*
*
* Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
- * Copyright (C) 2006-2008 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
+ * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
*
* 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
* 02110-1301, USA.
*/
-#define TPACPI_VERSION "0.21"
-#define TPACPI_SYSFS_VERSION 0x020200
+#define TPACPI_VERSION "0.22"
+#define TPACPI_SYSFS_VERSION 0x020300
/*
* Changelog:
#include <linux/string.h>
#include <linux/list.h>
#include <linux/mutex.h>
+#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/delay.h>
enum {
TPACPI_RFK_BLUETOOTH_SW_ID = 0,
TPACPI_RFK_WWAN_SW_ID,
+ TPACPI_RFK_UWB_SW_ID,
};
-/* Debugging */
+/* printk headers */
#define TPACPI_LOG TPACPI_FILE ": "
-#define TPACPI_ERR KERN_ERR TPACPI_LOG
-#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
-#define TPACPI_INFO KERN_INFO TPACPI_LOG
-#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
-
+#define TPACPI_EMERG KERN_EMERG TPACPI_LOG
+#define TPACPI_ALERT KERN_ALERT TPACPI_LOG
+#define TPACPI_CRIT KERN_CRIT TPACPI_LOG
+#define TPACPI_ERR KERN_ERR TPACPI_LOG
+#define TPACPI_WARN KERN_WARNING TPACPI_LOG
+#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
+#define TPACPI_INFO KERN_INFO TPACPI_LOG
+#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
+
+/* Debugging printk groups */
#define TPACPI_DBG_ALL 0xffff
+#define TPACPI_DBG_DISCLOSETASK 0x8000
#define TPACPI_DBG_INIT 0x0001
#define TPACPI_DBG_EXIT 0x0002
-#define dbg_printk(a_dbg_level, format, arg...) \
- do { if (dbg_level & a_dbg_level) \
- printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \
- } while (0)
-#ifdef CONFIG_THINKPAD_ACPI_DEBUG
-#define vdbg_printk(a_dbg_level, format, arg...) \
- dbg_printk(a_dbg_level, format, ## arg)
-static const char *str_supported(int is_supported);
-#else
-#define vdbg_printk(a_dbg_level, format, arg...)
-#endif
+#define TPACPI_DBG_RFKILL 0x0004
+#define TPACPI_DBG_HKEY 0x0008
+#define TPACPI_DBG_FAN 0x0010
+#define TPACPI_DBG_BRGHT 0x0020
#define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
#define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
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;
static struct {
u16 hotkey_mask_ff:1;
- u16 bright_cmos_ec_unsync:1;
} tp_warned;
struct thinkpad_id_data {
static int tpacpi_bluetooth_emulstate;
static int dbg_wwanemul;
static int tpacpi_wwan_emulstate;
+static int dbg_uwbemul;
+static int tpacpi_uwb_emulstate;
#endif
+/*************************************************************************
+ * Debugging helpers
+ */
+
+#define dbg_printk(a_dbg_level, format, arg...) \
+ do { if (dbg_level & (a_dbg_level)) \
+ printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \
+ } while (0)
+
+#ifdef CONFIG_THINKPAD_ACPI_DEBUG
+#define vdbg_printk dbg_printk
+static const char *str_supported(int is_supported);
+#else
+#define vdbg_printk(a_dbg_level, format, arg...) \
+ do { } while (0)
+#endif
+
+static void tpacpi_log_usertask(const char * const what)
+{
+ printk(TPACPI_DEBUG "%s: access by process with PID %d\n",
+ what, task_tgid_vnr(current));
+}
+
+#define tpacpi_disclose_usertask(what, format, arg...) \
+ do { \
+ if (unlikely( \
+ (dbg_level & TPACPI_DBG_DISCLOSETASK) && \
+ (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \
+ printk(TPACPI_DEBUG "%s: PID %d: " format, \
+ what, task_tgid_vnr(current), ## arg); \
+ } \
+ } while (0)
+
/****************************************************************************
****************************************************************************
*
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 *))
{
printk(TPACPI_ERR
"failed to read initial state for %s, error %d; "
"will turn radio off\n", name, res);
- } else {
+ } 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,
+ if (rfkill_set_default(rfktype,
(initial_state == RFKILL_STATE_UNBLOCKED) ?
