Re: [PATCH 4/6] thinkpad_acpi: Add support for more adaptive kbd buttons

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On Thu, 2015-02-19 at 21:35 -0800, Darren Hart wrote:
> On Wed, Feb 18, 2015 at 09:53:48PM +0100, Bastien Nocera wrote:
> > This commit adds new elements to the ThinkPad keymaps, and
> > will send key events for keys for which an input.h declaration
> > exists.
> > 
> > Signed-off-by: Bastien Nocera <hadess@xxxxxxxxxx>
> > ---
> >  drivers/platform/x86/thinkpad_acpi.c | 80 +++++++++++++++++++++++++++++++++++-
> >  1 file changed, 79 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> > index 562d958..a47a56a 100644
> > --- a/drivers/platform/x86/thinkpad_acpi.c
> > +++ b/drivers/platform/x86/thinkpad_acpi.c
> > @@ -1911,6 +1911,27 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
> >  	TP_ACPI_HOTKEYSCAN_UNK7,
> >  	TP_ACPI_HOTKEYSCAN_UNK8,
> >  
> > +	TP_ACPI_HOTKEYSCAN_MUTE2,
> > +	TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO,
> > +	TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL,
> > +	TP_ACPI_HOTKEYSCAN_CLOUD,
> > +	TP_ACPI_HOTKEYSCAN_UNK9,
> > +	TP_ACPI_HOTKEYSCAN_VOICE,
> > +	TP_ACPI_HOTKEYSCAN_UNK10,
> > +	TP_ACPI_HOTKEYSCAN_GESTURES,
> > +	TP_ACPI_HOTKEYSCAN_UNK11,
> > +	TP_ACPI_HOTKEYSCAN_UNK12,
> > +	TP_ACPI_HOTKEYSCAN_UNK13,
> > +	TP_ACPI_HOTKEYSCAN_CONFIG,
> > +	TP_ACPI_HOTKEYSCAN_NEW_TAB,
> > +	TP_ACPI_HOTKEYSCAN_RELOAD,
> > +	TP_ACPI_HOTKEYSCAN_BACK,
> > +	TP_ACPI_HOTKEYSCAN_MIC_DOWN,
> > +	TP_ACPI_HOTKEYSCAN_MIC_UP,
> > +	TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION,
> > +	TP_ACPI_HOTKEYSCAN_CAMERA_MODE,
> > +	TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY,
> > +
> >  	/* Hotkey keymap size */
> >  	TPACPI_HOTKEY_MAP_LEN
> >  };
> > @@ -3171,6 +3192,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
> >  		/* (assignments unknown, please report if found) */
> >  		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> >  		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> > +
> > +		/* no assignments, only used for Adaptive keyboards */
> 
> Sentence formatting please.

Done.

> > +		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> > +		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> > +		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> > +		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> > +		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
> >  		},
> >  
> >  	/* Generic keymap for Lenovo ThinkPads */
> > @@ -3227,6 +3255,33 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
> >  
> >  		/* Extra keys in use since the X240 / T440 / T540 */
> >  		KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE,
> > +
> > +		/* Adaptive keyboard keycodes for Carbon X1 2014,
> > +		 * The first item in this list is the Mute button
> > +		 * which is emitted with 0x103 through
> > +		 * adaptive_keyboard_hotkey_notify_hotkey ()
> > +		 * when the sound symbol is held
> > +		 * We'll need to offset those by 0x20 */
> 
> Please follow CodingStyle with /* and */ on their own lines. Also, wrapping is
> strange, as is capitalization, etc.  Please terminate sentences with periods,
> and only capitalize the beginning of sentences or proper nouns.

Done.

> > +		KEY_RESERVED,        /* Mute held, 0x103 */
> > +		KEY_BRIGHTNESS_MIN,  /* Backlight off */
> > +		KEY_RESERVED,        /* Clipping tool */
> > +		KEY_RESERVED,        /* Cloud */
> > +		KEY_RESERVED,
> > +		KEY_VOICECOMMAND,    /* Voice */
> > +		KEY_RESERVED,
> > +		KEY_RESERVED,        /* Gestures */
> > +		KEY_RESERVED,
> > +		KEY_RESERVED,
> > +		KEY_RESERVED,
> > +		KEY_CONFIG,          /* Settings */
> > +		KEY_RESERVED,        /* New tab */
> > +		KEY_REFRESH,         /* Reload */
> > +		KEY_BACK,            /* Back */
> > +		KEY_RESERVED,        /* Microphone down */
> > +		KEY_RESERVED,        /* Microphone up */
> > +		KEY_RESERVED,        /* Microphone cancellation */
> > +		KEY_RESERVED,        /* Camera mode */
> > +		KEY_RESERVED,        /* Rotate display, 0x116 */
> >  		},
> >  	};
> >  
> > @@ -3526,6 +3581,8 @@ const int adaptive_keyboard_modes[] = {
> >  
> >  #define DFR_CHANGE_ROW			0x101
> >  #define DFR_SHOW_QUICKVIEW_ROW		0x102
> > +#define FIRST_ADAPTIVE_KEY		0x103
> > +#define ADAPTIVE_KEY_OFFSET		0x020
> >  
> >  /* press Fn key a while second, it will switch to Function Mode. Then
> >   * release Fn key, previous mode be restored.
> > @@ -3581,6 +3638,7 @@ static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
> >  {
> >  	u32 current_mode = 0;
> >  	int new_mode = 0;
> > +	int keycode;
> >  
> >  	switch (scancode) {
> >  	case DFR_CHANGE_ROW:
> > @@ -3613,7 +3671,27 @@ static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
> >  		return true;
> >  
> >  	default:
> > -		return false;
> > +		if (scancode < FIRST_ADAPTIVE_KEY ||
> > +			scancode > FIRST_ADAPTIVE_KEY +
> > +				TPACPI_HOTKEY_MAP_LEN -
> > +				ADAPTIVE_KEY_OFFSET) {
> > +			pr_info("Unhandled adaptive keyboard key: 0x%x\n",
> > +					scancode);
> > +			return false;
> > +		}
> > +		keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + ADAPTIVE_KEY_OFFSET];
> 
> Please be consistent with your line wrapping. The if block above wraps early and
> is a rather difficult to scan, while the keycode index goes well beyond 80
> chars.

Done.


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