If au0828 gets removed, we need to remove the notifiers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Extending the lifetime of the media_device struct is not handled well
by the core, as it will erase some data from the struct, when
media_device_cleanup() is called after unregistering it.
While we have a fixup patch for it already, the usage of those new
functions are needed only when we share data with other drivers.
So, better to revert the changes.
This reverts commit 182dde7c5d ("[media] media: au0828 change
to use Managed Media Controller API")
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The au0828 dev_state is actually a bit mask. It should not be
checking with "==" but, instead, with a logic and. There are some
places where it was doing it wrong.
Fix that by replacing the dev_state set/clear/test with the
bitops.
As reviewed by Shuah:
"Looks good. Tested running bind/unbind au0828 loop for 1000 times.
Didn't see any problems and the v4l2_querycap() problem has been
fixed with this patch.
After the above test, ran bind/unbind snd_usb_audio 1000 times.
Didn't see any problems. Generated media graph and the graph
looks good."
Cc: stable@vger.kernel.org
Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
au0828_v4l2_close() check for dev_state == DEV_DISCONNECTED will fail to
detect the device disconnected state correctly, if au0828_v4l2_open() runs
to set the DEV_INITIALIZED bit. A loop test of bind/unbind found this bug
by increasing the likelihood of au0828_v4l2_open() occurring while unbind
is in progress. When au0828_v4l2_close() fails to detect that the device
is in disconnect state, it attempts to power down the device and fails with
the following general protection fault:
[ 260.992962] Call Trace:
[ 260.993008] [<ffffffffa0f80f0f>] ? xc5000_sleep+0x8f/0xd0 [xc5000]
[ 260.993095] [<ffffffffa0f6803c>] ? fe_standby+0x3c/0x50 [tuner]
[ 260.993186] [<ffffffffa0ef541c>] au0828_v4l2_close+0x53c/0x620 [au0828]
[ 260.993298] [<ffffffffa0d08ec0>] v4l2_release+0xf0/0x210 [videodev]
[ 260.993382] [<ffffffff81570f9c>] __fput+0x1fc/0x6c0
[ 260.993449] [<ffffffff815714ce>] ____fput+0xe/0x10
[ 260.993519] [<ffffffff8116eb83>] task_work_run+0x133/0x1f0
[ 260.993602] [<ffffffff810035d0>] exit_to_usermode_loop+0x140/0x170
[ 260.993681] [<ffffffff810061ca>] syscall_return_slowpath+0x16a/0x1a0
[ 260.993754] [<ffffffff82835fb3>] entry_SYSCALL_64_fastpath+0xa6/0xa8
Cc: stable@vger.kernel.org
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fix to clear enable/disable/change source handlers in the media device
when media device is unregistered in au0828_unregister_media_device().
When au0828 module is removed, snd-usb-audio shouldn't call the handlers.
Clearing will ensure snd-usb-audio won't call them once au0828 is removed.
[mchehab@osg.samsung.com: fix a compilation breakage]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
For au0828_enable_source() to work, the tuner links should be
disabled and the tuner/decoder should be cached at au0828 struct.
While here, put dev->decoder cache together with dev->tuner, as
it makes easier to drop both latter if/when we move the enable
routines to the V4L2 core.
Fixes: 9822f4173f ('[media] au0828: use v4l2_mc_create_media_graph()')
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Disable tuner to demod link in au0828_media_device_register(). This step
should be done after dvb graph is created.
[mchehab@osg.samsung.com: Solve conflictst to apply it upstream]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Some functions in the au0828 driver are only used when CONFIG_MEDIA_CONTROLLER
is enabled, and otherwise defined as empty functions:
media/usb/au0828/au0828-core.c:208:13: error: 'au0828_media_graph_notify' defined but not used [-Werror=unused-function]
media/usb/au0828/au0828-core.c:262:12: error: 'au0828_enable_source' defined but not used [-Werror=unused-function]
media/usb/au0828/au0828-core.c:412:13: error: 'au0828_disable_source' defined but not used [-Werror=unused-function]
This moves the #ifdef so the entire definitions are hidden in this case.
