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Commit 79491ca4 authored by Len Brown's avatar Len Brown
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Merge branch 'thinkpad-acpi' into release

parents f1f055f1 aa2fbcec
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Documentation/laptops/thinkpad-acpi.txt
View file @ 79491ca4
ThinkPad ACPI Extras Driver
Version 0.21
May 29th, 2008
Version 0.22
November 23rd, 2008
Borislav Deianov <borislav@users.sf.net>
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
......@@ -16,7 +16,8 @@ supported by the generic Linux ACPI drivers.
This driver used to be named ibm-acpi until kernel 2.6.21 and release
0.13-20070314. It used to be in the drivers/acpi tree, but it was
moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
2.6.22, and release 0.14.
2.6.22, and release 0.14. It was moved to drivers/platform/x86 for
kernel 2.6.29 and release 0.22.
The driver is named "thinkpad-acpi". In some places, like module
names, "thinkpad_acpi" is used because of userspace issues.
......@@ -1412,6 +1413,24 @@ Sysfs notes:
rfkill controller switch "tpacpi_wwan_sw": refer to
Documentation/rfkill.txt for details.
EXPERIMENTAL: UWB
-----------------
This feature is marked EXPERIMENTAL because it has not been extensively
tested and validated in various ThinkPad models yet. The feature may not
work as expected. USE WITH CAUTION! To use this feature, you need to supply
the experimental=1 parameter when loading the module.
sysfs rfkill class: switch "tpacpi_uwb_sw"
This feature exports an rfkill controller for the UWB device, if one is
present and enabled in the BIOS.
Sysfs notes:
rfkill controller switch "tpacpi_uwb_sw": refer to
Documentation/rfkill.txt for details.
Multiple Commands, Module Parameters
------------------------------------
......
drivers/platform/x86/Kconfig
View file @ 79491ca4
......@@ -192,6 +192,17 @@ config THINKPAD_ACPI
If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
config THINKPAD_ACPI_DEBUGFACILITIES
bool "Maintainer debug facilities"
depends on THINKPAD_ACPI
default n
---help---
Enables extra stuff in the thinkpad-acpi which is completely useless
for normal use. Read the driver source to find out what it does.
Say N here, unless you were told by a kernel maintainer to do
otherwise.
config THINKPAD_ACPI_DEBUG
bool "Verbose debug mode"
depends on THINKPAD_ACPI
......
drivers/platform/x86/thinkpad_acpi.c
View file @ 79491ca4
......@@ -21,7 +21,7 @@
* 02110-1301, USA.
*/
#define TPACPI_VERSION "0.21"
#define TPACPI_VERSION "0.22"
#define TPACPI_SYSFS_VERSION 0x020200
/*
......@@ -122,6 +122,27 @@ enum {
#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
#define TPACPI_HKEY_INPUT_VERSION 0x4101
/* ACPI \WGSV commands */
enum {
TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */
TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */
TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */
TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */
};
/* TP_ACPI_WGSV_GET_STATE bits */
enum {
TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */
TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */
TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */
TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */
TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */
TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */
TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */
TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */
TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */
TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */
};
/****************************************************************************
* Main driver
......@@ -148,10 +169,13 @@ enum {
enum {
TPACPI_RFK_BLUETOOTH_SW_ID = 0,
TPACPI_RFK_WWAN_SW_ID,
TPACPI_RFK_UWB_SW_ID,
};
/* Debugging */
#define TPACPI_LOG TPACPI_FILE ": "
#define TPACPI_ALERT KERN_ALERT TPACPI_LOG
#define TPACPI_CRIT KERN_CRIT TPACPI_LOG
#define TPACPI_ERR KERN_ERR TPACPI_LOG
#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
#define TPACPI_INFO KERN_INFO TPACPI_LOG
......@@ -201,6 +225,7 @@ struct ibm_struct {
void (*exit) (void);
void (*resume) (void);
void (*suspend) (pm_message_t state);
