C++ (Cpp) cr_backlight_set_intensityの例

コード例 #1

ファイル: cr_bllcd.c プロジェクト: 7799/linux

static int cr_backlight_probe(struct platform_device *pdev)
{
	struct backlight_properties props;
	struct backlight_device *bdp;
	struct lcd_device *ldp;
	struct cr_panel *crp;
	u8 dev_en;

	lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
					CRVML_DEVICE_LPC, NULL);
	if (!lpc_dev) {
		pr_err("INTEL CARILLO RANCH LPC not found.\n");
		return -ENODEV;
	}

	pci_read_config_byte(lpc_dev, CRVML_REG_GPIOEN, &dev_en);
	if (!(dev_en & CRVML_GPIOEN_BIT)) {
		pr_err("Carillo Ranch GPIO device was not enabled.\n");
		pci_dev_put(lpc_dev);
		return -ENODEV;
	}

	memset(&props, 0, sizeof(struct backlight_properties));
	props.type = BACKLIGHT_RAW;
	bdp = devm_backlight_device_register(&pdev->dev, "cr-backlight",
					&pdev->dev, NULL, &cr_backlight_ops,
					&props);
	if (IS_ERR(bdp)) {
		pci_dev_put(lpc_dev);
		return PTR_ERR(bdp);
	}

	ldp = devm_lcd_device_register(&pdev->dev, "cr-lcd", &pdev->dev, NULL,
					&cr_lcd_ops);
	if (IS_ERR(ldp)) {
		pci_dev_put(lpc_dev);
		return PTR_ERR(ldp);
	}

	pci_read_config_dword(lpc_dev, CRVML_REG_GPIOBAR,
			      &gpio_bar);
	gpio_bar &= ~0x3F;

	crp = devm_kzalloc(&pdev->dev, sizeof(*crp), GFP_KERNEL);
	if (!crp) {
		pci_dev_put(lpc_dev);
		return -ENOMEM;
	}

	crp->cr_backlight_device = bdp;
	crp->cr_lcd_device = ldp;
	crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK;
	crp->cr_backlight_device->props.brightness = 0;
	cr_backlight_set_intensity(crp->cr_backlight_device);
	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_UNBLANK);

	platform_set_drvdata(pdev, crp);

	return 0;
}

コード例 #2

ファイル: cr_bllcd.c プロジェクト: Mr-Aloof/wl500g

static int cr_backlight_probe(struct platform_device *pdev)
{
	struct cr_panel *crp;
	u8 dev_en;

	crp = kzalloc(sizeof(*crp), GFP_KERNEL);
	if (crp == NULL)
		return -ENOMEM;

	lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
					CRVML_DEVICE_LPC, NULL);
	if (!lpc_dev) {
		printk("INTEL CARILLO RANCH LPC not found.\n");
		return -ENODEV;
	}

	pci_read_config_byte(lpc_dev, CRVML_REG_GPIOEN, &dev_en);
	if (!(dev_en & CRVML_GPIOEN_BIT)) {
		printk(KERN_ERR
		       "Carillo Ranch GPIO device was not enabled.\n");
		pci_dev_put(lpc_dev);
		return -ENODEV;
	}

	crp->cr_backlight_device = backlight_device_register("cr-backlight",
							     &pdev->dev, NULL,
							     &cr_backlight_ops);
	if (IS_ERR(crp->cr_backlight_device)) {
		pci_dev_put(lpc_dev);
		return PTR_ERR(crp->cr_backlight_device);
	}

	crp->cr_lcd_device = lcd_device_register("cr-lcd",
							&pdev->dev, NULL
							&cr_lcd_ops);

	if (IS_ERR(crp->cr_lcd_device)) {
		pci_dev_put(lpc_dev);
		return PTR_ERR(crp->cr_backlight_device);
	}

	pci_read_config_dword(lpc_dev, CRVML_REG_GPIOBAR,
			      &gpio_bar);
	gpio_bar &= ~0x3F;

	crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK;
	crp->cr_backlight_device->props.brightness = 0;
	crp->cr_backlight_device->props.max_brightness = 0;
	cr_backlight_set_intensity(crp->cr_backlight_device);

	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_UNBLANK);

	platform_set_drvdata(pdev, crp);

	return 0;
}

コード例 #3

ファイル: cr_bllcd.c プロジェクト: 7799/linux

static int cr_backlight_remove(struct platform_device *pdev)
{
	struct cr_panel *crp = platform_get_drvdata(pdev);
	crp->cr_backlight_device->props.power = FB_BLANK_POWERDOWN;
	crp->cr_backlight_device->props.brightness = 0;
	crp->cr_backlight_device->props.max_brightness = 0;
	cr_backlight_set_intensity(crp->cr_backlight_device);
	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_POWERDOWN);
	pci_dev_put(lpc_dev);

	return 0;
}