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Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release

This commit is contained in:
Len Brown 2009-06-24 01:19:50 -04:00
parent 4e8a2372f9 e86435eb91 7fe2a6c275 0705495d90 35a7c64fbc 152a4e630f 86e437f077 c8d72a5e76 7a04b8491a ee1ca48fae 9eccbc2f67 7e275cc4e8 7b768f07dc 8cb24c8fd7 113b3a2b90 d73772474f 056c308d3e 871043bc46
commit fbe8cddd2d
39 changed files with 1708 additions and 851 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/kernel-parameters.txt
View File

@ -229,14 +229,6 @@ and is between 256 and 4096 characters. It is defined in the file
to assume that this machine's pmtimer latches its value
and always returns good values.
acpi.power_nocheck= [HW,ACPI]
Format: 1/0 enable/disable the check of power state.
On some bogus BIOS the _PSC object/_STA object of
power resource can't return the correct device power
state. In such case it is unneccessary to check its
power state again in power transition.
1 : disable the power state check
acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
Format: { level | edge | high | low }

47
Documentation/laptops/thinkpad-acpi.txt
View File

@ -920,7 +920,7 @@ The available commands are:
echo '<LED number> off' >/proc/acpi/ibm/led
echo '<LED number> blink' >/proc/acpi/ibm/led
The <LED number> range is 0 to 7. The set of LEDs that can be
The <LED number> range is 0 to 15. The set of LEDs that can be
controlled varies from model to model. Here is the common ThinkPad
mapping:
@ -932,6 +932,11 @@ mapping:
5 - UltraBase battery slot
6 - (unknown)
7 - standby
8 - dock status 1
9 - dock status 2
10, 11 - (unknown)
12 - thinkvantage
13, 14, 15 - (unknown)
All of the above can be turned on and off and can be made to blink.
@ -940,10 +945,12 @@ sysfs notes:
The ThinkPad LED sysfs interface is described in detail by the LED class
documentation, in Documentation/leds-class.txt.
The leds are named (in LED ID order, from 0 to 7):
The LEDs are named (in LED ID order, from 0 to 12):
"tpacpi::power", "tpacpi:orange:batt", "tpacpi:green:batt",
"tpacpi::dock_active", "tpacpi::bay_active", "tpacpi::dock_batt",
"tpacpi::unknown_led", "tpacpi::standby".
"tpacpi::unknown_led", "tpacpi::standby", "tpacpi::dock_status1",
"tpacpi::dock_status2", "tpacpi::unknown_led2", "tpacpi::unknown_led3",
"tpacpi::thinkvantage".
Due to limitations in the sysfs LED class, if the status of the LED
indicators cannot be read due to an error, thinkpad-acpi will report it as
@ -958,6 +965,12 @@ ThinkPad indicator LED should blink in hardware accelerated mode, use the
"timer" trigger, and leave the delay_on and delay_off parameters set to
zero (to request hardware acceleration autodetection).
LEDs that are known not to exist in a given ThinkPad model are not
made available through the sysfs interface. If you have a dock and you
notice there are LEDs listed for your ThinkPad that do not exist (and
are not in the dock), or if you notice that there are missing LEDs,
a report to ibm-acpi-devel@lists.sourceforge.net is appreciated.
ACPI sounds -- /proc/acpi/ibm/beep
----------------------------------
@ -1156,17 +1169,19 @@ may not be distinct. Later Lenovo models that implement the ACPI
display backlight brightness control methods have 16 levels, ranging
from 0 to 15.
There are two interfaces to the firmware for direct brightness control,
EC and UCMS (or CMOS). To select which one should be used, use the
brightness_mode module parameter: brightness_mode=1 selects EC mode,
brightness_mode=2 selects UCMS mode, brightness_mode=3 selects EC
mode with NVRAM backing (so that brightness changes are remembered
across shutdown/reboot).
For IBM ThinkPads, there are two interfaces to the firmware for direct
brightness control, EC and UCMS (or CMOS). To select which one should be
used, use the brightness_mode module parameter: brightness_mode=1 selects
EC mode, brightness_mode=2 selects UCMS mode, brightness_mode=3 selects EC
mode with NVRAM backing (so that brightness changes are remembered across
shutdown/reboot).
The driver tries to select which interface to use from a table of
defaults for each ThinkPad model. If it makes a wrong choice, please
report this as a bug, so that we can fix it.
Lenovo ThinkPads only support brightness_mode=2 (UCMS).
When display backlight brightness controls are available through the
standard ACPI interface, it is best to use it instead of this direct
ThinkPad-specific interface. The driver will disable its native
@ -1254,7 +1269,7 @@ Fan control and monitoring: fan speed, fan enable/disable
procfs: /proc/acpi/ibm/fan
sysfs device attributes: (hwmon "thinkpad") fan1_input, pwm1,
pwm1_enable
pwm1_enable, fan2_input
sysfs hwmon driver attributes: fan_watchdog
NOTE NOTE NOTE: fan control operations are disabled by default for
@ -1267,6 +1282,9 @@ from the hardware registers of the embedded controller. This is known
to work on later R, T, X and Z series ThinkPads but may show a bogus
value on other models.
Some Lenovo ThinkPads support a secondary fan. This fan cannot be
controlled separately, it shares the main fan control.
Fan levels:
Most ThinkPad fans work in "levels" at the firmware interface. Level 0
@ -1397,6 +1415,11 @@ hwmon device attribute fan1_input:
which can take up to two minutes. May return rubbish on older
ThinkPads.
hwmon device attribute fan2_input:
Fan tachometer reading, in RPM, for the secondary fan.
Available only on some ThinkPads. If the secondary fan is
not installed, will always read 0.
hwmon driver attribute fan_watchdog:
Fan safety watchdog timer interval, in seconds. Minimum is
1 second, maximum is 120 seconds. 0 disables the watchdog.
@ -1555,3 +1578,7 @@ Sysfs interface changelog:
0x020300: hotkey enable/disable support removed, attributes
hotkey_bios_enabled and hotkey_enable deprecated and
marked for removal.
0x020400: Marker for 16 LEDs support. Also, LEDs that are known
to not exist in a given model are not registered with
the LED sysfs class anymore.

7
MAINTAINERS
View File

@ -230,6 +230,13 @@ L: linux-acenic@sunsite.dk
S: Maintained
F: drivers/net/acenic*
ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER
P: Peter Feuerer
M: peter@piie.net
W: http://piie.net/?section=acerhdf
S: Maintained
F: drivers/platform/x86/acerhdf.c
ACER WMI LAPTOP EXTRAS
P: Carlos Corbacho
M: carlos@strangeworlds.co.uk

12
arch/ia64/kernel/acpi-processor.c
View File

@ -71,3 +71,15 @@ void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
}
EXPORT_SYMBOL(arch_acpi_processor_init_pdc);
void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr)
{
if (pr->pdc) {
kfree(pr->pdc->pointer->buffer.pointer);
kfree(pr->pdc->pointer);
kfree(pr->pdc);
pr->pdc = NULL;
}
}
EXPORT_SYMBOL(arch_acpi_processor_cleanup_pdc);

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

@ -144,6 +144,7 @@ static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
#else /* !CONFIG_ACPI */
#define acpi_disabled 1
#define acpi_lapic 0
#define acpi_ioapic 0
static inline void acpi_noirq_set(void) { }

3
arch/x86/include/asm/pci_x86.h
View File

@ -121,6 +121,9 @@ extern int __init pcibios_init(void);
extern int __init pci_mmcfg_arch_init(void);
extern void __init pci_mmcfg_arch_free(void);
extern struct acpi_mcfg_allocation *pci_mmcfg_config;
extern int pci_mmcfg_config_num;
/*
* AMD Fam10h CPUs are buggy, and cannot access MMIO config space
* on their northbrige except through the * %eax register. As such, you MUST

80
arch/x86/kernel/acpi/boot.c
View File

@ -44,11 +44,7 @@
static int __initdata acpi_force = 0;
u32 acpi_rsdt_forced;
#ifdef CONFIG_ACPI
int acpi_disabled = 0;
#else
int acpi_disabled = 1;
#endif
int acpi_disabled;
EXPORT_SYMBOL(acpi_disabled);
#ifdef CONFIG_X86_64
@ -122,72 +118,6 @@ void __init __acpi_unmap_table(char *map, unsigned long size)
early_iounmap(map, size);
}
#ifdef CONFIG_PCI_MMCONFIG
static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
struct acpi_mcfg_allocation *pci_mmcfg_config;
int pci_mmcfg_config_num;
static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg)
{
if (!strcmp(mcfg->header.oem_id, "SGI"))
acpi_mcfg_64bit_base_addr = TRUE;
return 0;
}
int __init acpi_parse_mcfg(struct acpi_table_header *header)
{
struct acpi_table_mcfg *mcfg;
unsigned long i;
int config_size;
if (!header)
return -EINVAL;
mcfg = (struct acpi_table_mcfg *)header;
/* how many config structures do we have */
pci_mmcfg_config_num = 0;
i = header->length - sizeof(struct acpi_table_mcfg);
while (i >= sizeof(struct acpi_mcfg_allocation)) {
++pci_mmcfg_config_num;
i -= sizeof(struct acpi_mcfg_allocation);
};
if (pci_mmcfg_config_num == 0) {
printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
return -ENODEV;
}
config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
if (!pci_mmcfg_config) {
printk(KERN_WARNING PREFIX
"No memory for MCFG config tables\n");
return -ENOMEM;
}
memcpy(pci_mmcfg_config, &mcfg[1], config_size);
acpi_mcfg_oem_check(mcfg);
for (i = 0; i < pci_mmcfg_config_num; ++i) {
if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) &&
!acpi_mcfg_64bit_base_addr) {
printk(KERN_ERR PREFIX
"MMCONFIG not in low 4GB of memory\n");
kfree(pci_mmcfg_config);
pci_mmcfg_config_num = 0;
return -ENODEV;
}
}
return 0;
}
#endif /* CONFIG_PCI_MMCONFIG */
#ifdef CONFIG_X86_LOCAL_APIC
static int __init acpi_parse_madt(struct acpi_table_header *table)
{
@ -1517,14 +1447,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
},
},
{
.callback = force_acpi_ht,
.ident = "ASUS P4B266",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
DMI_MATCH(DMI_BOARD_NAME, "P4B266"),
},
},
{
.callback = force_acpi_ht,
.ident = "ASUS P2B-DS",

16
arch/x86/kernel/acpi/cstate.c
View File

@ -34,12 +34,22 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
flags->bm_check = 1;
else if (c->x86_vendor == X86_VENDOR_INTEL) {
/*
* Today all CPUs that support C3 share cache.
* TBD: This needs to look at cache shared map, once
* multi-core detection patch makes to the base.
* Today all MP CPUs that support C3 share cache.
* And caches should not be flushed by software while
* entering C3 type state.
*/
flags->bm_check = 1;
}
/*
* On all recent Intel platforms, ARB_DISABLE is a nop.
* So, set bm_control to zero to indicate that ARB_DISABLE
* is not required while entering C3 type state on
* P4, Core and beyond CPUs
*/
if (c->x86_vendor == X86_VENDOR_INTEL &&
(c->x86 > 0x6 || (c->x86 == 6 && c->x86_model >= 14)))
flags->bm_control = 0;
}
EXPORT_SYMBOL(acpi_processor_power_init_bm_check);

13
arch/x86/kernel/acpi/processor.c
View File

@ -72,6 +72,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
return;
}
/* Initialize _PDC data based on the CPU vendor */
void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
{
@ -85,3 +86,15 @@ void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
}
EXPORT_SYMBOL(arch_acpi_processor_init_pdc);
void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr)
{
if (pr->pdc) {
kfree(pr->pdc->pointer->buffer.pointer);
kfree(pr->pdc->pointer);
kfree(pr->pdc);
pr->pdc = NULL;
}
}
EXPORT_SYMBOL(arch_acpi_processor_cleanup_pdc);

65
arch/x86/pci/mmconfig-shared.c
View File

@ -523,6 +523,69 @@ reject:
static int __initdata known_bridge;
static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
struct acpi_mcfg_allocation *pci_mmcfg_config;
int pci_mmcfg_config_num;
static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg)
{
if (!strcmp(mcfg->header.oem_id, "SGI"))
acpi_mcfg_64bit_base_addr = TRUE;
return 0;
}
static int __init pci_parse_mcfg(struct acpi_table_header *header)
{
struct acpi_table_mcfg *mcfg;
unsigned long i;
int config_size;
if (!header)
return -EINVAL;
mcfg = (struct acpi_table_mcfg *)header;
/* how many config structures do we have */
pci_mmcfg_config_num = 0;
i = header->length - sizeof(struct acpi_table_mcfg);
while (i >= sizeof(struct acpi_mcfg_allocation)) {
++pci_mmcfg_config_num;
i -= sizeof(struct acpi_mcfg_allocation);
};
if (pci_mmcfg_config_num == 0) {
printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
return -ENODEV;
}
config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
if (!pci_mmcfg_config) {
printk(KERN_WARNING PREFIX
"No memory for MCFG config tables\n");
return -ENOMEM;
}
memcpy(pci_mmcfg_config, &mcfg[1], config_size);
acpi_mcfg_oem_check(mcfg);
for (i = 0; i < pci_mmcfg_config_num; ++i) {
if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) &&
!acpi_mcfg_64bit_base_addr) {
printk(KERN_ERR PREFIX
"MMCONFIG not in low 4GB of memory\n");
kfree(pci_mmcfg_config);
pci_mmcfg_config_num = 0;
return -ENODEV;
}
}
return 0;
}
static void __init __pci_mmcfg_init(int early)
{
/* MMCONFIG disabled */
@ -543,7 +606,7 @@ static void __init __pci_mmcfg_init(int early)
}
if (!known_bridge)
acpi_table_parse(ACPI_SIG_MCFG, acpi_parse_mcfg);
acpi_table_parse(ACPI_SIG_MCFG, pci_parse_mcfg);
pci_mmcfg_reject_broken(early);

16
drivers/acpi/blacklist.c
View File

@ -192,6 +192,22 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
},
},
{
.callback = dmi_disable_osi_vista,
.ident = "Sony VGN-NS10J_S",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
},
},
{
.callback = dmi_disable_osi_vista,
.ident = "Sony VGN-SR290J",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
},
},
/*
* BIOS invocation of _OSI(Linux) is almost always a BIOS bug.