void (*shutdown) (void);
struct list_head all_drivers;
......@@ -239,6 +264,7 @@ static struct {
u32 bright_16levels:1;
u32 bright_acpimode:1;
u32 wan:1;
u32 uwb:1;
u32 fan_ctrl_status_undef:1;
u32 input_device_registered:1;
u32 platform_drv_registered:1;
......@@ -288,6 +314,18 @@ struct tpacpi_led_classdev {
unsigned int led;
};
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static int dbg_wlswemul;
static int tpacpi_wlsw_emulstate;
static int dbg_bluetoothemul;
static int tpacpi_bluetooth_emulstate;
static int dbg_wwanemul;
static int tpacpi_wwan_emulstate;
static int dbg_uwbemul;
static int tpacpi_uwb_emulstate;
#endif
/****************************************************************************
****************************************************************************
*
......@@ -728,6 +766,18 @@ static int tpacpi_resume_handler(struct platform_device *pdev)
return 0;
}
static void tpacpi_shutdown_handler(struct platform_device *pdev)
{
struct ibm_struct *ibm, *itmp;
list_for_each_entry_safe(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
if (ibm->shutdown)
(ibm->shutdown)();
}
}
static struct platform_driver tpacpi_pdriver = {
.driver = {
.name = TPACPI_DRVR_NAME,
......@@ -735,6 +785,7 @@ static struct platform_driver tpacpi_pdriver = {
},
.suspend = tpacpi_suspend_handler,
.resume = tpacpi_resume_handler,
.shutdown = tpacpi_shutdown_handler,
};
static struct platform_driver tpacpi_hwmon_pdriver = {
......@@ -922,11 +973,27 @@ static int __init tpacpi_new_rfkill(const unsigned int id,
struct rfkill **rfk,
const enum rfkill_type rfktype,
const char *name,
const bool set_default,
int (*toggle_radio)(void *, enum rfkill_state),
int (*get_state)(void *, enum rfkill_state *))
{
int res;
enum rfkill_state initial_state;
enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED;
res = get_state(NULL, &initial_state);
if (res < 0) {
printk(TPACPI_ERR
"failed to read initial state for %s, error %d; "
"will turn radio off\n", name, res);
} else if (set_default) {
/* try to set the initial state as the default for the rfkill
* type, since we ask the firmware to preserve it across S5 in
* NVRAM */
rfkill_set_default(rfktype,
(initial_state == RFKILL_STATE_UNBLOCKED) ?
RFKILL_STATE_UNBLOCKED :
RFKILL_STATE_SOFT_BLOCKED);
}
*rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype);
if (!*rfk) {
......@@ -938,8 +1005,6 @@ static int __init tpacpi_new_rfkill(const unsigned int id,
(*rfk)->name = name;
(*rfk)->get_state = get_state;
(*rfk)->toggle_radio = toggle_radio;
if (!get_state(NULL, &initial_state))
(*rfk)->state = initial_state;
res = rfkill_register(*rfk);
......@@ -1006,6 +1071,119 @@ static DRIVER_ATTR(version, S_IRUGO,
/* --------------------------------------------------------------------- */
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static void tpacpi_send_radiosw_update(void);
/* wlsw_emulstate ------------------------------------------------------ */
static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate);
}
static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
if (tpacpi_wlsw_emulstate != t) {
tpacpi_wlsw_emulstate = !!t;
tpacpi_send_radiosw_update();
} else
tpacpi_wlsw_emulstate = !!t;
return count;
}
static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO,
tpacpi_driver_wlsw_emulstate_show,
tpacpi_driver_wlsw_emulstate_store);
/* bluetooth_emulstate ------------------------------------------------- */
static ssize_t tpacpi_driver_bluetooth_emulstate_show(
struct device_driver *drv,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate);
}
static ssize_t tpacpi_driver_bluetooth_emulstate_store(
struct device_driver *drv,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_bluetooth_emulstate = !!t;
return count;
}
static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO,
tpacpi_driver_bluetooth_emulstate_show,
tpacpi_driver_bluetooth_emulstate_store);
/* wwan_emulstate ------------------------------------------------- */
static ssize_t tpacpi_driver_wwan_emulstate_show(
struct device_driver *drv,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate);
}
static ssize_t tpacpi_driver_wwan_emulstate_store(
struct device_driver *drv,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_wwan_emulstate = !!t;
