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KERN_INFO
Those printk's were adding more info to a line that were already being
printed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Now, all registers will follow the same convension:
EM28XX_R<reg_number>_<reg_name>
This allows to associate a register with its value, and also with a canonical
name. Also, registers that are specific to a given chip were renamed accordingly,
as EM2800_foo (for 2800 only registers) or EM2880_foo (for registers that started
to appear on em2880).
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Before this patch, registers 0x04 and 0x08 were referenced by its value. This is
bad, since makes harder for someone to understand what this is doing.
This patch renames those two registers into an appropriate name.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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em28xx.h contains lots of different stuff inside. The better is to break it on
some files.
This patch removes the register names, moving them to a separate file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This is more conservative than just removing the msleep() from
em28xx_write_regs_req(), since some old hardware may still need it.
So, it will remove the sleep time only for those chips where this
removal were tested.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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em28xx-core.c:
- Remove sleep in i2c message routine which slows down i2c by a factor
10x. Load time for BASE firmware went from 13s to .973s
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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em28xx-dvb.c:
- Remove unneeded xc3028_ctrl structure. The driver automatically preserves
the previous value
tuner-xc2028.c:
- Make the return type for xc2028_get_reg signed, since all of the callers
are looking for "< 0" to detect errors.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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xc3028_sleep function is being used with a different meaning. This
should be called only before doing S1/S3 sleep.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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The analog entries are wrong. Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Modifies em28xx-dvb not to use videobuf-dvb, but instead to include the code
for registering dvb devices locally and use the URB management code in the
em28xx driver directly. DVB data streaming should now work.
Signed-off-by: Aidan Thornton <makosoft@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Move the URB setup and management code to em28xx-core.c and generalise
it slighlty so that the DVB code can use it.
Signed-off-by: Aidan Thornton <makosoft@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Adds the correct GPIOs and demod attach code for the HVR-900
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This will make tuner-xc2028 to change to analog, if needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Thanks to Devin Heitmueller <devin.heitmueller@gmail.com> for pointing
this issue.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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em28xx-cards.c:
- Fix reversed val/rst values in both analog_gpio and digital_gpio
vectors
- Fix crash that would was occurring during every analog startup
while looping over gpio_ctl
- Remove what appears to be a redundant setting of gpio_ctl->val
- Don't use OREN538 demodulation for the HVR-950 (prevents ATSC
scanning from working)
em28xx-dvb.c:
- Tuner should be in digital mode when issuing the reset
- Add copyright
- Change struct definition (corresponds to fix in em28xx-cards.c for
gpio_ctl looping)
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Thanks to Devin Heitmueller <devin.heitmueller@gmail.com> and Aidan
Thornton" <makosoft@googlemail.com> for pointing some errors with the
previous scenario.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This patch adds DVB support for Hauppauge HVR950.
Thanks to Michael Krufky <mkrufky@linuxtv.org> for getting those values.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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em28xx based devices with xc3028 may require some specific gpio values.
This patch adds a generic handling for such values.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Some devices have msp3400 audio decoder chip. Selects it, if em28xx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This patch adds em28xx-dvb. This driver is highly based on cx88-dvb and
saa7134-dvb.
This code currently loads and unloads successfully. However, some
changes are needed to properly support the mpeg streams and to setup
em28xx to work on DVB mode.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.
A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@ change_compare_np @
expression E;
@@
(
- jiffies <= E
+ time_before_eq(jiffies,E)
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- jiffies >= E
+ time_after_eq(jiffies,E)
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- jiffies < E
+ time_before(jiffies,E)
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- jiffies > E
+ time_after(jiffies,E)
)
@ include depends on change_compare_np @
@@
@ no_include depends on !include && change_compare_np @
@@
#include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This patch modifies Dmitri's original ibmcam driver for Linux to improve
support for the IBM PC Camera Pro. It may also offer improved support for
other models classified by the driver as 'Model 3', such as the IBM PC Camera
Pro Max.
See http://auricle.dyndns.org/xvp610/
Signed-off-by: David Hilvert <dhilvert@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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VIDEO_V4L2_COMMON=m
This patch removes zoran checks for VIDEO_V4L2, since this API is always
present, when V4L is selected.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Observation one: ->write_proc and ->data assignments aren't needed. Removed.
Observation two: codecs lists are unprotected. Patch doesn't fix this.
