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ALSA: oxygen: change description of the xonar_dg.c file
Add some additional information in comments and my copyright. Signed-off-by: Roman Volkov <v1ron@mail.ru> Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
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@ -2,7 +2,7 @@
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* card driver for the Xonar DG/DGX
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*
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* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
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*
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* Copyright (c) Roman Volkov <v1ron@mail.ru>
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2.
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@ -20,27 +20,35 @@
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* Xonar DG/DGX
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* ------------
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*
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* CS4245 and CS4361 both will mute all outputs if any clock ratio
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* is invalid.
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*
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* CMI8788:
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*
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* SPI 0 -> CS4245
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*
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* Playback:
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* I²S 1 -> CS4245
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* I²S 2 -> CS4361 (center/LFE)
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* I²S 3 -> CS4361 (surround)
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* I²S 4 -> CS4361 (front)
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* Capture:
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* I²S ADC 1 <- CS4245
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*
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* GPIO 3 <- ?
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* GPIO 4 <- headphone detect
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* GPIO 5 -> route input jack to line-in (0) or mic-in (1)
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* GPIO 6 -> route input jack to line-in (0) or mic-in (1)
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* GPIO 7 -> enable rear headphone amp
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* GPIO 5 -> enable ADC analog circuit for the left channel
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* GPIO 6 -> enable ADC analog circuit for the right channel
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* GPIO 7 -> switch green rear output jack between CS4245 and and the first
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* channel of CS4361 (mechanical relay)
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* GPIO 8 -> enable output to speakers
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*
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* CS4245:
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*
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* input 0 <- mic
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* input 1 <- aux
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* input 2 <- front mic
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* input 4 <- line/mic
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* input 4 <- line
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* DAC out -> headphones
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* aux out -> front panel headphones
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*/
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