summaryrefslogtreecommitdiffstats
path: root/drivers/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/Kconfig23
-rw-r--r--drivers/acpi/battery.c673
-rw-r--r--drivers/acpi/bay.c19
-rw-r--r--drivers/acpi/bus.c4
-rw-r--r--drivers/acpi/dock.c127
-rw-r--r--drivers/acpi/ec.c247
-rw-r--r--drivers/acpi/event.c153
-rw-r--r--drivers/acpi/events/evgpeblk.c4
-rw-r--r--drivers/acpi/events/evrgnini.c1
-rw-r--r--drivers/acpi/glue.c2
-rw-r--r--drivers/acpi/numa.c31
-rw-r--r--drivers/acpi/osl.c42
-rw-r--r--drivers/acpi/pci_link.c2
-rw-r--r--drivers/acpi/processor_core.c13
-rw-r--r--drivers/acpi/processor_idle.c24
-rw-r--r--drivers/acpi/processor_throttling.c410
-rw-r--r--drivers/acpi/sbs.c33
-rw-r--r--drivers/acpi/sleep/main.c19
-rw-r--r--drivers/acpi/sleep/poweroff.c41
-rw-r--r--drivers/acpi/system.c165
-rw-r--r--drivers/acpi/tables/tbfadt.c44
-rw-r--r--drivers/acpi/thermal.c24
-rw-r--r--drivers/acpi/utilities/uteval.c17
-rw-r--r--drivers/acpi/video.c124
24 files changed, 1592 insertions, 650 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 139f41f033d..408b45168ab 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -2,16 +2,12 @@
# 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
@@ -49,7 +45,6 @@ if ACPI
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.
@@ -82,7 +77,6 @@ config ACPI_SLEEP_PROC_SLEEP
config ACPI_PROCFS
bool "Procfs interface (deprecated)"
- depends on ACPI
default y
---help---
The Procfs interface for ACPI is made optional for backward compatibility.
@@ -124,7 +118,7 @@ config ACPI_BUTTON
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
@@ -280,6 +274,14 @@ config ACPI_DEBUG
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
@@ -330,7 +332,6 @@ config ACPI_CONTAINER
config ACPI_HOTPLUG_MEMORY
tristate "Memory Hotplug"
- depends on ACPI
depends on MEMORY_HOTPLUG
default n
help
@@ -359,5 +360,3 @@ config ACPI_SBS
to today's ACPI "Control Method" battery.
endif # ACPI
-
-endmenu
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index e64c76c8b72..cad932de383 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -43,21 +43,30 @@
#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);
@@ -76,7 +85,7 @@ static struct acpi_driver acpi_battery_driver = {
},
};
-struct acpi_battery_status {
+struct acpi_battery_state {
acpi_integer state;
acpi_integer present_rate;
acpi_integer remaining_capacity;
@@ -99,33 +108,111 @@ struct acpi_battery_info {
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;
@@ -133,16 +220,20 @@ acpi_battery_get_info(struct acpi_battery *battery,
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;
@@ -150,41 +241,29 @@ acpi_battery_get_info(struct acpi_battery *battery,
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;
@@ -192,16 +271,19 @@ acpi_battery_get_status(struct acpi_battery *battery,
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;
@@ -209,55 +291,49 @@ acpi_battery_get_status(struct acpi_battery *battery,
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;
@@ -268,65 +344,114 @@ acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
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;
}
}
@@ -335,37 +460,33 @@ static void acpi_battery_check_present(struct acpi_battery *battery)
-------------------------------------------------------------------------- */
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");
@@ -396,7 +517,6 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
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",
@@ -411,50 +531,40 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
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
@@ -490,48 +600,43 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
(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
@@ -543,27 +648,113 @@ acpi_battery_write_alarm(struct file *file,
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)
@@ -571,35 +762,51 @@ 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),
@@ -609,38 +816,16 @@ static int acpi_battery_add_fs(struct acpi_device *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;
@@ -648,15 +833,12 @@ static int acpi_battery_add_fs(struct acpi_device *device)
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;
}
@@ -673,7 +855,6 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
struct acpi_battery *battery = data;
struct acpi_device *device = NULL;
-
if (!battery)
return;
@@ -684,8 +865,10 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
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,
@@ -702,7 +885,6 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_status status = 0;
struct acpi_battery *battery = NULL;
-
if (!device)
return -EINVAL;
@@ -710,15 +892,21 @@ static int acpi_battery_add(struct acpi_device *device)
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;
