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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

Browse source 
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (47 commits)
  ACPI: pci_link: remove acpi_irq_balance_set() interface
  fujitsu-laptop: Add DMI callback for Lifebook S6420
  ACPI: EC: Don't do transaction from GPE handler in poll mode.
  ACPI: EC: lower interrupt storm treshold
  ACPICA: Use spinlock for acpi_{en|dis}able_gpe
  ACPI: EC: restart failed command
  ACPI: EC: wait for last write gpe
  ACPI: EC: make kernel messages more useful when GPE storm is detected
  ACPI: EC: revert msleep patch
  thinkpad_acpi: fingers off backlight if video.ko is serving this functionality
  sony-laptop: fingers off backlight if video.ko is serving this functionality
  msi-laptop: fingers off backlight if video.ko is serving this functionality
  fujitsu-laptop: fingers off backlight if video.ko is serving this functionality
  eeepc-laptop: fingers off backlight if video.ko is serving this functionality
  compal: fingers off backlight if video.ko is serving this functionality
  asus-acpi: fingers off backlight if video.ko is serving this functionality
  Acer-WMI: fingers off backlight if video.ko is serving this functionality
  ACPI video: if no ACPI backlight support, use vendor drivers
  ACPI: video: Ignore devices that aren't present in hardware
  Delete an unwanted return statement at evgpe.c
  ...
This commit is contained in:
Linus Torvalds 2008-11-12 10:24:46 -08:00
commit 08c1184fa2
56 changed files with 935 additions and 388 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
Documentation/ABI/testing/sysfs-firmware-acpi
View file

@ -89,7 +89,7 @@ Description:
error - an interrupt that can't be accounted for above.
invalid: it's either a wakeup GPE or a GPE/Fixed Event that
invalid: it's either a GPE or a Fixed Event that
doesn't have an event handler.
disable: the GPE/Fixed Event is valid but disabled.
@ -117,30 +117,30 @@ Description:
and other user space applications so that the machine won't shutdown
when pressing the power button.
# cat ff_pwr_btn
0
0 enabled
# press the power button for 3 times;
# cat ff_pwr_btn
3
3 enabled
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
disable
3 disabled
# press the power button for 3 times;
# cat ff_pwr_btn
disable
3 disabled
# echo enable > ff_pwr_btn
# cat ff_pwr_btn
4
4 enabled
/*
* this is because the status bit is set even if the enable bit is cleared,
* and it triggers an ACPI fixed event when the enable bit is set again
*/
# press the power button for 3 times;
# cat ff_pwr_btn
7
7 enabled
# echo disable > ff_pwr_btn
# press the power button for 3 times;
# echo clear > ff_pwr_btn /* clear the status bit */
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
7
7 enabled

148
Documentation/acpi/debug.txt Normal file
View file

@ -0,0 +1,148 @@
ACPI Debug Output
The ACPI CA, the Linux ACPI core, and some ACPI drivers can generate debug
output. This document describes how to use this facility.
Compile-time configuration
--------------------------
ACPI debug output is globally enabled by CONFIG_ACPI_DEBUG. If this config
option is turned off, the debug messages are not even built into the
kernel.
Boot- and run-time configuration
--------------------------------
When CONFIG_ACPI_DEBUG=y, you can select the component and level of messages
you're interested in. At boot-time, use the acpi.debug_layer and
acpi.debug_level kernel command line options. After boot, you can use the
debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
the debug messages.
debug_layer (component)
-----------------------
The "debug_layer" is a mask that selects components of interest, e.g., a
specific driver or part of the ACPI interpreter. To build the debug_layer
bitmask, look for the "#define _COMPONENT" in an ACPI source file.
You can set the debug_layer mask at boot-time using the acpi.debug_layer
command line argument, and you can change it after boot by writing values
to /sys/module/acpi/parameters/debug_layer.
The possible components are defined in include/acpi/acoutput.h and
include/acpi/acpi_drivers.h. Reading /sys/module/acpi/parameters/debug_layer
shows the supported mask values, currently these:
ACPI_UTILITIES 0x00000001
ACPI_HARDWARE 0x00000002
ACPI_EVENTS 0x00000004
ACPI_TABLES 0x00000008
ACPI_NAMESPACE 0x00000010
ACPI_PARSER 0x00000020
ACPI_DISPATCHER 0x00000040
ACPI_EXECUTER 0x00000080
ACPI_RESOURCES 0x00000100
ACPI_CA_DEBUGGER 0x00000200
ACPI_OS_SERVICES 0x00000400
ACPI_CA_DISASSEMBLER 0x00000800
ACPI_COMPILER 0x00001000
ACPI_TOOLS 0x00002000
ACPI_BUS_COMPONENT 0x00010000
ACPI_AC_COMPONENT 0x00020000
ACPI_BATTERY_COMPONENT 0x00040000
ACPI_BUTTON_COMPONENT 0x00080000
ACPI_SBS_COMPONENT 0x00100000
ACPI_FAN_COMPONENT 0x00200000
ACPI_PCI_COMPONENT 0x00400000
ACPI_POWER_COMPONENT 0x00800000
ACPI_CONTAINER_COMPONENT 0x01000000
ACPI_SYSTEM_COMPONENT 0x02000000
ACPI_THERMAL_COMPONENT 0x04000000
ACPI_MEMORY_DEVICE_COMPONENT 0x08000000
ACPI_VIDEO_COMPONENT 0x10000000
ACPI_PROCESSOR_COMPONENT 0x20000000
debug_level
-----------
The "debug_level" is a mask that selects different types of messages, e.g.,
those related to initialization, method execution, informational messages, etc.
To build debug_level, look at the level specified in an ACPI_DEBUG_PRINT()
statement.
The ACPI interpreter uses several different levels, but the Linux
ACPI core and ACPI drivers generally only use ACPI_LV_INFO.
You can set the debug_level mask at boot-time using the acpi.debug_level
command line argument, and you can change it after boot by writing values
to /sys/module/acpi/parameters/debug_level.
The possible levels are defined in include/acpi/acoutput.h. Reading
/sys/module/acpi/parameters/debug_level shows the supported mask values,
currently these:
ACPI_LV_INIT 0x00000001
ACPI_LV_DEBUG_OBJECT 0x00000002
ACPI_LV_INFO 0x00000004
ACPI_LV_INIT_NAMES 0x00000020
ACPI_LV_PARSE 0x00000040
ACPI_LV_LOAD 0x00000080
ACPI_LV_DISPATCH 0x00000100
ACPI_LV_EXEC 0x00000200
ACPI_LV_NAMES 0x00000400
ACPI_LV_OPREGION 0x00000800
ACPI_LV_BFIELD 0x00001000
ACPI_LV_TABLES 0x00002000
ACPI_LV_VALUES 0x00004000
ACPI_LV_OBJECTS 0x00008000
ACPI_LV_RESOURCES 0x00010000
ACPI_LV_USER_REQUESTS 0x00020000
ACPI_LV_PACKAGE 0x00040000
ACPI_LV_ALLOCATIONS 0x00100000
ACPI_LV_FUNCTIONS 0x00200000
ACPI_LV_OPTIMIZATIONS 0x00400000
ACPI_LV_MUTEX 0x01000000
ACPI_LV_THREADS 0x02000000
ACPI_LV_IO 0x04000000
ACPI_LV_INTERRUPTS 0x08000000
ACPI_LV_AML_DISASSEMBLE 0x10000000
ACPI_LV_VERBOSE_INFO 0x20000000
ACPI_LV_FULL_TABLES 0x40000000
ACPI_LV_EVENTS 0x80000000
Examples
--------
For example, drivers/acpi/bus.c contains this:
#define _COMPONENT ACPI_BUS_COMPONENT
...
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n"));
To turn on this message, set the ACPI_BUS_COMPONENT bit in acpi.debug_layer
and the ACPI_LV_INFO bit in acpi.debug_level. (The ACPI_DEBUG_PRINT
statement uses ACPI_DB_INFO, which is macro based on the ACPI_LV_INFO
definition.)
Enable all AML "Debug" output (stores to the Debug object while interpreting
AML) during boot:
acpi.debug_layer=0xffffffff acpi.debug_level=0x2
Enable PCI and PCI interrupt routing debug messages:
acpi.debug_layer=0x400000 acpi.debug_level=0x4
Enable all ACPI hardware-related messages:
acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
Enable all ACPI_DB_INFO messages after boot:
# echo 0x4 > /sys/module/acpi/parameters/debug_level
Show all valid component values:
# cat /sys/module/acpi/parameters/debug_layer

