C++ (Cpp) DCR_READ示例

示例#1

文件： timing.c 项目： notooth/reconos

// get system timer value
timing_t gettime(  )
{

#ifdef USE_ECOS
#ifdef USE_DCR_TIMEBASE
    return DCR_READ(XPAR_DCR_TIMEBASE_0_DCR_BASEADDR, 1);
#else
    return *tbr;
#endif // USE_DCR_TIMEBASE
#else
    return clock(  );
#endif
}

示例#2

文件： smfb.c 项目： alenichev/openbsd-kernel

void
smfb_burner(void *v, uint on, uint flg)
{
	struct smfb_softc *sc = (struct smfb_softc *)v;
	struct smfb *fb = sc->sc_fb;

	if (fb->is5xx) {
		if (on) {
			/*
			 * Wait for a few cycles after restoring power,
			 * to prevent white flickering.
			 */
			DCR_WRITE(fb, DCR_PANEL_DISPLAY_CONTROL,
			    DCR_READ(fb, DCR_PANEL_DISPLAY_CONTROL) | PDC_VDD);
			smfb_wait_panel_vsync(fb, 4);
			DCR_WRITE(fb, DCR_PANEL_DISPLAY_CONTROL,
			    DCR_READ(fb, DCR_PANEL_DISPLAY_CONTROL) | PDC_DATA);
			smfb_wait_panel_vsync(fb, 4);
			DCR_WRITE(fb, DCR_PANEL_DISPLAY_CONTROL,
			    DCR_READ(fb, DCR_PANEL_DISPLAY_CONTROL) |
			    (PDC_BIAS | PDC_EN));
		} else
			DCR_WRITE(fb, DCR_PANEL_DISPLAY_CONTROL,
			    DCR_READ(fb, DCR_PANEL_DISPLAY_CONTROL) &
			    ~(PDC_EN | PDC_BIAS | PDC_DATA | PDC_VDD));
	} else {
		if (on) {
			smfb_vgats_write(fb, 0x31,
			    smfb_vgats_read(fb, 0x31) | 0x01);
		} else {
			smfb_vgats_write(fb, 0x21,
			    smfb_vgats_read(fb, 0x21) | 0x30);
			smfb_vgats_write(fb, 0x31,
			    smfb_vgats_read(fb, 0x31) & ~0x01);
		}
	}
}