diff options
Diffstat (limited to 'drivers/platform/x86/hp_accel.c')
| -rw-r--r-- | drivers/platform/x86/hp_accel.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c deleted file mode 100644 index e9f852f7c27f..000000000000 --- a/drivers/platform/x86/hp_accel.c +++ /dev/null @@ -1,387 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * 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 - */ - -#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 <linux/atomic.h> -#include <linux/acpi.h> -#include <linux/i8042.h> -#include <linux/serio.h> -#include "../../misc/lis3lv02d/lis3lv02d.h" - -/* 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 ------------------------------------ */ - -/* e0 25, e0 26, e0 27, e0 28 are scan codes that the accelerometer with acpi id - * HPQ6000 sends through the keyboard bus */ -#define ACCEL_1 0x25 -#define ACCEL_2 0x26 -#define ACCEL_3 0x27 -#define ACCEL_4 0x28 - -/* For automatic insertion of the module */ -static const struct acpi_device_id lis3lv02d_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"HPQ6000", 0}, /* HP Mobile Data Protection System PNP */ - {"HPQ6007", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); - -/** - * lis3lv02d_acpi_init - initialize the device for ACPI - * @lis3: pointer to the device struct - * - * Returns 0 on success. - */ -static int lis3lv02d_acpi_init(struct lis3lv02d *lis3) -{ - 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. - */ -static 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); - if (ACPI_FAILURE(status)) - return -EINVAL; - *ret = lret; - return 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. - */ -static 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(x_inverted_usd, -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 const 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), - AXIS_DMI_MATCH("NC854xx", "HP EliteBook 854", y_inverted), - AXIS_DMI_MATCH("NC273xx", "HP EliteBook 273", y_inverted), - /* 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("HPB440G3", "HP ProBook 440 G3", x_inverted_usd), - AXIS_DMI_MATCH("HPB440G4", "HP ProBook 440 G4", x_inverted), - AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left), - AXIS_DMI_MATCH("HPB450G0", "HP ProBook 450 G0", x_inverted), - 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("HPB655x", "HP ProBook 655", xy_swap_inverted), - AXIS_DMI_MATCH("Mini510x", "HP Mini 510", xy_rotated_left_usd), - AXIS_DMI_MATCH("HPB63xx", "HP ProBook 63", xy_swap), - AXIS_DMI_MATCH("HPB64xx", "HP ProBook 64", xy_swap), - AXIS_DMI_MATCH("HPB64xx", "HP EliteBook 84", xy_swap), - AXIS_DMI_MATCH("HPB65xx", "HP ProBook 65", x_inverted), - AXIS_DMI_MATCH("HPZBook15", "HP ZBook 15", x_inverted), - AXIS_DMI_MATCH("HPZBook17G5", "HP ZBook 17 G5", x_inverted), - AXIS_DMI_MATCH("HPZBook17", "HP ZBook 17", xy_swap_yz_inverted), - { 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 bool hp_accel_i8042_filter(unsigned char data, unsigned char str, - struct serio *port) -{ - static bool extended; - - if (str & I8042_STR_AUXDATA) - return false; - - if (data == 0xe0) { - extended = true; - return true; - } else if (unlikely(extended)) { - extended = false; - - switch (data) { - case ACCEL_1: - case ACCEL_2: - case ACCEL_3: - case ACCEL_4: - return true; - default: - serio_interrupt(port, 0xe0, 0); - return false; - } - } - - return false; -} - -static int lis3lv02d_probe(struct platform_device *device) -{ - int ret; - - lis3_dev.bus_priv = ACPI_COMPANION(&device->dev); - lis3_dev.init = lis3lv02d_acpi_init; - lis3_dev.read = lis3lv02d_acpi_read; - lis3_dev.write = lis3lv02d_acpi_write; - - /* obtain IRQ number of our device from ACPI */ - ret = platform_get_irq_optional(device, 0); - if (ret > 0) - lis3_dev.irq = ret; - - /* 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; - - /* filter to remove HPQ6000 accelerometer data - * from keyboard bus stream */ - if (strstr(dev_name(&device->dev), "HPQ6000")) - i8042_install_filter(hp_accel_i8042_filter); - - INIT_WORK(&hpled_led.work, delayed_set_status_worker); - ret = led_classdev_register(NULL, &hpled_led.led_classdev); - if (ret) { - i8042_remove_filter(hp_accel_i8042_filter); - lis3lv02d_joystick_disable(&lis3_dev); - lis3lv02d_poweroff(&lis3_dev); - flush_work(&hpled_led.work); - lis3lv02d_remove_fs(&lis3_dev); - return ret; - } - - return ret; -} - -static int lis3lv02d_remove(struct platform_device *device) -{ - i8042_remove_filter(hp_accel_i8042_filter); - lis3lv02d_joystick_disable(&lis3_dev); - lis3lv02d_poweroff(&lis3_dev); - - led_classdev_unregister(&hpled_led.led_classdev); - flush_work(&hpled_led.work); - - lis3lv02d_remove_fs(&lis3_dev); - return 0; -} - -static int __maybe_unused lis3lv02d_suspend(struct device *dev) -{ - /* make sure the device is off when we suspend */ - lis3lv02d_poweroff(&lis3_dev); - return 0; -} - -static int __maybe_unused lis3lv02d_resume(struct device *dev) -{ - lis3lv02d_poweron(&lis3_dev); - return 0; -} - -static SIMPLE_DEV_PM_OPS(hp_accel_pm, lis3lv02d_suspend, lis3lv02d_resume); - -/* For the HP MDPS aka 3D Driveguard */ -static struct platform_driver lis3lv02d_driver = { - .probe = lis3lv02d_probe, - .remove = lis3lv02d_remove, - .driver = { - .name = "hp_accel", - .pm = &hp_accel_pm, - .acpi_match_table = lis3lv02d_device_ids, - }, -}; -module_platform_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"); |