83
Documentation/kernel-parameters.txt
View file

@ -198,59 +198,42 @@ and is between 256 and 4096 characters. It is defined in the file
that require a timer override, but don't have
HPET
acpi.debug_layer= [HW,ACPI]
acpi_backlight= [HW,ACPI]
acpi_backlight=vendor
acpi_backlight=video
If set to vendor, prefer vendor specific driver
(e.g. thinkpad_acpi, sony_acpi, etc.) instead
of the ACPI video.ko driver.
acpi_display_output= [HW,ACPI]
acpi_display_output=vendor
acpi_display_output=video
See above.
acpi.debug_layer= [HW,ACPI,ACPI_DEBUG]
acpi.debug_level= [HW,ACPI,ACPI_DEBUG]
Format: <int>
Each bit of the <int> indicates an ACPI debug layer,
1: enable, 0: disable. It is useful for boot time
debugging. After system has booted up, it can be set
via /sys/module/acpi/parameters/debug_layer.
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
Available bits (add the numbers together) to enable debug output
for specific parts of the ACPI subsystem:
0x01 utilities 0x02 hardware 0x04 events 0x08 tables
0x10 namespace 0x20 parser 0x40 dispatcher
0x80 executer 0x100 resources 0x200 acpica debugger
0x400 os services 0x800 acpica disassembler.
The number can be in decimal or prefixed with 0x in hex.
Warning: Many of these options can produce a lot of
output and make your system unusable. Be very careful.
CONFIG_ACPI_DEBUG must be enabled to produce any ACPI
debug output. Bits in debug_layer correspond to a
_COMPONENT in an ACPI source file, e.g.,
#define _COMPONENT ACPI_PCI_COMPONENT
Bits in debug_level correspond to a level in
ACPI_DEBUG_PRINT statements, e.g.,
ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
See Documentation/acpi/debug.txt for more information
about debug layers and levels.
acpi.debug_level= [HW,ACPI]
Format: <int>
Each bit of the <int> indicates an ACPI debug level,
which corresponds to the level in an ACPI_DEBUG_PRINT
statement. After system has booted up, this mask
can be set via /sys/module/acpi/parameters/debug_level.
Enable AML "Debug" output, i.e., stores to the Debug
object while interpreting AML:
acpi.debug_layer=0xffffffff acpi.debug_level=0x2
Enable PCI/PCI interrupt routing info messages:
acpi.debug_layer=0x400000 acpi.debug_level=0x4
Enable all messages related to ACPI hardware:
acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
CONFIG_ACPI_DEBUG must be enabled for this to produce
any output. The number can be in decimal or prefixed
with 0x in hex. Some of these options produce so much
output that the system is unusable.
The following global components are defined by the
ACPI CA:
0x01 error
0x02 warn
0x04 init
0x08 debug object
0x10 info
0x20 init names
0x40 parse
0x80 load
0x100 dispatch
0x200 execute
0x400 names
0x800 operation region
0x1000 bfield
0x2000 tables
0x4000 values
0x8000 objects
0x10000 resources
0x20000 user requests
0x40000 package
The number can be in decimal or prefixed with 0x in hex.
Warning: Many of these options can produce a lot of
output and make your system unusable. Be very careful.
Some values produce so much output that the system is
unusable. The "log_buf_len" parameter may be useful
if you need to capture more output.
acpi.power_nocheck= [HW,ACPI]
Format: 1/0 enable/disable the check of power state.

11
MAINTAINERS
View file

@ -2216,6 +2216,13 @@ M: adaplas@gmail.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
INTEL MENLOW THERMAL DRIVER
P: Sujith Thomas
M: sujith.thomas@intel.com
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
INTEL IA32 MICROCODE UPDATE SUPPORT
P: Tigran Aivazian
M: tigran@aivazian.fsnet.co.uk
@ -3377,7 +3384,9 @@ S: Maintained
PNP SUPPORT
P: Adam Belay
M: ambx1@neo.rr.com
M: abelay@mit.edu
P: Bjorn Helgaas
M: bjorn.helgaas@hp.com
S: Maintained
PNXxxxx I2C DRIVER

1
arch/x86/include/asm/acpi.h
View file

@ -113,7 +113,6 @@ static inline void acpi_disable_pci(void)
acpi_pci_disabled = 1;
acpi_noirq_set();
}
extern int acpi_irq_balance_set(char *str);
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);

1
arch/x86/kernel/acpi/boot.c
View file

@ -1343,7 +1343,6 @@ static void __init acpi_process_madt(void)
error = acpi_parse_madt_ioapic_entries();
if (!error) {
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
acpi_irq_balance_set(NULL);
acpi_ioapic = 1;
smp_found_config = 1;

22
drivers/acpi/Kconfig
View file

@ -312,9 +312,13 @@ config ACPI_DEBUG
bool "Debug Statements"
default n
help
The ACPI driver can optionally report errors with a great deal
of verbosity. Saying Y enables these statements. This will increase
your kernel size by around 50K.
The ACPI subsystem can produce debug output. Saying Y enables this
output and increases the kernel size by around 50K.
Use the acpi.debug_layer and acpi.debug_level kernel command-line
parameters documented in Documentation/acpi/debug.txt and
Documentation/kernel-parameters.txt to control the type and
amount of debug output.
config ACPI_DEBUG_FUNC_TRACE
bool "Additionally enable ACPI function tracing"
@ -324,14 +328,6 @@ config ACPI_DEBUG_FUNC_TRACE
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
help
This driver is required on some systems for the proper operation of
the battery and thermal drivers. If you are compiling for a
mobile system, say Y.
config ACPI_PCI_SLOT
tristate "PCI slot detection driver"
default n
@ -341,10 +337,6 @@ config ACPI_PCI_SLOT
help you correlate PCI bus addresses with the physical geography
of your slots. If you are unsure, say N.
config ACPI_POWER
bool
default y
config ACPI_SYSTEM
bool
default y

8
drivers/acpi/Makefile
View file

@ -39,19 +39,23 @@ obj-y += sleep/
obj-y += bus.o glue.o
obj-y += scan.o
# Keep EC driver first. Initialization of others depend on it.
obj-$(CONFIG_ACPI_EC) += ec.o
obj-y += ec.o
obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BATTERY) += battery.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
obj-$(CONFIG_ACPI_FAN) += fan.o
obj-$(CONFIG_ACPI_DOCK) += dock.o
obj-$(CONFIG_ACPI_VIDEO) += video.o
ifdef CONFIG_ACPI_VIDEO
obj-y += video_detect.o
endif
obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o
obj-$(CONFIG_ACPI_PROCESSOR) += processor.o
obj-$(CONFIG_ACPI_CONTAINER) += container.o
obj-$(CONFIG_ACPI_THERMAL) += thermal.o
obj-$(CONFIG_ACPI_POWER) += power.o
obj-y += power.o
obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
obj-$(CONFIG_ACPI_DEBUG) += debug.o
obj-$(CONFIG_ACPI_NUMA) += numa.o

3
drivers/acpi/ac.c
View file

@ -37,7 +37,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define ACPI_AC_COMPONENT 0x00020000
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_AC_DEVICE_NAME "AC Adapter"
#define ACPI_AC_FILE_STATE "state"
@ -242,7 +241,7 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
acpi_ac_get_state(ac);
acpi_bus_generate_proc_event(device, event, (u32) ac->state);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
dev_name(&device->dev), event,
(u32) ac->state);
#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);

1
drivers/acpi/acpi_memhotplug.c
View file

@ -32,7 +32,6 @@
#include <linux/memory_hotplug.h>
#include <acpi/acpi_drivers.h>
#define ACPI_MEMORY_DEVICE_COMPONENT 0x08000000UL
#define ACPI_MEMORY_DEVICE_CLASS "memory"
#define ACPI_MEMORY_DEVICE_HID "PNP0C80"
#define ACPI_MEMORY_DEVICE_NAME "Hotplug Mem Device"

3
drivers/acpi/battery.c
View file

@ -46,7 +46,6 @@
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
#define ACPI_BATTERY_COMPONENT 0x00040000
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_BATTERY_DEVICE_NAME "Battery"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
@ -782,7 +781,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_proc_event(device, event,
acpi_battery_present(battery));
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
dev_name(&device->dev), event,
acpi_battery_present(battery));
#ifdef CONFIG_ACPI_SYSFS_POWER
/* acpi_batter_update could remove power_supply object */

11
drivers/acpi/bus.c
View file

@ -688,6 +688,14 @@ void __init acpi_early_init(void)
if (acpi_disabled)
return;
/*
* ACPI CA initializes acpi_dbg_level to non-zero, which means
* we get debug output merely by turning on CONFIG_ACPI_DEBUG.
* Turn it off so we don't get output unless the user specifies
* acpi.debug_level.
*/
acpi_dbg_level = 0;
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
/* enable workarounds, unless strict ACPI spec. compliance */
@ -774,7 +782,7 @@ static int __init acpi_bus_init(void)
"Unable to initialize ACPI OS objects\n");
goto error1;
}
#ifdef CONFIG_ACPI_EC
/*
* ACPI 2.0 requires the EC driver to be loaded and work before
* the EC device is found in the namespace (i.e. before acpi_initialize_objects()
@ -785,7 +793,6 @@ static int __init acpi_bus_init(void)
*/
status = acpi_ec_ecdt_probe();
/* Ignore result. Not having an ECDT is not fatal. */
#endif
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
if (ACPI_FAILURE(status)) {

