* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (77 commits)
ACPI: Populate /sys/firmware/acpi/tables/
ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE
ACPI: update ACPI proc I/F removal schedule
ACPI: update feature-removal-schedule.txt, /sys/firmware/acpi/namespace is gone
ACPI: export ACPI events via acpi_mc_group multicast group
ACPI: fix empty macros found by -Wextra
ACPI: drivers/acpi/pci_link.c: lower printk severity
sony-laptop: Fix event reading in sony-laptop
sony-laptop: Add Vaio FE to the special init sequence
sony-laptop: Make the driver use MSC_SCAN and a setkeycode and getkeycode key table.
sony-laptop: Invoke _INI for SNC devices that provide it
sony-laptop: Add support for recent Vaios Fn keys (C series for now)
sony-laptop: map wireless switch events to KEY_WLAN
sony-laptop: add new SNC handlers
ACPI: thinkpad-acpi: add locking to brightness subdriver
ACPI: thinkpad-acpi: bump up version to 0.15
ACPI: thinkpad-acpi: make EC-based thermal readings non-experimental
ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128
ACPI: thinkpad-acpi: react to Lenovo ThinkPad differences in hot key
ACPI: thinkpad-acpi: allow use of CMOS NVRAM for brightness control
...
---------------------------
-What: /sys/firmware/acpi/namespace
-When: 2.6.21
-Why: The ACPI namespace is effectively the symbol list for
- the BIOS. The device names are completely arbitrary
- and have no place being exposed to user-space.
-
- For those interested in the BIOS ACPI namespace,
- the BIOS can be extracted and disassembled with acpidump
- and iasl as documented in the pmtools package here:
- http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils
-Who: Len Brown <len.brown@intel.com>
-
----------------------------
-
What: ACPI procfs interface
-When: July 2007
-Why: After ACPI sysfs conversion, ACPI attributes will be duplicated
- in sysfs and the ACPI procfs interface should be removed.
+When: July 2008
+Why: ACPI sysfs conversion should be finished by January 2008.
+ ACPI procfs interface will be removed in July 2008 so that
+ there is enough time for the user space to catch up.
Who: Zhang Rui <rui.zhang@intel.com>
---------------------------
ThinkPad ACPI Extras Driver
- Version 0.14
- April 21st, 2007
+ Version 0.15
+ July 1st, 2007
Borislav Deianov <borislav@users.sf.net>
- Henrique de Moraes Holschuh <hmh@hmh.eng.br>
- http://ibm-acpi.sf.net/
+ Henrique de Moraes Holschuh <hmh@hmh.eng.br>
+ http://ibm-acpi.sf.net/
This is a Linux driver for the IBM and Lenovo ThinkPad laptops. It
subsystems are not documented here, nor are they tracked by this
attribute.
+Changes to the thinkpad-acpi sysfs interface are only considered
+non-experimental when they are submitted to Linux mainline, at which
+point the changes in this interface are documented and interface_version
+may be updated. If you are using any thinkpad-acpi features not yet
+sent to mainline for merging, you do so on your own risk: these features
+may disappear, or be implemented in a different and incompatible way by
+the time they are merged in Linux mainline.
+
+Changes that are backwards-compatible by nature (e.g. the addition of
+attributes that do not change the way the other attributes work) do not
+always warrant an update of interface_version. Therefore, one must
+expect that an attribute might not be there, and deal with it properly
+(an attribute not being there *is* a valid way to make it clear that a
+feature is not available in sysfs).
+
Hot keys
--------
procfs: /proc/acpi/ibm/hotkey
sysfs device attribute: hotkey_*
-Without this driver, only the Fn-F4 key (sleep button) generates an
-ACPI event. With the driver loaded, the hotkey feature enabled and the
-mask set (see below), the various hot keys generate ACPI events in the
+In a ThinkPad, the ACPI HKEY handler is responsible for comunicating
+some important events and also keyboard hot key presses to the operating
+system. Enabling the hotkey functionality of thinkpad-acpi signals the
+firmware that such a driver is present, and modifies how the ThinkPad
+firmware will behave in many situations.
+
+When the hotkey feature is enabled and the hot key mask is set (see
+below), the various hot keys either generate ACPI events in the
following format:
ibm/hotkey HKEY 00000080 0000xxxx
-The last four digits vary depending on the key combination pressed.
-All labeled Fn-Fx key combinations generate distinct events. In
-addition, the lid microswitch and some docking station buttons may
-also generate such events.
-
-The bit mask allows some control over which hot keys generate ACPI
-events. Not all bits in the mask can be modified. Not all bits that
-can be modified do anything. Not all hot keys can be individually
-controlled by the mask. Most recent ThinkPad models honor the
-following bits (assuming the hot keys feature has been enabled):
-
- key bit behavior when set behavior when unset
-
- Fn-F3 always generates ACPI event
- Fn-F4 always generates ACPI event
- Fn-F5 0010 generate ACPI event enable/disable Bluetooth
- Fn-F7 0040 generate ACPI event switch LCD and external display
- Fn-F8 0080 generate ACPI event expand screen or none
- Fn-F9 0100 generate ACPI event none
- Fn-F12 always generates ACPI event
-
-Some models do not support all of the above. For example, the T30 does
-not support Fn-F5 and Fn-F9. Other models do not support the mask at
-all. On those models, hot keys cannot be controlled individually.
-
-Note that enabling ACPI events for some keys prevents their default
-behavior. For example, if events for Fn-F5 are enabled, that key will
-no longer enable/disable Bluetooth by itself. This can still be done
-from an acpid handler for the ibm/hotkey event.
-
-Note also that not all Fn key combinations are supported through
-ACPI. For example, on the X40, the brightness, volume and "Access IBM"
-buttons do not generate ACPI events even with this driver. They *can*
-be used through the "ThinkPad Buttons" utility, see
-http://www.nongnu.org/tpb/
+or events over the input layer. The input layer support accepts the
+standard IOCTLs to remap the keycodes assigned to each hotkey.
+
+When the input device is open, the driver will suppress any ACPI hot key
+events that get translated into a meaningful input layer event, in order
+to avoid sending duplicate events to userspace. Hot keys that are
+mapped to KEY_RESERVED in the keymap are not translated, and will always
+generate an ACPI ibm/hotkey HKEY event, and no input layer events.
+
+The hot key bit mask allows some control over which hot keys generate
+events. If a key is "masked" (bit set to 0 in the mask), the firmware
+will handle it. If it is "unmasked", it signals the firmware that
+thinkpad-acpi would prefer to handle it, if the firmware would be so
+kind to allow it (and it often doesn't!).
+
+Not all bits in the mask can be modified. Not all bits that can be
+modified do anything. Not all hot keys can be individually controlled
+by the mask. Some models do not support the mask at all, and in those
+models, hot keys cannot be controlled individually. The behaviour of
+the mask is, therefore, higly dependent on the ThinkPad model.
+
+Note that unmasking some keys prevents their default behavior. For
+example, if Fn+F5 is unmasked, that key will no longer enable/disable
+Bluetooth by itself.
+
+Note also that not all Fn key combinations are supported through ACPI.
+For example, on the X40, the brightness, volume and "Access IBM" buttons
+do not generate ACPI events even with this driver. They *can* be used
+through the "ThinkPad Buttons" utility, see http://www.nongnu.org/tpb/
procfs notes:
echo enable > /proc/acpi/ibm/hotkey -- enable the hot keys feature
echo disable > /proc/acpi/ibm/hotkey -- disable the hot keys feature
- echo 0xffff > /proc/acpi/ibm/hotkey -- enable all possible hot keys
- echo 0x0000 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
- ... any other 4-hex-digit mask ...
+ echo 0xffffffff > /proc/acpi/ibm/hotkey -- enable all hot keys
+ echo 0 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
+ ... any other 8-hex-digit mask ...
echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
sysfs notes:
key feature status will be restored to this value.
0: hot keys were disabled
- 1: hot keys were enabled
+ 1: hot keys were enabled (unusual)
hotkey_bios_mask:
Returns the hot keys mask when thinkpad-acpi was loaded.
1: enables the hot keys feature / feature enabled
hotkey_mask:
- bit mask to enable ACPI event generation for each hot
- key (see above). Returns the current status of the hot
- keys mask, and allows one to modify it.
+ bit mask to enable driver-handling and ACPI event
+ generation for each hot key (see above). Returns the
+ current status of the hot keys mask, and allows one to
+ modify it.
+
+ hotkey_all_mask:
+ bit mask that should enable event reporting for all
+ supported hot keys, when echoed to hotkey_mask above.
+ Unless you know which events need to be handled
+ passively (because the firmware *will* handle them
+ anyway), do *not* use hotkey_all_mask. Use
+ hotkey_recommended_mask, instead. You have been warned.
+
+ hotkey_recommended_mask:
+ bit mask that should enable event reporting for all
+ supported hot keys, except those which are always
+ handled by the firmware anyway. Echo it to
+ hotkey_mask above, to use.
+
+ hotkey_radio_sw:
+ if the ThinkPad has a hardware radio switch, this
+ attribute will read 0 if the switch is in the "radios
+ disabled" postition, and 1 if the switch is in the
+ "radios enabled" position.
+
+input layer notes:
+
+A Hot key is mapped to a single input layer EV_KEY event, possibly
+followed by an EV_MSC MSC_SCAN event that shall contain that key's scan
+code. An EV_SYN event will always be generated to mark the end of the
+event block.
+
+Do not use the EV_MSC MSC_SCAN events to process keys. They are to be
+used as a helper to remap keys, only. They are particularly useful when
+remapping KEY_UNKNOWN keys.
+
+The events are available in an input device, with the following id:
+
+ Bus: BUS_HOST
+ vendor: 0x1014 (PCI_VENDOR_ID_IBM) or
+ 0x17aa (PCI_VENDOR_ID_LENOVO)
+ product: 0x5054 ("TP")
+ version: 0x4101
+
+The version will have its LSB incremented if the keymap changes in a
+backwards-compatible way. The MSB shall always be 0x41 for this input
+device. If the MSB is not 0x41, do not use the device as described in
+this section, as it is either something else (e.g. another input device
+exported by a thinkpad driver, such as HDAPS) or its functionality has
+been changed in a non-backwards compatible way.
+
+Adding other event types for other functionalities shall be considered a
+backwards-compatible change for this input device.
+
+Thinkpad-acpi Hot Key event map (version 0x4101):
+
+ACPI Scan
+event code Key Notes
+
+0x1001 0x00 FN+F1 -
+0x1002 0x01 FN+F2 IBM: battery (rare)
+ Lenovo: Screen lock
+
+0x1003 0x02 FN+F3 Many IBM models always report
+ this hot key, even with hot keys
+ disabled or with Fn+F3 masked
+ off
+ IBM: screen lock
+ Lenovo: battery
+
+0x1004 0x03 FN+F4 Sleep button (ACPI sleep button
+ semanthics, i.e. sleep-to-RAM).
+ It is always generate some kind
+ of event, either the hot key
+ event or a ACPI sleep button
+ event. The firmware may
+ refuse to generate further FN+F4
+ key presses until a S3 or S4 ACPI
+ sleep cycle is performed or some
+ time passes.
+
+0x1005 0x04 FN+F5 Radio. Enables/disables
+ the internal BlueTooth hardware
+ and W-WAN card if left in control
+ of the firmware. Does not affect
+ the WLAN card.
+ Should be used to turn on/off all
+ radios (bluetooth+W-WAN+WLAN),
+ really.
+
+0x1006 0x05 FN+F6 -
+
+0x1007 0x06 FN+F7 Video output cycle.
+ Do you feel lucky today?
+
+0x1008 0x07 FN+F8 IBM: toggle screen expand
+ Lenovo: configure ultranav
+
+0x1009 0x08 FN+F9 -
+ .. .. ..
+0x100B 0x0A FN+F11 -
+
+0x100C 0x0B FN+F12 Sleep to disk. You are always
+ supposed to handle it yourself,
+ either through the ACPI event,
+ or through a hotkey event.
+ The firmware may refuse to
+ generate further FN+F4 key
+ press events until a S3 or S4
+ ACPI sleep cycle is performed,
+ or some time passes.
+
+0x100D 0x0C FN+BACKSPACE -
+0x100E 0x0D FN+INSERT -
+0x100F 0x0E FN+DELETE -
+
+0x1010 0x0F FN+HOME Brightness up. This key is
+ always handled by the firmware
+ in IBM ThinkPads, even when
+ unmasked. Just leave it alone.
+ For Lenovo ThinkPads with a new
+ BIOS, it has to be handled either
+ by the ACPI OSI, or by userspace.
+0x1011 0x10 FN+END Brightness down. See brightness
+ up for details.
+
+0x1012 0x11 FN+PGUP Thinklight toggle. This key is
+ always handled by the firmware,
+ even when unmasked.
+
+0x1013 0x12 FN+PGDOWN -
+
+0x1014 0x13 FN+SPACE Zoom key
+
+0x1015 0x14 VOLUME UP Internal mixer volume up. This
+ key is always handled by the
+ firmware, even when unmasked.
+ NOTE: Lenovo seems to be changing
+ this.
+0x1016 0x15 VOLUME DOWN Internal mixer volume up. This
+ key is always handled by the
+ firmware, even when unmasked.
+ NOTE: Lenovo seems to be changing
+ this.
+0x1017 0x16 MUTE Mute internal mixer. This
+ key is always handled by the
+ firmware, even when unmasked.
+
+0x1018 0x17 THINKPAD Thinkpad/Access IBM/Lenovo key
+
+0x1019 0x18 unknown
+.. .. ..
+0x1020 0x1F unknown
+
+The ThinkPad firmware does not allow one to differentiate when most hot
+keys are pressed or released (either that, or we don't know how to, yet).
+For these keys, the driver generates a set of events for a key press and
+immediately issues the same set of events for a key release. It is
+unknown by the driver if the ThinkPad firmware triggered these events on
+hot key press or release, but the firmware will do it for either one, not
+both.
+
+If a key is mapped to KEY_RESERVED, it generates no input events at all,
+and it may generate a legacy thinkpad-acpi ACPI hotkey event.
+
+If a key is mapped to KEY_UNKNOWN, it generates an input event that
+includes an scan code, and it may also generate a legacy thinkpad-acpi
+ACPI hotkey event.
+
+If a key is mapped to anything else, it will only generate legacy
+thinkpad-acpi ACPI hotkey events if nobody has opened the input device.
+
+Non hot-key ACPI HKEY event map:
+0x5001 Lid closed
+0x5002 Lid opened
+0x7000 Radio Switch may have changed state
Bluetooth
procfs: /proc/acpi/ibm/cmos
sysfs device attribute: cmos_command
-This feature is used internally by the ACPI firmware to control the
-ThinkLight on most newer ThinkPad models. It may also control LCD
-brightness, sounds volume and more, but only on some models.
+This feature is mostly used internally by the ACPI firmware to keep the legacy
+CMOS NVRAM bits in sync with the current machine state, and to record this
+state so that the ThinkPad will retain such settings across reboots.
+
+Some of these commands actually perform actions in some ThinkPad models, but
+this is expected to disappear more and more in newer models. As an example, in
+a T43 and in a X40, commands 12 and 13 still control the ThinkLight state for
+real, but commands 0 to 2 don't control the mixer anymore (they have been
+phased out) and just update the NVRAM.
The range of valid cmos command numbers is 0 to 21, but not all have an
effect and the behavior varies from model to model. Here is the behavior
on the X40 (tpb is the ThinkPad Buttons utility):
- 0 - no effect but tpb reports "Volume down"
- 1 - no effect but tpb reports "Volume up"
- 2 - no effect but tpb reports "Mute on"
- 3 - simulate pressing the "Access IBM" button
- 4 - LCD brightness up
- 5 - LCD brightness down
- 11 - toggle screen expansion
- 12 - ThinkLight on
- 13 - ThinkLight off
- 14 - no effect but tpb reports ThinkLight status change
+ 0 - Related to "Volume down" key press
+ 1 - Related to "Volume up" key press
+ 2 - Related to "Mute on" key press
+ 3 - Related to "Access IBM" key press
+ 4 - Related to "LCD brightness up" key pess
+ 5 - Related to "LCD brightness down" key press
+ 11 - Related to "toggle screen expansion" key press/function
+ 12 - Related to "ThinkLight on"
+ 13 - Related to "ThinkLight off"
+ 14 - Related to "ThinkLight" key press (toggle thinklight)
The cmos command interface is prone to firmware split-brain problems, as
-in newer ThinkPads it is just a compatibility layer.
+in newer ThinkPads it is just a compatibility layer. Do not use it, it is
+exported just as a debug tool.
LED control -- /proc/acpi/ibm/led
---------------------------------
procfs: /proc/acpi/ibm/thermal
sysfs device attributes: (hwmon) temp*_input
-Most ThinkPads include six or more separate temperature sensors but
-only expose the CPU temperature through the standard ACPI methods.
-This feature shows readings from up to eight different sensors on older
-ThinkPads, and it has experimental support for up to sixteen different
-sensors on newer ThinkPads.
-
-EXPERIMENTAL: The 16-sensors feature is marked EXPERIMENTAL because the
-implementation directly accesses hardware registers and may not work as
-expected. USE WITH CAUTION! To use this feature, you need to supply the
-experimental=1 parameter when loading the module. When EXPERIMENTAL
-mode is enabled, reading the first 8 sensors on newer ThinkPads will
-also use an new experimental thermal sensor access mode.
+Most ThinkPads include six or more separate temperature sensors but only
+expose the CPU temperature through the standard ACPI methods. This
+feature shows readings from up to eight different sensors on older
+ThinkPads, and up to sixteen different sensors on newer ThinkPads.
For example, on the X40, a typical output may be:
temperatures: 42 42 45 41 36 -128 33 -128
-EXPERIMENTAL: On the T43/p, a typical output may be:
+On the T43/p, a typical output may be:
temperatures: 48 48 36 52 38 -128 31 -128 48 52 48 -128 -128 -128 -128 -128
The mapping of thermal sensors to physical locations varies depending on
2: System board, left side (near PCMCIA slot), reported as HDAPS temp
3: PCMCIA slot
9: MCH (northbridge) to DRAM Bus
-10: ICH (southbridge), under Mini-PCI card, under touchpad
+10: Clock-generator, mini-pci card and ICH (southbridge), under Mini-PCI
+ card, under touchpad
11: Power regulator, underside of system board, below F2 key
The A31 has a very atypical layout for the thermal sensors
The backlight control has eight levels, ranging from 0 to 7. Some of the
levels may not be distinct.
+There are two interfaces to the firmware for brightness control, EC and CMOS.
+To select which one should be used, use the brightness_mode module parameter:
+brightness_mode=1 selects EC mode, brightness_mode=2 selects CMOS mode,
+brightness_mode=3 selects both EC and CMOS. The driver tries to autodetect
+which interface to use.
+
Procfs notes:
The available commands are:
0x000100: Initial sysfs support, as a single platform driver and
device.
+0x000200: Hot key support for 32 hot keys, and radio slider switch
+ support.
+0x010000: Hot keys are now handled by default over the input
+ layer, the radio switch generates input event EV_RADIO,
+ and the driver enables hot key handling by default in
+ the firmware.
