cmi8788: add alsa-lib config

Add a .conf file to enable dmix/dsnoop and softvol for CMI8788.

Using dmix helps mask the bug that all audio is forced to 48 kHz. :-)

src/conf/cards/CMI8788.conf

@@ -0,0 +1,149 @@
+#
+# Configuration for the CMI8788 chip
+#
+
+# TODO: use 96 or 192 kHz for dmix?
+# TODO: remove softvol
+# TODO: add hooks for SPDIF mixer controls
+
+<confdir:pcm/front.conf>
+
+CMI8788.pcm.front.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type softvol
+	slave.pcm {
+		type hw
+		card $CARD
+	}
+	control {
+		name "PCM Playback Volume"
+		card $CARD
+	}
+}	
+
+# default with dmix+softvol & dsnoop
+CMI8788.pcm.default {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type asym
+	playback.pcm {
+		type plug
+		slave.pcm {
+			type softvol
+			slave.pcm {
+				@func concat
+				strings [ "dmix:" $CARD ]
+			}
+			control {
+				name "PCM Playback Volume"
+				card $CARD
+			}
+		}
+	}
+	capture.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dsnoop:" $CARD ]
+		}
+	}
+}
+
+<confdir:pcm/surround40.conf>
+
+CMI8788.pcm.surround40.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type softvol
+	slave.pcm {
+		type hw
+		card $CARD
+		channels 4
+	}
+	control {
+		name "PCM Playback Volume"
+		card $CARD
+	}
+}	
+
+
+<confdir:pcm/surround41.conf>
+<confdir:pcm/surround50.conf>
+<confdir:pcm/surround51.conf>
+
+CMI8788.pcm.surround51.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type softvol
+	slave.pcm {
+		type hw
+		card $CARD
+		channels 6
+	}
+	control {
+		name "PCM Playback Volume"
+		card $CARD
+	}
+}	
+
+<confdir:pcm/surround71.conf>
+
+CMI8788.pcm.surround71.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type softvol
+	slave.pcm {
+		type hw
+		card $CARD
+		channels 8
+	}
+	control {
+		name "PCM Playback Volume"
+		card $CARD
+	}
+}	
+
+<confdir:pcm/iec958.conf>
+
+CMI8788.pcm.iec958.0 {
+	@args [ CARD AES0 AES1 AES2 AES3 ]
+	@args.CARD {
+		type string
+	}
+	@args.AES0 {
+		type integer
+	}
+	@args.AES1 {
+		type integer
+	}
+	@args.AES2 {
+		type integer
+	}
+	@args.AES3 {
+		type integer
+	}
+	type asym
+	playback.pcm {
+		type hw
+		card $CARD
+		device 1
+	}
+	capture.pcm {
+		type hw
+		card $CARD
+		device 1
+	}
+}
+
+# vim: ft=alsaconf