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: NMartin Bachem <m.bachem@gmx.de>
Signed-off-by: NKarsten Keil <kkeil@suse.de>

struct device already has a 'name' member, use it.
Signed-off-by: NMatthias Urlichs <matthias@urlichs.de>
Signed-off-by: NKarsten Keil <kkeil@suse.de>

To get persistent device names with hotplug we need to rename devices
sometime.
Signed-off-by: NMatthias Urlichs <matthias@urlichs.de>
Signed-off-by: NKarsten Keil <kkeil@suse.de>

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: NAndreas Eversberg <andreas@eversberg.eu>
Signed-off-by: NKarsten Keil <kkeil@suse.de>

The channelmap should have the same size on 32 and 64 bit systems
and should not depend on endianess.
Thanks to David Woodhouse for spotting this.
Signed-off-by: NKarsten Keil <kkeil@suse.de>

Add mISDN core files
Signed-off-by: NKarsten Keil <kkeil@suse.de>