![Alex Hung](/assets/img/avatar_default.png)
Several users reported wifi cannot be unblocked as discussed in [1]. This patch removes the use of the 2009 flag by BIOS but uses the actual WMI function calls - it will be skipped if WMI reports unsupported. [1] https://bugzilla.kernel.org/show_bug.cgi?id=69131 Signed-off-by: Alex Hung <alex.hung@canonical.com> Tested-by: Evgenii Shatokhin <eugene.shatokhin@yandex.ru> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart <dvhart@linux.intel.com>
1043 lines
25 KiB
C
1043 lines
25 KiB
C
/*
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* HP WMI hotkeys
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*
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* Copyright (C) 2008 Red Hat <mjg@redhat.com>
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* Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
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*
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* Portions based on wistron_btns.c:
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* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
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* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
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* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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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/acpi.h>
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#include <linux/rfkill.h>
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#include <linux/string.h>
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MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
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MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
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MODULE_LICENSE("GPL");
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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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#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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#define HPWMI_DISPLAY_QUERY 0x1
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#define HPWMI_HDDTEMP_QUERY 0x2
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#define HPWMI_ALS_QUERY 0x3
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#define HPWMI_HARDWARE_QUERY 0x4
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#define HPWMI_WIRELESS_QUERY 0x5
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#define HPWMI_BIOS_QUERY 0x9
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#define HPWMI_FEATURE_QUERY 0xb
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#define HPWMI_HOTKEY_QUERY 0xc
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#define HPWMI_FEATURE2_QUERY 0xd
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#define HPWMI_WIRELESS2_QUERY 0x1b
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#define HPWMI_POSTCODEERROR_QUERY 0x2a
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enum hp_wmi_radio {
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HPWMI_WIFI = 0,
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HPWMI_BLUETOOTH = 1,
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HPWMI_WWAN = 2,
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HPWMI_GPS = 3,
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};
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enum hp_wmi_event_ids {
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HPWMI_DOCK_EVENT = 1,
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HPWMI_PARK_HDD = 2,
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HPWMI_SMART_ADAPTER = 3,
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HPWMI_BEZEL_BUTTON = 4,
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HPWMI_WIRELESS = 5,
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HPWMI_CPU_BATTERY_THROTTLE = 6,
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HPWMI_LOCK_SWITCH = 7,
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HPWMI_LID_SWITCH = 8,
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HPWMI_SCREEN_ROTATION = 9,
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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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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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u32 data;
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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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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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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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};
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#define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
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!= (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
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#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
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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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/* 7 devices fit into the 128 byte buffer */
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#define HPWMI_MAX_RFKILL2_DEVICES 7
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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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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 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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/*
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* hp_wmi_perform_query
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*
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* query: The commandtype -> What should be queried
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* write: The command -> 0 read, 1 write, 3 ODM specific
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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 (0x7) 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(0x7, 0, buffer, 1, 128)
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*/
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static int hp_wmi_perform_query(int query, int write, void *buffer,
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int insize, int outsize)
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{
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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 = write ? 0x2 : 0x1,
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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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u32 rc;
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if (WARN_ON(insize > sizeof(args.data)))
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return -EINVAL;
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memcpy(&args.data, buffer, insize);
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wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &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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else if (obj->type != ACPI_TYPE_BUFFER) {
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kfree(obj);
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return -EINVAL;
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}
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bios_return = (struct bios_return *)obj->buffer.pointer;
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rc = bios_return->return_code;
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if (rc) {
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if (rc != HPWMI_RET_UNKNOWN_CMDTYPE)
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pr_warn("query 0x%x returned error 0x%x\n", query, rc);
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kfree(obj);
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return rc;
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}
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if (!outsize) {
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/* ignore output data */
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kfree(obj);
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return 0;
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}
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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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kfree(obj);
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return 0;
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}
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static int hp_wmi_display_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return -EINVAL;
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return state;
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}
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static int hp_wmi_hddtemp_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return -EINVAL;
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return state;
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}
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static int hp_wmi_als_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return -EINVAL;
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return state;
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}
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static int hp_wmi_dock_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return -EINVAL;
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return state & 0x1;
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}
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static int hp_wmi_tablet_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret;
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return (state & 0x4) ? 1 : 0;
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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, 0, &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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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &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, 1, &value,
