Author: wmb Date: Sat Jan 8 10:49:39 2011 New Revision: 2102 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2102
Log: OLPC XO-1.75 A2 - support Realtek ALC5631Q CODEC
Modified: cpu/arm/olpc/1.75/sound.fth
Modified: cpu/arm/olpc/1.75/sound.fth ============================================================================== --- cpu/arm/olpc/1.75/sound.fth Sat Jan 8 10:28:40 2011 (r2101) +++ cpu/arm/olpc/1.75/sound.fth Sat Jan 8 10:49:39 2011 (r2102) @@ -188,7 +188,11 @@ ;
: codec-bias-off ( -- ) +[ifdef] cl2-a1 h# 8080 h# 02 codec-set +[else] + h# c0c0 h# 02 codec-set +[then] h# 8080 h# 04 codec-set h# 0000 h# 3a codec! h# 0000 h# 3c codec! @@ -196,7 +200,7 @@ ; : linux-codec-on h# 0000 h# 26 codec! \ Don't power down any groups - h# 8000 h# 53 codec! \ Disable fast vref + h# 8000 h# 5e codec! \ Disable fast vref h# 0c00 h# 3e codec! \ enable HP out volume power h# 0002 h# 3a codec! \ enable Main bias h# 2000 h# 3c codec! \ enable Vref @@ -207,6 +211,7 @@ h# 04e8 h# 40 codec! \ General Purpose Control ; : codec-on ( -- ) +[ifdef] cl2-a1 h# 30 1 set-twsi-target h# 0000 h# 26 codec! \ Don't power down any groups h# 8002 h# 34 codec! \ Slave mode, 16 bits, left justified @@ -214,9 +219,29 @@ b# 1010.0011.1111.0011 h# 3c codec! \ All on except ClassAB, PLL, speaker mixer, MONO mixer b# 0011.1111.1100.1111 h# 3e codec! \ All on except MONO_OUT and PHONE in h# 0140 h# 40 codec! \ MCLK is SYSCLK, HPamp Vmid 1.25, ClassDamp Vmid 1.5 +[else] + h# 34 1 set-twsi-target + h# 8001 h# 34 codec! \ Slave mode, 16 bits, left justified + b# 1001.1111.1110.0000 h# 3a codec! \ All on + b# 1111.1100.0011.1100 h# 3b codec! \ All on except PLL + b# 1010.0000.0001.1101 h# 3c codec! \ All on except AX and MONO + b# 1111.1100.0000.0000 h# 3e codec! \ AXI and MONO IN off +\ h# 8c00 h# 40 codec! \ Speaker Amp Auto Ratio GAIN, use HPFs + h# 8000 h# 40 codec! \ Speaker Amp Auto Ratio GAIN, no HPFs + h# 0000 h# 42 codec! \ Use MCLK, not PLL + b# 1110.1100.1001.0000 h# 52 codec! \ Protection on + h# 4000 h# 56 codec! \ Power on Cap-free block with de-pop +[then] ; : codec-off ( -- ) +[ifdef] cl2-a1 h# ef00 h# 26 codec! \ Power down everything +[else] + 0 h# 3a codec! \ All off + 0 h# 3b codec! \ All off + 0 h# 3c codec! \ All off + 0 h# 3e codec! \ All off +[then] ; d# 48000 value sample-rate
@@ -378,6 +403,8 @@ \ Page 1498 - The data transmit register is listed as RO. How can a transmit register be RO???? [then]