40
drivers/acpi/glue.c
View File

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

25
drivers/acpi/osl.c
View File

@ -79,6 +79,7 @@ static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
static struct workqueue_struct *kacpid_wq;
static struct workqueue_struct *kacpi_notify_wq;
static struct workqueue_struct *kacpi_hotplug_wq;
struct acpi_res_list {
resource_size_t start;
@ -192,8 +193,10 @@ acpi_status acpi_os_initialize1(void)
{
kacpid_wq = create_singlethread_workqueue("kacpid");
kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify");
kacpi_hotplug_wq = create_singlethread_workqueue("kacpi_hotplug");
BUG_ON(!kacpid_wq);
BUG_ON(!kacpi_notify_wq);
BUG_ON(!kacpi_hotplug_wq);
return AE_OK;
}
@ -206,6 +209,7 @@ acpi_status acpi_os_terminate(void)
destroy_workqueue(kacpid_wq);
destroy_workqueue(kacpi_notify_wq);
destroy_workqueue(kacpi_hotplug_wq);
return AE_OK;
}
@ -716,6 +720,7 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
acpi_status status = AE_OK;
struct acpi_os_dpc *dpc;
struct workqueue_struct *queue;
work_func_t func;
int ret;
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"Scheduling function [%p(%p)] for deferred execution.\n",
@ -740,15 +745,17 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
dpc->function = function;
dpc->context = context;
if (!hp) {
INIT_WORK(&dpc->work, acpi_os_execute_deferred);
queue = (type == OSL_NOTIFY_HANDLER) ?
kacpi_notify_wq : kacpid_wq;
ret = queue_work(queue, &dpc->work);
} else {
INIT_WORK(&dpc->work, acpi_os_execute_hp_deferred);
ret = schedule_work(&dpc->work);
}
/*
* We can't run hotplug code in keventd_wq/kacpid_wq/kacpid_notify_wq
* because the hotplug code may call driver .remove() functions,
* which invoke flush_scheduled_work/acpi_os_wait_events_complete
* to flush these workqueues.
*/
queue = hp ? kacpi_hotplug_wq :
(type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq);
func = hp ? acpi_os_execute_hp_deferred : acpi_os_execute_deferred;
INIT_WORK(&dpc->work, func);
ret = queue_work(queue, &dpc->work);
if (!ret) {
printk(KERN_ERR PREFIX

329
drivers/acpi/pci_bind.c
View File

@ -24,12 +24,7 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/pm.h>
#include <linux/pci.h>
#include <linux/acpi.h>
#include <acpi/acpi_bus.h>
@ -38,310 +33,76 @@
#define _COMPONENT ACPI_PCI_COMPONENT
ACPI_MODULE_NAME("pci_bind");
struct acpi_pci_data {
struct acpi_pci_id id;
static int acpi_pci_unbind(struct acpi_device *device)
{
struct pci_dev *dev;
dev = acpi_get_pci_dev(device->handle);
if (!dev || !dev->subordinate)
goto out;
acpi_pci_irq_del_prt(dev->subordinate);
device->ops.bind = NULL;
device->ops.unbind = NULL;
out:
pci_dev_put(dev);
return 0;
}
static int acpi_pci_bind(struct acpi_device *device)
{
acpi_status status;
acpi_handle handle;
struct pci_bus *bus;
struct pci_dev *dev;
};
static int acpi_pci_unbind(struct acpi_device *device);
static void acpi_pci_data_handler(acpi_handle handle, u32 function,
void *context)
{
/* TBD: Anything we need to do here? */
return;
}
/**
* acpi_get_pci_id
* ------------------
* This function is used by the ACPI Interpreter (a.k.a. Core Subsystem)
* to resolve PCI information for ACPI-PCI devices defined in the namespace.
* This typically occurs when resolving PCI operation region information.
*/
acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
{
int result = 0;
acpi_status status = AE_OK;
struct acpi_device *device = NULL;
struct acpi_pci_data *data = NULL;
if (!id)
return AE_BAD_PARAMETER;
result = acpi_bus_get_device(handle, &device);
if (result) {
printk(KERN_ERR PREFIX
"Invalid ACPI Bus context for device %s\n",
acpi_device_bid(device));
return AE_NOT_EXIST;
}
status = acpi_get_data(handle, acpi_pci_data_handler, (void **)&data);
if (ACPI_FAILURE(status) || !data) {
ACPI_EXCEPTION((AE_INFO, status,
"Invalid ACPI-PCI context for device %s",
acpi_device_bid(device)));
return status;
}
*id = data->id;
dev = acpi_get_pci_dev(device->handle);
if (!dev)
return 0;
/*
id->segment = data->id.segment;
id->bus = data->id.bus;
id->device = data->id.device;
id->function = data->id.function;
* Install the 'bind' function to facilitate callbacks for
* children of the P2P bridge.
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %s has PCI address %04x:%02x:%02x.%d\n",
acpi_device_bid(device), id->segment, id->bus,
id->device, id->function));
return AE_OK;
}
EXPORT_SYMBOL(acpi_get_pci_id);
int acpi_pci_bind(struct acpi_device *device)
{
int result = 0;
acpi_status status;
struct acpi_pci_data *data;
struct acpi_pci_data *pdata;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_handle handle;
if (!device || !device->parent)
return -EINVAL;
data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
if (ACPI_FAILURE(status)) {
kfree(data);
return -ENODEV;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI device [%s]...\n",
(char *)buffer.pointer));
/*
* Segment & Bus
* -------------
* These are obtained via the parent device's ACPI-PCI context.
*/
status = acpi_get_data(device->parent->handle, acpi_pci_data_handler,
(void **)&pdata);
if (ACPI_FAILURE(status) || !pdata || !pdata->bus) {
ACPI_EXCEPTION((AE_INFO, status,
"Invalid ACPI-PCI context for parent device %s",
acpi_device_bid(device->parent)));
result = -ENODEV;
goto end;
}
data->id.segment = pdata->id.segment;
data->id.bus = pdata->bus->number;
/*
* Device & Function
* -----------------
* These are simply obtained from the device's _ADR method. Note
* that a value of zero is valid.
*/
data->id.device = device->pnp.bus_address >> 16;
data->id.function = device->pnp.bus_address & 0xFFFF;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %04x:%02x:%02x.%d\n",
data->id.segment, data->id.bus, data->id.device,
data->id.function));
/*
* TBD: Support slot devices (e.g. function=0xFFFF).
*/
/*
* Locate PCI Device
* -----------------
* Locate matching device in PCI namespace. If it doesn't exist
* this typically means that the device isn't currently inserted
* (e.g. docking station, port replicator, etc.).
*/
data->dev = pci_get_slot(pdata->bus,
PCI_DEVFN(data->id.device, data->id.function));
if (!data->dev) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %04x:%02x:%02x.%d not present in PCI namespace\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function));
result = -ENODEV;
goto end;
}
if (!data->dev->bus) {
printk(KERN_ERR PREFIX
"Device %04x:%02x:%02x.%d has invalid 'bus' field\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function);
result = -ENODEV;
goto end;
}
/*
* PCI Bridge?
* -----------
* If so, set the 'bus' field and install the 'bind' function to
* facilitate callbacks for all of its children.
*/
if (data->dev->subordinate) {
if (dev->subordinate) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %04x:%02x:%02x.%d is a PCI bridge\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function));
data->bus = data->dev->subordinate;
pci_domain_nr(dev->bus), dev->bus->number,
PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)));
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
}
/*
* Attach ACPI-PCI Context
* -----------------------
* Thus binding the ACPI and PCI devices.
*/
status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to attach ACPI-PCI context to device %s",
acpi_device_bid(device)));
result = -ENODEV;
goto end;
}
/*
* PCI Routing Table
* -----------------
* Evaluate and parse _PRT, if exists. This code is independent of
* PCI bridges (above) to allow parsing of _PRT objects within the
* scope of non-bridge devices. Note that _PRTs within the scope of
* a PCI bridge assume the bridge's subordinate bus number.
* Evaluate and parse _PRT, if exists. This code allows parsing of
* _PRT objects within the scope of non-bridge devices. Note that
* _PRTs within the scope of a PCI bridge assume the bridge's
* subordinate bus number.
*
* TBD: Can _PRTs exist within the scope of non-bridge PCI devices?
*/
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status)) {
if (data->bus) /* PCI-PCI bridge */
acpi_pci_irq_add_prt(device->handle, data->id.segment,
data->bus->number);
else /* non-bridge PCI device */
acpi_pci_irq_add_prt(device->handle, data->id.segment,
data->id.bus);
}
end:
kfree(buffer.pointer);
if (result) {
pci_dev_put(data->dev);
kfree(data);
}
return result;
}
static int acpi_pci_unbind(struct acpi_device *device)
{
int result = 0;
acpi_status status;
struct acpi_pci_data *data;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
if (!device || !device->parent)
return -EINVAL;
status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
if (ACPI_FAILURE(status))
return -ENODEV;
goto out;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unbinding PCI device [%s]...\n",
(char *) buffer.pointer));
kfree(buffer.pointer);
if (dev->subordinate)
bus = dev->subordinate;
else
bus = dev->bus;
status =
acpi_get_data(device->handle, acpi_pci_data_handler,
(void **)&data);
if (ACPI_FAILURE(status)) {
result = -ENODEV;
goto end;
}
acpi_pci_irq_add_prt(device->handle, bus);
status = acpi_detach_data(device->handle, acpi_pci_data_handler);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to detach data from device %s",
acpi_device_bid(device)));
result = -ENODEV;
goto end;
}
if (data->dev->subordinate) {
acpi_pci_irq_del_prt(data->id.segment, data->bus->number);
}
pci_dev_put(data->dev);
kfree(data);
end:
return result;
out:
pci_dev_put(dev);
return 0;
}
int
acpi_pci_bind_root(struct acpi_device *device,
struct acpi_pci_id *id, struct pci_bus *bus)
int acpi_pci_bind_root(struct acpi_device *device)
{
int result = 0;
acpi_status status;
struct acpi_pci_data *data = NULL;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
if (!device || !id || !bus) {
return -EINVAL;
}
data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->id = *id;
data->bus = bus;
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
if (ACPI_FAILURE(status)) {
kfree (data);
return -ENODEV;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI root bridge [%s] to "
"%04x:%02x\n", (char *)buffer.pointer,
id->segment, id->bus));
status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to attach ACPI-PCI context to device %s",
(char *)buffer.pointer));
result = -ENODEV;
goto end;
}
end:
kfree(buffer.pointer);
if (result != 0)
kfree(data);
return result;
return 0;
}

17
drivers/acpi/pci_irq.c
View File

@ -182,7 +182,7 @@ static void do_prt_fixups(struct acpi_prt_entry *entry,
}
}
static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
static int acpi_pci_irq_add_entry(acpi_handle handle, struct pci_bus *bus,
struct acpi_pci_routing_table *prt)
{
struct acpi_prt_entry *entry;
@ -196,8 +196,8 @@ static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
* 1=INTA, 2=INTB. We use the PCI encoding throughout, so convert
* it here.
*/
entry->id.segment = segment;
entry->id.bus = bus;
entry->id.segment = pci_domain_nr(bus);
entry->id.bus = bus->number;
entry->id.device = (prt->address >> 16) & 0xFFFF;
entry->pin = prt->pin + 1;
@ -242,7 +242,7 @@ static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
return 0;
}
int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
int acpi_pci_irq_add_prt(acpi_handle handle, struct pci_bus *bus)
{
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@ -271,7 +271,7 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
entry = buffer.pointer;
while (entry && (entry->length > 0)) {
acpi_pci_irq_add_entry(handle, segment, bus, entry);
acpi_pci_irq_add_entry(handle, bus, entry);
entry = (struct acpi_pci_routing_table *)
((unsigned long)entry + entry->length);
}
@ -280,16 +280,17 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
return 0;
}
void acpi_pci_irq_del_prt(int segment, int bus)
void acpi_pci_irq_del_prt(struct pci_bus *bus)
{
struct acpi_prt_entry *entry, *tmp;
printk(KERN_DEBUG
"ACPI: Delete PCI Interrupt Routing Table for %04x:%02x\n",
segment, bus);
pci_domain_nr(bus), bus->number);
spin_lock(&acpi_prt_lock);
list_for_each_entry_safe(entry, tmp, &acpi_prt_list, list) {
if (segment == entry->id.segment && bus == entry->id.bus) {
if (pci_domain_nr(bus) == entry->id.segment
&& bus->number == entry->id.bus) {
list_del(&entry->list);
kfree(entry);
}