S: Supported
ACPI BATTERY DRIVERS
-P: Vladimir P. Lebedev
-M: vladimir.p.lebedev@intel.com
+P: Alexey Starikovskiy
+M: astarikovskiy@suse.de
L: linux-acpi@vger.kernel.org
W: http://acpi.sourceforge.net/
S: Supported
ACPI EC DRIVER
P: Alexey Starikovskiy
-M: alexey.y.starikovskiy@linux.intel.com
+M: astarikovskiy@suse.de
L: linux-acpi@vger.kernel.org
W: http://acpi.sourceforge.net/
S: Supported
DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
},
},
- {
- .callback = force_acpi_ht,
- .ident = "DELL GX240",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"),
- DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"),
- },
- },
{
.callback = force_acpi_ht,
.ident = "HP VISUALIZE NT Workstation",
data->max_freq = perf->states[0].core_frequency * 1000;
/* table init */
for (i=0; i<perf->state_count; i++) {
- if (i>0 && perf->states[i].core_frequency ==
- perf->states[i-1].core_frequency)
+ if (i>0 && perf->states[i].core_frequency >=
+ data->freq_table[valid_states-1].frequency / 1000)
continue;
data->freq_table[valid_states].index = i;
# ACPI Configuration
#
-menu "ACPI (Advanced Configuration and Power Interface) Support"
+menuconfig ACPI
+ bool "ACPI Support (Advanced Configuration and Power Interface) Support"
depends on !X86_NUMAQ
depends on !X86_VISWS
depends on !IA64_HP_SIM
depends on IA64 || X86
- depends on PM
-
-config ACPI
- bool "ACPI Support"
- depends on IA64 || X86
depends on PCI
depends on PM
select PNP
config ACPI_SLEEP
bool "Sleep States"
depends on X86 && (!SMP || SUSPEND_SMP)
- depends on PM
default y
---help---
This option adds support for ACPI suspend states.
config ACPI_PROCFS
bool "Procfs interface (deprecated)"
- depends on ACPI
default y
---help---
The Procfs interface for ACPI is made optional for backward compatibility.
config ACPI_VIDEO
tristate "Video"
- depends on X86 && BACKLIGHT_CLASS_DEVICE
+ depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
help
This driver implement the ACPI Extensions For Display Adapters
for integrated graphics devices on motherboard, as specified in
of verbosity. Saying Y enables these statements. This will increase
your kernel size by around 50K.
+config ACPI_DEBUG_FUNC_TRACE
+ bool "Additionally enable ACPI function tracing"
+ default n
+ depends on ACPI_DEBUG
+ help
+ ACPI Debug Statements slow down ACPI processing. Function trace
+ is about half of the penalty and is rarely useful.
+
config ACPI_EC
bool
default y
config ACPI_HOTPLUG_MEMORY
tristate "Memory Hotplug"
- depends on ACPI
depends on MEMORY_HOTPLUG
default n
help
to today's ACPI "Control Method" battery.
endif # ACPI
-
-endmenu
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_BATTERY_HID "PNP0C0A"
#define ACPI_BATTERY_DEVICE_NAME "Battery"
-#define ACPI_BATTERY_FILE_INFO "info"
-#define ACPI_BATTERY_FILE_STATUS "state"
-#define ACPI_BATTERY_FILE_ALARM "alarm"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
#define ACPI_BATTERY_NOTIFY_INFO 0x81
#define ACPI_BATTERY_UNITS_WATTS "mW"
#define ACPI_BATTERY_UNITS_AMPS "mA"
#define _COMPONENT ACPI_BATTERY_COMPONENT
+
+#define ACPI_BATTERY_UPDATE_TIME 0
+
+#define ACPI_BATTERY_NONE_UPDATE 0
+#define ACPI_BATTERY_EASY_UPDATE 1
+#define ACPI_BATTERY_INIT_UPDATE 2
+
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
+static unsigned int update_time = ACPI_BATTERY_UPDATE_TIME;
+
+/* 0 - every time, > 0 - by update_time */
+module_param(update_time, uint, 0644);
+
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
},
};
-struct acpi_battery_status {
+struct acpi_battery_state {
acpi_integer state;
acpi_integer present_rate;
acpi_integer remaining_capacity;
acpi_string oem_info;
};
-struct acpi_battery_flags {
- u8 present:1; /* Bay occupied? */
- u8 power_unit:1; /* 0=watts, 1=apms */
- u8 alarm:1; /* _BTP present? */
- u8 reserved:5;
+enum acpi_battery_files{
+ ACPI_BATTERY_INFO = 0,
+ ACPI_BATTERY_STATE,
+ ACPI_BATTERY_ALARM,
+ ACPI_BATTERY_NUMFILES,
};
-struct acpi_battery_trips {
- unsigned long warning;
- unsigned long low;
+struct acpi_battery_flags {
+ u8 battery_present_prev;
+ u8 alarm_present;
+ u8 init_update;
+ u8 update[ACPI_BATTERY_NUMFILES];
+ u8 power_unit;
};
struct acpi_battery {
- struct acpi_device * device;
+ struct mutex mutex;
+ struct acpi_device *device;
struct acpi_battery_flags flags;
- struct acpi_battery_trips trips;
+ struct acpi_buffer bif_data;
+ struct acpi_buffer bst_data;
unsigned long alarm;
- struct acpi_battery_info *info;
+ unsigned long update_time[ACPI_BATTERY_NUMFILES];
};
+inline int acpi_battery_present(struct acpi_battery *battery)
+{
+ return battery->device->status.battery_present;
+}
+inline char *acpi_battery_power_units(struct acpi_battery *battery)
+{
+ if (battery->flags.power_unit)
+ return ACPI_BATTERY_UNITS_AMPS;
+ else
+ return ACPI_BATTERY_UNITS_WATTS;
+}
+
+inline acpi_handle acpi_battery_handle(struct acpi_battery *battery)
+{
+ return battery->device->handle;
+}
+
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
-static int
-acpi_battery_get_info(struct acpi_battery *battery,
- struct acpi_battery_info **bif)
+static void acpi_battery_check_result(struct acpi_battery *battery, int result)
+{
+ if (!battery)
+ return;
+
+ if (result) {
+ battery->flags.init_update = 1;
+ }
+}
+
+static int acpi_battery_extract_package(struct acpi_battery *battery,
+ union acpi_object *package,
+ struct acpi_buffer *format,
+ struct acpi_buffer *data,
+ char *package_name)
+{
+ acpi_status status = AE_OK;
+ struct acpi_buffer data_null = { 0, NULL };
+
+ status = acpi_extract_package(package, format, &data_null);
+ if (status != AE_BUFFER_OVERFLOW) {
+ ACPI_EXCEPTION((AE_INFO, status, "Extracting size %s",
+ package_name));
+ return -ENODEV;
+ }
+
+ if (data_null.length != data->length) {
+ kfree(data->pointer);
+ data->pointer = kzalloc(data_null.length, GFP_KERNEL);
+ if (!data->pointer) {
+ ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, "kzalloc()"));
+ return -ENOMEM;
+ }
+ data->length = data_null.length;
+ }
+
+ status = acpi_extract_package(package, format, data);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Extracting %s",
+ package_name));
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int acpi_battery_get_status(struct acpi_battery *battery)
+{
+ int result = 0;
+
+ result = acpi_bus_get_status(battery->device);
+ if (result) {
+ ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Evaluating _STA"));
+ return -ENODEV;
+ }
+ return result;
+}
+
+static int acpi_battery_get_info(struct acpi_battery *battery)
{
int result = 0;
acpi_status status = 0;
struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BIF),
ACPI_BATTERY_FORMAT_BIF
};
- struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
+ struct acpi_buffer *data = NULL;
+ struct acpi_battery_info *bif = NULL;
+ battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
- if (!battery || !bif)
- return -EINVAL;
+ if (!acpi_battery_present(battery))
+ return 0;
- /* Evalute _BIF */
+ /* Evaluate _BIF */
- status = acpi_evaluate_object(battery->device->handle, "_BIF", NULL, &buffer);
+ status =
+ acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
+ &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
package = buffer.pointer;
- /* Extract Package Data */
-
- status = acpi_extract_package(package, &format, &data);
- if (status != AE_BUFFER_OVERFLOW) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _BIF"));
- result = -ENODEV;
- goto end;
- }
+ data = &battery->bif_data;
- data.pointer = kzalloc(data.length, GFP_KERNEL);
- if (!data.pointer) {
- result = -ENOMEM;
- goto end;
- }
+ /* Extract Package Data */
- status = acpi_extract_package(package, &format, &data);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _BIF"));
- kfree(data.pointer);
- result = -ENODEV;
+ result =
+ acpi_battery_extract_package(battery, package, &format, data,
+ "_BIF");
+ if (result)
goto end;
- }
end:
+
kfree(buffer.pointer);
- if (!result)
- (*bif) = data.pointer;
+ if (!result) {
+ bif = data->pointer;
+ battery->flags.power_unit = bif->power_unit;
+ }
return result;
}
-static int
-acpi_battery_get_status(struct acpi_battery *battery,
- struct acpi_battery_status **bst)
+static int acpi_battery_get_state(struct acpi_battery *battery)
{
int result = 0;
acpi_status status = 0;
struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BST),
ACPI_BATTERY_FORMAT_BST
};
- struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
+ struct acpi_buffer *data = NULL;
+ battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
- if (!battery || !bst)
- return -EINVAL;
+ if (!acpi_battery_present(battery))
+ return 0;
- /* Evalute _BST */
+ /* Evaluate _BST */
- status = acpi_evaluate_object(battery->device->handle, "_BST", NULL, &buffer);
+ status =
+ acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
+ &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
package = buffer.pointer;
- /* Extract Package Data */
-
- status = acpi_extract_package(package, &format, &data);
- if (status != AE_BUFFER_OVERFLOW) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _BST"));
- result = -ENODEV;
- goto end;
- }
+ data = &battery->bst_data;
- data.pointer = kzalloc(data.length, GFP_KERNEL);
- if (!data.pointer) {
- result = -ENOMEM;
- goto end;
- }
+ /* Extract Package Data */
- status = acpi_extract_package(package, &format, &data);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _BST"));
- kfree(data.pointer);
- result = -ENODEV;
+ result =
+ acpi_battery_extract_package(battery, package, &format, data,
+ "_BST");
+ if (result)
goto end;
- }
end:
kfree(buffer.pointer);
- if (!result)
- (*bst) = data.pointer;
-
return result;
}
-static int
-acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
+static int acpi_battery_get_alarm(struct acpi_battery *battery)
+{
+ battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
+
+ return 0;
+}
+
+static int acpi_battery_set_alarm(struct acpi_battery *battery,
+ unsigned long alarm)
{
acpi_status status = 0;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
+ battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
- if (!battery)
- return -EINVAL;
+ if (!acpi_battery_present(battery))
+ return -ENODEV;
- if (!battery->flags.alarm)
+ if (!battery->flags.alarm_present)
return -ENODEV;
arg0.integer.value = alarm;
- status = acpi_evaluate_object(battery->device->handle, "_BTP", &arg_list, NULL);
+ status =
+ acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+ &arg_list, NULL);
if (ACPI_FAILURE(status))
return -ENODEV;
return 0;
}
-static int acpi_battery_check(struct acpi_battery *battery)
+static int acpi_battery_init_alarm(struct acpi_battery *battery)
{
int result = 0;
acpi_status status = AE_OK;
acpi_handle handle = NULL;
- struct acpi_device *device = NULL;
- struct acpi_battery_info *bif = NULL;
+ struct acpi_battery_info *bif = battery->bif_data.pointer;
+ unsigned long alarm = battery->alarm;
+ /* See if alarms are supported, and if so, set default */
- if (!battery)
- return -EINVAL;
-
- device = battery->device;
+ status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
+ if (ACPI_SUCCESS(status)) {
+ battery->flags.alarm_present = 1;
+ if (!alarm && bif) {
+ alarm = bif->design_capacity_warning;
+ }
+ result = acpi_battery_set_alarm(battery, alarm);
+ if (result)
+ goto end;
+ } else {
+ battery->flags.alarm_present = 0;
+ }
- result = acpi_bus_get_status(device);
- if (result)
- return result;
+ end:
- /* Insertion? */
+ return result;
+}
- if (!battery->flags.present && device->status.battery_present) {
+static int acpi_battery_init_update(struct acpi_battery *battery)
+{
+ int result = 0;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Battery inserted\n"));
+ result = acpi_battery_get_status(battery);
+ if (result)
+ return result;
- /* Evalute _BIF to get certain static information */
+ battery->flags.battery_present_prev = acpi_battery_present(battery);
- result = acpi_battery_get_info(battery, &bif);
+ if (acpi_battery_present(battery)) {
+ result = acpi_battery_get_info(battery);
+ if (result)
+ return result;
+ result = acpi_battery_get_state(battery);
if (result)
return result;
- battery->flags.power_unit = bif->power_unit;
- battery->trips.warning = bif->design_capacity_warning;
- battery->trips.low = bif->design_capacity_low;
- kfree(bif);
+ acpi_battery_init_alarm(battery);
+ }
+
+ return result;
+}
- /* See if alarms are supported, and if so, set default */
+static int acpi_battery_update(struct acpi_battery *battery,
+ int update, int *update_result_ptr)
+{
+ int result = 0;
+ int update_result = ACPI_BATTERY_NONE_UPDATE;
+
+ if (!acpi_battery_present(battery)) {
+ update = 1;
+ }
- status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
- if (ACPI_SUCCESS(status)) {
- battery->flags.alarm = 1;
- acpi_battery_set_alarm(battery, battery->trips.warning);
+ if (battery->flags.init_update) {
+ result = acpi_battery_init_update(battery);
+ if (result)
+ goto end;
+ update_result = ACPI_BATTERY_INIT_UPDATE;
+ } else if (update) {
+ result = acpi_battery_get_status(battery);
+ if (result)
+ goto end;
+ if ((!battery->flags.battery_present_prev & acpi_battery_present(battery))
+ || (battery->flags.battery_present_prev & !acpi_battery_present(battery))) {
+ result = acpi_battery_init_update(battery);
+ if (result)
+ goto end;
+ update_result = ACPI_BATTERY_INIT_UPDATE;
+ } else {
+ update_result = ACPI_BATTERY_EASY_UPDATE;
}
}
- /* Removal? */
+ end:
- else if (battery->flags.present && !device->status.battery_present) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Battery removed\n"));
- }
+ battery->flags.init_update = (result != 0);
- battery->flags.present = device->status.battery_present;
+ *update_result_ptr = update_result;
return result;
}
-static void acpi_battery_check_present(struct acpi_battery *battery)
+static void acpi_battery_notify_update(struct acpi_battery *battery)
{
- if (!battery->flags.present) {
- acpi_battery_check(battery);
+ acpi_battery_get_status(battery);
+
+ if (battery->flags.init_update) {
+ return;
+ }
+
+ if ((!battery->flags.battery_present_prev &
+ acpi_battery_present(battery)) ||
+ (battery->flags.battery_present_prev &
+ !acpi_battery_present(battery))) {
+ battery->flags.init_update = 1;
+ } else {
+ battery->flags.update[ACPI_BATTERY_INFO] = 1;
+ battery->flags.update[ACPI_BATTERY_STATE] = 1;
+ battery->flags.update[ACPI_BATTERY_ALARM] = 1;
}
}
-------------------------------------------------------------------------- */
static struct proc_dir_entry *acpi_battery_dir;
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
+
+static int acpi_battery_print_info(struct seq_file *seq, int result)
{
- int result = 0;
struct acpi_battery *battery = seq->private;
struct acpi_battery_info *bif = NULL;
char *units = "?";
-
- if (!battery)
+ if (result)
goto end;
- acpi_battery_check_present(battery);
-
- if (battery->flags.present)
+ if (acpi_battery_present(battery))
seq_printf(seq, "present: yes\n");
else {
seq_printf(seq, "present: no\n");
goto end;
}
- /* Battery Info (_BIF) */
-
- result = acpi_battery_get_info(battery, &bif);
- if (result || !bif) {
- seq_printf(seq, "ERROR: Unable to read battery information\n");
+ bif = battery->bif_data.pointer;
+ if (!bif) {
+ ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BIF buffer is NULL"));
+ result = -ENODEV;
goto end;
}
- units =
- bif->
- power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
+ /* Battery Units */
+
+ units = acpi_battery_power_units(battery);
if (bif->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
(u32) bif->design_voltage);
-
seq_printf(seq, "design capacity warning: %d %sh\n",
(u32) bif->design_capacity_warning, units);
seq_printf(seq, "design capacity low: %d %sh\n",
seq_printf(seq, "OEM info: %s\n", bif->oem_info);
end:
- kfree(bif);
- return 0;
-}
+ if (result)
+ seq_printf(seq, "ERROR: Unable to read battery info\n");
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_info, PDE(inode)->data);
+ return result;
}
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
+static int acpi_battery_print_state(struct seq_file *seq, int result)
{
- int result = 0;
struct acpi_battery *battery = seq->private;
- struct acpi_battery_status *bst = NULL;
+ struct acpi_battery_state *bst = NULL;
char *units = "?";
-
- if (!battery)
+ if (result)
goto end;
- acpi_battery_check_present(battery);
-
- if (battery->flags.present)
+ if (acpi_battery_present(battery))
seq_printf(seq, "present: yes\n");
else {
seq_printf(seq, "present: no\n");
goto end;
}
- /* Battery Units */
-
- units =
- battery->flags.
- power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
-
- /* Battery Status (_BST) */
-
- result = acpi_battery_get_status(battery, &bst);
- if (result || !bst) {
- seq_printf(seq, "ERROR: Unable to read battery status\n");
+ bst = battery->bst_data.pointer;
+ if (!bst) {
+ ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BST buffer is NULL"));
+ result = -ENODEV;
goto end;
}
+ /* Battery Units */
+
+ units = acpi_battery_power_units(battery);
+
if (!(bst->state & 0x04))
seq_printf(seq, "capacity state: ok\n");
else
(u32) bst->present_voltage);
end:
- kfree(bst);
- return 0;
-}
+ if (result) {
+ seq_printf(seq, "ERROR: Unable to read battery state\n");
+ }
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_state, PDE(inode)->data);
+ return result;
}
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
+static int acpi_battery_print_alarm(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
char *units = "?";
-
- if (!battery)
+ if (result)
goto end;
- acpi_battery_check_present(battery);
-
- if (!battery->flags.present) {
+ if (!acpi_battery_present(battery)) {
seq_printf(seq, "present: no\n");
goto end;
}
/* Battery Units */
- units =
- battery->flags.
