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* [PATCH] Input:Optimize events_per_packet count calculation
From: anshul.g @ 2014-12-10 11:10 UTC (permalink / raw)
  To: dmitry.torokhov, dtor, linux-input; +Cc: aksgarg1989, anshul.g

From: Anshul Garg <anshul.g@samsung.com>

This patch avoids unnecessary operations while estimating events per
packet for an input device when event type is not set.

Signed-off-by: Anshul Garg <anshul.g@samsung.com>
---
 drivers/input/input.c |   22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 29ca0bb..8172296 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1973,18 +1973,22 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
 
 	events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
 
-	for (i = 0; i < ABS_CNT; i++) {
-		if (test_bit(i, dev->absbit)) {
-			if (input_is_mt_axis(i))
-				events += mt_slots;
-			else
-				events++;
+	if (test_bit(EV_ABS, dev->evit)) {
+		for (i = 0; i < ABS_CNT; i++) {
+			if (test_bit(i, dev->absbit)) {
+				if (input_is_mt_axis(i))
+					events += mt_slots;
+				else
+					events++;
+			}
 		}
 	}
 
-	for (i = 0; i < REL_CNT; i++)
-		if (test_bit(i, dev->relbit))
-			events++;
+	if (test_bit(EV_REL, dev->evit)) {
+		for (i = 0; i < REL_CNT; i++)
+			if (test_bit(i, dev->relbit))
+				events++;
+	}
 
 	/* Make room for KEY and MSC events */
 	events += 7;
-- 
1.7.9.5


^ permalink raw reply related

* Re: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware update function support
From: Jeremiah Mahler @ 2014-12-10 11:06 UTC (permalink / raw)
  To: Dudley Du; +Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org
In-Reply-To: <BN1PR06MB0708DF8CE49D491D55E4F00D1620@BN1PR06MB070.namprd06.prod.outlook.com>

Dudley,

On Wed, Dec 10, 2014 at 09:19:19AM +0000, Dudley Du wrote:
> Jeremiah,
> 
> Thank you very much for the solution. I will aplly it to my local patches immediately.
> 
> Do you think it is required to re-submit the patch set right now?
> 

I think you could if you want to or you could wait to see if any others
provide more feedback.  It is up to you.

> Thanks,
> Dudley
> 
> > -----Original Message-----
> > From: linux-input-owner@vger.kernel.org
> > [mailto:linux-input-owner@vger.kernel.org] On Behalf Of Jeremiah Mahler
> > Sent: 2014?12?10? 16:55
> > To: Dudley Du
> > Cc: linux-kernel@vger.kernel.org; linux-input@vger.kernel.org
> > Subject: Re: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware
> > update function support
> >
> > Dudley,
[...]

-- 
- Jeremiah Mahler

^ permalink raw reply

* Re: [PATCH v2 2/3] HID: wacom: Initialize MT slots for generic devices at post_parse_hid
From: Jiri Kosina @ 2014-12-10  9:49 UTC (permalink / raw)
  To: Benjamin Tissoires; +Cc: Jason Gerecke, linux-input, Ping Cheng
In-Reply-To: <CAN+gG=HuSs0Bpe7LaHZC6rqWTTaNQ_4_hrOMm+3Sv1Z80vB5nQ@mail.gmail.com>

On Tue, 9 Dec 2014, Benjamin Tissoires wrote:

> Well, I wanted to make some cosmetic changes in 3/3 and double check 
> that it was generic enough, but I've been sidetracked, and today I have 
> to keep my sick daughter. Please apply my rev-by on this one only. Feel 
> free to apply 3/3 however - if you can dedicate a little bit of time to 
> check it - (without my rev-by then), it's not that it will prevent us to 
> change it later if we have to.

Alright, thanks. I am now applying 2/3. If I have time to review 3/3 today 
or tomorrow (not guaranteed), I might be applying it for this merge window 
as well.

Otherwise it'll be processed in the next cycle.

Thanks,

-- 
Jiri Kosina
SUSE Labs

^ permalink raw reply

* RE: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware update function support
From: Dudley Du @ 2014-12-10  9:19 UTC (permalink / raw)
  To: Jeremiah Mahler; +Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org
In-Reply-To: <20141210085455.GA7174@hudson.localdomain>

Jeremiah,

Thank you very much for the solution. I will aplly it to my local patches immediately.

Do you think it is required to re-submit the patch set right now?

Thanks,
Dudley

> -----Original Message-----
> From: linux-input-owner@vger.kernel.org
> [mailto:linux-input-owner@vger.kernel.org] On Behalf Of Jeremiah Mahler
> Sent: 2014?12?10? 16:55
> To: Dudley Du
> Cc: linux-kernel@vger.kernel.org; linux-input@vger.kernel.org
> Subject: Re: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware
> update function support
>
> Dudley,
>
> On Tue, Dec 09, 2014 at 07:33:03PM -0800, Jeremiah Mahler wrote:
> > Dudley,
> >
> > On Tue, Dec 09, 2014 at 05:11:41PM +0800, Dudley Du wrote:
> > > Add firmware image update function supported for gen5 trackpad device,
> > > it can be used through sysfs update_fw interface.
> > > TEST=test on Chromebooks.
> > >
> > > Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
> > > ---
> > >  drivers/input/mouse/Kconfig      |   2 +-
> > >  drivers/input/mouse/cyapa_gen5.c | 290
> +++++++++++++++++++++++++++++++++++++++
> > >  2 files changed, 291 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
> > > index d8b46b0..63e8b40 100644
> > > --- a/drivers/input/mouse/Kconfig
> > > +++ b/drivers/input/mouse/Kconfig
> > > @@ -205,7 +205,7 @@ config MOUSE_BCM5974
> > >
> > >  config MOUSE_CYAPA
> > >  tristate "Cypress APA I2C Trackpad support"
> > > -depends on I2C
> > > +depends on I2C && CRC_ITU_T
> If this line is instead changed to:
>
> +  depends on I2C
> +  select CRC_ITU_T
>
> It will upgrade correctly during make oldconfig without removing
> MOUSE_CYAPA.
>
> And it looks like several other Kconfig files do it this way already.
>
>   linux-next$ grep -r CRC_ITU_T $(find ./ -name Kconfig)
>
> > >  help
> > >    This driver adds support for Cypress All Points Addressable (APA)
> > >    I2C Trackpads, including the ones used in 2012 Samsung Chromebooks.
> > > diff --git a/drivers/input/mouse/cyapa_gen5.c
> b/drivers/input/mouse/cyapa_gen5.c
> >
> > My initial config had MOUSE_CYAPA=m and CRC_ITU_T=n.
> > I did a 'make oldconfig', no questions were asked, but it removed
> > MOUSE_CYAPA since CRC_ITU_T wasn't enabled.  Since the cyapa modules
> > were removed the touchpad no longer works.  Not a very good upgrade path :-(
> > To fix this I have to manually enable MOUSE_CYAPA and CRC_ITU_T to get
> > it working again.
> >
> > [...]
> >
> > --
> > - Jeremiah Mahler
>
> --
> - Jeremiah Mahler
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message.

^ permalink raw reply

* Re: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware update function support
From: Jeremiah Mahler @ 2014-12-10  8:54 UTC (permalink / raw)
  To: Dudley Du; +Cc: linux-kernel, linux-input
In-Reply-To: <20141210033303.GA4173@hudson.localdomain>

Dudley,

On Tue, Dec 09, 2014 at 07:33:03PM -0800, Jeremiah Mahler wrote:
> Dudley,
> 
> On Tue, Dec 09, 2014 at 05:11:41PM +0800, Dudley Du wrote:
> > Add firmware image update function supported for gen5 trackpad device,
> > it can be used through sysfs update_fw interface.
> > TEST=test on Chromebooks.
> > 
> > Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
> > ---
> >  drivers/input/mouse/Kconfig      |   2 +-
> >  drivers/input/mouse/cyapa_gen5.c | 290 +++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 291 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
> > index d8b46b0..63e8b40 100644
> > --- a/drivers/input/mouse/Kconfig
> > +++ b/drivers/input/mouse/Kconfig
> > @@ -205,7 +205,7 @@ config MOUSE_BCM5974
> >  
> >  config MOUSE_CYAPA
> >  	tristate "Cypress APA I2C Trackpad support"
> > -	depends on I2C
> > +	depends on I2C && CRC_ITU_T
If this line is instead changed to:

+  depends on I2C
+  select CRC_ITU_T

It will upgrade correctly during make oldconfig without removing
MOUSE_CYAPA.

And it looks like several other Kconfig files do it this way already.

  linux-next$ grep -r CRC_ITU_T $(find ./ -name Kconfig)

> >  	help
> >  	  This driver adds support for Cypress All Points Addressable (APA)
> >  	  I2C Trackpads, including the ones used in 2012 Samsung Chromebooks.
> > diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
> 
> My initial config had MOUSE_CYAPA=m and CRC_ITU_T=n.
> I did a 'make oldconfig', no questions were asked, but it removed
> MOUSE_CYAPA since CRC_ITU_T wasn't enabled.  Since the cyapa modules
> were removed the touchpad no longer works.  Not a very good upgrade path :-(
> To fix this I have to manually enable MOUSE_CYAPA and CRC_ITU_T to get
> it working again.
> 
> [...]
> 
> -- 
> - Jeremiah Mahler

-- 
- Jeremiah Mahler

^ permalink raw reply

* RE: [PATCH v13 00/12] input: cyapa: instruction of cyapa patches
From: Dudley Du @ 2014-12-10  5:10 UTC (permalink / raw)
  To: Jeremiah Mahler
  Cc: dmitry.torokhov@gmail.com, rydberg@euromail.se, bleung@google.com,
	David Solda, linux-input@vger.kernel.org,
	linux-kernel@vger.kernel.org
In-Reply-To: <20141210041018.GD4173@hudson.localdomain>

Jeremiah,

Thank you very much for your review, comments and test.
I will correct the spelling issues in next submit version.

Thanks,
Dudley

> -----Original Message-----
> From: linux-input-owner@vger.kernel.org
> [mailto:linux-input-owner@vger.kernel.org] On Behalf Of Jeremiah Mahler
> Sent: 2014?12?10? 12:10
> To: Dudley Du
> Cc: dmitry.torokhov@gmail.com; rydberg@euromail.se; bleung@google.com;
> David Solda; linux-input@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v13 00/12] input: cyapa: instruction of cyapa patches
>
> Dudley, all,
>
> On Tue, Dec 09, 2014 at 05:11:32PM +0800, Dudley Du wrote:
> > V13 patches have below updates, details of other updates see history list:
> > 1) Remove all debugfs interface, including read_fw and raw_data interfaces.
> > 2) This patches are made based linux next-20141208.
> >
> [...]
>
> I tested this patch set on an Acer C720 and other than the minor
> problems I pointed out in other emails (CONFIG_CYAPA, spelling) it seems
> to work fine and there are no obvious problems.
>
> Reviewed-by: Jeremiah Mahler <jmmahler@gmail.com>
>
> --
> - Jeremiah Mahler
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message.

^ permalink raw reply

* Re: [PATCH v13 00/12] input: cyapa: instruction of cyapa patches
From: Jeremiah Mahler @ 2014-12-10  4:10 UTC (permalink / raw)
  To: Dudley Du
  Cc: dmitry.torokhov, rydberg, bleung, dso, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Dudley, all,

On Tue, Dec 09, 2014 at 05:11:32PM +0800, Dudley Du wrote:
> V13 patches have below updates, details of other updates see history list:
> 1) Remove all debugfs interface, including read_fw and raw_data interfaces.
> 2) This patches are made based linux next-20141208.
> 
[...]

I tested this patch set on an Acer C720 and other than the minor
problems I pointed out in other emails (CONFIG_CYAPA, spelling) it seems
to work fine and there are no obvious problems.

Reviewed-by: Jeremiah Mahler <jmmahler@gmail.com>

-- 
- Jeremiah Mahler

^ permalink raw reply

* Re: [PATCH v13 11/12] input: cyapa: add gen5 trackpad device force re-calibrate function support
From: Jeremiah Mahler @ 2014-12-10  4:05 UTC (permalink / raw)
  To: Dudley Du; +Cc: dmitry.torokhov, rydberg, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-12-git-send-email-dudley.dulixin@gmail.com>

Dudley,

On Tue, Dec 09, 2014 at 05:11:43PM +0800, Dudley Du wrote:
> Add force re-calibrate function supported for gen5 trackpad device,
> it can be used through sysfs calibrate interface.
> TEST=test on Chromebooks.
> 
> Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
> ---
>  drivers/input/mouse/cyapa_gen5.c | 65 ++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 65 insertions(+)
> 
> diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
> index 5bebee1..7d96904 100644
> --- a/drivers/input/mouse/cyapa_gen5.c
> +++ b/drivers/input/mouse/cyapa_gen5.c
> @@ -1581,6 +1581,70 @@ static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
>  	return 0;
>  }
>  
> +static int cyapa_gen5_calibrate_pwcs(struct cyapa *cyapa,
> +		u8 calibrate_sensing_mode_type)
> +{
> +	u8 cmd[8];
> +	u8 resp_data[6];
> +	int resp_len;
> +	int error;
> +
> +	/* Try to dump all bufferred data before doing command. */
                       ^^^^^^^^^
					   buffered

[...]

-- 
- Jeremiah Mahler

^ permalink raw reply

* Re: [PATCH v13 10/12] input: cyapa: add gen5 trackpad device read baseline function support
From: Jeremiah Mahler @ 2014-12-10  4:02 UTC (permalink / raw)
  To: Dudley Du; +Cc: dmitry.torokhov, rydberg, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-11-git-send-email-dudley.dulixin@gmail.com>

Dudley,

On Tue, Dec 09, 2014 at 05:11:42PM +0800, Dudley Du wrote:
> Add read baseline function supported for gen5 trackpad device,
> it can be used through sysfs baseline interface.
> TEST=test on Chromebooks.
> 
> Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
> ---
[...]
>  	return 0;
>  }
>  
> +static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
> +{
> +	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 };
> +	u8 resp_data[6];
> +	int resp_len;
> +	int error;
> +
> +	/* Try to dump all bufferred data before doing command. */
                       ^^^^^^^^^
					   buffered

And there are three more below.

> +	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
> +
> +	resp_len = 6;
> +	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
> +			cmd, 7,
> +			resp_data, &resp_len,
> +			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
> +	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04))
> +		return -EINVAL;
> +
> +	/* Try to dump all bufferred data when resuming scanning. */
> +	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
> +
> +	return 0;
> +}
> +
> +static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
> +{
> +	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 };
> +	u8 resp_data[6];
> +	int resp_len;
> +	int error;
> +
> +	/* Try to dump all bufferred data before doing command. */
> +	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
> +
> +	resp_len = 6;
> +	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
> +			cmd, 7,
> +			resp_data, &resp_len,
> +			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
> +	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03))
> +		return -EINVAL;
> +
> +	/* Try to dump all bufferred data when suspending scanning. */
> +	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
> +
> +	return 0;
> +}
> +
[...]

-- 
- Jeremiah Mahler

^ permalink raw reply

* Re: [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware update function support
From: Jeremiah Mahler @ 2014-12-10  3:33 UTC (permalink / raw)
  To: Dudley Du; +Cc: dmitry.torokhov, rydberg, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-10-git-send-email-dudley.dulixin@gmail.com>

Dudley,

On Tue, Dec 09, 2014 at 05:11:41PM +0800, Dudley Du wrote:
> Add firmware image update function supported for gen5 trackpad device,
> it can be used through sysfs update_fw interface.
> TEST=test on Chromebooks.
> 
> Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
> ---
>  drivers/input/mouse/Kconfig      |   2 +-
>  drivers/input/mouse/cyapa_gen5.c | 290 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 291 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
> index d8b46b0..63e8b40 100644
> --- a/drivers/input/mouse/Kconfig
> +++ b/drivers/input/mouse/Kconfig
> @@ -205,7 +205,7 @@ config MOUSE_BCM5974
>  
>  config MOUSE_CYAPA
>  	tristate "Cypress APA I2C Trackpad support"
> -	depends on I2C
> +	depends on I2C && CRC_ITU_T
>  	help
>  	  This driver adds support for Cypress All Points Addressable (APA)
>  	  I2C Trackpads, including the ones used in 2012 Samsung Chromebooks.
> diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c

My initial config had MOUSE_CYAPA=m and CRC_ITU_T=n.
I did a 'make oldconfig', no questions were asked, but it removed
MOUSE_CYAPA since CRC_ITU_T wasn't enabled.  Since the cyapa modules
were removed the touchpad no longer works.  Not a very good upgrade path :-(
To fix this I have to manually enable MOUSE_CYAPA and CRC_ITU_T to get
it working again.

[...]

-- 
- Jeremiah Mahler

^ permalink raw reply

* Re: Supporting U2F over HID on Linux?
From: Andy Lutomirski @ 2014-12-09 20:46 UTC (permalink / raw)
  To: Jiri Kosina
  Cc: systemd Mailing List, Kay Sievers, open list:HID CORE LAYER,
	Benjamin Tissoires
In-Reply-To: <CALCETrVkZxc9G+B9jYYFmiE20VGcnugrB21_MRvjNhDTvP00zQ@mail.gmail.com>

On Mon, Nov 3, 2014 at 12:41 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> On Mon, Nov 3, 2014 at 12:21 PM, Jiri Kosina <jkosina@suse.cz> wrote:
>> On Mon, 3 Nov 2014, David Herrmann wrote:
>>
>>> > Agreed, mostly.  My only real concern is that this could be annoying
>>> > for the userspace developers who will need to target Linux and HIDAPI
>>> > separately.  Admittedly the Linux support will be trivial.
>>>
>>> I see. I'll not stop you from using hidraw, I'd just not recommend it.
>>> Especially for security stuff I dislike exposing the whole HID device
>>> writable. But yeah, I guess you got my point.
>>
>> Alright, I am basically thinking loudly now, but how about we allow HID
>> drivers that would override default hidraw interface?
>>
>> I am very well aware of the fact that this could be opening a can of
>> worms, so we'll have to make it very restrictive. How about, let's say, we
>> allow HID drivers to provide custom hidraw interface (completely
>> overriding the one that HID core would normally create) only for cases
>> such as:
>>
>> - the intent is to expose only certain parts of a combined device
>> - the intent is to introduce some level of access control
>>
>> I.e. still no interference of kernel with data parsing allowed.
>
> Hmm.  Would this be like a filter on hidraw actions?
>
> How would udev distinguish these special hidraw devices from normal
> hidraw devices?
>
> Also, for U2F, this could be a little awkward.  There's some crazy
> fragmentation stuff to allow a U2F request to be split across HID
> requests, and I think a kernel driver would much rather get the
> original unfragmented application request.
>

I started writing a driver for this.  I got enumeration working.  I
assume I should create a "u2f" device class, and then... ?

Where am I supposed to get my character device from?  Do I register my
own chrdev major?  Do I use misc?  Is there some input thing I'm
supposed to use?

Thanks,
Andy

> --Andy
>
>>
>>> > I can give the driver a try.  It'll actually be simpler than the spec
>>> > makes it out, since a real kernel driver will have no need to
>>> > arbitrate with itself.
>>>
>>> I'll gladly review any custom HID drivers. Feel free to put me on CC
>>> when sending to linux-input. There's also a lot of examples in
>>> drivers/hid/ in case you need a head-start (especially if you need the
>>> raw_event callback).
>>
>> Same here, of course.
>>
>> Please always CC me in parallel to sending to linux-input@ to make sure
>> that the patch doesn't fall in between cracks.
>>
>> Thanks,
>>
>> --
>> Jiri Kosina
>> SUSE Labs
>
>
>
> --
> Andy Lutomirski
> AMA Capital Management, LLC



-- 
Andy Lutomirski
AMA Capital Management, LLC
_______________________________________________
systemd-devel mailing list
systemd-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/systemd-devel

^ permalink raw reply

* [PATCH] Input: atmel_mxt_ts - implement T100 touch object support
From: Nick Dyer @ 2014-12-09 20:16 UTC (permalink / raw)
  To: Dmitry Torokhov
  Cc: Yufeng Shen, Daniel Kurtz, Henrik Rydberg, Joonyoung Shim,
	Alan Bowens, linux-input, linux-kernel, Peter Meerwald,
	Benson Leung, Olof Johansson, Sekhar Nori, Stephen Warren,
	Nick Dyer

Add support for the new T100 object which replaces the previous T9 multitouch
touchscreen object in recent maXTouch devices. T100 provides improved
reporting with selectable auxiliary information, and a type field for
hover/stylus/glove reporting.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Yufeng Shen <miletus@chromium.org>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 326 ++++++++++++++++++++++++++++++-
 1 file changed, 323 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index bb07020..569346e 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -79,6 +79,7 @@
 #define MXT_SPT_DIGITIZER_T43		43
 #define MXT_SPT_MESSAGECOUNT_T44	44
 #define MXT_SPT_CTECONFIG_T46		46
+#define MXT_TOUCH_MULTITOUCHSCREEN_T100 100
 
 /* MXT_GEN_MESSAGE_T5 object */
 #define MXT_RPTID_NOMSG		0xff
@@ -188,6 +189,33 @@ struct t9_range {
 #define MXT_RESET_VALUE		0x01
 #define MXT_BACKUP_VALUE	0x55
 
+/* T100 Multiple Touch Touchscreen */
+#define MXT_T100_CTRL		0
+#define MXT_T100_CFG1		1
+#define MXT_T100_TCHAUX		3
+#define MXT_T100_XRANGE		13
+#define MXT_T100_YRANGE		24
+
+#define MXT_T100_CFG_SWITCHXY	(1 << 5)
+
+#define MXT_T100_TCHAUX_VECT	(1 << 0)
+#define MXT_T100_TCHAUX_AMPL	(1 << 1)
+#define MXT_T100_TCHAUX_AREA	(1 << 2)
+
+#define MXT_T100_DETECT		(1 << 7)
+#define MXT_T100_TYPE_MASK	0x70
+
+enum t100_type {
+	MXT_T100_TYPE_FINGER		= 1,
+	MXT_T100_TYPE_PASSIVE_STYLUS	= 2,
+	MXT_T100_TYPE_HOVERING_FINGER	= 4,
+	MXT_T100_TYPE_GLOVE		= 5,
+	MXT_T100_TYPE_LARGE_TOUCH	= 6,
+};
+
+#define MXT_TOUCH_MAJOR_DEFAULT	1
+#define MXT_PRESSURE_DEFAULT	1
+
 /* Delay times */
 #define MXT_BACKUP_TIME		50	/* msec */
 #define MXT_RESET_TIME		200	/* msec */
@@ -247,6 +275,9 @@ struct mxt_data {
 	unsigned int max_y;
 	bool in_bootloader;
 	u16 mem_size;
+	u8 t100_aux_ampl;
+	u8 t100_aux_area;
+	u8 t100_aux_vect;
 	u8 max_reportid;
 	u32 config_crc;
 	u32 info_crc;
@@ -268,6 +299,8 @@ struct mxt_data {
 	u8 T9_reportid_max;
 	u8 T19_reportid;
 	u16 T44_address;
+	u8 T100_reportid_min;
+	u8 T100_reportid_max;
 
 	/* for fw update in bootloader */
 	struct completion bl_completion;
@@ -761,6 +794,113 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 	data->update_input = true;
 }
 
+static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
+{
+	struct device *dev = &data->client->dev;
+	struct input_dev *input_dev = data->input_dev;
+	int id;
+	u8 status;
+	u8 type;
+	int x;
+	int y;
+	int tool;
+	u8 major = 0;
+	u8 pressure = 0;
+	u8 orientation = 0;
+	bool active = false;
+	bool hover = false;
+
+	id = message[0] - data->T100_reportid_min - 2;
+
+	/* ignore SCRSTATUS events */
+	if (id < 0)
+		return;
+
+	status = message[1];
+	x = (message[3] << 8) | message[2];
+	y = (message[5] << 8) | message[4];
+
+	if (status & MXT_T100_DETECT) {
+		type = (status & MXT_T100_TYPE_MASK) >> 4;
+
+		switch (type) {
+		case MXT_T100_TYPE_HOVERING_FINGER:
+			hover = true;
+			/* fall through */
+		case MXT_T100_TYPE_FINGER:
+		case MXT_T100_TYPE_GLOVE:
+			active = true;
+			tool = MT_TOOL_FINGER;
+
+			if (data->t100_aux_area)
+				major = message[data->t100_aux_area];
+			if (data->t100_aux_ampl)
+				pressure = message[data->t100_aux_ampl];
+			if (data->t100_aux_vect)
+				orientation = message[data->t100_aux_vect];
+
+			break;
+
+		case MXT_T100_TYPE_PASSIVE_STYLUS:
+			active = true;
+			tool = MT_TOOL_PEN;
+
+			/* Passive stylus is reported with size zero so
+			 * hardcode */
+			major = MXT_TOUCH_MAJOR_DEFAULT;
+
+			if (data->t100_aux_ampl)
+				pressure = message[data->t100_aux_ampl];
+
+			break;
+
+		case MXT_T100_TYPE_LARGE_TOUCH:
+			/* Ignore suppressed touch */
+			break;
+
+		default:
+			dev_dbg(dev, "Unexpected T100 type\n");
+			return;
+		}
+	}
+
+	if (hover) {
+		pressure = 0;
+		major = 0;
+	} else if (active) {
+		/*
+		 * Values reported should be non-zero if tool is touching the
+		 * device
+		 */
+		if (pressure == 0)
+			pressure = MXT_PRESSURE_DEFAULT;
+
+		if (major == 0)
+			major = MXT_TOUCH_MAJOR_DEFAULT;
+	}
+
+	input_mt_slot(input_dev, id);
+
+	if (active) {
+		dev_dbg(dev, "[%u] type:%u x:%u y:%u a:%02X p:%02X v:%02X\n",
+			id, type, x, y, major, pressure, orientation);
+
+		input_mt_report_slot_state(input_dev, tool, 1);
+		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
+		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
+		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, major);
+		input_report_abs(input_dev, ABS_MT_PRESSURE, pressure);
+		input_report_abs(input_dev, ABS_MT_ORIENTATION, orientation);
+	} else {
+		dev_dbg(dev, "[%u] release\n", id);
+
+		/* close out slot */
+		input_mt_report_slot_state(input_dev, 0, 0);
+	}
+
+	data->update_input = true;
+}
+
 static int mxt_proc_message(struct mxt_data *data, u8 *message)
 {
 	u8 report_id = message[0];
@@ -779,6 +919,9 @@ static int mxt_proc_message(struct mxt_data *data, u8 *message)
 	} else if (report_id >= data->T9_reportid_min
 	    && report_id <= data->T9_reportid_max) {
 		mxt_proc_t9_message(data, message);
+	} else if (report_id >= data->T100_reportid_min
+	    && report_id <= data->T100_reportid_max) {
+		mxt_proc_t100_message(data, message);
 	} else if (report_id == data->T19_reportid) {
 		mxt_input_button(data, message);
 		data->update_input = true;
@@ -1401,6 +1544,8 @@ static void mxt_free_object_table(struct mxt_data *data)
 	data->T9_reportid_max = 0;
 	data->T19_reportid = 0;
 	data->T44_address = 0;
+	data->T100_reportid_min = 0;
+	data->T100_reportid_max = 0;
 	data->max_reportid = 0;
 }
 
