root/platform/a2300/lib.c

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DEFINITIONS

This source file includes following definitions.
  1. shutdown
  2. debug_led
  3. camera_set_led
  4. vid_get_viewport_width
  5. vid_get_viewport_height
  6. vid_get_viewport_fb
  7. vid_get_viewport_live_fb
  8. vid_bitmap_refresh
  9. vid_get_bitmap_active_palette
  10. load_chdk_palette
  11. vid_get_palette_type
  12. vid_get_palette_size
  13. vid_get_bitmap_active_buffer

   1 #include "platform.h"
   2 #include "platform_palette.h"
   3 #include "lolevel.h"
   4 
   5 #define LED_PR 0xC0220120
   6 //#define LED_AF 0xC0223030
   7 
   8 void shutdown()
   9 {
  10         volatile long *p = (void*)LED_PR;
  11 
  12         asm(
  13                 "MRS     R1, CPSR\n"
  14                 "AND     R0, R1, #0x80\n"
  15                 "ORR     R1, R1, #0x80\n"
  16                 "MSR     CPSR_cf, R1\n"
  17                 :::"r1","r0");
  18 
  19         *p = 0x44;  // power off.
  20 
  21         while(1);
  22 }
  23 
  24 void debug_led(int state)
  25 {
  26         // using power LED, which defaults to on
  27         // for debugging turn LED off if state is 1 and on for state = 0
  28         // leaves LED on at end of debugging
  29      *(int*)LED_PR=state ? 0x46 : 0x44;
  30 }
  31 
  32 // To do: Check this!!!
  33 // A2300 has two 'lights' - Power LED, and AF assist lamp
  34 // Power Led = first entry in table (led 0)
  35 // AF Assist Lamp = second entry in table (led 1)
  36 void camera_set_led(int led, int state, int bright) {
  37         static char led_table[2]={0,4};
  38         _LEDDrive(led_table[led%sizeof(led_table)], state<=1 ? !state : state);
  39 }
  40 
  41 int vid_get_viewport_width()
  42 {
  43     return 360;
  44 }
  45 
  46 long vid_get_viewport_height()
  47 {
  48     return 240;
  49 }
  50 
  51 // Defined in stubs_entry.S
  52 extern char active_viewport_buffer;
  53 extern void* viewport_buffers[];
  54 
  55 void *vid_get_viewport_fb()
  56 {
  57     // Return first viewport buffer - for case when vid_get_viewport_live_fb not defined
  58     return viewport_buffers[0];
  59 }
  60 
  61 void *vid_get_viewport_live_fb()
  62 {
  63     if (MODE_IS_VIDEO(mode_get()))
  64         return viewport_buffers[0];     // Video only seems to use the first viewport buffer.
  65 
  66     // Hopefully return the most recently used viewport buffer so that motion detect, histogram, zebra and edge overly are using current image data
  67     return viewport_buffers[(active_viewport_buffer-1)&3];
  68 }
  69 
  70 void vid_bitmap_refresh() 
  71 {
  72         extern int full_screen_refresh;
  73     extern void _ScreenLock();
  74     extern void _ScreenUnlock();
  75 
  76         full_screen_refresh |= 3;
  77     _ScreenLock();
  78     _ScreenUnlock();
  79 }
  80 
  81 void *vid_get_bitmap_active_palette() {
  82         extern int active_palette_buffer;
  83         extern char* palette_buffer[];
  84         return (palette_buffer[active_palette_buffer]+4);
  85 }
  86 
  87 #ifdef CAM_LOAD_CUSTOM_COLORS
  88 // Function to load CHDK custom colors into active Canon palette
  89  
  90 void load_chdk_palette() {
  91 
  92         extern int active_palette_buffer;
  93         // Only load for the standard record and playback palettes
  94         if ((active_palette_buffer == 0) || (active_palette_buffer == 5))
  95         {
  96                 int *pal = (int*)vid_get_bitmap_active_palette();
  97                 if (pal[CHDK_COLOR_BASE+0] != 0x33ADF62)
  98                 {                
  99                         pal[CHDK_COLOR_BASE+0]  = 0x33ADF62;  // Red
 100                         pal[CHDK_COLOR_BASE+1]  = 0x326EA40;  // Dark Red
 101                         pal[CHDK_COLOR_BASE+2]  = 0x34CD57F;  // Light Red
 102                         pal[CHDK_COLOR_BASE+3]  = 0x373BFAE;  // Green
 103                         pal[CHDK_COLOR_BASE+4]  = 0x34BD6CA;  // Dark Green
 104                         pal[CHDK_COLOR_BASE+5]  = 0x395AB95;  // Light Green
 105                         pal[CHDK_COLOR_BASE+6]  = 0x34766F0;  // Blue
 106                         pal[CHDK_COLOR_BASE+7]  = 0x31250F3;  // Dark Blue
 107                         pal[CHDK_COLOR_BASE+8]  = 0x37F408F;  // Cyan
 108                         pal[CHDK_COLOR_BASE+9]  = 0x3512D5B;  // Magenta
 109                         pal[CHDK_COLOR_BASE+10] = 0x3A9A917;  // Yellow
 110                         pal[CHDK_COLOR_BASE+11] = 0x3819137;  // Dark Yellow
 111                         pal[CHDK_COLOR_BASE+12] = 0x3DED115;  // Light Yellow
 112 
 113                         extern char palette_control;
 114                         palette_control = 1;
 115                         vid_bitmap_refresh();
 116         }
 117     }
 118 }
 119 #endif
 120 
 121 // Functions for PTP Live View system
 122 int vid_get_palette_type()                      { return 3; }
 123 int vid_get_palette_size()                      { return 256 * 4; }
 124 
 125 void *vid_get_bitmap_active_buffer()
 126 {
 127     return (void*)(*(int*)(0x542C+0x18)); //found @ loc_ff90a118 a2300 b101
 128 }

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