platform/d30/main.c

/* [<][>][^][v][top][bottom][index][help] */

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 void startup() {
  12     long *bss = &link_bss_start;
  13 
  14     // sanity check
  15     if ((long)&link_bss_end > (MEMISOSTART + MEMISOSIZE)) {
  16         started();
  17         shutdown();
  18     }
  19     // initialize .bss senment
  20     while (bss<&link_bss_end)
  21         *bss++ = 0;
  22 
  23     boot();
  24 }
  25 
  26 // Focus length table
  27 #define NUM_FL      129 // 0 - 128, entries in firmware
  28 #define NUM_DATA    2   // 2 words each entry, first is FL
  29 extern int focus_len_table[NUM_FL*NUM_DATA];
  30 
  31 // Conversion factor lens FL --> 35mm equiv
  32 // lens      35mm     CF
  33 // ----      ----     --
  34 //  5         28      ( 28/ 5) * 50 = 280  (min FL)
  35 // 25        140      (140/25) * 50 = 296  (max FL)
  36 #define CF_EFL      280
  37 #define CF_EFL_DIV  50
  38 
  39 const int zoom_points = NUM_FL;
  40 
  41 int get_effective_focal_length(int zp) {
  42     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  43 }
  44 
  45 int get_focal_length(int zp) {
  46     if (zp < 0) zp = 0;
  47     else if (zp >= NUM_FL) zp = NUM_FL-1;
  48     return focus_len_table[zp*NUM_DATA];
  49 }
  50 
  51 int get_zoom_x(int zp) {
  52     return get_focal_length(zp)*10/focus_len_table[0];
  53 }
  54 
  55 long get_vbatt_min()
  56 {
  57     return 3335;        //Values posted by rdumont99 here: http://chdk.setepontos.com/index.php?topic=9722.msg100229#msg100229
  58 }
  59 
  60 
  61 long get_vbatt_max()
  62 {
  63     return 4040;
  64 }

/* [<][>][^][v][top][bottom][index][help] */

root/platform/d30/main.c

DEFINITIONS