297
drivers/acpi/pci_root.c
View File

@ -63,9 +63,10 @@ static struct acpi_driver acpi_pci_root_driver = {
struct acpi_pci_root {
struct list_head node;
struct acpi_device * device;
struct acpi_pci_id id;
struct acpi_device *device;
struct pci_bus *bus;
u16 segment;
u8 bus_nr;
u32 osc_support_set; /* _OSC state of support bits */
u32 osc_control_set; /* _OSC state of control bits */
@ -82,7 +83,7 @@ static DEFINE_MUTEX(osc_lock);
int acpi_pci_register_driver(struct acpi_pci_driver *driver)
{
int n = 0;
struct list_head *entry;
struct acpi_pci_root *root;
struct acpi_pci_driver **pptr = &sub_driver;
while (*pptr)
@ -92,9 +93,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
if (!driver->add)
return 0;
list_for_each(entry, &acpi_pci_roots) {
struct acpi_pci_root *root;
root = list_entry(entry, struct acpi_pci_root, node);
list_for_each_entry(root, &acpi_pci_roots, node) {
driver->add(root->device->handle);
n++;
}
@ -106,7 +105,7 @@ EXPORT_SYMBOL(acpi_pci_register_driver);
void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
{
struct list_head *entry;
struct acpi_pci_root *root;
struct acpi_pci_driver **pptr = &sub_driver;
while (*pptr) {
@ -120,28 +119,48 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
if (!driver->remove)
return;
list_for_each(entry, &acpi_pci_roots) {
struct acpi_pci_root *root;
root = list_entry(entry, struct acpi_pci_root, node);
list_for_each_entry(root, &acpi_pci_roots, node)
driver->remove(root->device->handle);
}
}
EXPORT_SYMBOL(acpi_pci_unregister_driver);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
{
struct acpi_pci_root *tmp;
struct acpi_pci_root *root;
list_for_each_entry(tmp, &acpi_pci_roots, node) {
if ((tmp->id.segment == (u16) seg) && (tmp->id.bus == (u16) bus))
return tmp->device->handle;
}
list_for_each_entry(root, &acpi_pci_roots, node)
if ((root->segment == (u16) seg) && (root->bus_nr == (u16) bus))
return root->device->handle;
return NULL;
}
EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
/**
* acpi_is_root_bridge - determine whether an ACPI CA node is a PCI root bridge
* @handle - the ACPI CA node in question.
*
* Note: we could make this API take a struct acpi_device * instead, but
* for now, it's more convenient to operate on an acpi_handle.
*/
int acpi_is_root_bridge(acpi_handle handle)
{
int ret;
struct acpi_device *device;
ret = acpi_bus_get_device(handle, &device);
if (ret)
return 0;
ret = acpi_match_device_ids(device, root_device_ids);
if (ret)
return 0;
else
return 1;
}
EXPORT_SYMBOL_GPL(acpi_is_root_bridge);
static acpi_status
get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
{
@ -161,19 +180,22 @@ get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
return AE_OK;
}
static acpi_status try_get_root_bridge_busnr(acpi_handle handle, int *busnum)
static acpi_status try_get_root_bridge_busnr(acpi_handle handle,
unsigned long long *bus)
{
acpi_status status;
int busnum;
*busnum = -1;
busnum = -1;
status =
acpi_walk_resources(handle, METHOD_NAME__CRS,
get_root_bridge_busnr_callback, busnum);
get_root_bridge_busnr_callback, &busnum);
if (ACPI_FAILURE(status))
return status;
/* Check if we really get a bus number from _CRS */
if (*busnum == -1)
if (busnum == -1)
return AE_ERROR;
*bus = busnum;
return AE_OK;
}
@ -298,6 +320,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
{
struct acpi_pci_root *root;
list_for_each_entry(root, &acpi_pci_roots, node) {
if (root->device->handle == handle)
return root;
@ -305,6 +328,87 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
return NULL;
}
struct acpi_handle_node {
struct list_head node;
acpi_handle handle;
};
/**
* acpi_get_pci_dev - convert ACPI CA handle to struct pci_dev
* @handle: the handle in question
*
* Given an ACPI CA handle, the desired PCI device is located in the
* list of PCI devices.
*
* If the device is found, its reference count is increased and this
* function returns a pointer to its data structure. The caller must
* decrement the reference count by calling pci_dev_put().
* If no device is found, %NULL is returned.
*/
struct pci_dev *acpi_get_pci_dev(acpi_handle handle)
{
int dev, fn;
unsigned long long adr;
acpi_status status;
acpi_handle phandle;
struct pci_bus *pbus;
struct pci_dev *pdev = NULL;
struct acpi_handle_node *node, *tmp;
struct acpi_pci_root *root;
LIST_HEAD(device_list);
/*
* Walk up the ACPI CA namespace until we reach a PCI root bridge.
*/
phandle = handle;
while (!acpi_is_root_bridge(phandle)) {
node = kzalloc(sizeof(struct acpi_handle_node), GFP_KERNEL);
if (!node)
goto out;
INIT_LIST_HEAD(&node->node);
node->handle = phandle;
list_add(&node->node, &device_list);
status = acpi_get_parent(phandle, &phandle);
if (ACPI_FAILURE(status))
goto out;
}
root = acpi_pci_find_root(phandle);
if (!root)
goto out;
pbus = root->bus;
/*
* Now, walk back down the PCI device tree until we return to our
* original handle. Assumes that everything between the PCI root
* bridge and the device we're looking for must be a P2P bridge.
*/
list_for_each_entry(node, &device_list, node) {
acpi_handle hnd = node->handle;
status = acpi_evaluate_integer(hnd, "_ADR", NULL, &adr);
if (ACPI_FAILURE(status))
goto out;
dev = (adr >> 16) & 0xffff;
fn = adr & 0xffff;
pdev = pci_get_slot(pbus, PCI_DEVFN(dev, fn));
if (hnd == handle)
break;
pbus = pdev->subordinate;
pci_dev_put(pdev);
}
out:
list_for_each_entry_safe(node, tmp, &device_list, node)
kfree(node);
return pdev;
}
EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
/**
* acpi_pci_osc_control_set - commit requested control to Firmware
* @handle: acpi_handle for the target ACPI object
@ -363,31 +467,46 @@ EXPORT_SYMBOL(acpi_pci_osc_control_set);
static int __devinit acpi_pci_root_add(struct acpi_device *device)
{
int result = 0;
struct acpi_pci_root *root = NULL;
struct acpi_pci_root *tmp;
acpi_status status = AE_OK;
unsigned long long value = 0;
acpi_handle handle = NULL;
unsigned long long segment, bus;
acpi_status status;
int result;
struct acpi_pci_root *root;
acpi_handle handle;
struct acpi_device *child;
u32 flags, base_flags;
segment = 0;
status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
&segment);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
printk(KERN_ERR PREFIX "can't evaluate _SEG\n");
return -ENODEV;
}
if (!device)
return -EINVAL;
/* Check _CRS first, then _BBN. If no _BBN, default to zero. */
bus = 0;
status = try_get_root_bridge_busnr(device->handle, &bus);
if (ACPI_FAILURE(status)) {
status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, NULL, &bus);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
printk(KERN_ERR PREFIX
"no bus number in _CRS and can't evaluate _BBN\n");
return -ENODEV;
}
}
root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
return -ENOMEM;
INIT_LIST_HEAD(&root->node);
INIT_LIST_HEAD(&root->node);
root->device = device;
root->segment = segment & 0xFFFF;
root->bus_nr = bus & 0xFF;
strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
device->driver_data = root;
device->ops.bind = acpi_pci_bind;
/*
* All supported architectures that use ACPI have support for
* PCI domains, so we indicate this in _OSC support capabilities.
@ -395,79 +514,6 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
acpi_pci_osc_support(root, flags);
/*
* Segment
* -------
* Obtained via _SEG, if exists, otherwise assumed to be zero (0).
*/
status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
&value);
switch (status) {
case AE_OK:
root->id.segment = (u16) value;
break;
case AE_NOT_FOUND:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Assuming segment 0 (no _SEG)\n"));
root->id.segment = 0;
break;
default:
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _SEG"));
result = -ENODEV;
goto end;
}
/*
* Bus
* ---
* Obtained via _BBN, if exists, otherwise assumed to be zero (0).
*/
status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, NULL,
&value);
switch (status) {
case AE_OK:
root->id.bus = (u16) value;
break;
case AE_NOT_FOUND:
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Assuming bus 0 (no _BBN)\n"));
root->id.bus = 0;
break;
default:
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BBN"));
result = -ENODEV;
goto end;
}
/* Some systems have wrong _BBN */
list_for_each_entry(tmp, &acpi_pci_roots, node) {
if ((tmp->id.segment == root->id.segment)
&& (tmp->id.bus == root->id.bus)) {
int bus = 0;
acpi_status status;
printk(KERN_ERR PREFIX
"Wrong _BBN value, reboot"
" and use option 'pci=noacpi'\n");
status = try_get_root_bridge_busnr(device->handle, &bus);
if (ACPI_FAILURE(status))
break;
if (bus != root->id.bus) {
printk(KERN_INFO PREFIX
"PCI _CRS %d overrides _BBN 0\n", bus);
root->id.bus = bus;
}
break;
}
}
/*
* Device & Function
* -----------------
* Obtained from _ADR (which has already been evaluated for us).
*/
root->id.device = device->pnp.bus_address >> 16;
root->id.function = device->pnp.bus_address & 0xFFFF;
/*
* TBD: Need PCI interface for enumeration/configuration of roots.
*/
@ -477,7 +523,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
printk(KERN_INFO PREFIX "%s [%s] (%04x:%02x)\n",
acpi_device_name(device), acpi_device_bid(device),
root->id.segment, root->id.bus);
root->segment, root->bus_nr);
/*
* Scan the Root Bridge
@ -486,11 +532,11 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
* PCI namespace does not get created until this call is made (and
* thus the root bridge's pci_dev does not exist).
*/
root->bus = pci_acpi_scan_root(device, root->id.segment, root->id.bus);
root->bus = pci_acpi_scan_root(device, segment, bus);
if (!root->bus) {
printk(KERN_ERR PREFIX
"Bus %04x:%02x not present in PCI namespace\n",
root->id.segment, root->id.bus);
root->segment, root->bus_nr);
result = -ENODEV;
goto end;
}
@ -500,7 +546,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
* -----------------------
* Thus binding the ACPI and PCI devices.
*/
result = acpi_pci_bind_root(device, &root->id, root->bus);
result = acpi_pci_bind_root(device);
if (result)
goto end;
@ -511,8 +557,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
*/
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status))
result = acpi_pci_irq_add_prt(device->handle, root->id.segment,
root->id.bus);
result = acpi_pci_irq_add_prt(device->handle, root->bus);
/*
* Scan and bind all _ADR-Based Devices
@ -531,42 +576,28 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (flags != base_flags)
acpi_pci_osc_support(root, flags);
end:
if (result) {
if (!list_empty(&root->node))
list_del(&root->node);
kfree(root);
}
return 0;
end:
if (!list_empty(&root->node))
list_del(&root->node);
kfree(root);
return result;
}
static int acpi_pci_root_start(struct acpi_device *device)
{
struct acpi_pci_root *root;
struct acpi_pci_root *root = acpi_driver_data(device);
list_for_each_entry(root, &acpi_pci_roots, node) {
if (root->device == device) {
pci_bus_add_devices(root->bus);
return 0;
}
}
return -ENODEV;
pci_bus_add_devices(root->bus);
return 0;
}
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
root = acpi_driver_data(device);
struct acpi_pci_root *root = acpi_driver_data(device);
kfree(root);
return 0;
}

28
drivers/acpi/power.c
View File

@ -194,7 +194,7 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
static int acpi_power_on(acpi_handle handle, struct acpi_device *dev)
{
int result = 0, state;
int result = 0;
int found = 0;
acpi_status status = AE_OK;
struct acpi_power_resource *resource = NULL;
@ -236,18 +236,6 @@ static int acpi_power_on(acpi_handle handle, struct acpi_device *dev)
if (ACPI_FAILURE(status))
return -ENODEV;
if (!acpi_power_nocheck) {
/*
* If acpi_power_nocheck is set, it is unnecessary to check
* the power state after power transition.
*/
result = acpi_power_get_state(resource->device->handle,
&state);
if (result)
return result;
if (state != ACPI_POWER_RESOURCE_STATE_ON)
return -ENOEXEC;
}
/* Update the power resource's _device_ power state */
resource->device->power.state = ACPI_STATE_D0;
@ -258,7 +246,7 @@ static int acpi_power_on(acpi_handle handle, struct acpi_device *dev)
static int acpi_power_off_device(acpi_handle handle, struct acpi_device *dev)
{
int result = 0, state;
int result = 0;
acpi_status status = AE_OK;
struct acpi_power_resource *resource = NULL;
struct list_head *node, *next;
@ -293,18 +281,6 @@ static int acpi_power_off_device(acpi_handle handle, struct acpi_device *dev)
if (ACPI_FAILURE(status))
return -ENODEV;
if (!acpi_power_nocheck) {
/*
* If acpi_power_nocheck is set, it is unnecessary to check
* the power state after power transition.
*/
result = acpi_power_get_state(handle, &state);
if (result)
return result;
if (state != ACPI_POWER_RESOURCE_STATE_OFF)
return -ENOEXEC;
}
/* Update the power resource's _device_ power state */
resource->device->power.state = ACPI_STATE_D3;

45
drivers/acpi/processor_core.c
View File

@ -89,7 +89,7 @@ static int acpi_processor_handle_eject(struct acpi_processor *pr);
static const struct acpi_device_id processor_device_ids[] = {
{ACPI_PROCESSOR_OBJECT_HID, 0},
{ACPI_PROCESSOR_HID, 0},
{"ACPI0007", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, processor_device_ids);
@ -596,7 +596,21 @@ static int acpi_processor_get_info(struct acpi_device *device)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No bus mastering arbitration control\n"));
if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_HID)) {
if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
/* Declared with "Processor" statement; match ProcessorID */
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
return -ENODEV;
}
/*
* TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
* >>> 'acpi_get_processor_id(acpi_id, &id)' in
* arch/xxx/acpi.c
*/
pr->acpi_id = object.processor.proc_id;
} else {
/*
* Declared with "Device" statement; match _UID.
* Note that we don't handle string _UIDs yet.
@ -611,20 +625,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
}
device_declaration = 1;
pr->acpi_id = value;
} else {
/* Declared with "Processor" statement; match ProcessorID */
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
return -ENODEV;
}
/*
* TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
* >>> 'acpi_get_processor_id(acpi_id, &id)' in
* arch/xxx/acpi.c
*/
pr->acpi_id = object.processor.proc_id;
}
cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id);
@ -649,7 +649,16 @@ static int acpi_processor_get_info(struct acpi_device *device)
return -ENODEV;
}
}
/*
* On some boxes several processors use the same processor bus id.
* But they are located in different scope. For example:
* \_SB.SCK0.CPU0
* \_SB.SCK1.CPU0
* Rename the processor device bus id. And the new bus id will be
* generated as the following format:
* CPU+CPU ID.
*/
sprintf(acpi_device_bid(device), "CPU%X", pr->id);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
pr->acpi_id));
@ -731,6 +740,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
/* _PDC call should be done before doing anything else (if reqd.). */
arch_acpi_processor_init_pdc(pr);
acpi_processor_set_pdc(pr);
arch_acpi_processor_cleanup_pdc(pr);
#ifdef CONFIG_CPU_FREQ
acpi_processor_ppc_has_changed(pr);
#endif

