Parallel CMOS Image Sensor with UART Control Interface

Parallel CMOS Image Sensor with UART Control Interface

[James]

Dear all,

Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
that uses Parallel CMOS H/V and can only be control by UART interface
instead of the common I2C or SPI interface?

A similar sensor is the STMicroelectronics VL5510 Image Sensor
although it support all 3 types of control interface.
(http://www.st.com/internet/automotive/product/178477.jsp)

Most or all the drivers found I found under drivers/media/video uses
the I2C or SPI interface instead

I'm new to writing driver and need a reference v4l2 driver for this
type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
board.

I just need a very simple v4l2 driver that can extract the image from
the sensor and control over it via the UART control interface.

Any help is very much appreciated.

Thanks in adv.

-- 
Regards,
James

Re: Parallel CMOS Image Sensor with UART Control Interface

[Sakari Ailus]

On Mon, Jul 25, 2011 at 04:43:21PM +0800, James wrote:
> Dear all,
> 
> Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
> that uses Parallel CMOS H/V and can only be control by UART interface
> instead of the common I2C or SPI interface?
> 
> A similar sensor is the STMicroelectronics VL5510 Image Sensor
> although it support all 3 types of control interface.
> (http://www.st.com/internet/automotive/product/178477.jsp)
> 
> Most or all the drivers found I found under drivers/media/video uses
> the I2C or SPI interface instead
> 
> I'm new to writing driver and need a reference v4l2 driver for this
> type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
> board.
> 
> I just need a very simple v4l2 driver that can extract the image from
> the sensor and control over it via the UART control interface.
> 
> Any help is very much appreciated.

Hi James,

I think there has been a recent discussion on a similar topic under the
subject "RE: FW: OMAP 3 ISP". The way to do this would be to implement
platform subdevs in V4L2 core, which I think we don't have quite yet.

Cc Laurent and Michael.

-- 
Sakari Ailus
sakari.ailus@iki.fi

Re: Parallel CMOS Image Sensor with UART Control Interface

[James]

On Wed, Jul 27, 2011 at 3:40 AM, Sakari Ailus <sakari.ailus@iki.fi> wrote:
> On Mon, Jul 25, 2011 at 04:43:21PM +0800, James wrote:
>> Dear all,
>>
>> Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
>> that uses Parallel CMOS H/V and can only be control by UART interface
>> instead of the common I2C or SPI interface?
>>
>> A similar sensor is the STMicroelectronics VL5510 Image Sensor
>> although it support all 3 types of control interface.
>> (http://www.st.com/internet/automotive/product/178477.jsp)
>>
>> Most or all the drivers found I found under drivers/media/video uses
>> the I2C or SPI interface instead
>>
>> I'm new to writing driver and need a reference v4l2 driver for this
>> type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
>> board.
>>
>> I just need a very simple v4l2 driver that can extract the image from
>> the sensor and control over it via the UART control interface.
>>
>> Any help is very much appreciated.
>
> Hi James,
>
> I think there has been a recent discussion on a similar topic under the
> subject "RE: FW: OMAP 3 ISP". The way to do this would be to implement
> platform subdevs in V4L2 core, which I think we don't have quite yet.
>
> Cc Laurent and Michael.
>
> --
> Sakari Ailus
> sakari.ailus@iki.fi
>

Hi Sakari,

Thanks for pointing me to the discussion thread.

I found it from the archive at
http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/32700/focus=32721

I read through the threads and see that I'm indeed in similar
situation with Alex.

We both have sensor that output CMOS H/V image and only have
UART/RS232 for control of the sensor operations via sending/reading
packet of bytes. i.e. AGC, contrast, brightness etc..

Since the thread ended on 29-Jun, is there anymore update or information?

As I've a MT9V032 camera with Gusmtix Overo, I was hoping to rely on
the MT9V032 driver as a starting point and adapt it for the VL5510
sensor using only the UART interface.

Thanks in adv.

