mirror of
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Merge branches 'release' and 'wmi-2.6.25' into release
This commit is contained in:
Len Brown
commit
060195500e
19
MAINTAINERS
19
MAINTAINERS
@ -202,6 +202,13 @@ L: linux-scsi@vger.kernel.org
|
||||
W: http://www.adaptec.com/
|
||||
S: Supported
|
||||
|
||||
ACER WMI LAPTOP EXTRAS
|
||||
P: Carlos Corbacho
|
||||
M: carlos@strangeworlds.co.uk
|
||||
L: aceracpi@googlegroups.com (subscribers-only)
|
||||
W: http://code.google.com/p/aceracpi
|
||||
S: Maintained
|
||||
|
||||
ACPI
|
||||
P: Len Brown
|
||||
M: len.brown@intel.com
|
||||
@ -252,6 +259,13 @@ L: linux-acpi@vger.kernel.org
|
||||
W: http://acpi.sourceforge.net/
|
||||
S: Supported
|
||||
|
||||
ACPI WMI DRIVER
|
||||
P: Carlos Corbacho
|
||||
M: carlos@strangeworlds.co.uk
|
||||
L: linux-acpi@vger.kernel.org
|
||||
W: http://www.lesswatts.org/projects/acpi/
|
||||
S: Maintained
|
||||
|
||||
ADM1025 HARDWARE MONITOR DRIVER
|
||||
P: Jean Delvare
|
||||
M: khali@linux-fr.org
|
||||
@ -1785,6 +1799,11 @@ P: Jaroslav Kysela
|
||||
M: perex@perex.cz
|
||||
S: Maintained
|
||||
|
||||
HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
|
||||
P: Carlos Corbacho
|
||||
M: carlos@strangeworlds.co.uk
|
||||
S: Odd Fixes
|
||||
|
||||
HPET: High Precision Event Timers driver (hpet.c)
|
||||
P: Clemens Ladisch
|
||||
M: clemens@ladisch.de
|
||||
|
||||
@ -200,6 +200,16 @@ config ACPI_NUMA
|
||||
depends on (X86 || IA64)
|
||||
default y if IA64_GENERIC || IA64_SGI_SN2
|
||||
|
||||
config ACPI_WMI
|
||||
tristate "WMI (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL
|
||||
help
|
||||
This driver adds support for the ACPI-WMI mapper device (PNP0C14)
|
||||
found on some systems.
|
||||
|
||||
NOTE: You will need another driver or userspace application on top of
|
||||
this to actually use anything defined in the ACPI-WMI mapper.
|
||||
|
||||
config ACPI_ASUS
|
||||
tristate "ASUS/Medion Laptop Extras"
|
||||
depends on X86
|
||||
|
||||
@ -55,6 +55,7 @@ obj-$(CONFIG_ACPI_THERMAL) += thermal.o
|
||||
obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
|
||||
obj-$(CONFIG_ACPI_DEBUG) += debug.o
|
||||
obj-$(CONFIG_ACPI_NUMA) += numa.o
|
||||
obj-$(CONFIG_ACPI_WMI) += wmi.o
|
||||
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
|
||||
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
|
||||
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
|
||||
|
||||
710
drivers/acpi/wmi.c
Normal file
710
drivers/acpi/wmi.c
Normal file
@ -0,0 +1,710 @@
|
||||
/*
|
||||
* ACPI-WMI mapping driver
|
||||
*
|
||||
* Copyright (C) 2007-2008 Carlos Corbacho <carlos@strangeworlds.co.uk>
|
||||
*
|
||||
* GUID parsing code from ldm.c is:
|
||||
* Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
|
||||
* Copyright (c) 2001-2007 Anton Altaparmakov
|
||||
* Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <acpi/acpi_bus.h>
|
||||
#include <acpi/acpi_drivers.h>
|
||||
|
||||
ACPI_MODULE_NAME("wmi");
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||||
MODULE_AUTHOR("Carlos Corbacho");
|
||||
MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
#define ACPI_WMI_CLASS "wmi"
|
||||
|
||||
#undef PREFIX
|
||||
#define PREFIX "ACPI: WMI: "
|
||||
|
||||
static DEFINE_MUTEX(wmi_data_lock);
|
||||
|
||||
struct guid_block {
|
||||
char guid[16];
|
||||
union {
|
||||
char object_id[2];
|
||||
struct {
|
||||
unsigned char notify_id;
|
||||
unsigned char reserved;
|
||||
};
|
||||
};
|
||||
u8 instance_count;
|
||||
u8 flags;
|
||||
};
|
||||
|
||||
struct wmi_block {
|
||||
struct list_head list;
|
||||
struct guid_block gblock;
|
||||
acpi_handle handle;
|
||||
wmi_notify_handler handler;
|
||||
void *handler_data;
|
||||
};
|
||||
|
||||
static struct wmi_block wmi_blocks;
|
||||
|
||||
/*
|
||||
* If the GUID data block is marked as expensive, we must enable and
|
||||
* explicitily disable data collection.