- power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
-
- /* Battery Alarm */
+ units = acpi_battery_power_units(battery);
seq_printf(seq, "alarm: ");
if (!battery->alarm)
seq_printf(seq, "unsupported\n");
else
- seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units);
+ seq_printf(seq, "%lu %sh\n", battery->alarm, units);
end:
- return 0;
+
+ if (result)
+ seq_printf(seq, "ERROR: Unable to read battery alarm\n");
+
+ return result;
}
static ssize_t
char alarm_string[12] = { '\0' };
struct seq_file *m = file->private_data;
struct acpi_battery *battery = m->private;
-
+ int update_result = ACPI_BATTERY_NONE_UPDATE;
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
- acpi_battery_check_present(battery);
+ mutex_lock(&battery->mutex);
- if (!battery->flags.present)
- return -ENODEV;
+ result = acpi_battery_update(battery, 1, &update_result);
+ if (result) {
+ result = -ENODEV;
+ goto end;
+ }
+
+ if (!acpi_battery_present(battery)) {
+ result = -ENODEV;
+ goto end;
+ }
- if (copy_from_user(alarm_string, buffer, count))
- return -EFAULT;
+ if (copy_from_user(alarm_string, buffer, count)) {
+ result = -EFAULT;
+ goto end;
+ }
alarm_string[count] = '\0';
result = acpi_battery_set_alarm(battery,
simple_strtoul(alarm_string, NULL, 0));
if (result)
- return result;
+ goto end;
+
+ end:
- return count;
+ acpi_battery_check_result(battery, result);
+
+ if (!result)
+ result = count;
+
+ mutex_unlock(&battery->mutex);
+
+ return result;
+}
+
+typedef int(*print_func)(struct seq_file *seq, int result);
+typedef int(*get_func)(struct acpi_battery *battery);
+
+static struct acpi_read_mux {
+ print_func print;
+ get_func get;
+} acpi_read_funcs[ACPI_BATTERY_NUMFILES] = {
+ {.get = acpi_battery_get_info, .print = acpi_battery_print_info},
+ {.get = acpi_battery_get_state, .print = acpi_battery_print_state},
+ {.get = acpi_battery_get_alarm, .print = acpi_battery_print_alarm},
+};
+
+static int acpi_battery_read(int fid, struct seq_file *seq)
+{
+ struct acpi_battery *battery = seq->private;
+ int result = 0;
+ int update_result = ACPI_BATTERY_NONE_UPDATE;
+ int update = 0;
+
+ mutex_lock(&battery->mutex);
+
+ update = (get_seconds() - battery->update_time[fid] >= update_time);
+ update = (update | battery->flags.update[fid]);
+
+ result = acpi_battery_update(battery, update, &update_result);
+ if (result)
+ goto end;
+
+ if (update_result == ACPI_BATTERY_EASY_UPDATE) {
+ result = acpi_read_funcs[fid].get(battery);
+ if (result)
+ goto end;
+ }
+
+ end:
+ result = acpi_read_funcs[fid].print(seq, result);
+ acpi_battery_check_result(battery, result);
+ battery->flags.update[fid] = result;
+ mutex_unlock(&battery->mutex);
+ return result;
+}
+
+static int acpi_battery_read_info(struct seq_file *seq, void *offset)
+{
+ return acpi_battery_read(ACPI_BATTERY_INFO, seq);
+}
+
+static int acpi_battery_read_state(struct seq_file *seq, void *offset)
+{
+ return acpi_battery_read(ACPI_BATTERY_STATE, seq);
+}
+
+static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
+{
+ return acpi_battery_read(ACPI_BATTERY_ALARM, seq);
+}
+
+static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_battery_read_info, PDE(inode)->data);
+}
+
+static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_battery_read_state, PDE(inode)->data);
}
static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
}
-static const struct file_operations acpi_battery_info_ops = {
+static struct battery_file {
+ struct file_operations ops;
+ mode_t mode;
+ char *name;
+} acpi_battery_file[] = {
+ {
+ .name = "info",
+ .mode = S_IRUGO,
+ .ops = {
.open = acpi_battery_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_state_ops = {
+ },
+ },
+ {
+ .name = "state",
+ .mode = S_IRUGO,
+ .ops = {
.open = acpi_battery_state_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_alarm_ops = {
+ },
+ },
+ {
+ .name = "alarm",
+ .mode = S_IFREG | S_IRUGO | S_IWUSR,
+ .ops = {
.open = acpi_battery_alarm_open_fs,
.read = seq_read,
.write = acpi_battery_write_alarm,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
+ },
+ },
};
static int acpi_battery_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
-
+ int i;
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_device_dir(device)->owner = THIS_MODULE;
}
- /* 'info' [R] */
- entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
- S_IRUGO, acpi_device_dir(device));
- if (!entry)
- return -ENODEV;
- else {
- entry->proc_fops = &acpi_battery_info_ops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
- }
-
- /* 'status' [R] */
- entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS,
- S_IRUGO, acpi_device_dir(device));
- if (!entry)
- return -ENODEV;
- else {
- entry->proc_fops = &acpi_battery_state_ops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
- }
-
- /* 'alarm' [R/W] */
- entry = create_proc_entry(ACPI_BATTERY_FILE_ALARM,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device));
- if (!entry)
- return -ENODEV;
- else {
- entry->proc_fops = &acpi_battery_alarm_ops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
+ for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
+ entry = create_proc_entry(acpi_battery_file[i].name,
+ acpi_battery_file[i].mode, acpi_device_dir(device));
+ if (!entry)
+ return -ENODEV;
+ else {
+ entry->proc_fops = &acpi_battery_file[i].ops;
+ entry->data = acpi_driver_data(device);
+ entry->owner = THIS_MODULE;
+ }
}
return 0;
static int acpi_battery_remove_fs(struct acpi_device *device)
{
-
+ int i;
if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_BATTERY_FILE_ALARM,
+ for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
+ remove_proc_entry(acpi_battery_file[i].name,
acpi_device_dir(device));
- remove_proc_entry(ACPI_BATTERY_FILE_STATUS,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_BATTERY_FILE_INFO,
- acpi_device_dir(device));
-
+ }
remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
acpi_device_dir(device) = NULL;
}
struct acpi_battery *battery = data;
struct acpi_device *device = NULL;
-
if (!battery)
return;
case ACPI_BATTERY_NOTIFY_INFO:
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
- acpi_battery_check(battery);
- acpi_bus_generate_event(device, event, battery->flags.present);
+ device = battery->device;
+ acpi_battery_notify_update(battery);
+ acpi_bus_generate_event(device, event,
+ acpi_battery_present(battery));
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
acpi_status status = 0;
struct acpi_battery *battery = NULL;
-
if (!device)
return -EINVAL;
if (!battery)
return -ENOMEM;
+ mutex_init(&battery->mutex);
+
+ mutex_lock(&battery->mutex);
+
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
- result = acpi_battery_check(battery);
+ result = acpi_battery_get_status(battery);
if (result)
goto end;
+ battery->flags.init_update = 1;
+
result = acpi_battery_add_fs(device);
if (result)
goto end;
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Installing notify handler"));
result = -ENODEV;
goto end;
}
device->status.battery_present ? "present" : "absent");
end:
+
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
}
+ mutex_unlock(&battery->mutex);
+
return result;
}
acpi_status status = 0;
struct acpi_battery *battery = NULL;
-
if (!device || !acpi_driver_data(device))
return -EINVAL;
battery = acpi_driver_data(device);
+ mutex_lock(&battery->mutex);
+
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
acpi_battery_remove_fs(device);
+ kfree(battery->bif_data.pointer);
+
+ kfree(battery->bst_data.pointer);
+
+ mutex_unlock(&battery->mutex);
+
+ mutex_destroy(&battery->mutex);
+
kfree(battery);
return 0;
return -EINVAL;
battery = device->driver_data;
- return acpi_battery_check(battery);
+
+ battery->flags.init_update = 1;
+
+ return 0;
}
static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
-
acpi_bus_unregister_driver(&acpi_battery_driver);
acpi_unlock_battery_dir(acpi_battery_dir);
new_bay->pdev = pdev;
platform_set_drvdata(pdev, new_bay);
+ /*
+ * we want the bay driver to be able to send uevents
+ */
+ pdev->dev.uevent_suppress = 0;
+
if (acpi_bay_add_fs(new_bay)) {
platform_device_unregister(new_bay->pdev);
goto bay_add_err;
{
struct bay *bay_dev = (struct bay *)data;
struct device *dev = &bay_dev->pdev->dev;
+ char event_string[12];
+ char *envp[] = { event_string, NULL };
bay_dprintk(handle, "Bay event");
-
- switch(event) {
- case ACPI_NOTIFY_BUS_CHECK:
- case ACPI_NOTIFY_DEVICE_CHECK:
- case ACPI_NOTIFY_EJECT_REQUEST:
- kobject_uevent(&dev->kobj, KOBJ_CHANGE);
- break;
- default:
- printk(KERN_ERR PREFIX "Bay: unknown event %d\n", event);
- }
+ sprintf(event_string, "BAY_EVENT=%d\n", event);
+ kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
static acpi_status
if (!device)
return -EINVAL;
+ if (acpi_bus_generate_genetlink_event(device, type, data))
+ printk(KERN_WARNING PREFIX
+ "Failed to generate an ACPI event via genetlink!\n");
+
/* drop event on the floor if no one's listening */
if (!event_is_open)
return 0;
MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_DESCRIPTION);
MODULE_LICENSE("GPL");
+static int immediate_undock = 1;
+module_param(immediate_undock, bool, 0644);
+MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to "
+ "undock immediately when the undock button is pressed, 0 will cause"
+ " the driver to wait for userspace to write the undock sysfs file "
+ " before undocking");
+
static struct atomic_notifier_head dock_notifier_list;
-static struct platform_device dock_device;
+static struct platform_device *dock_device;
static char dock_device_name[] = "dock";
struct dock_station {
};
#define DOCK_DOCKING 0x00000001
+#define DOCK_UNDOCKING 0x00000002
#define DOCK_EVENT 3
#define UNDOCK_EVENT 2
static void dock_event(struct dock_station *ds, u32 event, int num)
{
- struct device *dev = &dock_device.dev;
+ struct device *dev = &dock_device->dev;
+ char event_string[7];
+ char *envp[] = { event_string, NULL };
+
+ if (num == UNDOCK_EVENT)
+ sprintf(event_string, "UNDOCK");
+ else
+ sprintf(event_string, "DOCK");
+
/*
* Indicate that the status of the dock station has
* changed.
*/
- kobject_uevent(&dev->kobj, KOBJ_CHANGE);
+ kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
/**
union acpi_object arg;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
acpi_get_name(ds->handle, ACPI_FULL_PATHNAME, &name_buffer);
- obj = name_buffer.pointer;
- printk(KERN_INFO PREFIX "%s\n", dock ? "docking" : "undocking");
+ printk(KERN_INFO PREFIX "%s - %s\n",
+ (char *)name_buffer.pointer, dock ? "docking" : "undocking");
/* _DCK method has one argument */
arg_list.count = 1;
arg.integer.value = dock;
status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
if (ACPI_FAILURE(status))
- pr_debug("%s: failed to execute _DCK\n", obj->string.pointer);
+ printk(KERN_ERR PREFIX "%s - failed to execute _DCK\n",
+ (char *)name_buffer.pointer);
kfree(buffer.pointer);
kfree(name_buffer.pointer);
}
ds->last_dock_time = jiffies;
}
+static inline void begin_undock(struct dock_station *ds)
+{
+ ds->flags |= DOCK_UNDOCKING;
+}
+
+static inline void complete_undock(struct dock_station *ds)
+{
+ ds->flags &= ~(DOCK_UNDOCKING);
+}
+
/**
* dock_in_progress - see if we are in the middle of handling a dock event
* @ds: the dock station
printk(KERN_ERR PREFIX "Unable to undock!\n");
return -EBUSY;
}
-
+ complete_undock(ds);
return 0;
}
* to the driver who wish to hotplug.
*/
case ACPI_NOTIFY_EJECT_REQUEST:
- handle_eject_request(ds, event);
+ begin_undock(ds);
+ if (immediate_undock)
+ handle_eject_request(ds, event);
+ else
+ dock_event(ds, event, UNDOCK_EVENT);
break;
default:
printk(KERN_ERR PREFIX "Unknown dock event %d\n", event);
}
DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
+/*
+ * show_flags - read method for flags file in sysfs
+ */
+static ssize_t show_flags(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
+
+}
+DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
+
/*
* write_undock - write method for "undock" file in sysfs
*/
struct device_attribute *attr, char *buf)
{
unsigned long lbuf;
- acpi_status status = acpi_evaluate_integer(dock_station->handle, "_UID", NULL, &lbuf);
- if(ACPI_FAILURE(status)) {
+ acpi_status status = acpi_evaluate_integer(dock_station->handle,
+ "_UID", NULL, &lbuf);
+ if (ACPI_FAILURE(status))
return 0;
- }
+
return snprintf(buf, PAGE_SIZE, "%lx\n", lbuf);
}
DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
-
-
/**
* dock_add - add a new dock station
* @handle: the dock station handle
ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
/* initialize platform device stuff */
- dock_device.name = dock_device_name;
- ret = platform_device_register(&dock_device);
+ dock_device =
+ platform_device_register_simple(dock_device_name, 0, NULL, 0);
+ if (IS_ERR(dock_device)) {
+ kfree(dock_station);
+ dock_station = NULL;
+ return PTR_ERR(dock_device);
+ }
+
+ /* we want the dock device to send uevents */
+ dock_device->dev.uevent_suppress = 0;
+
+ ret = device_create_file(&dock_device->dev, &dev_attr_docked);
if (ret) {
- printk(KERN_ERR PREFIX "Error %d registering dock device\n", ret);
+ printk("Error %d adding sysfs file\n", ret);
+ platform_device_unregister(dock_device);
kfree(dock_station);
+ dock_station = NULL;
return ret;
}
- ret = device_create_file(&dock_device.dev, &dev_attr_docked);
+ ret = device_create_file(&dock_device->dev, &dev_attr_undock);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
- platform_device_unregister(&dock_device);
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+ platform_device_unregister(dock_device);
kfree(dock_station);
+ dock_station = NULL;
return ret;
}
- ret = device_create_file(&dock_device.dev, &dev_attr_undock);
+ ret = device_create_file(&dock_device->dev, &dev_attr_uid);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
- device_remove_file(&dock_device.dev, &dev_attr_docked);
- platform_device_unregister(&dock_device);
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+ device_remove_file(&dock_device->dev, &dev_attr_undock);
+ platform_device_unregister(dock_device);
kfree(dock_station);
+ dock_station = NULL;
return ret;
}
- ret = device_create_file(&dock_device.dev, &dev_attr_uid);
+ ret = device_create_file(&dock_device->dev, &dev_attr_flags);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
- platform_device_unregister(&dock_device);
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+ device_remove_file(&dock_device->dev, &dev_attr_undock);
+ device_remove_file(&dock_device->dev, &dev_attr_uid);
+ platform_device_unregister(dock_device);
kfree(dock_station);
+ dock_station = NULL;
return ret;
}
dd = alloc_dock_dependent_device(handle);
if (!dd) {
kfree(dock_station);
+ dock_station = NULL;
ret = -ENOMEM;
goto dock_add_err_unregister;
}
dock_add_err:
kfree(dd);
dock_add_err_unregister:
- device_remove_file(&dock_device.dev, &dev_attr_docked);
- device_remove_file(&dock_device.dev, &dev_attr_undock);
- platform_device_unregister(&dock_device);
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+ device_remove_file(&dock_device->dev, &dev_attr_undock);
+ device_remove_file(&dock_device->dev, &dev_attr_uid);
+ device_remove_file(&dock_device->dev, &dev_attr_flags);
+ platform_device_unregister(dock_device);
kfree(dock_station);
+ dock_station = NULL;
return ret;
}
printk(KERN_ERR "Error removing notify handler\n");
/* cleanup sysfs */
- device_remove_file(&dock_device.dev, &dev_attr_docked);
- device_remove_file(&dock_device.dev, &dev_attr_undock);
- platform_device_unregister(&dock_device);
+ device_remove_file(&dock_device->dev, &dev_attr_docked);
+ device_remove_file(&dock_device->dev, &dev_attr_undock);
+ device_remove_file(&dock_device->dev, &dev_attr_uid);
+ device_remove_file(&dock_device->dev, &dev_attr_flags);
+ platform_device_unregister(dock_device);
/* free dock station memory */
kfree(dock_station);
+ dock_station = NULL;
return 0;
}
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
+#include <linux/list.h>
#include <asm/io.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <acpi/actypes.h>
-#define _COMPONENT ACPI_EC_COMPONENT
-ACPI_MODULE_NAME("ec");
-#define ACPI_EC_COMPONENT 0x00100000
#define ACPI_EC_CLASS "embedded_controller"
#define ACPI_EC_HID "PNP0C09"
#define ACPI_EC_DEVICE_NAME "Embedded Controller"
#define ACPI_EC_FILE_INFO "info"
+
#undef PREFIX
#define PREFIX "ACPI: EC: "
+
/* EC status register */
#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
#define ACPI_EC_FLAG_BURST 0x10 /* burst mode */
#define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */
+
/* EC commands */
enum ec_command {
ACPI_EC_COMMAND_READ = 0x80,
ACPI_EC_BURST_DISABLE = 0x83,
ACPI_EC_COMMAND_QUERY = 0x84,
};
+
/* EC events */
enum ec_event {
ACPI_EC_EVENT_OBF_1 = 1, /* Output buffer full */
/* If we find an EC via the ECDT, we need to keep a ptr to its context */
/* External interfaces use first EC only, so remember */
+typedef int (*acpi_ec_query_func) (void *data);
+
+struct acpi_ec_query_handler {
+ struct list_head node;
+ acpi_ec_query_func func;
+ acpi_handle handle;
+ void *data;
+ u8 query_bit;
+};
+
static struct acpi_ec {
acpi_handle handle;
unsigned long gpe;
atomic_t query_pending;
atomic_t event_count;
wait_queue_head_t wait;
+ struct list_head list;
} *boot_ec, *first_ec;
/* --------------------------------------------------------------------------
status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0, 0);
if (status) {
- printk(KERN_DEBUG PREFIX
+ printk(KERN_ERR PREFIX
"input buffer is not empty, aborting transaction\n");
goto end;
}
/* --------------------------------------------------------------------------
Event Management
-------------------------------------------------------------------------- */
+int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
+ acpi_handle handle, acpi_ec_query_func func,
+ void *data)
+{
+ struct acpi_ec_query_handler *handler =
+ kzalloc(sizeof(struct acpi_ec_query_handler), GFP_KERNEL);
+ if (!handler)
+ return -ENOMEM;
+
+ handler->query_bit = query_bit;
+ handler->handle = handle;
+ handler->func = func;
+ handler->data = data;
+ mutex_lock(&ec->lock);
+ list_add_tail(&handler->node, &ec->list);
+ mutex_unlock(&ec->lock);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler);
+
+void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
+{
+ struct acpi_ec_query_handler *handler;
+ mutex_lock(&ec->lock);
+ list_for_each_entry(handler, &ec->list, node) {
+ if (query_bit == handler->query_bit) {
+ list_del(&handler->node);
+ kfree(handler);
+ break;
+ }
+ }
+ mutex_unlock(&ec->lock);
+}
+
+EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
static void acpi_ec_gpe_query(void *ec_cxt)
{
struct acpi_ec *ec = ec_cxt;
u8 value = 0;
- char object_name[8];
+ struct acpi_ec_query_handler *handler, copy;
if (!ec || acpi_ec_query(ec, &value))
return;
-
- snprintf(object_name, 8, "_Q%2.2X", value);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s", object_name));
-
- acpi_evaluate_object(ec->handle, object_name, NULL, NULL);
+ mutex_lock(&ec->lock);
+ list_for_each_entry(handler, &ec->list, node) {
+ if (value == handler->query_bit) {
+ /* have custom handler for this bit */
+ memcpy(©, handler, sizeof(copy));
+ mutex_unlock(&ec->lock);
+ if (copy.func) {
+ copy.func(copy.data);
+ } else if (copy.handle) {
+ acpi_evaluate_object(copy.handle, NULL, NULL, NULL);
+ }
+ return;
+ }
+ }
+ mutex_unlock(&ec->lock);
+ printk(KERN_ERR PREFIX "Handler for query 0x%x is not found!\n", value);
}
static u32 acpi_ec_gpe_handler(void *data)
if ((value & ACPI_EC_FLAG_SCI) && !atomic_read(&ec->query_pending)) {
atomic_set(&ec->query_pending, 1);
status =
- acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query,
- ec);
+ acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query, ec);
}
return status == AE_OK ?
