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1121 lines
26 KiB
1121 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* HP WMI hotkeys |
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* |
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* Copyright (C) 2008 Red Hat <[email protected]> |
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* Copyright (C) 2010, 2011 Anssi Hannula <[email protected]> |
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* |
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* Portions based on wistron_btns.c: |
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* Copyright (C) 2005 Miloslav Trmac <[email protected]> |
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* Copyright (C) 2005 Bernhard Rosenkraenzer <[email protected]> |
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* Copyright (C) 2005 Dmitry Torokhov <[email protected]> |
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*/ |
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|
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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|
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/types.h> |
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#include <linux/input.h> |
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#include <linux/input/sparse-keymap.h> |
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#include <linux/platform_device.h> |
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#include <linux/platform_profile.h> |
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#include <linux/acpi.h> |
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#include <linux/rfkill.h> |
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#include <linux/string.h> |
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|
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MODULE_AUTHOR("Matthew Garrett <[email protected]>"); |
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MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); |
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MODULE_LICENSE("GPL"); |
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|
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MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); |
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MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); |
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|
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static int enable_tablet_mode_sw = -1; |
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module_param(enable_tablet_mode_sw, int, 0444); |
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MODULE_PARM_DESC(enable_tablet_mode_sw, "Enable SW_TABLET_MODE reporting (-1=auto, 0=no, 1=yes)"); |
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|
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#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" |
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#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" |
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|
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enum hp_wmi_radio { |
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HPWMI_WIFI = 0x0, |
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HPWMI_BLUETOOTH = 0x1, |
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HPWMI_WWAN = 0x2, |
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HPWMI_GPS = 0x3, |
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}; |
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|
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enum hp_wmi_event_ids { |
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HPWMI_DOCK_EVENT = 0x01, |
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HPWMI_PARK_HDD = 0x02, |
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HPWMI_SMART_ADAPTER = 0x03, |
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HPWMI_BEZEL_BUTTON = 0x04, |
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HPWMI_WIRELESS = 0x05, |
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HPWMI_CPU_BATTERY_THROTTLE = 0x06, |
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HPWMI_LOCK_SWITCH = 0x07, |
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HPWMI_LID_SWITCH = 0x08, |
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HPWMI_SCREEN_ROTATION = 0x09, |
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HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, |
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HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, |
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HPWMI_PROXIMITY_SENSOR = 0x0C, |
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HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, |
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HPWMI_PEAKSHIFT_PERIOD = 0x0F, |
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HPWMI_BATTERY_CHARGE_PERIOD = 0x10, |
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}; |
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|
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struct bios_args { |
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u32 signature; |
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u32 command; |
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u32 commandtype; |
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u32 datasize; |
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u8 data[128]; |
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}; |
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|
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enum hp_wmi_commandtype { |
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HPWMI_DISPLAY_QUERY = 0x01, |
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HPWMI_HDDTEMP_QUERY = 0x02, |
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HPWMI_ALS_QUERY = 0x03, |
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HPWMI_HARDWARE_QUERY = 0x04, |
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HPWMI_WIRELESS_QUERY = 0x05, |
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HPWMI_BATTERY_QUERY = 0x07, |
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HPWMI_BIOS_QUERY = 0x09, |
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HPWMI_FEATURE_QUERY = 0x0b, |
