Blame src/conf/pcm/hdmi.conf

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#
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#  Hardware output from HDMI
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#
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pcm.!hdmi {
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	@args [ CARD DEV AES0 AES1 AES2 AES3 ]
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	@args.CARD {
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		type string
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		default {
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			@func getenv
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			vars [
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				ALSA_IEC958_CARD
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				ALSA_PCM_CARD
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				ALSA_CARD
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			]
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			default {
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				@func refer
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				name defaults.pcm.iec958.card
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			}
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		}
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	}
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	@args.DEV {
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		type integer
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		default {
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			@func igetenv
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			vars [
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				ALSA_IEC958_DEVICE
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			]
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			default {
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				@func refer
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				name defaults.pcm.iec958.device
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			}
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		}
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	}
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	@args.AES0 {
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		type integer
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		# consumer, not-copyright, emphasis-none, mode=0
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		default 0x04
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	}
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	@args.AES1 {
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		type integer
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		# original, PCM coder
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		default 0x82
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	}
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	@args.AES2 {
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		type integer
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		# source and channel
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		default 0x00
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	}
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	@args.AES3 {
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		type integer
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		# fs=48000Hz, clock accuracy=1000ppm
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		default 0x02
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	}
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	type empty
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	slave.pcm {
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		@func refer
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		name {
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			@func concat
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			strings [
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				"cards."
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				{
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					@func card_driver
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					card $CARD
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				}
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				".pcm.hdmi." $DEV ":"
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				"CARD=" $CARD ","
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				"AES0=" $AES0 ","
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				"AES1=" $AES1 ","
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				"AES2=" $AES2 ","
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				"AES3=" $AES3
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			]
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		}
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	}
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	hint {
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		show {
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			@func refer
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			name defaults.namehint.basic
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		}
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		description "HDMI Audio Output"
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		device $DEV
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	}
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}