mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
af1d486c18
HP wmi platform driver fails to initialize GPS and causes poweroff failure in HP Elitebook 6930p. Call Trace: [<ffffffffa088d25a>] hp_wmi_bios_setup+0x25a/0x3a0 [hp_wmi] [<ffffffff8135978c>] platform_drv_probe+0x3c/0x70 [<ffffffff81356d6a>] ? driver_sysfs_add+0x7a/0xb0 [<ffffffff81357407>] driver_probe_device+0x87/0x3a0 [<ffffffff813577f3>] __driver_attach+0x93/0xa0 [<ffffffff81357760>] ? __device_attach+0x40/0x40 [<ffffffff81355403>] bus_for_each_dev+0x63/0xa0 [<ffffffff81356e8e>] driver_attach+0x1e/0x20 [<ffffffff81356a28>] bus_add_driver+0x1f8/0x2b0 [<ffffffff81357e81>] driver_register+0x71/0x150 [<ffffffff813594e6>] platform_driver_register+0x46/0x50 [<ffffffff813595ab>] platform_driver_probe+0x1b/0xa0 [<ffffffffa088d55e>] hp_wmi_init+0x1be/0x1fb [hp_wmi] [<ffffffffa088d3a0>] ? hp_wmi_bios_setup+0x3a0/0x3a0 [hp_wmi] [<ffffffff8100210a>] do_one_initcall+0x10a/0x160 [<ffffffff810bdac6>] load_module+0x1b46/0x2640 [<ffffffff8128da20>] ? ddebug_proc_write+0xf0/0xf0 [<ffffffff810be662>] sys_init_module+0xa2/0xf0 [<ffffffff814d975d>] system_call_fastpath+0x1a/0x1f Code: 48 ff ff ff 80 7b 24 00 74 d2 41 83 e5 01 45 38 ec 74 c9 48 8d bb a0 03 00 00 e8 ed fb aa e0 5b 41 5c 41 5d 44 89 f0 41 5e 5d c3 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 RIP [<ffffffffa05c57af>] rfkill_set_hw_state+0x9f/0xb0 [rfkill] RSP <ffff880071523b60> Check code and find this error is caused by misusing variable bluetooth_rfkill where gps_rfkill should be. Reported-and-tested-by: Iru Cai <mytbk920423@gmail.com> References: https://bugzilla.kernel.org/show_bug.cgi?id=58401 Cc: All <stable@vger.kernel.org> Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
988 lines
24 KiB
C
988 lines
24 KiB
C
/*
|
|
* HP WMI hotkeys
|
|
*
|
|
* Copyright (C) 2008 Red Hat <mjg@redhat.com>
|
|
* Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
|
|
*
|
|
* Portions based on wistron_btns.c:
|
|
* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
|
|
* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
|
|
* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/types.h>
|
|
#include <linux/input.h>
|
|
#include <linux/input/sparse-keymap.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/acpi.h>
|
|
#include <linux/rfkill.h>
|
|
#include <linux/string.h>
|
|
|
|
MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
|
|
MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
|
|
MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
|
|
|
|
#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
|
|
#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
|
|
|
|
#define HPWMI_DISPLAY_QUERY 0x1
|
|
#define HPWMI_HDDTEMP_QUERY 0x2
|
|
#define HPWMI_ALS_QUERY 0x3
|
|
#define HPWMI_HARDWARE_QUERY 0x4
|
|
#define HPWMI_WIRELESS_QUERY 0x5
|
|
#define HPWMI_HOTKEY_QUERY 0xc
|
|
#define HPWMI_WIRELESS2_QUERY 0x1b
|
|
|
|
enum hp_wmi_radio {
|
|
HPWMI_WIFI = 0,
|
|
HPWMI_BLUETOOTH = 1,
|
|
HPWMI_WWAN = 2,
|
|
HPWMI_GPS = 3,
|
|
};
|
|
|
|
enum hp_wmi_event_ids {
|
|
HPWMI_DOCK_EVENT = 1,
|
|
HPWMI_PARK_HDD = 2,
|
|
HPWMI_SMART_ADAPTER = 3,
|
|
HPWMI_BEZEL_BUTTON = 4,
|
|
HPWMI_WIRELESS = 5,
|
|
HPWMI_CPU_BATTERY_THROTTLE = 6,
|
|
HPWMI_LOCK_SWITCH = 7,
|
|
HPWMI_LID_SWITCH = 8,
|
|
HPWMI_SCREEN_ROTATION = 9,
|
|
HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
|
|
HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
|
|
HPWMI_PROXIMITY_SENSOR = 0x0C,
|
|
HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
|
|
