// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HP WMI hotkeys
*
* Copyright (C) 2008 Red Hat <mjg@redhat.com>
* Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
*
* Portions based on wistron_btns.c:
* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/rfkill.h>
#include <linux/string.h>
MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
enum hp_wmi_radio {
HPWMI_WIFI = 0x0,
HPWMI_BLUETOOTH = 0x1,
HPWMI_WWAN = 0x2,
HPWMI_GPS = 0x3,
};
enum hp_wmi_event_ids {
HPWMI_DOCK_EVENT = 0x01,
HPWMI_PARK_HDD = 0x02,
HPWMI_SMART_ADAPTER = 0x03,
HPWMI_BEZEL_BUTTON = 0x04,
HPWMI_WIRELESS = 0x05,
HPWMI_CPU_BATTERY_THROTTLE = 0x06,
HPWMI_LOCK_SWITCH = 0x07,
HPWMI_LID_SWITCH = 0x08,
HPWMI_SCREEN_ROTATION = 0x09,
HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
HPWMI_PROXIMITY_SENSOR = 0x0C,
HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
HPWMI_PEAKSHIFT_PERIOD = 0x0F,
HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
};
struct bios_args {
u32 signature;
u32 command;
u32 commandtype;
u32 datasize;
u8 data[128];
};
enum hp_wmi_commandtype {
HPWMI_DISPLAY_QUERY = 0x01,
HPWMI_HDDTEMP_QUERY = 0x02,
HPWMI_ALS_QUERY = 0x03,
HPWMI_HARDWARE_QUERY = 0x04,
HPWMI_WIRELESS_QUERY = 0x05,
HPWMI_BATTERY_QUERY = 0x07,
HPWMI_BIOS_QUERY = 0x09,
HPWMI_FEATURE_QUERY = 0x0b,
HPWMI_HOTKEY_QUERY = 0x0c,
HPWMI_FEATURE2_QUERY = 0x0d,
HPWMI_WIRELESS2_QUERY = 0x1b,
HPWMI_POSTCODEERROR_QUERY = 0x2a,
HPWMI_THERMAL_POLICY_QUERY = 0x4c,
};
enum hp_wmi_command {
HPWMI_READ = 0x01,
HPWMI_WRITE = 0x02,
HPWMI_ODM = 0x03,
};
enum hp_wmi_hardware_mask {
HPWMI_DOCK_MASK = 0x01,
HPWMI_TABLET_MASK = 0x04,
};
struct bios_return {
u32 sigpass;
u32 return_code;
};
enum hp_return_value {
HPWMI_RET_WRONG_SIGNATURE = 0x02,
HPWMI_RET_UNKNOWN_COMMAND = 0x03,
HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
HPWMI_RET_INVALID_PARAMETERS = 0x05,
};
enum hp_wireless2_bits {
HPWMI_POWER_STATE = 0x01,
HPWMI_POWER_SOFT = 0x02,
HPWMI_POWER_BIOS = 0x04,
HPWMI_POWER_HARD = 0x08,
HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD,
};
#define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
struct bios_rfkill2_device_state {
u8 radio_type;
u8 bus_type;
u16 vendor_id;
u16 product_id;
u16 subsys_vendor_id;
u16 subsys_product_id;
u8 rfkill_id;
u8 power;
u8 unknown[4];
};
/* 7 devices fit into the 128 byte buffer */
#define HPWMI_MAX_RFKILL2_DEVICES 7
struct bios_rfkill2_state {
u8 unknown[7];
u8 count;
u8 pad[8];
struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
};
static const struct key_entry hp_wmi_keymap[] = {
{ KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
{ KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, 0x20e6, { KEY_PROG1 } },
{ KE_KEY, 0x20e8, { KEY_MEDIA } },
{ KE_KEY, 0x2142, { KEY_MEDIA } },
{ KE_KEY, 0x213b, { KEY_INFO } },
{ KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
{ KE_KEY, 0x216a, { KEY_SETUP } },
{ KE_KEY, 0x231b, { KEY_HELP } },
{ KE_END, 0 }
};
static struct input_dev *hp_wmi_input_dev;
static struct platform_device *hp_wmi_platform_dev;
static struct rfkill *wifi_rfkill;
static struct rfkill *bluetooth_rfkill;
static struct rfkill *wwan_rfkill;
struct rfki