3
drivers/acpi/button.c
View file

@ -33,7 +33,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define ACPI_BUTTON_COMPONENT 0x00080000
#define ACPI_BUTTON_CLASS "button"
#define ACPI_BUTTON_FILE_INFO "info"
#define ACPI_BUTTON_FILE_STATE "state"
@ -479,7 +478,7 @@ static int acpi_button_add(struct acpi_device *device)
device->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(device->wakeup.gpe_device,
device->wakeup.gpe_number, ACPI_NOT_ISR);
device->wakeup.gpe_number);
device->wakeup.state.enabled = 1;
}

7
drivers/acpi/cm_sbs.c
View file

@ -34,7 +34,6 @@
ACPI_MODULE_NAME("cm_sbs");
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_SBS_COMPONENT 0x00080000
#define _COMPONENT ACPI_SBS_COMPONENT
static struct proc_dir_entry *acpi_ac_dir;
static struct proc_dir_entry *acpi_battery_dir;
@ -105,9 +104,3 @@ void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
return;
}
EXPORT_SYMBOL(acpi_unlock_battery_dir);
static int __init acpi_cm_sbs_init(void)
{
return 0;
}
subsys_initcall(acpi_cm_sbs_init);

1
drivers/acpi/container.c
View file

@ -41,7 +41,6 @@
#define INSTALL_NOTIFY_HANDLER 1
#define UNINSTALL_NOTIFY_HANDLER 2
#define ACPI_CONTAINER_COMPONENT 0x01000000
#define _COMPONENT ACPI_CONTAINER_COMPONENT
ACPI_MODULE_NAME("container");

15
drivers/acpi/debug.c
View file

@ -44,6 +44,21 @@ static const struct acpi_dlayer acpi_debug_layers[] = {
ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
ACPI_DEBUG_INIT(ACPI_COMPILER),
ACPI_DEBUG_INIT(ACPI_TOOLS),
ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
};
static const struct acpi_dlevel acpi_debug_levels[] = {

85
drivers/acpi/ec.c
View file

@ -70,7 +70,7 @@ enum ec_command {
#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */
#define ACPI_EC_UDELAY 100 /* Wait 100us before polling EC again */
#define ACPI_EC_STORM_THRESHOLD 20 /* number of false interrupts
#define ACPI_EC_STORM_THRESHOLD 8 /* number of false interrupts
per one transaction */
enum {
@ -100,8 +100,11 @@ struct transaction {
u8 *rdata;
unsigned short irq_count;
u8 command;
u8 wi;
u8 ri;
u8 wlen;
u8 rlen;
bool done;
};
static struct acpi_ec {
@ -178,34 +181,45 @@ static int ec_transaction_done(struct acpi_ec *ec)
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&ec->curr_lock, flags);
if (!ec->curr || (!ec->curr->wlen && !ec->curr->rlen))
if (!ec->curr || ec->curr->done)
ret = 1;
spin_unlock_irqrestore(&ec->curr_lock, flags);
return ret;
}
static void start_transaction(struct acpi_ec *ec)
{
ec->curr->irq_count = ec->curr->wi = ec->curr->ri = 0;
ec->curr->done = false;
acpi_ec_write_cmd(ec, ec->curr->command);
}
static void gpe_transaction(struct acpi_ec *ec, u8 status)
{
unsigned long flags;
spin_lock_irqsave(&ec->curr_lock, flags);
if (!ec->curr)
goto unlock;
if (ec->curr->wlen > 0) {
if ((status & ACPI_EC_FLAG_IBF) == 0) {
acpi_ec_write_data(ec, *(ec->curr->wdata++));
--ec->curr->wlen;
} else
/* false interrupt, state didn't change */
++ec->curr->irq_count;
} else if (ec->curr->rlen > 0) {
if (ec->curr->wlen > ec->curr->wi) {
if ((status & ACPI_EC_FLAG_IBF) == 0)
acpi_ec_write_data(ec,
ec->curr->wdata[ec->curr->wi++]);
else
goto err;
} else if (ec->curr->rlen > ec->curr->ri) {
if ((status & ACPI_EC_FLAG_OBF) == 1) {
*(ec->curr->rdata++) = acpi_ec_read_data(ec);
--ec->curr->rlen;
ec->curr->rdata[ec->curr->ri++] = acpi_ec_read_data(ec);
if (ec->curr->rlen == ec->curr->ri)
ec->curr->done = true;
} else
goto err;
} else if (ec->curr->wlen == ec->curr->wi &&
(status & ACPI_EC_FLAG_IBF) == 0)
ec->curr->done = true;
goto unlock;
err:
/* false interrupt, state didn't change */
++ec->curr->irq_count;
}
unlock:
spin_unlock_irqrestore(&ec->curr_lock, flags);
}
@ -215,6 +229,15 @@ static int acpi_ec_wait(struct acpi_ec *ec)
if (wait_event_timeout(ec->wait, ec_transaction_done(ec),
msecs_to_jiffies(ACPI_EC_DELAY)))
return 0;
/* try restart command if we get any false interrupts */
if (ec->curr->irq_count &&
(acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) == 0) {
pr_debug(PREFIX "controller reset, restart transaction\n");
start_transaction(ec);
if (wait_event_timeout(ec->wait, ec_transaction_done(ec),
msecs_to_jiffies(ACPI_EC_DELAY)))
return 0;
}
/* missing GPEs, switch back to poll mode */
if (printk_ratelimit())
pr_info(PREFIX "missing confirmations, "
@ -239,10 +262,10 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state)
static int ec_poll(struct acpi_ec *ec)
{
unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
msleep(1);
udelay(ACPI_EC_UDELAY);
while (time_before(jiffies, delay)) {
gpe_transaction(ec, acpi_ec_read_status(ec));
msleep(1);
udelay(ACPI_EC_UDELAY);
if (ec_transaction_done(ec))
return 0;
}
@ -259,14 +282,13 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
/* disable GPE during transaction if storm is detected */
if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
acpi_disable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
acpi_disable_gpe(NULL, ec->gpe);
}
/* start transaction */
spin_lock_irqsave(&ec->curr_lock, tmp);
/* following two actions should be kept atomic */
t->irq_count = 0;
ec->curr = t;
acpi_ec_write_cmd(ec, ec->curr->command);
start_transaction(ec);
if (ec->curr->command == ACPI_EC_COMMAND_QUERY)
clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
spin_unlock_irqrestore(&ec->curr_lock, tmp);
@ -283,10 +305,11 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
/* check if we received SCI during transaction */
ec_check_sci(ec, acpi_ec_read_status(ec));
/* it is safe to enable GPE outside of transaction */
acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->gpe);
} else if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags) &&
t->irq_count > ACPI_EC_STORM_THRESHOLD) {
pr_debug(PREFIX "GPE storm detected\n");
pr_info(PREFIX "GPE storm detected, "
"transactions will use polling mode\n");
set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
}
return ret;
@ -558,17 +581,26 @@ static u32 acpi_ec_gpe_handler(void *data)
pr_debug(PREFIX "~~~> interrupt\n");
status = acpi_ec_read_status(ec);
if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) {
gpe_transaction(ec, status);
if (ec_transaction_done(ec) && (status & ACPI_EC_FLAG_IBF) == 0)
if (ec_transaction_done(ec) &&
(status & ACPI_EC_FLAG_IBF) == 0)
wake_up(&ec->wait);
}
ec_check_sci(ec, status);
if (!test_bit(EC_FLAGS_GPE_MODE, &ec->flags) &&
!test_bit(EC_FLAGS_NO_GPE, &ec->flags)) {
/* this is non-query, must be confirmation */
if (!test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
if (printk_ratelimit())
pr_info(PREFIX "non-query interrupt received,"
" switching to interrupt mode\n");
} else {
/* hush, STORM switches the mode every transaction */
pr_debug(PREFIX "non-query interrupt received,"
" switching to interrupt mode\n");
}
set_bit(EC_FLAGS_GPE_MODE, &ec->flags);
}
return ACPI_INTERRUPT_HANDLED;
@ -736,7 +768,7 @@ static acpi_status
ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
{
acpi_status status;
unsigned long long tmp;
unsigned long long tmp = 0;
struct acpi_ec *ec = context;
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
@ -751,6 +783,7 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
return status;
ec->gpe = tmp;
/* Use the global lock for all EC transactions? */
tmp = 0;
acpi_evaluate_integer(handle, "_GLK", NULL, &tmp);
ec->global_lock = tmp;
ec->handle = handle;
@ -868,7 +901,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
if (ACPI_FAILURE(status))
return -ENODEV;
acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->gpe);
status = acpi_install_address_space_handler(ec->handle,
ACPI_ADR_SPACE_EC,
&acpi_ec_space_handler,
@ -1007,7 +1040,7 @@ static int acpi_ec_suspend(struct acpi_device *device, pm_message_t state)
/* Stop using GPE */
set_bit(EC_FLAGS_NO_GPE, &ec->flags);
clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
acpi_disable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
acpi_disable_gpe(NULL, ec->gpe);
return 0;
}
@ -1016,7 +1049,7 @@ static int acpi_ec_resume(struct acpi_device *device)
struct acpi_ec *ec = acpi_driver_data(device);
/* Enable use of GPE back */
clear_bit(EC_FLAGS_NO_GPE, &ec->flags);
acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
acpi_enable_gpe(NULL, ec->gpe);
return 0;
}

