:FFC00FB4
50 
51  long i;
52 
53  // enable caches and write buffer...
54  // this is a carryover from old dryos ports, may not be useful
55  asm volatile (
56  "MRC p15, 0, R0,c1,c0\n"
57  "ORR R0, R0, #0x1000\n"
58  "ORR R0, R0, #4\n"
59  "ORR R0, R0, #1\n"
60  "MCR p15, 0, R0,c1,c0\n"
61  :::"r0"
62  );
63 
64  for(i=0;i<canon_data_len/4;i++)
65  canon_data_dst[i]=canon_data_src[i];
66 
67  for(i=0;i<canon_bss_len/4;i++)
68  canon_bss_start[i]=0;
69 
70  asm volatile ("B sub_FFC001A4_my\n");
71 };
void createHook ( void *  pNewTcb)

Definiert in Zeile 110 der Datei main.c.

111 {
112  char *name = (char*)(*(long*)((char*)pNewTcb+0x34));
113  long *entry = (long*)((char*)pNewTcb+0x74);
114 
115  // always hook first task creation
116  // to create SpyProc
117  if (!stop_hooking){
118  task_prev = (void*)(*entry);
119  *entry = (long)task_start_hook;
120  stop_hooking = 1;
121  } else {
122  // hook/replace another tasks
123  if (my_ncmp(name, "tPhySw", 6) == 0){
124  *entry = (long)physw_hook;
125  }
126 
127  if (my_ncmp(name, "tInitFileM", 10) == 0){
128  init_file_modules_prev = (void*)(*entry);
129 #if CAM_MULTIPART
130  *entry = (long)init_file_modules_task;
131 #else
132  *entry = (long)init_file_modules_hook;
133 #endif
134  }
135 
136  if (my_ncmp(name, "tCaptSeqTa", 10) == 0){
137  *entry = (long)capt_seq_hook;
138  }
139 
140 #if CAM_CHDK_HAS_EXT_VIDEO_MENU
141  if (my_ncmp(name, "tMovieReco", 10) == 0){
142  *entry = (long)movie_record_hook;
143  }
144 #endif
145 
146 #if CAM_EXT_TV_RANGE
147  if (my_ncmp(name, "tExpDrvTas", 10) == 0){
148  *entry = (long)exp_drv_task;
149  }
150 #endif
151 
152 #if CAM_HAS_FILEWRITETASK_HOOK
153  if (my_ncmp(name, "tFileWrite", 10) == 0){
154  *entry = (long)filewritetask;
155  }
156 #endif
157 
158 // for cameras that have a "touch control dial" with 'TouchW' task.
159 // some cameras may use a different task name
160 #ifdef HOOK_TOUCHW
161  if (my_ncmp(name, "tTouchW", 7) == 0){
162  *entry = (long)my_touchw_task;
163  }
164 #endif
165 
166  core_hook_task_create(pNewTcb);
167  }
168 }
void deleteHook ( void *  pTcb)

Definiert in Zeile 170 der Datei main.c.

171 {
172  core_hook_task_delete(pTcb);
173 }
void h_usrInit ( )

Definiert in Zeile 70 der Datei boot.c.

71 {
72  asm volatile (
73  "STR LR, [SP,#-4]!\n"
74  "BL sub_FF81196C\n"
75  "MOV R0, #2\n"
76  "MOV R1, R0\n"
77  "BL sub_FFB0EED8\n"
78  "BL sub_FFB01B4C\n"
79  "BL sub_FF8111C4\n"
80  "BL sub_FF81172C\n"
81  "LDR LR, [SP],#4\n"
82  "B h_usrKernelInit\n"
83  );
84 }
void h_usrKernelInit ( )

Definiert in Zeile 86 der Datei boot.c.

87 {
88  asm volatile (
89  "STMFD SP!, {R4,LR}\n"
90  "SUB SP, SP, #8\n"
91  "BL sub_FFB0F3D8\n"
92  "BL sub_FFB22BE0\n"
93  "LDR R3, =0xC6F0\n"
94  "LDR R2, =0x99340\n"
95  "LDR R1, [R3]\n"
96  "LDR R0, =0x9C070\n"
97  "MOV R3, #0x100\n"
98  "BL sub_FFB1BCF0\n"
99  "LDR R3, =0xC6B0\n"
100  "LDR R0, =0xCEF8\n"
101  "LDR R1, [R3]\n"
102  "BL sub_FFB1BCF0\n"
103  "LDR R3, =0xC76C\n"
104  "LDR R0, =0x9C044\n"
105  "LDR R1, [R3]\n"
106  "BL sub_FFB1BCF0\n"
107  "BL sub_FFB27760\n"
108  "BL sub_FF8112B0\n"
109  "MOV R4, #0\n"
110  "MOV R3, R0\n"
111  "MOV R12, #0x800\n"
112  "LDR R0, =h_usrRoot\n" // !!!
113  "MOV R1, #0x4000\n"
114  );
115 // "LDR R2, =0xCC6B0\n" // !!! 0x9C6B0 + 0x30000 MEMISOSIZE!!!
116 // "LDR R2, =0x18A6B0\n" // !!! Increased size !!! 0x9C6B0+0x1ae000= 0x24A6B0-0x18A6B0=786432
117  asm volatile (
118  "LDR R2, =new_sa\n"
119  "LDR R2, [R2]\n"
120  );
121  asm volatile (
122  "STR R12, [SP]\n"
123  "STR R4, [SP,#4]\n"
124  "BL sub_FFB1FE20\n"
125  "ADD SP, SP, #8\n"
126  "LDMFD SP!, {R4,PC}\n"
127  );
128 }
void h_usrRoot ( )

Definiert in Zeile 131 der Datei boot.c.

132 {
133  asm volatile
134  (
135  "STMFD SP!, {R4,R5,LR}\n"
136  "MOV R5, R0\n"
137  "MOV R4, R1\n"
138  "BL sub_FF8119D4\n"
139  "MOV R1, R4\n"
140  "MOV R0, R5\n"
141  "BL sub_FFB1406C\n"
142  "MOV R1, R4\n"
143  "MOV R0, R5\n"
144  "BL sub_FFB14AE4\n"
145  "BL sub_FF811708\n"
146  "MOV R0, #0x32\n"
147  "BL sub_FFB16A88\n" // selectInit
148  );
149 
150  asm volatile
151  (
152  "BL sub_FF811A14\n" //ios_tty_Init
153  "BL sub_FF8119F8\n"
154  "BL sub_FF811A40\n"
155  "BL sub_FFB16348\n"
156  "BL sub_FF8119C8\n"
157  );
158 
159  _taskCreateHookAdd(createHook);
160  _taskDeleteHookAdd(deleteHook);
161 
162  drv_self_hide();
163 
164  asm volatile (
165  "LDMFD SP!, {R4,R5,LR}\n"
166  "B sub_FF811370\n"
167  );
168 }

Variablen-Dokumentation

const char* const new_sa = &_end

Definiert in Zeile 5 der Datei boot.c.

long wrs_kernel_bss_end
long wrs_kernel_bss_start