Attachment #187601 for bug #207086




	return (0);
}

static UINT32 vo_brightness_level = 0;

static int
vo_get_bqc(ACPI_HANDLE handle, UINT32 *level)
{
	static int has_bqc = -1;
	int retval = 0;

	switch (has_bqc) {
		case 1:
			retval = ACPI_FAILURE(acpi_GetInteger(handle,
						"_BQC", &vo_brightness_level));
			break;
		case -1:
			has_bqc = ACPI_SUCCESS(acpi_GetInteger(handle,
							"_BQC", &vo_brightness_level));
			break;
		case 0:
		default:
			break;
	}
	if (retval == 0 && level != NULL) {
		*level = vo_brightness_level;
	}
	return retval;
}

static int
vo_get_brightness(ACPI_HANDLE handle)
{
	UINT32 level;
	/*ACPI_STATUS status;*/

	ACPI_SERIAL_ASSERT(video_output);
	if (vo_get_bqc(handle, &level) != 0) {
	if (ACPI_FAILURE(status)) {
		printf("can't evaluate %s._BQC - %s\n", acpi_name(handle),
		    /*AcpiFormatException(status)*/"");
		return (-1);
	}
	if (level > 100)

	ACPI_STATUS status;

	ACPI_SERIAL_ASSERT(video_output);
	vo_brightness_level = level;
	status = acpi_SetInteger(handle, "_BCM", level);
	if (ACPI_FAILURE(status))
		printf("can't evaluate %s._BCM - %s\n",

Return to bug 207086

Lines 1012-1028 out: Link Here

(-)b/sys/dev/acpica/acpi_video.c (-4 / +31 lines)
1012	return (0);	1012	return (0);
1013	}	1013	}
1014		1014
		1015	static UINT32 vo_brightness_level = 0;
		1016
		1017	static int
		1018	vo_get_bqc(ACPI_HANDLE handle, UINT32 *level)
		1019	{
		1020	static int has_bqc = -1;
		1021	int retval = 0;
		1022
		1023	switch (has_bqc) {
		1024	case 1:
		1025	retval = ACPI_FAILURE(acpi_GetInteger(handle,
		1026	"_BQC", &vo_brightness_level));
		1027	break;
		1028	case -1:
		1029	has_bqc = ACPI_SUCCESS(acpi_GetInteger(handle,
		1030	"_BQC", &vo_brightness_level));
		1031	break;
		1032	case 0:
		1033	default:
		1034	break;
		1035	}
		1036	if (retval == 0 && level != NULL) {
		1037	*level = vo_brightness_level;
		1038	}
		1039	return retval;
		1040	}
		1041
1015	static int	1042	static int
1016	vo_get_brightness(ACPI_HANDLE handle)	1043	vo_get_brightness(ACPI_HANDLE handle)
1017	{	1044	{
1018	UINT32 level;	1045	UINT32 level;
1019	ACPI_STATUS status;	1046	/ACPI_STATUS status;/
1020		1047
1021	ACPI_SERIAL_ASSERT(video_output);	1048	ACPI_SERIAL_ASSERT(video_output);
1022	status = acpi_GetInteger(handle, "_BQC", &level);	1049	if (vo_get_bqc(handle, &level) != 0) {
1023	if (ACPI_FAILURE(status)) {
1024	printf("can't evaluate %s._BQC - %s\n", acpi_name(handle),	1050	printf("can't evaluate %s._BQC - %s\n", acpi_name(handle),
1025	AcpiFormatException(status));	1051	/AcpiFormatException(status)/"");
1026	return (-1);	1052	return (-1);
1027	}	1053	}
1028	if (level > 100)	1054	if (level > 100)
Lines 1037-1042 vo_set_brightness(ACPI_HANDLE handle, int level) Link Here
1037	ACPI_STATUS status;	1063	ACPI_STATUS status;
1038		1064
1039	ACPI_SERIAL_ASSERT(video_output);	1065	ACPI_SERIAL_ASSERT(video_output);
		1066	vo_brightness_level = level;
1040	status = acpi_SetInteger(handle, "_BCM", level);	1067	status = acpi_SetInteger(handle, "_BCM", level);
1041	if (ACPI_FAILURE(status))	1068	if (ACPI_FAILURE(status))
1042	printf("can't evaluate %s._BCM - %s\n",	1069	printf("can't evaluate %s._BCM - %s\n",