|
||||
*/
|
||||
#define ACPI_WMI_EXPENSIVE 0x1
|
||||
#define ACPI_WMI_METHOD 0x2 /* GUID is a method */
|
||||
#define ACPI_WMI_STRING 0x4 /* GUID takes & returns a string */
|
||||
#define ACPI_WMI_EVENT 0x8 /* GUID is an event */
|
||||
|
||||
static int acpi_wmi_remove(struct acpi_device *device, int type);
|
||||
static int acpi_wmi_add(struct acpi_device *device);
|
||||
|
||||
static const struct acpi_device_id wmi_device_ids[] = {
|
||||
{"PNP0C14", 0},
|
||||
{"pnp0c14", 0},
|
||||
{"", 0},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, wmi_device_ids);
|
||||
|
||||
static struct acpi_driver acpi_wmi_driver = {
|
||||
.name = "wmi",
|
||||
.class = ACPI_WMI_CLASS,
|
||||
.ids = wmi_device_ids,
|
||||
.ops = {
|
||||
.add = acpi_wmi_add,
|
||||
.remove = acpi_wmi_remove,
|
||||
},
|
||||
};
|
||||
|
||||
/*
|
||||
* GUID parsing functions
|
||||
*/
|
||||
|
||||
/**
|
||||
* wmi_parse_hexbyte - Convert a ASCII hex number to a byte
|
||||
* @src: Pointer to at least 2 characters to convert.
|
||||
*
|
||||
* Convert a two character ASCII hex string to a number.
|
||||
*
|
||||
* Return: 0-255 Success, the byte was parsed correctly
|
||||
* -1 Error, an invalid character was supplied
|
||||
*/
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||||
static int wmi_parse_hexbyte(const u8 *src)
|
||||
{
|
||||
unsigned int x; /* For correct wrapping */
|
||||
int h;
|
||||
|
||||
/* high part */
|
||||
x = src[0];
|
||||
if (x - '0' <= '9' - '0') {
|
||||
h = x - '0';
|
||||
} else if (x - 'a' <= 'f' - 'a') {
|
||||
h = x - 'a' + 10;
|
||||
} else if (x - 'A' <= 'F' - 'A') {
|
||||
h = x - 'A' + 10;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
h <<= 4;
|
||||
|
||||
/* low part */
|
||||
x = src[1];
|
||||
if (x - '0' <= '9' - '0')
|
||||
return h | (x - '0');
|
||||
if (x - 'a' <= 'f' - 'a')
|
||||
return h | (x - 'a' + 10);
|
||||
if (x - 'A' <= 'F' - 'A')
|
||||
return h | (x - 'A' + 10);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* wmi_swap_bytes - Rearrange GUID bytes to match GUID binary
|
||||
* @src: Memory block holding binary GUID (16 bytes)
|
||||
* @dest: Memory block to hold byte swapped binary GUID (16 bytes)
|
||||
*
|
||||
* Byte swap a binary GUID to match it's real GUID value
|
||||
*/
|
||||
static void wmi_swap_bytes(u8 *src, u8 *dest)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i <= 3; i++)
|
||||
memcpy(dest + i, src + (3 - i), 1);
|
||||
|
||||
for (i = 0; i <= 1; i++)
|
||||
memcpy(dest + 4 + i, src + (5 - i), 1);
|
||||
|
||||
for (i = 0; i <= 1; i++)
|
||||
memcpy(dest + 6 + i, src + (7 - i), 1);
|
||||
|
||||
memcpy(dest + 8, src + 8, 8);
|
||||
}
|
||||
|
||||
/**
|
||||
* wmi_parse_guid - Convert GUID from ASCII to binary
|
||||
* @src: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
|
||||
* @dest: Memory block to hold binary GUID (16 bytes)
|
||||
*
|
||||
* N.B. The GUID need not be NULL terminated.