@@ -727,6 +915,7 @@ static int acpi_battery_add(struct acpi_device *device)
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Installing notify handler"));
result = -ENODEV;
goto end;
}
@@ -736,11 +925,14 @@ static int acpi_battery_add(struct acpi_device *device)
device->status.battery_present ? "present" : "absent");
end:
+
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
}
+ mutex_unlock(&battery->mutex);
+
return result;
}
@@ -749,18 +941,27 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
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;
@@ -775,7 +976,10 @@ static int acpi_battery_resume(struct acpi_device *device)
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)
@@ -800,7 +1004,6 @@ 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);
diff --git a/drivers/acpi/bay.c b/drivers/acpi/bay.c
index fb3f31b5e69..56a5b3fffeb 100644
--- a/drivers/acpi/bay.c
+++ b/drivers/acpi/bay.c
@@ -288,6 +288,11 @@ static int bay_add(acpi_handle handle, int id)
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;
@@ -328,18 +333,12 @@ static void bay_notify(acpi_handle handle, u32 event, void *data)
{
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
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e5084ececb6..6b2658c9624 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -292,6 +292,10 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
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;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 4546bf873ae..6192c8be66d 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -40,8 +40,15 @@ MODULE_AUTHOR("Kristen Carlson Accardi");
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 {
@@ -63,6 +70,7 @@ struct dock_dependent_device {
};
#define DOCK_DOCKING 0x00000001
+#define DOCK_UNDOCKING 0x00000002
#define DOCK_EVENT 3
#define UNDOCK_EVENT 2
@@ -327,12 +335,20 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
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);
}
/**
@@ -380,12 +396,11 @@ static void handle_dock(struct dock_station *ds, int dock)
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;
@@ -394,7 +409,8 @@ static void handle_dock(struct dock_station *ds, int dock)
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);
}
@@ -420,6 +436,16 @@ static inline void complete_dock(struct dock_station *ds)
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
@@ -550,7 +576,7 @@ static int handle_eject_request(struct dock_station *ds, u32 event)
printk(KERN_ERR PREFIX "Unable to undock!\n");
return -EBUSY;
}
-
+ complete_undock(ds);
return 0;
}
@@ -594,7 +620,11 @@ static void dock_notify(acpi_handle handle, u32 event, void *data)
* 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);
@@ -653,6 +683,17 @@ static ssize_t show_docked(struct device *dev,
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
*/
static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
@@ -675,16 +716,15 @@ static ssize_t show_dock_uid(struct device *dev,
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
@@ -711,33 +751,53 @@ static int dock_add(acpi_handle 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;
}
@@ -750,6 +810,7 @@ static int dock_add(acpi_handle handle)
dd = alloc_dock_dependent_device(handle);
if (!dd) {
kfree(dock_station);
+ dock_station = NULL;
ret = -ENOMEM;
goto dock_add_err_unregister;
}
@@ -773,10 +834,13 @@ static int dock_add(acpi_handle handle)
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;
}
@@ -804,12 +868,15 @@ static int dock_remove(void)
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;
}
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 82f496c0767..10e851021ec 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -34,25 +34,26 @@
#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,
@@ -61,6 +62,7 @@ enum ec_command {
ACPI_EC_BURST_DISABLE = 0x83,
ACPI_EC_COMMAND_QUERY = 0x84,
};
+
/* EC events */
enum ec_event {
ACPI_EC_EVENT_OBF_1 = 1, /* Output buffer full */
@@ -94,6 +96,16 @@ static struct acpi_driver acpi_ec_driver = {
/* 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;
@@ -104,6 +116,7 @@ static struct acpi_ec {
atomic_t query_pending;
atomic_t event_count;
wait_queue_head_t wait;
+ struct list_head list;
} *boot_ec, *first_ec;
/* --------------------------------------------------------------------------
@@ -245,7 +258,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
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;
}
@@ -394,21 +407,67 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
/* --------------------------------------------------------------------------
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(&copy, 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)
@@ -427,8 +486,7 @@ 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 ?
@@ -454,57 +512,35 @@ acpi_ec_space_setup(acpi_handle region_handle,
}
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;
@@ -597,9 +633,6 @@ static int acpi_ec_remove_fs(struct acpi_device *device)
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);
@@ -610,13 +643,52 @@ static struct acpi_ec *make_acpi_ec(void)
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)
@@ -629,8 +701,7 @@ static int acpi_ec_add(struct acpi_device *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;
}
@@ -641,6 +712,8 @@ static int acpi_ec_add(struct acpi_device *device)
/* 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;
@@ -651,22 +724,24 @@ static int acpi_ec_add(struct acpi_device *device)
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)
@@ -722,15 +797,13 @@ static int ec_install_handlers(struct acpi_ec *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;
@@ -740,14 +813,14 @@ static int acpi_ec_start(struct acpi_device *device)
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)
@@ -779,34 +852,6 @@ 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;
@@ -825,7 +870,7 @@ int __init acpi_ec_ecdt_probe(void)
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;
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 3b23562e6f9..dfa5853b17f 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -11,6 +11,8 @@
#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");
@@ -48,7 +50,6 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
static int chars_remaining = 0;
static char *ptr;
-
if (!chars_remaining) {
memset(&event, 0, sizeof(struct acpi_bus_event));
@@ -106,23 +107,161 @@ static const struct file_operations acpi_system_event_ops = {
.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);
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index 902c287b3a4..361ebe6c4a6 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -586,6 +586,10 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
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) {
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 400d90fca96..23ee7bc4a70 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -284,6 +284,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
}
if (!pci_device_node) {
+ ACPI_FREE(pci_id);
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
}
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 41427a41f62..4893e256e39 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -16,7 +16,7 @@
#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);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 0c9f15c54e8..ab04d848b19 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -36,13 +36,11 @@
ACPI_MODULE_NAME("numa");
static nodemask_t nodes_found_map = NODE_MASK_NONE;
-#define PXM_INVAL -1
-#define NID_INVAL -1
/* maps to convert between proximity domain and logical node ID */
-static int pxm_to_node_map[MAX_PXM_DOMAINS]
+static int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
= { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
-static int node_to_pxm_map[MAX_NUMNODES]
+static int __cpuinitdata node_to_pxm_map[MAX_NUMNODES]
= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
int pxm_to_node(int pxm)
@@ -59,6 +57,12 @@ int node_to_pxm(int node)
return node_to_pxm_map[node];
}
+void __acpi_map_pxm_to_node(int pxm, int node)
+{
+ pxm_to_node_map[pxm] = node;
+ node_to_pxm_map[node] = pxm;
+}
+
int acpi_map_pxm_to_node(int pxm)
{
int node = pxm_to_node_map[pxm];
@@ -67,8 +71,7 @@ int acpi_map_pxm_to_node(int pxm)
if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
return NID_INVAL;
node = first_unset_node(nodes_found_map);
- pxm_to_node_map[pxm] = node;
- node_to_pxm_map[node] = pxm;
+ __acpi_map_pxm_to_node(pxm, node);
node_set(node, nodes_found_map);
}
@@ -83,7 +86,8 @@ void __cpuinit acpi_unmap_pxm_to_node(int node)
node_clear(node, nodes_found_map);
}
-void __init acpi_table_print_srat_entry(struct acpi_subtable_header * header)
+static void __init
+acpi_table_print_srat_entry(struct acpi_subtable_header *header)
{
ACPI_FUNCTION_NAME("acpi_table_print_srat_entry");
@@ -200,7 +204,7 @@ static int __init acpi_parse_srat(struct acpi_table_header *table)
return 0;
}
-int __init
+static int __init
acpi_table_parse_srat(enum acpi_srat_type id,
acpi_table_entry_handler handler, unsigned int max_entries)
{
@@ -211,14 +215,13 @@ acpi_table_parse_srat(enum acpi_srat_type id,
int __init acpi_numa_init(void)
{
- int result;
-
/* SRAT: Static Resource Affinity Table */
if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
- result = acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
- acpi_parse_processor_affinity,
- NR_CPUS);
- result = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); // IA64 specific
+ acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
+ acpi_parse_processor_affinity, NR_CPUS);
+ acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
+ acpi_parse_memory_affinity,
+ NR_NODE_MEMBLKS);
}
/* SLIT: System Locality Information Table */
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 2e7ba615d76..12c09fafce9 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -77,13 +77,7 @@ static struct workqueue_struct *kacpi_notify_wq;
#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[];
@@ -1098,7 +1092,7 @@ void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags flags)
acpi_status
acpi_os_create_cache(char *name, u16 size, u16 depth, acpi_cache_t ** cache)
{
- *cache = kmem_cache_create(name, size, 0, 0, NULL, NULL);
+ *cache = kmem_cache_create(name, size, 0, 0, NULL);
if (*cache == NULL)
return AE_ERROR;
else
@@ -1183,17 +1177,10 @@ acpi_os_validate_interface (char *interface)
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;
}
@@ -1227,36 +1214,14 @@ acpi_os_validate_address (
}
#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)
*/
@@ -1268,7 +1233,6 @@ static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {
DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),
},
},
-#endif
{}
};
#endif /* CONFIG_DMI */
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index acc59477137..3448edd61dc 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -733,7 +733,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
/* 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]) {
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index f7de02a6f49..81aceb5da7c 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -66,6 +66,7 @@
#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
@@ -84,6 +85,8 @@ static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
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",
@@ -115,7 +118,6 @@ struct acpi_processor_errata errata __read_mostly;
static int acpi_processor_errata_piix4(struct pci_dev *dev)
{
- u8 rev = 0;
u8 value1 = 0;
u8 value2 = 0;
@@ -127,9 +129,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
* Note that 'dev' references the PIIX4 ACPI Controller.
*/
- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
-
- switch (rev) {
+ switch (dev->revision) {
case 0:
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
break;
@@ -147,7 +147,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
break;
}
- switch (rev) {
+ switch (dev->revision) {
case 0: /* PIIX4 A-step */
case 1: /* PIIX4 B-step */
@@ -699,6 +699,9 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
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));
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 80ffc782991..a898991f77c 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -475,7 +475,7 @@ static void acpi_processor_idle(void)
/* Get end time (ticks) */
t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
-#ifdef CONFIG_GENERIC_TIME
+#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C2, so notify users */
mark_tsc_unstable("possible TSC halt in C2");
#endif
@@ -490,7 +490,17 @@ static void acpi_processor_idle(void)
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()) {
/*
@@ -499,7 +509,7 @@ static void acpi_processor_idle(void)
*/
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();
}
@@ -511,13 +521,13 @@ static void acpi_processor_idle(void)
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);
}
-#ifdef CONFIG_GENERIC_TIME
+#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C3, so notify users */
mark_tsc_unstable("TSC halts in C3");
#endif
@@ -961,9 +971,9 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
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 {
/*
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index b33486009f4..3f55d1f90c1 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -44,17 +44,231 @@
#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;
@@ -94,13 +308,115 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
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;
@@ -113,6 +429,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
if (state == pr->throttling.state)
return 0;
+ if (state < pr->throttling_platform_limit)
+ return -EPERM;
/*
* Calculate the duty_value and duty_mask.