HPWMI_PEAKSHIFT_PERIOD = 0x0F,
|
|
HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
|
|
};
|
|
|
|
struct bios_args {
|
|
u32 signature;
|
|
u32 command;
|
|
u32 commandtype;
|
|
u32 datasize;
|
|
u32 data;
|
|
};
|
|
|
|
struct bios_return {
|
|
u32 sigpass;
|
|
u32 return_code;
|
|
};
|
|
|
|
enum hp_return_value {
|
|
HPWMI_RET_WRONG_SIGNATURE = 0x02,
|
|
HPWMI_RET_UNKNOWN_COMMAND = 0x03,
|
|
HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
|
|
HPWMI_RET_INVALID_PARAMETERS = 0x05,
|
|
};
|
|
|
|
enum hp_wireless2_bits {
|
|
HPWMI_POWER_STATE = 0x01,
|
|
HPWMI_POWER_SOFT = 0x02,
|
|
HPWMI_POWER_BIOS = 0x04,
|
|
HPWMI_POWER_HARD = 0x08,
|
|
};
|
|
|
|
#define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
|
|
!= (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
|
|
#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
|
|
|
|
struct bios_rfkill2_device_state {
|
|
u8 radio_type;
|
|
u8 bus_type;
|
|
u16 vendor_id;
|
|
u16 product_id;
|
|
u16 subsys_vendor_id;
|
|
u16 subsys_product_id;
|
|
u8 rfkill_id;
|
|
u8 power;
|
|
u8 unknown[4];
|
|
};
|
|
|
|
/* 7 devices fit into the 128 byte buffer */
|
|
#define HPWMI_MAX_RFKILL2_DEVICES 7
|
|
|
|
struct bios_rfkill2_state {
|
|
u8 unknown[7];
|
|
u8 count;
|
|
u8 pad[8];
|
|
struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
|
|
};
|
|
|
|
static const struct key_entry hp_wmi_keymap[] = {
|
|
{ KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
|
|
{ KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
|
|
{ KE_KEY, 0x20e6, { KEY_PROG1 } },
|
|
{ KE_KEY, 0x20e8, { KEY_MEDIA } },
|
|
{ KE_KEY, 0x2142, { KEY_MEDIA } },
|
|
{ KE_KEY, 0x213b, { KEY_INFO } },
|
|
{ KE_KEY, 0x2169, { KEY_DIRECTION } },
|
|
{ KE_KEY, 0x231b, { KEY_HELP } },
|
|
{ KE_END, 0 }
|
|
};
|
|
|
|
static struct input_dev *hp_wmi_input_dev;
|
|
static struct platform_device *hp_wmi_platform_dev;
|
|
|
|
static struct rfkill *wifi_rfkill;
|
|
static struct rfkill *bluetooth_rfkill;
|
|
static struct rfkill *wwan_rfkill;
|
|
static struct rfkill *gps_rfkill;
|
|
|
|
struct rfkill2_device {
|
|
u8 id;
|
|
int num;
|
|
struct rfkill *rfkill;
|
|
};
|
|
|
|
static int rfkill2_count;
|
|
static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
|
|
|
|
/*
|
|
* hp_wmi_perform_query
|
|
*
|
|
* query: The commandtype -> What should be queried
|
|
* write: The command -> 0 read, 1 write, 3 ODM specific
|
|
* buffer: Buffer used as input and/or output
|
|
* insize: Size of input buffer
|
|
* outsize: Size of output buffer
|
|
*
|
|
* returns zero on success
|
|
* an HP WMI query specific error code (which is positive)
|
|
* -EINVAL if the query was not successful at all
|
|
* -EINVAL if the output buffer size exceeds buffersize
|
|
*
|
|
* Note: The buffersize must at least be the maximum of the input and output
|
|
* size. E.g. Battery info query (0x7) is defined to have 1 byte input
|
|
* and 128 byte output. The caller would do:
|
|
* buffer = kzalloc(128, GFP_KERNEL);
|
|
* ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
|
|
*/
|
|
static int hp_wmi_perform_query(int query, int write, void *buffer,
|
|
int insize, int outsize)
|
|
{
|
|
struct bios_return *bios_return;
|
|
int actual_outsize;
|
|
union acpi_object *obj;
|
|
struct bios_args args = {
|
|
.signature = 0x55434553,
|
|
.command = write ? 0x2 : 0x1,
|
|
.commandtype = query,
|
|
.datasize = insize,
|
|
.data = 0,
|
|
};
|
|
struct acpi_buffer input = { sizeof(struct bios_args), &args };
|
|
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
