Sample Code
Windows Driver Samples/ WMI ACPI Sample/ C++/ wmiacpi/ device.asl/
//
// Sample ASL code to demonstrate WMI query, set, method and event operations
//
// Insert this code at an appropriate place in the bios ASL source, rebuild
// the DSDT and replace the original DSDT via the registry or reflashing.
// NT should recognize the pnp0c14 device and by the magic of pnp install
// wmiacpi.sys and bind it to this ASL. Note that you can have as many
// devices as needed, however each device must have a unique _UID.
//
Device(AMW0)
{
// pnp0c14 is pnp id assigned to WMI mapper
Name(_HID, "*pnp0c14")
Name(_UID, 0x0)
//
// Description of data, events and methods supported by this ASL device.
Name(_WDG, Buffer() {
//
// Query - Set Guids.
//
// {ABBC0F6a-8EA1-11d1-00A0-C90629100000}
// Query - Set Package Guid
0x6a, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
65, 65, // Object Id (AA)
4, // Instance Count
0x01, // Flags (WMIACPI_REGFLAG_EXPENSIVE)
// {ABBC0F6b-8EA1-11d1-00A0-C90629100000}
// Query - Set String Guid
0x6b, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
65, 66, // Object Id (AB)
4, // Instance Count
0x05, // Flags (WMIACPI_REGFLAG_EXPENSIVE |
// WMIACPI_REGFLAG_STRING)
// Query - Set ULONG Guid
// {ABBC0F6c-8EA1-11d1-00A0-C90629100000}
0x6c, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
65, 67, // Object Id (AC)
4, // Instance Count
0x01, // Flags (WMIACPI_REGFLAG_EXPENSIVE)
//
// Method Guids
// Method Id 1 is get with no input
// Method Id 2 is set with no output
// Method Id 3 is fire event
// Package
// {ABBC0F6d-8EA1-11d1-00A0-C90629100000}
0x6d, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
66, 65, // Object Id (BA)
4, // Instance Count
0x02, // Flags (WMIACPI_REGFLAG_METHOD)
// String
// {ABBC0F6e-8EA1-11d1-00A0-C90629100000}
0x6e, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
66, 66, // Object Id (BB)
4, // Instance Count
0x06, // Flags (WMIACPI_REGFLAG_METHOD)
// WMIACPI_REGFLAG_STRING)
// ULONG
// {ABBC0F6f-8EA1-11d1-00A0-C90629100000}
0x6f, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
66, 67, // Object Id (BC)
4, // Instance Count
0x02, // Flags (WMIACPI_REGFLAG_METHOD)
//
// Event Guids
// Package
// {ABBC0F70-8EA1-11d1-00A0-C90629100000}
0x70, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
0xd0, 0, // Notification Id
1, // Instance Count
0x08, // Flags (WMIACPI_REGFLAG_EVENT)
// String
// {ABBC0F71-8EA1-11d1-00A0-C90629100000}
0x71, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
0xd1, 0, // Notification Id
1, // Instance Count
0x0c, // Flags (WMIACPI_REGFLAG_EVENT)
// WMIACPI_REGFLAG_STRING)
// ULONG
// {ABBC0F72-8EA1-11d1-00A0-C90629100000}
0x72, 0x0f, 0xBC, 0xAB, 0xa1, 0x8e, 0xd1, 0x11, 0x00, 0xa0, 0xc9, 0x06, 0x29, 0x10, 0, 0,
0xd2, 0, // Notification Id
1, // Instance Count
0x08 // Flags (WMIACPI_REGFLAG_EVENT)
})
// Storage for 4 instances of Package
Name(SAA0, Buffer(0x10)
{
1,0,0,0, 2,0,0,0, 3,0,0,0, 4,0,0,0
})
Name(SAA1, Buffer(0x10)
{
1,0,0,0, 2,0,0,0, 3,0,0,0, 4,0,0,0
})
Name(SAA2, Buffer(0x10)
{
1,0,0,0, 2,0,0,0, 3,0,0,0, 4,0,0,0
})
Name(SAA3, Buffer(0x10)
{
1,0,0,0, 2,0,0,0, 3,0,0,0, 4,0,0,0
})
// Storage for 4 instances of string
// Maximum length for string is 80 chars
Name(SAB0, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!@#$%^&*()1234567890-_=+[]{}")
Name(SAB1, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!@#$%^&*()1234567890-_=+[]{}")
Name(SAB2, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!@#$%^&*()1234567890-_=+[]{}")