|
||||
*
|
||||
* Return: 'true' @dest contains binary GUID
|
||||
* 'false' @dest contents are undefined
|
||||
*/
|
||||
static bool wmi_parse_guid(const u8 *src, u8 *dest)
|
||||
{
|
||||
static const int size[] = { 4, 2, 2, 2, 6 };
|
||||
int i, j, v;
|
||||
|
||||
if (src[8] != '-' || src[13] != '-' ||
|
||||
src[18] != '-' || src[23] != '-')
|
||||
return false;
|
||||
|
||||
for (j = 0; j < 5; j++, src++) {
|
||||
for (i = 0; i < size[j]; i++, src += 2, *dest++ = v) {
|
||||
v = wmi_parse_hexbyte(src);
|
||||
if (v < 0)
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool find_guid(const char *guid_string, struct wmi_block **out)
|
||||
{
|
||||
char tmp[16], guid_input[16];
|
||||
struct wmi_block *wblock;
|
||||
struct guid_block *block;
|
||||
struct list_head *p;
|
||||
|
||||
wmi_parse_guid(guid_string, tmp);
|
||||
wmi_swap_bytes(tmp, guid_input);
|
||||
|
||||
list_for_each(p, &wmi_blocks.list) {
|
||||
wblock = list_entry(p, struct wmi_block, list);
|
||||
block = &wblock->gblock;
|
||||
|
||||
if (memcmp(block->guid, guid_input, 16) == 0) {
|
||||
if (out)
|
||||
*out = wblock;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Exported WMI functions
|
||||
*/
|
||||
/**
|
||||
* wmi_evaluate_method - Evaluate a WMI method
|
||||
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
|
||||
* @instance: Instance index
|
||||
* @method_id: Method ID to call
|
||||
* &in: Buffer containing input for the method call
|
||||
* &out: Empty buffer to return the method results
|
||||
*
|
||||
* Call an ACPI-WMI method
|
||||
*/
|
||||
acpi_status wmi_evaluate_method(const char *guid_string, u8 instance,
|
||||
u32 method_id, const struct acpi_buffer *in, struct acpi_buffer *out)
|
||||
{
|
||||
struct guid_block *block = NULL;
|
||||
struct wmi_block *wblock = NULL;
|
||||
acpi_handle handle;
|
||||
acpi_status status;
|
||||
struct acpi_object_list input;
|
||||
union acpi_object params[3];
|
||||
char method[4] = "WM";
|
||||
|
||||
if (!find_guid(guid_string, &wblock))
|
||||
return AE_BAD_ADDRESS;
|
||||
|
||||
block = &wblock->gblock;
|
||||
handle = wblock->handle;
|
||||
|
||||
if (!block->flags & ACPI_WMI_METHOD)
|
||||
return AE_BAD_DATA;
|
||||
|
||||
if (block->instance_count < instance)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
input.count = 2;
|
||||
input.pointer = params;
|
||||
params[0].type = ACPI_TYPE_INTEGER;
|
||||
params[0].integer.value = instance;
|
||||
params[1].type = ACPI_TYPE_INTEGER;
|
||||
params[1].integer.value = method_id;
|
||||
|
||||
if (in) {
|
||||
input.count = 3;
|
||||
|
||||
if (block->flags & ACPI_WMI_STRING) {
|
||||
params[2].type = ACPI_TYPE_STRING;
|
||||
} else {
|
||||
params[2].type = ACPI_TYPE_BUFFER;
|
||||
}
|
||||
params[2].buffer.length = in->length;
|
||||
params[2].buffer.pointer = in->pointer;
|
||||
}
|
||||
|
||||
strncat(method, block->object_id, 2);
|
||||
|
||||
status = acpi_evaluate_object(handle, method, &input, out);
|
||||
|
||||
return status;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_evaluate_method);
|
||||
|
||||
/**
|
||||
* wmi_query_block - Return contents of a WMI block
|
||||
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
|
||||
* @instance: Instance index
|
||||
* &out: Empty buffer to return the contents of the data block to
|
||||
*
|
||||
* Return the contents of an ACPI-WMI data block to a buffer
|
||||
*/
|
||||
acpi_status wmi_query_block(const char *guid_string, u8 instance,
|
||||
struct acpi_buffer *out)
|
||||
{
|
||||
struct guid_block *block = NULL;
|
||||
struct wmi_block *wblock = NULL;
|
||||
acpi_handle handle;
|
||||
acpi_status status, wc_status = AE_ERROR;
|
||||
struct acpi_object_list input, wc_input;
|
||||
union acpi_object wc_params[1], wq_params[1];
|
||||
char method[4];
|
||||
char wc_method[4] = "WC";
|
||||
|
||||
if (!guid_string || !out)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
if (!find_guid(guid_string, &wblock))
|
||||
return AE_BAD_ADDRESS;
|
||||
|
||||
block = &wblock->gblock;
|
||||
handle = wblock->handle;
|
||||
|
||||
if (block->instance_count < instance)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
/* Check GUID is a data block */
|
||||
if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
|
||||
return AE_BAD_ADDRESS;
|
||||
|
||||
input.count = 1;
|
||||
input.pointer = wq_params;
|
||||
wq_params[0].type = ACPI_TYPE_INTEGER;
|
||||
wq_params[0].integer.value = instance;
|
||||
|
||||
/*
|
||||
* If ACPI_WMI_EXPENSIVE, call the relevant WCxx method first to
|
||||
* enable collection.
