CHDK_DE Vorschauversion  Trunk Rev. 5428
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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: 0xFF8100E0
27 
28  long *canon_data_src = (void*)0xFFAEB320;
29  long *canon_data_dst = (void*)0x1900;
30  // up to the end of flash
31  long canon_data_len = 0xEA00;
32  // just after ROM data
33  long *canon_bss_start = (void*)(0x1900+0xEA00);
34  // BSS end offset (from FF810134 disasm) minus BSS start
35  long canon_bss_len = 0xA87D0 - (long)canon_bss_start;
36  long i;
37 
38 
39  asm volatile (
40  "MRC p15, 0, R0,c1,c0\n"
41  "ORR R0, R0, #0x1000\n"
42  "ORR R0, R0, #4\n"
43  "ORR R0, R0, #1\n"
44  "MCR p15, 0, R0,c1,c0\n"
45  :::"r0");
46 
47  for(i=0;i<canon_data_len/4;i++)
48  canon_data_dst[i]=canon_data_src[i];
49 
50  for(i=0;i<canon_bss_len/4;i++)
51  canon_bss_start[i]=0;
52 
53  asm volatile (
54  "MRC p15, 0, R0,c1,c0\n"
55  "ORR R0, R0, #0x1000\n"
56  "BIC R0, R0, #4\n"
57  "ORR R0, R0, #1\n"
58  "MCR p15, 0, R0,c1,c0\n"
59  :::"r0");
60 
61  h_usrInit();
62 }
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 102 der Datei main.c.

103 {
104  char *name = (char*)(*(long*)((char*)pNewTcb+0x34));
105  long *entry = (long*)((char*)pNewTcb+0x74);
106 
107  // always hook first task creation
108  // to create SpyProc
109  if (!stop_hooking){
110  task_prev = (void*)(*entry);
111  *entry = (long)task_start_hook;
112  stop_hooking = 1;
113  } else {
114  // hook/replace another tasks
115  if (my_ncmp(name, "tPhySw", 6) == 0){
116  *entry = (long)physw_hook;
117  }
118 
119  if (my_ncmp(name, "tInitFileM", 10) == 0){
120  init_file_modules_prev = (void*)(*entry);
121 #if CAM_MULTIPART
122  *entry = (long)init_file_modules_task;
123 #else
124  *entry = (long)init_file_modules_hook;
125 #endif
126  }
127 
128  if (my_ncmp(name, "tCaptSeqTa", 10) == 0){
129  *entry = (long)capt_seq_hook;
130  }
131 
132 #if CAM_CHDK_HAS_EXT_VIDEO_MENU
133  if (my_ncmp(name, "tMovieReco", 10) == 0){
134  *entry = (long)movie_record_hook;
135  }
136 #endif
137 
138 #if CAM_EXT_TV_RANGE
139  if (my_ncmp(name, "tExpDrvTas", 10) == 0){
140  *entry = (long)exp_drv_task;
141  }
142 #endif
143 
144 #if CAM_HAS_FILEWRITETASK_HOOK
145  if (my_ncmp(name, "tFileWrite", 10) == 0){
146  *entry = (long)filewritetask;
147  }
148 #endif
149 
150 // for cameras that have a "touch control dial" with 'TouchW' task.
151 // some cameras may use a different task name
152 #ifdef HOOK_TOUCHW
153  if (my_ncmp(name, "tTouchW", 7) == 0){
154  *entry = (long)my_touchw_task;
155  }
156 #endif
157 
158  core_hook_task_create(pNewTcb);
159  }
160 }
void deleteHook ( void *  pTcb)

Definiert in Zeile 162 der Datei main.c.

163 {
164  core_hook_task_delete(pTcb);
165 }
void h_usrInit ( )

Definiert in Zeile 65 der Datei boot.c.

66 {
67  asm volatile (
68  "STR LR, [SP,#-4]!\n"
69  "BL sub_FF81196C\n"
70  "MOV R0, #2\n"
71  "MOV R1, R0\n"
72  "BL sub_FFACEF78\n" // unknown_libname_838
73  "BL sub_FFABB650\n" // excVecInit
74  "BL sub_FF8111C4\n"
75  "BL sub_FF81172C\n"
76  "LDR LR, [SP],#4\n"
77  "B h_usrKernelInit\n"
78  );
79 }
void h_usrKernelInit ( )

Definiert in Zeile 81 der Datei boot.c.

82 {
83  asm volatile (
84  "STMFD SP!, {R4,LR}\n"
85  "SUB SP, SP, #8\n"
86  "BL sub_FFACF478\n" // classLibInit
87  "BL sub_FFAE4764\n" // taskLibInit
88  "LDR R3, =0xF294\n"
89  "LDR R2, =0xA5400\n"
90  "LDR R1, [R3]\n"
91  "LDR R0, =0xA8190\n"
92  "MOV R3, #0x100\n"
93  "BL sub_FFADD5B4\n" // qInit
94  "LDR R3, =0xF254\n"
95  "LDR R0, =0xFB1C\n"
96  "LDR R1, [R3]\n"
97  "BL sub_FFADD5B4\n" // qInit
98  "LDR R3, =0xF310\n"
99  "LDR R0, =0xA8164\n"
100  "LDR R1, [R3]\n"
101  "BL sub_FFADD5B4\n" // qInit
102  "BL sub_FFAE92E4\n" // workQInit
103  "BL sub_FF8112B0\n"
104  "MOV R4, #0\n"
105  "MOV R3, R0\n"
106  "MOV R12, #0x800\n"
107  "LDR R0, =h_usrRoot\n" // !!!
108  "MOV R1, #0x4000\n"
109  );
110 // "LDR R2, =0xD87D0\n" // !!! 0xA87D0 + 0x30000
111  asm volatile (
112  "LDR R2, =new_sa\n"
113  "LDR R2, [R2]\n"
114  );
115  asm volatile (
116  "STR R12, [SP]\n"
117  "STR R4, [SP,#4]\n"
118  "BL sub_FFAE19A4\n" // kernelInit
119  "ADD SP, SP, #8\n"
120  "LDMFD SP!, {R4,PC}\n"
121  );
122 };
void h_usrRoot ( )

Definiert in Zeile 125 der Datei boot.c.

126 {
127  asm volatile (
128  "STMFD SP!, {R4,R5,LR}\n"
129  "MOV R5, R0\n"
130  "MOV R4, R1\n"
131  "BL sub_FF8119D4\n"
132  "MOV R1, R4\n"
133  "MOV R0, R5\n"
134  "BL sub_FFAD55F4\n" // memInit
135  "MOV R1, R4\n"
136  "MOV R0, R5\n"
137  "BL sub_FFAD606C\n" // memPartLibInit
138  "BL sub_FF811708\n"
139  "MOV R0, #0x32\n"
140  "BL sub_FFAD8010\n" // selectInit
141  "BL sub_FF811A18\n"
142  "BL sub_FF8119F8\n"
143  "BL sub_FF811A44\n"
144  "BL sub_FFAD78D0\n" // selTaskDeleteHookAdd
145  "BL sub_FF8119C8\n"
146  );
147 
150 
151  drv_self_hide();
152 
153  asm volatile (
154  "LDMFD SP!, {R4,R5,LR}\n"
155  "B sub_FF811370\n"
156  );
157 }

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