diff options
Diffstat (limited to 'drivers/hwmon/hp_accel.c')
| -rw-r--r-- | drivers/hwmon/hp_accel.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c deleted file mode 100644 index 3d21fa2b97c..00000000000 --- a/drivers/hwmon/hp_accel.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * hp_accel.c - Interface between LIS3LV02DL driver and HP ACPI BIOS - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008 Eric Piel - * Copyright (C) 2008-2009 Pavel Machek - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/wait.h> -#include <linux/poll.h> -#include <linux/freezer.h> -#include <linux/uaccess.h> -#include <linux/leds.h> -#include <acpi/acpi_drivers.h> -#include <asm/atomic.h> -#include "lis3lv02d.h" - -#define DRIVER_NAME "lis3lv02d" -#define ACPI_MDPS_CLASS "accelerometer" - -/* Delayed LEDs infrastructure ------------------------------------ */ - -/* Special LED class that can defer work */ -struct delayed_led_classdev { - struct led_classdev led_classdev; - struct work_struct work; - enum led_brightness new_brightness; - - unsigned int led; /* For driver */ - void (*set_brightness)(struct delayed_led_classdev *data, enum led_brightness value); -}; - -static inline void delayed_set_status_worker(struct work_struct *work) -{ - struct delayed_led_classdev *data = - container_of(work, struct delayed_led_classdev, work); - - data->set_brightness(data, data->new_brightness); -} - -static inline void delayed_sysfs_set(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - struct delayed_led_classdev *data = container_of(led_cdev, - struct delayed_led_classdev, led_classdev); - data->new_brightness = brightness; - schedule_work(&data->work); -} - -/* HP-specific accelerometer driver ------------------------------------ */ - -/* For automatic insertion of the module */ -static struct acpi_device_id lis3lv02d_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); - - -/** - * lis3lv02d_acpi_init - ACPI _INI method: initialize the device. - * @lis3: pointer to the device struct - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_init(struct lis3lv02d *lis3) -{ - struct acpi_device *dev = lis3->bus_priv; - if (acpi_evaluate_object(dev->handle, METHOD_NAME__INI, - NULL, NULL) != AE_OK) - return -EINVAL; - - return 0; -} - -/** - * lis3lv02d_acpi_read - ACPI ALRD method: read a register - * @lis3: pointer to the device struct - * @reg: the register to read - * @ret: result of the operation - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret) -{ - struct acpi_device *dev = lis3->bus_priv; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - unsigned long long lret; - acpi_status status; - - arg0.integer.value = reg; - - status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret); - *ret = lret; - return (status != AE_OK) ? -EINVAL : 0; -} - -/** - * lis3lv02d_acpi_write - ACPI ALWR method: write to a register - * @lis3: pointer to the device struct - * @reg: the register to write to - * @val: the value to write - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_write(struct lis3lv02d *lis3, int reg, u8 val) -{ - struct acpi_device *dev = lis3->bus_priv; - unsigned long long ret; /* Not used when writting */ - union acpi_object in_obj[2]; - struct acpi_object_list args = { 2, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = reg; - in_obj[1].type = ACPI_TYPE_INTEGER; - in_obj[1].integer.value = val; - - if (acpi_evaluate_integer(dev->handle, "ALWR", &args, &ret) != AE_OK) - return -EINVAL; - - return 0; -} - -static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi) -{ - lis3_dev.ac = *((union axis_conversion *)dmi->driver_data); - pr_info("hardware type %s found\n", dmi->ident); - - return 1; -} - -/* Represents, for