[mchehab@osg.samsung.com: As pointed by Shuah Khan, a return 0 can be removed]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
When snd_usb_audio gets probed first, audio mixer doesn't get linked to
the decoder.
Change au0828_media_graph_notify() to handle the mixer entity getting
registered before the decoder.
Change au0828_media_device_register() to invoke
au0828_media_graph_notify() to connect entites that were created prior
to registering the notify handler.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Change vidioc_s_input() to enable the media source for the newly
selected input.
v4l2-core enables source before calling au0828's vidioc_s_input()
handler. Hence, when input selection changes, media source for the
newly selected input needs to be enabled.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
dev->ctrl_input is set in vidioc_s_input() and doesn't get set in
au0828_s_input(). As a result, dev->ctrl_input is left uninitialized
until user space calls s_input.
It works correctly because the default input value is 0 and which is
what dev->ctrl_input gets initialized via kzalloc().
Change to set dev->ctrl_input in au0828_s_input(). Also optimize
vidioc_s_input() to return if the new input value is same as the
current.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There's no reason to implement its own function to create the
media graph. So, use the core one.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
As we want au0828 to use the core function to create the MC
graphs, use enum demod_pad_index instead of
enum au8522_media_pads.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Change au0828 to check if tuner is free or not before changing tuner
configuration.
vidioc_g_tuner(), and au0828_v4l2_close() now call v4l-core interface
v4l_enable_media_source() before changing tuner configuration.
Remove au0828_enable_analog_tuner() as it is no longer needed because
v4l2-core implements common interfaces to check for media source
availability.
In addition, queue_setup() no longer needs the tuner availability check
since v4l2-core does it.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add enable_source and disable_source handlers. The enable source handler
is called from v4l2-core, dvb-core, and ALSA drivers to check if the
shared media source is free.
The disable source handler is called to release the shared media
source.
[mchehab@osg.samsung.com: fix merge conflicts]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Register entity_notify async hook to create links between existing
bridge driver entities and a newly added non-bridge driver entities. For
example, this handler creates link between V4L decoder entity and ALSA
mixer entity.
[mchehab@osg.samsung.com: fix merge conflicts and make
au0828_media_graph_notify static to shut up a warning]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Change au0828_create_media_graph() to find and disable
tuner and demod link. This helps avoid an additional
disable step when tuner is requested by video or audio.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Create tuner to demod pad link in disabled state to avoid disable step
when tuner resource is requested by dvb.
[mchehab@osg.samsung.com: fix a merge conflict]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Media device initialization and registration steps are split. There is a
window between media device init and media device register during usb
probe.
au0828 bridge driver and snd-usb-audio could try to initialize the media
device, if they simply checked, whether the device has been registered.
They also need to check whether the device has been initialized.
Change the au0828-core to check if media device is already initialized
during initialization step and check if media device is already
registered during the registration step.
[mchehab@osg.samsung.com: fix a merge conflict]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Change au0828 to use Managed Media Controller API to share media device
and coordinate creating/deleting the shared media device with the
snd-usb-audio driver. The shared media device is created as device
resource of the parent usb device of the two drivers.
Populate media device model with USB Device product name instead of
au0828 device board name. This change is necessary because, if the media
device is registered by the snd-usb-audio driver first, and it doesn't
know the au0828 board name.
[mchehab@osg.samsung.com: Fix merge conflicts]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Change au0828-core to use au8522_media_pads enum defines
instead of hard-coding the pad values.
[mchehab@osg.samsung.com: patch rebased, as the code was
moved to au0828-video.c. Also added AU8522_PAD_INPUT to the list
of pad number replacements]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Right now, media_device_pci_init and media_device_usb_init does
media_device allocation internaly. That preents its usage when
the media_device struct is embedded on some other structure.
