This patch adds dvbt support for the terratec cinergy hybrid T usb xsstick.
Thanks to Devin Heitmueller and Mauro Chehab for guiding me.
Signed-off-by: NReinhard Schwab <reinhard.schwab@aon.at>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

All ioctl callbacks are now stored in a new v4l2_ioctl_ops struct. Drivers fill in
a const struct v4l2_ioctl_ops and video_device just contains a const pointer to it.

This ensures a clean separation between the const ops struct and the non-const
video_device struct.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Converted the last users of audiochip.h to the v4l2-chip-ident.h header
and remove the now unused audiochip.h header.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The functions in a header should not belong to another module. The prio functions
belong to v4l2-common.c, so move them to v4l2-common.h.

The ioctl functions belong to v4l2-ioctl.c, so create a new v4l2-ioctl.h header
and move those functions to it.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The field 'dev' is not the video device, but the parent of the video device.
Rename accordingly.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Also remove some blank lines that were used to split compat code at -devel
tree.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-cards.c
em28xx-input.c
em28xx-video.c
em28xx.h
 - Add support for the PointNix Intra-Oral Camera, which required addition of
   a construct for reading the "snapshot" button (provided on the em2860 and
   em2880 chips, but this is the first case where I have seen it actually used
   in a product). The button is wired to pin 56 on the em2880.

   http://www.pointnix.com/ENG/dental/product_02.asp

   Thanks to Roberto Mantovani <rmantovani@libero.it> for testing the changes
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

 - Separate the newer variant of the HVR-900 into its own device profile
   because it has a Micronas DRX397 instead of the Zarlink demod.  This
   doesn't make the device work, but at least we don't try to initialize it
   as though it had the Zarlink device.
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
[mchehab@infradead.org: avoid compilation breakage at mainstream, where drx397xD.h doesn't exist yet]
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The naming for the callbacks that handle the VIDIOC_ENUM_FMT and
VIDIOC_S/G/TRY_FMT ioctls was very confusing. Renamed it to match
the v4l2_buf_type name.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

On some alsa versions, it seems that snd_pcm_substream_chip(substream)
is returning a NULL pointer. This causes an OOPS, as reported by:

https://bugs.launchpad.net/ubuntu/+source/linux-ubuntu-modules-2.6.24/+bug/212271
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/212960

This patch avoids the OOPS by not letting and open() succeed.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-cards.c
em28xx-reg.h
 - Add em2860 chip ID (seen on Pointnix Intra-Oral Camera)
   http://www.pointnix.com/ENG/dental/product_02.aspSigned-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-audio.c
em28xx-dvb.c
 - Em28xx extensions should ensure they are being only loaded against devices
   that support them.  Deals with case where there are multiple em28xx
   devices, some of which have DVB (or ALSA) support and some do not.
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-cards.c
 - DVB support is supposed to be enabled for the first generation HVR-900.
   This device was confirmed with DVB by mkrufky when we did the original work
   in April, but I guess we forgot to set the flag.
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-video.c
 - Properly handle loading of the module when multiple devices are already
   connected (such as at bootup).  Before we were only calling dvb_init()
   against the last device in the list, so while we were handling subsequent
   adds properly, if there were multiple devices present on driver load,
   everybody except the last device would not get initialized.
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-dvb doesn't need FW_LOADER. Instead, tuner-xc2028 needs to select
FW_LOADER.

Also, this can happen only if HOTPLUG is selected, since FW_LOADER
is dependent on HOTPLUG.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

VIDEO_TUNER is responsible for compilation of tuners.ko module. This were the
previous behaviour before the creation of MEDIA_TUNER.

Before this patch, tuner.ko were created even for drivers that don't need a
tuner (like webcam drivers).
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

namespace for all of them.

There were several issues in the past, caused by the hybrid tuner design, since
now, the same tuner can be used by drivers/media/dvb and drivers/media/video.

Kconfig items were rearranged, to split V4L/DVB core from their drivers.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Fixes a copy and paste error in check of kzalloc return value. The check block
was copied from the previous allocation but the variable wasn't exchanged.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-core.c
 - Drop the severity level of the "urb resubmit failed" to debug, since it
   occurs every time a stream disconnects, which fills the dmesg log
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Thanks to Aidan Thornton <makosoft@googlemail.com> for helping
to test this firmware
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The setup is already done at open().
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The driver should be switched to digital mode, when trying to access the
frontend or when streaming.

This patch provides the correct code to support this feature.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Before this patch,  HVR900/HVR950 were incorreclty going back to analog. The
result is that only digital were working.

This patch provides the proper setup for analog/digital and tuner callback.
It also properly resets analog into a sane state at open().

Thanks to Steven Toth <stoth@linuxtv.org> and Michael Krufky <mkrufky@linuxtv.org>
for helping to set the proper parameters to GPO/GPIO em2883 ports.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Those printk's were adding more info to a line that were already being
printed.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Now, all registers will follow the same convension:

EM28XX_R<reg_number>_<reg_name>

This allows to associate a register with its value, and also with a canonical
name. Also, registers that are specific to a given chip were renamed accordingly,
as EM2800_foo (for 2800 only registers) or EM2880_foo (for registers that started
to appear on em2880).
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Before this patch, registers 0x04 and 0x08 were referenced by its value. This is
bad, since makes harder for someone to understand what this is doing.

This patch renames those two registers into an appropriate name.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx.h contains lots of different stuff inside. The better is to break it on
some files.

This patch removes the register names, moving them to a separate file.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This is more conservative than just removing the msleep() from
em28xx_write_regs_req(), since some old hardware may still need it.
So, it will remove the sleep time only for those chips where this
removal were tested.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-core.c:
 - Remove sleep in i2c message routine which slows down i2c by a factor
   10x.  Load time for BASE firmware went from 13s to .973s
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

em28xx-dvb.c:
 - Remove unneeded xc3028_ctrl structure.  The driver automatically preserves
   the previous value

tuner-xc2028.c:
 - Make the return type for xc2028_get_reg signed, since all of the callers
   are looking for "< 0" to detect errors.
Signed-off-by: NDevin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NDouglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The analog entries are wrong. Fix it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>