Report to soc_camera which standards are supported by tw9910.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Tested-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

While there was already a g_tvnorms_output video op, it's counterpart for
video capture was missing. Add it.

This is necessary for generic bridge drivers like soc-camera to set the
video_device tvnorms field correctly. Otherwise ENUMSTD cannot work.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Tested-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The input field in struct v4l2_buffer no longer exists but has been replaced
by a reserved field. Remove the field documentation.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

V4L2_MBUS_FRAME_DESC_FL_BLOB intends to say the receiver must use 1D DMA to
receive the image, as the format does not have line offsets. This typically
includes all compressed formats.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

When the sub-device is registered, increment the use count of the sub-device
owner only if it's different from the owner of the driver for the media
device. This avoids increasing the use count by the module itself and thus
making it possible to unload it when it's not in use.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

mdev->fops->owner is actually the owner of the very same module which
implements media_device_register(), so it can't be unloaded anyway. Instead,
use THIS_MODULE through a macro as does video_register_device().
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

VIDIOC_SUBDEV_[GS]_FRAME_INTERVAL IOCTLs argument structs contain the pad
field but the validity check was missing. There should be no implications
security-wise from this since no driver currently uses the pad field in the
struct.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Create consistent _vbq suffix for videobuf_queue fields.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This is already available from saa7134_dev.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Don't calculate this for every buffer, store it globally instead.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This will make the next patch a bit easier to read.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

saa7134-alsa used low-level videobuf functions to allocate and sync
DMA buffers. Replace this with saa7134-specific code. These functions
will not be available when we convert to vb2.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Just white space and coding style changes to reduce the noise in the
following patches.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This solves this bug:

https://bugzilla.kernel.org/show_bug.cgi?id=73361

The problem is that when you quit tvtime it calls STREAMOFF, but then it queues a
bunch of buffers for no good reason before closing the file descriptor.

In the past closing the fd would free the vb queue since that was part of the file
handle struct. Since that was moved to the global struct that no longer happened.

This wouldn't be a problem, but the extra QBUF calls that tvtime does meant that
the buffer list in videobuf (q->stream) contained buffers, so REQBUFS would fail
with -EBUSY.

The solution is to init the list head explicitly when releasing the file
descriptor and to not free the video resource when calling streamoff.

The real fix will hopefully go into kernel 3.16 when the vb2 conversion is
merged. Basically the saa7134 driver with the old videobuf is so full of holes it
ain't funny anymore, so consider this a band-aid for kernels 3.14 and 15.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org      # for v3.14 and up
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The register address, width and flags are encoded as a 32-bit value. Add
macros for obtaining these separately. Use the macros in register access
functions.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add a quirk for diverting registers for on some sensors, even the standard
registers are not where they can be expected to be found. Add a quirk to
to help using such sensors.

smiapp_write_no_quirk() and smiapp_read_no_quirk() functions are provided
for the use of quirk implementations.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This is more flexible. Quirk flags may be affected by configuration.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

No reason to keep this u8, really.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

It doesn't make sense to just copy the information to the PLL flags. Add a
new fields for the quirks to contain the PLL flags.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The sub-device names should be unique. Should two identical sensors be
present in the same media device they would be indistinguishable. The names
will change e.g. from "vs6555 pixel array" to "vs6555 1-0010 pixel array".
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

8-bit reads are needed in some cases; however the condition used was wrong.
Regular access (register width) was used if:

	len == SMIAPP_REG_8BIT && !only8

This causes 8-bit read access to be used always. The operator should be ||
instead: regular access can be used for 8-bit reads OR if allowed otherwise.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

SMIAPP_REG_ is the common prefix used in the driver for register related
definitions. Use it consistently.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The quirk registers mechanism which allows register to have a static read
access value from the sensor specific quirks, is not used. Remove it. It is
to be replaced by a more generic register diversion quirk soon.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

When compiling this for older kernels using the compatibility build
the compiler complains about uninitialized variables:

In file included from include/linux/kernel.h:20:0,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:7,
                 from include/linux/input.h:13,
                 from /home/hans/work/build/media_build/v4l/compat.h:9,
                 from <command-line>:0:
/home/hans/work/build/media_build/v4l/videobuf2-core.c: In function 'vb2_mmap':
include/linux/dynamic_debug.h:60:9: warning: 'plane' may be used uninitialized in this function [-Wmaybe-uninitialized]
   printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);  \
         ^
/home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:23: note: 'plane' was declared here
  unsigned int buffer, plane;
                       ^
In file included from include/linux/kernel.h:20:0,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:7,
                 from include/linux/input.h:13,
                 from /home/hans/work/build/media_build/v4l/compat.h:9,
                 from <command-line>:0:
include/linux/dynamic_debug.h:60:9: warning: 'buffer' may be used uninitialized in this function [-Wmaybe-uninitialized]
   printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);  \
         ^
/home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:15: note: 'buffer' was declared here
  unsigned int buffer, plane;
               ^

While these warnings are bogus (the call to __find_plane_by_offset will
set buffer and plane), it doesn't hurt to initialize these variables.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The stop_streaming op is only called if streaming is in progress,
so drop the unnecessary 'if (!vb2_is_streaming(vq))' check.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NPawel Osciak <pawel@osciak.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The vb2 core ignores any return code from the stop_streaming op.
And there really isn't anything it can do anyway in case of an error.
So change the return type to void and update any drivers that implement it.

The int return gave drivers the idea that this operation could actually
fail, but that's really not the case.

The pwc amd sdr-msi3101 drivers both had this construction:

        if (mutex_lock_interruptible(&s->v4l2_lock))
                return -ERESTARTSYS;

This has been updated to just call mutex_lock(). The stop_streaming op
expects this to really stop streaming and I very much doubt this will
work reliably if stop_streaming just returns without really stopping the
DMA.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NPawel Osciak <pawel@osciak.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Warnings due to __le16 / u16 conversions.
Replace offending struct and so stay on cpu domain.
Signed-off-by: NRobert Butora <robert.butora.fi@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Two new devices were added, but the cardlists weren't updated.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

External LNA between antenna connector and RF tuner is controlled
by EM28178 GPIO 0. GPIO value 1 is LNA active and value 0 is LNA
disabled.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

bit3 was not cleared always leaving driver reporting demod is not
fully locked. Do not check bit0 as it seems to be always 0.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Silicon Labs Si2157 silicon tuner driver.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Silicon Labs Si2168 DVB-T/T2/C demod driver
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add copyright and license for each file.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add copyright and license for each file.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>