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 ShowCode (int code)
 
void ShowCodeR (int code)
 
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

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

__MovieRecorder_c__100

__MovieRecorder_c__100

Definiert in Zeile 18 der Datei boot.c.

23 {
24  long *canon_data_src = (void*)0xFFAE7EE0; // This is the address of the "Startofdata"-4 string on the firmware
25  long *canon_data_dst = (void*)MEMBASEADDR; // This is where the boot data is copiedduring firmware update
26  long canon_data_len = 0xE7D0; // This is the length of data from "Startofdata" to the end of the firmware dump
27  long *canon_bss_start = (void*) (canon_data_len + MEMBASEADDR); // = 0xEB60 + 0x1900, just after data
28  long canon_bss_len = MEMISOSTART - (long) canon_bss_start; // The original address of h_usrKernelInit - bss start
29  long i;
30 
31  asm volatile (
32  "MRC p15, 0, R0,c1,c0\n"
33  "ORR R0, R0, #0x1000\n"
34  "ORR R0, R0, #4\n"
35  "ORR R0, R0, #1\n"
36  "MCR p15, 0, R0,c1,c0\n"
37  :::"r0");
38 
39 
40  for(i=0;i<canon_data_len/4;i++)
41  canon_data_dst[i]=canon_data_src[i];
42 
43  for(i=0;i<canon_bss_len/4;i++)
44  canon_bss_start[i]=0;
45 
46  asm volatile (
47  "MRC p15, 0, R0,c1,c0\n"
48  "ORR R0, R0, #0x1000\n"
49  "BIC R0, R0, #4\n"
50  "ORR R0, R0, #1\n"
51  "MCR p15, 0, R0,c1,c0\n"
52  :::"r0");
53 
54  h_usrInit();
55 }
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 58 der Datei boot.c.

59 {
60  asm volatile (
61  "STR LR, [SP,#-4]!\n"
62  "BL sub_FF811A40\n"
63  "MOV R0, #2\n"
64  "MOV R1, R0\n"
65  "BL sub_FFACBB40\n"
66  "BL sub_FFAB8218\n"
67  "BL sub_FF811298\n"
68  "BL sub_FF811800\n"
69  "LDR LR, [SP],#4\n"
70  "B h_usrKernelInit\n"
71  );
72 }
void h_usrKernelInit ( )

Definiert in Zeile 75 der Datei boot.c.

76 {
77  asm volatile (
78  "STMFD SP!, {R4,LR}\n"
79  "SUB SP, SP, #8\n"
80  "BL sub_FFACC040\n"
81  "BL sub_FFAE132C\n"
82  "LDR R3, =0xF05C\n"
83  "LDR R2, =0xA4740\n"
84  "LDR R1, [R3]\n"
85  "LDR R0, =0xA7FB0\n"
86  "MOV R3, #0x100\n"
87  "BL sub_FFADA17C\n"
88  "LDR R3, =0xF01C\n"
89  "LDR R0, =0xF8E4\n"
90  "LDR R1, [R3]\n"
91  "BL sub_FFADA17C\n"
92  "LDR R3, =0xF0D8\n"
93  "LDR R0, =0xA7F84\n"
94  "LDR R1, [R3]\n"
95  "BL sub_FFADA17C\n"
96  "BL sub_FFAE5EAC\n"
97  "BL sub_FF811384\n"
98  "MOV R4, #0\n"
99  "MOV R3, R0\n"
100  "MOV R12, #0x800\n"
101  "LDR R0, =h_usrRoot\n"
102  "MOV R1, #0x4000\n"
103 
104  "LDR R2, =new_sa\n"
105  "LDR R2, [R2]\n"
106 
107  "STR R12, [SP]\n"
108  "STR R4, [SP,#4]\n"
109  "BL sub_FFADE56C\n"
110  "ADD SP, SP, #8\n"
111  "LDMFD SP!, {R4,PC}\n"
112  );
113 }
void h_usrRoot ( )

Definiert in Zeile 116 der Datei boot.c.

117 {
118  volatile long *p;
119  asm volatile (
120  "STMFD SP!, {R4,R5,LR}\n"
121  "MOV R5, R0\n"
122  "MOV R4, R1\n"
123  "BL sub_FF811AA8\n"
124  "MOV R1, R4\n"
125  "MOV R0, R5\n"
126  "BL sub_FFAD21BC\n" // memInit
127  "MOV R1, R4\n"
128  "MOV R0, R5\n"
129  "BL sub_FFAD2C34\n" // mmPartLibInit <----- OK up to here!!
130  //NULLSTUB
131  "BL sub_FF8117DC\n"
132  "MOV R0, #0x32\n"
133  "BL sub_FFAD4BD8\n" // selectInit
134  "BL sub_FF811AEC\n"
135  "BL sub_FF811ACC\n"
136  "BL sub_FF811B18\n"
137  "BL sub_FFAD4498\n" //selTaskDeleteHookAdd
138  "BL sub_FF811A9C\n"
139  );
140 
143 
144  drv_self_hide();
145 
146  asm volatile (
147  "LDMFD SP!, {R4,R5,LR}\n"
148  "B sub_FF811444\n"
149  );
150 
151 }
void ShowCode ( int  code)
void ShowCodeR ( int  code)

Variablen-Dokumentation

const char* const new_sa = &_end

Definiert in Zeile 13 der Datei boot.c.

long wrs_kernel_bss_end
long wrs_kernel_bss_start