@@ -1488,6 +1633,12 @@ static int mxt_get_object_table(struct mxt_data *data)
 		case MXT_SPT_GPIOPWM_T19:
 			data->T19_reportid = min_id;
 			break;
+		case MXT_TOUCH_MULTITOUCHSCREEN_T100:
+			data->T100_reportid_min = min_id;
+			data->T100_reportid_max = max_id;
+			/* first two report IDs reserved */
+			data->num_touchids = object->num_report_ids - 2;
+			break;
 		}
 
 		end_address = object->start_address
@@ -1668,6 +1819,167 @@ err_free_mem:
 	return error;
 }
 
+static int mxt_read_t100_config(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+	struct mxt_object *object;
+	u16 range_x, range_y;
+	u8 cfg, tchaux;
+	u8 aux;
+
+	object = mxt_get_object(data, MXT_TOUCH_MULTITOUCHSCREEN_T100);
+	if (!object)
+		return -EINVAL;
+
+	error = __mxt_read_reg(client,
+			       object->start_address + MXT_T100_XRANGE,
+			       sizeof(range_x), &range_x);
+	if (error)
+		return error;
+
+	le16_to_cpus(&range_x);
+
+	error = __mxt_read_reg(client,
+			       object->start_address + MXT_T100_YRANGE,
+			       sizeof(range_y), &range_y);
+	if (error)
+		return error;
+
+	le16_to_cpus(&range_y);
+
+	error =  __mxt_read_reg(client,
+				object->start_address + MXT_T100_CFG1,
+				1, &cfg);
+	if (error)
+		return error;
+
+	error =  __mxt_read_reg(client,
+				object->start_address + MXT_T100_TCHAUX,
+				1, &tchaux);
+	if (error)
+		return error;
+
+	/* Handle default values */
+	if (range_x == 0)
+		range_x = 1023;
+
+	/* Handle default values */
+	if (range_x == 0)
+		range_x = 1023;
+
+	if (range_y == 0)
+		range_y = 1023;
+
+	if (cfg & MXT_T100_CFG_SWITCHXY) {
+		data->max_x = range_y;
+		data->max_y = range_x;
+	} else {
+		data->max_x = range_x;
+		data->max_y = range_y;
+	}
+
+	/* allocate aux bytes */
+	aux = 6;
+
+	if (tchaux & MXT_T100_TCHAUX_VECT)
+		data->t100_aux_vect = aux++;
+
+	if (tchaux & MXT_T100_TCHAUX_AMPL)
+		data->t100_aux_ampl = aux++;
+
+	if (tchaux & MXT_T100_TCHAUX_AREA)
+		data->t100_aux_area = aux++;
+
+	dev_dbg(&client->dev,
+		"T100 aux mappings vect:%u ampl:%u area:%u\n",
+		data->t100_aux_vect, data->t100_aux_ampl, data->t100_aux_area);
+
+	dev_info(&client->dev,
+		 "T100 Touchscreen size X%uY%u\n", data->max_x, data->max_y);
+
+	return 0;
+}
+
+static int mxt_initialize_t100_input_device(struct mxt_data *data)
+{
+	struct device *dev = &data->client->dev;
+	struct input_dev *input_dev;
+	int error;
+
+	error = mxt_read_t100_config(data);
+	if (error)
+		dev_warn(dev, "Failed to initialize T9 resolution\n");
+
+	input_dev = input_allocate_device();
+	if (!data || !input_dev) {
+		dev_err(dev, "Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	input_dev->name = "atmel_mxt_ts T100 touchscreen";
+
+	input_dev->phys = data->phys;
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &data->client->dev;
+	input_dev->open = mxt_input_open;
+	input_dev->close = mxt_input_close;
+
+	set_bit(EV_ABS, input_dev->evbit);
+	input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
+
+	/* For single touch */
+	input_set_abs_params(input_dev, ABS_X,
+			     0, data->max_x, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			     0, data->max_y, 0, 0);
+
+	if (data->t100_aux_ampl)
+		input_set_abs_params(input_dev, ABS_PRESSURE,
+				     0, 255, 0, 0);
+
+	/* For multi touch */
+	error = input_mt_init_slots(input_dev, data->num_touchids, 0);
+	if (error) {
+		dev_err(dev, "Error %d initialising slots\n", error);
+		goto err_free_mem;
+	}
+
+	input_set_abs_params(input_dev, ABS_MT_TOOL_TYPE, 0, MT_TOOL_MAX, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+			     0, data->max_x, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+			     0, data->max_y, 0, 0);
+
+	if (data->t100_aux_area)
+		input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+				     0, MXT_MAX_AREA, 0, 0);
+
+	if (data->t100_aux_ampl)
+		input_set_abs_params(input_dev, ABS_MT_PRESSURE,
+				     0, 255, 0, 0);
+
+	if (data->t100_aux_vect)
+		input_set_abs_params(input_dev, ABS_MT_ORIENTATION,
+				     0, 255, 0, 0);
+
+	input_set_drvdata(input_dev, data);
+
+	error = input_register_device(input_dev);
+	if (error) {
+		dev_err(dev, "Error %d registering input device\n", error);
+		goto err_free_mem;
+	}
+
+	data->input_dev = input_dev;
+
+	return 0;
+
+err_free_mem:
+	input_free_device(input_dev);
+	return error;
+}
+
 static int mxt_configure_objects(struct mxt_data *data,
 				 const struct firmware *cfg);
 
@@ -1815,9 +2127,17 @@ static int mxt_configure_objects(struct mxt_data *data,
 		return error;
 	}
 
-	error = mxt_initialize_t9_input_device(data);
-	if (error)
-		return error;
+	if (data->T9_reportid_min) {
+		error = mxt_initialize_t9_input_device(data);
+		if (error)
+			return error;
+	} else if (data->T100_reportid_min) {
+		error = mxt_initialize_t100_input_device(data);
+		if (error)
+			return error;
+	} else {
+		dev_warn(dev, "No touch object detected\n");
+	}
 
 	dev_info(dev,
 		 "Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n",
-- 
1.9.1


^ permalink raw reply related

* Re: [PATCH 0/7] Fixes for ALPS trackstick
From: Pali Rohár @ 2014-12-09 17:08 UTC (permalink / raw)
  To: Dmitry Torokhov
  Cc: Hans de Goede, Yunkang Tang, Vadim Klishko, linux-input,
	linux-kernel
In-Reply-To: <1415993906-13307-1-git-send-email-pali.rohar@gmail.com>

[-- Attachment #1: Type: Text/Plain, Size: 1183 bytes --]

On Friday 14 November 2014 20:38:19 Pali Rohár wrote:
> This patch series fix detection and identifying trackstick on
> machines with ALPS devices. Last patch split trackstick and
> bare PS/2 mouse packets between dev2 and dev3 input devices
> which make sure that driver will send only trackstick data to
> trackstick input device.
> 
> Pali Rohár (7):
>   input: alps: Set correct name of psmouse device in
> alps_init() input: alps: Move trackstick detection to
> alps_hw_init_* input: alps: Move alps_dolphin_get_device_area
> into alps_hw_init_dolphin_v1
>   input: alps: Use NULL instead dummy argument for
> alps_identify input: alps: Fix name, product and version of
> dev2 input device input: alps: Add sanity checks for non
> DualPoint devices input: alps: Do not report both trackstick
> and external PS/2 mouse data to one input device
> 
>  drivers/input/mouse/alps.c |  361
> +++++++++++++++++++++++++++++++-------------
> drivers/input/mouse/alps.h |   14 +-
>  2 files changed, 264 insertions(+), 111 deletions(-)

Hi Dmitry, now when 3.18 was released, can you review this patch 
series for 3.19?

-- 
Pali Rohár
pali.rohar@gmail.com

[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 198 bytes --]

^ permalink raw reply

* PROBLEM: X450JN Touchpad not properly detected
From: Miguel Ribeiro @ 2014-12-09 16:39 UTC (permalink / raw)
  To: linux-input

[1.] [X450JN] Touchpad not properly detected

[2.] My laptop touchpad only works as left/right button and moving
around. No other features (scrolling, ..) are working. I'm running
Ubuntu 12.04.5 and xserver-xorg-input-synaptics
1.6.2-1ubuntu1~precise2. In System Settings> Mouse and Touchpad there
is no Touchpad tab.

[3.]

[4.] Linux version 3.18.0-031800-generic (apw@gomeisa) (gcc version
4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201412071935 SMP Mon Dec 8
00:36:34 UTC 2014

[5.]

[6.]

[7.] lsb_release -rd
Description:    Ubuntu 12.04.5 LTS
Release:        12.04

[7.1.]
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux cod 3.18.0-031800-generic #201412071935 SMP Mon Dec 8 00:36:34
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Gnu C                  4.6
Gnu make               3.81
binutils               2.22
util-linux             2.20.1
mount                  support
module-init-tools      3.16
e2fsprogs              1.42
pcmciautils            018
PPP                    2.4.5
Linux C Library        2.15
Dynamic linker (ldd)   2.15
Procps                 3.2.8
Net-tools              1.60
Kbd                    1.15.2
Sh-utils               8.13
wireless-tools         30
Modules Loaded         ctr ccm bbswitch rfcomm bnep parport_pc ppdev
binfmt_misc nls_iso8859_1 uvcvideo videobuf2_core v4l2_common videodev
media videobuf2_vmalloc videobuf2_memops joydev snd_hda_codec_realtek
snd_hda_codec_hdmi snd_hda_codec_generic arc4 snd_hda_intel ath9k
snd_hda_controller snd_hda_codec mac80211 snd_hwdep ath9k_common
snd_pcm ath9k_hw snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq
ath btusb snd_timer snd_seq_device cfg80211 bluetooth asus_nb_wmi
asus_wmi i915 mei_me psmouse mei sparse_keymap snd mac_hid serio_raw
lpc_ich ie31200_edac soundcore edac_core nouveau ttm drm_kms_helper
drm i2c_algo_bit mxm_wmi video wmi lp parport hid_generic usbhid hid
ahci alx libahci mdio

[7.2.]

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2392.781
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 0
cpu cores       : 4
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2429.906
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 1
cpu cores       : 4
apicid          : 2
initial apicid  : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 2
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2492.531
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 2
cpu cores       : 4
apicid          : 4
initial apicid  : 4
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 3
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2400.000
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 3
cpu cores       : 4
apicid          : 6
initial apicid  : 6
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 4
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2326.031
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 0
cpu cores       : 4
apicid          : 1
initial apicid  : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 5
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2435.718
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 1
cpu cores       : 4
apicid          : 3
initial apicid  : 3
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 6
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2461.218
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 2
cpu cores       : 4
apicid          : 5
initial apicid  : 5
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

processor       : 7
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
stepping        : 3
microcode       : 0x17
cpu MHz         : 2397.093
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 3
cpu cores       : 4
apicid          : 7
initial apicid  : 7
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq
dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms
invpcid xsaveopt
bugs            :
bogomips        : 4789.24
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

[7.3.]

ctr 13193 1 - Live 0x0000000000000000
ccm 17856 1 - Live 0x0000000000000000
bbswitch 13931 0 - Live 0x0000000000000000 (OE)
rfcomm 75066 12 - Live 0x0000000000000000
bnep 23980 2 - Live 0x0000000000000000
parport_pc 32909 0 - Live 0x0000000000000000
ppdev 17711 0 - Live 0x0000000000000000
binfmt_misc 17501 1 - Live 0x0000000000000000
nls_iso8859_1 12713 1 - Live 0x0000000000000000
uvcvideo 86723 0 - Live 0x0000000000000000
videobuf2_core 51547 1 uvcvideo, Live 0x0000000000000000
v4l2_common 15715 1 videobuf2_core, Live 0x0000000000000000
videodev 163831 3 uvcvideo,videobuf2_core,v4l2_common, Live 0x0000000000000000
media 22008 2 uvcvideo,videodev, Live 0x0000000000000000
videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
joydev 17587 0 - Live 0x0000000000000000
snd_hda_codec_realtek 80420 1 - Live 0x0000000000000000
snd_hda_codec_hdmi 52670 1 - Live 0x0000000000000000
snd_hda_codec_generic 69995 1 snd_hda_codec_realtek, Live 0x0000000000000000
arc4 12573 2 - Live 0x0000000000000000
snd_hda_intel 30824 5 - Live 0x0000000000000000
ath9k 162133 0 - Live 0x0000000000000000
snd_hda_controller 32234 1 snd_hda_intel, Live 0x0000000000000000
snd_hda_codec 144641 5
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller,
Live 0x0000000000000000
mac80211 697159 1 ath9k, Live 0x0000000000000000
snd_hwdep 17709 1 snd_hda_codec, Live 0x0000000000000000
ath9k_common 25638 1 ath9k, Live 0x0000000000000000
snd_pcm 106273 4
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller,snd_hda_codec,
Live 0x0000000000000000
ath9k_hw 460416 2 ath9k,ath9k_common, Live 0x0000000000000000
snd_seq_midi 13564 0 - Live 0x0000000000000000
snd_rawmidi 31197 1 snd_seq_midi, Live 0x0000000000000000
snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000
snd_seq 63540 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
ath 29397 3 ath9k,ath9k_common,ath9k_hw, Live 0x0000000000000000
btusb 32691 0 - Live 0x0000000000000000
snd_timer 30118 2 snd_pcm,snd_seq, Live 0x0000000000000000
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
cfg80211 520257 4 ath9k,mac80211,ath9k_common,ath, Live 0x0000000000000000
bluetooth 486890 24 rfcomm,bnep,btusb, Live 0x0000000000000000
asus_nb_wmi 21128 0 - Live 0x0000000000000000
asus_wmi 24697 1 asus_nb_wmi, Live 0x0000000000000000
i915 1031996 7 - Live 0x0000000000000000
mei_me 19565 0 - Live 0x0000000000000000
psmouse 102293 0 - Live 0x0000000000000000 (OE)
mei 88473 1 mei_me, Live 0x0000000000000000
sparse_keymap 13890 1 asus_wmi, Live 0x0000000000000000
snd 84025 21 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device,
Live 0x0000000000000000
mac_hid 13275 0 - Live 0x0000000000000000
serio_raw 13483 0 - Live 0x0000000000000000
lpc_ich 21176 0 - Live 0x0000000000000000
ie31200_edac 12938 0 - Live 0x0000000000000000
soundcore 15091 2 snd_hda_codec,snd, Live 0x0000000000000000
edac_core 52405 1 ie31200_edac, Live 0x0000000000000000
nouveau 1365969 0 - Live 0x0000000000000000
ttm 90228 1 nouveau, Live 0x0000000000000000
drm_kms_helper 99802 2 i915,nouveau, Live 0x0000000000000000
drm 323675 8 i915,nouveau,ttm,drm_kms_helper, Live 0x0000000000000000
i2c_algo_bit 13564 2 i915,nouveau, Live 0x0000000000000000
mxm_wmi 13021 1 nouveau, Live 0x0000000000000000
video 20649 3 asus_wmi,i915,nouveau, Live 0x0000000000000000
wmi 19379 3 asus_wmi,nouveau,mxm_wmi, Live 0x0000000000000000
lp 17799 0 - Live 0x0000000000000000
parport 42481 3 parport_pc,ppdev,lp, Live 0x0000000000000000
hid_generic 12559 0 - Live 0x0000000000000000
usbhid 53155 0 - Live 0x0000000000000000
hid 110572 2 hid_generic,usbhid, Live 0x0000000000000000
ahci 34220 4 - Live 0x0000000000000000
alx 41397 0 - Live 0x0000000000000000
libahci 32353 1 ahci, Live 0x0000000000000000
mdio 13561 1 alx, Live 0x0000000000000000

[7.4.]
ioports

0000-0cf7 : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0062-0062 : PNP0C09:00
    0062-0062 : EC data
  0064-0064 : keyboard
  0066-0066 : PNP0C09:00
    0066-0066 : EC cmd
  0068-006f : PNP0C09:00
  0070-0077 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : fpu
    00f0-00f0 : PNP0C04:00
  04d0-04d1 : pnp 00:04
  0680-069f : pnp 00:01
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
  164e-164f : pnp 00:01
  1800-1803 : ACPI PM1a_EVT_BLK
  1804-1805 : ACPI PM1a_CNT_BLK
  1808-180b : ACPI PM_TMR
  1810-1815 : ACPI CPU throttle
  1820-182f : ACPI GPE0_BLK
  1830-1833 : iTCO_wdt
  1850-1850 : ACPI PM2_CNT_BLK
  1854-1857 : pnp 00:03
  1860-187f : iTCO_wdt
  1c00-1cfe : pnp 00:01
  1d00-1dfe : pnp 00:01
  1e00-1efe : pnp 00:01
  1f00-1ffe : pnp 00:01
  2000-2fff : PCI Bus 0000:02
  d000-dfff : PCI Bus 0000:04
    d000-d07f : 0000:04:00.0
  e000-efff : PCI Bus 0000:01
    e000-e07f : 0000:01:00.0
  f000-f03f : 0000:00:02.0
  f040-f05f : 0000:00:1f.3
  f060-f07f : 0000:00:1f.2
    f060-f07f : ahci
  f080-f083 : 0000:00:1f.2
    f080-f083 : ahci
  f090-f097 : 0000:00:1f.2
    f090-f097 : ahci
  f0a0-f0a3 : 0000:00:1f.2
    f0a0-f0a3 : ahci
  f0b0-f0b7 : 0000:00:1f.2
    f0b0-f0b7 : ahci
  ffff-ffff : pnp 00:01
    ffff-ffff : pnp 00:01
      ffff-ffff : pnp 00:01

iomem
00000000-00000fff : reserved
00001000-00057fff : System RAM
00058000-00058fff : reserved
00059000-0009dfff : System RAM
0009e000-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c3fff : PCI Bus 0000:00
000c4000-000c7fff : PCI Bus 0000:00
000c8000-000cbfff : PCI Bus 0000:00
000cc000-000cffff : PCI Bus 0000:00
000d0000-000d3fff : PCI Bus 0000:00
000d4000-000d7fff : PCI Bus 0000:00
000d8000-000dbfff : PCI Bus 0000:00
000dc000-000dffff : PCI Bus 0000:00
000f0000-000fffff : System ROM
00100000-b90befff : System RAM
  01000000-017b85b7 : Kernel code
  017b85b8-01d2123f : Kernel data
  01e87000-01fcffff : Kernel bss
b90bf000-b90c5fff : ACPI Non-volatile Storage
b90c6000-b94f8fff : System RAM
b94f9000-b9915fff : reserved
b9916000-c8d9dfff : System RAM
c8d9e000-c8e35fff : reserved
c8e36000-c8e54fff : ACPI Tables
c8e55000-c9793fff : ACPI Non-volatile Storage
c9794000-c9ffefff : reserved
c9fff000-c9ffffff : System RAM
ca000000-caffffff : RAM buffer
cb000000-cf1fffff : reserved
  cb200000-cf1fffff : Graphics Stolen Memory
cf200000-feafffff : PCI Bus 0000:00
  cf200000-cf3fffff : PCI Bus 0000:02
  cf400000-cf5fffff : PCI Bus 0000:02
  d0000000-dfffffff : 0000:00:02.0
  e0000000-f1ffffff : PCI Bus 0000:01
    e0000000-efffffff : 0000:01:00.0
    f0000000-f1ffffff : 0000:01:00.0
  f6000000-f70fffff : PCI Bus 0000:01
    f6000000-f6ffffff : 0000:01:00.0
    f7000000-f707ffff : 0000:01:00.0
  f7400000-f77fffff : 0000:00:02.0
  f7800000-f78fffff : PCI Bus 0000:04
    f7800000-f783ffff : 0000:04:00.0
      f7800000-f783ffff : alx
  f7900000-f79fffff : PCI Bus 0000:03
    f7900000-f797ffff : 0000:03:00.0
      f7900000-f797ffff : ath9k
    f7980000-f798ffff : 0000:03:00.0
  f7a00000-f7a0ffff : 0000:00:14.0
    f7a00000-f7a0ffff : xhci-hcd
  f7a10000-f7a13fff : 0000:00:1b.0
    f7a10000-f7a13fff : ICH HD audio
  f7a14000-f7a17fff : 0000:00:03.0
    f7a14000-f7a17fff : ICH HD audio
  f7a19000-f7a190ff : 0000:00:1f.3
  f7a1a000-f7a1a7ff : 0000:00:1f.2
    f7a1a000-f7a1a7ff : ahci
  f7a1b000-f7a1b3ff : 0000:00:1d.0
    f7a1b000-f7a1b3ff : ehci_hcd
  f7a1c000-f7a1c3ff : 0000:00:1a.0
    f7a1c000-f7a1c3ff : ehci_hcd
  f7a1e000-f7a1e00f : 0000:00:16.0
    f7a1e000-f7a1e00f : mei_me
  f7fdf000-f7fdffff : pnp 00:07
  f7fe0000-f7feffff : pnp 00:07
  f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f]
    f8000000-fbffffff : reserved
      f8000000-fbffffff : pnp 00:07
  fe800000-fe80ffff : PNP0C09:00
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fed00000-fed03fff : reserved
  fed00000-fed003ff : HPET 0
    fed00000-fed003ff : PNP0103:00
fed10000-fed17fff : pnp 00:07
fed18000-fed18fff : pnp 00:07
fed19000-fed19fff : pnp 00:07
fed1c000-fed1ffff : reserved
  fed1c000-fed1ffff : pnp 00:07
    fed1f410-fed1f414 : iTCO_wdt
fed20000-fed3ffff : pnp 00:07
fed40000-fed44fff : pnp 00:00
fed45000-fed8ffff : pnp 00:07
fed90000-fed90fff : dmar0
fed91000-fed91fff : dmar1
fee00000-fee00fff : Local APIC
  fee00000-fee00fff : reserved
ff000000-ffffffff : reserved
  ff000000-ffffffff : INT0800:00
    ff000000-ffffffff : pnp 00:07
100000000-22fdfffff : System RAM
22fe00000-22fffffff : RAM buffer


[7.5.]
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor DRAM Controller (rev 06)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort+>SERR- <PERR- INTx-
        Latency: 0
        Capabilities: [e0] Vendor Specific Information: Len=0c <?>

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor PCI Express x16 Controller (rev 06) (prog-if 00 [Normal
decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 0000e000-0000efff
        Memory behind bridge: f6000000-f70fffff
        Prefetchable memory behind bridge: 00000000e0000000-00000000f1ffffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: [88] Subsystem: ASUSTeK Computer Inc. Device 11ed
        Capabilities: [80] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee002d8  Data: 0000
        Capabilities: [a0] Express (v2) Root Port (Slot+), MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
                        ExtTag- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr- TransPend-
                LnkCap: Port #2, Speed unknown, Width x16, ASPM L0s
L1, Latency L0 <256ns, L1 <8us
                        ClockPM- Surprise- LLActRep- BwNot+
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled+ Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed unknown, Width x4, TrErr- Train-
SlotClk+ DLActive- BWMgmt+ ABWMgmt+
                SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug- Surprise-
                        Slot #1, PowerLimit 75.000W; Interlock- NoCompl+
                SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
CmdCplt- HPIrq- LinkChg-
                        Control: AttnInd Unknown, PwrInd Unknown,
Power- Interlock-
                SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet+ Interlock-
                        Changed: MRL- PresDet- LinkState-
                RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
                RootCap: CRSVisible-
                RootSta: PME ReqID 0000, PMEStatus- PMEPending-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
                LnkCtl2: Target Link Speed: Unknown, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -3.5dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB
        Capabilities: [100 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
                        Status: NegoPending- InProgress-
        Capabilities: [140 v1] Root Complex Link
                Desc:   PortNumber=02 ComponentID=01 EltType=Config
                Link0:  Desc:   TargetPort=00 TargetComponent=01
AssocRCRB- LinkType=MemMapped LinkValid+
                        Addr:   00000000fed19000
        Capabilities: [d94 v1] #19
        Kernel driver in use: pcieport

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA
controller])
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 30
        Region 0: Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee00018  Data: 0000
        Capabilities: [d0] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [a4] PCI Advanced Features
                AFCap: TP+ FLR+
                AFCtrl: FLR-
                AFStatus: TP-
        Kernel driver in use: i915

00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 32
        Region 0: Memory at f7a14000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee003f8  Data: 0000
        Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 unlimited
                        ExtTag- RBE- FLReset+
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr- TransPend-
                LnkCap: Port #0, Speed unknown, Width x0, ASPM
unknown, Latency L0 <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed unknown, Width x0, TrErr- Train-
SlotClk- DLActive- BWMgmt- ABWMgmt-
        Kernel driver in use: snd_hda_intel

00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB xHCI (rev 05) (prog-if 30 [XHCI])
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 27
        Region 0: Memory at f7a00000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [70] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
                Address: 00000000fee00338  Data: 0000
        Kernel driver in use: xhci_hcd

00:16.0 Communication controller: Intel Corporation 8 Series/C220
Series Chipset Family MEI Controller #1 (rev 04)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 29
        Region 0: Memory at f7a1e000 (64-bit, non-prefetchable) [size=16]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee00398  Data: 0000
        Kernel driver in use: mei_me

00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #2 (rev 05) (prog-if 20 [EHCI])
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f7a1c000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Debug port: BAR=1 offset=00a0
        Capabilities: [98] PCI Advanced Features
                AFCap: TP+ FLR+
                AFCtrl: FLR-
                AFStatus: TP-
        Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset
High Definition Audio Controller (rev 05)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 31
        Region 0: Memory at f7a10000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee003d8  Data: 0000
        Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
                        ExtTag- RBE- FLReset+
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #0, Speed unknown, Width x0, ASPM
unknown, Latency L0 <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed unknown, Width x0, TrErr- Train-
SlotClk- DLActive- BWMgmt- ABWMgmt-
        Capabilities: [100 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
                        Status: NegoPending- InProgress-
                VC1:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=2 ArbSelect=Fixed TC/VC=04
                        Status: NegoPending- InProgress-
        Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset
Family PCI Express Root Port #1 (rev d5) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: cf200000-cf3fffff
        Prefetchable memory behind bridge: 00000000cf400000-00000000cf5fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
                        ExtTag- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1,
Latency L0 <1us, L1 <4us
                        ClockPM- Surprise- LLActRep+ BwNot+
                LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled-
Retrain- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train-
SlotClk+ DLActive- BWMgmt- ABWMgmt-
                SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug+ Surprise+
                        Slot #0, PowerLimit 0.000W; Interlock- NoCompl+
                SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
CmdCplt- HPIrq- LinkChg-
                        Control: AttnInd Unknown, PwrInd Unknown,
Power- Interlock-
                SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet- Interlock-
                        Changed: MRL- PresDet- LinkState-
                RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
                RootCap: CRSVisible-
                RootSta: PME ReqID 0000, PMEStatus- PMEPending-
                DevCap2: Completion Timeout: Range ABC, TimeoutDis+ ARIFwd-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -3.5dB
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
                Address: 00000000  Data: 0000
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 11ed
        Capabilities: [a0] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: pcieport