47
drivers/acpi/processor_idle.c
View File

@ -139,7 +139,7 @@ static void acpi_safe_halt(void)
* are affected too. We pick the most conservative approach: we assume
* that the local APIC stops in both C2 and C3.
*/
static void acpi_timer_check_state(int state, struct acpi_processor *pr,
static void lapic_timer_check_state(int state, struct acpi_processor *pr,
struct acpi_processor_cx *cx)
{
struct acpi_processor_power *pwr = &pr->power;
@ -162,7 +162,7 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
pr->power.timer_broadcast_on_state = state;
}
static void acpi_propagate_timer_broadcast(struct acpi_processor *pr)
static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
{
unsigned long reason;
@ -173,7 +173,7 @@ static void acpi_propagate_timer_broadcast(struct acpi_processor *pr)
}
/* Power(C) State timer broadcast control */
static void acpi_state_timer_broadcast(struct acpi_processor *pr,
static void lapic_timer_state_broadcast(struct acpi_processor *pr,
struct acpi_processor_cx *cx,
int broadcast)
{
@ -190,10 +190,10 @@ static void acpi_state_timer_broadcast(struct acpi_processor *pr,
#else
static void acpi_timer_check_state(int state, struct acpi_processor *pr,
static void lapic_timer_check_state(int state, struct acpi_processor *pr,
struct acpi_processor_cx *cstate) { }
static void acpi_propagate_timer_broadcast(struct acpi_processor *pr) { }
static void acpi_state_timer_broadcast(struct acpi_processor *pr,
static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) { }
static void lapic_timer_state_broadcast(struct acpi_processor *pr,
struct acpi_processor_cx *cx,
int broadcast)
{
@ -515,7 +515,8 @@ static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
struct acpi_processor_cx *cx)
{
static int bm_check_flag;
static int bm_check_flag = -1;
static int bm_control_flag = -1;
if (!cx->address)
@ -545,12 +546,14 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
}
/* All the logic here assumes flags.bm_check is same across all CPUs */
if (!bm_check_flag) {
if (bm_check_flag == -1) {
/* Determine whether bm_check is needed based on CPU */
acpi_processor_power_init_bm_check(&(pr->flags), pr->id);
bm_check_flag = pr->flags.bm_check;
bm_control_flag = pr->flags.bm_control;
} else {
pr->flags.bm_check = bm_check_flag;
pr->flags.bm_control = bm_control_flag;
}
if (pr->flags.bm_check) {
@ -614,29 +617,25 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
switch (cx->type) {
case ACPI_STATE_C1:
cx->valid = 1;
acpi_timer_check_state(i, pr, cx);
break;
case ACPI_STATE_C2:
acpi_processor_power_verify_c2(cx);
if (cx->valid)
acpi_timer_check_state(i, pr, cx);
break;
case ACPI_STATE_C3:
acpi_processor_power_verify_c3(pr, cx);
if (cx->valid)
acpi_timer_check_state(i, pr, cx);
break;
}
if (cx->valid)
tsc_check_state(cx->type);
if (!cx->valid)
continue;
if (cx->valid)
working++;
lapic_timer_check_state(i, pr, cx);
tsc_check_state(cx->type);
working++;
}
acpi_propagate_timer_broadcast(pr);
lapic_timer_propagate_broadcast(pr);
return (working);
}
@ -839,7 +838,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
return 0;
}
acpi_state_timer_broadcast(pr, cx, 1);
lapic_timer_state_broadcast(pr, cx, 1);
kt1 = ktime_get_real();
acpi_idle_do_entry(cx);
kt2 = ktime_get_real();
@ -847,7 +846,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
local_irq_enable();
cx->usage++;
acpi_state_timer_broadcast(pr, cx, 0);
lapic_timer_state_broadcast(pr, cx, 0);
return idle_time;
}
@ -892,7 +891,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
* Must be done before busmaster disable as we might need to
* access HPET !
*/
acpi_state_timer_broadcast(pr, cx, 1);
lapic_timer_state_broadcast(pr, cx, 1);
if (cx->type == ACPI_STATE_C3)
ACPI_FLUSH_CPU_CACHE();
@ -914,7 +913,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
cx->usage++;
acpi_state_timer_broadcast(pr, cx, 0);
lapic_timer_state_broadcast(pr, cx, 0);
cx->time += sleep_ticks;
return idle_time;
}
@ -981,7 +980,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
* Must be done before busmaster disable as we might need to
* access HPET !
*/
acpi_state_timer_broadcast(pr, cx, 1);
lapic_timer_state_broadcast(pr, cx, 1);
kt1 = ktime_get_real();
/*
@ -1026,7 +1025,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
cx->usage++;
acpi_state_timer_broadcast(pr, cx, 0);
lapic_timer_state_broadcast(pr, cx, 0);
cx->time += sleep_ticks;
return idle_time;
}

69
drivers/acpi/scan.c
View File

@ -95,7 +95,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
}
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
static int acpi_bus_hot_remove_device(void *context)
static void acpi_bus_hot_remove_device(void *context)
{
struct acpi_device *device;
acpi_handle handle = context;
@ -104,10 +104,10 @@ static int acpi_bus_hot_remove_device(void *context)
acpi_status status = AE_OK;
if (acpi_bus_get_device(handle, &device))
return 0;
return;
if (!device)
return 0;
return;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Hot-removing device %s...\n", dev_name(&device->dev)));
@ -115,7 +115,7 @@ static int acpi_bus_hot_remove_device(void *context)
if (acpi_bus_trim(device, 1)) {
printk(KERN_ERR PREFIX
"Removing device failed\n");
return -1;
return;
}
/* power off device */
@ -142,9 +142,10 @@ static int acpi_bus_hot_remove_device(void *context)
*/
status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
if (ACPI_FAILURE(status))
return -ENODEV;
printk(KERN_WARNING PREFIX
"Eject device failed\n");
return 0;
return;
}
static ssize_t
@ -155,7 +156,6 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
acpi_status status;
acpi_object_type type = 0;
struct acpi_device *acpi_device = to_acpi_device(d);
struct task_struct *task;
if ((!count) || (buf[0] != '1')) {
return -EINVAL;
@ -172,11 +172,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
goto err;
}
/* remove the device in another thread to fix the deadlock issue */
task = kthread_run(acpi_bus_hot_remove_device,
acpi_device->handle, "acpi_hot_remove_device");
if (IS_ERR(task))
ret = PTR_ERR(task);
acpi_os_hotplug_execute(acpi_bus_hot_remove_device, acpi_device->handle);
err:
return ret;
}
@ -198,12 +194,12 @@ acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *b
int result;
result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
if(result)
if (result)
goto end;
result = sprintf(buf, "%s\n", (char*)path.pointer);
kfree(path.pointer);
end:
end:
return result;
}
static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
@ -217,21 +213,21 @@ static int acpi_device_setup_files(struct acpi_device *dev)
/*
* Devices gotten from FADT don't have a "path" attribute
*/
if(dev->handle) {
if (dev->handle) {
result = device_create_file(&dev->dev, &dev_attr_path);
if(result)
if (result)
goto end;
}
if(dev->flags.hardware_id) {
if (dev->flags.hardware_id) {
result = device_create_file(&dev->dev, &dev_attr_hid);
if(result)
if (result)
goto end;
}
if (dev->flags.hardware_id || dev->flags.compatible_ids){
if (dev->flags.hardware_id || dev->flags.compatible_ids) {
result = device_create_file(&dev->dev, &dev_attr_modalias);
if(result)
if (result)
goto end;
}
@ -242,7 +238,7 @@ static int acpi_device_setup_files(struct acpi_device *dev)
status = acpi_get_handle(dev->handle, "_EJ0", &temp);
if (ACPI_SUCCESS(status))
result = device_create_file(&dev->dev, &dev_attr_eject);
end:
end:
return result;
}
@ -262,9 +258,9 @@ static void acpi_device_remove_files(struct acpi_device *dev)
if (dev->flags.hardware_id || dev->flags.compatible_ids)
device_remove_file(&dev->dev, &dev_attr_modalias);
if(dev->flags.hardware_id)
if (dev->flags.hardware_id)
device_remove_file(&dev->dev, &dev_attr_hid);
if(dev->handle)
if (dev->handle)
device_remove_file(&dev->dev, &dev_attr_path);
}
/* --------------------------------------------------------------------------
@ -512,7 +508,7 @@ static int acpi_device_register(struct acpi_device *device,
break;
}
}
if(!found) {
if (!found) {
acpi_device_bus_id = new_bus_id;
strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "device");
acpi_device_bus_id->instance_no = 0;
@ -530,22 +526,21 @@ static int acpi_device_register(struct acpi_device *device,
if (device->parent)
device->dev.parent = &parent->dev;
device->dev.bus = &acpi_bus_type;
device_initialize(&device->dev);
device->dev.release = &acpi_device_release;
result = device_add(&device->dev);
if(result) {
dev_err(&device->dev, "Error adding device\n");
result = device_register(&device->dev);
if (result) {
dev_err(&device->dev, "Error registering device\n");
goto end;
}
result = acpi_device_setup_files(device);
if(result)
if (result)
printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n",
dev_name(&device->dev));
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
end:
end:
mutex_lock(&acpi_device_lock);
if (device->parent)
list_del(&device->node);
@ -577,7 +572,7 @@ static void acpi_device_unregister(struct acpi_device *device, int type)
* @device: the device to add and initialize
* @driver: driver for the device
*
* Used to initialize a device via its device driver. Called whenever a
* Used to initialize a device via its device driver. Called whenever a
* driver is bound to a device. Invokes the driver's add() ops.
*/
static int
@ -585,7 +580,6 @@ acpi_bus_driver_init(struct acpi_device *device, struct acpi_driver *driver)
{
int result = 0;
if (!device || !driver)
return -EINVAL;
@ -802,7 +796,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
if (!acpi_match_device_ids(device, button_device_ids))
device->wakeup.flags.run_wake = 1;
end:
end:
if (ACPI_FAILURE(status))
device->flags.wake_capable = 0;
return 0;
@ -1070,7 +1064,7 @@ static void acpi_device_set_id(struct acpi_device *device,
break;
}
/*
/*
* \_SB
* ----
* Fix for the system root bus device -- the only root-level device.
@ -1320,7 +1314,7 @@ acpi_add_single_object(struct acpi_device **child,
device->parent->ops.bind(device);
}
end:
end:
if (!result)
*child = device;
else {
@ -1464,7 +1458,6 @@ acpi_bus_add(struct acpi_device **child,
return result;
}
EXPORT_SYMBOL(acpi_bus_add);
int acpi_bus_start(struct acpi_device *device)
@ -1484,7 +1477,6 @@ int acpi_bus_start(struct acpi_device *device)
}
return result;
}
EXPORT_SYMBOL(acpi_bus_start);
int acpi_bus_trim(struct acpi_device *start, int rmdevice)
@ -1542,7 +1534,6 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice)
}
EXPORT_SYMBOL_GPL(acpi_bus_trim);
static int acpi_bus_scan_fixed(struct acpi_device *root)
{
int result = 0;
@ -1610,6 +1601,6 @@ int __init acpi_scan_init(void)
if (result)
acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
Done:
Done:
return result;
}

61
drivers/acpi/video.c
View File

@ -76,6 +76,7 @@ MODULE_LICENSE("GPL");
static int brightness_switch_enabled = 1;
module_param(brightness_switch_enabled, bool, 0644);
static int register_count = 0;
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device, int type);
static int acpi_video_resume(struct acpi_device *device);
@ -586,6 +587,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
},
},
{
.callback = video_set_bqc_offset,
.ident = "Acer Aspire 7720",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"),
},
},
{}
};
@ -976,6 +985,11 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
device->backlight->props.max_brightness = device->brightness->count-3;
kfree(name);
result = sysfs_create_link(&device->backlight->dev.kobj,
&device->dev->dev.kobj, "device");
if (result)
printk(KERN_ERR PREFIX "Create sysfs link\n");
device->cdev = thermal_cooling_device_register("LCD",
device->dev, &video_cooling_ops);
if (IS_ERR(device->cdev))
@ -1054,15 +1068,15 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
static int acpi_video_bus_check(struct acpi_video_bus *video)
{
acpi_status status = -ENOENT;
struct device *dev;
struct pci_dev *dev;
if (!video)
return -EINVAL;
dev = acpi_get_physical_pci_device(video->device->handle);
dev = acpi_get_pci_dev(video->device->handle);
if (!dev)
return -ENODEV;
put_device(dev);
pci_dev_put(dev);
/* Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
@ -1990,6 +2004,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
status = acpi_remove_notify_handler(device->dev->handle,
ACPI_DEVICE_NOTIFY,
acpi_video_device_notify);
sysfs_remove_link(&device->backlight->dev.kobj, "device");
backlight_device_unregister(device->backlight);
if (device->cdev) {
sysfs_remove_link(&device->dev->dev.kobj,
@ -2318,6 +2333,13 @@ static int __init intel_opregion_present(void)
int acpi_video_register(void)
{
int result = 0;
if (register_count) {
/*
* if the function of acpi_video_register is already called,
* don't register the acpi_vide_bus again and return no error.
*/
return 0;
}
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
@ -2329,10 +2351,35 @@ int acpi_video_register(void)
return -ENODEV;
}
/*
* When the acpi_video_bus is loaded successfully, increase
* the counter reference.
*/
register_count = 1;
return 0;
}
EXPORT_SYMBOL(acpi_video_register);
void acpi_video_unregister(void)
{
if (!register_count) {
/*
* If the acpi video bus is already unloaded, don't
* unload it again and return directly.
*/
return;
}
acpi_bus_unregister_driver(&acpi_video_bus);
remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir);
register_count = 0;
return;
}
EXPORT_SYMBOL(acpi_video_unregister);
/*
* This is kind of nasty. Hardware using Intel chipsets may require
* the video opregion code to be run first in order to initialise
@ -2350,16 +2397,12 @@ static int __init acpi_video_init(void)
return acpi_video_register();
}
void acpi_video_exit(void)
static void __exit acpi_video_exit(void)
{
acpi_bus_unregister_driver(&acpi_video_bus);
remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir);
acpi_video_unregister();
return;
}
EXPORT_SYMBOL(acpi_video_exit);
module_init(acpi_video_init);
module_exit(acpi_video_exit);