return count;
}
static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO,
tpacpi_driver_wwan_emulstate_show,
tpacpi_driver_wwan_emulstate_store);
/* uwb_emulstate ------------------------------------------------- */
static ssize_t tpacpi_driver_uwb_emulstate_show(
struct device_driver *drv,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate);
}
static ssize_t tpacpi_driver_uwb_emulstate_store(
struct device_driver *drv,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_uwb_emulstate = !!t;
return count;
}
static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO,
tpacpi_driver_uwb_emulstate_show,
tpacpi_driver_uwb_emulstate_store);
#endif
/* --------------------------------------------------------------------- */
static struct driver_attribute *tpacpi_driver_attributes[] = {
&driver_attr_debug_level, &driver_attr_version,
&driver_attr_interface_version,
......@@ -1022,6 +1200,17 @@ static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
i++;
}
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (!res && dbg_wlswemul)
res = driver_create_file(drv, &driver_attr_wlsw_emulstate);
if (!res && dbg_bluetoothemul)
res = driver_create_file(drv, &driver_attr_bluetooth_emulstate);
if (!res && dbg_wwanemul)
res = driver_create_file(drv, &driver_attr_wwan_emulstate);
if (!res && dbg_uwbemul)
res = driver_create_file(drv, &driver_attr_uwb_emulstate);
#endif
return res;
}
......@@ -1031,6 +1220,13 @@ static void tpacpi_remove_driver_attributes(struct device_driver *drv)
for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
driver_remove_file(drv, tpacpi_driver_attributes[i]);
#ifdef THINKPAD_ACPI_DEBUGFACILITIES
driver_remove_file(drv, &driver_attr_wlsw_emulstate);
driver_remove_file(drv, &driver_attr_bluetooth_emulstate);
driver_remove_file(drv, &driver_attr_wwan_emulstate);
driver_remove_file(drv, &driver_attr_uwb_emulstate);
#endif
}
/****************************************************************************
......@@ -1216,6 +1412,12 @@ static struct attribute_set *hotkey_dev_attributes;
static int hotkey_get_wlsw(int *status)
{
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wlswemul) {
*status = !!tpacpi_wlsw_emulstate;
return 0;
}
#endif
if (!acpi_evalf(hkey_handle, status, "WLSW", "d"))
return -EIO;
return 0;
......@@ -1678,7 +1880,7 @@ static ssize_t hotkey_mask_show(struct device *dev,
{
int res;
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_mask_get();
mutex_unlock(&hotkey_mutex);
......@@ -1697,7 +1899,7 @@ static ssize_t hotkey_mask_store(struct device *dev,
if (parse_strtoul(buf, 0xffffffffUL, &t))
return -EINVAL;
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_mask_set(t);
......@@ -1783,7 +1985,7 @@ static ssize_t hotkey_source_mask_store(struct device *dev,
((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
return -EINVAL;
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
HOTKEY_CONFIG_CRITICAL_START
......@@ -1818,7 +2020,7 @@ static ssize_t hotkey_poll_freq_store(struct device *dev,
if (parse_strtoul(buf, 25, &t))
return -EINVAL;
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
hotkey_poll_freq = t;
......@@ -1958,6 +2160,7 @@ static struct attribute *hotkey_mask_attributes[] __initdata = {
static void bluetooth_update_rfk(void);
static void wan_update_rfk(void);
static void uwb_update_rfk(void);
static void tpacpi_send_radiosw_update(void)
{
int wlsw;
......@@ -1967,6 +2170,8 @@ static void tpacpi_send_radiosw_update(void)
bluetooth_update_rfk();
if (tp_features.wan)
wan_update_rfk();
if (tp_features.uwb)
uwb_update_rfk();
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
mutex_lock(&tpacpi_inputdev_send_mutex);
......@@ -2222,6 +2427,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
hotkey_source_mask, hotkey_poll_freq);
#endif
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wlswemul) {
tp_features.hotkey_wlsw = 1;
printk(TPACPI_INFO
"radio switch emulation enabled\n");
} else
#endif
/* Not all thinkpads have a hardware radio switch */
if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
tp_features.hotkey_wlsw = 1;
......@@ -2361,13 +2573,154 @@ err_exit:
return (res < 0)? res : 1;
}
static bool hotkey_notify_hotkey(const u32 hkey,