00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset
Family PCI Express Root Port #3 (rev d5) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        I/O behind bridge: 0000f000-00000fff
        Memory behind bridge: f7900000-f79fffff
        Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
                        ExtTag- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1,
Latency L0 <512ns, L1 <16us
                        ClockPM- Surprise- LLActRep+ BwNot+
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
                SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug- Surprise-
                        Slot #2, PowerLimit 10.000W; Interlock- NoCompl+
                SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
CmdCplt- HPIrq- LinkChg-
                        Control: AttnInd Unknown, PwrInd Unknown,
Power- Interlock-
                SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet+ Interlock-
                        Changed: MRL- PresDet- LinkState-
                RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
                RootCap: CRSVisible-
                RootSta: PME ReqID 0000, PMEStatus- PMEPending-
                DevCap2: Completion Timeout: Range ABC, TimeoutDis+ ARIFwd-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -3.5dB
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
                Address: 00000000  Data: 0000
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 11ed
        Capabilities: [a0] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: pcieport

00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset
Family PCI Express Root Port #4 (rev d5) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
        I/O behind bridge: 0000d000-0000dfff
        Memory behind bridge: f7800000-f78fffff
        Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
                        ExtTag- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1,
Latency L0 <512ns, L1 <16us
                        ClockPM- Surprise- LLActRep+ BwNot+
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
                SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug- Surprise-
                        Slot #3, PowerLimit 10.000W; Interlock- NoCompl+
                SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
CmdCplt- HPIrq- LinkChg-
                        Control: AttnInd Unknown, PwrInd Unknown,
Power- Interlock-
                SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet+ Interlock-
                        Changed: MRL- PresDet- LinkState-
                RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
                RootCap: CRSVisible-
                RootSta: PME ReqID 0000, PMEStatus- PMEPending-
                DevCap2: Completion Timeout: Range ABC, TimeoutDis+ ARIFwd-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -3.5dB
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
                Address: 00000000  Data: 0000
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 11ed
        Capabilities: [a0] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: pcieport

00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #1 (rev 05) (prog-if 20 [EHCI])
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 23
        Region 0: Memory at f7a1b000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Debug port: BAR=1 offset=00a0
        Capabilities: [98] PCI Advanced Features
                AFCap: TP+ FLR+
                AFCtrl: FLR-
                AFStatus: TP-
        Kernel driver in use: ehci-pci

00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Capabilities: [e0] Vendor Specific Information: Len=0c <?>
        Kernel driver in use: lpc_ich

00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series
Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) (prog-if
01 [AHCI 1.0])
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin B routed to IRQ 28
        Region 0: I/O ports at f0b0 [size=8]
        Region 1: I/O ports at f0a0 [size=4]
        Region 2: I/O ports at f090 [size=8]
        Region 3: I/O ports at f080 [size=4]
        Region 4: I/O ports at f060 [size=32]
        Region 5: Memory at f7a1a000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee00378  Data: 0000
        Capabilities: [70] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot+,D3cold-)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
        Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family
SMBus Controller (rev 05)
        Subsystem: ASUSTeK Computer Inc. Device 11ed
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr-
DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
        Interrupt: pin C routed to IRQ 255
        Region 0: Memory at f7a19000 (64-bit, non-prefetchable) [size=256]
        Region 4: I/O ports at f040 [size=32]

01:00.0 3D controller: NVIDIA Corporation Device 1341 (rev ff) (prog-if ff)
        !!! Unknown header type 7f

03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless
Network Adapter (rev 01)
        Subsystem: Lite-On Communications Inc Device 0652
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f7900000 (64-bit, non-prefetchable) [size=512K]
        Expansion ROM at f7980000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
                Address: 0000000000000000  Data: 0000
                Masking: 00000000  Pending: 00000000
        Capabilities: [70] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1,
Latency L0 <4us, L1 <64us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis+
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
                LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB
        Capabilities: [100 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt-
UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
        Capabilities: [140 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
                        Status: NegoPending- InProgress-
        Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
        Kernel driver in use: ath9k

04:00.0 Ethernet controller: Qualcomm Atheros QCA8171 Gigabit Ethernet (rev 10)
        Subsystem: ASUSTeK Computer Inc. Device 200f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-
<TAbort- <MAbort->SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 33
        Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=256K]
        Region 2: I/O ports at d000 [size=128]
        Capabilities: [40] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Express (v1) Endpoint, MSI 00
                DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency
L0s unlimited, L1 unlimited
                        ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset-
                DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+
Unsupported+
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq-
AuxPwr+ TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1,
Latency L0 unlimited, L1 unlimited
                        ClockPM+ Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
SlotClk+ DLActive- BWMgmt- ABWMgmt-
        Capabilities: [c0] MSI: Enable+ Count=1/16 Maskable+ 64bit+
                Address: 00000000fee00418  Data: 0000
                Masking: 0000fffe  Pending: 00000000
        Capabilities: [d8] MSI-X: Enable- Count=16 Masked-
                Vector table: BAR=0 offset=00002000
                PBA: BAR=0 offset=00003000
        Capabilities: [100 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout+ NonFatalErr-
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
        Capabilities: [180 v1] Device Serial Number ff-55-e1-72-10-c3-7b-ff
        Kernel driver in use: alx

[7.6.]

Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: Slimtype Model: DVD A  DA8A5SH-L Rev: RAA1
  Type:   CD-ROM                           ANSI  SCSI revision: 05
Host: scsi5 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: HGST HTS721075A9 Rev: A3J0
  Type:   Direct-Access                    ANSI  SCSI revision: 05


[7.7.]

1
10
1064
1067
1068
1069
11
1105
1106
1182
1187
119
12
120
1201
1234
1257
1278
1289
1298
13
1304
1320
1324
1325
1358
1361
1368
1390
1393
1394
1397
1398
14
1400
1401
1404
1416
1418
1447
15
1510
1519
1524
1528
1537
1538
1593
16
17
1725
18
1814
1841
1851
1864
19
1905
1908
2
20
2094
21
2119
22
23
2305
2333
2397
24
2408
2443
2446
2447
2454
2465
2467
2474
2484
2489
2491
2494
2495
25
2500
2501
2502
2505
2512
2513
2516
2519
2522
2524
2532
2541
2543
2560
2569
2573
2591
26
2607
2611
2621
2626
2643
2645
2647
2649
2666
2668
2673
2675
2680
2682
27
2708
2710
2738
2744
2750
2757
2761
2764
277
2772
2773
278
2784
2786
2788
279
2790
28
280
281
282
2821
2822
2826
2827
283
2833
284
2843
285
286
2863
2867
287
288
2881
289
29
290
2926
2931
2952
3
30
3005
3038
3049
3068
3073
3089
31
3101
3111
3121
32
33
3315
3344
34
3479
35
352
36
3659
37
38
3810
3824
3835
3836
3844
386
387
39
40
4039
4048
4055
41
42
4239
4287
43
432
437
44
45
46
4662
4684
47
48
482
485
486
49
5
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
7
70
71
72
73
74
75
76
78
8
80
81
82
836
837
9
908
930
932
933
935
94
95
96
964
965
966
968
97
98
99
994
997
acpi
asound
buddyinfo
bus
cgroups
cmdline
consoles
cpuinfo
crypto
devices
diskstats
dma
driver
execdomains
fb
filesystems
fs
interrupts
iomem
ioports
irq
kallsyms
kcore
keys
key-users
kmsg
kpagecount
kpageflags
loadavg
locks
mdstat
meminfo
misc
modules
mounts
mtrr
net
pagetypeinfo
partitions
sched_debug
schedstat
scsi
self
slabinfo
softirqs
stat
swaps
sys
sysrq-trigger
sysvipc
thread-self
timer_list
timer_stats
tty
uptime
version
vmallocinfo
vmstat
zoneinfo

[8.]

Bug report: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1395811
Solution found: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392949

^ permalink raw reply

* [PATCH] Input: gpio_keys - fix warning regarding uninitialized  'button' variable
From: Fabio Estevam @ 2014-12-09 14:44 UTC (permalink / raw)
  To: dmitry.torokhov; +Cc: linux-input, festevam, Fabio Estevam

Commit af906faabcf91eb1 ("Input: gpio_keys - fix warning regarding uninitialized
'irq' variable") introduced the following build warning:

drivers/input/keyboard/gpio_keys.c:625:16: warning: 'button' may be used uninitialized in this function [-Wmaybe-uninitialized]

Move the 'button' initialization to a proper location to avoid such warning.

Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/input/keyboard/gpio_keys.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index fb8256f..28ac922 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -621,6 +621,8 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 		int gpio = -1;
 		enum of_gpio_flags flags;
 
+		button = &pdata->buttons[i++];
+
 		if (!of_find_property(pp, "gpios", NULL)) {
 			button->irq = irq_of_parse_and_map(pp, 0);
 			if (button->irq == 0) {
@@ -640,8 +642,6 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 			}
 		}
 
-		button = &pdata->buttons[i++];
-
 		button->gpio = gpio;
 		button->active_low = flags & OF_GPIO_ACTIVE_LOW;
 
-- 
1.9.1


^ permalink raw reply related

* Re: [PATCH v2 2/3] HID: wacom: Initialize MT slots for generic devices at post_parse_hid
From: Benjamin Tissoires @ 2014-12-09 14:29 UTC (permalink / raw)
  To: Jiri Kosina; +Cc: Jason Gerecke, linux-input, Ping Cheng
In-Reply-To: <alpine.LNX.2.00.1412090900120.14413@pobox.suse.cz>

On Tue, Dec 9, 2014 at 3:00 AM, Jiri Kosina <jkosina@suse.cz> wrote:
> On Fri, 5 Dec 2014, Benjamin Tissoires wrote:
>
>> > If a HID descriptor places HID_DG_CONTACTID before HID_DG_X and HID_DG_Y then
>> > the ABS_X and ABS_Y will not be automatically initialized by the call to
>> > input_mt_init_slots. To ensure that this is not a problem, we relocate that
>> > call to occur after HID parsing has been completed and we've initalized all
>> > the multitouch axes.
>> >
>> > Signed-off-by: Jason Gerecke <killertofu@gmail.com>
>> > ---
>>
>> This one is
>> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
>
> Benjamin, does your Reviewed-by: apply to both 2/3 and 3/3?
>

Hi Jiri,

Well, I wanted to make some cosmetic changes in 3/3 and double check
that it was generic enough, but I've been sidetracked, and today I
have to keep my sick daughter.
Please apply my rev-by on this one only. Feel free to apply 3/3
however - if you can dedicate a little bit of time to check it -
(without my rev-by then), it's not that it will prevent us to change
it later if we have to.

Cheers,
Benjamin

> Thanks,
>
> --
> Jiri Kosina
> SUSE Labs

^ permalink raw reply

* [PATCH] HID: Allow HID_BATTERY_STRENGTH to be enabled
From: Daniel Nicoletti @ 2014-12-09 12:28 UTC (permalink / raw)
  To: jkosina; +Cc: linux-input, linux-kernel, Daniel Nicoletti

Allows for HID_BATTERY_STRENGTH config be enabled
without the need for HID module to be built-in,
prior to this HID and POWER_SUPPLY had to be
equal, and now we only select POWER_SUPPLY and
depend on the HID module.

Signed-off-by: Daniel Nicoletti <dantti12@gmail.com>
---
 drivers/hid/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index f42df4d..602ac07 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -27,7 +27,8 @@ if HID
 
 config HID_BATTERY_STRENGTH
 	bool "Battery level reporting for HID devices"
-	depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY
+	depends on HID
+	select POWER_SUPPLY
 	default n
 	---help---
 	This option adds support of reporting battery strength (for HID devices
-- 
2.1.0

^ permalink raw reply related

* Re: [PATCHv2 1/3] sunxi:dts-bindings:input:ps2 bindings for A10/A20 ps2.
From: Vishnu Patekar @ 2014-12-09 10:21 UTC (permalink / raw)
  To: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw
  Cc: vishnupatekar0510-Re5JQEeQqe8AvxtiuMwx3w,
	dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w,
	linux-lFZ/pmaqli7XmaaqVzeoHQ, leafy.myeh-Q9AEpCAkrSgqDJ6do+/SaQ,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8,
	mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
	galak-sgV2jX0FEOL9JmXXK+q4OQ, devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	linux-input-u79uwXL29TY76Z2rM5mHXA
In-Reply-To: <20141208221509.GM8739@lukather>


[-- Attachment #1.1: Type: text/plain, Size: 2552 bytes --]

Hello,

On Tuesday, December 9, 2014 3:50:05 AM UTC+5:30, Maxime Ripard wrote:
>
> Hi, 
>
> On Sun, Dec 07, 2014 at 04:45:17AM +0530, vishnupatekar wrote: 
> > A10 and A20 have same PS2 addresses, clocks, interrupts. 
> > added compatible as allwinner,sun4i-a10-ps2. 
> > 
> > Signed-off-by: vishnupatekar <VishnuPa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <javascript:>> 
>
> You should have your real name here. 
>
This is my real Name. Vishnu Patekar  :)

>
> > --- 
> >  .../bindings/input/allwinner,sunxi-ps2.txt         |   23 
> ++++++++++++++++++++ 
> >  1 file changed, 23 insertions(+) 
> >  create mode 100644 
> Documentation/devicetree/bindings/input/allwinner,sunxi-ps2.txt 
> > 
> > diff --git 
> a/Documentation/devicetree/bindings/input/allwinner,sunxi-ps2.txt 
> b/Documentation/devicetree/bindings/input/allwinner,sunxi-ps2.txt 
> > new file mode 100644 
> > index 0000000..3a8919a 
> > --- /dev/null 
> > +++ b/Documentation/devicetree/bindings/input/allwinner,sunxi-ps2.txt 
> > @@ -0,0 +1,23 @@ 
> > +* Device tree bindings for Allwinner A10, A20 PS2 host controller 
>
> > +A20 PS2 is dual role controller(PS2 host and PS2 device). These 
> > +bindings are for PS2 host controller. IBM compliant IBM PS2 and 
> > AT-compatible keyboard and mouse can be connected. 
>
> This should be wrapped to 80 chars. 
>
> Okie.
 

> > +Required properties: 
> > + 
> > + - reg             : Offset and length of the register set for the 
> device. 
> > + - compatible      : Should one of the following: 
> > +                     - "allwinner,sun7i-a20-ps2" 
> > +                     - "allwinner,sun4i-a10-ps2" 
> > + - interrupts      : The interrupt line connected to the PS2. 
> > + - clocks          : The gate clk connected to the PS2. 
> > + 
> > + 
> > +Example: 
> > +        ps20: ps2@0x01c2a000 { 
> > +                compatible = "allwinner,sun7i-a20-ps2"; 
> > +                reg = <0x01c2a000 0x400>; 
> > +                interrupts = <0 62 4>; 
> > +                clocks = <&apb1_gates 6>; 
> > +                status = "disabled"; 
> > +        }; 
> > -- 
> > 1.7.9.5 
> > 
>
> -- 
> Maxime Ripard, Free Electrons 
> Embedded Linux, Kernel and Android engineering 
> http://free-electrons.com 
>

-- 
You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
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^ permalink raw reply

* [PATCH v13 10/12] input: cyapa: add gen5 trackpad device read baseline function support
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add read baseline function supported for gen5 trackpad device,
it can be used through sysfs baseline interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/cyapa.h      |   2 +
 drivers/input/mouse/cyapa_gen5.c | 621 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 623 insertions(+)

diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
index eafeb79..39e7941 100644
--- a/drivers/input/mouse/cyapa.h
+++ b/drivers/input/mouse/cyapa.h
@@ -285,6 +285,8 @@ struct cyapa {
 	u8 y_origin;  /* Y Axis Origin: 0 = top; 1 = bottom. */
 	int electrodes_x;  /* Number of electrodes on the X Axis*/
 	int electrodes_y;  /* Number of electrodes on the Y Axis*/
+	int electrodes_rx;  /* Number of Rx electrodes */
+	int algined_electrodes_rx;  /* 4 aligned */
 	int max_z;
 
 	/*
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 47a0543..5bebee1 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -1533,6 +1533,625 @@ static int cyapa_gen5_set_power_mode(struct cyapa *cyapa,
 	return 0;
 }
 
+static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
+{
+	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	/* Try to dump all bufferred data before doing command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	resp_len = 6;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 7,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04))
+		return -EINVAL;
+
+	/* Try to dump all bufferred data when resuming scanning. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	return 0;
+}
+
+static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
+{
+	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	/* Try to dump all bufferred data before doing command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	resp_len = 6;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 7,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03))
+		return -EINVAL;
+
+	/* Try to dump all bufferred data when suspending scanning. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	return 0;
+}
+
+static s32 two_complement_to_s32(s32 value, int num_bits)
+{
+	if (value >> (num_bits - 1))
+		value |=  -1 << num_bits;
+	return value;
+}
+
+static s32 cyapa_parse_structure_data(u8 data_format, u8 *buf, int buf_len)
+{
+	int data_size;
+	bool big_endian;
+	bool unsigned_type;
+	s32 value;
+
+	data_size = (data_format & 0x07);
+	big_endian = ((data_format & 0x10) == 0x00);
+	unsigned_type = ((data_format & 0x20) == 0x00);
+
+	if (buf_len < data_size)
+		return 0;
+
+	switch (data_size) {
+	case 1:
+		value  = buf[0];
+		break;
+	case 2:
+		if (big_endian)
+			value = get_unaligned_be16(buf);
+		else
+			value = get_unaligned_le16(buf);
+		break;
+	case 4:
+		if (big_endian)
+			value = get_unaligned_be32(buf);
+		else
+			value = get_unaligned_le32(buf);
+		break;
+	default:
+		/* Should not happen, just as default case here. */
+		value = 0;
+		break;
+	}
+
+	if (!unsigned_type)
+		value = two_complement_to_s32(value, data_size * 8);
+
+	return value;
+}
+
+
+/*
+ * Read all the global mutual or self idac data or mutual or self local PWC
+ * data based on the @idac_data_type.
+ * If the input value of @data_size is 0, then means read global mutual or
+ * self idac data. For read global mutual idac data, @idac_max, @idac_min and
+ * @idac_ave are in order used to return the max value of global mutual idac
+ * data, the min value of global mutual idac and the average value of the
+ * global mutual idac data. For read global self idac data, @idac_max is used
+ * to return the global self cap idac data in Rx direction, @idac_min is used
+ * to return the global self cap idac data in Tx direction. @idac_ave is not
+ * used.
+ * If the input value of @data_size is not 0, than means read the mutual or
+ * self local PWC data. The @idac_max, @idac_min and @idac_ave are used to
+ * return the max, min and average value of the mutual or self local PWC data.
+ * Note, in order to raed mutual local PWC data, must read invoke this function
+ * to read the mutual global idac data firstly to set the correct Rx number
+ * value, otherwise, the read mutual idac and PWC data may not correct.
+ */
+static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
+		u8 cmd_code, u8 idac_data_type, int *data_size,
+		int *idac_max, int *idac_min, int *idac_ave)
+{
+	int i;
+	u8 cmd[12];
+	u8 resp_data[256];
+	int resp_len;
+	int read_len;
+	int value;
+	u16 offset;
+	int read_elements;
+	bool read_global_idac;
+	int sum, count, max_element_cnt;
+	int tmp_max, tmp_min, tmp_ave, tmp_sum, tmp_count;
+	int electrodes_rx, electrodes_tx;
+	int error;
+
+	if (cmd_code != GEN5_CMD_RETRIEVE_DATA_STRUCTURE ||
+		(idac_data_type != GEN5_RETRIEVE_MUTUAL_PWC_DATA &&
+		idac_data_type != GEN5_RETRIEVE_SELF_CAP_PWC_DATA) ||
+		!data_size || !idac_max || !idac_min || !idac_ave)
+		return -EINVAL;
+
+	*idac_max = INT_MIN;
+	*idac_min = INT_MAX;
+	sum = count = tmp_count = 0;
+	electrodes_rx = electrodes_tx = 0;
+	if (*data_size == 0) {
+		/*
+		 * Read global idac values firstly.
+		 * Currently, no idac data exceed 4 bytes.
+		 */
+		read_global_idac = true;
+		offset = 0;
+		*data_size = 4;
+		tmp_max = INT_MIN;
+		tmp_min = INT_MAX;
+		tmp_ave = tmp_sum = tmp_count = 0;
+
+		if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) {
+			if (cyapa->algined_electrodes_rx == 0) {
+				if (cyapa->electrodes_rx != 0) {
+					electrodes_rx = cyapa->electrodes_rx;
+					electrodes_tx = (cyapa->electrodes_x ==
+						electrodes_rx) ?
+							cyapa->electrodes_y :
+							cyapa->electrodes_x;
+				} else {
+					electrodes_tx = min(cyapa->electrodes_x,
+							cyapa->electrodes_y);
+					electrodes_rx = max(cyapa->electrodes_x,
+							cyapa->electrodes_y);
+				}
+				cyapa->algined_electrodes_rx =
+					(electrodes_rx + 3) & ~3u;
+			}
+			max_element_cnt =
+				(cyapa->algined_electrodes_rx + 7) & ~7u;
+		} else {
+			max_element_cnt = 2;
+		}
+	} else {
+		read_global_idac = false;
+		if (*data_size > 4)
+			*data_size = 4;
+		/* Calculate the start offset in bytes of local PWC data. */
+		if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) {
+			offset = cyapa->algined_electrodes_rx * (*data_size);
+			electrodes_tx =
+				(cyapa->electrodes_rx == cyapa->electrodes_x) ?
+				cyapa->electrodes_y : cyapa->electrodes_x;
+			max_element_cnt = ((cyapa->algined_electrodes_rx + 7) &
+						~7u) * electrodes_tx;
+		} else if (idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) {
+			offset = 2;
+			max_element_cnt = cyapa->electrodes_x +
+						cyapa->electrodes_y;
+			max_element_cnt = (max_element_cnt + 3) & ~3u;
+		}
+	}
+
+	do {
+		read_elements = (256 - 10) / (*data_size);
+		read_elements = min(read_elements, max_element_cnt - count);
+		read_len = read_elements * (*data_size);
+
+		cmd[0] = 0x04;
+		cmd[1] = 0x00;
+		cmd[2] = 0x0a;
+		cmd[3] = 0x00;
+		cmd[4] = GEN5_APP_CMD_REPORT_ID;
+		cmd[5] = 0x00;
+		cmd[6] = cmd_code;
+		put_unaligned_le16(offset, &cmd[7]); /* Read Offset[15:0] */
+		put_unaligned_le16(read_len, &cmd[9]); /* Read Length[15:0] */
+		cmd[11] = idac_data_type;
+		resp_len = 10 + read_len;
+		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+				cmd, 12,
+				resp_data, &resp_len,
+				500, cyapa_gen5_sort_tsg_pip_app_resp_data,
+				true);
+		if (error || resp_len < 10 ||
+				!VALID_CMD_RESP_HEADER(resp_data, cmd_code) ||
+				!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]) ||
+				resp_data[6] != idac_data_type)
+			return (error < 0) ? error : -EAGAIN;
+		read_len = get_unaligned_le16(&resp_data[7]);
+		if (read_len == 0)
+			break;
+
+		*data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK);
+		if (read_len < *data_size)
+			return -EINVAL;
+
+		if (read_global_idac &&
+			idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) {
+			/* Rx's self global idac data. */
+			*idac_max = cyapa_parse_structure_data(
+					resp_data[9], &resp_data[10],
+					*data_size);
+			/* Tx's self global idac data. */
+			*idac_min = cyapa_parse_structure_data(
+					resp_data[9],
+					&resp_data[10 + *data_size],
+					*data_size);
+			break;
+		}
+
+		/* Read mutual global idac or local mutual/self PWC data. */
+		offset += read_len;
+		for (i = 10; i < (read_len + 10); i += *data_size) {
+			value = cyapa_parse_structure_data(resp_data[9],
+					&resp_data[i], *data_size);
+			*idac_min = min(value, *idac_min);
+			*idac_max = max(value, *idac_max);
+
+			if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA &&
+				tmp_count < cyapa->algined_electrodes_rx &&
+				read_global_idac) {
+				/*
+				 * The value gap betwen global and local mutual
+				 * idac data must bigger than 50%.
+				 * Normally, global value bigger than 50,
+				 * local values less than 10.
+				 */
+				if (!tmp_ave || value > tmp_ave / 2) {
+					tmp_min = min(value, tmp_min);
+					tmp_max = max(value, tmp_max);
+					tmp_sum += value;
+					tmp_count++;
+
+					tmp_ave = tmp_sum / tmp_count;
+				}
+			}
+
+			sum += value;
+			count++;
+
+			if (count >= max_element_cnt)
+				goto out;
+		}
+	} while (true);
+
+out:
+	*idac_ave = count ? (sum / count) : 0;
+
+	if (read_global_idac &&
+		idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) {
+		if (tmp_count == 0)
+			return 0;
+
+		if (tmp_count == cyapa->algined_electrodes_rx) {
+			cyapa->electrodes_rx = cyapa->electrodes_rx ?
+				cyapa->electrodes_rx : electrodes_rx;
+		} else if (tmp_count == electrodes_rx) {
+			cyapa->electrodes_rx = cyapa->electrodes_rx ?
+				cyapa->electrodes_rx : electrodes_rx;
+			cyapa->algined_electrodes_rx = electrodes_rx;
+		} else {
+			cyapa->electrodes_rx = cyapa->electrodes_rx ?
+				cyapa->electrodes_rx : electrodes_tx;
+			cyapa->algined_electrodes_rx = tmp_count;
+		}
+
+		*idac_min = tmp_min;
+		*idac_max = tmp_max;
+		*idac_ave = tmp_ave;
+	}
+
+	return 0;
+}
+
+static int cyapa_gen5_read_mutual_idac_data(struct cyapa *cyapa,
+	int *gidac_mutual_max, int *gidac_mutual_min, int *gidac_mutual_ave,
+	int *lidac_mutual_max, int *lidac_mutual_min, int *lidac_mutual_ave)
+{
+	int error;
+	int data_size;
+
+	*gidac_mutual_max = *gidac_mutual_min = *gidac_mutual_ave = 0;
+	*lidac_mutual_max = *lidac_mutual_min = *lidac_mutual_ave = 0;
+
+	data_size = 0;
+	error = cyapa_gen5_read_idac_data(cyapa,
+		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		GEN5_RETRIEVE_MUTUAL_PWC_DATA,
+		&data_size,
+		gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave);
+	if (error)
+		return error;
+
+	error = cyapa_gen5_read_idac_data(cyapa,
+		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		GEN5_RETRIEVE_MUTUAL_PWC_DATA,
+		&data_size,
+		lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave);
+	return error;
+}
+
+static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa,
+		int *gidac_self_rx, int *gidac_self_tx,
+		int *lidac_self_max, int *lidac_self_min, int *lidac_self_ave)
+{
+	int error;
+	int data_size;
+
+	*gidac_self_rx = *gidac_self_tx = 0;
+	*lidac_self_max = *lidac_self_min = *lidac_self_ave = 0;
+
+	data_size = 0;
+	error = cyapa_gen5_read_idac_data(cyapa,
+		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		GEN5_RETRIEVE_SELF_CAP_PWC_DATA,
+		&data_size,
+		lidac_self_max, lidac_self_min, lidac_self_ave);
+	if (error)
+		return error;
+	*gidac_self_rx = *lidac_self_max;
+	*gidac_self_tx = *lidac_self_min;
+
+	error = cyapa_gen5_read_idac_data(cyapa,
+		GEN5_CMD_RETRIEVE_DATA_STRUCTURE,
+		GEN5_RETRIEVE_SELF_CAP_PWC_DATA,
+		&data_size,
+		lidac_self_max, lidac_self_min, lidac_self_ave);
+	return error;
+}
+
+static ssize_t cyapa_gen5_execute_panel_scan(struct cyapa *cyapa)
+{
+	int error;
+	u8 cmd[7];
+	u8 resp_data[6];
+	int resp_len;
+
+	cmd[0] = 0x04;
+	cmd[1] = 0x00;
+	cmd[2] = 0x05;
+	cmd[3] = 0x00;
+	cmd[4] = GEN5_APP_CMD_REPORT_ID;
+	cmd[5] = 0x00;
+	cmd[6] = GEN5_CMD_EXECUTE_PANEL_SCAN;  /* Command code */
+	resp_len = 6;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 7,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || resp_len != 6 ||
+			!VALID_CMD_RESP_HEADER(resp_data,
+				GEN5_CMD_EXECUTE_PANEL_SCAN) ||
+			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+		return error ? error : -EAGAIN;
+
+	return 0;
+}
+
+static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa,
+		u8 cmd_code, u8 raw_data_type, int raw_data_max_num,
+		int *raw_data_max, int *raw_data_min, int *raw_data_ave,
+		u8 *buffer)
+{
+	int i;
+	u8 cmd[12];
+	u8 resp_data[256];  /* Max bytes can transfer one time. */
+	int resp_len;
+	int read_elements;
+	int read_len;
+	u16 offset;
+	s32 value;
+	int sum, count;
+	int data_size;
+	s32 *intp;
+	int error;
+
+	if (cmd_code != GEN5_CMD_RETRIEVE_PANEL_SCAN ||
+		(raw_data_type > GEN5_PANEL_SCAN_SELF_DIFFCOUNT) ||
+		!raw_data_max || !raw_data_min || !raw_data_ave)
+		return -EINVAL;
+
+	intp = (s32 *)buffer;
+	*raw_data_max = INT_MIN;
+	*raw_data_min = INT_MAX;
+	sum = count = 0;
+	offset = 0;
+	read_elements = (256 - 10) / 4;  /* Currently, max element size is 4. */
+	read_len = read_elements * 4;
+	do {
+		cmd[0] = 0x04;
+		cmd[1] = 0x00;
+		cmd[2] = 0x0a;
+		cmd[3] = 0x00;
+		cmd[4] = GEN5_APP_CMD_REPORT_ID;
+		cmd[5] = 0x00;
+		cmd[6] = cmd_code;  /* Command code */
+		put_unaligned_le16(offset, &cmd[7]);
+		put_unaligned_le16(read_elements, &cmd[9]);
+		cmd[11] = raw_data_type;
+		resp_len = 10 + read_len;
+
+		error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 12,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+		if (error || resp_len < 10 ||
+				!VALID_CMD_RESP_HEADER(resp_data, cmd_code) ||
+				!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]) ||
+				resp_data[6] != raw_data_type)
+			return error ? error : -EAGAIN;
+
+		read_elements = get_unaligned_le16(&resp_data[7]);
+		if (read_elements == 0)
+			break;
+
+		data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK);
+		offset += read_elements;
+		if (read_elements) {
+			for (i = 10;
+			     i < (read_elements * data_size + 10);
+			     i += data_size) {
+				value = cyapa_parse_structure_data(resp_data[9],
+						&resp_data[i], data_size);
+				*raw_data_min = min(value, *raw_data_min);
+				*raw_data_max = max(value, *raw_data_max);
+
+				if (intp)
+					put_unaligned_le32(value, &intp[count]);
+
+				sum += value;
+				count++;
+
+			}
+		}
+
+		if (count >= raw_data_max_num)
+			break;
+
+		read_elements = (sizeof(resp_data) - 10) / data_size;
+		read_len = read_elements * data_size;
+	} while (true);
+
+	*raw_data_ave = count ? (sum / count) : 0;
+
+	return 0;
+}
+
+static ssize_t cyapa_gen5_show_baseline(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct cyapa *cyapa = dev_get_drvdata(dev);
+	int gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave;
+	int lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave;
+	int gidac_self_rx, gidac_self_tx;
+	int lidac_self_max, lidac_self_min, lidac_self_ave;
+	int raw_cap_mutual_max, raw_cap_mutual_min, raw_cap_mutual_ave;
+	int raw_cap_self_max, raw_cap_self_min, raw_cap_self_ave;
+	int mutual_diffdata_max, mutual_diffdata_min, mutual_diffdata_ave;
+	int self_diffdata_max, self_diffdata_min, self_diffdata_ave;
+	int mutual_baseline_max, mutual_baseline_min, mutual_baseline_ave;
+	int self_baseline_max, self_baseline_min, self_baseline_ave;
+	int error, resume_error;
+	int size;
+
+	if (cyapa->state != CYAPA_STATE_GEN5_APP)
+		return -EBUSY;
+
+	/* 1. Suspend Scanning*/
+	error = cyapa_gen5_suspend_scanning(cyapa);
+	if (error)
+		return error;
+
+	/* 2.  Read global and local mutual IDAC data. */
+	gidac_self_rx = gidac_self_tx = 0;
+	error = cyapa_gen5_read_mutual_idac_data(cyapa,
+				&gidac_mutual_max, &gidac_mutual_min,
+				&gidac_mutual_ave, &lidac_mutual_max,
+				&lidac_mutual_min, &lidac_mutual_ave);
+	if (error)
+		goto resume_scanning;
+
+	/* 3.  Read global and local self IDAC data. */
+	error = cyapa_gen5_read_self_idac_data(cyapa,
+				&gidac_self_rx, &gidac_self_tx,
+				&lidac_self_max, &lidac_self_min,
+				&lidac_self_ave);
+	if (error)
+		goto resume_scanning;
+
+	/* 4. Execuate panel scan. It must be executed before read data. */
+	error = cyapa_gen5_execute_panel_scan(cyapa);
+	if (error)
+		goto resume_scanning;
+
+	/* 5. Retrieve panel scan, mutual cap raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_MUTUAL_RAW_DATA,
+				cyapa->electrodes_x * cyapa->electrodes_y,
+				&raw_cap_mutual_max, &raw_cap_mutual_min,
+				&raw_cap_mutual_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+	/* 6. Retrieve panel scan, self cap raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_SELF_RAW_DATA,
+				cyapa->electrodes_x + cyapa->electrodes_y,
+				&raw_cap_self_max, &raw_cap_self_min,
+				&raw_cap_self_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+	/* 7. Retrieve panel scan, mutual cap diffcount raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_MUTUAL_DIFFCOUNT,
+				cyapa->electrodes_x * cyapa->electrodes_y,
+				&mutual_diffdata_max, &mutual_diffdata_min,
+				&mutual_diffdata_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+	/* 8. Retrieve panel scan, self cap diffcount raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_SELF_DIFFCOUNT,
+				cyapa->electrodes_x + cyapa->electrodes_y,
+				&self_diffdata_max, &self_diffdata_min,
+				&self_diffdata_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+	/* 9. Retrieve panel scan, mutual cap baseline raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_MUTUAL_BASELINE,
+				cyapa->electrodes_x * cyapa->electrodes_y,
+				&mutual_baseline_max, &mutual_baseline_min,
+				&mutual_baseline_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+	/* 10. Retrieve panel scan, self cap baseline raw data. */
+	error = cyapa_gen5_read_panel_scan_raw_data(cyapa,
+				GEN5_CMD_RETRIEVE_PANEL_SCAN,
+				GEN5_PANEL_SCAN_SELF_BASELINE,
+				cyapa->electrodes_x + cyapa->electrodes_y,
+				&self_baseline_max, &self_baseline_min,
+				&self_baseline_ave,
+				NULL);
+	if (error)
+		goto resume_scanning;
+
+resume_scanning:
+	/* 11. Resume Scanning*/
+	resume_error = cyapa_gen5_resume_scanning(cyapa);
+	if (resume_error || error)
+		return resume_error ? resume_error : error;
+
+	/* 12. Output data strings */
+	size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d %d %d %d %d %d ",
+		gidac_mutual_min, gidac_mutual_max, gidac_mutual_ave,
+		lidac_mutual_min, lidac_mutual_max, lidac_mutual_ave,
+		gidac_self_rx, gidac_self_tx,
+		lidac_self_min, lidac_self_max, lidac_self_ave);
+	size += scnprintf(buf + size, PAGE_SIZE - size,
+		"%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n",
+		raw_cap_mutual_min, raw_cap_mutual_max, raw_cap_mutual_ave,
+		raw_cap_self_min, raw_cap_self_max, raw_cap_self_ave,
+		mutual_diffdata_min, mutual_diffdata_max, mutual_diffdata_ave,
+		self_diffdata_min, self_diffdata_max, self_diffdata_ave,
+		mutual_baseline_min, mutual_baseline_max, mutual_baseline_ave,
+		self_baseline_min, self_baseline_max, self_baseline_ave);
+	return size;
+}
+
 static bool cyapa_gen5_sort_system_info_data(struct cyapa *cyapa,
 		u8 *buf, int len)
 {
@@ -1938,6 +2557,8 @@ const struct cyapa_dev_ops cyapa_gen5_ops = {
 	.bl_initiate = cyapa_gen5_bl_initiate,
 	.update_fw = cyapa_gen5_do_fw_update,
 
