Re: Event handler for ACAD

[Andriy Stepanov <stanv@altlinux.ru>]

Thanks!
With:
# modprobe ac
all works fine!

Alexey Starikovskiy wrote:
> 1. ACPI names are 4 bytes long, so AC will be padded with _.
> 2. Your output shows that there is no handler for AC event, do you have 
> ACPI AC driver compiled and loaded?
> 
> 
> 
> Andriy Stepanov wrote:
>> Hello!
>> I have a notebook.
>>
>> System doesn't change energy consumption policy when I unplug ACAD.
>>
>> # service acpid stop
>> # cat /proc/acpi/event
>> processor CPU0 00000080 00000001   <----- unplug ACAD
>> processor CPU0 00000080 00000000
>>
>>
>> No any messages about ACAD.
>>
>> My dsdt.dsl have two following interesting sections:
>> 1.
>> Device (AC)
>>         {
>>             Name (_HID, "ACPI0003")
>>             Name (_PCL, Package (0x01)
>>             {
>>                 \_SB
>>             })
>>             Method (_PSR, 0, NotSerialized)
>>             {
>>                 If (\_SB.PCI0.EC.ADP)
>>                 {
>>                     Store (0x03, \DBUG)
>>                     Store (Zero, \_PR.CPU0._PPC)
>>                 }
>>                 Else
>>                 {
>>                     Store (0x01, \DBUG)
>>                     Store (0x01, \_PR.CPU0._PPC)
>>                 }
>>
>>                 Notify (\_PR.CPU0, 0x80)
>>                 If (\_SB.PCI0.EC.ECOK)
>>                 {
>>                     Return (\_SB.PCI0.EC.ADP)
>>                 }
>>             }
>>
>> 2.
>> Method (_Q16, 0, NotSerialized)
>>                 {
>>                     Notify (\_SB.AC, 0x80)
>>                     If (\_SB.PCI0.EC.ADP)
>>                     {
>>                         Store (0x03, \DBUG)
>>                         Store (Zero, \_PR.CPU0._PPC)
>>                     }
>>                     Else
>>                     {
>>                         Store (0x01, \DBUG)
>>                         Store (0x01, \_PR.CPU0._PPC)
>>                     }
>>
>>                     Notify (\_PR.CPU0, 0x80)
>>                 }
>>
>>
>>
>>
>> Method _Q16 always called when I unplug ACAD.
>>
>>
>> For instruction: Notify (\_SB.AC, 0x80)
>> ACPI debug subsystem print:
>>
>>
>>
>> <4>  nsdump-0087 [33] ns_print_pathname     : [_SB_.AC__]
>> <4>nssearch-0104 [35] ns_search_node        : Searching \ (c0352bd0) 
>> For [_SB_] (Untyped)
>> <4>nssearch-0138 [35] ns_search_node        : Name [_SB_] (Device) 
>> cbf09ca8 found in scope ["\" ] c0352bd0
>> <4>nssearch-0104 [35] ns_search_node        : Searching \_SB_ 
>> (cbf09ca8) For [AC__] (Untyped)
>> <4>nssearch-0138 [35] ns_search_node        : Name [AC__] (Device) 
>> cbf092e8 found in scope [_SB_] cbf09ca8
>> <4>  psloop-0378 [30] ps_parse_loop         : Opcode 000A [ByteConst] 
>> Op cbba1250 Aml cc809a6a aml_offset 0000B
>> <4> psscope-0228 [31] ps_pop_scope          : Popped Op cbba1218 Args 0
>> <4>  psloop-0793 [30] ps_parse_loop         : Popped scope, Op=cbba1218
>> <4> dsutils-0475 [33] ds_create_operand     : Getting a name: 
>> Arg=cbba1234
>> <4> exnames-0276 [34] ex_get_name_string    : root_prefix(\) at cc809a5f
