alsa: rework mixer logic

Completely rework mixer logic. This now allows controlling a full set of
elements from a single sink's volume slider/mute button.

This also introduces sink and source "ports" that can be used to choose
different input or output ports with the UI. (i.e. "mic"/"line-in" or
"speaker"/"headphones".

The mixer paths and device maps are now configered in external
configuration files and can be tweaked as necessary.

1 files changed, 135 insertions, 0 deletions

diff --git a/src/modules/alsa/mixer/samples/Ensoniq AudioPCI--Cirrus Logic CS4297A rev 3 b/src/modules/alsa/mixer/samples/Ensoniq AudioPCI--Cirrus Logic CS4297A rev 3
new file mode 100644
index 00000000..a500a817
--- /dev/null
+++ b/src/modules/alsa/mixer/samples/Ensoniq AudioPCI--Cirrus Logic CS4297A rev 3
@@ -0,0 +1,135 @@
+Simple mixer control 'Master',0
+  Capabilities: pvolume pswitch pswitch-joined
+  Playback channels: Front Left - Front Right
+  Limits: Playback 0 - 63
+  Mono:
+  Front Left: Playback 63 [100%] [0.00dB] [on]
+  Front Right: Playback 63 [100%] [0.00dB] [on]
+Simple mixer control 'Master Mono',0
+  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
+  Playback channels: Mono
+  Limits: Playback 0 - 31
+  Mono: Playback 0 [0%] [-46.50dB] [off]
+Simple mixer control 'Headphone',0
+  Capabilities: pvolume pswitch pswitch-joined
+  Playback channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Mono:
+  Front Left: Playback 0 [0%] [-46.50dB] [off]
+  Front Right: Playback 0 [0%] [-46.50dB] [off]
+Simple mixer control '3D Control - Center',0
+  Capabilities: volume volume-joined
+  Playback channels: Mono
+  Capture channels: Mono
+  Limits: 0 - 15
+  Mono: 0 [0%]
+Simple mixer control '3D Control - Depth',0
+  Capabilities: volume volume-joined
+  Playback channels: Mono
+  Capture channels: Mono
+  Limits: 0 - 15
+  Mono: 0 [0%]
+Simple mixer control '3D Control - Switch',0
+  Capabilities: pswitch pswitch-joined
+  Playback channels: Mono
+  Mono: Playback [off]
+Simple mixer control 'PCM',0
+  Capabilities: pvolume pswitch pswitch-joined
+  Playback channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Mono:
+  Front Left: Playback 23 [74%] [0.00dB] [on]
+  Front Right: Playback 23 [74%] [0.00dB] [on]
+Simple mixer control 'Line',0
+  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Front Left - Front Right
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [on]
+  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [on]
+Simple mixer control 'CD',0
+  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Front Left - Front Right
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+Simple mixer control 'Mic',0
+  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Mono
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Mono: Playback 23 [74%] [0.00dB] [on]
+  Front Left: Capture [off]
+  Front Right: Capture [off]
+Simple mixer control 'Mic Boost (+20dB)',0
+  Capabilities: pswitch pswitch-joined
+  Playback channels: Mono
+  Mono: Playback [off]
+Simple mixer control 'Mic Select',0
+  Capabilities: enum
+  Items: 'Mic1' 'Mic2'
+  Item0: 'Mic1'
+Simple mixer control 'Video',0
+  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Front Left - Front Right
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+Simple mixer control 'Phone',0
+  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Mono
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Mono: Playback 0 [0%] [-34.50dB] [off]
+  Front Left: Capture [off]
+  Front Right: Capture [off]
+Simple mixer control 'IEC958',0
+  Capabilities: pswitch pswitch-joined
+  Playback channels: Mono
+  Mono: Playback [off]
+Simple mixer control 'PC Speaker',0
+  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
+  Playback channels: Mono
+  Limits: Playback 0 - 15
+  Mono: Playback 0 [0%] [-45.00dB] [off]
+Simple mixer control 'Aux',0
+  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Playback channels: Front Left - Front Right
+  Capture channels: Front Left - Front Right
+  Limits: Playback 0 - 31
+  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
+Simple mixer control 'Mono Output Select',0
+  Capabilities: enum
+  Items: 'Mix' 'Mic'
+  Item0: 'Mic'
+Simple mixer control 'Capture',0
+  Capabilities: cvolume cswitch cswitch-joined
+  Capture channels: Front Left - Front Right
+  Limits: Capture 0 - 15
+  Front Left: Capture 15 [100%] [22.50dB] [on]
+  Front Right: Capture 15 [100%] [22.50dB] [on]
+Simple mixer control 'Mix',0
+  Capabilities: cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Capture channels: Front Left - Front Right
+  Front Left: Capture [off]
+  Front Right: Capture [off]
+Simple mixer control 'Mix Mono',0
+  Capabilities: cswitch cswitch-exclusive
+  Capture exclusive group: 0
+  Capture channels: Front Left - Front Right
+  Front Left: Capture [off]
+  Front Right: Capture [off]
+Simple mixer control 'External Amplifier',0
+  Capabilities: pswitch pswitch-joined
+  Playback channels: Mono
+  Mono: Playback [off]