bool *send_acpi_ev,
bool *ignore_acpi_ev)
{
/* 0x1000-0x1FFF: key presses */
unsigned int scancode = hkey & 0xfff;
*send_acpi_ev = true;
*ignore_acpi_ev = false;
if (scancode > 0 && scancode < 0x21) {
scancode--;
if (!(hotkey_source_mask & (1 << scancode))) {
tpacpi_input_send_key(scancode);
*send_acpi_ev = false;
} else {
*ignore_acpi_ev = true;
}
return true;
}
return false;
}
static bool hotkey_notify_wakeup(const u32 hkey,
bool *send_acpi_ev,
bool *ignore_acpi_ev)
{
/* 0x2000-0x2FFF: Wakeup reason */
*send_acpi_ev = true;
*ignore_acpi_ev = false;
switch (hkey) {
case 0x2304: /* suspend, undock */
case 0x2404: /* hibernation, undock */
hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
*ignore_acpi_ev = true;
break;
case 0x2305: /* suspend, bay eject */
case 0x2405: /* hibernation, bay eject */
hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
*ignore_acpi_ev = true;
break;
case 0x2313: /* Battery on critical low level (S3) */
case 0x2413: /* Battery on critical low level (S4) */
printk(TPACPI_ALERT
"EMERGENCY WAKEUP: battery almost empty\n");
/* how to auto-heal: */
/* 2313: woke up from S3, go to S4/S5 */
/* 2413: woke up from S4, go to S5 */
break;
default:
return false;
}
if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
printk(TPACPI_INFO
"woke up due to a hot-unplug "
"request...\n");
hotkey_wakeup_reason_notify_change();
}
return true;
}
static bool hotkey_notify_usrevent(const u32 hkey,
bool *send_acpi_ev,
bool *ignore_acpi_ev)
{
/* 0x5000-0x5FFF: human interface helpers */
*send_acpi_ev = true;
*ignore_acpi_ev = false;
switch (hkey) {
case 0x5010: /* Lenovo new BIOS: brightness changed */
case 0x500b: /* X61t: tablet pen inserted into bay */
case 0x500c: /* X61t: tablet pen removed from bay */
return true;
case 0x5009: /* X41t-X61t: swivel up (tablet mode) */
case 0x500a: /* X41t-X61t: swivel down (normal mode) */
tpacpi_input_send_tabletsw();
hotkey_tablet_mode_notify_change();
*send_acpi_ev = false;
return true;
case 0x5001:
case 0x5002:
/* LID switch events. Do not propagate */
*ignore_acpi_ev = true;
return true;
default:
return false;
}
}
static bool hotkey_notify_thermal(const u32 hkey,
bool *send_acpi_ev,
bool *ignore_acpi_ev)
{
/* 0x6000-0x6FFF: thermal alarms */
*send_acpi_ev = true;
*ignore_acpi_ev = false;
switch (hkey) {
case 0x6011:
printk(TPACPI_CRIT
"THERMAL ALARM: battery is too hot!\n");
/* recommended action: warn user through gui */
return true;
case 0x6012:
printk(TPACPI_ALERT
"THERMAL EMERGENCY: battery is extremely hot!\n");
/* recommended action: immediate sleep/hibernate */
return true;
case 0x6021:
printk(TPACPI_CRIT
"THERMAL ALARM: "
"a sensor reports something is too hot!\n");
/* recommended action: warn user through gui, that */
/* some internal component is too hot */
return true;
case 0x6022:
printk(TPACPI_ALERT
"THERMAL EMERGENCY: "
"a sensor reports something is extremely hot!\n");
/* recommended action: immediate sleep/hibernate */
return true;
case 0x6030:
printk(TPACPI_INFO
"EC reports that Thermal Table has changed\n");
/* recommended action: do nothing, we don't have
* Lenovo ATM information */
return true;
default:
printk(TPACPI_ALERT
"THERMAL ALERT: unknown thermal alarm received\n");
return false;
}
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
unsigned int scancode;
int send_acpi_ev;
int ignore_acpi_ev;
int unk_ev;
bool send_acpi_ev;
bool ignore_acpi_ev;
bool known_ev;
if (event != 0x80) {
printk(TPACPI_ERR
......@@ -2375,7 +2728,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
/* forward it to userspace, maybe it knows how to handle it */
acpi_bus_generate_netlink_event(
ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
dev_name(&ibm->acpi->device->dev),
event, 0);
return;
}
......@@ -2391,107 +2744,72 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
return;
}
send_acpi_ev = 1;
ignore_acpi_ev = 0;
unk_ev = 0;
send_acpi_ev = true;
ignore_acpi_ev = false;
switch (hkey >> 12) {
case 1:
/* 0x1000-0x1FFF: key presses */
scancode = hkey & 0xfff;
if (scancode > 0 && scancode < 0x21) {
scancode--;
if (!(hotkey_source_mask & (1 << scancode))) {
tpacpi_input_send_key(scancode);
send_acpi_ev = 0;
} else {
ignore_acpi_ev = 1;
}
} else {
