omap2 camera

omap2 camera

[Viral Mehta]

Hi list,

I am using OMAP2430 board and I wanted to test camera module on that board.
I am using latest 2.6.33 kernel. However, it looks like camera module is not supported with latest kernel.

Anyone is having any idea? Also, do we require to have ex3691 sensor driver in mainline kernel in order to get omap24xxcam working ?

These are the steps I followed,
1. make omap2430_sdp_defconfig
2. Enable omap2 camera option which is under drivers/media/video
3. make uImage

And with this uImage, camera is not working. I would appreciate any help.

Thanks,
Viral

This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system.

______________________________________________________________________

RE: omap2 camera

[Aguirre, Sergio]

Hi Viral,

> -----Original Message-----
> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> owner@vger.kernel.org] On Behalf Of Viral Mehta
> Sent: Monday, March 22, 2010 5:20 AM
> To: linux-media@vger.kernel.org
> Subject: omap2 camera
> 
> Hi list,
> 
> I am using OMAP2430 board and I wanted to test camera module on that
> board.
> I am using latest 2.6.33 kernel. However, it looks like camera module is
> not supported with latest kernel.
> 
> Anyone is having any idea? Also, do we require to have ex3691 sensor
> driver in mainline kernel in order to get omap24xxcam working ?
> 
> These are the steps I followed,
> 1. make omap2430_sdp_defconfig
> 2. Enable omap2 camera option which is under drivers/media/video
> 3. make uImage
> 
> And with this uImage, camera is not working. I would appreciate any help.

I'm adding Sakari Ailus to the CC list, which is the owner of the driver.

Regards,
Sergio

> 
> Thanks,
> Viral
> 
> This Email may contain confidential or privileged information for the
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> not use or disseminate the information, notify the sender and delete it
> from your system.
> 
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Re: omap2 camera

[Sakari Ailus]

Aguirre, Sergio wrote:
> Hi Viral,
> 
>> -----Original Message-----
>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
>> owner@vger.kernel.org] On Behalf Of Viral Mehta
>> Sent: Monday, March 22, 2010 5:20 AM
>> To: linux-media@vger.kernel.org
>> Subject: omap2 camera
>>
>> Hi list,
>>
>> I am using OMAP2430 board and I wanted to test camera module on that
>> board.
>> I am using latest 2.6.33 kernel. However, it looks like camera module is
>> not supported with latest kernel.
>>
>> Anyone is having any idea? Also, do we require to have ex3691 sensor
>> driver in mainline kernel in order to get omap24xxcam working ?
>>
>> These are the steps I followed,
>> 1. make omap2430_sdp_defconfig
>> 2. Enable omap2 camera option which is under drivers/media/video
>> 3. make uImage
>>
>> And with this uImage, camera is not working. I would appreciate any help.
> 
> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.

Thanks, Sergio!

I've only aware of the tcm825x sensor driver that works with the OMAP
2420 camera controller (omap24xxcam) driver.

So likely you'd need the driver for the sensor you have on that board.

The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
but I'm not quite sure what will be the schedule of that. Then we could
get rid of the v4l2-int-device interface that those drives still use.

Regards,

-- 
Sakari Ailus
sakari.ailus@maxwell.research.nokia.com

RE: omap2 camera

[Viral Mehta]

Hi Sakari,
________________________________________
From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
Sent: Monday, March 22, 2010 10:51 PM
To: Aguirre, Sergio
Cc: Viral Mehta; linux-media@vger.kernel.org
Subject: Re: omap2 camera

Aguirre, Sergio wrote:
> Hi Viral,
>
>> -----Original Message-----
>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
>> owner@vger.kernel.org] On Behalf Of Viral Mehta
>> Sent: Monday, March 22, 2010 5:20 AM
>> To: linux-media@vger.kernel.org
>> Subject: omap2 camera
>>
>> Hi list,
>>
>> I am using OMAP2430 board and I wanted to test camera module on that
>> board.
>> I am using latest 2.6.33 kernel. However, it looks like camera module is
>> not supported with latest kernel.
>>
>> Anyone is having any idea? Also, do we require to have ex3691 sensor
>> driver in mainline kernel in order to get omap24xxcam working ?
>>
>> These are the steps I followed,
>> 1. make omap2430_sdp_defconfig
>> 2. Enable omap2 camera option which is under drivers/media/video
>> 3. make uImage
>>
>> And with this uImage, camera is not working. I would appreciate any help.
>
> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.

> Thanks, Sergio!

Thanks for your response. Thanks Sergio.

> I've only aware of the tcm825x sensor driver that works with the OMAP
> 2420 camera controller (omap24xxcam) driver.

Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....

> So likely you'd need the driver for the sensor you have on that board.
Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
I am trying to know if I can forward port that.