}
static acpi_status
-acpi_ec_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
+acpi_ec_space_handler(u32 function, acpi_physical_address address,
+ u32 bits, acpi_integer *value,
void *handler_context, void *region_context)
{
- int result = 0;
struct acpi_ec *ec = handler_context;
- u64 temp = *value;
- acpi_integer f_v = 0;
- int i = 0;
+ int result = 0, i = 0;
+ u8 temp = 0;
if ((address > 0xFF) || !value || !handler_context)
return AE_BAD_PARAMETER;
- if (bit_width != 8 && acpi_strict) {
+ if (function != ACPI_READ && function != ACPI_WRITE)
return AE_BAD_PARAMETER;
- }
-
- next_byte:
- switch (function) {
- case ACPI_READ:
- temp = 0;
- result = acpi_ec_read(ec, (u8) address, (u8 *) & temp);
- break;
- case ACPI_WRITE:
- result = acpi_ec_write(ec, (u8) address, (u8) temp);
- break;
- default:
- result = -EINVAL;
- goto out;
- break;
- }
- bit_width -= 8;
- if (bit_width) {
- if (function == ACPI_READ)
- f_v |= temp << 8 * i;
- if (function == ACPI_WRITE)
- temp >>= 8;
- i++;
- address++;
- goto next_byte;
- }
+ if (bits != 8 && acpi_strict)
+ return AE_BAD_PARAMETER;
- if (function == ACPI_READ) {
- f_v |= temp << 8 * i;
- *value = f_v;
+ while (bits - i > 0) {
+ if (function == ACPI_READ) {
+ result = acpi_ec_read(ec, address, &temp);
+ (*value) |= ((acpi_integer)temp) << i;
+ } else {
+ temp = 0xff & ((*value) >> i);
+ result = acpi_ec_write(ec, address, temp);
+ }
+ i += 8;
+ ++address;
}
- out:
switch (result) {
case -EINVAL:
return AE_BAD_PARAMETER;
static acpi_status
ec_parse_io_ports(struct acpi_resource *resource, void *context);
-static acpi_status
-ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval);
-
static struct acpi_ec *make_acpi_ec(void)
{
struct acpi_ec *ec = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
atomic_set(&ec->event_count, 1);
mutex_init(&ec->lock);
init_waitqueue_head(&ec->wait);
+ INIT_LIST_HEAD(&ec->list);
return ec;
}
+static acpi_status
+acpi_ec_register_query_methods(acpi_handle handle, u32 level,
+ void *context, void **return_value)
+{
+ struct acpi_namespace_node *node = handle;
+ struct acpi_ec *ec = context;
+ int value = 0;
+ if (sscanf(node->name.ascii, "_Q%x", &value) == 1) {
+ acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
+ }
+ return AE_OK;
+}
+
+static int ec_parse_device(struct acpi_ec *ec, acpi_handle handle)
+{
+ if (ACPI_FAILURE(acpi_walk_resources(handle, METHOD_NAME__CRS,
+ ec_parse_io_ports, ec)))
+ return -EINVAL;
+
+ /* Get GPE bit assignment (EC events). */
+ /* TODO: Add support for _GPE returning a package */
+ if (ACPI_FAILURE(acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe)))
+ return -EINVAL;
+
+ /* Use the global lock for all EC transactions? */
+ acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);
+
+ /* Find and register all query methods */
+ acpi_walk_namespace(ACPI_TYPE_METHOD, handle, 1,
+ acpi_ec_register_query_methods, ec, NULL);
+
+ ec->handle = handle;
+
+ printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx",
+ ec->gpe, ec->command_addr, ec->data_addr);
+
+ return 0;
+}
+
static int acpi_ec_add(struct acpi_device *device)
{
- acpi_status status = AE_OK;
struct acpi_ec *ec = NULL;
if (!device)
if (!ec)
return -ENOMEM;
- status = ec_parse_device(device->handle, 0, ec, NULL);
- if (status != AE_CTRL_TERMINATE) {
+ if (ec_parse_device(ec, device->handle)) {
kfree(ec);
return -EINVAL;
}
/* We might have incorrect info for GL at boot time */
mutex_lock(&boot_ec->lock);
boot_ec->global_lock = ec->global_lock;
+ /* Copy handlers from new ec into boot ec */
+ list_splice(&ec->list, &boot_ec->list);
mutex_unlock(&boot_ec->lock);
kfree(ec);
ec = boot_ec;
acpi_driver_data(device) = ec;
acpi_ec_add_fs(device);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s [%s] (gpe %d) interrupt mode.",
- acpi_device_name(device), acpi_device_bid(device),
- (u32) ec->gpe));
-
return 0;
}
static int acpi_ec_remove(struct acpi_device *device, int type)
{
struct acpi_ec *ec;
+ struct acpi_ec_query_handler *handler;
if (!device)
return -EINVAL;
ec = acpi_driver_data(device);
+ mutex_lock(&ec->lock);
+ list_for_each_entry(handler, &ec->list, node) {
+ list_del(&handler->node);
+ kfree(handler);
+ }
+ mutex_unlock(&ec->lock);
acpi_ec_remove_fs(device);
acpi_driver_data(device) = NULL;
if (ec == first_ec)
return -ENODEV;
}
- /* EC is fully operational, allow queries */
- atomic_set(&ec->query_pending, 0);
-
return 0;
}
static int acpi_ec_start(struct acpi_device *device)
{
struct acpi_ec *ec;
+ int ret = 0;
if (!device)
return -EINVAL;
if (!ec)
return -EINVAL;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02lx, ports=0x%2lx,0x%2lx",
- ec->gpe, ec->command_addr, ec->data_addr));
-
/* Boot EC is already working */
- if (ec == boot_ec)
- return 0;
+ if (ec != boot_ec)
+ ret = ec_install_handlers(ec);
+
+ /* EC is fully operational, allow queries */
+ atomic_set(&ec->query_pending, 0);
- return ec_install_handlers(ec);
+ return ret;
}
static int acpi_ec_stop(struct acpi_device *device, int type)
return 0;
}
-static acpi_status
-ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
-{
- acpi_status status;
-
- struct acpi_ec *ec = context;
- status = acpi_walk_resources(handle, METHOD_NAME__CRS,
- ec_parse_io_ports, ec);
- if (ACPI_FAILURE(status))
- return status;
-
- /* Get GPE bit assignment (EC events). */
- /* TODO: Add support for _GPE returning a package */
- status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe);
- if (ACPI_FAILURE(status))
- return status;
-
- /* Use the global lock for all EC transactions? */
- acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);
-
- ec->handle = handle;
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "GPE=0x%02lx, ports=0x%2lx, 0x%2lx",
- ec->gpe, ec->command_addr, ec->data_addr));
-
- return AE_CTRL_TERMINATE;
-}
-
int __init acpi_ec_ecdt_probe(void)
{
int ret;
if (ACPI_FAILURE(status))
goto error;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found ECDT"));
+ printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n");
boot_ec->command_addr = ecdt_ptr->control.address;
boot_ec->data_addr = ecdt_ptr->data.address;
#include <linux/init.h>
#include <linux/poll.h>
#include <acpi/acpi_drivers.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("event");
static int chars_remaining = 0;
static char *ptr;
-
if (!chars_remaining) {
memset(&event, 0, sizeof(struct acpi_bus_event));
.poll = acpi_system_poll_event,
};
+#ifdef CONFIG_NET
+unsigned int acpi_event_seqnum;
+struct acpi_genl_event {
+ acpi_device_class device_class;
+ char bus_id[15];
+ u32 type;
+ u32 data;
+};
+
+/* attributes of acpi_genl_family */
+enum {
+ ACPI_GENL_ATTR_UNSPEC,
+ ACPI_GENL_ATTR_EVENT, /* ACPI event info needed by user space */
+ __ACPI_GENL_ATTR_MAX,
+};
+#define ACPI_GENL_ATTR_MAX (__ACPI_GENL_ATTR_MAX - 1)
+
+/* commands supported by the acpi_genl_family */
+enum {
+ ACPI_GENL_CMD_UNSPEC,
+ ACPI_GENL_CMD_EVENT, /* kernel->user notifications for ACPI events */
+ __ACPI_GENL_CMD_MAX,
+};
+#define ACPI_GENL_CMD_MAX (__ACPI_GENL_CMD_MAX - 1)
+
+#define ACPI_GENL_FAMILY_NAME "acpi_event"
+#define ACPI_GENL_VERSION 0x01
+#define ACPI_GENL_MCAST_GROUP_NAME "acpi_mc_group"
+
+static struct genl_family acpi_event_genl_family = {
+ .id = GENL_ID_GENERATE,
+ .name = ACPI_GENL_FAMILY_NAME,
+ .version = ACPI_GENL_VERSION,
+ .maxattr = ACPI_GENL_ATTR_MAX,
+};
+
+static struct genl_multicast_group acpi_event_mcgrp = {
+ .name = ACPI_GENL_MCAST_GROUP_NAME,
+};
+
+int acpi_bus_generate_genetlink_event(struct acpi_device *device,
+ u8 type, int data)
+{
+ struct sk_buff *skb;
+ struct nlattr *attr;
+ struct acpi_genl_event *event;
+ void *msg_header;
+ int size;
+ int result;
+
+ /* allocate memory */
+ size = nla_total_size(sizeof(struct acpi_genl_event)) +
+ nla_total_size(0);
+
+ skb = genlmsg_new(size, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ /* add the genetlink message header */
+ msg_header = genlmsg_put(skb, 0, acpi_event_seqnum++,
+ &acpi_event_genl_family, 0,
+ ACPI_GENL_CMD_EVENT);
+ if (!msg_header) {
+ nlmsg_free(skb);
+ return -ENOMEM;
+ }
+
+ /* fill the data */
+ attr =
+ nla_reserve(skb, ACPI_GENL_ATTR_EVENT,
+ sizeof(struct acpi_genl_event));
+ if (!attr) {
+ nlmsg_free(skb);
+ return -EINVAL;
+ }
+
+ event = nla_data(attr);
+ if (!event) {
+ nlmsg_free(skb);
+ return -EINVAL;
+ }
+
+ memset(event, 0, sizeof(struct acpi_genl_event));
+
+ strcpy(event->device_class, device->pnp.device_class);
+ strcpy(event->bus_id, device->dev.bus_id);
+ event->type = type;
+ event->data = data;
+
+ /* send multicast genetlink message */
+ result = genlmsg_end(skb, msg_header);
+ if (result < 0) {
+ nlmsg_free(skb);
+ return result;
+ }
+
+ result =
+ genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
+ if (result)
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Failed to send a Genetlink message!\n"));
+ return 0;
+}
+
+static int acpi_event_genetlink_init(void)
+{
+ int result;
+
+ result = genl_register_family(&acpi_event_genl_family);
+ if (result)
+ return result;
+
+ result = genl_register_mc_group(&acpi_event_genl_family,
+ &acpi_event_mcgrp);
+ if (result)
+ genl_unregister_family(&acpi_event_genl_family);
+
+ return result;
+}
+
+#else
+int acpi_bus_generate_genetlink_event(struct acpi_device *device, u8 type,
+ int data)
+{
+ return 0;
+}
+
+static int acpi_event_genetlink_init(void)
+{
+ return -ENODEV;
+}
+#endif
+
static int __init acpi_event_init(void)
{
struct proc_dir_entry *entry;
int error = 0;
-
if (acpi_disabled)
return 0;
+ /* create genetlink for acpi event */
+ error = acpi_event_genetlink_init();
+ if (error)
+ printk(KERN_WARNING PREFIX
+ "Failed to create genetlink family for ACPI event\n");
+
/* 'event' [R] */
entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
if (entry)
entry->proc_fops = &acpi_system_event_ops;
- else {
- error = -ENODEV;
- }
- return error;
+ else
+ return -ENODEV;
+
+ return 0;
}
-subsys_initcall(acpi_event_init);
+fs_initcall(acpi_event_init);
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
if (gpe_xrupt->previous) {
gpe_xrupt->previous->next = gpe_xrupt->next;
+ } else {
+ /* No previous, update list head */
+
+ acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next;
}
if (gpe_xrupt->next) {
}
if (!pci_device_node) {
+ ACPI_FREE(pci_id);
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
}
#if ACPI_GLUE_DEBUG
#define DBG(x...) printk(PREFIX x)
#else
-#define DBG(x...)
+#define DBG(x...) do { } while(0)
#endif
static LIST_HEAD(bus_type_list);
static DECLARE_RWSEM(bus_type_sem);
#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */
static char osi_additional_string[OSI_STRING_LENGTH_MAX];
-#define OSI_LINUX_ENABLED
-#ifdef OSI_LINUX_ENABLED
-int osi_linux = 1; /* enable _OSI(Linux) by default */
-#else
-int osi_linux; /* disable _OSI(Linux) by default */
-#endif
-
+static int osi_linux; /* disable _OSI(Linux) by default */
#ifdef CONFIG_DMI
static struct __initdata dmi_system_id acpi_osl_dmi_table[];
if (!strcmp("Linux", interface)) {
printk(KERN_WARNING PREFIX
"System BIOS is requesting _OSI(Linux)\n");
-#ifdef OSI_LINUX_ENABLED
- printk(KERN_WARNING PREFIX
- "Please test with \"acpi_osi=!Linux\"\n"
- "Please send dmidecode "
- "to linux-acpi@vger.kernel.org\n");
-#else
printk(KERN_WARNING PREFIX
"If \"acpi_osi=Linux\" works better,\n"
"Please send dmidecode "
"to linux-acpi@vger.kernel.org\n");
-#endif
if(osi_linux)
return AE_OK;
}
}
#ifdef CONFIG_DMI
-#ifdef OSI_LINUX_ENABLED
-static int dmi_osi_not_linux(struct dmi_system_id *d)
-{
- printk(KERN_NOTICE "%s detected: requires not _OSI(Linux)\n", d->ident);
- enable_osi_linux(0);
- return 0;
-}
-#else
static int dmi_osi_linux(struct dmi_system_id *d)
{
- printk(KERN_NOTICE "%s detected: requires _OSI(Linux)\n", d->ident);
+ printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident);
enable_osi_linux(1);
return 0;
}
-#endif
static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {
-#ifdef OSI_LINUX_ENABLED
- /*
- * Boxes that need NOT _OSI(Linux)
- */
- {
- .callback = dmi_osi_not_linux,
- .ident = "Toshiba Satellite P100",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_BOARD_NAME, "Satellite P100"),
- },
- },
-#else
/*
* Boxes that need _OSI(Linux)
*/
DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),
},
},
-#endif
{}
};
#endif /* CONFIG_DMI */
/* query and set link->irq.active */
acpi_pci_link_get_current(link);
- printk(PREFIX "%s [%s] (IRQs", acpi_device_name(device),
+ printk(KERN_INFO PREFIX "%s [%s] (IRQs", acpi_device_name(device),
acpi_device_bid(device));
for (i = 0; i < link->irq.possible_count; i++) {
if (link->irq.active == link->irq.possible[i]) {
#define ACPI_PROCESSOR_FILE_LIMIT "limit"
#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
#define ACPI_PROCESSOR_NOTIFY_POWER 0x81
+#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82
#define ACPI_PROCESSOR_LIMIT_USER 0
#define ACPI_PROCESSOR_LIMIT_THERMAL 1
static void acpi_processor_notify(acpi_handle handle, u32 event, void *data);
static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
static int acpi_processor_handle_eject(struct acpi_processor *pr);
+extern int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
+
static struct acpi_driver acpi_processor_driver = {
.name = "processor",
acpi_processor_cst_has_changed(pr);
acpi_bus_generate_event(device, event, 0);
break;
+ case ACPI_PROCESSOR_NOTIFY_THROTTLING:
+ acpi_processor_tstate_has_changed(pr);
+ acpi_bus_generate_event(device, event, 0);
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Unsupported event [0x%x]\n", event));
case ACPI_STATE_C3:
- if (pr->flags.bm_check) {
+ /*
+ * disable bus master
+ * bm_check implies we need ARB_DIS
+ * !bm_check implies we need cache flush
+ * bm_control implies whether we can do ARB_DIS
+ *
+ * That leaves a case where bm_check is set and bm_control is
+ * not set. In that case we cannot do much, we enter C3
+ * without doing anything.
+ */
+ if (pr->flags.bm_check && pr->flags.bm_control) {
if (atomic_inc_return(&c3_cpu_count) ==
num_online_cpus()) {
/*
*/
acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1);
}
- } else {
+ } else if (!pr->flags.bm_check) {
/* SMP with no shared cache... Invalidate cache */
ACPI_FLUSH_CPU_CACHE();
}
acpi_cstate_enter(cx);
/* Get end time (ticks) */
t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
- if (pr->flags.bm_check) {
+ if (pr->flags.bm_check && pr->flags.bm_control) {
/* Enable bus master arbitration */
atomic_dec(&c3_cpu_count);
acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
if (pr->flags.bm_check) {
/* bus mastering control is necessary */
if (!pr->flags.bm_control) {
+ /* In this case we enter C3 without bus mastering */
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "C3 support requires bus mastering control\n"));
- return;
+ "C3 support without bus mastering control\n"));
}
} else {
/*
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_throttling");
+static int acpi_processor_get_throttling(struct acpi_processor *pr);
+int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+
+static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
+{
+ acpi_status status = 0;
+ unsigned long tpc = 0;
+
+ if (!pr)
+ return -EINVAL;
+ status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TPC"));
+ return -ENODEV;
+ }
+ pr->throttling_platform_limit = (int)tpc;
+ return 0;
+}
+
+int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
+{
+ return acpi_processor_get_platform_limit(pr);
+}
+
+/* --------------------------------------------------------------------------
+ _PTC, _TSS, _TSD support
+ -------------------------------------------------------------------------- */
+static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
+{
+ int result = 0;
+ acpi_status status = 0;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *ptc = NULL;
+ union acpi_object obj = { 0 };
+
+ status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PTC"));
+ return -ENODEV;
+ }
+
+ ptc = (union acpi_object *)buffer.pointer;
+ if (!ptc || (ptc->type != ACPI_TYPE_PACKAGE)
+ || (ptc->package.count != 2)) {
+ printk(KERN_ERR PREFIX "Invalid _PTC data\n");
+ result = -EFAULT;
+ goto end;
+ }
+
+ /*
+ * control_register
+ */
+
+ obj = ptc->package.elements[0];
+
+ if ((obj.type != ACPI_TYPE_BUFFER)
+ || (obj.buffer.length < sizeof(struct acpi_ptc_register))
+ || (obj.buffer.pointer == NULL)) {
+ printk(KERN_ERR PREFIX
+ "Invalid _PTC data (control_register)\n");
+ result = -EFAULT;
+ goto end;
+ }
+ memcpy(&pr->throttling.control_register, obj.buffer.pointer,
+ sizeof(struct acpi_ptc_register));
+
+ /*
+ * status_register
+ */
+
+ obj = ptc->package.elements[1];
+
+ if ((obj.type != ACPI_TYPE_BUFFER)
+ || (obj.buffer.length < sizeof(struct acpi_ptc_register))
+ || (obj.buffer.pointer == NULL)) {
+ printk(KERN_ERR PREFIX "Invalid _PTC data (status_register)\n");
+ result = -EFAULT;
+ goto end;
+ }
+
+ memcpy(&pr->throttling.status_register, obj.buffer.pointer,
+ sizeof(struct acpi_ptc_register));
+
+ end:
+ kfree(buffer.pointer);
+
+ return result;
+}
+static int acpi_processor_get_throttling_states(struct acpi_processor *pr)
+{
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer format = { sizeof("NNNNN"), "NNNNN" };
+ struct acpi_buffer state = { 0, NULL };
+ union acpi_object *tss = NULL;
+ int i;
+
+ status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TSS"));
+ return -ENODEV;
+ }
+
+ tss = buffer.pointer;
+ if (!tss || (tss->type != ACPI_TYPE_PACKAGE)) {
+ printk(KERN_ERR PREFIX "Invalid _TSS data\n");
+ result = -EFAULT;
+ goto end;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d throttling states\n",
+ tss->package.count));
+
+ pr->throttling.state_count = tss->package.count;
+ pr->throttling.states_tss =
+ kmalloc(sizeof(struct acpi_processor_tx_tss) * tss->package.count,
+ GFP_KERNEL);
+ if (!pr->throttling.states_tss) {
+ result = -ENOMEM;
+ goto end;
+ }
+
+ for (i = 0; i < pr->throttling.state_count; i++) {
+
+ struct acpi_processor_tx_tss *tx =
+ (struct acpi_processor_tx_tss *)&(pr->throttling.