*/
@@ -165,12 +483,51 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
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",
@@ -182,6 +539,21 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
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"));
@@ -262,7 +634,6 @@ static int acpi_processor_throttling_seq_show(struct seq_file *seq,
int i = 0;
int result = 0;
-
if (!pr)
goto end;
@@ -280,15 +651,25 @@ static int acpi_processor_throttling_seq_show(struct seq_file *seq,
}
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;
@@ -301,7 +682,7 @@ static int acpi_processor_throttling_open_fs(struct inode *inode,
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)
{
@@ -310,7 +691,6 @@ static ssize_t acpi_processor_write_throttling(struct file * file,
struct acpi_processor *pr = m->private;
char state_string[12] = { '\0' };
-
if (!pr || (count > sizeof(state_string) - 1))
return -EINVAL;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index c1bae106833..974d00ccfe8 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -127,7 +127,7 @@ static int acpi_sbs_resume(struct acpi_device *device);
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,
@@ -176,10 +176,8 @@ struct acpi_battery {
};
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;
@@ -511,7 +509,7 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
"acpi_sbs_read_word() failed"));
goto end;
}
-
+ sbs->sbsm_present = 1;
sbs->sbsm_batteries_supported = battery_system_info & 0x000f;
end:
@@ -1630,13 +1628,12 @@ static int acpi_sbs_add(struct acpi_device *device)
{
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;
@@ -1653,7 +1650,7 @@ static int acpi_sbs_add(struct acpi_device *device)
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);
@@ -1665,24 +1662,10 @@ static int acpi_sbs_add(struct acpi_device *device)
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,
@@ -1702,8 +1685,6 @@ static int acpi_sbs_add(struct acpi_device *device)
}
}
- sbs->handle = device->handle;
-
init_timer(&sbs->update_timer);
result = acpi_check_update_proc(sbs);
if (result)
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index bc7e16ec839..3279e72a94f 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -210,17 +210,28 @@ static void acpi_hibernation_finish(void)
/* 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)
+{
+ acpi_status status;
+
+ status = acpi_hw_disable_all_gpes();
+
+ return ACPI_SUCCESS(status) ? 0 : -EFAULT;
+}
+
+static void acpi_hibernation_restore_cleanup(void)
+{
+ acpi_hw_enable_all_runtime_gpes();
}
static struct hibernation_ops acpi_hibernation_ops = {
.prepare = acpi_hibernation_prepare,
.enter = acpi_hibernation_enter,
.finish = acpi_hibernation_finish,
+ .pre_restore = acpi_hibernation_pre_restore,
+ .restore_cleanup = acpi_hibernation_restore_cleanup,
};
#endif /* CONFIG_SOFTWARE_SUSPEND */
diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c
index d9801eff648..39e40d56b03 100644
--- a/drivers/acpi/sleep/poweroff.c
+++ b/drivers/acpi/sleep/poweroff.c
@@ -39,7 +39,13 @@ int acpi_sleep_prepare(u32 acpi_state)
#ifdef CONFIG_PM
-void acpi_power_off(void)
+static void acpi_power_off_prepare(void)
+{
+ /* Prepare to power off the system */
+ acpi_sleep_prepare(ACPI_STATE_S5);
+}
+
+static void acpi_power_off(void)
{
/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
printk("%s called\n", __FUNCTION__);
@@ -48,30 +54,6 @@ void acpi_power_off(void)
acpi_enter_sleep_state(ACPI_STATE_S5);
}
-static int acpi_shutdown(struct sys_device *x)
-{
- switch (system_state) {
- case SYSTEM_POWER_OFF:
- /* Prepare to power off the system */
- return acpi_sleep_prepare(ACPI_STATE_S5);
- case SYSTEM_SUSPEND_DISK:
- /* Prepare to suspend the system to disk */
- return acpi_sleep_prepare(ACPI_STATE_S4);
- default:
- return 0;
- }
-}
-
-static struct sysdev_class acpi_sysclass = {
- set_kset_name("acpi"),
- .shutdown = acpi_shutdown
-};
-
-static struct sys_device device_acpi = {
- .id = 0,
- .cls = &acpi_sysclass,
-};
-
static int acpi_poweroff_init(void)
{
if (!acpi_disabled) {
@@ -81,13 +63,8 @@ static int acpi_poweroff_init(void)
status =
acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
- int error;
- error = sysdev_class_register(&acpi_sysclass);
- if (!error)
- error = sysdev_register(&device_acpi);
- if (!error)
- pm_power_off = acpi_power_off;
- return error;
+ pm_power_off_prepare = acpi_power_off_prepare;
+ pm_power_off = acpi_power_off;
}
}
return 0;
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 83a8d309790..edee2806e37 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -39,15 +39,12 @@ ACPI_MODULE_NAME("system");
#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);
@@ -58,9 +55,126 @@ static int param_get_acpica_version(char *buffer, struct kernel_param *kp) {
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)
{
@@ -80,7 +194,6 @@ static const struct file_operations acpi_system_info_ops = {
.llseek = seq_lseek,
.release = single_release,
};
-#endif
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
loff_t *);
@@ -97,13 +210,11 @@ acpi_system_read_dsdt(struct file *file,
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;
}
@@ -123,28 +234,21 @@ acpi_system_read_fadt(struct file *file,
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);
@@ -153,7 +257,6 @@ static int __init acpi_system_init(void)
else {
entry->proc_fops = &acpi_system_info_ops;
}
-#endif
/* 'dsdt' [R] */
name = ACPI_SYSTEM_FILE_DSDT;
@@ -177,12 +280,32 @@ static int __init acpi_system_init(void)
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);
diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c
index 1285e91474f..002bb33003a 100644
--- a/drivers/acpi/tables/tbfadt.c
+++ b/drivers/acpi/tables/tbfadt.c
@@ -211,14 +211,17 @@ void acpi_tb_parse_fadt(acpi_native_uint table_index, u8 flags)
* 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,
@@ -227,10 +230,12 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
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)));
@@ -251,7 +256,7 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
* 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.
