root/platform/ixus960_sd950/main.c

DEFINITIONS

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

   1 #include "lolevel.h"
   2 #include "platform.h"
   3 #include "core.h"
   4 #include "keyboard.h"
   5 extern long link_bss_start;
   6 extern long link_bss_end;
   7 extern void boot();
   8 long get_sensor_width()
   9 {
  10 return 5760;
  11 }
  12 void startup()
  13 {
  14 long *bss = &link_bss_start;
  16 if ((long)&link_bss_end > (MEMISOSTART + MEMISOSIZE)){
started();
shutdown();
  19 }
  21 while (bss<&link_bss_end)
  22 *bss++ = 0;
boot();
  24 }
  26 // Focus length table in firmware @0xfffe296c
  27 #define NUM_FL      8   // 0 - 7, entries in firmware
  28 #define NUM_DATA    3   // 3 words each entry, first is FL
  29 extern int focus_len_table[NUM_FL*NUM_DATA];
  31 // Conversion factor lens FL --> 35mm equiv
  32 // lens      35mm     CF
  33 // ----      ----     --
  34 // 7.7       36       ( 36/ 7.7) * 77 = 360  (min FL)
  35 // 28.5      133      (133/28.5) * 77 = 359.3  (max FL)
  36 #define CF_EFL      360
  37 #define CF_EFL_DIV  77
  39 const int zoom_points = NUM_FL;
  41 int get_effective_focal_length(int zp) {
  42     return (CF_EFL*get_focal_length(zp))/CF_EFL_DIV;
  43 }
  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 }
  51 int get_zoom_x(int zp) {
  52     return get_focal_length(zp)*10/focus_len_table[0];
  53 }
  55 #if 0
  56 int rec_switch_state(void) {
  57 // both were in the original mode_get() function, status unknown
  58 //      mode  = (physw_status[1] & 0x08000000)?MODE_PLAY:MODE_REC;
  59 //      mode  = (physw_status[0] & 0x00000040)?MODE_REC:MODE_PLAY;
  60         return (physw_status[0] & 0x00000040);
  61 }
  62 #endif
  64 long get_vbatt_min()
  65 {
  66 return 3500;
  67 }
  68 long get_vbatt_max()
  69 {
  70 return 4100;
  71 }