linux-kernel - Re: [PATCH 1/3] toshiba_acpi: Add Hotkey Event Type function and definitions

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Date:	Wed, 18 Mar 2015 20:56:12 -0700
From:	Darren Hart <dvhart@...radead.org>
To:	Azael Avalos <coproscefalo@...il.com>
Cc:	"platform-driver-x86@...r.kernel.org" 
	<platform-driver-x86@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] toshiba_acpi: Add Hotkey Event Type function and
 definitions

On Fri, Mar 06, 2015 at 11:42:50AM -0700, Azael Avalos wrote:
> Hi Darren,
> 
> 2015-03-06 11:21 GMT-07:00 Darren Hart <dvhart@...radead.org>:
> > On Thu, Feb 26, 2015 at 10:57:12AM -0700, Azael Avalos wrote:
> >
> > Hi Azael,
> >
> > I'm pretty behind on this one, apologies.
> >
> 
> No wories, we still have plenty of time for 4.1 ;-)
> I simply wanted to send these early to get as much tests as possible.
> 
> >> This patch adds support to query the "Hotkey Event Type" the system
> >> supports.
> >>
> >> There are two main event types (so far), 0x10 and 0x11, with the
> >> first beign all those laptops that have the old keyboard layout, and
> >
> > being
> >
> >> the latter all those new laptops with the new keyboard layout.
> >>
> >
> > Some concern about this binary "new" and "old". What happens in 2 years when
> > they decide to break^W change our keyboards again?
> 
> Well, a new key mapping will need to be added, and hopefully
> a new value (other than 0x10 and 0x11) to identify the "newer"
> layout, only time will tell.

OK, anything else is just idle speculation I guess. So just fix the typos and
resend please.

--
Darren

> 
> >
> >> Signed-off-by: Azael Avalos <coproscefalo@...il.com>
> >> ---
> >>  drivers/platform/x86/toshiba_acpi.c | 26 ++++++++++++++++++++++++++
> >>  1 file changed, 26 insertions(+)
> >>
> >> diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
> >> index dbcb7a8..e6aa8f9 100644
> >> --- a/drivers/platform/x86/toshiba_acpi.c
> >> +++ b/drivers/platform/x86/toshiba_acpi.c
> >> @@ -116,6 +116,7 @@ MODULE_LICENSE("GPL");
> >>  #define HCI_KBD_ILLUMINATION         0x0095
> >>  #define HCI_ECO_MODE                 0x0097
> >>  #define HCI_ACCELEROMETER2           0x00a6
> >> +#define HCI_HOTKEY_EVENT_TYPE                0xc000
> >>  #define SCI_PANEL_POWER_ON           0x010d
> >>  #define SCI_ILLUMINATION             0x014e
> >>  #define SCI_USB_SLEEP_CHARGE         0x0150
> >> @@ -127,8 +128,11 @@ MODULE_LICENSE("GPL");
> >>
> >>  /* field definitions */
> >>  #define HCI_ACCEL_MASK                       0x7fff
> >> +#define HCI_HOTKEY_EVENT_NORMAL              0x10
> >> +#define HCI_HOTKEY_EVENT_SPECIAL     0x11
> >
> > NORMAL and SPECIAL? Hrm... what comes after special? EXTRASPECIAL? ;-)
> 
> Hehe, well, those can be changed to something like
> HCI_HOTKEY_EVENT_TYPE{1, 2}
> I just named them after the "special events" feature, as the value
> returned from HCI_HOTKEY_EVENT_TYPE is related to.
> 
> >
> > Or am I not looking at this right? Is there reason to expect these two to be
> > sufficient?
> 
> We can use the SCI_KBD_FUNCTION_KEYS too, all newer laptops
> that now come with the new layout support this feature.
> I can test for its presence and also for the value returned by
> HCI_HOTKEY_EVENT_TYPE.
> 
> >
> >>  #define HCI_HOTKEY_DISABLE           0x0b
> >>  #define HCI_HOTKEY_ENABLE            0x09
> >> +#define HCI_HOTKEY_ENABLE_SPECIAL    0x10
> >>  #define HCI_LCD_BRIGHTNESS_BITS              3
> >>  #define HCI_LCD_BRIGHTNESS_SHIFT     (16-HCI_LCD_BRIGHTNESS_BITS)
> >>  #define HCI_LCD_BRIGHTNESS_LEVELS    (1 << HCI_LCD_BRIGHTNESS_BITS)
> >> @@ -1149,6 +1153,28 @@ static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
> >>       return 0;
> >>  }
> >>
> >> +/* Hotkey event type */
> >> +static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
> >> +                                      u32 *hotkey_event_type)
> >> +{
> >> +     u32 val1 = 0x03;
> >> +     u32 val2 = 0;
> >> +     u32 result;
> >> +
> >> +     result = hci_read2(dev, HCI_HOTKEY_EVENT_TYPE, &val1, &val2);
> >> +     if (result == TOS_FAILURE) {
> >> +             pr_err("ACPI callto get Hotkey Event type failed\n");
> >
> > call to
> >
> 
> Caught this one after I sent the patches :-P
> 
> > Thanks,
> >
> > --
> > Darren Hart
> > Intel Open Source Technology Center
> 
> 
> Cheers
> Azael
> 
> 
> -- 
> -- El mundo apesta y vosotros apestais tambien --
> 

-- 
Darren Hart
Intel Open Source Technology Center
--
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