diff options
| -rw-r--r-- | Documentation/thinkpad-acpi.txt | 24 | ||||
| -rw-r--r-- | drivers/misc/thinkpad_acpi.c | 91 |
2 files changed, 108 insertions, 7 deletions
diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt index 3fb864733ca1..9d08e472ef74 100644 --- a/Documentation/thinkpad-acpi.txt +++ b/Documentation/thinkpad-acpi.txt @@ -325,6 +325,21 @@ sysfs notes: May return -EPERM (write access locked out by module parameter) or -EACCES (read-only). + wakeup_reason: + Set to 1 if the system is waking up because the user + requested a bay ejection. Set to 2 if the system is + waking up because the user requested the system to + undock. Set to zero for normal wake-ups or wake-ups + due to unknown reasons. + + wakeup_hotunplug_complete: + Set to 1 if the system was waken up because of an + undock or bay ejection request, and that request + was sucessfully completed. At this point, it might + be useful to send the system back to sleep, at the + user's choice. Refer to HKEY events 0x4003 and + 0x3003, below. + input layer notes: A Hot key is mapped to a single input layer EV_KEY event, possibly @@ -475,6 +490,15 @@ Non hot-key ACPI HKEY event map: The above events are not propagated by the driver, except for legacy compatibility purposes when hotkey_report_mode is set to 1. +0x2304 System is waking up from suspend to undock +0x2305 System is waking up from suspend to eject bay +0x2404 System is waking up from hibernation to undock +0x2405 System is waking up from hibernation to eject bay + +The above events are never propagated by the driver. + +0x3003 Bay ejection (see 0x2x05) complete, can sleep again +0x4003 Undocked (see 0x2x04), can sleep again 0x5010 Brightness level changed (newer Lenovo BIOSes) The above events are propagated by the driver. diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index f5f306ae4413..9b0235dc5308 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -1018,6 +1018,14 @@ static unsigned int hotkey_config_change; static struct mutex hotkey_mutex; +static enum { /* Reasons for waking up */ + TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ + TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ + TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ +} hotkey_wakeup_reason; + +static int hotkey_autosleep_ack; + static int hotkey_orig_status; static u32 hotkey_orig_mask; static u32 hotkey_all_mask; @@ -1661,6 +1669,29 @@ static ssize_t hotkey_report_mode_show(struct device *dev, static struct device_attribute dev_attr_hotkey_report_mode = __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); +/* sysfs wakeup reason ------------------------------------------------- */ +static ssize_t hotkey_wakeup_reason_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); +} + +static struct device_attribute dev_attr_hotkey_wakeup_reason = + __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); + +/* sysfs wakeup hotunplug_complete ------------------------------------- */ +static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); +} + +static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = + __ATTR(wakeup_hotunplug_complete, S_IRUGO, + hotkey_wakeup_hotunplug_complete_show, NULL); + /* --------------------------------------------------------------------- */ static struct attribute *hotkey_attributes[] __initdata = { @@ -1683,6 +1714,8 @@ static struct attribute *hotkey_mask_attributes[] __initdata = { &dev_attr_hotkey_all_mask.attr, &dev_attr_hotkey_recommended_mask.attr, #endif + &dev_attr_hotkey_wakeup_reason.attr, + &dev_attr_hotkey_wakeup_hotunplug_complete.attr, }; static int __init hotkey_init(struct ibm_init_struct *iibm) @@ -1822,7 +1855,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) str_supported(tp_features.hotkey)); if (tp_features.hotkey) { - hotkey_dev_attributes = create_attr_set(10, NULL); + hotkey_dev_attributes = create_attr_set(12, NULL); if (!hotkey_dev_attributes) return -ENOMEM; res = add_many_to_attr_set(hotkey_dev_attributes, @@ -2051,6 +2084,48 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) unk_ev = 1; } 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"); + } + break; + case 3: + /* bay-related wakeups */ + if (hkey == 0x3003) { + hotkey_autosleep_ack = 1; + printk(TPACPI_INFO + "bay ejected\n"); + } else { + unk_ev = 1; + } + break; + case 4: + /* dock-related wakeups */ + if (hkey == 0x4003) { + hotkey_autosleep_ack = 1; + printk(TPACPI_INFO + "undocked\n"); + } else { + unk_ev = 1; + } + break; case 5: /* 0x5000-0x5FFF: On screen display helpers */ switch (hkey) { @@ -2075,12 +2150,6 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) } /* fallthrough to default */ default: - /* case 2: dock-related */ - /* 0x2305 - T43 waking up due to bay lever - * eject while aslept */ - /* case 3: ultra-bay related. maybe bay in dock? */ - /* 0x3003 - T43 after wake up by bay lever - * eject (0x2305) */ unk_ev = 1; } if (unk_ev) { @@ -2105,6 +2174,13 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) } } +static void hotkey_suspend(pm_message_t state) +{ + /* Do these on suspend, we get the events on early resume! */ + hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; + hotkey_autosleep_ack = 0; +} + static void hotkey_resume(void) { if (hotkey_mask_get()) @@ -2212,6 +2288,7 @@ static struct ibm_struct hotkey_driver_data = { .write = hotkey_write, .exit = hotkey_exit, .resume = hotkey_resume, + .suspend = hotkey_suspend, .acpi = &ibm_hotkey_acpidriver, }; |