unk_ev = 1;
}
known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev,
&ignore_acpi_ev);
break;
case 2:
/* Wakeup reason */
switch (hkey) {
case 0x2304: /* suspend, undock */
case 0x2404: /* hibernation, undock */
hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
ignore_acpi_ev = 1;
break;
case 0x2305: /* suspend, bay eject */
case 0x2405: /* hibernation, bay eject */
hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
ignore_acpi_ev = 1;
break;
default:
unk_ev = 1;
}
if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
printk(TPACPI_INFO
"woke up due to a hot-unplug "
"request...\n");
hotkey_wakeup_reason_notify_change();
}
/* 0x2000-0x2FFF: Wakeup reason */
known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev,
&ignore_acpi_ev);
break;
case 3:
/* bay-related wakeups */
/* 0x3000-0x3FFF: bay-related wakeups */
if (hkey == 0x3003) {
hotkey_autosleep_ack = 1;
printk(TPACPI_INFO
"bay ejected\n");
hotkey_wakeup_hotunplug_complete_notify_change();
known_ev = true;
} else {
unk_ev = 1;
known_ev = false;
}
break;
case 4:
/* dock-related wakeups */
/* 0x4000-0x4FFF: dock-related wakeups */
if (hkey == 0x4003) {
hotkey_autosleep_ack = 1;
printk(TPACPI_INFO
"undocked\n");
hotkey_wakeup_hotunplug_complete_notify_change();
known_ev = true;
} else {
unk_ev = 1;
known_ev = false;
}
break;
case 5:
/* 0x5000-0x5FFF: human interface helpers */
switch (hkey) {
case 0x5010: /* Lenovo new BIOS: brightness changed */
case 0x500b: /* X61t: tablet pen inserted into bay */
case 0x500c: /* X61t: tablet pen removed from bay */
known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
&ignore_acpi_ev);
break;
case 0x5009: /* X41t-X61t: swivel up (tablet mode) */
case 0x500a: /* X41t-X61t: swivel down (normal mode) */
tpacpi_input_send_tabletsw();
hotkey_tablet_mode_notify_change();
send_acpi_ev = 0;
break;
case 0x5001:
case 0x5002:
/* LID switch events. Do not propagate */
ignore_acpi_ev = 1;
break;
default:
unk_ev = 1;
}
case 6:
/* 0x6000-0x6FFF: thermal alarms */
known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev,
&ignore_acpi_ev);
break;
case 7:
/* 0x7000-0x7FFF: misc */
if (tp_features.hotkey_wlsw && hkey == 0x7000) {
tpacpi_send_radiosw_update();
send_acpi_ev = 0;
known_ev = true;
break;
}
/* fallthrough to default */
default:
unk_ev = 1;
known_ev = false;
}
if (unk_ev) {
if (!known_ev) {
printk(TPACPI_NOTICE
"unhandled HKEY event 0x%04x\n", hkey);
printk(TPACPI_NOTICE
"please report the conditions when this "
"event happened to %s\n", TPACPI_MAIL);
}
/* Legacy events */
......@@ -2505,7 +2823,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
if (!ignore_acpi_ev && send_acpi_ev) {
acpi_bus_generate_netlink_event(
ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
dev_name(&ibm->acpi->device->dev),
event, hkey);
}
}
......@@ -2544,7 +2862,7 @@ static int hotkey_read(char *p)
return len;
}
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_status_get(&status);
if (!res)
......@@ -2575,7 +2893,7 @@ static int hotkey_write(char *buf)
if (!tp_features.hotkey)
return -ENODEV;
if (mutex_lock_interruptible(&hotkey_mutex))
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
status = -1;
......@@ -2640,11 +2958,28 @@ enum {
/* ACPI GBDC/SBDC bits */
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */
TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume:
off / last state */
};
enum {
/* ACPI \BLTH commands */
TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */
TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */
TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */
TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */
TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */
};
static struct rfkill *tpacpi_bluetooth_rfkill;
static void bluetooth_suspend(pm_message_t state)
{
/* Try to make sure radio will resume powered off */
acpi_evalf(NULL, NULL, "\\BLTH", "vd",
TP_ACPI_BLTH_PWR_OFF_ON_RESUME);
}
static int bluetooth_get_radiosw(void)
{
int status;
......@@ -2656,6 +2991,12 @@ static int bluetooth_get_radiosw(void)
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
return RFKILL_STATE_HARD_BLOCKED;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul)
return (tpacpi_bluetooth_emulstate) ?
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
#endif
if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
return -EIO;
......@@ -2689,12 +3030,20 @@ static int bluetooth_set_radiosw(int radio_on, int update_rfk)
&& radio_on)
return -EPERM;
if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
return -EIO;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul) {
tpacpi_bluetooth_emulstate = !!radio_on;
if (update_rfk)
bluetooth_update_rfk();
return 0;
}
#endif
/* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */
if (radio_on)
status |= TP_ACPI_BLUETOOTH_RADIOSSW;
status = TP_ACPI_BLUETOOTH_RADIOSSW;
else
status &= ~TP_ACPI_BLUETOOTH_RADIOSSW;
status = 0;
if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
return -EIO;
......@@ -2765,8 +3114,19 @@ static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state)
return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
}
static void bluetooth_shutdown(void)
{
/* Order firmware to save current state to NVRAM */
if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
TP_ACPI_BLTH_SAVE_STATE))
printk(TPACPI_NOTICE
"failed to save bluetooth state to NVRAM\n");
}
static void bluetooth_exit(void)
{
bluetooth_shutdown();
if (tpacpi_bluetooth_rfkill)
rfkill_unregister(tpacpi_bluetooth_rfkill);
......@@ -2792,6 +3152,13 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
str_supported(tp_features.bluetooth),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul) {
tp_features.bluetooth = 1;
printk(TPACPI_INFO
"bluetooth switch emulation enabled\n");
} else
#endif
if (tp_features.bluetooth &&
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
/* no bluetooth hardware present in system */
......@@ -2812,6 +3179,7 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
&tpacpi_bluetooth_rfkill,
RFKILL_TYPE_BLUETOOTH,
"tpacpi_bluetooth_sw",
true,
tpacpi_bluetooth_rfk_set,
tpacpi_bluetooth_rfk_get);
if (res) {
......@@ -2864,6 +3232,8 @@ static struct ibm_struct bluetooth_driver_data = {
.read = bluetooth_read,
.write = bluetooth_write,
.exit = bluetooth_exit,
.suspend = bluetooth_suspend,
.shutdown = bluetooth_shutdown,
};
/*************************************************************************
......@@ -2874,11 +3244,19 @@ enum {
/* ACPI GWAN/SWAN bits */
TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */
TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume:
off / last state */
};
static struct rfkill *tpacpi_wan_rfkill;
static void wan_suspend(pm_message_t state)
{
/* Try to make sure radio will resume powered off */
acpi_evalf(NULL, NULL, "\\WGSV", "qvd",
TP_ACPI_WGSV_PWR_OFF_ON_RESUME);
}
static int wan_get_radiosw(void)
{
int status;
......@@ -2890,6 +3268,12 @@ static int wan_get_radiosw(void)
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
return RFKILL_STATE_HARD_BLOCKED;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul)
return (tpacpi_wwan_emulstate) ?
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
#endif
if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
return -EIO;
......@@ -2923,12 +3307,20 @@ static int wan_set_radiosw(int radio_on, int update_rfk)
&& radio_on)
return -EPERM;
if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
return -EIO;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul) {
tpacpi_wwan_emulstate = !!radio_on;
if (update_rfk)
wan_update_rfk();
return 0;
}
#endif
/* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */
if (radio_on)
status |= TP_ACPI_WANCARD_RADIOSSW;
status = TP_ACPI_WANCARD_RADIOSSW;
else
status &= ~TP_ACPI_WANCARD_RADIOSSW;
status = 0;
if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
return -EIO;
......@@ -2999,8 +3391,19 @@ static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state)
return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
}
static void wan_shutdown(void)
{
/* Order firmware to save current state to NVRAM */
if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd",
TP_ACPI_WGSV_SAVE_STATE))
printk(TPACPI_NOTICE
"failed to save WWAN state to NVRAM\n");
}
static void wan_exit(void)
{
wan_shutdown();
if (tpacpi_wan_rfkill)
rfkill_unregister(tpacpi_wan_rfkill);
......@@ -3024,6 +3427,13 @@ static int __init wan_init(struct ibm_init_struct *iibm)
str_supported(tp_features.wan),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul) {
tp_features.wan = 1;
printk(TPACPI_INFO
"wwan switch emulation enabled\n");
} else
#endif
if (tp_features.wan &&
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
/* no wan hardware present in system */
......@@ -3044,6 +3454,7 @@ static int __init wan_init(struct ibm_init_struct *iibm)
&tpacpi_wan_rfkill,
RFKILL_TYPE_WWAN,
"tpacpi_wwan_sw",
true,
tpacpi_wan_rfk_set,
tpacpi_wan_rfk_get);
if (res) {
......@@ -3096,6 +3507,164 @@ static struct ibm_struct wan_driver_data = {
.read = wan_read,
.write = wan_write,
.exit = wan_exit,
.suspend = wan_suspend,
.shutdown = wan_shutdown,
};
/*************************************************************************
* UWB subdriver
*/
enum {
/* ACPI GUWB/SUWB bits */
TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */
TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */
};
static struct rfkill *tpacpi_uwb_rfkill;
static int uwb_get_radiosw(void)
{
int status;
if (!tp_features.uwb)
return -ENODEV;
/* WLSW overrides UWB in firmware/hardware, reflect that */
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
return RFKILL_STATE_HARD_BLOCKED;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul)
return (tpacpi_uwb_emulstate) ?
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
#endif
if (!acpi_evalf(hkey_handle, &status, "GUWB", "d"))
return -EIO;
return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ?