Name(SAB3, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!@#$%^&*()1234567890-_=+[]{}")
// Storage for 4 instances of ULONG
Name(SAC0, 0)
Name(SAC1, 1)
Name(SAC2, 2)
Name(SAC3, 3)
// Collection Control flags
Name(CCAA, 0)
Name(CCAB, 0)
Name(CCAC, 0)
// Event Control flags
Name(ECD0, 0)
Name(ECD1, 0)
Name(ECD2, 0)
// Collection control for AA
// Arg0 has 0 for disable, non 0 for enable
Method(WCAA, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(CCAA, Zero))
{
// ERROR - Collection Control was already disabled
Name(Foo, "WMIACPI: ASL: WCAA called, but CCAA is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 14, 0)
}
} else {
// We are enabling
if (LNotEqual(CCAA, Zero))
{
// ERROR - Collection Control was already enabled
Name(Foo1, "WMIACPI: ASL: WCAA called, but CCAA is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 13, 0)
}
}
Store(Arg0, CCAA)
}
// Collection control for AB
// Arg0 has 0 for disable, non 0 for enable
Method(WCAB, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(CCAB, Zero))
{
// ERROR - Collection Control was already disabled
Name(Foo, "WMIACPI: ASL: WCAB called, but CCAB is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 16, 0)
}
} else {
// We are enabling
if (LNotEqual(CCAB, Zero))
{
// ERROR - Collection Control was already enabled
Name(Foo1, "WMIACPI: ASL: WCAB called, but CCAB is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 15, 0)
}
}
Store(Arg0, CCAB)
}
// Collection control for AC
// Arg0 has 0 for disable, non 0 for enable
Method(WCAC, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(CCAC, Zero))
{
// ERROR - Collection Control was already disabled
Name(Foo, "WMIACPI: ASL: WCAC called, but CCAC is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 18, 0)
}
} else {
// We are enabling
if (LNotEqual(CCAC, Zero))
{
// ERROR - Collection Control was already enabled
Name(Foo1, "WMIACPI: ASL: WCAC called, but CCAC is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 17, 0)
}
}
Store(Arg0, CCAC)
}
// Event control for D0
// Arg0 has 0 for disable, non 0 for enable
Method(WED0, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(ECD0, Zero))
{
// ERROR - Event Control was already disabled
Name(Foo, "WMIACPI: ASL: WED0 called, but ECD0 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 20, 0)
}
} else {
// We are enabling
if (LNotEqual(ECD0, Zero))
{
// ERROR - Event Control was already enabled
Name(Foo1, "WMIACPI: ASL: WED0 called, but WED0 is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 19, 0)
}
}
Store(Arg0, ECD0)
}
// Event control for D1
// Arg0 has 0 for disable, non 0 for enable
Method(WED1, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(ECD1, Zero))
{
// ERROR - Event Control was already disabled
Name(Foo, "WMIACPI: ASL: WED1 called, but ECD1 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 22, 0)
}
} else {
// We are enabling
if (LNotEqual(ECD1, Zero))
{
// ERROR - Event Control was already enabled
Name(Foo1, "WMIACPI: ASL: WED1 called, but WED1 is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 21, 0)
}
}
Store(Arg0, ECD1)
}
// Event control for D2
// Arg0 has 0 for disable, non 0 for enable
Method(WED2, 1) {
if (LEqual(Arg0, Zero))
{
// We are disabling
if (LEqual(ECD2, Zero))
{
// ERROR - Event Control was already disabled
Name(Foo, "WMIACPI: ASL: WED2 called, but ECD2 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 24, 0)
}
} else {
// We are enabling
