what about the sony_acpi driver?

what about the sony_acpi driver?

[Stefan Seyfried]

Hi,

there has been this discussion some time ago when Stelian Pop submitted
his sony_acpi driver for inclusion. Back then it was IIRC dismissed with
the mention of a "soon to come" universal all-curing hotkey and an even
better video/LCD driver.
When will these come? Or did i just not look hard enough?
My problem is: i am now plagued with a SONY (yeah, i was naughty, so i
got the machine nobody wanted ;-) VGN-FS115B which has a _really_ bright
backlight. It is in fact so bright that i fear for my retinas, so i have
to turn it down (this also brings the battery life from less than 2 hours
to about 3 1/2 hours :-). To do this, i need the sony_acpi driver, or boot
Windows.

So the question is: will the sony_acpi driver be included (when?) or will
the omnipotent generic driver work soon?
-- 
Stefan Seyfried



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Re: what about the sony_acpi driver?

[Yu, Luming]

On 2005.06.06 13:09:52 +0200, Stefan Seyfried wrote:
> Hi,
> 
> there has been this discussion some time ago when Stelian Pop submitted
> his sony_acpi driver for inclusion. Back then it was IIRC dismissed with
> the mention of a "soon to come" universal all-curing hotkey and an even
> better video/LCD driver.
The generic hotkey driver has been in mm tree for a while. But you need to configure it for your laptop. 

> When will these come? Or did i just not look hard enough?
> My problem is: i am now plagued with a SONY (yeah, i was naughty, so i
> got the machine nobody wanted ;-) VGN-FS115B which has a _really_ bright
> backlight. It is in fact so bright that i fear for my retinas, so i have
> to turn it down (this also brings the battery life from less than 2 hours
> to about 3 1/2 hours :-). To do this, i need the sony_acpi driver, or boot
> Windows.
Please send me output of acpidmp, and let me see how to configure generic hotkeydriver for your model?

> 
> So the question is: will the sony_acpi driver be included (when?) or will
> the omnipotent generic driver work soon?
It is hard to manage if each brand or model has a specific hotkey driver in kernel.

> -- 
> Stefan Seyfried
> 
> 
> 
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Re: what about the sony_acpi driver?

[Stefan Seyfried]

On Mon, Jun 06, 2005 at 09:29:11PM +0800, Yu, Luming wrote:

> The generic hotkey driver has been in mm tree for a while. But you need to configure it for your laptop. 

Ok, so i did not look hard enough or i was blinded by the super-bright
backlight ;-)

> > My problem is: i am now plagued with a SONY (yeah, i was naughty, so i
> > got the machine nobody wanted ;-) VGN-FS115B which has a _really_ bright
> > backlight. It is in fact so bright that i fear for my retinas, so i have
> > to turn it down (this also brings the battery life from less than 2 hours
> > to about 3 1/2 hours :-). To do this, i need the sony_acpi driver, or boot
> > Windows.
> Please send me output of acpidmp, and let me see how to configure generic hotkeydriver for your model?

There are no ACPI hotkeys on this machine. It is SONY cr*p :-( Do you still
want the acpidmp output?

> > So the question is: will the sony_acpi driver be included (when?) or will
> > the omnipotent generic driver work soon?

> It is hard to manage if each brand or model has a specific hotkey driver in kernel.

yes, but those specific drivers work. Today. And they do even more than
hotkeys (which are non-existent on this machine), e.g. adjusting LCD backlight
or switching the ASUS custom LEDs.
-- 
Stefan Seyfried


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Re: what about the sony_acpi driver?

[Yu, Luming]

On 2005.06.06 17:12:35 +0200, Stefan Seyfried wrote:
> On Mon, Jun 06, 2005 at 09:29:11PM +0800, Yu, Luming wrote:
> 
> > The generic hotkey driver has been in mm tree for a while. But you need to configure it for your laptop. 
> 
> Ok, so i did not look hard enough or i was blinded by the super-bright
> backlight ;-)
I admit the so-called generic-acpi-hotkey-driver is hard to use. :-(
And I'm trying to make it easy to use. 
> 
> > > My problem is: i am now plagued with a SONY (yeah, i was naughty, so i
> > > got the machine nobody wanted ;-) VGN-FS115B which has a _really_ bright
> > > backlight. It is in fact so bright that i fear for my retinas, so i have
> > > to turn it down (this also brings the battery life from less than 2 hours
> > > to about 3 1/2 hours :-). To do this, i need the sony_acpi driver, or boot
> > > Windows.
> > Please send me output of acpidmp, and let me see how to configure generic hotkeydriver for your model?
> 
> There are no ACPI hotkeys on this machine. It is SONY cr*p :-( Do you still
> want the acpidmp output?