each axis seen by userspace, the corresponding hw axis (+1). - * If the value is negative, the opposite of the hw value is used. */ -#define DEFINE_CONV(name, x, y, z) \ - static union axis_conversion lis3lv02d_axis_##name = \ - { .as_array = { x, y, z } } -DEFINE_CONV(normal, 1, 2, 3); -DEFINE_CONV(y_inverted, 1, -2, 3); -DEFINE_CONV(x_inverted, -1, 2, 3); -DEFINE_CONV(z_inverted, 1, 2, -3); -DEFINE_CONV(xy_swap, 2, 1, 3); -DEFINE_CONV(xy_rotated_left, -2, 1, 3); -DEFINE_CONV(xy_rotated_left_usd, -2, 1, -3); -DEFINE_CONV(xy_swap_inverted, -2, -1, 3); -DEFINE_CONV(xy_rotated_right, 2, -1, 3); -DEFINE_CONV(xy_swap_yz_inverted, 2, -1, -3); - -#define AXIS_DMI_MATCH(_ident, _name, _axis) { \ - .ident = _ident, \ - .callback = lis3lv02d_dmi_matched, \ - .matches = { \ - DMI_MATCH(DMI_PRODUCT_NAME, _name) \ - }, \ - .driver_data = &lis3lv02d_axis_##_axis \ -} - -#define AXIS_DMI_MATCH2(_ident, _class1, _name1, \ - _class2, _name2, \ - _axis) { \ - .ident = _ident, \ - .callback = lis3lv02d_dmi_matched, \ - .matches = { \ - DMI_MATCH(DMI_##_class1, _name1), \ - DMI_MATCH(DMI_##_class2, _name2), \ - }, \ - .driver_data = &lis3lv02d_axis_##_axis \ -} -static struct dmi_system_id lis3lv02d_dmi_ids[] = { - /* product names are truncated to match all kinds of a same model */ - AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted), - AXIS_DMI_MATCH("NC84x0", "HP Compaq nc84", z_inverted), - AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted), - AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted), - AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted), - AXIS_DMI_MATCH("NC2710", "HP Compaq 2710", xy_swap), - AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted), - AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left), - AXIS_DMI_MATCH("HP2140", "HP 2140", xy_swap_inverted), - AXIS_DMI_MATCH("NC653x", "HP Compaq 653", xy_rotated_left_usd), - AXIS_DMI_MATCH("NC6730b", "HP Compaq 6730b", xy_rotated_left_usd), - AXIS_DMI_MATCH("NC6730s", "HP Compaq 6730s", xy_swap), - AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right), - AXIS_DMI_MATCH("NC6710x", "HP Compaq 6710", xy_swap_yz_inverted), - AXIS_DMI_MATCH("NC6715x", "HP Compaq 6715", y_inverted), - AXIS_DMI_MATCH("NC693xx", "HP EliteBook 693", xy_rotated_right), - AXIS_DMI_MATCH("NC693xx", "HP EliteBook 853", xy_swap), - /* Intel-based HP Pavilion dv5 */ - AXIS_DMI_MATCH2("HPDV5_I", - PRODUCT_NAME, "HP Pavilion dv5", - BOARD_NAME, "3603", - x_inverted), - /* AMD-based HP Pavilion dv5 */ - AXIS_DMI_MATCH2("HPDV5_A", - PRODUCT_NAME, "HP Pavilion dv5", - BOARD_NAME, "3600", - y_inverted), - AXIS_DMI_MATCH("DV7", "HP Pavilion dv7", x_inverted), - AXIS_DMI_MATCH("HP8710", "HP Compaq 8710", y_inverted), - AXIS_DMI_MATCH("HDX18", "HP HDX 18", x_inverted), - AXIS_DMI_MATCH("HPB432x", "HP ProBook 432", xy_rotated_left), - AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left), - AXIS_DMI_MATCH("HPB452x", "HP ProBook 452", y_inverted), - AXIS_DMI_MATCH("HPB522x", "HP ProBook 522", xy_swap), - AXIS_DMI_MATCH("HPB532x", "HP ProBook 532", y_inverted), - AXIS_DMI_MATCH("Mini510x", "HP Mini 510", xy_rotated_left_usd), - { NULL, } -/* Laptop models without axis info (yet): - * "NC6910" "HP Compaq 6910" - * "NC2400" "HP Compaq nc2400" - * "NX74x0" "HP Compaq nx74" - * "NX6325" "HP Compaq nx6325" - * "NC4400" "HP Compaq nc4400" - */ -}; - -static void hpled_set(struct delayed_led_classdev *led_cdev, enum led_brightness value) -{ - struct acpi_device *dev = lis3_dev.bus_priv; - unsigned long long ret; /* Not used when writing */ - union acpi_object in_obj[1]; - struct acpi_object_list args = { 1, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = !!value; - - acpi_evaluate_integer(dev->handle, "ALED", &args, &ret); -} - -static