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sizeof(value), 0);
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if (ret)
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return -EINVAL;
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return 0;
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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, 1,
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&query, sizeof(query), 0);
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if (ret)
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return -EINVAL;
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return 0;
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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 wireless = 0;
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int mask;
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
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&wireless, sizeof(wireless),
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sizeof(wireless));
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/* TBD: Pass error */
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mask = 0x200 << (r * 8);
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if (wireless & mask)
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return false;
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else
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return true;
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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 wireless = 0;
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int mask;
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
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&wireless, sizeof(wireless),
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sizeof(wireless));
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/* TBD: Pass error */
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mask = 0x800 << (r * 8);
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if (wireless & mask)
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return false;
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else
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return true;
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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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if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
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buffer, sizeof(buffer), 0))
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return -EINVAL;
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return 0;
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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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int err, i;
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struct bios_rfkill2_state state;
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
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0, 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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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 int hp_wmi_post_code_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return -EINVAL;
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return state;
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}
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static ssize_t show_display(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_display_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "%d\n", value);
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}
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static ssize_t show_hddtemp(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_hddtemp_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "%d\n", value);
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}
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static ssize_t show_als(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_als_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "%d\n", value);
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}
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static ssize_t show_dock(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_dock_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "%d\n", value);
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}
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static ssize_t show_tablet(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_tablet_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "%d\n", value);
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}
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static ssize_t show_postcode(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_post_code_state();
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if (value < 0)
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return -EINVAL;
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return sprintf(buf, "0x%x\n", value);
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}
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static ssize_t set_als(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
u32 tmp = simple_strtoul(buf, NULL, 10);
|
|
int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
|
|
sizeof(tmp), sizeof(tmp));
|
|
if (ret)
|
|
return -EINVAL;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_postcode(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int ret;
|
|
u32 tmp;
|
|
long unsigned int tmp2;
|
|
|
|
ret = kstrtoul(buf, 10, &tmp2);
|
|
if (ret || tmp2 != 1)
|
|
return -EINVAL;
|
|
|
|
/* Clear the POST error code. It is kept until until cleared. */
|
|
tmp = (u32) tmp2;
|
|
ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp,
|
|
sizeof(tmp), sizeof(tmp));
|
|
if (ret)
|
|
return -EINVAL;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
|
|
static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
|
|
static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
|
|
static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
|
|
static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
|
|
static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode);
|
|
|
|
static void hp_wmi_notify(u32 value, void *context)
|
|
{
|
|
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj;
|
|
u32 event_id, event_data;
|
|
int key_code = 0, ret;
|
|
u32 *location;
|
|
acpi_status status;
|
|
|
|
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:
|
|
input_report_switch(hp_wmi_input_dev, SW_DOCK,
|
|
hp_wmi_dock_state());
|
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
|
|
hp_wmi_tablet_state());
|
|
input_sync(hp_wmi_input_dev);
|
|
break;
|
|
case HPWMI_PARK_HDD:
|
|
break;
|
|
case HPWMI_SMART_ADAPTER:
|
|
break;
|
|
case HPWMI_BEZEL_BUTTON:
|
|
ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
|
|
&key_code,
|
|
sizeof(key_code),
|
|
sizeof(key_code));
|
|
if (ret)
|
|
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;
|
|
|
|
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);
|
|
__set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
|
|
__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
|
|
|
|
err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
/* Set initial hardware state */
|
|
input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
|
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
|
|
hp_wmi_tablet_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_keymap;
|
|
}
|
|
|
|
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_keymap:
|
|
sparse_keymap_free(hp_wmi_input_dev);
|
|
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);
|
|
sparse_keymap_free(hp_wmi_input_dev);
|
|
input_unregister_device(hp_wmi_input_dev);
|
|
}
|
|
|
|
static void cleanup_sysfs(struct platform_device *device)
|
|
{
|
|
device_remove_file(&device->dev, &dev_attr_display);
|
|
device_remove_file(&device->dev, &dev_attr_hddtemp);
|
|
device_remove_file(&device->dev, &dev_attr_als);
|
|
device_remove_file(&device->dev, &dev_attr_dock);
|
|
device_remove_file(&device->dev, &dev_attr_tablet);
|
|
device_remove_file(&device->dev, &dev_attr_postcode);
|
|
}
|
|
|
|
static int __init hp_wmi_rfkill_setup(struct platform_device *device)
|
|
{
|
|
int err;
|
|
int wireless = 0;
|
|
|
|
err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
|
|
sizeof(wireless), sizeof(wireless));
|
|
if (err)
|
|
return err;
|
|
|
|
err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &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)
|
|
{
|
|
int err, i;
|
|
struct bios_rfkill2_state state;
|
|
err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
|
|
0, sizeof(state));
|
|
if (err)
|
|
return err;
|
|
|
|
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 __init hp_wmi_bios_setup(struct platform_device *device)
|
|
{
|
|
int err;
|
|
|
|
/* 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);
|
|
|
|
err = device_create_file(&device->dev, &dev_attr_display);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
err = device_create_file(&device->dev, &dev_attr_hddtemp);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
err = device_create_file(&device->dev, &dev_attr_als);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
err = device_create_file(&device->dev, &dev_attr_dock);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
err = device_create_file(&device->dev, &dev_attr_tablet);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
err = device_create_file(&device->dev, &dev_attr_postcode);
|
|
if (err)
|
|
goto add_sysfs_error;
|
|
return 0;
|
|
|
|
add_sysfs_error:
|
|
cleanup_sysfs(device);
|
|
return err;
|
|
}
|
|
|
|
static int __exit hp_wmi_bios_remove(struct platform_device *device)
|
|
{
|
|
int i;
|
|
cleanup_sysfs(device);
|
|
|
|
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);
|
|
}
|
|
|
|
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) {
|
|
input_report_switch(hp_wmi_input_dev, SW_DOCK,
|
|
hp_wmi_dock_state());
|
|
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
|
|
hp_wmi_tablet_state());
|
|
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,
|
|
},
|
|
.remove = __exit_p(hp_wmi_bios_remove),
|
|
};
|
|
|
|
static int __init hp_wmi_init(void)
|
|
{
|
|
int err;
|
|
int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
|
|
int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
|
|
|
|
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);
|
|
}
|
|
}
|
|
module_exit(hp_wmi_exit);
|