C++ (Cpp) intel_button_array_input_setupの例

コード例 #1

ファイル: intel-hid.c プロジェクト: asmalldev/linux

static int intel_hid_probe(struct platform_device *device)
{
	acpi_handle handle = ACPI_HANDLE(&device->dev);
	unsigned long long event_cap, mode;
	struct intel_hid_priv *priv;
	acpi_status status;
	int err;

	status = acpi_evaluate_integer(handle, "HDMM", NULL, &mode);
	if (ACPI_FAILURE(status)) {
		dev_warn(&device->dev, "failed to read mode\n");
		return -ENODEV;
	}

	if (mode != 0) {
		/*
		 * This driver only implements "simple" mode.  There appear
		 * to be no other modes, but we should be paranoid and check
		 * for compatibility.
		 */
		dev_info(&device->dev, "platform is not in simple mode\n");
		return -ENODEV;
	}

	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;
	dev_set_drvdata(&device->dev, priv);

	err = intel_hid_input_setup(device);
	if (err) {
		pr_err("Failed to setup Intel HID hotkeys\n");
		return err;
	}

	/* Setup 5 button array */
	status = acpi_evaluate_integer(handle, "HEBC", NULL, &event_cap);
	if (ACPI_SUCCESS(status) && (event_cap & 0x20000)) {
		dev_info(&device->dev, "platform supports 5 button array\n");
		err = intel_button_array_input_setup(device);
		if (err)
			pr_err("Failed to setup Intel 5 button array hotkeys\n");
	}

	status = acpi_install_notify_handler(handle,
					     ACPI_DEVICE_NOTIFY,
					     notify_handler,
					     device);
	if (ACPI_FAILURE(status))
		return -EBUSY;

	err = intel_hid_set_enable(&device->dev, true);
	if (err)
		goto err_remove_notify;

	if (priv->array) {
		intel_button_array_enable(&device->dev, true);

		/* Call button load method to enable HID power button */
		status = acpi_evaluate_object(handle, "BTNL", NULL, NULL);
		if (ACPI_FAILURE(status))
			dev_warn(&device->dev,
				 "failed to enable HID power button\n");
	}

	return 0;

err_remove_notify:
	acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);

	return err;
}

コード例 #2

ファイル: intel-hid.c プロジェクト: Lyude/linux

static int intel_hid_probe(struct platform_device *device)
{
	acpi_handle handle = ACPI_HANDLE(&device->dev);
	unsigned long long mode;
	struct intel_hid_priv *priv;
	acpi_status status;
	int err;

	intel_hid_init_dsm(handle);

	if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_HDMM_FN, &mode)) {
		dev_warn(&device->dev, "failed to read mode\n");
		return -ENODEV;
	}

	if (mode != 0) {
		/*
		 * This driver only implements "simple" mode.  There appear
		 * to be no other modes, but we should be paranoid and check
		 * for compatibility.
		 */
		dev_info(&device->dev, "platform is not in simple mode\n");
		return -ENODEV;
	}

	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;
	dev_set_drvdata(&device->dev, priv);

	err = intel_hid_input_setup(device);
	if (err) {
		pr_err("Failed to setup Intel HID hotkeys\n");
		return err;
	}

	/* Setup 5 button array */
	if (button_array_present(device)) {
		dev_info(&device->dev, "platform supports 5 button array\n");
		err = intel_button_array_input_setup(device);
		if (err)
			pr_err("Failed to setup Intel 5 button array hotkeys\n");
	}

	status = acpi_install_notify_handler(handle,
					     ACPI_DEVICE_NOTIFY,
					     notify_handler,
					     device);
	if (ACPI_FAILURE(status))
		return -EBUSY;

	err = intel_hid_set_enable(&device->dev, true);
	if (err)
		goto err_remove_notify;

	if (priv->array) {
		unsigned long long dummy;

		intel_button_array_enable(&device->dev, true);

		/* Call button load method to enable HID power button */
		if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_BTNL_FN,
					       &dummy)) {
			dev_warn(&device->dev,
				 "failed to enable HID power button\n");
		}
	}

	device_init_wakeup(&device->dev, true);
	return 0;

err_remove_notify:
	acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);

	return err;
}