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From: Hans Verkuil <hverkuil@xs4all.nl>
The return value of ivtv_udma_fill_sg_list() was changed by the
highmem bugfix, but that return value was still used in ivtv-yuv.c.
Revert to the old return value, but in addition return -1 in case of
a memory allocation error.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
When trying to DMA userspace buffers to the cx23415 you need to check
whether the page is in highmem. If this is the case, then bounce buffers
have to be used to allow DMA.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Serialization is now done on the open/close/ioctl level and also when the
read/write/poll start an encoder/decoder stream.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
- add FILE debug flag for open/close/read/write/poll.
- show cmd for encoder/decoder command ioctl.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Some streams (PCM, VBI decoding) do not need that much memory, so specify
the allocated memory in kB instead of MB to limit memory usage. E.g. 1 MB
is overkill for the VBI decoding stream, 64 kB is enough.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
The TV output standard was set only on first use, which meant that the saa7127
was set to NTSC until then, leading to flickering on PAL systems.
Since the saa7127 has no firmware it is OK to initialize it immediately.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Ian Armstrong <ian@iarmst.demon.co.uk>
Using udma yuv causes the driver becomes locked into that mode. This prevents
use of the mpeg decoder & non-udma yuv output. This patch clears the
operating mode when the device is closed.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Whenever the 0x80b register is used the microcontroller should be reset.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
- Give up frame after three retries.
- When the last capture/decode ends, make sure to delete the dma_timer.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
- Invalid VBI packets should result in an empty VBI frame, not
in an zero-sized frame that causes the reader to incorrectly
return a 0 (EOF) value.
- PIO completion should not reset the sg_pending_size field.
- The DMA offset detection code should be ignored for PIO transfers:
it somehow messes up the data on the card and is not needed anyway
for PIO.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
It turns out that the cx23415/6 DMA engine cannot do scatter/gather DMA
reliably. Every so often depending on the phase of the moon and your
hardware configuration the cx2341x DMA engine simply chokes on it and
you have to reboot to get it working again.
This change replaced the scatter/gather DMA by single transfers at a time,
where the driver is now responsible for DMA-ing each buffer.
UDMA is still done using scatter/gather DMA, that will be fixed soon.
Many thanks to Mark Bryars <mark.bryars@etvinteractive.com> for discovering
the link between scatter/gather and the DMA timeouts.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
When there are no more free buffers, then buffers are stolen from the
predma queue. Buffers should be stolen from the head of that queue (which
is where the most recently added buffers are) and all buffers belonging
to a frame should be stolen. Otherwise 'half-frames' would remain in the
queue, which leads to ugly playback and complete sync failure for YUV
buffers.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
The CX2341X_ENC_INITIALIZE_INPUT firmware call requires careful handling,
otherwise the computer can freeze or the top-third of the screen can start
flickering. This patch ensures that CX2341X_ENC_INITIALIZE_INPUT is called
at the right time and in the right way.
In addition the stop capture handling was improved so that the last pending
DMA transfer is also processed. Otherwise this would be the first data that
arrived when a new capture was started which is not what you want.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp>
Signed-off-by: Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
This patch removes the 'wait_queue' memory of dvb_demux.
The patch replace the (file_operations)->release pointer with the new
function dvb_net_close() in place of dvb_generic_release().
The first part of dvb_net_close() is just a cut&paste from
dvb_generic_release(), so maybe it would be better to just call
dvb_generic_release() instead?
Acked-by: Markus Rechberger <mrechberger@gmail.com>
Acked-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
The current compat code for device_create/destroy doesn't work properly for
kernels 2.6.14 or below, and 2.6.18 to 2.6.23.
For kernels 2.6.14 and below, the device_create/destroy compat code wasn't
enabled. Those kernels need it too.
For kernels 2.6.18 to 2.6.23, compat code _was_ getting including, which
caused errors since 2.6.18 and above already have device_create and
device_destroy.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
FM radio transmission use a preemphasis/deemphasis scheme to reduce
high-frequency noise. The cx88 audio decoder is supposedly set to no
deemphasis by the current driver.
However, the "no deemphasis" setting doesn't work. On my chip, cx23883, it
produces the same result as the 75 us time constant. Maybe the default
settings on the cx23881 are for 50 us?
Since the deemphasis time constant varies by country, allow setting it via a
module parameter.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
class_device_create/class_device_destroy are being replaced by
device_create/device_destroy. This patch make it backward compatible.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Marcelo Tosatti <marcelo@kvack.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Jonathan Corbet <corbet@lwn.net>
Configuring the OLPC camera requires something over 150 register
writes. Unfortunately, querying the CAFE i2c controller too
soon after a write causes the hardware to flake. The problem had
been "solved" with an msleep() call, but, between the number of
registers and how msleep() behaves, that resulted in a 3-second
delay on camera initialization. Instead, we hand-code a wait for
the completion interrupt which avoids reading the status registers.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
dvb_ca_en50221.c and dvb-pll.c were missing compat.h, and they used kzalloc
which is something that compat.h takes care of.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Removed some ALSA compat code from bt87x and put it into compat.h, then use
this code in cx88-alsa and saa7134-alsa to avoid lots and lots of #ifs.
All the kernel version checks in cx88-alsa and saa7134 were off by one too,
which is now fixed.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Adrian Bunk <bunk@kernel.org>
The Coverity checker spotted that we'd have already oops'ed if "dev"
was NULL.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Get rid of the "CORE" prefix from cx88 printks. It was only used a few times,
and it makes it look like they're coming from the kernel core or something.