2
drivers/acpi/events/evgpe.c
View file

@ -289,8 +289,6 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
*/
status = acpi_hw_low_disable_gpe(gpe_event_info);
return_ACPI_STATUS(status);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************

41
drivers/acpi/events/evxfevnt.c
View file

@ -248,21 +248,15 @@ ACPI_EXPORT_SYMBOL(acpi_set_gpe_type)
* DESCRIPTION: Enable an ACPI event (general purpose)
*
******************************************************************************/
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
{
acpi_status status = AE_OK;
acpi_cpu_flags flags;
struct acpi_gpe_event_info *gpe_event_info;
ACPI_FUNCTION_TRACE(acpi_enable_gpe);
/* Use semaphore lock if not executing at interrupt level */
if (flags & ACPI_NOT_ISR) {
status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
/* Ensure that we have a valid GPE number */
@ -277,9 +271,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
status = acpi_ev_enable_gpe(gpe_event_info, TRUE);
unlock_and_exit:
if (flags & ACPI_NOT_ISR) {
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
}
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
@ -299,22 +291,15 @@ ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
* DESCRIPTION: Disable an ACPI event (general purpose)
*
******************************************************************************/
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
{
acpi_status status = AE_OK;
acpi_cpu_flags flags;
struct acpi_gpe_event_info *gpe_event_info;
ACPI_FUNCTION_TRACE(acpi_disable_gpe);
/* Use semaphore lock if not executing at interrupt level */
if (flags & ACPI_NOT_ISR) {
status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
/* Ensure that we have a valid GPE number */
gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
@ -325,10 +310,8 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
status = acpi_ev_disable_gpe(gpe_event_info);
unlock_and_exit:
if (flags & ACPI_NOT_ISR) {
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
}
unlock_and_exit:
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
@ -521,6 +504,9 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
if (value)
*event_status |= ACPI_EVENT_FLAG_SET;
if (acpi_gbl_fixed_event_handlers[event].handler)
*event_status |= ACPI_EVENT_FLAG_HANDLE;
return_ACPI_STATUS(status);
}
@ -571,6 +557,9 @@ acpi_get_gpe_status(acpi_handle gpe_device,
status = acpi_hw_get_gpe_status(gpe_event_info, event_status);
if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
*event_status |= ACPI_EVENT_FLAG_HANDLE;
unlock_and_exit:
if (flags & ACPI_NOT_ISR) {
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);

1
drivers/acpi/fan.c
View file

@ -34,7 +34,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define ACPI_FAN_COMPONENT 0x00200000
#define ACPI_FAN_CLASS "fan"
#define ACPI_FAN_FILE_STATE "state"

40
drivers/acpi/glue.c
View file

@ -140,6 +140,46 @@ struct device *acpi_get_physical_device(acpi_handle handle)
EXPORT_SYMBOL(acpi_get_physical_device);
/* ToDo: When a PCI bridge is found, return the PCI device behind the bridge
* This should work in general, but did not on a Lenovo T61 for the
* graphics card. But this must be fixed when the PCI device is
* bound and the kernel device struct is attached to the acpi device
* Note: A success call will increase reference count by one
* Do call put_device(dev) on the returned device then
*/
struct device *acpi_get_physical_pci_device(acpi_handle handle)
{
struct device *dev;
long long device_id;
acpi_status status;
status =
acpi_evaluate_integer(handle, "_ADR", NULL, &device_id);
if (ACPI_FAILURE(status))
return NULL;
/* We need to attempt to determine whether the _ADR refers to a
PCI device or not. There's no terribly good way to do this,
so the best we can hope for is to assume that there'll never
be a device in the host bridge */
if (device_id >= 0x10000) {
/* It looks like a PCI device. Does it exist? */
dev = acpi_get_physical_device(handle);
} else {
/* It doesn't look like a PCI device. Does its parent
exist? */
acpi_handle phandle;
if (acpi_get_parent(handle, &phandle))
return NULL;
dev = acpi_get_physical_device(phandle);
}
if (!dev)
return NULL;
return dev;
}
EXPORT_SYMBOL(acpi_get_physical_pci_device);
static int acpi_bind_one(struct device *dev, acpi_handle handle)
{
struct acpi_device *acpi_dev;

11
drivers/acpi/pci_link.c
View file

@ -531,7 +531,7 @@ int __init acpi_irq_penalty_init(void)
return 0;
}
static int acpi_irq_balance; /* 0: static, 1: balance */
static int acpi_irq_balance = -1; /* 0: static, 1: balance */
static int acpi_pci_link_allocate(struct acpi_pci_link *link)
{
@ -950,10 +950,17 @@ device_initcall(irqrouter_init_sysfs);
static int __init acpi_pci_link_init(void)
{
if (acpi_noirq)
return 0;
if (acpi_irq_balance == -1) {
/* no command line switch: enable balancing in IOAPIC mode */
if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC)
acpi_irq_balance = 1;
else
acpi_irq_balance = 0;
}
acpi_link.count = 0;
INIT_LIST_HEAD(&acpi_link.entries);

6
drivers/acpi/pci_root.c
View file

@ -376,15 +376,9 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
static int __init acpi_pci_root_init(void)
{
if (acpi_pci_disabled)
return 0;
/* DEBUG:
acpi_dbg_layer = ACPI_PCI_COMPONENT;
acpi_dbg_level = 0xFFFFFFFF;
*/
if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
return -ENODEV;

9
drivers/acpi/power.c
View file

@ -46,7 +46,6 @@
#define _COMPONENT ACPI_POWER_COMPONENT
ACPI_MODULE_NAME("power");
#define ACPI_POWER_COMPONENT 0x00800000
#define ACPI_POWER_CLASS "power_resource"
#define ACPI_POWER_DEVICE_NAME "Power Resource"
#define ACPI_POWER_FILE_INFO "info"
@ -153,7 +152,8 @@ static int acpi_power_get_state(acpi_handle handle, int *state)
ACPI_POWER_RESOURCE_STATE_OFF;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
acpi_ut_get_node_name(handle), state ? "on" : "off"));
acpi_ut_get_node_name(handle),
*state ? "on" : "off"));
return 0;
}
@ -516,11 +516,6 @@ int acpi_power_transition(struct acpi_device *device, int state)
cl = &device->power.states[device->power.state].resources;
tl = &device->power.states[state].resources;
if (!cl->count && !tl->count) {
result = -ENODEV;
goto end;
}
/* TBD: Resources must be ordered. */
/*