+[ifdef] cl2-a1 +\ Realtek ALC5624 CODEC : mic-gain ( bits11:8 -- ) h# f00 h# 22 codec-field ; : mic+0db ( -- ) 0 mic-gain ; \ Needed : mic+20db ( -- ) h# 500 mic-gain ; \ Needed @@ -495,6 +522,143 @@ h# f9f h# 12 codec-field h# 60 h# 12 codec-set \ Enable ADC zero-cross detectors ; +[else] +\ Realtek ALC5631Q CODEC +: mic-bias-off ( -- ) h# 000c h# 3b codec-clr ; +: mic-bias-on ( -- ) h# 000c h# 3b codec-set ; + +: mic1-high-bias ( -- ) h# 80 h# 22 codec-clr mic-bias-on ; \ 0.90*AVDD, e.g. 3V with AVDD=3.3V +: mic1-low-bias ( -- ) h# 80 h# 22 codec-set mic-bias-on ; \ 0.75*AVDD, e.g. 2.5V with AVDD=3.3V +: mic2-high-bias ( -- ) h# 08 h# 22 codec-clr mic-bias-on ; \ 0.90*AVDD, e.g. 3V with AVDD=3.3V +: mic2-low-bias ( -- ) h# 08 h# 22 codec-set mic-bias-on ; \ 0.75*AVDD, e.g. 2.5V with AVDD=3.3V + +: headphones-inserted? ( -- flag ) d# 97 gpio-pin@ ; +: microphone-inserted? ( -- flag ) d# 96 gpio-pin@ ; + +\ The range is from -46.5 db to +12 dB +: gain>lr-12 ( db -- true | regval false ) + d# 12 min ( db' ) + 2* 3 / ( steps ) \ Converts -46.5 .. 12 db to -31 .. 8 steps + dup d# -31 < if ( steps ) + drop true + else ( steps ) + 8 swap - ( -steps ) + 0 max ( clipped-steps ) + dup 8 lshift or ( regval ) + false + then +; +\ The range is from -46.5 db to 0 dB +: gain>lr ( db -- true | regval false ) + 0 min ( db' ) + 2* 3 / ( steps ) \ Converts -46.5 .. 12 db to -31 .. 8 steps + dup d# -31 < if ( steps ) + drop true + else ( steps ) + 0 swap - ( -steps ) + 0 max ( clipped-steps ) + dup 8 lshift or ( regval ) + false + then +; + +\ This sets up a simple routing from the DAC to the headphone and speaker outputs +: output-config ( -- ) + h# df00 h# 1a codec! \ DACL -> OUTMIXL + h# df00 h# 1c codec! \ DACR -> OUTMIXR + h# 4040 h# 04 codec-set \ OUTMIXLR -> HPOVOLLR + h# d0d0 h# 28 codec! \ DACLR -> SPKMIXLR + h# 4040 h# 02 codec-set \ SPKMIXLR -> SPKVOLLR + h# 9000 h# 2a codec! \ SPKVOLL -> SPOLMIX, SPKVOLR -> SPORMIX + h# 0000 h# 2c codec! \ SPOxMIX -> SPKRMUX, HPOVOL -> HPMUX +; + +: mute-speakers ( -- ) h# 8080 2 codec-set ; +: set-speaker-volume ( n -- ) \ DONE + gain>lr-12 if h# 8080 then h# bfbf 2 codec-field +; +: mute-headphones ( -- ) h# 8080 4 codec-set ; +: set-headphone-volume ( n -- ) \ DONE + gain>lr if h# 8080 then h# 9f9f 4 codec-field +; +: set-volume ( n -- ) + headphones-inserted? if + set-headphone-volume + else + set-speaker-volume + then +; +d# 0 constant default-adc-gain \ 0 dB - range is -96.625 to +28.5 +d# 0 constant default-dac-gain \ 0 dB - range is -96.625 to +28.5 +d# 44 constant default-mic-gain \ 44 dB - range is 0 to 50 dB +d# 0 constant default-speaker-volume \ 0 dB - range is -46.5 to +12 +d# -10 constant default-headphone-volume \ -10 dB - range is -46.5 to 0 + +: adc-mute-all ( -- ) h# f0f0 h# 14 codec! ; +: adc-mute-mic ( -- ) h# 4040 h# 14 codec-set ; +: adc-unmute-mic ( -- ) h# 4040 h# 14 codec-clr ; +\ : adc-unmute-outmix ( -- ) h# 