+	.show_baseline = cyapa_gen5_show_baseline,
+
 	.initialize = cyapa_gen5_initialize,
 
 	.state_parse = cyapa_gen5_state_parse,
-- 
1.9.1


^ permalink raw reply related

* [PATCH v13 01/12] input: cyapa: re-design driver to support multi-trackpad in one driver
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyapa driver is re-designed
with one cyapa driver core and multiple device specific functions component.
The cyapa driver core is contained in this patch, it supplies basic functions
that working with kernel and input subsystem, and also supplies the interfaces
that the specific devices' component can connect and work together with as
one driver.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/Makefile     |    3 +-
 drivers/input/mouse/cyapa.c      | 1050 ++++++++++++++------------------------
 drivers/input/mouse/cyapa.h      |  316 ++++++++++++
 drivers/input/mouse/cyapa_gen3.c |  793 ++++++++++++++++++++++++++++
 4 files changed, 1498 insertions(+), 664 deletions(-)
 create mode 100644 drivers/input/mouse/cyapa.h
 create mode 100644 drivers/input/mouse/cyapa_gen3.c

diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 560003d..8bd950d 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -8,7 +8,7 @@ obj-$(CONFIG_MOUSE_AMIGA)		+= amimouse.o
 obj-$(CONFIG_MOUSE_APPLETOUCH)		+= appletouch.o
 obj-$(CONFIG_MOUSE_ATARI)		+= atarimouse.o
 obj-$(CONFIG_MOUSE_BCM5974)		+= bcm5974.o
-obj-$(CONFIG_MOUSE_CYAPA)		+= cyapa.o
+obj-$(CONFIG_MOUSE_CYAPA)		+= cyapatp.o
 obj-$(CONFIG_MOUSE_ELAN_I2C)		+= elan_i2c.o
 obj-$(CONFIG_MOUSE_GPIO)		+= gpio_mouse.o
 obj-$(CONFIG_MOUSE_INPORT)		+= inport.o
@@ -24,6 +24,7 @@ obj-$(CONFIG_MOUSE_SYNAPTICS_I2C)	+= synaptics_i2c.o
 obj-$(CONFIG_MOUSE_SYNAPTICS_USB)	+= synaptics_usb.o
 obj-$(CONFIG_MOUSE_VSXXXAA)		+= vsxxxaa.o
 
+cyapatp-objs := cyapa.o cyapa_gen3.o
 psmouse-objs := psmouse-base.o synaptics.o focaltech.o
 
 psmouse-$(CONFIG_MOUSE_PS2_ALPS)	+= alps.o
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 1bece8c..ec25445 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -20,408 +20,107 @@
 #include <linux/input/mt.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/uaccess.h>
+#include "cyapa.h"
 
-/* APA trackpad firmware generation */
-#define CYAPA_GEN3   0x03   /* support MT-protocol B with tracking ID. */
-
-#define CYAPA_NAME   "Cypress APA Trackpad (cyapa)"
-
-/* commands for read/write registers of Cypress trackpad */
-#define CYAPA_CMD_SOFT_RESET       0x00
-#define CYAPA_CMD_POWER_MODE       0x01
-#define CYAPA_CMD_DEV_STATUS       0x02
-#define CYAPA_CMD_GROUP_DATA       0x03
-#define CYAPA_CMD_GROUP_CMD        0x04
-#define CYAPA_CMD_GROUP_QUERY      0x05
-#define CYAPA_CMD_BL_STATUS        0x06
-#define CYAPA_CMD_BL_HEAD          0x07
-#define CYAPA_CMD_BL_CMD           0x08
-#define CYAPA_CMD_BL_DATA          0x09
-#define CYAPA_CMD_BL_ALL           0x0a
-#define CYAPA_CMD_BLK_PRODUCT_ID   0x0b
-#define CYAPA_CMD_BLK_HEAD         0x0c
-
-/* report data start reg offset address. */
-#define DATA_REG_START_OFFSET  0x0000
-
-#define BL_HEAD_OFFSET 0x00
-#define BL_DATA_OFFSET 0x10
-
-/*
- * Operational Device Status Register
- *
- * bit 7: Valid interrupt source
- * bit 6 - 4: Reserved
- * bit 3 - 2: Power status
- * bit 1 - 0: Device status
- */
-#define REG_OP_STATUS     0x00
-#define OP_STATUS_SRC     0x80
-#define OP_STATUS_POWER   0x0c
-#define OP_STATUS_DEV     0x03
-#define OP_STATUS_MASK (OP_STATUS_SRC | OP_STATUS_POWER | OP_STATUS_DEV)
-
-/*
- * Operational Finger Count/Button Flags Register
- *
- * bit 7 - 4: Number of touched finger
- * bit 3: Valid data
- * bit 2: Middle Physical Button
- * bit 1: Right Physical Button
- * bit 0: Left physical Button
- */
-#define REG_OP_DATA1       0x01
-#define OP_DATA_VALID      0x08
-#define OP_DATA_MIDDLE_BTN 0x04
-#define OP_DATA_RIGHT_BTN  0x02
-#define OP_DATA_LEFT_BTN   0x01
-#define OP_DATA_BTN_MASK (OP_DATA_MIDDLE_BTN | OP_DATA_RIGHT_BTN | \
-			  OP_DATA_LEFT_BTN)
-
-/*
- * Bootloader Status Register
- *
- * bit 7: Busy
- * bit 6 - 5: Reserved
- * bit 4: Bootloader running
- * bit 3 - 1: Reserved
- * bit 0: Checksum valid
- */
-#define REG_BL_STATUS        0x01
-#define BL_STATUS_BUSY       0x80
-#define BL_STATUS_RUNNING    0x10
-#define BL_STATUS_DATA_VALID 0x08
-#define BL_STATUS_CSUM_VALID 0x01
-
-/*
- * Bootloader Error Register
- *
- * bit 7: Invalid
- * bit 6: Invalid security key
- * bit 5: Bootloading
- * bit 4: Command checksum
- * bit 3: Flash protection error
- * bit 2: Flash checksum error
- * bit 1 - 0: Reserved
- */
-#define REG_BL_ERROR         0x02
-#define BL_ERROR_INVALID     0x80
-#define BL_ERROR_INVALID_KEY 0x40
-#define BL_ERROR_BOOTLOADING 0x20
-#define BL_ERROR_CMD_CSUM    0x10
-#define BL_ERROR_FLASH_PROT  0x08
-#define BL_ERROR_FLASH_CSUM  0x04
-
-#define BL_STATUS_SIZE  3  /* length of bootloader status registers */
-#define BLK_HEAD_BYTES 32
-
-#define PRODUCT_ID_SIZE  16
-#define QUERY_DATA_SIZE  27
-#define REG_PROTOCOL_GEN_QUERY_OFFSET  20
-
-#define REG_OFFSET_DATA_BASE     0x0000
-#define REG_OFFSET_COMMAND_BASE  0x0028
-#define REG_OFFSET_QUERY_BASE    0x002a
-
-#define CAPABILITY_LEFT_BTN_MASK	(0x01 << 3)
-#define CAPABILITY_RIGHT_BTN_MASK	(0x01 << 4)
-#define CAPABILITY_MIDDLE_BTN_MASK	(0x01 << 5)
-#define CAPABILITY_BTN_MASK  (CAPABILITY_LEFT_BTN_MASK | \
-			      CAPABILITY_RIGHT_BTN_MASK | \
-			      CAPABILITY_MIDDLE_BTN_MASK)
-
-#define CYAPA_OFFSET_SOFT_RESET  REG_OFFSET_COMMAND_BASE
-
-#define REG_OFFSET_POWER_MODE (REG_OFFSET_COMMAND_BASE + 1)
-
-#define PWR_MODE_MASK   0xfc
-#define PWR_MODE_FULL_ACTIVE (0x3f << 2)
-#define PWR_MODE_IDLE        (0x05 << 2) /* default sleep time is 50 ms. */
-#define PWR_MODE_OFF         (0x00 << 2)
-
-#define PWR_STATUS_MASK      0x0c
-#define PWR_STATUS_ACTIVE    (0x03 << 2)
-#define PWR_STATUS_IDLE      (0x02 << 2)
-#define PWR_STATUS_OFF       (0x00 << 2)
-
-/*
- * CYAPA trackpad device states.
- * Used in register 0x00, bit1-0, DeviceStatus field.
- * Other values indicate device is in an abnormal state and must be reset.
- */
-#define CYAPA_DEV_NORMAL  0x03
-#define CYAPA_DEV_BUSY    0x01
-
-enum cyapa_state {
-	CYAPA_STATE_OP,
-	CYAPA_STATE_BL_IDLE,
-	CYAPA_STATE_BL_ACTIVE,
-	CYAPA_STATE_BL_BUSY,
-	CYAPA_STATE_NO_DEVICE,
-};
-
-
-struct cyapa_touch {
-	/*
-	 * high bits or x/y position value
-	 * bit 7 - 4: high 4 bits of x position value
-	 * bit 3 - 0: high 4 bits of y position value
-	 */
-	u8 xy_hi;
-	u8 x_lo;  /* low 8 bits of x position value. */
-	u8 y_lo;  /* low 8 bits of y position value. */
-	u8 pressure;
-	/* id range is 1 - 15.  It is incremented with every new touch. */
-	u8 id;
-} __packed;
-
-/* The touch.id is used as the MT slot id, thus max MT slot is 15 */
-#define CYAPA_MAX_MT_SLOTS  15
-
-struct cyapa_reg_data {
-	/*
-	 * bit 0 - 1: device status
-	 * bit 3 - 2: power mode
-	 * bit 6 - 4: reserved
-	 * bit 7: interrupt valid bit
-	 */
-	u8 device_status;
-	/*
-	 * bit 7 - 4: number of fingers currently touching pad
-	 * bit 3: valid data check bit
-	 * bit 2: middle mechanism button state if exists
-	 * bit 1: right mechanism button state if exists
-	 * bit 0: left mechanism button state if exists
-	 */
-	u8 finger_btn;
-	/* CYAPA reports up to 5 touches per packet. */
-	struct cyapa_touch touches[5];
-} __packed;
-
-/* The main device structure */
-struct cyapa {
-	enum cyapa_state state;
-
-	struct i2c_client *client;
-	struct input_dev *input;
-	char phys[32];	/* device physical location */
-	bool irq_wake;  /* irq wake is enabled */
-	bool smbus;
-
-	/* read from query data region. */
-	char product_id[16];
-	u8 btn_capability;
-	u8 gen;
-	int max_abs_x;
-	int max_abs_y;
-	int physical_size_x;
-	int physical_size_y;
-};
-
-static const u8 bl_deactivate[] = { 0x00, 0xff, 0x3b, 0x00, 0x01, 0x02, 0x03,
-		0x04, 0x05, 0x06, 0x07 };
-static const u8 bl_exit[] = { 0x00, 0xff, 0xa5, 0x00, 0x01, 0x02, 0x03, 0x04,
-		0x05, 0x06, 0x07 };
-
-struct cyapa_cmd_len {
-	u8 cmd;
-	u8 len;
-};
 
 #define CYAPA_ADAPTER_FUNC_NONE   0
 #define CYAPA_ADAPTER_FUNC_I2C    1
 #define CYAPA_ADAPTER_FUNC_SMBUS  2
 #define CYAPA_ADAPTER_FUNC_BOTH   3
 
-/*
- * macros for SMBus communication
- */
-#define SMBUS_READ   0x01
-#define SMBUS_WRITE 0x00
-#define SMBUS_ENCODE_IDX(cmd, idx) ((cmd) | (((idx) & 0x03) << 1))
-#define SMBUS_ENCODE_RW(cmd, rw) ((cmd) | ((rw) & 0x01))
-#define SMBUS_BYTE_BLOCK_CMD_MASK 0x80
-#define SMBUS_GROUP_BLOCK_CMD_MASK 0x40
-
- /* for byte read/write command */
-#define CMD_RESET 0
-#define CMD_POWER_MODE 1
-#define CMD_DEV_STATUS 2
-#define SMBUS_BYTE_CMD(cmd) (((cmd) & 0x3f) << 1)
-#define CYAPA_SMBUS_RESET SMBUS_BYTE_CMD(CMD_RESET)
-#define CYAPA_SMBUS_POWER_MODE SMBUS_BYTE_CMD(CMD_POWER_MODE)
-#define CYAPA_SMBUS_DEV_STATUS SMBUS_BYTE_CMD(CMD_DEV_STATUS)
-
- /* for group registers read/write command */
-#define REG_GROUP_DATA 0
-#define REG_GROUP_CMD 2
-#define REG_GROUP_QUERY 3
-#define SMBUS_GROUP_CMD(grp) (0x80 | (((grp) & 0x07) << 3))
-#define CYAPA_SMBUS_GROUP_DATA SMBUS_GROUP_CMD(REG_GROUP_DATA)
-#define CYAPA_SMBUS_GROUP_CMD SMBUS_GROUP_CMD(REG_GROUP_CMD)
-#define CYAPA_SMBUS_GROUP_QUERY SMBUS_GROUP_CMD(REG_GROUP_QUERY)
-
- /* for register block read/write command */
-#define CMD_BL_STATUS 0
-#define CMD_BL_HEAD 1
-#define CMD_BL_CMD 2
-#define CMD_BL_DATA 3
-#define CMD_BL_ALL 4
-#define CMD_BLK_PRODUCT_ID 5
-#define CMD_BLK_HEAD 6
-#define SMBUS_BLOCK_CMD(cmd) (0xc0 | (((cmd) & 0x1f) << 1))
-
-/* register block read/write command in bootloader mode */
-#define CYAPA_SMBUS_BL_STATUS SMBUS_BLOCK_CMD(CMD_BL_STATUS)
-#define CYAPA_SMBUS_BL_HEAD SMBUS_BLOCK_CMD(CMD_BL_HEAD)
-#define CYAPA_SMBUS_BL_CMD SMBUS_BLOCK_CMD(CMD_BL_CMD)
-#define CYAPA_SMBUS_BL_DATA SMBUS_BLOCK_CMD(CMD_BL_DATA)
-#define CYAPA_SMBUS_BL_ALL SMBUS_BLOCK_CMD(CMD_BL_ALL)
-
-/* register block read/write command in operational mode */
-#define CYAPA_SMBUS_BLK_PRODUCT_ID SMBUS_BLOCK_CMD(CMD_BLK_PRODUCT_ID)
-#define CYAPA_SMBUS_BLK_HEAD SMBUS_BLOCK_CMD(CMD_BLK_HEAD)
-
-static const struct cyapa_cmd_len cyapa_i2c_cmds[] = {
-	{ CYAPA_OFFSET_SOFT_RESET, 1 },
-	{ REG_OFFSET_COMMAND_BASE + 1, 1 },
-	{ REG_OFFSET_DATA_BASE, 1 },
-	{ REG_OFFSET_DATA_BASE, sizeof(struct cyapa_reg_data) },
-	{ REG_OFFSET_COMMAND_BASE, 0 },
-	{ REG_OFFSET_QUERY_BASE, QUERY_DATA_SIZE },
-	{ BL_HEAD_OFFSET, 3 },
-	{ BL_HEAD_OFFSET, 16 },
-	{ BL_HEAD_OFFSET, 16 },
-	{ BL_DATA_OFFSET, 16 },
-	{ BL_HEAD_OFFSET, 32 },
-	{ REG_OFFSET_QUERY_BASE, PRODUCT_ID_SIZE },
-	{ REG_OFFSET_DATA_BASE, 32 }
-};
+const char unique_str[] = "CYTRA";
 
-static const struct cyapa_cmd_len cyapa_smbus_cmds[] = {
-	{ CYAPA_SMBUS_RESET, 1 },
-	{ CYAPA_SMBUS_POWER_MODE, 1 },
-	{ CYAPA_SMBUS_DEV_STATUS, 1 },
-	{ CYAPA_SMBUS_GROUP_DATA, sizeof(struct cyapa_reg_data) },
-	{ CYAPA_SMBUS_GROUP_CMD, 2 },
-	{ CYAPA_SMBUS_GROUP_QUERY, QUERY_DATA_SIZE },
-	{ CYAPA_SMBUS_BL_STATUS, 3 },
-	{ CYAPA_SMBUS_BL_HEAD, 16 },
-	{ CYAPA_SMBUS_BL_CMD, 16 },
-	{ CYAPA_SMBUS_BL_DATA, 16 },
-	{ CYAPA_SMBUS_BL_ALL, 32 },
-	{ CYAPA_SMBUS_BLK_PRODUCT_ID, PRODUCT_ID_SIZE },
-	{ CYAPA_SMBUS_BLK_HEAD, 16 },
-};
+static int cyapa_reinitialize(struct cyapa *cyapa);
 
