platform/sx170is/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 extern long link_bss_start;
   7 extern long link_bss_end;
   8 extern void boot();
   9 
  10 void startup()
  11 {
  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     boot();
  23 }
  24 
  25 #define NUM_FL      127 // 0 - 126, entries in firmware
  26 #define NUM_DATA    2   // 2 words each entry, first is FL
  27 extern int focus_len_table[NUM_FL*NUM_DATA];
  28 
  29 // Conversion factor lens FL --> 35mm equiv
  30 // lens      35mm     CF
  31 // ----      ----     --
  32 // 5.0       28       ( 28/ 5.0) * 50 = 280  (min FL)
  33 // 80.0      448      (448/80.0) * 50 = 280  (max FL)
  34 #define CF_EFL      280
  35 #define CF_EFL_DIV  50
  36 
  37 const int zoom_points = NUM_FL;
  38 
  39 int get_effective_focal_length(int zp) {
  40     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  41 }
  42 
  43 int get_focal_length(int zp) {
  44     if (zp < 0) zp = 0;
  45     else if (zp >= NUM_FL) zp = NUM_FL-1;
  46     return focus_len_table[zp*NUM_DATA];
  47 }
  48 
  49 int get_zoom_x(int zp) {
  50     return get_focal_length(zp)*10/focus_len_table[0];
  51 }
  52 
  53 // uses NB-11L, should be similar to other single cell li-ion
  54 long get_vbatt_min()
  55 {
  56     return 3250;
  57 }
  58 
  59 long get_vbatt_max()
  60 {
  61     return 4000;
  62 }

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root/platform/sx170is/main.c

DEFINITIONS