+ states_tss[i]);
+
+ state.length = sizeof(struct acpi_processor_tx_tss);
+ state.pointer = tx;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Extracting state %d\n", i));
+
+ status = acpi_extract_package(&(tss->package.elements[i]),
+ &format, &state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Invalid _TSS data"));
+ result = -EFAULT;
+ kfree(pr->throttling.states_tss);
+ goto end;
+ }
+
+ if (!tx->freqpercentage) {
+ printk(KERN_ERR PREFIX
+ "Invalid _TSS data: freq is zero\n");
+ result = -EFAULT;
+ kfree(pr->throttling.states_tss);
+ goto end;
+ }
+ }
+
+ end:
+ kfree(buffer.pointer);
+
+ return result;
+}
+static int acpi_processor_get_tsd(struct acpi_processor *pr)
+{
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer format = { sizeof("NNNNN"), "NNNNN" };
+ struct acpi_buffer state = { 0, NULL };
+ union acpi_object *tsd = NULL;
+ struct acpi_tsd_package *pdomain;
+
+ status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ return -ENODEV;
+ }
+
+ tsd = buffer.pointer;
+ if (!tsd || (tsd->type != ACPI_TYPE_PACKAGE)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+ result = -EFAULT;
+ goto end;
+ }
+
+ if (tsd->package.count != 1) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+ result = -EFAULT;
+ goto end;
+ }
+
+ pdomain = &(pr->throttling.domain_info);
+
+ state.length = sizeof(struct acpi_tsd_package);
+ state.pointer = pdomain;
+
+ status = acpi_extract_package(&(tsd->package.elements[0]),
+ &format, &state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+ result = -EFAULT;
+ goto end;
+ }
+
+ if (pdomain->num_entries != ACPI_TSD_REV0_ENTRIES) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _TSD:num_entries\n"));
+ result = -EFAULT;
+ goto end;
+ }
+
+ if (pdomain->revision != ACPI_TSD_REV0_REVISION) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _TSD:revision\n"));
+ result = -EFAULT;
+ goto end;
+ }
+
+ end:
+ kfree(buffer.pointer);
+ return result;
+}
+
/* --------------------------------------------------------------------------
Throttling Control
-------------------------------------------------------------------------- */
-static int acpi_processor_get_throttling(struct acpi_processor *pr)
+static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
{
int state = 0;
u32 value = 0;
u32 duty_mask = 0;
u32 duty_value = 0;
-
if (!pr)
return -EINVAL;
return 0;
}
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
+static int acpi_read_throttling_status(struct acpi_processor_throttling
+ *throttling)
+{
+ int value = -1;
+ switch (throttling->status_register.space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+ acpi_os_read_port((acpi_io_address) throttling->status_register.
+ address, &value,
+ (u32) throttling->status_register.bit_width *
+ 8);
+ break;
+ case ACPI_ADR_SPACE_FIXED_HARDWARE:
+ printk(KERN_ERR PREFIX
+ "HARDWARE addr space,NOT supported yet\n");
+ break;
+ default:
+ printk(KERN_ERR PREFIX "Unknown addr space %d\n",
+ (u32) (throttling->status_register.space_id));
+ }
+ return value;
+}
+
+static int acpi_write_throttling_state(struct acpi_processor_throttling
+ *throttling, int value)
+{
+ int ret = -1;
+
+ switch (throttling->control_register.space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+ acpi_os_write_port((acpi_io_address) throttling->
+ control_register.address, value,
+ (u32) throttling->control_register.
+ bit_width * 8);
+ ret = 0;
+ break;
+ case ACPI_ADR_SPACE_FIXED_HARDWARE:
+ printk(KERN_ERR PREFIX
+ "HARDWARE addr space,NOT supported yet\n");
+ break;
+ default:
+ printk(KERN_ERR PREFIX "Unknown addr space %d\n",
+ (u32) (throttling->control_register.space_id));
+ }
+ return ret;
+}
+
+static int acpi_get_throttling_state(struct acpi_processor *pr, int value)
+{
+ int i;
+
+ for (i = 0; i < pr->throttling.state_count; i++) {
+ struct acpi_processor_tx_tss *tx =
+ (struct acpi_processor_tx_tss *)&(pr->throttling.
+ states_tss[i]);
+ if (tx->control == value)
+ break;
+ }
+ if (i > pr->throttling.state_count)
+ i = -1;
+ return i;
+}
+
+static int acpi_get_throttling_value(struct acpi_processor *pr, int state)
+{
+ int value = -1;
+ if (state >= 0 && state <= pr->throttling.state_count) {
+ struct acpi_processor_tx_tss *tx =
+ (struct acpi_processor_tx_tss *)&(pr->throttling.
+ states_tss[state]);
+ value = tx->control;
+ }
+ return value;
+}
+
+static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
+{
+ int state = 0;
+ u32 value = 0;
+
+ if (!pr)
+ return -EINVAL;
+
+ if (!pr->flags.throttling)
+ return -ENODEV;
+
+ pr->throttling.state = 0;
+ local_irq_disable();
+ value = acpi_read_throttling_status(&pr->throttling);
+ if (value >= 0) {
+ state = acpi_get_throttling_state(pr, value);
+ pr->throttling.state = state;
+ }
+ local_irq_enable();
+
+ return 0;
+}
+
+static int acpi_processor_get_throttling(struct acpi_processor *pr)
+{
+ return pr->throttling.acpi_processor_get_throttling(pr);
+}
+
+static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
+ int state)
{
u32 value = 0;
u32 duty_mask = 0;
u32 duty_value = 0;
-
if (!pr)
return -EINVAL;
if (state == pr->throttling.state)
return 0;
+ if (state < pr->throttling_platform_limit)
+ return -EPERM;
/*
* Calculate the duty_value and duty_mask.
*/
return 0;
}
+static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
+ int state)
+{
+ u32 value = 0;
+
+ if (!pr)
+ return -EINVAL;
+
+ if ((state < 0) || (state > (pr->throttling.state_count - 1)))
+ return -EINVAL;
+
+ if (!pr->flags.throttling)
+ return -ENODEV;
+
+ if (state == pr->throttling.state)
+ return 0;
+
+ if (state < pr->throttling_platform_limit)
+ return -EPERM;
+
+ local_irq_disable();
+
+ value = acpi_get_throttling_value(pr, state);
+ if (value >= 0) {
+ acpi_write_throttling_state(&pr->throttling, value);
+ pr->throttling.state = state;
+ }
+ local_irq_enable();
+
+ return 0;
+}
+
+int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
+{
+ return pr->throttling.acpi_processor_set_throttling(pr, state);
+}
+
int acpi_processor_get_throttling_info(struct acpi_processor *pr)
{
int result = 0;
int step = 0;
int i = 0;
-
+ int no_ptc = 0;
+ int no_tss = 0;
+ int no_tsd = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
return -EINVAL;
/* TBD: Support ACPI 2.0 objects */
+ no_ptc = acpi_processor_get_throttling_control(pr);
+ no_tss = acpi_processor_get_throttling_states(pr);
+ no_tsd = acpi_processor_get_tsd(pr);
+
+ if (no_ptc || no_tss) {
+ pr->throttling.acpi_processor_get_throttling =
+ &acpi_processor_get_throttling_fadt;
+ pr->throttling.acpi_processor_set_throttling =
+ &acpi_processor_set_throttling_fadt;
+ } else {
+ pr->throttling.acpi_processor_get_throttling =
+ &acpi_processor_get_throttling_ptc;
+ pr->throttling.acpi_processor_set_throttling =
+ &acpi_processor_set_throttling_ptc;
+ }
if (!pr->throttling.address) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
int i = 0;
int result = 0;
-
if (!pr)
goto end;
}
seq_printf(seq, "state count: %d\n"
- "active state: T%d\n",
- pr->throttling.state_count, pr->throttling.state);
+ "active state: T%d\n"
+ "state available: T%d to T%d\n",
+ pr->throttling.state_count, pr->throttling.state,
+ pr->throttling_platform_limit,
+ pr->throttling.state_count - 1);
seq_puts(seq, "states:\n");
- for (i = 0; i < pr->throttling.state_count; i++)
- seq_printf(seq, " %cT%d: %02d%%\n",
- (i == pr->throttling.state ? '*' : ' '), i,
- (pr->throttling.states[i].performance ? pr->
- throttling.states[i].performance / 10 : 0));
+ if (acpi_processor_get_throttling == acpi_processor_get_throttling_fadt)
+ for (i = 0; i < pr->throttling.state_count; i++)
+ seq_printf(seq, " %cT%d: %02d%%\n",
+ (i == pr->throttling.state ? '*' : ' '), i,
+ (pr->throttling.states[i].performance ? pr->
+ throttling.states[i].performance / 10 : 0));
+ else
+ for (i = 0; i < pr->throttling.state_count; i++)
+ seq_printf(seq, " %cT%d: %02d%%\n",
+ (i == pr->throttling.state ? '*' : ' '), i,
+ (int)pr->throttling.states_tss[i].
+ freqpercentage);
end:
return 0;
PDE(inode)->data);
}
-static ssize_t acpi_processor_write_throttling(struct file * file,
+static ssize_t acpi_processor_write_throttling(struct file *file,
const char __user * buffer,
size_t count, loff_t * data)
{
struct acpi_processor *pr = m->private;
char state_string[12] = { '\0' };
-
if (!pr || (count > sizeof(state_string) - 1))
return -EINVAL;
static struct acpi_driver acpi_sbs_driver = {
.name = "sbs",
.class = ACPI_SBS_CLASS,
- .ids = ACPI_SBS_HID,
+ .ids = "ACPI0001,ACPI0005",
.ops = {
.add = acpi_sbs_add,
.remove = acpi_sbs_remove,
};
struct acpi_sbs {
- acpi_handle handle;
int base;
struct acpi_device *device;
- struct acpi_ec_smbus *smbus;
struct mutex mutex;
int sbsm_present;
int sbsm_batteries_supported;
"acpi_sbs_read_word() failed"));
goto end;
}
-
+ sbs->sbsm_present = 1;
sbs->sbsm_batteries_supported = battery_system_info & 0x000f;
end:
{
struct acpi_sbs *sbs = NULL;
int result = 0, remove_result = 0;
- unsigned long sbs_obj;
int id;
acpi_status status = AE_OK;
unsigned long val;
status =
- acpi_evaluate_integer(device->parent->handle, "_EC", NULL, &val);
+ acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Error obtaining _EC"));
return -EIO;
sbs_mutex_lock(sbs);
- sbs->base = (val & 0xff00ull) >> 8;
+ sbs->base = 0xff & (val >> 8);
sbs->device = device;
strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME);
ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed"));
goto end;
}
- status = acpi_evaluate_integer(device->handle, "_SBS", NULL, &sbs_obj);
- if (status) {
- ACPI_EXCEPTION((AE_INFO, status,
- "acpi_evaluate_integer() failed"));
- result = -EIO;
- goto end;
- }
- if (sbs_obj > 0) {
- result = acpi_sbsm_get_info(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbsm_get_info() failed"));
- goto end;
- }
- sbs->sbsm_present = 1;
- }
- if (sbs->sbsm_present == 0) {
+ acpi_sbsm_get_info(sbs);
+
+ if (!sbs->sbsm_present) {
result = acpi_battery_add(sbs, 0);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
}
}
- sbs->handle = device->handle;
-
init_timer(&sbs->update_timer);
result = acpi_check_update_proc(sbs);
if (result)
/* reset firmware waking vector */
acpi_set_firmware_waking_vector((acpi_physical_address) 0);
-
- if (init_8259A_after_S1) {
- printk("Broken toshiba laptop -> kicking interrupts\n");
- init_8259A(0);
- }
}
static int acpi_hibernation_pre_restore(void)
#define ACPI_SYSTEM_CLASS "system"
#define ACPI_SYSTEM_DEVICE_NAME "System"
-#define ACPI_SYSTEM_FILE_INFO "info"
-#define ACPI_SYSTEM_FILE_EVENT "event"
-#define ACPI_SYSTEM_FILE_DSDT "dsdt"
-#define ACPI_SYSTEM_FILE_FADT "fadt"
/*
* Make ACPICA version work as module param
*/
-static int param_get_acpica_version(char *buffer, struct kernel_param *kp) {
+static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
+{
int result;
result = sprintf(buffer, "%x", ACPI_CA_VERSION);
module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
+/* --------------------------------------------------------------------------
+ FS Interface (/sys)
+ -------------------------------------------------------------------------- */
+static LIST_HEAD(acpi_table_attr_list);
+static struct kobject tables_kobj;
+
+struct acpi_table_attr {
+ struct bin_attribute attr;
+ char name[8];
+ int instance;
+ struct list_head node;
+};
+
+static ssize_t acpi_table_show(struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t offset, size_t count)
+{
+ struct acpi_table_attr *table_attr =
+ container_of(bin_attr, struct acpi_table_attr, attr);
+ struct acpi_table_header *table_header = NULL;
+ acpi_status status;
+ ssize_t ret_count = count;
+
+ status =
+ acpi_get_table(table_attr->name, table_attr->instance,
+ &table_header);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ if (offset >= table_header->length) {
+ ret_count = 0;
+ goto end;
+ }
+
+ if (offset + ret_count > table_header->length)
+ ret_count = table_header->length - offset;
+
+ memcpy(buf, ((char *)table_header) + offset, ret_count);
+
+ end:
+ return ret_count;
+}
+
+static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
+ struct acpi_table_header *table_header)
+{
+ struct acpi_table_header *header = NULL;
+ struct acpi_table_attr *attr = NULL;
+
+ memcpy(table_attr->name, table_header->signature, ACPI_NAME_SIZE);
+
+ list_for_each_entry(attr, &acpi_table_attr_list, node) {
+ if (!memcmp(table_header->signature, attr->name,
+ ACPI_NAME_SIZE))
+ if (table_attr->instance < attr->instance)
+ table_attr->instance = attr->instance;
+ }
+ table_attr->instance++;
+
+ if (table_attr->instance > 1 || (table_attr->instance == 1 &&
+ !acpi_get_table(table_header->
+ signature, 2,
+ &header)))
+ sprintf(table_attr->name + 4, "%d", table_attr->instance);
+
+ table_attr->attr.size = 0;
+ table_attr->attr.read = acpi_table_show;
+ table_attr->attr.attr.name = table_attr->name;
+ table_attr->attr.attr.mode = 0444;
+ table_attr->attr.attr.owner = THIS_MODULE;
+
+ return;
+}
+
+static int acpi_system_sysfs_init(void)
+{
+ struct acpi_table_attr *table_attr;
+ struct acpi_table_header *table_header = NULL;
+ int table_index = 0;
+ int result;
+
+ tables_kobj.parent = &acpi_subsys.kobj;
+ kobject_set_name(&tables_kobj, "tables");
+ result = kobject_register(&tables_kobj);
+ if (result)
+ return result;
+
+ do {
+ result = acpi_get_table_by_index(table_index, &table_header);
+ if (!result) {
+ table_index++;
+ table_attr = NULL;
+ table_attr =
+ kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
+ if (!table_attr)
+ return -ENOMEM;
+
+ acpi_table_attr_init(table_attr, table_header);
+ result =
+ sysfs_create_bin_file(&tables_kobj,
+ &table_attr->attr);
+ if (result) {
+ kfree(table_attr);
+ return result;
+ } else
+ list_add_tail(&table_attr->node,
+ &acpi_table_attr_list);
+ }
+ } while (!result);
+
+ return 0;
+}
+
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_PROCFS
+#define ACPI_SYSTEM_FILE_INFO "info"
+#define ACPI_SYSTEM_FILE_EVENT "event"
+#define ACPI_SYSTEM_FILE_DSDT "dsdt"
+#define ACPI_SYSTEM_FILE_FADT "fadt"
static int acpi_system_read_info(struct seq_file *seq, void *offset)
{
.llseek = seq_lseek,
.release = single_release,
};
-#endif
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
loff_t *);
struct acpi_table_header *dsdt = NULL;
ssize_t res;
-
status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
if (ACPI_FAILURE(status))
return -ENODEV;
- res = simple_read_from_buffer(buffer, count, ppos,
- dsdt, dsdt->length);
+ res = simple_read_from_buffer(buffer, count, ppos, dsdt, dsdt->length);
return res;
}
struct acpi_table_header *fadt = NULL;
ssize_t res;
-
status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
if (ACPI_FAILURE(status))
return -ENODEV;
- res = simple_read_from_buffer(buffer, count, ppos,
- fadt, fadt->length);
+ res = simple_read_from_buffer(buffer, count, ppos, fadt, fadt->length);
return res;
}
-static int __init acpi_system_init(void)
+static int acpi_system_procfs_init(void)
{
struct proc_dir_entry *entry;
int error = 0;
char *name;
-
- if (acpi_disabled)
- return 0;
-
-#ifdef CONFIG_ACPI_PROCFS
/* 'info' [R] */
name = ACPI_SYSTEM_FILE_INFO;
entry = create_proc_entry(name, S_IRUGO, acpi_root_dir);
else {
entry->proc_fops = &acpi_system_info_ops;
}
-#endif
/* 'dsdt' [R] */
name = ACPI_SYSTEM_FILE_DSDT;
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
-#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
-#endif
error = -EFAULT;
goto Done;
}
+#else
+static int acpi_system_procfs_init(void)
+{
+ return 0;
+}
+#endif
+
+static int __init acpi_system_init(void)
+{
+ int result = 0;
+
+ if (acpi_disabled)
+ return 0;
+
+ result = acpi_system_procfs_init();
+ if (result)
+ return result;
+
+ result = acpi_system_sysfs_init();
+
+ return result;
+}
subsys_initcall(acpi_system_init);
* DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
* Performs validation on some important FADT fields.
*
+ * NOTE: We create a local copy of the FADT regardless of the version.
+ *
******************************************************************************/
void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
{
/*
- * Check if the FADT is larger than what we know about (ACPI 2.0 version).
- * Truncate the table, but make some noise.
+ * Check if the FADT is larger than the largest table that we expect
+ * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue
+ * a warning.
*/
if (length > sizeof(struct acpi_table_fadt)) {
ACPI_WARNING((AE_INFO,
sizeof(struct acpi_table_fadt)));
}
- /* Copy the entire FADT locally. Zero first for tb_convert_fadt */
+ /* Clear the entire local FADT */
ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
+ /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
+
ACPI_MEMCPY(&acpi_gbl_FADT, table,
ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
* RETURN: None
*
* DESCRIPTION: Converts all versions of the FADT to a common internal format.
- * -> Expand all 32-bit addresses to 64-bit.
+ * Expand all 32-bit addresses to 64-bit.
*
* NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt),
* and must contain a copy of the actual FADT.
}
/*
- * Expand the 32-bit V1.0 addresses to the 64-bit "X" generic address
- * structures as necessary.
+ * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which
+ * should be zero are indeed zero. This will workaround BIOSs that
+ * inadvertently place values in these fields.
+ *
+ * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
+ * offset 45, 55, 95, and the word located at offset 109, 110.
+ */
+ if (acpi_gbl_FADT.header.revision < 3) {
+ acpi_gbl_FADT.preferred_profile = 0;
+ acpi_gbl_FADT.pstate_control = 0;
+ acpi_gbl_FADT.cst_control = 0;
+ acpi_gbl_FADT.boot_flags = 0;
+ }
+
+ /*
+ * Expand the ACPI 1.0 32-bit V1.0 addresses to the ACPI 2.0 64-bit "X"
+ * generic address structures as necessary.
*/
for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
target =
acpi_gbl_FADT.xpm1a_event_block.space_id;
}
-
- /*
- * For ACPI 1.0 FADTs, ensure that reserved fields (which should be zero)
- * are indeed zero. This will workaround BIOSs that inadvertently placed
- * values in these fields.
