platform/ixus970_sd890/main.c

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This source file includes following definitions.

startup
get_effective_focal_length
get_focal_length
get_zoom_x
rec_switch_state
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 
  20         // initialize .bss senment
  21         while (bss<&link_bss_end)
  22                 *bss++ = 0;
  23 
  24         boot();
  25 }
  26 
  27 // Focus length table in firmware @0xfffe297c
  28 #define NUM_FL      12  // 0 - 11, entries in firmware
  29 #define NUM_DATA    3   // 3 words each entry, first is FL
  30 extern int focus_len_table[NUM_FL*NUM_DATA];
  31 
  32 // Conversion factor lens FL --> 35mm equiv
  33 // lens      35mm     CF
  34 // ----      ----     --
  35 // 6.6       37       ( 37/ 6.6) * 66 = 370  (min FL)
  36 // 33.0      185      (185/33.0) * 66 = 370  (max FL)
  37 #define CF_EFL      370
  38 #define CF_EFL_DIV  66
  39 
  40 const int zoom_points = NUM_FL;
  41 
  42 int get_effective_focal_length(int zp) {
  43     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  44 }
  45 
  46 int get_focal_length(int zp) {
  47     if (zp < 0) zp = 0;
  48     else if (zp >= NUM_FL) zp = NUM_FL-1;
  49     return focus_len_table[zp*NUM_DATA];
  50 }
  51 
  52 int get_zoom_x(int zp) {
  53     return get_focal_length(zp)*10/focus_len_table[0];
  54 }
  55 
  56 #if 0
  57 int rec_switch_state(void) {
  58 // play/rec without override ? This camera has play button, so not clear
  59 //      mode  = (physw_status[1] & 0x00010000) ? MODE_REC : MODE_PLAY;
  60         return (physw_status[1] & 0x00010000);
  61 }
  62 #endif
  63 
  64 long get_vbatt_min()
  65 {
  66         return 3500;
  67 }
  68 
  69 long get_vbatt_max()
  70 {
  71         return 4100;
  72 }

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root/platform/ixus970_sd890/main.c

DEFINITIONS