RFKILL_STATE_UNBLOCKED :
- RFKILL_STATE_SOFT_BLOCKED);
+ RFKILL_STATE_SOFT_BLOCKED) == -EPERM)
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "Default state for %s cannot be changed\n",
+ name);
}
*rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype);
return 0;
}
+static void printk_deprecated_attribute(const char * const what,
+ const char * const details)
+{
+ tpacpi_log_usertask("deprecated sysfs attribute");
+ printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and "
+ "will be removed. %s\n",
+ what, details);
+}
+
+static void printk_deprecated_rfkill_attribute(const char * const what)
+{
+ printk_deprecated_attribute(what,
+ "Please switch to generic rfkill before year 2010");
+}
+
/*************************************************************************
* thinkpad-acpi driver attributes
*/
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
/* --------------------------------------------------------------------- */
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;
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
}
static int hotkey_autosleep_ack;
-static int hotkey_orig_status;
static u32 hotkey_orig_mask;
static u32 hotkey_all_mask;
static u32 hotkey_reserved_mask;
return 0;
}
-static int hotkey_status_set(int status)
+static int hotkey_status_set(bool enable)
{
- if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status))
+ if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0))
return -EIO;
return 0;
{
int res, status;
+ printk_deprecated_attribute("hotkey_enable",
+ "Hotkey reporting is always enabled");
+
res = hotkey_status_get(&status);
if (res)
return res;
const char *buf, size_t count)
{
unsigned long t;
- int res;
+
+ printk_deprecated_attribute("hotkey_enable",
+ "Hotkeys can be disabled through hotkey_mask");
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
- res = hotkey_status_set(t);
+ if (t == 0)
+ return -EPERM;
- return (res) ? res : count;
+ return count;
}
static struct device_attribute dev_attr_hotkey_enable =
{
int res;
- if (mutex_lock_interruptible(&hotkey_mutex))
+ if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_mask_get();
mutex_unlock(&hotkey_mutex);
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);
mutex_unlock(&hotkey_mutex);
+ tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t);
+
return (res) ? res : count;
}
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status);
+ return sprintf(buf, "0\n");
}
static struct device_attribute dev_attr_hotkey_bios_enabled =
((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
mutex_unlock(&hotkey_mutex);
+ tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t);
+
return count;
}
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;
hotkey_poll_setup(1);
mutex_unlock(&hotkey_mutex);
+ tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t);
+
return count;
}
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;
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);
kfree(hotkey_keycode_map);
if (tp_features.hotkey) {
- dbg_printk(TPACPI_DBG_EXIT,
+ dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY,
"restoring original hot key mask\n");
/* no short-circuit boolean operator below! */
if ((hotkey_mask_set(hotkey_orig_mask) |
- hotkey_status_set(hotkey_orig_status)) != 0)
+ hotkey_status_set(false)) != 0)
printk(TPACPI_ERR
"failed to restore hot key mask "
"to BIOS defaults\n");
int status;
int hkeyv;
- vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "initializing hotkey subdriver\n");
BUG_ON(!tpacpi_inputdev);
BUG_ON(tpacpi_inputdev->open != NULL ||
/* hotkey not supported on 570 */
tp_features.hotkey = hkey_handle != NULL;
- vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "hotkeys are %s\n",
str_supported(tp_features.hotkey));
if (!tp_features.hotkey)
* T4x, X31, and later
*/
tp_features.hotkey_mask = 1;
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "firmware HKEY interface version: 0x%x\n",
+ hkeyv);
}
}
- vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
if (tp_features.hotkey_mask) {
/* hotkey_source_mask *must* be zero for
* the first hotkey_mask_get */
- res = hotkey_status_get(&hotkey_orig_status);
- if (res)
- goto err_exit;
-
if (tp_features.hotkey_mask) {
res = hotkey_mask_get();
if (res)
hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK;
}
- vdbg_printk(TPACPI_DBG_INIT,
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"hotkey source mask 0x%08x, polling freq %d\n",
hotkey_source_mask, hotkey_poll_freq);
#endif
}
if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"using Lenovo default hot key map\n");
memcpy(hotkey_keycode_map, &lenovo_keycode_map,
TPACPI_HOTKEY_MAP_SIZE);
} else {
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"using IBM default hot key map\n");
memcpy(hotkey_keycode_map, &ibm_keycode_map,
TPACPI_HOTKEY_MAP_SIZE);
| (1 << TP_ACPI_HOTKEYSCAN_FNEND);
}
- dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n");
- res = hotkey_status_set(1);
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "enabling firmware HKEY event interface...\n");
+ res = hotkey_status_set(true);
if (res) {
hotkey_exit();
return res;
return res;
}
- dbg_printk(TPACPI_DBG_INIT,
- "legacy hot key reporting over procfs %s\n",
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+ "legacy ibm/hotkey event reporting over procfs %s\n",
(hotkey_report_mode < 2) ?