9
drivers/acpi/video_detect.c
View File

@ -10,7 +10,7 @@
* assinged
*
* After PCI devices are glued with ACPI devices
* acpi_get_physical_pci_device() can be called to identify ACPI graphics
* acpi_get_pci_dev() can be called to identify ACPI graphics
* devices for which a real graphics card is plugged in
*
* Now acpi_video_get_capabilities() can be called to check which
@ -36,6 +36,7 @@
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/pci.h>
ACPI_MODULE_NAME("video");
#define _COMPONENT ACPI_VIDEO_COMPONENT
@ -109,7 +110,7 @@ static acpi_status
find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
{
long *cap = context;
struct device *dev;
struct pci_dev *dev;
struct acpi_device *acpi_dev;
const struct acpi_device_id video_ids[] = {
@ -120,10 +121,10 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
if (!acpi_match_device_ids(acpi_dev, video_ids)) {
dev = acpi_get_physical_pci_device(handle);
dev = acpi_get_pci_dev(handle);
if (!dev)
return AE_OK;
put_device(dev);
pci_dev_put(dev);
*cap |= acpi_is_video_device(acpi_dev);
}
return AE_OK;

2
drivers/gpu/drm/i915/i915_opregion.c
View File

@ -419,7 +419,7 @@ void intel_opregion_free(struct drm_device *dev, int suspend)
return;
if (!suspend)
acpi_video_exit();
acpi_video_unregister();
opregion->acpi->drdy = 0;

40
drivers/pci/hotplug/acpi_pcihp.c
View File

@ -354,7 +354,7 @@ acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
status = acpi_run_hpp(handle, hpp);
if (ACPI_SUCCESS(status))
break;
if (acpi_root_bridge(handle))
if (acpi_is_root_bridge(handle))
break;
status = acpi_get_parent(handle, &phandle);
if (ACPI_FAILURE(status))
@ -428,7 +428,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
status = acpi_run_oshp(handle);
if (ACPI_SUCCESS(status))
goto got_one;
if (acpi_root_bridge(handle))
if (acpi_is_root_bridge(handle))
break;
chandle = handle;
status = acpi_get_parent(chandle, &handle);
@ -449,42 +449,6 @@ got_one:
}
EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware);
/* acpi_root_bridge - check to see if this acpi object is a root bridge
*
* @handle - the acpi object in question.
*/
int acpi_root_bridge(acpi_handle handle)
{
acpi_status status;
struct acpi_device_info *info;
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
int i;
status = acpi_get_object_info(handle, &buffer);
if (ACPI_SUCCESS(status)) {
info = buffer.pointer;
if ((info->valid & ACPI_VALID_HID) &&
!strcmp(PCI_ROOT_HID_STRING,
info->hardware_id.value)) {
kfree(buffer.pointer);
return 1;
}
if (info->valid & ACPI_VALID_CID) {
for (i=0; i < info->compatibility_id.count; i++) {
if (!strcmp(PCI_ROOT_HID_STRING,
info->compatibility_id.id[i].value)) {
kfree(buffer.pointer);
return 1;
}
}
}
kfree(buffer.pointer);
}
return 0;
}
EXPORT_SYMBOL_GPL(acpi_root_bridge);
static int is_ejectable(acpi_handle handle)
{
acpi_status status;

27
drivers/pci/hotplug/acpiphp_glue.c
View File

@ -678,18 +678,9 @@ static void remove_bridge(acpi_handle handle)
static struct pci_dev * get_apic_pci_info(acpi_handle handle)
{
struct acpi_pci_id id;
struct pci_bus *bus;
struct pci_dev *dev;
if (ACPI_FAILURE(acpi_get_pci_id(handle, &id)))
return NULL;
bus = pci_find_bus(id.segment, id.bus);
if (!bus)
return NULL;
dev = pci_get_slot(bus, PCI_DEVFN(id.device, id.function));
dev = acpi_get_pci_dev(handle);
if (!dev)
return NULL;
@ -1396,19 +1387,16 @@ static void acpiphp_sanitize_bus(struct pci_bus *bus)
/* Program resources in newly inserted bridge */
static int acpiphp_configure_bridge (acpi_handle handle)
{
struct acpi_pci_id pci_id;
struct pci_dev *dev;
struct pci_bus *bus;
if (ACPI_FAILURE(acpi_get_pci_id(handle, &pci_id))) {
dev = acpi_get_pci_dev(handle);
if (!dev) {
err("cannot get PCI domain and bus number for bridge\n");
return -EINVAL;
}
bus = pci_find_bus(pci_id.segment, pci_id.bus);
if (!bus) {
err("cannot find bus %d:%d\n",
pci_id.segment, pci_id.bus);
return -EINVAL;
}
bus = dev->bus;
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
@ -1416,6 +1404,7 @@ static int acpiphp_configure_bridge (acpi_handle handle)
acpiphp_set_hpp_values(handle, bus);
pci_enable_bridges(bus);
acpiphp_configure_ioapics(handle);
pci_dev_put(dev);
return 0;
}
@ -1631,7 +1620,7 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
{
int *count = (int *)context;
if (acpi_root_bridge(handle)) {
if (acpi_is_root_bridge(handle)) {
acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
handle_hotplug_event_bridge, NULL);
(*count)++;

17
drivers/platform/x86/Kconfig
View File

@ -34,6 +34,23 @@ config ACER_WMI
If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
here.
config ACERHDF
tristate "Acer Aspire One temperature and fan driver"
depends on THERMAL && THERMAL_HWMON && ACPI
---help---
This is a driver for Acer Aspire One netbooks. It allows to access
the temperature sensor and to control the fan.
After loading this driver the BIOS is still in control of the fan.
To let the kernel handle the fan, do:
echo -n enabled > /sys/class/thermal/thermal_zone0/mode
For more information about this driver see
<http://piie.net/files/acerhdf_README.txt>
If you have an Acer Aspire One netbook, say Y or M
here.
config ASUS_LAPTOP
tristate "Asus Laptop Extras (EXPERIMENTAL)"
depends on ACPI

1
drivers/platform/x86/Makefile
View File

@ -9,6 +9,7 @@ obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
obj-$(CONFIG_ACERHDF) += acerhdf.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o

