C++ (Cpp) pmu_backlight_init_curve Exemples

Exemple #1

Fichier : via-pmu-backlight.c Projet : ivucica/linux

void __init pmu_backlight_init()
{
	struct backlight_device *bd;
	char name[10];
	int level, autosave;

	/* Special case for the old PowerBook since I can't test on it */
	autosave =
		machine_is_compatible("AAPL,3400/2400") ||
		machine_is_compatible("AAPL,3500");

	if (!autosave &&
	    !pmac_has_backlight_type("pmu") &&
	    !machine_is_compatible("AAPL,PowerBook1998") &&
	    !machine_is_compatible("PowerBook1,1"))
		return;

	snprintf(name, sizeof(name), "pmubl");

	bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data);
	if (IS_ERR(bd)) {
		printk("pmubl: Backlight registration failed\n");
		goto error;
	}
	pmu_backlight_init_curve(0x7F, 0x46, 0x0E);

	level = pmu_backlight_data.max_brightness;

	if (autosave) {
		/* read autosaved value if available */
		struct adb_request req;
		pmu_request(&req, NULL, 2, 0xd9, 0);
		pmu_wait_complete(&req);

		level = pmu_backlight_curve_lookup(
				(req.reply[0] >> 4) *
				pmu_backlight_data.max_brightness / 15);
	}

	down(&bd->sem);
	bd->props->brightness = level;
	bd->props->power = FB_BLANK_UNBLANK;
	bd->props->update_status(bd);
	up(&bd->sem);

	mutex_lock(&pmac_backlight_mutex);
	if (!pmac_backlight)
		pmac_backlight = bd;
	mutex_unlock(&pmac_backlight_mutex);

	printk("pmubl: Backlight initialized (%s)\n", name);

	return;

error:
	return;
}

Exemple #2

Fichier : via-pmu-backlight.c Projet : Epirex/Chrono_Kernel-1

void __init pmu_backlight_init()
{
	struct backlight_properties props;
	struct backlight_device *bd;
	char name[10];
	int level, autosave;

	/* Special case for the old PowerBook since I can't test on it */
	autosave =
		of_machine_is_compatible("AAPL,3400/2400") ||
		of_machine_is_compatible("AAPL,3500");

	if (!autosave &&
	    !pmac_has_backlight_type("pmu") &&
	    !of_machine_is_compatible("AAPL,PowerBook1998") &&
	    !of_machine_is_compatible("PowerBook1,1"))
		return;

	snprintf(name, sizeof(name), "pmubl");

	memset(&props, 0, sizeof(struct backlight_properties));
	props.type = BACKLIGHT_PLATFORM;
	props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
	bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data,
				       &props);
	if (IS_ERR(bd)) {
		printk(KERN_ERR "PMU Backlight registration failed\n");
		return;
	}
	uses_pmu_bl = 1;
	pmu_backlight_init_curve(0x7F, 0x46, 0x0E);

	level = bd->props.max_brightness;

	if (autosave) {
		/* read autosaved value if available */
		struct adb_request req;
		pmu_request(&req, NULL, 2, 0xd9, 0);
		pmu_wait_complete(&req);

		level = pmu_backlight_curve_lookup(
				(req.reply[0] >> 4) *
				bd->props.max_brightness / 15);
	}

	bd->props.brightness = level;
	bd->props.power = FB_BLANK_UNBLANK;
	backlight_update_status(bd);

#ifdef CONFIG_DEBUG_PRINTK
	printk(KERN_INFO "PMU Backlight initialized (%s)\n", name);
#else
	;
#endif
}