u32 rc;
|
|
|
|
if (WARN_ON(insize > sizeof(args.data)))
|
|
return -EINVAL;
|
|
memcpy(&args.data, buffer, insize);
|
|
|
|
wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
|
|
|
|
obj = output.pointer;
|
|
|
|
if (!obj)
|
|
return -EINVAL;
|
|
else if (obj->type != ACPI_TYPE_BUFFER) {
|
|
kfree(obj);
|
|
return -EINVAL;
|
|
}
|
|
|
|
bios_return = (struct bios_return *)obj->buffer.pointer;
|
|
rc = bios_return->return_code;
|
|
|
|
if (rc) {
|
|
if (rc != HPWMI_RET_UNKNOWN_CMDTYPE)
|
|
pr_warn("query 0x%x returned error 0x%x\n", query, rc);
|
|
kfree(obj);
|
|
return rc;
|
|
}
|
|
|
|
if (!outsize) {
|
|
/* ignore output data */
|
|
kfree(obj);
|
|
return 0;
|
|
}
|
|
|
|
actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
|
|
memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
|
|
memset(buffer + actual_outsize, 0, outsize - actual_outsize);
|
|
kfree(obj);
|
|
return 0;
|
|
}
|
|
|
|
static int hp_wmi_display_state(void)
|
|
{
|
|
int state = 0;
|
|
int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
|
|
sizeof(state), sizeof(state));
|
|
if (ret)
|
|
return -EINVAL;
|
|
return state;
|
|
}
|
|
|
|
static int hp_wmi_hddtemp_state(void)
|
|
{
|
|
int state = 0;
|
|
int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
|
|
sizeof(state), sizeof(state));
|
|
if (ret)
|
|
return -EINVAL;
|
|
return state;
|
|
}
|
|
|
|
static int hp_wmi_als_state(void)
|
|
{
|
|
int state = 0;
|
|
int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
|
|
sizeof(state), sizeof(state));
|
|
if (ret)
|
|
return -EINVAL;
|
|
return state;
|
|
}
|
|
|
|
static int hp_wmi_dock_state(void)
|
|
{
|
|
int state = 0;
|
|
int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
|
|
sizeof(state), sizeof(state));
|
|
|
|
if (ret)
|
|
return -EINVAL;
|
|
|
|
return state & 0x1;
|
|
}
|
|
|
|
static int hp_wmi_tablet_state(void)
|
|
{
|
|
int state = 0;
|
|
int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
|
|
sizeof(state), sizeof(state));
|
|
if (ret)
|
|
return ret;
|
|
|
|
return (state & 0x4) ? 1 : 0;
|
|
}
|
|
|
|
static int hp_wmi_set_block(void *data, bool blocked)
|
|
{
|
|
enum hp_wmi_radio r = (enum hp_wmi_radio) data;
|
|
int query = BIT(r + 8) | ((!blocked) << r);
|
|
int ret;
|
|
|
|
ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
|
|
&query, sizeof(query), 0);
|
|
if (ret)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static const struct rfkill_ops hp_wmi_rfkill_ops = {
|
|
.set_block = hp_wmi_set_block,
|
|
};
|
|
|
|
static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
|
|
{
|
|
int wireless = 0;
|
|
int mask;
|
|
hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
|
|
&wireless, sizeof(wireless),
|
|
sizeof(wireless));
|
|
/* TBD: Pass error */
|
|
|
|
mask = 0x200 << (r * 8);
|
|
|
|
if (wireless & mask)
|
|
return false;
|
|
else
|
|
return true;
|
|
}
|
|
|
|
static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
|
|
{
|
|
int wireless = 0;
|
|
int mask;
|
|
hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
|
|
&wireless, sizeof(wireless),
|
|
sizeof(wireless));
|
|
/* TBD: Pass error */
|
|
|
|
mask = 0x800 << (r * 8);
|
|
|
|
if (wireless & mask)
|
|
return false;
|
|
else
|
|
return true;
|
|
}
|
|
|
|
static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
|
|
{
|
|
int rfkill_id = (int)(long)data;
|
|
char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
|
|
|
|
if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
|
|
buffer, sizeof(buffer), 0))