-static ssize_t cyapa_i2c_reg_read_block(struct cyapa *cyapa, u8 reg, size_t len,
+/* Returns 0 on success, else negative errno on failure. */
+ssize_t cyapa_i2c_read(struct cyapa *cyapa, u8 reg, size_t len,
 					u8 *values)
 {
-	return i2c_smbus_read_i2c_block_data(cyapa->client, reg, len, values);
-}
+	int ret;
+	struct i2c_client *client = cyapa->client;
+	struct i2c_msg msgs[] = {
+		{
+			.addr = client->addr,
+			.flags = 0,
+			.len = 1,
+			.buf = &reg,
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = values,
+		},
+	};
+
+	ret = i2c_transfer(client->adapter, msgs, 2);
+
+	if (ret != ARRAY_SIZE(msgs))
+		return ret < 0 ? ret : -EIO;
 
-static ssize_t cyapa_i2c_reg_write_block(struct cyapa *cyapa, u8 reg,
-					 size_t len, const u8 *values)
-{
-	return i2c_smbus_write_i2c_block_data(cyapa->client, reg, len, values);
+	return 0;
 }
 
-/*
- * cyapa_smbus_read_block - perform smbus block read command
- * @cyapa  - private data structure of the driver
- * @cmd    - the properly encoded smbus command
- * @len    - expected length of smbus command result
- * @values - buffer to store smbus command result
- *
- * Returns negative errno, else the number of bytes written.
+/**
+ * cyapa_i2c_write - Execute i2c block data write operation
+ * @cyapa: Handle to this driver
+ * @ret: Offset of the data to written in the register map
+ * @len: number of bytes to write
+ * @values: Data to be written
  *
- * Note:
- * In trackpad device, the memory block allocated for I2C register map
- * is 256 bytes, so the max read block for I2C bus is 256 bytes.
+ * Return negative errno code on error; return zero when success.
  */
-static ssize_t cyapa_smbus_read_block(struct cyapa *cyapa, u8 cmd, size_t len,
-				      u8 *values)
+ssize_t cyapa_i2c_write(struct cyapa *cyapa, u8 reg,
+					 size_t len, const void *values)
 {
-	ssize_t ret;
-	u8 index;
-	u8 smbus_cmd;
-	u8 *buf;
+	int ret;
 	struct i2c_client *client = cyapa->client;
+	char data[32], *buf;
 
-	if (!(SMBUS_BYTE_BLOCK_CMD_MASK & cmd))
-		return -EINVAL;
-
-	if (SMBUS_GROUP_BLOCK_CMD_MASK & cmd) {
-		/* read specific block registers command. */
-		smbus_cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
-		ret = i2c_smbus_read_block_data(client, smbus_cmd, values);
-		goto out;
-	}
-
-	ret = 0;
-	for (index = 0; index * I2C_SMBUS_BLOCK_MAX < len; index++) {
-		smbus_cmd = SMBUS_ENCODE_IDX(cmd, index);
-		smbus_cmd = SMBUS_ENCODE_RW(smbus_cmd, SMBUS_READ);
-		buf = values + I2C_SMBUS_BLOCK_MAX * index;
-		ret = i2c_smbus_read_block_data(client, smbus_cmd, buf);
-		if (ret < 0)
-			goto out;
-	}
-
-out:
-	return ret > 0 ? len : ret;
-}
-
-static s32 cyapa_read_byte(struct cyapa *cyapa, u8 cmd_idx)
-{
-	u8 cmd;
-
-	if (cyapa->smbus) {
-		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
-		cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
+	if (len > 31) {
+		buf = kzalloc(len + 1, GFP_KERNEL);
+		if (!buf)
+			return -ENOMEM;
 	} else {
-		cmd = cyapa_i2c_cmds[cmd_idx].cmd;
+		buf = data;
 	}
-	return i2c_smbus_read_byte_data(cyapa->client, cmd);
-}
 
-static s32 cyapa_write_byte(struct cyapa *cyapa, u8 cmd_idx, u8 value)
-{
-	u8 cmd;
+	buf[0] = reg;
+	memcpy(&buf[1], values, len);
+	ret = i2c_master_send(client, buf, len + 1);
 
-	if (cyapa->smbus) {
-		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
-		cmd = SMBUS_ENCODE_RW(cmd, SMBUS_WRITE);
-	} else {
-		cmd = cyapa_i2c_cmds[cmd_idx].cmd;
-	}
-	return i2c_smbus_write_byte_data(cyapa->client, cmd, value);
+	if (buf != data)
+		kfree(buf);
+	return (ret == (len + 1)) ? 0 : ((ret < 0) ? ret : -EIO);
 }
 
-static ssize_t cyapa_read_block(struct cyapa *cyapa, u8 cmd_idx, u8 *values)
+static u8 cyapa_check_adapter_functionality(struct i2c_client *client)
 {
-	u8 cmd;
-	size_t len;
+	u8 ret = CYAPA_ADAPTER_FUNC_NONE;
 
-	if (cyapa->smbus) {
-		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
-		len = cyapa_smbus_cmds[cmd_idx].len;
-		return cyapa_smbus_read_block(cyapa, cmd, len, values);
-	} else {
-		cmd = cyapa_i2c_cmds[cmd_idx].cmd;
-		len = cyapa_i2c_cmds[cmd_idx].len;
-		return cyapa_i2c_reg_read_block(cyapa, cmd, len, values);
-	}
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		ret |= CYAPA_ADAPTER_FUNC_I2C;
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_BLOCK_DATA |
+				     I2C_FUNC_SMBUS_I2C_BLOCK))
+		ret |= CYAPA_ADAPTER_FUNC_SMBUS;
+	return ret;
 }
 
 /*
  * Query device for its current operating state.
- *
  */
 static int cyapa_get_state(struct cyapa *cyapa)
 {
 	u8 status[BL_STATUS_SIZE];
+	u8 cmd[32];
+	/* The i2c address of gen4 and gen5 trackpad device must be even. */
+	bool even_addr = ((cyapa->client->addr & 0x0001) == 0);
+	bool smbus = false;
+	int retries = 2;
 	int error;
 
 	cyapa->state = CYAPA_STATE_NO_DEVICE;
@@ -433,39 +132,64 @@ static int cyapa_get_state(struct cyapa *cyapa)
 	 *
 	 */
 	error = cyapa_i2c_reg_read_block(cyapa, BL_HEAD_OFFSET, BL_STATUS_SIZE,
-				         status);
+				       status);
 
 	/*
 	 * On smbus systems in OP mode, the i2c_reg_read will fail with
 	 * -ETIMEDOUT.  In this case, try again using the smbus equivalent
 	 * command.  This should return a BL_HEAD indicating CYAPA_STATE_OP.
 	 */
-	if (cyapa->smbus && (error == -ETIMEDOUT || error == -ENXIO))
-		error = cyapa_read_block(cyapa, CYAPA_CMD_BL_STATUS, status);
+	if (cyapa->smbus && (error == -ETIMEDOUT || error == -ENXIO)) {
+		if (!even_addr)
+			error = cyapa_read_block(cyapa,
+					CYAPA_CMD_BL_STATUS, status);
+		smbus = true;
+	}
 
 	if (error != BL_STATUS_SIZE)
 		goto error;
 
-	if ((status[REG_OP_STATUS] & OP_STATUS_SRC) == OP_STATUS_SRC) {
-		switch (status[REG_OP_STATUS] & OP_STATUS_DEV) {
-		case CYAPA_DEV_NORMAL:
-		case CYAPA_DEV_BUSY:
-			cyapa->state = CYAPA_STATE_OP;
-			break;
-		default:
-			error = -EAGAIN;
-			goto error;
+	/*
+	 * Detect trackpad protocol based on characristic registers and bits.
+	 */
+	do {
+		cyapa->status[REG_OP_STATUS] = status[REG_OP_STATUS];
+		cyapa->status[REG_BL_STATUS] = status[REG_BL_STATUS];
+		cyapa->status[REG_BL_ERROR] = status[REG_BL_ERROR];
+
+		if (cyapa->gen == CYAPA_GEN_UNKNOWN ||
+				cyapa->gen == CYAPA_GEN3) {
+			error = cyapa_gen3_ops.state_parse(cyapa,
+					status, BL_STATUS_SIZE);
+			if (!error)
+				goto out_detected;
 		}
-	} else {
-		if (status[REG_BL_STATUS] & BL_STATUS_BUSY)
-			cyapa->state = CYAPA_STATE_BL_BUSY;
-		else if (status[REG_BL_ERROR] & BL_ERROR_BOOTLOADING)
-			cyapa->state = CYAPA_STATE_BL_ACTIVE;
-		else
-			cyapa->state = CYAPA_STATE_BL_IDLE;
-	}
 
+		/*
+		 * Write 0x00 0x00 to trackpad device to force update its
+		 * status, then redo the detection again.
+		 */
+		if (!smbus) {
+			cmd[0] = 0x00;
+			cmd[1] = 0x00;
+			error = cyapa_i2c_write(cyapa, 0, 2, cmd);
+			if (error)
+				goto error;
+
+			msleep(50);
+
+			error = cyapa_i2c_read(cyapa, BL_HEAD_OFFSET,
+					BL_STATUS_SIZE, status);
+			if (error)
+				goto error;
+		}
+	} while (--retries > 0 && !smbus);
+
+	goto error;
+
+out_detected:
 	return 0;
+
 error:
 	return (error < 0) ? error : -EAGAIN;
 }
@@ -484,141 +208,18 @@ error:
  *   -ETIMEDOUT if device never responds (too many -EAGAIN)
  *   < 0    other errors
  */
-static int cyapa_poll_state(struct cyapa *cyapa, unsigned int timeout)
+int cyapa_poll_state(struct cyapa *cyapa, unsigned int timeout)
 {
 	int error;
 	int tries = timeout / 100;
 
 	error = cyapa_get_state(cyapa);
-	while ((error || cyapa->state >= CYAPA_STATE_BL_BUSY) && tries--) {
+	while ((error || cyapa->state <= CYAPA_STATE_BL_BUSY) && tries--) {
 		msleep(100);
 		error = cyapa_get_state(cyapa);
 	}
-	return (error == -EAGAIN || error == -ETIMEDOUT) ? -ETIMEDOUT : error;
-}
-
-static int cyapa_bl_deactivate(struct cyapa *cyapa)
-{
-	int error;
-
-	error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_deactivate),
-					  bl_deactivate);
-	if (error)
-		return error;
-
-	/* wait for bootloader to switch to idle state; should take < 100ms */
-	msleep(100);
-	error = cyapa_poll_state(cyapa, 500);
-	if (error)
-		return error;
-	if (cyapa->state != CYAPA_STATE_BL_IDLE)
-		return -EAGAIN;
-	return 0;
-}
-
-/*
- * Exit bootloader
- *
- * Send bl_exit command, then wait 50 - 100 ms to let device transition to
- * operational mode.  If this is the first time the device's firmware is
- * running, it can take up to 2 seconds to calibrate its sensors.  So, poll
- * the device's new state for up to 2 seconds.
- *
- * Returns:
- *   -EIO    failure while reading from device
- *   -EAGAIN device is stuck in bootloader, b/c it has invalid firmware
- *   0       device is supported and in operational mode
- */
-static int cyapa_bl_exit(struct cyapa *cyapa)
-{
-	int error;
-
-	error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_exit), bl_exit);
-	if (error)
-		return error;
-
-	/*
-	 * Wait for bootloader to exit, and operation mode to start.
-	 * Normally, this takes at least 50 ms.
-	 */
-	usleep_range(50000, 100000);
-	/*
-	 * In addition, when a device boots for the first time after being
-	 * updated to new firmware, it must first calibrate its sensors, which
-	 * can take up to an additional 2 seconds.
-	 */
-	error = cyapa_poll_state(cyapa, 2000);
-	if (error < 0)
-		return error;
-	if (cyapa->state != CYAPA_STATE_OP)
-		return -EAGAIN;
-
-	return 0;
-}
-
-/*
- * Set device power mode
- *
- */
-static int cyapa_set_power_mode(struct cyapa *cyapa, u8 power_mode)
-{
-	struct device *dev = &cyapa->client->dev;
-	int ret;
-	u8 power;
-
-	if (cyapa->state != CYAPA_STATE_OP)
-		return 0;
-
-	ret = cyapa_read_byte(cyapa, CYAPA_CMD_POWER_MODE);
-	if (ret < 0)
-		return ret;
-
-	power = ret & ~PWR_MODE_MASK;
-	power |= power_mode & PWR_MODE_MASK;
-	ret = cyapa_write_byte(cyapa, CYAPA_CMD_POWER_MODE, power);
-	if (ret < 0) {
-		dev_err(dev, "failed to set power_mode 0x%02x err = %d\n",
-			power_mode, ret);
-		return ret;
-	}
-
-	return 0;
-}
-
-static int cyapa_get_query_data(struct cyapa *cyapa)
-{
-	u8 query_data[QUERY_DATA_SIZE];
-	int ret;
-
-	if (cyapa->state != CYAPA_STATE_OP)
-		return -EBUSY;
-
-	ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_QUERY, query_data);
-	if (ret < 0)
-		return ret;
-	if (ret != QUERY_DATA_SIZE)
-		return -EIO;
-
-	memcpy(&cyapa->product_id[0], &query_data[0], 5);
-	cyapa->product_id[5] = '-';
-	memcpy(&cyapa->product_id[6], &query_data[5], 6);
-	cyapa->product_id[12] = '-';
-	memcpy(&cyapa->product_id[13], &query_data[11], 2);
-	cyapa->product_id[15] = '\0';
-
-	cyapa->btn_capability = query_data[19] & CAPABILITY_BTN_MASK;
-
-	cyapa->gen = query_data[20] & 0x0f;
-
-	cyapa->max_abs_x = ((query_data[21] & 0xf0) << 4) | query_data[22];
-	cyapa->max_abs_y = ((query_data[21] & 0x0f) << 8) | query_data[23];
-
-	cyapa->physical_size_x =
-		((query_data[24] & 0xf0) << 4) | query_data[25];
-	cyapa->physical_size_y =
-		((query_data[24] & 0x0f) << 8) | query_data[26];
 
-	return 0;
+	return (error == -EAGAIN || error == -ETIMEDOUT) ? -ETIMEDOUT : error;
 }
 
 /*
@@ -628,8 +229,10 @@ static int cyapa_get_query_data(struct cyapa *cyapa)
  * firmware supported by this driver.
  *
  * Returns:
+ *   -ENODEV no device
  *   -EBUSY  no device or in bootloader
  *   -EIO    failure while reading from device
+ *   -ETIMEDOUT timeout failure for bus idle or bus no response
  *   -EAGAIN device is still in bootloader
  *           if ->state = CYAPA_STATE_BL_IDLE, device has invalid firmware
  *   -EINVAL device is in operational mode, but not supported by this driver
@@ -637,122 +240,55 @@ static int cyapa_get_query_data(struct cyapa *cyapa)
  */
 static int cyapa_check_is_operational(struct cyapa *cyapa)
 {
-	struct device *dev = &cyapa->client->dev;
-	static const char unique_str[] = "CYTRA";
 	int error;
 
-	error = cyapa_poll_state(cyapa, 2000);
+	error = cyapa_poll_state(cyapa, 4000);
 	if (error)
 		return error;
-	switch (cyapa->state) {
-	case CYAPA_STATE_BL_ACTIVE:
-		error = cyapa_bl_deactivate(cyapa);
-		if (error)
-			return error;
 
-	/* Fallthrough state */
-	case CYAPA_STATE_BL_IDLE:
-		error = cyapa_bl_exit(cyapa);
-		if (error)
-			return error;
-
-	/* Fallthrough state */
-	case CYAPA_STATE_OP:
-		error = cyapa_get_query_data(cyapa);
-		if (error)
-			return error;
+	switch (cyapa->gen) {
+	case CYAPA_GEN3:
+		cyapa->ops = &cyapa_gen3_ops;
+		break;
+	default:
+		return -ENODEV;
+	}
 
-		/* only support firmware protocol gen3 */
-		if (cyapa->gen != CYAPA_GEN3) {
-			dev_err(dev, "unsupported protocol version (%d)",
-				cyapa->gen);
-			return -EINVAL;
-		}
+	if (cyapa->ops->operational_check)
+		error = cyapa->ops->operational_check(cyapa);
 
-		/* only support product ID starting with CYTRA */
-		if (memcmp(cyapa->product_id, unique_str,
-			   sizeof(unique_str) - 1) != 0) {
-			dev_err(dev, "unsupported product ID (%s)\n",
-				cyapa->product_id);
-			return -EINVAL;
-		}
-		return 0;
+	if (!error && CYAPA_OPERATIONAL(cyapa))
+		cyapa->operational = true;
+	else
+		cyapa->operational = false;
 
-	default:
-		return -EIO;
-	}
-	return 0;
+	return error;
 }
 
-static irqreturn_t cyapa_irq(int irq, void *dev_id)
+
+/*
+ * Returns 0 on device detected, negative errno on no device detected.
+ * And when the device is detected and opertaional, it will be reset to
+ * full power active mode automatically.
+ */
+int cyapa_detect(struct cyapa *cyapa)
 {
-	struct cyapa *cyapa = dev_id;
 	struct device *dev = &cyapa->client->dev;
-	struct input_dev *input = cyapa->input;
-	struct cyapa_reg_data data;
-	int i;
-	int ret;
-	int num_fingers;
-
-	if (device_may_wakeup(dev))
-		pm_wakeup_event(dev, 0);
-
-	ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_DATA, (u8 *)&data);
-	if (ret != sizeof(data))
-		goto out;
+	int error;
 
-	if ((data.device_status & OP_STATUS_SRC) != OP_STATUS_SRC ||
-	    (data.device_status & OP_STATUS_DEV) != CYAPA_DEV_NORMAL ||
-	    (data.finger_btn & OP_DATA_VALID) != OP_DATA_VALID) {
-		goto out;
-	}
+	error = cyapa_check_is_operational(cyapa);
+	if (error) {
+		if (error != -ETIMEDOUT && error != -ENODEV &&
+			CYAPA_BOOTLOADER(cyapa)) {
+			dev_warn(dev, "device detected but not operational\n");
+			return 0;
+		}
 
-	num_fingers = (data.finger_btn >> 4) & 0x0f;
-	for (i = 0; i < num_fingers; i++) {
-		const struct cyapa_touch *touch = &data.touches[i];
-		/* Note: touch->id range is 1 to 15; slots are 0 to 14. */
-		int slot = touch->id - 1;
-
-		input_mt_slot(input, slot);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
-		input_report_abs(input, ABS_MT_POSITION_X,
-				 ((touch->xy_hi & 0xf0) << 4) | touch->x_lo);
-		input_report_abs(input, ABS_MT_POSITION_Y,
-				 ((touch->xy_hi & 0x0f) << 8) | touch->y_lo);
-		input_report_abs(input, ABS_MT_PRESSURE, touch->pressure);
+		dev_err(dev, "no device detected, (%d)\n", error);
+		return error;
 	}
 
-	input_mt_sync_frame(input);
-
-	if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK)
-		input_report_key(input, BTN_LEFT,
-				 data.finger_btn & OP_DATA_LEFT_BTN);
-
-	if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK)
-		input_report_key(input, BTN_MIDDLE,
-				 data.finger_btn & OP_DATA_MIDDLE_BTN);
-
-	if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK)
-		input_report_key(input, BTN_RIGHT,
-				 data.finger_btn & OP_DATA_RIGHT_BTN);
-
-	input_sync(input);
-
-out:
-	return IRQ_HANDLED;
-}
-
-static u8 cyapa_check_adapter_functionality(struct i2c_client *client)
-{
-	u8 ret = CYAPA_ADAPTER_FUNC_NONE;
-
-	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
-		ret |= CYAPA_ADAPTER_FUNC_I2C;
-	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
-				     I2C_FUNC_SMBUS_BLOCK_DATA |
-				     I2C_FUNC_SMBUS_I2C_BLOCK))
-		ret |= CYAPA_ADAPTER_FUNC_SMBUS;
-	return ret;
+	return 0;
 }
 
 static int cyapa_open(struct input_dev *input)
@@ -761,22 +297,49 @@ static int cyapa_open(struct input_dev *input)
 	struct i2c_client *client = cyapa->client;
 	int error;
 
-	error = cyapa_set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE);
-	if (error) {
-		dev_err(&client->dev, "set active power failed: %d\n", error);
+	error = mutex_lock_interruptible(&cyapa->state_sync_lock);
+	if (error)
 		return error;
+
+	if (cyapa->operational && cyapa->ops->set_power_mode) {
+		/*
+		 * though failed to set active power mode,
+		 * but still may be able to work in lower scan rate
+		 * when in operational mode.
+		 */
+		error = cyapa->ops->set_power_mode(cyapa,
+				PWR_MODE_FULL_ACTIVE, 0);
+		if (error) {
+			dev_warn(&client->dev,
+				"set active power failed: %d\n", error);
+			goto out;
+		}
+	} else {
+		error = cyapa_reinitialize(cyapa);
+		if (error || !cyapa->operational) {
+			error = error ? error : -EAGAIN;
+			goto out;
+		}
 	}
 
 	enable_irq(client->irq);
-	return 0;
+out:
+	mutex_unlock(&cyapa->state_sync_lock);
+	return error;
 }
 
 static void cyapa_close(struct input_dev *input)
 {
 	struct cyapa *cyapa = input_get_drvdata(input);
+	struct i2c_client *client = cyapa->client;
 
-	disable_irq(cyapa->client->irq);
-	cyapa_set_power_mode(cyapa, PWR_MODE_OFF);
+	mutex_lock(&cyapa->state_sync_lock);
+
+	disable_irq(client->irq);
+	if (!CYAPA_BOOTLOADER(cyapa) && cyapa->ops->set_power_mode)
+		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+
+	mutex_unlock(&cyapa->state_sync_lock);
 }
 
 static int cyapa_create_input_dev(struct cyapa *cyapa)
@@ -813,7 +376,28 @@ static int cyapa_create_input_dev(struct cyapa *cyapa)
 			     0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, cyapa->max_abs_y, 0,
 			     0);
-	input_set_abs_params(input, ABS_MT_PRESSURE, 0, 255, 0, 0);
+	input_set_abs_params(input, ABS_MT_PRESSURE, 0, cyapa->max_z, 0, 0);
+	if (cyapa->gen > CYAPA_GEN3) {
+		input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
+		input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0);
+		/*
+		 * Orientation is the angle between the vertical axis and
+		 * the major axis of the contact ellipse.
+		 * The range is -127 to 127.
+		 * the positive direction is clockwise form the vertical axis.
+		 * If the ellipse of contact degenerates into a circle,
+		 * orientation is reported as 0.
+		 *
+		 * Also, for Gen5 trackpad the accurate of this orientation
+		 * value is value + (-30 ~ 30).
+		 */
+		input_set_abs_params(input, ABS_MT_ORIENTATION,
+				-127, 127, 0, 0);
+	}
+	if (cyapa->gen >= CYAPA_GEN5) {
+		input_set_abs_params(input, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
+		input_set_abs_params(input, ABS_MT_WIDTH_MINOR, 0, 255, 0, 0);
+	}
 
 	input_abs_set_res(input, ABS_MT_POSITION_X,
 			  cyapa->max_abs_x / cyapa->physical_size_x);
@@ -838,16 +422,160 @@ static int cyapa_create_input_dev(struct cyapa *cyapa)
 		return error;
 	}
 
+	/* Register the device in input subsystem */
+	error = input_register_device(input);
+	if (error) {
+		dev_err(dev, "failed to register input device: %d\n", error);
+		return error;
+	}
+
 	cyapa->input = input;
 	return 0;
 }
 
+/*
+ * cyapa_sleep_time_to_pwr_cmd and cyapa_pwr_cmd_to_sleep_time
+ *
+ * These are helper functions that convert to and from integer idle
+ * times and register settings to write to the PowerMode register.
+ * The trackpad supports between 20ms to 1000ms scan intervals.
+ * The time will be increased in increments of 10ms from 20ms to 100ms.
+ * From 100ms to 1000ms, time will be increased in increments of 20ms.
+ *
+ * When Idle_Time < 100, the format to convert Idle_Time to Idle_Command is:
+ *   Idle_Command = Idle Time / 10;
+ * When Idle_Time >= 100, the format to convert Idle_Time to Idle_Command is:
+ *   Idle_Command = Idle Time / 20 + 5;
+ */
+u8 cyapa_sleep_time_to_pwr_cmd(u16 sleep_time)
+{
+	u16 encoded_time;
+
+	sleep_time = clamp_val(sleep_time, 20, 1000);
+	encoded_time = sleep_time < 100 ? sleep_time / 10 : sleep_time / 20 + 5;
+	return (encoded_time << 2) & PWR_MODE_MASK;
+}
+
+u16 cyapa_pwr_cmd_to_sleep_time(u8 pwr_mode)
+{
+	u8 encoded_time = pwr_mode >> 2;
+
+	return (encoded_time < 10) ? encoded_time * 10
+				   : (encoded_time - 5) * 20;
+}
+
+/* 0 on driver initialize and detected successfully, negative on failure. */
+static int cyapa_initialize(struct cyapa *cyapa)
+{
+	int error = 0;
+
+	cyapa->state = CYAPA_STATE_NO_DEVICE;
+	cyapa->gen = CYAPA_GEN_UNKNOWN;
+	mutex_init(&cyapa->state_sync_lock);
+
+	/*
+	 * Set to hard code default, they will be updated with trackpad set
+	 * default values after probe and initialized.
+	 */
+	cyapa->suspend_power_mode = PWR_MODE_SLEEP;
+	cyapa->suspend_sleep_time =
+		cyapa_pwr_cmd_to_sleep_time(cyapa->suspend_power_mode);
+
+	if (cyapa_gen3_ops.initialize)
+		error = cyapa_gen3_ops.initialize(cyapa);
+	if (error)
+		return error;
+
+	error = cyapa_detect(cyapa);
+	if (error)
+		return error;
+
+	/* Power down the device until we need it. */
+	if (!CYAPA_BOOTLOADER(cyapa) && cyapa->ops->set_power_mode)
+		cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+
+	return 0;
+}
+
+static int cyapa_reinitialize(struct cyapa *cyapa)
+{
+	struct device *dev = &cyapa->client->dev;
+	struct input_dev *input = cyapa->input;
+	int error;
+
+	/* Avoid command failures when TP was in OFF state. */
+	if (!CYAPA_BOOTLOADER(cyapa) && cyapa->ops->set_power_mode)
+		cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0);
+
+	error = cyapa_detect(cyapa);
+	if (error)
+		goto out;
+
+	if (!input && cyapa->operational) {
+		error = cyapa_create_input_dev(cyapa);
+		if (error) {
+			dev_err(dev, "create input_dev instance failed: %d\n",
+					error);
+			goto out;
+		}
+	}
+
+out:
+	if (!input || !input->users) {
+		/* Reset to power OFF state to save power when no user open. */
+		if (!CYAPA_BOOTLOADER(cyapa) && cyapa->ops->set_power_mode)
+			cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0);
+	}
+
+	return error;
+}
+
+static irqreturn_t cyapa_irq(int irq, void *dev_id)
+{
+	struct cyapa *cyapa = dev_id;
+	struct device *dev = &cyapa->client->dev;
+	bool cont;
+
+	if (device_may_wakeup(dev))
+		pm_wakeup_event(dev, 0);
+
+	/* Interrupt event maybe cuased by host command to trackpad device. */
+	cont = true;
+	if (cyapa->ops->irq_cmd_handler)
+		cont = cyapa->ops->irq_cmd_handler(cyapa);
+
+	/* Interrupt event maybe from trackpad device input reporting. */
+	if (cont && cyapa->ops->irq_handler) {
+		/* Still in probling or in firware image udpating or reading. */
+		if (!cyapa->input && cyapa->ops->sort_empty_output_data) {
+			cyapa->ops->sort_empty_output_data(cyapa,
+				NULL, NULL, NULL);
+			goto out;
+		}
+
+		if (!cyapa->operational || cyapa->ops->irq_handler(cyapa)) {
+			if (!mutex_trylock(&cyapa->state_sync_lock) &&
+					cyapa->ops->sort_empty_output_data) {
+				cyapa->ops->sort_empty_output_data(cyapa,
+					NULL, NULL, NULL);
+				goto out;
+			}
+			cyapa_reinitialize(cyapa);
+			mutex_unlock(&cyapa->state_sync_lock);
+		}
+	}
+
+out:
+	return IRQ_HANDLED;
+}
+
 static int cyapa_probe(struct i2c_client *client,
 		       const struct i2c_device_id *dev_id)
 {
 	struct device *dev = &client->dev;
 	struct cyapa *cyapa;
 	u8 adapter_func;
+	union i2c_smbus_data dummy;
 	int error;
 
 	adapter_func = cyapa_check_adapter_functionality(client);
@@ -856,39 +584,30 @@ static int cyapa_probe(struct i2c_client *client,
 		return -EIO;
 	}
 
+	/* Make sure there is something at this address */
+	if (i2c_smbus_xfer(client->adapter, client->addr, 0,
+			I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &dummy) < 0)
+		return -ENODEV;
+
 	cyapa = devm_kzalloc(dev, sizeof(struct cyapa), GFP_KERNEL);
 	if (!cyapa)
 		return -ENOMEM;
 
-	cyapa->gen = CYAPA_GEN3;
-	cyapa->client = client;
-	i2c_set_clientdata(client, cyapa);
-	sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr,
-		client->addr);
-
 	/* i2c isn't supported, use smbus */
 	if (adapter_func == CYAPA_ADAPTER_FUNC_SMBUS)
 		cyapa->smbus = true;
 
-	cyapa->state = CYAPA_STATE_NO_DEVICE;
-
-	error = cyapa_check_is_operational(cyapa);
-	if (error) {
-		dev_err(dev, "device not operational, %d\n", error);
-		return error;
-	}
+	cyapa->client = client;
+	i2c_set_clientdata(client, cyapa);
+	sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr,
+		client->addr);
 
-	/* Power down the device until we need it */
-	error = cyapa_set_power_mode(cyapa, PWR_MODE_OFF);
+	error = cyapa_initialize(cyapa);
 	if (error) {
-		dev_err(dev, "failed to quiesce the device: %d\n", error);
+		dev_err(dev, "failed to detect and initialize tp device.\n");
 		return error;
 	}
 
-	error = cyapa_create_input_dev(cyapa);
-	if (error)
-		return error;
-
 	error = devm_request_threaded_irq(dev, client->irq,
 					  NULL, cyapa_irq,
 					  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
@@ -901,11 +620,18 @@ static int cyapa_probe(struct i2c_client *client,
 	/* Disable IRQ until the device is opened */
 	disable_irq(client->irq);
 
-	/* Register the device in input subsystem */
-	error = input_register_device(cyapa->input);
-	if (error) {
-		dev_err(dev, "failed to register input device: %d\n", error);
-		return error;
+	/*
+	 * Register the device in the input subsystem when it's operational.
+	 * Otherwise, keep in this driver, so it can be be recovered or updated
+	 * through the sysfs mode and update_fw interfaces by user or apps.
+	 */
+	if (cyapa->operational) {
+		error = cyapa_create_input_dev(cyapa);
+		if (error) {
+			dev_err(dev, "create input_dev instance failed: %d\n",
+					error);
+			return error;
+		}
 	}
 
 	return 0;
@@ -915,11 +641,10 @@ static int __maybe_unused cyapa_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct cyapa *cyapa = i2c_get_clientdata(client);
-	struct input_dev *input = cyapa->input;
 	u8 power_mode;
 	int error;
 
-	error = mutex_lock_interruptible(&input->mutex);
+	error = mutex_lock_interruptible(&cyapa->state_sync_lock);
 	if (error)
 		return error;
 
@@ -929,18 +654,20 @@ static int __maybe_unused cyapa_suspend(struct device *dev)
 	 * Set trackpad device to idle mode if wakeup is allowed,
 	 * otherwise turn off.
 	 */
-	power_mode = device_may_wakeup(dev) ? PWR_MODE_IDLE
+	power_mode = device_may_wakeup(dev) ? cyapa->suspend_power_mode
 					    : PWR_MODE_OFF;
-	error = cyapa_set_power_mode(cyapa, power_mode);
-	if (error)
-		dev_err(dev, "resume: set power mode to %d failed: %d\n",
-			 power_mode, error);
+	if (!CYAPA_BOOTLOADER(cyapa) && cyapa->ops->set_power_mode) {
+		error = cyapa->ops->set_power_mode(cyapa, power_mode,
+				cyapa->suspend_sleep_time);
+		if (error)
+			dev_err(dev, "suspend set power mode failed: %d\n",
+					error);
+	}
 
 	if (device_may_wakeup(dev))
 		cyapa->irq_wake = (enable_irq_wake(client->irq) == 0);
 
-	mutex_unlock(&input->mutex);
-
+	mutex_unlock(&cyapa->state_sync_lock);
 	return 0;
 }
 
@@ -948,25 +675,22 @@ static int __maybe_unused cyapa_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct cyapa *cyapa = i2c_get_clientdata(client);
-	struct input_dev *input = cyapa->input;
-	u8 power_mode;
 	int error;
 
-	mutex_lock(&input->mutex);
+	mutex_lock(&cyapa->state_sync_lock);
 
-	if (device_may_wakeup(dev) && cyapa->irq_wake)
+	if (device_may_wakeup(dev) && cyapa->irq_wake) {
 		disable_irq_wake(client->irq);
+		cyapa->irq_wake = false;
+	}
 
-	power_mode = input->users ? PWR_MODE_FULL_ACTIVE : PWR_MODE_OFF;
-	error = cyapa_set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE);
+	error = cyapa_reinitialize(cyapa);
 	if (error)
-		dev_warn(dev, "resume: set power mode to %d failed: %d\n",
-			 power_mode, error);
+		dev_warn(dev, "failed to reinitialize TP device: %d\n", error);
 
 	enable_irq(client->irq);
 
-	mutex_unlock(&input->mutex);
-
+	mutex_unlock(&cyapa->state_sync_lock);
 	return 0;
 }
 