if (LNotEqual(ECD2, Zero))
{
// ERROR - Event Control was already enabled
Name(Foo1, "WMIACPI: ASL: WED2 called, but WED2 is 1\n")
Store(Foo1, Debug)
Fatal(0xa0, 23, 0)
}
}
Store(Arg0, ECD2)
}
// Get value for package A
Method(GETA, 1)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Return(SAA0)
}
if (LEqual(Arg0, 1)) {
Return(SAA1)
}
if (LEqual(Arg0, 2)) {
Return(SAA2)
}
if (LEqual(Arg0, 3)) {
Return(SAA3)
}
Name(Foo, "WMIACPI: ASL: GETA called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 2, 0)
}
// Get value for package A
Method(GETB, 1)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Return(SAB0)
}
if (LEqual(Arg0, 1)) {
Return(SAB1)
}
if (LEqual(Arg0, 2)) {
Return(SAB2)
}
if (LEqual(Arg0, 3)) {
Return(SAB3)
}
Name(Foo, "WMIACPI: ASL: GETB called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 4, 0)
}
Method(GETC, 1)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Return(SAC0)
}
if (LEqual(Arg0, 1)) {
Return(SAC1)
}
if (LEqual(Arg0, 2)) {
Return(SAC2)
}
if (LEqual(Arg0, 3)) {
Return(SAC3)
}
Name(Foo, "WMIACPI: ASL: GETC called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 6, 0)
}
//
// Package Query data block
// Arg0 has the instance being queried
Method(WQAA, 1) {
if (LEqual(CCAA, Zero))
{
// ERROR - Collection Control was not enabled
Name(Foo, "WMIACPI: ASL: WQAA called, but CCAA is 0\n")
Store(Foo, Debug)
Name(Foo1, "aa")
Store(Debug, Foo1)
Fatal(0xa0, 1, 0)
}
Return(GETA(Arg0))
}
//
// String Query data block
// Arg0 has the instance being queried
Method(WQAB, 1) {
if (LEqual(CCAB, Zero))
{
// ERROR - Collection Control was not enabled
Name(Foo, "WMIACPI: ASL: WQAB called, but CCAB is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 3, 0)
}
Return(GETB(Arg0))
}
//
// ULONG Query data block
// Arg0 has the instance being queried
Method(WQAC, 1) {
if (LEqual(CCAC, Zero))
{
// ERROR - Collection Control was not enabled
Name(Foo, "WMIACPI: ASL: WQAC called, but CCAC is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 5, 0)
}
Return(GETC(Arg0))
}
Method(SETA, 2)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Store(Arg1, SAA0)
Return(SAA0)
}
if (LEqual(Arg0, 1)) {
Store(Arg1, SAA1)
Return(SAA1)
}
if (LEqual(Arg0, 2)) {
Store(Arg1, SAA2)
Return(SAA2)
}
if (LEqual(Arg0, 3)) {
Store(Arg1, SAA3)
Return(SAA3)
}
Name(Foo, "WMIACPI: ASL: SETA called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 8, 0)
}
Method(SETB, 2)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Store(Arg1, SAB0)
Return(SAB0)
}
if (LEqual(Arg0, 1)) {
Store(Arg1, SAB1)
Return(SAB1)
}
if (LEqual(Arg0, 2)) {
Store(Arg1, SAB2)
Return(SAB2)
}
if (LEqual(Arg0, 3)) {
Store(Arg1, SAB3)
Return(SAB3)
}
Name(Foo, "WMIACPI: ASL: SETB called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 10, 0)
}
Method(SETC, 2)
{
//
// Return data corresponding to instance specified
if (LEqual(Arg0, Zero)) {
Store(Arg1, SAC0)
Return(SAC0)
}
if (LEqual(Arg0, 1)) {
Store(Arg1, SAC1)
Return(SAC1)
}
if (LEqual(Arg0, 2)) {
Store(Arg1, SAC2)
Return(SAC2)
}
if (LEqual(Arg0, 3)) {
Store(Arg1, SAC3)
Return(SAC3)
}
Name(Foo, "WMIACPI: ASL: SETC called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 12, 0)
}
//
// Set Data Block - Package
// Arg0 has the instance being queried
// Arg1 has the new value for the data block instance
Method(WSAA, 2) {
if (LEqual(CCAA, Zero))
{
// ERROR - Collection Control was not enabled
Name(Foo, "WMIACPI: ASL: WSAA called, but CCAA is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 7, 0)