"enabled" : "disabled");
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
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 */
- 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;
- }
+ known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
+ &ignore_acpi_ev);
+ break;
+ 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 */
return len;
}
- if (mutex_lock_interruptible(&hotkey_mutex))
+ if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_status_get(&status);
if (!res)
return len;
}
+static void hotkey_enabledisable_warn(void)
+{
+ tpacpi_log_usertask("procfs hotkey enable/disable");
+ WARN(1, TPACPI_WARN
+ "hotkey enable/disable functionality has been "
+ "removed from the driver. Hotkeys are always enabled.\n");
+}
+
static int hotkey_write(char *buf)
{
- int res, status;
+ int res;
u32 mask;
char *cmd;
if (!tp_features.hotkey)
return -ENODEV;
- if (mutex_lock_interruptible(&hotkey_mutex))
+ if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
- status = -1;
mask = hotkey_mask;
res = 0;
while ((cmd = next_cmd(&buf))) {
if (strlencmp(cmd, "enable") == 0) {
- status = 1;
+ hotkey_enabledisable_warn();
} else if (strlencmp(cmd, "disable") == 0) {
- status = 0;
+ hotkey_enabledisable_warn();
+ res = -EPERM;
} else if (strlencmp(cmd, "reset") == 0) {
- status = hotkey_orig_status;
mask = hotkey_orig_mask;
} else if (sscanf(cmd, "0x%x", &mask) == 1) {
/* mask set */
goto errexit;
}
}
- if (status != -1)
- res = hotkey_status_set(status);
+
+ if (!res)
+ tpacpi_disclose_usertask("procfs hotkey",
+ "set mask to 0x%08x\n", mask);
if (!res && mask != hotkey_mask)
res = hotkey_mask_set(mask);
TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */
};
+#define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw"
+
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);
+ if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
+ TP_ACPI_BLTH_PWR_OFF_ON_RESUME))
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "bluetooth power down on resume request failed\n");
}
static int bluetooth_get_radiosw(void)
if (status < 0)
return;
rfkill_force_state(tpacpi_bluetooth_rfkill, status);
+
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "forced rfkill state to %d\n",
+ status);
}
static int bluetooth_set_radiosw(int radio_on, int update_rfk)
&& radio_on)
return -EPERM;
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "will %s bluetooth\n", radio_on ? "enable" : "disable");
+
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul) {
tpacpi_bluetooth_emulstate = !!radio_on;
{
int status;
+ printk_deprecated_rfkill_attribute("bluetooth_enable");
+
status = bluetooth_get_radiosw();
if (status < 0)
return status;
unsigned long t;
int res;
+ printk_deprecated_rfkill_attribute("bluetooth_enable");
+
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
+ tpacpi_disclose_usertask("bluetooth_enable", "set to %ld\n", t);
+
res = bluetooth_set_radiosw(t, 1);
return (res) ? res : count;
static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state)
{
+ dbg_printk(TPACPI_DBG_RFKILL,
+ "request to change radio state to %d\n", state);
return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
}
TP_ACPI_BLTH_SAVE_STATE))
printk(TPACPI_NOTICE
"failed to save bluetooth state to NVRAM\n");
+ else
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "bluestooth state saved to NVRAM\n");
}
static void bluetooth_exit(void)
int res;
int status = 0;
- vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
+ "initializing bluetooth subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.bluetooth = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GBDC", "qd");
- vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
+ "bluetooth is %s, status 0x%02x\n",
str_supported(tp_features.bluetooth),
status);
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
/* no bluetooth hardware present in system */
tp_features.bluetooth = 0;
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"bluetooth hardware not installed\n");
}
res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID,
&tpacpi_bluetooth_rfkill,
RFKILL_TYPE_BLUETOOTH,
- "tpacpi_bluetooth_sw",
+ TPACPI_RFK_BLUETOOTH_SW_NAME,
+ true,
tpacpi_bluetooth_rfk_set,
tpacpi_bluetooth_rfk_get);
if (res) {
static int bluetooth_write(char *buf)
{
char *cmd;
+ int state = -1;
if (!tp_features.bluetooth)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
if (strlencmp(cmd, "enable") == 0) {
- bluetooth_set_radiosw(1, 1);