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HPWMI_HOTKEY_QUERY = 0x0c, |
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HPWMI_FEATURE2_QUERY = 0x0d, |
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HPWMI_WIRELESS2_QUERY = 0x1b, |
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HPWMI_POSTCODEERROR_QUERY = 0x2a, |
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HPWMI_THERMAL_PROFILE_QUERY = 0x4c, |
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}; |
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|
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enum hp_wmi_command { |
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HPWMI_READ = 0x01, |
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HPWMI_WRITE = 0x02, |
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HPWMI_ODM = 0x03, |
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}; |
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|
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enum hp_wmi_hardware_mask { |
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HPWMI_DOCK_MASK = 0x01, |
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HPWMI_TABLET_MASK = 0x04, |
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}; |
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struct bios_return { |
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u32 sigpass; |
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u32 return_code; |
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}; |
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|
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enum hp_return_value { |
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HPWMI_RET_WRONG_SIGNATURE = 0x02, |
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HPWMI_RET_UNKNOWN_COMMAND = 0x03, |
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HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, |
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HPWMI_RET_INVALID_PARAMETERS = 0x05, |
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}; |
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|
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enum hp_wireless2_bits { |
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HPWMI_POWER_STATE = 0x01, |
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HPWMI_POWER_SOFT = 0x02, |
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HPWMI_POWER_BIOS = 0x04, |
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HPWMI_POWER_HARD = 0x08, |
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HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD, |
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}; |
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enum hp_thermal_profile { |
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HP_THERMAL_PROFILE_PERFORMANCE = 0x00, |
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HP_THERMAL_PROFILE_DEFAULT = 0x01, |
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HP_THERMAL_PROFILE_COOL = 0x02 |
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}; |
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|
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#define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW) |
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#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) |
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|
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struct bios_rfkill2_device_state { |
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u8 radio_type; |
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u8 bus_type; |
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u16 vendor_id; |
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u16 product_id; |
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u16 subsys_vendor_id; |
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u16 subsys_product_id; |
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u8 rfkill_id; |
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u8 power; |
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u8 unknown[4]; |
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}; |
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|
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/* 7 devices fit into the 128 byte buffer */ |
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#define HPWMI_MAX_RFKILL2_DEVICES 7 |
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|
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struct bios_rfkill2_state { |
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u8 unknown[7]; |
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u8 count; |
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u8 pad[8]; |
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struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; |
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}; |
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|
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static const struct key_entry hp_wmi_keymap[] = { |
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{ KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, |
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{ KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, |
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{ KE_KEY, 0x20e6, { KEY_PROG1 } }, |
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{ KE_KEY, 0x20e8, { KEY_MEDIA } }, |
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{ KE_KEY, 0x2142, { KEY_MEDIA } }, |
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{ KE_KEY, 0x213b, { KEY_INFO } }, |
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{ KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } }, |
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{ KE_KEY, 0x216a, { KEY_SETUP } }, |
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{ KE_KEY, 0x231b, { KEY_HELP } }, |
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{ KE_END, 0 } |
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}; |
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static struct input_dev *hp_wmi_input_dev; |
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static struct platform_device *hp_wmi_platform_dev; |
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static struct platform_profile_handler platform_profile_handler; |