> The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
> but I'm not quite sure what will be the schedule of that. Then we could
> get rid of the v4l2-int-device interface that those drives still use.

They are still using v4l2-int-device as of 2.6.33.

Regards,

--
Sakari Ailus
sakari.ailus@maxwell.research.nokia.com

______________________________________________________________________

This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system.

______________________________________________________________________

Re: omap2 camera

[Sakari Ailus]

Viral Mehta wrote:
> Hi Sakari,

Hi Viral,

> ________________________________________
> From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> Sent: Monday, March 22, 2010 10:51 PM
> To: Aguirre, Sergio
> Cc: Viral Mehta; linux-media@vger.kernel.org
> Subject: Re: omap2 camera
> 
> Aguirre, Sergio wrote:
>> Hi Viral,
>>
>>> -----Original Message-----
>>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
>>> owner@vger.kernel.org] On Behalf Of Viral Mehta
>>> Sent: Monday, March 22, 2010 5:20 AM
>>> To: linux-media@vger.kernel.org
>>> Subject: omap2 camera
>>>
>>> Hi list,
>>>
>>> I am using OMAP2430 board and I wanted to test camera module on that
>>> board.
>>> I am using latest 2.6.33 kernel. However, it looks like camera module is
>>> not supported with latest kernel.
>>>
>>> Anyone is having any idea? Also, do we require to have ex3691 sensor
>>> driver in mainline kernel in order to get omap24xxcam working ?
>>>
>>> These are the steps I followed,
>>> 1. make omap2430_sdp_defconfig
>>> 2. Enable omap2 camera option which is under drivers/media/video
>>> 3. make uImage
>>>
>>> And with this uImage, camera is not working. I would appreciate any help.
>>
>> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.
> 
>> Thanks, Sergio!
> 
> Thanks for your response. Thanks Sergio.
> 
>> I've only aware of the tcm825x sensor driver that works with the OMAP
>> 2420 camera controller (omap24xxcam) driver.
> 
> Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
> Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....

I'm not fully aware of the differences in the camera controllers in 2420
and 2430 --- never had a 2430. If they are the same then the driver
should work as it is. Sergio, do you know whether there are differences
between the two?

>> So likely you'd need the driver for the sensor you have on that board.
> Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
> that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
> I am trying to know if I can forward port that.

That one very likely isn't using even the v4l2-int-device. But as soon
as you do, it is very easy to convert it to v4l2_subdev. The interface
is different but the ops are almost the same.

>> The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
>> but I'm not quite sure what will be the schedule of that. Then we could
>> get rid of the v4l2-int-device interface that those drives still use.
> 
> They are still using v4l2-int-device as of 2.6.33.

That's true. AFAIK no work has been done to get rid of this yet.

Regards,

-- 
Sakari Ailus
sakari.ailus@maxwell.research.nokia.com

RE: omap2 camera

[Aguirre, Sergio]

> ________________________________________
> From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> Sent: Monday, March 22, 2010 11:50 PM
> To: Viral Mehta
> Cc: Aguirre, Sergio; linux-media@vger.kernel.org
> Subject: Re: omap2 camera
> 
> Viral Mehta wrote:
> > Hi Sakari,
> 
> Hi Viral,
> 
> > ________________________________________
> > From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> > Sent: Monday, March 22, 2010 10:51 PM
> > To: Aguirre, Sergio
> > Cc: Viral Mehta; linux-media@vger.kernel.org
> > Subject: Re: omap2 camera
> >
> > Aguirre, Sergio wrote:
> >> Hi Viral,
> >>
> >>> -----Original Message-----
> >>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> >>> owner@vger.kernel.org] On Behalf Of Viral Mehta
> >>> Sent: Monday, March 22, 2010 5:20 AM
> >>> To: linux-media@vger.kernel.org
> >>> Subject: omap2 camera
> >>>
> >>> Hi list,
> >>>
> >>> I am using OMAP2430 board and I wanted to test camera module on that
> >>> board.
> >>> I am using latest 2.6.33 kernel. However, it looks like camera module is
> >>> not supported with latest kernel.
> >>>
> >>> Anyone is having any idea? Also, do we require to have ex3691 sensor
> >>> driver in mainline kernel in order to get omap24xxcam working ?
> >>>
> >>> These are the steps I followed,
> >>> 1. make omap2430_sdp_defconfig
> >>> 2. Enable omap2 camera option which is under drivers/media/video
> >>> 3. make uImage
> >>>
> >>> And with this uImage, camera is not working. I would appreciate any help.
> >>
> >> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.
> >
> >> Thanks, Sergio!
> >
> > Thanks for your response. Thanks Sergio.
> >
> >> I've only aware of the tcm825x sensor driver that works with the OMAP
> >> 2420 camera controller (omap24xxcam) driver.
> >
> > Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
> > Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....
> 
> I'm not fully aware of the differences in the camera controllers in 2420
> and 2430 --- never had a 2430. If they are the same then the driver
> should work as it is. Sergio, do you know whether there are differences
> between the two?