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
}
static void uwb_update_rfk(void)
{
int status;
if (!tpacpi_uwb_rfkill)
return;
status = uwb_get_radiosw();
if (status < 0)
return;
rfkill_force_state(tpacpi_uwb_rfkill, status);
}
static int uwb_set_radiosw(int radio_on, int update_rfk)
{
int status;
if (!tp_features.uwb)
return -ENODEV;
/* WLSW overrides UWB in firmware/hardware, but there is no
* reason to risk weird behaviour. */
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status
&& radio_on)
return -EPERM;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul) {
tpacpi_uwb_emulstate = !!radio_on;
if (update_rfk)
uwb_update_rfk();
return 0;
}
#endif
status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0;
if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status))
return -EIO;
if (update_rfk)
uwb_update_rfk();
return 0;
}
/* --------------------------------------------------------------------- */
static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state)
{
int uwbs = uwb_get_radiosw();
if (uwbs < 0)
return uwbs;
*state = uwbs;
return 0;
}
static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state)
{
return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
}
static void uwb_exit(void)
{
if (tpacpi_uwb_rfkill)
rfkill_unregister(tpacpi_uwb_rfkill);
}
static int __init uwb_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT, "initializing uwb subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.uwb = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GUWB", "qd");
vdbg_printk(TPACPI_DBG_INIT, "uwb is %s, status 0x%02x\n",
str_supported(tp_features.uwb),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul) {
tp_features.uwb = 1;
printk(TPACPI_INFO
"uwb switch emulation enabled\n");
} else
#endif
if (tp_features.uwb &&
!(status & TP_ACPI_UWB_HWPRESENT)) {
/* no uwb hardware present in system */
tp_features.uwb = 0;
dbg_printk(TPACPI_DBG_INIT,
"uwb hardware not installed\n");
}
if (!tp_features.uwb)
return 1;
res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID,
&tpacpi_uwb_rfkill,
RFKILL_TYPE_UWB,
"tpacpi_uwb_sw",
false,
tpacpi_uwb_rfk_set,
tpacpi_uwb_rfk_get);
return res;
}
static struct ibm_struct uwb_driver_data = {
.name = "uwb",
.exit = uwb_exit,
.flags.experimental = 1,
};
/*************************************************************************
......@@ -3724,7 +4293,7 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
}
acpi_bus_generate_proc_event(ibm->acpi->device, event, data);
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
dev_name(&ibm->acpi->device->dev),
event, data);
}
......@@ -3826,7 +4395,7 @@ static void bay_notify(struct ibm_struct *ibm, u32 event)
{
acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
dev_name(&ibm->acpi->device->dev),
event, 0);
}
......@@ -4850,7 +5419,7 @@ static int brightness_set(int value)
value < 0)
return -EINVAL;
res = mutex_lock_interruptible(&brightness_mutex);
res = mutex_lock_killable(&brightness_mutex);
if (res < 0)
return res;
......@@ -5333,6 +5902,60 @@ TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
"JFNS", /* 770x-JL */
); /* all others */
/*
* Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the
* HFSP register at boot, so it contains 0x07 but the Thinkpad could
* be in auto mode (0x80).
*
* This is corrected by any write to HFSP either by the driver, or
* by the firmware.
*
* We assume 0x07 really means auto mode while this quirk is active,
* as this is far more likely than the ThinkPad being in level 7,
* which is only used by the firmware during thermal emergencies.
*/
static void fan_quirk1_detect(void)
{
/* In some ThinkPads, neither the EC nor the ACPI
* DSDT initialize the HFSP register, and it ends up
* being initially set to 0x07 when it *could* be
* either 0x07 or 0x80.
*
* Enable for TP-1Y (T43), TP-78 (R51e),
* TP-76 (R52), TP-70 (T43, R52), which are known
* to be buggy. */
if (fan_control_initial_status == 0x07) {
switch (thinkpad_id.ec_model) {
case 0x5931: /* TP-1Y */
case 0x3837: /* TP-78 */
case 0x3637: /* TP-76 */
case 0x3037: /* TP-70 */
printk(TPACPI_NOTICE
"fan_init: initial fan status is unknown, "
"assuming it is in auto mode\n");
tp_features.fan_ctrl_status_undef = 1;
;;
}
}
}
static void fan_quirk1_handle(u8 *fan_status)
{
if (unlikely(tp_features.fan_ctrl_status_undef)) {
if (*fan_status != fan_control_initial_status) {
/* something changed the HFSP regisnter since
* driver init time, so it is not undefined
* anymore */
tp_features.fan_ctrl_status_undef = 0;
} else {
/* Return most likely status. In fact, it
* might be the only possible status */