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static bool platform_profile_support; |
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|
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static struct rfkill *wifi_rfkill; |
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static struct rfkill *bluetooth_rfkill; |
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static struct rfkill *wwan_rfkill; |
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struct rfkill2_device { |
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u8 id; |
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int num; |
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struct rfkill *rfkill; |
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}; |
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static int rfkill2_count; |
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static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; |
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/* map output size to the corresponding WMI method id */ |
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static inline int encode_outsize_for_pvsz(int outsize) |
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{ |
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if (outsize > 4096) |
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return -EINVAL; |
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if (outsize > 1024) |
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return 5; |
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if (outsize > 128) |
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return 4; |
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if (outsize > 4) |
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return 3; |
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if (outsize > 0) |
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return 2; |
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return 1; |
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} |
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/* |
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* hp_wmi_perform_query |
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* |
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* query: The commandtype (enum hp_wmi_commandtype) |
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* write: The command (enum hp_wmi_command) |
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* buffer: Buffer used as input and/or output |
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* insize: Size of input buffer |
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* outsize: Size of output buffer |
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* |
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* returns zero on success |
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* an HP WMI query specific error code (which is positive) |
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* -EINVAL if the query was not successful at all |
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* -EINVAL if the output buffer size exceeds buffersize |
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* |
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* Note: The buffersize must at least be the maximum of the input and output |
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* size. E.g. Battery info query is defined to have 1 byte input |
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* and 128 byte output. The caller would do: |
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* buffer = kzalloc(128, GFP_KERNEL); |
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* ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128) |
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*/ |
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static int hp_wmi_perform_query(int query, enum hp_wmi_command command, |
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void *buffer, int insize, int outsize) |
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{ |
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int mid; |
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struct bios_return *bios_return; |
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int actual_outsize; |
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union acpi_object *obj; |
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struct bios_args args = { |
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.signature = 0x55434553, |
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.command = command, |
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.commandtype = query, |
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.datasize = insize, |
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.data = { 0 }, |
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}; |
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struct acpi_buffer input = { sizeof(struct bios_args), &args }; |
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struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
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int ret = 0; |
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mid = encode_outsize_for_pvsz(outsize); |
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if (WARN_ON(mid < 0)) |
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return mid; |
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if (WARN_ON(insize > sizeof(args.data))) |
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return -EINVAL; |
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memcpy(&args.data[0], buffer, insize); |
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wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output); |
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obj = output.pointer; |
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if (!obj) |
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return -EINVAL; |
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if (obj->type != ACPI_TYPE_BUFFER) { |
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ret = -EINVAL; |
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goto out_free; |
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} |