Well, I personally haven't worked with OMAP2 family, but by looking at the differences in both chip descriptions:

OMAP 2430 / 2431: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12609&contentId=4672

OMAP 2420: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=11990&contentId=4671

Camera wise, I can see that the 243x chips have interface for 2 cameras, meanwhile the 2420 only has one.

Generally speaking, the xx3x variants are usually more resourceful than xx2x sub-families.

Regards,
Sergio

> 
> >> So likely you'd need the driver for the sensor you have on that board.
> > Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
> > that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
> > I am trying to know if I can forward port that.
> 
> That one very likely isn't using even the v4l2-int-device. But as soon
> as you do, it is very easy to convert it to v4l2_subdev. The interface
> is different but the ops are almost the same.
> 
> >> The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
> >> but I'm not quite sure what will be the schedule of that. Then we could
> >> get rid of the v4l2-int-device interface that those drives still use.
> >
> > They are still using v4l2-int-device as of 2.6.33.
> 
> That's true. AFAIK no work has been done to get rid of this yet.
> 
> Regards,
> 
> --
> Sakari Ailus
> sakari.ailus@maxwell.research.nokia.com
> 

RE: omap2 camera

[Viral Mehta]

________________________________________
From: Aguirre, Sergio [saaguirre@ti.com]
Sent: Tuesday, March 23, 2010 11:54 AM
To: Sakari Ailus; Viral Mehta
Cc: linux-media@vger.kernel.org
Subject: RE: omap2 camera

> ________________________________________
> From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> Sent: Monday, March 22, 2010 11:50 PM
> To: Viral Mehta
> Cc: Aguirre, Sergio; linux-media@vger.kernel.org
> Subject: Re: omap2 camera
>
> Viral Mehta wrote:
> > Hi Sakari,
>
> Hi Viral,
>
> > ________________________________________
> > From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> > Sent: Monday, March 22, 2010 10:51 PM
> > To: Aguirre, Sergio
> > Cc: Viral Mehta; linux-media@vger.kernel.org
> > Subject: Re: omap2 camera
> >
> > Aguirre, Sergio wrote:
> >> Hi Viral,
> >>
> >>> -----Original Message-----
> >>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> >>> owner@vger.kernel.org] On Behalf Of Viral Mehta
> >>> Sent: Monday, March 22, 2010 5:20 AM
> >>> To: linux-media@vger.kernel.org
> >>> Subject: omap2 camera
> >>>
> >>> Hi list,
> >>>
> >>> I am using OMAP2430 board and I wanted to test camera module on that
> >>> board.
> >>> I am using latest 2.6.33 kernel. However, it looks like camera module is
> >>> not supported with latest kernel.
> >>>
> >>> Anyone is having any idea? Also, do we require to have ex3691 sensor
> >>> driver in mainline kernel in order to get omap24xxcam working ?
> >>>
> >>> These are the steps I followed,
> >>> 1. make omap2430_sdp_defconfig
> >>> 2. Enable omap2 camera option which is under drivers/media/video
> >>> 3. make uImage
> >>>
> >>> And with this uImage, camera is not working. I would appreciate any help.
> >>
> >> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.
> >
> >> Thanks, Sergio!
> >
> > Thanks for your response. Thanks Sergio.
> >
> >> I've only aware of the tcm825x sensor driver that works with the OMAP
> >> 2420 camera controller (omap24xxcam) driver.
> >
> > Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
> > Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....
>
> I'm not fully aware of the differences in the camera controllers in 2420
> and 2430 --- never had a 2430. If they are the same then the driver
> should work as it is. Sergio, do you know whether there are differences
> between the two?

> Well, I personally haven't worked with OMAP2 family, but by looking at the differences in both chip descriptions:
> OMAP 2430 / 2431: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12609&contentId=4672
>OMAP 2420: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=11990&contentId=4671

> Camera wise, I can see that the 243x chips have interface for 2 cameras, meanwhile the 2420 only has one.

Comment on top of the file suggests that Author for this driver is Sakari only. I would like to change file name, kconfig, Makefile in case if it does not support omap2430. Any way that I can get HW manual for omap2430 and/or 2420 ?

> Generally speaking, the xx3x variants are usually more resourceful than xx2x sub-families.