|
||||
*/
|
||||
if (block->flags & ACPI_WMI_EXPENSIVE) {
|
||||
wc_input.count = 1;
|
||||
wc_input.pointer = wc_params;
|
||||
wc_params[0].type = ACPI_TYPE_INTEGER;
|
||||
wc_params[0].integer.value = 1;
|
||||
|
||||
strncat(wc_method, block->object_id, 2);
|
||||
|
||||
/*
|
||||
* Some GUIDs break the specification by declaring themselves
|
||||
* expensive, but have no corresponding WCxx method. So we
|
||||
* should not fail if this happens.
|
||||
*/
|
||||
wc_status = acpi_evaluate_object(handle, wc_method,
|
||||
&wc_input, NULL);
|
||||
}
|
||||
|
||||
strcpy(method, "WQ");
|
||||
strncat(method, block->object_id, 2);
|
||||
|
||||
status = acpi_evaluate_object(handle, method, NULL, out);
|
||||
|
||||
/*
|
||||
* If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if
|
||||
* the WQxx method failed - we should disable collection anyway.
|
||||
*/
|
||||
if ((block->flags & ACPI_WMI_EXPENSIVE) && wc_status) {
|
||||
wc_params[0].integer.value = 0;
|
||||
status = acpi_evaluate_object(handle,
|
||||
wc_method, &wc_input, NULL);
|
||||
}
|
||||
|
||||
return status;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_query_block);
|
||||
|
||||
/**
|
||||
* wmi_set_block - Write to a WMI block
|
||||
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
|
||||
* @instance: Instance index
|
||||
* &in: Buffer containing new values for the data block
|
||||
*
|
||||
* Write the contents of the input buffer to an ACPI-WMI data block
|
||||
*/
|
||||
acpi_status wmi_set_block(const char *guid_string, u8 instance,
|
||||
const struct acpi_buffer *in)
|
||||
{
|
||||
struct guid_block *block = NULL;
|
||||
struct wmi_block *wblock = NULL;
|
||||
acpi_handle handle;
|
||||
struct acpi_object_list input;
|
||||
union acpi_object params[2];
|
||||
char method[4] = "WS";
|
||||
|
||||
if (!guid_string || !in)
|
||||
return AE_BAD_DATA;
|
||||
|
||||
if (!find_guid(guid_string, &wblock))
|
||||
return AE_BAD_ADDRESS;
|
||||
|
||||
block = &wblock->gblock;
|
||||
handle = wblock->handle;
|
||||
|
||||
if (block->instance_count < instance)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
/* Check GUID is a data block */
|
||||
if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
|
||||
return AE_BAD_ADDRESS;
|
||||
|
||||
input.count = 2;
|
||||
input.pointer = params;
|
||||
params[0].type = ACPI_TYPE_INTEGER;
|
||||
params[0].integer.value = instance;
|
||||
|
||||
if (block->flags & ACPI_WMI_STRING) {
|
||||
params[1].type = ACPI_TYPE_STRING;
|
||||
} else {
|
||||
params[1].type = ACPI_TYPE_BUFFER;
|
||||
}
|
||||
params[1].buffer.length = in->length;
|
||||
params[1].buffer.pointer = in->pointer;
|
||||
|
||||
strncat(method, block->object_id, 2);
|
||||
|
||||
return acpi_evaluate_object(handle, method, &input, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_set_block);
|
||||
|
||||
/**
|
||||
* wmi_install_notify_handler - Register handler for WMI events
|
||||
* @handler: Function to handle notifications
|
||||
* @data: Data to be returned to handler when event is fired
|
||||
*
|
||||
* Register a handler for events sent to the ACPI-WMI mapper device.
|
||||
*/
|
||||
acpi_status wmi_install_notify_handler(const char *guid,
|
||||
wmi_notify_handler handler, void *data)
|
||||
{
|
||||
struct wmi_block *block;
|
||||
|
||||
if (!guid || !handler)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
find_guid(guid, &block);
|
||||
if (!block)
|
||||
return AE_NOT_EXIST;
|
||||
|
||||
if (block->handler)
|
||||
return AE_ALREADY_ACQUIRED;
|
||||
|
||||
block->handler = handler;
|
||||
block->handler_data = data;
|
||||
|
||||
return AE_OK;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_install_notify_handler);
|
||||
|
||||
/**
|
||||
* wmi_uninstall_notify_handler - Unregister handler for WMI events
|
||||
*
|
||||
* Unregister handler for events sent to the ACPI-WMI mapper device.