- */
- if (acpi_gbl_FADT.header.revision < 3) {
- acpi_gbl_FADT.preferred_profile = 0;
- acpi_gbl_FADT.pstate_control = 0;
- acpi_gbl_FADT.cst_control = 0;
- acpi_gbl_FADT.boot_flags = 0;
- }
}
/******************************************************************************
static char *acpi_interfaces_supported[] = {
/* Operating System Vendor Strings */
- "Windows 2000",
- "Windows 2001",
- "Windows 2001 SP0",
- "Windows 2001 SP1",
- "Windows 2001 SP2",
- "Windows 2001 SP3",
- "Windows 2001 SP4",
- "Windows 2001.1",
- "Windows 2001.1 SP1", /* Added 03/2006 */
- "Windows 2006", /* Added 03/2006 */
+ "Windows 2000", /* Windows 2000 */
+ "Windows 2001", /* Windows XP */
+ "Windows 2001 SP1", /* Windows XP SP1 */
+ "Windows 2001 SP2", /* Windows XP SP2 */
+ "Windows 2001.1", /* Windows Server 2003 */
+ "Windows 2001.1 SP1", /* Windows Server 2003 SP1 - Added 03/2006 */
+ "Windows 2006", /* Windows Vista - Added 03/2006 */
/* Feature Group Strings */
#include <linux/seq_file.h>
#include <linux/backlight.h>
+#include <linux/video_output.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
struct acpi_device *dev;
struct acpi_video_device_brightness *brightness;
struct backlight_device *backlight;
+ struct output_device *output_dev;
};
/* bus */
u32 level_current, u32 event);
static void acpi_video_switch_brightness(struct acpi_video_device *device,
int event);
+static int acpi_video_device_get_state(struct acpi_video_device *device,
+ unsigned long *state);
+static int acpi_video_output_get(struct output_device *od);
+static int acpi_video_device_set_state(struct acpi_video_device *device, int state);
/*backlight device sysfs support*/
static int acpi_video_get_brightness(struct backlight_device *bd)
.update_status = acpi_video_set_brightness,
};
+/*video output device sysfs support*/
+static int acpi_video_output_get(struct output_device *od)
+{
+ unsigned long state;
+ struct acpi_video_device *vd =
+ (struct acpi_video_device *)class_get_devdata(&od->class_dev);
+ acpi_video_device_get_state(vd, &state);
+ return (int)state;
+}
+
+static int acpi_video_output_set(struct output_device *od)
+{
+ unsigned long state = od->request_state;
+ struct acpi_video_device *vd=
+ (struct acpi_video_device *)class_get_devdata(&od->class_dev);
+ return acpi_video_device_set_state(vd, state);
+}
+
+static struct output_properties acpi_output_properties = {
+ .set_state = acpi_video_output_set,
+ .get_status = acpi_video_output_get,
+};
/* --------------------------------------------------------------------------
Video Management
-------------------------------------------------------------------------- */
static void acpi_video_device_find_cap(struct acpi_video_device *device)
{
- acpi_integer status;
acpi_handle h_dummy1;
int i;
u32 max_level = 0;
device->cap._DSS = 1;
}
- status = acpi_video_device_lcd_query_levels(device, &obj);
-
- if (obj && obj->type == ACPI_TYPE_PACKAGE && obj->package.count >= 2) {
- int count = 0;
- union acpi_object *o;
-
- br = kzalloc(sizeof(*br), GFP_KERNEL);
- if (!br) {
- printk(KERN_ERR "can't allocate memory\n");
- } else {
- br->levels = kmalloc(obj->package.count *
- sizeof *(br->levels), GFP_KERNEL);
- if (!br->levels)
- goto out;
-
- for (i = 0; i < obj->package.count; i++) {
- o = (union acpi_object *)&obj->package.
- elements[i];
- if (o->type != ACPI_TYPE_INTEGER) {
- printk(KERN_ERR PREFIX "Invalid data\n");
- continue;
- }
- br->levels[count] = (u32) o->integer.value;
- if (br->levels[count] > max_level)
- max_level = br->levels[count];
- count++;
- }
- out:
- if (count < 2) {
- kfree(br->levels);
- kfree(br);
+ if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {
+
+ if (obj->package.count >= 2) {
+ int count = 0;
+ union acpi_object *o;
+
+ br = kzalloc(sizeof(*br), GFP_KERNEL);
+ if (!br) {
+ printk(KERN_ERR "can't allocate memory\n");
} else {
- br->count = count;
- device->brightness = br;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "found %d brightness levels\n",
- count));
+ br->levels = kmalloc(obj->package.count *
+ sizeof *(br->levels), GFP_KERNEL);
+ if (!br->levels)
+ goto out;
+
+ for (i = 0; i < obj->package.count; i++) {
+ o = (union acpi_object *)&obj->package.
+ elements[i];
+ if (o->type != ACPI_TYPE_INTEGER) {
+ printk(KERN_ERR PREFIX "Invalid data\n");
+ continue;
+ }
+ br->levels[count] = (u32) o->integer.value;
+
+ if (br->levels[count] > max_level)
+ max_level = br->levels[count];
+ count++;
+ }
+ out:
+ if (count < 2) {
+ kfree(br->levels);
+ kfree(br);
+ } else {
+ br->count = count;
+ device->brightness = br;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "found %d brightness levels\n",
+ count));
+ }
}
}
+
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n"));
}
kfree(obj);
- if (device->cap._BCL && device->cap._BCM && device->cap._BQC){
+ if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
unsigned long tmp;
static int count = 0;
char *name;
kfree(name);
}
+ if (device->cap._DCS && device->cap._DSS){
+ static int count = 0;
+ char *name;
+ name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
+ if (!name)
+ return;
+ sprintf(name, "acpi_video%d", count++);
+ device->output_dev = video_output_register(name,
+ NULL, device, &acpi_output_properties);
+ kfree(name);
+ }
return;
}
ACPI_DEVICE_NOTIFY,
acpi_video_device_notify);
backlight_device_unregister(device->backlight);
+ video_output_unregister(device->output_dev);
return 0;
}
depends on X86 && ACPI
select BACKLIGHT_CLASS_DEVICE
select HWMON
+ select NVRAM
---help---
This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
support for Fn-Fx key combinations, Bluetooth control, video
If you are not sure, say Y here.
+config THINKPAD_ACPI_INPUT_ENABLED
+ bool "Enable input layer support by default"
+ depends on THINKPAD_ACPI
+ default y
+ ---help---
+ Enables hot key handling over the input layer by default. If unset,
+ the driver does not enable any hot key handling by default, and also
+ starts up with a mostly empty keymap.
+
+ If you are not sure, say Y here. Say N to retain the deprecated
+ behavior of ibm-acpi, and thinkpad-acpi for kernels up to 2.6.21.
+
+
endif # MISC_DEVICES
int key;
};
-/* Correspondance table between sonypi events and input layer events */
-static struct {
- int sonypiev;
- int inputev;
-} sony_laptop_inputkeys[] = {
- { SONYPI_EVENT_CAPTURE_PRESSED, KEY_CAMERA },
- { SONYPI_EVENT_FNKEY_ONLY, KEY_FN },
- { SONYPI_EVENT_FNKEY_ESC, KEY_FN_ESC },
- { SONYPI_EVENT_FNKEY_F1, KEY_FN_F1 },
- { SONYPI_EVENT_FNKEY_F2, KEY_FN_F2 },
- { SONYPI_EVENT_FNKEY_F3, KEY_FN_F3 },
- { SONYPI_EVENT_FNKEY_F4, KEY_FN_F4 },
- { SONYPI_EVENT_FNKEY_F5, KEY_FN_F5 },
- { SONYPI_EVENT_FNKEY_F6, KEY_FN_F6 },
- { SONYPI_EVENT_FNKEY_F7, KEY_FN_F7 },
- { SONYPI_EVENT_FNKEY_F8, KEY_FN_F8 },
- { SONYPI_EVENT_FNKEY_F9, KEY_FN_F9 },
- { SONYPI_EVENT_FNKEY_F10, KEY_FN_F10 },
- { SONYPI_EVENT_FNKEY_F11, KEY_FN_F11 },
- { SONYPI_EVENT_FNKEY_F12, KEY_FN_F12 },
- { SONYPI_EVENT_FNKEY_1, KEY_FN_1 },
- { SONYPI_EVENT_FNKEY_2, KEY_FN_2 },
- { SONYPI_EVENT_FNKEY_D, KEY_FN_D },
- { SONYPI_EVENT_FNKEY_E, KEY_FN_E },
- { SONYPI_EVENT_FNKEY_F, KEY_FN_F },
- { SONYPI_EVENT_FNKEY_S, KEY_FN_S },
- { SONYPI_EVENT_FNKEY_B, KEY_FN_B },
- { SONYPI_EVENT_BLUETOOTH_PRESSED, KEY_BLUE },
- { SONYPI_EVENT_BLUETOOTH_ON, KEY_BLUE },
- { SONYPI_EVENT_PKEY_P1, KEY_PROG1 },
- { SONYPI_EVENT_PKEY_P2, KEY_PROG2 },
- { SONYPI_EVENT_PKEY_P3, KEY_PROG3 },
- { SONYPI_EVENT_BACK_PRESSED, KEY_BACK },
- { SONYPI_EVENT_HELP_PRESSED, KEY_HELP },
- { SONYPI_EVENT_ZOOM_PRESSED, KEY_ZOOM },
- { SONYPI_EVENT_THUMBPHRASE_PRESSED, BTN_THUMB },
- { 0, 0 },
+/* Correspondance table between sonypi events
+ * and input layer indexes in the keymap
+ */
+static int sony_laptop_input_index[] = {
+ -1, /* no event */
+ -1, /* SONYPI_EVENT_JOGDIAL_DOWN */
+ -1, /* SONYPI_EVENT_JOGDIAL_UP */
+ -1, /* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
+ -1, /* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
+ -1, /* SONYPI_EVENT_JOGDIAL_PRESSED */
+ -1, /* SONYPI_EVENT_JOGDIAL_RELEASED */
+ 0, /* SONYPI_EVENT_CAPTURE_PRESSED */
+ 1, /* SONYPI_EVENT_CAPTURE_RELEASED */
+ 2, /* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
+ 3, /* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
+ 4, /* SONYPI_EVENT_FNKEY_ESC */
+ 5, /* SONYPI_EVENT_FNKEY_F1 */
+ 6, /* SONYPI_EVENT_FNKEY_F2 */
+ 7, /* SONYPI_EVENT_FNKEY_F3 */
+ 8, /* SONYPI_EVENT_FNKEY_F4 */
+ 9, /* SONYPI_EVENT_FNKEY_F5 */
+ 10, /* SONYPI_EVENT_FNKEY_F6 */
+ 11, /* SONYPI_EVENT_FNKEY_F7 */
+ 12, /* SONYPI_EVENT_FNKEY_F8 */
+ 13, /* SONYPI_EVENT_FNKEY_F9 */
+ 14, /* SONYPI_EVENT_FNKEY_F10 */
+ 15, /* SONYPI_EVENT_FNKEY_F11 */
+ 16, /* SONYPI_EVENT_FNKEY_F12 */
+ 17, /* SONYPI_EVENT_FNKEY_1 */
+ 18, /* SONYPI_EVENT_FNKEY_2 */
+ 19, /* SONYPI_EVENT_FNKEY_D */
+ 20, /* SONYPI_EVENT_FNKEY_E */
+ 21, /* SONYPI_EVENT_FNKEY_F */
+ 22, /* SONYPI_EVENT_FNKEY_S */
+ 23, /* SONYPI_EVENT_FNKEY_B */
+ 24, /* SONYPI_EVENT_BLUETOOTH_PRESSED */
+ 25, /* SONYPI_EVENT_PKEY_P1 */
+ 26, /* SONYPI_EVENT_PKEY_P2 */
+ 27, /* SONYPI_EVENT_PKEY_P3 */
+ 28, /* SONYPI_EVENT_BACK_PRESSED */
+ -1, /* SONYPI_EVENT_LID_CLOSED */
+ -1, /* SONYPI_EVENT_LID_OPENED */
+ 29, /* SONYPI_EVENT_BLUETOOTH_ON */
+ 30, /* SONYPI_EVENT_BLUETOOTH_OFF */
+ 31, /* SONYPI_EVENT_HELP_PRESSED */
+ 32, /* SONYPI_EVENT_FNKEY_ONLY */
+ 33, /* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
+ 34, /* SONYPI_EVENT_JOGDIAL_FAST_UP */
+ 35, /* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
+ 36, /* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
+ 37, /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
+ 38, /* SONYPI_EVENT_JOGDIAL_VFAST_UP */
+ 39, /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
+ 40, /* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
+ 41, /* SONYPI_EVENT_ZOOM_PRESSED */
+ 42, /* SONYPI_EVENT_THUMBPHRASE_PRESSED */
+ 43, /* SONYPI_EVENT_MEYE_FACE */
+ 44, /* SONYPI_EVENT_MEYE_OPPOSITE */
+ 45, /* SONYPI_EVENT_MEMORYSTICK_INSERT */
+ 46, /* SONYPI_EVENT_MEMORYSTICK_EJECT */
+ -1, /* SONYPI_EVENT_ANYBUTTON_RELEASED */
+ -1, /* SONYPI_EVENT_BATTERY_INSERT */
+ -1, /* SONYPI_EVENT_BATTERY_REMOVE */
+ -1, /* SONYPI_EVENT_FNKEY_RELEASED */
+ 47, /* SONYPI_EVENT_WIRELESS_ON */
+ 48, /* SONYPI_EVENT_WIRELESS_OFF */
+};
+
+static int sony_laptop_input_keycode_map[] = {
+ KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
+ KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
+ KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
+ KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
+ KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
+ KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
+ KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
+ KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
+ KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
+ KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
+ KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
+ KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
+ KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
+ KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
+ KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
+ KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
+ KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
+ KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
+ KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
+ KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
+ KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
+ KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
+ KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
+ KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
+ KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
+ KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
+ KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
+ KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
+ KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
+ KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
+ KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
+ KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
+ KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
+ KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
+ KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
+ KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
+ KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
+ KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
+ KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
+ KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
+ KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
+ KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
+ BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
+ KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
+ KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
+ KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
+ KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
+ KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
+ KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
};
/* release buttons after a short delay if pressed */
struct input_dev *jog_dev = sony_laptop_input.jog_dev;
struct input_dev *key_dev = sony_laptop_input.key_dev;
struct sony_laptop_keypress kp = { NULL };
- int i;
if (event == SONYPI_EVENT_FNKEY_RELEASED) {
/* Nothing, not all VAIOs generate this event */
break;
default:
- for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
- if (event == sony_laptop_inputkeys[i].sonypiev) {
+ if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
+ dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
+ break;
+ }
+ if (sony_laptop_input_index[event] != -1) {
+ kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
+ if (kp.key != KEY_UNKNOWN)
kp.dev = key_dev;
- kp.key = sony_laptop_inputkeys[i].inputev;
- break;
- }
+ }
break;
}
if (kp.dev) {
input_report_key(kp.dev, kp.key, 1);
+ /* we emit the scancode so we can always remap the key */
+ input_event(kp.dev, EV_MSC, MSC_SCAN, event);
input_sync(kp.dev);
kfifo_put(sony_laptop_input.fifo,
(unsigned char *)&kp, sizeof(kp));
key_dev->id.vendor = PCI_VENDOR_ID_SONY;
/* Initialize the Input Drivers: special keys */
- key_dev->evbit[0] = BIT(EV_KEY);
- for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
- if (sony_laptop_inputkeys[i].inputev)
- set_bit(sony_laptop_inputkeys[i].inputev,
- key_dev->keybit);
+ set_bit(EV_KEY, key_dev->evbit);
+ set_bit(EV_MSC, key_dev->evbit);
+ set_bit(MSC_SCAN, key_dev->mscbit);
+ key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
+ key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
+ key_dev->keycode = &sony_laptop_input_keycode_map;
+ for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
+ if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
+ set_bit(sony_laptop_input_keycode_map[i],
+ key_dev->keybit);
+ }
+ }
error = input_register_device(key_dev);
if (error)
SNC_HANDLE_NAMES(lanpower_get, "GLNP");
SNC_HANDLE_NAMES(lanpower_set, "LNPW");
+SNC_HANDLE_NAMES(lidstate_get, "GLID");
+
+SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
+SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
+
+SNC_HANDLE_NAMES(gainbass_get, "GMGB");
+SNC_HANDLE_NAMES(gainbass_set, "CMGB");
+
SNC_HANDLE_NAMES(PID_get, "GPID");
SNC_HANDLE_NAMES(CTR_get, "GCTR");
boolean_validate, 0),
SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
boolean_validate, 1),
+ SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
+ boolean_validate, 0),
+ SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
+ boolean_validate, 0),
+ SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
+ boolean_validate, 0),
/* unknown methods */
SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
.get_brightness = sony_backlight_get_brightness,
};
+/*
+ * New SNC-only Vaios event mapping to driver known keys
+ */
+struct sony_nc_event {
+ u8 data;
+ u8 event;
+};
+
+static struct sony_nc_event *sony_nc_events;
+
+/* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
+ * for Fn keys
+ */
+static int sony_nc_C_enable(struct dmi_system_id *id)
+{
+ int result = 0;
+
+ printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
+
+ sony_nc_events = id->driver_data;
+
+ if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
+ || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
+ || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
+ || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
+ || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
+ || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
+ printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
+ "functionalities may be missing\n");
+ return 1;
+ }
+ return 0;
+}
+
+static struct sony_nc_event sony_C_events[] = {
+ { 0x81, SONYPI_EVENT_FNKEY_F1 },
+ { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0x85, SONYPI_EVENT_FNKEY_F5 },
+ { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0x86, SONYPI_EVENT_FNKEY_F6 },
+ { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0x87, SONYPI_EVENT_FNKEY_F7 },
+ { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0x8A, SONYPI_EVENT_FNKEY_F10 },
+ { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0x8C, SONYPI_EVENT_FNKEY_F12 },
+ { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
+ { 0, 0 },
+};
+
+/* SNC-only model map */
+struct dmi_system_id sony_nc_ids[] = {
+ {
+ .ident = "Sony Vaio FE Series",
+ .callback = sony_nc_C_enable,
+ .driver_data = sony_C_events,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
+ },
+ },
+ {
+ .ident = "Sony Vaio C Series",
+ .callback = sony_nc_C_enable,
+ .driver_data = sony_C_events,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
+ },
+ },
+ { }
+};
+
/*
* ACPI callbacks
*/
static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
{
- dprintk("sony_acpi_notify, event: %d\n", event);
- sony_laptop_report_input_event(event);
- acpi_bus_generate_event(sony_nc_acpi_device, 1, event);
+ struct sony_nc_event *evmap;
+ u32 ev = event;
+ int result;
+
+ if (ev == 0x92) {
+ /* read the key pressed from EC.GECR
+ * A call to SN07 with 0x0202 will do it as well respecting
+ * the current protocol on different OSes
+ *
+ * Note: the path for GECR may be
+ * \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
+ * \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
+ *
+ * TODO: we may want to do the same for the older GHKE -need
+ * dmi list- so this snippet may become one more callback.