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bios_return = (struct bios_return *)obj->buffer.pointer; |
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ret = bios_return->return_code; |
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if (ret) { |
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if (ret != HPWMI_RET_UNKNOWN_COMMAND && |
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ret != HPWMI_RET_UNKNOWN_CMDTYPE) |
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pr_warn("query 0x%x returned error 0x%x\n", query, ret); |
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goto out_free; |
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} |
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/* Ignore output data of zero size */ |
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if (!outsize) |
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goto out_free; |
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actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); |
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memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); |
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memset(buffer + actual_outsize, 0, outsize - actual_outsize); |
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out_free: |
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kfree(obj); |
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return ret; |
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} |
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static int hp_wmi_read_int(int query) |
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{ |
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int val = 0, ret; |
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ret = hp_wmi_perform_query(query, HPWMI_READ, &val, |
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sizeof(val), sizeof(val)); |
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if (ret) |
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return ret < 0 ? ret : -EINVAL; |
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return val; |
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} |
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static int hp_wmi_hw_state(int mask) |
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{ |
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int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY); |
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if (state < 0) |
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return state; |
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return !!(state & mask); |
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} |
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static int __init hp_wmi_bios_2008_later(void) |
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{ |
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int state = 0; |
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int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state, |
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sizeof(state), sizeof(state)); |
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if (!ret) |
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return 1; |
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return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; |
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} |
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static int __init hp_wmi_bios_2009_later(void) |
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{ |
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u8 state[128]; |
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int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state, |
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sizeof(state), sizeof(state)); |
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if (!ret) |
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return 1; |
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return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; |
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} |
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static int __init hp_wmi_enable_hotkeys(void) |
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{ |
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int value = 0x6e; |
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int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value, |
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sizeof(value), 0); |
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return ret <= 0 ? ret : -EINVAL; |
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} |
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static int hp_wmi_set_block(void *data, bool blocked) |
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{ |
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enum hp_wmi_radio r = (enum hp_wmi_radio) data; |
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int query = BIT(r + 8) | ((!blocked) << r); |
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int ret; |
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ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, |
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&query, sizeof(query), 0); |
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return ret <= 0 ? ret : -EINVAL; |
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} |
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static const struct rfkill_ops hp_wmi_rfkill_ops = { |
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.set_block = hp_wmi_set_block, |
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}; |
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static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) |
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{ |
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int mask = 0x200 << (r * 8); |
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int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); |
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/* TBD: Pass error */ |
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WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); |
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return !(wireless & mask); |
