source: trunk/platform/sx220hs/lib.c @ 1499

#include "platform.h"
#include "lolevel.h"


void vid_bitmap_refresh()
{
        extern int full_screen_refresh;
        extern void _LockAndRefresh(); // wrapper function for screen lock
        extern void _UnlockAndRefresh(); // wrapper function for screen unlock

        full_screen_refresh |= 3; //found in ScreenUnlock
        _LockAndRefresh();      
        _UnlockAndRefresh();
}


void shutdown()
{
        volatile long *p = (void*)0xC022001C;

        asm(
                "MRS     R1, CPSR\n"
                "AND     R0, R1, #0x80\n"
                "ORR     R1, R1, #0x80\n"
                "MSR     CPSR_cf, R1\n"
                :::"r1","r0");

        *p = 0x44;  // power off.

        while(1);
}

#define LED_PR 0xC0220130


void debug_led(int state)
{
 *(int*)LED_PR=state ? 0x46 : 0x44;
}

void camera_set_led(int led, int state, int bright) {
 static char led_table[2]={0,9};
 _LEDDrive(led_table[led%sizeof(led_table)], state<=1 ? !state : state);
}

int get_flash_params_count(void){
 return 0xA0;  //@FF1B33A0 in GetParameterData
}

void JogDial_CW(void){
 _PostLogicalEventForNotPowerType(0x86E, 2);  // @FF416880
}

void JogDial_CCW(void){
 _PostLogicalEventForNotPowerType(0x86F, 2);  // @FF41688C
}


// Viewport and Bitmap values that shouldn't change across firmware versions.
// Values that may change are in lib.c for each firmware version.

long vid_get_bitmap_screen_width() { return 480; }
long vid_get_bitmap_screen_height() { return 240; }

long vid_get_bitmap_buffer_width() { return 960; }
long vid_get_bitmap_buffer_height() { return 270; }

// Physical width of viewport row in bytes
int vid_get_viewport_byte_width() {
        return 960 * 6 / 4;     // SX220HS - wide screen LCD is 960 pixels wide, each group of 4 pixels uses 6 bytes (UYVYYY)
}

// Y multiplier for cameras with 480 pixel high viewports (CHDK code assumes 240)
int vid_get_viewport_yscale() {
        return 2;               // SX220HS viewport is 480 pixels high
}


int vid_get_viewport_width()
{
        // viewport width table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_w[4] = { 360, 480, 360, 272 };
        return vp_w[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

int vid_get_viewport_xoffset()
{
        // viewport width offset table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_w[4] = { 60, 0, 36, 104 };                               // should all be even values for edge overlay
        return vp_w[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

long vid_get_viewport_height(){ return 240; }