602
drivers/platform/x86/acerhdf.c Normal file
View File

@ -0,0 +1,602 @@
/*
* acerhdf - A driver which monitors the temperature
* of the aspire one netbook, turns on/off the fan
* as soon as the upper/lower threshold is reached.
*
* (C) 2009 - Peter Feuerer peter (a) piie.net
* http://piie.net
* 2009 Borislav Petkov <petkovbb@gmail.com>
*
* Inspired by and many thanks to:
* o acerfand - Rachel Greenham
* o acer_ec.pl - Michael Kurz michi.kurz (at) googlemail.com
* - Petr Tomasek tomasek (#) etf,cuni,cz
* - Carlos Corbacho cathectic (at) gmail.com
* o lkml - Matthew Garrett
* - Borislav Petkov
* - Andreas Mohr
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define pr_fmt(fmt) "acerhdf: " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/dmi.h>
#include <acpi/acpi_drivers.h>
#include <linux/sched.h>
#include <linux/thermal.h>
#include <linux/platform_device.h>
/*
* The driver is started with "kernel mode off" by default. That means, the BIOS
* is still in control of the fan. In this mode the driver allows to read the
* temperature of the cpu and a userspace tool may take over control of the fan.
* If the driver is switched to "kernel mode" (e.g. via module parameter) the
* driver is in full control of the fan. If you want the module to be started in
* kernel mode by default, define the following:
*/
#undef START_IN_KERNEL_MODE
#define DRV_VER "0.5.13"
/*
* According to the Atom N270 datasheet,
* (http://download.intel.com/design/processor/datashts/320032.pdf) the
* CPU's optimal operating limits denoted in junction temperature as
* measured by the on-die thermal monitor are within 0 <= Tj <= 90. So,
* assume 89°C is critical temperature.
*/
#define ACERHDF_TEMP_CRIT 89
#define ACERHDF_FAN_OFF 0
#define ACERHDF_FAN_AUTO 1
/*
* No matter what value the user puts into the fanon variable, turn on the fan
* at 80 degree Celsius to prevent hardware damage
*/
#define ACERHDF_MAX_FANON 80
/*
* Maximum interval between two temperature checks is 15 seconds, as the die
* can get hot really fast under heavy load (plus we shouldn't forget about
* possible impact of _external_ aggressive sources such as heaters, sun etc.)
*/
#define ACERHDF_MAX_INTERVAL 15
#ifdef START_IN_KERNEL_MODE
static int kernelmode = 1;
#else
static int kernelmode;
#endif
static unsigned int interval = 10;
static unsigned int fanon = 63;
static unsigned int fanoff = 58;
static unsigned int verbose;
static unsigned int fanstate = ACERHDF_FAN_AUTO;
static char force_bios[16];
static unsigned int prev_interval;
struct thermal_zone_device *thz_dev;
struct thermal_cooling_device *cl_dev;
struct platform_device *acerhdf_dev;
module_param(kernelmode, uint, 0);
MODULE_PARM_DESC(kernelmode, "Kernel mode fan control on / off");
module_param(interval, uint, 0600);
MODULE_PARM_DESC(interval, "Polling interval of temperature check");
module_param(fanon, uint, 0600);
MODULE_PARM_DESC(fanon, "Turn the fan on above this temperature");
module_param(fanoff, uint, 0600);
MODULE_PARM_DESC(fanoff, "Turn the fan off below this temperature");
module_param(verbose, uint, 0600);
MODULE_PARM_DESC(verbose, "Enable verbose dmesg output");
module_param_string(force_bios, force_bios, 16, 0);
MODULE_PARM_DESC(force_bios, "Force BIOS version and omit BIOS check");
/* BIOS settings */
struct bios_settings_t {
const char *vendor;
const char *version;
unsigned char fanreg;
unsigned char tempreg;
unsigned char fancmd[2]; /* fan off and auto commands */
};
/* Register addresses and values for different BIOS versions */
static const struct bios_settings_t bios_tbl[] = {
{"Acer", "v0.3109", 0x55, 0x58, {0x1f, 0x00} },
{"Acer", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
{"Acer", "v0.3301", 0x55, 0x58, {0xaf, 0x00} },
{"Acer", "v0.3304", 0x55, 0x58, {0xaf, 0x00} },
{"Acer", "v0.3305", 0x55, 0x58, {0xaf, 0x00} },
{"Acer", "v0.3308", 0x55, 0x58, {0x21, 0x00} },
{"Acer", "v0.3309", 0x55, 0x58, {0x21, 0x00} },
{"Acer", "v0.3310", 0x55, 0x58, {0x21, 0x00} },
{"Gateway", "v0.3103", 0x55, 0x58, {0x21, 0x00} },
{"Packard Bell", "v0.3105", 0x55, 0x58, {0x21, 0x00} },
{"", "", 0, 0, {0, 0} }
};
static const struct bios_settings_t *bios_cfg __read_mostly;
static int acerhdf_get_temp(int *temp)
{
u8 read_temp;
if (ec_read(bios_cfg->tempreg, &read_temp))
return -EINVAL;
*temp = read_temp;
return 0;
}
static int acerhdf_get_fanstate(int *state)
{
u8 fan;
bool tmp;
if (ec_read(bios_cfg->fanreg, &fan))
return -EINVAL;
tmp = (fan == bios_cfg->fancmd[ACERHDF_FAN_OFF]);
*state = tmp ? ACERHDF_FAN_OFF : ACERHDF_FAN_AUTO;
return 0;
}
static void acerhdf_change_fanstate(int state)
{
unsigned char cmd;
if (verbose)
pr_notice("fan %s\n", (state == ACERHDF_FAN_OFF) ?
"OFF" : "ON");
if ((state != ACERHDF_FAN_OFF) && (state != ACERHDF_FAN_AUTO)) {
pr_err("invalid fan state %d requested, setting to auto!\n",
state);
state = ACERHDF_FAN_AUTO;
}
cmd = bios_cfg->fancmd[state];
fanstate = state;
ec_write(bios_cfg->fanreg, cmd);
}
static void acerhdf_check_param(struct thermal_zone_device *thermal)
{
if (fanon > ACERHDF_MAX_FANON) {
pr_err("fanon temperature too high, set to %d\n",
ACERHDF_MAX_FANON);
fanon = ACERHDF_MAX_FANON;
}
if (kernelmode && prev_interval != interval) {
if (interval > ACERHDF_MAX_INTERVAL) {
pr_err("interval too high, set to %d\n",
ACERHDF_MAX_INTERVAL);
interval = ACERHDF_MAX_INTERVAL;
}
if (verbose)
pr_notice("interval changed to: %d\n",
interval);
thermal->polling_delay = interval*1000;
prev_interval = interval;
}
}
/*
* This is the thermal zone callback which does the delayed polling of the fan
* state. We do check /sysfs-originating settings here in acerhdf_check_param()
* as late as the polling interval is since we can't do that in the respective
* accessors of the module parameters.
*/
static int acerhdf_get_ec_temp(struct thermal_zone_device *thermal,
unsigned long *t)
{
int temp, err = 0;
acerhdf_check_param(thermal);
err = acerhdf_get_temp(&temp);
if (err)
return err;
if (verbose)
pr_notice("temp %d\n", temp);
*t = temp;
return 0;
}
static int acerhdf_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
/* if the cooling device is the one from acerhdf bind it */
if (cdev != cl_dev)
return 0;
if (thermal_zone_bind_cooling_device(thermal, 0, cdev)) {
pr_err("error binding cooling dev\n");
return -EINVAL;
}
return 0;
}
static int acerhdf_unbind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
if (cdev != cl_dev)
return 0;
if (thermal_zone_unbind_cooling_device(thermal, 0, cdev)) {
pr_err("error unbinding cooling dev\n");
return -EINVAL;
}
return 0;
}
static inline void acerhdf_revert_to_bios_mode(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
kernelmode = 0;
if (thz_dev)
thz_dev->polling_delay = 0;
pr_notice("kernel mode fan control OFF\n");
}
static inline void acerhdf_enable_kernelmode(void)
{
kernelmode = 1;
thz_dev->polling_delay = interval*1000;
thermal_zone_device_update(thz_dev);
pr_notice("kernel mode fan control ON\n");
}
static int acerhdf_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
if (verbose)
pr_notice("kernel mode fan control %d\n", kernelmode);
*mode = (kernelmode) ? THERMAL_DEVICE_ENABLED
: THERMAL_DEVICE_DISABLED;
return 0;
}
/*
* set operation mode;
* enabled: the thermal layer of the kernel takes care about
* the temperature and the fan.
* disabled: the BIOS takes control of the fan.
*/
static int acerhdf_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
if (mode == THERMAL_DEVICE_DISABLED && kernelmode)
acerhdf_revert_to_bios_mode();
else if (mode == THERMAL_DEVICE_ENABLED && !kernelmode)
acerhdf_enable_kernelmode();
return 0;
}
static int acerhdf_get_trip_type(struct thermal_zone_device *thermal, int trip,
enum thermal_trip_type *type)
{
if (trip == 0)
*type = THERMAL_TRIP_ACTIVE;
return 0;
}
static int acerhdf_get_trip_temp(struct thermal_zone_device *thermal, int trip,
unsigned long *temp)
{
if (trip == 0)
*temp = fanon;
return 0;
}
static int acerhdf_get_crit_temp(struct thermal_zone_device *thermal,
unsigned long *temperature)
{
*temperature = ACERHDF_TEMP_CRIT;
return 0;
}
/* bind callback functions to thermalzone */
struct thermal_zone_device_ops acerhdf_dev_ops = {
.bind = acerhdf_bind,
.unbind = acerhdf_unbind,
.get_temp = acerhdf_get_ec_temp,
.get_mode = acerhdf_get_mode,
.set_mode = acerhdf_set_mode,
.get_trip_type = acerhdf_get_trip_type,
.get_trip_temp = acerhdf_get_trip_temp,
.get_crit_temp = acerhdf_get_crit_temp,
};
/*
* cooling device callback functions
* get maximal fan cooling state
*/
static int acerhdf_get_max_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
*state = 1;
return 0;
}
static int acerhdf_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
int err = 0, tmp;
err = acerhdf_get_fanstate(&tmp);
if (err)
return err;
*state = (tmp == ACERHDF_FAN_AUTO) ? 1 : 0;
return 0;
}
/* change current fan state - is overwritten when running in kernel mode */
static int acerhdf_set_cur_state(struct thermal_cooling_device *cdev,
unsigned long state)
{
int cur_temp, cur_state, err = 0;
if (!kernelmode)
return 0;
err = acerhdf_get_temp(&cur_temp);
if (err) {
pr_err("error reading temperature, hand off control to BIOS\n");
goto err_out;
}
err = acerhdf_get_fanstate(&cur_state);
if (err) {
pr_err("error reading fan state, hand off control to BIOS\n");
goto err_out;
}
if (state == 0) {
/* turn fan off only if below fanoff temperature */
if ((cur_state == ACERHDF_FAN_AUTO) &&
(cur_temp < fanoff))
acerhdf_change_fanstate(ACERHDF_FAN_OFF);
} else {
if (cur_state == ACERHDF_FAN_OFF)
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
}
return 0;
err_out:
acerhdf_revert_to_bios_mode();
return -EINVAL;
}
/* bind fan callbacks to fan device */
struct thermal_cooling_device_ops acerhdf_cooling_ops = {
.get_max_state = acerhdf_get_max_state,
.get_cur_state = acerhdf_get_cur_state,
.set_cur_state = acerhdf_set_cur_state,
};
/* suspend / resume functionality */
static int acerhdf_suspend(struct platform_device *dev, pm_message_t state)
{
if (kernelmode)
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
if (verbose)
pr_notice("going suspend\n");
return 0;
}
static int acerhdf_resume(struct platform_device *device)
{
if (verbose)
pr_notice("resuming\n");
return 0;
}
static int __devinit acerhdf_probe(struct platform_device *device)
{
return 0;
}
static int acerhdf_remove(struct platform_device *device)
{
return 0;
}
struct platform_driver acerhdf_drv = {
.driver = {
.name = "acerhdf",
.owner = THIS_MODULE,
},
.probe = acerhdf_probe,
.remove = acerhdf_remove,
.suspend = acerhdf_suspend,
.resume = acerhdf_resume,
};
/* check hardware */
static int acerhdf_check_hardware(void)
{
char const *vendor, *version, *product;
int i;
/* get BIOS data */
vendor = dmi_get_system_info(DMI_SYS_VENDOR);
version = dmi_get_system_info(DMI_BIOS_VERSION);
product = dmi_get_system_info(DMI_PRODUCT_NAME);
pr_info("Acer Aspire One Fan driver, v.%s\n", DRV_VER);
if (!force_bios[0]) {
if (strncmp(product, "AO", 2)) {
pr_err("no Aspire One hardware found\n");
return -EINVAL;
}
} else {
pr_info("forcing BIOS version: %s\n", version);
version = force_bios;
kernelmode = 0;
}
if (verbose)
pr_info("BIOS info: %s %s, product: %s\n",
vendor, version, product);
/* search BIOS version and vendor in BIOS settings table */
for (i = 0; bios_tbl[i].version[0]; i++) {
if (!strcmp(bios_tbl[i].vendor, vendor) &&
!strcmp(bios_tbl[i].version, version)) {
bios_cfg = &bios_tbl[i];
break;
}
}
if (!bios_cfg) {
pr_err("unknown (unsupported) BIOS version %s/%s, "
"please report, aborting!\n", vendor, version);
return -EINVAL;
}
/*
* if started with kernel mode off, prevent the kernel from switching
* off the fan
*/
if (!kernelmode) {
pr_notice("Fan control off, to enable do:\n");
pr_notice("echo -n \"enabled\" > "
"/sys/class/thermal/thermal_zone0/mode\n");
}
return 0;
}
static int acerhdf_register_platform(void)
{
int err = 0;
err = platform_driver_register(&acerhdf_drv);
if (err)
return err;
acerhdf_dev = platform_device_alloc("acerhdf", -1);
platform_device_add(acerhdf_dev);
return 0;
}
static void acerhdf_unregister_platform(void)
{
if (!acerhdf_dev)
return;
platform_device_del(acerhdf_dev);
platform_driver_unregister(&acerhdf_drv);
}
static int acerhdf_register_thermal(void)
{
cl_dev = thermal_cooling_device_register("acerhdf-fan", NULL,
&acerhdf_cooling_ops);
if (IS_ERR(cl_dev))
return -EINVAL;
thz_dev = thermal_zone_device_register("acerhdf", 1, NULL,
&acerhdf_dev_ops, 0, 0, 0,
(kernelmode) ? interval*1000 : 0);
if (IS_ERR(thz_dev))
return -EINVAL;
return 0;
}
static void acerhdf_unregister_thermal(void)
{
if (cl_dev) {
thermal_cooling_device_unregister(cl_dev);
cl_dev = NULL;
}
if (thz_dev) {
thermal_zone_device_unregister(thz_dev);
thz_dev = NULL;
}
}
static int __init acerhdf_init(void)
{
int err = 0;
err = acerhdf_check_hardware();
if (err)
goto out_err;
err = acerhdf_register_platform();
if (err)
goto err_unreg;
err = acerhdf_register_thermal();
if (err)
goto err_unreg;
return 0;
err_unreg:
acerhdf_unregister_thermal();
acerhdf_unregister_platform();
out_err:
return -ENODEV;
}
static void __exit acerhdf_exit(void)
{
acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
acerhdf_unregister_thermal();
acerhdf_unregister_platform();
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Peter Feuerer");
MODULE_DESCRIPTION("Aspire One temperature and fan driver");
MODULE_ALIAS("dmi:*:*Acer*:*:");
MODULE_ALIAS("dmi:*:*Gateway*:*:");
MODULE_ALIAS("dmi:*:*Packard Bell*:*:");
module_init(acerhdf_init);
module_exit(acerhdf_exit);

56
drivers/platform/x86/dell-wmi.c
View File

@ -46,10 +46,53 @@ struct key_entry {
u16 keycode;
};
enum { KE_KEY, KE_SW, KE_END };
enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
/*
* Certain keys are flagged as KE_IGNORE. All of these are either
* notifications (rather than requests for change) or are also sent
* via the keyboard controller so should not be sent again.
*/
static struct key_entry dell_wmi_keymap[] = {
{KE_KEY, 0xe045, KEY_PROG1},
{KE_KEY, 0xe009, KEY_EJECTCD},
/* These also contain the brightness level at offset 6 */
{KE_KEY, 0xe006, KEY_BRIGHTNESSUP},
{KE_KEY, 0xe005, KEY_BRIGHTNESSDOWN},
/* Battery health status button */
{KE_KEY, 0xe007, KEY_BATTERY},
/* This is actually for all radios. Although physically a
* switch, the notification does not provide an indication of
* state and so it should be reported as a key */
{KE_KEY, 0xe008, KEY_WLAN},
/* The next device is at offset 6, the active devices are at
offset 8 and the attached devices at offset 10 */
{KE_KEY, 0xe00b, KEY_DISPLAYTOGGLE},
{KE_IGNORE, 0xe00c, KEY_KBDILLUMTOGGLE},
/* BIOS error detected */
{KE_IGNORE, 0xe00d, KEY_RESERVED},
/* Wifi Catcher */
{KE_KEY, 0xe011, KEY_PROG2},
/* Ambient light sensor toggle */
{KE_IGNORE, 0xe013, KEY_RESERVED},
{KE_IGNORE, 0xe020, KEY_MUTE},
{KE_IGNORE, 0xe02e, KEY_VOLUMEDOWN},
{KE_IGNORE, 0xe030, KEY_VOLUMEUP},
{KE_IGNORE, 0xe033, KEY_KBDILLUMUP},
{KE_IGNORE, 0xe034, KEY_KBDILLUMDOWN},
{KE_IGNORE, 0xe03a, KEY_CAPSLOCK},
{KE_IGNORE, 0xe045, KEY_NUMLOCK},
{KE_IGNORE, 0xe046, KEY_SCROLLLOCK},
{KE_END, 0}
};
@ -122,15 +165,20 @@ static void dell_wmi_notify(u32 value, void *context)
if (obj && obj->type == ACPI_TYPE_BUFFER) {
int *buffer = (int *)obj->buffer.pointer;
key = dell_wmi_get_entry_by_scancode(buffer[1]);
/*
* The upper bytes of the event may contain
* additional information, so mask them off for the
* scancode lookup
*/
key = dell_wmi_get_entry_by_scancode(buffer[1] & 0xFFFF);
if (key) {
input_report_key(dell_wmi_input_dev, key->keycode, 1);
input_sync(dell_wmi_input_dev);
input_report_key(dell_wmi_input_dev, key->keycode, 0);
input_sync(dell_wmi_input_dev);
} else
} else if (buffer[1] & 0xFFFF)
printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n",
buffer[1]);
buffer[1] & 0xFFFF);
}
}