+ state = 1;
} else if (strlencmp(cmd, "disable") == 0) {
- bluetooth_set_radiosw(0, 1);
+ state = 0;
} else
return -EINVAL;
}
+ if (state != -1) {
+ tpacpi_disclose_usertask("procfs bluetooth",
+ "attempt to %s\n",
+ state ? "enable" : "disable");
+ bluetooth_set_radiosw(state, 1);
+ }
+
return 0;
}
off / last state */
};
+#define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw"
+
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);
+ if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd",
+ TP_ACPI_WGSV_PWR_OFF_ON_RESUME))
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "WWAN power down on resume request failed\n");
}
static int wan_get_radiosw(void)
if (status < 0)
return;
rfkill_force_state(tpacpi_wan_rfkill, status);
+
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "forced rfkill state to %d\n",
+ status);
}
static int wan_set_radiosw(int radio_on, int update_rfk)
&& radio_on)
return -EPERM;
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "will %s WWAN\n", radio_on ? "enable" : "disable");
+
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul) {
tpacpi_wwan_emulstate = !!radio_on;
{
int status;
+ printk_deprecated_rfkill_attribute("wwan_enable");
+
status = wan_get_radiosw();
if (status < 0)
return status;
unsigned long t;
int res;
+ printk_deprecated_rfkill_attribute("wwan_enable");
+
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
+ tpacpi_disclose_usertask("wwan_enable", "set to %ld\n", t);
+
res = wan_set_radiosw(t, 1);
return (res) ? res : count;
static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state)
{
+ dbg_printk(TPACPI_DBG_RFKILL,
+ "request to change radio state to %d\n", state);
return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
}
TP_ACPI_WGSV_SAVE_STATE))
printk(TPACPI_NOTICE
"failed to save WWAN state to NVRAM\n");
+ else
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "WWAN state saved to NVRAM\n");
}
static void wan_exit(void)
int res;
int status = 0;
- vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
+ "initializing wan subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.wan = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GWAN", "qd");
- vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
+ "wan is %s, status 0x%02x\n",
str_supported(tp_features.wan),
status);
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
/* no wan hardware present in system */
tp_features.wan = 0;
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"wan hardware not installed\n");
}
res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID,
&tpacpi_wan_rfkill,
RFKILL_TYPE_WWAN,
- "tpacpi_wwan_sw",
+ TPACPI_RFK_WWAN_SW_NAME,
+ true,
tpacpi_wan_rfk_set,
tpacpi_wan_rfk_get);
if (res) {
int len = 0;
int status = wan_get_radiosw();
+ tpacpi_disclose_usertask("procfs wan", "read");
+
if (!tp_features.wan)
len += sprintf(p + len, "status:\t\tnot supported\n");
else {
static int wan_write(char *buf)
{
char *cmd;
+ int state = -1;
if (!tp_features.wan)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
if (strlencmp(cmd, "enable") == 0) {
- wan_set_radiosw(1, 1);
+ state = 1;
} else if (strlencmp(cmd, "disable") == 0) {
- wan_set_radiosw(0, 1);
+ state = 0;
} else
return -EINVAL;
}
+ if (state != -1) {
+ tpacpi_disclose_usertask("procfs wan",
+ "attempt to %s\n",
+ state ? "enable" : "disable");
+ wan_set_radiosw(state, 1);
+ }
+
return 0;
}
.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 */
+};
+
+#define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw"
+
+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);
+
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "forced rfkill state to %d\n",
+ 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;
+
+ vdbg_printk(TPACPI_DBG_RFKILL,
+ "will %s UWB\n", radio_on ? "enable" : "disable");
+
+#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)
+{
+ dbg_printk(TPACPI_DBG_RFKILL,
+ "request to change radio state to %d\n", 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 | TPACPI_DBG_RFKILL,
+ "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 | TPACPI_DBG_RFKILL,
+ "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_RFK_UWB_SW_NAME,
+ 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,
+};
+
/*************************************************************************
* Video subdriver
*/
"tpacpi::unknown_led",
"tpacpi::standby",
};
+#define TPACPI_SAFE_LEDS 0x0081U
+
+static inline bool tpacpi_is_led_restricted(const unsigned int led)