+ */
+ if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
+ dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
+ else
+ ev = result & 0xFF;
+ }
+
+ if (sony_nc_events)
+ for (evmap = sony_nc_events; evmap->event; evmap++) {
+ if (evmap->data == ev) {
+ ev = evmap->event;
+ break;
+ }
+ }
+
+ dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
+ sony_laptop_report_input_event(ev);
+ acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
}
static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
break;
}
}
+
+ /* re-initialize models with specific requirements */
+ dmi_check_system(sony_nc_ids);
+
return 0;
}
sony_nc_acpi_handle = device->handle;
+ /* read device status */
+ result = acpi_bus_get_status(device);
+ /* bail IFF the above call was successful and the device is not present */
+ if (!result && !device->status.present) {
+ dprintk("Device not present\n");
+ result = -ENODEV;
+ goto outwalk;
+ }
+
if (debug) {
status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1, sony_walk_callback, NULL, NULL);
}
}
+ /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
+ * should be respected as we already checked for the device presence above */
+ if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
+ dprintk("Invoking _INI\n");
+ if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
+ NULL, NULL)))
+ dprintk("_INI Method failed\n");
+ }
+
/* setup input devices and helper fifo */
result = sony_laptop_setup_input();
if (result) {
ACPI_DEVICE_NOTIFY,
sony_acpi_notify, NULL);
if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING DRV_PFX "unable to install notify handler\n");
+ printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
result = -ENODEV;
goto outinput;
}
}
+ /* initialize models with specific requirements */
+ dmi_check_system(sony_nc_ids);
+
result = sony_pf_add();
if (result)
goto outbacklight;
#define SONYPI_DEVICE_TYPE2 0x00000002
#define SONYPI_DEVICE_TYPE3 0x00000004
-#define SONY_PIC_EV_MASK 0xff
+#define SONYPI_TYPE1_OFFSET 0x04
+#define SONYPI_TYPE2_OFFSET 0x12
+#define SONYPI_TYPE3_OFFSET 0x12
struct sony_pic_ioport {
struct acpi_resource_io io;
struct sony_pic_dev {
int model;
+ u16 evport_offset;
u8 camera_power;
u8 bluetooth_power;
u8 wwan_power;
static irqreturn_t sony_pic_irq(int irq, void *dev_id)
{
int i, j;
- u32 port_val = 0;
u8 ev = 0;
u8 data_mask = 0;
u8 device_event = 0;
struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
- acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
- dev->cur_ioport->io.address_length);
- ev = port_val & SONY_PIC_EV_MASK;
- data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
+ ev = inb_p(dev->cur_ioport->io.minimum);
+ data_mask = inb_p(dev->cur_ioport->io.minimum + dev->evport_offset);
- dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
- port_val, ev, data_mask, dev->cur_ioport->io.minimum);
+ dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
+ ev, data_mask, dev->cur_ioport->io.minimum, dev->evport_offset);
if (ev == 0x00 || ev == 0xff)
return IRQ_HANDLED;
spic_dev.model = sony_pic_detect_device_type();
mutex_init(&spic_dev.lock);
+ /* model specific characteristics */
+ switch(spic_dev.model) {
+ case SONYPI_DEVICE_TYPE1:
+ spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
+ break;
+ case SONYPI_DEVICE_TYPE3:
+ spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
+ break;
+ case SONYPI_DEVICE_TYPE2:
+ default:
+ spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
+ break;
+ }
+
/* read _PRS resources */
result = sony_pic_possible_resources(device);
if (result) {
* 02110-1301, USA.
*/
-#define IBM_VERSION "0.14"
-#define TPACPI_SYSFS_VERSION 0x000100
+#define IBM_VERSION "0.15"
+#define TPACPI_SYSFS_VERSION 0x010000
/*
* Changelog:
/* Please remove this in year 2009 */
MODULE_ALIAS("ibm_acpi");
+/*
+ * DMI matching for module autoloading
+ *
+ * See http://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
+ *
+ * Only models listed in thinkwiki will be supported, so add yours
+ * if it is not there yet.
+ */
+#define IBM_BIOS_MODULE_ALIAS(__type) \
+ MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
+
+/* Non-ancient thinkpads */
+MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
+MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
+
+/* 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]");
+
#define __unused __attribute__ ((unused))
/****************************************************************************
* ACPI basic handles
*/
-static acpi_handle root_handle = NULL;
+static acpi_handle root_handle;
#define IBM_HANDLE(object, parent, paths...) \
static acpi_handle object##_handle; \
/****************************************************************************
****************************************************************************
*
- * Device model: hwmon and platform
+ * Device model: input, hwmon and platform
*
****************************************************************************
****************************************************************************/
-static struct platform_device *tpacpi_pdev = NULL;
-static struct class_device *tpacpi_hwmon = NULL;
+static struct platform_device *tpacpi_pdev;
+static struct class_device *tpacpi_hwmon;
+static struct input_dev *tpacpi_inputdev;
+
+
+static int tpacpi_resume_handler(struct platform_device *pdev)
+{
+ struct ibm_struct *ibm, *itmp;
+
+ list_for_each_entry_safe(ibm, itmp,
+ &tpacpi_all_drivers,
+ all_drivers) {
+ if (ibm->resume)
+ (ibm->resume)();
+ }
+
+ return 0;
+}
static struct platform_driver tpacpi_pdriver = {
.driver = {
.name = IBM_DRVR_NAME,
.owner = THIS_MODULE,
},
+ .resume = tpacpi_resume_handler,
};
printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION);
printk(IBM_INFO "%s\n", IBM_URL);
- if (ibm_thinkpad_ec_found)
- printk(IBM_INFO "ThinkPad EC firmware %s\n",
- ibm_thinkpad_ec_found);
+ printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n",
+ (thinkpad_id.bios_version_str) ?
+ thinkpad_id.bios_version_str : "unknown",
+ (thinkpad_id.ec_version_str) ?
+ thinkpad_id.ec_version_str : "unknown");
+
+ if (thinkpad_id.vendor && thinkpad_id.model_str)
+ printk(IBM_INFO "%s %s\n",
+ (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
+ "IBM" : ((thinkpad_id.vendor ==
+ PCI_VENDOR_ID_LENOVO) ?
+ "Lenovo" : "Unknown vendor"),
+ thinkpad_id.model_str);
return 0;
}
*/
static int hotkey_orig_status;
-static int hotkey_orig_mask;
+static u32 hotkey_orig_mask;
+static u32 hotkey_all_mask;
+static u32 hotkey_reserved_mask;
+
+static u16 *hotkey_keycode_map;
-static struct attribute_set *hotkey_dev_attributes = NULL;
+static struct attribute_set *hotkey_dev_attributes;
+
+static int hotkey_get_wlsw(int *status)
+{
+ if (!acpi_evalf(hkey_handle, status, "WLSW", "d"))
+ return -EIO;
+ return 0;
+}
/* sysfs hotkey enable ------------------------------------------------- */
static ssize_t hotkey_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- int res, status, mask;
+ int res, status;
+ u32 mask;
res = hotkey_get(&status, &mask);
if (res)
const char *buf, size_t count)
{
unsigned long t;
- int res, status, mask;
+ int res, status;
+ u32 mask;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
struct device_attribute *attr,
char *buf)
{
- int res, status, mask;
+ int res, status;
+ u32 mask;
res = hotkey_get(&status, &mask);
if (res)
return res;
- return snprintf(buf, PAGE_SIZE, "0x%04x\n", mask);
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask);
}
static ssize_t hotkey_mask_store(struct device *dev,
const char *buf, size_t count)
{
unsigned long t;
- int res, status, mask;
+ int res, status;
+ u32 mask;
- if (parse_strtoul(buf, 0xffff, &t))
+ if (parse_strtoul(buf, 0xffffffffUL, &t))
return -EINVAL;
res = hotkey_get(&status, &mask);
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "0x%04x\n", hotkey_orig_mask);
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask);
}
static struct device_attribute dev_attr_hotkey_bios_mask =
__ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL);
+/* sysfs hotkey all_mask ----------------------------------------------- */
+static ssize_t hotkey_all_mask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask);
+}
+
+static struct device_attribute dev_attr_hotkey_all_mask =
+ __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL);
+
+/* sysfs hotkey recommended_mask --------------------------------------- */
+static ssize_t hotkey_recommended_mask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n",
+ hotkey_all_mask & ~hotkey_reserved_mask);
+}
+
+static struct device_attribute dev_attr_hotkey_recommended_mask =
+ __ATTR(hotkey_recommended_mask, S_IRUGO,
+ hotkey_recommended_mask_show, NULL);
+
+/* sysfs hotkey radio_sw ----------------------------------------------- */
+static ssize_t hotkey_radio_sw_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int res, s;
+ res = hotkey_get_wlsw(&s);
+ if (res < 0)
+ return res;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", !!s);
+}
+
+static struct device_attribute dev_attr_hotkey_radio_sw =
+ __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL);
+
/* --------------------------------------------------------------------- */
static struct attribute *hotkey_mask_attributes[] = {
&dev_attr_hotkey_mask.attr,
&dev_attr_hotkey_bios_enabled.attr,
&dev_attr_hotkey_bios_mask.attr,
+ &dev_attr_hotkey_all_mask.attr,
+ &dev_attr_hotkey_recommended_mask.attr,
};
static int __init hotkey_init(struct ibm_init_struct *iibm)
{
- int res;
+
+ static u16 ibm_keycode_map[] __initdata = {
+ /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
+ KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP,
+ KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
+ KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
+ /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
+ KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
+ KEY_UNKNOWN, /* 0x0D: FN+INSERT */
+ KEY_UNKNOWN, /* 0x0E: FN+DELETE */
+ KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
+ /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
+ KEY_RESERVED, /* 0x10: FN+END (brightness down) */
+ KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
+ KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
+ KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
+ KEY_RESERVED, /* 0x14: VOLUME UP */
+ KEY_RESERVED, /* 0x15: VOLUME DOWN */
+ KEY_RESERVED, /* 0x16: MUTE */
+ KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
+ /* (assignments unknown, please report if found) */
+ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+ };
+ static u16 lenovo_keycode_map[] __initdata = {
+ /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
+ KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP,
+ KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
+ KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
+ /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
+ KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
+ KEY_UNKNOWN, /* 0x0D: FN+INSERT */
+ KEY_UNKNOWN, /* 0x0E: FN+DELETE */
+ KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */
+ /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
+ KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */
+ KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
+ KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
+ KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
+ KEY_RESERVED, /* 0x14: VOLUME UP */
+ KEY_RESERVED, /* 0x15: VOLUME DOWN */
+ KEY_RESERVED, /* 0x16: MUTE */
+ KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
+ /* (assignments unknown, please report if found) */
+ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+ };
+
+#define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map)
+#define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map)
+#define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0])
+
+ int res, i;
+ int status;
vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
+ BUG_ON(!tpacpi_inputdev);
+
IBM_ACPIHANDLE_INIT(hkey);
mutex_init(&hotkey_mutex);
str_supported(tp_features.hotkey));
if (tp_features.hotkey) {
- hotkey_dev_attributes = create_attr_set(4, NULL);
+ hotkey_dev_attributes = create_attr_set(7, NULL);
if (!hotkey_dev_attributes)
return -ENOMEM;
res = add_to_attr_set(hotkey_dev_attributes,
vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
+ if (tp_features.hotkey_mask) {
+ /* MHKA available in A31, R40, R40e, T4x, X31, and later */
+ if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
+ "MHKA", "qd"))
+ hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
+ }
+
res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
if (!res && tp_features.hotkey_mask) {
res = add_many_to_attr_set(hotkey_dev_attributes,
hotkey_mask_attributes,
ARRAY_SIZE(hotkey_mask_attributes));
}
+
+ /* Not all thinkpads have a hardware radio switch */
+ if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
+ tp_features.hotkey_wlsw = 1;
+ printk(IBM_INFO
+ "radio switch found; radios are %s\n",
+ enabled(status, 0));
+ res = add_to_attr_set(hotkey_dev_attributes,
+ &dev_attr_hotkey_radio_sw.attr);
+ }
+
if (!res)
res = register_attr_set_with_sysfs(
hotkey_dev_attributes,
&tpacpi_pdev->dev.kobj);
+ if (res)
+ return res;
+
+ /* Set up key map */
+
+ hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE,
+ GFP_KERNEL);
+ if (!hotkey_keycode_map) {
+ printk(IBM_ERR "failed to allocate memory for key map\n");
+ return -ENOMEM;
+ }
+
+ if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
+ dbg_printk(TPACPI_DBG_INIT,
+ "using Lenovo default hot key map\n");
+ memcpy(hotkey_keycode_map, &lenovo_keycode_map,
+ TPACPI_HOTKEY_MAP_SIZE);
+ } else {
+ dbg_printk(TPACPI_DBG_INIT,
+ "using IBM default hot key map\n");
+ memcpy(hotkey_keycode_map, &ibm_keycode_map,
+ TPACPI_HOTKEY_MAP_SIZE);
+ }
+#ifndef CONFIG_THINKPAD_ACPI_INPUT_ENABLED
+ for (i = 0; i < 12; i++)
+ hotkey_keycode_map[i] = KEY_UNKNOWN;
+#endif /* ! CONFIG_THINKPAD_ACPI_INPUT_ENABLED */
+
+ set_bit(EV_KEY, tpacpi_inputdev->evbit);
+ set_bit(EV_MSC, tpacpi_inputdev->evbit);
+ set_bit(MSC_SCAN, tpacpi_inputdev->mscbit);
+ tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
+ tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN;
+ tpacpi_inputdev->keycode = hotkey_keycode_map;
+ for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) {
+ if (hotkey_keycode_map[i] != KEY_RESERVED) {
+ set_bit(hotkey_keycode_map[i],
+ tpacpi_inputdev->keybit);
+ } else {
+ if (i < sizeof(hotkey_reserved_mask)*8)
+ hotkey_reserved_mask |= 1 << i;
+ }
+ }
+
+ if (tp_features.hotkey_wlsw) {
+ set_bit(EV_SW, tpacpi_inputdev->evbit);
+ set_bit(SW_RADIO, tpacpi_inputdev->swbit);
+ }
+
+#ifdef CONFIG_THINKPAD_ACPI_INPUT_ENABLED
+ dbg_printk(TPACPI_DBG_INIT,
+ "enabling hot key handling\n");
+ res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask)
+ | hotkey_orig_mask);
if (res)
return res;
+#endif /* CONFIG_THINKPAD_ACPI_INPUT_ENABLED */
}
return (tp_features.hotkey)? 0 : 1;
}
}
+static void tpacpi_input_send_key(unsigned int scancode,
+ unsigned int keycode)
+{
+ if (keycode != KEY_RESERVED) {
+ input_report_key(tpacpi_inputdev, keycode, 1);
+ if (keycode == KEY_UNKNOWN)
+ input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
+ scancode);
+ input_sync(tpacpi_inputdev);
+
+ input_report_key(tpacpi_inputdev, keycode, 0);
+ if (keycode == KEY_UNKNOWN)
+ input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
+ scancode);
+ input_sync(tpacpi_inputdev);
+ }
+}
+
+static void tpacpi_input_send_radiosw(void)
+{
+ int wlsw;
+
+ if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw))
+ input_report_switch(tpacpi_inputdev,
+ SW_RADIO, !!wlsw);
+}
+
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
- int hkey;
+ u32 hkey;
+ unsigned int keycode, scancode;
+ int sendacpi = 1;
+
+ if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
+ if (tpacpi_inputdev->users > 0) {
+ switch (hkey >> 12) {
+ case 1:
+ /* 0x1000-0x1FFF: key presses */
+ scancode = hkey & 0xfff;
+ if (scancode > 0 && scancode < 0x21) {
+ scancode--;
+ keycode = hotkey_keycode_map[scancode];
+ tpacpi_input_send_key(scancode, keycode);
+ sendacpi = (keycode == KEY_RESERVED
+ || keycode == KEY_UNKNOWN);
+ } else {
+ printk(IBM_ERR
+ "hotkey 0x%04x out of range for keyboard map\n",
+ hkey);
+ }
+ break;
+ case 5:
+ /* 0x5000-0x5FFF: LID */
+ /* we don't handle it through this path, just
+ * eat up known LID events */
+ if (hkey != 0x5001 && hkey != 0x5002) {
+ printk(IBM_ERR
+ "unknown LID-related hotkey event: 0x%04x\n",
+ hkey);
+ }
+ break;
+ case 7:
+ /* 0x7000-0x7FFF: misc */
+ if (tp_features.hotkey_wlsw && hkey == 0x7000) {
+ tpacpi_input_send_radiosw();
+ sendacpi = 0;
+ break;
+ }
+ /* 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) */
+ printk(IBM_NOTICE "unhandled hotkey event 0x%04x\n", hkey);
+ }
+ }
- if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d"))
- acpi_bus_generate_event(ibm->acpi->device, event, hkey);
- else {
- printk(IBM_ERR "unknown hotkey event %d\n", event);
+ if (sendacpi)
+ acpi_bus_generate_event(ibm->acpi->device, event, hkey);
+ } else {
+ printk(IBM_ERR "unknown hotkey notification event %d\n", event);
acpi_bus_generate_event(ibm->acpi->device, event, 0);
}
}
+static void hotkey_resume(void)
+{
+ tpacpi_input_send_radiosw();
+}
+
/*
* Call with hotkey_mutex held
*/
-static int hotkey_get(int *status, int *mask)
+static int hotkey_get(int *status, u32 *mask)
{
if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
return -EIO;
/*
* Call with hotkey_mutex held
*/
-static int hotkey_set(int status, int mask)
+static int hotkey_set(int status, u32 mask)
{
int i;
/* procfs -------------------------------------------------------------- */
static int hotkey_read(char *p)
{
- int res, status, mask;
+ int res, status;
+ u32 mask;
int len = 0;
if (!tp_features.hotkey) {
len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
if (tp_features.hotkey_mask) {
- len += sprintf(p + len, "mask:\t\t0x%04x\n", mask);
+ len += sprintf(p + len, "mask:\t\t0x%08x\n", mask);
len += sprintf(p + len,
"commands:\tenable, disable, reset, <mask>\n");
} else {
static int hotkey_write(char *buf)
{
- int res, status, mask;
+ int res, status;
+ u32 mask;
char *cmd;
int do_cmd = 0;
.read = hotkey_read,
.write = hotkey_write,
.exit = hotkey_exit,
+ .resume = hotkey_resume,
.acpi = &ibm_hotkey_acpidriver,
};
.type = ACPI_SYSTEM_NOTIFY,
},
{
- .hid = IBM_PCI_HID,
+ /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING.
+ * We just use it to get notifications of dock hotplug
+ * in very old thinkpads */
+ .hid = PCI_ROOT_HID_STRING,
.notify = dock_notify,
.handle = &pci_handle,
.type = ACPI_SYSTEM_NOTIFY,
static void dock_notify(struct ibm_struct *ibm, u32 event)
{
int docked = dock_docked();
- int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID);
+ int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, PCI_ROOT_HID_STRING);
if (event == 1 && !pci) /* 570 */
acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */
acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
- if (ibm_thinkpad_ec_found && experimental) {
+ if (thinkpad_id.ec_model) {
/*
* Direct EC access mode: sensors at registers
* 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
return -EIO;
+ if (t > 127 || t < -127)
+ t = TP_EC_THERMAL_TMP_NA;
*value = t * 1000;
return 0;
}
* Backlight/brightness subdriver
*/
-static struct backlight_device *ibm_backlight_device = NULL;
+static struct backlight_device *ibm_backlight_device;
static struct backlight_ops ibm_backlight_data = {
.get_brightness = brightness_get,
.update_status = brightness_update_status,
};
+static struct mutex brightness_mutex;
+
static int __init brightness_init(struct ibm_init_struct *iibm)
{
int b;
vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
+ mutex_init(&brightness_mutex);
+
+ if (!brightness_mode) {
+ if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO)
+ brightness_mode = 2;
+ else
+ brightness_mode = 3;
+
+ dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n",
+ brightness_mode);
+ }
+
+ if (brightness_mode > 3)
+ return -EINVAL;
+
b = brightness_get(NULL);
if (b < 0)
- return b;
+ return 1;
ibm_backlight_device = backlight_device_register(
TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
bd->props.brightness : 0);
}
+/*
+ * ThinkPads can read brightness from two places: EC 0x31, or
+ * CMOS NVRAM byte 0x5E, bits 0-3.
+ */
static int brightness_get(struct backlight_device *bd)
{
- u8 level;
- if (!acpi_ec_read(brightness_offset, &level))
- return -EIO;
+ u8 lec = 0, lcmos = 0, level = 0;
- level &= 0x7;
+ if (brightness_mode & 1) {
+ if (!acpi_ec_read(brightness_offset, &lec))
+ return -EIO;
+ lec &= 7;
+ level = lec;
+ };
+ if (brightness_mode & 2) {
+ lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
+ & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
+ >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
+ level = lcmos;
+ }
+
+ if (brightness_mode == 3 && lec != lcmos) {
+ printk(IBM_ERR
+ "CMOS NVRAM (%u) and EC (%u) do not agree "
+ "on display brightness level\n",
+ (unsigned int) lcmos,
+ (unsigned int) lec);
+ return -EIO;
+ }
return level;
}
static int brightness_set(int value)
{
- int cmos_cmd, inc, i;
- int current_value = brightness_get(NULL);
+ int cmos_cmd, inc, i, res;
+ int current_value;
+
+ if (value > 7)
+ return -EINVAL;
- value &= 7;
+ res = mutex_lock_interruptible(&brightness_mutex);
+ if (res < 0)
+ return res;
+
+ current_value = brightness_get(NULL);
+ if (current_value < 0) {
+ res = current_value;
+ goto errout;
+ }
- cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN;
+ cmos_cmd = value > current_value ?