87
drivers/platform/x86/hp-wmi.c
View File

@ -47,7 +47,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
#define HPWMI_DISPLAY_QUERY 0x1
#define HPWMI_HDDTEMP_QUERY 0x2
#define HPWMI_ALS_QUERY 0x3
#define HPWMI_DOCK_QUERY 0x4
#define HPWMI_HARDWARE_QUERY 0x4
#define HPWMI_WIRELESS_QUERY 0x5
#define HPWMI_HOTKEY_QUERY 0xc
@ -75,10 +75,9 @@ struct key_entry {
u16 keycode;
};
enum { KE_KEY, KE_SW, KE_END };
enum { KE_KEY, KE_END };
static struct key_entry hp_wmi_keymap[] = {
{KE_SW, 0x01, SW_DOCK},
{KE_KEY, 0x02, KEY_BRIGHTNESSUP},
{KE_KEY, 0x03, KEY_BRIGHTNESSDOWN},
{KE_KEY, 0x20e6, KEY_PROG1},
@ -151,7 +150,22 @@ static int hp_wmi_als_state(void)
static int hp_wmi_dock_state(void)
{
return hp_wmi_perform_query(HPWMI_DOCK_QUERY, 0, 0);
int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, 0);
if (ret < 0)
return ret;
return ret & 0x1;
}
static int hp_wmi_tablet_state(void)
{
int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, 0);
if (ret < 0)
return ret;
return (ret & 0x4) ? 1 : 0;
}
static int hp_wmi_set_block(void *data, bool blocked)
@ -232,6 +246,15 @@ static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%d\n", value);
}
static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
char *buf)
{
int value = hp_wmi_tablet_state();
if (value < 0)
return -EINVAL;
return sprintf(buf, "%d\n", value);
}
static ssize_t set_als(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
@ -244,6 +267,7 @@ static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
static struct key_entry *hp_wmi_get_entry_by_scancode(int code)
{
@ -326,13 +350,13 @@ static void hp_wmi_notify(u32 value, void *context)
key->keycode, 0);
input_sync(hp_wmi_input_dev);
break;
case KE_SW:
input_report_switch(hp_wmi_input_dev,
key->keycode,
hp_wmi_dock_state());
input_sync(hp_wmi_input_dev);
break;
}
} else if (eventcode == 0x1) {
input_report_switch(hp_wmi_input_dev, SW_DOCK,
hp_wmi_dock_state());
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
hp_wmi_tablet_state());
input_sync(hp_wmi_input_dev);
} else if (eventcode == 0x5) {
if (wifi_rfkill)
rfkill_set_sw_state(wifi_rfkill,
@ -369,18 +393,19 @@ static int __init hp_wmi_input_setup(void)
set_bit(EV_KEY, hp_wmi_input_dev->evbit);
set_bit(key->keycode, hp_wmi_input_dev->keybit);
break;
case KE_SW:
set_bit(EV_SW, hp_wmi_input_dev->evbit);
set_bit(key->keycode, hp_wmi_input_dev->swbit);
/* Set initial dock state */
input_report_switch(hp_wmi_input_dev, key->keycode,
hp_wmi_dock_state());
input_sync(hp_wmi_input_dev);
break;
}
}
set_bit(EV_SW, hp_wmi_input_dev->evbit);
set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
/* Set initial hardware state */
input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
hp_wmi_tablet_state());
input_sync(hp_wmi_input_dev);
err = input_register_device(hp_wmi_input_dev);
if (err) {
@ -397,6 +422,7 @@ static void cleanup_sysfs(struct platform_device *device)
device_remove_file(&device->dev, &dev_attr_hddtemp);
device_remove_file(&device->dev, &dev_attr_als);
device_remove_file(&device->dev, &dev_attr_dock);
device_remove_file(&device->dev, &dev_attr_tablet);
}
static int __init hp_wmi_bios_setup(struct platform_device *device)
@ -414,6 +440,9 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
if (err)
goto add_sysfs_error;
err = device_create_file(&device->dev, &dev_attr_dock);
if (err)
goto add_sysfs_error;
err = device_create_file(&device->dev, &dev_attr_tablet);
if (err)
goto add_sysfs_error;
@ -485,23 +514,17 @@ static int __exit hp_wmi_bios_remove(struct platform_device *device)
static int hp_wmi_resume_handler(struct platform_device *device)
{
struct key_entry *key;
/*
* Docking state may have changed while suspended, so trigger
* an input event for the current state. As this is a switch,
* Hardware state may have changed while suspended, so trigger
* input events for the current state. As this is a switch,
* the input layer will only actually pass it on if the state
* changed.
*/
for (key = hp_wmi_keymap; key->type != KE_END; key++) {
switch (key->type) {
case KE_SW:
input_report_switch(hp_wmi_input_dev, key->keycode,
hp_wmi_dock_state());
input_sync(hp_wmi_input_dev);
break;
}
}
input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
hp_wmi_tablet_state());
input_sync(hp_wmi_input_dev);
return 0;
}

411
drivers/platform/x86/thinkpad_acpi.c
View File

@ -22,7 +22,7 @@
*/
#define TPACPI_VERSION "0.23"
#define TPACPI_SYSFS_VERSION 0x020300
#define TPACPI_SYSFS_VERSION 0x020400
/*
* Changelog:
@ -257,6 +257,8 @@ static struct {
u32 wan:1;
u32 uwb:1;
u32 fan_ctrl_status_undef:1;
u32 second_fan:1;
u32 beep_needs_two_args:1;
u32 input_device_registered:1;
u32 platform_drv_registered:1;
u32 platform_drv_attrs_registered:1;
@ -277,8 +279,10 @@ struct thinkpad_id_data {
char *bios_version_str; /* Something like 1ZET51WW (1.03z) */
char *ec_version_str; /* Something like 1ZHT51WW-1.04a */
u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */
u16 bios_model; /* 1Y = 0x5931, 0 = unknown */
u16 ec_model;
u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */
u16 ec_release;
char *model_str; /* ThinkPad T43 */
char *nummodel_str; /* 9384A9C for a 9384-A9C model */
@ -355,6 +359,73 @@ static void tpacpi_log_usertask(const char * const what)
} \
} while (0)
/*
* Quirk handling helpers
*
* ThinkPad IDs and versions seen in the field so far
* are two-characters from the set [0-9A-Z], i.e. base 36.
*
* We use values well outside that range as specials.
*/
#define TPACPI_MATCH_ANY 0xffffU
#define TPACPI_MATCH_UNKNOWN 0U
/* TPID('1', 'Y') == 0x5931 */
#define TPID(__c1, __c2) (((__c2) << 8) | (__c1))
#define TPACPI_Q_IBM(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_IBM, \
.bios = TPID(__id1, __id2), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_Q_LNV(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPID(__id1, __id2), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
struct tpacpi_quirk {
unsigned int vendor;
u16 bios;
u16 ec;
unsigned long quirks;
};
/**
* tpacpi_check_quirks() - search BIOS/EC version on a list
* @qlist: array of &struct tpacpi_quirk
* @qlist_size: number of elements in @qlist
*
* Iterates over a quirks list until one is found that matches the
* ThinkPad's vendor, BIOS and EC model.
*
* Returns 0 if nothing matches, otherwise returns the quirks field of
* the matching &struct tpacpi_quirk entry.
*
* The match criteria is: vendor, ec and bios much match.
*/
static unsigned long __init tpacpi_check_quirks(
const struct tpacpi_quirk *qlist,
unsigned int qlist_size)
{
while (qlist_size) {
if ((qlist->vendor == thinkpad_id.vendor ||
qlist->vendor == TPACPI_MATCH_ANY) &&
(qlist->bios == thinkpad_id.bios_model ||
qlist->bios == TPACPI_MATCH_ANY) &&
(qlist->ec == thinkpad_id.ec_model ||
qlist->ec == TPACPI_MATCH_ANY))
return qlist->quirks;
qlist_size--;
qlist++;
}
return 0;
}
/****************************************************************************
****************************************************************************
*
@ -2880,7 +2951,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
/* update bright_acpimode... */
tpacpi_check_std_acpi_brightness_support();
if (tp_features.bright_acpimode) {
if (tp_features.bright_acpimode && acpi_video_backlight_support()) {
printk(TPACPI_INFO
"This ThinkPad has standard ACPI backlight "
"brightness control, supported by the ACPI "
@ -4773,7 +4844,7 @@ TPACPI_HANDLE(led, ec, "SLED", /* 570 */
"LED", /* all others */
); /* R30, R31 */
#define TPACPI_LED_NUMLEDS 8
#define TPACPI_LED_NUMLEDS 16
static struct tpacpi_led_classdev *tpacpi_leds;
static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS];
static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
@ -4786,15 +4857,20 @@ static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
"tpacpi::dock_batt",
"tpacpi::unknown_led",
"tpacpi::standby",
"tpacpi::dock_status1",
"tpacpi::dock_status2",
"tpacpi::unknown_led2",
"tpacpi::unknown_led3",
"tpacpi::thinkvantage",
};
#define TPACPI_SAFE_LEDS 0x0081U
#define TPACPI_SAFE_LEDS 0x1081U
static inline bool tpacpi_is_led_restricted(const unsigned int led)
{
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
return false;
#else
return (TPACPI_SAFE_LEDS & (1 << led)) == 0;
return (1U & (TPACPI_SAFE_LEDS >> led)) == 0;
#endif
}
@ -4956,6 +5032,10 @@ static int __init tpacpi_init_led(unsigned int led)
tpacpi_leds[led].led = led;
/* LEDs with no name don't get registered */
if (!tpacpi_led_names[led])
return 0;
tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set;
tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set;
if (led_supported == TPACPI_LED_570)
@ -4974,10 +5054,59 @@ static int __init tpacpi_init_led(unsigned int led)
return rc;
}
static const struct tpacpi_quirk led_useful_qtable[] __initconst = {
TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */
TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */
TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */
TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */
TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */
TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */
TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */
TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */
TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */
TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */
TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */
TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */
TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */
TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */
TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */
TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */
TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */
TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */
TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */
TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */
/* (1) - may have excess leds enabled on MSB */
/* Defaults (order matters, keep last, don't reorder!) */
{ /* Lenovo */
.vendor = PCI_VENDOR_ID_LENOVO,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = 0x1fffU,
},
{ /* IBM ThinkPads with no EC version string */
.vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN,
.quirks = 0x00ffU,
},
{ /* IBM ThinkPads with EC version string */
.vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = 0x00bfU,
},
};
#undef TPACPI_LEDQ_IBM
#undef TPACPI_LEDQ_LNV
static int __init led_init(struct ibm_init_struct *iibm)
{
unsigned int i;
int rc;
unsigned long useful_leds;
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
@ -4999,6 +5128,9 @@ static int __init led_init(struct ibm_init_struct *iibm)
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
str_supported(led_supported), led_supported);
if (led_supported == TPACPI_LED_NONE)
return 1;
tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS,
GFP_KERNEL);
if (!tpacpi_leds) {
@ -5006,8 +5138,12 @@ static int __init led_init(struct ibm_init_struct *iibm)
return -ENOMEM;
}
useful_leds = tpacpi_check_quirks(led_useful_qtable,
ARRAY_SIZE(led_useful_qtable));
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
if (!tpacpi_is_led_restricted(i)) {
if (!tpacpi_is_led_restricted(i) &&
test_bit(i, &useful_leds)) {
rc = tpacpi_init_led(i);
if (rc < 0) {
led_exit();
@ -5017,12 +5153,11 @@ static int __init led_init(struct ibm_init_struct *iibm)
}
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
if (led_supported != TPACPI_LED_NONE)
printk(TPACPI_NOTICE
"warning: userspace override of important "
"firmware LEDs is enabled\n");
printk(TPACPI_NOTICE
"warning: userspace override of important "
"firmware LEDs is enabled\n");
#endif
return (led_supported != TPACPI_LED_NONE)? 0 : 1;
return 0;
}
#define str_led_status(s) \
@ -5052,7 +5187,7 @@ static int led_read(char *p)
}
len += sprintf(p + len, "commands:\t"
"<led> on, <led> off, <led> blink (<led> is 0-7)\n");
"<led> on, <led> off, <led> blink (<led> is 0-15)\n");
return len;
}
@ -5067,7 +5202,7 @@ static int led_write(char *buf)
return -ENODEV;
while ((cmd = next_cmd(&buf))) {
if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7)
if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 15)
return -EINVAL;
if (strstr(cmd, "off")) {
@ -5101,8 +5236,17 @@ static struct ibm_struct led_driver_data = {
TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
#define TPACPI_BEEP_Q1 0x0001
static const struct tpacpi_quirk beep_quirk_table[] __initconst = {
TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */
TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */
};
static int __init beep_init(struct ibm_init_struct *iibm)
{
unsigned long quirks;
vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
TPACPI_ACPIHANDLE_INIT(beep);
@ -5110,6 +5254,11 @@ static int __init beep_init(struct ibm_init_struct *iibm)
vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
str_supported(beep_handle != NULL));
quirks = tpacpi_check_quirks(beep_quirk_table,
ARRAY_SIZE(beep_quirk_table));
tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1);
return (beep_handle)? 0 : 1;
}
@ -5141,8 +5290,15 @@ static int beep_write(char *buf)
/* beep_cmd set */
} else
return -EINVAL;
if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0))
return -EIO;
if (tp_features.beep_needs_two_args) {
if (!acpi_evalf(beep_handle, NULL, NULL, "vdd",
beep_cmd, 0))
return -EIO;
} else {
if (!acpi_evalf(beep_handle, NULL, NULL, "vd",
beep_cmd))
return -EIO;
}
}
return 0;
@ -5569,6 +5725,10 @@ static struct ibm_struct ecdump_driver_data = {
* Bit 3-0: backlight brightness level
*
* brightness_get_raw returns status data in the HBRV layout
*
* WARNING: The X61 has been verified to use HBRV for something else, so
* this should be used _only_ on IBM ThinkPads, and maybe with some careful
* testing on the very early *60 Lenovo models...
*/
enum {
@ -5869,6 +6029,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
brightness_mode);
}
/* Safety */
if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM &&
(brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM ||
brightness_mode == TPACPI_BRGHT_MODE_EC))
return -EINVAL;
if (tpacpi_brightness_get_raw(&b) < 0)
return 1;
@ -6161,6 +6327,21 @@ static struct ibm_struct volume_driver_data = {
* For firmware bugs, refer to:
* http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
* ThinkPad EC register 0x31 bit 0 (only on select models)
*
* When bit 0 of EC register 0x31 is zero, the tachometer registers
* show the speed of the main fan. When bit 0 of EC register 0x31
* is one, the tachometer registers show the speed of the auxiliary
* fan.
*
* Fan control seems to affect both fans, regardless of the state
* of this bit.
*
* So far, only the firmware for the X60/X61 non-tablet versions
* seem to support this (firmware TP-7M).
*
* TPACPI_FAN_WR_ACPI_FANS:
* ThinkPad X31, X40, X41. Not available in the X60.
*
@ -6187,6 +6368,8 @@ enum { /* Fan control constants */
fan_status_offset = 0x2f, /* EC register 0x2f */
fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM)
* 0x84 must be read before 0x85 */
fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M)
bit 0 selects which fan is active */
TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
@ -6249,30 +6432,18 @@ TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
* We assume 0x07 really means auto mode while this quirk is active,
* as this is far more likely than the ThinkPad being in level 7,
* which is only used by the firmware during thermal emergencies.
*
* Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52),
* TP-70 (T43, R52), which are known to be buggy.
*/
static void fan_quirk1_detect(void)
static void fan_quirk1_setup(void)
{
/* In some ThinkPads, neither the EC nor the ACPI
* DSDT initialize the HFSP register, and it ends up
* being initially set to 0x07 when it *could* be
* either 0x07 or 0x80.
*
* Enable for TP-1Y (T43), TP-78 (R51e),
* TP-76 (R52), TP-70 (T43, R52), which are known
* to be buggy. */
if (fan_control_initial_status == 0x07) {
switch (thinkpad_id.ec_model) {
case 0x5931: /* TP-1Y */
case 0x3837: /* TP-78 */
case 0x3637: /* TP-76 */
case 0x3037: /* TP-70 */
printk(TPACPI_NOTICE
"fan_init: initial fan status is unknown, "
"assuming it is in auto mode\n");
tp_features.fan_ctrl_status_undef = 1;
;;
}
printk(TPACPI_NOTICE
"fan_init: initial fan status is unknown, "
"assuming it is in auto mode\n");
tp_features.fan_ctrl_status_undef = 1;
}
}
@ -6292,6 +6463,38 @@ static void fan_quirk1_handle(u8 *fan_status)
}
}
/* Select main fan on X60/X61, NOOP on others */
static bool fan_select_fan1(void)
{
if (tp_features.second_fan) {
u8 val;
if (ec_read(fan_select_offset, &val) < 0)
return false;
val &= 0xFEU;
if (ec_write(fan_select_offset, val) < 0)
return false;
}
return true;
}
/* Select secondary fan on X60/X61 */
static bool fan_select_fan2(void)
{
u8 val;
if (!tp_features.second_fan)
return false;
if (ec_read(fan_select_offset, &val) < 0)
return false;
val |= 0x01U;
if (ec_write(fan_select_offset, val) < 0)
return false;
return true;
}
/*
* Call with fan_mutex held
*/
@ -6369,6 +6572,8 @@ static int fan_get_speed(unsigned int *speed)
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_TPEC:
/* all except 570, 600e/x, 770e, 770x */
if (unlikely(!fan_select_fan1()))
return -EIO;
if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
!acpi_ec_read(fan_rpm_offset + 1, &hi)))
return -EIO;
@ -6385,6 +6590,34 @@ static int fan_get_speed(unsigned int *speed)
return 0;
}
static int fan2_get_speed(unsigned int *speed)
{
u8 hi, lo;
bool rc;
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_TPEC:
/* all except 570, 600e/x, 770e, 770x */
if (unlikely(!fan_select_fan2()))
return -EIO;
rc = !acpi_ec_read(fan_rpm_offset, &lo) ||
!acpi_ec_read(fan_rpm_offset + 1, &hi);
fan_select_fan1(); /* play it safe */
if (rc)
return -EIO;
if (likely(speed))
*speed = (hi << 8) | lo;
break;
default:
return -ENXIO;
}
return 0;
}
static int fan_set_level(int level)
{
if (!fan_control_allowed)
@ -6790,6 +7023,25 @@ static struct device_attribute dev_attr_fan_fan1_input =
__ATTR(fan1_input, S_IRUGO,
fan_fan1_input_show, NULL);
/* sysfs fan fan2_input ------------------------------------------------ */
static ssize_t fan_fan2_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res;
unsigned int speed;
res = fan2_get_speed(&speed);
if (res < 0)
return res;
return snprintf(buf, PAGE_SIZE, "%u\n", speed);
}
static struct device_attribute dev_attr_fan_fan2_input =
__ATTR(fan2_input, S_IRUGO,
fan_fan2_input_show, NULL);
/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
char *buf)
@ -6823,6 +7075,7 @@ static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO,
static struct attribute *fan_attributes[] = {
&dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr,
&dev_attr_fan_fan1_input.attr,
NULL, /* for fan2_input */
NULL
};
@ -6830,9 +7083,36 @@ static const struct attribute_group fan_attr_group = {
.attrs = fan_attributes,
};
#define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */
#define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */
#define TPACPI_FAN_QI(__id1, __id2, __quirks) \
{ .vendor = PCI_VENDOR_ID_IBM, \
.bios = TPACPI_MATCH_ANY, \
.ec = TPID(__id1, __id2), \
.quirks = __quirks }
#define TPACPI_FAN_QL(__id1, __id2, __quirks) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPACPI_MATCH_ANY, \
.ec = TPID(__id1, __id2), \
.quirks = __quirks }
static const struct tpacpi_quirk fan_quirk_table[] __initconst = {
TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1),
TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1),
TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1),
TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1),
TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN),
};
#undef TPACPI_FAN_QL
#undef TPACPI_FAN_QI
static int __init fan_init(struct ibm_init_struct *iibm)
{
int rc;
unsigned long quirks;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"initializing fan subdriver\n");
@ -6843,12 +7123,16 @@ static int __init fan_init(struct ibm_init_struct *iibm)
fan_control_commands = 0;
fan_watchdog_maxinterval = 0;
tp_features.fan_ctrl_status_undef = 0;
tp_features.second_fan = 0;
fan_control_desired_level = 7;
TPACPI_ACPIHANDLE_INIT(fans);
TPACPI_ACPIHANDLE_INIT(gfan);
TPACPI_ACPIHANDLE_INIT(sfan);
quirks = tpacpi_check_quirks(fan_quirk_table,
ARRAY_SIZE(fan_quirk_table));
if (gfan_handle) {
/* 570, 600e/x, 770e, 770x */
fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
@ -6858,7 +7142,13 @@ static int __init fan_init(struct ibm_init_struct *iibm)
if (likely(acpi_ec_read(fan_status_offset,
&fan_control_initial_status))) {
fan_status_access_mode = TPACPI_FAN_RD_TPEC;
fan_quirk1_detect();
if (quirks & TPACPI_FAN_Q1)
fan_quirk1_setup();
if (quirks & TPACPI_FAN_2FAN) {
tp_features.second_fan = 1;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"secondary fan support enabled\n");
}
} else {
printk(TPACPI_ERR
"ThinkPad ACPI EC access misbehaving, "
@ -6914,6 +7204,11 @@ static int __init fan_init(struct ibm_init_struct *iibm)
if (fan_status_access_mode != TPACPI_FAN_NONE ||
fan_control_access_mode != TPACPI_FAN_WR_NONE) {
if (tp_features.second_fan) {
/* attach second fan tachometer */
fan_attributes[ARRAY_SIZE(fan_attributes)-2] =
&dev_attr_fan_fan2_input.attr;
}
rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
&fan_attr_group);
if (rc < 0)
@ -7385,6 +7680,24 @@ err_out:
/* Probing */
static bool __pure __init tpacpi_is_fw_digit(const char c)
{
return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z');
}
/* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */
static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
const char t)
{
return s && strlen(s) >= 8 &&
tpacpi_is_fw_digit(s[0]) &&
tpacpi_is_fw_digit(s[1]) &&
s[2] == t && s[3] == 'T' &&
tpacpi_is_fw_digit(s[4]) &&
tpacpi_is_fw_digit(s[5]) &&
s[6] == 'W' && s[7] == 'W';
}
/* returns 0 - probe ok, or < 0 - probe error.
* Probe ok doesn't mean thinkpad found.
* On error, kfree() cleanup on tp->* is not performed, caller must do it */
@ -7411,10 +7724,15 @@ static int __must_check __init get_thinkpad_model_data(
tp->bios_version_str = kstrdup(s, GFP_KERNEL);
if (s && !tp->bios_version_str)
return -ENOMEM;
if (!tp->bios_version_str)
/* Really ancient ThinkPad 240X will fail this, which is fine */
if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E'))
return 0;
tp->bios_model = tp->bios_version_str[0]
| (tp->bios_version_str[1] << 8);
tp->bios_release = (tp->bios_version_str[4] << 8)
| tp->bios_version_str[5];
/*
* ThinkPad T23 or newer, A31 or newer, R50e or newer,
@ -7433,8 +7751,21 @@ static int __must_check __init get_thinkpad_model_data(
tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL);
if (!tp->ec_version_str)
return -ENOMEM;
tp->ec_model = ec_fw_string[0]
| (ec_fw_string[1] << 8);
if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) {
tp->ec_model = ec_fw_string[0]
| (ec_fw_string[1] << 8);
tp->ec_release = (ec_fw_string[4] << 8)
| ec_fw_string[5];
} else {
printk(TPACPI_NOTICE
"ThinkPad firmware release %s "
"doesn't match the known patterns\n",
ec_fw_string);
printk(TPACPI_NOTICE
"please report this to %s\n",
TPACPI_MAIL);
}
break;
}
}