*fan_status = TP_EC_FAN_AUTO;
}
}
}
/*
* Call with fan_mutex held
*/
......@@ -5371,8 +5994,10 @@ static int fan_get_status(u8 *status)
if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
return -EIO;
if (likely(status))
if (likely(status)) {
*status = s;
fan_quirk1_handle(status);
}
break;
......@@ -5388,7 +6013,7 @@ static int fan_get_status_safe(u8 *status)
int rc;
u8 s;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = fan_get_status(&s);
if (!rc)
......@@ -5471,7 +6096,7 @@ static int fan_set_level_safe(int level)
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
if (level == TPACPI_FAN_LAST_LEVEL)
......@@ -5493,7 +6118,7 @@ static int fan_set_enable(void)
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
switch (fan_control_access_mode) {
......@@ -5548,7 +6173,7 @@ static int fan_set_disable(void)
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
......@@ -5586,7 +6211,7 @@ static int fan_set_speed(int speed)
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
......@@ -5682,16 +6307,6 @@ static ssize_t fan_pwm1_enable_show(struct device *dev,
if (res)
return res;
if (unlikely(tp_features.fan_ctrl_status_undef)) {
if (status != fan_control_initial_status) {
tp_features.fan_ctrl_status_undef = 0;
} else {
/* Return most likely status. In fact, it
* might be the only possible status */
status = TP_EC_FAN_AUTO;
}
}
if (status & TP_EC_FAN_FULLSPEED) {
mode = 0;
} else if (status & TP_EC_FAN_AUTO) {
......@@ -5756,14 +6371,6 @@ static ssize_t fan_pwm1_show(struct device *dev,
if (res)
return res;
if (unlikely(tp_features.fan_ctrl_status_undef)) {
if (status != fan_control_initial_status) {
tp_features.fan_ctrl_status_undef = 0;
} else {
status = TP_EC_FAN_AUTO;
}
}
if ((status &
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
status = fan_control_desired_level;
......@@ -5788,7 +6395,7 @@ static ssize_t fan_pwm1_store(struct device *dev,
/* scale down from 0-255 to 0-7 */
newlevel = (s >> 5) & 0x07;
if (mutex_lock_interruptible(&fan_mutex))
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = fan_get_status(&status);
......@@ -5895,29 +6502,7 @@ static int __init fan_init(struct ibm_init_struct *iibm)
if (likely(acpi_ec_read(fan_status_offset,
&fan_control_initial_status))) {
fan_status_access_mode = TPACPI_FAN_RD_TPEC;
/* In some ThinkPads, neither the EC nor the ACPI
* DSDT initialize the fan status, and it ends up
* being set to 0x07 when it *could* be either
* 0x07 or 0x80.
*
* Enable for TP-1Y (T43), TP-78 (R51e),
* TP-76 (R52), TP-70 (T43, R52), which are known
* to be buggy. */
if (fan_control_initial_status == 0x07) {
switch (thinkpad_id.ec_model) {
case 0x5931: /* TP-1Y */
case 0x3837: /* TP-78 */
case 0x3637: /* TP-76 */
case 0x3037: /* TP-70 */
printk(TPACPI_NOTICE
"fan_init: initial fan status "
"is unknown, assuming it is "
"in auto mode\n");
tp_features.fan_ctrl_status_undef = 1;
;;
}
}
fan_quirk1_detect();
} else {
printk(TPACPI_ERR
"ThinkPad ACPI EC access misbehaving, "
......@@ -6106,15 +6691,6 @@ static int fan_read(char *p)
if (rc < 0)
return rc;
if (unlikely(tp_features.fan_ctrl_status_undef)) {
if (status != fan_control_initial_status)
tp_features.fan_ctrl_status_undef = 0;
else
/* Return most likely status. In fact, it
* might be the only possible status */
status = TP_EC_FAN_AUTO;
}
len += sprintf(p + len, "status:\t\t%s\n",
(status != 0) ? "enabled" : "disabled");
......@@ -6563,6 +7139,10 @@ static struct ibm_init_struct ibms_init[] __initdata = {
.init = wan_init,
.data = &wan_driver_data,
},
{
.init = uwb_init,
.data = &uwb_driver_data,
},
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
{
.init = video_init,
......@@ -6701,6 +7281,32 @@ TPACPI_PARAM(brightness);
TPACPI_PARAM(volume);
TPACPI_PARAM(fan);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
module_param(dbg_wlswemul, uint, 0);
MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
MODULE_PARM_DESC(wlsw_state,
"Initial state of the emulated WLSW switch");
module_param(dbg_bluetoothemul, uint, 0);
MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
MODULE_PARM_DESC(bluetooth_state,
"Initial state of the emulated bluetooth switch");
module_param(dbg_wwanemul, uint, 0);
MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
MODULE_PARM_DESC(wwan_state,
"Initial state of the emulated WWAN switch");
module_param(dbg_uwbemul, uint, 0);
MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
MODULE_PARM_DESC(uwb_state,
"Initial state of the emulated UWB switch");
#endif
static void thinkpad_acpi_module_exit(void)
{
struct ibm_struct *ibm, *itmp;
......
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