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static const struct rfkill_ops hp_wmi_rfkill2_ops = {
|
|
.set_block = hp_wmi_rfkill2_set_block,
|
|
};
|
|
|
|
static int hp_wmi_rfkill2_refresh(void)
|
|
{
|
|
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;
|
|
|
|
for (i = 0; i < rfkill2_count; i++) {
|
|
int num = rfkill2[i].num;
|
|
struct bios_rfkill2_device_state *devstate;
|
|
devstate = &state.device[num];
|
|
|
|
if (num >= state.count ||
|
|
devstate->rfkill_id != rfkill2[i].id) {
|
|
pr_warn("power configuration of the wireless devices unexpectedly changed\n");
|
|
continue;
|
|
}
|
|
|
|
rfkill_set_states(rfkill2[i].rfkill,
|
|
IS_SWBLOCKED(devstate->power),
|
|
IS_HWBLOCKED(devstate->power));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t show_display(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = hp_wmi_display_state();
|
|
if (value < 0)
|
|
return -EINVAL;
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = hp_wmi_hddtemp_state();
|
|
if (value < 0)
|
|
return -EINVAL;
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
static ssize_t show_als(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = hp_wmi_als_state();
|
|
if (value < 0)
|
|
return -EINVAL;
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = hp_wmi_dock_state();
|
|
if (value < 0)
|
|
return -EINVAL;
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = hp_wmi_tablet_state();
|
|
if (value < 0)
|
|
return -EINVAL;
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
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 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 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));
|
|
if (gps_rfkill)
|
|
rfkill_set_states(gps_rfkill,
|
|
hp_wmi_get_sw_state(HPWMI_GPS),
|
|
hp_wmi_get_hw_state(HPWMI_GPS));
|
|
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);
|
|
|
|
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);
|
|
}
|
|
|
|
static int 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;
|
|
|
|
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_wifi_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_gps_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_err;
|
|
}
|
|
|
|
if (wireless & 0x8) {
|
|
gps_rfkill = rfkill_alloc("hp-gps", &device->dev,
|
|
RFKILL_TYPE_GPS,
|
|
&hp_wmi_rfkill_ops,
|
|
(void *) HPWMI_GPS);
|
|
if (!gps_rfkill) {
|
|
err = -ENOMEM;
|
|
goto register_bluetooth_error;
|
|
}
|
|
rfkill_init_sw_state(gps_rfkill,
|
|
hp_wmi_get_sw_state(HPWMI_GPS));
|
|
rfkill_set_hw_state(gps_rfkill,
|
|
hp_wmi_get_hw_state(HPWMI_GPS));
|
|
err = rfkill_register(gps_rfkill);
|
|
if (err)
|
|
goto register_gps_error;
|
|
}
|
|
|
|
return 0;
|
|
register_wwan_err:
|
|
rfkill_destroy(wwan_rfkill);
|
|
wwan_rfkill = NULL;
|
|
if (gps_rfkill)
|
|
rfkill_unregister(gps_rfkill);
|
|
register_gps_error:
|
|
rfkill_destroy(gps_rfkill);
|
|
gps_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 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;
|
|
gps_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;
|
|
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);
|
|
}
|
|
if (gps_rfkill) {
|
|
rfkill_unregister(gps_rfkill);
|
|
rfkill_destroy(gps_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));
|
|
if (gps_rfkill)
|
|
rfkill_set_states(gps_rfkill,
|
|
hp_wmi_get_sw_state(HPWMI_GPS),
|
|
hp_wmi_get_hw_state(HPWMI_GPS));
|
|
|
|
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",
|
|
.owner = THIS_MODULE,
|
|
.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);
|