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} |
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static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
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{ |
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int mask = 0x800 << (r * 8); |
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int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); |
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/* TBD: Pass error */ |
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WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); |
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return !(wireless & mask); |
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} |
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static int hp_wmi_rfkill2_set_block(void *data, bool blocked) |
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{ |
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int rfkill_id = (int)(long)data; |
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char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; |
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int ret; |
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ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE, |
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buffer, sizeof(buffer), 0); |
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return ret <= 0 ? ret : -EINVAL; |
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} |
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static const struct rfkill_ops hp_wmi_rfkill2_ops = { |
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.set_block = hp_wmi_rfkill2_set_block, |
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}; |
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static int hp_wmi_rfkill2_refresh(void) |
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{ |
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struct bios_rfkill2_state state; |
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int err, i; |
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, |
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sizeof(state), sizeof(state)); |
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if (err) |
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return err; |
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for (i = 0; i < rfkill2_count; i++) { |
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int num = rfkill2[i].num; |
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struct bios_rfkill2_device_state *devstate; |
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devstate = &state.device[num]; |
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|
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if (num >= state.count || |
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devstate->rfkill_id != rfkill2[i].id) { |
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pr_warn("power configuration of the wireless devices unexpectedly changed\n"); |
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continue; |
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} |
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rfkill_set_states(rfkill2[i].rfkill, |
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IS_SWBLOCKED(devstate->power), |
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IS_HWBLOCKED(devstate->power)); |
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} |
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return 0; |
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} |
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static ssize_t display_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY); |
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if (value < 0) |
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return value; |
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return sprintf(buf, "%d\n", value); |
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} |
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|
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static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY); |
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if (value < 0) |
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return value; |
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return sprintf(buf, "%d\n", value); |
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} |
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|
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static ssize_t als_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int value = hp_wmi_read_int(HPWMI_ALS_QUERY); |
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if (value < 0) |
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return value; |
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return sprintf(buf, "%d\n", value); |
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} |
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|
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static ssize_t dock_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int value = hp_wmi_hw_state(HPWMI_DOCK_MASK); |
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if (value < 0) |
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return value; |
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return sprintf(buf, "%d\n", value); |
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} |
|
|
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static ssize_t tablet_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int value = hp_wmi_hw_state(HPWMI_TABLET_MASK); |
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if (value < 0) |
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return value; |
|
return sprintf(buf, "%d\n", value); |
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} |
|
|
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static ssize_t postcode_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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/* Get the POST error code of previous boot failure. */ |
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int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY); |
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if (value < 0) |
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return value; |
