root/platform/a590/main.c

DEFINITIONS

1. startup
2. get_effective_focal_length
3. get_focal_length
4. get_zoom_x
5. rec_switch_state
6. get_vbatt_min
7. get_vbatt_max

   1 #include "camera.h"
   2 #include "lolevel.h"
   3 #include "platform.h"
   4 #include "core.h"
   5 #include "keyboard.h"
   6 #include "stdlib.h"
   8 extern long link_bss_start;
   9 extern long link_bss_end;
  10 extern void boot();
  13 void startup()
  14 {
  15     long *bss = &link_bss_start;
  17     // sanity check
  18     if ((long)&link_bss_end > (MEMISOSTART + MEMISOSIZE)){
started();
shutdown();
  21     }
  23     // initialize .bss senment
  24     while (bss<&link_bss_end)
  25         *bss++ = 0;
boot();
  29 }
  31 // Focus length table in firmware @0xfffe29ac
  32 #define NUM_FL      8   // 0 - 7, entries in firmware
  33 #define NUM_DATA    3   // 3 words each entry, first is FL
  34 extern int focus_len_table[NUM_FL*NUM_DATA];
  36 // Conversion factor lens FL --> 35mm equiv
  37 // lens      35mm     CF
  38 // ----      ----     --
  39 // 5.8       35       ( 35/ 5.8) * 58 = 350  (min FL)
  40 // 23.2      140      (140/23.2) * 58 = 350  (max FL)
  41 #define CF_EFL      350
  42 #define CF_EFL_DIV  58
  44 const int zoom_points = NUM_FL;
  46 int get_effective_focal_length(int zp) {
  47     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  48 }
  50 int get_focal_length(int zp) {
  51     if (zp < 0) zp = 0;
  52     else if (zp >= NUM_FL) zp = NUM_FL-1;
  53     return focus_len_table[zp*NUM_DATA];
  54 }
  56 int get_zoom_x(int zp) {
  57     return get_focal_length(zp)*10/focus_len_table[0];
  58 }
  60 #if 0
  61 int rec_switch_state(void) {
  62 //      mode  = (physw_status[1] & 0x02000000)?MODE_REC:MODE_PLAY;
  63         return (physw_status[1] & 0x02000000);
  64 }
  65 #endif
  67 long get_vbatt_min()
  68 {
  69     return 2300;
  70 }
  72 long get_vbatt_max()
  73 {
  74     return 2550;
  75 }