}
Return(SETA(Arg0, Arg1))
}
//
// Set Data Block - String
// Arg0 has the instance being queried
// Arg1 has the new value for the data block instance
Method(WSAB, 2) {
if (LEqual(CCAB, Zero))
{
// ERROR - Collection Control was not enabled
Name(Foo, "WMIACPI: ASL: WSAB called, but CCAB is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 9, 0)
}
Return(SETB(Arg0, Arg1))
}
//
// Set Data Block - ULONG
// Arg0 has the instance being queried
// Arg1 has the new value for the data block instance
Method(WSAC, 2) {
if (LEqual(CCAC, Zero))
{
// ERROR - Collection Control was not enACled
Name(Foo, "WMIACPI: ASL: WSAC called, but CCAC is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 11, 0)
}
Return(SETC(Arg0, Arg1))
}
//
// Validate that instance index is between 0 and 3
Method(VINS, 1)
{
if (LLess(Arg0, Zero))
{
Name(Foo, "WMIACPI: ASL: VINS called with InstanceIndex = ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 27, 0)
}
if (LGreater(Arg0, 3))
{
Name(Foo1, "WMIACPI: ASL: VINS called with InstanceIndex = ")
Store(Foo1, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 28, 0)
}
}
//
// Package Method data block
// Arg0 has the instance being queried
// Arg1 has the method id
// Arg2 has the data passed
Method(WMBA, 3) {
// MethodId 1 - Get
if (LEqual(Arg1, 1))
{
Return(GETA(Arg0))
}
// MethodId 2 - Set
if (LEqual(Arg1, 2))
{
SETA(Arg0, Arg2)
Return(0)
}
// MethodId 3 - Event Generate
if (LEqual(Arg1, 3))
{
VINS(Arg0)
if (LEqual(ECD0, Zero))
{
// ERROR - Event Control was not enabled
Name(Foo, "WMIACPI: ASL: WMBA called, but ECD0 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 25, 0)
}
Notify(AMW0, 0xd0)
Return(0)
}
Name(Foo1, "WMIACPI: ASL: WMBA passed method id ")
Store(Foo1, Debug)
Store(Arg1, Debug)
Fatal(0xa0, 26, 0)
}
//
// String Method data block
// Arg0 has the instance being queried
// Arg1 has the method id
// Arg2 has the data passed
Method(WMBB, 3) {
// MethodId 1 - Get
if (LEqual(Arg1, 1))
{
Return(GETB(Arg0))
}
// MethodId 2 - Set
if (LEqual(Arg1, 2))
{
SETB(Arg0, Arg2)
Return(0)
}
// MethodId 3 - Event Generate
if (LEqual(Arg1, 3))
{
VINS(Arg0)
if (LEqual(ECD1, Zero))
{
// ERROR - Event Control was not enabled
Name(Foo, "WMIACPI: ASL: WMBB called, but ECD1 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 29, 0)
}
Notify(AMW0, 0xd1)
Return(0)
}
Name(Foo1, "WMIACPI: ASL: WMBB passed method id ")
Store(Foo1, Debug)
Store(Arg1, Debug)
Fatal(0xa0, 30, 0)
}
//
// ULONG Method data block
// Arg0 has the instance being queried
// Arg1 has the method id
// Arg2 has the data passed
Method(WMBC, 3) {
// MethodId 1 - Get
if (LEqual(Arg1, 1))
{
Return(GETC(Arg0))
}
// MethodId 2 - Set
if (LEqual(Arg1, 2))
{
SETC(Arg0, Arg2)
Return(0)
}
// MethodId 3 - Event Generate
if (LEqual(Arg1, 3))
{
VINS(Arg0)
if (LEqual(ECD2, Zero))
{
// ERROR - Event Control was not enabled
Name(Foo, "WMIACPI: ASL: WMBC called, but ECD2 is 0\n")
Store(Foo, Debug)
Fatal(0xa0, 31, 0)
}
Notify(AMW0, 0xd2)
Return(0)
}
Name(Foo1, "WMIACPI: ASL: WMBC passed method id ")
Store(Foo1, Debug)
Store(Arg1, Debug)
Fatal(0xa0, 32, 0)
}
//
// More info about an event
// Arg0 is the event id that was fired
Method(_WED, 1)
{
if (LEqual(Arg0, 0xd0))
{
Return(GETA(0))
}
if (LEqual(Arg0, 0xd1))
{
Return(GETB(0))
}
if (LEqual(Arg0, 0xd2))
{
Return(GETC(0))
}
Name(Foo, "WMIACPI: ASL: _WED passed event code ")
Store(Foo, Debug)
Store(Arg0, Debug)
Fatal(0xa0, 33, 0)
}
}
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