It is a bad idea to hold a spinlock and call flush_work_sync.
Move the workqueue cleanup outside the spinlock and use cancel_work_sync,
on closing the channel this seems to be the more correct function.
Remove the never used and constant return value of mISDN_freebchannel.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Cc: <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-09-13 14:58:54 -04:00
MISDN_CTRL_RX_OFF is a meachanism to discard RX data in the driver if
the data is not needed by the application. It can be used when playing
mesages, but not recording or with unidirectional protocols.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-16 15:24:36 -04:00
MISDN_CTRL_FILL_EMPTY is a meachanism to send a fixed value (normally silence)
as long no data from upper layers is available. It can be used when recording
voice messages or with unidirectional protocols.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-16 15:24:05 -04:00
If the FIFO of the card is small, many short messages are queued up to
the upper layers and the userspace. This change allows the applications
to set a minimum datalen they want from the drivers.
Create a common control function to avoid code duplication in each
driver.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-16 15:23:46 -04:00
We did allways allocate maxsize buffers, but for transparent data we know
the actual size.
Use a common function to calculate size and detect overflows.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-16 15:23:28 -04:00
It is better to send a confirm for transparent data early as possible
to avoid TX underuns.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-16 15:22:29 -04:00
For certification test it is very useful to change the layer1
timer3 value on runtime.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keilauthored and David S. Millercommited 2012-05-04 11:55:05 -04:00
Added tx-fifo information for calculation of current delay to sync tx and rx
streams for echo canceler.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Eversbergauthored and David S. Millercommited 2009-05-25 00:51:31 -07:00
New prim PH_DATA_E_IND.
- all E-ch frames are indicated by recv_Echannel(), which pushes E-Channel
frames into dch's rqueue
- if dchannel is opened with channel nr 0, no E-Channel logging
is requested
- if dchannel is opened with channel nr 1, E-Channel logging
is requested. if layer1 does not support that, -EINVAL
in return is appropriate
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Martin Bachemauthored and Karsten Keilcommited 2009-01-09 22:44:25 +01:00
This prevents underrun of fifo when filled and in case of an underrun it
prevents subsequent underruns due to jitter.
Improve dsp, so buffers are kept filled with a certain delay, so moderate
jitter will not cause underrun all the time -> the audio quality is highly
improved. tones are not interrupted by gaps anymore, except when CPU is
stalling or in high load.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Andreas Eversbergauthored and Karsten Keilcommited 2009-01-09 22:44:22 +01:00
Karsten Keil
authored and
David S. Miller
commited 
Karsten Keil
authored and
Karsten Keil
authored and
Andreas Eversberg
authored and
Martin Bachem
authored and
Karsten Keil
commited