Move memory allocation outside it, to make it more generic.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Those ancillary functions could be called even when compiled
without V4L2 support, as warned by ktest build robot:
All errors (new ones prefixed by >>):
>> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/dvb-usb/dvb-usb.ko] undefined!
>> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/dvb-usb-v2/dvb_usb_v2.ko] undefined!
>> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/au0828/au0828.ko] undefined!
Also, there's nothing there that are specific to V4L2. So, move
those ancillary functions to MC core.
No functional changes. Just function rename.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This is not used on the driver. remove it.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Except for the usbuvc driver (with has an embedded media_device
struct on it), the other drivers have a pointer to media_device.
On those drivers, replace their own implementation for the core
one. That warrants that those subdev drivers will fill the
media_device info the same way.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of having lots of #ifdefs inside au0828-core due to
V4L2, move the dependencies to au0828-video.c. That allows
removing all those ifdefs, as au0828-video is only compiled if
CONFIG_VIDEO_AU0828_V4L2.
This fixes the following warnings reported by Kbuild test
with a random config with au0828 enabled, but V4L2 is disabled.
All warnings (new ones prefixed by >>):
drivers/media/usb/au0828/au0828-core.c: In function 'au0828_usb_probe':
>> drivers/media/usb/au0828/au0828-core.c:463:1: warning: label 'done' defined but not used [-Wunused-label]
done:
^
drivers/media/usb/au0828/au0828-core.c: At top level:
drivers/media/usb/au0828/au0828-core.c:250:12: warning: 'au0828_create_media_graph' defined but not used [-Wunused-function]
static int au0828_create_media_graph(struct au0828_dev *dev)
^
Tested with a WinTV HVR 950Q (USB ID: 2040:7200)
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
It doesn't make sense to try to create the analog TV graph,
if the device fails to register at V4L2, or if it doesn't have
V4L2 support.
Thanks to Shuah for pointing this issue.
Reported-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This issue was detected by using the Coccinelle software.
1. Let us return directly if a buffer allocation failed.
2. Delete the jump label "err" then.
3. Drop the explicit initialisation for the variable "ret"
at the beginning.
4. Return zero as a constant at the end.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The output of a tuner is not only IF frequencies. They may also
output audio on some of its pins, and may even be a zero-IF tuner,
with outputs a baseband. So, rename the PAD name to make it
clearer and add a proper documentation about that at tuner.h.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Several pure digital TV devices have a frontend with the tuner
integrated on it. Add the RF connector when dvb_create_media_graph()
is called on such devices.
Tested with siano and dvb_usb_mxl111sf drivers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There are now two new warnings:
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function 'dvb_usbv2_media_device_register':
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:433:2: warning: ignoring return value of '__media_device_register', declared with attribute warn_unused_result [-Wunused-result]
media_device_register(adap->dvb_adap.mdev);
^
drivers/media/usb/dvb-usb/dvb-usb-dvb.c: In function 'dvb_usb_media_device_register':
drivers/media/usb/dvb-usb/dvb-usb-dvb.c:128:2: warning: ignoring return value of '__media_device_register', declared with attribute warn_unused_result [-Wunused-result]
media_device_register(adap->dvb_adap.mdev);
^
Those are because the drivers are not properly checking if the
media device init and register were succeeded.
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The media device node is registered and so made visible to user-space
before entities are registered and links created which means that the
media graph obtained by user-space could be only partially enumerated
if that happens too early before all the graph has been created.
To avoid this race condition, split the media init and registration
in separate functions and only register the media device node when
all the pending subdevices have been registered, either explicitly
by the driver or asynchronously using v4l2_async_register_subdev().
The media_device_register() had a check for drivers not filling dev
and model fields but all drivers in mainline set them and not doing
it will be a driver bug so change the function return to void and
add a BUG_ON() for dev being NULL instead.
Also, add a media_device_cleanup() function that will destroy the
graph_mutex that is initialized in media_device_init().
