source: titan/titan/oled.h @ 38490

#ifndef OLED_H_
#define OLED_H_

void write2oled(unsigned char *buf, int xres, int yres)
{
        unsigned char* lfb1 = NULL;
        unsigned char* lfb2 = NULL;
        int i = 0;
        int bi = 0;
        int ret = 0;
        
        lfb1 = malloc(xres * yres);
        if(lfb1 == NULL)
                return;
                
        for(i = 0; i <= xres*yres; i++)
        {
                //             R                           B                          G
                lfb1[i] = ((76 * buf[bi+2]) / 255) + ((150 * buf[bi+1]) / 255) + ((28 * buf[bi]) / 255);
                bi = bi + 4;
        }
        
        int lcdfd1 = open(getconfig("vfddev", NULL), O_RDWR);
        
        if(checkchipset("BCM7424") == 1)
        {
                ret = write(lcdfd1, lfb1, xres * yres);
                if(ret != xres * yres)
                        err("write to oled - %s - was not ok", getconfig("vfddev", NULL));
        }
        //Die Displays der dm7020hd, dm7025+(?), dm7080 und dm8000 haben 128*64*4bpp, DM800se hat 96*64*16bpp (RGB565), dm800 und dm7025(?) haben 132*64*1bpp (ältere ggf. 120*64 oder 128*64)
        else if(checkbox("DM7020HD") == 1 || checkbox("DM7020HDV2") == 1)
        {
                unsigned char byte;
                bi = 0;
                lfb2 = malloc(xres * yres / 2);
                if(lfb2 == NULL)
                        return;
                for(i = 0; i <= xres*yres; i = i + 2)
                {
                        byte = lfb1[i] * 15 / 255;
                        lfb2[bi] = (byte << 4) & 0xf0;
                        byte = lfb1[i+1] * 15 / 255;
                        lfb2[bi] |= byte & 0x0f;
                        bi = bi + 1;
                }
                ret = write(lcdfd1, lfb2, xres * yres / 2);
                if(ret != xres * yres / 2)
                        err("write to oled - %s - was not ok", getconfig("vfddev", NULL));
                free(lfb2);
        }
                
        close(lcdfd1);
        
        free(lfb1);
        return;
}

int oledtext(char *value)
{
        struct skin* OLED_all = NULL;
        
        if(getconfigint("oled_off", NULL) == 1)
                return 0;

        m_lock(&status.drawingmutex, 0);
        
        if(checkchipset("BCM7424") == 1)
        {
                if(status.updatevfd == PAUSE)
                        OLED_all = getscreen("OLED_nemesis_menu");
                else if(status.standby > 0)
                        OLED_all = getscreen("OLED_nemesis_standby");
                else
                {
                        if(getskinconfig("OLED_nemesis", NULL) == NULL)
                                OLED_all = getscreen("OLED_nemesis");
                        else
                                OLED_all = getscreen(getskinconfig("OLED_nemesis", NULL));
                }
        }
        else if(checkbox("DM7020HD") == 1 || checkbox("DM7020HDV2") == 1)
        {
                if(status.updatevfd == PAUSE)
                        OLED_all = getscreen("OLED_dream1_menu");
                else if(status.standby > 0)
                        OLED_all = getscreen("OLED_dream1_standby");
                else
                {
                        if(getskinconfig("OLED_dream1", NULL) == NULL)
                                OLED_all = getscreen("OLED_dream1");
                        else
                                OLED_all = getscreen(getskinconfig("OLED_dream1", NULL));
                }
        }       
                
        
        struct skin* textbox = getscreennode(OLED_all, "textbox");
        
        if(status.standby == 2 && status.epgscanlistthread != NULL)
                changetext(textbox, "EPG-Scan");
        else
                changetext(textbox, value);

        drawscreen(OLED_all, 0, 2);
        m_unlock(&status.drawingmutex, 0);
        
        return 0;
}

struct fb* oledaddfb(int width, int height) 
{
        struct fb *newnode = NULL;
        char *name = ostrcat("oledskinfb", NULL, 0, 0);
        newnode = (struct fb*)malloc(sizeof(struct fb));
                
        unsigned char *newskinfb = calloc(1, 4 * width * height);
        if(newskinfb == NULL)
                return NULL; 
        memset(newnode, 0, sizeof(struct fb));
        newnode->name = name;
        newnode->dev = 999;
        newnode->width = width;
        newnode->height = height;
        newnode->colbytes = 4;
        newnode->pitch = newnode->width * newnode->colbytes;
        newnode->fb = newskinfb;
        newnode->fblong = (unsigned long*)newnode->fb;
        newnode->fd = -1;
        newnode->fixfbsize = 4 * width * height;
        newnode->data_phys = 0;
        
        return newnode;
}

void initOLEDdream1()
{
#ifndef LCD_IOCTL_ASC_MODE
#define LCDSET                  0x1000
#define LCD_IOCTL_ASC_MODE              (21|LCDSET)
#define LCD_MODE_ASC                    0
#define LCD_MODE_BIN                    1
#endif

return; //wird nicht benötigt

        int i=LCD_MODE_BIN;
        //int lcdfd = open("/dev/dbox/oled0", O_RDWR);
        int lcdfd1 = open(getconfig("vfddev", NULL), O_RDWR);
        if(lcdfd1 > -1)
        {
                ioctl(lcdfd1, LCD_IOCTL_ASC_MODE, &i);
                close(lcdfd1);
        }
}       

#endif