89
drivers/acpi/processor_core.c
View file

@ -59,7 +59,6 @@
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
#define ACPI_PROCESSOR_FILE_INFO "info"
@ -89,6 +88,7 @@ static int acpi_processor_handle_eject(struct acpi_processor *pr);
static const struct acpi_device_id processor_device_ids[] = {
{ACPI_PROCESSOR_OBJECT_HID, 0},
{ACPI_PROCESSOR_HID, 0},
{"", 0},
};
@ -409,7 +409,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device)
/* Use the acpiid in MADT to map cpus in case of SMP */
#ifndef CONFIG_SMP
static int get_cpu_id(acpi_handle handle, u32 acpi_id) {return -1;}
static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) { return -1; }
#else
static struct acpi_table_madt *madt;
@ -428,27 +428,35 @@ static int map_lapic_id(struct acpi_subtable_header *entry,
}
static int map_lsapic_id(struct acpi_subtable_header *entry,
u32 acpi_id, int *apic_id)
int device_declaration, u32 acpi_id, int *apic_id)
{
struct acpi_madt_local_sapic *lsapic =
(struct acpi_madt_local_sapic *)entry;
u32 tmp = (lsapic->id << 8) | lsapic->eid;
/* Only check enabled APICs*/
if (lsapic->lapic_flags & ACPI_MADT_ENABLED) {
/* First check against id */
if (lsapic->processor_id == acpi_id) {
*apic_id = (lsapic->id << 8) | lsapic->eid;
return 1;
/* Check against optional uid */
} else if (entry->length >= 16 &&
lsapic->uid == acpi_id) {
*apic_id = lsapic->uid;
return 1;
}
}
if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED))
return 0;
/* Device statement declaration type */
if (device_declaration) {
if (entry->length < 16)
printk(KERN_ERR PREFIX
"Invalid LSAPIC with Device type processor (SAPIC ID %#x)\n",
tmp);
else if (lsapic->uid == acpi_id)
goto found;
/* Processor statement declaration type */
} else if (lsapic->processor_id == acpi_id)
goto found;
return 0;
found:
*apic_id = tmp;
return 1;
}
static int map_madt_entry(u32 acpi_id)
static int map_madt_entry(int type, u32 acpi_id)
{
unsigned long madt_end, entry;
int apic_id = -1;
@ -469,7 +477,7 @@ static int map_madt_entry(u32 acpi_id)
if (map_lapic_id(header, acpi_id, &apic_id))
break;
} else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
if (map_lsapic_id(header, acpi_id, &apic_id))
if (map_lsapic_id(header, type, acpi_id, &apic_id))
break;
}
entry += header->length;
@ -477,7 +485,7 @@ static int map_madt_entry(u32 acpi_id)
return apic_id;
}
static int map_mat_entry(acpi_handle handle, u32 acpi_id)
static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
@ -500,7 +508,7 @@ static int map_mat_entry(acpi_handle handle, u32 acpi_id)
if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) {
map_lapic_id(header, acpi_id, &apic_id);
} else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
map_lsapic_id(header, acpi_id, &apic_id);
map_lsapic_id(header, type, acpi_id, &apic_id);
}
exit:
@ -509,14 +517,14 @@ exit:
return apic_id;
}
static int get_cpu_id(acpi_handle handle, u32 acpi_id)
static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id)
{
int i;
int apic_id = -1;
apic_id = map_mat_entry(handle, acpi_id);
apic_id = map_mat_entry(handle, type, acpi_id);
if (apic_id == -1)
apic_id = map_madt_entry(acpi_id);
apic_id = map_madt_entry(type, acpi_id);
if (apic_id == -1)
return apic_id;
@ -532,15 +540,16 @@ static int get_cpu_id(acpi_handle handle, u32 acpi_id)
Driver Interface
-------------------------------------------------------------------------- */
static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
static int acpi_processor_get_info(struct acpi_device *device)
{
acpi_status status = 0;
union acpi_object object = { 0 };
struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
int cpu_index;
struct acpi_processor *pr;
int cpu_index, device_declaration = 0;
static int cpu0_initialized;
pr = acpi_driver_data(device);
if (!pr)
return -EINVAL;
@ -561,22 +570,23 @@ static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No bus mastering arbitration control\n"));
/* Check if it is a Device with HID and UID */
if (has_uid) {
if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_HID)) {
/*
* Declared with "Device" statement; match _UID.
* Note that we don't handle string _UIDs yet.
*/
unsigned long long value;
status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
NULL, &value);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor _UID\n");
printk(KERN_ERR PREFIX
"Evaluating processor _UID [%#x]\n", status);
return -ENODEV;
}
device_declaration = 1;
pr->acpi_id = value;
} else {
/*
* Evalute the processor object. Note that it is common on SMP to
* have the first (boot) processor with a valid PBLK address while
* all others have a NULL address.
*/
/* Declared with "Processor" statement; match ProcessorID */
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
@ -585,11 +595,12 @@ static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
/*
* TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
* >>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
* >>> 'acpi_get_processor_id(acpi_id, &id)' in
* arch/xxx/acpi.c
*/
pr->acpi_id = object.processor.proc_id;
}
cpu_index = get_cpu_id(pr->handle, pr->acpi_id);
cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id);
/* Handle UP system running SMP kernel, with no LAPIC in MADT */
if (!cpu0_initialized && (cpu_index == -1) &&
@ -661,7 +672,7 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
pr = acpi_driver_data(device);
result = acpi_processor_get_info(pr, device->flags.unique_id);
result = acpi_processor_get_info(device);
if (result) {
/* Processor is physically not present */
return 0;
@ -761,20 +772,20 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_proc_event(device, event,
pr->performance_platform_limit);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
dev_name(&device->dev), event,
pr->performance_platform_limit);
break;
case ACPI_PROCESSOR_NOTIFY_POWER:
acpi_processor_cst_has_changed(pr);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, 0);
dev_name(&device->dev), event, 0);
break;
case ACPI_PROCESSOR_NOTIFY_THROTTLING:
acpi_processor_tstate_has_changed(pr);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, 0);
dev_name(&device->dev), event, 0);
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Unsupported event [0x%x]\n", event));

1
drivers/acpi/processor_idle.c
View file

@ -59,7 +59,6 @@
#include <acpi/processor.h>
#include <asm/processor.h>
#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_idle");

2
drivers/acpi/processor_perflib.c
View file

@ -44,9 +44,9 @@
#endif
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define ACPI_PROCESSOR_FILE_PERFORMANCE "performance"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT

1
drivers/acpi/processor_thermal.c
View file

@ -40,7 +40,6 @@
#include <acpi/processor.h>
#include <acpi/acpi_drivers.h>
#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_thermal");

2
drivers/acpi/processor_throttling.c
View file

@ -38,9 +38,9 @@
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_throttling");

25
drivers/acpi/reboot.c
View file

@ -15,28 +15,9 @@ void acpi_reboot(void)
rr = &acpi_gbl_FADT.reset_register;
/*
* Is the ACPI reset register supported?
*
* According to ACPI 3.0, FADT.flags.RESET_REG_SUP indicates
* whether the ACPI reset mechanism is supported.
*
* However, some boxes have this bit clear, yet a valid
* ACPI_RESET_REG & RESET_VALUE, and ACPI reboot is the only
* mechanism that works for them after S3.
*
* This suggests that other operating systems may not be checking
* the RESET_REG_SUP bit, and are using other means to decide
* whether to use the ACPI reboot mechanism or not.
*
* So when acpi reboot is requested,
* only the reset_register is checked. If the following
* conditions are met, it indicates that the reset register is supported.
* a. reset_register is not zero
* b. the access width is eight
* c. the bit_offset is zero
*/
if (!(rr->address) || rr->bit_width != 8 || rr->bit_offset != 0)
/* Is the reset register supported? */
if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
rr->bit_width != 8 || rr->bit_offset != 0)
return;
reset_value = acpi_gbl_FADT.reset_value;

42
drivers/acpi/scan.c
View file

@ -109,8 +109,7 @@ static int acpi_bus_hot_remove_device(void *context)
return 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Hot-removing device %s...\n", device->dev.bus_id));
"Hot-removing device %s...\n", dev_name(&device->dev)));
if (acpi_bus_trim(device, 1)) {
printk(KERN_ERR PREFIX
@ -460,7 +459,7 @@ static int acpi_device_register(struct acpi_device *device,
acpi_device_bus_id->instance_no = 0;
list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list);
}
sprintf(device->dev.bus_id, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
dev_set_name(&device->dev, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
if (device->parent) {
list_add_tail(&device->node, &device->parent->children);
@ -484,7 +483,8 @@ static int acpi_device_register(struct acpi_device *device,
result = acpi_device_setup_files(device);
if(result)
printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n", device->dev.bus_id);
printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n",
dev_name(&device->dev));
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
@ -919,36 +919,6 @@ static void acpi_device_get_busid(struct acpi_device *device,
}
}
static int
acpi_video_bus_match(struct acpi_device *device)
{
acpi_handle h_dummy;
if (!device)
return -EINVAL;
/* Since there is no HID, CID for ACPI Video drivers, we have
* to check well known required nodes for each feature we support.
*/
/* Does this device able to support video switching ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
return 0;
/* Does this device able to retrieve a video ROM ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
return 0;
/* Does this device able to configure which video head to be POSTed ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy)))
return 0;
return -ENODEV;
}
/*
* acpi_bay_match - see if a device is an ejectable driver bay
*
@ -1031,7 +1001,7 @@ static void acpi_device_set_id(struct acpi_device *device,
will get autoloaded and the device might still match
against another driver.
*/
if (ACPI_SUCCESS(acpi_video_bus_match(device)))
if (acpi_is_video_device(device))
cid_add = ACPI_VIDEO_HID;
else if (ACPI_SUCCESS(acpi_bay_match(device)))
cid_add = ACPI_BAY_HID;
@ -1043,7 +1013,7 @@ static void acpi_device_set_id(struct acpi_device *device,
hid = ACPI_POWER_HID;
break;
case ACPI_BUS_TYPE_PROCESSOR:
hid = ACPI_PROCESSOR_HID;
hid = ACPI_PROCESSOR_OBJECT_HID;
break;
case ACPI_BUS_TYPE_SYSTEM:
hid = ACPI_SYSTEM_HID;

4
drivers/acpi/sleep/proc.c
View file

@ -366,8 +366,8 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
dev->wakeup.state.enabled ? "enabled" : "disabled");
if (ldev)
seq_printf(seq, "%s:%s",
ldev->bus ? ldev->bus->name : "no-bus",
ldev->bus_id);
dev_name(ldev) ? ldev->bus->name : "no-bus",
dev_name(ldev));
seq_printf(seq, "\n");
put_device(ldev);

8
drivers/acpi/sleep/wakeup.c
View file

@ -88,7 +88,7 @@ void acpi_enable_wakeup_device(u8 sleep_state)
spin_unlock(&acpi_device_lock);
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_ISR);
dev->wakeup.gpe_number);
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@ -122,7 +122,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
ACPI_GPE_TYPE_WAKE_RUN);
/* Re-enable it, since set_gpe_type will disable it */
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
dev->wakeup.gpe_number);
spin_lock(&acpi_device_lock);
}
continue;
@ -133,7 +133,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
/* Never disable run-wake GPE */
if (!dev->wakeup.flags.run_wake) {
acpi_disable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
dev->wakeup.gpe_number);
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
@ -162,7 +162,7 @@ static int __init acpi_wakeup_device_init(void)
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
dev->wakeup.gpe_number);
dev->wakeup.state.enabled = 1;
spin_lock(&acpi_device_lock);
}

46
drivers/acpi/system.c
View file

@ -78,9 +78,15 @@ static ssize_t acpi_table_show(struct kobject *kobj,
container_of(bin_attr, struct acpi_table_attr, attr);
struct acpi_table_header *table_header = NULL;
acpi_status status;
char name[ACPI_NAME_SIZE];
if (strncmp(table_attr->name, "NULL", 4))
memcpy(name, table_attr->name, ACPI_NAME_SIZE);
else
memcpy(name, "\0\0\0\0", 4);
status =
acpi_get_table(table_attr->name, table_attr->instance,
acpi_get_table(name, table_attr->instance,
&table_header);
if (ACPI_FAILURE(status))
return -ENODEV;
@ -95,21 +101,24 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
struct acpi_table_header *header = NULL;
struct acpi_table_attr *attr = NULL;
memcpy(table_attr->name, table_header->signature, ACPI_NAME_SIZE);
if (table_header->signature[0] != '\0')
memcpy(table_attr->name, table_header->signature,
ACPI_NAME_SIZE);
else
memcpy(table_attr->name, "NULL", 4);
list_for_each_entry(attr, &acpi_table_attr_list, node) {
if (!memcmp(table_header->signature, attr->name,
ACPI_NAME_SIZE))
if (!memcmp(table_attr->name, 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);
!acpi_get_table
(table_header->signature, 2, &header)))
sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
table_attr->instance);
table_attr->attr.size = 0;
table_attr->attr.read = acpi_table_show;
@ -167,7 +176,6 @@ static int acpi_system_sysfs_init(void)
#define COUNT_ERROR 2 /* other */
#define NUM_COUNTERS_EXTRA 3
#define ACPI_EVENT_VALID 0x01
struct event_counter {
u32 count;
u32 flags;
@ -312,12 +320,6 @@ static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle)
} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
result = acpi_get_event_status(index - num_gpes, status);
/*
* sleep/power button GPE/Fixed Event is enabled after acpi_system_init,
* check the status at runtime and mark it as valid once it's enabled
*/
if (!result && (*status & ACPI_EVENT_FLAG_ENABLED))
all_counters[index].flags |= ACPI_EVENT_VALID;
end:
return result;
}
@ -346,12 +348,14 @@ static ssize_t counter_show(struct kobject *kobj,
if (result)
goto end;
if (!(all_counters[index].flags & ACPI_EVENT_VALID))
if (!(status & ACPI_EVENT_FLAG_HANDLE))
size += sprintf(buf + size, " invalid");
else if (status & ACPI_EVENT_FLAG_ENABLED)
size += sprintf(buf + size, " enable");
size += sprintf(buf + size, " enabled");
else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
size += sprintf(buf + size, " wake_enabled");
else
size += sprintf(buf + size, " disable");
size += sprintf(buf + size, " disabled");
end:
size += sprintf(buf + size, "\n");
@ -385,7 +389,7 @@ static ssize_t counter_set(struct kobject *kobj,
if (result)
goto end;
if (!(all_counters[index].flags & ACPI_EVENT_VALID)) {
if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
printk(KERN_WARNING PREFIX
"Can not change Invalid GPE/Fixed Event status\n");
return -EINVAL;
@ -394,10 +398,10 @@ static ssize_t counter_set(struct kobject *kobj,
if (index < num_gpes) {
if (!strcmp(buf, "disable\n") &&
(status & ACPI_EVENT_FLAG_ENABLED))
result = acpi_disable_gpe(handle, index, ACPI_NOT_ISR);
result = acpi_disable_gpe(handle, index);
else if (!strcmp(buf, "enable\n") &&
!(status & ACPI_EVENT_FLAG_ENABLED))
result = acpi_enable_gpe(handle, index, ACPI_NOT_ISR);
result = acpi_enable_gpe(handle, index);
else if (!strcmp(buf, "clear\n") &&
(status & ACPI_EVENT_FLAG_SET))
result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR);

2
drivers/acpi/tables/tbfadt.c
View file

@ -304,7 +304,7 @@ static void acpi_tb_convert_fadt(void)
* 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) {
if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
acpi_gbl_FADT.preferred_profile = 0;
acpi_gbl_FADT.pstate_control = 0;
acpi_gbl_FADT.cst_control = 0;

9
drivers/acpi/thermal.c
View file

@ -47,7 +47,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define ACPI_THERMAL_COMPONENT 0x04000000
#define ACPI_THERMAL_CLASS "thermal_zone"
#define ACPI_THERMAL_DEVICE_NAME "Thermal Zone"
#define ACPI_THERMAL_FILE_STATE "state"
@ -576,7 +575,7 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
tz->trips.critical.flags.enabled);
acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
tz->device->dev.bus_id,
dev_name(&tz->device->dev),
ACPI_THERMAL_NOTIFY_CRITICAL,
tz->trips.critical.flags.enabled);
@ -605,7 +604,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
tz->trips.hot.flags.enabled);
acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
tz->device->dev.bus_id,
dev_name(&tz->device->dev),
ACPI_THERMAL_NOTIFY_HOT,
tz->trips.hot.flags.enabled);
@ -1592,14 +1591,14 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
acpi_thermal_check(tz);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, 0);
dev_name(&device->dev), event, 0);
break;
case ACPI_THERMAL_NOTIFY_DEVICES:
acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);
acpi_thermal_check(tz);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, 0);
dev_name(&device->dev), event, 0);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,

24
drivers/acpi/video.c
View file

@ -41,7 +41,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define ACPI_VIDEO_COMPONENT 0x08000000
#define ACPI_VIDEO_CLASS "video"
#define ACPI_VIDEO_BUS_NAME "Video Bus"
#define ACPI_VIDEO_DEVICE_NAME "Video Device"
@ -739,6 +738,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
device->cap._DSS = 1;
}
if (acpi_video_backlight_support())
max_level = acpi_video_init_brightness(device);
if (device->cap._BCL && device->cap._BCM && max_level > 0) {
@ -785,8 +785,11 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
printk(KERN_ERR PREFIX "Create sysfs link\n");
}
if (device->cap._DCS && device->cap._DSS){
static int count = 0;
if (acpi_video_display_switch_support()) {
if (device->cap._DCS && device->cap._DSS) {
static int count;
char *name;
name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
if (!name)
@ -796,7 +799,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
NULL, device, &acpi_output_properties);
kfree(name);
}
return;
}
}
/*
@ -842,11 +845,16 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
static int acpi_video_bus_check(struct acpi_video_bus *video)
{
acpi_status status = -ENOENT;
struct device *dev;
if (!video)
return -EINVAL;
dev = acpi_get_physical_pci_device(video->device->handle);
if (!dev)
return -ENODEV;
put_device(dev);
/* Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
*/
@ -2094,12 +2102,6 @@ static int __init acpi_video_init(void)
{
int result = 0;
/*
acpi_dbg_level = 0xFFFFFFFF;
acpi_dbg_layer = 0x08000000;
*/
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
return -ENODEV;