|
||||
*/
|
||||
acpi_status wmi_remove_notify_handler(const char *guid)
|
||||
{
|
||||
struct wmi_block *block;
|
||||
|
||||
if (!guid)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
find_guid(guid, &block);
|
||||
if (!block)
|
||||
return AE_NOT_EXIST;
|
||||
|
||||
if (!block->handler)
|
||||
return AE_NULL_ENTRY;
|
||||
|
||||
block->handler = NULL;
|
||||
block->handler_data = NULL;
|
||||
|
||||
return AE_OK;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);
|
||||
|
||||
/**
|
||||
* wmi_get_event_data - Get WMI data associated with an event
|
||||
*
|
||||
* @event - Event to find
|
||||
* &out - Buffer to hold event data
|
||||
*
|
||||
* Returns extra data associated with an event in WMI.
|
||||
*/
|
||||
acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out)
|
||||
{
|
||||
struct acpi_object_list input;
|
||||
union acpi_object params[1];
|
||||
struct guid_block *gblock;
|
||||
struct wmi_block *wblock;
|
||||
struct list_head *p;
|
||||
|
||||
input.count = 1;
|
||||
input.pointer = params;
|
||||
params[0].type = ACPI_TYPE_INTEGER;
|
||||
params[0].integer.value = event;
|
||||
|
||||
list_for_each(p, &wmi_blocks.list) {
|
||||
wblock = list_entry(p, struct wmi_block, list);
|
||||
gblock = &wblock->gblock;
|
||||
|
||||
if ((gblock->flags & ACPI_WMI_EVENT) &&
|
||||
(gblock->notify_id == event))
|
||||
return acpi_evaluate_object(wblock->handle, "_WED",
|
||||
&input, out);
|
||||
}
|
||||
|
||||
return AE_NOT_FOUND;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_get_event_data);
|
||||
|
||||
/**
|
||||
* wmi_has_guid - Check if a GUID is available
|
||||
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
|
||||
*
|
||||
* Check if a given GUID is defined by _WDG
|
||||
*/
|
||||
bool wmi_has_guid(const char *guid_string)
|
||||
{
|
||||
return find_guid(guid_string, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(wmi_has_guid);
|
||||
|
||||
/*
|
||||
* Parse the _WDG method for the GUID data blocks
|
||||
*/
|
||||
static __init acpi_status parse_wdg(acpi_handle handle)
|
||||
{
|
||||
struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
union acpi_object *obj;
|
||||
struct guid_block *gblock;
|
||||
struct wmi_block *wblock;
|
||||
acpi_status status;
|
||||
u32 i, total;
|
||||
|
||||
status = acpi_evaluate_object(handle, "_WDG", NULL, &out);
|
||||
|
||||
if (ACPI_FAILURE(status))
|
||||
return status;
|
||||
|
||||
obj = (union acpi_object *) out.pointer;
|
||||
|
||||
if (obj->type != ACPI_TYPE_BUFFER)
|
||||
return AE_ERROR;
|
||||
|
||||
total = obj->buffer.length / sizeof(struct guid_block);
|
||||
|
||||
gblock = kzalloc(obj->buffer.length, GFP_KERNEL);
|
||||
if (!gblock)
|
||||
return AE_NO_MEMORY;
|
||||
|
||||
memcpy(gblock, obj->buffer.pointer, obj->buffer.length);
|
||||
|
||||
for (i = 0; i < total; i++) {
|
||||
wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
|
||||
if (!wblock)
|
||||
return AE_NO_MEMORY;
|
||||
|
||||
wblock->gblock = gblock[i];
|
||||
wblock->handle = handle;
|
||||
list_add_tail(&wblock->list, &wmi_blocks.list);
|
||||
}
|
||||
|
||||
kfree(out.pointer);
|
||||
kfree(gblock);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/*
|
||||
* WMI can have EmbeddedControl access regions. In which case, we just want to
|
||||
* hand these off to the EC driver.