+{
+#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
+ return false;
+#else
+ return (TPACPI_SAFE_LEDS & (1 << led)) == 0;
+#endif
+}
static int led_get_status(const unsigned int led)
{
switch (led_supported) {
case TPACPI_LED_570:
/* 570 */
- if (led > 7)
+ if (unlikely(led > 7))
return -EINVAL;
+ if (unlikely(tpacpi_is_led_restricted(led)))
+ return -EPERM;
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
(1 << led), led_sled_arg1[ledstatus]))
rc = -EIO;
break;
case TPACPI_LED_OLD:
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
- if (led > 7)
+ if (unlikely(led > 7))
return -EINVAL;
+ if (unlikely(tpacpi_is_led_restricted(led)))
+ return -EPERM;
rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led));
if (rc >= 0)
rc = ec_write(TPACPI_LED_EC_HLBL,
break;
case TPACPI_LED_NEW:
/* all others */
+ if (unlikely(led >= TPACPI_LED_NUMLEDS))
+ return -EINVAL;
+ if (unlikely(tpacpi_is_led_restricted(led)))
+ return -EPERM;
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
led, led_led_arg1[ledstatus]))
rc = -EIO;
kfree(tpacpi_leds);
}
+static int __init tpacpi_init_led(unsigned int led)
+{
+ int rc;
+
+ tpacpi_leds[led].led = led;
+
+ tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set;
+ tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set;
+ if (led_supported == TPACPI_LED_570)
+ tpacpi_leds[led].led_classdev.brightness_get =
+ &led_sysfs_get;
+
+ tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led];
+
+ INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker);
+
+ rc = led_classdev_register(&tpacpi_pdev->dev,
+ &tpacpi_leds[led].led_classdev);
+ if (rc < 0)
+ tpacpi_leds[led].led_classdev.name = NULL;
+
+ return rc;
+}
+
static int __init led_init(struct ibm_init_struct *iibm)
{
unsigned int i;
}
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
- tpacpi_leds[i].led = i;
-
- tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set;
- tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set;
- if (led_supported == TPACPI_LED_570)
- tpacpi_leds[i].led_classdev.brightness_get =
- &led_sysfs_get;
-
- tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i];
-
- INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker);
-
- rc = led_classdev_register(&tpacpi_pdev->dev,
- &tpacpi_leds[i].led_classdev);
- if (rc < 0) {
- tpacpi_leds[i].led_classdev.name = NULL;
- led_exit();
- return rc;
+ if (!tpacpi_is_led_restricted(i)) {
+ rc = tpacpi_init_led(i);
+ if (rc < 0) {
+ led_exit();
+ return rc;
+ }
}
}
+#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
+ if (led_supported != TPACPI_LED_NONE)
+ printk(TPACPI_NOTICE
+ "warning: userspace override of important "
+ "firmware LEDs is enabled\n");
+#endif
return (led_supported != TPACPI_LED_NONE)? 0 : 1;
}
#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
+/*
+ * ThinkPads can read brightness from two places: EC HBRV (0x31), or
+ * CMOS NVRAM byte 0x5E, bits 0-3.
+ *
+ * EC HBRV (0x31) has the following layout
+ * Bit 7: unknown function
+ * Bit 6: unknown function
+ * Bit 5: Z: honour scale changes, NZ: ignore scale changes
+ * Bit 4: must be set to zero to avoid problems
+ * Bit 3-0: backlight brightness level
+ *
+ * brightness_get_raw returns status data in the HBRV layout
+ */
+
enum {
TP_EC_BACKLIGHT = 0x31,
TP_EC_BACKLIGHT_MAPSW = 0x20,
};
+enum tpacpi_brightness_access_mode {
+ TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */
+ TPACPI_BRGHT_MODE_EC, /* EC control */
+ TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */
+ TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */
+ TPACPI_BRGHT_MODE_MAX
+};
+
static struct backlight_device *ibm_backlight_device;
-static int brightness_mode;
+
+static enum tpacpi_brightness_access_mode brightness_mode =
+ TPACPI_BRGHT_MODE_MAX;
+
static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
static struct mutex brightness_mutex;
-/*
- * ThinkPads can read brightness from two places: EC 0x31, or
- * CMOS NVRAM byte 0x5E, bits 0-3.
- *
- * EC 0x31 has the following layout
- * Bit 7: unknown function
- * Bit 6: unknown function
- * Bit 5: Z: honour scale changes, NZ: ignore scale changes
- * Bit 4: must be set to zero to avoid problems
- * Bit 3-0: backlight brightness level
- *
- * brightness_get_raw returns status data in the EC 0x31 layout
- */
-static int brightness_get_raw(int *status)
+/* NVRAM brightness access,
+ * call with brightness_mutex held! */
