Commit Graph

7 Commits

Author SHA1 Message Date
Uwe Hermann c43cf4d40e alsa: Use std_dev_clear(). 2013-06-02 16:46:17 +02:00
Uwe Hermann 29a27196a1 s/DRIVER_LOG_DOMAIN/LOG_PREFIX/.
This is more correct anyway, and also a bit shorter and more readable.
2013-05-03 21:59:32 +02:00
Bert Vermeulen aa0dbd683c alsa: Adjust to GVariant-based sr_config_* functions 2013-04-11 18:32:07 +02:00
Uwe Hermann 721ecf3d97 alsa: Cosmetics, coding style, typos. 2013-01-01 00:37:17 +01:00
Alexandru Gagniuc 65faa197ae alsa: Find supported samplerates during device scan
Since we are using the 'hw' interface of ALSA, we don't have the luxury of
samplerate conversion, given by the 'plughw' interface. If we try to set a
samplerate that is not supported, ALSA will just throw an error.

We can test for the supported samplerates, and create a list of supported
samplerates, then limit the selection to only those values. The frontend can
query the list of supported samplerates.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-01-01 00:37:17 +01:00
Alexandru Gagniuc 6944b2d02f alsa: Scan all soundcards and create a sigrok device per input
The alsa driver only works with device "default". This limits the driver's
scope to whatever device ALSA deems to be "default". It is desirable to have
access to all ALSA devices from sigrok.

Change the alsa device scan so that:
Each alsa device (not alsa card) gets its own sigrok device
For example,
    hw:1,0 == sigrok device 0
    hw:1,1 == sigrok device 1
    hw:2,0 == sigrok device 2
    hw:2,1 == sigrok device 3
    hw:2,2 == sigrok device 4
    [...]

We don't currently look at alsa subdevices. We only use subdevice 0.
Every input device will have its own channels (left, right, etc). Each of
those channels gets mapped to a different sigrok probe. A device with 4
channels will have 4 probes from sigrok's perspective.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-01-01 00:37:17 +01:00
Alexandru Gagniuc 9cd9f6b71c alsa: Split into api.c and protocol.c
This is the driver model agreed upon for all drivers.

As a result of the split, a devc->num_probes field had to be added in order to
reduce the interdependence between api.c and protocol.c .

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2012-12-23 17:25:37 +01:00