Commit ba47652b authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

media: meye: remove this deprecated driver 



The meye driver does not use the vb2 framework for streaming
video, instead it implements this in the driver. This is error prone,
and nobody stepped in to convert this driver to that framework.

The hardware is very old, so the decision was made to remove it
altogether.

Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 58388bd7

Documentation/admin-guide/media/meye.rst

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.. SPDX-License-Identifier: GPL-2.0



.. include:: <isonum.txt>



Vaio Picturebook Motion Eye Camera Driver

=========================================



Copyright |copy| 2001-2004 Stelian Pop <stelian@popies.net>



Copyright |copy| 2001-2002 Alcôve <www.alcove.com>



Copyright |copy| 2000 Andrew Tridgell <tridge@samba.org>



This driver enable the use of video4linux compatible applications with the

Motion Eye camera. This driver requires the "Sony Laptop Extras" driver (which

can be found in the "Misc devices" section of the kernel configuration utility)

to be compiled and installed (using its "camera=1" parameter).



It can do at maximum 30 fps @ 320x240 or 15 fps @ 640x480.



Grabbing is supported in packed YUV colorspace only.



MJPEG hardware grabbing is supported via a private API (see below).



Hardware supported

------------------



This driver supports the 'second' version of the MotionEye camera :)



The first version was connected directly on the video bus of the Neomagic

video card and is unsupported.



The second one, made by Kawasaki Steel is fully supported by this

driver (PCI vendor/device is 0x136b/0xff01)



The third one, present in recent (more or less last year) Picturebooks

(C1M* models), is not supported. The manufacturer has given the specs

to the developers under a NDA (which allows the development of a GPL

driver however), but things are not moving very fast (see

http://r-engine.sourceforge.net/) (PCI vendor/device is 0x10cf/0x2011).



There is a forth model connected on the USB bus in TR1* Vaio laptops.

This camera is not supported at all by the current driver, in fact

little information if any is available for this camera

(USB vendor/device is 0x054c/0x0107).



Driver options

--------------



Several options can be passed to the meye driver using the standard

module argument syntax (<param>=<value> when passing the option to the

module or meye.<param>=<value> on the kernel boot line when meye is

statically linked into the kernel). Those options are:



.. code-block:: none



	gbuffers:	number of capture buffers, default is 2 (32 max)



	gbufsize:	size of each capture buffer, default is 614400



	video_nr:	video device to register (0 = /dev/video0, etc)



Module use

----------



In order to automatically load the meye module on use, you can put those lines

in your /etc/modprobe.d/meye.conf file:



.. code-block:: none



	alias char-major-81 videodev

	alias char-major-81-0 meye

	options meye gbuffers=32



Usage:

------



.. code-block:: none



	xawtv >= 3.49 (<http://bytesex.org/xawtv/>)

		for display and uncompressed video capture:



			xawtv -c /dev/video0 -geometry 640x480

				or

			xawtv -c /dev/video0 -geometry 320x240



	motioneye (<http://popies.net/meye/>)

		for getting ppm or jpg snapshots, mjpeg video



Bugs / Todo

-----------



- 'motioneye' still uses the meye private v4l1 API extensions.

Documentation/admin-guide/media/pci-cardlist.rst

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@@ -77,7 +77,6 @@ ipu3-cio2 Intel ipu3-cio2 driver 
ivtv              Conexant cx23416/cx23415 MPEG encoder/decoder

ivtvfb            Conexant cx23415 framebuffer

mantis            MANTIS based cards

meye              Sony Vaio Picturebook Motion Eye

mxb               Siemens-Nixdorf 'Multimedia eXtension Board'

netup-unidvb      NetUP Universal DVB card

ngene             Micronas nGene

Documentation/admin-guide/media/v4l-drivers.rst

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@@ -19,7 +19,6 @@ Video4Linux (V4L) driver-specific documentation 
	imx7

	ipu3

	ivtv

	meye

	omap3isp

	omap4_camera

	philips

Documentation/userspace-api/media/drivers/index.rst

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@@ -37,7 +37,6 @@ For more details see the file COPYING in the source distribution of Linux. 
	dw100

	imx-uapi

	max2175

	meye-uapi

	omap3isp-uapi

	st-vgxy61

	uvcvideo

Documentation/userspace-api/media/drivers/meye-uapi.rst

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.. SPDX-License-Identifier: GPL-2.0



.. include:: <isonum.txt>



Vaio Picturebook Motion Eye Camera Driver

=========================================



Copyright |copy| 2001-2004 Stelian Pop <stelian@popies.net>



Copyright |copy| 2001-2002 Alcôve <www.alcove.com>



Copyright |copy| 2000 Andrew Tridgell <tridge@samba.org>



Private API

-----------



The driver supports frame grabbing with the video4linux API,

so all video4linux tools (like xawtv) should work with this driver.



Besides the video4linux interface, the driver has a private interface

for accessing the Motion Eye extended parameters (camera sharpness,

agc, video framerate), the snapshot and the MJPEG capture facilities.



This interface consists of several ioctls (prototypes and structures

can be found in include/linux/meye.h):



MEYEIOC_G_PARAMS and MEYEIOC_S_PARAMS

	Get and set the extended parameters of the motion eye camera.

	The user should always query the current parameters with

	MEYEIOC_G_PARAMS, change what he likes and then issue the

	MEYEIOC_S_PARAMS call (checking for -EINVAL). The extended

	parameters are described by the meye_params structure.





MEYEIOC_QBUF_CAPT

	Queue a buffer for capture (the buffers must have been

	obtained with a VIDIOCGMBUF call and mmap'ed by the

	application). The argument to MEYEIOC_QBUF_CAPT is the

	buffer number to queue (or -1 to end capture). The first

	call to MEYEIOC_QBUF_CAPT starts the streaming capture.



MEYEIOC_SYNC

	Takes as an argument the buffer number you want to sync.

	This ioctl blocks until the buffer is filled and ready

	for the application to use. It returns the buffer size.



MEYEIOC_STILLCAPT and MEYEIOC_STILLJCAPT

	Takes a snapshot in an uncompressed or compressed jpeg format.

	This ioctl blocks until the snapshot is done and returns (for

	jpeg snapshot) the size of the image. The image data is

	available from the first mmap'ed buffer.



Look at the 'motioneye' application code for an actual example.