C++ (Cpp) ddc2_read_edid1 Beispiele

Beispiel #1

Datei: mode.cpp Projekt: luciang/haiku

/*!	Creates the initial mode list of the primary accelerant.
	It's called from intel_init_accelerant().
*/
status_t
create_mode_list(void)
{
	i2c_bus bus;
	bus.cookie = (void*)INTEL_I2C_IO_A;
	bus.set_signals = &set_i2c_signals;
	bus.get_signals = &get_i2c_signals;
	ddc2_init_timing(&bus);

	if (ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL) == B_OK) {
		edid_dump(&gInfo->edid_info);
		gInfo->has_edid = true;
	} else {
		TRACE(("intel_extreme: getting EDID failed!\n"));
	}

	// TODO: support lower modes via scaling and windowing
	if (gInfo->head_mode & HEAD_MODE_LVDS_PANEL
		&& ((gInfo->head_mode & HEAD_MODE_A_ANALOG) == 0)) {
		size_t size = (sizeof(display_mode) + B_PAGE_SIZE - 1)
			& ~(B_PAGE_SIZE - 1);

		display_mode *list;
		area_id area = create_area("intel extreme modes", (void **)&list,
			B_ANY_ADDRESS, size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);
		if (area < B_OK)
			return area;

		memcpy(list, &gInfo->lvds_panel_mode, sizeof(display_mode));

		gInfo->mode_list_area = area;
		gInfo->mode_list = list;
		gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
		gInfo->shared_info->mode_count = 1;
		return B_OK;
	}

	// Otherwise return the 'real' list of modes
	display_mode *list;
	uint32 count = 0;
	gInfo->mode_list_area = create_display_modes("intel extreme modes",
		gInfo->has_edid ? &gInfo->edid_info : NULL, NULL, 0, NULL, 0, NULL,
		&list, &count);
	if (gInfo->mode_list_area < B_OK)
		return gInfo->mode_list_area;

	gInfo->mode_list = list;
	gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
	gInfo->shared_info->mode_count = count;

	return B_OK;
}

Beispiel #2

Datei: savage_edid.cpp Projekt: mmanley/Antares

bool
Savage_GetEdidInfo(edid1_info& edidInfo)
{
	// Get the EDID info and return true if successful.

	SharedInfo& si = *gInfo.sharedInfo;

	uint32 DDCPort = 0;

    switch (si.chipType) {
	case S3_SAVAGE_3D:
	case S3_SAVAGE_MX:
	case S3_SUPERSAVAGE:
	case S3_SAVAGE2000:
		DDCPort = 0xAA;
		break;

	case S3_SAVAGE4:
	case S3_PROSAVAGE:
	case S3_TWISTER:
	case S3_PROSAVAGE_DDR:
		DDCPort = 0xB1;
		break;
    }

	i2c_bus bus;
	bus.cookie = (void*)DDCPort;
	bus.set_signals = &SetI2CSignals;
	bus.get_signals = &GetI2CSignals;
	ddc2_init_timing(&bus);

	uint8 tmp = ReadCrtcReg(DDCPort);
	WriteCrtcReg(DDCPort, tmp | 0x13);

	bool bResult = (ddc2_read_edid1(&bus, &edidInfo, NULL, NULL) == B_OK);
	WriteCrtcReg(DDCPort, tmp);

	return bResult;
}

Beispiel #3

/*!	Creates the initial mode list of the primary accelerant.
	It's called from intel_init_accelerant().
*/
status_t
create_mode_list(void)
{
	i2c_bus bus;
	bus.cookie = (void*)INTEL_I2C_IO_A;
	bus.set_signals = &set_i2c_signals;
	bus.get_signals = &get_i2c_signals;
	ddc2_init_timing(&bus);

	status_t error = ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL);
	if (error == B_OK) {
		edid_dump(&gInfo->edid_info);
		gInfo->has_edid = true;
	} else {
		TRACE(("intel_extreme: getting EDID on port A (analog) failed : %s. "
			"Trying on port C (lvds)\n", strerror(error)));
		bus.cookie = (void*)INTEL_I2C_IO_C;
		error = ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL);
		if (error == B_OK) {
			edid_dump(&gInfo->edid_info);
			gInfo->has_edid = true;
		} else {
			TRACE(("intel_extreme: getting EDID on port C failed : %s\n",
				strerror(error)));

			// We could not read any EDID info. Fallback to creating a list with
			// only the mode set up by the BIOS.
			// TODO: support lower modes via scaling and windowing
			if ((gInfo->head_mode & HEAD_MODE_LVDS_PANEL) != 0
					&& (gInfo->head_mode & HEAD_MODE_A_ANALOG) == 0) {
				size_t size = (sizeof(display_mode) + B_PAGE_SIZE - 1)
					& ~(B_PAGE_SIZE - 1);

				display_mode* list;
				area_id area = create_area("intel extreme modes",
					(void**)&list, B_ANY_ADDRESS, size, B_NO_LOCK,
					B_READ_AREA | B_WRITE_AREA);
				if (area < B_OK)
					return area;

				memcpy(list, &gInfo->lvds_panel_mode, sizeof(display_mode));

				gInfo->mode_list_area = area;
				gInfo->mode_list = list;
				gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
				gInfo->shared_info->mode_count = 1;
				return B_OK;
			}
		}
	}

	// Otherwise return the 'real' list of modes
	display_mode* list;
	uint32 count = 0;
	gInfo->mode_list_area = create_display_modes("intel extreme modes",
		gInfo->has_edid ? &gInfo->edid_info : NULL, NULL, 0, NULL, 0, NULL,
		&list, &count);
	if (gInfo->mode_list_area < B_OK)
		return gInfo->mode_list_area;

	gInfo->mode_list = list;
	gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
	gInfo->shared_info->mode_count = count;

	return B_OK;
}