-- 
Regards,
James

Re: Parallel CMOS Image Sensor with UART Control Interface

[Laurent Pinchart]

Hi James,

On Wednesday 27 July 2011 07:41:59 James wrote:
> On Wed, Jul 27, 2011 at 3:40 AM, Sakari Ailus <sakari.ailus@iki.fi> wrote:
> > On Mon, Jul 25, 2011 at 04:43:21PM +0800, James wrote:
> >> Dear all,
> >> 
> >> Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
> >> that uses Parallel CMOS H/V and can only be control by UART interface
> >> instead of the common I2C or SPI interface?
> >> 
> >> A similar sensor is the STMicroelectronics VL5510 Image Sensor
> >> although it support all 3 types of control interface.
> >> (http://www.st.com/internet/automotive/product/178477.jsp)
> >> 
> >> Most or all the drivers found I found under drivers/media/video uses
> >> the I2C or SPI interface instead
> >> 
> >> I'm new to writing driver and need a reference v4l2 driver for this
> >> type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
> >> board.
> >> 
> >> I just need a very simple v4l2 driver that can extract the image from
> >> the sensor and control over it via the UART control interface.
> >> 
> >> Any help is very much appreciated.
> > 
> > Hi James,
> > 
> > I think there has been a recent discussion on a similar topic under the
> > subject "RE: FW: OMAP 3 ISP". The way to do this would be to implement
> > platform subdevs in V4L2 core, which I think we don't have quite yet.
> > 
> > Cc Laurent and Michael.
> 
> Hi Sakari,
> 
> Thanks for pointing me to the discussion thread.
> 
> I found it from the archive at
> http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/3270
> 0/focus=32721
> 
> I read through the threads and see that I'm indeed in similar
> situation with Alex.
> 
> We both have sensor that output CMOS H/V image and only have
> UART/RS232 for control of the sensor operations via sending/reading
> packet of bytes. i.e. AGC, contrast, brightness etc..
> 
> Since the thread ended on 29-Jun, is there anymore update or information?
> 
> As I've a MT9V032 camera with Gusmtix Overo, I was hoping to rely on
> the MT9V032 driver as a starting point and adapt it for the VL5510
> sensor using only the UART interface.

As a quick hack, to start with, you can still use an I2C subdev driver. Just 
remove all I2C-related code from the driver, and register a fake I2C device in 
board code. That will let you at least develop the driver and test the UART 
interface.

-- 
Regards,

Laurent Pinchart

RE: Parallel CMOS Image Sensor with UART Control Interface

[Alex Gershgorin]

Hi All,

I want to say that in the beginning I encountered the same problem, but with the support of Laurent and other guys, today on my system OMAP3 ISP successfully passes registration.
To my yet, I still cannot connect my video source because it's missing, but I successfully configure pipeline with use MC User space API.

Regards,

Alex Gershgorin




-----Original Message-----
From: Laurent Pinchart [mailto:laurent.pinchart@ideasonboard.com]
Sent: Wednesday, July 27, 2011 11:59 AM
To: James
Cc: Sakari Ailus; linux-media@vger.kernel.org; michael.jones@matrix-vision.de; Alex Gershgorin
Subject: Re: Parallel CMOS Image Sensor with UART Control Interface

Hi James,

On Wednesday 27 July 2011 07:41:59 James wrote:
> On Wed, Jul 27, 2011 at 3:40 AM, Sakari Ailus <sakari.ailus@iki.fi> wrote:
> > On Mon, Jul 25, 2011 at 04:43:21PM +0800, James wrote:
> >> Dear all,
> >>
> >> Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
> >> that uses Parallel CMOS H/V and can only be control by UART interface
> >> instead of the common I2C or SPI interface?
> >>
> >> A similar sensor is the STMicroelectronics VL5510 Image Sensor
> >> although it support all 3 types of control interface.
> >> (http://www.st.com/internet/automotive/product/178477.jsp)
> >>
> >> Most or all the drivers found I found under drivers/media/video uses
> >> the I2C or SPI interface instead
> >>
> >> I'm new to writing driver and need a reference v4l2 driver for this
> >> type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
> >> board.
> >>
> >> I just need a very simple v4l2 driver that can extract the image from
> >> the sensor and control over it via the UART control interface.
> >>
> >> Any help is very much appreciated.
> >
> > Hi James,
> >
> > I think there has been a recent discussion on a similar topic under the
> > subject "RE: FW: OMAP 3 ISP". The way to do this would be to implement
> > platform subdevs in V4L2 core, which I think we don't have quite yet.
> >
> > Cc Laurent and Michael.
>
> Hi Sakari,
>
> Thanks for pointing me to the discussion thread.
>
> I found it from the archive at
> http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/3270
> 0/focus=32721
>
> I read through the threads and see that I'm indeed in similar
> situation with Alex.
>
> We both have sensor that output CMOS H/V image and only have
> UART/RS232 for control of the sensor operations via sending/reading
> packet of bytes. i.e. AGC, contrast, brightness etc..
>
> Since the thread ended on 29-Jun, is there anymore update or information?
>
> As I've a MT9V032 camera with Gusmtix Overo, I was hoping to rely on
> the MT9V032 driver as a starting point and adapt it for the VL5510
> sensor using only the UART interface.