46
drivers/pnp/pnpacpi/rsparser.c
View File

@ -287,6 +287,25 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
ACPI_DECODE_16);
}
static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
struct acpi_resource *res)
{
struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
if (p->producer_consumer == ACPI_PRODUCER)
return;
if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(dev,
p->minimum, p->address_length,
p->info.mem.write_protect);
else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(dev,
p->minimum, p->address_length,
p->granularity == 0xfff ? ACPI_DECODE_10 :
ACPI_DECODE_16);
}
static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
void *data)
{
@ -400,8 +419,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
break;
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
return AE_OK;
pnpacpi_parse_allocated_ext_address_space(dev, res);
break;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
@ -630,6 +648,28 @@ static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
IORESOURCE_IO_FIXED);
}
static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
unsigned int option_flags,
struct acpi_resource *r)
{
struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
unsigned char flags = 0;
if (p->address_length == 0)
return;
if (p->resource_type == ACPI_MEMORY_RANGE) {
if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
flags = IORESOURCE_MEM_WRITEABLE;
pnp_register_mem_resource(dev, option_flags, p->minimum,
p->minimum, 0, p->address_length,
flags);
} else if (p->resource_type == ACPI_IO_RANGE)
pnp_register_port_resource(dev, option_flags, p->minimum,
p->minimum, 0, p->address_length,
IORESOURCE_IO_FIXED);
}
struct acpipnp_parse_option_s {
struct pnp_dev *dev;
unsigned int option_flags;
@ -711,6 +751,7 @@ static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
break;
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
pnpacpi_parse_ext_address_option(dev, option_flags, res);
break;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
@ -765,6 +806,7 @@ static int pnpacpi_supported_resource(struct acpi_resource *res)
case ACPI_RESOURCE_TYPE_ADDRESS16:
case ACPI_RESOURCE_TYPE_ADDRESS32:
case ACPI_RESOURCE_TYPE_ADDRESS64:
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
return 1;
}

4
include/acpi/acpi_bus.h
View File

@ -168,7 +168,7 @@ struct acpi_device_dir {
/* Plug and Play */
typedef char acpi_bus_id[5];
typedef char acpi_bus_id[8];
typedef unsigned long acpi_bus_address;
typedef char acpi_hardware_id[15];
typedef char acpi_unique_id[9];
@ -365,10 +365,10 @@ struct acpi_bus_type {
int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);
struct device *acpi_get_physical_pci_device(acpi_handle);
/* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
int acpi_is_root_bridge(acpi_handle);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))

13
include/acpi/acpi_drivers.h
View File

@ -57,8 +57,7 @@
*/
#define ACPI_POWER_HID "LNXPOWER"
#define ACPI_PROCESSOR_OBJECT_HID "ACPI_CPU"
#define ACPI_PROCESSOR_HID "ACPI0007"
#define ACPI_PROCESSOR_OBJECT_HID "LNXCPU"
#define ACPI_SYSTEM_HID "LNXSYSTM"
#define ACPI_THERMAL_HID "LNXTHERM"
#define ACPI_BUTTON_HID_POWERF "LNXPWRBN"
@ -91,17 +90,15 @@ int acpi_pci_link_free_irq(acpi_handle handle);
/* ACPI PCI Interrupt Routing (pci_irq.c) */
int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus);
void acpi_pci_irq_del_prt(int segment, int bus);
int acpi_pci_irq_add_prt(acpi_handle handle, struct pci_bus *bus);
void acpi_pci_irq_del_prt(struct pci_bus *bus);
/* ACPI PCI Device Binding (pci_bind.c) */
struct pci_bus;
acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id);
int acpi_pci_bind(struct acpi_device *device);
int acpi_pci_bind_root(struct acpi_device *device, struct acpi_pci_id *id,
struct pci_bus *bus);
struct pci_dev *acpi_get_pci_dev(acpi_handle);
int acpi_pci_bind_root(struct acpi_device *device);
/* Arch-defined function to add a bus to the system */

1
include/acpi/processor.h
View File

@ -258,6 +258,7 @@ DECLARE_PER_CPU(struct acpi_processor *, processors);
extern struct acpi_processor_errata errata;
void arch_acpi_processor_init_pdc(struct acpi_processor *pr);
void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr);
#ifdef ARCH_HAS_POWER_INIT
void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,

4
include/acpi/video.h
View File

@ -3,10 +3,10 @@
#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
extern int acpi_video_register(void);
extern int acpi_video_exit(void);
extern void acpi_video_unregister(void);
#else
static inline int acpi_video_register(void) { return 0; }
static inline void acpi_video_exit(void) { return; }
static inline void acpi_video_unregister(void) { return; }
#endif
#endif

6
include/linux/acpi.h
View File

@ -113,9 +113,6 @@ void acpi_irq_stats_init(void);
extern u32 acpi_irq_handled;
extern u32 acpi_irq_not_handled;
extern struct acpi_mcfg_allocation *pci_mmcfg_config;
extern int pci_mmcfg_config_num;
extern int sbf_port;
extern unsigned long acpi_realmode_flags;
@ -293,7 +290,10 @@ void __init acpi_s4_no_nvs(void);
OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags);
extern void acpi_early_init(void);
#else /* CONFIG_ACPI */
static inline void acpi_early_init(void) { }
static inline int early_acpi_boot_init(void)
{

1
include/linux/pci_hotplug.h
View File

@ -229,7 +229,6 @@ struct hotplug_params {
extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
struct hotplug_params *hpp);
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags);
int acpi_root_bridge(acpi_handle handle);
int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle);
int acpi_pci_detect_ejectable(struct pci_bus *pbus);
#endif

6
init/main.c
View File

@ -24,6 +24,7 @@
#include <linux/smp_lock.h>
#include <linux/initrd.h>
#include <linux/bootmem.h>
#include <linux/acpi.h>
#include <linux/tty.h>
#include <linux/gfp.h>
#include <linux/percpu.h>
@ -88,11 +89,6 @@ extern void sbus_init(void);
extern void prio_tree_init(void);
extern void radix_tree_init(void);
extern void free_initmem(void);
#ifdef CONFIG_ACPI
extern void acpi_early_init(void);
#else
static inline void acpi_early_init(void) { }
#endif
#ifndef CONFIG_DEBUG_RODATA
static inline void mark_rodata_ro(void) { }
#endif