C++ (Cpp) VIN_IS_NTSC Examples

Example #1

File: max7456.c Project: Ralfde/betaflight

void max7456ReInit(void)
{
    uint8_t srdata = 0;
    static bool firstInit = true;

    __spiBusTransactionBegin(busdev);

    switch (videoSignalCfg) {
    case VIDEO_SYSTEM_PAL:
        videoSignalReg = VIDEO_MODE_PAL | OSD_ENABLE;
        break;

    case VIDEO_SYSTEM_NTSC:
        videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
        break;

    case VIDEO_SYSTEM_AUTO:
        srdata = max7456Send(MAX7456ADD_STAT, 0x00);

        if (VIN_IS_NTSC(srdata)) {
            videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
        } else if (VIN_IS_PAL(srdata)) {
            videoSignalReg = VIDEO_MODE_PAL | OSD_ENABLE;
        } else {
            // No valid input signal, fallback to default (XXX NTSC for now)
            videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
        }
        break;
    }

    if (videoSignalReg & VIDEO_MODE_PAL) { //PAL
        maxScreenSize = VIDEO_BUFFER_CHARS_PAL;
    } else {              // NTSC
        maxScreenSize = VIDEO_BUFFER_CHARS_NTSC;
    }

    // Set all rows to same charactor black/white level
    max7456Brightness(0, 2);
    // Re-enable MAX7456 (last function call disables it)
    __spiBusTransactionBegin(busdev);

    // Make sure the Max7456 is enabled
    max7456Send(MAX7456ADD_VM0, videoSignalReg);
    max7456Send(MAX7456ADD_HOS, hosRegValue);
    max7456Send(MAX7456ADD_VOS, vosRegValue);

    max7456Send(MAX7456ADD_DMM, displayMemoryModeReg | CLEAR_DISPLAY);
    __spiBusTransactionEnd(busdev);

    // Clear shadow to force redraw all screen in non-dma mode.
    memset(shadowBuffer, 0, maxScreenSize);
    if (firstInit) {
        max7456DrawScreenSlow();
        firstInit = false;
    }
}

Example #2

File: max7456.c Project: DTFUHF/betaflight

void max7456ReInit(void)
{
    uint8_t maxScreenRows;
    uint8_t srdata = 0;
    uint16_t x;
    static bool firstInit = true;

    ENABLE_MAX7456;

    switch(videoSignalCfg) {
        case VIDEO_SYSTEM_PAL:
            videoSignalReg = VIDEO_MODE_PAL | OSD_ENABLE;
            break;

        case VIDEO_SYSTEM_NTSC:
            videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
            break;

        case VIDEO_SYSTEM_AUTO:
            srdata = max7456Send(MAX7456ADD_STAT, 0x00);

            if (VIN_IS_NTSC(srdata)) {
                videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
            } else if (VIN_IS_PAL(srdata)) {
                videoSignalReg = VIDEO_MODE_PAL | OSD_ENABLE;
            } else {
                // No valid input signal, fallback to default (XXX NTSC for now)
                videoSignalReg = VIDEO_MODE_NTSC | OSD_ENABLE;
            }
            break;
    }

    if (videoSignalReg & VIDEO_MODE_PAL) { //PAL
        maxScreenSize = VIDEO_BUFFER_CHARS_PAL;
        maxScreenRows = VIDEO_LINES_PAL;
    } else {              // NTSC
        maxScreenSize = VIDEO_BUFFER_CHARS_NTSC;
        maxScreenRows = VIDEO_LINES_NTSC;
    }

    // Set all rows to same charactor black/white level.

    for(x = 0; x < maxScreenRows; x++) {
        max7456Send(MAX7456ADD_RB0 + x, BWBRIGHTNESS);
    }

    // Make sure the Max7456 is enabled
    max7456Send(MAX7456ADD_VM0, videoSignalReg);
    max7456Send(MAX7456ADD_HOS, hosRegValue);
    max7456Send(MAX7456ADD_VOS, vosRegValue);

    max7456Send(MAX7456ADD_DMM, CLEAR_DISPLAY);
    DISABLE_MAX7456;

    // Clear shadow to force redraw all screen in non-dma mode.

    memset(shadowBuffer, 0, maxScreenSize);
    if (firstInit)
    {
        max7456RefreshAll();
        firstInit = false;
    }
}