source: trunk/platform/ixus310_elph500hs/lib.c @ 1430

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

void vid_bitmap_refresh()
{
        extern int full_screen_refresh;
        extern void _ScreenUnlock();
        extern void _ScreenLock();

        full_screen_refresh |= 3;
        _ScreenLock();
        _ScreenUnlock();
}


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 0xC0220110       // Power Indicator

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

// IXUS 310 has 2 led values
// 0/7 - Power LED (Green)
// 1/11 - AF Assist Lamp
void camera_set_led(int led, int state, int bright) {
 static char led_table[2]={7,11};
 _LEDDrive(led_table[led%sizeof(led_table)], state<=1 ? !state : state);
}

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

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

// Defined in stubs_min.S
extern char active_viewport_buffer;
extern void* viewport_buffers[];

void *vid_get_viewport_fb()
{
    // Return first viewport buffer - for case when vid_get_viewport_live_fb not defined
    // Offset the return value because the viewport is left justified instead of centered on this camera
    return viewport_buffers[0] - vid_get_viewport_xoffset()*3;
}

void *vid_get_viewport_live_fb()
{
    // Hopefully return the most recently used viewport buffer so that motion detect, histogram, zebra and edge overly are using current image data
    // Offset the return value because the viewport is left justified instead of centered on this camera
    return viewport_buffers[(active_viewport_buffer-1)&3] - vid_get_viewport_xoffset()*3;
}

// Defined in stubs_min.S
extern int active_bitmap_buffer;
extern char* bitmap_buffer[];

void *vid_get_bitmap_fb()
{
    // Return first bitmap buffer address
    return bitmap_buffer[0];
}

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; }

int vid_get_viewport_buffer_width() { return 960; }     // IXUS 310 - wide screen LCD (viewport is actually 480 high, CHDK not set up for this so we skip every 2nd row)

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[5] = { 360, 480, 408, 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[5] = { 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; }

// viewport image offset - used when image size != viewport size (zebra, histogram, motion detect & edge overlay)
// returns the byte offset into the viewport buffer where the image pixels start (to skip any black borders)
int vid_get_viewport_image_offset() {
        return vid_get_viewport_xoffset() * 3;
}

// viewport image offset - used when image size != viewport size (zebra, histogram, motion detect & edge overlay)
// returns the byte offset to skip at the end of a viewport buffer row to get to the next row.
int vid_get_viewport_row_offset() {
        return (vid_get_viewport_buffer_width() - vid_get_viewport_width()) * 3;
}

// Functions for PTP Live View system

int vid_get_viewport_xoffset_proper()           { return vid_get_viewport_xoffset() * 2; }
int vid_get_viewport_yoffset_proper()           { return 480; }
int vid_get_viewport_width_proper()             { return vid_get_viewport_width() * 2; }
int vid_get_viewport_height_proper()            { return 480; }
int vid_get_viewport_max_width()                { return 960; }
int vid_get_viewport_max_height()               { return 480; }
int vid_get_palette_type()                      { return 3; }
int vid_get_palette_size()                      { return 256 * 4; }
int vid_get_aspect_ratio()                      { return 1; }

void *vid_get_bitmap_active_buffer()
{
    return bitmap_buffer[active_bitmap_buffer];
}

void *vid_get_bitmap_active_palette()
{
    extern int active_palette_buffer;
    extern char* palette_buffer[];
    return (palette_buffer[active_palette_buffer]+8);
}

// Function to load CHDK custom colors into active Canon palette
void load_chdk_palette()
{
    extern int active_palette_buffer;
    // Only load for the standard record and playback palettes
    if ((active_palette_buffer == 0) || (active_palette_buffer == 16))
    {
        int *pal = (int*)vid_get_bitmap_active_palette();
        if (pal[CHDK_COLOR_BASE+0] != 0x33ADF62)
        {
            pal[CHDK_COLOR_BASE+0]  = 0x33ADF62;  // Red
            pal[CHDK_COLOR_BASE+1]  = 0x326EA40;  // Dark Red
            pal[CHDK_COLOR_BASE+2]  = 0x34CD57F;  // Light Red
            pal[CHDK_COLOR_BASE+3]  = 0x373BFAE;  // Green
            pal[CHDK_COLOR_BASE+4]  = 0x34BD6CA;  // Dark Green
            pal[CHDK_COLOR_BASE+5]  = 0x395AB95;  // Light Green
            pal[CHDK_COLOR_BASE+6]  = 0x34766F0;  // Blue
            pal[CHDK_COLOR_BASE+7]  = 0x31250F3;  // Dark Blue
            pal[CHDK_COLOR_BASE+8]  = 0x37F408F;  // Cyan
            pal[CHDK_COLOR_BASE+9]  = 0x3512D5B;  // Magenta
            pal[CHDK_COLOR_BASE+10] = 0x3A9A917;  // Yellow
            pal[CHDK_COLOR_BASE+11] = 0x3819137;  // Dark Yellow
            pal[CHDK_COLOR_BASE+12] = 0x3DED115;  // Light Yellow

            extern char palette_control;
            palette_control = 1;
            vid_bitmap_refresh();
        }
    }
}