[mchehab@osg.samsung.com: Fix compilation if !CONFIG_MEDIA_CONTROLLER
and remove two warnings added by this changeset]
Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
With the MC next gen rework, what's left for media_entity_init()
is to just initialize the PADs. However, certain devices, like
a FLASH led/light doesn't have any input or output PAD.
So, there's no reason why calling media_entity_init() would be
mandatory. Also, despite its name, what this function actually
does is to initialize the PADs data. So, rename it to
media_entity_pads_init() in order to reflect that.
The media entity actual init happens during entity register,
at media_device_register_entity(). We should move init of
num_links and num_backlinks to it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Entities should have one or more functions. Calling it as a
type proofed to not be correct, as an entity could eventually
have more than one type.
So, rename the field as function.
Please notice that this patch doesn't extend support for
multiple function entities. Such change will happen when
we have real case drivers using it.
No functional changes.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
If the graph creation fails, don't register the device.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
If media controller is enabled and mdev is filled, it should
ensure that the media graph will be properly initialized.
Enforce that.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Depending on the input, an au0828 may have a different
number of connectors. add entities to represent them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The DVB core needs to unregister the media device. So, we
can't call au0828_unregister_media_device() before calling
au0828_dvb_unregister(), otherwise the DVB MC free code
(that will be implemented on the next patch) will fail.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Tuners actually have at least one connector on its input.
Add a PAD to connect it.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The entire logic that represent graph links were developed on a
time where there were no needs to dynamic remove links. So,
although links are created/removed one by one via some
functions, they're stored as an array inside the entity struct.
As the array may grow, there's a logic inside the code that
checks if the amount of space is not enough to store
the needed links. If it isn't the core uses krealloc()
to change the size of the link, with is bad, as it
leaves the memory fragmented.
So, convert links into a list.
Also, currently, both source and sink entities need the link
at the graph traversal logic inside media_entity. So there's
a logic duplicating all links. That makes it to spend
twice the memory needed. This is not a big deal for today's
usage, where the number of links are not big.
Yet, if during the MC workshop discussions, it was said that
IIO graphs could have up to 4,000 entities. So, we may
want to remove the duplication on some future. The problem
is that it would require a separate linked list to store
the backlinks inside the entity, or to use a more complex
algorithm to do graph backlink traversal, with is something
that the current graph traversal inside the core can't cope
with. So, let's postpone a such change if/when it is actually
needed.
It should also be noticed that the media_link structure uses
44 bytes on 32-bit architectures and 84 bytes on 64-bit
architecture. It will thus be allocated out of the 64-bytes and
96-bytes pools respectively. That's a 12.5% memory waste on
64-bit architectures and 31.25% on 32-bit architecture.
A linked list is less efficient than an array in this case, but
this could later be optimized if we can get rid of the reverse
links (with would reduce memory allocation by 50%).
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
With the new API, a link can be either between two PADs or between an interface
and an entity. So, we need to use a better name for the function that create
links between two pads.
So, rename the such function to media_create_pad_link().
No functional changes.
This patch was created via this shell script:
for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f) $(find include/ -name '*.h' -type f) ; do sed s,media_entity_create_link,media_create_pad_link,g <$i >a && mv a $i; done
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This logic was broken on the original patch, likely due to a
cut-and-paste mistake.
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Currently, media_entity_init() creates an array with the links,
allocated at init time. It provides a parameter (extra_links)
that would allocate more links than the current needs, but this
is not used by any driver.
As we want to be able to do dynamic link allocation/removal,
we'll need to change the implementation of the links. So,
before doing that, let's first remove that extra unused
parameter, in order to cleanup the interface first.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of seeking for the decoder every time analog stream is
started, cache it. This simplifies the code a little bit.
Requested-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add support for analog and dvb tv using media controller.
Signed-off-by: Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer
for common use, and change its type to u64 in order to handling
y2038 problem. This patch also includes all device drivers' changes related to
this restructuring.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.
After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.
To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Replace struct v4l2_format * with void * to make queue_setup()
for common use.
And then, modify all device drivers related with this change.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix missing const in fimc-lite.c]
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer.