Observation three:
/proc/videocodecs printout is done to temporary _global_ buffer which
is freed in between. Consequently, two users hitting this file can
screwup each other.
Steps to reproduce:
modprobe videocodec
while true; do cat /proc/videocodecs &>/dev/null; done &
while true; do cat /proc/videocodecs &>/dev/null; done &
The fix is switching to seq_files, this removes code, especially some
line-length "logic".
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Fix the leak of the bttv_fh structure allocated in radio_open which
was introduced by commit 5cd3955cb8adfc1edf481e9e1cb2289db50ccacb.
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Due to the patch order change, pvrusb2 were broken. So, changeset
4c3b01f71181a52ab7735a7c52b1aa2232826075 were applied at mainstream to fix.
After the pvrusb2 changes, this patch is no longer required and should be
reverted.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Removes some fields from data structs.
There are some fields that are just caching some calculus for buffer
size. The calculus were moved to the places it were needed and the now
unused fields were removed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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videobuf-dvb were still using a function that were videobuf-dma-sg
dependent. This patch creates a generic handler for this function. This
way, videobuf-dvb can now work with all videobuf implementations.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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This patch fixes three related issues and a fourth trivial one:
- Use buffers even if no-one's currently waiting for them (fixes
underrun issues);
- Don't return incomplete/mangled frames at the start of streaming and
in the case of buffer underruns;
- Fix an issue which could cause the driver to write to a buffer that's
been freed after videobuf_queue_cancel is called (exposed by the
previous two fixes - for some reason, ignoring buffers that weren't
being waited on worked around the issue);
- Fix a bug which could cause only one field to be filled in the first
buffer (or first few buffers) after streaming is started.
Signed-off-by: Aidan Thornton <makosoft@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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There are some cases where nobody is waiting for a buffer. Due to the
lack of check, if you try to abort the userspace app, machine were
hanging, since IRQ were trying to use a buffer that were disallocated.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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A spinlock is necessary for queue_cancel to work with every driver in the tree.
Otherwise a race exists between IRQ handlers removing buffers from the queue
and queue_cancel invalidating the queue.
Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Before the patch, there were a risk of freeing and unmapping userspace memory,
while there were pending requests.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Currently, vidioc_s_fmt_cap is allowed even if streaming is running on some
other fh. This is likely to cause issues.
Block use of vidioc_s_fmt_cap if someone else has claimed access to the device.
Signed-off-by: Aidan Thornton <makosoft@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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It seems that we don't need a timeout for em28xx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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There were a small bug on videobuf-vmalloc that were preventing STREAMOFF to
work. The issue is that vmalloc'ed mmaped memory should only be freed after
being sure that there aren't any mmap usage. Otherwise, the memory remap will
stop working, and the userspace won't receive any frames.
This bug were affecting some userspace applications, like tvtime.
After this patch, tvtime started to work again with the drivers that use
videobuf-vmalloc.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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There were some bugs on videobuf-vmalloc.
Basically, remap were called with a wrong parameter. Due to that, a later remap
were needed, generating the need of some hacks on videobuf-vmalloc and
videobuf-core.
This patch fixes the remap and removes the hacks.
TODO:
- V4L2_MEMORY_USERPTR is not implemented yet. This method should be
properly implemented, in order to work with a few userspace applications.
- The driver also doesn't implement V4L2_MEMORY_OVERLAY. This method is used
only by a few applications, and are becaming obsolete, due to the increment
of cpu performance. So, most apps prefer to retrieve data to an internal
buffer, doing some processing like de-interlacing.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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I did notice a possible memory leak since iolock is could possibly be
called before a buffer has been freed.
This ensure s_fmt isn't called while the queue is busy thereby avoiding
iolock on already allocated buffers.
Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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- Remove dead code;
- Fix a few CodingStyle issues;
- Prints frame number, if debug is enabled.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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- Aborting buffer_filled if no-one's waiting on the waitqueue probably isn't
what we want, since just because no-one's waiting for it now doesn't mean they
wouldn't dequeue it in time. (vivi gets away with this, possibly because it
can fill each buffer much faster.)
- The first BUG_ON(lencopy <= 0); really isn't worth causing a kernel panic
over, especially since there are some reasons why it could trigger in normal use.
- The top and botom frames are actually the wrong way around.
Signed-off-by: Aidan Thornton <makosoft@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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by videobuf
The last videobuf changes introduced several CodingStyle errors. Fixes all those
errors, as reported by checkpatch.pl
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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