|
||||
*/
|
||||
static acpi_status
|
||||
acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
|
||||
u32 bits, acpi_integer * value,
|
||||
void *handler_context, void *region_context)
|
||||
{
|
||||
int result = 0, i = 0;
|
||||
u8 temp = 0;
|
||||
|
||||
if ((address > 0xFF) || !value)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
if (function != ACPI_READ && function != ACPI_WRITE)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
if (bits != 8)
|
||||
return AE_BAD_PARAMETER;
|
||||
|
||||
if (function == ACPI_READ) {
|
||||
result = ec_read(address, &temp);
|
||||
(*value) |= ((acpi_integer)temp) << i;
|
||||
} else {
|
||||
temp = 0xff & ((*value) >> i);
|
||||
result = ec_write(address, temp);
|
||||
}
|
||||
|
||||
switch (result) {
|
||||
case -EINVAL:
|
||||
return AE_BAD_PARAMETER;
|
||||
break;
|
||||
case -ENODEV:
|
||||
return AE_NOT_FOUND;
|
||||
break;
|
||||
case -ETIME:
|
||||
return AE_TIME;
|
||||
break;
|
||||
default:
|
||||
return AE_OK;
|
||||
}
|
||||
}
|
||||
|
||||
static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
|
||||
{
|
||||
struct guid_block *block;
|
||||
struct wmi_block *wblock;
|
||||
struct list_head *p;
|
||||
struct acpi_device *device = data;
|
||||
|
||||
list_for_each(p, &wmi_blocks.list) {
|
||||
wblock = list_entry(p, struct wmi_block, list);
|
||||
block = &wblock->gblock;
|
||||
|
||||
if ((block->flags & ACPI_WMI_EVENT) &&
|
||||
(block->notify_id == event)) {
|
||||
if (wblock->handler)
|
||||
wblock->handler(event, wblock->handler_data);
|
||||
|
||||
acpi_bus_generate_netlink_event(
|
||||
device->pnp.device_class, device->dev.bus_id,
|
||||
event, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int acpi_wmi_remove(struct acpi_device *device, int type)
|
||||
{
|
||||
acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
|
||||
acpi_wmi_notify);
|
||||
|
||||
acpi_remove_address_space_handler(device->handle,
|
||||
ACPI_ADR_SPACE_EC, &acpi_wmi_ec_space_handler);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init acpi_wmi_add(struct acpi_device *device)
|
||||
{
|
||||
acpi_status status;
|
||||
int result = 0;
|
||||
|
||||
status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
|
||||
acpi_wmi_notify, device);
|
||||
if (ACPI_FAILURE(status)) {
|
||||
printk(KERN_ERR PREFIX "Error installing notify handler\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
status = acpi_install_address_space_handler(device->handle,
|
||||
ACPI_ADR_SPACE_EC,
|
||||
&acpi_wmi_ec_space_handler,
|
||||
NULL, NULL);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
status = parse_wdg(device->handle);
|
||||
if (ACPI_FAILURE(status)) {
|
||||
printk(KERN_ERR PREFIX "Error installing EC region handler\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init acpi_wmi_init(void)
|
||||
{
|
||||
acpi_status result;
|
||||
|
||||
if (acpi_disabled)
|
||||
return -ENODEV;
|
||||
|
||||
INIT_LIST_HEAD(&wmi_blocks.list);
|
||||
|
||||
result = acpi_bus_register_driver(&acpi_wmi_driver);
|
||||
|
||||
if (result < 0) {
|
||||
printk(KERN_INFO PREFIX "Error loading mapper\n");
|
||||
} else {
|
||||
printk(KERN_INFO PREFIX "Mapper loaded\n");
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static void __exit acpi_wmi_exit(void)
|
||||
{
|
||||
struct list_head *p, *tmp;
|
||||
struct wmi_block *wblock;
|
||||
|
||||
acpi_bus_unregister_driver(&acpi_wmi_driver);
|
||||
|
||||
list_for_each_safe(p, tmp, &wmi_blocks.list) {
|
||||
wblock = list_entry(p, struct wmi_block, list);
|
||||
|
||||
list_del(p);
|
||||
kfree(wblock);
|
||||
}
|
||||
|
||||
printk(KERN_INFO PREFIX "Mapper unloaded\n");
|
||||
}
|
||||
|
||||
subsys_initcall(acpi_wmi_init);
|
||||
module_exit(acpi_wmi_exit);
|
||||
@ -92,6 +92,22 @@ config TIFM_7XX1
|
||||
To compile this driver as a module, choose M here: the module will
|
||||
be called tifm_7xx1.
|
||||
|
||||
config ACER_WMI
|
||||
tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
|
||||
depends on X86
|
||||
depends on EXPERIMENTAL
|
||||
depends on ACPI
|
||||
depends on ACPI_WMI
|
||||
depends on LEDS_CLASS
|
||||
depends on BACKLIGHT_CLASS_DEVICE
|
||||
---help---
|
||||
This is a driver for newer Acer (and Wistron) laptops. It adds
|
||||
wireless radio and bluetooth control, and on some laptops,
|
||||
exposes the mail LED and LCD backlight.
|
||||
|
||||
If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
|
||||
here.
|
||||
|
||||
config ASUS_LAPTOP
|
||||
tristate "Asus Laptop Extras (EXPERIMENTAL)"
|
||||
depends on X86
|
||||
@ -126,6 +142,15 @@ config FUJITSU_LAPTOP
|
||||
|
||||
If you have a Fujitsu laptop, say Y or M here.
|
||||
|
||||
config TC1100_WMI
|
||||
tristate "HP Compaq TC1100 Tablet WMI Extras"
|
||||
depends on X86 && !X86_64
|
||||
depends on ACPI
|
||||
depends on ACPI_WMI
|
||||
---help---
|
||||
This is a driver for the WMI extensions (wireless and bluetooth power
|
||||
control) of the HP Compaq TC1100 tablet.