+static unsigned int tpacpi_brightness_nvram_get(void)
{
- u8 lec = 0, lcmos = 0, level = 0;
+ u8 lnvram;
- if (brightness_mode & 1) {
- if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec))
- return -EIO;
- level = lec & TP_EC_BACKLIGHT_LVLMSK;
- };
- if (brightness_mode & 2) {
- lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
- & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
- >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
- lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07;
- level = lcmos;
- }
-
- if (brightness_mode == 3) {
- *status = lec; /* Prefer EC, CMOS is just a backing store */
- lec &= TP_EC_BACKLIGHT_LVLMSK;
- if (lec == lcmos)
- tp_warned.bright_cmos_ec_unsync = 0;
- else {
- if (!tp_warned.bright_cmos_ec_unsync) {
- printk(TPACPI_ERR
- "CMOS NVRAM (%u) and EC (%u) do not "
- "agree on display brightness level\n",
- (unsigned int) lcmos,
- (unsigned int) lec);
- tp_warned.bright_cmos_ec_unsync = 1;
- }
+ lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
+ & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
+ >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
+ lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07;
+
+ return lnvram;
+}
+
+static void tpacpi_brightness_checkpoint_nvram(void)
+{
+ u8 lec = 0;
+ u8 b_nvram;
+
+ if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM)
+ return;
+
+ vdbg_printk(TPACPI_DBG_BRGHT,
+ "trying to checkpoint backlight level to NVRAM...\n");
+
+ if (mutex_lock_killable(&brightness_mutex) < 0)
+ return;
+
+ if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
+ goto unlock;
+ lec &= TP_EC_BACKLIGHT_LVLMSK;
+ b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
+
+ if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
+ >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) {
+ /* NVRAM needs update */
+ b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS <<
+ TP_NVRAM_POS_LEVEL_BRIGHTNESS);
+ b_nvram |= lec;
+ nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
+ dbg_printk(TPACPI_DBG_BRGHT,
+ "updated NVRAM backlight level to %u (0x%02x)\n",
+ (unsigned int) lec, (unsigned int) b_nvram);
+ } else
+ vdbg_printk(TPACPI_DBG_BRGHT,
+ "NVRAM backlight level already is %u (0x%02x)\n",
+ (unsigned int) lec, (unsigned int) b_nvram);
+
+unlock:
+ mutex_unlock(&brightness_mutex);
+}
+
+
+/* call with brightness_mutex held! */
+static int tpacpi_brightness_get_raw(int *status)
+{
+ u8 lec = 0;
+
+ switch (brightness_mode) {
+ case TPACPI_BRGHT_MODE_UCMS_STEP:
+ *status = tpacpi_brightness_nvram_get();
+ return 0;
+ case TPACPI_BRGHT_MODE_EC:
+ case TPACPI_BRGHT_MODE_ECNVRAM:
+ if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
return -EIO;
- }
- } else {
- *status = level;
+ *status = lec;
+ return 0;
+ default:
+ return -ENXIO;
}
+}
+
+/* call with brightness_mutex held! */
+/* do NOT call with illegal backlight level value */
+static int tpacpi_brightness_set_ec(unsigned int value)
+{
+ u8 lec = 0;
+
+ if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
+ return -EIO;
+
+ if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT,
+ (lec & TP_EC_BACKLIGHT_CMDMSK) |
+ (value & TP_EC_BACKLIGHT_LVLMSK))))
+ return -EIO;
+
+ return 0;
+}
+
+/* call with brightness_mutex held! */
+static int tpacpi_brightness_set_ucmsstep(unsigned int value)
+{
+ int cmos_cmd, inc;
+ unsigned int current_value, i;
+
+ current_value = tpacpi_brightness_nvram_get();
+
+ if (value == current_value)
+ return 0;
+
+ cmos_cmd = (value > current_value) ?
+ TP_CMOS_BRIGHTNESS_UP :
+ TP_CMOS_BRIGHTNESS_DOWN;
+ inc = (value > current_value) ? 1 : -1;
+
+ for (i = current_value; i != value; i += inc)
+ if (issue_thinkpad_cmos_command(cmos_cmd))
+ return -EIO;
return 0;
}
/* May return EINTR which can always be mapped to ERESTARTSYS */
-static int brightness_set(int value)
+static int brightness_set(unsigned int value)
{
- int cmos_cmd, inc, i, res;
- int current_value;
- int command_bits;
+ int res;
if (value > ((tp_features.bright_16levels)? 15 : 7) ||
value < 0)
return -EINVAL;
- res = mutex_lock_interruptible(&brightness_mutex);
- if (res < 0)
- return res;
+ vdbg_printk(TPACPI_DBG_BRGHT,
+ "set backlight level to %d\n", value);
- res = brightness_get_raw(¤t_value);
+ res = mutex_lock_killable(&brightness_mutex);
if (res < 0)
- goto errout;
-
- command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK;
- current_value &= TP_EC_BACKLIGHT_LVLMSK;
-
- cmos_cmd = value > current_value ?