struct delayed_led_classdev hpled_led = { - .led_classdev = { - .name = "hp::hddprotect", - .default_trigger = "none", - .brightness_set = delayed_sysfs_set, - .flags = LED_CORE_SUSPENDRESUME, - }, - .set_brightness = hpled_set, -}; - -static acpi_status -lis3lv02d_get_resource(struct acpi_resource *resource, void *context) -{ - if (resource->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) { - struct acpi_resource_extended_irq *irq; - u32 *device_irq = context; - - irq = &resource->data.extended_irq; - *device_irq = irq->interrupts[0]; - } - - return AE_OK; -} - -static void lis3lv02d_enum_resources(struct acpi_device *device) -{ - acpi_status status; - - status = acpi_walk_resources(device->handle, METHOD_NAME__CRS, - lis3lv02d_get_resource, &lis3_dev.irq); - if (ACPI_FAILURE(status)) - printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n"); -} - -static int lis3lv02d_add(struct acpi_device *device) -{ - int ret; - - if (!device) - return -EINVAL; - - lis3_dev.bus_priv = device; - lis3_dev.init = lis3lv02d_acpi_init; - lis3_dev.read = lis3lv02d_acpi_read; - lis3_dev.write = lis3lv02d_acpi_write; - strcpy(acpi_device_name(device), DRIVER_NAME); - strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); - device->driver_data = &lis3_dev; - - /* obtain IRQ number of our device from ACPI */ - lis3lv02d_enum_resources(device); - - /* If possible use a "standard" axes order */ - if (lis3_dev.ac.x && lis3_dev.ac.y && lis3_dev.ac.z) { - pr_info("Using custom axes %d,%d,%d\n", - lis3_dev.ac.x, lis3_dev.ac.y, lis3_dev.ac.z); - } else if (dmi_check_system(lis3lv02d_dmi_ids) == 0) { - pr_info("laptop model unknown, using default axes configuration\n"); - lis3_dev.ac = lis3lv02d_axis_normal; - } - - /* call the core layer do its init */ - ret = lis3lv02d_init_device(&lis3_dev); - if (ret) - return ret; - - INIT_WORK(&hpled_led.work, delayed_set_status_worker); - ret = led_classdev_register(NULL, &hpled_led.led_classdev); - if (ret) { - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(&lis3_dev); - flush_work(&hpled_led.work); - return ret; - } - - return ret; -} - -static int lis3lv02d_remove(struct acpi_device *device, int type) -{ - if (!device) - return -EINVAL; - - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(&lis3_dev); - - led_classdev_unregister(&hpled_led.led_classdev); - flush_work(&hpled_led.work); - - return lis3lv02d_remove_fs(&lis3_dev); -} - - -#ifdef CONFIG_PM -static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state) -{ - /* make sure the device is off when we suspend */ - lis3lv02d_poweroff(&lis3_dev); - return 0; -} - -static int lis3lv02d_resume(struct acpi_device *device) -{ - lis3lv02d_poweron(&lis3_dev); - return 0; -} -#else -#define lis3lv02d_suspend NULL -#define lis3lv02d_resume NULL -#endif - -/* For the HP MDPS aka 3D Driveguard */ -static struct acpi_driver lis3lv02d_driver = { - .name = DRIVER_NAME, - .class = ACPI_MDPS_CLASS, - .ids = lis3lv02d_device_ids, - .ops = { - .add = lis3lv02d_add, - .remove = lis3lv02d_remove, - .suspend = lis3lv02d_suspend, - .resume = lis3lv02d_resume, - } -}; - -static int __init lis3lv02d_init_module(void) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - - ret = acpi_bus_register_driver(&lis3lv02d_driver); - if (ret < 0) - return ret; - - pr_info("driver loaded\n"); - - return 0; -} - -static void __exit lis3lv02d_exit_module(void) -{ - acpi_bus_unregister_driver(&lis3lv02d_driver); -} - -MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED."); -MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); -MODULE_LICENSE("GPL"); - -module_init(lis3lv02d_init_module); -module_exit(lis3lv02d_exit_module); - |