@@ -292,8 +297,23 @@ static void acpi_tb_convert_fadt(void)
}
/*
- * 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 =
@@ -349,18 +369,6 @@ static void acpi_tb_convert_fadt(void)
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;
- }
}
/******************************************************************************
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 88a6fc7fd27..58f1338981b 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -40,6 +40,7 @@
#include <linux/jiffies.h>
#include <linux/kmod.h>
#include <linux/seq_file.h>
+#include <linux/reboot.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
@@ -59,7 +60,6 @@
#define ACPI_THERMAL_NOTIFY_CRITICAL 0xF0
#define ACPI_THERMAL_NOTIFY_HOT 0xF1
#define ACPI_THERMAL_MODE_ACTIVE 0x00
-#define ACPI_THERMAL_PATH_POWEROFF "/sbin/poweroff"
#define ACPI_THERMAL_MAX_ACTIVE 10
#define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65
@@ -419,26 +419,6 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz)
return 0;
}
-static int acpi_thermal_call_usermode(char *path)
-{
- char *argv[2] = { NULL, NULL };
- char *envp[3] = { NULL, NULL, NULL };
-
-
- if (!path)
- return -EINVAL;
-
- argv[0] = path;
-
- /* minimal command environment */
- envp[0] = "HOME=/";
- envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-
- call_usermodehelper(argv[0], argv, envp, 0);
-
- return 0;
-}
-
static int acpi_thermal_critical(struct acpi_thermal *tz)
{
if (!tz || !tz->trips.critical.flags.valid)
@@ -456,7 +436,7 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
tz->trips.critical.flags.enabled);
- acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
+ orderly_poweroff(true);
return 0;
}
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
index 8ec6f8e4813..f112af433e3 100644
--- a/drivers/acpi/utilities/uteval.c
+++ b/drivers/acpi/utilities/uteval.c
@@ -62,16 +62,13 @@ acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
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 */
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 00d25b34725..04ea697f72b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -33,6 +33,7 @@
#include <linux/seq_file.h>
#include <linux/backlight.h>
+#include <linux/video_output.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
@@ -169,6 +170,7 @@ struct acpi_video_device {
struct acpi_device *dev;
struct acpi_video_device_brightness *brightness;
struct backlight_device *backlight;
+ struct output_device *output_dev;
};
/* bus */
@@ -272,13 +274,17 @@ static int acpi_video_get_next_level(struct acpi_video_device *device,
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)
{
unsigned long cur_level;
struct acpi_video_device *vd =
- (struct acpi_video_device *)class_get_devdata(&bd->class_dev);
+ (struct acpi_video_device *)bl_get_data(bd);
acpi_video_device_lcd_get_level_current(vd, &cur_level);
return (int) cur_level;
}
@@ -287,7 +293,7 @@ static int acpi_video_set_brightness(struct backlight_device *bd)
{
int request_level = bd->props.brightness;
struct acpi_video_device *vd =
- (struct acpi_video_device *)class_get_devdata(&bd->class_dev);
+ (struct acpi_video_device *)bl_get_data(bd);
acpi_video_device_lcd_set_level(vd, request_level);
return 0;
}
@@ -297,6 +303,28 @@ static struct backlight_ops acpi_backlight_ops = {
.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
-------------------------------------------------------------------------- */
@@ -531,7 +559,6 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
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;
@@ -565,50 +592,55 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
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;
@@ -626,6 +658,17 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
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;
}
@@ -1669,6 +1712,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
ACPI_DEVICE_NOTIFY,
acpi_video_device_notify);
backlight_device_unregister(device->backlight);
+ video_output_unregister(device->output_dev);
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 17:17:53 +0000