Regards,
Sergio

>
> >> So likely you'd need the driver for the sensor you have on that board.
> > Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
> > that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
> > I am trying to know if I can forward port that.
>
> That one very likely isn't using even the v4l2-int-device. But as soon
> as you do, it is very easy to convert it to v4l2_subdev. The interface
> is different but the ops are almost the same.
>
> >> The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
> >> but I'm not quite sure what will be the schedule of that. Then we could
> >> get rid of the v4l2-int-device interface that those drives still use.
> >
> > They are still using v4l2-int-device as of 2.6.33.
>
> That's true. AFAIK no work has been done to get rid of this yet.
>
> Regards,
>
> --
> Sakari Ailus
> sakari.ailus@maxwell.research.nokia.com
>

______________________________________________________________________

This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system.

______________________________________________________________________

Re: omap2 camera

[Hans Verkuil]

On Tuesday 23 March 2010 06:50:17 Sakari Ailus wrote:
> Viral Mehta wrote:
> > Hi Sakari,
> 
> Hi Viral,
> 
> > ________________________________________
> > From: Sakari Ailus [sakari.ailus@maxwell.research.nokia.com]
> > Sent: Monday, March 22, 2010 10:51 PM
> > To: Aguirre, Sergio
> > Cc: Viral Mehta; linux-media@vger.kernel.org
> > Subject: Re: omap2 camera
> > 
> > Aguirre, Sergio wrote:
> >> Hi Viral,
> >>
> >>> -----Original Message-----
> >>> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> >>> owner@vger.kernel.org] On Behalf Of Viral Mehta
> >>> Sent: Monday, March 22, 2010 5:20 AM
> >>> To: linux-media@vger.kernel.org
> >>> Subject: omap2 camera
> >>>
> >>> Hi list,
> >>>
> >>> I am using OMAP2430 board and I wanted to test camera module on that
> >>> board.
> >>> I am using latest 2.6.33 kernel. However, it looks like camera module is
> >>> not supported with latest kernel.
> >>>
> >>> Anyone is having any idea? Also, do we require to have ex3691 sensor
> >>> driver in mainline kernel in order to get omap24xxcam working ?
> >>>
> >>> These are the steps I followed,
> >>> 1. make omap2430_sdp_defconfig
> >>> 2. Enable omap2 camera option which is under drivers/media/video
> >>> 3. make uImage
> >>>
> >>> And with this uImage, camera is not working. I would appreciate any help.
> >>
> >> I'm adding Sakari Ailus to the CC list, which is the owner of the driver.
> > 
> >> Thanks, Sergio!
> > 
> > Thanks for your response. Thanks Sergio.
> > 
> >> I've only aware of the tcm825x sensor driver that works with the OMAP
> >> 2420 camera controller (omap24xxcam) driver.
> > 
> > Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
> > Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....
> 
> I'm not fully aware of the differences in the camera controllers in 2420
> and 2430 --- never had a 2430. If they are the same then the driver
> should work as it is. Sergio, do you know whether there are differences
> between the two?
> 
> >> So likely you'd need the driver for the sensor you have on that board.
> > Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
> > that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
> > I am trying to know if I can forward port that.
> 
> That one very likely isn't using even the v4l2-int-device. But as soon
> as you do, it is very easy to convert it to v4l2_subdev. The interface
> is different but the ops are almost the same.
> 
> >> The omap24xxcam and tcm825x drivers should be moved to use v4l2_subdev
> >> but I'm not quite sure what will be the schedule of that. Then we could
> >> get rid of the v4l2-int-device interface that those drives still use.
> > 
> > They are still using v4l2-int-device as of 2.6.33.
> 
> That's true. AFAIK no work has been done to get rid of this yet.

And if anyone is going to work on this, then *please* convert it to subdev!
It shouldn't be that much work. omap24xxcam and tcm825x are the only ones
still using this and it would be great if they are converted. Then omap24xxcam
can use other sensors and the tcm825x can be used with other video hardware.

Regards,

	Hans

-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG

RE: omap2 camera

[Viral Mehta]

>> Thanks, Sergio!

>Thanks for your response. Thanks Sergio.

>> I've only aware of the tcm825x sensor driver that works with the OMAP
>> 2420 camera controller (omap24xxcam) driver.

>Does this also mean that omap24xxcam.ko will *only* work with OMAP2420?
>Or the same driver can be used for OMAP2430 board as well ?  As name suggests, omap24xxcam....

>> So likely you'd need the driver for the sensor you have on that board.
>Okie, I am trying to get that done. I took linux-2.6.14-V5 kernel from linux.omap.com and
>that supports camera on OMAP2430 and it has functional driver for ex3691 sensor.
>I am trying to know if I can forward port that.

I started forward porting that and I found out there is no support for OMAP 2430 i2c-controller with the latest kernel.

I dont understand whether latest kernel at all supports anything on OMAP2430 or not :(

This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system.

______________________________________________________________________