- TP_CMOS_BRIGHTNESS_UP :
- TP_CMOS_BRIGHTNESS_DOWN;
- inc = (value > current_value)? 1 : -1;
+ return res;
- res = 0;
- for (i = current_value; i != value; i += inc) {
- if ((brightness_mode & 2) &&
- issue_thinkpad_cmos_command(cmos_cmd)) {
- res = -EIO;
- goto errout;
- }
- if ((brightness_mode & 1) &&
- !acpi_ec_write(TP_EC_BACKLIGHT,
- (i + inc) | command_bits)) {
- res = -EIO;
- goto errout;;
- }
+ switch (brightness_mode) {
+ case TPACPI_BRGHT_MODE_EC:
+ case TPACPI_BRGHT_MODE_ECNVRAM:
+ res = tpacpi_brightness_set_ec(value);
+ break;
+ case TPACPI_BRGHT_MODE_UCMS_STEP:
+ res = tpacpi_brightness_set_ucmsstep(value);
+ break;
+ default:
+ res = -ENXIO;
}
-errout:
mutex_unlock(&brightness_mutex);
return res;
}
static int brightness_update_status(struct backlight_device *bd)
{
- /* it is the backlight class's job (caller) to handle
- * EINTR and other errors properly */
- return brightness_set(
+ unsigned int level =
(bd->props.fb_blank == FB_BLANK_UNBLANK &&
bd->props.power == FB_BLANK_UNBLANK) ?
- bd->props.brightness : 0);
+ bd->props.brightness : 0;
+
+ dbg_printk(TPACPI_DBG_BRGHT,
+ "backlight: attempt to set level to %d\n",
+ level);
+
+ /* it is the backlight class's job (caller) to handle
+ * EINTR and other errors properly */
+ return brightness_set(level);
}
static int brightness_get(struct backlight_device *bd)
{
int status, res;
- res = brightness_get_raw(&status);
+ res = mutex_lock_killable(&brightness_mutex);
if (res < 0)
- return 0; /* FIXME: teach backlight about error handling */
+ return 0;
+
+ res = tpacpi_brightness_get_raw(&status);
+
+ mutex_unlock(&brightness_mutex);
+
+ if (res < 0)
+ return 0;
return status & TP_EC_BACKLIGHT_LVLMSK;
}
}
if (!brightness_enable) {
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
"brightness support disabled by "
"module parameter\n");
return 1;
if (b == 16)
tp_features.bright_16levels = 1;
- if (!brightness_mode) {
- if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO)
- brightness_mode = 2;
- else
- brightness_mode = 3;
+ /*
+ * Check for module parameter bogosity, note that we
+ * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
+ * able to detect "unspecified"
+ */
+ if (brightness_mode > TPACPI_BRGHT_MODE_MAX)
+ return -EINVAL;
- dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n",
- brightness_mode);
- }
+ /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */
+ if (brightness_mode == TPACPI_BRGHT_MODE_AUTO ||
+ brightness_mode == TPACPI_BRGHT_MODE_MAX) {
+ if (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) {
+ /*
+ * IBM models that define HBRV probably have
+ * EC-based backlight level control
+ */
+ if (acpi_evalf(ec_handle, NULL, "HBRV", "qd"))
+ /* T40-T43, R50-R52, R50e, R51e, X31-X41 */
+ brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
+ else
+ /* all other IBM ThinkPads */
+ brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
+ } else
+ /* All Lenovo ThinkPads */
+ brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
- if (brightness_mode > 3)
- return -EINVAL;
+ dbg_printk(TPACPI_DBG_BRGHT,
+ "selected brightness_mode=%d\n",
+ brightness_mode);
+ }
- if (brightness_get_raw(&b) < 0)
+ if (tpacpi_brightness_get_raw(&b) < 0)
return 1;
if (tp_features.bright_16levels)
printk(TPACPI_ERR "Could not register backlight device\n");
return PTR_ERR(ibm_backlight_device);
}
- vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
+ "brightness is supported\n");
ibm_backlight_device->props.max_brightness =
(tp_features.bright_16levels)? 15 : 7;
return 0;
}
+static void brightness_suspend(pm_message_t state)
+{
+ tpacpi_brightness_checkpoint_nvram();
+}
+
+static void brightness_shutdown(void)
+{
+ tpacpi_brightness_checkpoint_nvram();
+}
+
static void brightness_exit(void)
{
if (ibm_backlight_device) {
- vdbg_printk(TPACPI_DBG_EXIT,
+ vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT,
"calling backlight_device_unregister()\n");
backlight_device_unregister(ibm_backlight_device);
}
+
+ tpacpi_brightness_checkpoint_nvram();
}
static int brightness_read(char *p)
return -EINVAL;
}
+ tpacpi_disclose_usertask("procfs brightness",
+ "set level to %d\n", level);
+
/*
* Now we know what the final level should be, so we try to set it.