diff --git a/drivers/input/mouse/cyapa.h b/drivers/input/mouse/cyapa.h
new file mode 100644
index 0000000..d79eeb1
--- /dev/null
+++ b/drivers/input/mouse/cyapa.h
@@ -0,0 +1,316 @@
+/*
+ * Cypress APA trackpad with I2C interface
+ *
+ * Author: Dudley Du <dudl@cypress.com>
+ *
+ * Copyright (C) 2014 Cypress Semiconductor, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef _CYAPA_H
+#define _CYAPA_H
+
+#include <linux/firmware.h>
+
+/* APA trackpad firmware generation number. */
+#define CYAPA_GEN_UNKNOWN   0x00   /* unknown protocol. */
+#define CYAPA_GEN3   0x03   /* support MT-protocol B with tracking ID. */
+#define CYAPA_GEN5   0x05   /* support TrueTouch GEN5 trackpad device. */
+
+#define CYAPA_NAME   "Cypress APA Trackpad (cyapa)"
+
+/*
+ * Macros for SMBus communication
+ */
+#define SMBUS_READ   0x01
+#define SMBUS_WRITE 0x00
+#define SMBUS_ENCODE_IDX(cmd, idx) ((cmd) | (((idx) & 0x03) << 1))
+#define SMBUS_ENCODE_RW(cmd, rw) ((cmd) | ((rw) & 0x01))
+#define SMBUS_BYTE_BLOCK_CMD_MASK 0x80
+#define SMBUS_GROUP_BLOCK_CMD_MASK 0x40
+
+/* Commands for read/write registers of Cypress trackpad */
+#define CYAPA_CMD_SOFT_RESET       0x00
+#define CYAPA_CMD_POWER_MODE       0x01
+#define CYAPA_CMD_DEV_STATUS       0x02
+#define CYAPA_CMD_GROUP_DATA       0x03
+#define CYAPA_CMD_GROUP_CMD        0x04
+#define CYAPA_CMD_GROUP_QUERY      0x05
+#define CYAPA_CMD_BL_STATUS        0x06
+#define CYAPA_CMD_BL_HEAD          0x07
+#define CYAPA_CMD_BL_CMD           0x08
+#define CYAPA_CMD_BL_DATA          0x09
+#define CYAPA_CMD_BL_ALL           0x0a
+#define CYAPA_CMD_BLK_PRODUCT_ID   0x0b
+#define CYAPA_CMD_BLK_HEAD         0x0c
+#define CYAPA_CMD_MAX_BASELINE     0x0d
+#define CYAPA_CMD_MIN_BASELINE     0x0e
+
+#define BL_HEAD_OFFSET 0x00
+#define BL_DATA_OFFSET 0x10
+
+#define BL_STATUS_SIZE  3  /* Length of gen3 bootloader status registers */
+#define CYAPA_REG_MAP_SIZE  256
+
+/*
+ * Gen3 Operational Device Status Register
+ *
+ * bit 7: Valid interrupt source
+ * bit 6 - 4: Reserved
+ * bit 3 - 2: Power status
+ * bit 1 - 0: Device status
+ */
+#define REG_OP_STATUS     0x00
+#define OP_STATUS_SRC     0x80
+#define OP_STATUS_POWER   0x0c
+#define OP_STATUS_DEV     0x03
+#define OP_STATUS_MASK (OP_STATUS_SRC | OP_STATUS_POWER | OP_STATUS_DEV)
+
+/*
+ * Operational Finger Count/Button Flags Register
+ *
+ * bit 7 - 4: Number of touched finger
+ * bit 3: Valid data
+ * bit 2: Middle Physical Button
+ * bit 1: Right Physical Button
+ * bit 0: Left physical Button
+ */
+#define REG_OP_DATA1       0x01
+#define OP_DATA_VALID      0x08
+#define OP_DATA_MIDDLE_BTN 0x04
+#define OP_DATA_RIGHT_BTN  0x02
+#define OP_DATA_LEFT_BTN   0x01
+#define OP_DATA_BTN_MASK (OP_DATA_MIDDLE_BTN | OP_DATA_RIGHT_BTN | \
+			  OP_DATA_LEFT_BTN)
+
+/*
+ * Write-only command file register used to issue commands and
+ * parameters to the bootloader.
+ * The default value read from it is always 0x00.
+ */
+#define REG_BL_FILE	0x00
+#define BL_FILE		0x00
+
+/*
+ * Bootloader Status Register
+ *
+ * bit 7: Busy
+ * bit 6 - 5: Reserved
+ * bit 4: Bootloader running
+ * bit 3 - 2: Reserved
+ * bit 1: Watchdog Reset
+ * bit 0: Checksum valid
+ */
+#define REG_BL_STATUS        0x01
+#define BL_STATUS_REV_6_5    0x60
+#define BL_STATUS_BUSY       0x80
+#define BL_STATUS_RUNNING    0x10
+#define BL_STATUS_REV_3_2    0x0c
+#define BL_STATUS_WATCHDOG   0x02
+#define BL_STATUS_CSUM_VALID 0x01
+#define BL_STATUS_REV_MASK (BL_STATUS_WATCHDOG | BL_STATUS_REV_3_2 | \
+			    BL_STATUS_REV_6_5)
+
+/*
+ * Bootloader Error Register
+ *
+ * bit 7: Invalid
+ * bit 6: Invalid security key
+ * bit 5: Bootloading
+ * bit 4: Command checksum
+ * bit 3: Flash protection error
+ * bit 2: Flash checksum error
+ * bit 1 - 0: Reserved
+ */
+#define REG_BL_ERROR         0x02
+#define BL_ERROR_INVALID     0x80
+#define BL_ERROR_INVALID_KEY 0x40
+#define BL_ERROR_BOOTLOADING 0x20
+#define BL_ERROR_CMD_CSUM    0x10
+#define BL_ERROR_FLASH_PROT  0x08
+#define BL_ERROR_FLASH_CSUM  0x04
+#define BL_ERROR_RESERVED    0x03
+#define BL_ERROR_NO_ERR_IDLE    0x00
+#define BL_ERROR_NO_ERR_ACTIVE  (BL_ERROR_BOOTLOADING)
+
+#define CAPABILITY_BTN_SHIFT            3
+#define CAPABILITY_LEFT_BTN_MASK	(0x01 << 3)
+#define CAPABILITY_RIGHT_BTN_MASK	(0x01 << 4)
+#define CAPABILITY_MIDDLE_BTN_MASK	(0x01 << 5)
+#define CAPABILITY_BTN_MASK  (CAPABILITY_LEFT_BTN_MASK | \
+			      CAPABILITY_RIGHT_BTN_MASK | \
+			      CAPABILITY_MIDDLE_BTN_MASK)
+
+#define PWR_MODE_MASK   0xfc
+#define PWR_MODE_FULL_ACTIVE (0x3f << 2)
+#define PWR_MODE_IDLE        (0x03 << 2) /* Default rt suspend scanrate: 30ms */
+#define PWR_MODE_SLEEP       (0x05 << 2) /* Default suspend scanrate: 50ms */
+#define PWR_MODE_BTN_ONLY    (0x01 << 2)
+#define PWR_MODE_OFF         (0x00 << 2)
+
+#define PWR_STATUS_MASK      0x0c
+#define PWR_STATUS_ACTIVE    (0x03 << 2)
+#define PWR_STATUS_IDLE      (0x02 << 2)
+#define PWR_STATUS_BTN_ONLY  (0x01 << 2)
+#define PWR_STATUS_OFF       (0x00 << 2)
+
+#define AUTOSUSPEND_DELAY   2000 /* unit : ms */
+
+#define UNINIT_SLEEP_TIME 0xFFFF
+#define UNINIT_PWR_MODE   0xFF
+
+#define BTN_ONLY_MODE_NAME   "buttononly"
+#define OFF_MODE_NAME        "off"
+
+/* The touch.id is used as the MT slot id, thus max MT slot is 15 */
+#define CYAPA_MAX_MT_SLOTS  15
+
+struct cyapa;
+
+typedef bool (*cb_sort)(struct cyapa *, u8 *, int);
+
+struct cyapa_dev_ops {
+	int (*check_fw)(struct cyapa *, const struct firmware *);
+	int (*bl_enter)(struct cyapa *);
+	int (*bl_activate)(struct cyapa *);
+	int (*bl_initiate)(struct cyapa *, const struct firmware *);
+	int (*update_fw)(struct cyapa *, const struct firmware *);
+	int (*bl_verify_app_integrity)(struct cyapa *);
+	int (*bl_deactivate)(struct cyapa *);
+
+	ssize_t (*show_baseline)(struct device *,
+			struct device_attribute *, char *);
+	ssize_t (*calibrate_store)(struct device *,
+			struct device_attribute *, const char *, size_t);
+
+	int (*initialize)(struct cyapa *cyapa);
+
+	int (*state_parse)(struct cyapa *cyapa, u8 *reg_status, int len);
+	int (*operational_check)(struct cyapa *cyapa);
+
+	int (*irq_handler)(struct cyapa *);
+	bool (*irq_cmd_handler)(struct cyapa *);
+	int (*sort_empty_output_data)(struct cyapa *,
+			u8 *, int *, cb_sort);
+
+	int (*set_power_mode)(struct cyapa *, u8, u16);
+};
+
+struct cyapa_gen5_cmd_states {
+	struct mutex cmd_lock;
+	struct completion cmd_ready;
+	atomic_t cmd_issued;
+	u8 in_progress_cmd;
+	bool is_irq_mode;
+
+	cb_sort resp_sort_func;
+	u8 *resp_data;
+	int *resp_len;
+
+	u8 irq_cmd_buf[CYAPA_REG_MAP_SIZE];
+	u8 empty_buf[CYAPA_REG_MAP_SIZE];
+};
+
+union cyapa_cmd_states {
+	struct cyapa_gen5_cmd_states gen5;
+};
+
+enum cyapa_state {
+	CYAPA_STATE_NO_DEVICE,
+	CYAPA_STATE_BL_BUSY,
+	CYAPA_STATE_BL_IDLE,
+	CYAPA_STATE_BL_ACTIVE,
+	CYAPA_STATE_OP,
+	CYAPA_STATE_GEN5_BL,
+	CYAPA_STATE_GEN5_APP,
+};
+#define CYAPA_OPERATIONAL(cyapa)					\
+	(((cyapa)->gen == CYAPA_GEN5 &&					\
+		(cyapa)->state == CYAPA_STATE_GEN5_APP) ||		\
+	((cyapa->gen) == CYAPA_GEN3 && (cyapa)->state == CYAPA_STATE_OP))
+#define CYAPA_BOOTLOADER(cyapa)						\
+	((((cyapa)->gen == CYAPA_GEN5 &&				\
+		(cyapa)->state == CYAPA_STATE_GEN5_BL)) ||		\
+	(((cyapa)->gen == CYAPA_GEN3 &&					\
+		(cyapa)->state >= CYAPA_STATE_BL_BUSY &&		\
+		(cyapa)->state <= CYAPA_STATE_BL_ACTIVE)))
+
+struct cyapa_tsg_bin_image_head {
+	u8 head_size;  /* Unit: bytes, including itself. */
+	u8 ttda_driver_major_version;  /* Reserved as 0. */
+	u8 ttda_driver_minor_version;  /* Reserved as 0. */
+	u8 fw_major_version;
+	u8 fw_minor_version;
+	u8 fw_revision_control_number[8];
+} __packed;
+
+/* The main device structure */
+struct cyapa {
+	enum cyapa_state state;
+	u8 status[BL_STATUS_SIZE];
+	bool operational; /* true: ready for data reporting; false: not. */
+
+	struct i2c_client *client;
+	struct input_dev *input;
+	char phys[32];	/* Device physical location */
+	bool irq_wake;  /* Irq wake is enabled */
+	bool smbus;
+
+	/* power mode settings */
+	u8 suspend_power_mode;
+	u16 suspend_sleep_time;
+	u8 dev_pwr_mode;
+	u16 dev_sleep_time;
+
+	/* Read from query data region. */
+	char product_id[16];
+	u8 fw_maj_ver;  /* Firmware major version. */
+	u8 fw_min_ver;  /* Firmware minor version. */
+	u8 btn_capability;
+	u8 gen;
+	int max_abs_x;
+	int max_abs_y;
+	int physical_size_x;
+	int physical_size_y;
+
+	/* Used in ttsp and truetouch based trackpad devices. */
+	u8 x_origin;  /* X Axis Origin: 0 = left side; 1 = rigth side. */
+	u8 y_origin;  /* Y Axis Origin: 0 = top; 1 = bottom. */
+	int electrodes_x;  /* Number of electrodes on the X Axis*/
+	int electrodes_y;  /* Number of electrodes on the Y Axis*/
+	int max_z;
+
+	/*
+	 * Used to synchronize the access or update the device state.
+	 * And since update firmware and read firmware image process will take
+	 * quite long time, maybe more than 10 seconds, so use mutex_lock
+	 * to sync and wait other interface and detecting are done or ready.
+	 */
+	struct mutex state_sync_lock;
+
+	const struct cyapa_dev_ops *ops;
+
+	union cyapa_cmd_states cmd_states;
+};
+
+
+ssize_t cyapa_i2c_reg_read_block(struct cyapa *cyapa, u8 reg, size_t len,
+				u8 *values);
+ssize_t cyapa_smbus_read_block(struct cyapa *cyapa, u8 cmd, size_t len,
+				u8 *values);
+
+ssize_t cyapa_read_block(struct cyapa *cyapa, u8 cmd_idx, u8 *values);
+
+int cyapa_poll_state(struct cyapa *cyapa, unsigned int timeout);
+
+u8 cyapa_sleep_time_to_pwr_cmd(u16 sleep_time);
+u16 cyapa_pwr_cmd_to_sleep_time(u8 pwr_mode);
+
+
+extern const char unique_str[];
+extern const struct cyapa_dev_ops cyapa_gen3_ops;
+
+#endif
diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
new file mode 100644
index 0000000..a50986c
--- /dev/null
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -0,0 +1,793 @@
+/*
+ * Cypress APA trackpad with I2C interface
+ *
+ * Author: Dudley Du <dudl@cypress.com>
+ * Further cleanup and restructuring by:
+ *   Daniel Kurtz <djkurtz@chromium.org>
+ *   Benson Leung <bleung@chromium.org>
+ *
+ * Copyright (C) 2011-2014 Cypress Semiconductor, Inc.
+ * Copyright (C) 2011-2012 Google, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include "cyapa.h"
+
+
+#define GEN3_MAX_FINGERS 5
+#define GEN3_FINGER_NUM(x) (((x) >> 4) & 0x07)
+
+#define BLK_HEAD_BYTES 32
+
+/* Macro for register map group offset. */
+#define PRODUCT_ID_SIZE  16
+#define QUERY_DATA_SIZE  27
+#define REG_PROTOCOL_GEN_QUERY_OFFSET  20
+
+#define REG_OFFSET_DATA_BASE     0x0000
+#define REG_OFFSET_COMMAND_BASE  0x0028
+#define REG_OFFSET_QUERY_BASE    0x002a
+
+#define CYAPA_OFFSET_SOFT_RESET  REG_OFFSET_COMMAND_BASE
+#define OP_RECALIBRATION_MASK    0x80
+#define OP_REPORT_BASELINE_MASK  0x40
+#define REG_OFFSET_MAX_BASELINE  0x0026
+#define REG_OFFSET_MIN_BASELINE  0x0027
+
+#define REG_OFFSET_POWER_MODE (REG_OFFSET_COMMAND_BASE + 1)
+#define SET_POWER_MODE_DELAY   10000  /* Unit: us */
+#define SET_POWER_MODE_TRIES   5
+
+/*
+ * CYAPA trackpad device states.
+ * Used in register 0x00, bit1-0, DeviceStatus field.
+ * Other values indicate device is in an abnormal state and must be reset.
+ */
+#define CYAPA_DEV_NORMAL  0x03
+#define CYAPA_DEV_BUSY    0x01
+
+#define CYAPA_FW_BLOCK_SIZE	64
+#define CYAPA_FW_READ_SIZE	16
+#define CYAPA_FW_HDR_START	0x0780
+#define CYAPA_FW_HDR_BLOCK_COUNT  2
+#define CYAPA_FW_HDR_BLOCK_START  (CYAPA_FW_HDR_START / CYAPA_FW_BLOCK_SIZE)
+#define CYAPA_FW_HDR_SIZE	  (CYAPA_FW_HDR_BLOCK_COUNT * \
+					CYAPA_FW_BLOCK_SIZE)
+#define CYAPA_FW_DATA_START	0x0800
+#define CYAPA_FW_DATA_BLOCK_COUNT  480
+#define CYAPA_FW_DATA_BLOCK_START  (CYAPA_FW_DATA_START / CYAPA_FW_BLOCK_SIZE)
+#define CYAPA_FW_DATA_SIZE	(CYAPA_FW_DATA_BLOCK_COUNT * \
+				 CYAPA_FW_BLOCK_SIZE)
+#define CYAPA_FW_SIZE		(CYAPA_FW_HDR_SIZE + CYAPA_FW_DATA_SIZE)
+#define CYAPA_CMD_LEN		16
+
+#define GEN3_BL_IDLE_FW_MAJ_VER_OFFSET 0x0b
+#define GEN3_BL_IDLE_FW_MIN_VER_OFFSET (GEN3_BL_IDLE_FW_MAJ_VER_OFFSET + 1)
+
+
+struct cyapa_touch {
+	/*
+	 * high bits or x/y position value
+	 * bit 7 - 4: high 4 bits of x position value
+	 * bit 3 - 0: high 4 bits of y position value
+	 */
+	u8 xy_hi;
+	u8 x_lo;  /* low 8 bits of x position value. */
+	u8 y_lo;  /* low 8 bits of y position value. */
+	u8 pressure;
+	/* id range is 1 - 15.  It is incremented with every new touch. */
+	u8 id;
+} __packed;
+
+struct cyapa_reg_data {
+	/*
+	 * bit 0 - 1: device status
+	 * bit 3 - 2: power mode
+	 * bit 6 - 4: reserved
+	 * bit 7: interrupt valid bit
+	 */
+	u8 device_status;
+	/*
+	 * bit 7 - 4: number of fingers currently touching pad
+	 * bit 3: valid data check bit
+	 * bit 2: middle mechanism button state if exists
+	 * bit 1: right mechanism button state if exists
+	 * bit 0: left mechanism button state if exists
+	 */
+	u8 finger_btn;
+	/* CYAPA reports up to 5 touches per packet. */
+	struct cyapa_touch touches[5];
+} __packed;
+
+static const u8 bl_activate[] = { 0x00, 0xff, 0x38, 0x00, 0x01, 0x02, 0x03,
+		0x04, 0x05, 0x06, 0x07 };
+static const u8 bl_deactivate[] = { 0x00, 0xff, 0x3b, 0x00, 0x01, 0x02, 0x03,
+		0x04, 0x05, 0x06, 0x07 };
+static const u8 bl_exit[] = { 0x00, 0xff, 0xa5, 0x00, 0x01, 0x02, 0x03, 0x04,
+		0x05, 0x06, 0x07 };
+
+
+ /* for byte read/write command */
+#define CMD_RESET      0
+#define CMD_POWER_MODE 1
+#define CMD_DEV_STATUS 2
+#define CMD_REPORT_MAX_BASELINE 3
+#define CMD_REPORT_MIN_BASELINE 4
+#define SMBUS_BYTE_CMD(cmd) (((cmd) & 0x3f) << 1)
+#define CYAPA_SMBUS_RESET         SMBUS_BYTE_CMD(CMD_RESET)
+#define CYAPA_SMBUS_POWER_MODE    SMBUS_BYTE_CMD(CMD_POWER_MODE)
+#define CYAPA_SMBUS_DEV_STATUS    SMBUS_BYTE_CMD(CMD_DEV_STATUS)
+#define CYAPA_SMBUS_MAX_BASELINE  SMBUS_BYTE_CMD(CMD_REPORT_MAX_BASELINE)
+#define CYAPA_SMBUS_MIN_BASELINE  SMBUS_BYTE_CMD(CMD_REPORT_MIN_BASELINE)
+
+ /* for group registers read/write command */
+#define REG_GROUP_DATA 0
+#define REG_GROUP_CMD 2
+#define REG_GROUP_QUERY 3
+#define SMBUS_GROUP_CMD(grp) (0x80 | (((grp) & 0x07) << 3))
+#define CYAPA_SMBUS_GROUP_DATA	 SMBUS_GROUP_CMD(REG_GROUP_DATA)
+#define CYAPA_SMBUS_GROUP_CMD	 SMBUS_GROUP_CMD(REG_GROUP_CMD)
+#define CYAPA_SMBUS_GROUP_QUERY	 SMBUS_GROUP_CMD(REG_GROUP_QUERY)
+
+ /* for register block read/write command */
+#define CMD_BL_STATUS 0
+#define CMD_BL_HEAD 1
+#define CMD_BL_CMD 2
+#define CMD_BL_DATA 3
+#define CMD_BL_ALL 4
+#define CMD_BLK_PRODUCT_ID 5
+#define CMD_BLK_HEAD 6
+#define SMBUS_BLOCK_CMD(cmd) (0xc0 | (((cmd) & 0x1f) << 1))
+
+/* register block read/write command in bootloader mode */
+#define CYAPA_SMBUS_BL_STATUS  SMBUS_BLOCK_CMD(CMD_BL_STATUS)
+#define CYAPA_SMBUS_BL_HEAD    SMBUS_BLOCK_CMD(CMD_BL_HEAD)
+#define CYAPA_SMBUS_BL_CMD     SMBUS_BLOCK_CMD(CMD_BL_CMD)
+#define CYAPA_SMBUS_BL_DATA    SMBUS_BLOCK_CMD(CMD_BL_DATA)
+#define CYAPA_SMBUS_BL_ALL     SMBUS_BLOCK_CMD(CMD_BL_ALL)
+
+/* register block read/write command in operational mode */
+#define CYAPA_SMBUS_BLK_PRODUCT_ID SMBUS_BLOCK_CMD(CMD_BLK_PRODUCT_ID)
+#define CYAPA_SMBUS_BLK_HEAD SMBUS_BLOCK_CMD(CMD_BLK_HEAD)
+
+ /* for byte read/write command */
+#define CMD_RESET 0
+#define CMD_POWER_MODE 1
+#define CMD_DEV_STATUS 2
+#define CMD_REPORT_MAX_BASELINE 3
+#define CMD_REPORT_MIN_BASELINE 4
+#define SMBUS_BYTE_CMD(cmd) (((cmd) & 0x3f) << 1)
+#define CYAPA_SMBUS_RESET         SMBUS_BYTE_CMD(CMD_RESET)
+#define CYAPA_SMBUS_POWER_MODE    SMBUS_BYTE_CMD(CMD_POWER_MODE)
+#define CYAPA_SMBUS_DEV_STATUS    SMBUS_BYTE_CMD(CMD_DEV_STATUS)
+#define CYAPA_SMBUS_MAX_BASELINE  SMBUS_BYTE_CMD(CMD_REPORT_MAX_BASELINE)
+#define CYAPA_SMBUS_MIN_BASELINE  SMBUS_BYTE_CMD(CMD_REPORT_MIN_BASELINE)
+
+ /* for group registers read/write command */
+#define REG_GROUP_DATA  0
+#define REG_GROUP_CMD   2
+#define REG_GROUP_QUERY 3
+#define SMBUS_GROUP_CMD(grp) (0x80 | (((grp) & 0x07) << 3))
+#define CYAPA_SMBUS_GROUP_DATA  SMBUS_GROUP_CMD(REG_GROUP_DATA)
+#define CYAPA_SMBUS_GROUP_CMD   SMBUS_GROUP_CMD(REG_GROUP_CMD)
+#define CYAPA_SMBUS_GROUP_QUERY SMBUS_GROUP_CMD(REG_GROUP_QUERY)
+
+ /* for register block read/write command */
+#define CMD_BL_STATUS		0
+#define CMD_BL_HEAD		1
+#define CMD_BL_CMD		2
+#define CMD_BL_DATA		3
+#define CMD_BL_ALL		4
+#define CMD_BLK_PRODUCT_ID	5
+#define CMD_BLK_HEAD		6
+#define SMBUS_BLOCK_CMD(cmd) (0xc0 | (((cmd) & 0x1f) << 1))
+
+/* register block read/write command in bootloader mode */
+#define CYAPA_SMBUS_BL_STATUS SMBUS_BLOCK_CMD(CMD_BL_STATUS)
+#define CYAPA_SMBUS_BL_HEAD   SMBUS_BLOCK_CMD(CMD_BL_HEAD)
+#define CYAPA_SMBUS_BL_CMD    SMBUS_BLOCK_CMD(CMD_BL_CMD)
+#define CYAPA_SMBUS_BL_DATA   SMBUS_BLOCK_CMD(CMD_BL_DATA)
+#define CYAPA_SMBUS_BL_ALL    SMBUS_BLOCK_CMD(CMD_BL_ALL)
+
+/* register block read/write command in operational mode */
+#define CYAPA_SMBUS_BLK_PRODUCT_ID SMBUS_BLOCK_CMD(CMD_BLK_PRODUCT_ID)
+#define CYAPA_SMBUS_BLK_HEAD       SMBUS_BLOCK_CMD(CMD_BLK_HEAD)
+
+struct cyapa_cmd_len {
+	u8 cmd;
+	u8 len;
+};
+
+/* maps generic CYAPA_CMD_* code to the I2C equivalent */
+static const struct cyapa_cmd_len cyapa_i2c_cmds[] = {
+	{ CYAPA_OFFSET_SOFT_RESET, 1 },		/* CYAPA_CMD_SOFT_RESET */
+	{ REG_OFFSET_COMMAND_BASE + 1, 1 },	/* CYAPA_CMD_POWER_MODE */
+	{ REG_OFFSET_DATA_BASE, 1 },		/* CYAPA_CMD_DEV_STATUS */
+	{ REG_OFFSET_DATA_BASE, sizeof(struct cyapa_reg_data) },
+						/* CYAPA_CMD_GROUP_DATA */
+	{ REG_OFFSET_COMMAND_BASE, 0 },		/* CYAPA_CMD_GROUP_CMD */
+	{ REG_OFFSET_QUERY_BASE, QUERY_DATA_SIZE }, /* CYAPA_CMD_GROUP_QUERY */
+	{ BL_HEAD_OFFSET, 3 },			/* CYAPA_CMD_BL_STATUS */
+	{ BL_HEAD_OFFSET, 16 },			/* CYAPA_CMD_BL_HEAD */
+	{ BL_HEAD_OFFSET, 16 },			/* CYAPA_CMD_BL_CMD */
+	{ BL_DATA_OFFSET, 16 },			/* CYAPA_CMD_BL_DATA */
+	{ BL_HEAD_OFFSET, 32 },			/* CYAPA_CMD_BL_ALL */
+	{ REG_OFFSET_QUERY_BASE, PRODUCT_ID_SIZE },
+						/* CYAPA_CMD_BLK_PRODUCT_ID */
+	{ REG_OFFSET_DATA_BASE, 32 },		/* CYAPA_CMD_BLK_HEAD */
+	{ REG_OFFSET_MAX_BASELINE, 1 },		/* CYAPA_CMD_MAX_BASELINE */
+	{ REG_OFFSET_MIN_BASELINE, 1 },		/* CYAPA_CMD_MIN_BASELINE */
+};
+
+static const struct cyapa_cmd_len cyapa_smbus_cmds[] = {
+	{ CYAPA_SMBUS_RESET, 1 },		/* CYAPA_CMD_SOFT_RESET */
+	{ CYAPA_SMBUS_POWER_MODE, 1 },		/* CYAPA_CMD_POWER_MODE */
+	{ CYAPA_SMBUS_DEV_STATUS, 1 },		/* CYAPA_CMD_DEV_STATUS */
+	{ CYAPA_SMBUS_GROUP_DATA, sizeof(struct cyapa_reg_data) },
+						/* CYAPA_CMD_GROUP_DATA */
+	{ CYAPA_SMBUS_GROUP_CMD, 2 },		/* CYAPA_CMD_GROUP_CMD */
+	{ CYAPA_SMBUS_GROUP_QUERY, QUERY_DATA_SIZE },
+						/* CYAPA_CMD_GROUP_QUERY */
+	{ CYAPA_SMBUS_BL_STATUS, 3 },		/* CYAPA_CMD_BL_STATUS */
+	{ CYAPA_SMBUS_BL_HEAD, 16 },		/* CYAPA_CMD_BL_HEAD */
+	{ CYAPA_SMBUS_BL_CMD, 16 },		/* CYAPA_CMD_BL_CMD */
+	{ CYAPA_SMBUS_BL_DATA, 16 },		/* CYAPA_CMD_BL_DATA */
+	{ CYAPA_SMBUS_BL_ALL, 32 },		/* CYAPA_CMD_BL_ALL */
+	{ CYAPA_SMBUS_BLK_PRODUCT_ID, PRODUCT_ID_SIZE },
+						/* CYAPA_CMD_BLK_PRODUCT_ID */
+	{ CYAPA_SMBUS_BLK_HEAD, 16 },		/* CYAPA_CMD_BLK_HEAD */
+	{ CYAPA_SMBUS_MAX_BASELINE, 1 },	/* CYAPA_CMD_MAX_BASELINE */
+	{ CYAPA_SMBUS_MIN_BASELINE, 1 },	/* CYAPA_CMD_MIN_BASELINE */
+};
+
+
+/*
+ * cyapa_smbus_read_block - perform smbus block read command
+ * @cyapa  - private data structure of the driver
+ * @cmd    - the properly encoded smbus command
+ * @len    - expected length of smbus command result
+ * @values - buffer to store smbus command result
+ *
+ * Returns negative errno, else the number of bytes written.
+ *
+ * Note:
+ * In trackpad device, the memory block allocated for I2C register map
+ * is 256 bytes, so the max read block for I2C bus is 256 bytes.
+ */
+ssize_t cyapa_smbus_read_block(struct cyapa *cyapa, u8 cmd, size_t len,
+				      u8 *values)
+{
+	ssize_t ret;
+	u8 index;
+	u8 smbus_cmd;
+	u8 *buf;
+	struct i2c_client *client = cyapa->client;
+
+	if (!(SMBUS_BYTE_BLOCK_CMD_MASK & cmd))
+		return -EINVAL;
+
+	if (SMBUS_GROUP_BLOCK_CMD_MASK & cmd) {
+		/* read specific block registers command. */
+		smbus_cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
+		ret = i2c_smbus_read_block_data(client, smbus_cmd, values);
+		goto out;
+	}
+
+	ret = 0;
+	for (index = 0; index * I2C_SMBUS_BLOCK_MAX < len; index++) {
+		smbus_cmd = SMBUS_ENCODE_IDX(cmd, index);
+		smbus_cmd = SMBUS_ENCODE_RW(smbus_cmd, SMBUS_READ);
+		buf = values + I2C_SMBUS_BLOCK_MAX * index;
+		ret = i2c_smbus_read_block_data(client, smbus_cmd, buf);
+		if (ret < 0)
+			goto out;
+	}
+
+out:
+	return ret > 0 ? len : ret;
+}
+
+s32 cyapa_read_byte(struct cyapa *cyapa, u8 cmd_idx)
+{
+	u8 cmd;
+
+	if (cyapa->smbus) {
+		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
+		cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
+	} else {
+		cmd = cyapa_i2c_cmds[cmd_idx].cmd;
+	}
+	return i2c_smbus_read_byte_data(cyapa->client, cmd);
+}
+
+s32 cyapa_write_byte(struct cyapa *cyapa, u8 cmd_idx, u8 value)
+{
+	u8 cmd;
+
+	if (cyapa->smbus) {
+		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
+		cmd = SMBUS_ENCODE_RW(cmd, SMBUS_WRITE);
+	} else {
+		cmd = cyapa_i2c_cmds[cmd_idx].cmd;
+	}
+	return i2c_smbus_write_byte_data(cyapa->client, cmd, value);
+}
+
+ssize_t cyapa_i2c_reg_read_block(struct cyapa *cyapa, u8 reg, size_t len,
+					u8 *values)
+{
+	return i2c_smbus_read_i2c_block_data(cyapa->client, reg, len, values);
+}
+
+ssize_t cyapa_i2c_reg_write_block(struct cyapa *cyapa, u8 reg,
+					 size_t len, const u8 *values)
+{
+	return i2c_smbus_write_i2c_block_data(cyapa->client, reg, len, values);
+}
+
+ssize_t cyapa_read_block(struct cyapa *cyapa, u8 cmd_idx, u8 *values)
+{
+	u8 cmd;
+	size_t len;
+
+	if (cyapa->smbus) {
+		cmd = cyapa_smbus_cmds[cmd_idx].cmd;
+		len = cyapa_smbus_cmds[cmd_idx].len;
+		return cyapa_smbus_read_block(cyapa, cmd, len, values);
+	}
+	cmd = cyapa_i2c_cmds[cmd_idx].cmd;
+	len = cyapa_i2c_cmds[cmd_idx].len;
+	return cyapa_i2c_reg_read_block(cyapa, cmd, len, values);
+}
+
+/*
+ * Determine the Gen3 trackpad device's current operating state.
+ *
+ */
+static int cyapa_gen3_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
+{
+	cyapa->state = CYAPA_STATE_NO_DEVICE;
+
+	/* Parse based on Gen3 characteristic registers and bits */
+	if (reg_data[REG_BL_FILE] == BL_FILE &&
+		reg_data[REG_BL_ERROR] == BL_ERROR_NO_ERR_IDLE &&
+		(reg_data[REG_BL_STATUS] ==
+			(BL_STATUS_RUNNING | BL_STATUS_CSUM_VALID) ||
+			reg_data[REG_BL_STATUS] == BL_STATUS_RUNNING)) {
+		/*
+		 * Normal state after power on or reset,
+		 * REG_BL_STATUS == 0x11, firmware image checksum is valid.
+		 * REG_BL_STATUS == 0x10, firmware image checksum is invalid.
+		 */
+		cyapa->gen = CYAPA_GEN3;
+		cyapa->state = CYAPA_STATE_BL_IDLE;
+	} else if (reg_data[REG_BL_FILE] == BL_FILE &&
+		(reg_data[REG_BL_STATUS] & BL_STATUS_RUNNING) ==
+			BL_STATUS_RUNNING) {
+		cyapa->gen = CYAPA_GEN3;
+		if (reg_data[REG_BL_STATUS] & BL_STATUS_BUSY) {
+			cyapa->state = CYAPA_STATE_BL_BUSY;
+		} else {
+			if ((reg_data[REG_BL_ERROR] & BL_ERROR_BOOTLOADING) ==
+					BL_ERROR_BOOTLOADING)
+				cyapa->state = CYAPA_STATE_BL_ACTIVE;
+			else
+				cyapa->state = CYAPA_STATE_BL_IDLE;
+		}
+	} else if ((reg_data[REG_OP_STATUS] & OP_STATUS_SRC) &&
+			(reg_data[REG_OP_DATA1] & OP_DATA_VALID)) {
+		/*
+		 * Normal state when running in operational mode,
+		 * may also not in full power state or
+		 * busying in command process.
+		 */
+		if (GEN3_FINGER_NUM(reg_data[REG_OP_DATA1]) <=
+				GEN3_MAX_FINGERS) {
+			/* Finger number data is valid. */
+			cyapa->gen = CYAPA_GEN3;
+			cyapa->state = CYAPA_STATE_OP;
+		}
+	} else if (reg_data[REG_OP_STATUS] == 0x0C &&
+			reg_data[REG_OP_DATA1] == 0x08) {
+		/* Op state when first two registers overwritten with 0x00 */
+		cyapa->gen = CYAPA_GEN3;
+		cyapa->state = CYAPA_STATE_OP;
+	} else if (reg_data[REG_BL_STATUS] &
+			(BL_STATUS_RUNNING | BL_STATUS_BUSY)) {
+		cyapa->gen = CYAPA_GEN3;
+		cyapa->state = CYAPA_STATE_BL_BUSY;
+	}
+
+	if (cyapa->gen == CYAPA_GEN3 && (cyapa->state == CYAPA_STATE_OP ||
+		cyapa->state == CYAPA_STATE_BL_IDLE ||
+		cyapa->state == CYAPA_STATE_BL_ACTIVE ||
+		cyapa->state == CYAPA_STATE_BL_BUSY))
+		return 0;
+
+	return -EAGAIN;
+}
+
+static int cyapa_gen3_bl_deactivate(struct cyapa *cyapa)
+{
+	int error;
+
+	error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_deactivate),
+					bl_deactivate);
+	if (error)
+		return error;
+
+	/* Wait for bootloader to switch to idle state; should take < 100ms */
+	msleep(100);
+	error = cyapa_poll_state(cyapa, 500);
+	if (error)
+		return error;
+	if (cyapa->state != CYAPA_STATE_BL_IDLE)
+		return -EAGAIN;
+	return 0;
+}
+
+/*
+ * Exit bootloader
+ *
+ * Send bl_exit command, then wait 50 - 100 ms to let device transition to
+ * operational mode.  If this is the first time the device's firmware is
+ * running, it can take up to 2 seconds to calibrate its sensors.  So, poll
+ * the device's new state for up to 2 seconds.
+ *
+ * Returns:
+ *   -EIO    failure while reading from device
+ *   -EAGAIN device is stuck in bootloader, b/c it has invalid firmware
+ *   0       device is supported and in operational mode
+ */
+static int cyapa_gen3_bl_exit(struct cyapa *cyapa)
+{
+	int error;
+
+	error = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_exit), bl_exit);
+	if (error)
+		return error;
+
+	/*
+	 * Wait for bootloader to exit, and operation mode to start.
+	 * Normally, this takes at least 50 ms.
+	 */
+	usleep_range(50000, 100000);
+	/*
+	 * In addition, when a device boots for the first time after being
+	 * updated to new firmware, it must first calibrate its sensors, which
+	 * can take up to an additional 2 seconds. If the device power is
+	 * running low, this may take even longer.
+	 */
+	error = cyapa_poll_state(cyapa, 4000);
+	if (error < 0)
+		return error;
+	if (cyapa->state != CYAPA_STATE_OP)
+		return -EAGAIN;
+
+	return 0;
+}
+
+/*
+ * cyapa_get_wait_time_for_pwr_cmd
+ *
+ * Compute the amount of time we need to wait after updating the touchpad
+ * power mode. The touchpad needs to consume the incoming power mode set
+ * command at the current clock rate.
+ */
+
+static u16 cyapa_get_wait_time_for_pwr_cmd(u8 pwr_mode)
+{
+	switch (pwr_mode) {
+	case PWR_MODE_FULL_ACTIVE: return 20;
+	case PWR_MODE_BTN_ONLY: return 20;
+	case PWR_MODE_OFF: return 20;
+	default: return cyapa_pwr_cmd_to_sleep_time(pwr_mode) + 50;
+	}
+}
+
+/*
+ * Set device power mode
+ *
+ * Write to the field to configure power state. Power states include :
+ *   Full : Max scans and report rate.
+ *   Idle : Report rate set by user specified time.
+ *   ButtonOnly : No scans for fingers. When the button is triggered,
+ *     a slave interrupt is asserted to notify host to wake up.
+ *   Off : Only awake for i2c commands from host. No function for button
+ *     or touch sensors.
+ *
+ * The power_mode command should conform to the following :
+ *   Full : 0x3f
+ *   Idle : Configurable from 20 to 1000ms. See note below for
+ *     cyapa_sleep_time_to_pwr_cmd and cyapa_pwr_cmd_to_sleep_time
+ *   ButtonOnly : 0x01
+ *   Off : 0x00
+ *
+ * Device power mode can only be set when device is in operational mode.
+ */
+static int cyapa_gen3_set_power_mode(struct cyapa *cyapa, u8 power_mode,
+		u16 always_unused)
+{
+	int ret;
+	u8 power;
+	int tries = SET_POWER_MODE_TRIES;
+	u16 sleep_time;
+
+	always_unused = 0;
+	if (cyapa->state != CYAPA_STATE_OP)
+		return 0;
+
+	while (tries--) {
+		ret = cyapa_read_byte(cyapa, CYAPA_CMD_POWER_MODE);
+		if (ret >= 0)
+			break;
+		usleep_range(SET_POWER_MODE_DELAY, 2 * SET_POWER_MODE_DELAY);
+	}
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Return early if the power mode to set is the same as the current
+	 * one.
+	 */
+	if ((ret & PWR_MODE_MASK) == power_mode)
+		return 0;
+
+	sleep_time = cyapa_get_wait_time_for_pwr_cmd(ret & PWR_MODE_MASK);
+	power = ret;
+	power &= ~PWR_MODE_MASK;
+	power |= power_mode & PWR_MODE_MASK;
+	tries = SET_POWER_MODE_TRIES;
+	while (tries--) {
+		ret = cyapa_write_byte(cyapa, CYAPA_CMD_POWER_MODE, power);
+		if (!ret)
+			break;
+		usleep_range(SET_POWER_MODE_DELAY, 2 * SET_POWER_MODE_DELAY);
+	}
+
+	/*
+	 * Wait for the newly set power command to go in at the previous
+	 * clock speed (scanrate) used by the touchpad firmware. Not
+	 * doing so before issuing the next command may result in errors
+	 * depending on the command's content.
+	 */
+	msleep(sleep_time);
+	return ret;
+}
+
+static int cyapa_gen3_get_query_data(struct cyapa *cyapa)
+{
+	u8 query_data[QUERY_DATA_SIZE];
+	int ret;
+
+	if (cyapa->state != CYAPA_STATE_OP)
+		return -EBUSY;
+
+	ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_QUERY, query_data);
+	if (ret != QUERY_DATA_SIZE)
+		return (ret < 0) ? ret : -EIO;
+
+	memcpy(&cyapa->product_id[0], &query_data[0], 5);
+	cyapa->product_id[5] = '-';
+	memcpy(&cyapa->product_id[6], &query_data[5], 6);
+	cyapa->product_id[12] = '-';
+	memcpy(&cyapa->product_id[13], &query_data[11], 2);
+	cyapa->product_id[15] = '\0';
+
+	cyapa->fw_maj_ver = query_data[15];
+	cyapa->fw_min_ver = query_data[16];
+
+	cyapa->btn_capability = query_data[19] & CAPABILITY_BTN_MASK;
+
+	cyapa->gen = query_data[20] & 0x0f;
+
+	cyapa->max_abs_x = ((query_data[21] & 0xf0) << 4) | query_data[22];
+	cyapa->max_abs_y = ((query_data[21] & 0x0f) << 8) | query_data[23];
+
+	cyapa->physical_size_x =
+		((query_data[24] & 0xf0) << 4) | query_data[25];
+	cyapa->physical_size_y =
+		((query_data[24] & 0x0f) << 8) | query_data[26];
+
+	cyapa->max_z = 255;
+
+	return 0;
+}
+
+static int cyapa_gen3_bl_query_data(struct cyapa *cyapa)
+{
+	u8 bl_data[CYAPA_CMD_LEN];
+	int ret;
+
+	ret = cyapa_i2c_reg_read_block(cyapa, 0, CYAPA_CMD_LEN, bl_data);
+	if (ret != CYAPA_CMD_LEN)
+		return (ret < 0) ? ret : -EIO;
+
+	/*
+	 * This value will be updated again when entered application mode.
+	 * If TP failed to enter application mode, this fw version values
+	 * can be used as a reference.
+	 * This firmware version valid when fw image checksum is valid.
+	 */
+	if (bl_data[REG_BL_STATUS] ==
+			(BL_STATUS_RUNNING | BL_STATUS_CSUM_VALID)) {
+		cyapa->fw_maj_ver = bl_data[GEN3_BL_IDLE_FW_MAJ_VER_OFFSET];
+		cyapa->fw_min_ver = bl_data[GEN3_BL_IDLE_FW_MIN_VER_OFFSET];
+	}
+
+	return 0;
+}
+
+/*
+ * Check if device is operational.
+ *
+ * An operational device is responding, has exited bootloader, and has
+ * firmware supported by this driver.
+ *
+ * Returns:
+ *   -EBUSY  no device or in bootloader
+ *   -EIO    failure while reading from device
+ *   -EAGAIN device is still in bootloader
+ *           if ->state = CYAPA_STATE_BL_IDLE, device has invalid firmware
+ *   -EINVAL device is in operational mode, but not supported by this driver
+ *   0       device is supported
+ */
+static int cyapa_gen3_do_operational_check(struct cyapa *cyapa)
+{
+	struct device *dev = &cyapa->client->dev;
+	int error;
+
+	switch (cyapa->state) {
+	case CYAPA_STATE_BL_ACTIVE:
+		error = cyapa_gen3_bl_deactivate(cyapa);
+		if (error) {
+			dev_err(dev, "failed to bl_deactivate: %d\n", error);
+			return error;
+		}
+
+	/* Fallthrough state */
+	case CYAPA_STATE_BL_IDLE:
+		/* Try to get firmware version in bootloader mode. */
+		cyapa_gen3_bl_query_data(cyapa);
+
+		error = cyapa_gen3_bl_exit(cyapa);
+		if (error) {
+			dev_err(dev, "failed to bl_exit: %d\n", error);
+			return error;
+		}
+
+	/* Fallthrough state */
+	case CYAPA_STATE_OP:
+		/*
+		 * Reading query data before going back to the full mode
+		 * may cause problems, so we set the power mode first here.
+		 */
+		error = cyapa_gen3_set_power_mode(cyapa,
+				PWR_MODE_FULL_ACTIVE, 0);
+		if (error)
+			dev_err(dev, "%s: set full power mode failed: %d\n",
+				__func__, error);
+		error = cyapa_gen3_get_query_data(cyapa);
+		if (error < 0)
+			return error;
+
+		/* Only support firmware protocol gen3 */
+		if (cyapa->gen != CYAPA_GEN3) {
+			dev_err(dev, "unsupported protocol version (%d)",
+				cyapa->gen);
+			return -EINVAL;
+		}
+
+		/* Only support product ID starting with CYTRA */
+		if (memcmp(cyapa->product_id, unique_str,
+				strlen(unique_str)) != 0) {
+			dev_err(dev, "unsupported product ID (%s)\n",
+				cyapa->product_id);
+			return -EINVAL;
+		}
+
+		return 0;
+
+	default:
+		return -EIO;
+	}
+	return 0;
+}
+
+/*
+ * Return false, do not continue process
+ * Return true, continue process.
+ */
+static bool cyapa_gen3_irq_cmd_handler(struct cyapa *cyapa)
+{
+	/* Not gen3 irq command response, skip for continue. */
+	if (cyapa->gen != CYAPA_GEN3)
+		return true;
+
+	if (cyapa->operational)
+		return true;
+
+	/*
+	 * Driver in detecting or other interface function processing,
+	 * so, stop cyapa_gen3_irq_handler to continue process to
+	 * avoid unwanted to error detecting and processing.
+	 *
+	 * And also, avoid the periodicly accerted interrupts to be processed
+	 * as touch inputs when gen3 failed to launch into application mode,
+	 * which will cause gen3 stays in bootloader mode.
+	 */
+	return false;
+}
+
+static int cyapa_gen3_irq_handler(struct cyapa *cyapa)
+{
+	struct input_dev *input = cyapa->input;
+	struct device *dev = &cyapa->client->dev;
+	struct cyapa_reg_data data;
+	int num_fingers;
+	int ret;
+	int i;
+
+	ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_DATA, (u8 *)&data);
+	if (ret != sizeof(data)) {
+		dev_err(dev, "failed to read report data, (%d)\n", ret);
+		return -EINVAL;
+	}
+
+	if ((data.device_status & OP_STATUS_SRC) != OP_STATUS_SRC ||
+	    (data.device_status & OP_STATUS_DEV) != CYAPA_DEV_NORMAL ||
+	    (data.finger_btn & OP_DATA_VALID) != OP_DATA_VALID) {
+		dev_err(dev, "invalid device state bytes, %02x %02x\n",
+			data.device_status, data.finger_btn);
+		return -EINVAL;
+	}
+
+	num_fingers = (data.finger_btn >> 4) & 0x0f;
+	for (i = 0; i < num_fingers; i++) {
+		const struct cyapa_touch *touch = &data.touches[i];
+		/* Note: touch->id range is 1 to 15; slots are 0 to 14. */
+		int slot = touch->id - 1;
+
+		input_mt_slot(input, slot);
+		input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
+		input_report_abs(input, ABS_MT_POSITION_X,
+				 ((touch->xy_hi & 0xf0) << 4) | touch->x_lo);
+		input_report_abs(input, ABS_MT_POSITION_Y,
+				 ((touch->xy_hi & 0x0f) << 8) | touch->y_lo);
+		input_report_abs(input, ABS_MT_PRESSURE, touch->pressure);
+	}
+
+	input_mt_sync_frame(input);
+
+	if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK)
+		input_report_key(input, BTN_LEFT,
+				 !!(data.finger_btn & OP_DATA_LEFT_BTN));
+	if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK)
+		input_report_key(input, BTN_MIDDLE,
+				 !!(data.finger_btn & OP_DATA_MIDDLE_BTN));
+	if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK)
+		input_report_key(input, BTN_RIGHT,
+				 !!(data.finger_btn & OP_DATA_RIGHT_BTN));
+	input_sync(input);
+
+	return 0;
+}
+
+const struct cyapa_dev_ops cyapa_gen3_ops = {
+	.state_parse = cyapa_gen3_state_parse,
+	.operational_check = cyapa_gen3_do_operational_check,
+
+	.irq_handler = cyapa_gen3_irq_handler,
+	.irq_cmd_handler = cyapa_gen3_irq_cmd_handler,
+
+	.set_power_mode = cyapa_gen3_set_power_mode,
+};
-- 
1.9.1


