This is a maintainability cleanup; use nice names for all the FX2
commands instead of raw bytes.  This way we can easily find where we
issue FX commands.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The out of tree v4l-dvb build system didn't always override the kernel's
configuration settings with v4l-dvb's settings correctly.  To work around
this, makefiles would define some new macro based on the setting of a
config variable.  e.g. the pwc Makefile would define CONFIG_PWC_DEBUG if
CONFIG_USB_PWC_DEBUG (which is defined via Kconfig) was set.
The v4l-dvb build system should now always override correctly, and this
is no longer necessary.  This patch gets ride of these extra defines and
just uses the CONFIG_* settings directly.
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Before, root privileges were only needed to set hardware registers, not
to read them.  On some hardware, reading from the wrong place at the
wrong time can hang the machine.  So, to be consistent, root privileges
are required to read registers on all hardware.
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Maybe someday there will be a device with a register address space >
32-bits, or maybe an i2c device which uses a protocol > 4 bytes long to
address its registers.
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Functions buffer_release() in bttv-driver.c and
vbi_buffer_release() in bttv-vbi.c are ending with:
      bttv_dma_free(&fh->cap,fh->btv,buf);
 
For vbi it seems to be wrong. Both functions should end with:
 
      bttv_dma_free(q,fh->btv,buf);
Thanks to Peter Schlaf <peter.schlaf@web.de> for pointing this.
Signed-off-by: NMichael H. Schimek <mschimek@gmx.at>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Before this patch, vivi were simulating a scatter gather DMA transfer.
While this is academic, showing how stuff really works on a real PCI 
device, this means a non-optimized code. 
There are only two memory models that vivi implements:
	1) kernel alloced memory. This is also used by read() method.
	   On this case, a vmalloc32 buffer is allocated at kernel;
	2) userspace allocated memory. This is used by most userspace apps.
	   video-buf will store this pointer.
	   a simple copy_to_user is enough to transfer data.
The third memory model scenario supported by video-buf is overlay mode. 
This model is not implemented on vivi and unlikely to be implemented on 
newer drivers, since now, most userspace apps do some post-processing 
(like de-interlacing).
After this patch, some cleanups may be done at video-buf.c to avoid 
allocating pages, when the driver doesn't need a PCI buffer. This is the 
case of vivi and usb drivers.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The direct register access ioctls were defined as kernel internal only,
but they are very useful for debugging hardware from userspace and are
used as such.  Officially export them.

VIDIOC_INT_[SG]_REGISTER is renamed to VIDIOC_DBG_[SG]_REGISTER 
Definition of ioctl and struct v4l2_register is moved from v4l2-common.h 
to videodev2.h.

Types used in struct v4l2_register are changed to the userspace 
exportable versions (u32 -> __u32, etc). 

Use of VIDIOC_DBG_S_REGISTER requires CAP_SYS_ADMIN permission, so move 
the check into the video_ioctl2() dispatcher so it doesn't need to be 
duplicated in each driver's call-back function. CAP_SYS_ADMIN check is 
added to pvrusb2 (which doesn't use video_ioctl2).
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Add support for these ioctls to the video_ioctl2 system and the cx88
driver.
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

pvrusb2 have only one tuner inside. However, as it were not handling
index, a call to v4l-info were returning as if it were an infinite
number of tuners:
$ v4l-info|grep VIDIOC_G_TUNER |head -5
    VIDIOC_G_TUNER(0)
    VIDIOC_G_TUNER(1)
    VIDIOC_G_TUNER(2)
    VIDIOC_G_TUNER(3)
    VIDIOC_G_TUNER(4)
Acked-by: NMike Isely <isely@isely.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