>> <4> exnames-0318 [34] ex_get_name_string    : dual_name_prefix at 
>> cc809a60
>> <4> exnames-0175 [35] ex_name_segment       : Bytes from stream:
>> <4> exnames-0181 [35] ex_name_segment       : _
>> <4> exnames-0181 [35] ex_name_segment       : S
>> <4> exnames-0181 [35] ex_name_segment       : B
>> <4> exnames-0181 [35] ex_name_segment       : _
>> <4> exnames-0194 [35] ex_name_segment       : Appended to - \._SB_
>> <4> exnames-0175 [35] ex_name_segment       : Bytes from stream:
>> <4> exnames-0181 [35] ex_name_segment       : A
>> <4> exnames-0181 [35] ex_name_segment       : C
>> <4> exnames-0181 [35] ex_name_segment       : _
>> <4> exnames-0181 [35] ex_name_segment       : _
>> <4> exnames-0194 [35] ex_name_segment       : Appended to - \._SB_AC__
>> <4>nsaccess-0403 [34] ns_lookup             : Path is absolute from 
>> root [c0352bd0]
>> <4>nsaccess-0489 [34] ns_lookup             : Dual Pathname (2 
>> segments, Flags=3)
>> <4>  nsdump-0087 [34] ns_print_pathname     : [_SB_.AC__]
>> <4>nssearch-0104 [36] ns_search_node        : Searching \ (c0352bd0) 
>> For [_SB_] (Untyped)
>> <4>nssearch-0138 [36] ns_search_node        : Name [_SB_] (Device) 
>> cbf09ca8 found in scope ["\" ] c0352bd0
>> <4>nssearch-0104 [36] ns_search_node        : Searching \_SB_ 
>> (cbf09ca8) For [AC__] (Untyped)
>> <4>nssearch-0138 [36] ns_search_node        : Name [AC__] (Device) 
>> cbf092e8 found in scope [_SB_] cbf09ca8
>> <4>dswstate-0424 [33] ds_obj_stack_push     : Obj=cbf092e8 [Device] 
>> State=c1e6b828 #Ops=1
>> <4> dsutils-0712 [32] ds_create_operands    : Arg #0 (cbba1234) done, 
>> Arg1=cbba1234
>> <4>dswstate-0424 [33] ds_obj_stack_push     : Obj=cbd9bb8c [Integer] 
>> State=c1e6b828 #Ops=2
>> <4> dsutils-0712 [32] ds_create_operands    : Arg #1 (cbba1250) done, 
>> Arg1=cbba1234
>> <4>dswstate-0380 [31] ds_result_stack_pop   : Result=ca92e244 
>> remaining_results=0 State=c1e6b828
>> <4> exresop-0162 [32] ex_resolve_operands   : Opcode 86 [Notify] 
>> required_operand_types=000001A6
>> <4>exresolv-0119 [33] ex_resolve_to_value   : Resolved object cbd9bb8c
>> <4>  exdump-0792 [31] ex_dump_operands      : ************* Operand 
>> Stack Contents (Opcode [Notify], 2 Operands)
>> <4>  exdump-0494 [31] ex_dump_operand       : cbd9bb8c Integer 
>> 0000000000000080
>> <4>  exdump-0474 [31] ex_dump_operand       : cbf092e8 Namespace 
>> Node:  0  AC__ Device       cbf092e8 06
>> <4>  exdump-0806 [31] ex_dump_operands      : ************* Operand 
>> Stack dump from dswexec(426), after ex_resolve_operands
>> <4>  evmisc-0138 [32] ev_queue_notify_reques: Dispatching Notify(80) 
>> on node cbf092e8
>> <4>  evmisc-0146 [32] ev_queue_notify_reques: Notify value: 0x80 
>> **Device Specific**
>> <4>  evmisc-0208 [32] ev_queue_notify_reques: No notify handler for 
>> Notify(AC__, 80) node cbf092e8
>>
>>
>>
>> Why there is string "No notify handler for Notify(AC__, 80) .... ???
>>
>> Another notify (Notify (\_PR.CPU0, 0x80)) works fine!
>>
>> Why there is "AC__" not "AC" ?
>>
>> Thanks!
>>
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