^ permalink raw reply related

* [PATCH v13 12/12] input: cyapa: add acpi device id supported
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add acpi device tree supported.
acpi device id "CYAP0000" is for old gen3 trackpad devices.
acpi device id "CYAP0001" is for new gen5 trackpad devices.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/cyapa.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index ff8cd9b..c992bd6 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/pm_runtime.h>
+#include <linux/acpi.h>
 #include "cyapa.h"
 
 
@@ -1322,11 +1323,23 @@ static const struct i2c_device_id cyapa_id_table[] = {
 };
 MODULE_DEVICE_TABLE(i2c, cyapa_id_table);
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id cyapa_acpi_id[] = {
+	{ "CYAP0000", 0 },  /* Gen3 trackpad with 0x67 I2C address. */
+	{ "CYAP0001", 0 },  /* Gen5 trackpad with 0x24 I2C address. */
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id);
+#endif
+
 static struct i2c_driver cyapa_driver = {
 	.driver = {
 		.name = "cyapa",
 		.owner = THIS_MODULE,
 		.pm = &cyapa_pm_ops,
+#ifdef CONFIG_ACPI
+		.acpi_match_table = ACPI_PTR(cyapa_acpi_id),
+#endif
 	},
 
 	.probe = cyapa_probe,
-- 
1.9.1

^ permalink raw reply related

* [PATCH v13 11/12] input: cyapa: add gen5 trackpad device force re-calibrate function support
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add force re-calibrate function supported for gen5 trackpad device,
it can be used through sysfs calibrate interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/cyapa_gen5.c | 65 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 5bebee1..7d96904 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -1581,6 +1581,70 @@ static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
 	return 0;
 }
 
+static int cyapa_gen5_calibrate_pwcs(struct cyapa *cyapa,
+		u8 calibrate_sensing_mode_type)
+{
+	u8 cmd[8];
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	/* Try to dump all bufferred data before doing command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	cmd[0] = 0x04;
+	cmd[1] = 0x00;
+	cmd[2] = 0x06;
+	cmd[3] = 0x00;
+	cmd[4] = GEN5_APP_CMD_REPORT_ID;
+	cmd[5] = 0x00;
+	cmd[6] = GEN5_CMD_CALIBRATE;
+	cmd[7] = calibrate_sensing_mode_type;
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			5000, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_CALIBRATE) ||
+			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+		return error < 0 ? error : -EAGAIN;
+
+	return 0;
+}
+
+static ssize_t cyapa_gen5_do_calibrate(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct cyapa *cyapa = dev_get_drvdata(dev);
+	int error, calibrate_error;
+
+	/* 1. Suspend Scanning*/
+	error = cyapa_gen5_suspend_scanning(cyapa);
+	if (error)
+		return error;
+
+	/* 2. Do mutual capacitance fine calibrate. */
+	calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
+				CYAPA_SENSING_MODE_MUTUAL_CAP_FINE);
+	if (calibrate_error)
+		goto resume_scanning;
+
+	/* 3. Do self capacitance calibrate. */
+	calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
+				CYAPA_SENSING_MODE_SELF_CAP);
+	if (calibrate_error)
+		goto resume_scanning;
+
+resume_scanning:
+	/* 4. Resume Scanning*/
+	error = cyapa_gen5_resume_scanning(cyapa);
+	if (error || calibrate_error)
+		return error ? error : calibrate_error;
+
+	return count;
+}
+
 static s32 two_complement_to_s32(s32 value, int num_bits)
 {
 	if (value >> (num_bits - 1))
@@ -2558,6 +2622,7 @@ const struct cyapa_dev_ops cyapa_gen5_ops = {
 	.update_fw = cyapa_gen5_do_fw_update,
 
 	.show_baseline = cyapa_gen5_show_baseline,
+	.calibrate_store = cyapa_gen5_do_calibrate,
 
 	.initialize = cyapa_gen5_initialize,
 
-- 
1.9.1

^ permalink raw reply related

* [PATCH v13 09/12] input: cyapa: add gen5 trackpad device firmware update function support
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add firmware image update function supported for gen5 trackpad device,
it can be used through sysfs update_fw interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/Kconfig      |   2 +-
 drivers/input/mouse/cyapa_gen5.c | 290 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 291 insertions(+), 1 deletion(-)

diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index d8b46b0..63e8b40 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -205,7 +205,7 @@ config MOUSE_BCM5974
 
 config MOUSE_CYAPA
 	tristate "Cypress APA I2C Trackpad support"
-	depends on I2C
+	depends on I2C && CRC_ITU_T
 	help
 	  This driver adds support for Cypress All Points Addressable (APA)
 	  I2C Trackpads, including the ones used in 2012 Samsung Chromebooks.
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 8509046..47a0543 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -18,6 +18,7 @@
 #include <linux/completion.h>
 #include <linux/slab.h>
 #include <linux/unaligned/access_ok.h>
+#include <linux/crc-itu-t.h>
 #include "cyapa.h"
 
 
@@ -911,6 +912,86 @@ static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len)
 	return -EAGAIN;
 }
 
+static int cyapa_gen5_bl_initiate(struct cyapa *cyapa,
+		const struct firmware *fw)
+{
+	u16 length = 0;
+	u16 data_len = 0;
+	u16 meta_data_crc = 0;
+	u16 cmd_crc = 0;
+	u8 bl_gen5_activate[18 + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE + 3];
+	int bl_gen5_activate_size = 0;
+	u8 resp_data[11];
+	int resp_len;
+	struct cyapa_tsg_bin_image *image;
+	int records_num;
+	u8 *data;
+	int error;
+
+	/* Try to dump all bufferred report data before send any command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	bl_gen5_activate_size = sizeof(bl_gen5_activate);
+	memset(bl_gen5_activate, 0, bl_gen5_activate_size);
+
+	/* Output Report Register Address[15:0] = 0004h */
+	bl_gen5_activate[0] = 0x04;
+	bl_gen5_activate[1] = 0x00;
+
+	/* Total command length[15:0] */
+	length = bl_gen5_activate_size - 2;
+	put_unaligned_le16(length, &bl_gen5_activate[2]);
+	bl_gen5_activate[4] = 0x40;  /* Report ID = 40h */
+	bl_gen5_activate[5] = 0x00;  /* RSVD = 00h */
+
+	bl_gen5_activate[6] = GEN5_SOP_KEY;  /* SOP = 01h */
+	bl_gen5_activate[7] = 0x48;  /* Command Code = 48h */
+
+	/* 8 Key bytes and block size */
+	data_len = CYAPA_TSG_BL_KEY_SIZE + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE;
+	/* Data Length[15:0] */
+	put_unaligned_le16(data_len, &bl_gen5_activate[8]);
+	bl_gen5_activate[10] = 0xa5;  /* Key Byte 0 */
+	bl_gen5_activate[11] = 0x01;
+	bl_gen5_activate[12] = 0x02;  /*     .      */
+	bl_gen5_activate[13] = 0x03;  /*     .      */
+	bl_gen5_activate[14] = 0xff;  /*     .      */
+	bl_gen5_activate[15] = 0xfe;
+	bl_gen5_activate[16] = 0xfd;
+	bl_gen5_activate[17] = 0x5a;  /* Key Byte 7 */
+
+	/* Copy 60 bytes Meta Data Row Parameters */
+	image = (struct cyapa_tsg_bin_image *)fw->data;
+	records_num = (fw->size - sizeof(struct cyapa_tsg_bin_image_head)) /
+				sizeof(struct cyapa_tsg_bin_image_data_record);
+	/* APP_INTEGRITY row is always the last row block */
+	data = image->records[records_num - 1].record_data;
+	memcpy(&bl_gen5_activate[18], data, CYAPA_TSG_FLASH_MAP_METADATA_SIZE);
+
+	meta_data_crc = crc_itu_t(0xffff, &bl_gen5_activate[18],
+				CYAPA_TSG_FLASH_MAP_METADATA_SIZE);
+	/* Meta Data CRC[15:0] */
+	put_unaligned_le16(meta_data_crc,
+		&bl_gen5_activate[18 + CYAPA_TSG_FLASH_MAP_METADATA_SIZE]);
+
+	cmd_crc = crc_itu_t(0xffff, &bl_gen5_activate[6], 4 + data_len);
+	put_unaligned_le16(cmd_crc,
+		&bl_gen5_activate[bl_gen5_activate_size - 3]);  /* CRC[15:0] */
+	bl_gen5_activate[bl_gen5_activate_size - 1] = GEN5_EOP_KEY;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			bl_gen5_activate, sizeof(bl_gen5_activate),
+			resp_data, &resp_len, 12000,
+			cyapa_gen5_sort_tsg_pip_bl_resp_data, true);
+	if (error || resp_len != GEN5_BL_INITIATE_RESP_LEN ||
+			resp_data[2] != GEN5_BL_RESP_REPORT_ID ||
+			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+		return error ? error : -EAGAIN;
+
+	return 0;
+}
+
 bool cyapa_gen5_sort_bl_exit_data(struct cyapa *cyapa, u8 *buf, int len)
 {
 	if (buf == NULL || len < GEN5_RESP_LENGTH_SIZE)
@@ -960,6 +1041,210 @@ static int cyapa_gen5_bl_exit(struct cyapa *cyapa)
 	return -ENODEV;
 }
 
+static int cyapa_gen5_bl_enter(struct cyapa *cyapa)
+{
+	int error;
+	u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2F, 0x00, 0x01 };
+	u8 resp_data[2];
+	int resp_len;
+
+	error = cyapa_poll_state(cyapa, 500);
+	if (error < 0)
+		return error;
+	if (cyapa->gen != CYAPA_GEN5)
+		return -EINVAL;
+
+	/* Already in Gen5 BL. Skipping exit. */
+	if (cyapa->state == CYAPA_STATE_GEN5_BL)
+		return 0;
+
+	if (cyapa->state != CYAPA_STATE_GEN5_APP)
+		return -EAGAIN;
+
+	/* Try to dump all bufferred report data before send any command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	/*
+	 * Send bootloader enter command to trackpad device,
+	 * after enter bootloader, the response data is two bytes of 0x00 0x00.
+	 */
+	resp_len = sizeof(resp_data);
+	memset(resp_data, 0, resp_len);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			5000, cyapa_gen5_sort_application_launch_data,
+			true);
+	if (error || resp_data[0] != 0x00 || resp_data[1] != 0x00)
+		return error < 0 ? error : -EAGAIN;
+
+	cyapa->state = CYAPA_STATE_GEN5_BL;
+	return 0;
+}
+
+static int cyapa_gen5_check_fw(struct cyapa *cyapa, const struct firmware *fw)
+{
+	int i;
+	struct cyapa_tsg_bin_image *image;
+	int flash_records_count;
+	u16 expected_app_crc;
+	u16 expected_app_integrity_crc;
+	u16 app_crc = 0;
+	u16 app_integrity_crc = 0;
+	u16 row_num;
+	u8 *data;
+	u32 app_start;
+	u16 app_len;
+	u32 img_start;
+	u16 img_len;
+	int record_index;
+	struct device *dev = &cyapa->client->dev;
+
+	image = (struct cyapa_tsg_bin_image *)fw->data;
+	flash_records_count = (fw->size -
+			sizeof(struct cyapa_tsg_bin_image_head)) /
+			sizeof(struct cyapa_tsg_bin_image_data_record);
+
+	/* APP_INTEGRITY row is always the last row block,
+	 * and the row id must be 0x01ff */
+	row_num = get_unaligned_be16(
+			&image->records[flash_records_count - 1].row_number);
+	if (&image->records[flash_records_count - 1].flash_array_id != 0x00 &&
+			row_num != 0x01ff) {
+		dev_err(dev, "%s: invalid app_integrity data.\n", __func__);
+		return -EINVAL;
+	}
+	data = image->records[flash_records_count - 1].record_data;
+	app_start = get_unaligned_le32(&data[4]);
+	app_len = get_unaligned_le16(&data[8]);
+	expected_app_crc = get_unaligned_le16(&data[10]);
+	img_start = get_unaligned_le32(&data[16]);
+	img_len = get_unaligned_le16(&data[20]);
+	expected_app_integrity_crc = get_unaligned_le16(&data[60]);
+
+	if ((app_start + app_len + img_start + img_len) %
+			CYAPA_TSG_FW_ROW_SIZE) {
+		dev_err(dev, "%s: invalid image alignment.\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Verify app_integrity crc */
+	app_integrity_crc = crc_itu_t(0xffff, data,
+			CYAPA_TSG_APP_INTEGRITY_SIZE);
+	if (app_integrity_crc != expected_app_integrity_crc) {
+		dev_err(dev, "%s: invalid app_integrity crc.\n", __func__);
+		return -EINVAL;
+	}
+
+	/*
+	 * Verify application image CRC
+	 */
+	record_index = app_start / CYAPA_TSG_FW_ROW_SIZE -
+				CYAPA_TSG_IMG_START_ROW_NUM;
+	data = (u8 *)&image->records[record_index].record_data;
+	app_crc = crc_itu_t(0xffff, data, CYAPA_TSG_FW_ROW_SIZE);
+	for (i = 1; i < (app_len / CYAPA_TSG_FW_ROW_SIZE); i++) {
+		data = (u8 *)&image->records[++record_index].record_data;
+		app_crc = crc_itu_t(app_crc, data, CYAPA_TSG_FW_ROW_SIZE);
+	}
+
+	if (app_crc != expected_app_crc) {
+		dev_err(dev, "%s: invalid firmware app crc check.\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int cyapa_gen5_write_fw_block(struct cyapa *cyapa,
+		struct cyapa_tsg_bin_image_data_record *flash_record)
+{
+	u8 flash_array_id;
+	u16 flash_row_id;
+	u16 record_len;
+	u8 *record_data;
+	u8 cmd[144];  /* 13 + 128+ 3 */
+	u16 cmd_len;
+	u16 data_len;
+	u16 crc;
+	u8 resp_data[11];
+	int resp_len;
+	int error;
+
+	flash_array_id = flash_record->flash_array_id;
+	flash_row_id = get_unaligned_be16(&flash_record->row_number);
+	record_len = get_unaligned_be16(&flash_record->record_len);
+	record_data = flash_record->record_data;
+
+	cmd_len = sizeof(cmd) - 2; /* Not include 2 bytes regisetr address. */
+	memset(cmd, 0, cmd_len + 2);
+	cmd[0] = 0x04;  /* Register address */
+	cmd[1] = 0x00;
+
+	put_unaligned_le16(cmd_len, &cmd[2]);
+	cmd[4] = 0x40;  /* Report id 40h */
+	cmd[5] = 0x00;
+
+	cmd[6] = GEN5_SOP_KEY;  /* SOP = 01h */
+	cmd[7] = 0x39;  /* Command code = 39h */
+	/* 1 (Flash Array ID) + 2 (Flash Row ID) + 128 (flash data) */
+	data_len = 3 + record_len;
+	put_unaligned_le16(data_len, &cmd[8]);
+	cmd[10] = flash_array_id;  /* Flash Array ID = 00h */
+	put_unaligned_le16(flash_row_id, &cmd[11]);
+
+	memcpy(&cmd[13], record_data, record_len);
+	crc = crc_itu_t(0xffff, &cmd[6], 4 + data_len);
+	put_unaligned_le16(crc, &cmd[2 + cmd_len - 3]);
+	cmd[2 + cmd_len - 1] = GEN5_EOP_KEY;
+
+	resp_len = sizeof(resp_data);
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, sizeof(cmd),
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_bl_resp_data, true);
+	if (error || resp_len != GEN5_BL_BLOCK_WRITE_RESP_LEN ||
+			resp_data[2] != GEN5_BL_RESP_REPORT_ID ||
+			!GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+		return error < 0 ? error : -EAGAIN;
+
+	return 0;
+}
+
+static int cyapa_gen5_do_fw_update(struct cyapa *cyapa,
+		const struct firmware *fw)
+{
+	struct device *dev = &cyapa->client->dev;
+	struct cyapa_tsg_bin_image *image =
+		(struct cyapa_tsg_bin_image *)fw->data;
+	struct cyapa_tsg_bin_image_data_record *flash_record;
+	int flash_records_count;
+	int i;
+	int error;
+
+	/* Try to dump all bufferred data if exists before send commands. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	flash_records_count =
+		(fw->size - sizeof(struct cyapa_tsg_bin_image_head)) /
+			sizeof(struct cyapa_tsg_bin_image_data_record);
+	/*
+	 * The last flash row 0x01ff has been written through bl_initiate
+	 *  command, so DO NOT write flash 0x01ff to trackpad device.
+	 */
+	for (i = 0; i < (flash_records_count - 1); i++) {
+		flash_record = &image->records[i];
+		error = cyapa_gen5_write_fw_block(cyapa, flash_record);
+		if (error) {
+			dev_err(dev, "%s: Gen5 FW update aborted: %d\n",
+				__func__, error);
+			return error;
+		}
+	}
+
+	return 0;
+}
+
 static int cyapa_gen5_change_power_state(struct cyapa *cyapa, u8 power_state)
 {
 	u8 cmd[8] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x08, 0x01 };
@@ -1648,6 +1933,11 @@ static int cyapa_gen5_irq_handler(struct cyapa *cyapa)
 }
 
 const struct cyapa_dev_ops cyapa_gen5_ops = {
+	.check_fw = cyapa_gen5_check_fw,
+	.bl_enter = cyapa_gen5_bl_enter,
+	.bl_initiate = cyapa_gen5_bl_initiate,
+	.update_fw = cyapa_gen5_do_fw_update,
+
 	.initialize = cyapa_gen5_initialize,
 
 	.state_parse = cyapa_gen5_state_parse,
-- 
1.9.1

^ permalink raw reply related

* [PATCH v13 08/12] input: cyapa: add gen3 trackpad device force re-calibrate function support
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add force re-calibrate function supported for gen3 trackpad device,
it can be used through sysfs calibrate interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/cyapa_gen3.c | 58 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index 3b2ad88..c654109 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -754,6 +754,63 @@ static int cyapa_gen3_do_fw_update(struct cyapa *cyapa,
 	return 0;
 }
 
+static ssize_t cyapa_gen3_do_calibrate(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct cyapa *cyapa = dev_get_drvdata(dev);
+	int tries = 20;  /* max recalibration timeout 2s. */
+	int ret;
+
+	ret = cyapa_read_byte(cyapa, CYAPA_CMD_DEV_STATUS);
+	if (ret < 0) {
+		dev_err(dev, "Error reading dev status: %d\n", ret);
+		goto out;
+	}
+	if ((ret & CYAPA_DEV_NORMAL) != CYAPA_DEV_NORMAL) {
+		dev_warn(dev, "Trackpad device is busy, device state: 0x%02x\n",
+			 ret);
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	ret = cyapa_write_byte(cyapa, CYAPA_CMD_SOFT_RESET,
+			       OP_RECALIBRATION_MASK);
+	if (ret < 0) {
+		dev_err(dev, "Failed to send calibrate command: %d\n",
+			ret);
+		goto out;
+	}
+
+	do {
+		/*
+		 * For this recalibration, the max time will not exceed 2s.
+		 * The average time is approximately 500 - 700 ms, and we
+		 * will check the status every 100 - 200ms.
+		 */
+		usleep_range(100000, 200000);
+
+		ret = cyapa_read_byte(cyapa, CYAPA_CMD_DEV_STATUS);
+		if (ret < 0) {
+			dev_err(dev, "Error reading dev status: %d\n",
+				ret);
+			goto out;
+		}
+		if ((ret & CYAPA_DEV_NORMAL) == CYAPA_DEV_NORMAL)
+			break;
+	} while (--tries);
+
+	if (tries == 0) {
+		dev_err(dev, "Failed to calibrate. Timeout.\n");
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+	dev_dbg(dev, "Calibration successful.\n");
+
+out:
+	return ret < 0 ? ret : count;
+}
+
 static ssize_t cyapa_gen3_show_baseline(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
@@ -1137,6 +1194,7 @@ const struct cyapa_dev_ops cyapa_gen3_ops = {
 	.bl_deactivate = cyapa_gen3_bl_deactivate,
 
 	.show_baseline = cyapa_gen3_show_baseline,
+	.calibrate_store = cyapa_gen3_do_calibrate,
 
 	.state_parse = cyapa_gen3_state_parse,
 	.operational_check = cyapa_gen3_do_operational_check,
-- 
1.9.1

^ permalink raw reply related

* [PATCH v13 07/12] input: cyapa: add gen3 trackpad device read baseline function support
From: Dudley Du @ 2014-12-09  9:11 UTC (permalink / raw)
  To: dmitry.torokhov, rydberg; +Cc: Dudley Du, bleung, linux-input, linux-kernel
In-Reply-To: <1418116304-11392-1-git-send-email-dudley.dulixin@gmail.com>

Add read baseline function supported for gen3 trackpad device,
it can be used through sysfs baseline interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
 drivers/input/mouse/cyapa_gen3.c | 71 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index 1110668..3b2ad88 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -754,6 +754,75 @@ static int cyapa_gen3_do_fw_update(struct cyapa *cyapa,
 	return 0;
 }
 
+static ssize_t cyapa_gen3_show_baseline(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct cyapa *cyapa = dev_get_drvdata(dev);
+	int max_baseline, min_baseline;
+	int tries = 3;
+	int ret;
+
+	ret = cyapa_read_byte(cyapa, CYAPA_CMD_DEV_STATUS);
+	if (ret < 0) {
+		dev_err(dev, "Error reading dev status. err = %d\n", ret);
+		goto out;
+	}
+	if ((ret & CYAPA_DEV_NORMAL) != CYAPA_DEV_NORMAL) {
+		dev_warn(dev, "Trackpad device is busy. device state = 0x%x\n",
+			 ret);
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	ret = cyapa_write_byte(cyapa, CYAPA_CMD_SOFT_RESET,
+			       OP_REPORT_BASELINE_MASK);
+	if (ret < 0) {
+		dev_err(dev, "Failed to send report baseline command. %d\n",
+			ret);
+		goto out;
+	}
+
+	do {
+		usleep_range(10000, 20000);
+
+		ret = cyapa_read_byte(cyapa, CYAPA_CMD_DEV_STATUS);
+		if (ret < 0) {
+			dev_err(dev, "Error reading dev status. err = %d\n",
+				ret);
+			goto out;
+		}
+		if ((ret & CYAPA_DEV_NORMAL) == CYAPA_DEV_NORMAL)
+			break;
+	} while (--tries);
+
+	if (tries == 0) {
+		dev_err(dev, "Device timed out going to Normal state.\n");
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+
+	ret = cyapa_read_byte(cyapa, CYAPA_CMD_MAX_BASELINE);
+	if (ret < 0) {
+		dev_err(dev, "Failed to read max baseline. err = %d\n", ret);
+		goto out;
+	}
+	max_baseline = ret;
+
+	ret = cyapa_read_byte(cyapa, CYAPA_CMD_MIN_BASELINE);
+	if (ret < 0) {
+		dev_err(dev, "Failed to read min baseline. err = %d\n", ret);
+		goto out;
+	}
+	min_baseline = ret;
+
+	dev_dbg(dev, "Baseline report successful. Max: %d Min: %d\n",
+		max_baseline, min_baseline);
+	ret = scnprintf(buf, PAGE_SIZE, "%d %d\n", max_baseline, min_baseline);
+
+out:
+	return ret;
+}
+
 /*
  * cyapa_get_wait_time_for_pwr_cmd
  *
@@ -1067,6 +1136,8 @@ const struct cyapa_dev_ops cyapa_gen3_ops = {
 	.update_fw = cyapa_gen3_do_fw_update,
 	.bl_deactivate = cyapa_gen3_bl_deactivate,
 
+	.show_baseline = cyapa_gen3_show_baseline,
+
 	.state_parse = cyapa_gen3_state_parse,
 	.operational_check = cyapa_gen3_do_operational_check,
 
-- 
1.9.1

^ permalink raw reply related


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