Please try tool: acpidm. And send it to me unless you got zero.

> 
> > > So the question is: will the sony_acpi driver be included (when?) or will
> > > the omnipotent generic driver work soon?
> 
> > It is hard to manage if each brand or model has a specific hotkey driver in kernel.
> 
> yes, but those specific drivers work. Today. And they do even more than
> hotkeys (which are non-existent on this machine), e.g. adjusting LCD backlight
> or switching the ASUS custom LEDs.
Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.
> -- 
> Stefan Seyfried

Thanks,
Luming


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Re: what about the sony_acpi driver?

[Matthew Garrett]

On Mon, 2005-06-06 at 23:28 +0800, Yu, Luming wrote:

> Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.

A fairly large number of machines seem to have brightness control
methods that aren't exposed via the acpi video device standard. Can
these still be dealt with?

-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org



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Re: what about the sony_acpi driver?

[Yu, Luming]

On 2005.06.06 16:55:14 +0100, Matthew Garrett wrote:
> On Mon, 2005-06-06 at 23:28 +0800, Yu, Luming wrote:
> 
> > Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.
> 
> A fairly large number of machines seem to have brightness control
> methods that aren't exposed via the acpi video device standard. Can
> these still be dealt with?
If they are ACPI system, I suppose they will rely on ASL method to handle video stuff. Then, I think generic-hotkey-driver can accommodate the quirks.
Please give me some example to prove I'm wrong. (The example should come from ACPI system.) 
Thanks,
Luming
> 
> -- 
> Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org
> 
> 
> 
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Re: what about the sony_acpi driver?

[Stefan Seyfried]

[-- Attachment #1: Type: text/plain, Size: 872 bytes --]

On Mon, Jun 06, 2005 at 11:28:29PM +0800, Yu, Luming wrote:

> I admit the so-called generic-acpi-hotkey-driver is hard to use. :-(
> And I'm trying to make it easy to use. 

Ok, i will try it out on a hotkey-enabled machine (asus)

> Please try tool: acpidm. And send it to me unless you got zero.

attached

> > yes, but those specific drivers work. Today. And they do even more than
> > hotkeys (which are non-existent on this machine), e.g. adjusting LCD backlight
> > or switching the ASUS custom LEDs.
> Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.

Ok. I tried the video driver and got lots of (mostly irritating) information,
could not do anything with it. After compiling and insmod'ing sony_acpi, i
could immediately adjust my brightness ;-)

I am willing to try out all kinds of stuff.
-- 
Stefan Seyfried

[-- Attachment #2: acpidmp.gz --]
[-- Type: application/x-gunzip, Size: 22797 bytes --]

Re: what about the sony_acpi driver?

[Herman Sheremetyev]

Have you tried spicctrl and the sonypi driver?  I was able to get LCD
brightness controls on an older Vaio with those.

-Herman

On Mon, 2005-06-06 at 18:27 +0200, Stefan Seyfried wrote:
> On Mon, Jun 06, 2005 at 11:28:29PM +0800, Yu, Luming wrote:
> 
> > I admit the so-called generic-acpi-hotkey-driver is hard to use. :-(
> > And I'm trying to make it easy to use. 
> 
> Ok, i will try it out on a hotkey-enabled machine (asus)
> 
> > Please try tool: acpidm. And send it to me unless you got zero.
> 
> attached
> 
> > > yes, but those specific drivers work. Today. And they do even more than
> > > hotkeys (which are non-existent on this machine), e.g. adjusting LCD backlight
> > > or switching the ASUS custom LEDs.
> > Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.
> 
> Ok. I tried the video driver and got lots of (mostly irritating) information,
> could not do anything with it. After compiling and insmod'ing sony_acpi, i
> could immediately adjust my brightness ;-)
> 
> I am willing to try out all kinds of stuff.
-- 
Herman Sheremetyev <herman-6MNMYbGzEYJWk0Htik3J/w@public.gmane.org>
n/a



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Re: what about the sony_acpi driver?

[Yu, Luming]

On 2005.06.07 00:27:07 +0800, Stefan Seyfried wrote:
> 
>    On Mon, Jun 06, 2005 at 11:28:29PM +0800, Yu, Luming wrote:
>    > I admit the so-called generic-acpi-hotkey-driver is hard to use. :-(
>    > And I'm trying to make it easy to use.
>    Ok, i will try it out on a hotkey-enabled machine (asus)
>    > Please try tool: acpidm. And send it to me unless you got zero.
>    attached
>    > > yes, but those specific drivers work. Today. And they do even more
>    than
>    > > hotkeys (which are non-existent on this machine), e.g. adjusting
>    LCD backlight
>    > > or switching the ASUS custom LEDs.
>    > Believe me, generic-hotkey-driver and acpi-video-driver can handle
>    these, if this is a acpi system.
>    Ok. I tried the video driver and got lots of (mostly irritating)
>    information,
>    could not do anything with it. After compiling and insmod'ing
>    sony_acpi, i
>    could immediately adjust my brightness ;-)