|
||||
|
||||
config MSI_LAPTOP
|
||||
tristate "MSI Laptop Extras"
|
||||
depends on X86
|
||||
|
||||
@ -6,8 +6,10 @@ obj- := misc.o # Dummy rule to force built-in.o to be made
|
||||
obj-$(CONFIG_IBM_ASM) += ibmasm/
|
||||
obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs/
|
||||
obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
|
||||
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
|
||||
obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o
|
||||
obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
|
||||
obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
|
||||
obj-$(CONFIG_LKDTM) += lkdtm.o
|
||||
obj-$(CONFIG_TIFM_CORE) += tifm_core.o
|
||||
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
|
||||
|
||||
1109
drivers/misc/acer-wmi.c
Normal file
1109
drivers/misc/acer-wmi.c
Normal file
File diff suppressed because it is too large
Load Diff
290
drivers/misc/tc1100-wmi.c
Normal file
290
drivers/misc/tc1100-wmi.c
Normal file
@ -0,0 +1,290 @@
|
||||
/*
|
||||
* HP Compaq TC1100 Tablet WMI Extras Driver
|
||||
*
|
||||
* Copyright (C) 2007 Carlos Corbacho <carlos@strangeworlds.co.uk>
|
||||
* Copyright (C) 2004 Jamey Hicks <jamey.hicks@hp.com>
|
||||
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
|
||||
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/types.h>
|
||||
#include <acpi/acpi.h>
|
||||
#include <acpi/actypes.h>
|
||||
#include <acpi/acpi_bus.h>
|
||||
#include <acpi/acpi_drivers.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#define GUID "C364AC71-36DB-495A-8494-B439D472A505"
|
||||
|
||||
#define TC1100_INSTANCE_WIRELESS 1
|
||||
#define TC1100_INSTANCE_JOGDIAL 2
|
||||
|
||||
#define TC1100_LOGPREFIX "tc1100-wmi: "
|
||||
#define TC1100_INFO KERN_INFO TC1100_LOGPREFIX
|
||||
|
||||
MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho");
|
||||
MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505");
|
||||
|
||||
static int tc1100_probe(struct platform_device *device);
|
||||
static int tc1100_remove(struct platform_device *device);
|
||||
static int tc1100_suspend(struct platform_device *device, pm_message_t state);
|
||||
static int tc1100_resume(struct platform_device *device);
|
||||
|
||||
static struct platform_driver tc1100_driver = {
|
||||
.driver = {
|
||||
.name = "tc1100-wmi",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.probe = tc1100_probe,
|
||||
.remove = tc1100_remove,
|
||||
.suspend = tc1100_suspend,
|
||||
.resume = tc1100_resume,
|
||||
};
|
||||
|
||||
static struct platform_device *tc1100_device;
|
||||
|
||||
struct tc1100_data {
|
||||
u32 wireless;
|
||||
u32 jogdial;
|
||||
};
|
||||
|
||||
static struct tc1100_data suspend_data;
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Device Management
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
static int get_state(u32 *out, u8 instance)
|
||||
{
|
||||
u32 tmp;
|
||||
acpi_status status;
|
||||
struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
|
||||
union acpi_object *obj;
|
||||
|
||||
if (!out)
|
||||
return -EINVAL;
|
||||
|
||||
if (instance > 2)
|
||||
return -ENODEV;
|
||||
|
||||
status = wmi_query_block(GUID, instance, &result);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
obj = (union acpi_object *) result.pointer;
|
||||
if (obj && obj->type == ACPI_TYPE_BUFFER &&
|
||||
obj->buffer.length == sizeof(u32)) {
|
||||
tmp = *((u32 *) obj->buffer.pointer);
|
||||
} else {
|
||||
tmp = 0;
|
||||
}
|
||||
|
||||
if (result.length > 0 && result.pointer)
|
||||
kfree(result.pointer);
|
||||
|
||||
switch (instance) {
|
||||
case TC1100_INSTANCE_WIRELESS:
|
||||
*out = (tmp == 3) ? 1 : 0;
|
||||
return 0;
|
||||
case TC1100_INSTANCE_JOGDIAL:
|
||||
*out = (tmp == 1) ? 1 : 0;
|
||||
return 0;
|
||||
default:
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
|
||||
static int set_state(u32 *in, u8 instance)
|
||||
{
|
||||
u32 value;
|
||||
acpi_status status;
|
||||
struct acpi_buffer input;
|
||||
|
||||
if (!in)
|
||||
return -EINVAL;
|
||||
|
||||
if (instance > 2)
|
||||
return -ENODEV;
|
||||
|
||||
switch (instance) {
|
||||
case TC1100_INSTANCE_WIRELESS:
|
||||
value = (*in) ? 1 : 2;
|
||||
break;
|
||||
case TC1100_INSTANCE_JOGDIAL:
|
||||
value = (*in) ? 0 : 1;
|
||||
break;
|
||||
default:
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
input.length = sizeof(u32);
|
||||
input.pointer = &value;
|
||||
|
||||
status = wmi_set_block(GUID, instance, &input);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