Fix the message, "TV tuner 60 at 0x1fe, Radio tuner -1 at 0x1fe", by adding a
"cx88[0]" prefix to be consistent, and to keep people who grep their dmesg
output for cx88 from missing it. Get rid of the addresses, which are always
wrong. The addresses are always set to -1, but because it's an unsigned 8-bit
value, the left shift converts it to the nonsense address 0x1fe.
In the cx8802 driver, some cut and pasted code prefixed lines with "CORE
cx88[0]:", which has been changed to "cx88[0]/2:" like the other printks from
the cx8802 driver.
Also fix some ugly printks in the cx8802 driver that used __FUNCTION__ for
KERN_INFO and KERN_ERR messages.
The changed printks in cx88-mpeg.c also needed lots of whitespace and
80-column fixes.
A bunch of misc changes in cx88-dvb.c and cx88-video.c to add message levels
or a consistent "cx88[?]/2" or "cx88[?]/0" prefix.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
A lot of code in cx88-cards.c was only used by cx88-core.c when the core state
is first allocated and initialized. Moving that task to cx88-cards makes the
driver simpler and the files more self contained.
- Module parameters tuner, radio, card, and latency move to cx88-cards.c
- cx88_boards is made static
- cx88_subids is made static and const
- cx88_bcount is eliminated
- cx88_idcount is eliminated
- cx88_card_list() is made static
- cx88_card_setup_pre_i2c() is made static
- cx88_card_setup() is made static
- cx88_pci_quirks() is moved from cx88-core to cx88-cards
The function argument "char *name" is made const too
- get_ressources() is moved from cx88-core to cx88-cards, and renamed to
cx88_get_resources()
- The code to allocate and initialize the core state struct and the chip is
moved out of cx88-core.c:cx88_get_core() and into a new function in
cx88-cards.c, cx88_core_create(). This makes both functions simpler.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
The cx88 driver state stored the ID of the board type in core->board. Every
time the driver need to get some information about the board configuration, it
uses the board number as an index into board configuration array.
This patch changes it so that the board number is in core->boardnr, and
core->board is a copy of the board configuration information. This allows
access to board information without the extra indirection. e.g.
cx88_boards[core->board].mpeg becomes core->board.mpeg.
This has a number of advantages:
- The code is simpler to write.
- It compiles to be smaller and faster, without needing the extra array lookup
to get at the board information.
- The cx88_boards array no longer needs to be exported to all cx88 modules.
- The boards array can be made const
- It should be possible to avoid keeping the (large) cx88_boards array around
after the module is loaded.
- If module parameters or eeprom info override some board configuration
setting, it's not necessary to modify the boards array, which would
affect all boards of the same type.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Kay Sievers <kay.sievers@vrfy.org>
The currently used "struct class_device" will be removed from the
kernel. Here is a trivial patch that converts DVB to use struct device.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
An error message for PCI resource allocation failure used the board type
before it was set. Just get rid of the error message, as get_ressources()
[sic] already prints one. Format that error message better, and add the pci
function and subsystem information to better associate the error with what
caused it.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
The vmux setting is only two bits, but was taking up a whole 32 in the input
description struct. By changing it to a two-bit bitfield, it can fit in what
was padding space before and drop the input size by 4 bytes, from 28 to 24.
This drops the board description struct, which has 9 inputs, from 280 to 244
bytes. Total driver size decreases by 2108 bytes.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Some lines later filp->private_data is initialized to dev again.
Since there are some checks that might fail in the mean time
keep the later version.
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
The tuner maximum frequency wasn't being set, while the minimum frequency was
set to what the maximum should have been.
The recent patch to enforce the limits effectively broken any tuner using
dvb-pll.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
tuner-simple is the only sub-driver that uses last_div, so we can free up
two bytes of memory for all other tuners, by moving this into tuner-simple's
private data area.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Hans Verkuil <hverkuil@xs4all.nl>
It took some time to get the S-O-B line from the original tvaudio patch
author, but here it is.
Signed-off-by: Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Oleg Nesterov <oleg@tv-sign.ru>
Restore unlock of cinergyt2->wq_sem, was deleted by accident.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Steven Walter <stevenrwalter@gmail.com>
With the addition of these ioctls, I'm able to watch TV with a 32-bit version
of tvtime on x86_64.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Since videobuf_waiton is called with intr=1, it can return -EINTR and therefore
err may be non-zero. This happens when the system goes into the standby state.
Without the BUG() occurring, there's no problem with standby mode while DVB
is being used.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Oliver Endriss <o.endriss@gmx.de>
Interrupt processing fixed: First handle interrupt, then acknowledge it.
Otherwise the same interrupt might occur twice.
Cleaned-up i2c interrupt handler and i2c error messages.
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
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From: Oliver Endriss <o.endriss@gmx.de>
The calculation of frequency limits ignored tuner-specific frequency limits.
Range checks and GET_INFO ioctl updated accordingly.
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
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From: Hartmut Birr <e9hack@googlemail.com>
The min frequencies of the DVB-C frontends are wrong. In Europe, the center frequency of the lowest
channel is 50.5MHz and not 51MHz. All known cards with the stv0297/tda0002x/ves1820 frontend are
able to tune to this frequency. I've changed the range to the lowest channel - 1/2 bandwidth and the
highest channel + 1/2 bandwidth. For the design of the dvb driver, the frequency ranges must be part
of the tuner and not of the frontend itself. The same frontend may be used for different tuners. The
attached patch does only fix the ranges and not the design.
Signed-off-by: Hartmut Birr <e9hack@googlemail.com>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
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