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✏️ EDITING: CMI8338-SWIEC.conf

#
# Configuration for the CMI8338/8738 chip (w/o multi-channel support)
# using software IEC958 subframe conversion
#

<confdir:pcm/front.conf>

CMI8338-SWIEC.pcm.front.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type hw
	card $CARD
}

# default with dmix/dsnoop
CMI8338-SWIEC.pcm.default {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type asym
	playback.pcm {
		type plug
		slave.pcm {
			@func concat
			strings [ "dmix:" $CARD ]
		}
	}
	capture.pcm {
		type plug
		slave.pcm {
			@func concat
			strings [ "dsnoop:" $CARD ]
		}
	}
}

<confdir:pcm/rear.conf>

# 2nd DAC
# FIXME: we need a volume attenuator for rear channel.
CMI8338-SWIEC.pcm.rear.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type hw
	card $CARD
	device 1
}

<confdir:pcm/surround40.conf>

# for the old CM8738 with 2nd DAC for rear
CMI8338-SWIEC.pcm.surround40.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type multi
	master 1
	slaves [
		{
			pcm {
				@func concat
				strings [
					"cards.CMI8338-SWIEC.pcm.front.0:CARD=" $CARD
				]
			}
			channels 2
		}
		{
			pcm {
				@func concat
				strings [
					"cards.CMI8338-SWIEC.pcm.rear.0:CARD=" $CARD
				]
			}
			channels 2
		}
	]
	bindings [
		{ slave 0 channel 0 }
		{ slave 0 channel 1 }
		{ slave 1 channel 0 }
		{ slave 1 channel 1 }
	]
}

<confdir:pcm/iec958.conf>

CMI8338-SWIEC.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 iec958
		slave.pcm {
			type hw
			card $CARD
			device 2
		}
		status [ $AES0 $AES1 $AES2 $AES3 ]
		preamble.z 3
		preamble.y 5
		preamble.x 9
	}
	capture.pcm {
		type hw
		card $CARD
		device 2
	}
}

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