Partially revert changeset 0208bef609242a2d50b95edc713a41566cae500b:
As pointed by Stefan Ringel <stefan.ringel@arcor.de>, many packets become
damaged by this change. That means that the "size" field of Video/VBI is not
presenting 180 bytes, as it should be expected.
Thanks-to: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There are several missing things at the driver, preventing, for example,
the code to start/stop DMA to actually work. Fix them before implementing
a routine to store data at the audio buffers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Implements a callback to be used by tm6000-alsa, in order to allow filling
audio data packets.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In order to better document and be sure that the values are used
at the proper places, convert extension type into an enum and
name it as "type", instead of "id".
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
move dvb into a separate kern module
[mchehab@redhat.com: Fix several compilation breakages]
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix video decoder overflow and avoid junk audio packets
when TV signal is lost.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Merge function copy streams() and copy_packets() into a new function
copy_streams(), fixing the bugs.
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Implicit slab.h inclusion via percpu.h is about to go away. Make sure
gfp.h or slab.h is included as necessary.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
set variable dev_mode in function tm6000_start_stream and check mode
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Turn power led off, if device is disconnected
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
bugfix: Avoid loosing frames, causing image delays on some of the image lines.
[mchehab@redhat.com: Fix compilation breakage by merging with the patch fix]
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add new function for reset I2C bus. Rework some code for use this function.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix all device drivers to use the video_drvdata function instead of
maintaining a local list of minor to private data mappings. Call
video_set_drvdata to register the driver private pointer when not
already done.
Where applicable, the local list of mappings is completely removed when
it becomes unused.
[mchehab.redhat.com: patch broke into two. This one changes just tm6000]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
bugfix incorrect image and line position in videobuffer
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Set correct GPIO number for BEHOLD_WANDER/VOYAGER
Add xc5000 callback function
Small rework tm6000_cards_setup function
Small rework tm6000_config_tuner, build mode_mask by config information
Rework for support xc5000 silicon tuner
Add some information messages for more better understand an errors.
[mchehab@redhat.com: Fix CodingStyle and merge conflicts]
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Randy Dunlap <randy.dunlap@oracle.com> reported a breakage while compiling
drivers/staging/tm6000, due to this change:
commit 1c1b78bee1a94f98deeb9c24b21c4812e191646c
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu Apr 29 15:46:07 2010 -0700
USB: remove unused usb_buffer_alloc and usb_buffer_free macros
Now that all callers are converted over, remove the compatibility
functions and all is good.
As the function got renamed, the rename should also be applied at
tm6000.
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The values for the fourcc format were correct, but applied to the
wrong register. With this change, video is now barely working again with
tm6000.
While here, let's remove, for now, the memset. This way, people can
have some image when testing this device.
Yet to be fixed: parts of the image frame are missed. As we don't clean
the buffers anymore, this is "recovered" by repeating the values from a
previous frame. The quality is bad, since the image pixels will contain
data from some previous frames, generating weird delay artifacts.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- change values in function tm6000_set_fourcc_format
- disable digital source
- add vbi and audio init
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Changing a video standard takes a long time to happen on tm6000, since it
needs to load another firmware, and the i2c implementation on this device
is really slow. When the driver tries to change the video standard, a
kernel panic is produced:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffa0c7b48a>] tm6000_irq_callback+0x57f/0xac2 [tm6000]
...
Kernel panic - not syncing: Fatal exception in interrupt
By inspecting it with gdb:
(gdb) list *tm6000_irq_callback+0x57f
0x348a is in tm6000_irq_callback (drivers/staging/tm6000/tm6000-video.c:202).
197 /* FIXME: move to tm6000-isoc */
198 static int last_line = -2, start_line = -2, last_field = -2;
199
200 /* FIXME: this is the hardcoded window size
201 */
202 unsigned int linewidth = (*buf)->vb.width << 1;
203
204 if (!dev->isoc_ctl.cmd) {
205 c = (header >> 24) & 0xff;
206
Clearly, it was the trial to access *buf, at line 202 that caused the
Panic.
As ioctl is serialized, While S_STD is handled,QBUF/DQBUF won't be called.
So, the driver will run out of the buffers, and *buf will become NULL.
As, on tm6000, the same URB can contain more than one video buffer, it is
likely to hit a condition where no new buffer is available whily copying
the streams. The fix is to leave the URB copy loop, if there's no more buffers
are available.
The same bug could also be produced by an application that is not fast enough
to request new video buffers.
The same bug were reported by Bee Hock Goh <beehock@gmail.com>.
Thanks-to: Bee Hock Goh <beehock@gmail.com> for reporting the bug
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Although the code is getting the better alternates, it is not really using
it. Get the interface/alternate numbers and use it where needed.
This patch implements also one small fix at the last_line set, as
proposed by Bee Hock Goh <behock@gmail.com>.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Set correct limit for I2C packet.
Use different method for the tm5600/tm6000 and tm6010 to read word.
[mchehab@redhat.com: Fix CodingStyle]
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add a missing semicolon to fix this error:
In file included from drivers/staging/tm6000/tm6000-cards.c:32:
drivers/staging/tm6000/tm6000.h:123: error: two or more data types in
declaration specifiers
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The driver was doing malloc when buf is null causing memory corruption.
The analog part is still pretty much broken but at least fixing this
will stop it from crashing the machine when streamon.
Signed-off-by: Bee Hock Goh <beehock@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
labeling the request after tuner reading and writeing
Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab