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-rw-r--r--drivers/platform/x86/thinkpad_acpi.c63
1 files changed, 59 insertions, 4 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index d833ee689f9..c4e4b641d95 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -174,10 +174,12 @@ enum {
/* Debugging */
#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_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
+#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
#define TPACPI_DBG_ALL 0xffff
#define TPACPI_DBG_INIT 0x0001
@@ -2614,6 +2616,15 @@ static bool hotkey_notify_wakeup(const u32 hkey,
*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;
}
@@ -2659,6 +2670,45 @@ static bool hotkey_notify_usrevent(const u32 hkey,
}
}
+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;
+ 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;
@@ -2731,6 +2781,11 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
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) {