+ TP_CMOS_BRIGHTNESS_UP :
+ TP_CMOS_BRIGHTNESS_DOWN;
inc = value > current_value ? 1 : -1;
+
+ res = 0;
for (i = current_value; i != value; i += inc) {
- if (issue_thinkpad_cmos_command(cmos_cmd))
- return -EIO;
- if (!acpi_ec_write(brightness_offset, i + inc))
- return -EIO;
+ if ((brightness_mode & 2) &&
+ issue_thinkpad_cmos_command(cmos_cmd)) {
+ res = -EIO;
+ goto errout;
+ }
+ if ((brightness_mode & 1) &&
+ !acpi_ec_write(brightness_offset, i + inc)) {
+ res = -EIO;
+ goto errout;;
+ }
}
- return 0;
+errout:
+ mutex_unlock(&brightness_mutex);
+ return res;
}
static int brightness_read(char *p)
* 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 &&
- ibm_thinkpad_ec_found &&
- ((ibm_thinkpad_ec_found[0] == '1' &&
- ibm_thinkpad_ec_found[1] == 'Y') ||
- (ibm_thinkpad_ec_found[0] == '7' &&
- (ibm_thinkpad_ec_found[1] == '6' ||
- ibm_thinkpad_ec_found[1] == '8' ||
- ibm_thinkpad_ec_found[1] == '0'))
- )) {
- printk(IBM_NOTICE
- "fan_init: initial fan status is "
- "unknown, assuming it is in auto "
- "mode\n");
- tp_features.fan_ctrl_status_undef = 1;
+ 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(IBM_NOTICE
+ "fan_init: initial fan status is "
+ "unknown, assuming it is in auto "
+ "mode\n");
+ tp_features.fan_ctrl_status_undef = 1;
+ ;;
+ }
}
} else {
printk(IBM_ERR
static void fan_watchdog_reset(void)
{
- static int fan_watchdog_active = 0;
+ static int fan_watchdog_active;
if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
return;
****************************************************************************/
/* /proc support */
-static struct proc_dir_entry *proc_dir = NULL;
+static struct proc_dir_entry *proc_dir;
/* Subdriver registry */
static LIST_HEAD(tpacpi_all_drivers);
/* Probing */
-static char *ibm_thinkpad_ec_found = NULL;
-
-static char* __init check_dmi_for_ec(void)
+static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp)
{
struct dmi_device *dev = NULL;
char ec_fw_string[18];
+ if (!tp)
+ return;
+
+ memset(tp, 0, sizeof(*tp));
+
+ if (dmi_name_in_vendors("IBM"))
+ tp->vendor = PCI_VENDOR_ID_IBM;
+ else if (dmi_name_in_vendors("LENOVO"))
+ tp->vendor = PCI_VENDOR_ID_LENOVO;
+ else
+ return;
+
+ tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION),
+ GFP_KERNEL);
+ if (!tp->bios_version_str)
+ return;
+ tp->bios_model = tp->bios_version_str[0]
+ | (tp->bios_version_str[1] << 8);
+
/*
* ThinkPad T23 or newer, A31 or newer, R50e or newer,
* X32 or newer, all Z series; Some models must have an
ec_fw_string) == 1) {
ec_fw_string[sizeof(ec_fw_string) - 1] = 0;
ec_fw_string[strcspn(ec_fw_string, " ]")] = 0;
- return kstrdup(ec_fw_string, GFP_KERNEL);
+
+ tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL);
+ tp->ec_model = ec_fw_string[0]
+ | (ec_fw_string[1] << 8);
+ break;
}
}
- return NULL;
+
+ tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION),
+ GFP_KERNEL);
+ if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) {
+ kfree(tp->model_str);
+ tp->model_str = NULL;
+ }
}
static int __init probe_for_thinkpad(void)
* Non-ancient models have better DMI tagging, but very old models
* don't.
*/
- is_thinkpad = dmi_name_in_vendors("ThinkPad");
+ is_thinkpad = (thinkpad_id.model_str != NULL);
/* ec is required because many other handles are relative to it */
IBM_ACPIHANDLE_INIT(ec);
* false positives a damn great deal
*/
if (!is_thinkpad)
- is_thinkpad = dmi_name_in_vendors("IBM");
+ is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM);
if (!is_thinkpad && !force_load)
return -ENODEV;
module_param_named(debug, dbg_level, uint, 0);
static int force_load;
-module_param(force_load, int, 0);
+module_param(force_load, bool, 0);
static int fan_control_allowed;
-module_param_named(fan_control, fan_control_allowed, int, 0);
+module_param_named(fan_control, fan_control_allowed, bool, 0);
+
+static int brightness_mode;
+module_param_named(brightness_mode, brightness_mode, int, 0);
#define IBM_PARAM(feature) \
module_param_call(feature, set_ibm_param, NULL, NULL, 0)
int ret, i;
/* Driver-level probe */
+
+ get_thinkpad_model_data(&thinkpad_id);
ret = probe_for_thinkpad();
- if (ret)
+ if (ret) {
+ thinkpad_acpi_module_exit();
return ret;
+ }
/* Driver initialization */
- ibm_thinkpad_ec_found = check_dmi_for_ec();
+
IBM_ACPIHANDLE_INIT(ecrd);
IBM_ACPIHANDLE_INIT(ecwr);
thinkpad_acpi_module_exit();
return ret;
}
+ tpacpi_inputdev = input_allocate_device();
+ if (!tpacpi_inputdev) {
+ printk(IBM_ERR "unable to allocate input device\n");
+ thinkpad_acpi_module_exit();
+ return -ENOMEM;
+ } else {
+ /* Prepare input device, but don't register */
+ tpacpi_inputdev->name = "ThinkPad Extra Buttons";
+ tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0";
+ tpacpi_inputdev->id.bustype = BUS_HOST;
+ tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ?
+ thinkpad_id.vendor :
+ PCI_VENDOR_ID_IBM;
+ tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
+ tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
+ }
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
ret = ibm_init(&ibms_init[i]);
if (ret >= 0 && *ibms_init[i].param)
return ret;
}
}
+ ret = input_register_device(tpacpi_inputdev);
+ if (ret < 0) {
+ printk(IBM_ERR "unable to register input device\n");
+ thinkpad_acpi_module_exit();
+ return ret;
+ } else {
+ tp_features.input_device_registered = 1;
+ }
return 0;
}
dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
+ if (tpacpi_inputdev) {
+ if (tp_features.input_device_registered)
+ input_unregister_device(tpacpi_inputdev);
+ else
+ input_free_device(tpacpi_inputdev);
+ }
+
if (tpacpi_hwmon)
hwmon_device_unregister(tpacpi_hwmon);
if (proc_dir)
remove_proc_entry(IBM_PROC_DIR, acpi_root_dir);
- kfree(ibm_thinkpad_ec_found);
+ kfree(thinkpad_id.bios_version_str);
+ kfree(thinkpad_id.ec_version_str);
+ kfree(thinkpad_id.model_str);
}
module_init(thinkpad_acpi_module_init);
#include <linux/list.h>
#include <linux/mutex.h>
+#include <linux/nvram.h>
#include <linux/proc_fs.h>
#include <linux/sysfs.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/input.h>
#include <asm/uaccess.h>
#include <linux/dmi.h>
#include <acpi/acpi_drivers.h>
#include <acpi/acnamesp.h>
+#include <linux/pci_ids.h>
/****************************************************************************
* Main driver
#define TP_CMOS_BRIGHTNESS_UP 4
#define TP_CMOS_BRIGHTNESS_DOWN 5
+/* ThinkPad CMOS NVRAM constants */
+#define TP_NVRAM_ADDR_BRIGHTNESS 0x5e
+#define TP_NVRAM_MASK_LEVEL_BRIGHTNESS 0x07
+#define TP_NVRAM_POS_LEVEL_BRIGHTNESS 0
+
#define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off")
#define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
#define strlencmp(a,b) (strncmp((a), (b), strlen(b)))
#define vdbg_printk(a_dbg_level, format, arg...)
#endif
+/* Input IDs */
+#define TPACPI_HKEY_INPUT_VENDOR PCI_VENDOR_ID_IBM
+#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
+#define TPACPI_HKEY_INPUT_VERSION 0x4101
+
/* ACPI HIDs */
#define IBM_HKEY_HID "IBM0068"
-#define IBM_PCI_HID "PNP0A03"
/* ACPI helpers */
static int __must_check acpi_evalf(acpi_handle handle,
static struct platform_device *tpacpi_pdev;
static struct class_device *tpacpi_hwmon;
static struct platform_driver tpacpi_pdriver;
+static struct input_dev *tpacpi_inputdev;
static int tpacpi_create_driver_attributes(struct device_driver *drv);
static void tpacpi_remove_driver_attributes(struct device_driver *drv);
static int experimental;
static u32 dbg_level;
static int force_load;
-static char *ibm_thinkpad_ec_found;
-static char* check_dmi_for_ec(void);
static int thinkpad_acpi_module_init(void);
static void thinkpad_acpi_module_exit(void);
int (*read) (char *);
int (*write) (char *);
void (*exit) (void);
+ void (*resume) (void);
struct list_head all_drivers;
u16 bluetooth:1;
u16 hotkey:1;
u16 hotkey_mask:1;
+ u16 hotkey_wlsw:1;
u16 light:1;
u16 light_status:1;
u16 wan:1;
u16 fan_ctrl_status_undef:1;
+ u16 input_device_registered:1;
} tp_features;
+struct thinkpad_id_data {
+ unsigned int vendor; /* ThinkPad vendor:
+ * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */
+
+ char *bios_version_str; /* Something like 1ZET51WW (1.03z) */
+ char *ec_version_str; /* Something like 1ZHT51WW-1.04a */
+
+ u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */
+ u16 ec_model;
+
+ char *model_str;
+};
+
+static struct thinkpad_id_data thinkpad_id;
+
static struct list_head tpacpi_all_drivers;
static struct ibm_init_struct ibms_init[];
static struct backlight_device *ibm_backlight_device;
static int brightness_offset = 0x31;
+static int brightness_mode;
static int brightness_init(struct ibm_init_struct *iibm);
static void brightness_exit(void);
*/
static int hotkey_orig_status;
-static int hotkey_orig_mask;
+static u32 hotkey_orig_mask;
static struct mutex hotkey_mutex;
static int hotkey_init(struct ibm_init_struct *iibm);
static void hotkey_exit(void);
-static int hotkey_get(int *status, int *mask);
-static int hotkey_set(int status, int mask);
+static int hotkey_get(int *status, u32 *mask);
+static int hotkey_set(int status, u32 mask);
static void hotkey_notify(struct ibm_struct *ibm, u32 event);
static int hotkey_read(char *p);
static int hotkey_write(char *buf);
tristate
default n
+config VIDEO_OUTPUT_CONTROL
+ tristate "Lowlevel video output switch controls"
+ default m
+ help
+ This framework adds support for low-level control of the video
+ output switch.
+
config FB
tristate "Support for frame buffer devices"
---help---
# the test framebuffer is last
obj-$(CONFIG_FB_VIRTUAL) += vfb.o
+
+#video output switch sysfs driver
+obj-$(CONFIG_VIDEO_OUTPUT_CONTROL) += output.o
#define ACPI_FUNCTION_NAME(name)
#endif
+#ifdef DEBUG_FUNC_TRACE
+
#define ACPI_FUNCTION_TRACE(a) ACPI_FUNCTION_NAME(a) \
acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
#define ACPI_FUNCTION_TRACE_PTR(a,b) ACPI_FUNCTION_NAME(a) \
#endif /* ACPI_SIMPLE_RETURN_MACROS */
+#else /* !DEBUG_FUNC_TRACE */
+
+#define ACPI_FUNCTION_TRACE(a)
+#define ACPI_FUNCTION_TRACE_PTR(a,b)
+#define ACPI_FUNCTION_TRACE_U32(a,b)
+#define ACPI_FUNCTION_TRACE_STR(a,b)
+#define ACPI_FUNCTION_EXIT
+#define ACPI_FUNCTION_STATUS_EXIT(s)
+#define ACPI_FUNCTION_VALUE_EXIT(s)
+#define ACPI_FUNCTION_TRACE(a)
+#define ACPI_FUNCTION_ENTRY()
+
+#define return_VOID return
+#define return_ACPI_STATUS(s) return(s)
+#define return_VALUE(s) return(s)
+#define return_UINT8(s) return(s)
+#define return_UINT32(s) return(s)
+#define return_PTR(s) return(s)
+
+#endif /* DEBUG_FUNC_TRACE */
+
/* Conditional execution */
#define ACPI_DEBUG_EXEC(a) a
#define ACPI_DEBUG_EXEC(a)
#define ACPI_NORMAL_EXEC(a) a;
-#define ACPI_DEBUG_DEFINE(a)
-#define ACPI_DEBUG_ONLY_MEMBERS(a)
-#define ACPI_FUNCTION_NAME(a)
-#define ACPI_FUNCTION_TRACE(a)
-#define ACPI_FUNCTION_TRACE_PTR(a,b)
-#define ACPI_FUNCTION_TRACE_U32(a,b)
-#define ACPI_FUNCTION_TRACE_STR(a,b)
-#define ACPI_FUNCTION_EXIT
-#define ACPI_FUNCTION_STATUS_EXIT(s)
-#define ACPI_FUNCTION_VALUE_EXIT(s)
-#define ACPI_FUNCTION_ENTRY()
-#define ACPI_DUMP_STACK_ENTRY(a)
-#define ACPI_DUMP_OPERANDS(a,b,c,d,e)
-#define ACPI_DUMP_ENTRY(a,b)
-#define ACPI_DUMP_TABLES(a,b)
-#define ACPI_DUMP_PATHNAME(a,b,c,d)
-#define ACPI_DUMP_RESOURCE_LIST(a)
-#define ACPI_DUMP_BUFFER(a,b)
-#define ACPI_DEBUG_PRINT(pl)
-#define ACPI_DEBUG_PRINT_RAW(pl)
+#define ACPI_DEBUG_DEFINE(a) do { } while(0)
+#define ACPI_DEBUG_ONLY_MEMBERS(a) do { } while(0)
+#define ACPI_FUNCTION_NAME(a) do { } while(0)
+#define ACPI_FUNCTION_TRACE(a) do { } while(0)
+#define ACPI_FUNCTION_TRACE_PTR(a,b) do { } while(0)
+#define ACPI_FUNCTION_TRACE_U32(a,b) do { } while(0)
+#define ACPI_FUNCTION_TRACE_STR(a,b) do { } while(0)
+#define ACPI_FUNCTION_EXIT do { } while(0)
+#define ACPI_FUNCTION_STATUS_EXIT(s) do { } while(0)
+#define ACPI_FUNCTION_VALUE_EXIT(s) do { } while(0)
+#define ACPI_FUNCTION_ENTRY() do { } while(0)
+#define ACPI_DUMP_STACK_ENTRY(a) do { } while(0)
+#define ACPI_DUMP_OPERANDS(a,b,c,d,e) do { } while(0)
+#define ACPI_DUMP_ENTRY(a,b) do { } while(0)
+#define ACPI_DUMP_TABLES(a,b) do { } while(0)
+#define ACPI_DUMP_PATHNAME(a,b,c,d) do { } while(0)
+#define ACPI_DUMP_RESOURCE_LIST(a) do { } while(0)
+#define ACPI_DUMP_BUFFER(a,b) do { } while(0)
+#define ACPI_DEBUG_PRINT(pl) do { } while(0)
+#define ACPI_DEBUG_PRINT_RAW(pl) do { } while(0)
#define return_VOID return
#define return_ACPI_STATUS(s) return(s)
/* Defaults for debug_level, debug and normal */
-#define ACPI_DEBUG_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR | ACPI_LV_DEBUG_OBJECT)
-#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR | ACPI_LV_DEBUG_OBJECT)
+#define ACPI_DEBUG_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
+#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
#define ACPI_DEBUG_ALL (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
#endif /* __ACOUTPUT_H__ */
};
extern struct kset acpi_subsys;
-
+extern int acpi_bus_generate_genetlink_event(struct acpi_device *device,
+ u8 type, int data);
/*
* External Functions
*/
/*! [Begin] no source code translation */
-#if defined(__linux__)
+#if defined(_LINUX) || defined(__linux__)
#include "aclinux.h"
#elif defined(_AED_EFI)
#define ACPI_USE_NATIVE_DIVIDE
#endif
+#ifndef __cdecl
#define __cdecl
+#endif
+
#define ACPI_FLUSH_CPU_CACHE()
#endif /* __KERNEL__ */
#define ACPI_PSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
#define ACPI_PSD_REV0_ENTRIES 5
+#define ACPI_TSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
+#define ACPI_TSD_REV0_ENTRIES 5
/*
* Types of coordination defined in ACPI 3.0. Same macros can be used across
* P, C and T states
/* Throttling Control */
+struct acpi_tsd_package {
+ acpi_integer num_entries;
+ acpi_integer revision;
+ acpi_integer domain;
+ acpi_integer coord_type;
+ acpi_integer num_processors;
+} __attribute__ ((packed));
+
+struct acpi_ptc_register {
+ u8 descriptor;
+ u16 length;
+ u8 space_id;
+ u8 bit_width;
+ u8 bit_offset;
+ u8 reserved;
+ u64 address;
+} __attribute__ ((packed));
+
+struct acpi_processor_tx_tss {
+ acpi_integer freqpercentage; /* */
+ acpi_integer power; /* milliWatts */
+ acpi_integer transition_latency; /* microseconds */
+ acpi_integer control; /* control value */
+ acpi_integer status; /* success indicator */
+};
struct acpi_processor_tx {
u16 power;
u16 performance;
};
+struct acpi_processor;
struct acpi_processor_throttling {
- int state;
+ unsigned int state;
+ unsigned int platform_limit;
+ struct acpi_pct_register control_register;
+ struct acpi_pct_register status_register;
+ unsigned int state_count;
+ struct acpi_processor_tx_tss *states_tss;
+ struct acpi_tsd_package domain_info;
+ cpumask_t shared_cpu_map;
+ int (*acpi_processor_get_throttling) (struct acpi_processor * pr);
+ int (*acpi_processor_set_throttling) (struct acpi_processor * pr,
+ int state);
+
u32 address;
u8 duty_offset;
u8 duty_width;
- int state_count;
struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
};
u32 id;
u32 pblk;
int performance_platform_limit;
+ int throttling_platform_limit;
+ /* 0 - states 0..n-th state available */
+
struct acpi_processor_flags flags;
struct acpi_processor_power power;
struct acpi_processor_performance *performance;
/* in processor_throttling.c */
int acpi_processor_get_throttling_info(struct acpi_processor *pr);
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
extern struct file_operations acpi_processor_throttling_fops;
/* in processor_idle.c */
#define PCI_DEVICE_ID_ALTIMA_AC9100 0x03ea
#define PCI_DEVICE_ID_ALTIMA_AC1003 0x03eb
+#define PCI_VENDOR_ID_LENOVO 0x17aa
+
#define PCI_VENDOR_ID_ARECA 0x17d3
#define PCI_DEVICE_ID_ARECA_1110 0x1110
#define PCI_DEVICE_ID_ARECA_1120 0x1120
projects / linux-2.6 / commitdiff