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return sprintf(buf, "0x%x\n", value); |
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} |
|
|
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static ssize_t als_store(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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u32 tmp; |
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int ret; |
|
|
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ret = kstrtou32(buf, 10, &tmp); |
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if (ret) |
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return ret; |
|
|
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ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp, |
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sizeof(tmp), sizeof(tmp)); |
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if (ret) |
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return ret < 0 ? ret : -EINVAL; |
|
|
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return count; |
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} |
|
|
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static ssize_t postcode_store(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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u32 tmp = 1; |
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bool clear; |
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int ret; |
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|
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ret = kstrtobool(buf, &clear); |
|
if (ret) |
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return ret; |
|
|
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if (clear == false) |
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return -EINVAL; |
|
|
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/* Clear the POST error code. It is kept until until cleared. */ |
|
ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp, |
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sizeof(tmp), sizeof(tmp)); |
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if (ret) |
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return ret < 0 ? ret : -EINVAL; |
|
|
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return count; |
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} |
|
|
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static DEVICE_ATTR_RO(display); |
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static DEVICE_ATTR_RO(hddtemp); |
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static DEVICE_ATTR_RW(als); |
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static DEVICE_ATTR_RO(dock); |
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static DEVICE_ATTR_RO(tablet); |
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static DEVICE_ATTR_RW(postcode); |
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|
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static struct attribute *hp_wmi_attrs[] = { |
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&dev_attr_display.attr, |
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&dev_attr_hddtemp.attr, |
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&dev_attr_als.attr, |
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&dev_attr_dock.attr, |
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&dev_attr_tablet.attr, |
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&dev_attr_postcode.attr, |
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NULL, |
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}; |
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ATTRIBUTE_GROUPS(hp_wmi); |
|
|
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static void hp_wmi_notify(u32 value, void *context) |
|
{ |
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struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; |
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u32 event_id, event_data; |
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union acpi_object *obj; |
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acpi_status status; |
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u32 *location; |
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int key_code; |
|
|
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status = wmi_get_event_data(value, &response); |
|
if (status != AE_OK) { |
|
pr_info("bad event status 0x%x\n", status); |
|
return; |
|
} |
|
|
|
obj = (union acpi_object *)response.pointer; |
|
|
|
if (!obj) |
|
return; |
|
if (obj->type != ACPI_TYPE_BUFFER) { |
|
pr_info("Unknown response received %d\n", obj->type); |
|
kfree(obj); |
|
return; |
|
} |
|
|
|
/* |
|
* Depending on ACPI version the concatenation of id and event data |
|
* inside _WED function will result in a 8 or 16 byte buffer. |
|
*/ |
|
location = (u32 *)obj->buffer.pointer; |
|
if (obj->buffer.length == 8) { |
|
event_id = *location; |
|
event_data = *(location + 1); |
|
} else if (obj->buffer.length == 16) { |
|
event_id = *location; |
|
event_data = *(location + 2); |
|
} else { |
|
pr_info("Unknown buffer length %d\n", obj->buffer.length); |
|
kfree(obj); |
|
return; |
|
} |
|
kfree(obj); |
|
|
|
switch (event_id) { |
|
case HPWMI_DOCK_EVENT: |
|
if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) |
|
input_report_switch(hp_wmi_input_dev, SW_DOCK, |
|
hp_wmi_hw_state(HPWMI_DOCK_MASK)); |
|
if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) |
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, |
|
hp_wmi_hw_state(HPWMI_TABLET_MASK)); |
|
input_sync(hp_wmi_input_dev); |
|
break; |
|
case HPWMI_PARK_HDD: |
|
break; |
|
case HPWMI_SMART_ADAPTER: |
|
break; |
|
case HPWMI_BEZEL_BUTTON: |
|
key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); |
|
if (key_code < 0) |
|
break; |
|
|
|
if (!sparse_keymap_report_event(hp_wmi_input_dev, |
|
key_code, 1, true)) |
|
pr_info("Unknown key code - 0x%x\n", key_code); |
|
break; |
|
case HPWMI_WIRELESS: |
|
if (rfkill2_count) { |
|
hp_wmi_rfkill2_refresh(); |
|
break; |
|
} |
|
|
|
if (wifi_rfkill) |
|
rfkill_set_states(wifi_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WIFI), |
|
hp_wmi_get_hw_state(HPWMI_WIFI)); |
|
if (bluetooth_rfkill) |
|
rfkill_set_states(bluetooth_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_BLUETOOTH), |
|
hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); |
|