pvrusb2-encoder.c: In function 'pvr2_encoder_cmd':
pvrusb2-encoder.c:195: warning: format '%u' expects
	type 'unsigned int', but argument 3 has type 'long unsigned int'
pvrusb2-encoder.c:205: warning: format '%u' expects
	type 'unsigned int', but argument 3 has type 'long unsigned int'
pvrusb2-encoder.c: In function 'pvr2_encoder_vcmd':
pvrusb2-encoder.c:303: warning: format '%u' expects
	type 'unsigned int', but argument 3 has type 'long unsigned int'
Acked-by: NMike Isely <isely@isely.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Adds support for the combined S-Video/Composite input of the
Terratec Cinergy 1400 DVB-T.
Signed-off-by: NHeiko Baums <heiko@baums-on-web.de>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Nexus CA needs to use a different routing on saa7115 module.
Signed-off-by: NMarco Schluessler <marco@lordzodiac.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Add support for Terratec Cinergy HT PCI
Signed-off-by: NGiorgio Moscardi <software@sukkology.net>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The video_ioctl2 conversion replaced the default from NTSC to PAL_BG.
This broke cx88-blackbird. Probably, there are some badness at this
driver, not doing all required stuff to change video standard.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This patch finishes cx88-blackbird conversion to use video_ioctl2. Video
standards are generated automatically inside videodev.c. the big ioctl
parser is removed, using, instead, video_ioctl2.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

cx88_ioctl were merged at the master ioctl handler on cx88-blackbird
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

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

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

Reorder some ioctl handlers to make easy to convert to video_ioctl2
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

cx88-blackbird were using some ioctl handling that were previously on
cx88-video.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

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

v4l2_tvnorm were meant to describe video standards and its names to V4L2 API.
However, this were doing by some static structures at the driver.

This patch changes the internals in a way that, at the driver, only a
v4l2_tvnorm (a 64 bit integer) should be filled, with all supported 
tvnorms. videodev will dynamically generate the proper API array
based on supported standards.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

video_mux is renamed to cx88_video_mux to be exported to cx88-blackbird
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

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

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

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

video_ioctl2 handler provides V4L2 API parsing.
Using it makes the driver simpler, and isolates API parsing.
This allows future reusage of driver controls using other ways, like sysfs
and/or procfs and increases isolation of driver-specific handling from the
generic common ioctl processing.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

With the previous patch, mplayer started but was polling the video
device forever without any video actually coming out. Further analysis
showed that it does a VIDIOC_S_FMT with width and height set to -1 (!!!).
The code handling this only cares that both are lower than the minimum
range allowed so it ends up setting the size to 19x17 (!!) This pretty
much breaks the encoder here. Even if this breakage is yet another (TM)
result of my setup, setting the size to 19x17 by default would surprise
most users IMHO.
So, special case for -1 and interpret this to be a request for the
default size, please. Users can then set their favorite size both
through mplayer and through sysfs.
With this patch, mplayer finally works in pvr:// mode (not that we
really gain anything over operating it through sysfs with lirc,
sometime I might actually get off my lazy a** and contribute this
setup too)
Signed-off-by: NPantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This should allow mplayer pvr:// to start. The trick is that no matter
what actual input we use under this "fake" one, it will be able to do
stereo :-)
Signed-off-by: NPantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Audio mode changes are not private to the audio chip - other I2C
modules need to see this as well.  And since the command in question
is VIDIOC_S_TUNER which is a standard v4l2 command, we really should
be broadcasting it out.  This change sets up a broadcast pathway for
VIDIOC_S_TUNER and also eliminates the now redundant code from the
audio chip handler.
This fix enables stereo reception for the FM radio
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Attempts to enumerate or operate on a group of EXT_CTRLS where the
group size is zero is OK; don't fail on such operations.  At least one
application uses this to probe for the existence of this API so let it
succeed.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This bug caused uninitalized data to be returned during a G_TUNER status poll.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The lack of a break statement in the handling of VIDIOC_S_TUNER caused
errors to result.  Fixed.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Rather than hardcoding frequency ranges everywhere, rely on
VIDIOC_G_TUNER results wherever we can.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The automodeswitch control was a feature that enable automatic radio /
tv switching based on the selected frequency.  However since frequency
ranges can overlap and also since apparently in some cases it's
possible for the same frequency range to be both tv and radio in a
specific region, then this feature can't safely work.  So it's removed.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>