8080 h# 14 codec-clr ; + +\ The useful one is outmix-unmute-dac +: outmix-mute-all ( -- ) h# ff00 dup h# 1a codec! h# 1c codec! ; +: outmix-mute-mic ( -- ) h# 1000 dup h# 1a codec-set h# 1c codec-set ; +: outmix-unmute-mic ( -- ) h# 1000 dup h# 1a codec-clr h# 1c codec-clr ; +: outmix-mute-dac ( -- ) h# 2000 dup h# 1a codec-set h# 1c codec-set ; +: outmix-unmute-dac ( -- ) h# 2000 dup h# 1a codec-clr h# 1c codec-clr ; +: outmix-mute-recmix ( -- ) h# 8000 dup h# 1a codec-set h# 1c codec-set ; +: outmix-unmute-recmix ( -- ) h# 8000 dup h# 1a codec-clr h# 1c codec-clr ; + +: gain>lr-3/8 ( -- lrgain boost ) + d# 28 min + dup 0>= if ( n ) + 8 3 */ ( boost ) \ Convert to .375 dB increments + 0 swap ( lrgain boost ) + else ( n ) + dup d# -96 <= if ( n ) + drop ( ) + h# ffff h# 8080 ( lrgain boost ) + else ( n ) + negate 8 3 */ ( steps ) + dup bwjoin ( lrgain ) + 0 ( lrgain boost ) + then ( lrgain boost ) + then ( lrgain boost ) +; +: set-dac-gain ( n -- ) + dup d# -96 < if outmix-mute-dac else outmix-unmute-dac then + gain>lr-3/8 h# 0c codec! h# 10 codec! +; +: set-adc-gain ( n -- ) + gain>lr-3/8 h# 12 codec! h# 16 codec! +; +: mic1-balanced ( -- ) h# 8000 h# 8000 h# 0e codec-field ; +: mic1-single-ended ( -- ) 0 h# 8000 h# 0e codec-field ; +: mic2-balanced ( -- ) h# 0080 h# 0080 h# 0e codec-field ; +: mic2-single-ended ( -- ) 0 h# 0080 h# 0e codec-field ; + +false value external-mic? +: mic-routing ( -- n ) + mic1-single-ended mic2-single-ended + adc-unmute-mic +; +: db>mic-boost ( db -- code ) + dup d# 52 >= if drop h# 8800 exit then + dup d# 50 >= if drop h# 7700 exit then + dup d# 44 >= if drop h# 6600 exit then + dup d# 40 >= if drop h# 5500 exit then + dup d# 35 >= if drop h# 4400 exit then + dup d# 30 >= if drop h# 3300 exit then + dup d# 24 >= if drop h# 2200 exit then + dup d# 20 >= if drop h# 1100 exit then + drop h# 0000 +; +: set-mic-gain ( db -- ) + db>mic-boost h# ff00 h# 22 codec-field + mic-routing +; +: mic+0db ( -- ) 0 set-mic-gain ; +: mic+20db ( -- ) d# 20 set-mic-gain ; +[then]
\ This is called from "record" in "mic-test" in "selftest" : set-record-gain ( db -- ) @@ -511,9 +675,20 @@
: init-codec ( -- ) codec-on +[ifdef] cl2-a1 headphones-inserted? if select-headphones else select-speakers then default-speaker-volume set-speaker-volume default-headphone-volume set-headphone-volume +[else] + output-config + headphones-inserted? if + default-headphone-volume set-headphone-volume + mute-speakers + else + default-speaker-volume set-speaker-volume + mute-headphones + then +[then] default-dac-gain set-dac-gain default-mic-gain set-mic-gain default-adc-gain set-adc-gain
openfirmware@openfirmware.info
-
repository service