linux-kernel - Re: [PATCH v3] platform/x86: ideapad-laptop: added support for some new buttons

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Message-ID: <a619a8bf-3d71-5b22-3ced-b0f9de95cc77@linux.intel.com>
Date: Fri, 28 Mar 2025 14:51:09 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Gašper Nemgar <gasper.nemgar@...il.com>, 
    Hans de Goede <hdegoede@...hat.com>
cc: ikepanhc@...il.com, LKML <linux-kernel@...r.kernel.org>, 
    platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v3] platform/x86: ideapad-laptop: added support for some
 new buttons

On Fri, 28 Mar 2025, Gašper Nemgar wrote:

> Added entries to unsuported wmi codes in ideapad_keymap[]
> and one check in wmi_nofify in order to get wmi code 0x13d to trigger platform_profile_cycle
> 
> Signed-off-by: Gašper Nemgar <gasper.nemgar@...il.com>"
> ---
> Changes in v3:
>  - Minor changes
> Changes in v2:
>  - Added more codes that trigger with key combos (Fn+N, Fn+M, ...)
>  - Added performence toggle in wmi_notify()
> Changes in v1:
>  - Added codes for buttons on laptop(performance, star, ...)
> ---
>  drivers/platform/x86/ideapad-laptop.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
> index 17a09b778..8f8764554 100644
> --- a/drivers/platform/x86/ideapad-laptop.c
> +++ b/drivers/platform/x86/ideapad-laptop.c
> @@ -1294,6 +1294,16 @@ static const struct key_entry ideapad_keymap[] = {
>  	/* Specific to some newer models */
>  	{ KE_KEY,	0x3e | IDEAPAD_WMI_KEY, { KEY_MICMUTE } },
>  	{ KE_KEY,	0x3f | IDEAPAD_WMI_KEY, { KEY_RFKILL } },
> +	/* Star- (User Asignable Key) */
> +	{ KE_KEY,	0x44 | IDEAPAD_WMI_KEY, { KEY_PROG1 } },
> +	/* Eye */
> +	{ KE_KEY,	0x45 | IDEAPAD_WMI_KEY, { KEY_PROG3 } },
> +	/* Performance toggle also Fn+Q, handled inside ideapad_wmi_notify() */
> +	{ KE_KEY,	0x3d | IDEAPAD_WMI_KEY, { KEY_PROG4 } },

This doesn't fully address Hans' comment, please reread his comment 
carefully:

https://lore.kernel.org/all/c487c00c-2900-42cf-b83b-08c5e1b866e1@redhat.com/

> +	/* shift + prtsc */
> +	{ KE_KEY,   0x2d | IDEAPAD_WMI_KEY, { KEY_CUT } },
> +	{ KE_KEY,   0x29 | IDEAPAD_WMI_KEY, { KEY_TOUCHPAD_TOGGLE } },
> +	{ KE_KEY,   0x2a | IDEAPAD_WMI_KEY, { KEY_ROOT_MENU } },
>  
>  	{ KE_END },
>  };
> @@ -2080,6 +2090,14 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data)
>  		dev_dbg(&wdev->dev, "WMI fn-key event: 0x%llx\n",
>  			data->integer.value);
>  
> +		/* performance button triggered by 0x3d  */
> +		if (data->integer.value == 0x3d) {
> +			if (priv->dytc) {
> +				platform_profile_cycle();
> +				break;
> +			}
> +		}
> +
>  		/* 0x02 FnLock, 0x03 Esc */
>  		if (data->integer.value == 0x02 || data->integer.value == 0x03)
>  			ideapad_fn_lock_led_notify(priv, data->integer.value == 0x02);
> 

-- 
 i.