if (wwan_rfkill) |
|
rfkill_set_states(wwan_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WWAN), |
|
hp_wmi_get_hw_state(HPWMI_WWAN)); |
|
break; |
|
case HPWMI_CPU_BATTERY_THROTTLE: |
|
pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); |
|
break; |
|
case HPWMI_LOCK_SWITCH: |
|
break; |
|
case HPWMI_LID_SWITCH: |
|
break; |
|
case HPWMI_SCREEN_ROTATION: |
|
break; |
|
case HPWMI_COOLSENSE_SYSTEM_MOBILE: |
|
break; |
|
case HPWMI_COOLSENSE_SYSTEM_HOT: |
|
break; |
|
case HPWMI_PROXIMITY_SENSOR: |
|
break; |
|
case HPWMI_BACKLIT_KB_BRIGHTNESS: |
|
break; |
|
case HPWMI_PEAKSHIFT_PERIOD: |
|
break; |
|
case HPWMI_BATTERY_CHARGE_PERIOD: |
|
break; |
|
default: |
|
pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); |
|
break; |
|
} |
|
} |
|
|
|
static int __init hp_wmi_input_setup(void) |
|
{ |
|
acpi_status status; |
|
int err, val; |
|
|
|
hp_wmi_input_dev = input_allocate_device(); |
|
if (!hp_wmi_input_dev) |
|
return -ENOMEM; |
|
|
|
hp_wmi_input_dev->name = "HP WMI hotkeys"; |
|
hp_wmi_input_dev->phys = "wmi/input0"; |
|
hp_wmi_input_dev->id.bustype = BUS_HOST; |
|
|
|
__set_bit(EV_SW, hp_wmi_input_dev->evbit); |
|
|
|
/* Dock */ |
|
val = hp_wmi_hw_state(HPWMI_DOCK_MASK); |
|
if (!(val < 0)) { |
|
__set_bit(SW_DOCK, hp_wmi_input_dev->swbit); |
|
input_report_switch(hp_wmi_input_dev, SW_DOCK, val); |
|
} |
|
|
|
/* Tablet mode */ |
|
if (enable_tablet_mode_sw > 0) { |
|
val = hp_wmi_hw_state(HPWMI_TABLET_MASK); |
|
if (val >= 0) { |
|
__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); |
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); |
|
} |
|
} |
|
|
|
err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); |
|
if (err) |
|
goto err_free_dev; |
|
|
|
/* Set initial hardware state */ |
|
input_sync(hp_wmi_input_dev); |
|
|
|
if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later()) |
|
hp_wmi_enable_hotkeys(); |
|
|
|
status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); |
|
if (ACPI_FAILURE(status)) { |
|
err = -EIO; |
|
goto err_free_dev; |
|
} |
|
|
|
err = input_register_device(hp_wmi_input_dev); |
|
if (err) |
|
goto err_uninstall_notifier; |
|
|
|
return 0; |
|
|
|
err_uninstall_notifier: |
|
wmi_remove_notify_handler(HPWMI_EVENT_GUID); |
|
err_free_dev: |
|
input_free_device(hp_wmi_input_dev); |
|
return err; |
|
} |
|
|
|
static void hp_wmi_input_destroy(void) |
|
{ |
|
wmi_remove_notify_handler(HPWMI_EVENT_GUID); |
|
input_unregister_device(hp_wmi_input_dev); |
|
} |
|
|
|
static int __init hp_wmi_rfkill_setup(struct platform_device *device) |
|
{ |
|
int err, wireless; |
|
|
|
wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); |
|
if (wireless < 0) |
|
return wireless; |
|
|
|
err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless, |
|
sizeof(wireless), 0); |
|
if (err) |
|
return err; |
|
|
|
if (wireless & 0x1) { |
|
wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, |
|
RFKILL_TYPE_WLAN, |
|
&hp_wmi_rfkill_ops, |
|
(void *) HPWMI_WIFI); |
|
if (!wifi_rfkill) |
|
return -ENOMEM; |
|
rfkill_init_sw_state(wifi_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WIFI)); |
|
rfkill_set_hw_state(wifi_rfkill, |
|
hp_wmi_get_hw_state(HPWMI_WIFI)); |
|
err = rfkill_register(wifi_rfkill); |
|
if (err) |
|
goto register_wifi_error; |
|
} |
|
|
|
if (wireless & 0x2) { |
|
bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, |
|
RFKILL_TYPE_BLUETOOTH, |
|
&hp_wmi_rfkill_ops, |
|
(void *) HPWMI_BLUETOOTH); |
|
if (!bluetooth_rfkill) { |
|
err = -ENOMEM; |
|
goto register_bluetooth_error; |
|
} |
|
rfkill_init_sw_state(bluetooth_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); |
|
rfkill_set_hw_state(bluetooth_rfkill, |
|
hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); |
|
err = rfkill_register(bluetooth_rfkill); |
|
if (err) |
|
goto register_bluetooth_error; |
|
} |
|
|
|
if (wireless & 0x4) { |
|
wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, |
|
RFKILL_TYPE_WWAN, |
|
&hp_wmi_rfkill_ops, |
|
(void *) HPWMI_WWAN); |
|
if (!wwan_rfkill) { |
|
err = -ENOMEM; |
|
goto register_wwan_error; |
|
} |
|
rfkill_init_sw_state(wwan_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WWAN)); |
|
rfkill_set_hw_state(wwan_rfkill, |
|
hp_wmi_get_hw_state(HPWMI_WWAN)); |
|
err = rfkill_register(wwan_rfkill); |
|
if (err) |
|
goto register_wwan_error; |
|
} |
|
|
|
return 0; |
|
|
|
register_wwan_error: |
|
rfkill_destroy(wwan_rfkill); |
|
wwan_rfkill = NULL; |
|
if (bluetooth_rfkill) |
|
rfkill_unregister(bluetooth_rfkill); |
|
register_bluetooth_error: |
|
rfkill_destroy(bluetooth_rfkill); |
|
bluetooth_rfkill = NULL; |
|
if (wifi_rfkill) |
|
rfkill_unregister(wifi_rfkill); |
|
register_wifi_error: |
|
rfkill_destroy(wifi_rfkill); |
|
wifi_rfkill = NULL; |
|
return err; |
|
} |
|
|
|
static int __init hp_wmi_rfkill2_setup(struct platform_device *device) |
|
{ |
|
struct bios_rfkill2_state state; |
|
int err, i; |
|
|
|
err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, |
|
sizeof(state), sizeof(state)); |
|
if (err) |
|
return err < 0 ? err : -EINVAL; |
|
|
|
if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { |
|
pr_warn("unable to parse 0x1b query output\n"); |
|
return -EINVAL; |
|
} |
|
|
|
for (i = 0; i < state.count; i++) { |
|
struct rfkill *rfkill; |
|
enum rfkill_type type; |
|
char *name; |
|
switch (state.device[i].radio_type) { |
|
case HPWMI_WIFI: |
|
type = RFKILL_TYPE_WLAN; |
|
name = "hp-wifi"; |
|
break; |
|
case HPWMI_BLUETOOTH: |
|
type = RFKILL_TYPE_BLUETOOTH; |
|
name = "hp-bluetooth"; |
|
break; |
|
case HPWMI_WWAN: |
|
type = RFKILL_TYPE_WWAN; |
|
name = "hp-wwan"; |
|
break; |
|
case HPWMI_GPS: |
|
type = RFKILL_TYPE_GPS; |
|
name = "hp-gps"; |
|
break; |
|
default: |
|
pr_warn("unknown device type 0x%x\n", |
|
state.device[i].radio_type); |
|
continue; |
|
} |
|
|
|
if (!state.device[i].vendor_id) { |
|
pr_warn("zero device %d while %d reported\n", |
|
i, state.count); |
|
continue; |
|
} |
|
|
|
rfkill = rfkill_alloc(name, &device->dev, type, |
|
&hp_wmi_rfkill2_ops, (void *)(long)i); |
|
if (!rfkill) { |
|
err = -ENOMEM; |
|
goto fail; |
|
} |
|
|
|
rfkill2[rfkill2_count].id = state.device[i].rfkill_id; |
|
rfkill2[rfkill2_count].num = i; |
|
rfkill2[rfkill2_count].rfkill = rfkill; |
|
|
|
rfkill_init_sw_state(rfkill, |
|
IS_SWBLOCKED(state.device[i].power)); |
|
rfkill_set_hw_state(rfkill, |
|
IS_HWBLOCKED(state.device[i].power)); |
|
|
|
if (!(state.device[i].power & HPWMI_POWER_BIOS)) |
|