Add new member variables - bytesused, length, offset, userptr, fd,
data_offset - to struct vb2_plane in order to cover all information
of v4l2_plane.
struct vb2_plane {
<snip>
unsigned int bytesused;
unsigned int length;
union {
unsigned int offset;
unsigned long userptr;
int fd;
} m;
unsigned int data_offset;
}
Replace v4l2_buf with new member variables - index, type, memory - which
are common fields for buffer management.
struct vb2_buffer {
<snip>
unsigned int index;
unsigned int type;
unsigned int memory;
unsigned int num_planes;
struct vb2_plane planes[VIDEO_MAX_PLANES];
<snip>
};
v4l2 specific fields - flags, field, timestamp, timecode,
sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c
struct vb2_v4l2_buffer {
struct vb2_buffer vb2_buf;
__u32 flags;
__u32 field;
struct timeval timestamp;
struct v4l2_timecode timecode;
__u32 sequence;
};
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The attribution of dev->boards occured too late, which
would couse an OOPS in media controller registration.
Signed-off-by: Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Commit c5036d61e0 ("media: au0828: drop
vbi_buffer_filled() and re-use buffer_filled()") broke video and vbi streaming.
The vb2_buffer struct was copied instead of taking a pointer to it, but
vb2_buffer_done() needs the real object, not a copy, since it is hooking
the buffer into a different list.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Embed video_device structs vdev and vbi_dev in au0828_dev.
With this change, dynamic allocation and error path logic
in au0828_analog_register() is removed as it doesn't need
to allocate and handle allocation errors. Unregister path
doesn't need to free the now static video_device structures,
hence, changed video_device.release in au0828_video_template
to point to video_device_release_empty.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The vbi_buffer_filled() and buffer_filled() did the same functionality
except for incrementing the buffer sequence, this patch drops the
vbi_buffer_filled() and re-uses buffer_filled() for vbi buffers
as well by adding the check for vb2-queue type while incrementing
the sequence numbers. Along side this patch aligns the input parameters
of buffer_filled() function appropriately.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The video_unregister_device() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Convert au0828 to use videobuf2. Tested with NTSC.
Tested video and vbi devices with xawtv, tvtime,
and vlc. Ran v4l2-compliance to ensure there are
no failures.
Video compliance test results summary:
Total: 75, Succeeded: 75, Failed: 0, Warnings: 18
Vbi compliance test results summary:
Total: 75, Succeeded: 75, Failed: 0, Warnings: 0
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
au0828 picked up UNSET from videobuf-core.h and fails to compile
if videobuf-core.h isn't included. Change it to use -1U instead
to fix the problem.
drivers/media/usb/au0828/au0828-cards.c:47:17: error: ‘UNSET’ undeclared here (not in a function)
.tuner_type = UNSET,
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
au0828_analog_register() frees au0828_dev when it fails to
locate isoc endpoint. au0828_usb_probe() continues with dvb
and rc probe and registration assuming dev is still valid.
When au0828_analog_register() fails to locate isoc endpoint,
it should return without free'ing au0828_dev. Otherwise, the
probe will fail as dev is null when au0828_dvb_register() is
called.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Convert a call to init_timer and accompanying intializations of
the timer's data and function fields to a call to setup_timer.
A simplified version of the semantic match that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression t,f,d;
@@
-t.function = f;
-t.data = d;
-init_timer(&t);
+setup_timer(&t,f,d);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This driver supports VBI and the comment "VBI support
is not yet working" is inaccurate. Remove it.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
au0828 IR stop and poll routines continue to access device
while usb disconnect is in progress. There is small window
between device disconnect and usb interface is set to null.
This results in filling the log with several of the following
error messages. Fix it to detect device disconnect condition
and avoid device access.
Nov 20 18:58:02 anduin kernel: [ 102.949819] au0828: au0828_usb_disconnect()
Nov 20 18:58:02 anduin kernel: [ 102.950046] au0828: send_control_msg() Failed sending control message, error -71.