267
drivers/acpi/video_detect.c Normal file
View file

@ -0,0 +1,267 @@
/*
* Copyright (C) 2008 SuSE Linux Products GmbH
* Thomas Renninger <trenn@suse.de>
*
* May be copied or modified under the terms of the GNU General Public License
*
* video_detect.c:
* Provides acpi_is_video_device() for early scanning of ACPI devices in scan.c
* There a Linux specific (Spec does not provide a HID for video devices) is
* assinged
*
* After PCI devices are glued with ACPI devices
* acpi_get_physical_pci_device() can be called to identify ACPI graphics
* devices for which a real graphics card is plugged in
*
* Now acpi_video_get_capabilities() can be called to check which
* capabilities the graphics cards plugged in support. The check for general
* video capabilities will be triggered by the first caller of
* acpi_video_get_capabilities(NULL); which will happen when the first
* backlight (or display output) switching supporting driver calls:
* acpi_video_backlight_support();
*
* Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B)
* are available, video.ko should be used to handle the device.
*
* Otherwise vendor specific drivers like thinkpad_acpi, asus_acpi,
* sony_acpi,... can take care about backlight brightness and display output
* switching.
*
* If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)
* this file will not be compiled, acpi_video_get_capabilities() and
* acpi_video_backlight_support() will always return 0 and vendor specific
* drivers always can handle backlight.
*
*/
#include <linux/acpi.h>
#include <linux/dmi.h>
ACPI_MODULE_NAME("video");
#define _COMPONENT ACPI_VIDEO_COMPONENT
static long acpi_video_support;
static bool acpi_video_caps_checked;
static acpi_status
acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,
void **retyurn_value)
{
long *cap = context;
acpi_handle h_dummy;
if (ACPI_SUCCESS(acpi_get_handle(handle, "_BCM", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(handle, "_BCL", &h_dummy))) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found generic backlight "
"support\n"));
*cap |= ACPI_VIDEO_BACKLIGHT;
/* We have backlight support, no need to scan further */
return AE_CTRL_TERMINATE;
}
return 0;
}
/* Returns true if the device is a video device which can be handled by
* video.ko.
* The device will get a Linux specific CID added in scan.c to
* identify the device as an ACPI graphics device
* Be aware that the graphics device may not be physically present
* Use acpi_video_get_capabilities() to detect general ACPI video
* capabilities of present cards
*/
long acpi_is_video_device(struct acpi_device *device)
{
acpi_handle h_dummy;
long video_caps = 0;
if (!device)
return 0;
/* Does this device able to support video switching ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
/* Does this device able to retrieve a video ROM ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
/* Does this device able to configure which video head to be POSTed ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) &&
ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy)))
video_caps |= ACPI_VIDEO_DEVICE_POSTING;
/* Only check for backlight functionality if one of the above hit. */
if (video_caps)
acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle,
ACPI_UINT32_MAX, acpi_backlight_cap_match,
&video_caps, NULL);
return video_caps;
}
EXPORT_SYMBOL(acpi_is_video_device);
static acpi_status
find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
{
long *cap = context;
struct device *dev;
struct acpi_device *acpi_dev;
const struct acpi_device_id video_ids[] = {
{ACPI_VIDEO_HID, 0},
{"", 0},
};
if (acpi_bus_get_device(handle, &acpi_dev))
return AE_OK;
if (!acpi_match_device_ids(acpi_dev, video_ids)) {
dev = acpi_get_physical_pci_device(handle);
if (!dev)
return AE_OK;
put_device(dev);
*cap |= acpi_is_video_device(acpi_dev);
}
return AE_OK;
}
/*
* Returns the video capabilities of a specific ACPI graphics device
*
* if NULL is passed as argument all ACPI devices are enumerated and
* all graphics capabilities of physically present devices are
* summerized and returned. This is cached and done only once.
*/
long acpi_video_get_capabilities(acpi_handle graphics_handle)
{
long caps = 0;
struct acpi_device *tmp_dev;
acpi_status status;
if (acpi_video_caps_checked && graphics_handle == NULL)
return acpi_video_support;
if (!graphics_handle) {
/* Only do the global walk through all graphics devices once */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, find_video,
&caps, NULL);
/* There might be boot param flags set already... */
acpi_video_support |= caps;
acpi_video_caps_checked = 1;
/* Add blacklists here. Be careful to use the right *DMI* bits
* to still be able to override logic via boot params, e.g.:
*
* if (dmi_name_in_vendors("XY")) {
* acpi_video_support |=
* ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR;
* acpi_video_support |=
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
} else {
status = acpi_bus_get_device(graphics_handle, &tmp_dev);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Invalid device"));
return 0;
}
acpi_walk_namespace(ACPI_TYPE_DEVICE, graphics_handle,
ACPI_UINT32_MAX, find_video,
&caps, NULL);
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "We have 0x%lX video support %s %s\n",
graphics_handle ? caps : acpi_video_support,
graphics_handle ? "on device " : "in general",
graphics_handle ? acpi_device_bid(tmp_dev) : ""));
return caps;
}
EXPORT_SYMBOL(acpi_video_get_capabilities);
/* Returns true if video.ko can do backlight switching */
int acpi_video_backlight_support(void)
{
/*
* We must check whether the ACPI graphics device is physically plugged
* in. Therefore this must be called after binding PCI and ACPI devices
*/
if (!acpi_video_caps_checked)
acpi_video_get_capabilities(NULL);
/* First check for boot param -> highest prio */
if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO)
return 1;
/* Then check for DMI blacklist -> second highest prio */
if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_DMI_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_DMI_VIDEO)
return 1;
/* Then go the default way */
return acpi_video_support & ACPI_VIDEO_BACKLIGHT;
}
EXPORT_SYMBOL(acpi_video_backlight_support);
/*
* Returns true if video.ko can do display output switching.
* This does not work well/at all with binary graphics drivers
* which disable system io ranges and do it on their own.
*/
int acpi_video_display_switch_support(void)
{
if (!acpi_video_caps_checked)
acpi_video_get_capabilities(NULL);
if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO)
return 1;
if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO)
return 1;
return acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING;
}
EXPORT_SYMBOL(acpi_video_display_switch_support);
/*
* Use acpi_display_output=vendor/video or acpi_backlight=vendor/video
* To force that backlight or display output switching is processed by vendor
* specific acpi drivers or video.ko driver.
*/
int __init acpi_backlight(char *str)
{
if (str == NULL || *str == '\0')
return 1;
else {
if (!strcmp("vendor", str))
acpi_video_support |=
ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR;
if (!strcmp("video", str))
acpi_video_support |=
ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
}
return 1;
}
__setup("acpi_backlight=", acpi_backlight);
int __init acpi_display_output(char *str)
{
if (str == NULL || *str == '\0')
return 1;
else {
if (!strcmp("vendor", str))
acpi_video_support |=
ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR;
if (!strcmp("video", str))
acpi_video_support |=
ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
}
return 1;
}
__setup("acpi_display_output=", acpi_display_output);

2
drivers/acpi/wmi.c
View file

@ -660,7 +660,7 @@ static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
wblock->handler(event, wblock->handler_data);
acpi_bus_generate_netlink_event(
device->pnp.device_class, device->dev.bus_id,
device->pnp.device_class, dev_name(&device->dev),
event, 0);
break;
}

4
drivers/char/sonypi.c
View file

@ -523,7 +523,7 @@ static int acpi_driver_registered;
static int sonypi_ec_write(u8 addr, u8 value)
{
#ifdef CONFIG_ACPI_EC
#ifdef CONFIG_ACPI
if (SONYPI_ACPI_ACTIVE)
return ec_write(addr, value);
#endif
@ -539,7 +539,7 @@ static int sonypi_ec_write(u8 addr, u8 value)
static int sonypi_ec_read(u8 addr, u8 *value)
{
#ifdef CONFIG_ACPI_EC
#ifdef CONFIG_ACPI
if (SONYPI_ACPI_ACTIVE)
return ec_read(addr, value);
#endif

3
drivers/idle/Kconfig
View file

@ -1,5 +1,6 @@
menu "Memory power savings"
depends on X86_64
config I7300_IDLE_IOAT_CHANNEL
bool
@ -7,7 +8,7 @@ config I7300_IDLE_IOAT_CHANNEL
config I7300_IDLE
tristate "Intel chipset idle memory power saving driver"
select I7300_IDLE_IOAT_CHANNEL
depends on X86_64 && EXPERIMENTAL
depends on EXPERIMENTAL
help
Enable memory power savings when idle with certain Intel server
chipsets. The chipset must have I/O AT support, such as the

4
drivers/misc/Kconfig
View file

@ -230,7 +230,7 @@ config HP_WMI
config MSI_LAPTOP
tristate "MSI Laptop Extras"
depends on X86
depends on ACPI_EC
depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by MSI (MICRO-STAR
@ -260,7 +260,7 @@ config PANASONIC_LAPTOP
config COMPAL_LAPTOP
tristate "Compal Laptop Extras"
depends on X86
depends on ACPI_EC
depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by Compal:

6
drivers/misc/acer-wmi.c
View file

@ -1297,6 +1297,12 @@ static int __init acer_wmi_init(void)
set_quirks();
if (!acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
interface->capability &= ~ACER_CAP_BRIGHTNESS;
printk(ACER_INFO "Brightness must be controlled by "
"generic video driver\n");
}
if (platform_driver_register(&acer_platform_driver)) {
printk(ACER_ERR "Unable to register platform driver.\n");
goto error_platform_register;

4
drivers/misc/asus-laptop.c
View file

@ -1208,9 +1208,13 @@ static int __init asus_laptop_init(void)
dev = acpi_get_physical_device(hotk->device->handle);
if (!acpi_video_backlight_support()) {
result = asus_backlight_init(dev);
if (result)
goto fail_backlight;
} else
printk(ASUS_INFO "Brightness ignored, must be controlled by "
"ACPI video driver\n");
result = asus_led_init(dev);
if (result)

2
drivers/misc/compal-laptop.c
View file

@ -326,12 +326,14 @@ static int __init compal_init(void)
/* Register backlight stuff */
if (!acpi_video_backlight_support()) {
compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
&compalbl_ops);
if (IS_ERR(compalbl_device))
return PTR_ERR(compalbl_device);
compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
}
ret = platform_driver_register(&compal_driver);
if (ret)

6
drivers/misc/eeepc-laptop.c
View file

@ -825,9 +825,15 @@ static int __init eeepc_laptop_init(void)
return -ENODEV;
}
dev = acpi_get_physical_device(ehotk->device->handle);
if (!acpi_video_backlight_support()) {
result = eeepc_backlight_init(dev);
if (result)
goto fail_backlight;
} else
printk(EEEPC_INFO "Backlight controlled by ACPI video "
"driver\n");
result = eeepc_hwmon_init(dev);
if (result)
goto fail_hwmon;

