sound: oxygen: more hardware documentation
Add some comments describing the hardware pin routing. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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4 changed files with 33 additions and 0 deletions
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@ -17,6 +17,12 @@
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* CMI8788:
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*
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* SPI 0 -> AK4396
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*/
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <sound/control.h>
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@ -18,6 +18,8 @@
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*/
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/*
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* CMI8788:
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*
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* SPI 0 -> 1st AK4396 (front)
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* SPI 1 -> 2nd AK4396 (surround)
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* SPI 2 -> 3rd AK4396 (center/LFE)
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@ -27,6 +29,10 @@
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* GPIO 0 -> DFS0 of AK5385
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* GPIO 1 -> DFS1 of AK5385
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* GPIO 8 -> enable headphone amplifier on HT-Omega models
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*
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* CM9780:
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*
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* GPO 0 -> route line-in (0) or AC97 output (1) to ADC input
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*/
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#include <linux/delay.h>
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@ -41,6 +41,10 @@
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* CS4362A:
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*
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* AD0 <- 0
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*
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* CM9780:
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*
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* GPO 0 -> route line-in (0) or AC97 output (1) to CS5361 input
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*/
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#include <linux/pci.h>
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@ -32,6 +32,10 @@
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* GPIO 5 <- external power present (D2X only)
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* GPIO 7 -> ALT
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* GPIO 8 -> enable output to speakers
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*
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* CM9780:
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*
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* GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
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*/
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/*
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@ -54,6 +58,10 @@
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*
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* PCM1796 front: AD1,0 <- 0,0
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*
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* CM9780:
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*
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* GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
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*
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* no daughterboard
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* ----------------
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*
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@ -107,6 +115,15 @@
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* PCM1792A:
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*
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* AD1,0 <- 0,0
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* SCK <- CLK_OUT of CS2000 (ST only)
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*
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* CS2000:
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*
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* AD0 <- 0
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*
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* CM9780:
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*
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* GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
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*
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* H6 daughterboard
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* ----------------
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