Difference between revisions of "User:ClemensLadisch"

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==CMI8788 driver status==
 
 
Changes in the Hg repository:
 
*Bugfix: When sound is played to the analog front output, use the correct sample rate when copying it to the SPDIF output.
 
*Added a (read-only) control for the channel status bits of the SPDIF input.
 
*Added ALT switch for Xonar cards.
 
 
===2007-11-29===
 
 
New beta driver available:
 
http://www.alsa-project.org/~clemens/alsa-driver-20071129.tar.bz2
 
 
To enable dmix and AC-3 passthrough, replace the files
 
[http://www.alsa-project.org/~clemens/CMI8788.conf CMI8788.conf] and
 
[http://www.alsa-project.org/~clemens/aliases.conf aliases.conf] in
 
/usr/share/alsa/cards/.
 
 
Changes:
 
*Controls for SPDIF output.
 
 
===2007-11-20===
 
 
Changes:
 
*Mixer controls for all analog inputs (but Line Input bypasses the analog mixer).
 
*SPDIF should now work.
 
 
===2007-11-15===
 
 
Changes:
 
*Playback on all other cards with AK4396 DACs should now work, too.
 
*The driver now initializes the AC'97 codec whose analog mixer is used to route the analog inputs to the ADC. Analog recording should work from all inputs.
 
*No input controls yet, all inputs (and their noise) are mixed together.
 
 
===2007-11-12===
 
 
Rewritten from scratch.
 
The driver name is now snd-oxygen (all cards except Xonar) or snd-virtuoso (Xonar).
 
 
The second most important feature, the MIDI port, now works.
 
(The most important feature, the colorful jack illumination on my Xonar card, is not controlled by software and has always worked.)<br><code>:-)</code>
 
 
----
 
 
seems to be working on all models:
 
*analog playback:
 
**at 32, 44.1, 48, 64, 88.2, 96, 176.4, 192 kHz
 
**16 or 24 bits
 
**2, 4, 6, 8 channels
 
**volume controls for all eight channels
 
**upmixing of stereo to rear and side channels
 
*analog recording
 
 
not yet implemented:
 
*front panel output
 
 
known problems:
 
*some garbage at the beginning of recorded data → ADC needs more time to settle after clock switch
 
*line input deactivates all other inputs (this must be shown in the mixer)
 
 
 
==my TODO list==
 
==my TODO list==
#CMI8788 driver<br>ca. 99.5%
+
#lots of other things
 +
#CMI8788 and Xonar drivers
 
#use hrtimers in the MIDI sequencer<br>ca. 25%
 
#use hrtimers in the MIDI sequencer<br>ca. 25%
 
#usb-audio: allow shorter-than-1ms periods for high-speed devices (just remove the code that rounds periods to USB frames)<br>0%
 
#usb-audio: allow shorter-than-1ms periods for high-speed devices (just remove the code that rounds periods to USB frames)<br>0%

Latest revision as of 12:50, 4 April 2012

[edit] my TODO list

  1. lots of other things
  2. CMI8788 and Xonar drivers
  3. use hrtimers in the MIDI sequencer
    ca. 25%
  4. usb-audio: allow shorter-than-1ms periods for high-speed devices (just remove the code that rounds periods to USB frames)
    0%
  5. usb-audio: handle MIDI write errors better
  6. move non-public headers out of linux/include/sound/
  7. PCI: annotate in-memory data structures read by bus master chips with __le/be
  8. implement (some?) OSS 4 API ioctls
  9. test (i.e., use) alsa-python
  10. use dev_printk?
  11. various subsystem send different and too many MIDI reset commands when a port is closed
  12. usb-audio: restructure
  13. OSS emulation by redirecting to user space (like FUSE, but we need ioctls and mmap)
  14. MIDI synth: support more sysex commands
  15. MIDI synth: MIDI tuning
  16. ymfpci: MIDI synth
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