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))
 
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)  )

!!

Definiert in Zeile 17 der Datei boot.c.

24 {
25  int i;
26 
27  *((volatile long *) 0xc0220084) = 0x46; // Turn on LED
28  for (i=0; i<duration; i++) // Wait a while
29  {
30  asm volatile ( "nop\n" );
31  }
32 
33  *((volatile long *) 0xc0220084) = 0x44; // Turn off LED
34  for (i=0; i<duration; i++) // Wait a while
35  {
36  asm volatile ( "nop\n" );
37  }
38 }
39 
40 void blink_orange(int duration)
41 {
42  int i;
43 
44  *((volatile long *) 0xc0220080) = 0x46; // Turn on LED
45  for (i=0; i<duration; i++) // Wait a while
46  {
47  asm volatile ( "nop\n" );
48  }
49 
50  *((volatile long *) 0xc0220080) = 0x44; // Turn off LED
51  for (i=0; i<duration; i++) // Wait a while
52  {
53  asm volatile ( "nop\n" );
54  }
55 }
56 
57 void blink()
58 {
59  blink_blue(10000000);
60  blink_orange(10000000);
61  blink_blue(10000000);
62 }
63 #endif
64 
65 void boot()
66 {
67  long *canon_data_src = (void*)0xFFEC54F0;
68  long *canon_data_dst = (void*)0x1900;
69  long canon_data_len = 0xEBC0 - 0x1900;
70  long *canon_bss_start = (void*)0xEBC0; // just after data
71  long canon_bss_len = 0x9F7D0 - 0xEBC0;
72  long i;
73 
74  asm volatile (
75  "MRC p15, 0, R0,c1,c0\n"
76  "ORR R0, R0, #0x1000\n"
77  "ORR R0, R0, #4\n"
78  "ORR R0, R0, #1\n"
79  "MCR p15, 0, R0,c1,c0\n"
80  :::"r0");
81 
82  for(i=0;i<canon_data_len/4;i++)
83  canon_data_dst[i]=canon_data_src[i];
84 
85  for(i=0;i<canon_bss_len/4;i++)
86  canon_bss_start[i]=0;
87 
88  asm volatile (
89  "MRC p15, 0, R0,c1,c0\n"
90  "ORR R0, R0, #0x1000\n"
91  "BIC R0, R0, #4\n"
92  "ORR R0, R0, #1\n"
93  "MCR p15, 0, R0,c1,c0\n"
94  :::"r0");
95 
96  h_usrInit();
97 }
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 100 der Datei boot.c.

101 {
102  asm volatile (
103  "STR LR, [SP,#-4]!\n"
104  "BL sub_FFC01968\n"
105  "MOV R0, #2\n"
106  "MOV R1, R0\n"
107  "BL sub_FFEAB86C\n" //unknown_libname_773 ; "Canon A-Series Firmware"
108  "BL sub_FFE9CEDC\n" //excVecInit
109  "BL sub_FFC011C4\n"
110  "BL sub_FFC01728\n"
111  "LDR LR, [SP],#4\n"
112  "B h_usrKernelInit\n"
113  );
114 }
void h_usrKernelInit ( )

Definiert in Zeile 116 der Datei boot.c.

117 {
118 // blink();
119  asm volatile (
120  "STMFD SP!, {R4,LR}\n"
121  "SUB SP, SP, #8\n"
122  "BL sub_FFEABD6C\n" //classLibInit
123  "BL sub_FFEBEB54\n" //taskLibInit
124  "LDR R3, =0xDBD8\n"
125  "LDR R2, =0x9C460\n"
126  "LDR R1, [R3]\n"
127  "LDR R0, =0x9F190\n"
128  "MOV R3, #0x100\n"
129  "BL sub_FFEB7C64\n" //qInit
130  "LDR R3, =0xDB98\n"
131  "LDR R0, =0xE3E0\n"
132  "LDR R1, [R3]\n"
133  "BL sub_FFEB7C64\n" //qInit
134  "LDR R3, =0xDC54\n"
135  "LDR R0, =0x9F164\n"
136  "LDR R1, [R3]\n"
137  "BL sub_FFEB7C64\n" //qInit
138  "BL sub_FFEC36D4\n" //workQInit
139  "BL sub_FFC012B0\n"
140  "MOV R4, #0\n"
141  "MOV R3, R0\n"
142  "MOV R12, #0x800\n"
143  "LDR R0, =h_usrRoot\n"
144  "MOV R1, #0x4000\n"
145  );
146  asm volatile (
147  "LDR R2, =new_sa\n"
148  "LDR R2, [R2]\n"
149  );
150  asm volatile (
151  "STR R12, [SP]\n"
152  "STR R4, [SP,#4]\n"
153  "BL sub_FFEBBD94\n" //kernelInit
154  "ADD SP, SP, #8\n"
155  "LDMFD SP!, {R4,PC}\n"
156  );
157 }
void h_usrRoot ( )

Definiert in Zeile 160 der Datei boot.c.

161 {
162  asm volatile (
163  "STMFD SP!, {R4,R5,LR}\n"
164  "MOV R5, R0\n"
165  "MOV R4, R1\n"
166  "BL sub_FFC019D0\n"
167  "MOV R1, R4\n"
168  "MOV R0, R5\n"
169  "BL sub_FFEB0A00\n" //memInit
170  "MOV R1, R4\n"
171  "MOV R0, R5\n"
172  "BL sub_FFEB1478\n" //memPartLibInit
173  "BL sub_FFC017E8\n" //SetZoomActuatorSpeedPercent
174  "BL sub_FFC01704\n"
175  "BL sub_FFC01A10\n"
176  "BL sub_FFC019F4\n"
177  "BL sub_FFC01A3C\n"
178  "BL sub_FFC019C4\n"
179  );
180 
181  _taskCreateHookAdd(createHook);
182  _taskDeleteHookAdd(deleteHook);
183 
184  drv_self_hide();
185 // blink(); // "BL blink\n"
186 
187  asm volatile (
188  "LDMFD SP!, {R4,R5,LR}\n"
189  "B sub_FFC0136C\n"
190  );
191 }

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