23
drivers/misc/fujitsu-laptop.c
View file

@ -464,6 +464,14 @@ static int dmi_check_cb_s6410(const struct dmi_system_id *id)
return 0;
}
static int dmi_check_cb_s6420(const struct dmi_system_id *id)
{
dmi_check_cb_common(id);
fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
return 0;
}
static int dmi_check_cb_p8010(const struct dmi_system_id *id)
{
dmi_check_cb_common(id);
@ -473,7 +481,7 @@ static int dmi_check_cb_p8010(const struct dmi_system_id *id)
return 0;
}
static struct dmi_system_id __initdata fujitsu_dmi_table[] = {
static struct dmi_system_id fujitsu_dmi_table[] = {
{
.ident = "Fujitsu Siemens S6410",
.matches = {
@ -481,6 +489,13 @@ static struct dmi_system_id __initdata fujitsu_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
},
.callback = dmi_check_cb_s6410},
{
.ident = "Fujitsu Siemens S6420",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
},
.callback = dmi_check_cb_s6420},
{
.ident = "Fujitsu LifeBook P8010",
.matches = {
@ -990,16 +1005,16 @@ static int __init fujitsu_init(void)
/* Register backlight stuff */
if (!acpi_video_backlight_support()) {
fujitsu->bl_device =
backlight_device_register("fujitsu-laptop", NULL, NULL,
&fujitsubl_ops);
if (IS_ERR(fujitsu->bl_device))
return PTR_ERR(fujitsu->bl_device);
max_brightness = fujitsu->max_brightness;
fujitsu->bl_device->props.max_brightness = max_brightness - 1;
fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
}
ret = platform_driver_register(&fujitsupf_driver);
if (ret)
@ -1035,6 +1050,7 @@ fail_hotkey:
fail_backlight:
if (fujitsu->bl_device)
backlight_device_unregister(fujitsu->bl_device);
fail_platform_device2:
@ -1062,6 +1078,7 @@ static void __exit fujitsu_cleanup(void)
&fujitsupf_attribute_group);
platform_device_unregister(fujitsu->pf_device);
platform_driver_unregister(&fujitsupf_driver);
if (fujitsu->bl_device)
backlight_device_unregister(fujitsu->bl_device);
acpi_bus_unregister_driver(&acpi_fujitsu_driver);

10
drivers/misc/intel_menlow.c
View file

@ -52,6 +52,11 @@ MODULE_LICENSE("GPL");
#define MEMORY_ARG_CUR_BANDWIDTH 1
#define MEMORY_ARG_MAX_BANDWIDTH 0
/*
* GTHS returning 'n' would mean that [0,n-1] states are supported
* In that case max_cstate would be n-1
* GTHS returning '0' would mean that no bandwidth control states are supported
*/
static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
unsigned long *max_state)
{
@ -71,6 +76,9 @@ static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
if (ACPI_FAILURE(status))
return -EFAULT;
if (!value)
return -EINVAL;
*max_state = value - 1;
return 0;
}
@ -121,7 +129,7 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
if (memory_get_int_max_bandwidth(cdev, &max_state))
return -EFAULT;
if (max_state < 0 || state > max_state)
if (state > max_state)
return -EINVAL;
arg_list.count = 1;

10
drivers/misc/msi-laptop.c
View file

@ -347,12 +347,16 @@ static int __init msi_init(void)
/* Register backlight stuff */
msibl_device = backlight_device_register("msi-laptop-bl", NULL, NULL,
&msibl_ops);
if (acpi_video_backlight_support()) {
printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
"by ACPI video driver\n");
} else {
msibl_device = backlight_device_register("msi-laptop-bl", NULL,
NULL, &msibl_ops);
if (IS_ERR(msibl_device))
return PTR_ERR(msibl_device);
msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
}
ret = platform_driver_register(&msipf_driver);
if (ret)

6
drivers/misc/sony-laptop.c
View file

@ -1038,7 +1038,11 @@ static int sony_nc_add(struct acpi_device *device)
goto outinput;
}
if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
if (!acpi_video_backlight_support()) {
printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
"controlled by ACPI video driver\n");
} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
&handle))) {
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);

23
drivers/misc/thinkpad_acpi.c
View file

@ -4932,16 +4932,25 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
*/
b = tpacpi_check_std_acpi_brightness_support();
if (b > 0) {
if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
printk(TPACPI_NOTICE
"Lenovo BIOS switched to ACPI backlight "
"control mode\n");
}
if (acpi_video_backlight_support()) {
if (brightness_enable > 1) {
printk(TPACPI_NOTICE
"standard ACPI backlight interface "
"available, not loading native one...\n");
"Standard ACPI backlight interface "
"available, not loading native one.\n");
return 1;
} else if (brightness_enable == 1) {
printk(TPACPI_NOTICE
"Backlight control force enabled, even if standard "
"ACPI backlight interface is available\n");
}
} else {
if (brightness_enable > 1) {
printk(TPACPI_NOTICE
"Standard ACPI backlight interface not "
"available, thinkpad_acpi native "
"brightness control enabled\n");
}
}
}

2
include/acpi/acpi_bus.h
View file

@ -380,6 +380,8 @@ struct acpi_bus_type {
int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);
struct device *acpi_get_physical_pci_device(acpi_handle);
/* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);

22
include/acpi/acpi_drivers.h
View file

@ -31,8 +31,24 @@
#define ACPI_MAX_STRING 80
/*
* Please update drivers/acpi/debug.c and Documentation/acpi/debug.txt
* if you add to this list.
*/
#define ACPI_BUS_COMPONENT 0x00010000
#define ACPI_AC_COMPONENT 0x00020000
#define ACPI_BATTERY_COMPONENT 0x00040000
#define ACPI_BUTTON_COMPONENT 0x00080000
#define ACPI_SBS_COMPONENT 0x00100000
#define ACPI_FAN_COMPONENT 0x00200000
#define ACPI_PCI_COMPONENT 0x00400000
#define ACPI_POWER_COMPONENT 0x00800000
#define ACPI_CONTAINER_COMPONENT 0x01000000
#define ACPI_SYSTEM_COMPONENT 0x02000000
#define ACPI_THERMAL_COMPONENT 0x04000000
#define ACPI_MEMORY_DEVICE_COMPONENT 0x08000000
#define ACPI_VIDEO_COMPONENT 0x10000000
#define ACPI_PROCESSOR_COMPONENT 0x20000000
/*
* _HID definitions
@ -41,6 +57,7 @@
*/
#define ACPI_POWER_HID "LNXPOWER"
#define ACPI_PROCESSOR_OBJECT_HID "ACPI_CPU"
#define ACPI_PROCESSOR_HID "ACPI0007"
#define ACPI_SYSTEM_HID "LNXSYSTM"
#define ACPI_THERMAL_HID "LNXTHERM"
@ -54,7 +71,6 @@
PCI
-------------------------------------------------------------------------- */
#define ACPI_PCI_COMPONENT 0x00400000
/* ACPI PCI Interrupt Link (pci_link.c) */
@ -86,7 +102,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_device *device, int domain,
Power Resource
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_POWER
int acpi_device_sleep_wake(struct acpi_device *dev,
int enable, int sleep_state, int dev_state);
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state);
@ -94,15 +109,12 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev);
int acpi_power_get_inferred_state(struct acpi_device *device);
int acpi_power_transition(struct acpi_device *device, int state);
extern int acpi_power_nocheck;
#endif
/* --------------------------------------------------------------------------
Embedded Controller
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_EC
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
#endif
/* --------------------------------------------------------------------------
Processor

4
include/acpi/acpixf.h
View file

@ -252,9 +252,9 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status);
acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type);
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number);
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number);
acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);

1
include/acpi/actypes.h
View file

@ -525,6 +525,7 @@ typedef u32 acpi_event_status;
#define ACPI_EVENT_FLAG_ENABLED (acpi_event_status) 0x01
#define ACPI_EVENT_FLAG_WAKE_ENABLED (acpi_event_status) 0x02
#define ACPI_EVENT_FLAG_SET (acpi_event_status) 0x04
#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
/*
* General Purpose Events (GPE)

48
include/linux/acpi.h
View file

@ -163,8 +163,6 @@ struct acpi_pci_driver {
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
#ifdef CONFIG_ACPI_EC
extern int ec_read(u8 addr, u8 *val);
extern int ec_write(u8 addr, u8 val);
extern int ec_transaction(u8 command,
@ -172,8 +170,6 @@ extern int ec_transaction(u8 command,
u8 *rdata, unsigned rdata_len,
int force_poll);
#endif /*CONFIG_ACPI_EC*/
#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
typedef void (*wmi_notify_handler) (u32 value, void *context);
@ -194,6 +190,50 @@ extern bool wmi_has_guid(const char *guid);
#endif /* CONFIG_ACPI_WMI */
#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
#define ACPI_VIDEO_DEVICE_POSTING 0x0002
#define ACPI_VIDEO_ROM_AVAILABLE 0x0004
#define ACPI_VIDEO_BACKLIGHT 0x0008
#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
extern long acpi_is_video_device(struct acpi_device *device);
extern int acpi_video_backlight_support(void);
extern int acpi_video_display_switch_support(void);
#else
static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
{
return 0;
}
static inline long acpi_is_video_device(struct acpi_device *device)
{
return 0;
}
static inline int acpi_video_backlight_support(void)
{
return 0;
}
static inline int acpi_video_display_switch_support(void)
{
return 0;
}
#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
extern int acpi_blacklisted(void);
#ifdef CONFIG_DMI
extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);