1 #include "lolevel.h"
2 #include "platform.h"
3 #include "core.h"
4 #include "keyboard.h"
5 #include "math.h"
6 #include "conf.h"
7
8 #ifndef CAM_FILE_COUNTER_IS_VAR
9 #ifndef PARAM_FILE_COUNTER
10 # error Please define PARAM_FILE_COUNTER in platform/CAMERA/shooting.c!
11 #endif
12 #endif
13
14 #define AV96_MIN (aperture_sizes_table[0].prop_id)
15
16 const unsigned int SS_SIZE = sizeof(shutter_speeds_table)/sizeof(shutter_speeds_table[0]);
17 const unsigned int AS_SIZE = sizeof(aperture_sizes_table)/sizeof(aperture_sizes_table[0]);
18 const unsigned int ISO_SIZE = sizeof(iso_table)/sizeof(iso_table[0]);
19 const unsigned int MODESCNT = sizeof(modemap)/sizeof(modemap[0]);
20
21 #ifndef CAM_FILE_COUNTER_IS_VAR
22 const unsigned int param_file_counter = PARAM_FILE_COUNTER;
23 #endif
24
25 //-------------------------------------------------------------------
26
27 // Note: shooting functions moved to core/shooting.c
28 // this compiles them as THUMB code to save space
29
30 //-------------------------------------------------------------------
31
32 //***********************
33 /*
34
35 static char debug_str[60];
36
37 void debug_char(char * deb_str)
38 {
39 short debug_str_length=strlen(debug_str);
40 if (debug_str_length>50) strcpy(debug_str, "");
41 sprintf(debug_str+debug_str_length, "%s", deb_str);
42 }
43
44 void debug_init()
45 {
46 strcpy(debug_str, "");
47 }
48
49
50 void debug_int(int deb_str)
51 {
52 short debug_str_length=strlen(debug_str);
53 if (debug_str_length>50) strcpy(debug_str, "");
54 sprintf(debug_str+debug_str_length, "%d", deb_str);
55 }
56
57
58 void debug(char * deb_str, int deb_int)
59 {
60 short debug_str_length=strlen(debug_str);
61 if (debug_str_length>50) strcpy(debug_str, "");
62 sprintf(debug_str+debug_str_length, "%s", deb_str);
63 sprintf(debug_str+strlen(debug_str), "%d", deb_int);
64 }
65
66 char * get_debug()
67 {
68 return debug_str;
69 }
70 */
71 //***********************
72
73 // Core override function
74 void __attribute__((naked,noinline)) shooting_expo_param_override(void)
75 {
76 // Save registers
77 asm volatile("STMFD SP!, {R0-R12,LR}\n");
78
79 // Call thumb code version in core/shooting.c
80 extern void shooting_expo_param_override_thumb();
81 shooting_expo_param_override_thumb();
82
83 // Restore registers
84 asm volatile("LDMFD SP!, {R0-R12,PC}\n");
85 }
86
87 // Override ISO settings only
88 // need to do this before exposure calc for ISO, as well as after on some cameras
89 void __attribute__((naked,noinline)) shooting_expo_iso_override(void)
90 {
91 // Save registers
92 asm volatile("STMFD SP!, {R0-R12,LR}\n");
93
94 // Call thumb code version in core/shooting.c
95 extern void shooting_expo_iso_override_thumb(void);
96 shooting_expo_iso_override_thumb();
97
98 // Restore registers
99 asm volatile("LDMFD SP!, {R0-R12,PC}\n");
100 }
101
102 // this can be used to create event procedure "hooks" at certain points in the camera firmware
103 // as described in http://chdk.setepontos.com/index.php/topic,5690.0.html
104 // not currently used
105 #if 0
106 //extern unsigned _ExecuteEventProcedure(const char *name,...);
107 extern int overridden_PT_CompleteFileWrite();
108
109 // ExecuteEventProducedure isn't safe to call from thumb on all cams
110 // since there's not much else here, not worth running through call_func_ptr
111 int register_pt_hooks() {
112 // older cams only have SystemEventInit
113 // TODO these probably don't support PT_CompleteFileWrite anyway
114 if(_ExecuteEventProcedure("SystemEventInit") == -1) {
115 if(_ExecuteEventProcedure("System.Create") == -1) {
116 return 1;
117 }
118 }
119 if(_ExecuteEventProcedure("RegisterProductTestEvent") == -1) {
120 if(_ExecuteEventProcedure("SS.Create") == -1) {
121 return 2;
122 }
123 }
124 // check if PT_CompleteFileWrite eventproc was registered by above
125 // if not registered, firmware returns -1
126 // default PT_ComleteFileWrite normally returns 0,
127 // arg will handle if it just does a BX LR
128 if(_ExecuteEventProcedure("PT_CompleteFileWrite",0) == -1) {
129 return 4;
130 }
131 // note override must be in ARM code
132 if(_ExecuteEventProcedure("ExportToEventProcedure","PT_CompleteFileWrite",overridden_PT_CompleteFileWrite) == -1) {
133 return 3;
134 }
135 //_LogCameraEvent(0x120,"pt hook(s) registered");
136 return 0;
137 }
138 #endif