CHDK_DE Vorschauversion  Trunk Rev. 6014
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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 16 der Datei boot.c.

21  {
22  // http://chdk.setepontos.com/index.php/topic,774.msg6347/topicseen.html#msg6347
23  long *canon_data_src = (void*)0xFFB6DA40; // ROM:FF810104
24  long *canon_data_dst = (void*)0x1900; // ROM:FF810108
25  long canon_data_len = 0xCC00; // ROM:FF8100F8
26  long *canon_bss_start = (void*)0xE500; // ROM:FF810130 (canon_data_dst + canon_data_len)
27  long canon_bss_len = 0xA4D10 - 0xE500; // ROM:FF810134 (MEMISOSTART - canon_bss_start)
28  //long canon_bss_len = 0xA4D10 - (long)canon_bss_start;
29  long i;
30 
31  // ROM:FF8100E4 , same as SD800, SD750 and other VxWorks
32  asm volatile(
33  "MRC p15, 0, R0,c1,c0\n"
34  "ORR R0, R0, #0x1000\n"
35  "ORR R0, R0, #4\n"
36  "ORR R0, R0, #1\n"
37  "MCR p15, 0, R0,c1,c0\n"
38  :::"r0"
39  );
40 
41  for(i=0; i<canon_data_len/4; i++)
42  canon_data_dst[i]=canon_data_src[i];
43 
44  for(i=0; i<canon_bss_len/4; i++)
45  canon_bss_start[i]=0;
46 
47  // ROM:FF81015C , same as SD800, SD750 and other VxWorks
48  asm volatile(
49  "MRC p15, 0, R0,c1,c0\n"
50  "ORR R0, R0, #0x1000\n"
51  "BIC R0, R0, #4\n"
52  "ORR R0, R0, #1\n"
53  "MCR p15, 0, R0,c1,c0\n"
54  :::"r0"
55  );
56 
57  h_usrInit();
58 }
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 61 der Datei boot.c.

61  {
62  asm volatile(
63  "STR LR, [SP,#-4]!\n"
64  "BL sub_FF811968\n"
65  "MOV R0, #2\n"
66  "MOV R1, R0\n"
67  "BL sub_FFB54584\n"
68  "BL sub_FFB46DF8\n" // excVecInit()
69  "BL sub_FF8111C4\n" // sysInitStack()
70  "BL sub_FF811728\n"
71  "LDR LR, [SP],#4\n"
72  "B h_usrKernelInit\n"
73  );
74 }
void h_usrKernelInit ( )

Definiert in Zeile 77 der Datei boot.c.

77  {
78  asm volatile(
79  "STMFD SP!, {R4,LR}\n"
80  "SUB SP, SP, #8\n"
81  "BL sub_FFB54A84\n" // classLibInit()
82  "BL sub_FFB6786C\n" // taskLibInit()
83  "LDR R3, =0xD520\n"
84  "LDR R2, =0xA1960\n"
85  "LDR R1, [R3]\n"
86  "LDR R0, =0xA46D0\n"
87  "MOV R3, #0x100\n"
88  "BL sub_FFB6097C\n" // qInit()
89  "LDR R3, =0xD4E0\n"
90  "LDR R0, =0xDD28\n"
91  "LDR R1, [R3]\n"
92  "BL sub_FFB6097C\n" // qInit()
93  "LDR R3, =0xD59C\n"
94  "LDR R0, =0xA46A4\n"
95  "LDR R1, [R3]\n"
96  "BL sub_FFB6097C\n" // qInit()
97  "BL sub_FFB6BC28\n" // workQInit()
98  "BL sub_FF8112AC\n"
99  "MOV R4, #0\n"
100  "MOV R3, R0\n"
101  "MOV R12, #0x800\n"
102  "LDR R0, =h_usrRoot\n" // important !!
103  "MOV R1, #0x4000\n"
104  "LDR R2, =new_sa\n" // skip some memory for later use with CHDK
105  "LDR R2, [R2]\n" // helps "LDR R2, =new_sa\n"
106  "STR R12, [SP]\n"
107  "STR R4, [SP,#4]\n"
108  "BL sub_FFB64AAC\n" // kernelInit()
109  "ADD SP, SP, #8\n"
110  "LDMFD SP!, {R4,PC}\n"
111  );
112 }
void h_usrRoot ( )

Definiert in Zeile 114 der Datei boot.c.

114  {
115  // ROM:FF811A60
116  asm volatile(
117  "STMFD SP!, {R4,R5,LR}\n"
118  "MOV R5, R0\n"
119  "MOV R4, R1\n"
120  "BL sub_FF8119D0\n" // lib_Init()
121  "MOV R1, R4\n"
122  "MOV R0, R5\n"
123  "BL sub_FFB59718\n" // memInit()
124  "MOV R1, R4\n"
125  "MOV R0, R5\n"
126  "BL sub_FFB5A190\n" // memPartLibInit()
127  //"BL sub_FF8117E8\n" // nullsub_1()
128  "BL sub_FF811704\n"
129  "BL sub_FF811A0C\n" // tty_Init() (console log)
130  //"BL sub_FF811A0C_my\n" // tty_Init() (console log)
131  "BL sub_FF8119F0\n" // env_Init()
132  "BL sub_FF811A38\n" // stdlog_Init() (logInit)
133  "BL sub_FF8119C4\n" // show_Init()
134  );
135 
138 
139  drv_self_hide();
140 
141  // ROM:FF811AA0 , same as SD800, SD750
142  asm volatile(
143  "LDMFD SP!, {R4,R5,LR}\n"
144  "B sub_FF81136C\n" // startup_Init()
145  );
146 }

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