* Doing it this way makes the syscall restartable in case of EINTR
.read = brightness_read,
.write = brightness_write,
.exit = brightness_exit,
+ .suspend = brightness_suspend,
+ .shutdown = brightness_shutdown,
};
/*************************************************************************
"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
*/
if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
return -EIO;
- if (likely(status))
+ if (likely(status)) {
*status = s;
+ fan_quirk1_handle(status);
+ }
break;
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)
default:
return -ENXIO;
}
+
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0x%02x\n", level);
return 0;
}
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)
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) {
}
mutex_unlock(&fan_mutex);
+
+ if (!rc)
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0x%02x\n",
+ s);
return rc;
}
if (!fan_control_allowed)
return -EPERM;
- if (mutex_lock_interruptible(&fan_mutex))
+ if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
rc = -ENXIO;
}
+ if (!rc)
+ vdbg_printk(TPACPI_DBG_FAN,
+ "fan control: set fan control register to 0\n");
mutex_unlock(&fan_mutex);
return rc;
if (!fan_control_allowed)
return -EPERM;
- if (mutex_lock_interruptible(&fan_mutex))
+ if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
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) {
if (parse_strtoul(buf, 2, &t))
return -EINVAL;
+ tpacpi_disclose_usertask("hwmon pwm1_enable",
+ "set fan mode to %lu\n", t);
+
switch (t) {
case 0:
level = TP_EC_FAN_FULLSPEED;
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;
if (parse_strtoul(buf, 255, &s))
return -EINVAL;
+ tpacpi_disclose_usertask("hwmon pwm1",
+ "set fan speed to %lu\n", s);
+
/* 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);
fan_watchdog_maxinterval = t;
fan_watchdog_reset();
+ tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t);
+
return count;
}
{
int rc;
- vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n");
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
+ "initializing fan subdriver\n");
mutex_init(&fan_mutex);
fan_status_access_mode = TPACPI_FAN_NONE;
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, "
}
}
- vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n",
+ vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
+ "fan is %s, modes %d, %d\n",
str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
fan_control_access_mode != TPACPI_FAN_WR_NONE),
fan_status_access_mode, fan_control_access_mode);
if (!fan_control_allowed) {
fan_control_access_mode = TPACPI_FAN_WR_NONE;
fan_control_commands = 0;
- dbg_printk(TPACPI_DBG_INIT,
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"fan control features disabled by parameter\n");
}
static void fan_exit(void)
{
- vdbg_printk(TPACPI_DBG_EXIT,
+ vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN,
"cancelling any pending fan watchdog tasks\n");
/* FIXME: can we really do this unconditionally? */
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");
if (*rc == -ENXIO)
printk(TPACPI_ERR "level command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan",
+ "set level to %d\n", level);
return 1;
}
if (*rc == -ENXIO)
printk(TPACPI_ERR "enable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan", "enable\n");
return 1;
}
if (*rc == -ENXIO)
printk(TPACPI_ERR "disable command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan", "disable\n");
return 1;
}
if (*rc == -ENXIO)
printk(TPACPI_ERR "speed command accepted for unsupported "
"access mode %d", fan_control_access_mode);
+ else if (!*rc)
+ tpacpi_disclose_usertask("procfs fan",
+ "set speed to %d\n", speed);
return 1;
}
if (interval < 0 || interval > 120)
*rc = -EINVAL;
- else
+ else {
fan_watchdog_maxinterval = interval;
+ tpacpi_disclose_usertask("procfs fan",
+ "set watchdog timer to %d\n",
+ interval);
+ }
return 1;
}
.init = wan_init,
.data = &wan_driver_data,
},
+ {
+ .init = uwb_init,
+ .data = &uwb_driver_data,
+ },
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
{
.init = video_init,
MODULE_PARM_DESC(fan_control,
"Enables setting fan parameters features when true");
-module_param_named(brightness_mode, brightness_mode, int, 0);
+module_param_named(brightness_mode, brightness_mode, uint, 0);
MODULE_PARM_DESC(brightness_mode,
"Selects brightness control strategy: "
- "0=auto, 1=EC, 2=CMOS, 3=both");
+ "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM");
module_param(brightness_enable, uint, 0);
MODULE_PARM_DESC(brightness_enable,
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)
return 0;
}
-/* Please remove this in year 2009 */
-MODULE_ALIAS("ibm_acpi");
-
MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
/*
* if it is not there yet.
*/
#define IBM_BIOS_MODULE_ALIAS(__type) \
- MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
+ MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
/* Non-ancient thinkpads */
MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
/* Ancient thinkpad BIOSes have to be identified by
* BIOS type or model number, and there are far less
* BIOS types than model numbers... */
-IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]");
-IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");
-IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
+IBM_BIOS_MODULE_ALIAS("I[BDHIMNOTWVYZ]");
+IBM_BIOS_MODULE_ALIAS("1[0368A-GIKM-PST]");
+IBM_BIOS_MODULE_ALIAS("K[UX-Z]");
MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
MODULE_DESCRIPTION(TPACPI_DESC);
projects / linux-2.6-omap-h63xx.git / blobdiff