Nov 20 18:58:02 anduin kernel: [ 102.950052] au0828: send_control_msg() Failed sending control message, error -19.
Nov 20 18:58:02 anduin kernel: [ 102.950056] au0828: send_control_msg() Failed sending control message, error -19.
Nov 20 18:58:02 anduin kernel: [ 102.950061] au0828: send_control_msg() Failed sending control message, error -19.
Nov 20 18:58:02 anduin kernel: [ 102.950065] au0828: recv_control_msg() Failed receiving control message, error -19.
Nov 20 18:58:02 anduin kernel: [ 102.950069] au0828: recv_control_msg() Failed receiving control message, error -19.
Nov 20 18:58:02 anduin kernel: [ 102.950072] au0828: recv_control_msg() Failed receiving control message, error -19.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
GIT_AUTHOR_DATE=1416486805
The functions pvr2_hdw_destroy(), rc_unregister_device() and vfree() perform
also input parameter validation. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Adds control of the IF output level to the xc5000 tuner
configuration structure. Increases the IF level to the
demodulator to fix failure to lock and picture breakup
issues (with the au8522 demodulator, in the case of the
Hauppauge HVR950Q).
This patch works with all XC5000 firmware versions.
Signed-off-by: Richard Vollkommer <linux@hauppauge.com>
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add a macro to simplify au0828 quirk table. That makes easier
to check it against the USB IDs at drivers/media/usb/au0828/au0828-cards.c.
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This is used by the I2C code in order to slow down the
speed to 20 kHz on devices with xc5000 or xc5000c.
So, it needs to be filled for all devices that use either
xc5000 or xc5000c.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Right now, the au0828 driver uses .tuner to detect if analog
tv is being used or not. By not filling .tuner fields at the
board struct, the I2C core can't do decisions based on it.
So, add a field to explicitly tell when analog TV is supported.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This comment is already at the au0828-i2c where it belongs.
So, remove it from a board's entry. It doesn't make any sense
there, as we're setting the clock to 250kHz there, slowing it
down only at the au0828-i2c.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
au0828 doesn't resume correctly and TV tuning fails with
xc_set_signal_source(0) failed message. Change au0828 dvb
suspend and resume interfaces to suspend and resume frontend
during suspend and resume respectively. dvb_frontend_suspend()
suspends tuner and fe using tuner and fe ops. dvb_frontend_resume()
resumes fe and tuner using fe and tuner ops ini before waking up
the frontend. With this change HVR950Q suspend and resume work
when system gets suspended when digital function is tuned to a
channel and with active TV stream, and after resume it went right
back to active TV stream.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When DVB is streaming and suspend is called, it will call
au0828_stop_transport(), with will clean the streaming flag.
Due to that, stop_urb_transfer() will be called twice,
causing an oops.
So, we need another flag to be used at resume, telling it
to restart DVB.
While here, add a logic at stop_urb_transfer() to prevent
it of being called twice, and convert the usb_streaming
flag into boolean.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
dev->dvb is always not null, as it is an area at the dev
memory. So, checking if (dev->dvb) is always true.
Instead of this stupid check, what the code wants to do is
to know if the DVB was successully registered.
Fix it by checking, instead, for dvb->frontend. It should
also be sure that this var will be NULL if the device was
not properly initialized.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Suspend/resume conditions can be very tricky. Add some info
printk's to help tracking what's happening there.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Instead of using printk(KERN_foo, use pr_foo() macros.
No functional changes.
Note: we should do the same for dprintk(), but that would
require to remove the dprintk levels. So, for now, let's
not touch on it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
No timers should be enabled during suspend. So,
stop them. At resume time, we should do the proper
initialization for it to keep working.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The STREAM_ON state is used by s_format callback,
but the driver never sets it.
Fix it. This will also be needed in order to handle
suspend/resume ops.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The scheduled work should be cancelled during suspend.
