platform/a4000/lib.c

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This source file includes following definitions.
shutdown
debug_led
camera_set_led
vid_get_viewport_width
vid_get_viewport_height
vid_get_viewport_fb
vid_get_viewport_live_fb
vid_bitmap_refresh
vid_get_bitmap_active_palette
load_chdk_palette
vid_get_palette_type
vid_get_palette_size
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 
   7 void shutdown()
   8 {
   9         volatile long *p = (void*)LED_PR;
  10 
  11         asm(
  12                 "MRS     R1, CPSR\n"
  13                 "AND     R0, R1, #0x80\n"
  14                 "ORR     R1, R1, #0x80\n"
  15                 "MSR     CPSR_cf, R1\n"
  16                 :::"r1","r0");
  17 
  18         *p = 0x44;  // power off.
  19 
  20         while(1);
  21 }
  22 
  23 void debug_led(int state)
  24 {
  25         // using power LED, which defaults to on
  26         // for debugging turn LED off if state is 1 and on for state = 0
  27         // leaves LED on at end of debugging
  28      *(int*)LED_PR=state ? 0x46 : 0x44;
  29 }
  30 
  31 // A4000IS has two 'lights' - Power LED, and AF assist lamp
  32 // Power Led = first entry in table (led 0)
  33 // AF Assist Lamp = second entry in table (led 1)
  34 void camera_set_led(int led, int state, __attribute__ ((unused))int bright) {
  35     static char led_table[2]={0,4};
  36     if(state<=1) _LEDDrive(led_table[led%sizeof(led_table)], (!state)&1);
  37 }
  38 
  39 int vid_get_viewport_width()
  40 {
  41     return 360;
  42 }
  43 
  44 long vid_get_viewport_height()
  45 {
  46     return 240;
  47 }
  48 
  49 // Defined in stubs_entry.S
  50 extern char active_viewport_buffer;
  51 extern void* viewport_buffers[];
  52 
  53 void *vid_get_viewport_fb()
  54 {
  55     // Return first viewport buffer - for case when vid_get_viewport_live_fb not defined
  56     return viewport_buffers[0];
  57 }
  58 
  59 void *vid_get_viewport_live_fb()
  60 {
  61     if (MODE_IS_VIDEO(mode_get()))
  62         return viewport_buffers[0];     // Video only seems to use the first viewport buffer.
  63 
  64     // Hopefully return the most recently used viewport buffer so that motion detect, histogram, zebra and edge overly are using current image data
  65     return viewport_buffers[(active_viewport_buffer-1)&3];
  66 }
  67 
  68 
  69 void vid_bitmap_refresh() {
  70 
  71     extern int full_screen_refresh;
  72     extern void _ScreenLock();
  73     extern void _ScreenUnlock();
  74 
  75     full_screen_refresh |= 3;
  76     _ScreenLock();
  77     _ScreenUnlock();
  78 }
  79 
  80 void *vid_get_bitmap_active_palette() {
  81     extern int active_palette_buffer;
  82     extern char* palette_buffer[];
  83     void* p = palette_buffer[active_palette_buffer];
  84     // Don't add offset if value is 0
  85     if (p) p += 4;
  86     return p;
  87 }
  88 
  89 
  90 #ifdef CAM_LOAD_CUSTOM_COLORS
  91 // Function to load CHDK custom colors into active Canon palette
  92 // To do:
  93 void load_chdk_palette() {
  94 
  95         extern int active_palette_buffer;
  96         // Only load for the standard record and playback palettes
  97         if ((active_palette_buffer == 0) || (active_palette_buffer == 5))
  98         {
  99                 int *pal = (int*)vid_get_bitmap_active_palette();
 100                 if (pal && pal[CHDK_COLOR_BASE+0] != 0x33ADF62)
 101                 {
 102                         pal[CHDK_COLOR_BASE+0]  = 0x33ADF62;  // Red
 103                         pal[CHDK_COLOR_BASE+1]  = 0x326EA40;  // Dark Red
 104                         pal[CHDK_COLOR_BASE+2]  = 0x34CD57F;  // Light Red
 105                         pal[CHDK_COLOR_BASE+3]  = 0x373BFAE;  // Green
 106                         pal[CHDK_COLOR_BASE+4]  = 0x34BD6CA;  // Dark Green
 107                         pal[CHDK_COLOR_BASE+5]  = 0x395AB95;  // Light Green
 108                         pal[CHDK_COLOR_BASE+6]  = 0x34766F0;  // Blue
 109                         pal[CHDK_COLOR_BASE+7]  = 0x31250F3;  // Dark Blue
 110                         pal[CHDK_COLOR_BASE+8]  = 0x37F408F;  // Cyan
 111                         pal[CHDK_COLOR_BASE+9]  = 0x3512D5B;  // Magenta
 112                         pal[CHDK_COLOR_BASE+10] = 0x3A9A917;  // Yellow
 113                         pal[CHDK_COLOR_BASE+11] = 0x3819137;  // Dark Yellow
 114                         pal[CHDK_COLOR_BASE+12] = 0x3DED115;  // Light Yellow
 115 
 116                         extern char palette_control;
 117                         palette_control = 1;
 118                         vid_bitmap_refresh();
 119         }
 120     }
 121 }
 122 #endif
 123 
 124 // Functions for PTP Live View system
 125 // 256 entry palette based on a4000.100c
 126 // sub_FF90ACB8  <- Called for a function with 1 ref to **"Palette Class. (sub_ffab8ef0)
 127 int vid_get_palette_type()                      { return 3; }
 128 int vid_get_palette_size()                      { return 256 * 4; }
 129 
 130 void *vid_get_bitmap_active_buffer()
 131 {   //found @loc_ff90ad5c a4000.100c ->Called before *"..<GetBmpVramInfo> Add
 132     return (void*)(*(int*)(0x5470+0x18));
 133 }
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root/platform/a4000/lib.c

DEFINITIONS