I went through the DSDT and SSDTs, found that there is a specific ACPI device
: SNC whose _HID is SNY5001. In the scope of this device, there are several
Methods defined but no callers. So, I think sony_acpi.c won't give your ability to control things through real hot-keys. right? If you need to use hotkey on
keyboard to control, you have to try sonypi driver. Because I didn't find any
GPEs related to hot-key methods, which are must-have for acpi-generic-hotkey-driver. I prefer integrate the quirks of sony_acpi.c into generic hotkey driver.


>    I am willing to try out all kinds of stuff.
>    --
>    Stefan Seyfried




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Re: what about the sony_acpi driver?

[Stefan Seyfried]

On Tue, Jun 07, 2005 at 04:01:11PM +0800, Yu, Luming wrote:
 
> I went through the DSDT and SSDTs, found that there is a specific ACPI device
> : SNC whose _HID is SNY5001. In the scope of this device, there are several
> Methods defined but no callers. So, I think sony_acpi.c won't give your
> ability to control things through real hot-keys. right?

exactly, this is what i meant with "No hotkeys, this is sony cr*p", sorry for
not being more clear, but i can "echo 4 > /proc/acpi/sony/brightness" which is 
better than nothing. :-)

> If you need to use
> hotkey on keyboard to control, you have to try sonypi driver. Because I

Sonypi does not work on newer machines (something gets detected, but i get
no events or actions from it)

> didn't find any
> GPEs related to hot-key methods, which are must-have for
> acpi-generic-hotkey-driver.

Yes, there is no hotkey functionality with sony_acpi or with sonypi either.

> I prefer integrate the quirks of sony_acpi.c into
> generic hotkey driver.

I am fine with that, i just had the impression that the generic hotkey and
video drivers are a bit like "vapourware" while the specific ones exist.
I agree that having working generic drivers is best, but people need 
something to work with until they are ready ;-)

Thanks for looking into this.
-- 
Stefan Seyfried


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Re: what about the sony_acpi driver?

[Bruno Ducrot]

On Tue, Jun 07, 2005 at 12:19:31AM +0800, Yu, Luming wrote:
> On 2005.06.06 16:55:14 +0100, Matthew Garrett wrote:
> > On Mon, 2005-06-06 at 23:28 +0800, Yu, Luming wrote:
> > 
> > > Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.
> > 
> > A fairly large number of machines seem to have brightness control
> > methods that aren't exposed via the acpi video device standard. Can
> > these still be dealt with?
> If they are ACPI system, I suppose they will rely on ASL method to handle video stuff. Then, I think generic-hotkey-driver can accommodate the quirks.
> Please give me some example to prove I'm wrong. (The example should come from ACPI system.) 

On toshiba 3000 (and actually a lot of Compal laptops) LCD brightness is
handled via a register in the EC space (sometimes the node is called BLVL,
is at 0xb9, first 4 bits).

No ACPI methods (under, say, a video device) handle it, therefore it
is necessary to read/write to it directly in order to control brightness
as its done with the omke kernel module.

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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Re: what about the sony_acpi driver?

[Yu, Luming]

On 2005.06.07 16:08:38 +0200, Bruno Ducrot wrote:
> On Tue, Jun 07, 2005 at 12:19:31AM +0800, Yu, Luming wrote:
> > On 2005.06.06 16:55:14 +0100, Matthew Garrett wrote:
> > > On Mon, 2005-06-06 at 23:28 +0800, Yu, Luming wrote:
> > > 
> > > > Believe me, generic-hotkey-driver and acpi-video-driver can handle these, if this is a acpi system.
> > > 
> > > A fairly large number of machines seem to have brightness control
> > > methods that aren't exposed via the acpi video device standard. Can
> > > these still be dealt with?
> > If they are ACPI system, I suppose they will rely on ASL method to handle video stuff. Then, I think generic-hotkey-driver can accommodate the quirks.
> > Please give me some example to prove I'm wrong. (The example should come from ACPI system.) 
> 
> On toshiba 3000 (and actually a lot of Compal laptops) LCD brightness is
> handled via a register in the EC space (sometimes the node is called BLVL,
> is at 0xb9, first 4 bits).
> 
> No ACPI methods (under, say, a video device) handle it, therefore it
> is necessary to read/write to it directly in order to control brightness
> as its done with the omke kernel module.

Thanks for this info. If there don't have AML-methods and GPEs related to hotkey features on a specific box, then
I think generic-hotkey-driver cannot help.

> 
> -- 
> Bruno Ducrot
> 


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