At resume time, we need to set the frontend again. So,
add such logic to the driver.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
At resume, we should restore the register contents. So,
reenable the bridge and GPIO settings.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Trying to make au0828 to suspend can do very bad things, as
the polling Kthread is not handled. We should disable it
during suspend, only re-enabling it at resume.
Still, analog and digital TV won't work, as we don't reinit
the settings at resume, but at least it won't hang.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Define au0828_rc_*() stubs to avoid compile errors when
VIDEO_AU0828_RC is disabled and avoid the need to enclose
au0828_rc_*() in ifdef CONFIG_VIDEO_AU0828_RC in .c files.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It doesn't make sense to handle an IR code given before
suspending after the device resume. So, turn off IR
int while suspending.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
As the RC kthread can re-enable IR int, we should first
cancel the kthread and then disable IR int.
While here, remove a temporary debug printk.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When the DVB code sets the frontend, it disables the IR
INT, probably due to some hardware bug, as there's no code
there at au8522 frontend that writes on register 0xe0.
Fixing it at au8522 code is hard, as it doesn't know if the
IR is enabled or disabled, and just restoring the value of
register 0xe0 could cause other nasty effects. So, better
to add a hack at au0828-input polling interval to enable int,
if disabled.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The IR code increases the power consumption of the device.
Allow to disable it via modprobe parameter.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This sleep was doing some debouncing on the original driver.
This is not needed on Linux, because the RC core and the input
layer already takes care of it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
HVR-950Q uses an I2C remote controller at address 0x47 (7-bits
notation). Add support for it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Commits 21dc61d3c0 and 7a1dd50b89 reduced the board I2C
speed to 20 MHz by default, due to a I2C stretch issue:
while xc5000 uses i2c stretch when a command is sent to it,
au0828 doesn't support this feature.
However, this is needed only for Xceive tuners. The other
I2C devices can work at the max speed.
So, revert the workarounds at board level, handling it at
I2C level, only when talking with xc5000.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Since all the drivers that use `struct v4l2_fh' use the core
priority checking, the setting of the flag in the drivers can
be removed.
Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
While this device doesn't have a scaler (or have it disabled),
the screen dimentions are a function of the standard. Ok, right
now, only 480 lines standards are implemented, although it
supports other ones. Yet, let's calculate the size, to make
easier to add more standards latter.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It seems that there's a bug at au0828 hardware/firmware
related to alternate setting: when the device is already at
alt 5, a further call causes the URBs to receive -ESHUTDOWN.
I found two different encarnations of this issue:
1) at qv4l2, it fails the second time we try to open the
video screen;
2) at xawtv, when audio underrun occurs, with is very
frequent, at least on my test machine.
The fix is simple: just check if alt=5 before calling
set_usb_interface().
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The analog part of au0828 is missing the tuner Kconfig dependency.
That makes the device to not work while in analog mode.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
As reported by Trevor, doing several opening/streaming/closing
operations to the demux causes it to fail.
I was able to simulate this bug too. I also noticed that,
sometimes, changing channels with au0828, the same thing
happens.
Most of the issues seem to be due to some hardware bug, that
causes the device to not fill all the URBs allocated. When
the bug happens, the only known fix is to either replug the
device, or to send an USB reset to it.
There's also a hack a the au0828 driver that starts a thread
that tries to reset the device when a package doesn't start
with a sync.
One of the culpits for this bad hardware behavior seem to be
caused by the lack of stopping and restarting the stream every
time a new channel is set.
This patch warrants that the stream will be properly reset
every time the set_frontend callback is called, partially
solving the problem.
A complete fix, however, would also need to check the PM
conditions for the tuner and demux.
Reported-by: Trevor Graffa <tlgraffa@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Sometimes, it helps to know how much data was received by
urb_completion. Add that information to the optional debug
log.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If the tuner is already disconnected, It is meaningless to go on doing the
stream-restart operation, It is better to cancel this operation.
Signed-off-by: Changbing Xiong <cb.xiong@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The g_std and s_std operations are video-related, move them to the video
ops where they belong.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Mauro Carvalho Chehab