| /* |
| * Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/acpi.h> |
| |
| MODULE_LICENSE("GPL"); |
| |
| static int smartconnect_acpi_init(struct acpi_device *acpi) |
| { |
| unsigned long long value; |
| acpi_status status; |
| |
| status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value); |
| if (ACPI_FAILURE(status)) |
| return -EINVAL; |
| |
| if (value & 0x1) { |
| dev_info(&acpi->dev, "Disabling Intel Smart Connect\n"); |
| status = acpi_execute_simple_method(acpi->handle, "SAOS", 0); |
| } |
| |
| return 0; |
| } |
| |
| static const struct acpi_device_id smartconnect_ids[] = { |
| {"INT33A0", 0}, |
| {"", 0} |
| }; |
| |
| static struct acpi_driver smartconnect_driver = { |
| .owner = THIS_MODULE, |
| .name = "intel_smart_connect", |
| .class = "intel_smart_connect", |
| .ids = smartconnect_ids, |
| .ops = { |
| .add = smartconnect_acpi_init, |
| }, |
| }; |
| |
| module_acpi_driver(smartconnect_driver); |
| |
| MODULE_DEVICE_TABLE(acpi, smartconnect_ids); |