FS Interface (/sys)
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
/*
|
||||
* Read/ write bool sysfs macro
|
||||
*/
|
||||
#define show_set_bool(value, instance) \
|
||||
static ssize_t \
|
||||
show_bool_##value(struct device *dev, struct device_attribute *attr, \
|
||||
char *buf) \
|
||||
{ \
|
||||
u32 result; \
|
||||
acpi_status status = get_state(&result, instance); \
|
||||
if (ACPI_SUCCESS(status)) \
|
||||
return sprintf(buf, "%d\n", result); \
|
||||
return sprintf(buf, "Read error\n"); \
|
||||
} \
|
||||
\
|
||||
static ssize_t \
|
||||
set_bool_##value(struct device *dev, struct device_attribute *attr, \
|
||||
const char *buf, size_t count) \
|
||||
{ \
|
||||
u32 tmp = simple_strtoul(buf, NULL, 10); \
|
||||
acpi_status status = set_state(&tmp, instance); \
|
||||
if (ACPI_FAILURE(status)) \
|
||||
return -EINVAL; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
|
||||
show_bool_##value, set_bool_##value);
|
||||
|
||||
show_set_bool(wireless, TC1100_INSTANCE_WIRELESS);
|
||||
show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL);
|
||||
|
||||
static void remove_fs(void)
|
||||
{
|
||||
device_remove_file(&tc1100_device->dev, &dev_attr_wireless);
|
||||
device_remove_file(&tc1100_device->dev, &dev_attr_jogdial);
|
||||
}
|
||||
|
||||
static int add_fs(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = device_create_file(&tc1100_device->dev, &dev_attr_wireless);
|
||||
if (ret)
|
||||
goto add_sysfs_error;
|
||||
|
||||
ret = device_create_file(&tc1100_device->dev, &dev_attr_jogdial);
|
||||
if (ret)
|
||||
goto add_sysfs_error;
|
||||
|
||||
return ret;
|
||||
|
||||
add_sysfs_error:
|
||||
remove_fs();
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Driver Model
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
static int tc1100_probe(struct platform_device *device)
|
||||
{
|
||||
int result = 0;
|
||||
|
||||
result = add_fs();
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
static int tc1100_remove(struct platform_device *device)
|
||||
{
|
||||
remove_fs();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tc1100_suspend(struct platform_device *dev, pm_message_t state)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = get_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = get_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int tc1100_resume(struct platform_device *dev)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = set_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = set_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __init tc1100_init(void)
|
||||
{
|
||||
int result = 0;
|
||||
|
||||
if (!wmi_has_guid(GUID))
|
||||
return -ENODEV;
|
||||
|
||||
result = platform_driver_register(&tc1100_driver);
|
||||
if (result)
|
||||
return result;
|
||||
|
||||
tc1100_device = platform_device_alloc("tc1100-wmi", -1);
|
||||
platform_device_add(tc1100_device);
|
||||
|
||||
printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n");
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static void __exit tc1100_exit(void)
|
||||
{
|
||||
platform_device_del(tc1100_device);
|
||||
platform_driver_unregister(&tc1100_driver);
|
||||
|
||||
printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras unloaded\n");
|
||||
}
|
||||
|
||||
module_init(tc1100_init);
|
||||
module_exit(tc1100_exit);
|
||||
@ -193,6 +193,26 @@ extern int ec_transaction(u8 command,
|
||||
|
||||
#endif /*CONFIG_ACPI_EC*/
|
||||
|
||||
#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
|
||||
|
||||
typedef void (*wmi_notify_handler) (u32 value, void *context);
|
||||
|
||||
extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
|
||||
u32 method_id,
|
||||
const struct acpi_buffer *in,
|
||||
struct acpi_buffer *out);
|
||||
extern acpi_status wmi_query_block(const char *guid, u8 instance,
|
||||
struct acpi_buffer *out);
|
||||
extern acpi_status wmi_set_block(const char *guid, u8 instance,
|
||||
const struct acpi_buffer *in);
|
||||
extern acpi_status wmi_install_notify_handler(const char *guid,
|
||||
wmi_notify_handler handler, void *data);
|
||||
extern acpi_status wmi_remove_notify_handler(const char *guid);
|
||||
extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
|
||||
extern bool wmi_has_guid(const char *guid);
|
||||
|
||||
#endif /* CONFIG_ACPI_WMI */
|
||||
|
||||
extern int acpi_blacklisted(void);
|
||||
#ifdef CONFIG_DMI
|
||||
extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user