pr_info("device %s blocked by BIOS\n", name); |
|
|
|
err = rfkill_register(rfkill); |
|
if (err) { |
|
rfkill_destroy(rfkill); |
|
goto fail; |
|
} |
|
|
|
rfkill2_count++; |
|
} |
|
|
|
return 0; |
|
fail: |
|
for (; rfkill2_count > 0; rfkill2_count--) { |
|
rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); |
|
rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); |
|
} |
|
return err; |
|
} |
|
|
|
static int thermal_profile_get(void) |
|
{ |
|
return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY); |
|
} |
|
|
|
static int thermal_profile_set(int thermal_profile) |
|
{ |
|
return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile, |
|
sizeof(thermal_profile), 0); |
|
} |
|
|
|
static int platform_profile_get(struct platform_profile_handler *pprof, |
|
enum platform_profile_option *profile) |
|
{ |
|
int tp; |
|
|
|
tp = thermal_profile_get(); |
|
if (tp < 0) |
|
return tp; |
|
|
|
switch (tp) { |
|
case HP_THERMAL_PROFILE_PERFORMANCE: |
|
*profile = PLATFORM_PROFILE_PERFORMANCE; |
|
break; |
|
case HP_THERMAL_PROFILE_DEFAULT: |
|
*profile = PLATFORM_PROFILE_BALANCED; |
|
break; |
|
case HP_THERMAL_PROFILE_COOL: |
|
*profile = PLATFORM_PROFILE_COOL; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int platform_profile_set(struct platform_profile_handler *pprof, |
|
enum platform_profile_option profile) |
|
{ |
|
int err, tp; |
|
|
|
switch (profile) { |
|
case PLATFORM_PROFILE_PERFORMANCE: |
|
tp = HP_THERMAL_PROFILE_PERFORMANCE; |
|
break; |
|
case PLATFORM_PROFILE_BALANCED: |
|
tp = HP_THERMAL_PROFILE_DEFAULT; |
|
break; |
|
case PLATFORM_PROFILE_COOL: |
|
tp = HP_THERMAL_PROFILE_COOL; |
|
break; |
|
default: |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
err = thermal_profile_set(tp); |
|
if (err) |
|
return err; |
|
|
|
return 0; |
|
} |
|
|
|
static int thermal_profile_setup(void) |
|
{ |
|
int err, tp; |
|
|
|
tp = thermal_profile_get(); |
|
if (tp < 0) |
|
return tp; |
|
|
|
/* |
|
* call thermal profile write command to ensure that the firmware correctly |
|
* sets the OEM variables for the DPTF |
|
*/ |
|
err = thermal_profile_set(tp); |
|
if (err) |
|
return err; |
|
|
|
platform_profile_handler.profile_get = platform_profile_get, |
|
platform_profile_handler.profile_set = platform_profile_set, |
|
|
|
set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); |
|
set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices); |
|
set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices); |
|
|
|
err = platform_profile_register(&platform_profile_handler); |
|
if (err) |
|
return err; |
|
|
|
platform_profile_support = true; |
|
|
|
return 0; |
|
} |
|
|
|
static int __init hp_wmi_bios_setup(struct platform_device *device) |
|
{ |
|
/* clear detected rfkill devices */ |
|
wifi_rfkill = NULL; |
|
bluetooth_rfkill = NULL; |
|
wwan_rfkill = NULL; |
|
rfkill2_count = 0; |
|
|
|
if (hp_wmi_rfkill_setup(device)) |
|
hp_wmi_rfkill2_setup(device); |
|
|
|
thermal_profile_setup(); |
|
|
|
return 0; |
|
} |
|
|
|
static int __exit hp_wmi_bios_remove(struct platform_device *device) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < rfkill2_count; i++) { |
|
rfkill_unregister(rfkill2[i].rfkill); |
|
rfkill_destroy(rfkill2[i].rfkill); |
|
} |
|
|
|
if (wifi_rfkill) { |
|
rfkill_unregister(wifi_rfkill); |
|
rfkill_destroy(wifi_rfkill); |
|
} |
|
if (bluetooth_rfkill) { |
|
rfkill_unregister(bluetooth_rfkill); |
|
rfkill_destroy(bluetooth_rfkill); |
|
} |
|
if (wwan_rfkill) { |
|
rfkill_unregister(wwan_rfkill); |
|
rfkill_destroy(wwan_rfkill); |
|
} |
|
|
|
if (platform_profile_support) |
|
platform_profile_remove(); |
|
|
|
return 0; |
|
} |
|
|
|
static int hp_wmi_resume_handler(struct device *device) |
|
{ |
|
/* |
|
* Hardware state may have changed while suspended, so trigger |
|
* input events for the current state. As this is a switch, |
|
* the input layer will only actually pass it on if the state |
|
* changed. |
|
*/ |
|
if (hp_wmi_input_dev) { |
|
if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) |
|
input_report_switch(hp_wmi_input_dev, SW_DOCK, |
|
hp_wmi_hw_state(HPWMI_DOCK_MASK)); |
|
if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) |
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, |
|
hp_wmi_hw_state(HPWMI_TABLET_MASK)); |
|
input_sync(hp_wmi_input_dev); |
|
} |
|
|
|
if (rfkill2_count) |
|
hp_wmi_rfkill2_refresh(); |
|
|
|
if (wifi_rfkill) |
|
rfkill_set_states(wifi_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WIFI), |
|
hp_wmi_get_hw_state(HPWMI_WIFI)); |
|
if (bluetooth_rfkill) |
|
rfkill_set_states(bluetooth_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_BLUETOOTH), |
|
hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); |
|
if (wwan_rfkill) |
|
rfkill_set_states(wwan_rfkill, |
|
hp_wmi_get_sw_state(HPWMI_WWAN), |
|
hp_wmi_get_hw_state(HPWMI_WWAN)); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops hp_wmi_pm_ops = { |
|
.resume = hp_wmi_resume_handler, |
|
.restore = hp_wmi_resume_handler, |
|
}; |
|
|
|
static struct platform_driver hp_wmi_driver = { |
|
.driver = { |
|
.name = "hp-wmi", |
|
.pm = &hp_wmi_pm_ops, |
|
.dev_groups = hp_wmi_groups, |
|
}, |
|
.remove = __exit_p(hp_wmi_bios_remove), |
|
}; |
|
|
|
static int __init hp_wmi_init(void) |
|
{ |
|
int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
|
int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); |
|
int err; |
|
|
|
if (!bios_capable && !event_capable) |
|
return -ENODEV; |
|
|
|
if (event_capable) { |
|
err = hp_wmi_input_setup(); |
|
if (err) |
|
return err; |
|
} |
|
|
|
if (bios_capable) { |
|
hp_wmi_platform_dev = |
|
platform_device_register_simple("hp-wmi", -1, NULL, 0); |
|
if (IS_ERR(hp_wmi_platform_dev)) { |
|
err = PTR_ERR(hp_wmi_platform_dev); |
|
goto err_destroy_input; |
|
} |
|
|
|
err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); |
|
if (err) |
|
goto err_unregister_device; |
|
} |
|
|
|
return 0; |
|
|
|
err_unregister_device: |
|
platform_device_unregister(hp_wmi_platform_dev); |
|
err_destroy_input: |
|
if (event_capable) |
|
hp_wmi_input_destroy(); |
|
|
|
return err; |
|
} |
|
module_init(hp_wmi_init); |
|
|
|
static void __exit hp_wmi_exit(void) |
|
{ |
|
if (wmi_has_guid(HPWMI_EVENT_GUID)) |
|
hp_wmi_input_destroy(); |
|
|
|
if (hp_wmi_platform_dev) { |
|
platform_device_unregister(hp_wmi_platform_dev); |
|
platform_driver_unregister(&hp_wmi_driver); |
|
} |
|
} |
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module_exit(hp_wmi_exit);
|
|
|