platform/sx110is/main.c

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This source file includes following definitions.

startup
get_effective_focal_length
get_focal_length
get_zoom_x
get_vbatt_min
get_vbatt_max

   1 #include "lolevel.h"
   2 #include "platform.h"
   3 #include "core.h"
   4 #include "keyboard.h"
   5 
   6 
   7 extern long link_bss_start;
   8 extern long link_bss_end;
   9 extern void boot();
  10 
  11 
  12 void startup()
  13 {
  14     long *bss = &link_bss_start;
  15 
  16     // sanity check
  17     if ((long)&link_bss_end > (MEMISOSTART + MEMISOSIZE)){
  18         started();
  19         shutdown();
  20     }
  21 
  22     // initialize .bss senment
  23     while (bss<&link_bss_end)
  24         *bss++ = 0;
  25 
  26 //debug_led(1);
  27     boot();
  28 }
  29 
  30 // Focus length table in firmware @0xfffe31bc
  31 #define NUM_FL      23  // 0 - 22, entries in firmware
  32 #define NUM_DATA    3   // 3 words each entry, first is FL
  33 extern int focus_len_table[NUM_FL*NUM_DATA];
  34 
  35 // Conversion factor lens FL --> 35mm equiv
  36 // lens      35mm     CF
  37 // ----      ----     --
  38 // 6.0       36       ( 36/ 6.0) * 60 = 360  (min FL)
  39 // 60.0      360      (360/60.0) * 60 = 360  (max FL)
  40 #define CF_EFL      360
  41 #define CF_EFL_DIV  60
  42 
  43 const int zoom_points = NUM_FL;
  44 
  45 int get_effective_focal_length(int zp) {
  46     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  47 }
  48 
  49 int get_focal_length(int zp) {
  50     if (zp < 0) zp = 0;
  51     else if (zp >= NUM_FL) zp = NUM_FL-1;
  52     return focus_len_table[zp*NUM_DATA];
  53 }
  54 
  55 int get_zoom_x(int zp) {
  56     return get_focal_length(zp)*10/focus_len_table[0];
  57 }
  58 
  59 long get_vbatt_min()
  60 {
  61     return 2300;                //from sx100, 4550 in sx10
  62 }
  63 
  64 long get_vbatt_max()
  65 {
  66     return 2550;        //from sx100, 5150 in sx10
  67 }

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root/platform/sx110is/main.c

DEFINITIONS