As a quick hack, to start with, you can still use an I2C subdev driver. Just
remove all I2C-related code from the driver, and register a fake I2C device in
board code. That will let you at least develop the driver and test the UART
interface.

--
Regards,

Laurent Pinchart


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Re: Parallel CMOS Image Sensor with UART Control Interface

[Guennadi Liakhovetski]

On Wed, 27 Jul 2011, James wrote:

> On Wed, Jul 27, 2011 at 3:40 AM, Sakari Ailus <sakari.ailus@iki.fi> wrote:
> > On Mon, Jul 25, 2011 at 04:43:21PM +0800, James wrote:
> >> Dear all,
> >>
> >> Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
> >> that uses Parallel CMOS H/V and can only be control by UART interface
> >> instead of the common I2C or SPI interface?
> >>
> >> A similar sensor is the STMicroelectronics VL5510 Image Sensor
> >> although it support all 3 types of control interface.
> >> (http://www.st.com/internet/automotive/product/178477.jsp)
> >>
> >> Most or all the drivers found I found under drivers/media/video uses
> >> the I2C or SPI interface instead
> >>
> >> I'm new to writing driver and need a reference v4l2 driver for this
> >> type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
> >> board.
> >>
> >> I just need a very simple v4l2 driver that can extract the image from
> >> the sensor and control over it via the UART control interface.
> >>
> >> Any help is very much appreciated.
> >
> > Hi James,
> >
> > I think there has been a recent discussion on a similar topic under the
> > subject "RE: FW: OMAP 3 ISP". The way to do this would be to implement
> > platform subdevs in V4L2 core, which I think we don't have quite yet.
> >
> > Cc Laurent and Michael.
> >
> > --
> > Sakari Ailus
> > sakari.ailus@iki.fi
> >
> 
> Hi Sakari,
> 
> Thanks for pointing me to the discussion thread.
> 
> I found it from the archive at
> http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/32700/focus=32721
> 
> I read through the threads and see that I'm indeed in similar
> situation with Alex.
> 
> We both have sensor that output CMOS H/V image and only have
> UART/RS232 for control of the sensor operations via sending/reading
> packet of bytes. i.e. AGC, contrast, brightness etc..
> 
> Since the thread ended on 29-Jun, is there anymore update or information?

Probably obvious, but just to have it mentioned in this thread, such UART 
driver should certainly be implemented as a line discipline.

Thanks
Guennadi

> 
> As I've a MT9V032 camera with Gusmtix Overo, I was hoping to rely on
> the MT9V032 driver as a starting point and adapt it for the VL5510
> sensor using only the UART interface.
> 
> Thanks in adv.
> 
> -- 
> Regards,
> James
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

Re: Parallel CMOS Image Sensor with UART Control Interface

[James]

Hi Guennadi,

>> We both have sensor that output CMOS H/V image and only have
>> UART/RS232 for control of the sensor operations via sending/reading
>> packet of bytes. i.e. AGC, contrast, brightness etc..
>>
>> Since the thread ended on 29-Jun, is there anymore update or information?
>
> Probably obvious, but just to have it mentioned in this thread, such UART
> driver should certainly be implemented as a line discipline.
>
> Thanks
> Guennadi

Do you have any working example that I can adapt as per your suggestion?

Thanks in adv.

-- 
Regards,
James

Parallel CMOS Image Sensor with UART Control Interface

[James]

Dear all,

Does anyone came across a v4l2 Linux Device Driver for an Image Sensor
that uses Parallel CMOS H/V and can only be control by UART interface
instead of the common I2C or SPI interface?

A similar sensor is the STMicroelectronics VL5510 Image Sensor
although it support all 3 types of control interface.
(http://www.st.com/internet/automotive/product/178477.jsp)

Most or all the drivers found I found under drivers/media/video uses
the I2C or SPI interface instead

I'm new to writing driver and need a reference v4l2 driver for this
type of image sensor to work with OMAP3530 ISP port on Gumstix's Overo
board.

I just need a very simple v4l2 driver that can extract the image from
the sensor and control over it via the UART control interface.

Any help is very much appreciated.

Thanks in adv.

--
Regards,
James

-- 
Regards,
James