linux-kernel - Re: [PATCH 3/4] platform/x86: thinkpad_acpi: Support for system debug info hotkey

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Date: Mon, 08 Apr 2024 10:56:54 -0400
From: "Mark Pearson" <mpearson-lenovo@...ebb.ca>
To: "Hans de Goede" <hdegoede@...hat.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 "Henrique de Moraes Holschuh" <hmh@....eng.br>, dmitry.torokhov@...il.com,
 ibm-acpi-devel@...ts.sourceforge.net,
 "platform-driver-x86@...r.kernel.org" <platform-driver-x86@...r.kernel.org>,
 linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
 "Nitin Joshi1" <njoshi1@...ovo.com>, "Vishnu Sankar" <vsankar@...ovo.com>,
 "Peter Hutterer" <peter.hutterer@...hat.com>
Subject: Re: [PATCH 3/4] platform/x86: thinkpad_acpi: Support for system debug info
 hotkey

Thanks Hans

On Mon, Apr 8, 2024, at 9:11 AM, Hans de Goede wrote:
> Hi,
>
> On 3/24/24 10:08 PM, Mark Pearson wrote:
>> New Lenovo platforms are adding the FN+N key to generate system debug
>> details that support can use for collecting important details on any
>> customer cases for Windows.
>> Add the infrastructure so we can do the same on Linux by generating a
>> SYS_DEBUG_INFO keycode to userspace.
>> 
>> Signed-off-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
>> Signed-off-by: Nitin Joshi <njoshi1@...ovo.com>
>> ---
>>  drivers/platform/x86/thinkpad_acpi.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>> 
>> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
>> index 2bbb32c898e9..854ce971bde2 100644
>> --- a/drivers/platform/x86/thinkpad_acpi.c
>> +++ b/drivers/platform/x86/thinkpad_acpi.c
>> @@ -1787,6 +1787,7 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
>>  	TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER,
>>  	TP_ACPI_HOTKEYSCAN_PICKUP_PHONE,
>>  	TP_ACPI_HOTKEYSCAN_HANGUP_PHONE,
>> +	TP_ACPI_HOTKEYSCAN_SYS_DEBUG_INFO = 81,
>>  
>>  	/* Hotkey keymap size */
>>  	TPACPI_HOTKEY_MAP_LEN
>> @@ -3337,6 +3338,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
>>  		KEY_NOTIFICATION_CENTER,	/* Notification Center */
>>  		KEY_PICKUP_PHONE,		/* Answer incoming call */
>>  		KEY_HANGUP_PHONE,		/* Decline incoming call */
>> +		KEY_UNKNOWN,			/* AMT Toggle (event), 0x31A */
>> +		KEY_UNKNOWN, KEY_UNKNOWN,
>> +		KEY_SYS_DEBUG_INFO,             /* System debug info, 0x31D */
>>  		},
>>  	};
>>  
>
> Looking at the next patch 0x131c is TP_HKEY_EV_DOUBLETAP_TOGGLE and 0x131a is
> TP_HKEY_EV_AMT_TOGGLE based on this please change this to:
>
>   		KEY_NOTIFICATION_CENTER,	/* Notification Center */
>   		KEY_PICKUP_PHONE,		/* Answer incoming call */
>   		KEY_HANGUP_PHONE,		/* Decline incoming call */
> 		KEY_UNKNOWN,			/* TP_HKEY_EV_AMT_TOGGLE handled in driver, 0x31a */
> 		KEY_UNKNOWN,			/* ?, 0X31b */
> 		KEY_UNKNOWN,			/* TP_HKEY_EV_DOUBLETAP_TOGGLE handled in driver, 0x31c */
> 		KEY_SYS_DEBUG_INFO,             /* System debug info, 0x31d */
> 		},
>
Will do

Mark